公开(公告)号：US09334934B2

公开(公告)日：2016-05-10

申请号：US13884137

申请日：2011-07-08

申请人： Fumitoshi Ishino ,  Takeshi Ouchida ,  Terunobu Yoshioka ,  Koji Iwaki

发明人： Fumitoshi Ishino ,  Takeshi Ouchida ,  Terunobu Yoshioka ,  Koji Iwaki

IPC分类号： F16H9/16 ,  F16H61/02 ,  F16H37/02 ,  F16H61/662 ,  F16H63/06 ,  F16H9/18

CPC分类号： F16H9/16 ,  F16H9/18 ,  F16H37/022 ,  F16H61/0265 ,  F16H61/66263 ,  F16H63/065

摘要： An input pulley, an output pulley, a belt wound across the pulleys, a hydraulic cylinder provided to the input pulley, and a hydraulic servo mechanism that controls an operation of the hydraulic cylinder are provided. The hydraulic servo mechanism includes: a valve chest facing an input side movable sheave; a servo spool slidably inserted in the valve chest, and switches an oil passage in communication with a hydraulic chamber of the hydraulic cylinder; and a feedback spool disposed in such a manner that one end comes into contact with the input side movable sheave a bearing disposed in between, and configured to switch the oil passage to maintain a slid position of the input side movable sheave at a position corresponding to a slid position of the servo spool.

摘要翻译： 提供了输入滑轮，输出滑轮，缠绕在滑轮上的皮带，设置在输入滑轮上的液压缸，以及控制液压缸操作的液压伺服机构。 液压伺服机构包括：面向输入侧可动滑轮的阀门; 一个可滑动地插入阀门的伺服阀，并且与液压缸的液压室连通的油路开关; 以及反馈卷轴，其设置成使得一端与输入侧可动滑轮接触设置在其间的轴承，并且构造成切换油通道以将输入侧可动滑轮的滑动位置保持在对应于 伺服阀芯的滑动位置。

公开(公告)号：US08806864B2

公开(公告)日：2014-08-19

申请号：US12914474

申请日：2010-10-28

申请人： Norihiro Ishii ,  Koji Iwaki

发明人： Norihiro Ishii ,  Koji Iwaki

IPC分类号： F16D39/00 ,  F16H47/04 ,  F16H47/02 ,  F16H37/08

CPC分类号： F16H47/04 ,  F16H47/02 ,  F16H2037/0886

摘要： A transmission comprises a casing, an output element, a hydrostatic stepless transmission unit (HST) and a forward/backward traveling direction selecting unit (reverser). The output element is supported by the casing. The HST is disposed in the casing so as to be driven by a drive source disposed outside of the casing. The HST includes a pump shaft and a motor shaft member. The pump shaft is drivingly connected to the drive source. The motor shaft member is fitted around the pump shaft coaxially to the pump shaft so as to be rotatable relative to the pump shaft, thereby constituting a hydraulic pump and a hydraulic motor centered on the pump shaft and the motor shaft member. An axially distal end of the motor shaft member is disposed on the axially proximal side of an axially distal end of the pump shaft so that axial ends of the pump shaft are the axially most distal ends of the HST in the axial direction of the pump shaft. The reverser is disposed in the casing so as to transmit power outputted from the HST to the output element. The reverser includes a forward-traveling drive train, a backward-traveling drive train, and a clutch for selecting either the forward-traveling drive train or the backward traveling drive train to transmit the power outputted from the motor shaft member to the output element. The reverser and the output element are entirely disposed between the axial ends of the pump shaft in the axial direction of the pump shaft.

摘要翻译： 变速器包括壳体，输出元件，静液压无级变速器单元（HST）和前进/后退行驶方向选择单元（反向器）。 输出元件由外壳支撑。 HST设置在壳体中，以便由设置在壳体外部的驱动源驱动。 HST包括泵轴和电机轴构件。 泵轴驱动地连接到驱动源。 马达轴构件与泵轴同轴地安装在泵轴上，以能够相对于泵轴旋转，从而构成以泵轴和马达轴构件为中心的液压泵和液压马达。 电动机轴构件的轴向远端设置在泵轴的轴向远端的轴向近侧上，使得泵轴的轴向端部在泵轴的轴向方向上是HST的轴向最远端 。 反转器设置在壳体中，以将从HST输出的功率传送到输出元件。 逆变器包括前进行驶传动系，后退行驶传动系和用于选择前进行驶传动系或后退行驶传动系的离合器，将从电动机轴部件输出的动力传递给输出部件。 反向器和输出元件在泵轴的轴向方向上完全设置在泵轴的轴向端之间。

