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    • 11. 发明授权
    • Expansion anchor assembly
    • 扩展锚组件
    • US4968200A
    • 1990-11-06
    • US422786
    • 1989-10-17
    • Fritz Mark
    • Fritz Mark
    • E04B1/41F16B13/06F16B19/10
    • F16B13/065
    • An expansion anchor assembly is made up of an expansion sleeve and an anchor rod. At one end, the expansion sleeve has a plurality of separate expansion parts radially deflectable about bending locations, by drawing an expansion cone on one end of the anchor rod into engagement with the expansion parts. Expansion parts can be displaced radially outwardly into a conically widened undercut in a borehole. To achieve surface area contact with the undercut, when the expansion parts are deflected outwardly, the radially inner and outer surfaces of the expansion parts are provided with a radius of curvature increasing from the bending locations to the free ends of the expansion parts.
    • 膨胀锚固组件由膨胀套筒和锚杆构成。 在一端,膨胀套筒具有多个可绕弯曲位置径向偏转的单独的膨胀部件,通过在锚杆的一端上拉伸膨胀锥体与膨胀部件接合。 膨胀部件可以径向向外移动到钻孔中的锥形加宽的底切。 为了实现与底切的表面积接触,当膨胀部分向外偏转时,膨胀部分的径向内表面和外表面设置有从弯曲位置增加到膨胀部分的自由端的曲率半径。
    • 13. 发明授权
    • Device for drilling borehole undercuts
    • 钻孔底切钻装置
    • US4930585A
    • 1990-06-05
    • US328114
    • 1989-03-23
    • Martin NoserFritz Mark
    • Martin NoserFritz Mark
    • B28D1/14B23B51/00B25H1/00
    • B23B51/0036B25H1/0064Y10T408/855
    • A device for drilling an undercut (1b) in a borehole (1a) in a target material 1, includes an axially extending guide sleeve (13) containing an axially extending eccentric bore, an eccentric bushing (14) is supported rotatably in the guide sleeve and a drive shaft (15) is supported rotatably in the eccentric bushing. A housing (10, 12) laterally encloses the guide sleeve and bears against the surface of the target material. A blocking member (25) is positioned between the housing (10, 12) and the guide sleeve (13) for permitting rotation of the guide sleeve in only one rotational direction relative to the housing (10, 12). Due to the blocking member (25) entrainment of the guide sleeve (13) is prevented when the eccentric bushing is rotated in the direction opposite to the one rotational direction.
    • 用于在目标材料1中的钻孔(1a)中钻出底切(1b)的装置包括轴向延伸的引导套筒(13),其包含轴向延伸的偏心孔,偏心衬套(14)可旋转地支撑在导向套筒 并且驱动轴(15)可旋转地支撑在偏心衬套中。 横向包围引导套筒并且抵靠目标材料表面的壳体(10,12)。 阻挡构件(25)定位在壳体(10,12)和导向套筒(13)之间,用于允许导向套筒相对于壳体(10,12)在一个旋转方向上旋转。 由于阻挡构件(25),当偏心衬套沿与一个旋转方向相反的方向旋转时,阻止引导套筒(13)的夹带。
    • 15. 发明授权
    • Suction attachment for a drilling tool
    • 钻具的吸附件
    • US4205728A
    • 1980-06-03
    • US946641
    • 1978-09-28
    • Peter GloorFritz Mark
    • Peter GloorFritz Mark
    • B23Q9/00B23Q11/00B25D17/14B28D1/14B28D7/02E21C7/02
    • B23Q11/0046Y02P70/171
    • A suction attachment for use with a drilling tool includes a muzzle part forming an opening through which a drill bit extends into contact with the material to be drilled. The muzzle part has a suction aperture communicating with the drill bit opening and a suction tube connected to the suction aperture. The suction tube includes a venturi tube section having a transverse plane of smallest cross-section spaced from the suction aperture. Extending from the transverse plane is a connecting passage which terminates at its other end in a suction recess formed in the surface of the muzzle part which faces the material to be drilled. The partial vacuum generated at the venturi tube section is transmitted through the connecting passage to the suction recess for holding the attachment on the material to be drilled.
    • 用于钻具的吸附装置包括形成开口的喷嘴部分,钻头通过该开口延伸成与要钻探的材料接触。 枪口部分具有与钻头开口连通的抽吸孔和连接到抽吸孔的抽吸管。 抽吸管包括文丘里管部分,其具有与吸入孔间隔开的最小横截面的横向平面。 从横向平面延伸的是连接通道,该连接通道的另一端终止于形成在枪口部分的面对待钻探材料的表面中的吸入凹槽中。 在文丘里管部分产生的部分真空通过连接通道传递到用于将附件保持在待钻探材料上的抽吸凹部。