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公开(公告)号：US09302698B2
公开(公告)日：2016-04-05
申请号：US14551630
申请日：2014-11-24
Applicant: Showa Corporation
Inventor： Satoshi Enomoto
Abstract: A steering apparatus includes a rack shaft moving in a vehicle width direction for steering steered wheels, a rack end in a moving side, which is provided in the rack shaft and integrally moving with the rack shaft, a housing body in a fixed side, which does not move in the vehicle width direction and controls the movement of the rack shaft by collision from the rack end to the housing body and a shock absorbing member provided between the rack end and the housing body to absorb a shock from the rack end to the housing body, in which the shock absorbing member includes a low-spring rate portion and a high-spring rate portion having a higher spring rate than that of the low-spring rate portion in the vehicle width direction.
Abstract translation: 一种转向装置，包括：转向转向轮的车宽方向的齿条轴;设置在齿条轴上并与齿条轴整体移动的移动侧的齿条端;固定侧的壳体; 不会在车宽方向上移动，并且通过碰撞从齿条端到壳体而控制齿条轴的移动，以及设置在齿条端部和壳体之间的减震构件，以吸收从齿条端到 其中所述减震构件包括弹簧比低于所述低弹簧部分在车辆宽度方向上的弹簧刚度的低弹簧部分和弹簧弹簧部分。
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公开(公告)号：US09783226B2
公开(公告)日：2017-10-10
申请号：US15078225
申请日：2016-03-23
Applicant: Showa Corporation
Inventor： Satoshi Enomoto
Abstract: Disclosed is a motor-driven power steering apparatus including: a rack shaft that is operated by steering of a steering unit; a gear housing that accommodates the rack shaft; a tip-side opening which is formed in the gear housing, and through which an inside of the gear housing communicates with an outside of the gear housing; a gas ventilation valve that covers the tip-side opening while ensuring ventilation, through the gas ventilation valve, of a gas via the tip-side opening; and a diaphragm that is provided further inside of the gear housing than the gas ventilation valve, suppresses infiltration of a gas, which passes through the gas ventilation valve, into the gear housing, and is deformed according to a difference between an internal pressure and an external pressure of the gear housing.
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公开(公告)号：US11685425B2
公开(公告)日：2023-06-27
申请号：US17061034
申请日：2020-10-01
Applicant: SHOWA CORPORATION
Inventor： Satoshi Enomoto , Takayuki Tetsuka
CPC classification number: B62D5/0403 , B62D3/12 , B62D5/0424 , F16H7/02
Abstract: An electric power steering device includes: an electric motor; a rack shaft configured to move axially; a conversion unit configured to convert rotational driving force of the moto into movement of the rack shaft; a first housing configured to cover a part of an outer surface of the rack shaft and including a first leg portion fixed to a vehicle; a second housing configured to cover a part of the outer surface of the rack shaft and including a fourth connecting portion covering the conversion unit and a second leg portion fixed to the vehicle; and an intermediate housing disposed between the first and second housings and configured to cover a part of the outer surface of the rack shaft 3 and including a motor support portion supporting the motor.
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公开(公告)号：US09821834B2
公开(公告)日：2017-11-21
申请号：US15078225
申请日：2016-03-23
Applicant: Showa Corporation
Inventor： Satoshi Enomoto
CPC classification number: B62D5/0403 , B62D3/12
Abstract: Disclosed is a motor-driven power steering apparatus including: a rack shaft that is operated by steering of a steering unit; a gear housing that accommodates the rack shaft; a tip-side opening which is formed in the gear housing, and through which an inside of the gear housing communicates with an outside of the gear housing; a gas ventilation valve that covers the tip-side opening while ensuring ventilation, through the gas ventilation valve, of a gas via the tip-side opening; and a diaphragm that is provided further inside of the gear housing than the gas ventilation valve, suppresses infiltration of a gas, which passes through the gas ventilation valve, into the gear housing, and is deformed according to a difference between an internal pressure and an external pressure of the gear housing.
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