Patent Application
20220048711
The invention relates to a transport carrier, a transport carrier system for an overhead conveying device, and an overhead conveying device having transport carriers for transporting hanging articles, as described in the preambles of claims 1, 17 and 19.
EP 3 028 960 A1 discloses an overhead conveying device with a drive device and transport carriers movable thereby for transporting hanging articles. Each of the transport carriers comprises a base body and a supporting body, which is exchangeably mounted on the base body by means of a connecting device, having a completely enclosed receiving opening for hooking in at least one hanger of a hanging article. The drive device is designed as a conveyor chain, and each chain link forms the base body. The supporting bodies can be exchanged when the conveyor chain is closed (thus without opening up the conveyor chain). The connecting device is designed as a plug connection. The plug connection preferably comprises at least one positive engagement element (locking lug) acting along an insertion direction of the plug connection. If the plug connection is designed without an additional positive engagement element (locking lug), the supporting body is mounted on the base body only by means of an accordingly designed force fit, so that the exchanging operation can only be carried out with considerable effort. However, if the positive engagement element (locking lug) is additionally provided, it also has to absorb a weight force.
A comparable connecting device is disclosed in EP 3 050 828 B1.
Generally, a “hanging article” is understood to mean an article, which is transported suspended, for example, by means of a hanger. Classic examples of hanging articles are articles of clothing suspended on clothes hangers, or transport bags for receiving articles. In the present context, “hanging article” stands in contrast to “lying article”. Lying articles are articles being transported resting on a ground, which moves. In contrast, hanging articles are suspended below the transport carriers and/or the overhead conveying device.
Different embodiments of transport bags are known from DE 10 2004 018 569 A1, DE 20 2017 106 993 U1 and WO 2018/130712 A2.
The object of the invention is to provide a transport carrier and a transport carrier system for an overhead conveying device with an improved connecting device between the base body and the supporting body. In particular, the supporting body is to be exchangeable from the base body with little effort and the simplest of technical means (tools). An object of the invention is to provide an overhead conveying device having transport carriers for transporting hanging articles, which overhead conveying device can be adapted flexibly to different hanging articles and with little effort to changed requirements.
The object of the invention is achieved by the connecting device
The connecting device comprises positive engagement elements of a positive connection, which are designed to complement each other and which mesh with each other, when the supporting body is mounted on the base body. In this regard, the positive engagement elements are formed to be rigid. Such rigid positive engagement elements are easy to produce and the connecting device can thus be produced in a cost-effective manner Moreover, rigid positive engagement elements are more durable and less prone to defects due to frequent exchanging operations. The first positive engagement element (undercut profile groove) is arranged in the supporting body connecting section, and the second positive engagement element (profile projection) is arranged in the base body connecting section. Conversely, the first positive engagement element (undercut profile groove) may be arranged in the base body connecting section, and the second positive engagement element (profile projection) may be arranged in the supporting body connecting section. In a preferred embodiment, the first positive engagement element (undercut profile groove) and the second positive engagement element (profile projection) are designed to have an essentially T-shaped cross-section. Otherwise, the first positive engagement element is a profile groove with a hollow-cylindrical undercut, and the second positive engagement element is a profile projection with a cylindrical profile head, the diameter of which is greater than the width of the profile web. In the context of the invention, the first positive engagement element and the second positive engagement element may also form different cross-sectional shapes.
Such a positive connection is also distinguished by the fact that the profile projection can be inserted into the profile groove by means of an insertion movement oriented perpendicular to the longitudinal axis. The insertion movement can be carried out with little effort and without additional tools. In particular, the positive connection can be established regardless of whether a particular joining force is reached or even exceeded, as it is the case for force-fitted connecting devices.
The positive engagement elements are also suitable for establishing a connection between the base body and the supporting body, which is loadable in particular with respect to rotational movements (about a vertical axis) and tensile stress (in the direction of a vertical axis due to a weight force). The connection is torsionally rigid and stable, even if the supporting body is exchangeably mounted on the base body by means of a single connecting device.
The connecting device allows quickly exchanging the supporting bodies, mostly without additional tools.
Regardless of the configuration of the (different) supporting bodies, it is possible to always (universally) use the same base body configured in an optimized manner While the base body can/has to model a variety of functions, the supporting bodies only assume one single function.
Hence, the base body comprises the drive section, which comprises, for example, at least one guide roller, which abuts along a guide device of the overhead conveying in a rollable manner, and at least one engagement section, which cooperates with a drive device of the guide roller and is acted upon by a driving force. The drive section may also be equipped with a stop, for example on a front side of the suspended support, with which stop a first suspended support runs against a stopper element, for example, and/or be equipped with a stop, which is provided, for example, on a rear side of the suspended support, with which stop a second suspended support runs against a first suspended support. Thus, the drive section may realize the functions “guiding the suspended support”, “moving the suspended support” and/or “positioning the suspended support”. If the base body is additionally provided with an identifying means, the base body also takes on the function “identifying the suspended support”.
Regardless of their configurations, the supporting bodies, however, exclusively take on the function “receiving the hanging article”.
Different supporting bodies, however, have a base body connecting section with a uniform (identical) first positive engagement element or second positive engagement element.
Preferably, the base body is made of plastic and produced in one piece using injection molding. Preferably, the supporting bodies are made of plastic and produced in one piece using injection molding. It may prove advantageous if the material properties of the base body and the supporting body differ. In particular, the plastic material of the base body may have better mechanical properties, such as strength, impact toughness, deformability, and the like, than the plastic material of the supporting body/the supporting bodies used. Different supporting bodies may use different shapings and/or different material properties. For example, in a first configuration, the supporting body may be designed with a completely enclosed receiving opening, and in a second configuration, with a suspension hook. The supporting body may have different material properties in a first configuration and in a second configuration. For example, in a first configuration, the supporting body is designed to have a higher material density than the supporting body in a second configuration. Otherwise, the supporting bodies may have different material properties in a first configuration with a suspension hook, and/or the supporting bodies may have different material properties in a second configuration with a completely enclosed receiving opening.
Depending on the transport requirements, only the supporting body is to be exchanged while the base body remains the same. If the hanging article is an article of clothing suspended on a clothes hanger, preferably, the supporting body in the second configuration with a suspension hook is used, and if the hanging article is a transport bag, preferably, the supporting body in the first configuration with a suspension hook having a completely enclosed receiving opening is used.
According to an embodiment of the invention, it is provided that the profile groove is arranged in the supporting body connecting section, and the profile projection is arranged in the base body connecting section. The second positive engagement element (profile projection) tends to be smaller in size than the first positive engagement element (profile groove). If the second positive engagement element (profile projection) is provided in the base body connecting section on the supporting body, the supporting bodies can be kept in a more space-saving manner as “
According to an advantageous embodiment, the transport carrier comprises a front wall and a rear wall, and the profile groove is formed by a profile groove extending from the front wall in the direction of the rear wall. The profile groove extends over a length starting from the front wall and preferably ends shortly before the rear wall. The supporting body connecting section, if the (undercut) profile groove is provided therein, or the base body connecting section, if the (undercut) profile groove is provided therein, has a greater length compared to the (undercut) profile groove, so that a material web remains on the profile groove end adjoining the rear wall. The profile groove end adjoining the front wall forms the insertion opening, which opens into the front wall. Thereby, an insertion direction for the supporting body is specified and an incorrect orientation of an exchanged supporting body is prevented, which would be disadvantageous especially in the case of asymmetrical suspended supports. The material web may generally also serve as an insertion limit (rigid stop), against which the profile web abuts when it has been inserted completely into the profile groove.
