Patent ID: 7344165

Claim:
An instantaneous coupling device comprising a tubular body ( 1 ) and retaining means for retaining a pipe end in leaktight manner in the body, said means comprising an elastically deformable annular sealing element ( 4 ) and a retaining member ( 5 ) that are arranged to receive the pipe end, cam means ( 11 , 14 ) for bringing the retaining member from a release state in which it releases the pipe end to a grip state in which it grips the pipe end when the retaining member is moved axially in the tubular body from a first position to a second position, and means for resiliently returning the retaining member towards its second position, wherein the sealing element is mounted between a radial shoulder ( 6 ) of the body and a radial face ( 8 ) of the retaining member in order to form the resilient return means for returning the retaining member towards its second position, and wherein the radial shoulder ( 6 ) of the body ( 1 ) and the radial face ( 8 ) of the retaining member ( 5 ) present complementary portions in relief ( 7 , 9 ) to bear laterally against the annular sealing element ( 4 ).