公开(公告)号：US4582334A

公开(公告)日：1986-04-15

申请号：US541132

申请日：1983-10-12

Applicant: Yutaka Tashiro ,  Yoshimi Furukawa ,  Shoichi Sano

Inventor： Yutaka Tashiro ,  Yoshimi Furukawa ,  Shoichi Sano

IPC: B62D7/15 ,  B62D5/10

CPC classification number: B62D7/1527 ,  B60G2200/18 ,  B60G2200/341 ,  B60G2200/462

Abstract: A steering system for a vehicle having a steering wheel and front and rear wheels, including a front steering sub-system for steering the front wheels in accordance with the steering angle of the steering wheel and a rear steering sub-system for steering the rear wheels in the same and opposite directions with respect to the front wheels in accordance with the steering angle of the steering wheel. The steering system is provided with a rack and pinion type variable-ratio mechanism for varying the ratio of the steered angle of at least either of the front or rear wheels to the steering angle of the steering wheel in accordance with the magnitude of the steering angle of the steering wheel. The design freedom in setting a functional relation between the steering angle of the steering wheel and the turning curvature of the vehicle is thus maximized. Moreover, selective setting is permitted for change of ratio of the steered angle of the rear wheels to the steering angle in the vicinity of the initial position of the steering wheel. Further, there is permitted a favorable use of available vehicle dimensions to achieve an optimum feeling characteristic of steering operation.

Abstract translation: 一种用于车辆的转向系统，其具有方向盘和前轮和后轮，包括根据方向盘的转向角度转向前轮的前转向子系统和用于转向后轮的后转向子系统 根据方向盘的转向角度，相对于前轮相同且相反的方向。 转向系统设有齿条齿轮型可变比机构，用于根据转向角的大小改变前轮或后轮中的至少一个的转向角与方向盘的转向角的比率 的方向盘。 因此，使方向盘的转向角与车辆的转弯曲率之间的功能关系的设计自由度最大化。 此外，允许选择性地设定用于改变后轮的转向角与方向盘的初始位置附近的转向角的比率。 此外，允许有利地使用可用的车辆尺寸以实现转向操作的最佳感觉特性。

公开(公告)号：US4614351A

公开(公告)日：1986-09-30

申请号：US748672

申请日：1985-06-25

Applicant: Shoichi Sano ,  Yoshimi Furukawa ,  Yutaka Tashiro

Inventor： Shoichi Sano ,  Yoshimi Furukawa ,  Yutaka Tashiro

IPC: B62D7/15 ,  B62D7/00

CPC classification number: B62D7/1527 ,  Y10T74/18256

Abstract: A steering apparatus for a vehicle having steerable front and rear wheels includes a front wheel steering system for steering the front wheels, a rear wheel steering system for steering the rear wheels, a linkage member for coupling the front and rear wheel steering systems to each other. The rear wheel steering system comprises a housing adapted to be mounted on the vehicle, an input shaft angularly movably supported by the housing and having a front end coupled to the connecting means and an eccentric shaft on a rear end thereof, a joint member supported by the housing so as to be movable transversely of the vehicle, a pair of tie rods connected at ends to the joint member and at opposite ends to the rear wheels, and a slide member held in slidable engagement with the joint member and operatively coupled to the eccentric shaft for movement in response to angular movement of the input shaft. The joint member and the slide member are held in tapered engagement with each other to assure desired operation of the steering apparatus for an extended period of time.

Abstract translation: 一种用于具有可转向前轮和后轮的车辆转向装置，包括用于转向前轮的前轮转向系统，用于转向后轮的后轮转向系统，用于将前轮和后轮转向系统彼此联接的联动构件 。 后轮转向系统包括适于安装在车辆上的壳体，由壳体角度可移动地支撑并具有联接到连接装置的前端和其后端上的偏心轴的输入轴， 所述壳体能够横向移动;一对拉杆，其连接在所述接头构件的端部处，并且在相对端部连接到所述后轮;以及滑动构件，其保持与所述接头构件可滑动地接合并可操作地联接到所述接合构件 用于响应于输入轴的角运动而运动的偏心轴。 联接构件和滑动构件保持彼此锥形接合，以确保转向装置长时间的期望操作。

