Telescopic Brake Pad Spring Assembly for Residual Drag Reduction
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Solution Overview
Problem
Existing disc brake systems face challenges in avoiding residual drag between the brake disc and brake pads, leading to excessive wear and reduced efficiency, and require improvements in ease of disassembly and assembly during brake pad replacement.
Innovation Solution
A brake pad kit with an elongated spring assembly, comprising an elongated spring enclosed by a first part with a tubular portion and a telescopically arranged second part, which compresses the spring to maintain the brake pads apart, facilitating easy installation and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the brake pads remain in contact with the brake disc after the brake has been released, then the braking force is continuously applied, but this results in excessive wear and reduced efficiency
Solution Approach 1:
The patent extracts the spring assembly from the traditional brake pad structure, positioning it externally on the non-braking surface. This allows the spring to independently manage the separation force without interfering with the braking contact, effectively removing the source of residual drag while maintaining braking performance
Solution Approach 2:
The spring assembly acts as an intermediary element between the brake pad and the disc, providing a controlled separating force that prevents direct continuous contact. The spring mediates the interaction by storing and releasing elastic energy to maintain proper clearance without requiring continuous mechanical intervention
2Reliability
If a spring assembly is used to urge the brake discs apart, then residual drag is reduced, but the complexity of assembly and disassembly increases
Solution Approach 1:
The spring assembly is segmented into distinct functional parts: the elongated spring, the first part with holder, and the second part with pushing surface. This segmentation allows each component to be independently positioned and installed, simplifying the overall assembly process while maintaining the drag-reduction function
Solution Approach 2:
The spring assembly is positioned in a dimension perpendicular to the braking surface, extending past the brake pad rather than lying flat against it. This dimensional change allows the spring to apply separating force without interfering with the braking contact area, and facilitates access during assembly and disassembly operations
3Reliability
If the spring assembly extends past the brake pad in a perpendicular direction, then the brake pads are maintained apart effectively, but the space requirement increases
Solution Approach 1:
The second part of the spring assembly is telescopically arranged within the first part, creating a nested configuration. This nesting allows the spring assembly to extend when needed for pad separation while retracting to minimize space occupation when not in use, effectively solving the space requirement issue
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 reduces residual drag between the brake disc and brake pads, enhancing brake efficiency and ease of maintenance by simplifying the assembly and disassembly processes.
Implementation Method 1
an elongated spring assembly comprising: an elongated spring; an elongated first part having a first end portion and a second end portion, and enclosing the spring between the first end portion and the second end portion
Implementation Method 2
the elongated spring of the spring assembly may be a compression coil spring. A technical benefit may include to provide a compact elastic member that makes the elongated spring assembly relatively easy to install. Furthermore, a compression coil spring provides for a favorable combination of a long stroke and a strong expanding force
Data Source
AI summary
A brake pad kit comprising an elongated spring assembly including a spring; a first part having a first end portion and a second end portion, and enclosing the spring between the first end portion and the second end portion; and a second part telescopically arranged in relation to the first part, the second part having a first end portion and a second end portion, and being configured to compress the spring enclosed by the first part when the second end portion of the second part is pushed towards the first end portion of the first part; a first brake pad member comprising a holder configured to hold the first end portion of the first part of the spring assembly; and a second brake pad member having a spring pushing surface portion directly opposite the holder of the first brake pad member.