[특허]Collapsible stackable storage cart

Acu-Pac, Inc.

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Collapsible stackable storage cart

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B62B-003/00 B62B-003/02 B62B-003/16
출원번호	US-0726024 (2015-05-29)
등록번호	US-9371083 (2016-06-21)
발명자 / 주소	Jones, Jason N. Snoddy, Thomas M.
출원인 / 주소	Acu-Pac, Inc.
대리인 / 주소	Calhoun, Joe D.
인용정보	피인용 횟수 : 2 인용 특허 : 53

초록

A stackable cart for storing items when in a collapsed configuration, including a wheeled base, an elevation means such as a scissor extension apparatus attached to the wheeled base, a basket frame attached to the scissor extension apparatus, and an actuation mechanism governing the height of the basket in a raised configuration of the cart.

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1. A collapsible cart storing items when full and which can be stacked with another such cart while full, comprising a wheeled base supporting an elevation means supporting a receptacle frame, and an actuation mechanism governing the height of the receptacle frame, said wheeled base comprising castered wheels rotatable to be positioned in a cooperative relationship adjacent said receptacle frame of another such cart when lowered thereon for stacking, to maintain vertical alignment of said stacked carts, wherein: (a) said wheeled base comprises an actuation base-side having opposite ends, an opposite base-side having opposite ends, and a connecting base-frame connecting said base-sides;(b) said receptacle comprises a receptacle frame comprising an actuation upper side, an opposite upper side, and a connecting upper frame connecting said upper sides; and(c) said elevation means comprises a scissor extension apparatus comprising at least one pair of scissor-legs pivotally attached at a mid region, one such scissor-leg having a static pivot end rotatably attached to said wheeled base and a movable end operatively coupled to said receptacle frame, the other such scissor-leg having a static pivot end rotatably attached to said receptacle frame and a movable end operatively coupled to said wheeled base, movement of said movable ends toward said respective static ends increasing the height of said basket frame. 2. The cart of claim 1, wherein said connecting base-frame comprises an essentially parallel pair of base guide tracks and said connecting upper frame comprises an essentially parallel pair of upper guide tracks, each upper guide track supported by a separate pair of said scissor-legs. 3. The cart of claim 2, wherein each of the operative couplings of the respective scissor-leg movable ends comprises a wheel bearing rollable within a respective guide track. 4. The cart of claim 2, wherein each of the operative couplings of the respective scissor-leg movable ends comprises a shoe slidable within a respective guide track. 5. The cart of claim 2, wherein: (a) one of the upper guide tracks connects the actuation upper side end to the opposite upper side end, the other of the upper guide tracks connects the actuation upper side opposite end to the opposite upper side opposite end;(b) one of the base guide tracks connects the actuation base-side end to the opposite base-side end, the other of the base guide tracks connects the actuation base-side opposite end to the opposite base-side opposite end; and(c) the wheeled base further comprises, at each such corner connection of a base-side and guide track, a castered wheel mounted near the connection and rotatable to be positionally inset in relation to an adjacent upper side of another of such cart when stacking occurs. 6. The cart of claim 2, the actuation mechanism comprising a fulcrum member anchored to the wheeled base, and an actuation lever having an actuation pedal in cooperating engagement with the fulcrum member and, for each base guide track, an opposite end insertable within said guide track to stop movement of the respective scissor-leg movable end toward the actuation base-side. 7. The cart of claim 2, wherein: (a) the base guide tracks comprise a pair of medial base guide tracks, the upper guide tracks comprise a pair of medial upper guide tracks; and(b) the wheeled base further comprises, at each base-side end, a castered wheel rotatable to be positionally outset in relation to an adjacent upper side end of another such cart when stacking occurs. 8. The cart of claim 2, each base-side further comprising a downstanding tab engageable with an upper side of another such cart when stacking occurs. 9. The cart of claim 2, further comprising an open-top receptacle enclosure supported atop the connecting upper frame. 10. The cart of claim 2, wherein: (a) each of the operative couplings to a base guide track comprises a wheel bearing rollable within a respective base guide track, said wheels carried upon a connecting span; and(b) the actuation mechanism comprising, a fulcrum member anchored to the wheeled base, and an actuation lever having an actuation pedal in cooperating engagement with the fulcrum member and an opposite end region including a longitudinal slot defining a plurality of notches and impaled by the span. 11. The cart of claim 2, each upper side further comprising at least one stop member downstanding below the connecting upper frame and preventing further lowering of the receptacle frame. 