To provide an ejecting inside plug with a slit valve, which can prevent such a bubble entrainment reliably as is feared to occur at a continuous discharge time.
An ejecting inside plug with a slit valve, comprises: an inside plug body 30 including a main cylinder portion 35 erected from a base portion 31 liquid-tightly fitted in a neck portion 13 of a container 10, a top wall 36 extended transversely from the upper end of the main cylinder portion 35, and an ejecting cylinder portion 38 erected from the circumferential edge of an ejection hole 37 poured in the central portion of the top wall 36; and a slit valve 40 having a circumferential edge portion 41a of an elastic wall 41 liquid-tightly attached in a horizontal arrangement to a circumferential edge portion 36a of the back face of the top wall 36, and having a slit 43 formed in a central portion 41b of the elastic wall 41. A recess S communicating with the ejection hole 37 and forming a space between itself and the central portion 41b of the elastic wall 41. The recess S has a taper face 39 formed to expand radially, gradually from the ejection hole 37 to the circumferential edge portion 41a of the elastic wall 41.
KUWABARA KAZUHITO
| JP2007119040A | 2007-05-17 | |||
| JPH08282704A | 1996-10-29 | |||
| JPH0211058U | 1990-01-24 |
Yoshihiro Uemura
Tatsuya Tanaka