
A Roberts linkage is a
four-bar linkage
In the study of mechanisms, a four-bar linkage, also called a four-bar, is the simplest closed- chain movable linkage. It consists of four bodies, called ''bars'' or ''links'', connected in a loop by four joints. Generally, the joints are configu ...
which converts a rotational motion to approximate
straight-line
In geometry, a line is an infinitely long object with no width, depth, or curvature. Thus, lines are one-dimensional objects, though they may exist in two, three, or higher dimension spaces. The word ''line'' may also refer to a line segment ...
motion.
The linkage was developed by
Richard Roberts.
The Roberts linkage can be classified as:
*
Watt-type linkage
*
Grashof rocker-rocker
* Symmetrical
four-bar linkage
In the study of mechanisms, a four-bar linkage, also called a four-bar, is the simplest closed- chain movable linkage. It consists of four bodies, called ''bars'' or ''links'', connected in a loop by four joints. Generally, the joints are configu ...
References
See also
*
Straight line mechanism
A straight-line mechanism is a Mechanism (engineering), mechanism that converts any type of rotary or angular motion to perfect or near-perfect straight-line motion, or ''vice-versa''. Straight-line motion is linear motion of definite length ...
*
Four-bar linkage
{{Mech-engineering-stub
Linkages (mechanical)
Straight line mechanisms