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A stud removing tool for removing a threaded stud from an associated stud mounting member having an elongated sleeve member with an internally threaded gripping end and an internally tapered stud locking end. A pilot member having a closed drive end, and an internally threaded bore end is provided.

A stud removing tool for removing a threaded stud from an associated stud mounting member having an elongated sleeve member with an internally threaded gripping end and an internally tapered stud locking end. A pilot member having a closed drive end, and an internally threaded bore end is provided. The drive end has an external angle of taper less than the internal angle of taper of the sleeve member, in which the angle of taper increases as it is directed toward the internally threaded bore end. The bore end of the pilot member has multiple finger splits directed from the open end to the closed end. When the tool is in use, the pilot is co-axially disposed in the sleeve member, with the bore end of the pilot threaded onto the end of a stud. A plug member is provided, having a driving end and an externally threaded mating end adapted to engage the internally threaded gripping end of the sleeve member and to axially abut the closed end of the pilot member. When the plug member is rotated within the sleeve, the plug member urges the pilot member co-axially along the sleeve toward the bore end until the external taper of the pilot member engages the internal taper of the sleeve member thereby forcing the finger splits on the pilot member to grip and frictionally lock on the free end of a stud. When the gripping end of the sleeve member is reversed, the stud is unthreaded from the associated stud mounting member. When the plug member is rotated in the opposite direction, the taper of the sleeve member and the taper of the pilot member may be disengaged by hand, thereby releasing the finger splits on the pilot member allowing the stud to be unthreaded from the tool.

대표청구항 ▼

A tool for removing or installing a threaded stud threadably to an associated stud mounting member, said tool comprising: an elongated sleeve member having an internally threaded gripping end and an internally tapered stud locking end; a pilot member having a closed drive end, and an internally thr

A tool for removing or installing a threaded stud threadably to an associated stud mounting member, said tool comprising: an elongated sleeve member having an internally threaded gripping end and an internally tapered stud locking end; a pilot member having a closed drive end, and an internally threaded open bore end, said open bore end having an external angle of taper less than the internal angle of taper of said sleeve member, said angle being directed toward said internally threaded bore end, said bore end having multiple finger splits directed from said open end to said closed drive end, whereby in use said pilot member is disposed in said sleeve member, with said bore end of said pilot threaded onto the end of an associated threaded stud; and a plug member having a driving end and an externally threaded mating end adapted to engage said internally threaded gripping end of said sleeve member and to axially abut said closed end of said pilot member, whereupon rotating said plug member within said sleeve member said pilot member is urged co-axially along said sleeve member toward said bore end until said external tape of said pilot member engages the internal taper of said sleeve member, thereby forcing said finger splits on said pilot member to grip and frictionally lock onto the free end of an associated threaded stud within said sleeve and whereupon counter-rotation of said gripping end of said sleeve member causes the associated threaded stud to be unthreaded from the associated stud mounting member, whereby upon said plug member being rotated in the opposite direction said taper of said sleeve member and said taper of said pilot member may be disengaged by hand, thereby releasing said finger splits on said pilot member and allowing the associated threaded stud to be unthreaded from said pilot member.