If the profile groove is formed by a profile groove continuously opened toward the supporting body and along its longitudinal extension, a cross-sectional contour can be produced easily, in particular by injection molding. It also proves advantageous that after removing a supporting body via the opened profile groove itself, the undercut is easily accessible, and the profile groove can be cleaned. This allows removing contaminants in the profile groove, so that a reliable connection between the base body and supporting body is ensured even after frequent exchanging operations.
According to a particularly advantageous embodiment, it is provided that the connecting device comprises mutually engageable locking elements, which are arranged and formed such that the base body and supporting body are arrested so as to be mutually prevented from being displaced in the longitudinal direction of the profile groove, if the exchangeable supporting body is mounted on the base body. The locking elements serve to arrest the relative position between the base body and the supporting body. In particular, the locking elements become effective when joining the base body and the supporting body, as they are automatically brought into engagement in the displacement movement.
Preferably, the locking elements comprise first locking elements which are formed as elastically resilient spring arms, each having a locking lug formed on a spring clip, in one of the base and supporting body connection sections on both sides of the profile groove, and second locking elements which are formed as locking openings arranged in one of the base and supporting body connection sections on both sides of the profile web. The first locking elements (flexible spring arms with one locking lug each) are arranged in the supporting body connecting section, and the second locking elements (locking openings) are arranged in the base body connecting section. Conversely, the first locking elements (flexible spring arms with one locking lug each) may be arranged in the base body connecting section, and the second locking elements (locking openings) may be arranged in the supporting body connecting section. The spring arms are each elastically bendable in a bending direction extending perpendicular to their main direction of extension and are provided with locking lugs protruding in the bending direction on a spring clip. In the engagement position of the locking elements, the locking lugs are made to abut on an edging of the locking opening.
According to an embodiment, it is provided that the connecting device comprises receiving slots arranged in one of the base body and supporting body connecting sections on both sides of the profile web, each of which forms a support surface extending in the insertion direction of the supporting body and a locking opening arranged in a rear end region in the insertion direction of the supporting body. The receiving slots are arranged in the base body connecting section if the spring arms are provided in the supporting body connecting section. Conversely, the receiving slots may be provided in the supporting body connecting section if the spring arms are provided in the base body connecting section. If the supporting body is moved relative to the base body in the insertion direction perpendicular to the longitudinal axis, the spring arms are, for example, bent inwards by the locking lugs resting on the support surfaces (in a sliding manner), and relax outwards, as soon as the locking lugs have passed the edging of the locking openings. If the locking lugs have an inclined shape, in particular a sawtooth shape, the supporting body can no longer be removed easily from the base body against the insertion direction, as the locking lugs enter into a positive connection with the edging of the locking opening.
The positive connection can be released by the spring arms being deflected in a bending direction extending perpendicular to their main direction of extension such that the locking lugs are brought out of engagement with the edging of the locking openings. Simultaneously, the supporting body is moved towards the longitudinal axis, against the insertion direction in a perpendicular direction.
For this purpose, the connecting device may have access channels, which the locking openings lead into. Preferably, a tool may be introduced into the access channels, and with that, the locking lugs may be levered out of the locking openings. A screwdriver suffices as a tool.
An embodiment, in which the supporting body is equipped with a completely enclosed receiving opening in a first configuration, or with a suspension hook in a second configuration, is also advantageous.
The configuration of different supporting bodies is a reaction to the increasing requirements for flexibility of storage and order-picking systems. Especially in e-commerce in the textile industry, an enormously high proportion of returns is to be expected. Especially regarding returns, it has proven advantageous if the returned articles are stored, sorted, and picked with an overhead conveyor system. The articles are manipulated as hanging articles. Hanging articles are articles of clothing suspended on clothes hangers, or transport bags for receiving articles. The transport bags allow manipulating an almost unlimited range of articles. The articles (such as shoes, shirts, sweaters, T-shirts, accessories) are packed in cardboard boxes, poly-bags, and the like, for example.
In the light of this, supporting bodies can be used in a first configuration with a suspension hook or in a second configuration with a completely enclosed receiving opening. supporting bodies in a first configuration with a completely enclosed receiving opening transport the suspended transport bags (hanging bags), which accommodate the articles. supporting bodies in a second configuration with a suspension hook transport articles of clothing on clothes hangers.
It may also prove advantageous if the supporting body additionally comprises
Thereby, a “rising” of the hanger on a guide edge can be permitted to a limited extent on the one hand, and on the other hand, a “de-threading” of the hanger out of the receiving section via the access channel can be avoided. The transport of the hanging articles on hangers can thus be carried out in a reliable manner, and even at high transport speeds, the loss of hanging articles can be prevented.
The transport lock is primarily used for a supporting body in a second configuration with a suspension hook for transporting articles of clothing on clothes hangers.
Advantageous embodiments of the transport lock are described in the following and are not cited again at this point.
It may also prove advantageous if the base body comprises a receiving chamber extending perpendicular to the longitudinal axis and having an opening slot formed on the end side in the direction of its longitudinal extension, and an identifying means, in particular a transponder, which can be inserted into the receiving chamber via the opening slot. The receiving chamber forms a receiving plane, which extends in the conveying direction of the transport carrier. Thus, the identifying means is also oriented transversely to the conveying direction, meaning to the side, with its main surface. Thus, reading errors can be virtually precluded. An overlap with other identifying means can also be avoided. The identifying means preferably is an RFID transponder (radio frequency identification). The identifying means serves, for example, for storing identification information regarding the transport carrier and possibly regarding the hanging article transported by the transport carrier. Furthermore, information regarding the transport path traveled and/or to be traveled may be stored in the identifying means configured as a data storage element. This information may be used to control the material flow.
According to an embodiment of the invention, it is provided that the receiving chamber comprises a base opened toward the supporting body and an elastically resilient spring arm, which spring arm has a rest surface and protrudes in the direction toward the base, so that the identifying means, in particular the transponder, is supported on the rest surface in the receiving chamber and is held by means of the spring arm. The identifying means is not arranged to be permanently integrated in the base body but may be exchanged if needed (defect, changeover to new transponder technology).
It is also advantageous if the receiving chamber and the identifying means, in particular the transponder, are arranged between the drive section and the supporting body connecting section. Hence, a reliable reading operation is possible.
