发明授权
- 专利标题： Mechanical timepiece with stud adjustment mechanism
- 专利标题（中）： 机械钟表带螺柱调节机构
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申请号： US09787854申请日： 2001-04-27
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公开(公告)号： US06612734B1公开(公告)日： 2003-09-02
- 发明人: Mamoru Watanabe , Takeshi Tokoro
- 申请人： Mamoru Watanabe , Takeshi Tokoro
- 主分类号： G04B1500
- IPC分类号： G04B1500
摘要：
A mechanical timepiece movement has a mainspring serving as a power source, a wheel train rotated by a rotational force produced by the mainspring for driving a display, and an escapement and speed control apparatus for controlling rotation of the wheel train and having a balance with hairspring, an escape wheel and pinion and a pallet fork. A stud holder is rotatably mounted with respect to a central axis of the balance with hairspring and a hairspring holder is attached to the stud holder to undergo movement in a direction orthogonal to the central axis of the balance with hairspring. A hairspring has a central portion fixed to the balance with hairspring and an outer portion fixed to the hairspring holder. The hairspring is adjustable by pivoting the hairspring holder.
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