| 摘要 |
PROBLEM TO BE SOLVED: To provide a discharge device which can suppress the remaining of a content in a nozzle hole.SOLUTION: A discharge device includes: a stem 10 which has a pump 1; and a depressing head 2 which is arranged at the upper end of the stem 10, and in which a nozzle hole 21 is formed. The pump 1 includes: a piston 50 for liquid which is connected with the stem 10; a cylinder 16 for liquid in which the piston 50 for liquid is vertically slidably housed; a piston 40 for air which is connected with the stem 10; a cylinder 15 for air in which the piston 40 for air is vertically slidably housed; and a gas-liquid mixing chamber 3 in which liquid from the cylinder 16 for liquid and air from the cylinder 15 for air are mixed. The piston 40 for air includes an internal cylinder 42 into which the stem 10 is inserted. On the stem 10, a flange-like contact section 11 which comes into contact with the lower end of the internal cylinder 42 from the lower side is formed. Between the internal cylinder 42 and the stem 10, a communicating passage which communicates with the gas-liquid mixing chamber 3 is formed. At the lower end of the internal cylinder 42, an opening 70 which makes the communicating passage communicate with the inside of the cylinder 15 for air is formed. |