The object of the invention is also achieved in that the overhead conveying device comprises multiple transport carriers, wherein all transport carriers or at least some of the transport carriers comprise a supporting body for transporting a hanging articles, which supporting body is exchangeably mounted on the base body by means of a connecting device. Thus, some of the transport carriers may be formed in one piece, in which the base body and the supporting body are permanently (not releasably) connected. In particular, it is possible keep the guide device in an overhead conveying section, in which a drive device is not provided, or the guide device and drive device in an overhead conveying section, in which a drive device is also provided, and the base bodies of the transport carriers unchanged. Only the supporting bodies have to be exchanged in order to be able to use the overhead conveying device in a more versatile manner. This modification can be carried out quickly and easily.
It is also advantageous if the transport carriers can be coupled to and uncoupled from the guide device or to/from the guide device and to/from the drive device. In other words, the drive section of the transport carriers is designed such that the transport carrier (and not just the supporting body) can be removed from the guide device or guide device and drive device without additional installation steps. Thereby, the overhead conveying device can continue to be operated, and exchanging or modifying the suspended supports requires only a short down-time.
The invention also relates to a transport carrier for an overhead conveying device, and an overhead conveying device having transport carriers for transporting hanging articles, and an unloading station for automatically unloading a transport bag, as described in the preambles of claims 20, 29, 30, 41 and 42.
Such a transport carrier for an overhead conveying device and such an overhead conveying device having transport carriers for transporting hanging articles are known, for example, from DE 10 2005 006 455A1 and WO 2017/109042 A1. The transport carriers comprise a base body and supporting bodies. The base body is provided with a drive section, which may cooperate with a guide device and/or a drive device of the overhead conveying device. The supporting body comprises a front side wall rising up, a rear side wall rising up, a lower side wall extending between the front side wall and rear side wall, and an upper side wall extending between the front side wall and rear side wall, and lastly, a receiving opening completely enclosed by the side walls for hooking in a hanger of the hanging article. The front side wall and rear side wall each have a lower wall section and an upper wall section, wherein the lower wall sections are provided with guide edges tapering towards each other in the direction towards the lower side wall and end in the lower side wall.
These known transport carriers for an overhead conveying device can barely stabilize the hanging article during its transport, and the hanging article hanging freely on the supporting body begins to swing. This may even lead to the hanging article falling off the supporting body and/or hanging articles transported behind one another becoming entangled at switches and a fault correction being required. Also, a comparatively high frictional wear occurs on the lower side wall.
An object of the invention is to provide an improved transport carrier for an overhead conveying device. In particular, a safe transport of hanging articles should be possible even at high transport speeds. An object of the invention is to provide an improved overhead conveying device having transport carriers for transporting hanging articles. In particular, a high availability of the overhead conveying device even at high transport speeds is to be achieved.
The object of the invention is achieved in that the lower side wall comprises a first rest section and a second rest section, which are arranged on both sides of a midplane spanned between the front side wall and rear side wall and each offset at a distance from the midplane, so that for transporting the hanging article on the transport carrier, the hanger is positioned between the guide edges and can be supported on the first rest section and second rest section.
If the unloading of the hanging article (transport bag) on an automatic unloading station described below is also provided, the hanger may be positioned between the guide edges and be mounted (so as to slide) on the first rest section and second rest section, when the hanging article (transport bag) is pivoted between a provisioning position and an unloading position.
The (bent) hanger of the hanging article (clothes hanger or transport bag) is thus supported on more than one rest section, namely at least on a first rest section and second rest section. The first rest section and second rest section are arranged at a distance, which is adapted to a curvature radius of the hanger, in a transport plane extending transversely, in particular perpendicular, to the transport direction (of the hanging article) between the front and rear side wall and essentially vertically,.
Pivoting and wobbling movements of the hanging article suspended on a transport carrier are reduced to an extent, which allows a higher transport speed. Moreover, due to the reduced frictional wear, the transport carrier can be used for a longer time than is possible in the prior art.
It may also prove advantageous if the guide edges enclose between them an opening angle of less than 90°. This is more likely to prevent a “rising” of the hanger on the guide edges than with opening angles of more than 90°, as is common in the prior art. Thereby, pivoting, and wobbling movements can be additionally minimized Likewise, a twisting of the hanger and/or the hanging article about a vertical axis can be reduced to a minimum. This additionally contributes to a stabilizing transport of the hanging article and/or a reliable unloading of the transport bag.
According to an advantageous embodiment, the guide edges each form a rounded guide surface. Thereby, a frictional wear on the guide edges can be minimized
It also proves advantageous if the first rest section and second rest section comprise edges extending in parallel to each other, whose minimum length is greater than a minimum opening width between the guide edges. Thereby, the support of the hanger on the first rest section and second rest section remains in place even upon a twisting of the hanger and/or the hanging article about a vertical axis. If, on one hand, the hanger “rises” on a guide edge, and the hanging article inclines laterally relative to the vertical, the hanger can still be supported on the guide edge and at least one of the relevant first and second rest sections. If, on the other hand, the hanger “rises” but the hanging article hangs essentially parallel to the transport plane or be only slightly inclined laterally relative to the vertical, the hanger can be supported on the guide edge, the first rest section and second rest section.
If each of the edges is formed having a rounded rest surface, a particularly good adaptation to the curvature radius of the hanger and thus, an improved support of the hanger on the first rest section and second rest section is achieved.
In regard to the different advantageous embodiments in claims 25 to 28, reference is made to the above descriptions.
It may also prove advantageous if the supporting body additionally forms a transport lock, which is arranged above the receiving section with a vertical distance, and forms a stop surface, which stop surface limits or impedes a relative shift of the hanger in the direction toward the transport lock. Thereby, a “rising” of the hanger on a guide edge can be permitted to a limited extent on the one hand, and on the other hand, a “de-threading” of the hanger out of the receiving section via the access channel can be avoided. The transport of the hanging articles on hangers can thus be carried out in a reliable manner, and even at high transport speeds, the loss of hanging articles can be prevented.
It is a particularly advantageous embodiment if the transport lock has an elastically resilient spring arm arranged on the rear side wall, which spring arm has a spring clip and a stop arranged on the protruding end, wherein the stop protrudes into the access channel and forms the stop surface on its side wall facing the receiving section. The transport carrier can be loaded particularly easily, and the hanging article can be transported particularly reliably. If the transport carrier is to be equipped with a hanging article, the hanger is supplied to the access channel. By means of the weight force alone, the hanger pushes (displaces) the spring clip (out of a locked position) so far from the access channel in the direction toward the rear side wall (into a release position), that it can be moved downward in the direction toward the receiving section. As soon as the spring clip has been “released” by the hanger, the spring clip is moved out of the deflected release position back into the locked position. In the locked position, a “rising” of the hanger on a guide edge is blocked by the stop. The vertical distance between the transport lock and the receiving section is preferably designed such that even in the highest hanger position, the hanger can be supported on the guide edge and possibly on at least one of the relevant first and second rest sections. If the hanging article is to be removed from the transport carrier, the hanger is pivoted about an axis extending in the transport direction and moved out laterally of the receiving section.
