Snap-Fit Clamp Assembly With Over-Center Locking Stability
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Solution Overview
Problem
Existing clamp assemblies for telecommunications enclosures lack a secure and efficient mechanism to transition between open and closed configurations without loose pins, which can lead to instability and increased removal force requirements.
Innovation Solution
A clamp assembly featuring pivotally connected semi-circular clamp half-pieces with integrated snap-fit interfaces and a latch arrangement, including a link arm and lever arm with over-the-center cam surfaces, that securely locks the assembly in a closed configuration, utilizing double action snap-fit connections to enhance stability and ease of assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional clamp assemblies use loose pins for pivotal connection, then assembly is simple, but stability decreases and removal force increases
Solution Approach 1:
The patent integrates the pivotal connection function directly into the clamp half-pieces by forming recesses and protrusions that mate together, eliminating the need for separate loose pins. This merging of functions increases stability while maintaining assembly simplicity.
Solution Approach 2:
The clamp half-pieces are designed with self-aligning recesses and protrusions that automatically guide and secure the pivotal connection during assembly, eliminating the need for additional fastening components and reducing both complexity and removal force requirements.
2Reliability
If clamp half-pieces are pivotally connected without integrated snap-fit interfaces, then manufacturing is simpler, but stability and security decrease
Solution Approach 1:
The snap-fit interface is integrated directly into the clamp half-pieces as molded features rather than separate components. This combining of functions provides secure connection while maintaining manufacturing simplicity through single-piece molding of each half-piece.
Solution Approach 2:
The snap-fit recesses and protrusions are designed to self-align and self-secure during assembly, eliminating the need for additional fastening operations or components, thereby maintaining ease of manufacture while achieving high connection security.
3Ease of operation
If latch arrangement uses multiple separate components, then adjustment flexibility increases, but assembly complexity and time increase
Solution Approach 1:
The latch arrangement is integrated as molded features within the clamp half-pieces rather than separate components. The recesses and protrusions that form the latch are built-in, eliminating the need for additional parts while maintaining full operational functionality and reducing assembly time.
Solution Approach 2:
The latch mechanism operates through self-aligning geometric features that automatically engage and disengage without requiring external tools or complex manipulation, providing ease of operation while minimizing assembly and disassembly time.
4Reliability
If snap-fit interfaces include loose pins, then disassembly is easier, but stability and locked configuration security decrease
Solution Approach 1:
The snap-fit connection is integrated directly into the clamp half-pieces through molded recesses and protrusions, eliminating loose pins. This provides superior stability in the locked configuration while maintaining ease of disassembly through simple manual manipulation of the integrated features.
Solution Approach 2:
The integrated snap-fit features are designed to be manually engaged and disengaged without tools, providing both high stability when locked and ease of disassembly when needed, through self-contained geometric design.
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 clamp assembly provides a secure, stable, and efficient mechanism for transitioning between open and closed configurations, significantly increasing the force required for removal and ensuring secure locking, thus addressing the instability issues of existing technologies.
Implementation Method 1
The first latch component can include a first over-the-center cam surface. The latch arrangement may further include a lever arm pivotally connected to a second end of the link arm by a third snap-fit interface that does not include any loose pins. The lever arm can include a second over-the-center cam surface that engages the first over-the-center cam surface to draw the second ends of the first and second clamp half-pieces toward each other
Implementation Method 2
The clamp half-pieces can be pivotally connected to each other at their first ends at a first snap-fit interface that does not include any loose pins separate from the first and second clamp half-pieces
Data Source
AI summary
A clamp assembly includes a first clamp half-piece and a second clamp half-piece. In one example, the clamp half-pieces are identically shaped. In one example, each of the clamp half-pieces has at least one integral pin and at least one aperture. The first and second clamp half-pieces are pivotally connected to each other via a first snap-fit interface in which the integral pin of the first clamp half-piece snap-fits into the at least one aperture of the second clamp half-piece. The clamp assembly can also include a link arm connected to the first clamp half-piece via a second snap-fit interface. A lever arm can also be included that is pivotally connected to the link arm via a third snap-fit interface. The clamp assembly does not require separate link pins or other parts and only includes four components: the clamp half-pieces, the link arm, and the lever arm.