Title:
WELDING TORCH
Document Type and Number:
WIPO Patent Application WO/2018/074203
Kind Code:
A1
Abstract:
Provided is a welding torch with which leakage of a shielding gas can be suppressed while avoiding an increase in size.
This welding torch is provided with: a wire feed tube including a wire feed passage through which a welding wire is fed; a contact tip attached to an end portion of the wire feed tube; and a tubular nozzle which is provided around the contact tip and through which a shielding gas flows. Separately from the wire feed passage, the wire feed tube also includes a gas supply passage which supplies the shielding gas to the nozzle.
Inventors:
TAMAKI RYOJI (JP)
MIYAHARA HISAO (JP)
MIYAHARA HISAO (JP)
Application Number:
PCT/JP2017/035780
Publication Date:
April 26, 2018
Filing Date:
October 02, 2017
Export Citation:
Assignee:
DAIHEN CORP (JP)
International Classes:
B23K9/29
Foreign References:
| JPH03291169A | 1991-12-20 | |||
| JPS5132834Y1 | 1976-08-16 | |||
| JPS5024720U | 1975-03-20 |
Attorney, Agent or Firm:
KOHNO, Hideto et al. (JP)
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