| 摘要 |
PROBLEM TO BE SOLVED: To surely prevent the dripping of a liquid form a nozzle of a sealing gun during a liquid discharge stoppage time. SOLUTION: During the liquid discharge stoppage time of the sealing gun 3, the nozzle 6 is inserted into a nozzle cap 9 having a double cylinder structure to form the inside space R of the nozzle cap 9 into a hermetically sealed space. The inside pressure of the nozzle cap is increased by relatively moving an inner cylinder 10 and an outer cylinder 11 by a fixed stroke S1 while the inside space R is kept to be the hermetically sealed space. The dripping of a sealing agent from a discharge port 7 is prevented by applying the increased inside pressure of the nozzle cap to the discharge port 7 of the nozzle 6. COPYRIGHT: (C)2005,JPO&NCIPI
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