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    Lawn tractor having a blower unit and a grass clippings transport duct
    2.
    发明授权
    Lawn tractor having a blower unit and a grass clippings transport duct 失效
    草坪拖拉机有吹风机单元和草屑运输管道

    公开(公告)号：US5560188A

    公开(公告)日：1996-10-01

    申请号：US410528

    申请日：1995-03-27

    申请人： Masatake Murakawa ,  Eriya Harada ,  Katsuhiko Uemura ,  Kazuaki Kurohara

    发明人： Masatake Murakawa ,  Eriya Harada ,  Katsuhiko Uemura ,  Kazuaki Kurohara

    IPC分类号： A01D34/63 ,  A01D43/077 ,  A01D34/70

    CPC分类号： A01D43/077 ,  A01D2101/00 ,  A01D34/63

    摘要： A lawn tractor has an engine with a vertical output shaft, front wheels and rear wheels, a body frame extending longitudinally of the tractor, a mower unit supported by the body frame, a grass catcher supported the by body frame, a blower unit supported by the body frame, and a duct for transporting grass clippings cut by the mower unit into the grass catcher. The duct includes a first duct portion extending between the mower unit and the blower unit, and a second duct portion extending between the blower unit and the grass catcher. The mower unit has a vertical mower drive shaft for receiving engine power. The blower unit has a vertical blower input shaft for receiving engine power. An intermediate shaft is disposed between the mower unit and blower unit. The intermediate shaft has a first, a second and a third pulleys mounted thereon. The first pulley is drivably connected to the engine output shaft. The second pulley is drivably connected to the mower drive shaft. The third pulley is drivably connected to the blower input shaft.

    摘要翻译： 草坪拖拉机具有发动机，其具有垂直输出轴，前轮和后轮，沿拖拉机纵向延伸的主体框架，由主体框架支撑的割草机单元，由主体框架支撑的割草机，由主体框架支撑的鼓风机单元， 身体框架和用于将由割草机单元切割的草屑运送到捕草器的管道。 所述管道包括在所述割草机单元和所述鼓风机单元之间延伸的第一管道部分和在所述鼓风机单元和所述捕草器之间延伸的第二管道部分。 割草机单元具有用于接收发动机功率的垂直割草机驱动轴。 鼓风机单元具有用于接收发动机功率的垂直鼓风机输入轴。 中间轴设置在割草机单元和鼓风机单元之间。 中间轴具有安装在其上的第一，第二和第三滑轮。 第一滑轮可驱动地连接到发动机输出轴。 第二滑轮可驱动地连接到割草机驱动轴。 第三滑轮可驱动地连接到鼓风机输入轴。

    Engine speed control apparatus for a working vehicle
    4.
    发明授权
    Engine speed control apparatus for a working vehicle 失效
    用于工作车辆的发动机速度控制装置

    公开(公告)号：US5335487A

    公开(公告)日：1994-08-09

    申请号：US26368

    申请日：1993-03-04

    申请人： Masatake Murakawa ,  Akira Minoura ,  Kazuaki Kurohara ,  Ryozo Imanishi ,  Nobuyuki Yamashita ,  Eriya Harada

    发明人： Masatake Murakawa ,  Akira Minoura ,  Kazuaki Kurohara ,  Ryozo Imanishi ,  Nobuyuki Yamashita ,  Eriya Harada

    IPC分类号： A01D34/68 ,  B60K26/04 ,  B60W30/18 ,  A01D34/00

    CPC分类号： B60W30/18 ,  B60K26/04 ,  B60W10/04 ,  B60W10/103

    摘要： A rotating rate control apparatus for adjusting rotation of an engine of a working vehicle between a minimum rate and a maximum rate. The control apparatus has a first, a second and a third rotating rate adjusting devices. The first rotating rate adjusting device adjusts a basic rotating rate of the engine between the minimum rate and maximum rate. The second rotating rate adjusting device is shiftable between an ON position and an OFF position. The second rotating rate adjusting device is operable, when in the ON position, to set the engine to a predetermined rotating rate between the minimum rate and the maximum rate inclusive. The third rotating rate adjusting device is operable, when the second rotating rate adjusting device is in the OFF position, to adjust the rotating rate of the engine between the basic rotating rate adjusted by the first rotating rate adjusting device and the maximum rate.

    摘要翻译： 一种用于在最小速率和最大速率之间调整作业车辆的发动机的旋转的转速控制装置。 控制装置具有第一，第二和第三转速调节装置。 第一旋转速率调节装置调整发动机的最小速率和最大速率之间的基本转速。 第二转速调节装置可在ON位置和OFF位置之间移动。 当处于接通位置时，第二转速调节装置可将发动机设定在包括最小速率和最大速率之间的预定转速。 当第二转速调节装置处于关闭位置时，第三转速调节装置可以调节发动机在由第一转速调节装置调节的基本转速与最大转速之间的转速。

    Apparatus for raising and lowering a mower unit
    5.
    发明授权
    Apparatus for raising and lowering a mower unit 失效
    用于升降割草机单元的装置

