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GEAR-SHIFT ARRANGEMENT FOR A WHEELCHAIR WHEEL
专利权人:
GearWheel AB
发明人:
DIDNER, Nils,ÅKERFELDT, Dan
申请号:
EP15786312
公开号:
EP3137032A4
申请日:
2015.04.09
申请国别(地区):
EP
年份:
2017
代理人:
摘要:
A wheel assembly comprising a wheel (5) for a wheelchair (1), a gripping ring (6) connected to the wheel, and a gear-shift arrangement (7 10 40 70) the wheel being provided with a wheel axle (17 47 77) the gear-shift arrangement being configured to change a gear ratio between the wheel and the gripping ring the gear-shift arrangement comprising an internal-gear hub (8 16 46 76) comprising a number of internal gears (18, 18′, 18″ 48, 48′, 48″ 78, 78′, 78″), a shift member (15 45 75), and a gear selector (9 11 41 71) located on the same side of the wheel as the gripping ring, wherein the gear selector is operatively connected to the shift member (15 45 75) that is axially moveable within the internal-gear hub to engage a specific gear of said number of internal gears, and that the gear selector has an inner base portion (12 42 72) and an outer handle portion (13 43 73) and extends radially away from the wheel axle.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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