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1. 发明申请

US20070209864A1 Electric Power Steering Apparatus 审中-公开
标题翻译：电动转向装置
公开(公告)号：US20070209864A1
公开(公告)日：2007-09-13
申请号：US11547648
申请日：2005-04-05
申请人： Toru Segawa , Hiroshi Eda , Kazuo Chikaraishi , Kenji Someya , Toshiyuki Onizuka
发明人： Toru Segawa , Hiroshi Eda , Kazuo Chikaraishi , Kenji Someya , Toshiyuki Onizuka
IPC分类号： B62D5/04
CPC分类号： B62D5/0409 , B62D5/0403
摘要： In an electric power steering apparatus in which steering torque applied on a steering wheel is detected by a torque sensor, and a steering assist torque is generated by an electric motor in accordance with the detected steering torque and transmitted to an output shaft of a steering mechanism with a speed reduced by a worm gear mechanism, the gear meshing position in the worm gear mechanism and the position of the torque sensor are arranged to be substantially coincide with each other with respect to the axial direction of the output shaft. Alternatively, a worm wheel of the worm gear mechanism is directly supported on a housing in a rotatable manner by means of a bearing. A steering shaft and an input shaft of a power assist section are fixedly connected in close contact attained by plastic deformation.
摘要翻译：在通过转矩传感器检测到施加在方向盘上的转向转矩的电动助力转向装置中，并且通过电动机根据检测到的转向转矩产生转向辅助转矩并将其传递到转向机构的输出轴通过蜗轮机构降低速度，蜗轮机构中的齿轮啮合位置和扭矩传感器的位置被布置成相对于输出轴的轴向彼此大致重合。或者，蜗轮机构的蜗轮通过轴承以可旋转的方式直接支撑在壳体上。动力辅助部分的转向轴和输入轴通过塑性变形紧密接触而固定连接。

2. 发明申请

US20060086559A1 Steering device 审中-公开
标题翻译：转向装置
公开(公告)号：US20060086559A1
公开(公告)日：2006-04-27
申请号：US11256333
申请日：2005-10-21
申请人： Toru Segawa , Hiroshi Eda , Kazuo Chikaraishi
发明人： Toru Segawa , Hiroshi Eda , Kazuo Chikaraishi
IPC分类号： B62D5/04
CPC分类号： F16D3/66 , B62D1/16 , B62D1/20 , F16D3/12 , F16D3/68
摘要： A steering device comprises an upper steering shaft, a lower steering shaft for transmitting rotations of the upper steering shaft to a steering gear, an engaging projection provided on a fitted-in portion of the upper shaft, an engaging groove provided on a fitted-in portion of the lower shaft for engaging with the engaging projection with a clearance of a rotational direction and a rotational direction biasing member, provided on the fitted-in portion, for giving a biasing force of a rotational direction between the upper and lower steering shafts.
摘要翻译：转向装置包括上转向轴，用于将上转向轴的转动传递到舵机的下转向轴，设置在上轴的装配部分上的接合突起，设置在装配的接合槽所述下轴的与所述接合突起相啮合的部分与设置在所述装配部分上的旋转方向的间隙和旋转方向偏置构件接合，以在所述上转向轴和所述下转向轴之间产生旋转方向的偏置力。

