Patent ID: 7082870

Claim:
An arrangement ( 10 ) for attachment of an axially oriented (A) brake booster ( 12 ) on a dashboard ( 14 ) of an automobile wherein a rear face ( 16 ) of the booster ( 12 ) is fixed on a front face ( 18 ) of the dashboard ( 14 ), and wherein a first bayonet fitting means ( 26 ) is interposed between the rear face ( 16 ) of the booster ( 12 ) and the front face ( 18 ) of the dashboard ( 14 ), which comprise: a receiving mounting plate ( 28 ) having a rear face ( 30 ) designed to be fixed to the front face ( 18 ) of the dashboard ( 14 ) and having a front face ( 32 ) carrying at least two hooks ( 34 ), which are spaced angularly around the axial direction (A) along a specified diameter (D), and having its active parts ( 37 ) facing towards the axial direction (A), and a fixing plate ( 36 ) having a front face ( 38 ) designed to be fixed to the rear face ( 16 ) of the booster ( 12 ), and having at least two radial wings ( 44 ) which extend radially from the fixing plate ( 36 ) along the specified diameter (D), which are spaced angularly around the axial direction (A), and which are designed, in a position of insertion of the plate ( 36 ), to be inserted angularly between two consecutive hooks ( 34 ) spaced angularly in a similar way to the wings ( 44 ) of the plate ( 36 ) and which are designed so that, when the fixing plate ( 36 ) is pivoted through an angle (α) in a specified direction around the axial position (A) to reach a locking position, each wing is retained axially by the active part ( 37 ) of an associated hook ( 34 ) to immobilize the fixing plate ( 36 ) with respect to the mounting plate ( 28 ) in the axial direction (A), elastic means ( 46 ), which are interposed between the receiving mounting plate ( 28 ) and the fixing plate ( 36 ), which are designed to push the radial wings ( 44 ) axially into contact with the active parts of hooks, and which can be kept compressed in the position in which the fixing plate ( 36 ) is inserted and then released by means for keeping them compressed and releasing them, and further characterized by a removable lock pin, that is interposed approximately tangentially between an edge ( 102 ) of a hook ( 34 ) of the mounting plate and an edge ( 104 ) of a radial notch ( 106 ) formed on the periphery of the fixing plate ( 36 ) to immobilize said fixing plate ( 36 ) angularly with respect to rotation around the axial direction (A) in the direction opposite to the specified direction to prevent the unlocking of the booster ( 12 ).