| 摘要 |
PROBLEM TO BE SOLVED: To provide a trigger type liquid sprayer not causing liquid spill even when lateral force is added to a trigger.SOLUTION: A pump 18 includes: a cylinder 21 which has an inner cylindrical wall 19 and an external cylinder wall 20; a piston 23 whose front side end part is engaged with a trigger; a front seal piece 24 and a rear seal piece 25 which fluid-tightly contact the inner peripheral surface of the external cylinder wall 20; an outer periphery side support part 26 which is integrally provided on the piston 23, and slidably contact the inner peripheral surface of the external cylinder wall 20; and an inner periphery side support part 27 which is integrally provided on at least one of the outer peripheral surface of the inner cylindrical wall 19 and the inner peripheral surface of the piston 23, and slidably contacts the other. The outer periphery side support part 26 has an annular thickness reduction part 28 with a gap between the outer peripheral surface of the piston 23.SELECTED DRAWING: Figure 2 |
