Title:
METAL TUBE CONTAINER OPENING CAP AND TUBE PRODUCT
Document Type and Number:
Japanese Patent JP2023084359
Kind Code:
A
Abstract:
To provide a metal tube container opening cap, which mitigates changes in opening resistance of a metal closure film in the metal tube container and opens the closure film to a specified opening area, and a tube product.SOLUTION: A metal tube container opening cap 10 has a protrusion 12 for opening a metal closure film 24 provided at a mouth part 22 of a metal tube container 20. The protrusion 12 protrudes axially from one side surface of a top wall 11. The protrusion 12 has a cylindrical surface 121 axially extending from one side surface of the top wall and a conical surface 122 tapering from the tip of the cylindrical surface 121 . The conical surface 122 has a taper angle θ of 90° or less, and when the axial length of the cylindrical surface 121 is L, the radius of the cylindrical surface 121 is r, and the axial distance from the upper surface of the mouth part 22 to the closure film 24 is d, the following formula (1) is fulfilled. L-d≥0.6×r ...(1)SELECTED DRAWING: Figure 1
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Inventors:
TOKURA TOSHIKO
OGAWA YUKIHIRO
OGAWA YUKIHIRO
Application Number:
JP2021198494A
Publication Date:
June 19, 2023
Filing Date:
December 07, 2021
Export Citation:
Assignee:
TAISEI KAKO CO
International Classes:
B65D35/44
Attorney, Agent or Firm:
Taro Murakami
Hidetoshi Ueba
Kenji Tanaka
Hidetoshi Ueba
Kenji Tanaka
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