Brake Pad Liner Return Geometry for Uniform Pad Restoration
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Solution Overview
Problem
Conventional brake pad liners fail to generate a uniform return force when the brake pad is released, leading to inconsistent braking performance due to varying pressurization positions and elastic restoring forces.
Innovation Solution
A pad liner design featuring V-shaped return parts with stiffness reinforcement and point contact protrusions, which provide a consistent return force by guiding the brake pad back to its original position through elastic deformation, ensuring uniform pressurization and stable restoration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the return part pressurizes the brake pad using elastic restoring force, then the brake pad is returned to the original position, but the pressurization position may be changed leading to non-uniform return force
Solution Approach 1:
The return part is designed with a specific V-shaped configuration where the first and second return parts are positioned to contact the brake pad at the same point. This local geometric arrangement ensures that the elastic restoring force is applied uniformly to a specific location on the brake pad, resolving the issue of varying pressurization positions while maintaining the elastic restoration function.
2Stability of the object's composition
If the clearance between first and second return parts increases away from return connection part, then elastic deformation is enabled, but structural stability may be compromised
Solution Approach 1:
The return part employs a V-shaped geometric configuration with curved surfaces instead of straight lines. This curvature design allows the first and second return parts to elastically deform when the brake pad is pressed, while the overall V-shape maintains structural stability. The curved geometry enables controlled elastic deformation away from the return connection part without compromising the structural integrity.
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 pad liner generates a uniform return force, ensuring consistent braking performance by maintaining point contact and reinforcing stiffness, thereby stabilizing the elastic restoration of the brake pad to its original position.
Implementation Method 1
When an external force is applied to the brake pad, the second return part may be elastically deformed while moved toward the first return part. When the external force is removed from the brake pad, the second return part may provide a return force to the brake pad while pressurizing the same point of the brake pad.
Data Source
AI summary
A pad liner for a brake apparatus may include: a body part brought into contact with a torque member; a pair of insertion parts connected to the body part such that a part of the torque member is inserted into the insertion parts; a pair of guide parts connected to the pair of insertion parts, respectively, and configured to guide a brake pad; a pair of support parts connected to the pair of guide parts, respectively, and configured to support the brake pad; and a pair of return parts connected to the pair of insertion parts, respectively, located on facing sides of the insertion parts, and configured to provide a return force to the same point of the brake pad when the brake pad is moved.