Invention Grant
US5564786A Modular adjustable seat frame for wheelchairs 失效
模块化可调椅座椅

Modular adjustable seat frame for wheelchairs
Abstract:
A seat frame for mounting on a chair frame for supporting a seat pad and seat back. The frame is formed by a pair of spaced apart side rails, each rail having a plurality of spaced apart parallel transverse mounting beams extending therefrom towards the opposite rail. A central beam is telescopingly and releasably engaged between each corresponding mounting beam on the rails. Chair frame mounting fittings and seat back mounting fittings are releasably secured to the side rails.
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