Over-Center Adhesive Fixture Button for Flush Low-Profile Mounting
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Solution Overview
Problem
Existing attachment devices fail to provide a low profile, efficient, and versatile method for temporarily or permanently mounting structures onto substrates without leaving a significant profile or requiring complex installation processes.
Innovation Solution
A low profile fixture button with over-center spokes and a pressure-sensitive adhesive mounting plate, which is molded into a compact, unitary plastic component, allowing for easy press-fitting into a counterbore and achieving a flush mount by retracting into a backstop rim, enabling both temporary and permanent adhesive attachments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a conventional adhesive mounting device is used, then the mounting function is achieved, but the profile height is significant and not low profile
Solution Approach 1:
The fixture button employs dynamic spokes that can rotate from an initial extended position to a retracted position. During mounting, the spokes are forced to rotate over-center, causing the mounting plate to retract into the backstop rim, achieving a low profile mounted state while maintaining ease of operation through the adhesive mounting process
2Strength
If the mounting plate is pressed against the substrate to achieve adhesive bonding, then the bonding strength is improved, but the spoke structure must accommodate this compression without failing
Solution Approach 1:
The spoke hinge mechanism is designed to dynamically respond to compression forces. As the mounting plate is pressed against the substrate, the spokes rotate over-center through the hinge mechanism, transforming the compression force into a retraction motion that pulls the mounting plate into the backstop rim, thereby achieving strong adhesive bonding while managing the mechanical complexity through controlled dynamic movement
Solution Approach 2:
The mounting function and the profile reduction function are merged into a single adhesive pressing action. The same compression force that creates adhesive bonding also drives the spoke rotation and mounting plate retraction, eliminating the need for separate operations and reducing overall device 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 solution provides a reliable, low-profile, and efficient adhesive mounting system that ensures balanced force distribution and optimized geometry, allowing for both temporary and permanent attachments with minimal profile and easy installation, suitable for various substrate shapes and sizes.
Implementation Method 1
carrying a mounting plate having a pressure sensitive adhesive material thereon
Implementation Method 2
the resilient pressure sensitive adhesive material urges the attachment structure with a positive force toward the substrate
Data Source
AI summary
A low profile fixture button is provided for adhesive attachment to a substrate in a temporary or substantially permanent manner. The fixture button includes a plurality of preferably four over-center spokes substantially in a common plane and carrying a mounting plate having a pressure sensitive adhesive material thereon. The spokes are carried by an outer backstop rim, and are initially oriented with the mounting plate advanced toward the substrate. In a preferred form, the backstop rim seats within a counterbore formed in the rear side of a larger attachment adapted for low profile mounting onto the substrate. Pressing of the fixture button toward the substrate engages the advanced mounting plate with adhesive thereon with the substrate, and forces the spokes to displace over-center to a retracted position withdrawn substantially into the backstop rim and any associated larger attachment for low profile mounting onto the substrate.