| 摘要 |
A power-driven dent puller device for the repair of dented sheet metal is described. The device comprises a screw-threaded shaft assembly having a removable self-tapping screw at one end and a drive socket at the other end adapted for driving interconnection with an ordinary air wrench drive mechanism. Cooperative with the screw-threaded shaft assembly is a cylindrical abutment member having an apertured wall at one end for substantially coaxially receiving the screw-threaded shaft assembly and against which a loosely retained washer circumjacent an inner end portion of the screw-threaded shaft assembly abuts in the use of the device. In use, the self-tapping screw is power driven in self-tapping relation through an opening punched in the dented area to be repaired, whereupon the outer end of the cylindrical abutment member will be moved into abutting engagement with the sheet metal being repaired in surrounding relation with respect to the punched opening to pull the dented sheet metal outwardly in the direction of the abutment member.
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