To provide a backing device that facilitates flux application to the rear side of a groove line where members to be welded are allowed to abut on each other and that is not upsized as a whole even being provided with two backing parts corresponding to different backing methods and low in equipment cost, and to provide a one-side welding machine which is not upsized as a whole and is inexpensive in equipment cost even in the one-side welding machine provided with the backing device.
The backing device 10 is provided with a backing part 11 for applying flux to the rear side of a groove line, a backing frame 17, a rack frame 21, and a flux recovery means 22. The backing part 11 includes a flux holding section, a support plate, one air hose, and an elevation guide 14 having elevation guide members which are arranged with a prescribed space apart longitudinally on both sides in the width direction of the air hose. The elevation guide 14 is formed in a manner that one end of each elevation guide member is fixed on the support plate and that each elevation guide member is inserted through a guide hole formed in the backing frame 17 and guided.
| JPS51148642A | 1976-12-21 | |||
| JPS4838251A | 1973-06-05 | |||
| JP2006175447A | 2006-07-06 | |||
| JPH04367395A | 1992-12-18 | |||
| JP2005319512A | 2005-11-17 |
Etsuo Tada
Tetsuo Tomita
Next Patent: DEVICE FOR PRODUCING POWDER COMPOSED OF BRAZING FILLER METAL COMPOSITION, AND METHOD FOR PRODUCING P...