发明名称 Third wheel & pinion disengaging structure and timepiece possessing the same
摘要 To provide a third wheel & pinion disengaging structure which makes a hand setting complying with a pulling-out of a winding stem possible and can prevent a second hand from shaking even if undergoes an impact on the occasion of the hand setting, and a timepiece possessing the same. In a third wheel & pinion disengaging structure of a timepiece, a lever rotated in a plane with respect to a base body in compliance with a putting-in/out of a winding stem in A1, A2 directions possesses a third pinion setting part pressed to a third pinion in compliance with a pulling-out of the winding stem-and causing the third pinion to separate from a center wheel. It additionally has a third wheel & pinion biasing spring possessing a hole part to which a third spindle is fitted and causing a third wheel & pinion to elastically bias to a position meshing with a center wheel & pinion, and the third pinion setting part of the lever is pressed to the third pinion in compliance with the pulling-out of the winding stem and causes the third pinion to separate from the center wheel while resisting against an elastic biasing force of the third wheel & pinion biasing spring. The spring may be formed in the base body, or formed in the lever.
申请公布号 US2006187765(A1) 申请公布日期 2006.08.24
申请号 US20060356667 申请日期 2006.02.17
申请人 HAGA TAICHI 发明人 HAGA TAICHI
分类号 G04B19/02 主分类号 G04B19/02
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