CONSTANT AMOUNT DISCHARGE STRUCTURE OF NOZZLE HEAD DESCENDING TYPE CONTAINER

PROBLEM TO BE SOLVED: To provide the constant amount discharge structure of a nozzle head descending type container for discharging a constant amount of a content. SOLUTION: This constant amount discharge structure comprises a container for storing a content, a seal member for sealing the bottom face of the container, a nozzle head with a nozzle hole built in the top of the container, a piston member whose elastic rib is built in the inside wall of the container, a piston receiving member having a tubular cylinder and on which the piston member is fixed, a center shaft having a liquid path and whose top end is inserted in the nozzle head, and a spring for energizing the nozzle head. The constant amount discharge structure includes a center shaft guide cylinder which is integrally formed in the center of the piston member and the bottom of the center shaft is inserted therein, a liquid collecting chamber formed at the bottom of the piston receiving member and is provided with a liquid flow-in hole, a recessed groove formed at the bottom of the center shaft, and a constant amount discharge means with an elastic pump member for sucking and discharging liquid in the liquid collecting chamber being fitted in the groove. COPYRIGHT: (C)2005,JPO&NCIPI