CONVEYOR WITH JAM PREVENTION DIVERTER WHEELS
20220169454 · 2022-06-02
Inventors
Cpc classification
B65G47/68
PERFORMING OPERATIONS; TRANSPORTING
B65G2047/685
PERFORMING OPERATIONS; TRANSPORTING
B65G47/66
PERFORMING OPERATIONS; TRANSPORTING
International classification
B65G47/68
PERFORMING OPERATIONS; TRANSPORTING
Abstract
Roller conveyors can only safely convey articles up to a certain width to downstream conveyors without jamming The present invention utilizes at least one and preferably a plurality of jam prevention diverter wheels disposed at a selected angle between adjacent rollers of a conveyor with a portion of the diverter wheels extending above the surface of the conveyor rollers to contact items and limit the width of items that can pass through without jamming the conveyor. The diverter wheels are rotated with power mechanically derived from the main powered conveyor rollers. A portion of diverter wheels extend above the skewed roller conveyor surface a selected distance and at a selected angle to contact conveyed articles and only allow items up to a certain size to pass diverting wide items or misaligned items having a width wider than desired for passing through to a downstream conveyor. Jam prevention is the point. If an item width exceeds a given threshold width the diverter wheels come into contact with the term and engage the item pulling the item away from the conveyor stream.
Claims
1-10. (canceled)
11. A conveyor diverter wheel jam prevention assembly, comprising: a roller conveyor comprising a plurality of powered skewed rollers mounted at an angle with respect to a longitudinal axis of said roller conveyor moving items in a forward and lateral direction; a vertical sidewall extending along a lateral edge of said roller conveyor; a frame for supporting said conveyor rollers; a plurality of diverter wheel assemblies affixed to said frame supporting said conveyor rollers; each one of said plurality of diverter wheels is disposed between adjacent spaced apart conveyer rollers; each one of said plurality of diverter wheels is in frictional contact with and driven by an adjacent conveyor roller; means for biasing a surface of said diverter wheel against a surface of said conveyor roller for rotating said diverter wheel whenever said roller conveyor is in operation; said plurality of diverter wheels are oriented relative to said roller conveyor longitudinal axis with said diverter wheel axles generally perpendicularly aligned to a path of movement of an article on a conveying surface thereof and having an uppermost portion of each of said diverter wheels positioned extending above said conveying surface of said conveyor rollers; said roller conveyor including a glide plate removably attachable to said frame disposed between said spaced apart conveyor rollers, said glide plate including an opening for said uppermost portion of said diverter wheels to extend above the surface of said glide plate and said conveyor rollers; said plurality of diverter wheel assemblies spaced apart from said vertical sidewall a selected distance limiting the width of an article passing through between said vertical wall and said diverter wheel; said diverter wheels affixed at an effective angle and an effective height whereby said portion of said diverter wheels extending above the conveying surface of said roller conveyor contacting said articles conveyed by said roller conveyor pulls said article away diverting said article from said roller conveyor.
12. The conveyor diverter wheel jam prevention assembly of claim 11, wherein a row of said diverter wheels spaced apart are oriented downstream from one another in a row.
13. The conveyor diverter wheel jam prevention assembly of claim 11, wherein said glide plate is attachable to said frame and substituted for a conveyor roller.
14. The conveyor diverter wheel jam prevention assembly of claim 11, including an adapter mountable to a frame and tension spring biasing an edge of said diverter wheel against an adjacent conveyor roller.
15. The conveyor diverter wheel jam prevention assembly of claim 11, wherein said diverter wheel assembly and glide plate are substituted for a conventional conveyor roller each one having a conveyor frame attachment bracket removably attachable to a conventional conveyor frame roller attachment bracket.
16. The conveyor diverter wheel jam prevention assembly of claim 11, wherein said diverter wheel assembly includes a diverter wheel deflector attached to a base plate mounted to a side of a transverse axle supporting said diverter wheel, said diverter wheel deflector lifting a front end portion of said article up and on to said diverter wheel and over said conveyor roller conveying surface reducing friction and facilitating lateral movement of said article coming into contact with a high friction surface of said diverter wheel.
17. The conveyor diverter wheel jam prevention assembly of claim 11, wherein said plurality of diverter wheels include an outer surface comprising a high friction surface for contacting said conveyor roller.
