Title:
THERMALLY INSULATED DOUBLE CONTAINER AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2024/079969
Kind Code:
A1
Abstract:
In a thermally insulated double container 1: a thermal insulation layer 4 is provided between a metal inner container 2 substantially in the shape of a bottomed cylinder and a metal outer container 3 substantially in the shape of a bottomed cylinder; a folded back portion 331 which is folded back to an inner side, and an outer container tapered portion 332 extending toward a bottom side from a lower edge of the folded back portion 331 so as to have a gradually decreasing diameter are formed in a mouth portion 33 of the outer container 3; an inner container tapered portion 231 extending toward a mouth side of the inner container 2 so as to have a gradually increasing diameter is formed in a tip edge portion of a mouth portion 23 of the inner container 2; and a tip edge 2312 of the inner container tapered portion 231 is brought into contact with an inner inclined surface 3321 of the outer container tapered portion 332 and is circumferentially welded to the outer container tapered portion 332. This enables the outer container and the inner container to be easily positioned in correct positions, and enables a simplification of manufacturing equipment and a reduction in manufacturing cost.
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Inventors:
MOTOOKA SHINYA (JP)
NOMURA TETSUAKI (JP)
NOMURA TETSUAKI (JP)
Application Number:
PCT/JP2023/028800
Publication Date:
April 18, 2024
Filing Date:
August 07, 2023
Export Citation:
Assignee:
SANKEI GIKEN KOGYO CO LTD (JP)
International Classes:
A47J41/02; B65D81/38
Foreign References:
| JP2001238804A | 2001-09-04 | |||
| CN211722678U | 2020-10-23 | |||
| JP6978296B2 | 2021-12-08 |
Attorney, Agent or Firm:
MOTOI Shigeyuki (JP)
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