| 摘要 |
PROBLEM TO BE SOLVED: To enable a constant quantity of a liquid to be ejected from a rigid container such as a PET bottle. SOLUTION: In a constant quantity ejecting plug 2, a flow path forming cylinder 6 is made to stand from the upper end of an attaching cylinder 4 via an inward flange-like wall 5, a partition wall 7 is longitudinally provided on the internal face of the flow path forming cylinder 6 to section the cylinder 6 into a liquid flow-out cylinder part 6a and an air intake cylinder part 6b, while the air intake cylinder part 6b is formed to extend downward. Further, the plug 2 is formed of a plug body 3 with a vent hole 9 punched on the rear of an outward flange-like wall 8 attached to an intermediate part of the flow path forming cylinder 6 and a weighing member 13 with the lower end of a weighing cylinder 15 with a top which stands above the flow path forming cylinder 6 fixed to the upper face of the outer periphery of the outward flange- like wall 8 and also having a nozzle 17 protruding forward from the lower part of the front of the weighing cylinder. |
