HOLDING-DOWN DEVICE FOR A BRAKE SHOE OF A DRUM BRAKE

摘要

A brake shoe (12) is guided on an anchor plate (10) of a drum brake and held down by a pin (32) which extends through a hole (34, 36) respectively in the anchor plate (10) and a web (18) of the brake shoe (12). The pin (32) has a foot (38) supported on the anchor plate (10) and a head (42) which has a radially outwardly rising underside (44) which is dynamically balanced in relation to the pin (32). Between the head (42) and the web (18) there is a spring (46) which has a receptacle (50) having a recessed seat (52) for the head (42) and a slot (60) for the radial sliding of the receptacle (50) on the pin (32). The seat (52) is funnel-shaped with an annular upper edge (54). The slot (60) is bordered by a pair of outer edges (62) and a pair of adjoining inner edges (64). The outer edges (62) of the slot (60) converge on the upper edge (54) of the seat (52). This design of the holding-down device makes the assembly of the brake shoe (12) easier and reduces the risk of incorrect fitting.