公开(公告)号：US08294311B2

公开(公告)日：2012-10-23

申请号：US11714158

申请日：2007-03-06

申请人： Takashi Miyoshi ,  Yasuo Shimizu ,  Atsuhiko Yoneda ,  Katsuhiro Saito ,  Ryoji Toyofuku ,  Katsuji Watanabe

发明人： Takashi Miyoshi ,  Yasuo Shimizu ,  Atsuhiko Yoneda ,  Katsuhiro Saito ,  Ryoji Toyofuku ,  Katsuji Watanabe

IPC分类号： H02K5/16 ,  H02K7/08 ,  H02K7/06 ,  H02K7/10

CPC分类号： F16C35/067 ,  F16C2380/27 ,  H02K5/1732 ,  H02K7/081 ,  H02K7/1166 ,  H02K29/12 ,  Y10T74/19828

摘要： An electric motor having a rotation shaft includes a motor housing into which the electric motor is accommodated, at least one pair of rolling bearings positioned in the motor housing and rotatably supporting both ends of the rotation shaft, and a displacement restriction member provided inside the motor housing and restricting a displacement of the rolling bearing in an axial direction of the rolling bearing. Each rolling bearing includes an inner race, an outer race, and rolling elements rotatably supported between the inner race and the outer race. The inner race is press fitted without any gaps onto an outer peripheral surface of the rotation shaft, and the outer race is press fitted without any gaps into a bearing attachment portion provided inside the motor housing.

摘要翻译： 具有旋转轴的电动机包括容纳电动机的电动机壳体，位于电动机壳体中的至少一对滚动轴承和可旋转地支撑旋转轴的两端的旋转轴承，以及设置在电动机内部的位移限制部件 容纳并限制滚动轴承在滚动轴承的轴向上的位移。 每个滚动轴承包括内圈，外圈和可旋转地支撑在内圈和外圈之间的滚动元件。 内圈在旋转轴的外周面上没有任何间隙地压配合，并且外圈没有间隙地压配合到设置在电动机壳体内部的轴承安装部分中。

公开(公告)号：US08066092B2

公开(公告)日：2011-11-29

申请号：US12290882

申请日：2008-11-04

申请人： Yasuo Shimizu ,  Katsuji Watanabe ,  Atsuhiko Yoneda ,  Shigeru Yamawaki

发明人： Yasuo Shimizu ,  Katsuji Watanabe ,  Atsuhiko Yoneda ,  Shigeru Yamawaki

IPC分类号： B62D5/04

CPC分类号： B62D1/16 ,  B62D5/04 ,  B62D5/0469

摘要： An electric power steering device is configured to transmit an auxiliary torque to a steering unit of front wheels, and includes: an operator; an electric motor configured to generate the auxiliary torque in accordance with at least a steering torque generated by input from the operator; the steering unit of front wheels which includes a pinion shaft; and a rotation terminating mechanism which provides a motion terminating end of the operator, the rotation terminating mechanism being disposed between the operator and the pinion shaft.

摘要翻译： 电动助力转向装置被配置为向前轮的转向单元传递辅助转矩，并且包括：操作者; 电动机，被配置为根据至少由操作者的输入产生的转向转矩产生辅助转矩; 前轮的转向单元包括小齿轮轴; 以及旋转终止机构，其提供操作者的运动终止端，旋转终止机构设置在操作者和小齿轮轴之间。

公开(公告)号：US07814808B2

公开(公告)日：2010-10-19

申请号：US11114559

申请日：2005-04-26

申请人： Yasuo Shimizu ,  Katsuji Watanabe ,  Takahiro Aoki ,  Yasuhiro Terada ,  Ryoji Toyofuku

发明人： Yasuo Shimizu ,  Katsuji Watanabe ,  Takahiro Aoki ,  Yasuhiro Terada ,  Ryoji Toyofuku

IPC分类号： F16H55/18

CPC分类号： B62D5/0409 ,  Y10T74/19623 ,  Y10T74/19828

摘要： Worm gear mechanism includes a driving worm, a torque delivering worm wheel meshing with the worm, and an auxiliary worm wheel superimposed on the torque delivering worm wheel. The auxiliary worm wheel has a pitch diameter greater than that of the torque delivering worm wheel. The auxiliary worm wheel is biased against the driving worm wheel via a biasing member in the form of a leaf spring.

