Disc brake for vehicles, in particular for commercial vehicles

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

a brake disc ( 2 ),

at least two brake linings ( 3 , 3 a ),

an adjusting spindle ( 4 ) axially adjustable toward the brake linings ( 3 , 3 a ) for setting an air play (L) between the brake linings ( 3 , 3 a ) and the brake disc ( 2 ), the adjusting spindle ( 4 ) having:

a pressure plate ( 4 a ) arranged on the adjusting spindle ( 4 ) on a side facing the brake linings ( 3 , 3 a ), and

a pressure piece ( 9 ) arranged on the adjusting spindle ( 4 ) on a side axially opposite from the brake linings ( 3 , 3 a ),

wherein the pressure piece ( 9 ) has an anti-rotation safeguard ( 10 ; 10 a ) for blocking a rotation (R) of the adjusting spindle ( 4 ), and the anti-rotation safeguard ( 10 ; 10 a ) axially engages the adjusting spindle ( 4 ),

wherein, axially in the direction of the adjusting spindle ( 4 ), the pressure piece ( 9 ) has a guide ( 12 ) for receiving a connecting element ( 11 ) of the anti-rotation safeguard;

wherein the anti-rotation safeguard ( 10 ) comprises a fixing element ( 6 ; 6 a ), with an opening ( 7 ; 7 a ), and the connecting element ( 11 ; 11 a ) is configured to engage the opening ( 7 ; 7 a ) of the fixing element ( 6 ; 6 a );

wherein, the guide ( 12 ) is of T-shaped configuration.

2. The disc brake ( 1 ) according to claim 1 , wherein the connecting element ( 11 ) is connected in a positively locking manner to the pressure piece ( 9 ).

3. The disc brake ( 1 ) according to claim 1 , wherein the connecting element ( 11 ) is of plate-shaped configuration and, axially in the direction of the pressure piece ( 9 ), has lugs ( 8 , 8 a ) for fixing the connecting element ( 11 ) in the guide ( 12 ) of T-shaped configuration.

4. The disc brake ( 1 ) according to claim 3 , wherein at least one lug ( 8 , 8 a ) can be deformed horizontally, in relation to the axial axis (A).

5. The disc brake ( 1 ) according to claim 1 , wherein the connecting element ( 11 ; 11 a ) has a rectangular, square or hexagonal cross-section.

6. The disc brake ( 1 ) according to claim 1 , wherein the fixing element ( 6 a ) is arranged on the adjusting spindle ( 4 ) axially opposite from the pressure plate ( 4 a ), the fixing element ( 6 a ) and the adjusting spindle ( 4 ) being configured as one structural unit.

7. The disc brake ( 1 ) according to claim 6 , wherein the adjusting spindle ( 4 ) has a bore ( 13 ) along an axial axis (A), and the bore ( 13 ) complements the connecting element ( 11 , 11 a ) in length and shape.

8. The disc brake ( 1 ) according to claim 1 , wherein the opening ( 7 ; 7 a ) of the fixing element ( 6 ; 6 a ) complements the connecting element ( 11 ; 11 a ) in shape.

9. The disc brake ( 1 ) according to claim 1 , wherein the connecting element ( 11 ) is guided axially by the way of the guide ( 12 ) in the direction of the adjusting spindle to fix the connecting element ( 11 ) to the pressure piece ( 9 ).

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

a brake disc ( 2 ),

at least two brake linings ( 3 , 3 a ),

an adjusting spindle ( 4 ) axially adjustable toward the brake linings ( 3 , 3 a ) for setting an air play (L) between the brake linings ( 3 , 3 a ) and the brake disc ( 2 ), the adjusting spindle ( 4 ) having:

a pressure plate ( 4 a ) arranged on the adjusting spindle ( 4 ) on a side facing the brake linings ( 3 , 3 a ), and

a pressure piece ( 9 ) arranged on the adjusting spindle ( 4 ) on a side axially opposite from the brake linings ( 3 , 3 a ),

wherein the pressure piece ( 9 ) has an anti-rotation safeguard ( 10 ; 10 a ) for blocking a rotation (R) of the adjusting spindle ( 4 ), and the anti-rotation safeguard ( 10 ; 10 a ) axially engages the adjusting spindle ( 4 ),

wherein the anti-rotation safeguard ( 10 ) comprises a fixing element ( 6 ; 6 a ), with an opening ( 7 ; 7 a ), and a connecting element ( 11 ; 11 a ) configured to engage the opening ( 7 ; 7 a ) of the fixing element ( 6 ; 6 a ),

wherein the fixing element ( 6 ) is arranged in a positively locking manner in a groove ( 5 ) of the adjusting spindle ( 4 ), axially opposite from the pressure plate ( 4 a ).

11. The disc brake ( 1 ) according to claim 10 , wherein the connecting element ( 11 a ) and the pressure piece ( 9 ) are configured as one structural unit.

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

a brake disc ( 2 ),

at least two brake linings ( 3 , 3 a ),

an adjusting spindle ( 4 ) axially adjustable toward the brake linings ( 3 , 3 a ) for setting an air play (L) between the brake linings ( 3 , 3 a ) and the brake disc ( 2 ), the adjusting spindle ( 4 ) having:

a pressure plate ( 4 a ) arranged on the adjusting spindle ( 4 ) on a side facing the brake linings ( 3 , 3 a ), and

a pressure piece ( 9 ) arranged on the adjusting spindle ( 4 ) on a side axially opposite from the brake linings ( 3 , 3 a ),

wherein the pressure piece ( 9 ) has an anti-rotation safeguard ( 10 ; 10 a ) for blocking a rotation (R) of the adjusting spindle ( 4 ), and the anti-rotation safeguard ( 10 ; 10 a ) axially engages the adjusting spindle ( 4 ),

wherein the anti-rotation safeguard ( 10 ) comprises a fixing element ( 6 ; 6 a ), with an opening ( 7 ; 7 a ), and a connecting element ( 11 ; 11 a ) configured to engage the opening ( 7 ; 7 a ) of the fixing element ( 6 ; 6 a ),

wherein the fixing element ( 6 ) is a plate ( 6 ) made of a metal material or a plastic.

13. The disc brake ( 1 ) according to claim 12 , wherein the connecting element ( 11 a ) and the pressure piece ( 9 ) are configured as one structural unit.