초록 ▼

A tool for positioning a tapered anchor bolt assembly with its part initially oriented in a hole in a concrete wall which has been undercut to provide a conical hole portion, and for setting the anchor bolt by rigidly holding its cone properly positioned opposite the conical portion of the hole whil

A tool for positioning a tapered anchor bolt assembly with its part initially oriented in a hole in a concrete wall which has been undercut to provide a conical hole portion, and for setting the anchor bolt by rigidly holding its cone properly positioned opposite the conical portion of the hole while impact-driving its sleeve inwardly of the hole to expand it over the anchor cone and fill the conical undercut portion of the hole to set the anchor therein, the tool having mutually interfering parts which limit the distance that the sleeve can be driven inwardly with respect to the cone so as to limit the driving effect of impact applied to the tool.

대표청구항 ▼

An impact tool for positioning and setting an anchor bolt assembly in a hole extending inwardly through the wall surface of a structure, the anchor asssembly being of the type including a stud bolt having a threaded outer end extending from the wall and an inner end carrying the smaller end of a con

An impact tool for positioning and setting an anchor bolt assembly in a hole extending inwardly through the wall surface of a structure, the anchor asssembly being of the type including a stud bolt having a threaded outer end extending from the wall and an inner end carrying the smaller end of a cone which enlarges away from said surface and the assembly further including a sleeve surrounding the bolt and operative to have its inner end expanded by the cone when the sleeve is axially moved over it, the tool comprising: (a) a holder member having a bore therethrough to receive the outer end of the bolt and the sleeve and having means to rigidly support the threaded outer end of the bolt, and having at one end of said bore a transverse face oriented normal to the axis of the bolt to abut the surface of the wall and position the cone a fixed distance inside the hole; (b) a driver member which is an element separate from said holder member and which is insertable into the bore of the holder member in axial alignment with the outer end of the sleeve and operative to be impact-driven in the direction of said cone to drive the sleeve further into the wall so that its inner end is expanded over the rigidly positioned cone; and (c) said means to rigidly support the outer end of the bolt to position the cone at a fixed distance inside the hole comprising complementarily threaded means in said holder member to receive and engage the threaded end of the stud bolt.