Yarn-Like Adhesive Body for Bent-Shape Bonding Without Punching Waste
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Solution Overview
Problem
The method of punching double-sided adhesive films to create shaped adhesive bodies results in a large discarded portion, increasing environmental load, and is not suitable for diverse or complex bonding region shapes, particularly in electronic devices where narrow and bent shapes are required.
Innovation Solution
A method of producing a bonded body using a yarn-like adhesive body that can be bent to match the shape of the bonding region, allowing members to bond together with a high adhesive force, reducing environmental impact by eliminating discarded portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If double-sided adhesive film is punched to create shaped adhesive bodies, then diverse bonding region shapes can be achieved, but a large discarded portion is generated increasing environmental load
Solution Approach 1:
The adhesive film is divided into linear adhesive bodies (strips) that can be selectively placed and arranged to form diverse bonding region shapes. This segmentation allows the adhesive material to be used efficiently without punching waste, as the linear bodies can be positioned precisely along bonding paths.
Solution Approach 2:
The invention transitions from two-dimensional punched adhesive shapes to one-dimensional linear adhesive bodies that can be arranged in multiple dimensions to create complex bonding patterns. This dimensional change eliminates the need for punching while achieving diverse bonding region configurations.
2Length of moving object
If double-sided adhesive tape width is narrowed to meet narrow bonding region requirements, then bonding region width is reduced, but front and back sides are likely to be twisted and handleability is deteriorated
Solution Approach 1:
The invention solves the narrow width problem by transitioning from wide tape to thin linear adhesive bodies that maintain structural integrity. The linear form factor allows the adhesive to be applied in narrow bonding regions without the twisting issues that plague narrow wide tapes, as the thin profile is inherently more flexible and stable.
3Shape
If double-sided adhesive tape is used for bent shapes, then bonding can be achieved, but the adhesive tape is not suitable for sticking bent shapes due to twisting and handleability deterioration
Solution Approach 1:
The invention uses thin linear adhesive bodies that can be easily conform ed to bent surfaces. These thin adhesive strips can wrap around and adhere to curved surfaces without the twisting and handleability problems associated with conventional adhesive tapes, providing excellent suitability for bent shape bonding applications.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method effectively addresses the challenge of diverse bonding region shapes with a low environmental impact by using a yarn-like adhesive body that can be bent to fit complex shapes, while maintaining a high adhesive force suitable for electronic devices.
Implementation Method 1
a yarn-like adhesive body, wherein at least a part of a bonding region, which is a portion where the members are allowed to bond to each other, has a bent shape, and the members are allowed to bond to each other with the yarn-like adhesive body bent according to a shape of the bonding region
Data Source
AI summary
The present invention relates to a method of producing a bonded body in which members are allowed to bond to each other with a yarn-like adhesive body, and at least a part of a bonding region, which is a portion where members are allowed to bond to each other, has a bent shape, and the members are allowed to bond to each other with the yarn-like adhesive body bent according to a shape of the bonding region.