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    • 1. 发明授权
    • Setting tool for self-cutting undercut anchors
    • 自切割底切锚定装置
    • US6012358A
    • 2000-01-11
    • US879000
    • 1997-06-19
    • Reinhard LinsErich WisserHelmut GassnerSusanne KossianRainer KussmaulHermann BeckMarkus Hartmann
    • Reinhard LinsErich WisserHelmut GassnerSusanne KossianRainer KussmaulHermann BeckMarkus Hartmann
    • E04B1/41B25B31/00F16B13/04F16B13/06B25B9/00
    • B25B31/00Y10T29/53883Y10T29/5393
    • A tool for setting self-cutting undercut anchors (6) in boreholes (B) in a receiving material (G) includes anchors (6) formed of an axially extending anchor rod (7) with a conically shaped surface at a leading end of the rod widening in the setting direction, and an axially extending rotatable sleeve (9) laterally enclosing the anchor rod and which is axially displaceable against the conically shaped surface for effecting radially outward spreading of cutting tabs located at the leading end of the sleeve. The cutting tabs form an undercut (U) in the inner surface of the borehole (B) as the sleeve is rotated. The tool has a rotatable propelling part (2) for the sleeve (9) of the undercut anchor (6) and a trailing end (3) of the propelling part is arranged for insertion into a chuck of a rotary hammer drill. The propelling part (2) cooperates with a support element (4) arranged to be supported by the surface of the receiving material (G) in which the borehole (B) is formed. The support element (4) has a receptacle (5) for the trailing end of the anchor rod in which the anchor rod can be axially fixed. The propelling part (2) can be displaced axially relative to the support element.
    • 用于在接收材料(G)中的钻孔(B)中设置自切割底切锚定件(6)的工具包括由轴向延伸的锚杆(7)形成的锚定件(6),所述锚定件(6)在锥形表面的前端处具有锥形表面 杆在设置方向上变宽,以及轴向延伸的可旋转套筒(9),其横向地包围锚杆,并且可轴向移动抵靠锥形表面,以实现位于套筒前端处的切割片的径向向外扩展。 当套筒旋转时,切割突片在钻孔(B)的内表面中形成底切(U)。 工具具有用于底切锚固件(6)的套筒(9)的可旋转推进部分(2),并且推进部分的后端(3)布置成插入到旋转锤钻机的卡盘中。 推进部分(2)与布置成由形成有钻孔(B)的接收材料(G)的表面支撑的支撑元件(4)协作。 支撑元件(4)具有用于锚杆后端的容器(5),其中锚杆可以轴向地固定在该容器中。 推进部分(2)可以相对于支撑元件轴向移位。