The elastically resilient spring arm is made from plastic and is produced in one piece with the supporting body by means of injection molding. Likewise, however, it is also possible that the elastically resilient spring arm is produced separately from the supporting body, preferably from metal, and the supporting body is produced separately from the spring arm by means of injection molding. The spring arm is connected to the supporting body on the rear side wall, for example by means of a positive and/or force-fitted connection. A materially bonded connection is also possible. The elastically resilient spring arm forms a flat spring clamped on one side.
According to a further embodiment, it may be provided that the rear side wall and the spring clip comprise guide elements, which can be brought into engagement with each other. According to a possible embodiment, the spring clip may be provided with a first guide element and a second guide element. Preferably, the first guide element and second guide element project from the spring clip in the direction toward the rear side wall. If the first guide element and second guide element are provided, they can, on one hand, be located opposite each other and be arranged symmetrically relative to a longitudinal axis of the spring clip. If the first guide element and second guide element are provided, they can, on the other hand, be located opposite each other and be arranged so as to be offset from each other in the direction of a longitudinal axis of the spring clip. According to a possible embodiment, the first guide element and second guide element may be arranged in the end region of the spring clip and extend at maximum over a third of the length of the spring clip. Specifically, the first guide element and second guide element form guide projections. According to a possible embodiment, the first guide element and second guide element may be arranged in the center and end region of the spring clip and extend at least over a third of the length of the spring clip.
According to a possible embodiment, the spring clip may, however, also be provided with a single guide element. Specifically, the guide element forms a guide pin.
According to a possible embodiment, the rear side wall may be provided with a first guide element and a second guide element. The first guide element of the spring clip and the first guide element of the rear side wall are designed to be complementary. Likewise, the second guide element of the spring clip and the second guide element of the rear side wall are designed to be complementary. If the first/second guide element of the spring clip are formed by guide projections, the first/second guide element of the rear side wall is formed by guide recesses. If the guide element of the spring clip is formed by a guide pin, the guide element of the rear side wall is formed by a guide bore.
If the spring clip is provided with a single guide element and the rear side wall is provided with a single guide element, the guide element of the spring clip and the guide element of the rear side wall are designed to be complementary.
In particular, it proves advantageous if the first/second guide elements engage with each other not only in the release position but also in the locked position of the spring clip, and thereby, the spring clip is supported laterally in the locked position/release position by the guide element(s) on the rear side wall.
In particular, it proves advantageous if the stop forms the first/second guide element, which are arranged on the spring clip.
It may also prove advantageous if the transport lock has an elastically resilient first spring arm arranged on the front side wall, which first spring arm a spring clip and a stop arranged on the protruding end, and an elastically resilient second spring arm arranged on the rear side wall, which second spring arm has a spring clip and a stop arranged on the protruding end, wherein the stops each protrude into the access channel and form the stop surfaces on a side wall facing the receiving section. According to this embodiment, the hanger is first transferred via the access channel to the elastically resilient first spring arm and elastically resilient second spring arm, which are consequently pushed apart as a result of the weight force of the hanger.
By means of the weight force alone, the hanger pushes (displaces) the spring clip of the first spring arm (out of a locked position) so far from the access channel in the direction toward the front side wall (into a release position), and pushes (displaces) the spring clip of the second spring arm (out of a locked position) so far from the access channel in the direction toward the rear side wall (into a release position) that it can be moved in the direction toward the receiving section. As soon as the spring clips have been “released” by the hanger, the spring clips are each moved out of the deflected release position back into the locked position. In the locked position, a “rising” of the hanger on a guide edge is blocked by the stops. The vertical distance between the transport lock and the receiving section is preferably designed such that even in the highest hanger position, the hanger can be supported on the guide edge and possibly on at least one of the relevant first and second rest sections. If the hanging article is to be removed from the transport carrier, the hanger is pivoted about an axis extending in the transport direction and moved out laterally of the receiving section. It may also prove advantageous if the transport lock comprises a raised area arranged on the rear side wall, which raised area protrudes into the access channel and forms the stop surface. According to this embodiment, a raised area is provided, which is designed to be essentially rigid, in contrast to the above embodiments with an elastically resilient spring arm, or an elastically resilient first spring arm and an elastically resilient second spring arm. The raised area forms an “interfering contour” in the access channel, impeding a relative shift of the hanger in the direction toward the transport lock. Thereby, a “rising” of the hanger on a guide edge can be permitted to a limited extent on the one hand, and on the other hand, a “de-threading” of the hanger out of the receiving section via the access channel can be hindered. The guide edge and the raised area run into each other (adjoin each other) and enclose an angle, in particular an angle smaller than 150°. Thereby, a hanger “rising” on a guide edge is reverted in the direction of movement at the stop surface.
The object of the invention is also achieved in that the overhead conveying device comprises a plurality of the transport carriers described above.
In this regard, the transport carriers may be formed in one piece, in which the base body and the supporting body are permanently (not releasably) connected. Otherwise, the transport carriers may comprise a supporting body for transporting a hanging article, which is exchangeably mounted on the base body by means of a connecting device, as described above. It proves particularly advantageous that, by using the suspended support according to the invention, the hanging articles on the overhead conveying device can be driven or be transported at a higher transport speed by means of gravity. Thereby, a high transport capacity is achieved. Moreover, faults while transporting the hanging articles can be largely prevented.
One object of the invention is to provide an improved unloading station for automatic unloading of hanging articles (in particular transport bags) suspended on transport carriers. In particular, a reliable unloading operation and a high availability of the unloading station is to be achieved even at high unloading speeds.
The object of the invention is achieved in that the unloading device comprises an actuation device, by means of which the transport bag along with the bag body can be tilted relative to the transport carrier and about a tilting axis extending essentially in parallel to the longitudinal extension of the overhead conveying device between a provisioning position and an unloading position, wherein in the unloading position, the articles can be discharged from transport bag through the unloading opening.
By using the transport carrier described above, it is now possible that, in the unloading position of the transport bag, the (bent) hanger of the hanging article (the transport bag) is supported on more than one rest section, namely on the first rest section and second rest section. Thus, a reliable automatic unloading operation is made possible.
For unloading an article from the transport bag
The discharge direction of the articles extends in a discharge plane extending transversely to the transport direction of the transport bag. The articles can hence be transported across an only very short discharge path, which significantly reduces the discharge time as compared to the unloading stations known from the prior art. Moreover, it is possible to place a take-over plane, onto which the article is to be discharged, essentially at the level of the unloading opening, such that a particularly gentle transfer of the article to the take-over plane is possible. The take-over plane is for example defined by a conveying device. The bag body can be adjusted into the unloading position prior to the tilting of the transport bag from the provisioning position into the unloading position, or the transport bag is already adjusted from the provisioning position into the unloading position into the unloading position during the opening operation of the bag body into the unloading position.
It is favorable for the opening and closing device to comprise an actuation device for automatic opening and closing of the bag body, by means of which actuation device the frame can be pivoted about an axis relative to the suspended support such that the bag body can be adjusted between the transport position (closed position) and the loading and/or unloading position (opened position).
