Supports – Pipe or cable – Extending through plate
Patent
1974-10-21
1976-07-06
Pinkham, Richard C.
Supports
Pipe or cable
Extending through plate
248371, G09B 908
Patent
active
039673871
ABSTRACT:
This invention relates to motion simulators that are used to impart controlled movement to a rigid platform which may support the student station of a vehicle simulator, or the like. In particular, my invention relates to an improvement in the geometric arrangement of actuators and actuator pivot points on such devices to provide better motion fidelity, improved simultaneous excursion capability, and better adaptability in accommodating visual display systems. A unique feature of this invention is an assembly of three linear actuators and six universal joints in the form of a tetrahedron, the apex of which is held fixed in space and the base of which is attached to and allowed to move with the movable platform. This final apex tetrahedron assembly can provide the platform with two rotational and one translational degrees of freedom, such as pitch, yaw and longitudinal motion, and can operate in conjunction with other movement producing elements to provide total motion capability in four, five or even six degrees of freedom.
REFERENCES:
patent: 3215391 (1965-11-01), Storm
patent: 3529354 (1970-09-01), Roberts et al.
patent: 3645011 (1972-02-01), Callanen
patent: R27051 (1971-02-01), Cappel
Stewart, D.; "A Platform with Six-degrees of Freedom;" Proc Instn Mech Engrs.; vol. 180, Pt. 1, No. 15; 1966; pp. 371-386.
Kraus, R.; "Principles of the Systematic Gear Assembly;" Verlag Technik, East Berlin, Germany; 1952; pp. 155-164.
Hansen Leslie M.
Hum Vance Y.
Pinkham Richard C.
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