Ceiling Panel Clip Retaining Finger for Torsion Spring

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Solution Overview

Problem

Existing ceiling panel suspension systems using torsion springs lack secure retention mechanisms, leading to potential inadvertent release and instability in the ceiling panel's position.

Innovation Solution

A clip design featuring elongate securing arms and a retaining finger with a hooked portion that engages the torsion spring, providing secure attachment to the ceiling panel's top flange, allowing for preassembly and easy installation, with features like cutaway portions and movable securing arms for enhanced retention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If an open hook design is used to allow torsion spring insertion, then ease of assembly is improved, but retention reliability deteriorates due to potential inadvertent release

Engineering Contradiction:
Improveease of assemblyVSAvoidretention reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The clip transitions from a static open hook design to a dynamic system where the torsion spring's own movement and the retaining finger's geometry work together to ensure retention. The spring's natural oscillation and the hooked portion's positioning create a self-locking mechanism that prevents inadvertent release while maintaining ease of assembly.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The retaining finger acts as an intermediary element between the open hook structure and the torsion spring. It provides a controlled interface that allows the spring to be inserted easily while simultaneously ensuring reliable retention through its hooked portion that engages with the spring's coil.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the base portion tightly engages the flange for secure attachment, then retention reliability is improved, but device complexity increases due to additional retention locks or projections

Engineering Contradiction:
Improveattachment reliabilityVSAvoidstructural complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The base portion's engagement features and the retaining finger are merged into a single integrated structure. The retaining finger extends from the base portion and combines the functions of retention and engagement, eliminating the need for separate retention locks or projections and reducing overall structural complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The retaining finger serves multiple functions: it provides the hooked portion for spring retention, acts as an engagement element with the flange, and maintains the structural integrity of the clip. This multi-functionality reduces the need for additional components.

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

3Reliability

If the hooked portion extends inwardly into the cutaway portion for enhanced retention, then retention reliability is improved, but ease of manufacture deteriorates due to complex geometry

Engineering Contradiction:
Improveretention reliabilityVSAvoidmanufacturing ease
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The clip is segmented into distinct functional zones: the base portion for flange engagement, the retaining finger for spring retention, and the cutaway portions for assembly facilitation. This segmentation allows each feature to be optimized independently while maintaining manufacturability through standardized forming processes.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cutaway portions are designed in advance to facilitate the insertion process, allowing the torsion spring to be easily positioned on the retaining finger before final engagement. This preliminary design feature simplifies assembly without compromising the retained reliability of the hooked portion.

Inventive Principle:
Principle #10Preliminary action

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

The clip design ensures stable and secure retention of torsion springs, preventing inadvertent release and simplifying installation, while allowing for flexible positioning and improved load distribution, resulting in a consistent and level ceiling panel arrangement.

Implementation Method 1

These suspension ceiling panel systems can include torsion spring arrangements for releasably suspending the ceiling panels beneath a support grid

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

The retaining finger has a free end with a hooked portion underlying and in load transfer relationship with the top flange capturing the torsion spring on the ceiling panel

Methodology Applied
Scientific EffectMechanical Fastening: Mechanical Fastener

Data Source

PatentUS8683768B2Ceiling panel clip
Publication Date: 2014.04.01 CERTAINTEED CANADA
  • US8683768B2 patent drawing
  • US8683768B2 patent drawing
  • US8683768B2 patent drawing

AI summary

A ceiling panel clip with improved characteristics includes a torsion spring retaining loop that has a free end captured beneath a frame member of the ceiling panel. The retaining loop at one end thereof is integral with a base portion of the clip and the free end extends downwardly to the base portion. The base portion and retaining loop preferably cooperate to capture a coiled portion of a torsion spring used to suspend the ceiling panel. Preferably, securing legs of the torsion spring are biased inwardly to allow the coiled portion to be inserted on the retaining loop. Release of the securing legs captures the coiled portion on the clip.