18. The conveyor diverter wheel jam prevention assembly of claim 17, wherein said high friction surface is selected from the group of high friction imparting materials consisting of a solid rubber, an elastomer, or a polymer, a composite material, a polyblend compound comprising plastic and rubber, a vinyl material, a polyethylene material, a meal wheel rim holding a polymeric outer wheel, a solid polymeric wheel, a polymer coating, and a composite material.
19. The conveyor diverter wheel jam prevention assembly of claim 11, wherein said plurality of said diverter wheels extends above said conveying surface a distance of up to ¾ of an inch.
20. The conveyor diverter wheel jam prevention assembly of claim 11, wherein said at least one diverter wheel is disposed at an angle of from 30 to 90 degrees with respect to said adjacent conveyor roller.
21. The conveyor diverter wheel jam prevention assembly of claim 11, wherein said at least one diverter wheel is disposed at an angle of about to 45 degrees with respect to said conveyor roller.
22. The conveyor diverter wheel jam prevention assembly of claim 11, wherein said plurality of skewed conveyor rollers have a low friction conveying surface for moving items in a forward and lateral direction.
23. The conveyor diverter wheel jam prevention assembly of claim 11, further comprising: means for mounting a spindle assembly to a frame of said roller conveyor for supporting said conveyor diverter wheel; said spindle assembly including a transverse axle for rotation of a diverter wheel thereon; said diverter wheel having a high friction surface mounting on a hub having a bearing for rotating on said transverse axle.
24. The diverter wheel jam prevention assembly for a roller conveyor of claim 11, wherein said means for biasing said surface of said diverter wheel against a surface of said conveyor roller comprises a tension spring mounting on said spindle assembly.
25. A roller conveyor and diverter wheel jam prevention assembly, comprising: a roller conveyor including a plurality of powered skewed rollers having a low friction conveying surface mounting on a frame and conveying articles forward and laterally, said skewed rollers mounted at an angle with respect to a longitudinal axis of said roller conveyor; said conveyor including a plurality of diverter wheel assemblies mounting in a row on said frame at a selected location of said roller conveyor between rollers, each one of said diverter wheel assemblies having a diverter wheel preventing an article exceeding a selected width from passing between a selected conveyor side edge and said diverter wheel; said diverter wheel assembly comprising: a) a diverter wheel; b) said diverter wheel disposed on an axle of a spindle and having a high friction surface for engaging said conveyor roller and an article conveyed on said roller conveyor and conveying momentum to said article; c) drive means for rotating a plurality of said conveyor rollers synchronously and said diverter wheel in cooperative frictional engagement with said conveyor roller; d) a spindle assembly including said spindle for mounting said diverter wheel on said frame; e) said diverter wheels including a tension spring means mounting on said spindle assembly for biasing a surface of said diverter wheels against a surface of said conveyor roller for rotating said diverter wheels whenever said roller conveyor is in operation; f) means for mounting said spindle assembly to said roller conveyor frame for supporting said diverter wheel; g) said plurality of diverter wheels are oriented relative to said roller conveyor longitudinal axis with said diverter wheel axles generally perpendicularly aligned to a path of movement of an article on a conveying surface thereof and having an uppermost portion of each of said diverter wheels positioned extending above said conveying surface of said roller conveyor; and h) a glide plate substituting for a conveyor roller, said glide plate attaching to said frame, said glider plate including an opening therein for a portion of said diverter wheel to extend therethrough at a height above said conveyor roller whereby said diverter wheels engage said articles.
26. The diverter wheel jam prevention assembly of claim 25, further comprising a vertical sidewall extending along an edge of said selected conveyor side edge.
27. A conveyor diverter wheel jam prevention assembly, comprising: a roller conveyor comprising a plurality of powered conveyor rollers mounted at a selected angle with respect to a longitudinal axis of said roller conveyor moving items in a forward and lateral direction; a frame for supporting said conveyor rolls; a plurality of diverter wheel assemblies affixed to said frame supporting said powered conveyor rollers, each of said diverter wheel assemblies including a diverter wheel; at least one diverter wheel is disposed between selected adjacent spaced apart powered conveyer rollers at selected locations in a gap between said adjacent spaced apart powered conveyor rollers creating a restricted area in said roller conveyor and diverting articles exceeding a selected size or orientation from passing through said roller conveyor to a downstream conveyor; each diverter wheel is in frictional contact with and driven by an adjacent powered conveyor roller; each one of said diverter wheel assemblies including means for biasing a surface of said diverter wheel against a surface of said powered conveyor roller for rotating said diverter wheel whenever said roller conveyor is in operation; each diverter wheel is oriented relative to said a longitudinal axis of said roller conveyor and having a diverter wheel axle generally perpendicularly aligned with respect to a path of movement of an article on a conveying surface thereof and having an uppermost portion of said diverter wheel positioned extending above a conveying surface of said powered conveyor rollers; said plurality of diverter wheel assemblies spaced apart from said restricted area a selected distance limiting the width of an article passing through between said restricted area and said diverter wheel; and said diverter wheel affixed at an effective angle and an effective height whereby said uppermost portion of said diverter wheel extending above the conveying surface of said roller conveyor contacting said articles conveyed by said roller conveyor pulls said article away diverting said article from said roller conveyor.
