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    • 8. 发明授权
    • Wristwatch gear and method for manufacturing wristwatch gear
    • 腕表齿轮及制造手表齿轮的方法
    • US07854546B2
    • 2010-12-21
    • US12355254
    • 2009-01-16
    • Kazuhiro TsuchiyaSatoru Masai
    • Kazuhiro TsuchiyaSatoru Masai
    • G04B31/004
    • G04D3/002G04B13/02Y10T29/49581
    • The center wheel and pinion has a center shaft provided with a center pinion that is formed from a crystalline metal, and a center tooth part composed of a metallic glass alloy that is integrally formed with the center shaft. The center shaft has a center pinion and other external peripheral regions that are formed by cutting the external periphery of a cylindrical member provided with a support hole. The external periphery of the coupling part to which the center tooth part is coupled is formed in a quadrangular shape. The center tooth part composed of a metallic glass alloy has a tooth continuously formed at the disc-shaped external periphery, and a center position that is integrally formed surrounding the entire external periphery of the quadrangular-shaped coupling part of the center shaft.
    • 中心轮小齿轮具有设置有由结晶金属形成的中心小齿轮的中心轴和由与中心轴一体形成的金属玻璃合金构成的中心齿部。 中心轴具有通过切割设置有支撑孔的圆筒形构件的外周而形成的中心小齿轮和其它外周区域。 与中心齿部分连接的联接部分的外周形成为四边形。 由金属玻璃合金构成的中心齿部在圆盘状的外周连续地形成齿,并且围绕中心轴的四边形联接部的整个外周整体成形的中心位置。