公开(公告)号：US5178249A

公开(公告)日：1993-01-12

申请号：US813690

申请日：1991-12-27

申请人： Kyosuke Haga ,  Satoshi Ashida ,  Yukihiro Tanigawa

发明人： Kyosuke Haga ,  Satoshi Ashida ,  Yukihiro Tanigawa

IPC分类号： F16D35/00 ,  F16D43/284 ,  F16D47/06

CPC分类号： F16D43/284 ,  F16D35/00 ,  F16D35/005 ,  F16D47/06

摘要： A rotary coupling for torque transmission is arranged between two relatively rotatable shafts to transmit a rotational torque in response to a rotational speed difference therebetween. The device includes a housing connected to the first shaft for rotation therewith, a clutch means for transmitting rotational torque between two shafts, and a piston which thrusts the clutch means in the axial direction. The rotary coupling also includes a rotor received in a cylindrical space, in which a high viscous fluid is filled to be compulsorily moved by the rotor. Each side surface of the rotor is provided with plural depressions at regular interval in the circumferential direction. The depressions have inclining surfaces inclining in the rotational direction of the rotor. When a rotational speed difference occurs between the two shafts, wedge effects occur between the inclined surfaces and the housing and between the inclined surface and the piston so that a high pressure is generated in the space section quickly.

摘要翻译： 用于扭矩传递的旋转联轴器设置在两个相对旋转的轴之间，以响应于它们之间的转速差而传递旋转扭矩。 该装置包括连接到第一轴以与其一起旋转的壳体，用于在两个轴之间传递旋转扭矩的离合器装置和沿轴向推动离合器装置的活塞。 旋转联轴器还包括容纳在圆柱形空间中的转子，其中高粘性流体被填充以被转子强制地移动。 转子的每个侧表面在圆周方向上以规则间隔设置有多个凹部。 凹部具有在转子的旋转方向上倾斜的倾斜面。 当在两个轴之间产生转速差时，在倾斜表面和壳体之间以及倾斜表面和活塞之间产生楔形效应，使得在空间部分中快速产生高压。

公开(公告)号：US4610614A

公开(公告)日：1986-09-09

申请号：US696514

申请日：1985-01-30

申请人： Kyosuke Haga ,  Tsuneo Tanaka ,  Toshifumi Sakai

发明人： Kyosuke Haga ,  Tsuneo Tanaka ,  Toshifumi Sakai

IPC分类号： F01C21/08 ,  F04C2/344 ,  F04C15/00 ,  F04C18/00

CPC分类号： F01C21/0863 ,  F04C15/0049 ,  F04C2/3446

摘要： In a vane pump, a pump housing contains a cam ring having an internal cam surface, in which a rotor carrying eight vanes is rotatable by a drive shaft. A pair of side plates positioned in the receiving bore in contact engagement with the opposite end surface of the cam ring, the internal cam surface and the rotor define a pump chamber. Each of the side plates is formed at its inside surface contacting the cam ring with a pair of intake ports, a pair of exhaust ports and a vane back pressure groove. This groove is always filled with pressurized fluid supplied from the exhaust ports such that the pressurized fluid is directed into vane support slits formed in the rotor. The angular width between the start point of each of the intake ports and the start point of one of the exhaust ports is chosen to an angle of 90 degrees which is twice the pitch of the vanes, and the angular width of each of the exhaust ports is chosen to be not larger than or angular width which outer end surfaces of two successive vanes make, whereby the volume of pressurized fluid which leaks from the vane back pressure groove towards the intake ports through a clearance between the rotor and each side plate can be maintained constant.

摘要翻译： 在叶片泵中，泵壳体包含具有内部凸轮表面的凸轮环，其中承载八个叶片的转子可由驱动轴旋转。 定位在接收孔中的一对侧板与凸轮环的相对端表面接触接合，内凸轮表面和转子限定泵室。 每个侧板在其与凸轮环接触的内表面形成有一对进气口，一对排气口和叶片背压槽。 该槽总是填充有从排气口供应的加压流体，使得加压流体被引导到形成在转子中的叶片支撑狭缝中。 每个进气口的起始点与其中一个排气口的起点之间的角度宽度被选择为90度的角度，该角度是叶片间距的两倍，并且每个排气口的角度宽度 被选择为不大于或两个连续叶片的外端表面的角度宽度，由此通过转子和每个侧板之间的间隙从叶片背压槽向进气口泄漏的加压流体的体积可以是 保持不变。

