[특허]Locking roller for an article of furniture

Kruegar International, Inc.

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특허 상세정보

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Locking roller for an article of furniture

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60B-033/00
미국특허분류(USC)	016/035.R; 016/044; 280/086.751
출원번호	US-0866573 (2004-06-12)
발명자 / 주소	Griepentrog,Dennis G.
출원인 / 주소	Kruegar International, Inc.
대리인 / 주소	Boyle, Fredrickson, Newholm, Stein &
인용정보	피인용 횟수 : 5 인용 특허 : 15

초록
▼

A locking roller assembly includes a housing adapted for mounting to an article of furniture. A wheel is rotatably mounted to the housing via a mounting arrangement that accommodates relative vertical movement between the wheel and the housing. The wheel is mounted to an axle, which in turn is secured to an axle carrier. A biasing member, such as a spring, is engaged between the housing and the axle carrier to bias the housing toward a raised position. When a load is applied to the article of furniture, the spring is compressed so as to allow the housing to move vertically downward toward the wheel. The housing includes an engagement surface that engages the wheel when the load is applied and the housing is moved downwardly, to prevent rotation of the wheel and to thereby prevent movement of the article of furniture.

대표
청구항
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I claim: 1. A locking roller assembly for an article of furniture, comprising: a housing defining an interior; a wheel located in the interior of the housing, wherein the wheel is rotatably mounted to an axle that extends along a longitudinal axis; an axle guide arrangement associated with the housing for guiding vertical movement of the housing relative to the axle between a lowered position and a raised position; a biasing arrangement interconnected with the axle for biasing the housing toward the raised position; a wheel engagement area within the housing interior; and a wheel engagement surface movable with the housing, wherein the wheel engagement surface is configured to engage the wheel when the housing is moved to the lowered position, and wherein the wheel engagement surface is further configured to move the wheel laterally along the longitudinal axis of the axle into engagement with the wheel engagement area when the wheel engagement surface engages the wheel to inhibit rotation of the wheel. 2. The locking roller assembly of claim 1, wherein the wheel engagement surface comprises a laterally facing angled surface that engages an outer surface defined by the wheel when the housing is moved to the lowered position, wherein the wheel engagement surface is spaced above the outer surface of the wheel when the housing is in the raised position. 3. The locking roller assembly of claim 2, wherein the wheel engagement area comprises a wall spaced from the wheel engagement surface, and wherein the axle guide arrangement includes a generally vertical inner slot formed in the wall, in combination with an outer slot associated with the housing, wherein an inner end portion of the axle is received within the inner slot and an outer end portion of the axle is received within the outer slot. 4. The locking roller assembly of claim 3, wherein the outer slot is formed in an end wall defined by the housing, wherein the end wall is located vertically below the wheel engagement surface. 5. The locking roller assembly of claim 4, wherein the inner end portion of the axle is mounted to an axle carrier, wherein the housing is movable upwardly and downwardly relative to the axle carrier when the housing is moved between the raised and lowered positions, respectively. 6. The locking roller assembly of claim 5, wherein the biasing arrangement comprises a spring that bears between the axle carrier and a facing spring engagement surface defined by the housing for biasing the housing toward the raised position. 7. The locking roller assembly of claim 6, wherein the axle carrier includes an upwardly extending projection that is engaged with a lower end defined by the spring, for maintaining the spring in engagement with the axle carrier. 8. A locking roller assembly for an article of furniture, comprising: a housing defining an interior; a wheel located in the interior of the housing, wherein the wheel is rotatably mounted to an axle; an axle guide arrangement associated with the housing for guiding vertical movement of the housing relative to the axle between a lowered position and a raised position; a biasing arrangement interconnected with the axle for biasing the housing toward the raised position; and a wheel engagement surface defined by the housing, wherein the wheel engagement surface is configured to engage the wheel when the housing is in the lowered position to inhibit rotation of the wheel, wherein the wheel engagement surface comprises an angled surface that engages an outer surface defined by the wheel when the housing is in the lowered position, wherein the wheel engagement surface is spaced above the outer surface of the wheel when the housing is in the raised position; wherein the housing interior includes a wall spaced from the wheel engagement surface, and wherein engagement of the wheel engagement surface with the outer surface of the wheel functions to move the wheel laterally toward the wall, wherein the angle of the wheel engagement surface wedges the wheel between the wall and the wheel engagement surface to inhibit rotation of the roller when the housing is in the lowered position. 9. The locking roller assembly of claim 8, wherein the axle guide arrangement includes a generally vertical inner slot formed in the wall, in combination with an outer slot associated with the housing, wherein an inner end portion of the axle is received within the inner slot and an outer end portion of the axle is received within the outer slot. 10. The locking roller assembly of claim 9, wherein the outer slot is formed in an end wall defined by the housing, wherein the end wall is located vertically below the angled wheel engagement surface. 11. The locking roller assembly of claim 9, wherein the inner end portion of the axle is mounted to an axle carrier, wherein the housing is movable upwardly and downwardly relative to the axle carrier when the housing is moved between the raised and lowered positions, respectively. 12. The locking roller assembly of claim 11, wherein the biasing arrangement comprises a spring that bears between the axle carrier and a facing spring engagement surface defined by the housing for biasing the housing toward the raised position. 