Brake cylinder for pneumatically actuated vehicle brakes, in particular for commercial vehicles, having a. a spring force accumulator brake section for carrying out parking brake operations by means of a spring force accumulator spring, and a service brake section for carrying out service brake operations which are actuated by compressed air, the spring force accumulator brake section and the service brake section being combined in a housing to form one structural unit, b. the housing being divided by a piston into two spaces (106, 107), of which one of the two spaces serves as pressure space for actuating the service brake section, and the spring force accumulator spring of the spring force accumulator section being arranged in the further space on the opposite side of the piston, c. the spring force accumulator spring acting in the space on a further spring force accumulator piston which can be locked with respect to the piston by means of a pneumatically actuable locking mechanism and can be released from the locking mechanism by release of the latter, and which is connected directly or via further elements to a piston rod for actuating the vehicle brake, d. after the release of the locking mechanism, the spring force accumulator spring acting between the two pistons (104, 110) and displacing them relative to one another in the case of a parking brake operation, e. at least one or more pneumatic valves (1412, 142, 143) being integrated into the brake cylinder in order to actuate the brake cylinder, characterized in that f. at least one pneumatic valve (141, 142) which is actuated as a function of the location of the accumulator spring in the case of braking operations is integrated into the brake cylinder in order to actuate the brake cylinder. a. a spring force accumulator brake section for carrying out parking brake operations by means of a spring force accumulator spring, and a service brake section for carrying out service brake operations which are actuated by compressed air, the spring force accumulator brake section and the service brake section being combined in a housing to form one structural unit, b. the housing being divided by a piston into two spaces (106, 107), of which one of the two spaces serves as pressure space for actuating the service brake section, and the spring force accumulator spring of the spring force accumulator section being arranged in the further space on the opposite side of the piston, c. the spring force accumulator spring acting in the space on a further spring force accumulator piston which can be locked with respect to the piston by means of a pneumatically actuable locking mechanism and can be released from the locking mechanism by release of the latter, and which is connected directly or via further elements to a piston rod for actuating the vehicle brake, d. after the release of the locking mechanism, the spring force accumulator spring acting between the two pistons (104, 110) and displacing them relative to one another in the case of a parking brake operation, e. at least one or more pneumatic valves (1412, 142, 143) being integrated into the brake cylinder in order to actuate the brake cylinder, f. at least one pneumatic valve (141, 142) which is actuated as a function of the location of the accumulator spring in the case of braking operations is integrated into the brake cylinder in order to actuate the brake cylinder.