Disk brake and drive element of and adjusting device of a disk brake

A disk brake for a vehicle, preferably a commercial vehicle, having

• a brake caliper which engages over a brake disk and brake linings on both sides of the brake disk,
• a brake application device (5) which can be actuated by way of a force element and preferably a pneumatic cylinder,
• an adjusting device (20) for compensating for the brake lining and brake disk wear, which adjusting device (20) is arranged on an adjusting axis (L) which extends in the brake application direction, and is provided with a drive element (27) which can be rotated about the adjusting axis (L), and
• a brake lever (10) which is a constituent part of the brake application device (5) and is composed of a brake application shaft (11) which is mounted in the brake caliper on a pivoting axis and is supported such that it can be moved rotationally against a pressure piece (8) which operates against the brake application-side brake lining, and a lever arm (12) which is connected to the brake application shaft (11) and the pivoting center line of which extends at a right angle with respect to the brake application shaft (11), and which lever arm (12) is provided with a support (16) for the force element in the region of its outer end (12A), the brake lever (10) having a clearance (40) in an extension of the lever arm (12) to the inside, through which clearance (40) the adjusting axis (L) extends,
• a mechanism which couples the brake lever (10) to the drive element (27), and which is composed of a first mechanism element (31) on the brake lever (10) and a second mechanism element (32) on the drive element (27), which second mechanism element (32) interacts with said first mechanism element (31),
• characterized in that the first mechanism element (31) is arranged at the inner end (12B) of the lever arm (12) in the plane (E) which is defined by the pivoting movement (S) of the lever arm (12), and in that one of the two mechanism elements is a slotted guide (31, 32) and the other mechanism element is an element which is guided along the slotted guide (31, 32).