公开(公告)号：US4246577A

公开(公告)日：1981-01-20

申请号：US935779

申请日：1978-08-22

申请人： Yoshio Shima ,  Kyosuke Haga ,  Kunihiko Eto ,  Tetsuro Yamakage

发明人： Yoshio Shima ,  Kyosuke Haga ,  Kunihiko Eto ,  Tetsuro Yamakage

IPC分类号： B23B47/24 ,  B23B49/00 ,  G05B19/4065 ,  G01B11/14 ,  G08B21/00

CPC分类号： B23B49/001 ,  B23Q17/2241 ,  G05B19/4065 ,  G05B2219/37245 ,  G05B2219/45129

摘要： A tool breakage detecting apparatus is provided with a preset counter to be preset with a predetermined value. The content of the counter is subtracted one by one each time either one of a tool and a workpiece to be machined is moved a unit distance toward the other thereof from a cutting movement start position being spaced a predetermined distance from the other thereof. If the content of the counter is reduced an amount corresponding to a distance larger than the predetermined distance, tool breakage is detected.

摘要翻译： 工具破损检测装置设置有预设有预定值的预设计数器。 每当工具和要加工的工件中的任一个从距离另一个间隔预定距离的切割移动开始位置朝向另一个移动单位距离时，逐个减去计数器的内容。 如果计数器的内容减少了对应于大于预定距离的距离的量，则检测到刀具断裂。

公开(公告)号：US5474145A

公开(公告)日：1995-12-12

申请号：US304923

申请日：1994-09-13

申请人： Kyosuke Haga ,  Miko Suzuki ,  Kenichi Fukumura ,  Hideya Kato ,  Seiho Kawakami ,  Kaname Saito

发明人： Kyosuke Haga ,  Miko Suzuki ,  Kenichi Fukumura ,  Hideya Kato ,  Seiho Kawakami ,  Kaname Saito

IPC分类号： B62D5/07 ,  B62D5/06 ,  B62D6/02

CPC分类号： B62D6/02 ,  B62D5/062

摘要： A hydraulic power steering system includes a pump, a flow control valve, and a bypass control valve. The flow control valve responds to a pressure drop across a metering orifice disposed in a fluid supply passage so as to control the flow rate of operational fluid by bypassing part of the operational fluid to a reservoir. A spring chamber of the flow control valve is connected to the supply passage through a control orifice. The bypass control valve is disposed between the spring chamber and the reservoir so as to increase the amount of bypassed fluid by controlling the pressure in the spring chamber. The bypass control valve has a control spool, a load pressure introduction port connected to the upstream side of the control orifice for leading the load pressure to a first end of the control spool and a pilot port connected to the downstream side of the control orifice for leading the pressure in the spring chamber of the flow control valve to a second end of the control spool. Moreover, a pressure receiving area of the second end of the control spool is smaller than that of the first end of the control spool. Accordingly, a spring having a small spring constant can be used in the bypass control valve, even when the control spool is controlled within a short stroke.

摘要翻译： 液压动力转向系统包括泵，流量控制阀和旁通控制阀。 流量控制阀响应设置在流体供应通道中的计量孔的压降，以便通过将部分操作流体旁路到储存器来控制操作流体的流速。 流量控制阀的弹簧室通过控制孔连接到供给通道。 旁通控制阀设置在弹簧室和储存器之间，以通过控制弹簧室中的压力来增加旁路流体的量。 旁通控制阀具有控制阀芯，连接到控制孔的上游侧的负载压力引入口，用于将负载压力引导到控制阀芯的第一端，以及连接到控制孔的下游侧的先导端口， 将流量控制阀的弹簧室中的压力引导到控制阀芯的第二端。 此外，控制阀芯的第二端的受压面积小于控制阀芯的第一端的受压面积。 因此，即使控制阀芯在短行程内被控制，也可以在旁通控制阀中使用弹簧常数小的弹簧。