摘要翻译： 蜗轮机构包括驱动蜗杆，与蜗杆啮合的扭矩输送蜗轮，以及叠加在扭矩传递蜗轮上的辅助蜗轮。 辅助蜗轮的直径大于扭矩输送蜗轮的直径。 辅助蜗轮通过叶簧形式的偏置构件偏压驱动蜗轮。

公开(公告)号：US07806016B2

公开(公告)日：2010-10-05

申请号：US11095237

申请日：2005-03-29

申请人： Yasuo Shimizu ,  Katsuji Watanabe

发明人： Yasuo Shimizu ,  Katsuji Watanabe

IPC分类号： F16H35/00

CPC分类号： F16H55/24 ,  B62D5/0409 ,  Y10T74/18792 ,  Y10T74/19623 ,  Y10T74/19828 ,  Y10T74/19953

摘要： A worm gear mechanism includes a worm, a torque-transmitting worm wheel meshing with the worm, and an auxiliary worm wheel disposed concentrically with the torque-transmitting worm wheel. The auxiliary worm wheel has a pitch circle diameter set to be greater than a pitch circle diameter of the torque-transmitting worm wheel and hence meshes with the worm in a meshing phase different from that of the torque-transmitting worm wheel. A screw thread provided on the worm actually meshes with teeth of the torque-transmitting worm wheel along a length defined as an actual meshing length. The screw thread has an effective length reduced to be approximately equal to the actual meshing length.

摘要翻译： 蜗轮机构包括蜗杆，与蜗杆啮合的扭矩传递蜗轮，以及与扭矩传递蜗轮同心设置的辅助蜗轮。 辅助蜗轮的节圆直径设定为大于扭矩传递蜗轮的节圆直径，因此与蜗轮啮合的啮合相位与扭矩传递蜗轮不同。 设在蜗杆上的螺纹线实际上沿着定义为实际啮合长度的长度与转矩传递蜗轮的齿啮合。 螺纹的有效长度减小到近似等于实际的啮合长度。

公开(公告)号：US20090114470A1

公开(公告)日：2009-05-07

申请号：US12290882

申请日：2008-11-04

申请人： Yasuo Shimizu ,  Katsuji Watanabe ,  Atsuhiko Yoneda ,  Shigeru Yamawaki

发明人： Yasuo Shimizu ,  Katsuji Watanabe ,  Atsuhiko Yoneda ,  Shigeru Yamawaki

IPC分类号： B62D5/04

CPC分类号： B62D1/16 ,  B62D5/04 ,  B62D5/0469

摘要： An electric power steering device is configured to transmit an auxiliary torque to a steering unit of front wheels, and includes: an operator; an electric motor configured to generate the auxiliary torque in accordance with at least a steering torque generated by input from the operator; the steering unit of front wheels which includes a pinion shaft; and a rotation terminating mechanism which provides a motion terminating end of the operator, the rotation terminating mechanism being disposed between the operator and the pinion shaft.

摘要翻译： 电动助力转向装置被配置为向前轮的转向单元传递辅助转矩，并且包括：操作者; 电动机，被配置为根据至少由操作者的输入产生的转向转矩产生辅助转矩; 前轮的转向单元包括小齿轮轴; 以及旋转终止机构，其提供操作者的运动终止端，旋转终止机构设置在操作者和小齿轮轴之间。

公开(公告)号：US20070251333A1

公开(公告)日：2007-11-01

申请号：US11730960

申请日：2007-04-05

申请人： Katsuji Watanabe ,  Yasuo Shimizu

发明人： Katsuji Watanabe ,  Yasuo Shimizu

IPC分类号： G01L3/00

CPC分类号： G01L5/221 ,  B62D6/10

摘要： This magnetostrictive torque sensor includes: a shaft made of a magnetized material; a magnetostrictive portion provided on the shaft at a position distanced for a predetermined length from an end of the shaft; a detection coil that is arranged so as to face the magnetostrictive portion, and detects a change in a magnetic characteristic of the magnetostrictive portion; and a plating made of an nonmagnetic material, that is provided on the end of the shaft.

摘要翻译： 该磁致伸缩扭矩传感器包括：由磁化材料制成的轴; 磁致伸缩部，其设置在所述轴上，距离所述轴的端部远离预定长度的位置; 检测线圈，其被配置为面对磁致伸缩部分，并检测磁致伸缩部分的磁特性的变化; 以及设置在轴的端部上的由非磁性材料制成的电镀。

公开(公告)号：US06976556B2

公开(公告)日：2005-12-20

申请号：US10618476

申请日：2003-07-11

申请人： Yasuo Shimizu ,  Katsuji Watanabe ,  Yasuhiro Terada

发明人： Yasuo Shimizu ,  Katsuji Watanabe ,  Yasuhiro Terada

IPC分类号： B62D5/04 ,  F16H55/22 ,  B62D5/06

CPC分类号： B62D5/0409 ,  F16H55/22

摘要： Electric power steering apparatus includes an electric motor for producing steering assist torque corresponding to steering torque applied to a steering system, and a worm gear mechanism for transmitting the steering assist torque to the steering system. The worm of the worm gear mechanism has a pressure angle greater than a pressure angle of the worm wheel, so as to reduce an actual meshing pitch circle diameter of the worm in the worm gear mechanism.

