Protective cover sheet

The protective cover sheet with alternating creases and cut-outs addresses the issue of crack progression, ensuring durability by interrupting cracks and dispersing force, thus preventing breakage.

JP2026091105APending Publication Date: 2026-06-03DNP TAMUTA PLASTIC CO LTD

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
DNP TAMUTA PLASTIC CO LTD
Filing Date
2024-11-22
Publication Date
2026-06-03

AI Technical Summary

Technical Problem

Conventional protective cover sheets for seedlings are prone to cracking and breaking due to thinning at folding notch grooves, with cracks progressing continuously if a crack occurs.

Method used

The protective cover sheet features alternating creases and straight or curved cut-out sections to interrupt crack progression, dispersing applied force and preventing breakage.

Benefits of technology

The design effectively prevents the entire sheet from breaking by interrupting cracks with cut-outs and dispersing applied force, enhancing durability.

✦ Generated by Eureka AI based on patent content.

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  • Figure 2026091105000001_ABST
    Figure 2026091105000001_ABST
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Abstract

The present invention provides a protective cover sheet that minimizes the progression of cracks even if they occur, thereby preventing the entire sheet from breaking. [Solution] In a protective cover sheet that is assembled by folding along a folding section 14, the folding section 14 is provided in a straight line with alternating fold lines 14a (perforations) to make the sheet 10 easier to fold and oval-shaped cutouts 14b. Even if a crack occurs in a part of the folding section 14, the crack is interrupted by the cutouts 14b, preventing the entire sheet from breaking.
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