公开(公告)号：US20150029827A1

公开(公告)日：2015-01-29

申请号：US14338772

申请日：2014-07-23

Applicant: SEIKO INSTRUMENTS INC.

Inventor： Masayuki KODA ,  Shigeo SUZUKI ,  Hisashi FUJIEDA

IPC: G04B15/08 ,  G04B15/14

CPC classification number: G04B15/08 ,  G04B15/14

Abstract: An object is to provide an escapement which can improve energy transmission efficiency, a timepiece movement including the escapement, and a timepiece including the timepiece movement. There is provided an escapement 1 including an escape wheel 11, a double roller 53 that is disposed in a balance 5 pivotally moving around a balance staff 51, and a pallet fork 12 that can pivotally move around a pallet staff 33. The double roller 53 includes a first impulse pin 57 which comes into contact with the pallet fork 12 in response to a pivotal movement of the double roller 53 and causes the pallet fork 12 to pivotally move around the pallet staff 33, and a second impulse pin 58 which can come into contact with tooth portion 23 of the escape wheel 11. The pallet fork 12 includes two pallets of an entry pallet 45 and an exit pallet 38.

Abstract translation: 本发明的目的是提供一种能够提高能量传递效率的擒纵机构，包括擒纵机构的钟表机芯，以及包括钟表机芯的钟表。 设置有包括擒纵轮11的擒纵机构1，设置在围绕平衡人员51枢转地移动的平衡装置5中的双辊53和能够围绕货盘工作人员33枢转运动的垛叉12。双辊53 包括第一冲击销57，其响应于双辊53的枢转运动而与托盘叉12接触，并且使得托盘叉12围绕托盘工作人员33枢转运动，并且可以来到第二冲击销58 与擒纵轮11的齿部23接触。托盘叉12包括两个进入货盘45和出口托盘38的托盘。

公开(公告)号：US20140241134A1

公开(公告)日：2014-08-28

申请号：US14185131

申请日：2014-02-20

Applicant: SEIKO INSTRUMENTS INC.

Inventor： Takashi NIWA ,  Masahiro NAKAJIMA ,  Takuma KAWAUCHIYA ,  Hisashi FUJIEDA ,  Manabu SHINKE

IPC: G04B17/22 ,  G04B17/06

CPC classification number: G04B17/222 ,  G04B17/063 ,  G04B17/20 ,  G04B17/22 ,  Y10T29/49579

Abstract: 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.

Abstract translation: 温度补偿型平衡包括平衡人员和平衡轮，所述平衡轮具有多个双金属部分，所述双金属部分围绕所述平衡工作人员的旋转轴O在周向方向彼此平行地设置，并且连接构件连接所述多个 双金属部分和平衡工作人员。 双金属部分是第一部件和第二部件径向重合的层叠体，圆周方向的一个端部是连接到连接部件的固定端部，另一个端部部分在圆周方向上是自由端 。 第一构件由陶瓷材料形成，第二构件由具有与第一构件的热膨胀系数不同的热膨胀系数的金属材料形成。