Sheet metal repair jig

Abstract

A sheet metal repair jig for smoothening a sheet metal by heating and cooling a part of the sheet metal to be repaired includes at least one roller having a cylindrical shape, the roller being made of an electrically-conductive material and serving as a heating means; a roller support shaft supporting the roller pivotably about an axis of rotation of the cylindrical shape; a support supporting the roller support shaft and having an electrode electrically connected to the roller; and a cooling channel serving as an air channel for discharging cooling air to a contact surface between the part of the sheet metal to be repaired and the roller. The cooling channel is formed inside the roller support shaft and has a discharge port that discharges the cooling air to the contact surface between the part of the sheet metal to be repaired and the roller.

1 . A sheet metal repair jig for smoothening a sheet metal by heating and cooling a part of the sheet metal to be repaired, comprising:
 at least one roller having a cylindrical shape, the roller being made of an electrically-conductive material and serving as a heating means;   a roller support shaft supporting the roller pivotably about an axis of rotation of the cylindrical shape;   a support supporting the roller support shaft and having an electrode electrically connected to the roller; and   a cooling channel serving as an air channel for discharging cooling air to a contact surface between the part of the sheet metal to be repaired and the roller,   wherein the cooling channel is formed inside the roller support shaft and has a discharge port that discharges the cooling air to the contact surface between the part of the sheet metal to be repaired and the roller.   
     
     
         2 . The sheet metal repair jig according to  claim 1 , wherein the sheet metal repair jig includes a plurality of rollers arranged along the axis of rotation, and the discharge port is formed in a gap between the plurality of rollers. 
     
     
         3 . The sheet metal repair jig according to  claim 2 , wherein the sheet metal repair jig includes two rollers of the same size and shape arranged along the axis of rotation, and the discharge port is formed in a gap between the two rollers.