Patent Application
20190322455
The invention relates to a segment of a conveying installation, having at least one end side which faces a segment that adjoins the segment, and having mutually parallel ribs which in the conveying direction run on an upper side of the segment.
The invention furthermore relates to a strip for a segment of a conveying installation, having an end side which faces the segment that adjoins the segment, having a rear side and mutually parallel ribs which in the conveying direction run on the upper side of the strip.
The invention moreover relates to a segment for a conveying installation which has at least one such strip, and to a conveying installation which has at least one segment according to the invention.
For reasons of technical safety, conveying installations for transporting people or goods such as, for example, conveying belts consisting of a plurality of segments lined up adjacent to one another, often have a structured surface having mutually parallel ribs on the surface.
However, the rib structure in the case of conveying belts which consist of a plurality of segments arranged behind one another and in which the segments not only run so as to be rectilinear but also along curves having radii of dissimilar sizes harbors a certain risk. Since two segments that are mutually contiguous along the curved end sides pivot in relation to one another when passing a curve, the ribs in the region of the end sides are mutually displaced in a transverse manner. On account of the front lateral edges of the ribs moving transversely in relation to one another during pivoting, considerable shear forces act on an object such as a rock or a finger which is lodged between two neighboring ribs and herein bridges the gap between the segments. In the case of a jammed object, this can lead to damage to the conveying installation and in the case of jammed body parts to severe injuries.
The invention is therefore based on the object of making available a segment, a strip, or a conveying installation, of the generic type mentioned at the outset, by way of which the issues indicated can be avoided as far as possible.
This object is achieved according to the invention by a segment, a strip, a segment having at least one strip, and a conveying installation, which have the features of claim 1, 2, 13, or 15, respectively.
Preferred and advantageous embodiments of the invention are the subject matter of the dependent claims.
It is provided according to the invention that the ribs in an end region of the end side are beveled.
On account of the end regions of the ribs that are beveled according to the invention, the forces which act on objects that are jammed between neighboring ribs have an upwardly directed component, on account of which the objects are squeezed or pushed upward, respectively, out of the region between the ribs, without any damage arising on the conveying installation, or injuries to people or animals being able to occur.
It is provided in the context of the invention that ribs of lateral faces that face neighboring ribs in lateral planes have an upwardly directed cover face in an upper plane, and at least two lateral oblique faces which are disposed in the end region. The oblique faces herein are preferably in each case inclined away from one lateral plane in the direction of the other lateral plane of the same rib and/or away from the end side in the direction of the rib.
It is particularly preferable for ribs to have an end face which is disposed in the region of the end side and is substantially orthogonal to the cover face and to the lateral faces.
In one embodiment according to the invention ribs in the end region have an upper oblique face which is inclined away from the upper plane downward and away from the end side, wherein the upper oblique face is contiguous to the cover face.
In one further embodiment according to the invention the ribs in the end region have a front oblique face which is inclined away from the end side and inclined from the upper plane downward, wherein the front oblique face is contiguous to the end side, optionally to the end face.
It is likewise conceivable in the context of the invention that ribs in the end region have two, or more than two, mutually contiguous lateral oblique faces, and/or further oblique faces which are contiguous to the upper oblique face, and/or further front oblique faces which are contiguous to the front oblique face.
A stepped transition from the end side toward the rib can thus be advantageously achieved.
In one embodiment of the invention, oblique faces can also be curved, wherein a curved oblique face in the context of the invention can be considered to be a multiplicity of more or less small or narrow, respectively, flat oblique faces which are disposed beside one another and are slightly mutually inclined.
Edges and corners of the ribs, in particular in the end region, can be radiused and/or chamfered or beveled, respectively, and edges of the ribs can run so as to be rectilinear and/or curved. This serves for avoiding sharp edges and corners, this further minimizing the risk of injury or damage.
When a virtual sectional plane that runs so as to be orthogonal to a direction of longitudinal extent of the rib and through at least two lateral oblique faces intersects each of the lateral oblique faces along a sectional straight, intersects each of the lateral planes along a lateral straight, and intersects the upper plane along an upper straight, and the upper straight and the sectional straight herein enclose an upper inclination angle, and the lateral straight and the sectional straight enclose a lower inclination angle, each of the inclination angles in one particularly preferred embodiment of the invention is thus larger than 90° and smaller than 180°.