The bag body can be adjusted between the transport position and the loading and/or unloading position by means of the frame which is preferably present. This results in a particularly simple structure of the transport bag. The opening and closing device can also be designed particularly simply.
It also proves to be particularly advantageous if the actuation device comprises a driver mechanism having
The driver mechanism does not require a drive and is thus structured simply. The inlet section comprises a tilted guide track that can be brought into an abutting contact with the frame such that the frame is adjusted between different tilting positions and, in the course of this, the bag body is adjusted from the transport position into the loading and/or unloading position. The adjustment between the transport position and the loading and/or unloading position can be carried out very gently. The transport bag is handled with care. Moreover, the continuous opening operation of the bag body allows the articles to be centered in the storage space, which facilitates the discharge of the articles from the good container.
It is also advantageous if the unloading section forms an essentially horizontal guide track that can be brought into an abutting contact with the frame such that the frame is held in the pivoted deflection position during the unloading operation, whereby the bag body also remains in the opened position.
The transport bag can be guided during its tilting movement. The guide track extends in parallel to the transport direction of the transport bag, as does a tilting axis.
It also proves to be advantageous if the outlet section forms a tilted guide track that can be brought into an abutting contact with the frame such that the frame is pivoted during the transport of the transport bag out of the unloading station, whereby the bag body is adjusted from the loading and/or unloading position into the transport position.
The outlet section comprises a tilted guide track that can be brought into an abutting contact with the frame such that the frame is adjusted between different tilting positions and, in the course of this, the bag body is adjusted from the loading and/or unloading position (opened position) into the transport position (closed position). The adjustment between the loading and/or unloading position and the transport position can be carried out very gently. The transport bag is handled with care.
It proves to be favorable if the overhead conveying device, for the transport of the transport bag into the unloading station and for the transport of the transport bag out of the unloading station, comprises transport carriers movable by means of a drive device or by means of gravity, wherein the transport carrier and the suspended support are coupled to one another in an articulated manner, whereby the suspended support is pivotable about an axis extending essentially in parallel to the overhead conveying device relative to the transport carrier.
The transport carrier can be moved by means of a frictional drive or a form-fit drive. An embodiment in which the transport carriers can be moved autonomously by means of a self-propulsion is also possible. The transport carriers can be transported to the unloading station and away from the unloading station very dynamically, which promotes a high unloading performance.
However, the transport carriers can also be transported by means of gravity if the profile rail on which the transport carriers are moved has a slope. This embodiment is favorable where capital costs are to be kept low.
It can also be provided that a locking device for arresting the transport carrier during an unloading operation of the transport bag is allocated to the opening and closing device of the unloading station.
The transport carrier is temporally arrested for unloading of the transport bag, which allows for an unwanted movement of the transport carrier and the transport bag in a transport direction and/or transversely to the transport direction to be prevented during the tilting movement of the transport bag. The unloading process can also be carried out particularly reliably for large and/or heavy articles.
It is also possible that the opening and closing device of the unloading station comprises a guide device for laterally guiding the transport carrier during a transport movement of the transport carrier through the overhead conveying device for transporting the transport bag into the unloading station and for transporting the transport bag out of the unloading station.
For unloading the transport bag, the transport carrier is guided laterally which prevents unwanted tilting of the transport carrier about an axis extending in a transport direction during the tilting movement of the transport bag. The unloading process can also be carried out particularly reliably for large and/or heavy articles.
An advantageous design is also possible if the actuation device of the unloading device comprises a frame structure that can be tilted by means of a drive between an initial position and an actuation position about an axis extending in parallel to the transport direction of the transport bag and the actuation device of the opening and closing device is mounted on the frame structure.
The opening and closing device is moved together with the frame structure that can be tilted between the initial position and the actuation position, which allows for an opening operation of the bag body and the tilting operation of the transport bag to be carried out simultaneously and/or for a closing operation of the bag body and the back-tilting operation of the transport bag to be carried out simultaneously. The unloading operation can hence be accelerated additionally. Moreover, the unloading operation can be carried out without stopping of the transport movement. However, in general, the transport speed of the transport carriers and the transport bag in the transport movement along the unloading station can vary.
For the purpose of better understanding of the invention, it will be elucidated in more detail by means of the figures below.
These show in a respectively very simplified schematic representation:
First of all, it is to be noted that in the different embodiments described, equal parts are provided with equal reference numbers and/or equal component designations, where the disclosures contained in the entire description may be analogously transferred to equal parts with equal reference numbers and/or equal component designations. Moreover, the specifications of location, such as at the top, at the bottom, at the side, chosen in the description refer to the directly described and depicted figure, and in case of a change of position, are to be analogously transferred to the new position.
According to the embodiment shown in
As shown in more detail in
The transport carrier 2 is stored on the guide device 10 in a suspended manner via the (first) roller 32 and can be moved in the transport direction 4 by the friction drive.
According to an embodiment schematically shown in
The transport carrier 2 is stored on the guide device 10 in a suspended manner via the (first) roller 32 and can be moved in the transport direction 4 by the positive engagement drive. Such an embodiment is described for example in DE 10 2005 006 455 A1.
A combination of a friction drive and a positive engagement drive is also possible. Such an embodiment is described for example in EP 2 121 489 B1.
The described drive devices 12 are in no way to be understood restrictively, but only show different possibilities of how a driving force is transmitted from the drive device 11 to the drive section 31 of the transport carrier 2 (mounted so as to suspended on the guide device 10), in order to move it (so as to be driven) on the guide device 10 in the transport direction 4.
The transport bag comprises a hanger 16, which can be hung in a receiving opening 54 for transporting the hanging article 3, which receiving opening 54 is provided on a supporting body 40a of the transport carrier 2 and is completely enclosed. The hanger 16 is preferably fastened to an (optional) suspended support 16 in a rigid manner
The suspended support 17 and the transport carrier 2 are coupled to one another in an articulated manner by means of a hinged connection. The hinged connection is formed by the supporting body 40a with the receiving opening 54 and the hanger 16.
According to a possible embodiment, it proves advantageous if the transport bag is unloaded at an automatic unloading station, as it is described, for example, in the Austrian patent application AT 520 517 A4 (A50320/2018) and below. To that end, it may be provided in particular that the suspended support 17 and the transport carrier 2 are coupled to one another in an articulated manner by means of a hinged connection such that the suspended support 17 is pivotable relative to the transport carrier 2 about an axis 18 extending essentially in parallel to the guide device 10 (and/or essentially in parallel to the transport direction 4).
According to the embodiment shown, the transport bag comprises an (optional) frame 19 and a bag body, which is adjustable (optionally by means of the frame 19) between a transport position (
The (optional) frame 19 is mounted so as to be pivotable on and relative to the suspended support 17, about an axis 20 that is preferably oriented essentially horizontally.
The bag body comprises
In a preferred embodiment, the front wall 21 and rear wall 22 are cut from a flexible (non-rigid) material, in particular cut from a continuous length of textile, length of film, a braid, a knitted fabric, a woven fabric or the like.
