Aerial support platform mechanism with five axes of motion

F - Mech Eng,Light,Heat,Weapons – 16 – M

Patent

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F16M 13/00 (2006.01)

Patent

CA 2157222

An aerial support platform is supported to extend below, and intermediate of, a pair of parallel cables mounted along respective opposite walls of a studio. A carriage rides on each of the parallel cables, and another pair of cables extends to connect the pair of carriages. A third carriage sits on the other pair of cables, and a series of further cables extend vertically from that carriage to the platform. The pair of carriages positioned on the opposite walls of the studio are controlled to move in tandem, and the third carriage has controlled movement between those carriages. The platform may be raised or lowered relative to the third carriage, and thus has three linear axes of motion. The platform has two additional axes of motion, both rotational. One is around a vertical axis and another is around an axis normal to the vertical axis. Cinematographic equipment may be fixed to the platform, which can then be oriented using a computer at a remote location.

Cette invention concerne une plate-forme aérienne suspendue sous et entre une paire de câbles parallèles longeant respectivement un de deux murs opposés d'un studio. Un chariot circule sur chacun des câbles parallèles et une autre paire de câbles relient ces deux chariots l'un à l'autre. Un troisième chariot circule sur cette deuxième paire de câbles et supporte la plate-forme au moyen d'autres câbles verticaux. La paire de chariots circulant le long des deux murs opposés du studio se déplacent ensemble et le troisième chariot se déplace entre eux. La plate-forme peut également être élevée ou abaissée par rapport au troisième chariot; elle a donc trois degrés de liberté linéaire. Elle possède deux autres degrés de liberté, soit la rotation autour d'un axe vertical et la rotation autour d'un axe horizontal. La plate-forme est conçue pour recevoir du matériel cinématographique dont l'orientation peut être déterminé à distance à l'aide d'un ordinateur.

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