THEORY OF MACHINES AND MECHANISMS

John J. Uicker, Jr. / Gordon R. Pennock Copyright © 2011 by Oxford University Press, Inc.Joseph E. Shigley

Figure 1.21 Coupling mechanisms for intersecting shafts.

THEORY OF MACHINES AND MECHANISMS

John J. Uicker, Jr. / Gordon R. Pennock Copyright © 2011 by Oxford University Press, Inc.Joseph E. Shigley

Figure 1.22 Six-bar stop-and-dwell mechanism.

THEORY OF MACHINES AND MECHANISMS

John J. Uicker, Jr. / Gordon R. Pennock Copyright © 2011 by Oxford University Press, Inc.Joseph E. Shigley

Figure 1.23 A set of coupler curves. (Reproduced by permission of the publishers, The Technology Press, MIT, Cambridge, MA, andWiley, New York, from J. A. Hrones and G. L. Nelson, Analysis of the Four-Bar Linkage, 1951.)

THEORY OF MACHINES AND MECHANISMS

John J. Uicker, Jr. / Gordon R. Pennock Copyright © 2011 by Oxford University Press, Inc.Joseph E. Shigley

Figure 1.24 Straight-line mechanisms: (a) Watt’s linkage, (b) Roberts’ mechanism, (c) Chebychev linkage, and (d) Peaucillier inversor.

THEORY OF MACHINES AND MECHANISMS

John J. Uicker, Jr. / Gordon R. Pennock Copyright © 2011 by Oxford University Press, Inc.Joseph E. Shigley

Figure 1.25 Scott–Russell exact straight-line mechanism; AB = AP = O2A

THEORY OF MACHINES AND MECHANISMS

John J. Uicker, Jr. / Gordon R. Pennock Copyright © 2011 by Oxford University Press, Inc.Joseph E. Shigley

Figure 1.26 The pantograph linkage.

THEORY OF MACHINES AND MECHANISMS

John J. Uicker, Jr. / Gordon R. Pennock Copyright © 2011 by Oxford University Press, Inc.Joseph E. Shigley

Figure 1.27 Four inversions of the slider-crank mechanism.

THEORY OF MACHINES AND MECHANISMS

John J. Uicker, Jr. / Gordon R. Pennock Copyright © 2011 by Oxford University Press, Inc.Joseph E. Shigley

Figure 1.28 Four inversions of the Grashof chain: (a, b) crank-rocker mechanisms, (c) draglink mechanism, and (d) double-rocker mechanism.

THEORY OF MACHINES AND MECHANISMS

John J. Uicker, Jr. / Gordon R. Pennock Copyright © 2011 by Oxford University Press, Inc.Joseph E. Shigley

Figure 1.29 (a) Eq. (1.7): s + l + p < q and the links cannot be connected; (b) Eq. (1.8): s + l − p > q and s is incapable of rotation; (c) Eq. (1.9): s+q+p < l and the links cannot be connected; (d) Eq. (1.10): s+q−p < l and s is incapable of rotation.

THEORY OF MACHINES AND MECHANISMS

John J. Uicker, Jr. / Gordon R. Pennock Copyright © 2011 by Oxford University Press, Inc.Joseph E. Shigley

Figure 1.30 Example 1.6. A planar four-bar linkage.