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1. 发明授权

US4369852A Power steering apparatus for vehicles 失效
标题翻译：车辆动力转向装置
公开(公告)号：US4369852A
公开(公告)日：1983-01-25
申请号：US226911
申请日：1981-01-21
申请人： Masao Nishikawa , Yoshihiko Toshimitsu , Akira Iwasaki , Katsuhiko Fujimoto
发明人： Masao Nishikawa , Yoshihiko Toshimitsu , Akira Iwasaki , Katsuhiko Fujimoto
IPC分类号： B62D5/12 , B62D5/22
CPC分类号： B62D5/22
摘要： Power steering apparatus for a vehicle comprising a rack rod operatively connected to a steering wheel and supported in a steering gear casing, the rack rod being drivable by a power cylinder consisting of an outer cylinder fixed to the steering gear casing, an inner cylinder disposed in the outer cylinder and fitted into the steering gear casing, and a piston mounted on the rack rod to divide the interior of the inner cylinder into first and second oil chambers. A control valve is mounted on the lower surface of the steering gear casing for controlling the operation of the power cylinder. The second oil chamber is in communication with the outer cylinder via the spaces between the coils of a coil spring, the inner cylinder being supported in floating state on the outer cylinder by the coil spring. A pair of parallel, annular or semi-annular oil passages are provided in that portion of the steering gear casing which is engaged with the inner cylinder. The oil passages are respectively in communication with a pair of output ports of the control valve. The oil passages are also in communication at respective upper portions thereof with the outer cylinder and the first oil chamber separately. Due to these internally provided oil passages, the number of parts and assembly steps of the apparatus can be minimized. Because the inner cylinder is supported in floating state by the coil spring on the outer cylinder, it can be kept concentric therewith so that the piston can be operated smoothly at all times. The mounting of the control valve under the gear casing leaves a large space above the gear casing for the installation of the engine.
摘要翻译：一种用于车辆的动力转向装置，包括操作性地连接到方向盘并被支撑在转向齿轮箱中的齿条杆，所述齿条杆可由由固定到所述舵机壳体的外筒组成的动力缸驱动，外筒并装配到转向齿轮箱中，以及安装在齿条上的活塞，以将内筒的内部分成第一和第二油室。控制阀安装在舵机壳体的下表面上，用于控制动力缸的操作。第二油室经由螺旋弹簧的线圈之间的空间与外筒连通，内筒由螺旋弹簧以浮动状态支撑在外筒上。在与内筒接合的转向齿轮箱的该部分中设置有一对平行的环形或半环形的油通道。油路分别与控制阀的一对输出口连通。油路也分别与外筒和第一油室在其各自的上部连通。由于这些内部提供的油通道，装置的部件数量和组装步骤可以最小化。由于内筒通过外筒上的螺旋弹簧以浮动状态支撑，所以可以与内筒保持同心，使得活塞能够始终平稳地操作。控制阀在齿轮箱下面的安装在齿轮箱上方留出了大的空间，用于安装发动机。

2. 发明授权

US4369695A Power steering apparatus for vehicle 失效
标题翻译：车辆动力转向装置
公开(公告)号：US4369695A
公开(公告)日：1983-01-25
申请号：US171015
申请日：1980-07-21
申请人： Masao Nishikawa , Yoshihiko Toshimitsu , Takashi Aoki
发明人： Masao Nishikawa , Yoshihiko Toshimitsu , Takashi Aoki
IPC分类号： B62D5/083 , F15B9/08
CPC分类号： B62D5/083 , Y10T137/86638
摘要： A power steering apparatus for a vehicle comprising a valve housing provided with a rotary type valve body rotatable in one direction or another by a turning operation of a steering shaft. An oil supply port is connected to an oil pressure pump that is selectively connected to either of one or another of cylinder ports connected to respective left and right chambers of a power cylinder. The valve body is provided with an intermediate partition plate extending into an oil pressure reaction chamber in the valve housing to divide the chamber into areas on opposite sides of the partition plate. The resultant pair of areas extend respectively on either side in the turning direction of the valve body, and the respective areas are connected to one or the other of the cylinder ports.
摘要翻译：一种用于车辆的动力转向装置，包括阀壳体，该阀壳体设置有通过转向轴的转动操作沿一个方向可旋转的旋转式阀体。供油口连接到油压泵，该油压泵选择性地连接到连接到动力缸的相应左和右室的一个或另一个气缸端口中的一个。阀体设置有延伸到阀壳体中的油压反应室中的中间隔板，以将腔室分隔成分隔板的相对侧的区域。所得到的一对区域分别在阀体的转动方向上的任一侧延伸，并且各个区域连接到气缸端口中的一个或另一个。