公开(公告)号：US4964481A

公开(公告)日：1990-10-23

申请号：US690167

申请日：1985-01-10

Applicant: Shoichi Sano ,  Yoshimi Furukawa ,  Tetsuro Hamada

Inventor： Shoichi Sano ,  Yoshimi Furukawa ,  Tetsuro Hamada

IPC: B62D7/15

CPC classification number: B62D7/159

Abstract: A steering system for a vehicle with a steerable front wheel (5) and a rear wheel (11) controlled to be steered in accordance with a travelling state representative quantity (.delta..sub.f, V, .alpha..sub.a), wherein the rear wheel is steered taking into account at least a ratio of a cornering power (Kr) thereof to a vertical load on the tire thereof, besides the travelling state representative quantity.

Abstract translation: 一种具有可转向前轮（5）和后轮（11）的车辆的转向系统，其被控制为根据行驶状态代表量（Δf，V，αa）进行转向，其中后轮被转向 除了行驶状态代表量之外，至少考虑到其转弯功率（Kr）与其轮胎上的垂直载荷的比率。

公开(公告)号：US4647057A

公开(公告)日：1987-03-03

申请号：US658479

申请日：1984-10-09

Applicant: Yoshimi Furukawa ,  Shoichi Sano

Inventor： Yoshimi Furukawa ,  Shoichi Sano

IPC: B62D7/15 ,  B62D5/10

CPC classification number: B62D7/1545

Abstract: A steering system for vehicles in which the steered angle ratio of a rear wheel to a front wheel is controllable in accordance with the vehicle speed. The steering system is provided with a manual switch device for selecting to set an arbitrary one of a plurality of predetermined steered angle ratios. The steering system may be further provided with a switch lock device for locking the switch state of the manual switch device. The switch lock device may be actuated when the vehicle speed is higher than a predetermined reference vehicle speed. Further, the switch lock device may be actuated when a reduction gear is shifted to a shift position having a relatively low reduction ratio. The switch lock device may also be actuated when the steered angle of the front wheel is larger than a predetermined value.

Abstract translation: 一种用于车辆的转向系统，其中后轮与前轮的转向角度根据车速可控。 转向系统设置有手动开关装置，用于选择设定多个预定转向角比的任意一个。 转向系统还可以设置有用于锁定手动开关装置的开关状态的开关锁定装置。 当车速高于预定的参考车速时，可以启动开关锁定装置。 此外，当减速齿轮移动到具有相对低的减速比的换档位置时，开关锁定装置可以被致动。 当前轮的转向角度大于预定值时，也可以启动开关锁定装置。

公开(公告)号：US4566711A

公开(公告)日：1986-01-28

申请号：US661680

申请日：1984-10-17

Applicant: Yusuke Koizumi ,  Yoshimi Furukawa ,  Shoichi Sano

Inventor： Yusuke Koizumi ,  Yoshimi Furukawa ,  Shoichi Sano

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

CPC classification number: B62D7/1545

Abstract: A steering system for vehicles including a signal providing mechanism (34) for providing an information signal (Su) in relation to the vehicle speed, in which the steered angle ratio of a rear wheel (20) to a front wheel (7) is controlled to be variable in accordance with the information signal.The signal providing mechanism comprises a sensor (34) adapted to detect the shift position of a speed change gear (33) of the vehicle.In the steering system, the steered angle ratio of the rear wheel (20) to the front wheel (7) may be controlled to be variable in accordance with the vehicle speed, wherein the vehicle speed is detected by a cooperative combination of a sensor (34) for detecting the shift position of a speed change gear (33) of the vehicle and a sensor (43) for detecting the number of revolutions per minute of an engine (42) of the vehicle.