The front wall 21 comprises a first front wall section 26a, a second front wall section 26b and a base plate 27. The base plate 27 is provided in the first front wall section 26a. In particular, the first front wall section 26a comprises the base plate 27 and/or the first front wall section 26a forms the base plate 27. The base plate 27 is dimensionally stable and is preferably designed with a square shape. In general, it may also be rectangular.
The rear wall 22 comprises a first rear wall section 28a and a second rear wall section 28b. The first rear wall section 28a adjoins the first front wall section 26a, the latter being provided with the base plate 27. The rear wall 22 is formed with a lower rigidity and/or dimensional stability in the first rear wall section 28a than in the first front wall section 26a. In other words, the first front wall section 26a is designed to be more rigid and/or more dimensionally stable compared to the first rear wall section 28a.
As can be seen in
As can be seen in
As can be seen in
The base body 30 is equipped with a drive section 31, which may cooperate with a guide device 10 and/or with a drive device 11 of the overhead conveying device 1, and a supporting body connecting section 52. The supporting body 40a comprises a base body connecting section 53 and, in a first configuration, a completely enclosed receiving opening 54. The supporting body 40b comprises a base body connecting section 53 and, in a second configuration, a suspension hook 55.
The connecting device 50 comprises a profile groove 60 (first positive engagement element) extending perpendicular to the longitudinal axis 51 in one of the base and supporting body connecting sections 52, 53, and a profile projection 61 (second positive engagement element) extending perpendicular to the longitudinal axis 51 in one of the base and supporting body connecting sections 52, 53.
According to a preferred embodiment, the profile groove 60 (first positive engagement element) is arranged on the base body 30 in the supporting body connecting section 52, and the profile projection 61 (second positive engagement element) is arranged on the supporting body connecting section 40a, 40b in the base body 53.
The profile groove 60 comprises an undercut 62, which forms an insertion opening 63 on the end side in the direction of its longitudinal extension. The profile projection 61 comprises a profile web 64 and a profile head 65 formed on the profile web 64 so as to expand the cross section. The profile projection 61 can be inserted into the profile groove 60 via the insertion opening 63 in an insertion direction 66 (
In a preferred embodiment, the undercut profile groove 60 and the profile projection 61 are designed having an essentially T-shaped cross-section.
As depicted exclusively in
The undercut profile groove 60 can additionally be formed by a profile groove continuously opened toward the supporting body 40a, 40b and along its longitudinal extension.
According to a preferred embodiment, the connecting device 50 comprises mutually engageable locking elements 68, 71, which are arranged and formed such that the base body 30 and supporting body 40a, 40b are arrested so as to be mutually prevented from being displaced in the longitudinal direction of the profile groove 60, if the exchangeable supporting body 40a, 40b is mounted on the base body 30, as can be seen in
The locking elements comprise first locking elements 68, which are formed as elastically resilient spring arms, each having a locking lug 70 formed on a spring clip 69, in one of the base and supporting body connection sections 52, 53 on both sides of the profile groove 60. The locking elements comprise second locking elements 71, which are formed as locking openings 72 arranged in one of the base and supporting body connection sections 52, 53 on both sides of the profile web 64.
According to a preferred embodiment, the first locking elements 68 (spring arms with locking lugs 70) are arranged on the base body 30 in the supporting body connecting section 52, and the second locking elements (locking openings 72) are arranged on the supporting body 40a, 40b in the base body connecting section 53.
According to a preferred embodiment, the connecting device 50 comprises receiving slots 80 arranged in one of the base body and supporting body connecting sections 52, 53 on both sides of the profile web 64, each of which forms support surfaces 81 extending in the insertion direction 66 of the supporting body 40a, 40b and a locking opening 72 arranged in a rear end region in the insertion direction 66 of the supporting body 40a, 40b.
If the supporting body 40a, 40b is moved relative to the base body 30 in the insertion direction 66 perpendicular to the longitudinal axis 51, the spring arms are, for example, bent inwards by the locking lugs 70 resting on the support surfaces 81(in a sliding manner), and relax outwards, as soon as the locking lugs 70 have passed the edging of the locking openings 72. For example, sawtooth-like locking lugs 70 engage behind the edging of the locking openings 72.
The positive connection can be released by the spring arms being deflected in a bending direction extending perpendicular to their main direction of extension such that the locking lugs 70 are brought out of engagement with the edging of the locking openings 72. Simultaneously, the supporting body 40a, 40b is moved towards the longitudinal axis 51 against the insertion direction 66 in a perpendicular direction.
For this purpose, the connecting device may have access channels 82, which the locking openings 72 lead into. Preferably, a tool may be introduced into the access channels 82, and with that, the locking lugs 70 may be levered out of the locking openings 72.
As depicted, for example, in
In particular, the receiving chamber 85 comprises a base opened toward the supporting body connecting section 52 and an elastically resilient spring arm 88 which has a rest surface, and which protrudes in the direction toward the base. The RFID transponder which is inserted into the receiving chamber 85 is supported on the rest surface and is held by the spring arm 88.
The receiving chamber 85 and the identifying means 87 are arranged in a transport carrier identifying section 89 between the drive section 31 and the supporting body connecting section 52.
The first supporting body 40a or the second supporting body 40b in the second configuration may be mounted to the base body 30 so as to be exchangeable by means of the connecting device 50 described above, in order to optionally form a transport carrier 2 in a first configuration with a completely enclosed receiving opening 54 for transporting a hanging article 3 or a transport carrier 2 in a second configuration with a suspension hook 55 for transporting a hanging article 3. The transport carrier 2 in the first configuration preferably serves for transport in a transport bag, wherein its hanger 16 is hung into the receiving opening 54 (see for example
Irrespective of the configuration which the supporting bodies 40a, 40b have, these are always provided with the structurally equal and/or identical base body connecting section 53.
The receiving opening 54 for hanging a hanger 16 of the hanging articles 3 is completely enclosed by the side walls 42, 43, 90, 91. The front side wall 42 and the rear side wall 43 each comprise a lower wall section 92 and an upper wall section 93. The lower wall sections 92 are provided with guide edges 94 tapering towards each other in the direction towards the lower side wall 90 and end in the lower side wall 90. The first supporting body 40a may optionally have a first rest section 95 and a second rest section 96 on the lower side wall 90, as will be described below.
In
At this point, it should be noted that in
As opposed to this, the base body 30 and the supporting body 40b may also be connected to one another permanently. Thus, the connecting device 50 is omitted, which is, however, not shown in these figures.
According to this embodiment, the transport carrier 2′ for transporting a hanging article 3 on the overhead conveying device 1 comprises
The front side wall 180 and the rear side wall 181 each comprise a lower wall section. The lower wall sections are provided with guide edges 188 tapering towards each other in the direction towards the lower side wall 182 and end in the lower side wall 182.
