Disc brake for utility vehicles

1. A disc brake ( 1 ) for utility vehicles, comprising:

a brake caliper ( 2 ),

a brake disc ( 37 ),

an actuating lever ( 4 ) arranged axially to a disc brake axis (A) of the brake disc ( 37 ),

an adjusting device ( 36 ) comprising an adjusting spindle ( 12 ), a pressure collar ( 13 ) and an adjusting spindle head ( 27 ), wherein the adjusting device ( 36 ) is arranged at least partially within an interior ( 7 ) of the brake caliper ( 2 ),

a primary seal ( 8 ) configured to seal the interior ( 7 ) of the brake caliper ( 2 ),

an annular space ( 10 ), which is delimited by an inner wall ( 6 ) of a through-opening ( 19 ) of the brake caliper ( 2 ) and the adjusting device ( 36 ), and

a secondary seal ( 9 ) configured to at least partially seal the interior ( 7 ) of the brake caliper ( 2 ),

wherein the primary seal ( 8 ) and the secondary seal ( 9 ) define a protection cap ( 14 );

wherein the protection cap ( 14 ) is disposed on a cover plate ( 15 ) of the brake caliper ( 2 );

wherein the protection cap ( 14 ) has a projection ( 18 ) radially in the direction of the cover plate ( 15 ) of the brake caliper ( 2 ) that secures the protection cap ( 14 ) to the cover plate ( 15 ).

2. The disc brake ( 1 ) as claimed in claim 1 , wherein the protection cap ( 14 ) is disposed on the cover plate ( 15 ) of the brake caliper ( 2 ) via a holding device ( 16 ).

3. The disc brake ( 1 ) as claimed in claim 2 , wherein the protection cap ( 14 ) is pushed and secured against an inner wall ( 29 ) of the cover plate ( 15 ) of the brake caliper ( 2 ) by the holding device ( 16 ), and the projection ( 18 ) is a nub ( 17 ) and provides additional securement of the protection cap ( 14 ) against removal from the cover plate ( 15 ).

4. The disc brake ( 1 ) as claimed in claim 3 , wherein the protection cap ( 14 ) includes a common end ( 30 ) from which the primary seal ( 8 , 8 a ) and secondary seal ( 9 ) extend radially inward, wherein the common end ( 30 ) is disposed radially within an inner wall of an opening ( 34 ) of the cover plate ( 15 ).

5. The disc brake ( 1 ) of claim 4 , wherein the protection cap ( 14 ) has a projection ( 18 ) radially in the direction of the cover plate ( 15 ) of the brake caliper ( 2 ), wherein the protection cap ( 14 ) includes both the primary seal ( 8 , 8 a ) and the secondary seal ( 9 ) as a one-piece structure, and the projection ( 18 ) provides captive securement against a release of the protection cap ( 14 ) from the cover plate ( 15 ).

6. The disc brake ( 1 ) as claimed in claim 2 , wherein at least one nub ( 17 ) forms the projection ( 18 ) of the protection cap ( 14 ).

7. The disc brake ( 1 ) for utility vehicles as claimed in claim 2 , wherein an opening ( 34 ) of the cover plate ( 15 ) defines a circular profile, an oval profile or a polygonal profile.

8. The disc brake ( 1 ) as claimed in claim 2 , wherein the protection cap ( 14 ) is disposed directly on the cover plate ( 15 ) of the brake caliper ( 2 ).

9. The disc brake ( 1 ) as claimed in claim 2 , wherein the protection cap ( 14 ) is fastened in a circumferential groove ( 24 ) of the cover plate ( 15 ).

10. The disc brake ( 1 ) as claimed in claim 2 , wherein the protection cap ( 14 ) is fastened to the cover plate ( 15 ) by vulcanization.

11. The disc brake ( 1 ) as claimed in claim 2 , wherein the cover plate ( 15 ) is produced from a single bending direction.

12. The disc brake ( 1 ) as claimed in claim 1 , wherein the secondary seal ( 9 ) is arranged within the annular space ( 10 ).

13. The disc brake ( 1 ) as claimed in claim 1 , wherein the primary seal ( 8 ) has a sealing diameter (D) and is disposed on the adjusting spindle head ( 27 ) and the secondary seal ( 9 ) has a sealing diameter (D 2 ) and is disposed on an adjusting spindle neck ( 28 ) of the adjusting spindle ( 12 ).

14. The disc brake ( 1 ) as claimed in claim 1 , wherein the protection cap ( 14 ) is configured to be disassembled from the disc brake ( 1 ).

15. The disc brake ( 1 ) as claimed in claim 1 , wherein, in relation to the disc brake axis (A), the primary seal ( 8 ) is arranged radially on the adjusting spindle head ( 27 ) of the adjusting spindle ( 12 ) and the primary seal ( 8 ) is movable in the direction of the disc brake axis (A).

16. The disc brake ( 1 ) as claimed in claim 1 , wherein the secondary seal ( 9 ) is L-shaped in cross-section.

17. The disc brake ( 1 ) as claimed in claim 1 , wherein the primary seal ( 8 ) is a gaiter ( 8 a ).

18. The disc brake ( 1 ) as claimed in claim 1 , wherein the protection cap ( 14 ) includes both the primary seal ( 8 , 8 a ) and the secondary seal ( 9 ) as a one-piece structure, and the projection ( 18 ) provides captive securement against a release of the protection cap ( 14 ) from the cover plate ( 15 ).

19. A disc brake ( 1 ) for utility vehicles, comprising:

a brake caliper ( 2 ),

a brake disc ( 37 ),

an actuating lever ( 4 ) arranged axially to a disc brake axis (A) of the brake disc ( 37 ),

an adjusting device ( 36 ) comprising an adjusting spindle ( 12 ), a pressure collar ( 13 ) and an adjusting spindle head ( 27 ), wherein the adjusting device ( 36 ) is arranged at least partially within an interior ( 7 ) of the brake caliper ( 2 ),

a primary seal ( 8 ) configured to seal the interior ( 7 ) of the brake caliper ( 2 ),

an annular space ( 10 ), which is delimited by an inner wall ( 6 ) of a through-opening ( 19 ) of the brake caliper ( 2 ) and the adjusting device ( 36 ), and

a secondary seal ( 9 ) configured to at least partially seal the interior ( 7 ) of the brake caliper ( 2 ),

wherein the primary seal ( 8 ) and the secondary seal ( 9 ) define a protection cap ( 14 );

wherein the protection cap ( 14 ) is disposed on a cover plate ( 15 ) of the brake caliper ( 2 );

wherein the protection cap ( 14 ) includes a common end ( 30 ) from which the primary seal ( 8 , 8 a ) and secondary seal ( 9 ) extend radially inward, wherein the common end ( 30 ) is disposed radially within an inner wall of an opening ( 34 ) of the cover plate ( 15 ).