3. 发明授权

US4154317A Power steering apparatus for a vehicle 失效
标题翻译：用于车辆的动力转向装置
公开(公告)号：US4154317A
公开(公告)日：1979-05-15
申请号：US859112
申请日：1977-12-08
申请人： Masao Nishikawa , Yoshihiko Toshimitsu , Takashi Aoki
发明人： Masao Nishikawa , Yoshihiko Toshimitsu , Takashi Aoki
IPC分类号： B62D6/02 , B62D6/00 , B62D5/08
CPC分类号： B62D6/00
摘要： A power steering apparatus for a vehicle comprising a center open type changeover valve which, on turning of a steering shaft, is moved to be changed over from a neutral straight running position to either of left and right steering positions so that an oil supply passage connected to an operation oil pressure source and an oil discharge passage connected to a return tank are selectively and respectively connected to the left and right chambers of a power cylinder. On one side of the changeover valve is at least one oil pressure reaction chamber which is connected through an oil passage to the oil supply passage to urge the changeover valve to return to its neutral straight running position on the changeover movement of the changeover valve in either direction. The operation oil pressure source is so constructed to provide increased delivery amount according to increase of vehicle speed. A throttle is interposed in the oil supply passage downstream of the connecting point of the oil supply passage with the oil passage to the reaction chamber.
摘要翻译：一种用于车辆的动力转向装置，包括中心开式转换阀，其在转向轴转动时，从中立直行驶位置转换到左转向位置和右转向位置之间，使得供油通道连接选择性地分别连接到动力油缸的左室和右室的操作油压源和连接到回油箱的排油通道。在切换阀的一侧是至少一个油压反应室，其通过油路连接到供油通道，以在转换阀的转换运动中促使转换阀返回其中性直线运行位置方向。操作油压源被构造成根据车速的增加提供增加的输送量。在供油通道下游的供油通道中，油路通向反应室。

4. 发明授权

US4000785A Power steering apparatus for a vehicle 失效
标题翻译：用于车辆的动力转向装置
公开(公告)号：US4000785A
公开(公告)日：1977-01-04
申请号：US602518
申请日：1975-08-06
申请人： Masao Nishikawa , Yoshihiko Toshimitsu , Takashi Aoki
发明人： Masao Nishikawa , Yoshihiko Toshimitsu , Takashi Aoki
IPC分类号： B62D6/02 , B62D5/08
CPC分类号： B62D6/02
摘要： Power steering apparatus comprising a displaceable changeover value operated in one direction or the other by turning of a steering shaft so that an oil supply passage connected to an oil pressure pump is placed into communication with either a right chamber or a left chamber of a power cylinder. At least one external oil pressure reaction chamber is arranged to be reduced in volume by the operation in either direction of the changeover valve, the oil pressure reaction chamber being in communication through a first throttle with the oil supply passage and through a second throttle with an exterior oil tank. At least one of the two throttles is variable in size in proportion to vehicle speed so that the ratio of the area of opening of the first throttle relative to the second throttle can be increased according to increase of vehicle speed.
摘要翻译：动力转向装置包括通过转向转轴在一个方向上操作的可移位转换值，使得连接到油压泵的供油通道与动力缸的右室或左室连通。至少一个外部油压反应室被布置成通过在转换阀的任一方向上的操作来减小体积，油压反应室通过与供油通道的第一节气门连通，并且通过第二节气门与外部油箱。两个节流阀中的至少一个与车速成比例地变化，从而可以根据车速的增加来增大第一节气门的开度面积与第二节气门的比例。

