[특허]Quick change load wheel assembly

Crown Equipment Corporation

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Quick change load wheel assembly

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B66F-009/06
미국특허분류(USC)	280/081.1; 280/082; 280/043.12; 280/755; 187/232; 187/222; 016/047; 016/029; 016/030; 301/005.1; 301/036.1; 301/125
출원번호	UP-0763487 (2007-06-15)
등록번호	US-7845657 (2011-01-31)
발명자 / 주소	Waltz, Lucas B. Snodgrass, Ryan M. Gilliland, Kevin A. Gasser, Eric P.
출원인 / 주소	Crown Equipment Corporation
대리인 / 주소	Stevens & Showalter LLP
인용정보	피인용 횟수 : 4 인용 특허 : 21

초록
▼

A load wheel assembly for a materials handling vehicle includes first and second spaced side members, at least one rotatable roller extending between the first and second side members and a retainer for holding the roller in the side members. An interface structure provides a substantially rigid connection between the load wheel assembly and a mounting structure on the materials handling vehicle. The load wheel assembly can be moved vertically or horizontally into a mounted position within the outrigger and at least a portion of the interface structure m...

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What is claimed is: 1. A load wheel assembly for a materials handling vehicle comprising: first and second side support members spaced laterally from one another; at least one roller mounted for rotation between said first and second side support members to define at least one load wheel; an axle supporting said at least one roller to said first and second side support members; and interface structure comprising a block member extending laterally between said first and second side support members, said interface structure having at least a portion that engages and mates with mounting structure on a materials handling vehicle to provide a substantially rigid connection between said interface structure and said mounting structure and thereby to said materials handling vehicle; the engagement of said interface structure with said support structure comprising a vertical engagement for horizontally aligning and preventing horizontal shearing movement of said interface structure relative to said mounting structure. 2. The assembly of claim 1, wherein said side support members comprise elongated members having a major longitudinal axis and a minor height axis transverse to said longitudinal axis, and said at least one roller comprises at least first and second rollers that are spaced from each other along said longitudinal axis. 3. The assembly of claim 2, including a pivot aperture formed in each of said side support members generally central of said first and second side support members for receiving a pivot structure extending transversely to said longitudinal and height axes for pivoting movement of said assembly about said pivot structure. 4. The assembly of claim 3, wherein said pivot structure comprises a pivot pin extending transversely between said side members. 5. The assembly of claim 4, wherein said interface structure is supported on said pivot pin for attaching said pivot pin to said mounting structure. 6. The assembly of claim 5, wherein said block member is rigidly attached to said pivot pin, said block member and said mounting structure including assembly attachment apertures for receiving a fastener to secure said block member to said mounting structure. 7. The assembly of claim 6 wherein said fastener comprises a threaded fastener and at least one of said attachment apertures is threaded to receive said threaded fastener therein. 8. The assembly of claim 7, wherein said interface structure and said mounting structure include pins and mating apertures to resist horizontal movement of said interface structure and said mounting structure relative to one another and to assist in alignment of the interface structure and the mounting structure during installation of said load wheel assembly into said materials handling vehicle. 9. The assembly of claim 5, wherein said block member is rigidly attached to said pivot pin, one of said block member and said mounting structure including an assembly attachment aperture and another of said block member and said mounting structure including said fastener so that said fastener is received in said attachment aperture to secure said block member to said mounting structure. 10. The assembly of claim 1, wherein said mounting structure includes an aperture for receiving a fastener, said fastener extending between said block member and said mounting structure for detachably securing said block member to said mounting structure. 11. A materials handling vehicle having a quick change load wheel and comprising: a frame; a mast assembly coupled to said frame; a pair of straddle arms coupled to said frame and extending from a front of said vehicle, each of said straddle arms including mounting structure for receiving a quick change load wheel comprising: a first side support member; a second side support member spaced laterally from said first said support member; interface structure comprising a block member extending laterally between said first and second side support members; at least one roller mounted for rotation between said first and second side support members to define at least one load wheel; and an axle supporting said at least one roller to said first and second side support members; said interface structure has at least a portion that engages and mates with said mounting structure to provide a substantially rigid connection between said interface structure and said mounting structure and thereby to said materials handling vehicle; the engagement of said interface structure with said support structure comprising a vertical engagement for horizontally aligning and preventing horizontal shearing movement of said interface structure relative to said mounting structure. 12. The assembly of claim 11, wherein said mounting structure includes an aperture for receiving a fastener, said fastener extending between said block member and said mounting structure for detachably securing said block member to said mounting structure. 13. A load wheel assembly for a materials handling vehicle comprising: first and second side support members spaced laterally from one another, said side support members comprising elongated members having a major longitudinal axis; first and second rollers, said rollers mounted for rotation between said first and second side support members to define first and second load wheels, said rollers spaced from each other along said longitudinal axis; an axle supporting each of said rollers to said first and second side support members; interface structure comprising a block member and a pivot structure, said interface structure having at least a portion that mates with mounting structure on a materials handling vehicle to provide a substantially rigid connection between said interface structure and said mounting structure and thereby to said materials handling vehicle; said pivot structure including pivot pin ends extending from said block member for engaging respective pivot apertures in said side support members for pivoting movement of said assembly about said pivot structure; and said block member and said mounting structure including assembly attachment apertures for receiving a fastener to secure said block member to said mounting structure.

이 특허에 인용된 특허 (21)

이 특허를 인용한 특허 (4)

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Quick change load wheel assembly

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이 특허에 인용된 특허 (21)

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특허 상세정보

Quick change load wheel assembly

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이 특허에 인용된 특허 (21)

이 특허를 인용한 특허 (4)

IPC 상위 출원인

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IPC 상세정보(version : 201201)

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