Movement for time piece i.e. wristwatch, has friction system that is arranged on barrel, and friction hour wheel sliding on elastic units, so that friction driving wheel is turned around rod of barrel during setting movement

摘要

The movement has a friction system that is arranged on a barrel (1), and elastic units fixed on the barrel. The elastic units are in contact with a friction hour wheel (3), so that the elastic units drive the hour wheel and a friction driving wheel (5) during rotation around a rod of the barrel, where the hour wheel is adjusted on the rod of the barrel. The hour wheel is slid on the elastic units, so that the friction driving wheel is turned around the rod of the barrel during setting the movement. The elastic units are composed of friction springs (4, 4') at two sides of the hour wheel.