| 摘要 |
<p>It is intended to mount and remove the heat seal bar 2 without difficulty. A receiving recess 7 formed in the heat seal bar 2 while an insert 8 is received in and fixed to the receiving recess 7. A tension pin 16 is supported by the heater unit 1, inserted into the adjacent recess 11 and then inserted into the axial groove 9 through the axial opening 10. An actuator 19 is provided at the heater unit 1, the tension pin 16 being pulled and moved axially thereof by the actuator 19 so that the head 17 should be engaged with the inward protrusion 18. The tension pin 16 and the insert 8 cooperate with each other to mount the heat seal bar 2 on the heater unit 1.</p> |
