Disc brake, brake pad for a disc brake, and hold-down device for securing brake pads

A disk brake configured to be mounted on a vehicle and having a brake caliper (1) which has a brake disk and brake pads (3), wherein the brake pads (3) include, arranged on opposite sides of said brake disk, an outwardly arranged brake pad facing toward an outside of the vehicle and an inwardly arranged brake pad facing away from the outside of the vehicle, in a pad channel (6), which brake pads (3) are each composed of a friction pad (4) and of a backplate (5), wherein the backplate (5) comprises a circumferential contour comprised of an upper margin (21), a lower margin (22), and two side margins (23A, 23B), wherein the two side margins (23,24) connect a first end of the upper margin and a first end of the lower margin (21, 22) to each other and connect a second end of the upper margin (21) and a second end of the lower margin (22) to each other, respectively, wherein the backplate (5) comprises a front side formed as a fastening surface (16) for the friction pad (4) and further comprises a rear side formed as a pressure surface for the transmission of the brake pressure, and having a hold-down means (7) which leads transversely across the brake pads (3) and which is supported, in the direction of the disk brake axis (A), against the brake pads (3), wherein the hold-down means (7) is formed, over a major part of its overall length, as a channel composed of an elongate base (7C), against which a spring (9) is supported, and of side flanks (8A, 8B) arranged to the sides of the base (7C), wherein:

• the upper margin (21) has a predominantly circular-arc-shaped profile extending from the first end to the second end of the upper margin (21);
• at least the backplate (5) of the outwardly arranged brake pad comprises, arranged at a distance below the circular-arc-shaped profile of the upper margin (21), a projection (40) that is integrally formed on the rear side of the backplate (5), wherein the projection (40) comprises a support surface (42) facing toward the lower margin (22) of the back plate (5) and the projection (40) further comprises a hold-down surface (43) arranged at a distance below the circular-arc-shaped profile of the upper margin (21) and facing away from the support surface (42);
• the hold-down means (7) has, toward one end thereof, an S-shaped cranked portion (11) adjoining the base (7C) and an end section (12) adjoining the cranked portion (11), wherein the S-shaped cranked portion (11) is arranged at a side of the brake disc facing toward the outside of the vehicle, wherein the end section (12) extends offset and parallel to the base (7C), wherein the S-shaped cranked portion (11), has a width measured perpendicularly to a length direction of the hold-down means (7) all the way across the hold-down means (7), wherein said width is smaller than a width of the base (7C) measured perpendicularly to the length direction of the hold-down means (7) between the side flanks (8A, 8B),
• a single-part or two-part bearing surface (12A) is formed on the end section (12), wherein the hold-down means (7) is supported against the outwardly arranged brake pad only by the single-part or two-part bearing surface (12A), wherein the single-part or two-part bearing surface (12A) is supported only on the hold-down surface (43) on the rear side of the backplate (5).