Component Retention Assembly with Hinged Clip for Vibration Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional cantilever snap-fits are prone to failure in larger vehicles due to higher vibration loads, leading to component disengagement or breakage, and are not cost-effective compared to bolt-based fastening methods.
Innovation Solution
A component retention assembly featuring a pair of cantilever prongs and a clip with a living hinge, where the clip rotates between open and closed positions to secure the component, using ramps and retaining faces to engage with a bracket, preventing disengagement during vibration and creep.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional cantilever snap-fit is used to mount component, then cost and labor time are reduced, but reliability deteriorates due to increased risk of disengagement or breakage under vibration loads
Solution Approach 1:
The fastening system is divided into two functional segments: cantilever prongs that provide initial mechanical retention and a clip with living hinge that provides secondary locking. This segmentation allows each component to specialize in specific retention functions, improving overall reliability without requiring a complete shift to bolt-based systems.
Solution Approach 2:
The clip incorporates a living hinge that provides dynamic movement capability, allowing the clip to rotate between open and closed positions. This dynamic feature enables the system to adapt during assembly and operation, ensuring reliable engagement while maintaining the simplicity of a snap-fit approach rather than static bolt connections.
2Reliability
If bolts, nuts, and washers are used to mount component, then reliability improves under vibration loads, but cost and labor time increase
Solution Approach 1:
The invention uses a polymer-based clip with a living hinge as a disposable or replaceable component that provides bolt-level reliability at fraction of the cost. The clip is designed to be simple enough to replace if needed but durable enough to withstand vibration loads, eliminating the need for expensive metal fasteners while maintaining assembly ease.
Solution Approach 2:
The design changes the material parameter from metal (bolts, nuts, washers) to polymer (clip with living hinge), and changes the structural parameter from rigid threaded connections to flexible hinged connections. These parameter changes maintain retention reliability under vibration while dramatically improving ease of manufacture and assembly.
3Stability of the object's composition
If cantilever prongs are used alone to secure component, then assembly is simple, but stability deteriorates due to component disengagement under vibration and creep
Solution Approach 1:
The cantilever prongs perform the preliminary action of initial engagement and positioning of the component bracket. This preliminary retention allows the clip to then be applied and locked into place, creating a two-stage retention process that ensures stability without requiring complex pre-assembled fastening structures.
Solution Approach 2:
The clip acts as an intermediary element between the cantilever prongs and the bracket. It mediates the connection by providing additional locking action through its prong engaging the bracket's aperture, preventing disengagement under vibration and creep while adding only minimal structural complexity.
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 assembly effectively secures components in larger vehicles by resisting vibration and creep, reducing the risk of disengagement and rattle, while being more cost-effective than traditional bolt-based methods.
Implementation Method 1
The clip may rotate about the hinge between an open position and the closed position
Implementation Method 2
Each cantilever prong of the pair of cantilever prongs may further include a ramp on a free end of the cantilever prong. The prong may further include a ramp on a free end of the prong
Data Source
AI summary
A component retention assembly is fixed to an associated part and configured to be engaged with a bracket of a component. The component retention assembly may include a pair of cantilever prongs and a clip. The clip includes a hinge and an extension that is removably disposed between the pair of cantilever prongs when the clip is in a closed position. A prong is disposed on an end of the extension opposite the hinge. The prong includes a retaining face configured to engage the bracket and retain the clip in the closed position.