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1. 发明授权

US5689953A Cooling system for a liquid-cooled engine 失效
标题翻译：液冷发动机冷却系统
公开(公告)号：US5689953A
公开(公告)日：1997-11-25
申请号：US623561
申请日：1996-03-28
申请人： Nobuyuki Yamashita , Ryozo Imanishi , Masaki Hayashi , Kazuaki Kurohara , Masatake Murakawa , Katsuhiko Uemura , Eriya Harada
发明人： Nobuyuki Yamashita , Ryozo Imanishi , Masaki Hayashi , Kazuaki Kurohara , Masatake Murakawa , Katsuhiko Uemura , Eriya Harada
IPC分类号： B60K11/02 , B60K11/04 , B60K11/08 , B60K13/04 , F01N3/05 , F01P3/18 , F01P5/06 , F01P11/20 , F01P1/00 , F01N3/02 , F01P1/08
CPC分类号： F01P3/18 , B60K11/02 , B60K11/04 , B60K11/08 , F01N3/05 , F01P11/20 , B60K13/04 , F01P2060/16 , F01P5/06 , Y02T10/20
摘要： A cooling system for a vehicle having a radiator disposed above an engine, and a muffler disposed in a region below the engine. This system includes an air intake guide for guiding cooling air to the radiator from outside, an exhaust guide for guiding a large part of the cooling air having flowed past the radiator, forwardly of the vehicle, a cooling fan for producing air currents flowing from the air intake guide past the radiator to the exhaust guide, and ducts provided for opposite sides of the exhaust guide for guiding part of the cooling air having flowed passed the radiator into a muffler cover enclosing the muffler. The ducts communicate with positions of the muffler cover to blow the cooling air toward connections between exhaust pipes of the engine and the muffler.
摘要翻译：一种用于车辆的冷却系统，其具有设置在发动机上方的散热器，以及设置在发动机下方的区域中的消音器。该系统包括用于从外部将冷却空气引导到散热器的进气引导件，用于引导流过散热器的大部分已经流过散热器的冷却空气的排气引导件，用于产生从车辆前方流动的气流的冷却风扇进气引导件通过散热器到排气引导件，以及设置在排气引导件的相对侧的管道，用于引导已经流过散热器的冷却空气的一部分包围消音器的消声器盖。管道与消声器盖的位置通信，以将冷却空气吹向发动机排气管与消声器之间的连接。

2. 发明授权

US5887671A Working vehicle with power steering 失效
标题翻译：带动力转向的工作车辆
公开(公告)号：US5887671A
公开(公告)日：1999-03-30
申请号：US882521
申请日：1997-06-25
申请人： Mikio Yuki , Hiroyuki Ogasawara , Masatake Murakawa , Kazuaki Kurohara , Nobuyuki Yamashita , Masaki Hayashi , Eriya Harada , Masatoshi Yamaguchi , Hiroki Nagai , Yoshio Tomiyama , Katsuhiko Uemura
发明人： Mikio Yuki , Hiroyuki Ogasawara , Masatake Murakawa , Kazuaki Kurohara , Nobuyuki Yamashita , Masaki Hayashi , Eriya Harada , Masatoshi Yamaguchi , Hiroki Nagai , Yoshio Tomiyama , Katsuhiko Uemura
IPC分类号： B60K11/08 , B62D5/04 , B60K11/06
CPC分类号： B62D5/0463 , B60K11/08 , B62D5/04
摘要： A working vehicle with power steering, having a substantially closed accommodating space defined by an engine hood and a control panel, an engine disposed in the accommodating space and a steering shaft disposed in the control panel. A cooling fan produces cooling air flows moving toward the engine from an air intake formed in the control panel. A power steering apparatus for supplying steering assist power to the steering shaft, and a control unit for controlling the power steering apparatus, are arranged in the accommodating space to be exposed to the cooling air flows.
摘要翻译：具有动力转向的工作车辆，具有由发动机罩和控制面板限定的基本封闭的容纳空间，设置在容纳空间中的发动机和设置在控制面板中的转向轴。冷却风扇从形成在控制面板上的进气口产生朝向发动机移动的冷却空气流。用于向转向轴提供转向辅助动力的动力转向装置和用于控制动力转向装置的控制单元布置在容纳空间中以暴露于冷却空气流。

