Stepped Protective Cover Member for Reliable Removal
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Solution Overview
Problem
Conventional protective cover members are not designed for easy removal, leading to potential damage to objects during production or mounting, as they can break off or be improperly held, causing damage to the object or the cover member itself.
Innovation Solution
A protective cover member with a laminate structure including a protective membrane, a substrate film, and a first adhesive layer, featuring a stepped outer peripheral surface that allows for reliable holding and removal, with the substrate film providing additional strength and the adhesive layer ensuring secure fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protective cover member is designed to be firmly fixed to an object during production and mounting, then the protective cover member can effectively prevent foreign matter from entering the opening, but the protective cover member becomes difficult to remove and may cause damage to the object or the cover member itself during removal
Solution Approach 1:
The protective cover member is segmented into multiple functional layers: a protective membrane layer that provides the protective function, a substrate film layer that provides mechanical strength, and an adhesive layer that provides fixation. This segmentation allows each layer to perform its specific function optimally while enabling easy removal of the entire structure without damaging the object.
Solution Approach 2:
The adhesive layer uses pressure-sensitive adhesive with controlled adhesive strength parameters that allow the cover member to be firmly fixed during production and mounting, yet easily removed when needed. The adhesive strength is optimized to provide sufficient holding force during use while allowing clean removal without damaging the object or the cover member.
2Strength
If the protective cover member is made with sufficient strength to prevent breaking during handling, then the cover member can be reliably held and removed, but the device complexity increases due to the need for multiple layers and structures
Solution Approach 1:
Multiple functional requirements are merged into a single integrated protective cover member structure. The protective membrane, substrate film, and adhesive layer are combined into one composite component that simultaneously provides protection, strength, and ease of removal, eliminating the need for separate components or complex assembly mechanisms.
Solution Approach 2:
The protective cover member uses a composite structure with different material layers: a porous protective membrane (such as PTFE) for foreign matter blocking, a substrate film for mechanical strength, and a pressure-sensitive adhesive layer for fixation. This composite material approach allows each layer to contribute its specific properties, achieving high strength without excessive complexity.
3Ease of operation
If the protective cover member is designed to be easily removable, then the cover member can be quickly taken off after production, but the protective cover member may not be firmly fixed during production and mounting, reducing its protective effectiveness
Solution Approach 1:
The pressure-sensitive adhesive layer provides self-service fixation by automatically bonding the protective cover member to the object upon contact, without requiring additional fixation mechanisms or complex assembly procedures. The same adhesive layer also enables easy removal by simply peeling off the cover member, providing both strong fixation and easy removability through its inherent adhesive properties.
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 solution enables the protective cover member to be removed with reduced damage to the object and the cover member, improving handling and reducing the risk of breakage during removal.
Implementation Method 1
a first adhesive layer configured to fix the protective cover member to the face
Data Source
AI summary
A protective cover member includes a laminate including: a protective membrane having a shape configured to cover an opening when the protective cover member is placed on the face of an object; a substrate film joined to the protective membrane; and a first adhesive layer configured to fix the protective cover member to the face, wherein an outer peripheral surface of the protective cover member has a step in a laminating direction of the laminate, a first portion of the protective cover member protrudes at the step more outward than a second portion of the protective cover member does when the protective cover member is placed on the face, the first portion being positioned farther from the face than the step, the second portion being positioned closer to the face than the step, and the protective membrane and the substrate film are positioned in the first portion.