公开(公告)号：US20080217991A1

公开(公告)日：2008-09-11

申请号：US12101724

申请日：2008-04-11

申请人： Koji IWAKI ,  Norihiro Ishii ,  Shigenori Sakikawa ,  Katsumoto Mizukawa ,  Manabu Kawakami ,  Kentaro Nagata

发明人： Koji IWAKI ,  Norihiro Ishii ,  Shigenori Sakikawa ,  Katsumoto Mizukawa ,  Manabu Kawakami ,  Kentaro Nagata

IPC分类号： B60B35/16

CPC分类号： B62D11/001 ,  B60K17/043 ,  B60K17/105 ,  B60K17/356 ,  B60Y2200/221 ,  B60Y2200/223 ,  B62D7/18 ,  B62D9/002 ,  F16H39/14

摘要： A transaxle (1), having a hydraulic drive unit (20) and a pair of left and right wheel support units (2L and 2R), is suspended from a vehicle frame so as to be turnable around a turning-center axis oriented in a fore-and-aft direction of a vehicle. The hydraulic drive unit (20) comprises: a pair of left and right hydraulic motors (23L and 23R) having respective left and right horizontal motor shafts (23b); a center section (22) formed therein with an oil passage for hydraulically connecting at least one of the hydraulic motors to a hydraulic pump, the center section having motor attachment surfaces onto which the hydraulic motors are attached; and a pair of left and right axle casings (2L and 2R) containing the respective hydraulic motors and supporting the respective motor shafts. The pair of wheel support units (30L and 30R), supporting respective left and right travel wheels (1L and 1R), are joined to respective outer ends of the left and right axle casings, and drivingly connected to the respective motor shafts (23b).

摘要翻译： 具有液压驱动单元（20）和一对左右轮支撑单元（2L和2R）的变速驱动桥（1）从车架悬挂以能够围绕转向中心轴定向 在车辆的前后方向。 液压驱动单元（20）包括：一对具有左右水平电动机轴（23b）的左右液压马达（23L和23R）; 其中形成有用于将至少一个所述液压马达液压连接到液压泵的油路的中心部分，所述中心部分具有安装有所述液压马达的马达安装表面; 以及一对包含各个液压马达并支撑各个马达轴的左右轴壳体（2L和2R）。 支撑各左右行车轮（1L，1R）的一对车轮支撑单元（30L，30R）与左右车轴箱的各自的外端接合，驱动地连接于各自的电动机 轴（23b）。

公开(公告)号：US07407030B2

公开(公告)日：2008-08-05

申请号：US11190880

申请日：2005-07-28

申请人： Toshifumi Yasuda ,  Shigenori Sakikawa ,  Hiroshi Kitagawara

发明人： Toshifumi Yasuda ,  Shigenori Sakikawa ,  Hiroshi Kitagawara

IPC分类号： B60K17/10

CPC分类号： A01D69/002 ,  B60K17/28 ,  B60K25/06 ,  B60Y2200/223 ,  Y10T74/19149

摘要： A pump system includes a housing, an input shaft, a pump shaft; a hydraulic pump body, a PTO shaft, a power transmission gear train, and a PTO clutch mechanism. The housing has a narrow gear accommodating space surrounding a region including a mesh point between the first and second transmission gears of the power transmission gear train, a PTO clutch accommodating space which surrounds the PTO clutch mechanism and which is fluidly communicated with the gear accommodating space, and a pair of first and second suction/discharge ports which communicate the internal space of the housing with an outside of the housing. The first suction/discharge port is arranged within the gear accommodating space so as to be positioned in an opposite side to the PTO clutch accommodating space with the mesh point between the first and second transmission gears interposed therebetween.

