| 摘要 |
To provide a liquid substance advancing container that is free from problems in advancing operation of a piston (18), can be increased in the amount of liquid content in a barrel cylinder and can be configured in low cost by an easily machined die with a lower number parts. The liquid substance advancing container is constructed such that the piston (18) is formed of a sealing part (32) in a front part of the piston that comes in sliding contact with an inner wall of a reservoir of the barrel body and a bar member (34) in the rear part of the piston that has a threaded section on the inner or outer periphery, is movable in a axial direction and is restrained form moving with respect to the rotational direction, a front bar-like part (36) extended forward from the handle is formed with a threaded section that is directly or indirectly screw-fitted to the threaded section of the bar member (34) in the rear part of the piston, and, as the handle is rotated relative to the barrel body (10), the piston (18) advances and then after full advance of the piston the front bar-like part (36) can extend and retract by multiple stages. |
