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1. 发明授权

US07025169B2 Electric power steering apparatus 失效
公开(公告)号：US07025169B2
公开(公告)日：2006-04-11
申请号：US11125173
申请日：2005-05-10
申请人： Osamu Tatewaki , Hiroshi Eda , Toshihiro Fukuda , Osamu Saito , Jun Okada
发明人： Osamu Tatewaki , Hiroshi Eda , Toshihiro Fukuda , Osamu Saito , Jun Okada
IPC分类号： B62D5/04
CPC分类号： F16H57/0497 , B62D5/0424 , B62D5/0448 , F16H25/24 , F16H2025/2445 , Y10T74/19744
摘要： An electric power steering apparatus comprises a ball nut rotationally driven by an electric motor through a gear train and having a female thread groove formed in the inner periphery thereof, a rack shaft disposed through the ball nut on the axis thereof and having a male thread groove so formed in its outer periphery as to face to the female thread groove, a ball screw mechanism having a number of circulation balls interposed between the female thread groove and the male thread groove, and a housing for holding the ball nut rotatably through the bearing. An elastic member is interposed between the housing and the ball nut in order to permit the ball nut to make a predetermined displacement.

2. 发明授权

US06860360B2 Electric power steering apparatus 有权
标题翻译：电动助力转向装置
公开(公告)号：US06860360B2
公开(公告)日：2005-03-01
申请号：US10641108
申请日：2003-08-15
申请人： Osamu Tatewaki , Hiroshi Eda , Toshihiro Fukuda , Osamu Saito , Jun Okada
发明人： Osamu Tatewaki , Hiroshi Eda , Toshihiro Fukuda , Osamu Saito , Jun Okada
IPC分类号： B62D5/04 , H02K5/24
CPC分类号： H02K5/24 , B62D5/0424
摘要： An electric power steering apparatus includes a power assist mechanism encased by a steering gear case, an electric motor coupled to the power assist mechanism, a power transmission mechanism, coupled to the electric motor and the power assist mechanism, and a protection cover, separate from the electric motor casing and attached thereto, for covering the electric motor.
摘要翻译：电动助力转向装置包括由转向齿轮箱包围的动力辅助机构，耦合到动力辅助机构的电动机，耦合到电动机和动力辅助机构的动力传递机构，以及保护罩，电动机壳体并附接到其上，用于覆盖电动机。

3. 发明授权

US06659219B2 Electric power steering device 有权
标题翻译：电动助力转向装置
公开(公告)号：US06659219B2
公开(公告)日：2003-12-09
申请号：US10038802
申请日：2001-12-31
申请人： Jun Okada , Toshihiro Fukuda , Hiroshi Eda
发明人： Jun Okada , Toshihiro Fukuda , Hiroshi Eda
IPC分类号： B62D504
CPC分类号： B62D5/0427 , B62D5/0448 , F16C27/066 , F16H25/20 , F16H25/2204 , F16H2025/2075 , H02K7/06
摘要： An easy-to-assemble electric power steering device, in which an approximately cylindrical housing is divided at about the central part into a first chamber and a second chamber. The first chamber is for housing a motor for assisting the steering force. A stator of the motor is inserted at one end of the housing and fixed. The second chamber is for housing a rack shaft assembly which comprises a rack shaft connected with the steering shaft and a ball screw mechanism. The rack shaft assembly is inserted at the other end of the housing, to thereby spline a rotor of the motor for assisting the steering force with a nut of the ball screw mechanism. A bearing supporting the nut of the ball screw mechanism is axially movably held in the inner wall of the second chamber. The rack shaft is arranged through the first and second chambers of the housing.
摘要翻译：一种易于组装的电动助力转向装置，其中近似圆柱形的壳体在中心部分分成第一腔室和第二腔室。第一个室用于容纳用于辅助转向力的电动机。电机的定子插入壳体的一端并固定。第二室用于容纳齿条轴组件，其包括与转向轴连接的齿条轴和滚珠丝杠机构。齿条轴组件插入壳体的另一端，从而通过滚珠丝杠机构的螺母对电动机的转子进行花键以辅助转向力。支撑滚珠丝杠机构的螺母的轴承可轴向移动地保持在第二室的内壁中。齿条轴布置成通过壳体的第一和第二腔室。

