发明名称 HAND OPERATING MECHANISM OF ANALOG TIME PIECE WITHOUT GEAR
摘要 PURPOSE:To make abrasion and faults hard to occur and to make it possible to form a thin time piece, by arranging a plurality of spiral wirings on the rotary loci of the magnetic bodies of hands. CONSTITUTION:A plurality of spiral wirings 10 are provided on circular rotary loci 8a, 8b and 8c of the magnetic-body parts of an hour hand 2a, a minute hand 2b and a second hand 2a. To set a time, pulses for 360 deg. rotation are sent to the hour hand, the minute hand ad the second hand by pushing a rest button 16 so that 12-hour/0-minute/0-second is reset even if the hands are stopped at any positions when a power source is turned ON. After resetting, setting buttons 16, 18 and 20 are pushed for the hour hand, the minute hand and the second hand with manual operation. One pulse is transmitted for every button, and an arbitrary time is set. When a driving mechanism without gear is used in an analog time piece in this way, abrasion and faults are hard to occur, and the time piece can be made thin.
申请公布号 JPS63275983(A) 申请公布日期 1988.11.14
申请号 JP19870112167 申请日期 1987.05.08
申请人 SOUSEI DENSHI:KK 发明人 NISHINA RINTAROU
分类号 G04C3/00 主分类号 G04C3/00
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