公开(公告)号：US5732790A

公开(公告)日：1998-03-31

申请号：US562897

申请日：1995-11-27

Applicant: Shuji Endo ,  Hiroyuki Kano ,  Hideaki Kawada ,  Yasuhiko Miyaura ,  Isamu Chikuma ,  Hiroshi Eda ,  Shozo Sekiya ,  Nobuyasu Ando ,  Kenichi Hayakawa

Inventor： Shuji Endo ,  Hiroyuki Kano ,  Hideaki Kawada ,  Yasuhiko Miyaura ,  Isamu Chikuma ,  Hiroshi Eda ,  Shozo Sekiya ,  Nobuyasu Ando ,  Kenichi Hayakawa

IPC: B62D5/04 ,  B62D6/10

CPC classification number: B62D5/0409 ,  B62D5/0406 ,  B62D6/10

Abstract: In order to provide an electric power steering apparatus which can be made compact as well as reduced in cost and can be improved in reliability, a control circuit and a drive circuit are provided on a deformable flexible circuit substrate. The circuit substrate is provided on the housing of a reduction gear mechanism while being deformed so as to cover a portion of the outer surface of the housing along the shape of the outer surface.

Abstract translation: 为了提供一种电动助力转向装置，其可以制造得紧凑并且成本降低并且可以提高可靠性，在可变形的柔性电路基板上提供控制电路和驱动电路。 电路基板被设置在减速机构的壳体上，同时沿着外表面的​​形状变形以覆盖外壳的外表面的一部分。

公开(公告)号：US5248009A

公开(公告)日：1993-09-28

申请号：US755337

申请日：1991-09-05

Applicant: Shin Takehara ,  Hiroshi Ohmura ,  Ryuya Akita ,  Isamu Chikuma ,  Hiroyuki Ito ,  Hiroshi Eda

Inventor： Shin Takehara ,  Hiroshi Ohmura ,  Ryuya Akita ,  Isamu Chikuma ,  Hiroyuki Ito ,  Hiroshi Eda

IPC: B62D7/15

CPC classification number: B62D7/1581

Abstract: A vehicle rear wheels steering apparatus is provided with a guide member having a guideway capable of freely tilting toward the axis of the rod member. Therefore, when the rod member rotates around the axis, an operating member provided on the outside of the rod member rotates around the rod member axis along the guideway to steer the rear wheels by an amount corresponding to an amount of rotation of the rod member and an amount of tilting of the guideway.

公开(公告)号：US5147009A

公开(公告)日：1992-09-15

申请号：US692305

申请日：1991-04-26

Applicant: Isamu Chikuma ,  Hiroshi Eda

Inventor： Isamu Chikuma ,  Hiroshi Eda

IPC: B62D6/02

CPC classification number: B62D6/02

Abstract: A steering reaction force generating mechanism for generating a reaction force acting on an input shaft is provided within a cylindrical space of a housing between a lower end portion of the input shaft and an upper end portion of a pinion shaft (output shaft). The steering reaction force generating mechanism includes an input shaft accommodating section for accommodating the lower end of the input shaft together with its two control arms which protrude symmetrically and radially therefrom. A pair of reaction force chambers are provided at both sides of the input shaft accommodating section in parallel with the two control arms. Two pairs of through bores are formed respectively between one of the reaction force chambers and the input shaft accommodating section, and between the other of the reaction force chambers and the input shaft accommodating section. Two pairs of plungers are respectively disposed in the through bores so that each plunger is slidable in its axial direction toward and away from the control arm of the input shaft. The movement of each plunger is restricted by a pin inserted into a further through bore formed in the plunger extending in a direction orthogonal to the axis of the plunger. The inner peripheral surface of the through bore and the outer peripheral surface of the plunger can be ground easily and accurately to insure smooth movement of the plunger.

Abstract translation: 在输入轴的下端部和小齿轮轴（输出轴）的上端部之间的壳体的圆筒状空间内设置有用于产生作用在输入轴上的反作用力的转向反作用力产生机构。 转向反作用力产生机构包括：输入轴容纳部，用于将输入轴的下端与其对称地和径向突出的两个控制臂一起容纳。 一对反作用力室与两个控制臂平行设置在输入轴容纳部分的两侧。 分别在一个反作用力室和输入轴容纳部之间以及另一个反作用力室和输入轴容纳部之间形成两对通孔。 两对柱塞分别设置在通孔中，使得每个柱塞可以在其轴向方向上朝向和远离输入轴的控制臂滑动。 每个柱塞的运动受到插入到形成在柱塞上的另一贯通孔中的销的限制，该穿孔在与柱塞的轴线正交的方向上延伸。 通孔的内周面和柱塞的外周面可以容易且准确地磨削，以确保柱塞的平稳移动。