5. 发明授权

US4299302A Power steering device for vehicles 失效
标题翻译：车辆动力转向装置
公开(公告)号：US4299302A
公开(公告)日：1981-11-10
申请号：US92499
申请日：1979-11-08
申请人： Masao Nishikawa , Yoshihiko Toshimitsu , Toshihiko Aoyama , Tokuro Takaoka , Takashi Aoki , Yoichi Sato
发明人： Masao Nishikawa , Yoshihiko Toshimitsu , Toshihiko Aoyama , Tokuro Takaoka , Takashi Aoki , Yoichi Sato
IPC分类号： B62D5/08 , B62D5/22 , B62D3/12 , B62D5/10 , F15B9/10
CPC分类号： B62D5/22
摘要： An improved power steering device which has a pinion shaft connected with a steering wheel, a rack rod which is connected with steerable wheels and whose rack is in mesh with the pinion of the pinion shaft in the gear box, a power cylinder for hydraulically actuating the rack rod, and a changeover valve for selectively connecting the first and second hydraulic chambers of the power cylinder with the hydraulic pressure source and the oil reservoir. The pinion shaft is rotatably supported in the oscillating cage which is rotatably mounted on the gear box in a manner such that the axis of the oscillating cage is offset a certain distance from the axis of the pinion shaft, whereby the oscillating cage rotates about its axis when the steering torque is applied to the pinion shaft. The oscillating cage is connected with the changeover valve so that the latter is actuated by the rotary movement of the oscillating cage. With this construction, the changeover valve can be made to respond accurately to the steering torque and at the same time it is possible to reduce the size and simplify the structure of the device.
摘要翻译：一种改进的动力转向装置，其具有与方向盘连接的小齿轮轴，与可转向轮连接并且其齿条与齿轮箱中的小齿轮轴的小齿轮啮合的齿条杆，用于液压致动机架杆和用于选择性地将动力缸的第一和第二液压室与液压源和储油器连接的切换阀。小齿轮轴被可旋转地支撑在摆动保持架中，该摆动保持器以可旋转的方式安装在齿轮箱上，使得摆动保持架的轴线偏离小齿轮轴的轴线一定距离，由此摆动保持架围绕其轴线旋转当转向扭矩施加到小齿轮轴时。摆动保持架与转换阀连接，使后者通过摆动槽的旋转运动而被驱动。通过这种结构，可以使切换阀对转向转矩进行准确的响应，同时可以减小尺寸并简化装置的结构。

6. 发明授权

US3994361A Power steering apparatus in a vehicle 失效
标题翻译：车辆中的动力转向装置
公开(公告)号：US3994361A
公开(公告)日：1976-11-30
申请号：US621941
申请日：1975-10-10
申请人： Masao Nishikawa , Yoshihiko Toshimitsu , Takashi Aoki
发明人： Masao Nishikawa , Yoshihiko Toshimitsu , Takashi Aoki
IPC分类号： B62D5/22 , B62D6/02 , B62D5/08
CPC分类号： B62D5/22 , B62D6/02
摘要： A power steering apparatus of a vehicle having a changeover valve operated in one direction or the other according to the turning of a steering shaft so that a supply oil passage connected to an operational oil pressure source is connected selectively to the left or right chamber of a power cylinder. At least one oil pressure reaction chamber is arranged externally of the changeover valve to be reduced in volume by the operation in either direction of the changeover valve to oppose such operation. A control valve connects the oil pressure reaction chamber to the supply oil passage via a second oil passage. A divergent exhaust oil passage is connected to the second oil passage via a throttle. A control member, such as an exhaust pump, is connected to the exhaust oil passage to produce oil flow therein at a flow rate related to vehicle speed, the control valve including a resilient element acting therein to normally urge the control valve to an open position, excessive oil pressure in the exhaust oil passage acting on the control valve to urge the same to closed position.
摘要翻译：一种车辆的动力转向装置，其具有根据转向轴的转动而沿一个方向或另一方向操作的转换阀，使得连接到操作油压源的供油通道选择性地连接到操作油压源的左室或右室动力缸。至少一个油压反应室设置在转换阀的外部，通过在切换阀的任一方向上的操作来减小体积，以反对这种操作。控制阀通过第二油路将油压反应室连接到供油通道。发散的废油通道经由节流阀连接到第二油路。诸如排气泵的控制构件连接到排气油通道，以与车辆速度相关的流量产生油流，该控制阀包括作用在其中的弹性元件，以将控制阀正常地推动到打开位置在作用在控制阀上的排气油通道中的油压过大，以将其推到关闭位置。

