Patent ID: 7104179

Claim:
A braking device comprising: a booster ( 1 ) having a housing with a longitudinal axis (X) formed of a cover ( 12 ) and a cylinder ( 10 ) defining a sealed pneumatic envelope, a central orifice ( 8 ) formed on the cylinder of the booster, a master cylinder ( 5 ) having a master cylinder body ( 14 ) that partially enters the pneumatic envelope via the central orifice, so that an axis of the master cylinder is coaxial with the axis of the booster, characterized by the master cylinder being fixed to the cylinder of the booster by plastic deformation of a hollow shaft ( 9 ), said hollow shaft bordering the central orifice and extending towards the outside of the envelope and penetrating at least one orifice ( 15 ) made in an exterior surface of the body of the master cylinder.