公开(公告)号：US4874183A

公开(公告)日：1989-10-17

申请号：US216183

申请日：1988-07-07

Applicant: Isamu Chikuma ,  Satoru Shimada ,  Hiroshi Eda

Inventor： Isamu Chikuma ,  Satoru Shimada ,  Hiroshi Eda

IPC: B62D7/14 ,  B62D7/15

CPC classification number: B62D7/1527

Abstract: A four-wheel steering apparatus of a vehicle has a front-wheel steering mechanism for steering front wheels, a rear-wheel steering mechanism for steering rear wheels, a steering gear mechanism operatively connected to the front-wheel steering mechanism and effecting a steering operation, a steering angle extracting mechanism operatively connected to the steering mechanism and extracting the steering angle of the front wheels, the steering angle extracting mechanism comprising a restraining member movable axially along the axis of the front wheels in response to the steering operation, and a string member fixed to the restraining member and displaceable in the lengthwise direction thereof in response to the movement of the restraining member, and rear-wheel steering angle control mechanism operatively connected to the steering angle extracting mechanism for controlling the amount and the direction of steer to be transmitted to the rear wheels, the rear-wheel steering angle control mechanism comprising a rotatable member rotatable in response to the displacement of the string member, and a transmission member movably engaged with the rotatable member and movable in conformity with the amount and the direction of rotation of the rotatable member for transmitting the amount of movement thereof to the rear-wheel steering mechanism.

Abstract translation: 车辆的四轮转向装置具有用于转向前轮的前轮转向机构，用于转向后轮的后轮转向机构，可操作地连接到前轮转向机构并进行转向操作的转向齿轮机构 ，可操作地连接到转向机构并提取前轮的转向角的转向角提取机构，所述转向角提取机构包括响应于转向操作沿着前轮的轴线轴向移动的限制部件，以及弦 构件，其被固定到限制构件并且响应于限制构件的移动而在其长度方向上移位;以及后轮转向角控制机构，其可操作地连接到转向角提取机构，用于控制转向量的数量和方向为 传递到后轮，后轮转向角控制机构 其包括可响应于弦构件的位移而可旋转的可旋转构件，以及传动构件，其与可旋转构件可移动地接合并且可移动地与可旋转构件的旋转量的量和方向一致，以将其移动量传递到 后轮转向机构。

公开(公告)号：US06711965B2

公开(公告)日：2004-03-30

申请号：US10133753

申请日：2002-04-29

Applicant: Masaki Tomaru ,  Isamu Chikuma ,  Sakae Matsumoto ,  Kazuya Fukuda ,  Takahiro Saito

Inventor： Masaki Tomaru ,  Isamu Chikuma ,  Sakae Matsumoto ,  Kazuya Fukuda ,  Takahiro Saito

IPC: B62D118

CPC classification number: B62D1/181

Abstract: An electric tilt and/or telescopic steering column apparatus comprises a steering shaft having a steering wheel mounted on a rear end thereof, a steering column for rotatably supporting the steering shaft, an electric actuator for adjusting the tilt and/or telescopic position of the steering shaft by driving this steering column, and position detecting means for detecting the position of the steering shaft in a non-contact manner.

公开(公告)号：US5454438A

公开(公告)日：1995-10-03

申请号：US220545

申请日：1994-03-31

Applicant: Isamu Chikuma

Inventor： Isamu Chikuma

IPC: B62D5/04 ,  F16H57/021 ,  H02K7/08

CPC classification number: B62D5/0409 ,  F16H57/021 ,  H02K7/081 ,  F16H2057/0213

Abstract: In order to provide an electric power steering system of small size whose output shaft has little play, a pressure member of the electric-driven power steering system compresses a duplex bearing, more specifically, presses two bearing components of the duplex bearing against each other. As a result, the play which the output shaft has in each bearing is removed.

Abstract translation: 为了提供输出轴几乎没有游隙的小尺寸的电动助力转向系统，电动助力转向系统的压力构件压缩双轴承，更具体地，将双轴承轴承的两个轴承部件彼此压紧。 结果，输出轴在每个轴承中的游隙被去除。

公开(公告)号：US5236057A

公开(公告)日：1993-08-17

申请号：US755015

申请日：1991-09-04

Applicant: Shin Takehara ,  Hiroshi Ohmura ,  Ryuya Akita ,  Isamu Chikuma ,  Hiroyuki Ito ,  Hiroshi Eda

Inventor： Shin Takehara ,  Hiroshi Ohmura ,  Ryuya Akita ,  Isamu Chikuma ,  Hiroyuki Ito ,  Hiroshi Eda

IPC: B62D7/14 ,  B62D7/15

CPC classification number: B62D7/1572 ,  B62D7/148 ,  B62D7/159

Abstract: A rear wheel steering apparatus for a vehicle, comprises a hydraulic cylinder for displacing a steering rod connected to left and right rear wheels axially, a centering spring for biasing the steering rod toward a neutral position, and a centering spring cancelling mechanism for preventing a biasing force of the centering spring from acting on the steering rod. A partition wall of the hydraulic cylinder defines an oil chamber in the cylinder and is formed as a cup shape having a central concave portion which constitutes a pressure chamber of the centering spring cancelling mechanism.