It is particularly advantageous for each inclination angle to be between 105° and 165°, more advantageously between 120° and 150°. Since the sum of the two inclination angles is always 270°, the inclination angles are thus embodied so as to be as obtuse as possible. On account thereof, the oblique face has an inclination by way of which an object lying between the ribs can be particularly advantageously deflected upward, without excessive shear forces acting on said object.
In one preferred embodiment, a segment of a conveying installation, having at least one end side which faces a segment that adjoins the segment, and having mutually parallel ribs which in the conveying direction run on an upper side of the segment, has at least one strip according to the invention, wherein the strip is disposed, preferably so as to be releasable, for example screw-fitted, in the region of at least one end side of the segment.
It is particularly favorable for the strip to run along the upper edge of the end side, or to replace said upper edge, respectively.
In the case of a releasably assembled strip, said strip can be easily exchanged when the latter is damaged or worn, or be replaced with a strip with ribs that are beveled in a dissimilar manner, when required. The strip of such a segment can furthermore be made from another material than the segment, for example from a more cost-effective material and/or a material that has other properties, in particular a softer or harder material.
In one particularly preferred embodiment, the strip is incorporated in the segment in such a manner that the surface of the strip, conjointly with the surface of the segment, forms a plane and the ribs of the strip are precisely lined up with the ribs of the segment.
The end side of the strip preferably terminates so as to be planar with the end side of the segment. However, in one alternative embodiment, the strip can also protrude beyond the end side. On account thereof, a wider gap below the strips is formed between the segments, and small loose objects can drop below the conveying installation, or fall downward from the conveying installation, respectively, when said objects are caught between the strip.
It is particularly preferable for strips to be disposed on both end sides of the segment, as has already been described.
Further details, features, and advantages of the invention are derived from the description hereunder with reference to the appended drawings in which preferred embodiments which do not limit the scope of protection are illustrated. In the drawings:
The strip 2 which, when viewed in the conveying direction 7, is disposed on the front has a convexly curved end side 3 which is directed away from the segment 1, and a concavely curved rear side 10 which is directed toward the segment 1. The strip 2 which, when viewed in the conveying direction 7, is disposed on the rear has a concavely curved end side 4 which is directed away from the segment 1, and a convexly curved rear side 10 which is directed toward the segment 1. The end sides 3, 4 of the strips terminate so as to be planar with the end sides 3, 4 of the segment.
The ribs 6 of the strips 2 in terms of shape, alignment, and position, preferably match exactly the ribs 6 of the segment 1 such that each rib 6 runs so as to be substantially continuous and without a step or shoulder from the front end side 3 to the rear end side 4.
A conveying installation which has a conveyor belt and which substantially consists of a line-up of successive segments 1, wherein the segments 1 are connected to one another and can pass curves having radii of dissimilar sizes is described and illustrated in WO 2012/097390 A1, for example. According to the invention, these segments are embodied as described in the present application.
The segments 1 of the conveying installation can be connected to one another as described in Austrian patent application A 720/2015, for example, and the conveying installation, or the segments 1 of the conveying installation, respectively, can be driven as described in Austrian patent application A 396/2015, for example.
The illustrated rib 6 of the segment 1 according to the invention, or of the strip 2 according to the invention, has an upwardly directed cover face 11 on which people or goods to be transported can stand or lie, respectively, two lateral faces 12 that face the neighboring ribs 6, and optionally an end face 13 on the end side 3, 4.
The rib 6 in the embodiment of
The cover face 11 is disposed in an upper plane 17, and the lateral faces 12 are disposed in lateral planes 18. An end plane 19 is disposed on the end side 3, 4, said end plane 19 lying so as to be orthogonal to the upper plane 17 and, depending on the curvature of the end sides 3, 4, so as to be substantially orthogonal to the lateral planes 18. When an end face 13 is present, said end face 13 lies in the end plane 19. The rib 6 projects from a base plane 21 upward, wherein base faces 22 are disposed between the ribs 6 in the base plane 21.
A lateral upper edge 23 is formed between the cover face 11 and the respective lateral face 12, and a lateral lower edge 24 is formed between the lateral face 12 and the base face 22. A lateral front edge 25 is furthermore formed between the end face 13 and each of the lateral faces 12 in the embodiments of
The lateral oblique faces 14 contact one another in a contact point 26 by way of in each case one corner, or delimit a contact straight 27 by way of in each case one corner, wherein the contact point 26 or the contact straight 27, respectively, is also contacted by a corner or a lateral edge, respectively, of the cover face 11 (
Further modifications, or other combinations, respectively, in terms of the arrangement of the faces mentioned are of course possible in the context of the invention.
