Angle-adjusting device (1) includes an internal gear (11, 12) including at least an inner gear (8) and an outer gear (7). The internal gear is connected to either a fixed arm (9) or a movable arm (10). The angle-adjusting device further includes an externa...

The gear fitting (1) has at least two axial ring gears (11,28) that move relative to each other forming central gears and at least one axially arranged peripheral carrier pinion (24) between the ring gears. A wedged disc unit has two parts (22,26) acting i...