| 摘要 |
PROBLEM TO BE SOLVED: To provide a welding unit allowing a welding member to exert a fixed pushing force to a welded member by a simple structure.SOLUTION: The welding unit includes the welding member 31 heat welding the welded member 101, a support member 32 supporting the welding member 31 via a resilient member 36, a sensing means 37 sensing contact of the welding member 31 with the welded member 101, a driving means 34 moving the support member 32 so as to move the welding member 31 in a direction for contacting with/separating from the welded member 101, and a control means controlling the operation of the driving means. When the sensing means 37 senses contact of the welding member 31 with the welded member 101, the control means controls the driving means 34 to move the support member 32 toward the welded member 101 by a predetermined distance. |
