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    • 9. 发明专利
    • Bearing unit for watch, movement, and portable watch
    • 轴承单元,用于手表,运动和便携式手表
    • JP2012083328A
    • 2012-04-26
    • JP2011050226
    • 2011-03-08
    • Seiko Instruments Incセイコーインスツル株式会社
    • HIRAOKA MASASHINAKAJIMA MASAHIRONIWA TAKASHI
    • G04B31/00
    • PROBLEM TO BE SOLVED: To provide a bearing unit for watch, a movement and a portable watch which maintain a pitch distance between spheres at a constant value and can reduce manufacturing man-hours and manufacturing costs.SOLUTION: A bearing body 181 is provided with at least three or more of spheres 183 arranged along the circumferential direction, contactably with the outer peripheral surface of a tapered part 147 and an outer ring 185 holding the spheres 183 between itself and the tapered part 147. The outer ring 185 is provided with plural support faces 187 supporting the spheres 183 each rollably at a fixed interval along the circumferential direction.
    • 要解决的问题:提供一种用于手表的轴承单元,运动和便携式手表,其将球体之间的间距距离保持在恒定值,并且可以减少制造工时和制造成本。 解决方案:轴承体181设置有沿圆周方向布置的至少三个或更多个球体183,其与锥形部分147的外周表面接触,外环185将球体183自身与 外环185设置有沿着圆周方向以固定间隔滚动地支撑球体183的多个支撑面187。 版权所有(C)2012,JPO&INPIT
    • 10. 发明专利
    • Bearing unit for watch, movement, and portable watch
    • 轴承单元,用于手表,运动和便携式手表
    • JP2011080879A
    • 2011-04-21
    • JP2009233804
    • 2009-10-07
    • Seiko Instruments Incセイコーインスツル株式会社
    • NAKAJIMA MASAHIROHIRAOKA MASASHINIWA TAKASHI
    • G04B31/00G04B17/06
    • PROBLEM TO BE SOLVED: To provide a bearing unit for a watch, a movement, and a portable watch, whic improve a timing accuracy. SOLUTION: The bearing unit for the watch is equipped with: a shaft body 143 turning around a shaft; and a bearing 180 disposed at an end of the shaft body and rotatably supporting the shaft body. A tapered section 183 is formed at a nose of the shaft body. The bearing contains: a plurality of spheres 181 disposed along a circumferential direction of the shaft body, contactably with the tapered section; an outer ring section 182 having an annular section 184 rollably holding the spheres; and a frame body 166 containing the outer ring section and supported and secured by a support member 167. The tapered section comes into point contact with the spheres, and the spheres come into point contact with the annular section. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了提供用于手表,运动和便携式手表的轴承单元,提高定时精度。

      解决方案:手表的轴承单元配备有:绕轴转动的轴体143; 以及设置在轴体的端部并可旋转地支撑轴体的轴承180。 锥形部分183形成在轴体的鼻部处。 所述轴承包括:沿着所述轴体的圆周方向设置的与所述锥形部接触的多个球体181; 具有可滚动地保持球体的环形部分184的外圈部分182; 以及容纳外圈部并且由支撑部件167支承并固定的框架体16.锥形部与球体进行点接触,球体与环状部分形成点接触。 版权所有(C)2011,JPO&INPIT