Flush-Mount Retainer Assembly for Thin Panel Stability
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Solution Overview
Problem
Conventional retainer assemblies are prone to movement and sagging, especially when used with thin panels and under external forces like gravity and vibrations, limiting their application scope.
Innovation Solution
The flush mount retainer assembly features a base with a threaded cylinder, front and back support members with retention members, and side retention members that establish an interference fit with the panel opening, providing stability and preventing withdrawal, even with varying panel thicknesses and depths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional retainer assemblies are used with thin panels, then the assembly can be installed in various panel configurations, but the assembly is prone to movement and sagging under external forces
Solution Approach 1:
The retainer assembly is divided into multiple functional segments: a base portion, front support members with retention members, back support members, and side retention members. Each segment performs a specific function - the front support members engage with the panel opening, the back support members provide structural support, and the side retention members prevent lateral movement. This segmentation allows the assembly to adapt to different panel configurations while maintaining stability under external forces through the coordinated action of each segment.
Solution Approach 2:
The patent introduces side retention members that extend laterally from the base portion, adding a lateral dimension to the retention mechanism. While conventional retainers only engage from the front and back, the side retention members engage the sides of the panel opening, creating a three-dimensional engagement that prevents movement in all directions. This dimensional expansion provides stability under external forces while maintaining compatibility with various panel thicknesses.
2Reliability
If the retainer assembly is designed to prevent movement prior to fastener engagement, then stability is improved, but the assembly becomes more complex
Solution Approach 1:
The patent merges multiple retention functions into a single integrated base portion. The front support members, back support members, and side retention members are all connected to and emerge from the same base structure, forming a unified assembly. This merging reduces the number of separate components that would need to be assembled and coordinated, simplifying the overall device while providing comprehensive stability prior to fastener engagement.
Solution Approach 2:
The base portion serves multiple functions simultaneously: it houses the threaded bore for fastener engagement, supports the front and back support members, anchors the side retention members, and provides the structural foundation for the entire assembly. This multi-functionality reduces the need for separate structural elements, thereby reducing device complexity while maintaining reliability.
3Reliability
If the support members are designed to expand behind the panel opening, then securement is improved, but the assembly cannot remain stable in thin panels with insufficient depth
Solution Approach 1:
Instead of having support members expand backward behind the panel opening as in conventional designs, the patent inverts the approach by having side retention members extend laterally outward from the base portion toward the sides of the panel opening. This inverted geometry allows the retention members to engage the panel walls from the sides rather than from behind, making the assembly suitable for thin panels where backward expansion is not feasible.
Solution Approach 2:
The side retention members act as intermediaries between the base portion and the panel opening walls. Rather than relying on the support members to expand and contact the panel from behind, the side retention members directly engage the lateral surfaces of the panel opening, providing a stable interface that works effectively with thin panels. These intermediary elements transfer and distribute the retention forces across multiple contact points.
Data Source
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AI summary
A flush mount retainer assembly (20) adapted to be received within a panel opening is provided. The flush mount retainer assembly includes a base (26) defining a threaded bore (28) for receiving a fastener and a front and back support members (32, 34) that each resiliently flex outwardly in response to the fastener engaging the threaded bore. Front and back retention members (40, 40') extend from the front and back support members, respectively, to limit movement of the flush mount retainer assembly relative to the panel prior to the bore being engaged by the fastener. The flush mount retainer assembly further includes first and second-side retention members (42A, 42A') disposed between vertical portions of the front and back support member and being adapted to stabilize the flush mount retainer assembly within panel openings having certain depths.