公开(公告)号：US5046933A

公开(公告)日：1991-09-10

申请号：US450081

申请日：1989-12-13

申请人： Kyosuke Haga ,  Tsuneo Tanaka ,  Makoto Kawahara ,  Tatsuya Yamamoto

发明人： Kyosuke Haga ,  Tsuneo Tanaka ,  Makoto Kawahara ,  Tatsuya Yamamoto

IPC分类号： F04C15/00

CPC分类号： F04C15/0049

摘要： In a vane pump, a pump housing assembly contains a cam ring having an internal cam surface. A rotor carrying plural vanes is disposed within the cam ring and rotated by a drive shaft. Both end surfaces of the cam ring contact with a pair of flat contact surfaces formed within the pump housing assembly, respectively, and the vanes define plural pump sectors between the rotor and the cam ring, together with the rotor, the cam ring and the pair of contact surfaces. The contact surfaces are formed with a pair of intake ports and a pair of exhaust ports. Furthermore, one of the contact surfaces is provided with a pair of pressure leaking grooves formed at locations between the intake ports and the exhaust ports. The locations of the pressure leaking grooves are chosen so as to leak fluid in pump sectors communicating with the exhaust ports to adjacent pump sectors communicating with the intake ports through passages formed by the pressure leaking grooves and the side edges of vanes located between the two pump sectors whenever the instantaneous pressure of the fluid in the exhaust ports approaches an instantaneous maximum pressure. With this operation, the instantaneous maximum pressure is decreased, thereby the amplitude of the pressure pulsation being reduced.

公开(公告)号：US4452274A

公开(公告)日：1984-06-05

申请号：US268380

申请日：1981-05-29

申请人： Kyosuke Haga ,  Tsuneo Tanaka

发明人： Kyosuke Haga ,  Tsuneo Tanaka

IPC分类号： B62D5/083 ,  B62D5/22 ,  F15B9/10

CPC分类号： B62D5/083 ,  Y10T137/86646

摘要： A rotary valve for a power steering system includes a valve sleeve in which a rotor is rotatably carried for controlling fluid flow from a supply pump to a cylinder of the power steering system. A plurality of lands are formed on the outer periphery of the rotor, at least three of which have the same configuration. A plurality of lands are formed on the inner periphery of the valve sleeve, at least two of which have the same configuration to thereby vary the areas of two orifices formed between the three lands of the rotor and the two lands of the valve sleeve at the same rate during relative rotation therebetween. Further, the edge portions of the three lands of the rotor are formed with two longitudinally curved slopes so as to provide an optimum two-step valving characteristic. Furthermore, two of lands formed on the rotor have at each side edge portion thereof a longitudinaly curved and radially extending wall so as to form additional orifice areas to provide an optimum valving characteristic by combining the same with the above two orifice areas.

摘要翻译： 一种用于动力转向系统的旋转阀包括阀套，其中转子被可转动地承载，用于控制从供给泵到动力转向系统的气缸的流体流动。 在转子的外周上形成有多个平台，其中至少三个具有相同的构造。 在阀套的内周形成有多个平台，其中至少两个具有相同的构造，从而改变在转子的三个平台和阀套的两个平台之间形成的两个孔的面积 在它们之间的相对旋转期间相同的速率。 此外，转子的三个台阶的边缘部分形成有两个纵向弯曲的斜面，以便提供最佳的两阶段阀门特性。 此外，形成在转子上的两个区域在其每个侧边缘部分处具有纵向弯曲和径向延伸的壁，以便形成附加的孔面积，以通过将其与上述两个孔口区域组合而提供最佳阀门特性。

