汽車福祉椅升降機之設計與分析

Design and Analysis of a Vehicle Seat Lift for the Disabled

黃俊碩(Chun-Shuo Huang)

指導教授 ： 鍾添東

國立臺灣大學/工學院/機械工程學研究所/碩士(2006年)

https://doi.org/10.6342/NTU.2006.03140

摘要

本文發展一套汽車福祉椅升降機。首先提出升降機之配置設計，接著利用參數化設計方法，進行升降機之細部零件設計。本文汽車福祉椅升降機安裝於座椅基座之旋轉板上，而座椅基座固定於汽車車室地板上，可提供座椅移動與旋轉之動作。升降機之升降機構由一組連接至減速機的馬達驅動，而該減速機設有兩輸出軸，馬達輸出動力藉由減速機傳遞至兩軸端傘齒輪，並利用傘齒輪傳遞至安裝於蝸輪蝸桿裝置，而蝸輪蝸桿與升降機構之後連桿組連結，則後連桿組藉由馬達可有旋轉動作，該旋轉動作則可抬起或放下座椅與其上方乘客。本文汽車福祉椅升降機之座椅與座椅架經更進一步修改後，可變更為可分離之座椅與座椅連結架，而座椅可與連桿組分離並改變為獨立輪椅。此外本文亦利用有限元素分析與最佳化設計方法，以確保結構整體之安全性。最後製造汽車福祉椅升降機之初型，除了驗證設計過程之可靠性以外，亦量測升降機之性能數據，而量測結果顯示本文汽車福祉椅升降機安全無虞，且可安裝於九人座車輛以提供行動不便人士使用。

關鍵字

座椅升降機 ； 汽車福祉椅 ； 參數化設計 ； 有限元素分析 ； 最佳化設計

並列摘要

This thesis developed a vehicle seat lift for the disabled. At the beginning of the design process, a configuration design of the seat lift is proposed. The parametric design method is then used for the detail design of the seat lift during the design process. The vehicle seat lift is mounted on the rotate plate of the seat base. The seat base is fixed on the car floor, and can provide the slide and rotate motions for the seat. The lifting mechanism is driven by a motor that connects to a gearbox, which connects to two shafts. The power transmits from each of the shaft to a bevel gear, and then to a worm and gear system that connects to the rear linkage of the lifting mechanism. The rotation of the rear linkages will lift/lower the seat and the passenger sitting on it. The seat and the seat frame are further modified into a detachable seat and a connecting seat frame. The seat can be detached from the linkage and transformed into a wheelchair. The finite element analysis and the optimum design method are also applied for ensuring the design safety of the whole structure. Finally, a prototype is manufactured, and the validity of the design process is checked. Performances of the seat lift are also measured. The measured result shows that the seat lift design is safe and can be installed on passenger cars for the disabled.

並列關鍵字

seat lift ； vehicle seat ； parametric design ； finite element analysis ； optimum design

參考文獻

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