| 摘要 |
PROBLEM TO BE SOLVED: To suppress leakage failure in conductive grease.SOLUTION: A housing holding member 320 holds seam welding rollers 200, and comprises: housings 310 rotatably holding shafts of the respective seam welding rollers 200; and a roller cooling mechanism 700 cooling the seam welding rollers 200. Each of the housings 310 is formed into a cylindrical shape with a hollow portion acting as an insertion hole into which the shaft of each seam welding roller 200 is inserted. Furthermore, a liquid is filled into a gap between the insertion hole and the shaft. The roller cooling mechanism 700 includes a pump for supplying refrigerant to the housings 310. The roller cooling mechanism 700 cools the seam welding rollers 200 held in the respective housings 310 by cooling the housings 310. |
