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1. 发明授权

US06470993B1 Electric power steering apparatus 失效
标题翻译：电动助力转向装置
公开(公告)号：US06470993B1
公开(公告)日：2002-10-29
申请号：US09187773
申请日：1998-11-06
申请人： Akinobu Matsuda , Masayuki Watanabe , Terukazu Nakajima , Kaname Joshita
发明人： Akinobu Matsuda , Masayuki Watanabe , Terukazu Nakajima , Kaname Joshita
IPC分类号： B62D504
CPC分类号： B62D3/126 , B62D5/0409 , B62D5/043 , B62D5/0442 , Y10T74/19633 , Y10T74/1967 , Y10T74/19949
摘要： An electronic power steering apparatus according to the present invention uses hypoid gears having a larger gear on a steering assisting motor side and a smaller gear on a pinion shaft side as a transmission device for transmitting a rotational force of the motor to the pinion shaft or a column shaft, thereby reducing a shaft-to-shaft distance required between the motor and the pinion shaft. Further, rack teeth, which have a pressure angle that reduces toward both of the ends of a moving stroke of a rack shaft, are formed on the rack shaft that engages the pinion gear so that an insufficient steering assisting force is supplemented at the stroke ends, that is, at a large steering range; thus, it is possible to miniaturize the motor. Therefore, it becomes possible to reduce a space occupied by the motor on the periphery of the column shaft or the pinion shaft, and consequently to allow easy installation inside the automobile room or the engine room.
摘要翻译：根据本发明的电动助力转向装置使用在转向辅助电动机侧具有较大齿轮的准双曲面齿轮和小齿轮轴侧的较小齿轮作为将电动机的旋转力传递到小齿轮轴的传动装置或柱轴，从而减小电机和小齿轮轴之间所需的轴与轴之间的距离。此外，具有朝向齿条轴的移动行程的两端减小的压力角的齿条齿形成在与小齿轮接合的齿条轴上，使得在行程末端补充不足的转向辅助力，即在较大的转向范围内; 因此，可以使电动机小型化。因此，可以减小列轴或小齿轮轴的周边上的电动机所占的空间，从而容易地安装在汽车室或发动机室内。

2. 发明授权

US4890683A Power steering apparatus 失效
标题翻译：动力转向装置
公开(公告)号：US4890683A
公开(公告)日：1990-01-02
申请号：US182124
申请日：1988-04-15
申请人： Akinobu Matsuda , Masamitsu Sakai
发明人： Akinobu Matsuda , Masamitsu Sakai
IPC分类号： B62D3/12 , B62D5/04 , B62D5/22
CPC分类号： B62D3/126 , B62D5/0409 , Y10T74/1967
摘要： A power steering apparatus in which a housing to contain a torque sensor for sensing seering torque, a small-sized motor for assisting steering, and a driving device for transmitting driving force of the motor to the steering shaft is made small-sized and disposed on the middle part of the steering shaft in the cab of the car, and, further, pressure angles of rack teeth engaging with a pinion shaft connected to the steering shaft reduce with the advance from the center of the toothed part of the rack to the end thereof so that steering assisting power is increased with the increase in the degree of steering angle.
摘要翻译：一种动力转向装置，其中容纳用于感测检查转矩的转矩传感器的壳体，用于辅助转向的小型电动机和用于将电动机的驱动力传递到转向轴的驱动装置被制成小尺寸并且设置在轿厢驾驶室中的转向轴的中间部分，并且进一步地，与连接到转向轴的小齿轮轴啮合的齿条齿的压力角随着从齿条的齿形部分的中心向前延伸而减小使得转向辅助动力随着转向角度的增加而增加。

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