Electrical conduction mechanism

A sheet metal puller for repairing dents in a sheet-metal face comprising:

• a first manipulating member having a shaft with a bit on a distant end portion of the shaft and a handle at another end of the shaft;
• a second manipulating member connected to the first manipulating member for supplying force to the bit on the first manipulating member, wherein the second manipulating members has a pair of grips that can be manually forced towards each other to provide movement of the bit;
• and
• an electrical power cord is connected to one of the pair of grips to supply electrical power to the bit on the first manipulating member to enable welding the bit on a sheet-metal face;
• wherein the first manipulating member includes an electrical-conduction portion main body which is formed with a conductive member, having a first through-hole for receiving the shaft, and in which a second through-hole communicating with the first through-hole is formed in a direction perpendicular to a direction in which the first through-hole is formed;
• and
• an electrical-conduction element is disposed in the second through-hole, wherein the electrical-conduction element is configured to include an electrical-conduction chip abutting on the shaft, and a coil spring biasing the electrical-conduction chip toward the shaft, so that current is supplied to the shaft through the electrical-conduction chip to conduct electricity to the bit.

A sheet-metal puller having an electrical conduction mechanism which conducts electricity to a bit of the sheet-metal puller, comprising:

• a shaft;
• a first manipulating member provided with the bit which is disposed on a distal end portion of the shaft and which is weldable on a sheet-metal face;
• a second manipulating member which is provided with a supporting portion for supporting the first manipulating member and which can move the first manipulating member manually;
• a leg body for supporting the second manipulating member;
• an electrical-conduction portion main body which is formed with a conductive member having a first through-hole to permit the shaft to move therein, and a second through-hole communicating with the first through-hole in a direction perpendicular to a direction in which said first through-hole is formed;
• and
• an electrical-conduction element disposed in the second through-hole, wherein the electrical-conduction element is configured to include an electrical-conduction chip abutting on the shaft, a coil spring biasing the electrical-conduction chip toward the shaft, and a spacer formed with an insulator which is interposed between the electrical-conduction chip and the coil spring to enable the electrical-conduction chip and the coil spring to be in a non-conductive state, so that current is supplied to the shaft through the electrical-conduction chip to conduct electricity to the bit.