自行車液壓碟式煞車之研究

Abstract

本論文之目的乃是依循下列研究步驟以設計自行車液壓碟式煞車裝置。 （a）專利檢索－檢索關鍵字與條件設定 （b）專利篩選－建立專利資料庫 （c）專利分析－應用專利摘要分析法與專利地圖法 （d）概念設計－應用專利迴避與創新法 （e）專利申請 本論文所提出的兩件概念設計，其功能/目的分述如下： （a）自行車之倍力式液壓煞車主缸 在第一階段煞車中，流入煞車鉗夾的液壓油壓力小，流率大，能使煞車靈敏；而在第二階段煞車中，流入鉗夾的液壓油壓力大，流率小，能使煞車力大，以縮短煞車安全距離且避免煞車的振動。 （b）自行車液壓碟煞來令片之回位與自動間隙調整機構 當煞車放鬆時，自行車液壓碟煞元件之煞車來令片不但能確實回復原位；且當煞車作用時，能自動調整其與煞車碟片間的間隙到一預設值。

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.