摘要翻译： 泵系统包括壳体，输入轴，泵轴; 液压泵体，PTO轴，动力传递齿轮系和PTO离合器机构。 壳体具有围绕包括动力传递齿轮系的第一和第二传动齿轮之间的网点的区域的窄齿轮容纳空间，围绕PTO离合器机构的PTO离合器容纳空间，并且与齿轮容纳空间流体连通 以及将壳体的内部空间与壳体的外部连通的一对第一和第二吸入/排出口。 第一吸入口和第二传动齿轮之间的网点位于齿轮容纳空间内，以便位于与PTO离合器容纳空间相反的一侧。

公开(公告)号：US07389847B2

公开(公告)日：2008-06-24

申请号：US10995551

申请日：2004-11-24

申请人： Shigenori Sakikawa

发明人： Shigenori Sakikawa

IPC分类号： B62D5/06 ,  B60K17/356 ,  B60K17/34

CPC分类号： F16H61/4069 ,  A01D69/03 ,  B60K17/356 ,  B62D5/061 ,  B62D11/00 ,  B62D12/00 ,  F16H61/4043 ,  F16H61/44 ,  F16H61/444 ,  F16H61/456

摘要： A hydraulic four-wheel driving articulated vehicle comprises: a first frame, on which first axles and a first hydraulic motor driving the first axles are mounted; a second frame, on which second axles and a second hydraulic motor driving the second axles are mounted, wherein the first and second frames are connected to each other so as to be relatively rotatable centering on a vertical axis by a steering operation; a hydraulic pump; a hydraulic circuit fluidly connecting the first and second hydraulic motors in series to the hydraulic pump, wherein the hydraulic circuit includes a passage interposed between the first and second hydraulic motors; and pressure control means for releasing oil from the passage between the first and second hydraulic motors when the first and second frames are relatively rotated by the steering operation of the stationary vehicle and backpressure oil discharged from the first and second hydraulic motors is excessively accumulated in the passage between the first and second hydraulic motors.

摘要翻译： 液压四轮驱动铰接车包括：第一框架，其上安装有第一轴和驱动第一轴的第一液压马达; 第二框架，其上安装有驱动第二轴的第二轴和第二液压马达，其中第一和第二框架彼此连接，以便通过转向操作以垂直轴为中心相对旋转; 液压泵; 将第一和第二液压马达串联流体连接到液压泵的液压回路，其中液压回路包括插在第一和第二液压马达之间的通道; 以及压力控制装置，用于当第一和第二框架相对于第一和第二液压马达的转向操作相对转动时，从第一和第二液压马达之间的通道中释放油，并且在第一和第二液压马达中排出的背压油被过度累积在 第一和第二液压马达之间的通道。

公开(公告)号：US07331177B2

公开(公告)日：2008-02-19

申请号：US11392871

申请日：2006-03-30

申请人： Shigenori Sakikawa ,  Ryota Ohashi

发明人： Shigenori Sakikawa ,  Ryota Ohashi

IPC分类号： F16D31/02

CPC分类号： F15B7/005 ,  F15B7/008 ,  F15B21/042 ,  F16H61/4017 ,  F16H61/4035 ,  F16H61/4131

摘要： A hydrostatic transaxle comprises: a housing, an interior space of the housing serving as a fluid sump; an axle supported by the housing; a hydrostatic transmission disposed in the housing so as to drive the axle, the hydrostatic transmission including a hydraulic pump disposed in the housing, a hydraulic motor disposed in the housing, and a center section disposed in the housing, wherein the hydraulic pump and the hydraulic motor are mounted onto the center section, and wherein the center section is formed therein with a fluid circuit for circulation of fluid between the hydraulic pump and the hydraulic motor, and formed with an outwardly opened hole connected to the fluid circuit; a valve holding member fitted into the hole; and a relief valve connected to the fluid circuit through valve holding member. The relief valve is provided with a fixed flow restricting means for passing a specific amount of fluid from a higher-pressurized portion of the fluid circuit to a lower-pressurized portion of the fluid circuit. The relief valve allows fluid after passing through the fixed flow restricting means to flow to the lower-pressurized portion of the fluid circuit when a differential pressure between a primary pressure of fluid before passing through the fixed flow restricting means and a secondary pressure of fluid after passing through the fixed flow restricting means is zero or within a predetermined range.

