Cam-Locked Panel Connection for Turning and Downward Loads
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Solution Overview
Problem
Existing constructional panels lack effective and reliable means for releasable connections that can withstand downward and turning forces, which are crucial for applications like roadways and aircraft taxiing surfaces.
Innovation Solution
A cam mechanism with a rotatable slot and locking surface is used to secure the connection between panels, allowing insertion and locking of a bolt, preventing removal by blocking rotation into the open position, and utilizing a ratchet-like engagement for secure attachment and detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a simple bolt connection is used between panels, then assembly is easy and quick, but the connection cannot withstand turning forces and downward forces reliably
Solution Approach 1:
The cam mechanism transitions from an open position during assembly to a locked position during operation. When the bolt is inserted, the cam rotates automatically to engage the locking surface, transforming the connection from a simple insertion to a dynamically locked state that can withstand turning and downward forces while maintaining ease of assembly
Solution Approach 2:
The connection mechanism is divided into distinct functional elements: the bolt for insertion, the cam for locking action, the slot with bolt engagement surface for force application, and the locking surface for final securing. This segmentation allows each component to perform its specific function while collectively providing reliable connection under load
2Strength
If a secure locking mechanism is implemented to withstand turning forces, then connection strength improves, but assembly and disassembly become more difficult
Solution Approach 1:
The cam mechanism is designed to self-lock automatically upon bolt insertion. The bolt engagement surface is positioned such that inserting the bolt applies force that automatically rotates the cam into the locked position without requiring separate locking actions. For disassembly, applying force in the opposite direction releases the lock, making the process simple while maintaining strong connection during operation
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 secure, releasable connection that withstands downward and turning forces, ensuring stability and ease of assembly/disassembly of constructional panels.
Implementation Method 1
a cam rotatable about a pivot within the enclosure between an open position and a locked position, the cam having a slot formed within it adapted to receive a portion of a corresponding bolt of the first part, the slot having a bolt engagement surface with a portion sloped at an angle
Implementation Method 2
the slot having a locking surface substantially opposite the bolt engagement surface, and wherein when the cam is in the said locked position the locking surface is arranged substantially parallel to the bolt engagement surface so that movement of the said bolt portion away from the bolt engagement surface and towards the locking surface is blocked by the locking surface
Data Source
AI summary
Means for releasably connecting two constructional panels to one another comprising first and second parts, wherein: the first part has a bolt; and the second part has an enclosure with an opening into which the bolt of the first part can be moved, a cam rotatable about a pivot within an enclosure between an open position and a locked position, the cam having a slot formed within it adapted to receive a portion of a corresponding bolt of the first part, the slot having a bolt engagement surface with a portion sloped at an angle to the said first dimension, the slot having a locking surface substantially opposite the bolt engagement surface.