[특허]Wheelchair

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Wheelchair

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61G-005/14
미국특허분류(USC)	280/250.1; 280/304.1
출원번호	UP-0887661 (2006-03-29)
등록번호	US-7845665 (2011-01-31)
국제출원번호	PCT/CA2006/000475 (2006-03-29)
§371/§102 date	20070927 (20070927)
국제공개번호	WO06/102754 (2006-10-05)
발명자 / 주소	Borisoff, Jaimie
대리인 / 주소	Dupuis, Ryan W.
인용정보	피인용 횟수 : 16 인용 특허 : 177

초록
▼

A wheelchair according to one embodiment is provided with a frame and a seat assembly that is movable in elevation relative to the frame. The frame has a seat hinge mounted thereto, and is rotatably coupled to left and right wheels. The seat assembly has a side member hingedly coupled to the seat hinge and a seat back hingedly coupled to the side member such that the seat back can be maintained at a constant angle relative to the frame when the side member pivots about the seat hinge and moves the seat assembly between multiple elevations. The wheelchair also comprises a lockable spring hingedly mounted to the frame and to the seat assembly; the spring is lockable at multiple positions thereby locking the seat assembly at the multiple elevations. This spring can be sufficiently elastic to suspend the seat assembly and absorb shock at each of the locked multiple elevations.