7. 发明授权

US3973640A Power steering apparatus for a vehicle 失效
标题翻译：用于车辆的动力转向装置
公开(公告)号：US3973640A
公开(公告)日：1976-08-10
申请号：US605819
申请日：1975-08-19
申请人： Masao Nishikawa , Yoshihiko Toshimitsu , Takashi Aoki
发明人： Masao Nishikawa , Yoshihiko Toshimitsu , Takashi Aoki
IPC分类号： B62D5/22 , B62D6/02 , B62D5/08
CPC分类号： B62D6/02 , B62D5/22
摘要： Power steering apparatus comprising a changeover valve adapted to be operated in one direction or the other by turning of a steering shaft so that a supply oil passage connected to an operational oil pressure source is selectively connected to a right or left chamber of a power cylinder. At least one external oil pressure reaction chamber is arranged to be reduced in volume by the operation in either direction of the changeover valve to resist displacement thereof, the oil pressure reaction chamber being connected through a first oil passage to a control pressure source for delivery of oil at a pressure corresponding to vehicle speed. The first oil passage is connected through a second oil passage to the supply oil passage and a control valve is mounted in the second oil passage to be opened when the pressure within the first oil passage is higher by a predetermined value than the pressure within the supply oil passage. A throttle can be connected in series with the control valve in the second oil passage and a spring loaded relief valve can be provided in a by-pass passage connected in parallel to the second oil passage.
摘要翻译：动力转向装置包括转换阀，其适于通过转向转向而在一个方向上操作，使得连接到操作油压源的供油通道选择性地连接到动力缸的右室或左室。至少一个外部油压反应室被布置成通过在转换阀的任一方向上的操作来减小体积，以阻止其移动，油压反应室通过第一油通道连接到控制压力源，以输送油在对应于车速的压力下。第一油路通过第二油路连接到供油通道，并且当第一油通道内的压力高于供给源内的压力的预定值时，控制阀安装在第二油通道中以打开油通道。节气门可以与第二油路中的控制阀串联连接，并且可以在与第二油通道并联连接的旁通通道中设置弹簧加载的安全阀。

8. 发明授权

US4401180A Power steering device for vehicles 失效
标题翻译：车辆动力转向装置
公开(公告)号：US4401180A
公开(公告)日：1983-08-30
申请号：US272027
申请日：1981-06-09
申请人： Masao Nishikawa , Yoshihiko Toshimitsu , Toshihiko Aoyama , Tokuro Takaoka , Takashi Aoki , Yoichi Sato
发明人： Masao Nishikawa , Yoshihiko Toshimitsu , Toshihiko Aoyama , Tokuro Takaoka , Takashi Aoki , Yoichi Sato
IPC分类号： B62D5/08 , B62D5/22 , B62D3/12 , B62D5/10 , F15B9/10
CPC分类号： B62D5/22
摘要： An improved power steering device which has a pinion shaft connected with a steering wheel, a rack rod which is connected with steerable wheels and whose rack is in mesh with the pinion of the pinion shaft in the gear box, a power cylinder for hydraulically actuating the rack rod, and a changeover valve for selectively connecting the first and second hydraulic chambers of the power cylinder with the hydraulic pressure source and the oil reservoir. The pinion shaft is rotatably supported in the oscillating cage which is rotatably mounted on the gear box in a manner such that the axis of the oscillating cage is offset a certain distance from the axis of the pinion shaft, whereby the oscillating cage rotates about its axis when the steering torque is applied to the pinion shaft. The oscillating cage is connected with the changeover valve so that the latter is actuated by the rotary movement of the oscillating cage. With this construction, the changeover valve can be made to respond accurately to the steering torque and at the same time it is possible to reduce the size and simplify the structure of the device.
摘要翻译：一种改进的动力转向装置，其具有与方向盘连接的小齿轮轴，与可转向轮连接并且其齿条与齿轮箱中的小齿轮轴的小齿轮啮合的齿条杆，用于液压致动机架杆和用于选择性地将动力缸的第一和第二液压室与液压源和储油器连接的切换阀。小齿轮轴被可旋转地支撑在摆动保持架中，该摆动保持器以可旋转的方式安装在齿轮箱上，使得摆动保持架的轴线偏离小齿轮轴的轴线一定距离，由此摆动保持架围绕其轴线旋转当转向扭矩施加到小齿轮轴时。摆动保持架与转换阀连接，使后者通过摆动槽的旋转运动而被驱动。通过这种结构，可以使切换阀对转向转矩进行准确的响应，同时可以减小尺寸并简化装置的结构。