4. 发明授权

US07284634B2 Electric power steering apparatus 有权
标题翻译：电动助力转向装置
公开(公告)号：US07284634B2
公开(公告)日：2007-10-23
申请号：US10119699
申请日：2002-04-11
申请人： Osamu Tatewaki , Hiroshi Eda , Toshihiro Fukuda , Jun Okada
发明人： Osamu Tatewaki , Hiroshi Eda , Toshihiro Fukuda , Jun Okada
IPC分类号： B62D5/04 , F16H55/00 , F16H33/00
CPC分类号： F16H55/18 , B62D5/0424 , B62D5/0448 , H01R24/62 , Y10T74/19 , Y10T74/19977
摘要： An electric power steering apparatus comprises a rotary shaft member connected to a steering wheel, an elongate member, a rack-and-pinion mechanism, a ball screw mechanism constructed of a screw member, a nut member and a multiplicity of balls interposed between the screw member and the nut member, an electric motor unit, and a meshing type rotation decelerating mechanism including a plurality of meshing components. The meshing components include an output shaft pinion gear, a deceleration gear, and an intermediate gear, interposed between the output shaft pinion gear and the deceleration gear, having a contact portion composed of a synthetic resin.
摘要翻译：电动助力转向装置包括连接到方向盘的旋转轴构件，细长构件，齿条和小齿轮机构，由螺钉构件，螺母构件和插入在螺钉之间的多个球构成的滚珠丝杠机构构件和螺母构件，电动机单元和包括多个啮合部件的啮合式旋转减速机构。啮合部件包括输出轴小齿轮，减速齿轮和中间齿轮，介于输出轴小齿轮和减速齿轮之间，具有由合成树脂构成的接触部分。

5. 发明授权

US06915874B2 Electric power steering apparatus 有权
标题翻译：电动助力转向装置
公开(公告)号：US06915874B2
公开(公告)日：2005-07-12
申请号：US10641107
申请日：2003-08-15
申请人： Osamu Tatewaki , Hiroshi Eda , Toshihiro Fukuda , Jun Okada
发明人： Osamu Tatewaki , Hiroshi Eda , Toshihiro Fukuda , Jun Okada
IPC分类号： B62D5/04 , H02K5/24
CPC分类号： H02K5/24 , B62D5/0424
摘要： An electric power steering apparatus comprises an electric motor having a motor housing, a ball screw mechanism connected to the electric motor through power transmission means and used for driving a rack shaft, and a steering gear case encasing the rack shaft and the ball screw mechanism. The electric motor is supported by at least two supporting portions with respect to the steering gear case, and is supported by at lest one of the two supporting portions through an elastic member.
摘要翻译：一种电动助力转向装置，包括具有马达壳体的电动机，通过动力传递装置连接到电动机并用于驱动齿条轴的滚珠丝杠机构，以及包围齿条轴和滚珠丝杠机构的转向齿轮箱。电动机由至少两个相对于转向齿轮箱的支撑部分支撑，并且由两个支撑部分中的至少一个通过弹性部件支撑。

6. 发明授权

US06702060B2 Electric power steering apparatus 有权
标题翻译：电动助力转向装置
公开(公告)号：US06702060B2
公开(公告)日：2004-03-09
申请号：US10178707
申请日：2002-06-25
申请人： Osamu Tatewaki , Hiroshi Eda , Toshihiro Fukuda , Osamu Saito , Jun Okada
发明人： Osamu Tatewaki , Hiroshi Eda , Toshihiro Fukuda , Osamu Saito , Jun Okada
IPC分类号： B62D504
CPC分类号： F16H57/0497 , B62D5/0424 , B62D5/0448 , F16H25/24 , F16H2025/2445 , Y10T74/19744
摘要： An electric power steering apparatus comprises a ball nut rotationally driven by an electric motor through a gear train and having a female thread groove formed in the inner periphery thereof, a rack shaft disposed through the ball nut on the axis thereof and having a male thread groove so formed in its outer periphery as to face to the female thread groove, a ball screw mechanism having a number of circulation balls interposed between the female thread groove and the male thread groove, and a housing for holding the ball nut rotatably through the bearing. An elastic member is interposed between the housing and the ball nut in order to permit the ball nut to make a predetermined displacement.
摘要翻译：一种电动助力转向装置，包括由电动机通过齿轮系旋转驱动并具有形成在其内周中的内螺纹槽的滚珠螺母，齿条轴通过滚珠螺母轴向设置，并具有阳螺纹槽在其外周面形成为面向阴螺纹槽的滚珠丝杠机构，具有插入在内螺纹槽和外螺纹槽之间的多个循环滚珠的滚珠丝杠机构和用于通过轴承可旋转地保持滚珠螺母的壳体。弹性构件插入在壳体和滚珠螺母之间，以便允许滚珠螺母进行预定位移。

7. 发明申请

US20050205342A1 Electric power steering apparatus 失效
公开(公告)号：US20050205342A1
公开(公告)日：2005-09-22
申请号：US11125173
申请日：2005-05-10
申请人： Osamu Tatewaki , Hiroshi Eda , Toshihiro Fukuda , Osamu Saito , Jun Okada
发明人： Osamu Tatewaki , Hiroshi Eda , Toshihiro Fukuda , Osamu Saito , Jun Okada
IPC分类号： B62D5/04 , F16H25/24
CPC分类号： F16H57/0497 , B62D5/0424 , B62D5/0448 , F16H25/24 , F16H2025/2445 , Y10T74/19744
摘要： An electric power steering apparatus comprises a ball nut rotationally driven by an electric motor through a gear train and having a female thread groove formed in the inner periphery thereof, a rack shaft disposed through the ball nut on the axis thereof and having a male thread groove so formed in its outer periphery as to face to the female thread groove, a ball screw mechanism having a number of circulation balls interposed between the female thread groove and the male thread groove, and a housing for holding the ball nut rotatably through the bearing. An elastic member is interposed between the housing and the ball nut in order to permit the ball nut to make a predetermined displacement.

