Drum brake for a motor vehicle
A drum brake for a motor vehicle has a pocket for collecting abraded brake particles. The pocket is accessible from above via an opening. After the introduction of a suction device into the opening, the abraded brake particles can be extracted by suction. Pollution of the environment with abraded brake particles is thereby avoided.
1. A drum brake for a motor vehicle comprising:
a rotatably mounted brake drum, having a radially inward-facing friction surface;
brake linings arranged radially inside the friction surface;
an actuator for preloading the brake linings against the friction surface;
an anchor plate for holding the actuator, having an opening for discharging abraded brake particles from the brake drum; and
a cover for the brake drum, the cover defining a pocket for collecting abraded brake particles, and the opening projecting into the pocket.
2. The drum brake as claimed in claim 1 , wherein the opening is spaced apart from the base region of the cover.
3. A drum brake for a motor vehicle comprising:
a rotatably mounted brake drum, having a radially inward-facing friction surface;
brake linings arranged radially inside the friction surface;
an actuator for preloading the brake linings against the friction surface;
an anchor plate for holding the actuator, having an opening for discharging abraded brake particles from the brake drum; and
a cover for the brake drum,
wherein the cover delimits a pocket for collecting abraded brake particles, and
wherein the opening opens into a collecting funnel projecting into the pocket.
4. The drum brake as claimed in claim 3 , wherein the collecting funnel is arranged between two brake linings and directly above the inner side of the brake drum and has a trough shape for collecting the abraded brake particles.
5. The drum brake as claimed in claim 1 , wherein the cover has a vertical section, and the vertical section has a partial region which forms the pocket, and in that the opening is arranged above the vertical section.
6. The drum brake as claimed in claim 1 , wherein the anchor plate and the cover are manufactured in one piece.
7. The drum brake as claimed in claim 1 , wherein the opening is closed by a plug.
8. The drum brake as claimed in claim 1 , wherein the opening has a connection for a suction line.
9. The drum brake as claimed in claim 1 , wherein the opening is connected to an air filter.
10. The drum brake as claimed in claim 1 , wherein the opening is connected to an intake tract of an internal combustion engine.
11. A drum brake for a motor vehicle comprising:
a rotatably mounted brake drum, having a radially inward-facing friction surface;
brake linings arranged radially inside the friction surface;
an actuator for preloading the brake linings against the friction surface;
an anchor plate for holding the actuator, having an opening for discharging abraded brake particles from the brake drum; and
a cover for the brake drum,
wherein the cover delimits a pocket for collecting abraded brake particles, and
wherein the pocket has on its upper side a section which slopes relative to a vertical section, and the opening is arranged in a sloping section.
12. The drum brake as claimed in claim 1 , wherein the opening has a tubular nozzle.