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http://dx.doi.org/10.3795/KSME-A.2017.41.10.991

Design of Crank Drive System Based on Gait Pattern for Stand-up Bicycle  

Hyeong, Joonho (Human Convergence Technology Group, Korea Institute of Industrial Technology)
Roh, Jongryun (Human Convergence Technology Group, Korea Institute of Industrial Technology)
Kim, Sayup (Human Convergence Technology Group, Korea Institute of Industrial Technology)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.41, no.10, 2017 , pp. 991-996 More about this Journal
Abstract
Gait stability is partly characterized by an extended stance phase that comprises 60 of the gait ％ cycle. In this study, a gait pattern was employed for a crank drive system that allows for stable lower limb kinematics during stand-up cycling. A quick return mechanism was applied to the crank system to allow for a slow rotation of the crank during the stance phase and for a quick return during the swing phase. Design parameters for the quick return crank mechanism were defined, and kinematic simulations were performed to understand the behavior of the mechanism. To evaluate the design, an experimental instrument was fabricated, and the cycling motion was analyzed. The results indicated that this new drive system can stabilize the center of mass of the user. This study can contribute to the development of a stand-up bicycle that allows for more comfortable leg kinematics.
Keywords
Personal Mobility; Stand-Up Bicycle; Crank Drive System; Stance Phase; Eccentric Distance;
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Times Cited By KSCI : 1  (Citation Analysis)
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