U-Shaped Hybrid Nut Anti-Torsion and Segmented Removal
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Solution Overview
Problem
Existing clip nuts face issues with excessive rigidity, difficulty in positioning and removal, limited interchangeability due to specific thickness ranges, and vulnerability to torsional forces during screw tightening.
Innovation Solution
A C-shaped nut with a retaining claw, bottom rear flange, side stops, and anti-torsion mechanism, featuring a conical or spherical threaded cylinder or helical single thread, allowing easy installation, removal, and improved elastic behavior, along with enhanced rigidity and anti-rotation functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the nut is made rigid to maintain structural stability, then structural stability is improved, but ease of removal and positioning deteriorates
Solution Approach 1:
The nut is divided into a fixed lower base and a movable upper strip that can be independently manipulated. The upper strip contains the thread and can be separated from the lower base during removal operations, allowing the nut to be detached without requiring complete disassembly of the entire structure.
Solution Approach 2:
A retention claw acts as an intermediary element between the upper strip and the panel. This claw can be engaged by extraction tools to facilitate removal while the nut remains structurally intact during normal operation.
2Manufacturing precision
If the nut is designed for specific panel thickness ranges, then manufacturing precision is improved, but adaptability deteriorates
Solution Approach 1:
The nut is designed to function across multiple panel thickness ranges by incorporating adjustable elastic elements and a modular structure. The same nut design can accommodate different thicknesses within a broad range, eliminating the need for multiple specialized nut types for different panel specifications.
3Ease of operation
If the upper strip is made elastic to facilitate mounting, then ease of operation is improved, but strength against torsional forces deteriorates
Solution Approach 1:
Different regions of the upper strip have different mechanical properties. The portions requiring flexibility for mounting are made more elastic, while the threaded region and connection points are reinforced to resist torsional forces. This localized differentiation of material properties allows the upper strip to exhibit both elasticity and strength where needed.
Solution Approach 2:
The upper strip incorporates composite construction with zones of varying material composition or structural density. This allows the strip to display elastic behavior in mounting regions while maintaining high strength in load-bearing areas, effectively combining the benefits of both material characteristics.
4Device complexity
If the nut structure is simplified to reduce complexity, then device complexity is reduced, but reliability against deformation deteriorates
Solution Approach 1:
The nut is segmented into distinct functional components (lower base, upper strip, retention claw) that can be independently optimized. This segmentation allows each component to be designed for its specific function with appropriate complexity, while the overall assembly remains relatively simple and easy to manufacture.
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 enables easier mounting and removal, improved adaptability to various panel thicknesses, and enhanced resistance to torsional forces during screw tightening, making the nut more versatile and effective.
Implementation Method 1
the fold and the rigidity or elasticity thereof acting as a tensioning spring during fixing to the panel
Implementation Method 2
an approximately conical or spherical tube having a multiple threading with or without a self-locking property
Implementation Method 3
a single thread formed by a helical profile in the upper strip of the clip
Data Source
AI summary
A NUT WITH A C-SHAPED PROFILE, of the type formed by a punched metal sheet folded onto itself for fixing onto a panel, wherein one of the arms has a hole for the arrangement of a screwed device with at least one thread and wherein the other arm, which is aligned with the axis of the preceding hole, has another hole for receiving the nut tightening screw, the upper base being provided with incisions which define horizontal connecting portions separated from the body of the upper base and longitudinal connecting portions which form an extension of the former and which join together the upper base and lower base.