28. The conveyor diverter wheel assembly of claim 27, said roller conveyor including a vertical sidewall extending along a lateral edge of said roller conveyor and said plurality of diverter wheel assemblies are spaced apart from said vertical sidewall a selected distance defining said restricted area limiting the width of an article passing through between said vertical wall and said diverter wheel.
29. The conveyor diverter wheel assembly of claim 27, wherein a row of said diverter wheels are spaced apart and oriented downstream from one another in a row.
30. The conveyor diverter wheel assembly of claim 27 including an adapter mountable to a frame and tension spring biasing an edge of said diverter wheel against an adjacent conveyor roller.
31. The conveyor diverter wheel assembly of claim 27, wherein said diverter wheel assembly and glide plate are substituted for a conventional conveyor roll each one having a conveyor frame attachment bracket removably attachable to a conventional conveyor frame roller attachment bracket.
32. The conveyor diverter wheel assembly of claim 27, wherein said diverter wheel assembly includes a diverter wheel deflector attached to a base plate mounted to a side of a transverse axle supporting said diverter wheel, said diverter wheel deflector lifting a front end portion of said article up and on to said diverter wheel and over said conveyor roll conveying surface reducing friction and facilitating lateral movement of said article coming into contact with a high friction surface of said diverter wheel.
33. The conveyor diverter wheel assembly of claim 27, wherein said plurality of diverter wheels include an outer surface comprising a high friction surface for contacting said conveyor roller.
34. The conveyor diverter wheel assembly of claim 33, wherein said high friction surface is selected from the group of high friction imparting materials consisting of a solid rubber, an elastomer, or a polymer, a composite material, a polyblend compound comprising plastic and rubber, a vinyl material, a polyethylene material, a meal wheel rim holding a polymeric outer wheel, a solid polymeric wheel, a polymer coating, and a composite material.
35. The conveyor diverter wheel assembly of claim 27, wherein said plurality of said diverter wheels extends above said conveying surface a distance up to ¾ of an inch.
36. The conveyor diverter wheel assembly of claim 27, wherein said at least one diverter wheel is disposed at a selected angle of up to 90 degrees with respect to said longitudinal axis of said roller conveyor.
37. The conveyor diverter wheel assembly of claim 27, wherein said at least one diverter wheel is disposed at an angle with respect to a longitudinal axis of said roller conveyor selected from the group consisting of 30 degrees, 45 degrees, 60 degrees, and 90 degrees.
38. The diverter wheel assembly of claim 27, wherein said plurality of powered rollers are powered skewed rollers. mounted at an angle with respect to a longitudinal axis of said roller conveyor moving items in a forward and lateral direction.
39. The conveyor diverter wheel assembly of claim 27 said roller conveyor further comprising a plurality of glide plates removably attachable to said frame disposed between said spaced apart powered conveyor rolls, said plurality of glide plates including an opening for said uppermost portion of said diverter wheel to extend above the surface of said glide plate and said powered conveyor roller.
40. The conveyor and diverter wheel assembly of claim 39, wherein said glide plate is attachable to said frame and substituted for a conveyor roll.
41. The conveyor and diverter wheel assembly of claim 39, wherein said surface of said glide plate is selected from the group consisting of a hard plastic, a soft plastic, a fabric coated material, a copolymer having a surface of a particular texture, hardness, and friction coefficient, a polyurethane coating, paint coating, metallic coating, ceramic material, a silicone coating, a TEFLON coating, a tape, an aluminum, a stainless steel, a chrome steel, and combinations thereof.
