Clip Protrusion Slope Design for Predictable Panel Grid Demounting

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Solution Overview

Problem

Existing support systems for ceiling or wall panels risk deformation when attempting to dismantle T-shaped profiles from clips, leading to unpredictable demounting and potential weight-induced spontaneous demounting, which complicates panel reorganization and changes.

Innovation Solution

The support system features clips with inwardly protruding flanges having a first portion with a receiving slope of less than 45° and a second portion with an oppositely sloping surface of at least 45°, facilitating secure insertion and retention of the T-shaped profile bulb, allowing for predictable demounting and improved panel positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the T-shaped profile is firmly retained in the clip to prevent spontaneous demounting under weight, then the holding force is sufficient, but the profile cannot be easily demounted for reorganization

Engineering Contradiction:
Improveholding forceVSAvoiddemounting ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The protrusion is divided into two distinct portions: a first portion with a receiving slope for insertion and a second portion with an oppositely sloping surface for retention. This segmentation allows the same structure to facilitate both easy insertion and secure retention without requiring separate mechanisms.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The second portion of the protrusion has an oppositely sloping surface compared to the first portion. This inverted slope configuration creates a mechanical lock that prevents spontaneous demounting while allowing controlled removal when needed, effectively inverting the insertion mechanism to create retention.

Inventive Principle:
Principle #13The other way round (Inversion)

2Ease of manufacture

If the clip structure is simplified for easier manufacturing, then the device complexity is reduced, but the precision of panel positioning may be compromised

Engineering Contradiction:
Improveclip manufacturing simplicityVSAvoidpanel positioning accuracy
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The protrusion features are concentrated on specific local areas of the flange rather than requiring precision throughout the entire clip structure. The angled surfaces are localized to the protrusion portions, allowing simple manufacturing of the rest of the clip while achieving precise positioning through these localized geometric features.

Inventive Principle:
Principle #3Local quality

3Reliability

If the receiving slope angle is reduced to less than 45° for better retention, then the holding force is improved, but the insertion difficulty increases

Engineering Contradiction:
Improveretention forceVSAvoidinsertion ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The protrusion is segmented into two portions with different slope characteristics. The first portion has a shallower receiving slope (less than 45°) that facilitates easy insertion, while the second portion has a steeper oppositely sloping surface (at least 30°, preferably at least 45°) that provides strong retention. This segmentation allows each portion to be optimized for its specific function.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP2573290B1A support system for mounting a panel grid in ceiling or wall support structure
Publication Date: 2015.08.12 ROCKWOOL INT AS
  • EP2573290B1 patent drawingFigure 1~2
  • EP2573290B1 patent drawingFigure 3~4
  • EP2573290B1 patent drawingFigure 5~6

AI summary

The present invention concerns a support system for mounting a suspending a panel grid in ceiling or wall support structure, said system comprising a plurality of panel retaining profiles each having an inverted T-shaped cross-section with a pair of laterally extending support flanges for supporting and retaining wall or ceiling panels, and an upwardly directed leg having a bulb portion at its distal end; and a plurality of clips with mounting means for fixing the clips to a support structure and receiving means for receiving and retaining the bulb portion of the leg of a panel retaining profile, wherein each clip is provided with a base portion which is provided with the mounting means and two substantially parallel flanges on each side of said base portion, said flanges having inwardly protrusions pointing towards each other for receiving the bulb portion of a T-shaped profile. Such mounting system is found advantageous since the holding force is more accurately predictable and that demounting of the T-profile from the clips is still possible but in a predictable manner as canting or otherwise twisting the profile in the clip during demounting is eliminated.