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특허 상세정보

Obstacle traversing wheelchair

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B60K-001/00   
미국특허분류(USC) 180/065.1; 180/907; 280/304.1
출원번호 UP-0490899 (2006-07-21)
등록번호 US-7597163 (2009-10-20)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Calfee, Halter & Griswold LLP
인용정보 피인용 횟수 : 27  인용 특허 : 133
초록

A wheelchair suspension is provided. The wheelchair suspension includes a frame, a pivot arm, a front caster, a drive assembly, and a rear caster. The pivot arm is pivotally coupled to the frame. The front caster is coupled to the pivot arm. Movement of the drive assembly in a first direction causes the pivot arm to substantially remain in a first position. Movement of the drive assembly in a second direction urges the pivot arm away from the first position.

대표
청구항

We claim: 1. A wheelchair suspension comprising: a frame; a pivot arm pivotally coupled to the frame; a front caster coupled to the pivot arm; a drive assembly mounting bracket; a rear caster coupled to the frame; and wherein movement of the drive assembly mounting bracket with respect to the frame in a first direction causes the pivot arm to remain in substantially a first position; and movement of the drive assembly mounting bracket with respect to the frame in a second direction urges the pivot arm away from the first position. 2. The wheelchair s...

이 특허에 인용된 특허 (133)

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이 특허를 인용한 특허 피인용횟수: 27

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