Device for the curvilinear motion of an object in contact with a surface, in particular with a convex surface

摘要

Device for the curvilinear motion of an object in contact with a surface, in particular with a convex or complex surface, comprising a vertical support frame (10) disposed in the vicinity of the surface (18) and a support arm constituted by at least one pantograph (1), of which one end (8), integral with the vertical support frame, is displaceable on demand according to the height of the latter and the other end of which carries the object (17) to be displaced without contact and at a good distance from the surface. According to the invention, this device is characterised in that at least of the axes (4) of articulation of the arm of the pantograph (1) is displaced, with the movement of the arm facing the frame (10), in a groove (21) whose profile is homothetic with that of the surface and which is situated in a vertical plane containing the pantograph arm. IMAGE