1. Date of download: 10/18/2017
Copyright © ASME. All rights reserved.
From: Lower Limb-Driven Energy Harvester: Modeling, Design, and Performance Evaluation
J. Med. Devices. 2016;10(4): doi: /
Figure Legend:
The lower limb-driven energy harvesting device. (a) Schematic showing how the harvester is worn by the user. Modified from Ref. [20]. (b) Components of the retraction mechanism: a constant force spring exerting a force on the input pulley, while its other end freely coils about an idler pulley. Cable path: the cable passes over two sets of idler pulleys, redirecting its path to be coiled about the input pulley. Gear train: the input pulley transfers motion to an input shaft. Motion is then transferred to a drive gear via a one-way roller clutch (shown in removed section). The motion is amplified through a single stage gear ratio to the driven gear. The driven gear is mounted on the generator shaft (not shown in the figure).