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    • 69. 发明专利
    • Temperature-compensated balance, timepiece movement, and mechanical timepiece
    • 温度补偿平衡,时间运动和机械时序
    • JP2014163784A
    • 2014-09-08
    • JP2013034703
    • 2013-02-25
    • Seiko Instruments Incセイコーインスツル株式会社
    • NAKAJIMA MASAHIRONIWA TAKASHIKAWACHIYA TAKUMAFUJIEDA HISASHIARAYA MANABU
    • G04B17/22
    • PROBLEM TO BE SOLVED: To provide a temperature-compensated balance which is capably of ensuring an amount of temperature compensation of a required inertial moment while ensuring strength, and a timepiece movement and a mechanical timepiece including the same.SOLUTION: A temperature-compensated balance includes: a balance staff turning around an axis; and a balance wheel which has a plurality of bimetal parts 50 arcuately extending along a circumferential direction of the axis of turning and connection members connecting respective bimetal parts 50 and the balance staff in a radial direction. Each bimetal part 50 is a laminate where a first member 60 and a second member 61 different by thermal expansion coefficients are laminated in the radial direction, and one end part in the circumferential direction of the bimetal part 50 is a fixed end 50A connected to the connection member, and the other end in the circumferential direction is a free end 50B. Each bimetal part 50 has a thickness gradually reduced from the side of the fixed end 50A toward the free end 50B along the radial direction.
    • 要解决的问题:提供一种温度补偿平衡,其可以确保在确保强度的同时确保所需惯性力矩的温度补偿量,以及包括该温度补偿平衡的时钟运动和机械钟表。解决方案:温度补偿平衡 包括:平衡人员转动轴; 以及平衡轮,其具有沿着转动轴的圆周方向弧形地延伸的多个双金属件50,并且在径向方向上连接各个双金属件50和平衡件的连接构件。 每个双金属部分50是沿径向层叠第一构件60和不同于热膨胀系数的第二构件61的层压体,并且双金属件50的圆周方向上的一个端部是与第二构件60和第二构件61连接的固定端50A 连接构件,而在圆周方向上的另一端是自由端50B。 每个双金属部分50具有从固定端50A侧朝向径向自由端50B逐渐减小的厚度。
    • 70. 发明专利
    • Balance, movement for watch, watch, and manufacturing method for balance
    • 平衡,运动,手表,手表和制造方法的平衡
    • JP2014142326A
    • 2014-08-07
    • JP2013178500
    • 2013-08-29
    • Seiko Instruments Incセイコーインスツル株式会社
    • NAKAJIMA MASAHIRONIWA TAKASHIKAWACHIYA TAKUMA
    • G04B17/22G04B17/06
    • PROBLEM TO BE SOLVED: To provide a balance not required to perform the re-adjustment of a rate, not reducing rotation balance and rotation performance, and capable of simply and highly accurately performing the temperature adjustment of an inertia moment.SOLUTION: A balance includes: a balance staff 41 rotatably pivoted; a balance wheel 42 whose one end is a fixed end fixed to a coupling arm 51 which is coupled to the balance staff 41 in a radial direction and the other end is a free end deformable in a radial direction. The balance wheel 42 includes: a first rim 54 located inside the radial direction and fixed to the coupling arm 51; and a second rim 55 arranged to overlap with an outer periphery of the first rim 54 and composed of a material different from that of the first rim 54 in coefficient of linear expansion. The first rim 54 and the second rim 55 are defined as a balance 40 joined by a melting part which melts mutual materials.
    • 要解决的问题:为了提供不需要进行速率重新调整的平衡,而不是降低旋转平衡和旋转性能,并且能够简单且高精度地执行惯性力矩的温度调节。解决方案:平衡包括 平衡工作人员41可旋转地枢转; 平衡轮42的一端是固定在连接臂51上的固定端,该连接臂51在径向方向上联接到平衡杆41,另一端是沿径向可变形的自由端。 摆轮42包括:位于径向方向内并固定到联接臂51的第一边缘54; 以及第二边缘55,其布置成与第一边缘54的外周边重叠,并且由不同于线膨胀系数的第一边缘54的材料构成。 第一边缘54和第二边缘55被定义为通过熔化相互材料的熔化部分连接的平衡部40。