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    • 6. 发明专利
    • Balance wheel structure and mechanical clock including the same
    • 平衡轮结构和机械时钟包括它们
    • JP2011215085A
    • 2011-10-27
    • JP2010085448
    • 2010-04-01
    • Seiko Instruments Incセイコーインスツル株式会社
    • EBI AKIRA
    • G04B17/32G04B18/02
    • PROBLEM TO BE SOLVED: To provide a balance wheel structure, having less risk of catching an outer peripheral section of a balance spring on a regulator pin and a stud, even if a disturbance, such as, impact is received, and to provide a mechanical clock that includes the balance wheel structure.SOLUTION: The balance wheel structure 2 of the mechanical clock 1 includes a stud support 50 supporting detachably a stud 55, to which the outer peripheral section 23 of a balance spring 20 is fixed; and a regulator body 30, removably supporting a pair of regulator pin sections 36a and 36b, which define an active length of the balance spring 20 on a circular arc section 24 of the outermost perimeter adjacent to the outer peripheral edge section of the balance spring. A radially outward edge section 53 of the stud support 50 or a radially outward edge section 33 of the regulator body 30 includes a catching-preventing projection 40 preventing a semi-outer peripheral section 27 that is on the inner side of the circular arc section 24 in the outer peripheral section from being caught on the stud or the regulator pin.
    • 要解决的问题:为了提供一种平衡轮结构,即使接收到诸如冲击的干扰,即使在调节器销和螺柱上捕获平衡弹簧的外周部分的风险较小,并且提供机械 包括平衡轮结构的时钟。解决方案:机械时钟1的摆轮结构2包括可拆卸地支撑螺柱55的螺柱支撑件50,平衡弹簧20的外周部分23固定到螺柱55上; 以及调节器主体30,其可拆卸地支撑一对调节销部分36a和36b,该对调节销部分36a和36b在平衡弹簧的外周边缘部分的最外周边的圆弧部分24上限定平衡弹簧20的有效长度。 螺柱支撑件50的径向向外的边缘部分53或调节器主体30的径向向外的边缘部分33包括防止突出部40,其防止在圆弧部分24的内侧上的半外周部分27 在外周部分被卡在螺柱或调节销上。