本研究探討具手杖與椅子雙重功用之行動輔具的可變手杖機構的設計。本研究重點在於可變手杖的機構設計與桿件強度設計。本研究首先探討並整理出椅架及腳桿尺寸關係式;接著依據人體工學與手杖高度標準規範設立限制條件與目標函數,再將求得設計變數代回椅架及腳桿尺寸關係式,整理後得到桿件最佳運動尺寸;進而依據運動尺寸建立手杖椅機構實體幾何模型,再透過有限元素分析軟體ANSYS Workbench 模擬與分析手杖椅結構應力與變形量變化,求的桿件的強度尺寸,以確保手杖椅結構安全性與可靠度。本研究成果是設計三款符合運動需求的桿件運動尺寸及符合結構應力與變形量需求的強度尺寸之可變手杖機構。
Dual purpose cane has double functions of cane and chair. The purposes of the study are mechanisms and machine strength designs of a dual purpose cane. First, we investigated and designed the geometric dimension of cane elements. Secondly, based on the Ergonomic and geometric dimension of cane, this work established the design kinematic constraints and objective function to design the geometry kinematic dimension of cane elements. Furthermore, by using ANSYS Workbench package to analysis the stresses and deflections of a dual purpose cane with given geometry kinematic dimensions, we can change the area dimensions of each cane element to obtain the can strength dimension and ensure their strength was satisfied with strength constraint. Finally, we design a Dual Purpose Cane with three kinematic and strength dimensions.
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