Geared Fivebar Cognates
 WM2D File |
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Software copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved.
Info
The geared fivebar linkage (shown at the bottom of each figure) and the fourbar (top) are cognate linkages as they generate the same coupler curve.
The fivebar is constructed by drawing links parallel to the original fourbar, as shown in the left figure. A three-gear set couples the two links shown in purple so they turn in the same direction and speed. Note that each purple gear is fixed to the respective purple link, and an idle gear is meshed between the two purple gears.
Source
The geared fivebar cognate Working Model file are adapted from Figure 3-28 on p.129 in Design of Machinery, 3rd ed. by Norton, R.L., McGraw-Hill, 2004.
Credits
This Working Model file was first developed by Jie (Jeff) Yang.