公开(公告)号：US20090086584A1

公开(公告)日：2009-04-02

申请号：US12207164

申请日：2008-09-09

申请人： Osamu TAKAHASHI ,  Nobuyuki HIROSE ,  Masaaki MAEJIMA ,  Masatoshi MOTEKI

发明人： Osamu TAKAHASHI ,  Nobuyuki HIROSE ,  Masaaki MAEJIMA ,  Masatoshi MOTEKI

IPC分类号： G04B1/10

CPC分类号： G04B1/10 ,  G04B9/02

摘要： A spring device having an inside-end wheel that moves in conjunction with the inside end of a mainspring; an outside-end wheel that moves in conjunction with the outside end of the mainspring; a torque return unit that transfers part of the output torque of the mainspring from one to the other of the inside-end wheel and outside-end wheel; a duration time indicating unit that operates in conjunction with both the inside-end wheel and outside-end wheel and indicates the number of winds in the mainspring; and a torque transfer clutch unit that disengages torque transfer between the inside-end wheel and outside-end wheel by means of the torque return unit when the mainspring unwinds and the duration time indicating unit indicates a predetermined reference number of winds.

摘要翻译： 弹簧装置，其具有与主发条的内端一起移动的内端轮; 与主发条的外端一起移动的外端轮; 转矩返回单元，其将主发条的输出转矩的一部分从内端轮和外端轮中的一个转移到另一个; 持续时间指示单元，其与内端轮和外端轮一起操作并且指示主发条中的风数; 以及扭矩传递离合器单元，当发条退绕和持续时间指示单元指示预定的参考数量时，借助于转矩返回单元使内端轮和外端轮之间的转矩传递脱离。