42. The conveyor and diverter wheel assembly of claim 39, wherein said surface of said glide plate is selected from the group consisting a solid material, a material including pores, a material including cross-hatching, a material including irregularities, a material including dimples, a material including webbing, a material including apertures therethrough and combinations thereof.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0031] A better understanding of the present invention will be had upon reference to the following description in conjunction with the accompanying drawings in which like numerals refer to like parts throughout the several views and wherein:
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DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0054] For the purposes of promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings and specific language will be used to described the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended, such alterations and further modifications in the illustrated device, and such further applications fo the principles of the invention as illustrated therein being contemplated as would normally occur to one skilled in the art to which the invention relates.
[0055] The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms “a,” “an,” and “the” may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms “comprises,” “comprising,” “including,” and “having,” are inclusive and therefore specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed or illustrated, unless specifically identified as an order of performance. It is also to be understood that additional or alternative steps may be employed.
[0056] When an element or layer is referred to as being “on,” “engaged to,” “connected to,” or “coupled to” another element or layer, it may be directly on, engaged, connected or coupled to the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being “directly on,” “directly engaged to,” “directly connected to,” or “directly coupled to” another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a like fashion (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items.
[0057] Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as “first,” “second,” and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
[0058] Spatially relative terms, such as “inner,” “outer,” “beneath,” “below,” “lower,” “above,” “upper,” and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “below” or “beneath” other elements or features would then be oriented “above” the other elements or features. Thus, the example term “below” can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
[0059] As used herein, the term “about” can be reasonably appreciated by a person skilled in the art to denote somewhat above or somewhat below the stated numerical value, to within a range of ±10%.
[0060] The information included in this section, data or specifications, including any references cited herein and any description or discussion thereof, is included for exemplary purpose only and is not to be regarded as subject matter by which the scope of the invention as defined in the claims appended hereto is to be bound.
[0061] The following text sets forth a broad description of numerous different embodiments of present disclosure. The description is to be constructed as exemplary only and dose not describes every possible embodiment since describing every possible embodiment would be impractical if not impossible. It will be understood that any feature, characteristic, component, composition, ingredient, product, step or methodology described herein can be deleted, combined with or substituted for, in whole or part, any other feature, characteristic, composition, ingredient, product, step or methodology described herein. Numerous alternative embodiments could be implemented, using either current technology or technology developed after the disclosure date of the invention.
[0062] The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like numbers refer to like elements throughout.
[0063] As shown in
[0064] The present invention as depicted in
[0065] Conventional powered skewed conveyor rollers 12 are supported by left and right longitudinal frame members 16. A plurality of conveyor angle brackets 18 are attached to the inner wall 20 of each longitudinal frame member 16 in spaced apart alignment with opposing angle brackets 18 affixed to the opposing frame member 16. The angle brackets 18 may be mounted flat adjacent the surface of the wall 20 of the frame member 16, or juxtaposed whereby a portion of the angle bracket 18 extends at a selected angle defining a tab 22 having a aperture 24 therein for holding a bolt 26 or hinge pin to cooperatively engage a holding means such as a nut 28 securing a support clip 90 on the distal end of a conveyor roller 12 thereto.
[0066] The glide plate assembly 10 comprises or consists of a longitudinal lateral cross member 30 which extends a selected length between the left and right longitudinal frame members 16. The lateral cross member is formed typically by extrusion and comprises a generally “U-shaped” cross sectional area having a bottom base 36 with opposing side walls 33, 35 extending upward and having an open top. The upper edges 59 of the upper portion of the side walls 33, 35 curve inward forming a flange or lip 60 extending inwardly and downward along the edge of the lateral cross member 30. More particularly, the curved inwardly extending lips 60 can terminate at selected intervals along the length of the lateral cross member 30 and still provide a holding means for securing a glide plate 34 covering the lateral cross member 30 and cooperatively engaging a support clip 90 removably attaching to each end for attaching the lateral cross member 30 to the conveyor frame brackets 18.
[0067] As shown in
[0068] As shown best in
[0069] The glide plate 34 includes a substantially rigid medial main body portion 42 which includes an upper surface 44 spanning between the outer surfaces of adjacent conveyor rollers with a length along the longitudinal axis greater than the gap between the adjacent conveyor rollers to substantially close the gap between the alternating conveyor rollers.
