Exercise bike has saddle cushion connected to top of adjuster device whose lower part engages U-shaped round horizontal rail provided on top of saddle support tube

摘要

The exercise bike has on the top of the saddle support tube (1) a horizontal rail (5) which is engaged U-shaped by the lower part (8) of an adjuster device (4). The saddle cushion (3) is connected to the top of the adjuster. The rail (5) has a slot (9) and the U-arms (14, 15) of the adjuster have bores (7) so that a threaded bolt (10) passes through the bores and slot interacting on the outside with an internal thread (13) of a rotary knob (11, 12) so that by turning the knobs the arms are tensioned against each other and against the rail.