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    • 1. 发明申请
    • Transmission for speed changing and steering of a vehicle
    • 车辆变速和转向传动
    • US20060196719A1
    • 2006-09-07
    • US11418068
    • 2006-05-05
    • Toshiyuki HasegawaTravis McCloudKeith AndrewsRobert Abend
    • Toshiyuki HasegawaTravis McCloudKeith AndrewsRobert Abend
    • B60K17/00
    • B60K17/105B60Y2200/223B62D11/006B62D11/18B62D11/183F16H47/04F16H2047/045
    • A transmission for speed changing and steering of a vehicle comprises a first HST and a first differential for speed changing and a second HST and a second differential for steering. The first HST is a combination of a hydraulic pump and motor. The pump is driven by an engine and the motor is drivingly changeable by operation of a speed change pedal. Output power from the motor is transmitted into a pair of first differential output shafts as axles through the first differential. The second HST is a combination of a hydraulic pump and motor. The second pump is driven by output power from the first HST and the second motor is drivingly changeable by operation of a steering wheel. A pair of second differential output shafts are rotated in opposite directions by output power of the motor, so that when turning, the first differential output shaft on the opposite side of the turning direction is accelerated.
    • 用于车辆的变速和转向的变速器包括第一HST和用于变速的第一差速器,以及用于转向的第二HST和第二差速器。 第一个HST是液压泵和电机的组合。 泵由发动机驱动,并且电动机通过变速踏板的操作而变化。 来自马达的输出功率通过第一差速器传递到作为轴的一对第一差动输出轴。 第二台HST是液压泵和电机的组合。 第二泵由来自第一HST的输出功率驱动,并且第二电动机可通过方向盘的操作而变化。 一对第二差速器输出轴通过马达的输出功率在相反方向旋转,从而当转动时,加速了与转动方向相反一侧的第一差动输出轴。
    • 2. 发明申请
    • Riding lawn mower
    • 骑马割草机
    • US20050003919A1
    • 2005-01-06
    • US10852265
    • 2004-05-25
    • Toshiyuki HasegawaTravis McCloudKeith AndrewsRobert Abend
    • Toshiyuki HasegawaTravis McCloudKeith AndrewsRobert Abend
    • B62D11/18F16H47/04B62D11/06
    • B60K17/105B60Y2200/223B62D11/006B62D11/18B62D11/183F16H47/04F16H2047/045
    • A transmission for speed changing and steering of a vehicle comprises a first HST and a first differential for speed changing and a second HST and a second differential for steering. The first HST is a combination of a hydraulic pump and motor. The pump is driven by an engine and the motor is drivingly changeable by operation of a speed change pedal. Output power from the motor is transmitted into a pair of first differential output shafts as axles through the first differential. The second HST is a combination of a hydraulic pump and motor. The second pump is driven by output power from the first HST and the second motor is drivingly changeable by operation of a steering wheel. A pair of second differential output shafts are rotated in opposite directions by output power of the motor, so that when turning, the first differential output shaft on the opposite side of the turning direction is accelerated.
    • 用于车辆的变速和转向的变速器包括第一HST和用于变速的第一差速器,以及用于转向的第二HST和第二差速器。 第一个HST是液压泵和电机的组合。 泵由发动机驱动,并且电动机通过变速踏板的操作而变化。 来自马达的输出功率通过第一差速器传递到作为轴的一对第一差动输出轴。 第二台HST是液压泵和电机的组合。 第二泵由来自第一HST的输出功率驱动,并且第二电动机可通过方向盘的操作而变化。 一对第二差速器输出轴通过马达的输出功率在相反方向旋转,从而当转动时,加速了与转动方向相反一侧的第一差动输出轴。
    • 3. 发明申请
    • Vehicle improved in steering
    • 车辆转向改善
    • US20050257983A1
    • 2005-11-24
    • US11189993
    • 2005-07-27
    • Koji IrikuraNorihiro IshiiRyota OhashiKenichi TakadaHirohiko KawadaRobert AbendKeith AndrewsToshiyuki HasegawaHiroaki Shimizu
    • Koji IrikuraNorihiro IshiiRyota OhashiKenichi TakadaHirohiko KawadaRobert AbendKeith AndrewsToshiyuki HasegawaHiroaki Shimizu
    • A01D69/03B60K17/00B60K17/10B62D11/00B62D11/04B62D11/18B62D11/24F16H39/14
    • A01D69/03B60K17/105B62D11/006B62D11/04B62D11/18B62D11/24F16H39/14
