发明名称 CORRECTION DEVICE FOR DISPLAY MECHANISM OF TIMEPIECE, AND GEAR MATCHED TO CORRECTION DEVICE
摘要 <p><P>PROBLEM TO BE SOLVED: To thin a device for correcting a time display mechanism. <P>SOLUTION: This correction device of the present invention has internal teeth 16 with a pitch P. The correction device has a pinion 26 and a correction gear 38. The pinion has a gear 30 with a pitch p. The correction gear is mounted between the pinion and a display member. The correction gear has the first gear 40 formed of teeth 42. The first gear has the pitch P, a head part diameter D and a leg part diameter d1. A tip of the first gear forms the second gear 46. The second gear 46 is coplanar and concentric. The pitch p of the second gear 46 is smaller than the pitch P of the first gear 40, the head part diameter D of the second gear is equal to the head part diameter D of the first gear, and a leg part diameter d2 of the second gear is larger than the leg part diameter d1 of the first gear. <P>COPYRIGHT: (C)2009,JPO&INPIT</p>
申请公布号 JP2008256687(A) 申请公布日期 2008.10.23
申请号 JP20080079830 申请日期 2008.03.26
申请人 ETA SA MANUFACTURE HORLOGERE SUISSE 发明人 CHAIGNAT JULIEN;BETTELINI MARCO
分类号 G04B19/25;G04B13/02 主分类号 G04B19/25
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