Device for a drum brake, in particular for mechanically operated self energising internal drum brakes for motor vehicles

摘要

A device for a drum brake, in particular for mechanically operated self-energising internal drum brakes for motor vehicles, is proposed, having a pair of brake shoes (4, 5), which are arranged on a pressure piece (6) on a brake supporting plate (27) and are provided with tension springs (7, 10), a mechanical operating device, which operates between a pair of brake shoe ends (4, 5) that are arranged opposite one another and are pretensioned by springs (7, 10), the mechanical operating device being able to press the brake shoes (4, 5) onto a brake drum (1) surrounding them, for braking. …??The invention provides that the adjusting device, consisting of a first adjusting device, is provided with a longitudinally varying compression strut (39), which is self-adjusting and is arranged between the brake shoes (4, 5), and that a second adjusting device has a self-adjusting adjusting element on a brake shoe web (12), which supports the brake shoe (5), which adjusting element interacts in the circumferential direction with both the mechanical operating device (3) and a supporting frame (2). …IMAGE…