Disc brake with automatic adjustment

摘要

The automatic adjustment device is formed by a screw-nut 46-60 system with reversible pitch capable of being actuated by the hydraulic piston 20 beyond a predetermined stroke of the latter, the adjusting device comprising an annular element 76 rotationally integral with the nut and interacting with a control piston 64 immobilising the annular element 76 rotationally when the hydraulic pressure acting on the hydraulic actuating piston 20 reaches a predetermined value. According to the invention the hydraulic piston 20 is received with sealed sliding in a bore 62 formed in the control piston 64, the latter being received with sealed sliding in a bore 22 formed in the brake motor 12 thus allowing the dismantling of the hydraulic piston 20 of the control piston 64 of the annular element 76 and of the nut 60 as a unit. <IMAGE>