Actuator for a drum brake.

摘要

A mechanical actuator for a shoe drum brake includes a first part (6) connectable to a force-applying cable (8) and engaging a first brake shoe (2), and a second part (10) pivotally connected to the first part by a pin (9) and forming a strut between the first part and a second brake shoe (1). The pin (9) carries a pair of rollers (14) which engage surfaces (4A) on a fixed abutment member (4) secured to a backplate (3).