公开(公告)号：US4189963A

公开(公告)日：1980-02-26

申请号：US928250

申请日：1978-07-26

申请人： Yoshikazu Sano ,  Kyosuke Haga ,  Kengo Yoshioka

发明人： Yoshikazu Sano ,  Kyosuke Haga ,  Kengo Yoshioka

IPC分类号： B23Q16/06 ,  B23Q16/10 ,  G01B5/24 ,  B23B29/24 ,  B23Q17/00

CPC分类号： B23Q16/102 ,  Y10T74/1418 ,  Y10T74/1424 ,  Y10T74/1447 ,  Y10T74/1476 ,  Y10T74/1488

摘要： An index apparatus for indexing a rotary table rotatably and vertically slidably received within a base, comprises a pair of coupling members secured to the rotary table and the base, respectively, and engageable with each other. The rotary table is lifted and lowered by a hydraulic actuator. The rotary table is rotated by a drive means including a drive motor. Generating means are provided to generate a signal each time the rotary table is rotated a unit angle. Control means are provided to reduce the rotational speed of the rotary table in response to the number of signals generated from the generating means, when the rotary table is rotated to a position spaced a predetermined angular distance from a desired angular position thereof. Control means also cause the rotation of the rotary table to stop in response to the number of signals from the generating means, when the rotary table is rotated to the desired angular position thereof.

摘要翻译： 一种用于将旋转台可转动并垂直地可滑动地容纳在基座内的转台的分度装置，包括分别固定到旋转台和底座并可彼此接合的一对联接构件。 旋转台由液压执行器升降。 旋转台由包括驱动马达的驱动装置旋转。 提供生成装置以在每次旋转台旋转单位角度时产生信号。 提供控制装置，用于响应于从发生装置产生的信号的数量，当旋转台旋转到与其期望的角位置间隔预定的角距离的位置时，减小旋转台的旋转速度。 当旋转台旋转到其期望的角位置时，控制装置还响应于来自发生装置的信号的数量使旋转台的旋转停止。

公开(公告)号：US5638912A

公开(公告)日：1997-06-17

申请号：US339229

申请日：1994-11-10

申请人： Kyosuke Haga ,  Mikio Suzuki ,  Katsuhisa Mori

发明人： Kyosuke Haga ,  Mikio Suzuki ,  Katsuhisa Mori

IPC分类号： B62D5/07 ,  B62D5/083

CPC分类号： B62D5/083

摘要： A power steering apparatus is composed a fluid source for discharging pressurized fluid, a power cylinder, a control valve responsive to operation of a steering wheel for supplying the power cylinder with pressurized fluid from the fluid source, and a reservoir. The control valve has a first control portion for controlling the flow of pressurized fluid from the fluid source to the reservoir, and a second control portion for controlling the flow of pressurized fluid to the power cylinder. The first control portion has four paths communicating with the fluid source and the reservoir, and each of the four paths is formed with a center-open variable orifice which opens when the control valve is in a neutral state. The second control portion has two supply paths communicating with the fluid source and a pair of chambers of the power cylinder, each of the two supply paths is formed with a semi-center-open variable orifice which opens when the control valve is in the neutral state, and two drain paths communicating with the chambers of the power cylinder and the reservoir, each of the two drain paths is formed with a center-closed variable orifice of which closes when the control valve is in the neutral state.

摘要翻译： 动力转向装置包括用于排出加压流体的流体源，动力缸，响应于操作方向盘的控制阀，用于向动力缸提供来自流体源的加压流体和储存器。 控制阀具有用于控制加压流体从流体源流向储存器的第一控制部分和用于控制加压流体流向动力缸的第二控制部分。 第一控制部分具有与流体源和储存器连通的四个路径，并且四个路径中的每一个路径形成有当控制阀处于中立状态时打开的中心可开启​​的可变孔口。 第二控制部具有与流体源连通的两个供给路径和动力缸的一对室，两个供给路径中的每一个形成有半中心开口的可变孔，当控制阀处于中立状态时打开 状态和与动力缸和储存器的腔室连通的两个排放路径，两个排水路径中的每一个形成有中心闭合的可变孔口，当控制阀处于空档状态时，其可关闭。

公开(公告)号：US5577573A

公开(公告)日：1996-11-26

申请号：US357757

申请日：1994-12-16

申请人： Kyosuke Haga ,  Mikio Suzuki ,  Yoshiharu Inaguma ,  Kenichi Fukumura ,  Hideya Kato

发明人： Kyosuke Haga ,  Mikio Suzuki ,  Yoshiharu Inaguma ,  Kenichi Fukumura ,  Hideya Kato

