Patent ID: 8919516

Claim:
A coupling system ( 10 ) for coupling between a drive shaft ( 12 ) of a motor vehicle and a coaxial transmission shaft ( 14 A, 14 B), the coupling system comprising: a front friction clutch device ( 22 ) comprising a rotary drive assembly ( 40 ) which comprises at least one reaction plate ( 24 ); a rear flywheel ( 20 ) coaxial to the drive assembly ( 40 ), the rear flywheel is designed to be connected in rotation to the drive shaft ( 12 ); first means ( 54 , 56 ) for connection in rotation of the flywheel ( 20 ) and the drive assembly ( 40 ) of the clutch device ( 22 ), the first means ( 54 , 56 ) comprising a male element ( 54 ) and a female element ( 56 ) designed to be fitted axially in a sliding manner; second means ( 60 ) for circumferential clamping of the male element ( 54 ) in the female element ( 56 ) in a clamped state; and third means ( 66 , 68 ) for blocking the male element ( 54 ) and female element ( 56 ) rigidly in the clamped state thereof; the male element ( 54 ) of the first means ( 54 , 56 ) being axially adjustable relative to the female element ( 56 ) in a predetermined gap; the male ( 54 ) and female ( 56 ) elements being positioned engaged without circumferential play; the male element ( 54 ) comprising a cut-out ( 58 ) open towards the female element ( 56 ) in order to permit passage of the third means ( 66 , 68 ) during the axial fitting of the male element ( 54 ) in the female element ( 56 ); the cut-out ( 58 ) in the male element ( 54 ) and the female element ( 56 ) having axial lengths sufficient to permit axial adjustment of the male element ( 54 ) relative to the female element ( 56 ) and ensuring that the male element ( 54 ) remains engaged with the female element ( 56 ).