摘要翻译： 静液压驱动桥包括：壳体，所述壳体的内部空间用作流体槽; 由壳体支撑的轴; 设置在所述壳体中以驱动所述轴的静液传动装置，所述静液传动装置包括设置在所述壳体中的液压泵，设置在所述壳体中的液压马达和设置在所述壳体中的中心部分，其中所述液压泵和所述液压 电动机安装在中心部分上，其中中心部分形成有用于在液压泵和液压马达之间循环流体的流体回路，并且形成有连接到流体回路的向外开口的孔; 安装在孔中的阀保持构件; 以及通过阀保持构件连接到流体回路的安全阀。 安全阀设置有用于将特定量的流体从流体回路的较高加压部分传递到流体回路的较低加压部分的固定流量限制装置。 安全阀允许当通过固定流量限制装置的流体的初级压力与经过固定流量限制装置的流体的次级压力之间的压力在经过固定流动限制装置之后的流体流到流体回路的较低加压部分 通过固定流量限制装置是零或在预定范围内。

公开(公告)号：US20070207021A1

公开(公告)日：2007-09-06

申请号：US10594346

申请日：2005-03-25

申请人： Tatsuo Yamaguchi ,  Noboru Yamamoto ,  Toshiyuki Shin ,  Shigenori Sakikawa ,  Shingo Araki

发明人： Tatsuo Yamaguchi ,  Noboru Yamamoto ,  Toshiyuki Shin ,  Shigenori Sakikawa ,  Shingo Araki

IPC分类号： B66C1/00

CPC分类号： A01B59/067 ,  B62D49/02

摘要： A tractor of the present invention can reduce a manufacturing cost of a lift arm support body. The tractor is configured such that a lift arm is mounted on an upper portion of a transmission casing by way of a lift arm support body, the lift arm is hydraulically controllable by a hydraulic control valve by way of a hydraulic circuit body, and the hydraulic circuit body and the hydraulic control valve are fixed to the transmission casing as bodies separate from a lift arm support body.

摘要翻译： 本发明的拖拉机可以降低提升臂支撑体的制造成本。 拖拉机构造成使得提升臂通过提升臂支撑体安装在变速器壳体的上部上，提升臂由液压回路体由液压控制阀液压控制，液压 电路体和液压控制阀作为与提升臂支撑体分离的主体固定到变速器壳体。

公开(公告)号：US07228685B2

公开(公告)日：2007-06-12

申请号：US11594842

申请日：2006-11-09

申请人： Shigenori Sakikawa

发明人： Shigenori Sakikawa

IPC分类号： F16D31/02

CPC分类号： A01D69/03 ,  B60K17/043 ,  B60K17/105 ,  B60Y2200/225 ,  F16H39/14

摘要： An axle driving apparatus comprises: a common housing; a pair of coaxial axles disposed in the housing; a common input shaft for receiving power from a prime mover, the common input shaft being extended perpendicular to the axles in the housing and passed through a gap between the axles; and a pair of stepless transmissions sharing power from the common input shaft, and transmitting power to the respective axles. The pair of stepless transmissions are arranged in the housing symmetrically centered on an axis of the common input shaft. The axle driving apparatus further comprises: a PTO shaft disposed coaxially to the common input shaft; a clutch disposed in the housing and interposed between the common input shaft and the PTO shaft; and a brake which is applied simultaneously to disengagement of said clutch so as to prevent inertial rotation of said PTO shaft.

公开(公告)号：US20070107422A1

公开(公告)日：2007-05-17

申请号：US11651151

申请日：2007-01-09

申请人： Shigenori Sakikawa

发明人： Shigenori Sakikawa

IPC分类号： F16D31/02

CPC分类号： F15B7/006 ,  F04B53/16 ,  F15B7/008 ,  F16H39/14

摘要： A flywheel housing is partitioned by a partition wall disposed at an intermediate position in the lengthwise direction thereof to form a pair of housing portions in which a flywheel is accommodated in one housing portion, and an HST unit that receives power from the flywheel is installed in the other housing portion, the HST unit comprising an oil hydraulic motor, an oil hydraulic pump, an oil hydraulic circuit block containing an oil hydraulic circuit therein and supporting one end of an oil hydraulic motor shaft and one end of an oil hydraulic pump shaft, and a cover housing secured to the oil hydraulic circuit block to cover the oil hydraulic motor and the oil hydraulic pump and support the other end of the oil hydraulic motor shaft and the other end of the oil hydraulic pump shaft; the oil hydraulic circuit block being secured to the flywheel housing.