13. The locking roller assembly of claim 12, wherein the axle carrier includes an upwardly extending projection that is engaged with a lower end defined by the spring, for maintaining the spring in engagement with the axle carrier. 14. A locking roller assembly for an article of furniture, comprising: a housing defining an interior, wherein the housing includes an engagement surface; a wheel rotatably mounted to the housing in a fixed orientation relative to the housing, wherein the wheel is rotatable about an axis of rotation and wherein the housing is movable between a raised position and a lowered position relative to the wheel; a biasing arrangement for biasing the wheel toward the lowered position; and a wheel engagement area within the interior of the housing, wherein the engagement surface is configured to engage the wheel when the housing is in the lowered position and to move the wheel laterally along the axis of rotation of the wheel into engagement with the wheel engagement area to inhibit rotation of the wheel. 15. The locking roller assembly of claim 14, wherein the engagement surface comprises an angled surface that engages an outer surface defined by the wheel when the housing is in the lowered position, wherein the angled engagement surface is spaced above the outer surface of the wheel when the housing is in the raised position. 16. A locking roller assembly for an article of furniture, comprising: a housing defining an interior, wherein the housing includes an end wall defining an engagement surface, wherein the housing interior includes a laterally extending passage configured to receive a component of the article of furniture for use in mounting the locking roller to the article of furniture, and wherein the end wall is in alignment with the laterally extending passage; a wheel rotatably mounted to the housing in a fixed orientation relative to the housing, wherein the housing is movable between a raised position and a lowered position; a biasing arrangement for biasing the housing toward the raised position; and an engagement surface defined by the housing and at least in part defining the interior of the housing, wherein the engagement surface is configured to engage the wheel when the housing is in the lowered position to inhibit rotation of the wheel. 17. The locking roller assembly of claim 14, further comprising an axle guide arrangement associated with the housing for guiding vertical movement of the housing relative to the axle between the lowered position and the raised position. 18. The locking roller assembly of claim 17, wherein the axle guide arrangement includes an outer slot defined by the housing end wall, in combination with a guide wall spaced inwardly from the end wall, wherein the guide wall includes an inner slot in alignment with the outer slot, wherein an outer portion of the axle is engaged within the outer slot and an inner portion of the axle is engaged within the inner slot. 19. The locking roller assembly of claim 18, wherein the axle inner portion is mounted to an axle carrier located inwardly of the guide wall, and wherein the biasing arrangement comprises a spring that bears between the housing and the axle carrier for biasing the housing toward the raised position. 20. The locking roller assembly of claim 19, wherein the axle carrier comprises a generally planar member located adjacent the guide wall. 21. A locking roller assembly for an article of furniture, comprising: a housing defining an interior and including a laterally extending passage for receiving a component of the article of furniture for use in mounting the locking roller to the article of furniture, wherein the housing includes an end wall, wherein the end wall is configured to close the passage and to at least in part define the interior of the housing, and wherein the end wall defines an engagement surface; a wheel rotatably mounted within the interior of the housing, wherein the housing is movable relative to the wheel between a raised position and a lowered position; and a biasing arrangement for biasing the housing toward the raised position; wherein movement of the housing to the lowered position from the raised position is operable to move the engagement surface into contact with the wheel to inhibit rotation of the wheel. 22. The locking roller assembly of claim 21, wherein the engagement surface comprises an angled surface that engages an outer surface defined by the wheel when the housing is in the lowered position, wherein the wheel engagement surface is spaced above the outer surface of the wheel when the housing is in the raised position. 23. The locking roller assembly of claim 21, further comprising an axle guide arrangement associated with the housing for guiding vertical movement of the housing relative to the wheel between the lowered position and the raised position. 24. The locking roller assembly of claim 23, wherein the axle guide arrangement includes an outer slot defined by the housing end wall, in combination with a guide wall spaced inwardly from the end wall, wherein the guide wall includes an inner slot in alignment with the outer slot, wherein an outer portion of the axle is engaged within the outer slot and an inner portion of the axle is engaged within the inner slot. 25. The locking roller assembly of claim 21, wherein the axle is mounted to an axle carrier located within the interior of the housing, and wherein the biasing arrangement comprises a spring configured to bear between the axle carrier and the housing for biasing the housing toward the raised position. 26. The locking roller assembly of claim 25, further comprising a guide arrangement associated with the housing for guiding vertical movement of the housing relative to the wheel between the raised and lowered positions. 27. The locking roller assembly of claim 26, wherein the guide arrangement includes a guide wall having a generally vertical inner guide slot within which an inner portion of the axle is received, and an outer guide slot in the end wall of the housing within which an outer portion of the axle is received, wherein the inner and outer guide slots are aligned with each other and are configured to engage the axle to guide movement of the housing relative to the axle.

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이 특허를 인용한 특허 (5)

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Locking roller for an article of furniture

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이 특허를 인용한 특허 (5)

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Locking roller for an article of furniture

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인용문헌 (15)

이 특허를 인용한 특허 (5)

IPC 상위 출원인

과제정보

상세정보조회

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IPC 상세정보(version : 201201)

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