Swiss Patent Application 01386/2015, filed 24, Sep. 2015, Swiss, the priority document corresponding to this invention, to which a foreign priority benefit is claimed under Title 35, United States Code, Section 119, and their entire teachings are incorporated, by reference, into this specification.
Field of the Invention
The present invention relates to the field of transport technology, and pertains to a transport bag according to the preamble of claim 1, as well as a transport device comprising said transport bag.
Discussion of Related Art
In automated warehouses, expansive production facilities, and more generally in the transport of goods, it is necessary for conveyed items or goods to be accommodated in suitable conveyed item containers—in particular, transport bags, which must then be transported, for example, via a suspended conveyor device to the destination therefor and unloaded there. For this purpose, diverse conveyed item containers or transport bags and associated suspended conveyor devices or transport devices have previously been developed and designed.
DE 10 2012 212 518 A1 discloses a conveyed item container for transporting conveyed items in a suspended conveyance device, wherein the conveyed item container is configured as a suspended bag having two side wall elements that delimit a conveyed item receiving region therebetween, are connected to one another via a flap hinge assembly and can be folded about a folding axis in order to open and close the suspended bag, and having a suspension means for suspending from a suspended conveyor device, characterized in that at least one first one of the two side wall elements has a frame and a conveyed item position-fixing element which is held by the frame and is intended and adapted in order to exert on the conveyed item a force counteracting a slipping of the conveyed item from the position thereof in the suspended bag or/and form a multi-sided barrier counteracting a slipping of the conveyed item from the position thereof in the suspended bag, with a suspended bag that is closed and loaded with a conveyed item.
Document DE 10 2011 101 987 A1 describes a transport bag for conveying a conveyed item in a conveyance system, in particular, a suspended conveyance system, with a support part that is configured for accommodation on a conveyance line of the conveyance system, with an auxiliary loading means, wherein the auxiliary loading means has a closure flap having a handling tab comprising a clamping section, wherein the support part has a clamping device comprising a clamping lever that can be displaced between a holding position, in which a holding force acts on the clamping section, and a release position, and wherein the clamping lever is coupled to the clamping section in the holding position in such a manner that the weight of the accommodated conveyed item increases the holding force.
Document DE 10 2004 018 569 A1 discloses a collecting device for accommodating objects, in particular, articles of clothing, in sorted collection of objects, characterized by a collection hag having essentially one frame structure provided with a take-up element that can be integrated into a conveyance device, and a bag pouch suspended from the frame structure, wherein the take-up element and the frame structure are pivotable relative to one another about an axis lying transverse to the direction of conveyance, and wherein the bag pouch is opened when the frame structure is arranged horizontally and the bag pouch is folded together and essentially closed when the frame structure is arranged vertically.
Document DE 20 2012 012 331 U1 discloses a conveyed item container for transporting a conveyed good in a suspended conveyance device, wherein the conveyed item container is configured as a suspended bag having a conveyed good accommodation region delimited on one side by a side wall element and having a suspension means for suspension from a suspended conveyance device, wherein the suspension means is fastened to the side wall element so as to be pivotable about a pivoting device defining a pivot axis, characterized in that the conveyed item accommodation region is delimited on another side by a conveyed item fixation element, wherein the conveyed item position fixation element is connected to the suspension means in such a manner that when the suspension means is pivoted relative to the side wall element from a transport position into an opening position, the conveyed item position fixation element can be removed from the side wall element so as to open the conveyed item accommodation region.
Document U.S. Pat. No. 8,490,774 B2 discloses a loading station for transport bags transported in an overhead conveyor system, which loading system comprises an upper supply rail for the transport bags, a vertical conveyor which adjoins the supply rail for moving the transport bags into a lower loading position, a device for opening the transport bags in the loading position, and a lower discharge rail which adjoins the vertical conveyor for discharging the transport bags from the loading position.
