Patent ID: 7513347
Filing Date: 2009-04-07
Classification: F16D,Y10T

Abstract:
1. Device suitable for transmitting a torque from a first shaft ( 5 ) to at least one second shaft ( 6 ), characterized in that the first shaft ( 5 ) is mechanically connected to a first cylindrical sleeve ( 12 ) which can be mechanically coupled or uncoupled with a second sleeve ( 13 ) mechanically connected to the second shaft ( 6 ) and arranged in a coaxial way around the first sleeve ( 12 ), by extracting or retracting, respectively, at least one mobile tooth ( 14 ) which can rotate in a seat made in the first sleeve ( 12 ), a third sleeve ( 18 ) being arranged in a coaxial and rotating manner around the first sleeve ( 12 ) and being provided with braking means ( 19 ; 25 ), wherein the mobile tooth ( 14 ) is provided with a cursor ( 21 ) suitable for sliding in a substantially radial manner in a groove ( 22 ) made in the third sleeve ( 18 ), so that the relative rotation of the third sleeve ( 18 ) with respect to the first sleeve ( 12 ) causes the extension or the retraction of the mobile tooth ( 14 ) according to the direction of this relative rotation.