| 摘要 |
[Problem] To make it possible to simplify an end sealer mechanism and increase the strength of the mechanism, as well as to incorporate a peripheral device which accompanies three-side seal film packaging to save space in an end sealer region. [Solution] A gear train (27) is provided comprising a motive gear (21) and a pair of driven gears (23, 25) meshed with a top side and bottom side, respectively, of the motive gear and disposed in a straight line in the vertical direction, linking shafts (29a, 29b) of the pair of driven gears are joined to a bottom end sealer (30b) via a double-housing base (37) which is rotationally driven in phase by first and second cranks (31a-31b, 35a-35b), and the linking shaft (29b) of the bottom-side driven gear is joined to a top end sealer (30a) by a top end sealer base (45) via connecting rods (44a-44b) which are rotationally driven in opposite phase by third cranks (43a-43b) linked to the second cranks. |
