Blower attachment for portable power unit
    3.
    发明授权
    Blower attachment for portable power unit 失效
    便携式动力装置的鼓风机附件

    公开(公告)号:US4413371A

    公开(公告)日:1983-11-08

    申请号:US278694

    申请日:1981-06-29

    IPC分类号: A47L5/14 E01H1/08

    CPC分类号: E01H1/0809 A47L5/14

    摘要: A lightweight air blower attachment for a portable power unit such as a hand held internal combustion engine. The blower attachment includes a generally tubular shaped housing adapted for close coupling of the blower to the power unit. The housing provides a shroud and a support for an axial flow impeller having a shaft which extends through a mounting boss on the housing and includes a drive tang adapted to be drivably connected to a power takeoff shaft. The blower includes an elongated nozzle having a handle portion and being rotatably mounted on the housing to provide for changing the direction of the exit air flow without rotating the entire power unit and blower attachment. The nozzle is provided with a conical portion which converges to a throat and transitions to a somewhat flat circular sector shaped air exit portion providing for an air flow pattern particularly adapted for sweeping and dusting operations.

    摘要翻译: 用于便携式动力单元(例如手持式内燃机)的轻型鼓风机附件。 鼓风机附件包括适于将鼓风机紧密地联接到动力单元的大致管状的壳体。 外壳为轴流式叶轮提供护罩和支撑件,该轴流式叶轮具有延伸穿过壳体上的安装凸台的轴,并且包括适于被驱动地连接到动力输出轴的驱动柄。 鼓风机包括具有手柄部分并且可旋转地安装在壳体上的细长喷嘴,以提供改变出口空气流的方向,而不旋转整个动力单元和鼓风机附件。 喷嘴设置有锥形部分,其收敛到喉部并且转变到稍微平坦的圆形扇形空气出口部分,其提供特别适于扫掠和除尘操作的气流模式。

    Lawn edger
    4.
    发明授权
    Lawn edger 失效
    草坪修边

    公开(公告)号:US4364435A

    公开(公告)日:1982-12-21

    申请号:US218560

    申请日:1980-12-22

    IPC分类号: A01G3/06

    CPC分类号: A01G3/062 Y10S56/18

    摘要: A power operated lawn edger includes a power unit comprising an internal combustion engine having a handle portion and being connected to one end of an elongated support boom. A cutter head including a vertically disposed rotating cutter blade is mounted at the other end of the support and comprises a right angle gear drive unit which is driven by the power unit through an elongated drive shaft mounted within the support. The cutter head includes a single adjustable gauge wheel for varying the depth of cut in normal operation of the edger. The gauge wheel is mounted on a support bracket which is pivotally connected to the cutter head. The gauge wheel support bracket is releasably retained in a selected position by a manually adjustable retaining member. A laterally projecting tubular support handle is mounted on the support by a bracket member which provides for moving the handle between a folded position alongside the power unit and a working position.

    摘要翻译: 动力操作的草坪修整机包括动力单元,该动力单元包括具有手柄部分并连接到细长支撑吊杆的一端的内燃机。 包括垂直设置的旋转切割刀片的刀头安装在支撑件的另一端,并且包括直角齿轮驱动单元,该直角齿轮驱动单元通过安装在支撑件内的细长驱动轴由动力单元驱动。 刀头包括用于改变磨边机正常操作的切割深度的单个可调量规轮。 量规轮安装在支撑托架上,支撑托架可枢转地连接到刀头。 量规轮支撑托架通过可手动调节的保持构件可释放地保持在选定位置。 横向突出的管状支撑手柄通过支架构件安装在支撑件上,托架构件提供了在动力单元旁边的折叠位置与工作位置之间移动手柄。

    Portable power operated cultivator with axially adjustable shield
    5.
    发明授权
    Portable power operated cultivator with axially adjustable shield 失效
    便携式电动耕耘机,带有可调节的屏蔽

    公开(公告)号:US4421176A

    公开(公告)日:1983-12-20

    申请号:US210028

    申请日:1980-11-24

    IPC分类号: A01B1/06 A01B33/02

    CPC分类号: A01B1/065 A01B33/027

    摘要: A portable power operated cultivator includes a power unit comprising an internal combustion engine having a handle portion and being connected to one end of an elongated boom. A right angle gear drive mechanism is mounted on the opposite end of the boom and is driveably interconnected with the power unit by an elongated drive shaft disposed within the boom. An output shaft extends from opposite sides of the gear drive unit and is adapted to mount respective rotary cultivator blades on the ends thereof. A second handle is adjustably mounted on the boom to provide for a balanced weight distribution of the cultivator unit. The spaced apart cultivator blades are identical and include a plurality of radially projecting ground engaging tines. Adjacent tines on each blade have tip portions which are bent in the opposite direction with respect to each other along a bend line which provides for a positive angle of incidence or entry of the tine into the earth being worked by the cultivator. The tines of one blade are angularly offset with respect to the tines of the other blade to enhance the digging action of the cultivator unit.

