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    • 10. 发明专利
    • Power steering device
    • 动力转向装置
    • JP2014125113A
    • 2014-07-07
    • JP2012283475
    • 2012-12-26
    • Kayaba Ind Co Ltdカヤバ工業株式会社
    • YOSHIKAWA SANEYOSHISHIMODA KATSUMI
    • B62D5/04F16C27/06F16C33/76F16H1/16
    • B62D5/0403B62D3/12B62D5/04B62D5/0409B62D5/0412F16C27/04F16C27/06F16C27/066F16C33/76F16C33/768F16C2326/24F16H1/16F16H55/24F16H57/039F16H57/12F16H2057/0213F16H2057/127
    • PROBLEM TO BE SOLVED: To absorb a load exerted on a bearing through a worm shaft and a worm wheel while securing waterproofness between a gear case and a lid.SOLUTION: A power steering device 100 assists a steering force that is applied to a steering wheel by a driver and includes: a worm shaft 2 which rotates in conjunction with driving of an electric motor 7; a worm wheel 1 which engages with the worm shaft 2 and is used for transmitting a rotation force of the electric motor 7 to a rack shaft; a bearing 11 which rotatably supports the tip side of the worm shaft 2; a gear case 3 which houses the worm shaft 2; a lid 6 which seals an opening 3b formed at a tip of the gear case 3; a first elastic part 41 which is disposed between the gear case 3 and the lid 6 being compressed; and a second elastic part 42 which is disposed between an inner peripheral surface 33a of the gear case 3 and an outer peripheral surface 11a of the bearing 11. The first elastic part 41 and the second elastic part 42 are integrally formed through a thin part 70.
    • 要解决的问题:通过蜗轮轴和蜗轮吸收施加在轴承上的负载,同时确保齿轮箱和盖子之间的防水性。解决方案:动力转向装置100辅助施加到方向盘的转向力 驱动器包括:与电动机7的驱动一起旋转的蜗杆轴2; 蜗轮1,其与蜗杆轴2接合并用于将电动机7的旋转力传递到齿条轴; 可旋转地支撑蜗杆2的前端侧的轴承11; 容纳蜗杆轴2的齿轮箱3; 密封形成在齿轮箱3的前端的开口3b的盖6; 设置在齿轮箱3和盖6之间的第一弹性部41被压缩; 以及设置在齿轮箱3的内周面33a和轴承11的外周面11a之间的第二弹性部42.第一弹性部41和第二弹性部42通过薄部70 。