Composite container

JP2026095920APending Publication Date: 2026-06-12TOPPAN HOLDINGS INC
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
TOPPAN HOLDINGS INC
Filing Date
2024-12-02
Publication Date
2026-06-12

AI Technical Summary

Benefits of technology

【0014】 本構成の複合容器によれば、上方視において、補強リブは、環状骨格部の中心、及び環状骨格部と側面骨格部との連接位置を結ぶ直線を基準として、環状骨格部の中心から±1~5°の角度領域に設けられるため、補強リブを設けたことによる樹脂量の増加を抑えつつ、特に変形しやすい環状骨格部と側面骨格部との連接位置近傍を効果的に補強することができる。

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Abstract

To provide a composite container that reduces the amount of resin used while offering excellent airtightness when the lid is closed. [Solution] A bottomed cylindrical composite container 1 made primarily of paper and having an opening 5 on its top surface comprises a resin frame 10 having an annular frame 20 that forms the opening 5 and a side frame 30 connected to the annular frame 20, a paper side 50 joined to the annular frame 20 and the side frame 30, and reinforcing ribs 23 that reinforce the annular frame 20.
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Claims

1. A bottomed cylindrical composite container made primarily of paper, with an opening on the top surface, A resin frame having an annular frame portion that forms the opening, and a side frame portion connected to the annular frame portion, The annular skeletal portion and the side skeletal portion are joined to the paper side portion, Reinforcing ribs that reinforce the annular skeletal portion and A composite container equipped with [specific features / features].

2. The aforementioned annular skeletal portion has an annular lip that protrudes outward, The composite container according to claim 1, wherein the reinforcing rib is provided on the lip.

3. The composite container according to claim 1, wherein the reinforcing ribs are provided near the connection point between the annular skeletal portion and the lateral skeletal portion.

4. The composite container according to claim 1, wherein, when viewed from above, the reinforcing ribs are provided in an angular region of ±1 to 5° from the center of the annular skeletal structure, with reference to a straight line connecting the center of the annular skeletal structure and the connection point between the annular skeletal structure and the side skeletal structure.

5. A composite container according to any one of claims 1 to 4, wherein the paper conversion rate is 50% or more.