| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealer for sealing one of ends of a tube for a tube container with a hot blast for forming an end seal wherein turbulence of the hot blast in a nozzle for ejecting the hot blast is prevented, thereby uniformly heating the tube seal so as to prevent seal strength from being uneven and a resin from bulging when the tube is cut. SOLUTION: One of ends of a pipe 1 forming a nozzle 10 is an inlet port 7 for a hot blast, while the other end is an ejection end 2. Ejection ports 5 of the hot blast surrounding a peripheral face of the injection end 2 are formed laterally symmetrical with respect to a symmetric plane M, while the ejection end 2 is covered by a straightening face 21 including a line connecting between respective symmetric positions of the laterally symmetric ejection ports 5 or a line protruding from the above line toward the inlet port.
|
