橢圓機步距調整機構之分析與設計

Analysis and Design of Variable-stride Mechanism in Elliptical Exerciser

何宗翰(Zong-Han He)

指導教授 ： 徐正會 ； 韓麗龍

國立臺北科技大學/機電學院/機電整合研究所/碩士(2013年)

https://doi.org/10.6841/NTUT.2013.00512

摘要

本研究係有關橢圓機步距調整機構之設計，此橢圓機是由一組可變曲柄機構、導引搖桿、耦桿、踏板桿及手把搖桿所組成。本設計之特色係藉由一組曲柄搖桿機構導引踏板桿進行步態軌跡之模擬，使步態軌跡為腰果形軌跡；並設計一組齒輪式可變曲柄機構，此機構係利用兩相同齒輪之等角位移運動以改變兩側曲柄長度，達到橢圓機步距之可調。本設計之優點為腰果形步態軌跡，其更能貼近人的步態軌跡且機構作動時並無頓點產生；利用改變曲柄長度以進行步距大小之調整，可避免步態軌跡之幾何形狀產生變形。本研究已使用電腦輔助繪圖軟體建構其3D模型，並確認所設計之機構無干涉情況，且模擬動作過程，驗證此機構之作動過程無誤。本研究之相關成果已提出專利申請。

關鍵字

橢圓機 ； 腰果形 ； 齒輪式 ； 可變曲柄機構

並列摘要

This research dealt with the mechanism design of a variable-stride elliptical exerciser consisting of: variable-crank mechanism, leading rocker, coupler link, pedal link, hand-bar rocker. Its properties are: foot pattern driven by a set of crank-rocker mechanism; cashew-like trajectory, gear-type variable-crank mechanism changing crank lengths by rotating two identical gears to adjust stride of the exerciser. The merits of this research are: cashew-like trajectory for better simulation of human stride without cusp, changing the length of stride by changing crank length, maintaining foot pattern. This research used CAD software to construct 3D model, CAE software for simulation and interference check to ensure correct movement of the mechanism. The related results were filed for patent application.

並列關鍵字

elliptical exerciser ； cashew-like ； gear type ； variable-crank mechanism

參考文獻

[24]Theodore E. Cosby, Patrick J. Cunningham, “Variable Resistance Exercise Apparatus And Improved Method Of Exercising,” U.S. Patent 4521012 , 1985.

[5]Michael Lin；Hui-Nan Yu, “Stationary Exercise Device,” U.S. Patent 5769760, 1998.

[22]Michael Kent Farney, “Pedal Crank,” U.S. Patent US 6820517 B1, 2004.

[15]Joseph D Maresh, “Elliptical Exercise Methods And Apparatus,” U.S. Patent 5997445, 1999.

[3]Robert E. Rodgers, “Stationary Exercise Apparatus,” U.S. Patent 5595553, 1997.