公开(公告)号：US08459398B2

公开(公告)日：2013-06-11

申请号：US13537552

申请日：2012-06-29

申请人： Koji Iwaki

发明人： Koji Iwaki

IPC分类号： B60K7/00

CPC分类号： B60K17/043 ,  B60K7/0015 ,  B60K17/105 ,  B60K17/16 ,  B60K2007/0046 ,  B60K2007/0061 ,  B60L2220/46 ,  B60Y2200/223

摘要： A wheel motor device applicable to a working vehicle including a driving power source, a hydraulic pump main body operatively driven by the driving source and a driving wheel, the wheel motor device comprising a hydraulic motor main body forming an HST in cooperation with the hydraulic pump main body, a motor shaft supporting the hydraulic motor main body in a relatively non-rotatable manner with respect thereto, an output member outputting toward the driving wheel the rotational power that has been operatively transmitted from the motor shaft, and a casing accommodating the hydraulic motor main body and supporting the motor shaft and the output member.

摘要翻译： 一种适用于包括驱动动力源的工作车辆的轮式电动机装置，由驱动源可操作地驱动的液压泵主体和驱动轮，所述车轮电动机装置包括与所述液压泵配合的形成HST的液压马达主体 主体，以相对不可旋转的方式支撑液压马达主体的马达轴，向驱动轮输出已经从马达轴可操作地传递的旋转动力的输出构件和容纳液压的壳体 电机主体，并支撑电机轴和输出部件。

公开(公告)号：US20130091837A1

公开(公告)日：2013-04-18

申请号：US13272917

申请日：2011-10-13

申请人： Tsuyoshi KITA ,  Koji Iwaki

发明人： Tsuyoshi KITA ,  Koji Iwaki

IPC分类号： F15B13/00

CPC分类号： F15B7/006 ,  B60Y2200/223 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/613 ,  F15B2211/7058 ,  F16H61/4139

摘要： A hydraulic transmission system for a zero-turn vehicle, comprises first and second transaxles each of which includes an axle, a casing supporting the axle, a fluid sump provided in the casing, first and second ports provided on the casing and opened outward from the casing, an HST circuit, a charge pump disposed in the casing, and a charge passage disposed in the casing to supply the HST circuit with fluid delivered from the charge pump. A first pipe connects the first ports of the transaxles, thereby making the flow of fluid from the charge pump of the first transaxle to the fluid sump of the second transaxle. A second pipe connects the second ports of the transaxles, whereby overflowing fluid of the fluid sump of the second transaxle is released to the fluid sump of the first transaxle via the second pipe.

摘要翻译： 一种用于零转弯车辆的液压传动系统，包括第一和第二变速驱动桥，每个驱动桥包括轴，支撑轴的壳体，设置在壳体中的流体槽，设置在壳体上的第一和第二端口， 壳体，HST电路，设置在壳体中的电荷泵，以及设置在壳体中的充电通道，以向HST电路提供从电荷泵输送的流体。 第一管连接驱动桥的第一端口，从而使流体从第一驱动桥的电荷泵流到第二驱动桥的流体槽。 第二管连接变速驱动桥的第二端口，由此第二变速驱动桥的流体槽的溢流流体经由第二管被释放到第一变速驱动桥的流体集油槽。

公开(公告)号：US20120261201A1

公开(公告)日：2012-10-18

申请号：US13537552

申请日：2012-06-29

申请人： Koji IWAKI

发明人： Koji IWAKI

IPC分类号： B60K7/00

CPC分类号： B60K17/043 ,  B60K7/0015 ,  B60K17/105 ,  B60K17/16 ,  B60K2007/0046 ,  B60K2007/0061 ,  B60L2220/46 ,  B60Y2200/223

摘要： A wheel motor device applicable to a working vehicle including a driving power source, a hydraulic pump main body operatively driven by the driving source and a driving wheel, the wheel motor device comprising a hydraulic motor main body forming an HST in cooperation with the hydraulic pump main body, a motor shaft supporting the hydraulic motor main body in a relatively non-rotatable manner with respect thereto, an output member outputting toward the driving wheel the rotational power that has been operatively transmitted from the motor shaft, and a casing accommodating the hydraulic motor main body and supporting the motor shaft and the output member.

