DISK BRAKE HAVING A CONVERSION CARTRIDGE PROVIDED WITH AN ANTI-MATTING DEVICE

摘要

The invention relates to a disk brake having a floating yoke and controlled brake piston, a motion-converting cartridge (200) including a rear portion bearing against the bottom of the recess in the yoke, and a control shaft (220) passing through the bottom. The cartridge (200) is held in place by a housing (490) that elastically engages with the wall of the recess. The piston (270) comprises longitudinal ribs (274) entering into longitudinal grooves provided in the recess, an anti-matting device (400) being positioned between the arms (274) of the piston (270) and the grooves of the recess of the yoke, and including a ring (410) having lugs (420) distributed in accordance with the arms (274) and having cylindrical tabs which are curved so as to match the shape of the cross-section of the arms and which thus blocking the rotation of the conversion piston (270) while still allowing the piston to translate.