Abstract translation: 一种用于车辆的转向系统，包括信号提供机构（34），用于提供相对于车速的信息信号（Su），其中控制后轮（20）与前轮（7）的转向角比 根据信息信号变化。 信号提供机构包括适于检测车辆的变速齿轮（33）的换档位置的传感器（34）。 在转向系统中，后轮（20）与前轮（7）的转向角度比可以根据车速来控制，其中车速通过传感器（ 34），用于检测车辆的变速齿轮（33）的换档位置，以及用于检测车辆的发动机（42）的转数的传感器（43）。

公开(公告)号：US4558877A

公开(公告)日：1985-12-17

申请号：US558151

申请日：1983-12-05

Applicant: Yoshimi Furukawa ,  Shoichi Sano ,  Hiroshi Takamatsu

Inventor： Yoshimi Furukawa ,  Shoichi Sano ,  Hiroshi Takamatsu

IPC: B62D7/14 ,  B62D7/15 ,  B62D7/00

CPC classification number: B62D7/1527

Abstract: A steering system for a vehicle including a front wheel and a rear wheel.The steering system comprises a steering wheel, a front wheel steering sub-system for steering the front wheel in accordance with the steering angle of the steering wheel, and a rear wheel steering sub-system for steering the rear wheel in accordance with the steering angle of the steering wheel. The rear wheel steering sub-system has a reaction mechanism for keeping substantially constant the steering torque necessary for turning the rear wheel.

Abstract translation: 一种用于车辆的转向系统，包括前轮和后轮。 转向系统包括方向盘，用于根据方向盘的转向角来转向前轮的前轮转向子系统和用于根据转向角转向后轮的后轮转向子系统 的方向盘。 后轮转向子系统具有使转向后轮所需的转向转矩保持大致恒定的反作用机构。

公开(公告)号：US4295657A

公开(公告)日：1981-10-20

申请号：US107718

申请日：1979-12-28

Applicant: Shoichi Sano ,  Yoshimi Furukawa

Inventor： Shoichi Sano ,  Yoshimi Furukawa

IPC: B62D6/00 ,  B62D7/14 ,  B62D7/15 ,  B62D7/00

CPC classification number: B62D7/1527

Abstract: A steering apparatus for a four-wheeled vehicle including a pair of pivotable knuckle arms connected to a pair of respective front wheels and actuatable through a steering gear by rotational movement of a steering wheel. One of the knuckle arms is pivotally connected to one end of a connector rod extending longitudinally of the vehicle, the other end of the connector rod being connected to a cam plate slidable in a housing. The cam plate has an inverted S-shaped cam groove or alternatively an S-shaped cam groove within which is slidably received a pin mounted on a tie rod pivotally connected between a pair of pivotable support arms supporting a pair of rear wheels, respectively. Due to the shape of the cam groove, the rear wheels are turned in the same direction as the front wheels when the steering wheel is rotated through a relatively small angle, and the rear and front wheels are turned in opposite directions when the steering wheel is rotated through a relatively large angle.

Abstract translation: 一种用于四轮车辆的转向装置，包括一对可枢转的转向节臂，连接到一对相应的前轮，并且可通过方向盘的旋转运动通过舵机致动。 转向节臂中的一个枢转地连接到沿着车辆纵向延伸的连接杆的一端，连接杆的另一端连接到可在壳体中滑动的凸轮板。 凸轮板具有倒置的S形凸轮槽或可选地S形的凸轮槽，其内部可滑动地容纳安装在连杆上的销，该销可枢转地连接在支撑一对后轮的一对可枢转支撑臂之间。 由于凸轮槽的形状，当方向盘以相对较小的角度旋转时，后轮沿与前轮相同的方向转动，并且当方向盘为方向盘时，后轮和前轮相反方向转动 旋转相对较大的角度。

公开(公告)号：US4984646A

公开(公告)日：1991-01-15

申请号：US323496

申请日：1989-03-14

Applicant: Shoichi Sano ,  Yoshimi Furukawa ,  Akihiko Takei ,  Yutaka Nishi ,  Yasuaki Ohno

Inventor： Shoichi Sano ,  Yoshimi Furukawa ,  Akihiko Takei ,  Yutaka Nishi ,  Yasuaki Ohno

IPC: B62D5/00 ,  B62D6/00 ,  B62D101/00 ,  B62D113/00 ,  B62D119/00 ,  B62D137/00

CPC classification number: B62D5/006 ,  B62D5/001 ,  B62D6/002

Abstract: A steering system for a motor vehicle having power steering means including an actuator for turning steerable road wheels of the motor vehicle includes a control mechanism for eliminating a deviation between a desired direction of travel of the motor vehicle and an actual direction of travel of the motor vehicle, based on an output signal from a direction indicating mechanism which indicates the desired direction and an output signal from a direction detecting mechanism which detects the actual direction. The control mechanism determines a target turning angle for the steerable road wheels dependent on the deviation between the desired direction and the actual direction, and controls the power steering mechanism to turn the steerable road wheels up to the target turning angle.