3. 发明授权

US07360467B2 Worm reduction gear and electric power steering apparatus 有权
标题翻译：蜗轮减速装置和电动助力转向装置
公开(公告)号：US07360467B2
公开(公告)日：2008-04-22
申请号：US10540625
申请日：2004-06-24
申请人： Toru Segawa , Kazuo Chikaraishi
发明人： Toru Segawa , Kazuo Chikaraishi
IPC分类号： F16H55/02
CPC分类号： F16H57/021 , B62D5/0409 , F16C25/083 , F16C2361/61 , F16C2380/27 , F16H1/16 , F16H55/24 , F16H2057/0213 , F16H2057/0222 , H02K7/081 , H02K7/1166 , Y10T74/19828
摘要： A torsion coil spring 30 applies an elastic force to a worm shaft 29 in a direction towards a worm wheel, via a pre-load pad 70. The pre-load pad 70 restricts displacement in relation to the widthwise direction, by one side face portion of a holder 61 fixed to a gear housing 22. Due to the elastic deformation of the pre-load pad 70 itself based on the elastic force of the torsion coil spring 30, the side face of the pre-load pad 70 is abutted against the one side face portion of the holder 61, so that a gap between the pre-load pad 70 and the one side face portion is minimized. As a result, the occurrence of a teeth fitting noise in the worm reduction gear 16 is suppressed.
摘要翻译：扭力螺旋弹簧30经由预加载垫70向蜗轮轴29朝向蜗轮的方向施加弹性力。预加载垫70通过固定在齿轮箱22上的保持架61的一个侧面部来限制相对于宽度方向的位移。由于预压垫70自身基于扭力螺旋弹簧30的弹力而弹性变形，所以预加载垫70的侧面与支架61的一个侧面部抵接，预加载垫70和一个侧面部之间的间隙最小化。结果，抑制了蜗轮减速装置16中的齿配合噪声的发生。

4. 发明申请

US20060117889A1 Worm speed reducer and electric power steering device 有权
标题翻译：蜗轮减速机和电动助力转向装置
公开(公告)号：US20060117889A1
公开(公告)日：2006-06-08
申请号：US10540625
申请日：2004-06-24
申请人： Toru Segawa , Kazuo Chikaraishi
发明人： Toru Segawa , Kazuo Chikaraishi
IPC分类号： F16H35/00
CPC分类号： F16H57/021 , B62D5/0409 , F16C25/083 , F16C2361/61 , F16C2380/27 , F16H1/16 , F16H55/24 , F16H2057/0213 , F16H2057/0222 , H02K7/081 , H02K7/1166 , Y10T74/19828
摘要： A torsion coil spring 30 applies an elastic force to a worm shaft 29 in a direction towards a worm wheel, via a pre-load pad 70. The pre-load pad 70 restricts displacement in relation to the widthwise direction, by one side face portion of a holder 61 fixed to a gear housing 22. Due to the elastic deformation of the pre-load pad 70 itself based on the elastic force of the torsion coil spring 30, the side face of the pre-load pad 70 is abutted against the one side face portion of the holder 61, so that a gap between the pre-load pad 70 and the one side face portion is minimized. As a result, the occurrence of a teeth fitting noise in the worm reduction gear 16 is suppressed.
摘要翻译：扭力螺旋弹簧30经由预加载垫70向蜗轮轴29朝向蜗轮的方向施加弹性力。预加载垫70通过固定在齿轮箱22上的保持架61的一个侧面部来限制相对于宽度方向的位移。由于预压垫70自身基于扭力螺旋弹簧30的弹力而弹性变形，所以预加载垫70的侧面与支架61的一个侧面部抵接，预加载垫70和一个侧面部之间的间隙最小化。结果，抑制了蜗轮减速装置16中的齿配合噪声的发生。

5. 发明授权

US07455148B2 Worm reduction gear and electric power steering apparatus 有权
公开(公告)号：US07455148B2
公开(公告)日：2008-11-25
申请号：US11798164
申请日：2007-05-10
申请人： Toru Segawa , Kazuo Chikaraishi
发明人： Toru Segawa , Kazuo Chikaraishi
IPC分类号： B62D5/04
CPC分类号： F16H57/021 , B62D5/0409 , F16C25/083 , F16C2361/61 , F16C2380/27 , F16H1/16 , F16H55/24 , F16H2057/0213 , F16H2057/0222 , H02K7/081 , H02K7/1166 , Y10T74/19828
摘要： A torsion coil spring 30 applies an elastic force to a worm shaft 29 in a direction towards a worm wheel, via a pre-load pad 70. The pre-load pad 70 restricts displacement in relation to the widthwise direction, by one side face portion of a holder 61 fixed to a gear housing 22. Due to the elastic deformation of the pre-load pad 70 itself based on the elastic force of the torsion coil spring 30, the side face of the pre-load pad 70 is abutted against the one side face portion of the holder 61, so that a gap between the pre-load pad 70 and the one side face portion is minimized. As a result, the occurrence of a teeth fitting noise in the worm reduction gear 16 is suppressed.

