Caliper Brake Pad Spring Structure for Rattle Noise Suppression
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Solution Overview
Problem
Caliper brake pads often generate noise due to movement during braking, which is problematic and requires an improvement to minimize noise and maintain consistent load application.
Innovation Solution
A caliper brake pad spring with a spring mounting unit and spring pressing units is mounted on the caliper body, applying load to the brake pads by pressing them in a set position, using elastic restoring force to maintain contact and prevent rattle noise, and includes features like stoppers and weight-reducing holes for improved assembly and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional brake pad is used during braking, then braking force is generated, but noise is generated due to movement of the brake pad
Solution Approach 1:
The brake pad assembly is segmented into multiple components: the brake pad itself, a dedicated spring pressing unit, and a spring mounting unit. This segmentation allows the spring pressing unit to independently apply load and suppress noise while the brake pad focuses on friction braking, resolving the contradiction between noise reduction and braking reliability
Solution Approach 2:
A spring pressing unit is introduced as an intermediary component between the brake pad and the caliper body. This intermediary applies continuous elastic load to the brake pad, preventing unwanted movement and noise generation while maintaining the brake pad's primary braking function, thus resolving the noise-reliability contradiction
2Object-affected harmful factors
If the brake pad is pressed firmly to prevent movement, then noise is reduced, but the complexity of the brake device increases
Solution Approach 1:
Instead of uniformly complicating the entire brake device, the spring pressing unit is localized to specific positions where noise generation occurs. The spring mounting unit is integrated into the existing caliper body window, adding minimal structural complexity while effectively suppressing noise through targeted load application
Solution Approach 2:
The spring pressing unit applies preliminary elastic load to the brake pad before braking occurs, pre-positioning the brake pad to prevent movement. This preliminary action continuously suppresses noise without requiring additional complexity during the braking operation itself
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 caliper brake pad spring effectively minimizes noise and maintains consistent load on the brake pads during braking and release, preventing rattle noise and ensuring reliable operation by maintaining contact with the caliper body and supporting rebound force.
Implementation Method 1
spring pressing units extending from both sides of the spring mounting unit in one direction and configured to apply load to a brake pad by pressing the brake pad
Data Source
AI summary
Provided is a caliper brake pad spring applying load to a brake pad in a set position. A spring mounting unit is mounted on a window of a caliper body. Spring pressing units extend from both sides of the spring mounting unit in one direction to apply load to a brake pad by pressing the brake pad.