公开(公告)号：US06484486B2

公开(公告)日：2002-11-26

申请号：US09997618

申请日：2001-11-29

申请人： Hiroki Nagai ,  Nobuyuki Yamashita ,  Mikio Yuki ,  Hiroshi Oshima ,  Masatake Murakawa ,  Hiroshi Kawabata

发明人： Hiroki Nagai ,  Nobuyuki Yamashita ,  Mikio Yuki ,  Hiroshi Oshima ,  Masatake Murakawa ,  Hiroshi Kawabata

IPC分类号： A01D1900

CPC分类号： A01D43/063 ,  A01D34/63 ,  A01D43/0635 ,  A01D2101/00

摘要： A mower unit of grass cutting machine has at least two blades. The left blade is rotatable clockwise, while the right blade is rotatable counterclockwise. A grass discharge passage is formed between the two blades. An endless rotational belt for transmitting drive to the two blades is offset forwardly in a region between the blades, thereby forming, between the blades, a space without the endless rotational belt. The grass discharge passage has an upper surface inclined rearwardly and upwardly to extend from a position forwardly of a pair of pulleys corresponding to the two blades.

摘要翻译： 割草机割草机至少有两个叶片。 左刀片可顺时针旋转，右刀片可逆时针旋转。 在两个叶片之间形成一个草排出通道。 用于将驱动传递到两个叶片的无端旋转带在叶片之间的区域中向前偏移，从而在叶片之间形成没有环形旋转带的空间。 草排出通道具有从对应于两个叶片的一对滑轮的前方的位置向后并向上倾斜的上表面。

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。

公开(公告)号：US5113819A

公开(公告)日：1992-05-19

申请号：US668028

申请日：1991-03-12

申请人： Masatake Murakawa ,  Ryozo Imanishi ,  Yoji Fujiwara

发明人： Masatake Murakawa ,  Ryozo Imanishi ,  Yoji Fujiwara

IPC分类号： B60K11/02 ,  F01P1/00 ,  F01P3/00 ,  F01P3/18 ,  F01P9/00 ,  F01P11/08 ,  F01P11/12

CPC分类号： B60K11/02 ,  F01P3/18 ,  F01P9/00 ,  F01P11/08 ,  F01P11/12 ,  F01P2001/005 ,  F01P2003/006 ,  F01P2060/04

摘要： A cooling system for a vertical, liquid cooled engine having a first passage for guiding cooling air to a cooling fan disposed above the engine, and a second passage for guiding the cooling air drawn by the cooling fan to flow past the engine and to be exhausted forwardly and downwardly of the engine. The first passage includes an air inlet defined rearwardly of the engine, and is defined by part of an engine hood, a vertical bracket plate erected behind the engine, and a partition extending from the engine hood over an upper surface of the engine. Devices accessory to the engine which are vulnerable to the heat are mounted in a space inside the first passage. The second passage is formed by an air guide cover enveloping the engine and cooling fan and defining an opening in a region opposed to the cooling fan. The air guide cover includes a front portion extending downwardly along the cylinder head. The second passage contains a liquid cooler disposed between an upper surface of the cylinder head and the air guide cover, and a muffler in an exhaust region the second passage. The first and second passages are interconnected through the cooling fan, and define a substantially airtight space from air intake end to exhaust end.

摘要翻译： 一种用于垂直液冷发动机的冷却系统，具有用于将冷却空气引导到设置在发动机上方的冷却风扇的第一通道，以及用于引导由冷却风扇吸入的冷却空气流过发动机并被排出的第二通道 向前和向下的发动机。 第一通道包括限定在发动机后方的空气入口，并且由发动机罩的一部分，竖立在发动机后面的垂直支架板以及从发动机罩延伸到发动机的上表面上的隔板限定。 易受热的发动机附件的装置安装在第一通道内的空间中。 第二通道由包围发动机和冷却风扇的空气引导盖形成，并且在与冷却风扇相对的区域中限定开口。 导气盖包括沿气缸盖向下延伸的前部。 第二通道包括设置在气缸盖的上表面和空气引导罩之间的液体冷却器和位于第二通道的排气区域中的消音器。 第一和第二通道通过冷却风扇相互连接，并且限定从进气端到排气端的基本气密的空间。

公开(公告)号：US5224327A

公开(公告)日：1993-07-06

申请号：US902605

申请日：1992-06-23

申请人： Akira Minoura ,  Masagi Kure ,  Yoji Fujiwara ,  Masatake Murakawa ,  Masatsugu Tone ,  Mikio Yuki

发明人： Akira Minoura ,  Masagi Kure ,  Yoji Fujiwara ,  Masatake Murakawa ,  Masatsugu Tone ,  Mikio Yuki

