Brake Piston Pushing Tool With Worm Drive Mechanism
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Solution Overview
Problem
Existing brake maintenance tools face challenges in effectively pushing the piston into the caliper housing when the hydraulic system fails, leading to difficulties in brake assembly and maintenance.
Innovation Solution
A mechanical brake piston pushing tool incorporating a worm drive mechanism that manually pushes the piston into the caliper housing, utilizing a worm drive and brake mechanism with a caliper housing, piston, and anvil to facilitate piston movement during maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hydraulic system is used to push the piston into the caliper housing, then the piston can be pushed efficiently under normal conditions, but the system becomes unreliable when the hydraulic system fails
Solution Approach 1:
The patent introduces a manual worm drive mechanism as an intermediary tool to push the piston when the hydraulic system fails. This manual mechanism serves as a backup intermediary device that can perform the same function (pushing the piston) when the primary hydraulic intermediary fails, thereby improving reliability without requiring complete system redesign
Solution Approach 2:
The maintenance tool is designed with pre-positioned components including the worm drive, sector gear, and piston pusher assembly ready for immediate deployment. The tool includes pre-configured mounting features that allow it to be attached to the caliper housing before attempting piston insertion, ensuring that the backup mechanical system is ready to act immediately when hydraulic failure occurs
2Reliability
If a manual worm drive mechanism is added to push the piston when hydraulic system fails, then the reliability of piston insertion is improved, but the device complexity increases
Solution Approach 1:
The patent merges the manual worm drive mechanism with the existing hydraulic brake maintenance tool by integrating the sector gear into the same housing structure. The worm drive shaft, sector gear, and piston pusher are combined into a single integrated assembly that works together with the hydraulic components, reducing overall device complexity compared to having separate independent systems
Solution Approach 2:
The maintenance tool is designed with multi-functionality to handle both normal hydraulic operation and backup manual operation. The piston pusher assembly can be actuated by either hydraulic pressure or manual worm drive rotation, making the tool universal for both operational modes. This multi-functionality reduces the need for entirely separate tools for different scenarios
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 efficient piston insertion into the caliper housing, ensuring effective brake assembly and maintenance operations even when the hydraulic system is non-functional, thereby simplifying the process and ensuring proper brake function.
Implementation Method 1
The worm drive is a mechanical device that pushes the piston into the caliper during maintenance activities on the brake mechanism
Data Source
AI summary
The brake piston pushing tool is a mechanical device. The brake piston pushing tool comprises a worm drive and a brake mechanism. The brake mechanism is a mechanical device used to slow and stop the motion of a vehicle. The brake mechanism is a well-known and documented device. The brake mechanism further comprises a caliper housing, a piston, and an anvil. The anvil attaches to the caliper housing such that a space is formed between the caliper housing and the anvil. The piston installs in the caliper housing such that the piston slides into and out of the space formed between the caliper housing and the anvil. The worm drive is a mechanical device that pushes the piston into the caliper during maintenance activities on the brake mechanism.