[특허]Multi function hand truck

Celli,Giuliano

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특허 상세정보

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Multi function hand truck

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B62B-001/12 B62B-001/00
미국특허분류(USC)	280/047.18; 280/047.26; 280/047.33; 280/047.21
출원번호	US-0212755 (2005-08-29)
발명자 / 주소	Celli,Giuliano
출원인 / 주소	Celli,Giuliano
인용정보	피인용 횟수 : 16 인용 특허 : 11

초록
▼

A multi-function hand truck is convertible to allow lifting of a load at a spaced distance from the truck and/or is convertible for use as a wheelbarrow. A pair of lifting arms co-operate with the frame of the hand truck to extend outwardly therefrom and allow the frame of the hand truck to provide a mechanical advantage for lifting. The wheels of the truck are moveable rearwardly for conversion to a wheelbarrow mode. An open top container is positioned within the frame of the hand truck for receiving material. The multi-function hand truck is efficient...

대표
청구항
▼

The invention claimed is: 1. A wheelbarrow comprising a pair of wheels having a common rotational axis adjacent one end thereof positioned on opposite side of an open top shallow formed container, said wheelbarrow at an end thereof opposite to said pair of wheels including two spaced rearwardly extending handles with the handles located on opposite sides of said wheelbarrow, said wheelbarrow including a pair of foldable legs movable from a storage position adjacent a lower surface of said container to a load support position extending downwardly and away from said container for supporting said wheel barrow with the open top of the formed container orientated generally horizontally; said pair of wheels being secured by a movable mounting arrangement controlling movement of said pair of wheels between a wheelbarrow operational position intermediate the length of said container with said rotational axis of the wheels below said formed container to a wheelbarrow storage position with said wheels and said rotational axis in front of said formed container and cooperating with a front support; said pair of wheels in said wheelbarrow storage position cooperating with said front support to define a said vertical storage position of said wheelbarrow with said legs in said storage position having a depth generally corresponding to the depth of said formed container. 2. A wheelbarrow as claimed in claim 1 including an elongate frame supporting said pair of handles extending from one end of said frame with said frame supporting said movable mounting arrangement at an end thereof opposite said handles; said open top shallow formed container being supported interior to said frame and extending beneath said frame. 3. A wheelbarrow as claimed in claim 1 including a control linkage for moving of said pair of wheels between said operational position and said storage position. 4. A wheelbarrow as claimed in claim 1 including a control linkage connecting said movable mounting arrangement and said pair of foldable legs, said control linkage simultaneously moving said wheels between said operation and storage positions moving said foldable legs between said load support position and said storage position. 5. A wheelbarrow as claimed in claim 4 wherein said linkage is an over center linkage having a bias maintaining said wheels in said wheelbarrow operational position unless moved by a user to cause the wheels to move towards said wheelbarrow storage position. 6. A wheelbarrow as claimed in claim 5 wherein said foldable legs are part of a control linkage connected to said movable mounting arrangement to thereby control the position of said wheels. 7. A wheelbarrow as claimed in claim 6 wherein said control linkage engages a stop member attached to said frame. 8. A wheelbarrow as claimed in claim 1 wherein said wheelbarrow with said wheels in said storage position being operable as a hand truck and with said wheels in said second position defining an operational position for supporting a load positioned to a top side of said frame. 9. A wheelbarrow as claimed in claim 1 including a pair of lifting arms pivotally attached to said frame and movable from a storage position with said arms aligned with said frame to an operational position with said arms extending outwardly away from a top surface of said frame. 10. A wheelbarrow comprising an elongate frame, a pair of coaxial wheels attached at one end of said frame either side thereof and movable between a vertical storage position and a wheelbarrow position, a pair of handles extending from said frame at an end thereof opposite said wheels, an open top container supported by said frame and located generally within and below said frame, foldable leg means attached to said wheelbarrow and movable between a storage position collapsed adjacent said elongate frame and an in use position extending outwardly away from said frame; said wheels in said vertical storage position cooperating with a support portion on an end of said frame to provide a vertical storage position of said wheelbarrow having a depth corresponding to the depth of said open top container; said pair wheels of wheels in said wheelbarrow position being located beneath said container and intermediate a length of said container. 11. A wheelbarrow as claimed in claim 10 wherein said foldable leg means are connected through a linkage with said coaxial wheels, said linkage causing said coaxial wheels to move to said vertical storage position when said foldable leg means are moved to said storage position. 12. A wheelbarrow as claimed in claim 11 wherein said linkage has an over center lock position which releasably locks said coaxial wheels in said vertical storage position. 13. A convertible wheelbarrow comprising an elongate frame with a handle arrangement extending from one end of said frame, a movable wheel arrangement pivotally secured to said frame at an end thereof opposite said handle arrangement, an open topped container secured within said frame and extending below said frame, and a leg support arrangement space rearwardly of said movable wheel arrangement, said leg support arrangement being movable between a storage position with the leg support arrangement being adjacent and extending generally in a length of said container and a load support position where said leg support arrangement extends at an angle away from said container; and wherein said wheel arrangement is movable between a first position immediately adjacent said end opposite said handle arrangement where said wheelbarrow is self supporting in a vertical orientation of said frame and said container to an in use second position where said frame is at an angle to a support surface and said wheel arrangement is spaced from said end opposite said handle arrangement and moved towards said handle arrangement and beneath said open topped container having a horizontal orientation; wherein said wheelbarrow is self supporting in a space efficient generally vertical orientation of said frame with said wheel arrangement in said first position positioned beneath a front edge of said container with said leg arrangement in said storage position and said wheelbarrow is convertible to a working configuration with said wheel arrangement in said in use position and said leg support arrangement in said load support position. 14. A wheelbarrow as claimed in claim 13 wherein said leg support arrangement is a pair of foldable legs and said wheel arrangement includes a pair of wheels pivotally secured opposite sides of said frame. 15. A wheelbarrow as claimed in claim 14 wherein said pair of wheels having a common axle extending therebetween. 16. A wheelbarrow as claimed in claim 15 including a movable toe plate attached adjacent a bottom edge of said frame and extendable forwardly of said frame away from said container.

이 특허에 인용된 특허 (11)

이 특허를 인용한 특허 피인용횟수: 16

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구성항목	관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
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특허 상세정보

Multi function hand truck

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이 특허에 인용된 특허 (11)

이 특허를 인용한 특허 피인용횟수: 16

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Multi function hand truck

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이 특허에 인용된 특허 (11)

이 특허를 인용한 특허 피인용횟수: 16

IPC 상위 출원인

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IPC 상세정보(version : 201201)

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