| 摘要 |
PROBLEM TO BE SOLVED: To provide a welding torch capable of suppressing any increase in the temperature of a surface of a handle by an air-cooling system. SOLUTION: A one-wire type power cable 8 is connected to the base end of a torch body holder 37, a torch body 16 is connected to the tip end thereof, a handle 52 is constituted of right and left outer handle members 31, 34, an inner handle member 32 is provided inside any one of the outer handle member 31, and a shield gas distribution chamber 33 is formed of the outer handle member 31 and the inner handle member 32. Shield gas fed from the one-wire type power cable 8 to the torch body holder 37 flows out of the flow-out hole 38 of the torch body holder, passes through the flow-out passage 39 of the inner handle member, flows into the shield gas distribution chamber 33, passes through the flow-in passage 43 of the inner handle member, flows into the torch body holder 37 from the flow-in hole 42 of the torch body holder, and is fed to the torch body 16. COPYRIGHT: (C)2011,JPO&INPIT |
