发明名称 ZERO SETTING MECHANISM OF COUNTER
摘要 PURPOSE:To obtain a zero setting mechanism that is free from any variance of engagement between the 1st gear and an intermediate gear, by forming a coarse surface for the revolution transmitting part of the intermediate gear and at the same time forming the revolution transmitting part of a gear to be driven with a material having a high coefficient of friction. CONSTITUTION:During the revolution, an intermediate gear 1 engages between the 1st gear 3 and a dial pate gear 4 to which the revolution is transmitted from a revolving pinion 2. This engagement of the gear 1 is released when zoro is set, and the dial plate gears 4, 5 and 6 are reset to each figure of zero. Then an engagement is given again to the gear 1. The working of a thin rib or satin finish is applied to a revolution transmitting part 1-2 of the gear 1 to the gear 3. And the rubber or the like material having a high coefficient of friction is used for a revolution transmitting part 3-1 of the gear 3. As a result, the revolving variance is eliminated among these gears.
申请公布号 JPS5764877(A) 申请公布日期 1982.04.20
申请号 JP19800140836 申请日期 1980.10.08
申请人 MATSUSHITA DENKI SANGYO KK 发明人 YAMAGUCHI KOUJI
分类号 G06M1/28 主分类号 G06M1/28
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