1. From: Vision Aid for Power Wheelchair Users
Date of download: 11/10/2017
Copyright © ASME. All rights reserved.
From: Vision Aid for Power Wheelchair Users
J. Med. Devices. 2008;2(4): doi: /
Figure Legend:
Drawings of the individual link subassemblies are shown (a). Link 1 has a keyed hole through which a drive shaft transmits torque from the motor; on the opposite end of Link 1, there is a pulley screwed onto it with a bushing in the center. A threaded pin on Link 2 passes through the bushing on Link 1 and rigidly connects a pulley to Link 2. On the opposite end of Link 2 is a pulley screwed onto it with a bushing in the center. A threaded pin on Link 3 passes through the bushing on Link 2 and rigidly connects a pulley to Link 3. Finally, on the opposite end of Link 3 there is a bushing through which a threaded pin on Link 4 passes and rigidly connects a pulley to Link 4. (b) An assembly view of the device is shown with belts spanning the pulleys driving the rotation of the links.