Adjustable Bicycle Brake Caliper Base for Rotor Diameter Compatibility

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Solution Overview

Problem

Existing bicycle brake caliper systems lack the ability to adjust the relative position between the brake caliper and the brake disc rotor in the radial direction, making them incompatible with brake disc rotors of varying diameters, which can affect braking performance and compatibility.

Innovation Solution

A bicycle-brake-caliper attachment structure featuring a base member with adjustable coupling portions and through-holes that allow the brake caliper to be attached to the bicycle frame in multiple orientations, enabling the adjustment of the relative position between the brake caliper and the brake disc rotor in the radial direction, accommodating different rotor diameters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed brake caliper attachment structure is used, then the structure is simple and easy to manufacture, but it cannot accommodate brake disc rotors of varying diameters

Engineering Contradiction:

Improvecompatibility with different rotor diametersVSAvoidcomplexity of attachment structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The base member incorporates adjustable coupling portions that allow the relative position between the brake caliper and brake disc rotor to be adjusted in the radial direction. This dynamic adjustment capability enables the brake system to accommodate different rotor diameters while maintaining a relatively simple overall structure.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The base member is designed with multiple coupling portions and through-holes that serve dual functions: attaching the brake caliper to the bicycle frame and adjusting the radial position to accommodate different rotor diameters. This multi-functionality increases adaptability without proportionally increasing structural complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If the brake caliper position is fixed relative to the rotor, then the attachment structure is simple, but braking performance deteriorates with varying rotor sizes

Engineering Contradiction:

Improvebraking performance consistencyVSAvoidcomplexity of position adjustment mechanism

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The adjustable coupling portions enable dynamic repositioning of the brake caliper relative to the rotor, ensuring consistent braking performance across different rotor diameters. The adjustment mechanism maintains reliability by allowing precise positioning while keeping the overall structure relatively simple.

Inventive Principle:

Principle #15Dynamics

3Adaptability or versatility

If multiple orientations are not supported, then the attachment structure is simpler, but versatility across different bicycle configurations is reduced

Engineering Contradiction:

Improvecompatibility with different bicycle configurationsVSAvoidcomplexity of multi-orientation attachment

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The base member incorporates multiple through-holes and coupling portions that enable attachment in multiple orientations while maintaining a unified structural design. This multi-functional approach increases versatility for different bicycle configurations without requiring entirely separate attachment mechanisms for each orientation.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS10427751B2Bicycle-brake-caliper attachment structure

Publication Date: 2019.10.01 SHIMANO INC

AI summary

A bicycle-brake-caliper attachment structure comprises a base member. The base member is configured to be coupled to a brake caliper configured to apply a braking force on a brake disc rotor configured to be rotatable about a rotational axis. The base member is configured to be attached to a bicycle frame such that relative position between the rotational axis of the brake disc rotor and the brake caliper is adjustable in a radial direction of the brake disc rotor.