Caliper Brake Mounting Bracket Stabilization

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Solution Overview

Problem

Caliper brakes suffer from uneven wear and noise due to 'drooping' and twisting caused by inadequate mounting mechanisms, leading to inconsistent braking forces and wear patterns.

Innovation Solution

A centrally mounted bracket with spacers extending from both sides to stabilize the mounting bracket, preventing deflection and twisting, and utilizing a combination of bolts and nuts with spacers to secure the stator assemblies and stationary plate, ensuring even distribution of braking forces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If minimal clearance is provided between the mounting bracket and brake components, then the brake assembly has freedom of motion relative to the mounting bracket, but this causes the brake assembly to droop and results in uneven brake pad wear and high pitch noise

Engineering Contradiction:
Improvefreedom of motionVSAvoidbrake pad wear uniformity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent introduces spacers as intermediary elements between the mounting bracket and the brake components (stator assemblies and stationary plate). These spacers act as mediators that maintain proper clearance while preventing direct contact that would cause drooping. The spacers distribute forces evenly and maintain stable positioning, thereby eliminating the drooping issue and ensuring uniform brake pad wear while preserving necessary freedom of motion.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If the mounting bracket is located on one side of the brake assembly, then it simplifies the mounting structure, but this causes twisting of the brake assembly during braking due to dynamic rotating forces

Engineering Contradiction:
Improvemounting structureVSAvoidbrake assembly stability
Core Design Contradiction:
Device complexityVSStability of the object's composition

Solution Approach 1:

The patent employs asymmetric mounting by positioning the mounting bracket on one side of the brake assembly rather than symmetrically. This asymmetric configuration, combined with strategically placed spacers, creates a stable mounting structure that resists twisting forces during braking. The spacers are positioned to counterbalance the dynamic rotating forces, preventing the twisting and untwisting motion that would otherwise occur with asymmetric mounting.

Inventive Principle:
Principle #4Asymmetry

3Reliability

If the mounting bracket is centrally mounted with spacers, then twisting and drooping are prevented, but the device complexity increases due to additional components

Engineering Contradiction:
Improvebrake performance consistencyVSAvoidmounting mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the mounting mechanism into distinct functional components: the central mounting bracket, multiple spacers (including inner and outer spacers), and mounting bolts. This segmentation allows each component to perform its specific function - the bracket provides central mounting, the spacers maintain clearance and distribute forces, and the bolts secure the assembly. While this increases the number of parts, it significantly improves reliability by eliminating drooping and twisting, ensuring consistent brake performance.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS8408368B2Caliper brake
Publication Date: 2013.04.02 LAMBERT BRAKE CORPORATION
  • US8408368B2 patent drawing
  • US8408368B2 patent drawing
  • US8408368B2 patent drawing

AI summary

A caliper brake including a mounting bracket adapted to be secured to a vehicle. The mounting bracket includes a pair of laterally spaced holes, and a mounting bolt is received through each hole. Each bolt includes a head and a threaded portion on opposing ends, and a nut is received on each threaded portion. An inner spacer extends between the mounting bracket and the nut on each bolt, and an outer spacer extends between the mounting bracket and the head on each bolt.