Fastening Device Clamp Angle Prevents Leakage in Compact Units
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Solution Overview
Problem
Conventional fastening devices for electric control and/or indicator members create leakage paths when used with compact contact and/or illumination units, preventing their integration into existing assemblies without modification.
Innovation Solution
A fastening device with a pivoting clamp configured at an angle between 110° and 160°, a yoke-shaped clamp with curved branches, and a plastic contact panel to prevent leakage by maintaining screw clearance and lengthening leakage paths, allowing compatibility with compact units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a conventional fastening device is used with a compact contact and/or illumination unit, then the assembly becomes more compact, but leakage paths are created between the clamping screw, metal lock, and cable outlets
Solution Approach 1:
A plastic insulating element is introduced as an intermediary between the metal clamping screw and the cable outlets, and between the metal lock and the cable outlets. This plastic element acts as a mediator that maintains the structural function while preventing electrical leakage paths, allowing the compact assembly to be safe for use.
Solution Approach 2:
The fastening device uses a composite structure combining metal components (clamp, lock) with plastic insulating elements. The plastic material is strategically positioned to provide electrical insulation while maintaining mechanical fastening function, creating a composite solution that addresses both compactness and leakage prevention.
2Adaptability or versatility
If the clamp is configured with a specific angle between 110° and 160°, then compatibility with compact units is achieved, but the clamp structure becomes more complex
Solution Approach 1:
The clamp angle is changed from a standard configuration to a specific range between 110° and 160°. This parameter change allows the clamp to accommodate compact contact and/or illumination units while maintaining proper clearance from cable outlets, achieving compatibility without requiring complete redesign of the clamp structure.
Data Source
AI summary
A fastening device for an electric control and/or indicator member, which includes a base, a fastening clamp fitted pivotably on the base about a first axis, the clamp including at least one branch having a free end designed to form at least a first bearing point against a wall, an element hinged about a second axis and interacting with the clamp to cause it to pivot about the first axis, a clamping screw for controlling the pivoting of the clamp, the clamp being configured in such a way that a first plane including the first axis and the second axis and a second plane including the first axis and the first bearing point form an angle of between 110° and 160°.