According to an advantageous first embodiment, the lower side wall 182 comprises the first rest section 95 and the second rest section 96, which are arranged on both sides of the mid-plane 98 spanned between the front side wall 180 and the rear side wall 181 and each offset at a distance from the midplane 98, such that the hanger 16 is positioned between the guide edges 188 and can be supported on the first rest section 95 and the second rest section 96.
According to an advantageous second embodiment, the supporting body 40b additionally comprises a transport lock 190, which is arranged above the receiving section 184 with a vertical distance, and forms a stop surface 191, which stop surface 191 limits or impedes a relative shift of the hanger 16 in the direction toward the transport lock 190.
According to the second embodiment (which may form the subject matter of an independent application), the transport carrier 2′, for transporting a hanging article 3 on the overhead conveying device 1, comprises
Accordingly, the transport carrier 2′ may also form a lower side wall 182 which comprises no additional first rest section 95 and second rest section 96.
An advantageous third embodiment results from the combination of the first embodiment and the second embodiment.
According to the third embodiment (which may form the subject matter of an independent application), the transport carrier 2′, for transporting a hanging article 3 on the overhead conveying device 1, comprises
As already described in detail above and as is to be applied likewise to the embodiments described in
Although this is not shown in
In the (deflected) release position of the spring clip 192, the access channel 185 is widened in cross-section to such an extent that a schematically depicted hanger 16 can be fed onto the receiving section 184 via the access channel 185, as can be seen in
It may also prove advantageous for the spring clip 192 to be supported on a bearing point 197 in the rear end region. The bearing point 197 may be formed on the spring clip 192, such that the bearing point 197 rests against/may rest against the rear side wall 181, in particular when the spring clip 192 is in a (non deflected) locked position. Alternatively, the bearing point 197 may be formed on the rear side wall 192, such that the bearing point 197 rests against/may rest against the spring clip 192, in particular when the spring clip 192 is in a (non deflected) locked position. It may also be provided that the supporting body 42b is equipped with non depicted additional weight which is arranged on the rear side wall 181. The additional weight may also form said bearing point 197. It should be noted that for the sake of clarity the bearing point 197 is depicted schematically and merely in
As can be seen in
Specifically, the spring clip 192 may be provided with a first guide element 194 and a second guide element 194. Preferably, the first guide element 194 and second guide element 194 project from the spring clip 192 in the direction toward the rear side wall 181. The first guide element and the second guide element are preferably arranged on both sides of the spring clip 192 and transversely opposite to a longitudinal axis of the spring clip 192, as can be seen in
According to the embodiment shown, the rear side wall 181 is provided with a first guide element 195 and a second guide element 195. The first guide element 194 of the spring clip 192 and the first guide element 195 of the rear side wall 181 are designed to be complementary. Likewise, the second guide element 194 of the spring clip 192 and the second guide element 195 of the rear side wall 181 are designed to be complementary. If the first/second guide element 194 of the spring clip 192 are formed by guide projections, the first/second guide element 195 of the rear side wall 181 is formed by guide recesses.
d show a second embodiment of the transport lock 190′, which has an elastically resilient first spring arm arranged on the front side wall 180, which first spring arm has a spring clip 192a and a stop 193 arranged on the protruding end, and an elastically resilient second spring arm arranged on the rear side wall 181, which second spring arm has a spring clip 192b and a stop 193 arranged on the protruding end, wherein the stops 193 each protrude into the access channel 185 and form the stop surfaces 191 on a side wall facing the receiving section 184. In
Additionally, the overhead conveying device 1 may comprise a loading station for automatic loading of the transport carriers 2′ with hanging articles 3, which hang on hangers 16.
The loading station for automatic loading of the transport carriers 2′ comprises a loading rail 200 arranged below the guide device 10 and extending in parallel to the guide device 10, on which loading rail 200 the hanging articles 3 are fed and on which they are provided.
The loading rail 200 comprises a provisioning section located upstream, in which the hanging articles 3 can be provided on hangers 16, and a transfer section located downstream, in which the hanging articles 3 can be transferred from the loading rail 200 to the transport carrier 2′.
The provisioning section forms a guide rest 201, and the transfer section forms a track rest 202.
With respect to the guide rest 201, the track rest 202 may form a first guideway 203 sloping downwards in the transport direction 4, and in the longitudinal course, an overrun raised area 204 protruding on the first guideway 203.
The transport carrier 2′ moves the hanger 16 out of the provisioning section shown in
If the overrun raised area 204 is run over by the hanger 16 in the transport direction 4, as shown in
In
As can be seen in
The automatic loading of the transport carrier 2′ can be carried out continuously (without standstill).
At this point, it should be noted that a transport carrier 97 is to be read synonymously in the embodiments in
The transport carrier 97 comprises the vertical longitudinal axis 51, the base body 30 with the drive section 31, which may cooperate with the guide device 10 and/or with the drive device 11 of the overhead conveying device 1, and the supporting body 40a, 40b.
In contrast to the embodiment described above, however, the base body 30 and supporting body 40a are permanently connected to one another. Thus, the connecting device 50 is omitted.
The base body 30 is constructed as described above and is not described again at this point.
The supporting body 40a is constructed as described above, and it comprises a first rest section 95 and a second rest section 96 on the lower side wall 90. The first rest section 95 and second rest section 96 are arranged on both sides of a midplane 98 spanned between the front side wall 42 and rear side wall 43 and each offset at a distance from the midplane 98.
Thereby, the hanger 16 can be positioned between the guide edges 94 and supported on the first rest section 95 and second rest section 96 for transporting the hanging articles 3 on the transport carrier 97. If an unloading station for automatically unloading the transport bag is provided, as it is described in the Austrian patent application AT 520 517 A4 (A50320/2018) and A50059/2019 as well as below, the hanger 16 may be positioned between the guide edges 94 and supported on one of the first/second rest sections 95, 96 during the unloading operation of the transport bag.
The first rest section 95 and the second rest section 96 comprise edges 99 extending in parallel to each other, the minimum length 100 of which is greater than a minimum opening width 101 between the guide edges 94. The (longitudinal) edges 99 each form a rounded rest surface.
As depicted in
At this point, it should be noted that the transport carrier 97 may optionally comprise the connecting device 50 between the base body 30 and the supporting body 40a, 40b, as described above.
In other words, the transport carrier according to
It is also possible that, in turn, the receiving chamber 85 and the identifying means 87 are provided, as described above, wherein the transport carrier identifying section is then located in the drive section 31, as it is not shown in further detail.
The overhead conveyor system may additionally comprise an unloading station 104 for automatic unloading of the transport bag.
a and 16b show the unloading station 104 in different views. It comprises the overhead conveying device 1 for transporting the transport bags into the unloading station 104 and for transporting the transport bags out the unloading station 104, an opening and closing device 139 for adjusting the bag body between the transport position and the loading and/or unloading position, and an unloading device 140 for unloading the bag body adjusted into the opened position.
The opening and closing device 139 comprises an actuation device for automatic opening and closing of the bag body, by means of which actuation device the frame 19 can be pivoted about the axis 20 relative to the suspended support 17 such that the bag body can be adjusted between the transport position and the loading and/or unloading position.
