Adhesive Tape With Offset Liner Prevents Cable Flagging
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Solution Overview
Problem
Existing adhesive tapes for wrapping cables become rigid and prone to flagging when wrapped helically due to full-surface adhesive coverage, leading to potential damage and reduced flexibility, especially in tight installation conditions.
Innovation Solution
An adhesive tape with a carrier and adhesive layer where the cover has a width greater than the carrier, applied with an offset, ensuring the adhesive layer is not in contact with the cable sheathing during helical wrapping, maintaining mechanical stability and ease of manufacture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the entire surface of the carrier is covered with adhesive coating, then the holding force of the adhesive is improved, but the rigidity of the cable harness increases and flexibility is reduced
Solution Approach 1:
The adhesive layer is applied selectively only to specific regions of the carrier rather than the entire surface. This creates local adhesive zones that provide sufficient holding force while leaving other areas adhesive-free to maintain flexibility and prevent excessive rigidity in the wrapped cable harness.
2Reliability
If the adhesive tape is wrapped helically with full-surface adhesive coverage, then the protective function is improved, but the tape ends flag and the risk of damage on sharp edges increases
Solution Approach 1:
The adhesive is applied only to specific local regions of the carrier rather than the entire surface. This localized adhesive application provides sufficient protective function while reducing the rigidity that causes flagging at tape ends during helical wrapping.
3Strength
If a two-layer carrier structure is used, then abrasion resistance is improved, but the rigidity increases and flexibility is reduced
Solution Approach 1:
The adhesive is applied selectively to specific regions of the two-layer carrier structure rather than the entire surface. This maintains the abrasion resistance benefits of the two-layer construction while preventing excessive rigidity and preserving flexibility for easy deformation around sharp edges.
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 tape prevents adhesion to the cable insulation, maintaining high flexibility and abrasion resistance, while providing effective noise damping and temperature resistance, and easy deformation without risking damage from sharp edges.
Implementation Method 1
a preferably pressure-sensitive adhesive coating applied to at least one side of the carrier
Implementation Method 2
achieve a protective function... To improve damping and increase abrasion resistance
Implementation Method 3
the holding force of the adhesive
Data Source
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AI summary
The adhesive tape comprises a carrier (10) having a top face and a bottom face, an adhesive layer (11), and a sheetlike liner (12). The carrier has a width based on a transverse direction. The adhesive layer is applied on the bottom face of the carrier. The sheetlike liner: has a width based on the transverse direction, where the width is greater than or equal to the width of the carrier; and is applied on an open side of the adhesive layer. The liner comprises an offset having a width relative to the carrier in transverse direction. The adhesive tape comprises a carrier (10) having a top face and a bottom face, an adhesive layer (11), and a sheetlike liner (12). The carrier has a width based on a transverse direction. The adhesive layer is applied on the bottom face of the carrier. The sheetlike liner: has a width based on the transverse direction, where the width of the liner is greater than or equal to the width of the carrier; and is applied on an open side of the adhesive layer. The liner comprises an offset having a width relative to the carrier in transverse direction. The adhesive tape is passed in a helical line around an elongate material. A ratio of the width of the carrier to the width of the liner is 1:1. The width of the offset is 0.5 width of the carrier. An independent claim is included for an elongate material such as cable harness.