摘要翻译： 飞轮壳体由设置在其长度方向上的中间位置处的分隔壁分隔开，以形成一对壳体部分，其中飞轮容纳在一个壳体部分中，并且将从飞轮接收动力的HST单元安装在 另一个壳体部分，HST单元包括油压马达，油压泵，含有油压回路的油压回路块，支撑油压马达轴的一端和油压泵轴的一端， 以及盖壳体，其固定在所述油压回路块上以覆盖所述油压马达和所述油压泵，并且支撑所述油压马达轴的另一端和所述油压泵轴的另一端; 油压回路块固定在飞轮壳体上。

公开(公告)号：US20060269421A1

公开(公告)日：2006-11-30

申请号：US11498016

申请日：2006-08-03

申请人： Shigenori Sakikawa ,  Manabu Kawakami

发明人： Shigenori Sakikawa ,  Manabu Kawakami

IPC分类号： F04B49/06 ,  F04B1/26 ,  F04B27/08

CPC分类号： F16H61/40 ,  F04B1/2021 ,  F04B1/2042 ,  F04B1/2064 ,  F04B23/106 ,  F16H39/14 ,  F16H61/4043 ,  F16H61/4139 ,  F16H61/4165

摘要： There is provided an axial piston device with which a pair of first oil passages and a drain oil passage for allowing at least one of the first oil passages to communicate with an oil sump. The axial piston device includes a rotary valve rotated around its axis so as to take a shutoff position/a communication position at which the drain oil passage is respectively shut off and communicated. The rotary valve includes a main body, a small-diameter portion that is contracted with a step from the main body, a flange portion that is enlarged from the small-diameter portion with a step, and a communication groove formed on the outer peripheral surface of the main body. The communication groove is formed at the position in the circumferential direction so as to be fluidly shutoff with respect to an upstream-side drain oil passage of the drain oil passage when the rotary valve is positioned at the shutoff position, and fluidly connected to the upstream-side drain oil passage when the rotary valve is positioned at the communication position.

摘要翻译： 提供了一种轴向活塞装置，通过该轴向活塞装置，一对第一油通道和排出油通道用于允许至少一个第一油通道与油底壳连通。 轴向活塞装置包括围绕其轴线旋转的旋转阀，以便取消排泄油通道分别切断和连通的关闭位置/连通位置。 旋转阀包括主体，从主体以台阶收缩的小直径部分，具有从台阶的小直径部分扩大的凸缘部分和形成在外周面上的连通槽 的主体。 连通槽形成在圆周方向上的位置，以便当旋转阀位于关闭位置时相对于排放油通道的上游侧排放油通道流体关闭，并且流体地连接到上游 当旋转阀位于连通位置时，排出油通道。

公开(公告)号：US07140457B2

公开(公告)日：2006-11-28

申请号：US10894190

申请日：2004-07-19

申请人： Yoshitaka Ishimaru ,  Shusuke Nemoto ,  Shigenori Sakikawa ,  Kenichi Takada

发明人： Yoshitaka Ishimaru ,  Shusuke Nemoto ,  Shigenori Sakikawa ,  Kenichi Takada

IPC分类号： B60K25/06 ,  B60K17/28

CPC分类号： B60K25/06 ,  A01D69/002 ,  B60K17/04 ,  B60K17/105 ,  B60K17/16 ,  B60K17/22 ,  B60K17/28 ,  B60Y2200/223 ,  B60Y2200/41 ,  F16H39/14 ,  F16H57/0493 ,  Y10T74/19149