According to a possible embodiment, the actuation device comprises a driver mechanism for automated opening and closing of the bag body. The driver mechanism preferably comprises a first driver mechanism 141 and a second driver mechanism 142 which are arranged on both sides and below the overhead conveying device 1 for transporting the transport bag into the unloading station 104 and for transporting the transport bag out of the unloading station 104. In particular, the first driver mechanism 141 and the second driver mechanism 142 are arranged symmetrically to one another with respect to the transport bag, in particular the frame 19. However, in general, only one of the driver mechanisms 141 can be provided.
The first driver mechanism 141 is affixed to a first support frame 143 and the second driver mechanism 142 is affixed to a second support frame 144. The first support frame 143 and the second support frame 144 are parts of the actuation device.
In the shown exemplary embodiment, the first driver mechanism 141 comprises a lower guide assembly and an upper guide assembly, the second driver mechanism 142 also comprises a lower guide assembly and an upper guide assembly. The lower guide assembly and the upper guide assembly are arranged on top of one another at a distance such that between the lower guide assembly and the upper guide assembly of the first driver mechanism 141 and between the lower guide assembly and the upper guide assembly of the second driver mechanism 142, in each case, one of the longitudinal struts can be accommodated. The distance essentially corresponds to the diameter of the longitudinal strut 64. However, the first driver mechanism 141 and/or the second driver mechanism 142 can also comprise just the lower guide track.
The lower guide assembly and, if provided, the upper guide assembly of the first driver mechanism 141 and, if provided, of the second driver mechanism 142 comprise an inlet section 145 located upstream in a transport direction 4 of the transport bag, an outlet section 146 located downstream thereof, and an unloading section 147 located between the inlet section 145 and the outlet section 146. The lower guide assembly and, if provided, the upper guide assembly of the first driver mechanism 141 and/or of the second driver mechanism 142 extend in parallel to the transport direction 4 of the transport bag.
The inlet section 145 forms a tilted guide track 148 that can be brought into an abutting contact with the frame 19, in particular the longitudinal struts, such that the frame 19 is pivoted during transport of the transport bag into the unloading station 104, whereby the bag body is adjusted from the transport position in the direction of the loading and/or unloading position (
The unloading section 147 forms a guide track 149 which is essentially horizontal and which can be brought into an abutting contact with the frame 19, in particular the longitudinal struts, such that the frame 19 is held in the pivoted deflection position during the unloading operation whereby the bag body also remains in the opened position (
The outlet section 146 forms a tilted guide track 150 that can be brought into an abutting contact with the frame 19, in particular the longitudinal struts, such that the frame 19 is pivoted during transport of the transport bag out of the unloading station 104, whereby the bag body is adjusted from the loading and/or unloading position in the direction of the transport position (
As can be seen in the figures, the unloading device 140 comprises an actuation device 156, by means of which transport bag along with the bag body can be tilted relative to the suspended support 97 (and/or suspended support 2) and about a tilting axis 157 extending essentially in parallel to the longitudinal extension of the overhead conveying device 1 between a provisioning position 158 (
In a preferred first embodiment, the transport bag, along with the bag body adjusted into the opened position (unloading position), is tilted relative to the suspended support 97 and about the tilting axis 157 between a provisioning position 158 (
After the unloading, the transport bag, along with the bag body adjusted into the unloading position, is tilted back from the unloading position 159 (
According to a second embodiment, the transport bag is tilted, still during the adjustment movement of the bag body between the transport position and the unloading position, relative to the suspended support 97 and about the tilting axis 157 between the provisioning position 158 and the unloading position 159. In other words, for unloading, the transport bag is tilted from the provisioning position 158 into the unloading position 159 relative to the suspended support 97 and about the tilting axis 157, still during the opening operation of the bag body from the transport position in the direction of the unloading position. Likewise, the transport bag can be tilted from the unloading position 159 into the provisioning position 158 relative to the suspended support 97 and about the tilting axis 157 after unloading and during the closing operation of the bag body from the unloading position in the direction of the transport position.
The actuation device 156 of the unloading device 140 comprises a frame structure 161 which can be tilted by means of a drive 160 between an initial position and an actuation position about an axis extending in parallel to the transport direction 4 of the transport bag. The drive 160 is for example a fluid cylinder.
In the depicted embodiment, the frame structure 161 is mounted on a stationary support construction 163 via guide assemblies 162. Each of the guide assemblies 162 comprises a guide track 164 and guide rollers 165, 166 (
As is shown in dashed lines exclusively in
Specifically, the first driver mechanism 141 with the first support frame 143 and the second driver mechanism 142 with the second support frame 1441 is affixed to the frame structure 161 via frame connections 169
Hence, the opening and closing device 139 is tilted together with the frame structure 161, and the transport bag is held essentially fixed also in the unloading position 159 (between the lower guide assembly and the upper guide assembly of the first driver mechanism 141 and, if available, between the lower guide assembly and the upper guide assembly of the second driver mechanism 144, one of the longitudinal struts each).
In
According to this embodiment, the unloading station 104 additionally comprises a locking device 170 for arresting the transport carrier 97 during an unloading operation of the transport bag.
The locking device 170 comprises an arresting element 172, for arresting the transport carrier 97, movable between an ineffective initial position (16a) and an effective actuation position (
The unloading station 104 can further comprise a guide device 175 extending in parallel to the transport direction 4 for laterally guiding the transport carrier 97 during a transport movement of the transport carrier 97 through the overhead conveying device 1 for transporting the transport bag unloading station 104 and for transporting the transport bag out of the unloading station 104. Moreover, the guide device 175 is effective during the unloading operation and when the transport bag is tilted between the provisioning position 158 and unloading position 159 relative to the suspended support 97 and about the tilting axis 157, by means of the transport carrier 97 being fixed against a lateral movement (transversely with respect to the transport direction 4) and/or a lateral movement (transversely with respect to the transport direction 4) being limited.
The method for unloading an article 5 out of a transport bag is described in AT 520 517 A4 (A50320/2018) and is made the subject matter of this disclosure.
Even though the transport bag described above is particularly suitable for automatic loading and automatic unloading, it is equally possible to load the transport bag manually and to unload it manually. Manual loading and automatic unloading or vice versa is also possible.
Finally, it should also be noted that the scope of protection is determined by the claims. However, the description and the drawings are to be adduced for construing the claims. Individual features or feature combinations from the different exemplary embodiments shown and described may represent independent inventive solutions. The object underlying the independent inventive solutions may be gathered from the description.
In particular, it should also be noted that the transport carriers and overhead conveying devices shown may in reality also comprise more or fewer components than those shown. In some cases, the shown transport carriers, and overhead conveying devices and/or their components may not be depicted to scale and/or be enlarged and/or reduced in size.
1 Overhead conveying device
| Number | Date | Country | Kind |
|---|---|---|---|
| A50092/2019 | Feb 2019 | AT | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/AT2020/060037 | 2/7/2020 | WO | 00 |
