发明名称 Motorized wheelchair
摘要 A motorized wheelchair having right and left motorized rear wheels, and fixed front wheels in which a plurality of rollers rotatable in a direction orthogonal to an alignment direction of wheels are disposed therearound, comprises transmission rollers to transmit the rotation of the rear wheels to the front wheels while being disposed at a transmission position between circumferential surfaces of front and rear wheels in order to easily perform the switching to the four-wheel drive as necessary, a roller supporting arm for rotatably and oscillatingly supporting the transmission rollers in the front-rear direction of the wheelchair, and transmission roller pressure-contact springs for urging the roller supporting arm in a direction of the transmission position so as to be pressure-contacted with the circumferential surfaces of the wheels at the transmission position. An operation lever constrains the roller supporting arm in an interlocking manner in the direction away from the transmission position when being at the regular position, and releases the constrains when the operation lever being at the working position so as to allow the transmission rollers to be disposed at the transmission position.
申请公布号 US2007261897(A1) 申请公布日期 2007.11.15
申请号 US20070715514 申请日期 2007.03.08
申请人 KANTO AUTO WORKS, LTD. 发明人 TORITA HIDEKI
分类号 A61G5/04 主分类号 A61G5/04
代理机构 代理人
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