Adhesive Tape Applicator Rollers to Prevent Stretching and Compression

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing manual applicators for high-performance adhesive tapes, particularly those with foamed adhesive compounds and passivation layers, are inadequate in preventing excessive compression and stretching during application, leading to potential damage and impaired functionality, and require significant worker training and equipment.

Innovation Solution

An application device with a rotatable application roller and a pre-feed roller coupled via a coupling mechanism, where the application roller's rotation drives the pre-feed roller to convey the adhesive tape, minimizing stretching and compression, and optionally includes a take-up reel and guide elements to facilitate smooth tape application without motors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual applicators are used for high-performance adhesive tapes with foamed adhesive compounds and passivation layers, then the application process is simple and requires minimal equipment, but excessive compression and stretching occur during application leading to damage and impaired functionality

Engineering Contradiction:
Improvesimplicity of application processVSAvoidintegrity of adhesive tape
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The application device is divided into distinct functional modules: a feed roller system for tape supply, a release liner separation mechanism, and an application roller for substrate bonding. This segmentation allows each component to perform its specific function with optimized parameters, preventing excessive compression and stretching while maintaining operational simplicity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A release liner is introduced as an intermediary element between the adhesive tape and the application surface. The liner protects the adhesive compound during handling and application, allowing the tape to be applied without direct contact that would cause excessive compression. The liner is subsequently removed to reveal the adhesive surface for bonding

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If worker training and specialized equipment are increased to prevent damage to adhesive tapes during application, then the integrity and functionality of adhesive tapes are preserved, but the complexity and cost of the application process increase

Engineering Contradiction:
Improveintegrity of adhesive tapeVSAvoidcomplexity of application equipment
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The application device is designed to automatically control the application parameters through its mechanical configuration. The feed roller and application roller are positioned and dimensioned to automatically provide the correct tape tension and compression forces, eliminating the need for worker training or complex electronic control systems. The device serves itself by design rather than requiring external control

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The device uses carefully selected mechanical parameters such as roller diameter, roller spacing, and applied force to optimize the application process. By changing these physical parameters rather than adding complex control systems, the device achieves reliable tape application without excessive complexity

Inventive Principle:
Principle #35Parameter changes

3Device complexity

If traditional application methods are used for adhesive tapes, then the equipment and process are simple, but stretching and compression damage the passivation layer and adhesive compound

Engineering Contradiction:
Improvesimplicity of application equipmentVSAvoidintegrity of passivation layer
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The release liner is positioned and prepared in advance before the actual adhesive application. The liner pre-protects the adhesive compound and passivation layer during tape feeding and positioning, preventing damage before the critical application moment. This preliminary protective action allows simple equipment to achieve precise results

Inventive Principle:
Principle #10Preliminary action

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 device ensures reliable, reproducible, and cost-effective application of adhesive tapes, particularly those with foamed compounds, reducing the need for complex automation and worker training, while maintaining the integrity of the adhesive and passivation layers.

Implementation Method 1

the application roller and the pre-feed roller are coupled by a coupling mechanism, such that rotation of the application roller brings about rotation of the pre-feed roller

Methodology Applied
Scientific EffectMechanical coupling: Gear

Implementation Method 2

Corresponding pressure-sensitive adhesive tapes can be applied to a substrate by pressure and remain stuck there

Methodology Applied
Scientific EffectPressure-sensitive adhesion: Pressure Increase

Implementation Method 3

rotation of the application roller brings about rotation of the pre-feed roller, which can convey the adhesive tape to be applied in the direction of the application roller

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS20260109565A1Application device for the application of web-shaped adhesive elements
Publication Date: 2026.04.23 TESA SE
  • US20260109565A1 patent drawing
  • US20260109565A1 patent drawing
  • US20260109565A1 patent drawing

AI summary

Application devices for the application of web-shaped adhesive elements are disclosed and comprise a first reel receptacle configured such that an adhesive tape reel filled with a web-shaped adhesive element may be arranged rotatably in the first reel receptacle The application devices further comprise a rotatable pre-feed roller and a rotatable application roller, wherein a lateral surface of the application roller has a depression running along the circumferential direction, wherein a web-shaped adhesive element may be guided via the pre-feed roller to the application roller, wherein the application roller and the pre-feed roller are coupled to a first coupling mechanism such that rotation of the application roller brings about rotation of the pre-feed roller.