    公开(公告)号：US6122903A

    公开(公告)日：2000-09-26

    申请号：US957799

    申请日：1997-10-24

    申请人： Masaki Hayashi ,  Masatake Murakawa ,  Kazuaki Kurohara ,  Nobuyuki Yamashita ,  Mikio Yuki ,  Eriya Harada

    发明人： Masaki Hayashi ,  Masatake Murakawa ,  Kazuaki Kurohara ,  Nobuyuki Yamashita ,  Mikio Yuki ,  Eriya Harada

    IPC分类号： A01D34/64 ,  A01D34/74

    CPC分类号： A01D34/74 ,  A01D2101/00 ,  Y10S56/22

    摘要： An apparatus for raising and lowering a mower unit, having a control lever movable between a first terminal position and a second terminal position for raising and lowering the mower unit, a link mechanism for raising the mower unit with movement from the first terminal position to the second terminal position of the control lever, a first stopper for holding the control lever in the first terminal position, a second stopper for holding the control lever in the second terminal position, and an assist mechanism for applying a force to the link mechanism to raise the mower unit only when the control lever is located between the first terminal position and the second terminal position.

    摘要翻译： 一种用于升降割草机单元的装置，具有可在第一端子位置和第二端子位置之间移动的用于升降割草机单元的控制杆，用于使割草机单元从第一端子位置移动到 控制杆的第二端子位置，用于将控制杆保持在第一端子位置的第一止动件，用于将控制杆保持在第二端子位置的第二止动件和用于向连杆机构施加力的辅助机构，以提升 割草机单元仅在控制杆位于第一端子位置和第二端子位置之间时才进行。

    Engine hood construction of work vehicle
    6.
    发明授权
    Engine hood construction of work vehicle 失效
    发动机罩构造工作车

    公开(公告)号：US5718303A

    公开(公告)日：1998-02-17

    申请号：US557944

    申请日：1995-11-14

    申请人： Hiroyuki Ogasawara ,  Mikio Yuki ,  Akira Minoura ,  Kazuaki Kurohara ,  Masaki Hayashi ,  Katsuhiko Uemura ,  Eriya Harada

    发明人： Hiroyuki Ogasawara ,  Mikio Yuki ,  Akira Minoura ,  Kazuaki Kurohara ,  Masaki Hayashi ,  Katsuhiko Uemura ,  Eriya Harada

    IPC分类号： B62D25/10

    CPC分类号： B62D25/10

    摘要： An engine hood construction for a work vehicle is disclosed. The engine hood is vertically separatable into a lower hood section and an upper hood section. The lower hood section is fixedly attachable to and detachable from a vehicle frame, and the upper hood section is attached to the vehicle frame to be pivotably and vertically opened and closed relative to the frame. A control panel is provided at a rear portion of the engine hood and forming a rear wall of an engine room. The control panel has a forwardly opened hook shape in a plan view. The construction further includes a connecting arrangement for fixedly connecting the lower hood section to the vehicle frame and engaging members for enabling the lower hood section to be engaged with the control panel along a fore-and-aft direction of the vehicle when the connecting arrangement is not connected.

    摘要翻译： 公开了一种用于工作车辆的发动机罩结构。 发动机罩可垂直分离成下罩部和上罩部。 下罩部可固定地附接到车架上并且可从车架拆卸，并且上罩部被安装到车架上以相对于车架枢转和垂直地打开和关闭。 控制面板设置在发动机罩的后部并形成发动机室的后壁。 控制面板在俯视图中具有向前打开的钩形状。 该结构还包括用于将下罩部与车架固定连接的连接装置，以及当连接装置是在车辆前后方向上时，能够使下罩部与车身前后方向接合的接合部件 未连接。

    Engine speed control system for a working vehicle
    7.
    发明授权
    Engine speed control system for a working vehicle 失效
    用于工作车辆的发动机转速控制系统

    公开(公告)号：US5215056A

    公开(公告)日：1993-06-01

    申请号：US877539

    申请日：1992-05-01

    申请人： Eriya Harada ,  Mikio Yuki ,  Masatsugu Tone ,  Masatake Murakawa ,  Ryozo Imanishi

    发明人： Eriya Harada ,  Mikio Yuki ,  Masatsugu Tone ,  Masatake Murakawa ,  Ryozo Imanishi

    IPC分类号： B60W10/04 ,  B60K17/28 ,  B60K23/00 ,  B60W10/08 ,  B60W10/10 ,  B60W10/103

    CPC分类号： B60K23/00 ,  B60K17/28 ,  Y10T477/677

    摘要： An engine speed control system for a working vehicle having an engine, and a propelling transmission and a power takeoff device driven by the engine. Engine speed is adjustable by an accelerator controlled by control signals outputted from a control unit. The control unit is connected to a clutch operation detecting switch for detecting an operative state of a power takeoff clutch for operating a power takeoff device and to a shift condition detecting switch for detecting a shift of the propelling transmission. The control unit outputs a control signal for rotating the engine at an idling speed when the propelling transmission is in neutral and the power takeoff clutch is disengaged, and a control signal for rotating the engine at a high rotating rate when the propelling transmission is in a drive transmitting position or the power takeoff clutch is engaged.

