Disc Brake Pad Swing Adjustment Mechanism for Heat Spot Suppression
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Solution Overview
Problem
Conventional disc brake pads face issues with heat spot formation and heat cracks on discs due to thermal expansion and uneven surface pressure distribution, leading to reduced disc lifetime and increased processing complexity.
Innovation Solution
A disc brake pad with a swing adjustment mechanism that supports lining members to adjust their position relative to each other, distributing pressure evenly and reducing frictional load resistance, eliminating the need for complex spherical surface processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pivoting support mechanism with spherical caps sliding against shell-shaped notches is used to equalize surface pressure, then heat spot formation is suppressed, but the device complexity and manufacturing difficulty increase due to extensive spherical surface processing
Solution Approach 1:
The patent extracts and eliminates the complex spherical cap and shell-shaped notch components from the pivoting support mechanism. Instead of using spherical surfaces that require difficult processing, the invention uses a simplified pivot support structure with plain surfaces, removing the problematic elements while retaining the pressure equalization function.
Solution Approach 2:
The invention inverts the approach by not trying to create complex spherical sliding surfaces, but rather by using a simplified pivot mechanism that achieves the same pressure equalization effect through a different principle - allowing the lining member to pivot on a simple axis rather than requiring spherical contact surfaces.
2Manufacturing precision
If multiple pivoting support mechanisms with spherical caps are used to adjust lining member positions, then surface pressure equalization is achieved, but the manufacturing time and processing steps increase significantly
Solution Approach 1:
The patent removes the spherical cap components and shell-shaped notches from the manufacturing process. The simplified pivot support mechanism uses standard cylindrical or planar surfaces that can be manufactured with conventional machining operations, eliminating the need for complex spherical surface grinding or polishing operations.
Solution Approach 2:
The invention changes the geometric parameters of the pivot support from spherical surfaces requiring precise curvature control to simple cylindrical or planar surfaces with standard tolerances. This parameter change dramatically reduces manufacturing complexity and production time while maintaining the pressure equalization function.
3Reliability
If spherical caps are used in the pivoting support mechanism to enable lining member adjustment, then pressure equalization is achieved, but frictional load resistance increases impairing smooth operation
Solution Approach 1:
The patent extracts and eliminates the spherical cap sliding contact from the mechanism. Instead of relying on spherical surfaces that generate high friction during sliding, the invention uses a pivot support with simple rotational motion about a fixed axis, minimizing frictional resistance and enabling smooth operation.
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 solution effectively suppresses heat spot formation and heat cracks, simplifies processing, and ensures smooth operation by evenly distributing pressure across the disc brake pad, enhancing disc lifetime and operational efficiency.
Implementation Method 1
a compression coil spring (25)
Implementation Method 2
frictional heat
Implementation Method 3
thermal expansion such as phase transformation, which is a change in crystal structure
Data Source
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AI summary
The present invention provides a disc brake pad (10) that can suppress the formation of heat spots on a disc and suppress the formation of heat cracks, as well as can reduce the number of processing steps and can enable the smooth implementation of a function by which the force of pressing against the frictional braking face is adjusted for multiple lining members (21) relative to each other. First swing adjustment members (28, 29) each swingably support a plurality of lining members (21). A swing adjustment mechanism (22) supports the lining members (21) such that the position of the lining members (21) in the direction of pressing against the frictional braking face can be adjusted for the lining members (21) relative to each other by the swinging of the first swing adjustment members (28, 29). The load supporting member (23) comes into contact with the lining members (21) and supports the load parallel to the frictional braking face that is generated due to frictional braking force.