12. A collapsible cart storing items when full, comprising: (a) a wheeled base comprising an actuation base-side having opposite ends, an opposite base-side having opposite ends, and a connecting base-frame comprising an essentially parallel pair of medial base guide tracks, each connecting the base-sides;(b) a basket supported by a basket frame comprising an actuation upper side having opposite ends, an opposite upper side having opposite ends, and a connecting upper frame comprising an essentially parallel pair of medial upper guide tracks, each connecting the upper sides, said upper sides further comprising at least one stop member downstanding below the connecting upper frame a sufficient length to contact the wheeled base and bear the load of the cart and stored items in the fully collapsed storage configuration;(c) a scissor extension apparatus attached to the wheeled base and comprising a plurality of separate scissor-leg pairs, each such pair pivotally attached at a mid region, one such scissor-leg having a static pivot end rotatably attached to a respective base guide track and a movable end operatively coupled to a respective upper guide track, the other such scissor-leg having a static pivot end rotatably attached to the upper guide track and a movable end operatively coupled to said base guide track, movement of the movable ends toward said respective static ends increasing the height of the basket frame; and(d) an actuation mechanism governing the height of the basket. 13. The cart of claim 12, wherein operative coupling of each movable end to a respective guide track comprises a wheel bearing rollable within the guide track. 14. The cart of claim 12, wherein: (a) each of the operative couplings to a base guide track comprises a wheel bearing rollable within a respective base guide track, said wheels carried upon a connecting span; and(b) the actuation mechanism comprises a fulcrum member anchored to the wheeled base, and an actuation lever having an actuation pedal in cooperating engagement with the fulcrum member and an opposite end region including a lower face defining a plurality of notches configured to catch the span when the lever is in a resting position and the movable ends are moving toward the actuation base-side. 15. The cart of claim 12, wherein: (a) each of the operative couplings to the base guide track comprises a wheel bearing rollable within a respective base guide track, said wheels carried upon a connecting span; and(b) the actuation mechanism comprises a fulcrum member anchored to the wheeled base, and an actuation lever having an actuation pedal in cooperating engagement with the fulcrum member and an opposite end region including a longitudinal slot impaled by the span and having an upper border defining a plurality of notches configured to catch the span when the lever is in a resting position and the movable ends are moving toward the actuation base-side. 16. The cart of claim 12, wherein the wheeled base further comprises, at each base-side end, a castered wheel rotatable to be positionally outset in relation to a nearest upper side end of another such cart when stacking occurs, and wherein each base-side further comprising a downstanding tab engageable with an upper side of another such cart when stacking occurs. 17. The cart of claim 12 wherein: (a) the wheeled base further comprises, at each base-side end, a castered wheel rotatable to be positionally outset in relation to a nearest upper side end of another such cart when stacking occurs, and wherein each base-side further comprising a downstanding tab engageable with an upper side of another such cart when stacking occurs;(b) each static pivot end of the scissor extension apparatus is rotatably attached to the wheeled base by a singular pivot member, each of the operative couplings of the scissor-leg movable ends comprises a wheel bearing rollable within a respective base guide track, said wheels carried upon a connecting span;(c) the basket frame wherein each end of an upper side includes an upright having a lower end forming one of said stops and an upper end attached to a handle-bar member connecting both upper ends; and(d) the actuation mechanism comprises a fulcrum member including a rod bridging between the base guide tracks, and an actuation lever having an actuation pedal in cooperating engagement with the rod and having an opposite end region including a longitudinal slot impaled by the span and having an upper border defining a plurality of notches configured to catch the span when the lever is in a resting position and the movable ends are moving toward the actuation base-side.

이 특허에 인용된 특허 (53)

이 특허를 인용한 특허 피인용횟수: 2

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Collapsible stackable storage cart

초록

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이 특허에 인용된 특허 (53)

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Collapsible stackable storage cart

초록

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이 특허에 인용된 특허 (53)

이 특허를 인용한 특허 피인용횟수: 2

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