8. 发明授权

US06662897B2 Electric power steering apparatus 有权
公开(公告)号：US06662897B2
公开(公告)日：2003-12-16
申请号：US10166175
申请日：2002-06-11
申请人： Osamu Tatewaki , Hiroshi Eda , Toshihiro Fukuda , Jun Okada
发明人： Osamu Tatewaki , Hiroshi Eda , Toshihiro Fukuda , Jun Okada
IPC分类号： B62D504
CPC分类号： H02K5/24 , B62D5/0424
摘要： An electric power steering apparatus comprises an electric motor having a motor housing, a ball screw mechanism connected to the electric motor through power transmission means and used for driving a rack shaft, and a steering gear case encasing the rack shaft and the ball screw mechanism. The electric motor is supported by at least two supporting portions with respect to the steering gear case, and is supported by at lest one of the two supporting portions through an elastic member.

9. 发明授权

US06938723B2 Electric power steering apparatus 有权
标题翻译：电动助力转向装置
公开(公告)号：US06938723B2
公开(公告)日：2005-09-06
申请号：US10767613
申请日：2004-01-30
申请人： Osamu Tatewaki , Hiroshi Eda , Toshihiro Fukuda , Jun Okada
发明人： Osamu Tatewaki , Hiroshi Eda , Toshihiro Fukuda , Jun Okada
IPC分类号： B62D5/04 , F16H25/24
CPC分类号： F16H57/0497 , B62D5/0424 , B62D5/0448 , F16H25/24 , F16H2025/2445 , Y10T74/19744
摘要： An electric power steering apparatus comprises a ball nut rotationally driven by an electric motor through a gear train and having a female thread groove formed in the inner periphery thereof, a rack shaft disposed through the ball nut on the axis thereof and having a male thread groove so formed in its outer periphery as to face to the female thread groove, a ball screw mechanism having a number of circulation balls interposed between the female thread groove and the male thread groove, and a housing for holding the ball nut rotatably through the bearing. An elastic member is interposed between the housing and the ball nut in order to permit the ball nut to make a predetermined displacement.
摘要翻译：一种电动助力转向装置，包括由电动机通过齿轮系旋转驱动并具有形成在其内周中的内螺纹槽的滚珠螺母，齿条轴通过滚珠螺母轴向设置，并具有阳螺纹槽在其外周面形成为面向阴螺纹槽的滚珠丝杠机构，具有插入在内螺纹槽和外螺纹槽之间的多个循环滚珠的滚珠丝杠机构和用于通过轴承可旋转地保持滚珠螺母的壳体。弹性构件插入在壳体和滚珠螺母之间，以便允许滚珠螺母进行预定位移。

10. 发明授权

US07240763B2 Electric power steering apparatus 有权
标题翻译：电动助力转向装置
公开(公告)号：US07240763B2
公开(公告)日：2007-07-10
申请号：US10767611
申请日：2004-01-30
申请人： Osamu Tatewaki , Hiroshi Eda , Toshihiro Fukuda , Osamu Saito , Jun Okada
发明人： Osamu Tatewaki , Hiroshi Eda , Toshihiro Fukuda , Osamu Saito , Jun Okada
IPC分类号： B62D5/04
CPC分类号： F16H57/0497 , B62D5/0424 , B62D5/0448 , F16H25/24 , F16H2025/2445 , Y10T74/19744
摘要： An electric power steering apparatus comprises a ball nut rotationally driven by an electric motor through a gear train and having a female thread groove formed in the inner periphery thereof, a rack shaft disposed through the ball nut on the axis thereof and having a male thread groove so formed in its outer periphery as to face to the female thread groove, a ball screw mechanism having a number of circulation balls interposed between the female thread groove and the male thread groove, and a housing for holding the ball nut rotatably through the bearing. An elastic member is interposed between the housing and the ball nut in order to permit the ball nut to make a predetermined displacement.
摘要翻译：一种电动助力转向装置，包括由电动机通过齿轮系旋转驱动并具有形成在其内周中的内螺纹槽的滚珠螺母，齿条轴通过滚珠螺母轴向设置，并具有阳螺纹槽在其外周面形成为面向阴螺纹槽的滚珠丝杠机构，具有插入在内螺纹槽和外螺纹槽之间的多个循环滚珠的滚珠丝杠机构和用于通过轴承可旋转地保持滚珠螺母的壳体。弹性构件插入在壳体和滚珠螺母之间，以便允许滚珠螺母进行预定位移。

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