    摘要翻译: 一种便携式动力操作的耕耘机包括动力单元,该动力单元包括具有把手部分并连接到细长吊杆的一端的内燃机。 直角齿轮驱动机构安装在动臂的相对端上,并通过设置在动臂内的细长驱动轴与动力单元可驱动地互连。 输出轴从齿轮驱动单元的相对侧延伸并且适于在其端部安装相应的旋转式耕耘机叶片。 第二把手可调节地安装在起重臂上,以提供耕耘机单元的平衡重量分布。 间隔开的耕耘机叶片是相同的并且包括多个径向突出的地面啮合齿。 每个刀片上的相邻尖齿具有尖端部分,该尖端部分沿着相对于彼此的相反方向弯曲,该弯曲线提供齿的正入射角或入口到由耕作机加工的地球中。 一个叶片的尖齿相对于另一个叶片的齿角成角度地偏移,以增强耕耘机单元的挖掘作用。

    Powered snow removal apparatus
    6.
    发明授权
    Powered snow removal apparatus 失效
    动力除雪装置

    公开(公告)号:US4378644A

    公开(公告)日:1983-04-05

    申请号:US233994

    申请日:1981-02-12

    IPC分类号: E01H5/04 E01H5/00

    CPC分类号: E01H5/04

    摘要: A hand carriable powered snow removal apparatus having an internal combustion engine power unit removably connected to one end of a tubular boom which supports an elongated drive shaft connected to the engine power takeoff shaft at and to a right angle drive gear unit mounted at the opposite end of the boom. The gear unit includes a housing mounted on the end of the boom and providing a centered drive arrangement for a pair of opposed paddle type impellers mounted on respective ends of an output shaft projecting from opposite sides of the gear housing. A shroud mounted on the gear housing includes an upwardly projecting rear wall and spaced apart lateral side walls partially enclosing the impellers and providing directional control for the snow being discharged from the impellers. A set of movable guide vanes is mounted on the forward end of the shroud and is adjustable to provide for varying the directional attitude of snow being discharged from the shroud. The interior of the rear wall forms a substantially continuous smooth surface which reduces the tendency for snow to accumulate and clog the normal flow path of the snow being discharged by the impellers. A removable scraper bar is mounted on the lower edge of the shroud and also serves as a skid for the apparatus while it is in operation. A handle on the power unit and an adjustable handle on the tubular boom provide for handling and maneuvering the apparatus.

    摘要翻译: 一种手提动力除雪装置,其具有可拆卸地连接到管状吊杆的一端的内燃机动力单元,管状吊杆支撑连接到发动机动力输出轴的细长驱动轴,并且安装在相对端的直角驱动齿轮单元 的繁荣。 齿轮单元包括安装在悬臂的端部上的壳体,并为安装在从齿轮壳体的相对侧突出的输出轴的相应端部上的一对相对的桨式叶轮提供中心的驱动装置。 安装在齿轮壳体上的护罩包括向上突出的后壁和间隔开的横向侧壁,其部分地包围叶轮并为从叶轮排出的雪提供方向控制。 一组可移动导向叶片安装在护罩的前端,并且可调节以提供改变从护罩排出的积雪的方向姿态。 后壁的内部形成基本上连续的平滑表面,其减少积雪的趋势并阻塞由叶轮排出的积雪的正常流动路径。 可拆卸的刮刀杆安装在护罩的下边缘处,并且还用作装置在运行时的滑动件。 动力装置上的手柄和管状吊杆上的可调手柄,用于处理和操纵装置。

    Method and apparatus for fast start fuel system for an internal
combustion engine
    7.
    发明授权
    Method and apparatus for fast start fuel system for an internal combustion engine 有权
    用于内燃机的快速启动燃料系统的方法和装置

    公开(公告)号:US6079697A

    公开(公告)日:2000-06-27

    申请号:US244522

    申请日:1999-02-04

    IPC分类号: F02M1/02 F02M1/16 F02M17/04

    摘要: A fuel delivery system for an internal combustion engine. The fuel delivery system includes a carburetor housing having an air passage with a throttle valve disposed therein. A choke lever is movably mounted to the carburetor housing for restricting air flow into the air passage. A fuel injection device is provided for injecting fuel into the air passage before the engine is started. Movement of the choke lever to an engaged position simultaneously opens the throttle valve, restricts air flow into the air passage and activates the fuel injection device to inject a predetermined volume of fuel into the air passage. The air-flow restriction and the predetermined volume of fuel are adjusted to compensate for changes in ambient temperature.

