Having the ahead or back space possible hour hand for 1 hour marks

摘要

PROBLEM TO BE SOLVED: To provide an additional device, coping with a resistance torque larger than the connection torque between an hour wheel and pinion and an additional wheel.;SOLUTION: In this time zone time piece, including an hour hand 6 advanced or moved back by steps of one hour, without affecting minute display, by a system 28 started manually, the hour hand 6 is engaged with an hour wheel and pinion pipe 4; the hour hand 6 is driven by a motion work 10 and is turnably regulated around the hour wheel and pinion as the center; the additional wheel 12 fixed to the pipe 4 drives the additional device; the hour wheel and pinion 2 is connected to the additional wheel 12 by a constant torque mechanism 16; and the hour wheel and pinion 2 and the additional wheel 12 are connected further firmly by the second connection mechanism, excepting the period, when a time zone time is corrected.;COPYRIGHT: (C)2005,JPO&NCIPI