摘要翻译： 一种适用于包括驱动动力源的工作车辆的轮式电动机装置，由驱动源可操作地驱动的液压泵主体和驱动轮，所述车轮电动机装置包括与所述液压泵配合的形成HST的液压马达主体 主体，以相对不可旋转的方式支撑液压马达主体的马达轴，向驱动轮输出已经从马达轴可操作地传递的旋转动力的输出构件和容纳液压的壳体 电机主体，并支撑电机轴和输出部件。

公开(公告)号：US07980339B2

公开(公告)日：2011-07-19

申请号：US12776661

申请日：2010-05-10

申请人： Norihiro Ishii ,  Koji Iwaki ,  Fumitoshi Ishino

发明人： Norihiro Ishii ,  Koji Iwaki ,  Fumitoshi Ishino

IPC分类号： B60K17/28

CPC分类号： F16D31/02 ,  A01D69/03 ,  B60K17/10 ,  B60K17/356 ,  B60Y2200/223

摘要： A power transmission system of a hydraulically driven working vehicle comprises: a prime mover supported by a vehicle frame, the prime mover including a prime mover output shaft projecting in the fore-and-aft direction of the vehicle; a pump housing; a hydraulic pump disposed in the pump housing, the hydraulic pump including a pump shaft projecting from the pump housing in the fore-and-aft direction of the vehicle so as to be drivingly connected to the prime mover output shaft; a first hydraulic motor disposed outside the pump housing so as to be fluidly connected to the hydraulic pump; a transaxle supported by one of front and rear portions of the vehicle frame, the transaxle including a transaxle housing, a pair of axles disposed in the transaxle housing so as to be driven by the hydraulic motor, and a differential gear unit disposed in the transaxle housing so as to be drivingly interposed between the hydraulic motor and the pair of axles; a PTO shaft; and a working power train extracting a part of power transmitted from the prime mover output shaft to the pump shaft and transmitting the extracted power to the PTO shaft.

摘要翻译： 液压驱动作业车辆的动力传动系统包括：由车架支撑的原动机，原动机包括沿车辆前后方向突出的原动机输出轴; 泵壳; 设置在所述泵壳体内的液压泵，所述液压泵包括从所述泵壳体沿所述车辆的前后方向突出的泵轴，以便驱动地连接到所述原动机输出轴; 第一液压马达，其设置在所述泵壳体的外部，以流体地连接到所述液压泵; 由所述车架的前后部支撑的变速驱动桥，所述变速驱动桥包括变速驱动桥壳体，设置在所述驱动桥壳体中以由所述液压马达驱动的一对轴，以及配置在所述变速驱动桥中的差动齿轮单元 壳体，以便驱动地插入在液压马达和所述一对轴之间; PTO轴; 以及工作动力系提取从原动机输出轴传递到泵轴的动力的一部分，并将提取的动力传递到PTO轴。

公开(公告)号：US20090236169A1

公开(公告)日：2009-09-24

申请号：US12408098

申请日：2009-03-20

申请人： Hiroshi SUGIMOTO ,  Hideki Kanenobu ,  Koji Iwaki ,  Kenta Sashikuma

发明人： Hiroshi SUGIMOTO ,  Hideki Kanenobu ,  Koji Iwaki ,  Kenta Sashikuma

IPC分类号： B60K17/10 ,  F16D39/00 ,  F16D31/02

CPC分类号： B60K17/105 ,  B60Y2200/223

摘要： The working vehicle includes an axle unit that has a differential gear device, an axle case, an axle input shaft and first and second main output shafts, and an HST unit that has a hydraulic pump main body, a hydraulic motor main body, a capacity adjustment mechanism, an HST case, a pump shaft and a motor shaft, an HST input shaft, and an HST output shaft, wherein the axle unit is directly or indirectly supported by the vehicle frame so as to be positioned close to a first main driving wheel in a state where the axle input shaft extends in a vehicle widthwise direction, wherein the HST unit is directly or indirectly supported by the vehicle frame at a position away from the axle unit in a state where the HST output shaft extends in the vehicle widthwise direction, and wherein the HST output shaft and the axle input shaft are operatively connected to each other through an endless type transmission member.

