Lateral sealing machine and filling and packaging apparatus

Problem to be solved: To provide a lateral sealing machine and a filling and packaging device capable of sufficiently removing a material to be filled from a fusion region of a cylindrical body T even if the material to be filled is a liquid body, and capable of highly accurately performing fusion even if a wider fusion region is set. Solution: When a forward drive force is applied, a pressure arm 75, a first support plate 71, and a first head portion 61 swing to the downstream side in the longitudinal direction via a universal joint 74 (74). Further, since the fitting-in part 79 is internally fitted to the claw part 80 a, force to the downstream side is energized to the second head part 62 in conjunction with the rocking of the first head part 61, the first roller part 66 of the first head part 61 is rotated...