公开(公告)号：US4772036A

公开(公告)日：1988-09-20

申请号：US35646

申请日：1987-04-07

Applicant: Shoichi Sano ,  Yoshimi Furukawa ,  Masami Ogura ,  Masaru Abe ,  Yasuharu Oyama

Inventor： Shoichi Sano ,  Yoshimi Furukawa ,  Masami Ogura ,  Masaru Abe ,  Yasuharu Oyama

IPC: B62D7/15 ,  B62D5/10

CPC classification number: B62D7/1545 ,  Y10T74/18208 ,  Y10T74/18256

Abstract: A steering system for the front and rear wheels of an automotive vehicle comprises a front wheel steering mechanism having an output shaft, a rear wheel steering mechanism having an input shaft coupled to the output shaft, an output member for steering the rear wheels, and a motion converting mechanism for converting rotation of the input shaft to movement of the output member, a vehicle speed sensor, and a control unit connected to the vehicle speed sensor for controlling operation of the motion converting mechanism dependent on the vehicle speed detected by the vehicle speed sensor. The motion converting mechanism comprises a shaft angularly movable by the input shaft, the shaft having an arm extending radially from one end thereof, a guide mounted on the output member and extending in a vertical direction transverse to an axis of the output member, a slide assembly disposed between and interconnecting the arm and the guide, and a drive device controlled by the control unit for moving the slide assembly along the guide.

Abstract translation: 用于机动车辆的前轮和后轮的转向系统包括具有输出轴的前轮转向机构，具有联接到输出轴的输入轴的后轮转向机构，用于转向后轮的输出构件和 运动转换机构，用于将输入轴的旋转转换为输出部件的运动，车速传感器和连接到车速传感器的控制单元，用于根据车速检测的运动转换机构的运转来控制运动转换机构 传感器。 运动转换机构包括可由输入轴角度运动的轴，该轴具有从其一端径向延伸的臂，安装在输出构件上并沿垂直于输出构件的轴线的垂直方向延伸的导向件，滑块 所述组件设置在所述臂和所述引导件之间并使其相互连接，以及由所述控制单元控制的用于沿着所述引导件移动所述滑动组件的驱动装置。

公开(公告)号：US4553768A

公开(公告)日：1985-11-19

申请号：US553704

申请日：1983-11-21

Applicant: Yoshimi Furukawa ,  Shoichi Sano ,  Hiroshi Takamatsu ,  Makoto Sato

Inventor： Yoshimi Furukawa ,  Shoichi Sano ,  Hiroshi Takamatsu ,  Makoto Sato

IPC: B62D7/15 ,  B62D7/00

CPC classification number: B62D7/1527

Abstract: A rear suspension for a vehicle including a vehicle body, front and rear wheels and a steering system for steering both the front and rear wheels by a steering wheel.The rear suspension comprises a rear sheel support member for supporting the rear wheels with respect to the vehicle body and a biasing mechanism, interposed between the vehicle body and the rear wheel support member, for biasing the rear wheel to restore the steering position thereof to the neutral position thereof.The rear wheel support member may comprise a shock absorber and a lower arm while the biasing mechanism may be a rubber bush.

Abstract translation: 一种用于车辆的后悬架，包括车体，前轮和后轮以及用于通过方向盘来转向前轮和后轮的转向系统。 后悬架包括用于相对于车体支撑后轮的后轮支撑构件和设置在车体和后轮支撑构件之间的偏置机构，用于偏压后轮以将其转向位置恢复到 中性位置。 后轮支撑构件可以包括减震器和下臂，同时偏置机构可以是橡胶衬套。