摘要： A transmission mechanism and a pressure oil supply system therefor are provided for use in work vehicles provided with a work device externally of the body of the vehicle at longitudinal one side thereof, the transmission mechanism being simple in construction and serving to shorten the overall length of the vehicle while holding a transmission shaft interconnecting a PTO shaft and an input shaft for the work device close to a horizontal.A work vehicle provided with a work device in front of the vehicle body comprises a transmission 30 disposed between a differential gear unit 10 and an HST 20 and providing a travel cooperative mechanism, a PTO shaft projecting from the housing of the HST 20, and a PTO cooperative mechanism disposed in the housing for dividedly deriving power for the PTO shaft from the travel cooperative mechanism for the transmission of the power. The HST 20 comprises a hydraulic pump 22 having a pump shaft 22a for receiving an input at its rear end, and a hydraulic motor 23 having a motor shaft 23a for delivering a front wheel driving force and a rear wheel driving force from the front end and rear end thereof, respectively.

摘要翻译： 传动机构及其压力供油系统用于工作车辆的纵向一侧设置在车体的外部的工作装置，该传动机构的结构简单且用于缩短车辆的总长度 同时保持将PTO轴和用于工作装置的输入轴互连在水平方向上的传动轴。 在车身前方设置有作业装置的作业车辆包括设置在差速齿轮单元10和HST 20之间的变速器30，并且提供行驶协作机构，从HST20的壳体突出的PTO轴，以及 PTO协作机构设置在壳体中，用于从用于传输动力的行进协作机构分离地导出用于PTO轴的动力。 HST20包括具有用于在其后端接收输入的泵轴22a的液压泵22和具有用于从前方传递前轮驱动力和后轮驱动力的马达轴23a的液压马达23a 其端部和后端分别。

公开(公告)号：US20060196709A1

公开(公告)日：2006-09-07

申请号：US11385481

申请日：2006-03-20

申请人： Yoshitaka Ishimaru ,  Shusuke Nemoto ,  Shigenori Sakikawa ,  Kenichi Takada

发明人： Yoshitaka Ishimaru ,  Shusuke Nemoto ,  Shigenori Sakikawa ,  Kenichi Takada

IPC分类号： B60K25/00 ,  B60K17/00

CPC分类号： B60K25/06 ,  A01D69/002 ,  B60K17/04 ,  B60K17/105 ,  B60K17/16 ,  B60K17/22 ,  B60K17/28 ,  B60Y2200/223 ,  B60Y2200/41 ,  F16H39/14 ,  F16H57/0493 ,  Y10T74/19149

摘要： A transmission mechanism and a pressure oil supply system therefor are provided for use in work vehicles provided with a work device externally of the body of the vehicle at longitudinal one side thereof, the transmission mechanism being simple in construction and serving to shorten the overall length of the vehicle while holding a transmission shaft interconnecting a PTO shaft and an input shaft for the work device close to a horizontal. A work vehicle provided with a work device in front of the vehicle body comprises a transmission 30 disposed between a differential gear unit 10 and an HST 20 and providing a travel cooperative mechanism, a PTO shaft projecting from the housing of the HST 20, and a PTO cooperative mechanism disposed in the housing for dividedly deriving power for the PTO shaft from the travel cooperative mechanism for the transmission of the power. The HST 20 comprises a hydraulic pump 22 having a pump shaft 22a for receiving an input at its rear end, and a hydraulic motor 23 having a motor shaft 23a for delivering a front wheel driving force and a rear wheel driving force from the front end and rear end thereof, respectively.

摘要翻译： 传动机构及其压力供油系统用于工作车辆的纵向一侧设置在车体的外部的工作装置，该传动机构的结构简单且用于缩短车辆的总长度 同时保持将PTO轴和用于工作装置的输入轴互连在水平方向上的传动轴。 在车身前方设置有作业装置的作业车辆包括设置在差速齿轮单元10和HST 20之间的变速器30，并且提供行驶协作机构，从HST20的壳体突出的PTO轴，以及 PTO协作机构设置在壳体中，用于从用于传输动力的行进协作机构分离地导出用于PTO轴的动力。 HST20包括具有用于在其后端接收输入的泵轴22a的液压泵22和具有用于从前方传递前轮驱动力和后轮驱动力的马达轴23a的液压马达23a 其端部和后端分别。