公开(公告)号：US06401854B2

公开(公告)日：2002-06-11

申请号：US09756235

申请日：2001-01-09

申请人： Kazuhiko Yano ,  Toshiro Azuma ,  Ryota Ohashi

发明人： Kazuhiko Yano ,  Toshiro Azuma ,  Ryota Ohashi

IPC分类号： B60K17356

CPC分类号： B60K17/356 ,  B60K7/0015 ,  B60K17/105 ,  B60K23/08 ,  B60Y2200/223

摘要： A first hydraulic pump P1 driven by power of an engine and a first hydraulic motor M1 are fluidly connected so as to form a closed fluid circuit. An output shaft 2 of first hydraulic motor M1 is drivingly connected with a sub-transmission 3. The output power from sub-transmission 3 drives main-driving wheels 5 and also drives a second hydraulic pump P2 fluidly connected with a second hydraulic motor M2 for driving sub-driving wheels 6. A clutch 7 is interposed between an output shaft 4 of sub-transmission 3 and an input shaft 9 of second hydraulic pump P2 or on the output side of second hydraulic motor M2. Second hydraulic pump P2 or second hydraulic motor M2 has variable displacement, so that second hydraulic motor M2 is drivingly accelerated in proportion to the degree of turning operation of a steering operating tool 31. In case that a plurality of front reel mowers 8FL, 8FM and 8FR are disposed in front of the vehicle body, a pair of decelerator casings 29 are disposed on both lateral sides of transmission casing 1 for driving main-driving wheels 5. Decelerator casings 29 project horizontally forward and support main-driving wheels 5 respectively at their front portions. Middle front reel mower 8FM is disposed between left and right decelerator casings 29.

摘要翻译： 由发动机的动力和第一液压马达M1驱动的第一液压泵P1流体地连接，形成封闭的流体回路。 第一液压马达M1的输出轴2与副变速器3驱动连接。副变速器3的输出动力驱动主驱动轮5，并且还驱动与第二液压马达M2流体连接的第二液压泵P2 驱动副驱动轮6.离合器7介于副变速器3的输出轴4和第二液压泵P2的输入轴9之间或第二液压马达M2的输出侧。 第二液压泵P2或第二液压马达M2具有可变排量，使得第二液压马达M2与转向操作工具31的转动程度成比例地驱动地加速。在多个前卷线锯机8FL，8FM和 8FR设置在车身前方，一对减速器壳体29设置在变速器壳体1的两侧，用于驱动主驱动轮5.减速器壳体29分别水平向前突出并支撑主驱动轮5 前部。 中间前卷取机8FM设置在左右减速箱28之间。

公开(公告)号：US06196348B1

公开(公告)日：2001-03-06

申请号：US09119631

申请日：1998-07-21

申请人： Kazuhiko Yano ,  Toshiro Azuma ,  Ryota Ohashi

发明人： Kazuhiko Yano ,  Toshiro Azuma ,  Ryota Ohashi

IPC分类号： B60K17356

CPC分类号： B60K17/356 ,  B60K7/0015 ,  B60K17/105 ,  B60K23/08 ,  B60Y2200/223

摘要： A first hydraulic pump P1 driven by power of an engine and a first hydraulic motor M1 are fluidly connected so as to form a closed fluid circuit. An output shaft 2 of first hydraulic motor M1 is drivingly connected with a subtransmission 3. The output power from sub-transmission 3 drives main-driving wheels 5 and also drives a second hydraulic pump P2 fluidly connected with a second hydraulic motor M2 for driving sub-driving wheels 6. A clutch 7 is interposed between an output shaft 4 of sub-transmission 3 and an input shaft 9 of second hydraulic pump P2 or on the output side of second hydraulic motor M2. Second hydraulic pump P2 or second hydraulic motor M2 has variable displacement, so that second hydraulic motor M2 is drivingly accelerated in proportion to the degree of turning operation of a steering operating tool 31. In case that a plurality of front reel mowers 8FL, 8FM and 8FR are disposed in front of the vehicle body, a pair of decelerator casings 29 are disposed on both lateral sides of transmission casing 1 for driving main-driving wheels 5. Decelerator casings 29 project horizontally forward and support main-driving wheels 5 respectively at their front portions. Middle front reel mower 8FM is disposed between left and right decelerator casings 29.