摘要翻译： 电动助力转向装置包括用于产生对应于施加到转向系统的转向转矩的转向辅助转矩的电动机和用于将转向辅助转矩传递到转向系统的蜗轮机构。 蜗轮机构的蜗杆具有大于蜗轮的压力角的压力角，从而减小蜗轮蜗杆机构中蜗杆的实际啮合节圆直径。

公开(公告)号：US06968919B2

公开(公告)日：2005-11-29

申请号：US10268367

申请日：2002-10-10

申请人： Yasuo Shimizu ,  Koichi Suyama ,  Katsuji Watanabe ,  Atsuhiko Yoneda

发明人： Yasuo Shimizu ,  Koichi Suyama ,  Katsuji Watanabe ,  Atsuhiko Yoneda

IPC分类号： B62D1/16 ,  B62D5/04 ,  B62D5/06 ,  F16C1/10 ,  B62D1/00

CPC分类号： B62D1/163 ,  F16C1/106 ,  F16C1/18 ,  F16C2326/24

摘要： A cable type steering system includes an operation cable having an outer tube and inner cable slidably received in the outer tube. A drive pulley coupled to a steering wheel for rotation and a driven pulley coupled to a steering gear box for steering wheels for rotation are connected to end portions of the inner cable. A steering torque inputted to the steering wheel is transmitted to the steering gear box via the inner cable of the operation cable. At least one of a first portion of the system extending from the drive pulley to a first position of the outer tube and a second portion of the system extending from the driven pulley to a second position of the outer tube is accommodated within a waterproof space formed by a cover, such as a rubber cover or a cover molded of synthetic resin.

摘要翻译： 电缆式转向系统包括具有外管和可滑动地容纳在外管中的内电缆的操作电缆。 连接到用于旋转的方向盘的驱动皮带轮和连接到用于旋转的方向盘的转向齿轮箱的从动皮带连接到内部电缆的端部。 输入到方向盘的转向扭矩经由操作缆线的内部缆线传递到转向齿轮箱。 从驱动皮带轮延伸到外管的第一位置的系统的第一部分和从从动皮带轮延伸到第二位置的系统的第二部分中的至少一个容纳在形成的防水空间中 通过盖，例如橡胶盖或由合成树脂模制的盖。

公开(公告)号：US06843343B2

公开(公告)日：2005-01-18

申请号：US10391058

申请日：2003-03-17

申请人： Yasuo Shimizu ,  Katsuji Watanabe ,  Yoeru Kono

发明人： Yasuo Shimizu ,  Katsuji Watanabe ,  Yoeru Kono

IPC分类号： B62D3/12 ,  B62D5/04 ,  B62D5/22 ,  B62D7/22

CPC分类号： B62D3/126 ,  B62D5/0409 ,  B62D7/226

摘要： The electric power steering device such that the characteristic vibration of the rack shaft is adjusted by providing a hollow portion at the rack shaft, resulting in that the characteristic vibration of the rack shaft does not resonate with the vibration of the rack caused by the wheels and/or the motor.

摘要翻译： 电动助力转向装置通过在齿条轴上设置中空部来调整齿条轴的特性振动，使得齿条轴的特征振动不会与由车轮产生的齿条的振动共振， /或电机。

公开(公告)号：US5924519A

公开(公告)日：1999-07-20

申请号：US861305

申请日：1997-05-21

申请人： Yasuo Shimizu ,  Katsuji Watanabe

发明人： Yasuo Shimizu ,  Katsuji Watanabe

IPC分类号： B62D5/04 ,  B62D6/10

CPC分类号： B62D6/10 ,  B62D5/043

摘要： An electric power steering device includes a steering torque detector for detecting a steering torque in a steering system by detecting relative rotation between an input shaft and an output shaft, an electric motor for generating an auxiliary torque corresponding to a detection signal from the steering torque detector, and a torque transmitting mechanism for transmitting the auxiliary torque from the electric motor to the output shaft. The steering torque detector is composed of a detector body directly attached to the input shaft, and an actuator engaged with the output shaft for activating the detector body. With the steering torque detector thus arranged, an adjustment of the neutral position of the steering torque detector can be performed after the input and output shafts, the steering torque detector, and the torque transmitting mechanism are assembled together to form a single semi-finished steering assembly, and before the semi-finished steering assembly is received in a housing. Since this adjustment is effected on the steering torque detector while the semi-finished steering assembly is standing alone before it is assembled in the housing, the neutral position of the steering torque detector can be obtained with excellent accuracy but through a simple adjustment work.

摘要翻译： 电动助力转向装置包括转向转矩检测器，用于通过检测输入轴和输出轴之间的相对转动来检测转向系统中的转向转矩;电动机，用于产生与来自转向转矩检测器的检测信号相对应的辅助转矩 以及用于将辅助转矩从电动机传递到输出轴的扭矩传递机构。 转向扭矩检测器由直接安装在输入轴上的检测器主体和与输出轴接合以致动探测器主体的致动器构成。 在这样布置转向扭矩检测器的情况下，可以在输入输出轴，转向转矩检测器和转矩传递机构组装在一起以形成单个半成品转向器之后执行转向转矩检测器的空档位置的调节 并且在半成品转向组件被接收在壳体中之前。 由于这种调整在转向转矩检测器上进行，而半成品转向组件在组装在壳体中之前就站立着，所以可以以极好的精度获得转向转矩检测器的中立位置，但是通过简单的调节工作。