Title:
CAP FOR DOUBLE CONTAINER
Document Type and Number:
Japanese Patent JP2015160668
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a cap for a double container which is provided with a suck-back function and can extract a content fluid stably without disturbance.SOLUTION: A cap 1 for a double container comprises: a cap body 10 having an extraction cylinder 14; an inside plug 20 having a partition wall 21 located between the extraction cylinder 14 and an inner layer body 3, and comprising communication ports 23 for letting a content fluid pass and a cylindrical wall 22 which are provided in the partition wall 21; a valve body 43 which opens the communication port 23 by the pressure rise in the inner layer body 3; and a movable valve body 30 provided movably in the cylindrical wall 22. In the inside plug 20, the cylindrical wall 22 is arranged at the central part of the partition wall 21, and a plurality of communication ports 23 are arranged on the outer peripheral side than the cylindrical wall 22. The total opening area of the communication ports 23 is larger than the total opening area of the inner layer body side opening in the cylindrical wall 22.
Inventors:
HAYAKAWA SHIGERU
Application Number:
JP2014039173A
Publication Date:
September 07, 2015
Filing Date:
February 28, 2014
Export Citation:
Assignee:
YOSHINO KOGYOSHO CO LTD
International Classes:
B65D47/40; B65D47/20; B65D47/32; B65D51/16; B65D77/04; B65D77/06; B65D83/00
Domestic Patent References:
| JP2013151316A | 2013-08-08 | |||
| JPS6065241U | 1985-05-09 | |||
| JP2013244995A | 2013-12-09 |
Foreign References:
| WO1995013220A1 | 1995-05-18 |
Attorney, Agent or Firm:
Kenji Sugimura
Yoshihiro Uemura
Yoshihiro Uemura