摘要翻译： 由发动机的动力和第一液压马达M1驱动的第一液压泵P1流体地连接，形成封闭的流体回路。 第一液压马达M1的输出轴2与副变速器3驱动连接。来自副变速器3的输出动力驱动主驱动轮5，并且还驱动与第二液压马达M2流体连接的第二液压泵P2，以驱动副 驱动轮6.离合器7插入在副变速器3的输出轴4和第二液压泵P2的输入轴9之间或第二液压马达M2的输出侧。 第二液压泵P2或第二液压马达M2具有可变排量，使得第二液压马达M2与转向操作工具31的转动程度成比例地驱动地加速。在多个前卷取机割草机8FL，8FM和 8FR设置在车身前方，一对减速器壳体29设置在变速器壳体1的两侧，用于驱动主驱动轮5.减速器壳体29分别水平向前突出并支撑主驱动轮5 前部。 中间前卷取机8FM设置在左右减速箱28之间。

公开(公告)号：US4886142A

公开(公告)日：1989-12-12

申请号：US211912

申请日：1988-06-27

申请人： Kojiro Yamaoka ,  Toshiro Azuma ,  Kazuhiko Yano ,  Ryota Ohashi

发明人： Kojiro Yamaoka ,  Toshiro Azuma ,  Kazuhiko Yano ,  Ryota Ohashi

IPC分类号： B60K17/356

CPC分类号： B60K17/356

摘要： A hydraulic four-wheel drive apparatus for driving by a hydraulic motor four wheels: steering wheels and driving wheels, in which the steering wheels are driven by a variable capacity motor for the steering wheels and a front differential gear unit, and the driving wheels are driven by a fixed capacity motor for the driving wheels, so that, when a vehicle turns, a swash plate of the variable capacity motor associates with operation of a steering handle, thereby accelerating the speeds of steering wheels.

摘要翻译： 一种液压四轮驱动装置，用于通过液压马达驱动四轮：方向盘和驱动轮，其中方向盘由用于方向盘的可变容量马达和前差速齿轮单元驱动，并且驱动轮是 由用于驱动轮的固定容量电动机驱动，使得当车辆转动时，可变容量电动机的斜盘与转向手柄的操作相关联，从而加速方向盘的速度。

公开(公告)号：US5163293A

公开(公告)日：1992-11-17

申请号：US717477

申请日：1991-06-19

申请人： Toshiro Azuma ,  Hideaki Okada ,  Ryota Ohashi

发明人： Toshiro Azuma ,  Hideaki Okada ,  Ryota Ohashi

IPC分类号： B60K17/10 ,  F16H39/08 ,  F16H47/02

CPC分类号： B60K17/105

摘要： An improvement in the conventional axle driving apparatus in which a pair of crescent oil passages open at a motor mounting surface of a center section are formed across an upper half casing and a lower half casing.The improved axle driving apparatus of the present invention is designed to uniformly disperse and receive by the upper and lower half casings the radial load acting on the swash plate holder formed across the joint surface between both the upper and lower half casings, thereby expecting a low manufacturing cost of the axle casing.

摘要翻译： 在上半壳体和下半壳体上形成有在中心部分的电动机安装面上开口的一对新月形油路的常规车轴驱动装置的改进。 本发明的改进的车轴驱动装置被设计成通过上半壳和下半壳均匀地分散和接收作用在横跨两个上下半壳之间的接合表面上的斜盘支架上的径向载荷，从而预期低 轴套的制造成本。

公开(公告)号：US5495712A

公开(公告)日：1996-03-05

申请号：US261995

申请日：1994-06-17

申请人： Kazuhiko Yano ,  Shigenori Sakikawa ,  Ryota Ohashi

发明人： Kazuhiko Yano ,  Shigenori Sakikawa ,  Ryota Ohashi

IPC分类号： F04B1/20 ,  B60K17/10 ,  F01B3/00 ,  F04B9/02 ,  F16D39/00

CPC分类号： F01B3/0032 ,  B60K17/105

摘要： A variable displacement type hydraulic system is contained in a housing. A guide is provided on an axis of slanting movement of a swash plate. The guide is fitted into an inner ring of a roller bearing. The roller bearing is fitted into a groove formed at an inner wall of the housing and a groove formed at a cylinder block mounting surface of a center section so as to be fixedly positioned in the housing. In accordance with the invention, sliding resistance of the swash plate is reduced to improve the ability of the swash plate to return to the neutral position.