3. 发明授权

US5335487A Engine speed control apparatus for a working vehicle 失效
标题翻译：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。

4. 发明授权

US6122903A Apparatus for raising and lowering a mower unit 失效
标题翻译：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。

5. 发明授权

US5560188A Lawn tractor having a blower unit and a grass clippings transport duct 失效
标题翻译：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。

6. 发明授权

US5215056A Engine speed control system for a working vehicle 失效
标题翻译：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。

7. 发明授权

US5207187A Air cooling system for a vertical engine 失效
标题翻译：垂直发动机的空气冷却系统
公开(公告)号：US5207187A
公开(公告)日：1993-05-04
申请号：US784549
申请日：1991-10-29
申请人： Kazuaki Kurohara , Nobuyuki Yamashita , Masatake Murakawa
发明人： Kazuaki Kurohara , Nobuyuki Yamashita , Masatake Murakawa
IPC分类号： B60K11/06 , F01P1/00 , F01P3/18 , F01P11/12
CPC分类号： F01P3/18 , B60K11/06 , F01P11/12 , F01P2001/005 , Y10S180/90
摘要： An air cooling system for a vertical engine having a cylinder head projecting forwardly of a vehicle. The vehicle also includes a steering box disposed rearwardly of the engine, and a hood extending from the steering box and over the engine. This cooling system includes a cooling fan disposed above the engine; and engine cover enclosing the engine and opening downwardly, the engine cover defining an air suction opening in a region opposed to the cooling fan; an air intake opening defined in the steering box; and a shield for dividing an engine room formed forwardly of the steering box and under the hood into a front chamber for accommodating the cylinder head, and a rear chamber for accommodating the cooling fan. The shield includes a first shield member and second shield members.
摘要翻译：一种用于垂直发动机的空气冷却系统，其具有向车辆前方突出的气缸盖。车辆还包括设置在发动机后方的转向箱，以及从转向箱延伸并在发动机上方的罩。该冷却系统包括设置在发动机上方的冷却风扇; 发动机盖封闭发动机并向下打开，发动机盖在与冷却风扇相对的区域中限定空气吸入口; 在所述转向箱中限定的进气口; 以及用于将形成在所述转向箱前方的发动机室和所述发动机罩下面的罩分隔成用于容纳所述气缸盖的前室，以及用于容纳所述冷却风扇的后室。屏蔽包括第一屏蔽部件和第二屏蔽部件。

8. 发明授权

US5029668A Muffler system 失效
标题翻译：消声器系统
公开(公告)号：US5029668A
公开(公告)日：1991-07-09
申请号：US412926
申请日：1989-09-26
申请人： Masatake Murakawa , Nobuyuki Yamashita , Ryozo Imanishi , Yoji Fujihara
发明人： Masatake Murakawa , Nobuyuki Yamashita , Ryozo Imanishi , Yoji Fujihara
IPC分类号： F01N3/05 , F01N13/08
CPC分类号： F01N13/08 , F01N3/05 , Y02T10/20
摘要： A muffler system for a working vehicle, particularly a lawn mower, comprising a main muffler body connected to an exhaust manifold of the engine, and a curved muffler cover covering the main muffler body from below. An exhaust pipe extends from the main muffler body laterally outwardly of the vehicle body, and defines an exhaust outlet for discharging exhaust gas in a direction away from a front wheel and the ground. Cooling air is blown by a cooling fan from the engine into the muffler cover. The muffler cover defines air exhaust openings for directing the cooling air forwardly of the vehicle body.
摘要翻译：一种用于工作车辆，特别是割草机的消音器系统，包括连接到发动机的排气歧管的主消声器主体和从下方覆盖主消声器主体的弯曲消声器盖。排气管从主消音器主体横向向外延伸，并且限定了用于沿远离前轮和地面排出废气的排气口。冷却风由发动机的冷却风扇吹入消声罩。消音器盖限定用于将冷却空气向前引导到车体的排气口。

