Cable End Protective Member With Dual-Adhesive Clean Removal
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Solution Overview
Problem
The inefficiency in cable installation due to the time-consuming process of removing adhesive residue from the cable main body after the protective member is removed, caused by the use of adhesives with high adhesive strength.
Innovation Solution
A cable design featuring a first adhesive layer with lower adhesive strength on the outer surface and a second adhesive layer with higher strength on the inner surface of the outer peripheral member, allowing for secure protective member attachment and easy residue removal, along with a peeling auxiliary cord and ripcord for facilitated separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If an adhesive with large adhesive strength is used to fix the protective member, then the protective member is firmly fixed to the cable main body, but a large amount of adhesive residue remains on the cable main body after the protective member is removed
Solution Approach 1:
The adhesive system is segmented into two distinct layers: a first adhesive layer with lower adhesive strength that contacts the cable main body, and a second adhesive layer with higher adhesive strength that contacts the protective member. This segmentation allows each layer to perform its specific function - the second layer provides strong fixation while the first layer enables clean removal without residue.
Solution Approach 2:
Different adhesive properties are applied at different locations between the protective member and cable main body. The first adhesive layer (closer to cable main body) has lower adhesive strength for easy removal, while the second adhesive layer (closer to protective member) has higher adhesive strength for secure fixation. This local quality differentiation resolves the contradiction between strong fixation and clean removal.
2Reliability
If an adhesive with large adhesive strength is used to fix the protective member, then the protective member remains firmly attached during cable pulling, but it takes a lot of time for cleaning work to remove the residue
Solution Approach 1:
The adhesive system is divided into two layers with different strengths positioned at different locations. The second adhesive layer ensures reliable fixation during cable pulling, while the first adhesive layer enables quick and easy removal without residue, thereby reducing cleaning time.
Solution Approach 2:
The adhesive strength varies locally across the bonding interface. The region closer to the protective member (second adhesive layer) has high adhesive strength for reliable fixation, while the region closer to the cable main body (first adhesive layer) has low adhesive strength for rapid removal, eliminating the need for time-consuming cleaning.
3Object-generated harmful factors
If the adhesive strength of the first adhesive layer is increased to prevent residue, then the protective member remains firmly fixed, but the protective member becomes difficult to remove without leaving residue
Solution Approach 1:
The adhesive bonding interface is segmented into two layers with different adhesive strengths. The first adhesive layer has lower strength to enable easy removal of the protective member, while the second adhesive layer has higher strength to prevent residue formation on the cable main body.
Solution Approach 2:
Different adhesive strengths are applied at different locations within the bonding interface. The first adhesive layer (near cable main body) has lower strength for easy removal, while the second adhesive layer (near protective member) has higher strength to prevent residue, thereby achieving both easy removal and residue prevention.
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
This design enhances installation efficiency by preventing residue adhesion and simplifying the removal process, ensuring the protective member remains attached during cable pulling and reducing cleaning time.
Implementation Method 1
a first adhesive layer in contact with an outer peripheral surface of the cable main body
Implementation Method 2
a second adhesive layer provided on an inner peripheral surface of the outer peripheral member and in contact with the protective member
Data Source
AI summary
A cable includes: a cable main body; a first adhesive layer in contact with an outer peripheral surface of the cable main body; a protective member that covers an end part of the cable main body; an outer peripheral member that covers a part of the protective member; and a second adhesive layer on an inner peripheral surface of the outer peripheral member and in contact with the protective member. Adhesive strength of the second adhesive layer is larger than adhesive strength of the first adhesive layer.