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1. 发明授权

US08074531B2 Electric power steering apparatus 有权
标题翻译：电动助力转向装置
公开(公告)号：US08074531B2
公开(公告)日：2011-12-13
申请号：US11652652
申请日：2007-01-12
申请人： Ryousuke Yamazaki , Hiroyuki Shigemura , Shingo Ougita , Wataru Yamada
发明人： Ryousuke Yamazaki , Hiroyuki Shigemura , Shingo Ougita , Wataru Yamada
IPC分类号： F16H35/00 , F16H55/18
CPC分类号： B62D5/0409 , F16C19/06 , F16C27/04 , F16C2326/24 , F16H55/24 , F16H2057/0213 , F16H2057/0222 , Y10T74/19623 , Y10T74/19828
摘要： An electric power steering apparatus comprises a transmission mechanism having a drive gear and a driven gear. One end of the drive gear is supported by a bearing hole in a housing through a bearing and a curved plate spring. The curved plate spring comprises a main body surrounding the bearing and at least one crank-shaped elastic tongue supported by at least one of ends of the main body. A recess formed on an inner peripheral surface of the bearing hole has a bottom and a pair of inner wall surfaces opposed to each other in the circumferential direction of the bearing hole. A relief portion for avoiding contact with a connection portion of the elastic tongue is formed between at least one of the inner wall surfaces and the inner peripheral surface of the bearing hole. A boundary between the relief portion and the inner peripheral surface of the bearing hole is engaged with the main body of the curved plate spring, to restrict the movement of the main body in the circumferential direction.
摘要翻译：电动助力转向装置包括具有驱动齿轮和从动齿轮的变速机构。驱动齿轮的一端通过轴承和弯曲板簧由壳体中的轴承孔支撑。弯曲板簧包括围绕轴承的主体和由主体的至少一个端部支撑的至少一个曲柄形弹性舌片。在轴承孔的内周面形成的凹部具有在轴承孔的圆周方向上彼此相对的底部和一对内壁面。在所述内壁面和所述轴承孔的内周面的至少一个之间形成有用于避免与所述弹性舌的连接部接触的释放部。浮雕部和轴承孔的内周面之间的边界与弯曲板簧的主体接合，以限制主体在圆周方向上的移动。

2. 发明申请

US20070163374A1 Electric power steering apparatus 有权
标题翻译：电动助力转向装置
公开(公告)号：US20070163374A1
公开(公告)日：2007-07-19
申请号：US11652652
申请日：2007-01-12
申请人： Ryousuke Yamazaki , Hiroyuki Shigemura , Shingo Ougita , Wataru Yamada
发明人： Ryousuke Yamazaki , Hiroyuki Shigemura , Shingo Ougita , Wataru Yamada
IPC分类号： F16H55/18
CPC分类号： B62D5/0409 , F16C19/06 , F16C27/04 , F16C2326/24 , F16H55/24 , F16H2057/0213 , F16H2057/0222 , Y10T74/19623 , Y10T74/19828
摘要： An electric power steering apparatus comprises a transmission mechanism having a drive gear and a driven gear. One end of the drive gear is supported by a bearing hole in a housing through a bearing and a curved plate spring. The curved plate spring comprises a main body surrounding the bearing and at least one crank-shaped elastic tongue supported by at least one of ends of the main body. A recess formed on an inner peripheral surface of the bearing hole has a bottom and a pair of inner wall surfaces opposed to each other in the circumferential direction of the bearing hole. A relief portion for avoiding contact with a connection portion of the elastic tongue is formed between at least one of the inner wall surfaces and the inner peripheral surface of the bearing hole. A boundary between the relief portion and the inner peripheral surface of the bearing hole is engaged with the main body of the curved plate spring, to restrict the movement of the main body in the circumferential direction.
摘要翻译：电动助力转向装置包括具有驱动齿轮和从动齿轮的变速机构。驱动齿轮的一端通过轴承和弯曲板簧由壳体中的轴承孔支撑。弯曲板簧包括围绕轴承的主体和由主体的至少一个端部支撑的至少一个曲柄形弹性舌片。在轴承孔的内周面形成的凹部具有在轴承孔的圆周方向上彼此相对的底部和一对内壁面。在所述内壁面和所述轴承孔的内周面的至少一个之间形成有用于避免与所述弹性舌的连接部接触的释放部。浮雕部和轴承孔的内周面之间的边界与弯曲板簧的主体接合，以限制主体在圆周方向上的移动。