대표
청구항
▼

What is claimed is: 1. A wheelchair comprising: (a) a frame having a front portion with a seat hinge mounted thereto at a first elevation, and a rear portion rotatably coupled to left and right wheels; (b) a seat assembly comprising at least one side member hingedly coupled to the seat hinge, and a seat back hingedly coupled to the side member such that the seat back can be maintained at a substantially constant angle relative to the frame when the side member pivots about the seat hinge and moves the seat assembly between multiple elevations, (c) a lockable spring hingedly mounted to the frame and to the seat assembly, the spring being lockable at multiple positions thereby locking the seat assembly at the multiple elevations; (d) a seat bottom; and (e) an auxiliary member connecting the seat back to the seat bottom, in which the auxiliary member is operable to maintain the seat bottom at substantially the same angle to the seat back at each of the multiple elevations. 2. A wheelchair as claimed in claim 1 wherein the lockable spring comprises an elastic lockable spring hingedly which is sufficiently elastic to suspend the seat assembly and absorb shock at each of the locked multiple elevations. 3. A wheelchair as claimed in claim 2 wherein the seat assembly is movable into a lowest elevation in which the spring can be locked, and the frame has a selected clearance below the seat assembly when at the lowest elevation, the clearance selected being arranged to allow the seat assembly to deflect downwards when the spring absorbs shock. 4. A wheelchair as claimed in claim 1 wherein the seat assembly comprises a seat bottom hingedly mounted to the seat back or side member such that the seat bottom angle can be adjusted independently of the seat back angle. 5. A wheelchair as claimed in claim 1 wherein the seat assembly further comprises at least one parallel member hingedly coupled to the frame and to the seat assembly in substantial parallel alignment with the side member such that the seat back is maintained in substantially the same angle to the frame at each of the multiple elevations. 6. A wheelchair as claimed in claim 5 wherein the parallel member is adjustable in length, whereupon adjustment of the parallel member length adjusts the seat back angle relative to the frame at each of the multiple elevations. 7. A wheelchair as claimed in claim 1 wherein the auxiliary member comprises at least one side guard connecting the seat back to the seat bottom, said at least one side guard being operable to maintain the seat bottom at substantially the same angle to the seat back at each of the multiple elevations. 8. A wheelchair as claimed in claim 7 wherein the side guard is adjustable in length, whereupon adjustment of the side guard length adjusts the seat bottom angle relative to the seat back at each of the multiple elevations. 9. A wheelchair as claimed in claim 1 further comprising a hand-operated spring actuator coupled to the spring and operable to lock the spring in each of the multiple positions, wherein the actuator is positioned on the seat assembly in a location that enables a user sitting in the wheelchair to use the same hand to actuate the actuator and at least partially lift the user off the seat assembly or pull the seat assembly downwards. 10. A wheelchair as claimed in claim 9 wherein the actuator is located on the side member sufficiently close to the frame that the user can at least partially lift the user off the seat assembly or pull the seat assembly downwards. 11. A wheelchair comprising: (a) a frame having a front portion with a seat hinge mounted thereto at a first elevation, and a rear portion rotatably coupled to left and right wheels; (b) a seat assembly comprising at least one side member hingedly coupled to the seat hinge, and a seat back hingedly coupled to the side member, and a linkage coupled to the frame and to the seat assembly such that the seat back can be maintained at a substantially constant angle relative to the frame when the side member pivots about the seat hinge and moves the seat assembly between multiple elevations; and (c) a lockable spring hingedly mounted to the frame and to the seat assembly, the spring being lockable at multiple positions thereby locking the seat assembly at the multiple elevations; (d) the linkage being adjustable so as to be arranged to adjust the seat back angle relative to the frame at each of the multiple elevations. 12. A wheelchair as claimed in claim 11 wherein the seat comprises a seat bottom hingedly coupled to the seat back or side member such that the seat bottom angle can be adjusted independently of the seat back angle. 13. A wheelchair as claimed in claim 12 wherein the linkage comprises at least one parallel member hingedly coupled to the frame and to the seat assembly in substantial parallel alignment with the side member such that the seat back is maintained in substantially the same angle to the frame at each of the multiple elevations. 14. A wheelchair as claimed in claim 13 wherein the parallel member is adjustable in length, whereupon adjustment of the member length adjusts the seat back angle relative to the frame at each of the multiple elevations. 15. A wheelchair as claimed in claim 11 further comprising a hand-operated actuator coupled to the spring and operable to lock the spring in each of the multiple positions, the actuator located on the wheelchair in a position that allows a user sitting in the wheelchair to use the same hand to actuate the actuator and at least partially lift the user off the seat assembly. 16. A wheelchair as claimed in claim 15 wherein the actuator is positioned on the frame in a location that enables a user sitting in the wheelchair to use the same hand to actuate the actuator and at least partially lift the user off the seat assembly or pull the seat assembly downwards. 17. A wheelchair as claimed in claimed in claim 16 wherein the wheels include an axle and a rim, and the actuator is located sufficiently close to the rim that the user can grasp the rim and actuator at the same time, and the actuator is located sufficiently close to the vertical centreline of the axle that the user can at least partially lift the user off the seat assembly or pull the seat assembly downwards without causing the wheel to rotate. 18. A wheelchair as claimed in claim 15 wherein the actuator is positioned on the seat assembly in a location that enables a user sitting in the wheelchair to use the same hand to actuate the actuator and at least partially lift the user off the seat assembly or pull the seat assembly downwards. 19. A wheelchair as claimed in claim 18 wherein the actuator is located on the side member sufficiently close to the frame that the user can at least partially lift the user off the seat assembly or pull the seat assembly downwards. 20. A wheelchair comprising: (a) a frame having a front portion with a seat hinge mounted thereto at a first elevation, and a rear portion rotatably coupled to left and right wheels; (b) a seat assembly comprising at least one side member hingedly coupled to the seat hinge, a seat back hingedly coupled to the side member such that the seat back can be maintained at a substantially constant angle relative to the frame when the side member pivots about the seat hinge and moves the seat assembly between multiple elevations, a seat bottom, and at least one side guard connecting the seat back to the seat bottom, the side guard being operable to maintain the seat bottom at substantially the same angle to the seat back at each of the multiple elevations; and (c) a lockable spring hingedly mounted to the frame and to the seat assembly, the spring being lockable at multiple positions thereby locking the seat assembly at the multiple elevations. 21. A wheelchair as claimed in claim 20 wherein the side guard is adjustable in length, whereupon adjustment of the side guard length adjusts the seat bottom angle relative to the seat back at each of the multiple elevations. 22. A wheelchair as claimed in claim 20 further comprising a hand-operated spring actuator coupled to the spring and operable to lock the spring in each of the multiple positions, wherein the actuator is positioned on the seat assembly in a location that enables a user sitting in the wheelchair to use the same hand to actuate the actuator and at least partially lift the user off the seat assembly or pull the seat assembly downwards. 23. A wheelchair as claimed in claim 22 wherein the seat assembly comprises a side member hingedly coupled to the frame, and the actuator is located on the side member sufficiently close to the frame that the user can at least partially lift the user off the seat assembly or pull the seat assembly downwards. 24. A wheelchair as claimed in claim 20 wherein the spring is hingedly mounted to the frame and to the seat assembly, is lockable at multiple positions thereby locking the seat assembly at the multiple elevations, and is sufficiently elastic to suspend the seat assembly and absorb shock at each of the locked multiple elevations. 25. A wheelchair as claimed in claim 24 wherein the seat assembly is movable into a lowest elevation in which the gas spring can be locked, and the frame has a selected clearance below the seat assembly when at the lowest elevation, the clearance selected to allow the seat assembly to deflect downwards when the gas spring absorbs shock.

이 특허에 인용된 특허 (177)

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
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특허 상세정보

Wheelchair

초록
▼

대표
청구항
▼

이 특허에 인용된 특허 (177)

이 특허를 인용한 특허 피인용횟수: 16

IPC 상위 출원인

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원문조회

IPC 상세정보(version : 201201)

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특허 상세정보

Wheelchair

초록 ▼

대표청구항 ▼

이 특허에 인용된 특허 (177)

이 특허를 인용한 특허 피인용횟수: 16

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

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