IPC分类号： B62D5/06 ,  B62D6/02

CPC分类号： B62D5/062 ,  B62D6/02

摘要： A hydraulic power steering system includes a pump, a flow control valve, and a bypass control valve. The flow control valve responds to a pressure drop across a metering orifice disposed in a fluid supply passage so as to control the flow rate of operating fluid by bypassing a part of the operating fluid to a reservoir. A spring chamber of the flow control valve is connected to the supply passage through a control orifice. The bypass control valve is disposed between the spring chamber and the reservoir so as to increase the amount of bypassed fluid by controlling the pressure in the spring chamber. The bypass control valve has a control spool, a load pressure introduction port connected to the upstream side of the control orifice for leading the load pressure to a first end of the control spool and a pilot port connected to the downstream side of the control orifice for leading the pressure in the spring chamber of the flow control valve to a second end of the control spool. Moreover, a pressure receiving area of the second end of the control spool is smaller than that of the first end of the control spool. Accordingly, a spring having a small spring constant can be used in the bypass control valve, even when the control spool is controlled within a short stroke. Further, the control spool, the load pressure introduction port, and the pilot port are formed in a sleeve.

摘要翻译： 液压动力转向系统包括泵，流量控制阀和旁通控制阀。 流量控制阀响应设置在流体供应通道中的计量孔的压降，以便通过将一部分工作流体绕过储存器来控制工作流体的流量。 流量控制阀的弹簧室通过控制孔连接到供给通道。 旁通控制阀设置在弹簧室和储存器之间，以通过控制弹簧室中的压力来增加旁路流体的量。 旁通控制阀具有控制阀芯，连接到控制孔的上游侧的负载压力引入口，用于将负载压力引导到控制阀芯的第一端，以及连接到控制孔的下游侧的先导端口， 将流量控制阀的弹簧室中的压力引导到控制阀芯的第二端。 此外，控制阀芯的第二端的受压面积小于控制阀芯的第一端的受压面积。 因此，即使控制阀芯在短行程内被控制，也可以在旁通控制阀中使用弹簧常数小的弹簧。 此外，控制阀芯，负载压力引入口和先导端口形成在套筒中。

公开(公告)号：US5439070A

公开(公告)日：1995-08-08

申请号：US75307

申请日：1993-06-11

申请人： Kyosuke Haga ,  Mikio Suzuki ,  Yoshiharu Inaguma ,  Kenichi Fukumura ,  Hideya Kato ,  Katsuhisa Mori

发明人： Kyosuke Haga ,  Mikio Suzuki ,  Yoshiharu Inaguma ,  Kenichi Fukumura ,  Hideya Kato ,  Katsuhisa Mori

IPC分类号： B62D5/083 ,  B62D6/02 ,  F04B49/22 ,  B62D5/08

CPC分类号： B62D6/02 ,  B62D5/083 ,  F04B49/225 ,  F04B2205/06 ,  F04B2205/08 ,  F15B2211/45

摘要： A power steering apparatus having a hydraulic pump for outputting a pressurized fluid, an assist force generation mechanism hydraulically connected to the pump through a supply passage to generate an assist force in response to rotation of a steering wheel, wherein the assist force generation mechanism has a characteristic that the back pressure thereof increases when the steering wheel is rotated. The power steering apparatus further comprises a flow control valve having a spool which is moved in response to a pressure drop at a metering orifice disposed in the middle of the supply passage, so as to control the flow rate of the pressurized fluid to be constant. The spring chamber of the flow control valve is connected to a reservoir through a drain passage, and a drain valve is disposed in the drain passage for allowing the flow of pressurized fluid from the spring chamber to the reservoir when the back pressure of the assist force generation mechanism is low, and for prohibiting the flow of the pressurized fluid when the back pressure of the assist force generation mechanism increases.

摘要翻译： 一种动力转向装置，其具有用于输出加压流体的液压泵，辅助力产生机构，其通过供给通道与泵液压连接，以产生响应于方向盘旋转的辅助力，其中辅助力产生机构具有 其特征在于当方向盘旋转时其背压增加。 动力转向装置还包括流量控制阀，该流量控制阀具有响应于设置在供给通道中间的计量孔口处的压降而移动的阀芯，以便控制加压流体的流量恒定。 流量控制阀的弹簧室通过排水通道连接到储存器，并且排水阀设置在排水通道中，用于当加压流体从弹簧室流到储存器时，当辅助力的背压 发电机构低，并且当辅助力产生机构的背压增加时禁止加压流体的流动。