3. 发明申请

US20070193819A1 Electric power steering device 有权
标题翻译：电动助力转向装置
公开(公告)号：US20070193819A1
公开(公告)日：2007-08-23
申请号：US10592147
申请日：2005-03-08
申请人： Souichi Iwasa , Shingo Ougita
发明人： Souichi Iwasa , Shingo Ougita
IPC分类号： B62D5/04
CPC分类号： B62D5/0409 , F16H55/24 , F16H57/021 , F16H2057/0213 , Y10T74/19623
摘要： An electric power steering device (1) is provided which transmits output rotation of an electric motor for generating a steering assist force (16) to a steering mechanism (64) via a driving gear (22) and a driven gear (21). A housing (8) has a support hole (28) for supporting one end portion (23) of a shaft (20) co-rotatable with the driving gear (22) via a bearing (26) in such a manner as to permit the one end portion (23) to be offset toward the driven gear (21) radially of the driving gear (22). A biasing member (33) which biases the driving gear (22) toward the driven gear (21) includes an arcuate main portion (47) fitted around an outer peripheral surface (58) of an outer ring (36) of the bearing (26) and opposed to an inner peripheral surface (42) of the support hole (28). A pair of movement restriction portions (50, 51) which restrict circumferential movement of the main portion (47) are respectively provided at a pair of arc ends (48, 49) of the main portion (47). A resilient tongue (52) which biases the driving gear (22) toward the driven gear (21) via the bearing (26) is provided only on one of the movement restriction portions (50).
摘要翻译：提供一种电动助力转向装置（1），其经由驱动齿轮（22）和从动齿轮（21）将用于产生转向辅助力（16）的电动机的输出旋转传递到转向机构（64）。壳体（8）具有用于支撑通过轴承（26）与驱动齿轮（22）共同旋转的轴（20）的一个端部（23）的支撑孔（28），以允许一个端部（23）在驱动齿轮（22）的径向上朝向从动齿轮（21）偏移。驱动齿轮（22）朝向从动齿轮（21）偏压的偏置构件（33）包括：弧形主体部（47），其围绕轴承（26）的外圈（36）的外周面）并且与支撑孔（28）的内周表面（42）相对。在主体部（47）的一对弧端部（48,49）分别设有限制主体部（47）的周向移动的一对移动限制部（50,51）。通过轴承（26）将驱动齿轮（22）朝向从动齿轮（21）偏压的弹性舌片（52）仅设置在运动限制部分（50）中的一个上。

4. 发明授权

US06561306B2 Electric steering apparatus 失效
标题翻译：电动转向装置
公开(公告)号：US06561306B2
公开(公告)日：2003-05-13
申请号：US09729988
申请日：2000-12-06
申请人： Masayuki Watanabe , Yoshiaki Takagi , Shingo Ougita , Tomonori Sugiura , Kaname Joshita
发明人： Masayuki Watanabe , Yoshiaki Takagi , Shingo Ougita , Tomonori Sugiura , Kaname Joshita
IPC分类号： B62D504
CPC分类号： F16C27/04 , B62D5/0409 , F16C2326/24 , F16H57/12
摘要： An electric steering apparatus designed to eliminate backlash by enabling a hypoid pinion 7, which operates with rotation of a steering assisting motor, to swing with a bearing as a fulcrum and deflecting the hypoid pinion 7 in a radial direction by an elastic member 16. With this electric steering apparatus, it is possible to satisfactorily eliminate backlash without being affected by dimensional errors of parts such as gears used for assisting steering and to automatically eliminate backlash if it is caused by an increase of abrasion of teeth of the gears.
摘要翻译：一种电动转向装置，其设计为通过使能与转向辅助电动机的旋转一起操作的准双曲面齿轮7以轴承作为支点摆动并通过弹性构件16在径向上偏转准双曲面小齿轮7而消除间隙。这种电动转向装置可以令人满意地消除齿隙，而不会受到用于辅助转向的齿轮等部件的尺寸误差的影响，并且如果由于齿轮的齿的磨损增加而自动消除齿隙。

5. 发明授权

US07523805B2 Electric power steering apparatus 有权
标题翻译：电动助力转向装置
公开(公告)号：US07523805B2
公开(公告)日：2009-04-28
申请号：US11674320
申请日：2007-02-13
申请人： Susumu Imagaki , Shingo Ougita , Tomonori Sugiura
发明人： Susumu Imagaki , Shingo Ougita , Tomonori Sugiura
IPC分类号： B62D5/04
CPC分类号： B62D5/0409 , F16C27/04 , F16C2326/24 , F16C2361/61 , F16F1/045 , F16H1/16 , F16H55/24 , F16H57/021 , F16H57/039 , F16H2057/0213 , F16H2057/0224 , F16H2057/127
摘要： An electric power steering apparatus includes a worm interlockedly connected to an output shaft of an electric motor, a first and a second bearing each supporting the respective side of the worm in a housing, and a gear wheel meshed with the worm. The housing includes a fitting bore in which the first bearing supporting a side of the worm closer to the electric motor is to be fitted, and an annular retaining portion located at a position corresponding to the second bearing and eccentrically oriented with respect to the center (axial center) of the fitting bore in a direction that shortens a distance L between the center of rotation of the worm and that of the gear wheel, and the annular retaining portion retains a coil spring around an outer circumference of the second bearing.
摘要翻译：电动助力转向装置包括与电动机的输出轴互锁地连接的蜗杆，第一和第二轴承，每个支撑在壳体中的蜗杆的相应侧面，以及与蜗杆啮合的齿轮。壳体包括配合孔，其中支撑靠近电动机的蜗杆的一侧的第一轴承将被配合，以及位于与第二轴承相对应的位置并相对于中心偏心取向的环形保持部分（轴向中心）沿着缩短蜗杆的旋转中心与齿轮的旋转中心之间的距离L的方向，并且环形保持部分围绕第二轴承的外周保持螺旋弹簧。