6. 发明授权

US07455149B2 Worm reduction gear and electric power steering apparatus 有权
公开(公告)号：US07455149B2
公开(公告)日：2008-11-25
申请号：US11798166
申请日：2007-05-10
申请人： Toru Segawa , Kazuo Chikaraishi
发明人： Toru Segawa , Kazuo Chikaraishi
IPC分类号： B62D5/04
CPC分类号： F16H57/021 , B62D5/0409 , F16C25/083 , F16C2361/61 , F16C2380/27 , F16H1/16 , F16H55/24 , F16H2057/0213 , F16H2057/0222 , H02K7/081 , H02K7/1166 , Y10T74/19828
摘要： A torsion coil spring 30 applies an elastic force to a worm shaft 29 in a direction towards a worm wheel, via a pre-load pad 70. The pre-load pad 70 restricts displacement in relation to the widthwise direction, by one side face portion of a holder 61 fixed to a gear housing 22. Due to the elastic deformation of the pre-load pad 70 itself based on the elastic force of the torsion coil spring 30, the side face of the pre-load pad 70 is abutted against the one side face portion of the holder 61, so that a gap between the pre-load pad 70 and the one side face portion is minimized. As a result, the occurrence of a teeth fitting noise in the worm reduction gear 16 is suppressed.

7. 发明申请

US20070251758A1 Worm reduction gear and electric power steering apparatus 有权
公开(公告)号：US20070251758A1
公开(公告)日：2007-11-01
申请号：US11798166
申请日：2007-05-10
申请人： Toru Segawa , Kazuo Chikaraishi
发明人： Toru Segawa , Kazuo Chikaraishi
IPC分类号： B62D5/04
CPC分类号： F16H57/021 , B62D5/0409 , F16C25/083 , F16C2361/61 , F16C2380/27 , F16H1/16 , F16H55/24 , F16H2057/0213 , F16H2057/0222 , H02K7/081 , H02K7/1166 , Y10T74/19828
摘要： A torsion coil spring 30 applies an elastic force to a worm shaft 29 in a direction towards a worm wheel, via a pre-load pad 70. The pre-load pad 70 restricts displacement in relation to the widthwise direction, by one side face portion of a holder 61 fixed to a gear housing 22. Due to the elastic deformation of the pre-load pad 70 itself based on the elastic force of the torsion coil spring 30, the side face of the pre-load pad 70 is abutted against the one side face portion of the holder 61, so that a gap between the pre-load pad 70 and the one side face portion is minimized. As a result, the occurrence of a teeth fitting noise in the worm reduction gear 16 is suppressed.

8. 发明申请

US20070251757A1 Worm reduction gear and electric power steering apparatus 有权
标题翻译：蜗轮减速装置和电动助力转向装置
公开(公告)号：US20070251757A1
公开(公告)日：2007-11-01
申请号：US11798164
申请日：2007-05-10
申请人： Toru Segawa , Kazuo Chikaraishi
发明人： Toru Segawa , Kazuo Chikaraishi
IPC分类号： B62D5/04
CPC分类号： F16H57/021 , B62D5/0409 , F16C25/083 , F16C2361/61 , F16C2380/27 , F16H1/16 , F16H55/24 , F16H2057/0213 , F16H2057/0222 , H02K7/081 , H02K7/1166 , Y10T74/19828
摘要： A torsion coil spring 30 applies an elastic force to a worm shaft 29 in a direction towards a worm wheel, via a pre-load pad 70. The pre-load pad 70 restricts displacement in relation to the widthwise direction, by one side face portion of a holder 61 fixed to a gear housing 22. Due to the elastic deformation of the pre-load pad 70 itself based on the elastic force of the torsion coil spring 30, the side face of the pre-load pad 70 is abutted against the one side face portion of the holder 61, so that a gap between the pre-load pad 70 and the one side face portion is minimized. As a result, the occurrence of a teeth fitting noise in the worm reduction gear 16 is suppressed.
摘要翻译：扭力螺旋弹簧30经由预加载垫70向蜗轮轴29向蜗轮的方向施加弹力。预加载垫70通过一个侧面部分限制相对于宽度方向的位移固定在齿轮壳体22上的支架61由于预紧垫70自身基于扭力螺旋弹簧30的弹力的弹性变形，预载垫70的侧面抵靠保持器61的一个侧面部分，使得预加载垫70和一个侧面部分之间的间隙最小化。结果，抑制了蜗轮减速装置16中的齿配合噪声的发生。

