RESEARCH ON BICYCLE HYDRAULIC DISC BRAKES

• Main Authors: Chaur-Rong Huang, 黃朝榮
• Other Authors: Ching-Huan Tseng
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/29017324998387320527

碩士 === 國立交通大學 === 精密與自動化工程學程碩士班 === 91 === The purpose of this thesis is to design the bicycle hydraulic disc brake device according to following research steps： （a）Search patents, search keywords and term set up. （b）Select patents, establish patent database. （c）Analyse patents, apply patent analysis and patent map means. （d）Accomplish two conceptual designs, apply patent around and inventive design means. （e）Submit patents application. The functions and results of two conceptual design can be described as follows: （a）The multiplying power master cylinder of a bicycle hydraulic brake system：In the first brake step, the hydraulic fluid which flows into brake caliper has less fluid pressure and larger flow rate. Consequently, brake sensitivity is fast. However, in the second brake step, preceding hydraulic fluid has higher fluid pressure and less flow rate. As a result, brake force is increased, which can decrease brake safe distance, and brake vibration is avoided. （b）Returning and self-adjusting gap mechanism of a bicycle hydraulic disc brake lining：As the brake is released, the brake lining of a bicycle hydraulic disc brake element can return to its original position. In addition, as the brake is acted, the gap between the brake lining and the brake disc can be automatically adjusted to a fixed value.