    摘要翻译: 一种用于内燃机的燃料输送系统。 燃料输送系统包括具有设置在其中的具有节流阀的空气通道的化油器壳体。 扼流杆可移动地安装在化油器壳体上,用于限制空气流入空气通道。 一种燃料喷射装置,用于在发动机启动之前将燃料喷射到空气通道中。 扼流杆移动到接合位置同时打开节流阀,限制空气流入空气通道并启动燃料喷射装置,以将预定体积的燃料喷射到空气通道中。 调节气流限制和预定体积的燃料以补偿环境温度的变化。

    Line head for a rotary line trimmer
    9.
    发明授权
    Line head for a rotary line trimmer 失效
    旋转线切割机的线头

    公开(公告)号:US5303476A

    公开(公告)日:1994-04-19

    申请号:US968376

    申请日:1992-10-29

    申请人: Lloyd H. Tuggle

    发明人: Lloyd H. Tuggle

    IPC分类号: A01D34/416 A01D55/00

    CPC分类号: A01D34/4166

    摘要: A line head (10) for a rotary line trimmer uses a bail (16) to clasp a single length of cutting line (18). The head has a first and second side (12, 14). The first side (12) of the head (10) has a plurality of radial ridges extending radially from a central shaft engagement hub (20). The second side has several raised portions (44, 46, 48, 50) which define a first and second channel (17, 19). The bail (16) rotates between an open position to a closed position in the first channel. The second channel (19) is dimensioned to engage the cutting line. The bail (16) has a clasp means (16c) which removably engages a lip portion (42) when the bail is in the closed position. The bail (16) also has a central portion (16b) which overlays the second channel (19) when the bail is in the closed position.

    摘要翻译: 用于旋转线切割器的线头(10)使用吊环(16)扣紧单个长度的切割线(18)。 头部具有第一和第二侧(12,14)。 头部(10)的第一侧(12)具有从中心轴接合毂(20)径向延伸的多个径向脊。 第二侧具有限定第一和第二通道(17,19)的几个凸起部分(44,46,48,50)。 吊钩(16)在第一通道中的打开位置到关闭位置之间旋转。 第二通道(19)的尺寸适于接合切割线。 吊钩(16)具有当吊钩处于关闭位置时可拆卸地接合唇部(42)的扣环装置(16c)。 当吊环处于关闭位置时,吊环(16)还具有覆盖第二通道(19)的中心部分(16b)。

    Portable rotary power tool
    10.
    发明授权
    Portable rotary power tool 失效
    便携式旋转电动工具

    公开(公告)号:US4841929A

    公开(公告)日:1989-06-27

    申请号:US253303

    申请日:1988-09-30

    摘要: A gasoline engine driven flexible line trimmer is provided with a modularly constructed power head section which significantly facilitates the original manufacturing assembly, and subsequent service disassembly, of the power head. In a clutch drive embodiment thereof, the power head has four readily separable modules--an engine module comprising a main engine shroud to which the engine is internally secured; a fan housing module; a starter module comprising a starter housing and a recoil starter mechanism retained therein; and a coupling module comprising a clutch housing carrying therein structure for operatively interconnecting the engine's clutch to the flexible drive shaft disposed within the trimmer shaft. In a direct drive version thereof, the power head has two separable modules--the engine module and a combined fan housing, starter and coupling module defined by a single housing within which the starter and coupling structure is carried. Pull rope installation in the starter mechanism is facilitated and made safer by pulley locking and retaining structure incorporated in the starter module, and improved air filter element sealing is provided by virtue of a specially designed air filter housing and choke plate assembly associated with the carburetor. Shaft vibration transmitted to the trimmer user through the supporting shoulder strap structure is significantly reduced by a specially designed resilient strap connector assembly securable to the trimmer shaft.

    摘要翻译: 汽油发动机驱动的柔性线切割器设置有模块化构造的动力头部分,其显着地促进动力头的原始制造组件和随后的拆卸。 在其离合器驱动实施例中,动力头具有四个易于分离的模块 - 发动机模块,其包括主发动机罩,发动机内部固定到主发动机罩; 风扇外壳模块; 起动器模块,包括保持在其中的起动器壳体和反冲起动机构; 以及耦合模块,其包括承载其中结构的离合器壳体,用于将发动机的离合器可操作地互连到设置在修剪器轴内的柔性驱动轴。 在其直接驱动版本中,动力头具有两个可分离的模块 - 发动机模块和组合的风扇壳体,由单个壳体限定的起动器和联接模块,其中承载起动器和联接结构。 引导机构中的拉绳安装方便,并且通过结合在起动器模块中的滑轮锁定和保持结构而使安全性更高,并且借助于与化油器相关联的专门设计的空气过滤器壳体和阻风板组件来提供改进的空气过滤元件密封。 通过支撑肩带结构传递给修剪器用户的轴振动通过专门设计的可修剪微调轴的弹性带连接器组件显着减少。