Dual-Plier Circlip Tool with Torsion Spring
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Solution Overview
Problem
Existing circlip pliers require separate tools for installing and removing external and internal circlips, necessitating the carrying of multiple tools for different types of fasteners.
Innovation Solution
Design of circlip pliers with a first and second plier, each featuring external and internal connection portions, pivot portions, and press portions, allowing for insertion into grip holes of both external and internal circlips, with a torsion spring and metal reinforce members for structural strength and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate tools are used for external and internal circlips, then each tool can be optimized for its specific function, but the user must carry multiple tools
Solution Approach 1:
The patent combines two separate plier tools into a single integrated tool. The first plier handles external circlips while the second plier handles internal circlips, both within one tool body. This merging eliminates the need to carry multiple separate tools while maintaining optimized functionality for each circlip type.
Solution Approach 2:
The patent creates a universal tool that performs multiple functions through its dual-plier design. The first and second pliers with different connection portions enable the single tool to work with both external and internal circlips, providing multi-functionality without compromising specialization for each circlip type.
2Ease of operation
If a single tool is designed to handle both external and internal circlips, then tool portability improves, but the structural complexity of the tool increases
Solution Approach 1:
The patent segments the tool into distinct first and second plier components, each with specialized connection portions for different circlip types. This segmentation allows each component to be optimized independently while being integrated into a single tool, managing structural complexity through modular design.
Solution Approach 2:
The patent resolves structural complexity by arranging the first and second pliers in a spatial configuration where they share common components (pivot portion, press portion, torsion spring). This dimensional arrangement allows multiple functions to coexist without linearly increasing overall complexity, as components serve dual purposes across different plier functions.
3Adaptability or versatility
If the first and second pliers have different connection portion spacings, then compatibility with different circlip types is achieved, but the mechanism requires additional components to adjust distances
Solution Approach 1:
The patent implements self-service through the torsion spring mechanism that automatically adjusts the distances between connection portions. When the press portion is actuated, the torsion spring provides the necessary force to change the spacing between first/second external connection portions and first/second internal connection portions, eliminating the need for manual adjustment mechanisms or additional complex components.
Solution Approach 2:
The patent employs dynamic adjustment of the connection portion spacings through the torsion spring and press portion mechanism. The distances between connection portions are not fixed but can change dynamically based on the operational state, allowing the tool to adapt to different circlip geometries without requiring multiple fixed-configuratio
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
Enables the installation and removal of both external and internal circlips with a single tool, simplifying the process and enhancing convenience by allowing a single action to expand or contract the circlips as needed.
Implementation Method 1
A torsion spring is disposed between the first and second pivot portions and is abutted against the first and second pliers
Data Source
AI summary
Circlip pliers comprise a first plier and a second plier. The first plier is provided with an external connection portion, an internal connection portion, and a pivot portion located between the external connection portion and the internal connection portion. The second plier is provided with an external connection portion, an internal connection portion, and a second pivot portion located between the second external connection portion and the second internal connection portion. The external connection portions are adapted to insert into grip holes in an external circlip. The internal connection portions are adapted to insert into grip holes in an internal circlip. The first and second pivot portions are pivotally connected with each other.