Bicycle Disc Brake Pad With Integrated Vibration Damping

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Solution Overview

Problem

Bicycle disc brake pads experience vibrations during braking, which can alter the positioning of the friction-wearing material and reduce braking efficiency.

Innovation Solution

Incorporating a vibration damping element made of metallic material, preferably with anti-rust and rubber layers, attached to the support frame to absorb vibrations independently of the friction-wearing material, ensuring maximum efficiency of both damping and braking actions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a vibration damping element is added to the pad, then vibration absorption is improved, but device complexity increases

Engineering Contradiction:
Improvevibration absorptionVSAvoidpad structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The vibration damping element is integrated into the pad structure by attaching it to the support frame, merging the vibration damping function with the existing pad components. This combination approach improves vibration absorption while minimizing the increase in device complexity through functional integration rather than adding completely separate systems.

Inventive Principle:
Principle #5Merging (Combining)

2Strength

If the element made of friction-wearing material is made to interpenetrate the support frame, then resistance to shearing stresses is improved, but manufacturing complexity increases

Engineering Contradiction:
Improveresistance to shearing stressesVSAvoidpad assembly
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The element made of friction-wearing material is designed to interpenetrate the support frame during the manufacturing process, creating mechanical interlocking before final assembly. This preliminary integration of the friction material into the support frame structure enhances resistance to shearing stresses while the interlocking design facilitates easier assembly by providing self-aligning features.

Inventive Principle:
Principle #10Preliminary action

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 vibration damping element effectively absorbs vibrations, preventing them from interfering with braking performance and maintaining efficiency even in contact with mud or water, while the friction-wearing material's interpenetration into the support frame enhances resistance to shearing stresses.

Implementation Method 1

a vibration damping element (40) associated with a second face (10b) of the support frame (10), opposite to said first face (10a)

Methodology Applied
Scientific EffectVibration damping: Damping

Implementation Method 2

an element made of friction-wearing material (20) associated with a first face (10a) of the support frame (10) configured to slide on the brake disc during braking, generating some noise

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP3357805B1Pad for a bicycle disc brake
Publication Date: 2024.09.11 CAMPAGNOLO SRL
  • EP3357805B1 patent drawingFigure 1
  • EP3357805B1 patent drawingFigure 2
  • EP3357805B1 patent drawingFigure 3

AI summary

The invention relates to a pad (1) for a bicycle disc brake. The pad (1) comprises a support frame (10) and an element made of friction-wearing material (20) as well as a vibration damping element (40) associated with the support frame (10).