| 摘要 |
A chair has easily adjustable arm rests (3) to avoid user fatigue. The arm rests (3) are joined to supporting members (6) which are joined to the chair body (10). Each of the joints is a universal joint (8, 9) which, after operation of a lever (30), permits swiveling movements in all directions and an axial movement of the supporting member (6). The universal joint (8, 9) consists essentially of a ferrule (20) with a threaded stud (21) attached to the supporting member (6) or to the chair body (10). The threaded stud (21) supports several shells (22, 25, 27; 22, 41, 27, 42, 40) which are pressed together by the lever (30). One or more of these shells (25, 41, 42) are either connected with one of the arm rests (3) or fastened to one of the supporting members (6). |
