Carpet

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional carpets with anti-slip layers often result in an unsightly appearance due to visible extensions or kinks at the side edges, especially when thin, and lack radiation protection.

Innovation Solution

The carpet design features folded and glued edge strips with shaved pile, an anti-slip layer confined within these edges, and a radiation protection layer between the anti-slip and backing layers, ensuring a seamless appearance and additional radiation shielding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the anti-slip layer extends to the side edge of the carpet, then the anti-slip function is maximized, but the appearance becomes unsightly due to visibility from the side

Engineering Contradiction:
Improveanti-slip functionVSAvoidappearance
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The carpet structure is segmented into distinct zones: the anti-slip layer is confined to the central area, while folded edge strips form a separate border structure. This segmentation allows the anti-slip layer to provide maximum friction where needed without extending to the visible side edges, thus maintaining both functional reliability and aesthetic appearance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The edge strips are folded over to create a three-dimensional structure that vertically covers the side edges. This dimensional transformation allows the anti-slip layer to remain confined horizontally while the folded edges provide vertical coverage, preventing visibility from the side without compromising anti-slip performance in the walking area.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Shape

If the anti-slip layer ends at a distance from the carpet's side edges, then the appearance is improved, but a crease becomes visible on the carpet's surface in the area of the anti-slip layer's side edge

Engineering Contradiction:
ImproveappearanceVSAvoidvisible crease
Core Design Contradiction:
ShapeVSObject-generated harmful factors

Solution Approach 1:

The edge strips are pre-folded and glued to the underside of the carpet before the anti-slip layer is applied. This preliminary action creates a structural framework that prevents crease formation, allowing the anti-slip layer to end at a distance from the side edges without generating visible surface defects.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The folded edge strips act as an intermediary structure between the anti-slip layer and the carpet's side edges. This intermediate element absorbs the stress and prevents direct contact between the anti-slip layer's edge and the carpet surface, thereby eliminating crease formation while maintaining aesthetic appearance.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of manufacture

If conventional carpet structures are used, then the manufacturing process is simple, but radiation protection is not provided

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidradiation exposure
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The carpet incorporates a composite structure with a radiation protection layer made of conductive material (such as metal fibers or mesh) integrated between the backing layer and the anti-slip layer. This composite design adds radiation shielding functionality while maintaining compatibility with conventional carpet manufacturing processes.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The radiation protection layer serves multiple functions: it provides electromagnetic radiation shielding, maintains the structural integrity of the carpet, and can potentially provide static electricity dissipation. This multi-functionality is achieved by integrating the radiation protection layer into the existing carpet structure without requiring separate manufacturing processes.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 provides a non-slip carpet with an attractive appearance, enhanced stability, and radiation protection, while preventing visible kinks and improving acoustic properties and walking comfort.

Implementation Method 1

a radiation protection layer is arranged between the anti-slip layer and the backing layer of the carpet material

Methodology Applied
Scientific EffectElectromagnetic radiation shielding: Absorption (EM radiation)

Implementation Method 2

an anti-slip layer held by an adhesive bond

Methodology Applied
Scientific EffectAdhesive bonding: Adhesive

Data Source

PatentEP3867444B1Carpet
Publication Date: 2024.05.01 SH IMMOBILIEN GMBH
  • EP3867444B1 patent drawingFigure 1~2
  • EP3867444B1 patent drawingFigure 3~5

AI summary

In the case of a carpet comprising a carpet material (1) which has a pile layer (2) in the form of a cut pile and has a backing layer (3), and comprising an anti-slip layer (5) which is retained by means of an adhesive bond (6), the bottom side (4) of which anti-slip layer forms the bottom side of the carpet, edge strips (11) of the carpet material (1) are folded over and adhesively bonded, the side edges (10) of the carpet (1) being formed by the bends between the folded-over edge strips (11) and the rest of the carpet material (1). The pile layer (2) of the folded-over edge strips (11) is sheared off. The anti-slip layer (5) extends only over the region surrounded by the folded-over edge strips (11). A radiation protection layer (7) is arranged between the anti-slip layer (5) and the backing layer (3) of the carpet material (1).