9. 发明授权

US4926624A Lawn mower 失效
公开(公告)号：US4926624A
公开(公告)日：1990-05-22
申请号：US333753
申请日：1989-04-03
申请人： Masatake Murakawa , Niro Bando , Masatsugu Tone , Mikio Yuki , Junji Miyata , Tetsuaki Hayashi , Kazuaki Kurohara
发明人： Masatake Murakawa , Niro Bando , Masatsugu Tone , Mikio Yuki , Junji Miyata , Tetsuaki Hayashi , Kazuaki Kurohara
IPC分类号： A01D34/63 , A01D43/063
CPC分类号： A01D43/063 , A01D2101/00 , A01D34/63
摘要： A lawn mower comprising a cutting unit disposed between front and rear wheels, a grass discharge duct extending rearwardly from the cutting unit, and grass collecting containers each defining a top opening for receiving grass clippings sent through the discharge duct. The containers are supported by an E-shaped frame connected to, and retained by pins in, open rear ends of right and left pipe frames extending rearwardly and then upwardly from a mower body. The E-shaped frame engages the open rear ends of the pipe frames to interconnect the rear ends with a selected spacing therebetween.

10. 发明授权

US5873224A Power transmitting structure for a self-propelling vehicle having a working implement 失效
标题翻译：具有工作工具的自推进车辆的动力传递结构
公开(公告)号：US5873224A
公开(公告)日：1999-02-23
申请号：US711451
申请日：1996-09-06
申请人： Masatake Murakawa , Hiroki Nagai , Kazuaki Kurohara
发明人： Masatake Murakawa , Hiroki Nagai , Kazuaki Kurohara
IPC分类号： A01D34/64 , B60K5/02 , B60K5/06 , B60K17/10 , B60K17/28 , B60K25/06 , A01D34/66 , A01D34/82
CPC分类号： A01D34/64 , B60K17/28 , A01D2101/00 , B60K17/105 , B60K25/06 , B60K5/02 , B60K5/06 , B60Y2200/223 , Y10S56/06 , Y10S56/22
摘要： A power transmitting structure for a mid-mount mower having a mower unit disposed in a middle region of a vehicle body. The power transmitting structure includes an engine disposed adjacent front wheels, axle shafts for rotating drive wheels, a stepless transmission operatively connected to the axle shafts, and a power branching device. The power branching device includes a branch input shaft connected to the engine through an engine power transmitting device extending longitudinally of the vehicle body, a first branch output operatively connected to the stepless transmission, and a second branch output operatively connected to the mower unit. The first branch output is a pulley connected to an input pulley of the stepless transmission through a belt to transmit power to the input pulley. The power branching device is disposed independently of and spaced from the stepless transmission. The mower unit is suspended below the engine power transmitting device between the engine and the power branching device.
摘要翻译：一种用于具有设置在车体的中间区域中的割草机单元的中型割草机的动力传递结构。动力传递结构包括邻近前轮设置的发动机，用于旋转驱动轮的车轴，可操作地连接到车轴的无级变速器和动力分配装置。动力分配装置包括通过沿车身纵向延伸的发动机动力传递装置连接到发动机的分支输入轴，可操作地连接到无级变速器的第一分支输出和可操作地连接到割草机单元的第二分支输出。第一分支输出是通过皮带连接到无级变速器的输入滑轮的滑轮，以将动力传递到输入滑轮。功率分支装置与无级变速器独立地设置并与其隔开。割草机单元悬挂在发动机和动力分配装置之间的发动机动力传递装置下方。

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