肢架輔具的使用對肢體行動不便的生活上是相當重要。本研究擬針對下肢障礙者所使用的腿部步行輔具進行探討及改良，並設計一新型步行輔具來改善其行走的步態。
本文的研究目標主要為設計一新型步行輔具，首先針對國內外現有下肢殘障步行輔具商品及專利作搜尋、整理、分類及比較。對於傳統腿部肢架進行探討，分析有無改進空間。並訪問下肢障礙者，整合他們所需之要求。再利用機構合成及分析原理，設計出便於平地行走及上下樓梯之下肢障礙的步行輔具。再透過電腦繪圖軟體建構實體模型、及部分零組件，最後匯入有限元素分析軟體做動態模擬測試，並將模擬所得之結果與受訪者所實驗之數據做比較。

Orthoses and auxiliaries are important to the people with lower limb disabled in their daily lives. The purpose of this study is to survey and discuss the existing walking auxiliary mechanism for the lower limb disabled people, and to design a new walking auxiliary mechanism to improve their walking gesture.
In order to develop a new auxiliary mechanism for the people with lower limb disabled, commercial orthoses and patents are colleted, analyzed, classified, and compared to each others. Several interviews with a lower limb disablement are arranged and understand what they need. After integrating all the collected information as the design input, theories of mechanism structure synthesis, dimension synthesis, mechanism analysis are utilized to develop a mechanism design of auxiliary for lower limb disabled people to walk, to go up and down the stair. The Pro-Engineering, a CAD software, is used for solid modeling and the Visual Nastran, a CAE software, is applied for motion simulation. The results of computer simulations of walking and climbing up stairs are compared to that of video taken from the interviewed people.

謝誌...................................Ⅰ
目錄...................................Ⅱ
圖目錄.................................Ⅲ
表目錄.................................Ⅴ
摘要...................................Ⅵ
Abstract...............................Ⅶ
第一章 緒論............................1
1.1 研究背景...........................1
1.2 文獻回顧...........................5
1.3 論文架構..........................15
第二章 步行輔具的介紹.................17
2.1 步行輔具之介紹....................17
2.2 步行輔具之運動機構................21
2.3 步態理論..........................24
第三章 步行輔具機構設計與動作設計.....29
3.1 研究方法與步驟....................29
3.2 儲能機構之設計....................34
3.3 新型機構之設計....................46
第四章 新型步行輔具之模擬與操作分析...57
4.1 模擬測試設定......................57
4.2 上樓梯之比較......................63
4.3 平地行走之比較....................69
第五章 結論與建議.....................75
參考文獻...............................78

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