摘要翻译： 可变排量型液压系统包含在壳体中。 在旋转斜盘的倾斜运动轴上提供导轨。 导轨安装在滚子轴承的内圈中。 滚子轴承装配在形成在壳体的内壁上的槽中，并且形成在中心部分的气缸体安装表面处的槽，以便固定地定位在壳体中。 根据本发明，斜盘的滑动阻力减小，以提高斜盘回到中立位置的能力。

公开(公告)号：US4096882A

公开(公告)日：1978-06-27

申请号：US752198

申请日：1976-12-20

申请人： Kazuhiko Yano ,  Kazuhiko Otsuki ,  Ryota Ohashi

发明人： Kazuhiko Yano ,  Kazuhiko Otsuki ,  Ryota Ohashi

IPC分类号： F16D48/02 ,  F15B13/06

CPC分类号： F16D25/14 ,  F16D48/02 ,  F16D2048/0209 ,  F16D2048/0212 ,  F16D2048/0221 ,  Y10T137/86662 ,  Y10T137/87169 ,  Y10T137/87177

摘要： A control valve having a rotor for communicating outlet port or ports selectively to fluid drain port or to inlet port so as to change flow direction of fluid to be supplied to fluid operated apparatus. The control valve comprises first and second pistons inserted in a hollow space of the rotor and a compression spring arranged between the pistons. At the operation position(s) of the rotor or the valve, the first piston which is biased by the compression spring oscillatingly blocks and reopens fluid passage formed within the rotor outside the first piston for communicating the inlet port to the outlet port(s) under the influence of the compression spring and fluid pressure of the outlet port(s) from which fluid is constantly drained with a small rate through the valve. Fluid pressure of the outlet port may be varied by varying the force of the compression spring by an advance of the second piston. Consequently, by controlling the advance of the second piston, fluid pressure of the outlet port(s), namely fluid pressure applied to the fluid operated apparatus may be controlled. The control valve thus functions not only as a change-over valve but as a valve for controlling fluid pressure applied to fluid operated apparatus.

摘要翻译： 一种控制阀，具有用于将出口或端口选择性地连接到流体排放口或入口端口的转子，以便改变供给流体驱动装置的流体的流动方向。 控制阀包括插入在转子的中空空间中的第一和第二活塞以及布置在活塞之间的压缩弹簧。 在转子或阀门的操作位置，由压缩弹簧偏压的第一活塞在第一活塞外部摆动并重新打开形成在第一活塞外部的转子内的流体通道，用于将入口连通到出口， 在压缩弹簧和出口的流体压力的影响下，流体通过阀门以较小的速率不断地排出。 出口的流体压力可以通过第二活塞的前进改变压缩弹簧的力来改变。 因此，通过控制第二活塞的前进，可以控制出口端口的流体压力，即施加到流体操作装置的流体压力。 因此，控制阀不仅用作转换阀，而且用作用于控制施加到流体操作装置的流体压力的阀。

公开(公告)号：US07971435B2

公开(公告)日：2011-07-05

申请号：US11735398

申请日：2007-04-13

申请人： Hironori Sumomozawa ,  Shigenori Sakikawa ,  Ryota Ohashi

发明人： Hironori Sumomozawa ,  Shigenori Sakikawa ,  Ryota Ohashi

IPC分类号： F16D31/02

CPC分类号： F16D31/02

摘要： A hydraulic transmission comprises a hydraulic pump and a hydraulic motor, which are mounted onto a center section to be fluidly connected to each other through a closed fluid circuit formed in the center section. A neutral valve is connected to the closed fluid circuit. The neutral valve is fitted into an outward opened end of a vertical slanted oil hole of the closed fluid circuit. Alternatively, the neutral valve is fitted into an outward opened end of a straight oil hole having an opposite outward opened end into which a charge check valve is fitted.

摘要翻译： 液压变速器包括液压泵和液压马达，其通过形成在中心部分中的封闭流体回路安装在中心部分上以彼此流体连接。 中性阀连接到封闭的流体回路。 中性阀安装在封闭流体回路的垂直倾斜油孔的向外开口端。 或者，中性阀装配到具有相对的向外开口端的直油孔的向外开口端中，安装充电止回阀。

公开(公告)号：US07905711B2

公开(公告)日：2011-03-15

申请号：US11781510

申请日：2007-07-23

申请人： Yasuhisa Mochizuki ,  Ryota Ohashi

发明人： Yasuhisa Mochizuki ,  Ryota Ohashi

IPC分类号： F04B1/12 ,  F04B27/08

CPC分类号： F04B23/10 ,  F04B23/106 ,  F04B23/12 ,  F04C2/102 ,  F04C11/005

摘要： There is provided a multiple pump unit including a pump shaft, a first pump, a pump housing, a second pump and a fluid passage block connected to one end surface in an axis line direction of the pump housing. One or both contacting surfaces of the pump housing and the fluid passage block is formed with a concave portion for accommodating the second pump. The pump housing is provided with a suction fluid passage guiding hydraulic fluid to a suction opening of the first pump and a first pump discharge fluid passage having a distal end that forms a first pump discharge port. The fluid passage block is provided with a second pump discharge port having the second pump as a hydraulic source.

