B - Operations – Transporting – 66 – C
Patent
B - Operations, Transporting
66
C
B66C 23/70 (2006.01)
Patent
CA 2608462
The invention relates to a device fixed to a first mast cooperating with a contact region on the outer face of a second mast (14), sliding essentially coaxially within the first mast. The device comprises guidance units with a roller (40) mounted such as to rotate about an axis (37) perpendicular to the axis of the masts, a friction block (31) with a pressure face (29), means for displacement of the axis of the roller perpendicular to the contact region of the mast according to the force exerted on the mast by the friction block. The pressure zone of the unit on the mast is thus formed by just the roller or the roller and friction block.
Un dispositif fixé à un premier mât coopère avec une zone de contact située sur la face extérieure d'un deuxième mât (14) coulissant sensiblement coaxialement dans le premier mât. Le dispositif comprend des unités de guidage comprenant : un galet (40) monté rotatif autour d'un axe (37) orthogonal à l'axe des mâts; un patin (31) présentant une face d'appui (29) ; des moyens permettant le déplacement de l'axe du galet perpendiculairement à la zone de contact du mât, selon les efforts exercés par le mât sur le galet. La zone d'appui de l'unité sur le mât est ainsi formée soit du galet seul, soit du galet et du patin.
David Stephane
Van Acker Alain
E.c.l.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
LandOfFree
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