Pivoting Master Link Tool for Chain Connection and Removal
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Solution Overview
Problem
The existing methods for removing and connecting master links in roller chain assemblies are inconvenient and costly, requiring specialized tools like chain breakers and master link pliers.
Innovation Solution
A chain master link tool with pivotally coupled levers that create a connection space for linking and a removal space for dislinking, allowing for the secure connection and easy removal of master links without the need for additional tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If chain breaker and master link pliers are used for removal and connection, then the master link can be removed and connected, but the cost increases and convenience decreases
Solution Approach 1:
The patent combines the functions of chain breaker and master link pliers into a single integrated tool. The tool includes a body with a receiving space that can accommodate both the master link and chain, breaking bars for removing outer plates, and pressing portions for locking/unlocking the master link. This merging eliminates the need for multiple separate tools, reducing device complexity while maintaining full functionality for both removal and connection operations.
Solution Approach 2:
The tool is designed as a universal device that performs multiple functions: it can remove outer plates from chain links, connect master links to roller chain assemblies, and unlock/master link positioning. The receiving space can accommodate different components (master link, chain), and the pressing portions can engage with different parts of the master link mechanism. This multi-functionality allows a single tool to replace multiple specialized tools, improving ease of operation.
2Reliability
If chain breaker and master link pliers are prepared, then the master link removal and connection can be performed, but the cost increases
Solution Approach 1:
The patent merges the functionality of expensive chain breaker and master link pliers into a single tool, reducing the total cost of equipment while maintaining reliable performance. The integrated design includes all necessary components (breaking bars, pressing portions, receiving space) to perform both removal and connection operations reliably, eliminating the need to invest in multiple separate specialized tools.
3Ease of operation
If a single tool is used for both removal and connection, then the cost decreases and convenience improves, but the tool structure becomes more complex
Solution Approach 1:
The tool is segmented into distinct functional components: a body with receiving space, breaking bars for plate removal, and pressing portions for locking/unlocking. Each component is designed to perform a specific function, and the segmentation allows for modular construction that manages structural complexity while providing comprehensive functionality. The breaking bars can be positioned and removed independently, and the pressing portions are designed to engage specific parts of the master link mechanism.
Solution Approach 2:
The tool incorporates dynamic elements including movable breaking bars that can be positioned as needed, and pressing portions that can engage and disengage from the master link. The tool transitions between different operational states (removal mode and connection mode) through the movement and positioning of its components, allowing a single tool to adapt to different functions without requiring complex permanent structures for each 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
Facilitates the connection and removal of master links efficiently and cost-effectively, eliminating the need for expensive tools and simplifying the process.
Implementation Method 1
a first lever (10) and a second lever (20) pivotally and releasably coupled together
Implementation Method 2
master link pliers to apply force to pull two opposing links of the master link from an unlocked position into a locked position
Data Source
AI summary
A chain master link tool includes a first lever and a second lever pivotally and releasably coupled together. Each of the first and second levers include a first working portions and a second working portion. The first and second levers are pivotal to an extended position in which the first working portions face oppositely and are disposed apart and cooperatively delimit a connection space therebetween for connection of a master link with a roller chain assembly and the second working portions face oppositely and are disposed apart and cooperatively delimit a removal space therebetween for removal of the master link from the roller chain assembly respectively.