Title:
口栓
Document Type and Number:
Japanese Patent JP6950146
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a plug which has high productivity and high sealability, hardly causes uncoupling of an elastic body, and allows an injection needle to be penetrated stably.SOLUTION: A plug comprises a plug body 2, a lid body 4, and an elastic body 3 which is stored in the plug body and can be pierced by an injection needle. The plug body includes a boat-shaped fusion part 21 fused to a film container, an elastic body storing part 23 for storing the elastic body, a flange 22, and a liquid introducing passage 24 communicating with the boat-shaped fusion part, the flange, and the elastic body storing part. The lid body includes a lid top plate part 41 and a lid side plate 42 and has a fitting part fitting to the plug body at a lid side plate lower end and a piercing window 411 at the lid top plate part. A diameter of a cylindrical side wall inner surface passing through a vertex of a contact surface of the elastic body storing part is smaller than a diameter of a columnar part passing through a vertex of a contact surface of the elastic body, and a rough-surfaced contact surface is provided at least on one of an elastic body storing part side wall inner surface of the plug body and an elastic body contact surface.SELECTED DRAWING: Figure 5
Inventors:
Takuji Harada
Application Number:
JP2016035489A
Publication Date:
October 13, 2021
Filing Date:
February 26, 2016
Export Citation:
Assignee:
Toppan Printing Co., Ltd.
International Classes:
B65D75/58; B65D39/04; B65D45/02
Domestic Patent References:
| JP2005073839A | ||||
| JP2003169840A | ||||
| JP60171438U | ||||
| JP2002002766A |
Foreign References:
| WO2013094611A1 |