摘要翻译： 提供了一种多泵单元，包括泵轴，第一泵，泵壳体，第二泵和连接到泵壳体的轴线方向上的一个端面的流体通道块。 泵壳体和流体通道块的一个或两个接触表面形成有用于容纳第二泵的凹部。 泵壳体设置有将液压流体引导到第一泵的吸入口的抽吸流体通道和具有形成第一泵排出口的远端的第一泵排出流体通道。 流体通道块设置有具有作为液压源的第二泵的第二泵排出口。

公开(公告)号：US20100257856A1

公开(公告)日：2010-10-14

申请号：US12820604

申请日：2010-06-22

申请人： Masahisa Kawamura ,  Ryota Ohashi ,  Hironori Sumomozawa ,  Takeaki Nozaki

发明人： Masahisa Kawamura ,  Ryota Ohashi ,  Hironori Sumomozawa ,  Takeaki Nozaki

IPC分类号： F16H39/00

CPC分类号： F04B1/22 ,  B60K17/28 ,  F04B23/06 ,  F04B23/106 ,  F16D31/02 ,  F16D31/08 ,  F16H39/14 ,  F16H61/4139

摘要： There is provided a pump unit configured to be capable of transmitting a rotational per from a driving power source which is operatively connected thereto to an actuator through a pair of hydraulic fluid lines. The pump unit includes: an input shaft; a hydraulic pump main body; a PTO shaft; a PTO clutch mechanism; and auxiliary pump main body; a suction line; a discharge line; a charge line; a PTO hydraulic fluid line; a pressure-reducing valve; and a resistance valve. The PTO hydraulic fluid line and the charge line are fluidly connected to the primary side and a secondary side of the pressure-reducing valve, respectively.

摘要翻译： 提供了一种泵单元，其构造成能够通过一对液压流体管线将来自与其可操作地连接的驱动动力源的旋转传递到致动器。 泵单元包括：输入轴; 液压泵主体; 一个PTO轴; PTO离合器机构; 和辅助泵主体; 吸力线 排放线 充电线 PTO液压油管线; 减压阀; 和电阻阀。 PTO液压流体管线和加料管路分别与减压阀的初级侧和次级侧流体连接。

公开(公告)号：US20090260354A1

公开(公告)日：2009-10-22

申请号：US12431467

申请日：2009-04-28

申请人： Kenichi TAKADA ,  Ryota Ohashi ,  Hironori Sumomozawa ,  Hiroaki Shimizu

发明人： Kenichi TAKADA ,  Ryota Ohashi ,  Hironori Sumomozawa ,  Hiroaki Shimizu

IPC分类号： F16D31/02

CPC分类号： B60K17/105 ,  F01B3/02 ,  F02B61/00 ,  F16D31/02 ,  F16H39/14 ,  Y10T74/2066 ,  Y10T74/2186

摘要： An axle driving apparatus in which a hydraulic pump and a hydraulic motor which constitute a hydrostatic transmission are disposed on a center section. In a horizontal portion of the center section are provided a pair of linear oil passages in parallel to each other. A pair of arcuate ports are provided on a pump mounting surface formed on the horizontal portion of the center section. The pair of arcuate ports are substantially perpendicular with respect to the direction in which the oil passages extend. The axis of slanting movement of a movable swash plate of the hydraulic pump extends laterally of the vehicle body on which the axle driving apparatus is provided. The rotating direction of an arm provided on a control shaft for slantingly operating the movable swash plate is coincident with the operating direction of a control rod connected with a speed changing member. Thus, the link mechanism for connecting the speed changing member and the control arm for the movable swash plate is simplified.

摘要翻译： 其中构成静液压变速器的液压泵和液压马达设置在中心部分上的车轴驱动装置。 在中心部分的水平部分中设置有彼此平行的一对直线油道。 一对弧形端口设置在形成在中心部分的水平部分上的泵安装表面上。 一对弓形端口相对于油路延伸的方向基本垂直。 液压泵的可动斜盘的倾斜运动的轴线在设置有车轴驱动装置的车身的侧面上延伸。 设置在用于倾斜地操作可动斜盘的控制轴上的臂的旋转方向与与变速构件连接的控制杆的操作方向一致。 因此，用于连接变速构件和用于可动斜盘的控制臂的连杆机构被简化。