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TEMPERATURE COMPENSATION-TYPE BALANCE, TIMEPIECE MOVEMENT, MECHANICAL TIMEPIECE AND MANUFACTURING METHOD OF TEMPERATURE COMPENSATION-TYPE BALANCE

机译:温度补偿型平衡,时间运动,机械时间及温度补偿型平衡的制造方法

摘要

A temperature compensation-type balance includes a balance staff, and a balance wheel that has a plurality of bimetal portions which are disposed in parallel to each other in a circumferential direction around a rotational axle O of the balance staff and connection members which connect the plurality of bimetal portions and the balance staff. The bimetal portion is a layered body in which a first member and a second member are radially overlapped, and one end portion in the circumferential direction is a fixed end connected to the connection member and the other end portion in the circumferential direction is a free end. The first member is formed of a ceramic material, and the second member is formed of a metal material having a thermal expansion coefficient different from that of the first member.
机译:温度补偿型天平包括:天平杆;以及摆轮,其具有多个双金属部分,该双金属部分在绕天平杆的旋转轴O的圆周方向上彼此平行地布置;以及连接多个双金属部分的连接构件。双金属零件和天平杆。双金属部分是其中第一构件和第二构件径向重叠的层状体,并且在圆周方向上的一端部是连接到连接构件的固定端,而在圆周方向上的另一端部是自由端。 。第一构件由陶瓷材料形成,第二构件由热膨胀系数与第一构件的热膨胀系数不同的金属材料形成。

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