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    • 82. 发明专利
    • Vibration generator
    • 振动发电机
    • JP2009195799A
    • 2009-09-03
    • JP2008038735
    • 2008-02-20
    • Mitsumi Electric Co Ltdミツミ電機株式会社
    • KAGAMI MASAHARUSAKAGUCHI KAZUTAKATAKAHASHI YUUKIINAMOTO SHIGENORI
    • B06B1/04H02K33/02
    • B06B1/045H02K7/06H02K33/02
    • PROBLEM TO BE SOLVED: To provide a vibration generator suitable for downsizing and thinning and facilitation of manufacture and having a spring assembly consisting of a spring and a movable element and allowing easy modification of frequency characteristics of the vibration system.
      SOLUTION: The vibration generator 1 has the combined spring. The combined spring has a main spring 6 and an auxiliary spring 9 composed of a material different from that of the main spring. The main spring comprises an outer peripheral ring section 6a fixed to enclosures 8a and 8b, an inner peripheral ring section 6b arranged inside, at a certain interval, in the radial direction with respect to the outer peripheral ring section and fixed to the outer periphery 7b of the yoke, a fixed-end-side end 6d protruding from the inner periphery of the outer peripheral ring section and inside in the radial direction, a movable-end-side end 6e protruding from the outer periphery of the inner peripheral ring section and outside in the radial direction and an arm section extending from the fixed-end-side end in a certain circumferential direction around the central axis C and connected to the movable-end-side end. The auxiliary spring is stretched between the fixed-end-side end and the movable-end-side end adjacent to the fixed-end-side end in the circumferential direction opposite to the certain circumferential direction around the central axis C or between the inner peripheral ring section and the arm section.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种适用于制造尺寸减小和减薄和便利化的振动发生器,并且具有由弹簧和可移动元件组成的弹簧组件,并且允许容易地改变振动系统的频率特性。 解决方案:振动发生器1具有组合的弹簧。 组合弹簧具有由与主弹簧不同的材料构成的主弹簧6和辅助弹簧9。 主弹簧包括固定到外壳8a和8b的外周环部分6a,内周环部分6b,其相对于外周环部分在径向方向上以一定间隔设置在内部并固定到外周边7b 从外周环部的内周向径向内侧突出的固定端侧端部6d,从内周环部的外周突出的可动端侧端部6e和 在径向方向外侧的臂部以及从中心轴线C的一定圆周方向从固定端侧端部延伸并与可动端侧端部连接的臂部。 辅助弹簧在与固定端侧端部相邻的固定端侧端部与沿着中心轴线C的一定圆周方向相反的圆周方向的可动端侧端部之间或在内周侧 环段和臂部分。 版权所有(C)2009,JPO&INPIT