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.
Smart Images

Figure 2026091105000001_ABST
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.
Need to check novelty before this filing date? Find Prior Art