| 摘要 |
PROBLEM TO BE SOLVED: To heat-seal a specific section of an enveloping film without excessively heating a storage element in a heat sealing device for heat-sealing the enveloping film covering the storage element.SOLUTION: A heat sealing device 1 for heat-sealing a side surface of a workpiece W includes: a stage member 2 on which the workpiece is placed; an extrusion member 3 that is provided above the stage member and can extrude and secure the workpiece placed on the stage member by relative descent of the extrusion member 3 with respect to the stage member; a lifting means 15 for making the extrusion member relatively lift and move with respect to the stage member; and heating means 16, 17, 18, 19, 25, 26 for heating the side surface of the workpiece secured by the stage member and the extrusion member. |
