Disc Brake Caliper Adaptor Layout for Lower Rotational Force
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Solution Overview
Problem
The existing structure coupling the disc brake caliper and vehicle body of human-powered vehicles is complex, leading to inefficiencies and potential structural weaknesses.
Innovation Solution
A caliper adaptor with an axle coupling portion, caliper mounting portion, and frame coupling portion is introduced, allowing for simplified integration with the hub axle and vehicle body, with specific distances and orientations to reduce rotational forces and enhance flexibility in arranging the disc brake caliper.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the disc brake caliper is mounted directly to the vehicle body using fasteners, then the braking function is achieved, but the structure becomes complex and potentially weak
Solution Approach 1:
The patent introduces a caliper adaptor as an intermediary component between the hub axle and the disc brake caliper. This adaptor includes a first coupling portion that connects to the hub axle and a second coupling portion that mounts the disc brake caliper, thereby simplifying the overall coupling structure while maintaining structural strength through proper force distribution.
2Volume of moving object
If the frame coupling portion is positioned close to the axle coupling portion, then the device size is reduced, but rotational force increases on the frame coupling portion
Solution Approach 1:
The patent positions the frame coupling portion radially outwardly from the axle coupling portion, utilizing the radial dimension to increase the moment arm. This spatial arrangement reduces rotational force on the frame coupling portion while maintaining a compact overall structure, as the force distribution is optimized through proper geometric positioning.
3Force
If the caliper mounting portion is positioned radially outwardly of the axle coupling portion, then rotational force on the frame coupling portion is reduced, but the arrangement flexibility is limited
Solution Approach 1:
The caliper adaptor is designed with universal coupling portions that can accommodate different disc brake rotor sizes and configurations. The radial positioning of the frame coupling portion creates a robust mounting structure that works with various caliper types, providing both force reduction and arrangement flexibility through a single standardized component design.
Data Source
AI summary
A caliper adaptor for a disc brake caliper of a human-powered vehicle comprises an axle coupling portion, a caliper mounting portion, and a frame coupling portion. The axle coupling portion is configured to be coupled to a hub axle of a hub assembly of the human-powered vehicle. The hub axle extends along a rotational axis of the hub assembly. The caliper mounting portion is configured to mount the disc brake caliper. The caliper mounting portion includes a caliper mounting hole. The caliper mounting hole has a caliper-mounting center axis. The caliper-mounting center axis extends along a reference plane perpendicular to the rotational axis. The frame coupling portion is configured to be coupled to a vehicle body of the human-powered vehicle. The frame coupling portion is at least partially provided radially outwardly of the caliper mounting portion relative to the rotational axis.