9. 发明授权

US4391342A Steering mechanism for vehicles equipped with power steering system 失效
标题翻译：配备动力转向系统的车辆转向机构
公开(公告)号：US4391342A
公开(公告)日：1983-07-05
申请号：US239492
申请日：1981-03-02
申请人： Masao Nishikawa , Yoshihiko Toshimitsu , Toshihiko Aoyama , Tokuro Takaoka , Takashi Aoki , Yoichi Sato
发明人： Masao Nishikawa , Yoshihiko Toshimitsu , Toshihiko Aoyama , Tokuro Takaoka , Takashi Aoki , Yoichi Sato
IPC分类号： B66C23/32 , B62D1/16 , B62D5/06 , B62D6/02
CPC分类号： B62D5/06 , B62D1/16 , B62D6/02
摘要： A steering mechanism for vehicle equipped with a power steering system, the steering mechanism including a resilient element, such as a torsion bar, which is interposed in a path of torque transmission between a steering wheel and a power steering unit which provides an increased steering reactive force in proportion to vehicle speed. The steering mechanism includes a damper arrangement disposed between two relatively rotatable members which are operably associated with each other through the resilient element. The damper arrangement attenuates torsional vibrations of a first one of the relatively rotatable members disposed on the side of the steering wheel, such vibrations being caused by the interposed resilient element and the moment of inertia of the steering wheel.
摘要翻译：一种配有动力转向系统的车辆转向机构，该转向机构包括一个诸如扭力杆的弹性元件，该扭力杆置于方向盘和动力转向单元之间的转矩传递路径中，该转向传动装置提供增加的转向反作用力与车速成正比。转向机构包括设置在两个相对旋转的构件之间的阻尼器装置，它们通过弹性元件可操作地相互联接。阻尼器装置衰减设置在方向盘一侧的相对旋转的构件中的第一个的扭转振动，这种振动是由插入的弹性元件和方向盘的惯性矩引起的。

10. 发明授权

US4240331A Power steering apparatus for vehicle 失效
标题翻译：车辆动力转向装置
公开(公告)号：US4240331A
公开(公告)日：1980-12-23
申请号：US928076
申请日：1978-07-26
申请人： Masao Nishikawa , Yoshihiko Toshimitsu , Takashi Aoki
发明人： Masao Nishikawa , Yoshihiko Toshimitsu , Takashi Aoki
IPC分类号： B62D5/083 , F15B13/14
CPC分类号： B62D5/083 , Y10T137/86638
摘要： A power steering apparatus for a vehicle comprising a valve housing provided with a rotary type valve body rotatable in one direction or another by a turning operation of a steering shaft. An oil supply port is connected to an oil pressure pump that is selectively connected to either of one or another of cylinder ports connected to respective left and right chambers of a power cylinder. The valve body is provided with an intermediate partition plate extending into an oil pressure reaction chamber in the valve housing to divide the chamber into areas on opposite sides of the partition plate. The resultant pair of areas extend respectively on either side in the turning direction of the valve body, and the respective areas are connected to one or the other of the cylinder ports.
摘要翻译：一种用于车辆的动力转向装置，包括阀壳体，该阀壳体设置有通过转向轴的转动操作沿一个方向可旋转的旋转式阀体。供油口连接到油压泵，该油压泵选择性地连接到连接到动力缸的相应左和右室的一个或另一个气缸端口中的一个。阀体设置有延伸到阀壳体中的油压反应室中的中间隔板，以将腔室分隔成分隔板的相对侧的区域。所得到的一对区域分别在阀体的转动方向上的任一侧延伸，并且各个区域连接到气缸端口中的一个或另一个。

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