This " inverted slider-crank " is the form of a slider-crank linkage that is often used to actuate a hinged joint in construction equipment like a crane or backhoe, as well as to open and close a swinging gate or door.
32.
If the linkage has four hinged joints with axes angled to intersect in a single point, then the links move on concentric spheres and the assembly is called a " spherical four-bar linkage " . " Bennett's linkage " is a spatial four-bar linkage with hinged joints that have their axes angled in a particular way that makes the system movable.
33.
If the linkage has four hinged joints with axes angled to intersect in a single point, then the links move on concentric spheres and the assembly is called a " spherical four-bar linkage " . " Bennett's linkage " is a spatial four-bar linkage with hinged joints that have their axes angled in a particular way that makes the system movable.
34.
The knee is a modified hinge joint, a type of synovial joint, which is composed of three functional compartments : the patellofemoral articulation, consisting of the patella, or " kneecap ", and the patellar groove on the front of the femur through which it slides; and the medial and lateral tibiofemoral articulations linking the femur, or thigh bone, with the tibia, the main bone of the lower leg.
