Tilting device for backrest of body lifters has stand that is drawn into or out of recess of support by movement of gear rack along rack gear

摘要

A seat plate (5) is supported by a pair of arms (4,5) fitted into guide grooves on guide rails (2). The lower end of a backrest (9) is coupled to the rear side of the seat plate through a swivel bearing (7). A gear rack (16) moves along a rack gear (15) on the backrest such that a stand (41) is drawn into or out of a recess of a support (20).