[0070] The spaced apart opposing legs or prongs 46 extending perpendicular from a lower surface 48 of the glide plate 34 main body 42 include outwardly an extending shoulder 50 for cooperative engagement with the inwardly projecting distal edges defining lips 60 of the lateral cross member side walls. 33, 35. The shoulder is formed on the outer surface of the prong 46 at a selected position spaced a selected distance from the lower surface. The shoulders 50 may comprise an outwardly angled portion 52 or a thicker region of the prong 46. The prongs 46 cooperatively engage the inwardly turned edge or lip 60 along the top inner edge of the lateral cross member member 30. The prongs 46 can be comprised of a flexible resilient material with sufficient elasticity and memory to snap or lock into a friction fit position cooperatively engaging the lip 60 or the glide plate 34 may be flexible enough to permit sufficient flexing at the center portion to enable the prongs 46 to be flexed and locked into position cooperatively engaging the lips 60 of the lateral cross member 30.
[0071] The glide plate 34 comprises a substantially rigid body with an upper surface 42 spanning between the outer surfaces of adjacent load conveyor rollers and has a length along the longitudinal axis of the conveyor that is slightly less than the gap between the adjacent conveyor rollers to substantially close the gap between the adjacent conveyor rollers. The glide plate 34 includes a front tab or flap 62 and rear projecting tab or flap 64 which extend to the adjacent conveyor rollers generally aligning the upper surface of the glide plate with the upper surface of the adjacent load rollers or slightly below the upper surface of the adjacent rollers. The terminal front end 66 of the front tab and terminal rear end 68 of the rear tab are formed to be positioned at a selected level with respect to the adjacent conveyor in accordance with the type of material to be conveyed whether it be aggregate material in bags, boxes and parcels, or consumer goods or merchandise.
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[0073] The front tab 62 and rear tab 64 extending from the main body 42 which are straight or angle upward or downward depending upon the required flexibility of the glide plate main body member 34; however, the front tab 62 could be angled instead of curved to provide the requisite flexibility and support and be of a longer or shorter length depending upon the requirement determined by the types of articles conveyed there over.
[0074] The glide plate member 34 and lateral cross member 30 shown in
[0075] As shown in
Diverter Wheel Assembly
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[0077] As shown in
[0078] The diverter wheel spindle assembly 210 includes a spindle shaft 206 removably affixed to the plate 204 and held in position by a bushing 207 or other holding member and is affixed to the cross member 30 disposed in a gap between adjacent conveyor rollers. A tension spring 208 is axially mounted onto the spindle shaft 206 below the plate and a transverse axle 210 extends from the top portion of the spindle shaft 206 for removably mounting a diverter wheel 212. It is contemplated that other spring means or actuators or rubber mounts or other means of biasing the edge of the diverter wheel against a powered conveyor roller may be used in the instant invention.
[0079] The conveyor diverter wheel assembly of extends above said conveying surface a distance of up to one inch and more preferably about one half inch. The conveyor diverter wheel assembly is disposed at an angle of up to 90 degrees, more preferably at an angle of from 30 to 60 degrees, and more preferably at an angle of about to 45 degrees.
[0080] The outer wheel surface contacting the conveyor roller of a wheel using a rim or of a wheel formed from a single compound or material comprises a high friction surface and may composed of a solid rubber, elastomer, or polymer or composite material, or plastic or metal wheel coated with a high friction material or a rubber, a polymer, or composite material disposed on a rotating hub 216 rotating and connecting to the transverse axle 210. The conveyor diverter wheel is selected from the group of high friction imparting materials consisting of a solid rubber, an elastomer, or a polymer, a composite material, a polyblend compound comprising plastic and rubber, a vinyl material, a polyethylene material, a meal wheel rim holding a polymeric outer wheel, a solid polymeric wheel , a metal wheel coated with a polymer, and a composite material.
[0081] An opening 214 is formed in the frame member 16 and glide plate to provide suitable clearance for the diverter wheel spindle assembly 210. The selected section of the glide plate 34 is removed to provide contact with the packages or articles conveyed thereover. The longitudinal lateral cross member 30 is shown in alignment with the diverter wheel assembly spindle 210 positioned between adjacent conveyor rollers so that the diverter wheel 212 and deflector 220 have a portion extending above the conveyor rollers for contacting packages. A corner edge 224 of the diverter wheel 212 makes frictional contact with the surface 226 of the powered conveyor roller 12 biasing and rotating the diverter wheel 212.
[0082] The foregoing detailed description is given primarily for clearness of understanding and no unnecessary limitations are to be understood therefrom, for modification will become obvious to those skilled in the art upon reading this disclosure and may be made upon departing from the spirit of the invention and scope of the appended claims. Accordingly, this invention is not intended to be limited by the specific exemplifications presented herein above. Rather, what is intended to be covered is within the spirit and scope of the appended claims.