Spring Plate Clip Curved Structure for Clamping Force
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Solution Overview
Problem
Conventional clips with linear torsion springs or spring plates suffer from insufficient clamping force due to slack in the torsion spring or dispersed stress in the spring arms, leading to inadequate elastic tension for securely holding objects.
Innovation Solution
A clip design featuring a restoring elastic member with two restoring arms and a curved structure between them, which increases the spring force and elastic tension by disrupting continuous stress distribution, using a positioning portion with annular shape and extending arms with holes for engaging members to enhance clamping strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a linear torsion spring structure is used to generate spring force, then the clip can clamp objects, but the spring force becomes insufficient due to slack in the torsion spring
Solution Approach 1:
The patent changes the spring mechanism from a linear torsion spring to a spring plate with curved sections, altering the geometric parameters to eliminate slack and maintain consistent spring force throughout the clamping cycle
Solution Approach 2:
The patent introduces curved sections in the spring plate structure, using curvature to store and release elastic energy more effectively, eliminating the slack problem inherent in linear torsion springs
2Duration of action of moving object
If a spring plate with two long spring arms is used to replace the torsion spring, then the spring force can exist for a long time, but the stress becomes too dispersed resulting in insufficient elastic tension
Solution Approach 1:
The patent optimizes the geometric parameters of the spring plate, specifically the length and curvature radius of the curved sections, to concentrate stress in critical areas while maintaining long-duration spring force
Solution Approach 2:
The patent creates different structural characteristics in different parts of the spring plate, with curved sections designed to concentrate stress and generate high elastic tension where needed, while other parts maintain the overall force duration
3Duration of action of stationary object
If the spring plate has long spring arms to maintain spring force, then the structure can sustain force for extended periods, but the position where force is exerted moves closer to the center point causing stress dispersion
Solution Approach 1:
The patent uses curved sections with optimized radius to create stress concentration zones that maintain high stress levels even as the spring arms extend, preventing stress dispersion while sustaining force duration
Solution Approach 2:
The patent divides the spring plate into distinct functional sections including curved sections for stress concentration and straight sections for force transmission, allowing each segment to optimize its specific function
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 clip achieves a stronger clamping force and improved elastic tension, ensuring a secure hold on objects by concentrating and accumulating spring force through the curved structure, addressing the deficiencies of previous designs.
Implementation Method 1
a curved portion formed between the restoring arm and the positioning portion with being curved towards an axial direction of the positioning portion
Data Source
AI summary
A clip of spring plate type includes a first pressing plate, a second pressing plate and a restoring elastic member. The first pressing plate includes two first lateral plates. Each of the first lateral plates has a first axial hole. The second pressing plate is assembled with the first pressing plate. The second pressing plate includes two second lateral plates. Each of the second lateral plates has a second axial hole corresponding to the first axial hole. The restoring elastic member is disposed between the first pressing plate and the second pressing plate. The restoring elastic member has a positioning portion from which two restoring arms extend. A curved portion is formed between the restoring arm and the positioning portion. The curved portion obstructs the transmission of stress so that a larger elastic force is accumulated in the restoring arm.