Sealing Tape Foam Strip Separation for Film Attachment

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Solution Overview

Problem

The introduction of a film element into the gaps between foam strips in sealing tape production is complex due to the limited width of the cuts, making it difficult to attach sealing elements efficiently.

Innovation Solution

The method involves cutting a foam carrier into separate strips and moving them in different directions to increase the distance between them, allowing for easier attachment of a film element or adhesive tape, which is then reintroduced between the strips to form a sealing tape with enhanced airtightness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a cut is made in the foam carrier to create separate foam strips, then the foam strips can be separated, but the distance between them remains limited making it difficult to attach film elements

Engineering Contradiction:
Improveattachment of film elementVSAvoiddistance between foam strips
Core Design Contradiction:
Ease of operationVSLength of stationary object

Solution Approach 1:

The foam carrier is dynamically separated into individual strips after cutting, allowing the strips to be moved apart temporarily to increase accessibility for film element attachment. This dynamic separation enables operators to access and attach film elements to each foam strip independently, then the strips are recombined into the final sealing tape product.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the foam carrier strips are kept close together after cutting, then the structure remains compact, but the accessibility of surfaces for sealing element attachment is reduced

Engineering Contradiction:
Improveaccessibility of surfacesVSAvoidproduction process complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The foam carrier is segmented into individual foam strips through cutting, and these strips are temporarily separated to increase surface accessibility. This segmentation allows each strip to be independently processed with film elements attached to its surfaces, improving operational ease without significantly complicating the overall production process.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3278967B1Method and device for manufacturing a sealing tape
Publication Date: 2023.10.04 TREMCO CPG GERMANY GMBH
  • EP3278967B1 patent drawingFigure 1a~1b
  • EP3278967B1 patent drawingFigure 1c~2a
  • EP3278967B1 patent drawingFigure 2b~2c

AI summary

The invention relates to a method and a device for producing a sealing tape, wherein a foam carrier is transported in a predetermined transport direction (T) and a cut is made in this foam carrier extending in this transport direction, and at least two completely separate foam carrier strips (10a, 10b) are produced by this cut, wherein a distance between this first foam carrier strip (10a) and the second foam carrier strip (10b) is increased by transporting at least one of these two foam carrier strips at least temporarily in a different direction (Y) than the other foam carrier strip. The invention further relates to a sealing tape with a base carrier.