本文利用參數化方法進行設計與分析,提出一種汽車座椅機構設計,具有旋轉、升降、分離與結合之功能,可協助行動不便人士進出汽車。該機構之兩用椅可固定於車內做為汽車座椅,亦可與機構分離後於車外發揮輪椅功能。當分離的兩用椅回到車內時,輪椅支架機構可將輪椅支架及前後四輪向上收起,不僅減少佔據車內空間,亦能通過更小的車輛出入口。另外,本文發展一套整合型參數化程式,可以建立座椅模型、進行運動軌跡分析,並根據運動軌跡分析之結果進行運動過程之靜態力分析,掌握運動過程各零件負荷情形。透過此系統,除可瞭解設計之表現,亦可用於設計變更時之評估,加速設計變更流程的進行,使本文之汽車座椅機構能更方便用於各種不同車種。
This thesis proposes a new seat mechanism design to assist disabled people getting on and off welfare vehicles. The seat mechanism, designed by means of parametric design and analysis, has capabilities of rotating, lifting, and separating/joining. The two-way-seat can be fastened in the car as a vehicle seat, or separates from the mechanism as a wheelchair. The linkages of four wheels of the two-way-seat can be moved to the storage position such that space occupation inside the vehicle can be reduced. In addition, an integrated parametrical program is developed for establishing the seat model, analyzing the motion trajectory, and finding the service loads under any motion position. With the developed program, performances of the seat mechanism can be evaluated, and the redesign procedure can be accelerated such that the seat mechanism can be fit to different vehicle more easily.