公开(公告)号：US4724717A

公开(公告)日：1988-02-16

申请号：US902639

申请日：1986-09-02

Applicant: Isamu Chikuma

Inventor： Isamu Chikuma

IPC: B62D3/12 ,  F16H55/28 ,  F16H57/12

CPC classification number: F16H55/283 ,  B62D3/123 ,  F16H55/285 ,  Y10T74/1967

Abstract: A rack shaft support device is provided for rack and pinion steering of the type having a housing containing a pinion rotatable by the rotating operation of a steering wheel and a rack shaft engaged with the pinion and axially movable by the rotation thereof to steer wheels. The device comprises an antifriction support including an antifriction roller contacting the rack shaft, a mechanism biasing the antifriction support toward the pinion, a vibration absorbing member urged against the antifriction member and absorbing vibration of the rack shaft by friction, and a limiting member disposed concentrically about the rack shaft and limiting transverse displacement of the rack shaft to a predetermined amount.

Abstract translation: 提供了一种齿条轴支撑装置，用于具有壳体的齿条和小齿轮转向，该壳体包含通过方向盘的旋转操作可旋转的小齿轮和与小齿轮啮合的齿条轴，并通过其旋转轴向移动以转向轮。 该装置包括一个减摩支架，它包括一个与齿条轴接触的减摩辊，一个将减摩支架朝向小齿轮偏置的机构，一个抵靠摩擦件推动的吸振件，并通过摩擦吸收齿条轴的振动，同时设置一个限制件 围绕齿条轴并且将齿条轴的横向位移限制到预定量。

公开(公告)号：US4601357A

公开(公告)日：1986-07-22

申请号：US714530

申请日：1985-03-21

Applicant: Akihiko Miyoshi ,  Shigeki Furutani ,  Isamu Chikuma ,  Satoru Shimada

Inventor： Akihiko Miyoshi ,  Shigeki Furutani ,  Isamu Chikuma ,  Satoru Shimada

IPC: B62D5/26 ,  B62D6/02 ,  B62D7/14 ,  B62D7/15 ,  B62D5/00

CPC classification number: B62D7/1545

Abstract: A four-wheel steering system for a vehicle has a rear wheel steering ratio changing means which changes the rear wheel steering ratio in accordance with rear wheel steering ratio characteristics predetermined according to the vehicle speed, and an inhibiting means which inhibits the rear wheel steering ratio changing means from changing the rear wheel steering ratio when the steering wheel is turned right or left from its neutral position.

Abstract translation: 一种用于车辆的四轮转向系统具有根据根据车速预定的后轮转向比特性来改变后轮转向比的后轮转向比改变装置，以及抑制后轮转向比 当方向盘从其中立位置右转或左转时改变后轮转向比的改变方式。

公开(公告)号：US5482127A

公开(公告)日：1996-01-09

申请号：US251946

申请日：1994-06-01

Applicant: Hiroshi Eda ,  Hironobu Shiono ,  Isamu Chikuma

Inventor： Hiroshi Eda ,  Hironobu Shiono ,  Isamu Chikuma

IPC: B62D5/04 ,  F16D7/02

CPC classification number: B62D5/0409 ,  B62D5/043 ,  F16D7/025

Abstract: A power transmission device, having a frictional face and a pressure member pressed to the frictional face, is provided between the rotary shaft of a motor and a reducing mechanism of an electric power steering device, so that the power transmission is achieved utilizing a frictional force generated between the frictional face and the pressure member, before the output torque of the motor is amplified by the reducing mechanism. Consequently the power transmission device can be made simple and compact in configuration, as it is not necessary to increase the pressing force of the pressure member nor to increase the area of the frictional face.

Abstract translation: 在电动机的旋转轴和电动助力转向装置的减速机构之间设置具有摩擦面和被压向摩擦面的压力构件的动力传递装置，利用摩擦力实现动力传递 在电动机的输出转矩被减速机构放大之前，在摩擦面和压力部件之间产生。 因此，动力传递装置的构造可以简单且紧凑，因为不需要增加压力构件的按压力，也不增加摩擦面的面积。