    • A vehicle is installed with an integral transaxle apparatus constructed so that a single housing contains left and right axles, a driving hydrostatic transmission (HST) having a variable displacement first hydraulic pump and a first hydraulic motor fluidly connected with each other, a steering HST having a variable displacement second hydraulic pump and a variable displacement second hydraulic motor fluidly connected with each other, and a differential unit differentially connecting the axles with each other so as to be driven regularly or reversely by the output of the driving HST and to differentially drive the axles while receiving the output of the steering HST, wherein the first hydraulic pump receives power of a prime mover and has a first movable swash plate, and the second hydraulic pump receives power of the prime mover independently of the first hydraulic pump and has a second movable swash plate. The vehicle is also provided with driving operating means for slanting operation of the first movable swash plate for switching the travelling direction between forward and backward and for changing the travelling speed, and steering operating means for slanting operation of the second movable swash plate so as to determine the leftward and rightward cornering angle. The second hydraulic motor has a third movable swash plate interlocking with the driving operating means so that the slanting direction of the third movable swash plate is changed oppositely with respect to its neutral position according to the travelling direction switching operation of the driving operating means, whereby the vehicle turns laterally in the same direction of leftward and rightward steering operation of the steering operating means whether the vehicle travels forward or backward.
    • 车辆安装有整体的驱动桥装置,其构造成使得单个壳体包含左轴和右轴,具有可变排量第一液压泵的驱动静液压变速器(HST)和彼此流体连接的第一液压马达,转向HST具有 相互流体连接的可变排量第二液压泵和可变排量第二液压马达,以及差动单元,其将轴彼此差分地连接,以便通过驱动HST的输出有规则地或相反地驱动,并差动驱动 同时接收转向HST的输出,其中第一液压泵接收原动机的动力并具有第一可动斜盘,并且第二液压泵独立于第一液压泵接收原动机的动力,并且具有第二 活动斜盘 车辆还设置有用于使第一可动斜盘倾斜操作的驱动操作装置,用于切换前后的行进方向和用于改变行驶速度;以及用于使第二可动斜盘的倾斜操作的转向操作装置,以便 确定左右拐角。 第二液压马达具有与驱动操作装置互锁的第三可动斜盘,使得根据驱动操作装置的行进方向切换操作,第三可动斜盘的倾斜方向相对于其中立位置相反地改变,由此 在车辆向前或向后行驶时,车辆在与转向操作装置的向左和向右转向操作相同的方向上横向转动。
    • 9. 发明授权
    • Cruise control and neutral return mechanism for a hydrostatic transmission
    • 液压传动的巡航控制和中立返回机构
    • US07240488B2
    • 2007-07-10
    • US11048111
    • 2005-02-02
    • Masaru IidaKeith AndrewsDonald Wieber
    • Masaru IidaKeith AndrewsDonald Wieber
    • F16B31/02
    • B60K31/06B60Y2200/22B60Y2200/223F16H61/42F16H61/437
    • A control arm is coupled to a control shaft of a hydraulic pump. A friction shaft extends parallel to the control shaft and is slidably moveable within an arcuate-shaped hole in the control arm. A stop plate is movably supported by the control shaft and the friction shaft. When the stop plate is in the operating position, a friction pad supported by the friction shaft is biased by a pressure plate and a spring against the control arm. When the stop plate is in the braking position, a sloping region of the stop plate engages a pin extending from the pressure plate such that the friction pad is spaced from the control arm and arcuate-shaped grooves in the stop plate engage pins extending from the control arm in a neutral position. The present invention also includes a hydrostatic transmission and a vehicle incorporating the cruise control and neutral return mechanism.
    • 控制臂联接到液压泵的控制轴。 摩擦轴平行于控制轴延伸并且在控制臂中的弧形孔内可滑动地移动。 止动板由控制轴和摩擦轴可移动地支撑。 当止动板处于操作位置时,由摩擦轴支撑的摩擦垫被压板和弹簧抵靠在控制臂上而被偏压。 当止动板处于制动位置时,止动板的倾斜区域接合从压板延伸的销,使得摩擦垫与控制臂间隔开,并且止动板中的弧形槽接合从 控制臂处于中立位置。 本发明还包括静液压传动装置和结合巡航控制和中立返回机构的车辆。