9. 发明授权

US07077235B2 Electric power steering device 有权
标题翻译：电动助力转向装置
公开(公告)号：US07077235B2
公开(公告)日：2006-07-18
申请号：US10491564
申请日：2002-12-03
申请人： Hiroshi Eda , Toru Segawa
发明人： Hiroshi Eda , Toru Segawa
IPC分类号： B62D5/04
CPC分类号： B62D5/0409 , F16C19/06 , F16C25/08 , F16C27/066 , F16C35/073 , F16C2326/24 , F16C2361/61 , F16C2380/27 , F16H1/16 , F16H25/24 , F16H55/24 , F16H57/021 , F16H2057/0213
摘要： Provided is an electric power steering apparatus comprising a housing, a motor attached to this housing and transmitting an auxiliary steering force to a rotary shaft through a motor shaft, a worm formed on or fitted on the rotary shaft and having a gear portion formed of a metal or a resin, rolling bearings provided in the housing, disposed respectively in positions on both sides of the worm and rotatably supporting the rotary shaft, an output shaft transmitting a steering force for steering an axle and rotatably supported in a predetermined position of the housing, and a worm wheel formed on or fitted on the output shaft in a way that meshes with the worm and having a gear portion formed of the resin, wherein a pre-load mechanism for applying a pre-load acting towards the worm wheel is provided at a shaft end portion, distal from the motor, of the rotary shaft. The thus simply-constructed electric power steering apparatus is capable of eliminating an existence of a backlash and reducing tooth-butting noises without any decline of a power transmitting performance.
摘要翻译：本发明提供一种电动助力转向装置，其特征在于，包括壳体，安装在该壳体上的电动机，并通过电动机轴将辅助转向力传递给旋转轴，形成在旋转轴上或配合在旋转轴上的蜗杆，具有由金属或树脂，设置在壳体中的滚动轴承分别设置在蜗杆两侧的位置并可旋转地支撑旋转轴;输出轴，其传递用于转向轴的转向力，并可转动地支撑在壳体的预定位置以及蜗轮，其以与蜗杆啮合并具有由树脂形成的齿轮部分的方式形成在输出轴上或安装在输出轴上，其中提供用于施加朝向蜗轮作用的预加载的预加载机构在旋转轴的远离电动机的轴端部分。这样简单地构成的电动助力转向装置能够消除齿隙的存在，并且减少齿对噪声，而不会降低动力传递性能。

10. 发明申请

US20090050399A1 ELECTRIC POWER STEERING DEVICE 审中-公开
标题翻译：电动转向装置
公开(公告)号：US20090050399A1
公开(公告)日：2009-02-26
申请号：US11815143
申请日：2006-01-31
申请人： Toru Segawa , Hiroshi Eda , Takeshi Yamamoto
发明人： Toru Segawa , Hiroshi Eda , Takeshi Yamamoto
IPC分类号： B62D5/04
CPC分类号： B62D5/0409 , B62D1/20 , B62D5/0403 , F16B5/0275
摘要： In an electric power steering device, the performances of a reduction unit and a rack unit are easily warranted independently of each other, the reduction unit and the rack unit are simply assembled, the degree of freedom for the fastened positions of the reduction unit and a rack housing are raised, and advantage of the layout are taken.
摘要翻译：在电动助力转向装置中，简单地将减速单元和齿条单元的性能彼此独立地保证，简单地组装减速单元和齿条单元，还原单元的紧固位置的自由度和提升机架外壳，采用布局优势。

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