Impact wrench
    3.
    发明授权
    Impact wrench 有权
    冲击扳手

    公开(公告)号:US08490714B2

    公开(公告)日:2013-07-23

    申请号:US13297430

    申请日:2011-11-16

    申请人: Akinori Nakamura

    发明人: Akinori Nakamura

    IPC分类号: B25D11/04

    CPC分类号: B25B21/026 B25B21/00

    摘要: An impact wrench is provided that can mitigate vibrations in the axial direction without reducing the rotary impact force of hammers. The hammers are composed of a primary hammer fitted to the outer circumference of a spindle and a cylindrical secondary hammer that is disposed so as to cover the primary hammer and that rotates integrally with the primary hammer. Furthermore, the secondary hammer is held by a center holding means in a state in which the rotational axis of the secondary hammer is coincident with the axis of the spindle in order to prevent run-out movement. With the use of the hammer configuration of the present invention, the mass of the primary hammer can be decreased compared to that of the secondary hammer, and therefore it is possible to mitigate vibrations in the axial direction while maintaining the rotary impact force.

    摘要翻译: 提供了可以减轻轴向振动而不降低锤的旋转冲击力的冲击扳手。 锤由安装在心轴外周的主锤和圆筒形二次锤构成,该二次锤设置为覆盖主锤并与主锤整体旋转。 此外,为了防止偏离运动,二次锤由中心保持装置保持在二次锤的旋转轴线与心轴的轴线重合的状态。 通过使用本发明的锤结构,与二次锤相比,主锤的质量可以降低,因此可以在保持旋转冲击力的同时减轻轴向振动。

    IMPACT WRENCH
    6.
    发明申请
    IMPACT WRENCH 有权
    冲击扳手

    公开(公告)号:US20120073845A1

    公开(公告)日:2012-03-29

    申请号:US13297430

    申请日:2011-11-16

    申请人: Akinori NAKAMURA

    发明人: Akinori NAKAMURA

    IPC分类号: B25B21/02

    CPC分类号: B25B21/026 B25B21/00

    摘要: An impact wrench is provided that can mitigate vibrations in the axial direction without reducing the rotary impact force of hammers. The hammers are composed of a primary hammer fitted to the outer circumference of a spindle and a cylindrical secondary hammer that is disposed so as to cover the primary hammer and that rotates integrally with the primary hammer. Furthermore, the secondary hammer is held by a center holding means in a state in which the rotational axis of the secondary hammer is coincident with the axis of the spindle in order to prevent run-out movement. With the use of the hammer configuration of the present invention, the mass of the primary hammer can be decreased compared to that of the secondary hammer, and therefore it is possible to mitigate vibrations in the axial direction while maintaining the rotary impact force.

    摘要翻译: 提供了可以减轻轴向振动而不降低锤的旋转冲击力的冲击扳手。 锤由安装在心轴外周的主锤和圆筒形二次锤构成,该二次锤设置为覆盖主锤并与主锤整体旋转。 此外,为了防止偏离运动,二次锤由中心保持装置保持在二次锤的旋转轴线与心轴的轴线重合的状态。 通过使用本发明的锤结构,与二次锤相比,主锤的质量可以降低,因此可以在保持旋转冲击力的同时减轻轴向振动。

    Arc furnace for making steel from directly reduced iron
    7.
    发明授权
    Arc furnace for making steel from directly reduced iron 失效
    用于从直接还原铁制造钢的电弧炉

    公开(公告)号:US4238632A

    公开(公告)日:1980-12-09

    申请号:US18660

    申请日:1979-03-06

    CPC分类号: F27B3/085 F27B3/24

    摘要: An arc furnace for quickly and continuously melting directly reduced iron ore so as to make steel, wherein the furnace wall above the hearth line and the furnace roof have partly spherical inner surfaces, the spherical surface defining these inner surfaces having the center located adjacent to the point equidistantly spaced apart from the lower ends of electrodes, and the electrodes are inclined at an angle to the vertical so that the distance between the lower ends thereof may be reduced to a minimum.

    摘要翻译: 一种电弧炉,用于快速且连续地熔化直接还原的铁矿石以制造钢,其中炉底线和炉顶上方的炉壁具有部分球形内表面,球形表面限定这些内表面,其中心位于 点与电极的下端等距离地间隔开,并且电极以与垂直方向成一定角度倾斜,使得其下端之间的距离可以减小到最小。

    Air saw
    10.
    发明授权
    Air saw 失效
    空气锯

    公开(公告)号:US07207116B2

    公开(公告)日:2007-04-24

    申请号:US10237129

    申请日:2002-09-09

    申请人: Akinori Nakamura

    发明人: Akinori Nakamura

    CPC分类号: B23D51/18 Y10T83/929

    摘要: A main spindle of an air saw is reciprocated by sliding a piston in a cylinder chamber with the pressure of air supplied to the cylinder chamber via an air supply path so as to alternately apply the air pressure to pressure-receiving surfaces of a back plate and a front plate, wherein a rear air-cushion chamber is formed in a portion for fixing a return spring for urging the back plate toward the center of a cylinder while a front air-cushion chamber is formed in a portion for fixing a return spring for urging the front plate toward the center of the cylinder, so that the front and rear balance is maintained.

    摘要翻译: 空气锯的主轴通过滑动气缸室中的活塞而经由空气供给路径供给到气缸室的空气的压力而往复运动,以便将空气压力交替地施加到背板的受压面和 前板,其中后气垫室形成在用于固定用于将背板推向气缸的中心的复位弹簧的部分,而前气垫室形成在用于固定回转弹簧的部分中 将前板推向气缸的中心,以保持前后平衡。