| 摘要 |
PROBLEM TO BE SOLVED: To propose a foam discharger capable of exhibiting an excellent valve function as a result of it, by maximally checking deformation of a valve member, by preventing swelling of the valve member for constituting an outside air introduction valve, even if there is infiltration of liquid.SOLUTION: A foam discharger is provided for foaming and discharging a foam via a foaming member by merging liquid from the inside of a liquid cylinder and air from the inside of an air cylinder 20 by the vertical movement of an operation member, and is constituted by connecting a cylindrical member 45 for fitting an air piston C3 to the system outer periphery so that the vertical movement of a predetermined width becomes possible and a sliding part 47 slidably fitted to the air cylinder inner periphery, by a partition wall 46, and is provided with a swelling preventive mechanism for preventing the swelling of an installation cylinder by locking an installation cylinder outer surface in a state of being capable of ventilation between an intake port and an outside air introduction valve V3, by openably-closably blocking up the intake port 49 provided in the partition wall, by the outside air introduction valve V3 constituted of an annular outside air introduction valve element 56 projected from the installation cylinder 55 fitted to the cylindrical member outer periphery and a valve seat 48 for the outside air introduction valve provided in a partition wall lower part. |