A virtual sectional plane 28 lies so as to be orthogonal to the longitudinal extent 29 of the ribs 6, runs through the lateral oblique faces 14, and intersects the latter along in each case one sectional straight 31. The sectional plane 28 furthermore intersects the upper plane 17 or the upper oblique face 15 along an upper straight 32, and intersects the lateral planes 18 along in each case one lateral straight 33.
The rib 6 in the sectional plane 28 has a sectional cross section 34 which for improved visualization is shown in crosshatched manner in
Each of the sectional straights 31 in the virtual sectional plane 28, conjointly with the upper straights 32, encloses an upper inclination angle α and, conjointly with the associated lateral straights 33, encloses a lower inclination angle β. The inclination angles α, β are in each case larger than 90° and smaller than 180°.
The upper plane 17 intersects the end plane 19 along a virtual end straight 35, the contact point 26 being disposed on said virtual end straight 35 so as to be centric between the lateral planes 18. The end face 13 and the cover face 11 taper up to the contact point 26, a corner of the lateral oblique faces 14 also lying in each case in said contact point 26.
In this embodiment, the upper inclination angle α is approx. 140°, and the lower inclination angle β is approx. 130°.
The end face 13 and the cover face 11 taper up to the contact edge 27 which is disposed on the virtual end straight 35 so as to be centric between the lateral planes 18. The lateral oblique faces 14 abut the ends of the contact edge 27 by way of in each case one corner.
Both the upper inclination angle α as well as the lower inclination angle β in this embodiment are approx. 135°.
The cover face 11 terminates at a rear upper edge 36 which lies between the cover face 11 and the upper oblique face 15, wherein the upper oblique face 15 is inclined from the upper plane 17 downward at an upper inclination angle γ.
The end face 13 and the upper oblique face 15 taper up to the contact point 26, one corner of the lateral oblique faces 14 also lying in each case in said contact point 26. The contact point 26 lies on the end plane 19, or the end face 13, respectively, so as to be centric between the lateral planes 18, and is spaced apart from the upper plane 17.
In this embodiment, the upper inclination angle α is approx. 150°, and the lower inclination angle β is approx. 120°.
The virtual end plane 19 intersects the base plane 21 along a base straight 37, and the rib 6 in the end region 8 up to the end plane 19 becomes ever lower toward a front lower edge 38 which lies on the base straight 37.
The upper oblique face 15 tapers from the rear upper edge 36 up to the contact edge 27 and is inclined from the upper plane 17 downward at an upper oblique angle γ. The front oblique face 16 tapers from the front lower edge 38 up to the contact edge 27 and is inclined away from the virtual end plane 19 at a lower oblique angle δ.
The contact edge 27 lies so as to be centric between the lateral planes 18, is spaced apart from the upper plane 17 and from the end plane 19, and lies so as to be parallel with the virtual end straight 35.
In this embodiment, the upper inclination angle α is approx. 140°, and the lower inclination angle β is approx. 130°.
The front end side 3 of the strip 2 depicted on the left in
In one particularly preferred embodiment of the invention, each rib 6 has a half width B of, for example, 4 mm, this corresponding to half the distance between the two lateral planes 18 of a rib 6 and being pre-defined by already existing statutory specifications, for example.
A height Z of the lateral front edges 25 is preferably smaller than 2 mm, and an end height H which corresponds to the rib height minus the height Z is preferably smaller than 1.5 times the half width B, thus preferably smaller than 5 mm, for example.
For production-related reasons, or by virtue of mechanical play in the connection of the neighboring segments, there is gap having a gap width D between the end sides 3, 4 of neighboring strips 2 or segments 1, respectively. The gap width D is preferably as minor as possible, for example 2 mm.
A length L of the end region 8 and thus also of the lateral oblique faces 14 is preferably 2.5 to 5 times the length of the half width B, for example 11 to 16 mm.
The embodiment illustrated in the center of
The embodiments illustrated on the right and the left in
Since the curved oblique faces 14, 15 can also be considered to be a number of lateral and upper oblique faces 14, 15 which are disposed beside one another and embodied so as to be narrow, these embodiments likewise represent a bevel of the end region 8 of a rib 6 in the context of the invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| A51017/2016 | Nov 2016 | AT | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/EP2017/077173 | 10/24/2017 | WO | 00 |