    摘要翻译： 一种用于具有发动机的作业车辆的发动机速度控制系统，以及由发动机驱动的推进变速器和动力输出装置。 发动机转速通过由控制单元输出的控制信号控制的加速器来调节。 控制单元连接到用于检测用于操作动力输出装置的动力输出离合器的操作状态的离合器操作检测开关以及用于检测推进传动的换档的换档状态检测开关。 所述控制单元输出用于当所述推进变速器处于空档并且所述动力输出离合器分离时以怠速转速的所述发动机的控制信号，以及用于当所述推进变速器处于空档状态时使所述发动机以高转速旋转的控制信号 驱动传动位置或动力输出离合器接合。

    Interlock circuit for a working vehicle
    9.
    发明授权
    Interlock circuit for a working vehicle 有权
    工作车辆联锁电路

    公开(公告)号：US06720679B2

    公开(公告)日：2004-04-13

    申请号：US09789485

    申请日：2001-02-20

    申请人： Eriya Harada ,  Nobuyuki Yamashita ,  Shinichiro Saji ,  Yoshio Tomiyama ,  Takashi Shibata

    发明人： Eriya Harada ,  Nobuyuki Yamashita ,  Shinichiro Saji ,  Yoshio Tomiyama ,  Takashi Shibata

    IPC分类号： H02H300

    CPC分类号： A01B71/06 ,  B60K25/00 ,  B60K28/10 ,  B60W30/18036 ,  B60W2510/0208 ,  B60Y2200/223

    摘要： An interlock circuit for a working vehicle having a vehicle body, a working implement attached to the vehicle body, a clutch mechanism for connecting and disconnecting power to the working implement, and a shifting device for determining a traveling direction of the vehicle body. The interlock circuit has a check function to check a backward operational run in which the vehicle body travels backward with the clutch mechanism engaged, and a release function to permit a backward operational run by canceling the check function. The check function checks the backward operational run based on a signal indicating an on/off state of the clutch mechanism and a signal indicating a traveling direction of the vehicle body determined by the shifting device. The release function maintains the check function off continuously by operating a release switch when the clutch mechanism is engaged, and the signal indicating a traveling direction of the vehicle body indicates forward or neutral.

    摘要翻译： 一种用于具有车体的作业车辆的联锁电路，安装在车体上的作业工具，用于连接和断开对工作工具的动力的离合器机构，以及用于确定车身行驶方向的换档装置。 互锁电路具有检查功能，用于检查车体在离合器机构接合时向后行进的后退操作行程，以及通过取消检查功能来允许后退操作行驶的释放功能。 检查功能基于指示离合器机构的开/关状态的信号和指示由换档装置确定的车身行驶方向的信号来检查向后运行。 当离合器机构接合时，释放功能通过操作释放开关来保持检查功能，并且指示车身行进方向的信号指示向前或中立。

    Control apparatus and proportional solenoid valve control circuit for boom-equipped working implement
    10.
    发明授权
    Control apparatus and proportional solenoid valve control circuit for boom-equipped working implement 失效
    控制装置和比例电磁阀控制电路，用于装有吊臂的工作装置

    公开(公告)号：US4773302A

    公开(公告)日：1988-09-27

    申请号：US13954

    申请日：1987-02-12

    申请人： Hideaki Mizota ,  Eriya Harada

    发明人： Hideaki Mizota ,  Eriya Harada

    IPC分类号： E02F3/43 ,  E02F9/20 ,  F15B13/16

    CPC分类号： E02F9/20 ,  E02F3/434 ,  E02F9/2004 ,  E02F9/2041

    摘要： A control apparatus having a boom control system for controlling the movement of a liftable boom supported by a vehicle body and a working device control system for controlling a working device pivoted to the boom. Each of the control system includes a proportional solenoid valve and comprises an instruction circuit for producing an instruction signal in accordance with the amount of manipulation of an operating lever, discriminating circuit for determining the direction of operation of the valve from the instruction signal, a reference signal generator, a comparison circuit for comparing the instruction signal with the reference signal from the generator to obtain a pulse signal of a width in proportion to the amount of manipulation, and drive circuit for converting the pulse signal into a current to drive the valve in the direction determined by the discriminating circuit. The boom, as well as the working device, is movable at a speed corresponding to the amount of manipulation of the operating lever.

    摘要翻译： 一种控制装置，具有用于控制由车体支撑的可升降起重臂的运动的起重臂控制系统和用于控制枢转到起重臂的作业装置的作业装置控制系统。 每个控制系统包括一个比例电磁阀，它包括一个指令电路，用于根据操作杆的操纵量产生一个指令信号，用于根据指令信号确定阀的运行方向的鉴别电路， 信号发生器，用于将指令信号与来自发生器的参考信号进行比较的比较电路，以获得与操作量成比例的宽度的脉冲信号;以及用于将脉冲信号转换成电流以驱动阀门的驱动电路 由鉴别电路确定的方向。 起重臂以及作业装置能够以对应于操作杆的操纵量的速度移动。