Fibre-Anchored Sealing Profile for Stable Embedded Positioning

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Solution Overview

Problem

Sealing profiles in prefabricated components, such as tubbings, often experience displacement during assembly due to inadequate anchoring, leading to deformation and failure in sealing effectiveness.

Innovation Solution

Incorporating a non-woven, felted, or random fibre layer that is fixedly connected to the sealing profile and extends beyond its surface, providing additional anchorage within the curable material moulding, either instead of or in addition to anchoring feet, to enhance adhesion and prevent displacement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If anchoring feet are used to anchor the sealing profile in the moulding, then the seal can be held in position during casting, but the seal is still displaced during assembly of prefabricated parts

Engineering Contradiction:
Improveseal positioning stabilityVSAvoidseal placement accuracy
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The sealing profile combines two different anchoring mechanisms: traditional anchoring feet for vertical positioning and an integrated fibre layer (non-woven, felted, or random fibres) that extends into the curable material for lateral anchoring. This composite anchoring system prevents both vertical displacement during casting and lateral displacement during assembly, resolving the contradiction between initial positioning and final placement accuracy

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The fibre layer is specifically applied in regions where lateral anchoring is needed, while anchoring feet provide vertical positioning. This localized differentiation of anchoring functions ensures that each component addresses specific displacement directions, improving overall seal placement accuracy without compromising either positioning aspect

Inventive Principle:
Principle #3Local quality

2Ease of manufacture

If the sealing profile is anchored with anchoring feet, then it can be embedded in the curable material, but the seal deforms in the regions of frame corners during assembly

Engineering Contradiction:
Improveembedding capabilityVSAvoidseal shape stability
Core Design Contradiction:
Ease of manufactureVSStability of the object's composition

Solution Approach 1:

The combination of anchoring feet and fibre layer creates a distributed anchoring system that provides support across the entire sealing profile, particularly at vulnerable areas like frame corners. The fibre layer distributes stresses more evenly compared to discrete anchoring feet, preventing local deformations while maintaining the overall embedding capability

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The anchoring system is segmented into discrete anchoring feet and a continuous fibre layer network. This segmentation allows the anchoring feet to provide point-supported vertical anchoring while the fibre layer provides continuous lateral support, particularly effective at preventing deformation at critical locations such as frame corners during assembly

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11592128B2Sealing profile for embedding into a moulding of curable material
Publication Date: 2023.02.28 DATWYLER SEALING TECH DEUT
  • US11592128B2 patent drawing
  • US11592128B2 patent drawing
  • US11592128B2 patent drawing

AI summary

A sealing profile for embedding into a moulding of curable material, in particular a concrete or plastic moulding, and to a sealing arrangement comprising such a sealing profile. The object of the present invention is to provide a sealing profile for embedding into a moulding of curable material that can be anchored into the moulding in particular such that displacements of the seal in its seat occur to a significantly lesser extent, if at all, when installing or assembling the mouldings. The object is achieved by a sealing profile (1) with a profile region (2) having a profile region surface (4) which is directed towards the moulding (3) after embedding the sealing profile (1), wherein the profile region (2) has, at least in one subregion (6), a non-woven, felted or random fibre layer (5) which is fixedly connected to the sealing profile (1) and which extend beyond the profile region surface (4).