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1. 发明授权

US4759587A Manual override for power recliner seat screw jack 失效
标题翻译：电动倾斜座椅螺丝千斤顶的手动超驰
公开(公告)号：US4759587A
公开(公告)日：1988-07-26
申请号：US90101
申请日：1987-08-27
申请人： David J. Bucka
发明人： David J. Bucka
IPC分类号： A47C1/024 , B60N2/23 , B60N1/02
CPC分类号： B60N2/233
摘要： A power driven screw jack with manual override for adjusting the inclination of a pivotable backrest in a recliner seat has a housing attachable to the stationary portion of the seat and a screw attachable to the backrest. A nut threaded on the screw is normally fixed to the housing such that the screw may be motor driven to obtain axial displacement of the screw through the housing. A nut release is manually actuatable for freeing the nut from the housing, whereby the inclination of the backrest is adjustable by either turning the motor driven screw with the nut locked to the housing, or by linearly moving screw through the housing together with the nut released from the housing as by pushing on the backrest in case of power failure to the screw motor.
摘要翻译：具有用于调节倾斜座椅中的可枢转靠背倾斜的手动操纵的动力驱动螺旋千斤顶具有可附接到座椅的静止部分的壳体和可附接到靠背的螺钉。螺丝螺纹上的螺母通常固定在壳体上，使得螺杆可以被电动机驱动以获得螺钉穿过壳体的轴向位移。螺母释放是可手动驱动的，用于将螺母从壳体释放，由此靠背的倾斜度可以通过将螺母锁定到壳体上的电动机驱动的螺钉来调节，或者通过线性移动螺钉通过壳体与释放的螺母通过在电源故障的情况下推靠在靠背上的螺钉马达，从外壳。

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