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1. (WO2010115895) MECHANICAL DEVICE FOR THE TRANSMISSION OF A FORCE WITH A THRESHOLD

Pub. No.:    WO/2010/115895    International Application No.:    PCT/EP2010/054538
Publication Date: Fri Oct 15 01:59:59 CEST 2010 International Filing Date: Wed Apr 07 01:59:59 CEST 2010
IPC: F16D 43/21
F16F 7/04
Applicants: MESSIER-BUGATTI-DOWTY
LAFITTE, Arnaud
VERLYCK, Sabien
VALEMBOIS, Guy
Inventors: LAFITTE, Arnaud
VERLYCK, Sabien
VALEMBOIS, Guy
Title: MECHANICAL DEVICE FOR THE TRANSMISSION OF A FORCE WITH A THRESHOLD
Abstract:
The invention relates to a mechanical device for the transmission of a force with a threshold, including: a first element (1; 101) and a second element (2; 102) mounted such that they rotate in relation to one another about an axis of rotation (X), and a transmission member (10; 110) which is disposed between the aforementioned two elements and which secures the two elements to one another in rotation when a torque is applied to one of the elements so that said torque can be transmitted from one of the elements to the other, up to a threshold torque above which the two elements can rotate against a resistive torque equal to the threshold torque. According to the invention, the transmission member includes: at least a first friction disk (11; 111) rotatably fixed to the first element and a second friction disk (12; 112) opposite the first disk; a bearing member (13; 113) which can move axially such that, under the action of a press member, it can press the disks together and against a bearing plate (15; 115) of the first element; and rotation driving means (20, 21; 120, 121) disposed between the bearing member and the second element, which are provided to generate the axial movement of the bearing member against the spring member during a rotation.