Document EP 2 708 478 A1 describes a carrier bag for a suspended conveyor device for the hanging transport of objects, comprising a holding frame, a bag pouch which hangs from the holding frame and by which objects to be transported can be received, and a suspension member which is connected to the holding frame and by means of which the carrier bag can be suspended from the suspended conveyor device, so as to be transported by the suspended conveyor device in a suspended way, characterized in that the bag pouch comprises a first and second pouch portions each comprising a first pouch end portion connected to the holding frame and a second pouch end portion turned away from the holding frame, wherein the second pouch end portions are connected to each other by a hinge mechanism which can be brought into an unloading position in which the second pouch end portions are arranged at a distance from each other, so that the bag pouch is provided with an outlet opening formed between the second pouch end portions for emitting objects, and which can be brought into a loading position in which the second pouch end portions arc arranged adjacent to each other, so that the outlet opening is closed and the bag pouch can receive objects.
Usually, the previously proposed transport bags are designed either so as to be rigid and permanently open, or so as to close automatically as soon as the transport bags are filled or aligned with the force of gravity.
As a consequence thereof, the transport bags either are not compressed in a space-saving manner when not in use, or must be kept open with considerable effort when loaded and unloaded.
The present invention therefore addresses the problem of providing a transport bag that automatically transitions into and remains in the open state, but, at the same time, can be folded together so as to save space when not in use.
The present invention also addresses the problem of providing a transport device comprising said bag.
The problems are solved by the features of claims 1 and 17.
The transport bag according to the invention for transporting and/or storing articles comprises a front wall and a back wall that are flexibly connected to one another via a bottom section so as to be movable back and forth between a first configuration in which the front wall and back wall form an upwardly open bag that can be filled from above, and a second configuration in which the front wall and back wall lie closely alongside one another and form a bag that is folded together, wherein the back wall is extended upward above and beyond the height of the front wall with a support section for fastening the transport bag to a transport device.
The transport bag is characterized in that an opening and opening means are provided that automatically bring the transport bag into the first configuration and keep the transport bag there, and that allow a deliberate shift from the first configuration into the second configuration.
According to one embodiment of the present invention, the opening means comprise an opening bracket that connects the back wall and the front wall to one another and is mounted so as to be pivotable on the back wall and on the front wall respectively in such a manner as to be pivoted, originating from the second configuration, from an inclined second position into a less inclined first position due to the intrinsic weight thereof, thereby bringing the transport bag into the first configuration and keeping the transport bag there.
The opening bracket may then be guided outward around the transport bag and mounted onto the outside of the back wall and outside of the front wall, respectively, so as to be pivotable in a transverse tunnel loop.
The opening bracket may be configured as a rectangular, dimensionally stable metal bracket. The metal bracket must then be sufficiently hard to fulfill the automatic opening function through the intrinsic weight, due to the force of gravity. The dimensional stability of the opening bracket ensures that the front and back walls of the transport bag are not displaced laterally relative to one another, but rather can only be moved onto one another or away from one another.
A round cross-section of the metal bracket may advantageously enhance the mobility of the opening bracket in the tunnel loops.
The opening bracket may be mounted so as to be vertically mobile in the tunnel loops. The movement of the bracket can then be more readily adapted to different states of fullness of the transport bag.
In particular, one of the tunnel loops may be configured so as to be foldable about a horizontal axis, in order to allow additional freedom of movement for the opening bracket.
According to another embodiment of the present invention, the transport hag is closed laterally by side walls, and has a bottom as the bottom section.
According to another embodiment of the present invention, the transport bag maybe opened downward, wherein means for closing this opening are provided.
According to another embodiment of the present invention, the transport bag is closed laterally by side walls, and has a bottom as the bottom section, wherein the bottom of the transport bag is configured so as to be hinged downward, and wherein one or more closure tabs with which the bottom can be fixed in the closed state is/are provided. In particular, the bottom may be pivotably articulated at the lower edge of the front side. The closure tabs, which may advantageously be configured as a hook-and-loop fastener, are attached, in particular, to the free longitudinal edge of the bottom and are folded against the back wall in order to close from the outside. The closure tabs may, however, also be attached to the lower edge of the back wall, and are then folded against the bottom in order to close from below.
