Sports equipment with backrest, seat with frame, and adjustment

摘要

The backrest (4) adjustment is positioned on a frame (6) with seat surface (8) and backrest joined to the seat frame by a swivel arm (3). The arm and backrest are adjustable by an adjustment to the size of the person exercising. The adjustment of the arm swivelling on a pivot point (2) is continuously carried out by a blockable pneumatic spring (1) positioned between the seat frame (6,7,14) and the swivel-arm. The spring is released by a release lever (10) at the top of a push-out part (9) of the spring.