| 摘要 |
PROBLEM TO BE SOLVED: To provide a seal device capable of stabilizing seal pressure by reducing a pressure difference between at the start of sealing and the end of sealing.SOLUTION: A heat sealer 100 comprises: a pressure-bonding part 121 and a receiving part 110 which sandwich a seal part; a pressure-bonding lever 120 having the pressure-bonding part 121 at the tip; a direct-acting solenoid for driving the pressure-bonding lever 120 so as to sandwich the seal part between the pressure-bonding part 121 and the receiving part 110 by moving the pressure-bonding part from an upper side to a lower side; a connection part moving in conjunction with a movable part of the direct-acting solenoid; a pressure adjustment nut 130 provided at one end part of the connection part that extends through a through part formed in the pressure-bonding lever 120; a pressure adjustment elastic body 140 pressed to the pressure-bonding lever side by a pressure adjustment knob part 130; and a lateral expansion restriction part for restricting lateral expansion of the pressure adjustment elastic body 140.SELECTED DRAWING: Figure 1 |