Alternatively thereto, however, the transport bag may also be formed of a laterally open loop that forms a bottom section in the lower region.
Herein, retaining straps may be provided on opposite sides in the region above the opening bracket, the retaining straps connecting the front and back walls of the loop and delimiting the pivoting movement of the opening bracket.
According to another embodiment of the present invention, the transport bag has a protective, in particular, shock-absorbing, cover layer on the front wall and/or on the back wall. This protects articles transported in the bag against shocks if there are collisions between a plurality of transport bags in a railbound transport device. The cover layers may additionally also have an insulating effect.
According to another embodiment of the present invention, the transport bag is fitted with an information carrier that can be read from the exterior. This may be, for example, an optically readable information carrier such as a label having a barcode or QR code, or an information carrier that can be wirelessly, electronically read out, such as an MID. If the carrier can be read in and read out, then information about the transported bag contents can be stored thereon.
According to yet another embodiment of the present invention, the support section of the transport bag is provided with at least one fastening opening. The fastening opening may be used to suspend or bolt the transport bag, either stationarily or removably on a transport device (a carriage).
Two grommets that are at the same height and are spaced apart from one another may be provided as fastening openings. If the bag is fastened with the aid of the two grommets, the bag will also remain positionally stable in a transport device.
According to yet another embodiment of the present invention, the transport bag is made out of a flexible, in particular, fabric-reinforced, material. One example for this is an externally smooth, plastic-coated fabric, such as is used in different thicknesses, for example, for truck tarpaulins. However, it is also possible to use an uncoated fabric, a mesh, or a film as the bag material.
The transport device according to the present invention having one or more transport bags according to the present invention is characterized in that the transport bag(s) can be moved along a transport path while suspended with the support section on a carriage in a running rail or on a transport chain.
According to one embodiment of the transport device according to the present invention, the transport bag(s) is (are each) fastened to the carriage or to the transport chain at least two points that are spaced apart horizontally from one another.
The transport bag may then be removably fastened at the at least two points that are horizontally spaced apart from one another via a fastening device on the carriage or on the transport chain.
The present invention shall be described in greater detail below through embodiments, in connection with the accompanying drawings.
Above an accommodation space thereof in the extension of a back wall, a transport bag 15 according to an embodiment of the present invention has a support section 15a in which two openings (grommets 18a, 18b in
Should the transport bag 15 be removably suspended from, instead of fixedly bolted to, the carriage 12, then the transport device 10.1 in
The function of the opening bracket 16 on the transport bag 15 is visible, in particular, in
As can be seen in
In
The opening bracket 16 is then pivoted, for example, from a sharply inclined second position depicted in FIG. (3a) into a less inclined first position. The opening bracket may be moved from this first position back into the second position when a force is applied to the front side 21b of the transport bag 15 in accordance with the arrows marked in
In
If, now, the front wall 21b is displaced by external pressure (arrows) in a parallel manner relative to the back wall 21a, in accordance with
The opening bracket 16 and the mounting thereof on the front and back walls make it thus possible for the transport bag 15 to open automatically, if no other external forces are acting, so that the transport bag 15 can be filled or emptied in a particularly easy manner.
If the (plurality of) transport bags 15 of a transport device are not needed, then the transport bags can be stored or kept available in a space-saving manner by simply being pushed together into a (horizontal) stack of bags 22, in accordance with
In the simplest case, an independent bottom and independent side walls can be omitted in the transport bag. This is the case in the embodiment in
When a plurality of (filled) transport bags of the type depicted in
It would also be possible to make it possible to identify each transport bag itself and/or the respective contents thereof For this purpose, the transport bag 15.2 or 15.3 may be equipped with an externally readable information carrier 26 or 27, in accordance with
In accordance with
Finally, it would also be possible to suspend a single transport bag 15 (with or without filling) on the wall hooks 30 of a wall 29, in accordance with
Number | Date | Country | Kind |
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01386/2015 | Sep 2015 | CH | national |