To provide a seam welding method and its device capable of carrying a finished product made of a plurality of blanks out of a welding area to other area even if various members and implements necessary for the welding area. where a plurality of blanks are seam-welded, are arranged.
A waiting area B is provided adjacent to a welding area A. A stacking work that the mutual ends of blanks W1, W2 are superposed on each other and a provitionally clamping work of these blanks W1, W2 are carried out on a transfer bed 70 reciprocally moving in the area. The blanks W1, W2 are transferred to the area A by the horizontal movement, of the transfer bed 70 and after the blanks W1, W2 have been substantially clamled, these are welded by a seam welding machine 130, thereafter, a finished product composed of the blanks W1, W2 is turned back to the area B by the horizontal return of the transfer bed 70.
INOUE MASAYUKI
YAMAGUCHI SHUNJI
YAMASHITA YORIHIRO
