Impact Resistant Suspended Ceiling With Dynamic Stop

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Solution Overview

Problem

Existing impact-resistant suspended ceilings are limited in their ability to accommodate larger ceiling tiles and absorb significant impacts without breaking, particularly when using light and fragile tiles like mineral wool panels, which are prone to damage during large impacts.

Innovation Solution

The introduction of a stop mechanism arranged in a second plane parallel to the ceiling tiles, allowing them to move from a first position to a second position upon impact, where the impact is absorbed by the tile's movement and weight, reducing the risk of damage and enabling the use of a wider range of tile sizes and types, including mineral wool panels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If clips with spring elements are used to limit upward movement of ceiling tiles, then impact resistance is improved, but the ceiling tiles are still prone to breaking during large impacts

Engineering Contradiction:
Improveimpact resistanceVSAvoidtile integrity
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The patent transitions from a static clipping system to a dynamic stop system that allows ceiling tiles to move freely upward during impact. The stop is positioned at a distance from the suspension frame, creating a controlled movement space that absorbs impact energy through tile displacement rather than mechanical resistance, thereby preventing tile breakage while maintaining impact resistance

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention changes the key parameter from fixed tile position (with spring clips) to variable tile position (with spaced stop). By adjusting the distance between the suspension frame and the stop, the system can accommodate different tile types and impact levels, allowing light and fragile tiles like mineral wool to move sufficiently to absorb impact without breaking

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If clips are used to hold ceiling tiles, then small ceiling tiles can be supported, but larger ceiling tiles cannot be effectively supported

Engineering Contradiction:
Improvetile size compatibilityVSAvoidimpact absorption capability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The stop system serves multiple functions: it supports ceiling tiles of various sizes, absorbs impacts of different magnitudes, and works with diverse tile materials. By providing a clear movement path and positioning the stop at an optimized distance, the system universally accommodates both small and large tiles without requiring different support mechanisms

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

3Ease of operation

If ceiling tiles are held down by clips, then upward movement is limited, but the tiles are more prone to breaking during impact

Engineering Contradiction:
Improvemovement restrictionVSAvoidtile durability
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The system prepares for impact by providing a pre-configured stop at a safe distance from the suspension frame. This stop acts as a cushion that receives the tile after free movement, absorbing the impact energy without causing tile breakage. The distance between frame and stop is calculated to allow sufficient movement for energy absorption while preventing excessive displacement

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

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 solution enhances the impact resistance of suspended ceilings by allowing larger impacts to be absorbed by the tile's movement, reducing the risk of damage to fragile tiles, and enabling the use of mineral wool panels in high-impact areas such as gymnasiums, while maintaining sound-absorbing and fire-resistant properties.

Implementation Method 1

the impact on the ceiling tile will be at least partly transformed to a movement of the impacted ceiling tile towards the building structure

Methodology Applied
Scientific EffectImpact Force: Impact Force

Implementation Method 2

the full impact is absorbed by the movement of the ceiling tile towards the building construction

Methodology Applied
Scientific EffectKinetic Energy:

Implementation Method 3

the remaining part is absorbed by the stop upon impact of the ceiling tile against the stop in the second position

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentEP2241698B1Impact resistant suspended ceiling
Publication Date: 2012.07.04 CHICAGO METALLIC CONTINENTAL NV
  • EP2241698B1 patent drawingFigure 1
  • EP2241698B1 patent drawingFigure 2
  • EP2241698B1 patent drawingFigure 3

AI summary

Impact resistant suspended ceiling (1) comprising a suspension frame (2) for supporting ceiling tiles (4) in a first position on a first plane (23) and limiting means (5) for limiting an upward movement of the ceiling tiles (4) as a result of the ceiling tiles (4) being impacted wherein the limiting means (5) comprise a stop (3) arranged in a second plane (24) substantially parallel with the first plane (23), wherein the first and second planes (23, 24) are spaced by a distance greater than a thickness of the ceiling tiles such that ceiling tiles (4) can move from the first position to a second position, the ceiling tiles (4) in the first position being spaced from the stop (3) and in the second position being against the stop (3).