摘要翻译： 工作车辆包括具有差动齿轮装置，轴箱，轴输入轴以及第一和第二主输出轴的轴单元，以及具有液压泵主体，液压马达主体，容量的HST单元 调节机构，HST壳体，泵轴和马达轴，HST输入轴和HST输出轴，其中所述车轴单元由所述车架直接或间接支撑，以便定位成靠近第一主驱动 轮轴在轴输入轴沿车辆宽度方向延伸的状态下，其中HST单元在远离轴单元的位置处直接或间接地支撑在HST输出轴在车辆宽度方向上延伸的状态 方向，并且其中所述HST输出轴和所述轴输入轴通过环形传动构件彼此可操作地连接。

公开(公告)号：US20090049833A1

公开(公告)日：2009-02-26

申请号：US12204458

申请日：2008-09-04

申请人： Shinya SAKAKURA ,  Takeshi Okazaki ,  Koji Iwaki

发明人： Shinya SAKAKURA ,  Takeshi Okazaki ,  Koji Iwaki

IPC分类号： F16H39/00

CPC分类号： B60K17/043 ,  B60K17/105 ,  B60K17/356 ,  B60Y2200/221 ,  B60Y2200/223 ,  B62D7/18 ,  B62D9/002 ,  B62D11/001 ,  F16H39/12 ,  F16H39/14

摘要： A hydraulic transaxle has an axle casing and a pair of hydraulic motors disposed in the axle casing. The hydraulic motors have respective motor shafts and respective moveable swash plates. An axis of tilt of each moveable swash plate is offset with respect to a longitudinal axis of the respective motor shaft, and the moveable swash plates are operatively engaged to a steering operation device.

摘要翻译： 液压驱动桥具有轴套和设置在轴箱中的一对液压马达。 液压马达具有各自的马达轴和相应的可移动斜盘。 每个可移动斜盘的倾斜轴相对于相应马达轴的纵向轴线偏移，并且可移动的斜盘可操作地接合到转向操作装置。

公开(公告)号：US07415823B2

公开(公告)日：2008-08-26

申请号：US11402101

申请日：2006-04-12

申请人： Koji Iwaki ,  Shiro Ueno ,  Norihiro Ishii ,  Hideaki Okada ,  Hiroshi Sugimoto ,  Shinichi Hirose ,  Hironori Sumomozawa ,  Fumitoshi Ishino

发明人： Koji Iwaki ,  Shiro Ueno ,  Norihiro Ishii ,  Hideaki Okada ,  Hiroshi Sugimoto ,  Shinichi Hirose ,  Hironori Sumomozawa ,  Fumitoshi Ishino

IPC分类号： B60K17/10 ,  B60K17/356 ,  F16H37/06

CPC分类号： B60K17/356 ,  B60K17/105 ,  B60Y2200/223

摘要： In a hydraulic four-wheel drive vehicle, a rear transaxle incorporates a hydraulic motor for driving rear wheels, a front transaxle incorporates a hydraulic motor for driving front wheels, and hydraulic pressure fluid pipes interposed between the front and rear transaxles are extended along at least one of left and right side plates of a frame of the vehicle.

摘要翻译： 在液压四轮驱动车辆中，后驱动桥包括用于驱动后轮的液压马达，前驱动桥包括用于驱动前轮的液压马达，并且插入在前驱动桥和后驱动桥之间的液压流体管至少延伸 车辆的框架的左右侧板中的一个。

公开(公告)号：US07036622B2

公开(公告)日：2006-05-02

申请号：US10107370

申请日：2002-03-28

申请人： Koji Iwaki

发明人： Koji Iwaki

IPC分类号： B62D21/00

CPC分类号： B62D49/02

摘要： A tractor frame comprises a pair of left and right cranked side frame elements disposed in parallel. Each of the cranked side frame elements includes a web portion at a longitudinally intermediate portion of the cranked side frame elements, a front level portion extended forward from the web portion, and a rear level portion extended backward from the web portion so that a top of the rear level portion is lower than a top of the front level portion. A footboard is provided on the top of the rear level portion.