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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0272536 (1981-06-11) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 27 인용 특허 : 0 |
A battery powered steerable electric drive unit for detachable connection to a conventional wheelchair comprises: a framework releasably connectable to the wheelchair frame by snap-on connectors; a drive assembly pivotably (steerably) mounted on the framework and including a ground-engaging wheel an
In an electric drive unit for a wheelchair which has a pair of laterally spaced apart frame members extending fore and aft and a pair of cross members connected together by a pivot pin, each cross member being connected to a frame member: a framework including a transverse member for disposition bet
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