Automatic wear adjuster brake drum, brake drum and set to a brake drum of vehicle hired

摘要

"Automatic slack adjuster wear of brake drum, brake drum and set to a brake drum of vehicle hired.With the present invention relates to an adjuster, which comprises a bar (36) with: first and second part (36a, 36B) with the intention of being connected to the two claws (16a, 16b) of the brake.A ring (42) screwed around the first part (36a) so that it can be moved in a direction of screwing and unscrewing so as to respectively elongate and shorten the slider (36).Means for rotating the ring (42) which are activated by a relative movement of the two parts (36a, 36B).Comprising a ramp (54) supported by the second part (36B) collaborating with a set gear (56) supported by the ring (42) and equipped with teeth separated at the base by generating lines (g) which areAll inclined in relation to the axis (T) of rotation of the ring (42) and not boring with this axis (T),The means to establish a clearing where the maximum elongation of the bar (36) during a cycle of stretching - shortening of the bar is greater than the length of the bar (36) resulting from the screwing)The ring (42) during that cycle.