公开(公告)号：US4483547A

公开(公告)日：1984-11-20

申请号：US407433

申请日：1982-08-12

Applicant: Yoshimi Furukawa ,  Shoichi Sano

Inventor： Yoshimi Furukawa ,  Shoichi Sano

IPC: B62D7/14 ,  B62D7/15

CPC classification number: B62D7/1527

Abstract: A steering device for a vehicle provided with a steering wheel, front wheels and a front wheel steering mechanism, rear wheels and a rear wheel steering mechanism, a pair of rear wheel steering tie rods for respectively connecting the rear wheels to the rear wheel steering mechanism, and an operating shaft which connects the front and rear wheel steering mechanisms, the rear wheels being steered along with the front wheels in response to steering operation of the steering wheels. The rear wheel steering mechanism of the steering device comprises a plurality of rotary members operatively cooperating so as to rotate together, with the operating shaft being connected to the rotational center of one of the rotary members and the inner ends of the tie rods being connected to two of the rotary members at positions displaced from the rotational center, respectively. With such device, the rear wheels are rotated in the same direction as that of the front wheels under rotation of the rotary members during low steering angle operation of the steering wheel, and during large steering angle operation of the steering wheel the rear wheels are steered in a direction opposite to that of the front wheels or the steering angle of the rear wheels is reset to zero or near zero. The rear wheel steering mechanism is constructed so as to be very compact, and with high mechanical strength.

Abstract translation: 一种用于车辆的转向装置，其具有方向盘，前轮和前轮转向机构，后轮和后轮转向机构，一对后轮转向系杆，用于将后轮分别连接到后轮转向机构 以及连接前轮和后轮转向机构的操作轴，响应于方向盘的转向操作，后轮与前轮一起转向。 转向装置的后轮转向机构包括多个旋转构件，其可操作地协作以一起旋转，其中操作轴连接到一个旋转构件的旋转中心，并且拉杆的内端连接到 两个旋转构件分别位于从旋转中心位移的位置。 利用这样的装置，在方向盘的低转向角度操作期间，后轮在旋转构件的旋转的同时在与前轮相同的方向上旋转，并且在方向盘的大的转向角操作期间，后轮被转向 在与前轮的方向相反的方向上或后轮的转向角被重置为零或接近零。 后轮转向机构的结构非常紧凑，机械强度高。

公开(公告)号：US4412594A

公开(公告)日：1983-11-01

申请号：US296070

申请日：1981-08-25

Applicant: Yoshimi Furukawa ,  Shoichi Sano

Inventor： Yoshimi Furukawa ,  Shoichi Sano

IPC: B62D7/15 ,  B62D5/06

CPC classification number: B62D7/159 ,  B62D7/1581

Abstract: A motor vehicle steering system for steering rearward wheels as well as forward wheels. The steering system includes a sensor for sensing at least a turning motion of the motor vehicle, a computer for processing signals from the sensor, and an actuator controllable by the computer for steering the rearward wheels in order to meet driving conditions of the vehicle while turning, as much as possible. The sensor may comprise a lateral acceleration or yaw angular velocity sensor, or a combination of a steering angle sensor and a lateral acceleration or yaw angular velocity sensor, or a combination of a steering angle sensor and an acceleration and deceleration sensor, or the like. A steered angle ratio .gamma. of the rearward wheels to forward wheels is selected to be in the range of 0

Abstract translation: 用于转向后轮以及前轮的机动车转向系统。 转向系统包括用于感测机动车辆的至少转动运动的传感器，用于处理来自传感器的信号的计算机以及可由计算机控制的用于转向后轮的致动器，以便在转动时满足车辆的行驶条件 ， 越多越好。 传感器可以包括横向加速度或偏航角速度传感器，或转向角传感器和横向加速度或偏航角速度传感器的组合，或转向角传感器和加速和减速传感器的组合等。 当车辆以80km / h以上的速度移动时，后轮与前轮的转向角度γ被选择在0 <γ<0.6的范围内。

公开(公告)号：US4313514A

公开(公告)日：1982-02-02

申请号：US107717

申请日：1979-12-28

Applicant: Yoshimi Furukawa ,  Shoichi Sano

Inventor： Yoshimi Furukawa ,  Shoichi Sano

IPC: B62D6/02 ,  B62D7/14 ,  B62D7/15 ,  B62D5/06

CPC classification number: B62D7/1545

Abstract: A steering apparatus for vehicles which includes a pinion rotatably mounted on an arm movable longitudinally in response to turning movement of a steering wheel, and a pair of longitudinally movable racks held in meshing engagement with the pinion. One of the racks is operatively coupled with front wheels of the vehicle and with a pivot arm pivotable on a movable pivot which is displaceable along the pivot arm in response to vehicle speeds. The other rack is coupled through a pivotable lever with an arm which is pivotally mounted on the pivot arm and is operatively coupled with the rear wheels. When the steering wheel is turned, the front and rear wheels are turned in the same direction or in opposite directions, depending on the position of the movable pivot on the pivot arm, which position is a function of the vehicle speed. The front and rear wheels are turned in the same direction when the vehicle is running at a high speed, and in opposite directions when the vehicle is running at a low speed. The racks and pinion may be dispensed with and the front wheels operatively coupled only through a connecting rod pivotally connected to a pivot arm pivotally mounted on a movable pivot, the rear wheels being pivotally connected through an arm to the pivot arm.

Abstract translation: 一种用于车辆的转向装置，包括可旋转地安装在臂上的臂，其响应于方向盘的转动而可纵向移动;以及一对保持与小齿轮啮合的纵向移动齿条。 其中一个机架与车辆的前轮可操作地联接，并且具有可枢转在可移动枢轴上的枢转臂，该枢转臂可响应于车辆速度沿枢转臂移动。 另一个机架通过可枢转的杠杆联接，臂与枢转地安装在枢转臂上并与后轮可操作地联接的臂。 当方向盘转动时，取决于枢转臂上的可动枢轴的位置，前轮和后轮在相同方向或相反方向转动，该位置是车速的函数。 当车辆高速行驶时，前轮和后轮以相同的方向转动，并且当车辆以低速行驶时，前轮和后轮相反方向转动。 可以省去齿条和小齿轮，并且前轮仅通过可枢转地连接到可枢转地安装在可动枢轴上的枢转臂的连杆操作地联接，后轮通过臂枢转地连接到枢转臂。