Title:
TIG WELDING TORCH
Document Type and Number:
Japanese Patent JP3767203
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enable a tig welding torch to weld a narrow gap by making an electrode structural body in a flat cross section shape so that no welding wire passes between the electrodes and the width dimension can be made small.
SOLUTION: A slender flat insulation plate 22 is held by two flat electrodes 23 from both right and left sides, a welding wire 14 is passed to the backward position deviated from the position of the insulation plate 22 between the electrodes to constitute an electrode structural body 24 made to a totally flat cross section shape. The cross section shape of the electrodes 23 is made to an elliptical, two-split elliptical or polygonal shape. The electrode structural body 24 is assembled with the center part of a torch main body through a collet 25 made of peripherally four-split structure comprising right and left collet bodies 25a and forward and rear spacer bodies 25b and projected downward through a gas cup.
Inventors:
Minoru Yamada
Minoru Tagami
Kiyofumi Ishikawa
Minoru Tagami
Kiyofumi Ishikawa
Application Number:
JP26853998A
Publication Date:
April 19, 2006
Filing Date:
September 22, 1998
Export Citation:
Assignee:
Ishikawajima Harima Heavy Industries Co., Ltd.
International Classes:
B23K9/167; B23K9/29; B23K35/02; (IPC1-7): B23K9/29; B23K9/167; B23K35/02
Domestic Patent References:
| JP9277055A | ||||
| JP7227674A | ||||
| JP62045474A |
Attorney, Agent or Firm:
Mitsuo Sakamoto