Title:
MANUFACTURING METHOD OF CLOSED VESSEL AND LID
Document Type and Number:
Japanese Patent JP2023020751
Kind Code:
A
Abstract:
To provide a manufacturing method of a closed vessel and a lid that restrict the occurrence of weld lines, air bubbles, and whitening.SOLUTION: A closed vessel 1 includes a vessel body 2 and a lid 3. The lid 3 includes: a lid body 5 that has a top wall 5a and a peripheral wall 5b; and a sealing part 6 that is formed on the back side of the top wall 5a and seals a mouth part 2a of the vessel body 2. The sealing part 6 is formed of softer material than the lid body 5 and is formed in an annular shape that continues across the full circumference on the back surface of the top wall 5a. The back side 5f of the top wall 5a has a recessed part 8 that recesses in the axial direction at the position facing a gate position G of the sealing part 6 in the radial direction across the gate position G and the axial line O.SELECTED DRAWING: Figure 4
Inventors:
UCHIDA KEISUKE
NAKAO YUKI
NAKAO YUKI
Application Number:
JP2021126295A
Publication Date:
February 09, 2023
Filing Date:
July 30, 2021
Export Citation:
Assignee:
YOSHINO KOGYOSHO CO LTD
International Classes:
B65D53/00; A45D33/00; B65D43/16
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Kenichiro Kataoka
Mitsutsugu Sugimura
Kenichiro Kataoka
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