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17 条记录 (耗时 0.038 秒)

    Rotary hammer including breather port
    7.
    发明授权
    Rotary hammer including breather port 有权
    旋转锤包括呼吸口

    公开(公告)号：US07168504B2

    公开(公告)日：2007-01-30

    申请号：US11348117

    申请日：2006-02-06

    申请人： Jason D. Hetcher ,  David R. Bauer ,  Dragomir C. Marinkovich ,  Michael E. Weber

    发明人： Jason D. Hetcher ,  David R. Bauer ,  Dragomir C. Marinkovich ,  Michael E. Weber

    IPC分类号： E21B10/22

    CPC分类号： B25D17/06 ,  B25D11/005 ,  B25D11/125 ,  B25D16/00 ,  B25D17/088 ,  B25D17/26 ,  B25D2211/003 ,  B25D2211/068 ,  B25D2216/0023 ,  B25D2217/0049 ,  B25D2217/0061 ,  B25D2222/57 ,  B25D2250/035 ,  B25D2250/131 ,  B25D2250/185 ,  B25D2250/191 ,  Y10S173/03

    摘要： A rotary hammer and a power tool. The rotary hammer is operable in an idle mode and a hammer mode and comprises a housing and a barrel positioned in the housing and having a forward portion. A ram is positioned within the barrel and is movable relative to the barrel between hammering positions and an idle position. In some aspects, a ram catcher assembly is positioned along the axis adjacent the forward portion of the barrel to releasably hold the ram in the idle position. The ram catcher assembly includes a friction member frictionally engageable with the ram and a damping member at least partially surrounding the friction member. As the ram moves to the idle position with a force, the damping member absorbs at least a portion of the force and the member applies friction to the ram.

    摘要翻译： 旋转锤和电动工具。 旋转锤可在空闲模式和锤击模式下操作，并且包括壳体和位于壳体中并具有前部的筒体。 柱塞定位在筒体内并且可相对于筒体在锤击位置和空转位置之间移动。 在一些方面，压头捕集器组件沿着邻近筒的前部的轴线定位，以可释放地将压头保持在空闲位置。 该活塞捕集器组件包括摩擦构件，该摩擦构件可与该冲头摩擦接合，以及至少部分围绕摩擦构件的阻尼构件。 当冲头用力移动到空闲位置时，阻尼构件吸收至少一部分力并且构件对冲头施加摩擦力。

    Rotary hammer with improved pneumatic drive system
    9.
    发明授权
    Rotary hammer with improved pneumatic drive system 失效
    旋转锤具有改进的气动驱动系统

    公开(公告)号：US5954140A

    公开(公告)日：1999-09-21

    申请号：US878053

    申请日：1997-06-18

    申请人： David R. Bauer

    发明人： David R. Bauer

    IPC分类号： B23B45/16 ,  B25D16/00 ,  B25D9/04

    CPC分类号： B25D16/00 ,  B25D2211/003 ,  B25D2211/068 ,  B25D2216/0023

    摘要： A rotary hammer operable in an idle mode and a hammer mode. The rotary hammer includes a housing, a barrel positioned in the housing and including a side wall having a port, a ram positioned within the barrel and axially movable relative to the barrel, and a seal supported on the mid-portion of the ram and forming a seal between the side wall and the ram. The seal has a range of motion relative to the barrel, and the port is located in the side wall such that the port is beyond the range of motion of the seal. The hammer further includes a tool supported by the hammer, and engagement of the tool with a workpiece moves the barrel relative to the housing and changes the hammer from the idle mode to the hammer mode. The hammer further includes a biasing member, such as a spring, biasing the hammer toward the idle mode.

    摘要翻译： 旋转锤可在空转模式和锤击模式下操作。 旋转锤包括壳体，位于壳体中的筒体，并且包括具有端口的侧壁，定位在筒体内并可相对于筒体轴向移动的冲头，以及支撑在冲头中部的密封件，并形成 侧壁和压头之间的密封。 密封件具有相对于筒体的运动范围，并且端口位于侧壁中，使得端口超出密封件的运动范围。 锤还包括由锤支撑的工具，并且工具与工件的接合使筒相对于壳体移动，并将锤从空闲模式改变为锤模式。 锤子还包括诸如弹簧的偏置构件，将锤子朝向空闲模式偏置。