Brake Piston Pushing Tool With Mechanical Linkage Repositioning
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Solution Overview
Problem
Conventional brake piston pushing tools are costly, prone to fluid deterioration, and require high precision assembly, leading to increased costs and difficulty in maintenance and repair.
Innovation Solution
A piston pushing tool with a simple structure, comprising two arm members connected by a pivot and two push members, allowing for stable and quick repositioning of pistons within the caliper, with a focus on durability and ease of maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hydraulic cylinder is used to push the piston, then the piston can be repositioned effectively, but the cost increases and the device becomes complex with fluid deterioration and leakage issues
Solution Approach 1:
The patent extracts and removes the hydraulic cylinder and fluid system from the piston pushing tool, replacing it with a purely mechanical linkage system. This eliminates fluid deterioration, leakage risks, and associated maintenance while maintaining effective piston repositioning capability through the arm member and push member mechanism
Solution Approach 2:
The patent replaces the hydraulic system with a mechanical system consisting of arm members connected by a pivot and push members. This mechanical substitution eliminates the need for fluid power transmission, reducing complexity and improving reliability while achieving the same piston repositioning function through mechanical leverage and direct contact forces
2Reliability
If high precision assembly is implemented to avoid fluid leakage, then reliability improves, but manufacturing cost and assembly complexity increase
Solution Approach 1:
The patent removes the fluid containment system entirely, eliminating leakage risks and the associated high precision sealing requirements. The mechanical linkage system uses simple pivot connections and direct push contacts that do not require precision sealing, thereby reducing manufacturing and assembly precision requirements while maintaining reliability
3Ease of manufacture
If conventional hand tools are used to reposition the piston, then cost is reduced, but the piston may be deformed or damaged
Solution Approach 1:
The patent introduces push members as intermediary elements between the mechanical linkage and the piston. These push members are specifically designed to contact and push the piston uniformly, distributing the force to prevent deformation while maintaining cost-effectiveness. The arm members transmit force through controlled mechanical motion, avoiding the uncontrolled impacting of hammers
Solution Approach 2:
The patent uses dynamically moving arm members connected by a pivot that can adjust their position and orientation. This allows the push members to maintain optimal contact with the piston throughout the pushing motion, applying force in the correct direction to reposition the piston without deformation, unlike static conventional tools
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 tool effectively repositions pistons without causing deformation, offers good durability and reliability, and is convenient to maintain, reducing costs and complexity compared to traditional hydraulic systems.
Implementation Method 1
two arm members being connected to each other by a pivot and being relatively movable
Implementation Method 2
two push members being movable with the two arm members to push the two objects, at least one of the two objects being a piston
Data Source
AI summary
A piston pushing tool is provided, wherein the piston pushing tool includes: two arm members being connected to each other, and being relatively movable to be close to each other or to be far away from each other; and two push members configured to be inserted between two objects and connected to the two arm members respectively, the two push members being movable with the two arm members to push the two objects, at least one of the two objects being a piston.