| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to realize the desired simple and less costly hermetic sealing of a hollow chamber in the housing of a pistol containing a liquid by forming a guide means for guiding the slide of a nozzle needle interlocked with a trigger lever on a sealing means provided on the through part of a wall which sections the hollow chamber. SOLUTION: A pistol 11 used for generating a bubble has a nozzle pipe 12, a trigger lever 13 and a nozzle needle 14. A force is transmitted to a stepped part 20 through a connecting device 18 comprising a lever and fork-like part by the pulling operation of the trigger lever 13. Consequently, the nozzle needle 14 separates to the right from its closing position and a pressurized liquid contained in a hollow chamber 17 is ejected from an outflow aperture 35. The inner end side of the nozzle needle 14 faces the connecting device 18 running through a hole in a wall part 19 which sections the hollow chamber 17. In this case, a ring-like seal 22 which serves as a guide means is arranged in the hole of the wall part 19, and is caused to guide the nozzle needle 14, in a liquid-tight and freely slidable manner, on the seal surface. |