IPC分类号： A01D34/63 ,  A01D43/077

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

摘要： A lawn mower includes a blade housing enclosing grass cutting blades and having a lateral discharge opening, a blower unit connected to the discharge opening, and a duct connected to the blower unit for transporting grass clippings to a grass catcher. The blower unit includes an elbow-like lower blower housing connected to the blade housing, an upper blower housing having a substantially vertical cylindrical side wall connected to the duct, and an impeller mounted in the upper blower housing to be rotatable about a vertical axis. The impeller has a plane of rotation above a plane of rotation of the blades. The lower blower housing includes a flange for connection to the upper blower housing. The flange has an opening elongated in a direction along a passage defined by the two blower housings. This opening has width approximately half of the diameter of the impeller.

摘要翻译： 割草机包括包围草切割刀片并具有横向排出口的叶片壳体，连接到排出口的鼓风机单元和连接到鼓风机单元的导管，用于将草地运送到草地捕集器。 鼓风机单元包括连接到叶片壳体的弯头状下鼓风机壳体，上鼓风机壳体，其具有连接到管道的基本垂直的圆柱形侧壁，以及安装在上鼓风机壳体中以可绕垂直轴线旋转的叶轮。 叶轮具有在叶片的旋转平面之上的旋转平面。 下鼓风机壳体包括用于连接到上鼓风机壳体的凸缘。 凸缘具有沿着由两个鼓风机壳体限定的通道的方向延伸的开口。 该开口的宽度大约为叶轮直径的一半。

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。

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.

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。

公开(公告)号：US5782312A

公开(公告)日：1998-07-21

申请号：US220006

申请日：1994-03-30

申请人： Masatake Murakawa

发明人： Masatake Murakawa

IPC分类号： B60K11/08 ,  B62D25/10

CPC分类号： B62D25/10 ,  B60K11/08 ,  B60Y2200/223

摘要： An engine enclosure for use on a vehicle having an engine disposed forwardly of a driver's seat. This engine enclosure has a control panel disposed rearwardly of the engine, and a hood disposed forwardly of the control panel for covering the engine. The hood includes a lower hood attached to vehicle frames through a fixing device, and an upper hood pivotable about a pivotal support disposed adjacent a forward end thereof so as to surround upper edges of the lower hood. The lower hood has a lower front wall portion, and lower side wall portions extending upward and opposed to each other across the engine. The lower side wall portions have a smaller distance therebetween in a lower region than in an intermediate region. The upper hood has a top wall portion, an upper front wall portion and upper side wall portions. The upper side wall portions have a greater distance therebetween in a lower region than in an intermediate region.

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。

公开(公告)号：US5367861A

公开(公告)日：1994-11-29

申请号：US978761

申请日：1992-11-19

申请人： Masatake Murakawa ,  Mikio Yuki ,  Ryozo Imanishi ,  Masatsugu Tone ,  Akira Minoura

发明人： Masatake Murakawa ,  Mikio Yuki ,  Ryozo Imanishi ,  Masatsugu Tone ,  Akira Minoura

IPC分类号： A01D34/64

CPC分类号： A01D34/64 ,  A01D2101/00 ,  Y10S56/22

摘要： A small riding lawn mower having a grass cutting unit suspended from a body frame between a front axle and a rear axle, an engine supported by a body frame in a position forwardly of the rear axle with respect to a longitudinal direction of the body frame, a hydrostatic transmission disposed rearwardly of the rear axle, and a driver's seat disposed forwardly of the engine. The body frame includes profile members disposed at opposite sides and extending longitudinally of the mower, and a cross plate interconnecting the profile members. A belt transmission mechanism connecting the hydrostatic transmission to an engine output shaft is surrounded by a plate frame structure formed below the body frame. The plate frame structure defines a further independent chamber for accommodating a muffler of the engine. This chamber has peripheral walls shaped to guide cooling air from the engine to the muffler and laterally outwardly of the mower.

摘要翻译： 一种小型骑马割草机，其具有从前车轴与后车轴之间的车身框架悬挂的切割单元，由主体框架相对于车身框架的纵向方向在后桥的前方位置支撑的发动机， 设置在后桥后方的静液传动装置和设置在发动机前方的驾驶员座椅。 主体框架包括设置在相对侧并且在割草机纵向延伸的轮廓构件和互连轮廓构件的十字板。 将液压传动装置连接到发动机输出轴上的带传动机构被形成在车身框架下方的板框结构包围。 板框结构限定了用于容纳发动机的消音器的另外的独立室。 该室具有成形为将冷却空气从发动机引导到消声器并且横向向外设置于割草机的周壁。