6. 发明授权

US07748492B2 Electric power steering device 有权
标题翻译：电动助力转向装置
公开(公告)号：US07748492B2
公开(公告)日：2010-07-06
申请号：US10592147
申请日：2005-03-08
申请人： Souichi Iwasa , Shingo Ougita
发明人： Souichi Iwasa , Shingo Ougita
IPC分类号： B62D5/04
CPC分类号： B62D5/0409 , F16H55/24 , F16H57/021 , F16H2057/0213 , Y10T74/19623
摘要： An electric power steering device (1) is provided which transmits output rotation of an electric motor for generating a steering assist force (16) to a steering mechanism (64) via a driving gear (22) and a driven gear (21). A housing (8) has a support hole (28) for supporting one end portion (23) of a shaft (20) co-rotatable with the driving gear (22) via a bearing (26) in such a manner as to permit the one end portion (23) to be offset toward the driven gear (21) radially of the driving gear (22). A biasing member (33) which biases the driving gear (22) toward the driven gear (21) includes an arcuate main portion (47) fitted around an outer peripheral surface (58) of an outer ring (36) of the bearing (26) and opposed to an inner peripheral surface (42) of the support hole (28). A pair of movement restriction portions (50, 51) which restrict circumferential movement of the main portion (47) are respectively provided at a pair of arc ends (48, 49) of the main portion (47). A resilient tongue (52) which biases the driving gear (22) toward the driven gear (21) via the bearing (26) is provided only on one of the movement restriction portions (50).
摘要翻译：提供一种电动助力转向装置（1），其经由驱动齿轮（22）和从动齿轮（21）将用于产生转向辅助力（16）的电动机的输出旋转传递到转向机构（64）。壳体（8）具有用于支撑通过轴承（26）与驱动齿轮（22）共同旋转的轴（20）的一个端部（23）的支撑孔（28），以允许一个端部（23）在驱动齿轮（22）的径向上朝向从动齿轮（21）偏移。驱动齿轮（22）朝向从动齿轮（21）偏压的偏置构件（33）包括：弧形主体部（47），其围绕轴承（26）的外圈（36）的外周面）并且与支撑孔（28）的内周表面（42）相对。在主体部（47）的一对弧端部（48,49）分别设有限制主体部（47）的周向移动的一对移动限制部（50,51）。通过轴承（26）将驱动齿轮（22）朝向从动齿轮（21）偏压的弹性舌片（52）仅设置在运动限制部分（50）中的一个上。

7. 发明申请

US20070205039A1 ELECTRIC POWER STEERING APPARATUS 有权
标题翻译：电动转向装置
公开(公告)号：US20070205039A1
公开(公告)日：2007-09-06
申请号：US11674320
申请日：2007-02-13
申请人： Susumu Imagaki , Shingo Ougita , Tomonori Sugiura
发明人： Susumu Imagaki , Shingo Ougita , Tomonori Sugiura
IPC分类号： B62D5/04
CPC分类号： B62D5/0409 , F16C27/04 , F16C2326/24 , F16C2361/61 , F16F1/045 , F16H1/16 , F16H55/24 , F16H57/021 , F16H57/039 , F16H2057/0213 , F16H2057/0224 , F16H2057/127
摘要： An electric power steering apparatus includes a worm interlockedly connected to an output shaft of an electric motor, a first and a second bearing each supporting the respective side of the worm in a housing, and a gear wheel meshed with the worm. The housing includes a fitting bore in which the first bearing supporting a side of the worm closer to the electric motor is to be fitted, and an annular retaining portion located at a position corresponding to the second bearing and eccentrically oriented with respect to the center (axial center) of the fitting bore in a direction that shortens a distance L between the center of rotation of the worm and that of the gear wheel, and the annular retaining portion retains a coil spring around an outer circumference of the second bearing.
摘要翻译：电动助力转向装置包括与电动机的输出轴互锁地连接的蜗杆，第一和第二轴承，每个支撑在壳体中的蜗杆的相应侧面，以及与蜗杆啮合的齿轮。壳体包括配合孔，其中支撑靠近电动机的蜗杆的一侧的第一轴承将被配合，以及位于与第二轴承相对应的位置并相对于中心偏心取向的环形保持部分（轴向中心）沿着缩短蜗杆的旋转中心与齿轮的旋转中心之间的距离L的方向，并且环形保持部分围绕第二轴承的外周保持螺旋弹簧。

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