Twist-Lock Fixing Resists Vibration Migration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing modular rail mounting systems with twist-lock connectors are prone to wobbling and migration due to vibration, requiring frequent adjustments and replacement of worn connectors, which is time-consuming and labor-intensive.
Innovation Solution
The twist-lock fixing includes a connector with a stem, a locking tab, and a head, along with a body section that limits longitudinal insertion into the locking channel. The locking tab bends and unbends as the fixing is rotated, securing it in place and resisting rotation in the opposite direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a twist-lock connector is used in a modular rail mounting system, then the component can be quickly positioned and locked in place, but the connector is prone to wobbling and migration due to vibration
Solution Approach 1:
The connector is divided into distinct functional segments: a body portion for insertion, a locking tab for engagement, and a stem for rotation. This segmentation allows each part to perform its specific function optimally while working together to prevent wobbling and migration.
Solution Approach 2:
The locking tab is extracted as a separate resilient element from the main body, allowing it to independently deflect and engage with the T-slot walls. This extraction enables the locking mechanism to function separately from the insertion and rotation actions.
Solution Approach 3:
The locking tab is pre-configured with resilience to automatically deflect outward during insertion, creating preliminary engagement with the T-slot walls before final locking occurs. This preliminary anti-action prevents wobbling and migration from the outset.
2Reliability
If the locking tab is made resilient to deflect during rotation, then the connector locks securely in place, but the structure becomes more complex
Solution Approach 1:
The locking tab is merged with the connector body as an integrated resilient feature rather than a separate component. This combining maintains secure locking functionality while reducing overall structural complexity and the number of parts.
Solution Approach 2:
The locking tab is designed as a thin, flexible extension of the connector body that can deflect elastically during rotation and engagement. This flexible element provides secure locking without requiring complex mechanical structures.
3Reliability
If the flange limits longitudinal insertion, then the connector is prevented from sliding out, but the installation process becomes more difficult
Solution Approach 1:
The flange is pre-positioned on the connector body to automatically limit longitudinal insertion once the desired depth is reached. This preliminary action prevents over-insertion and sliding out without requiring additional installation steps or adjustments.
Solution Approach 2:
The flange structure provides self-limiting insertion by contacting the workpiece surface or T-slot boundary, automatically preventing the connector from sliding out without requiring external restraint mechanisms or complex installation procedures.
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
This design reduces the likelihood of the twist-lock fixing being inadvertently dislodged and resists wobbling, migration, and sliding out of the original installed location, providing a more secure connection and simplifying component installation and rework.
Implementation Method 1
The locking tab bends and unbends as the fixing is rotated, securing it in place and resisting rotation in the opposite direction
Data Source
AI summary
A twist-lock fixing may include a connector configured for receipt into a locking channel. The connector includes a stem having a first end opposite a second end. The stem includes a locking tab extending from a first side of the stem. The connector includes a head, the head extending from the second end of the stem and spaced apart from the locking tab. The twist-lock fixing may include a body section attaching to the connector at the first end of the stem. The body section includes a flange configured for contacting a first side of the workpiece to limit a longitudinal insertion of the connector into the locking channel.