Attachment for cam roller on drum brake's brake shoe - consists of pin mounted in end cavity of two parallel arms

摘要

The attachment for a cam roller (1) on the brake-shoe (2) of a drum brake (3) for transferring brake force from a cam (4) to the brake shoe (2), consists of a cam roller (1) pin (8) mounted in an end cavity (9) in two parallel brake shoe arms (5). At least one of the ends of the arms (13) next to the cavity (9) is flexible and, after at least one arm-end (13) has been bent, the two arm-ends (13, 17) grip round the pin (8) by more than 180 degrees. At least one of the two arm-ends (13, 17) and preferably the flexible one (13) has a back-tapered part (11). Next to the cavity (8) on the inner edge (14) of the brake arm is a protuberance (12) and a recess (16). ADVANTAGE - The quickly produced cam roller attachment holds the cam roller securely so that it rotates on the brake shoe.