Model: NTUT-D01 Toggle Mechanism

Taxonomy
NTUT
full image
Group
Slider-crank Mechanisms
ID
D01
Title
Toggle mechanism
Creator
Vintage
c.1913-1929
Manufacturer
Shimadzu Seisakusho Ltd.
Size Base: Width x Depth [267,101]mm;
Overall: W x D x Height [267,114,214]mm
Medium
Iron
Rights
All rights reserved by National Taipei University of Technology and National Cheng Kung University
Audience
General Public
Keyword
Description
For a linkage mechanism, the limit position of a link is the position of a link for which a coordinate which describes its position relative to an adjacent link is a maximum or a minimum. For a mechanism, when one of its links is in a limit position, we said that it is at the limit position of a mechanism. For a four-bar mechanism, if its limit positions are occurred when the active link is aligned with the connecting rod, this mechanism is at the toggle position. When the mechanism is reaching its toggle position, a small input torque can generate an extremely large output torque, where its mechanical advantage is being infinitely maximal. At such situation, the mechanism is called a toggle mechanism. The toggle mechanisms can be used in the situation when one needs to output large force subject to a short stroke, for example, the stone crushers and mechanical presses, etc. The shown mechanism has a toggle position when the two lower links arrange to be aligned. At this position, the slider can produce an extremely large power to press workpiece.
Descr Author Hong-Sen Yan
Descr Date

2006-11-01

References
[1] Yan, H. S., 1999, Mechanisms (Chinese), 2nd edition, Tong Hua Books, Taipei, pp. 169-170.
[2] IFToMM Standardization of Terminology, 2003, Mechanism and Machine Theory, Vol. 38, No. 7-10, Chapter 1.3.15 and 1.3.16, p. 774.
Resources Movie
Simulation