INSIDE CALIPER DISC BRAKE

1,183,010. Disc brakes. FORD MOTOR CO. Ltd. 3 May, 1968 [3 May, 1967], No. 21084/68. Heading F2E. In a spot-type disc brake in which two function pad assemblies 66, 70, 72, 76, Fig. 4, are applied to the rotating disc brake 28 by a floating caliper 56 actuated by a fluid pressure operated piston 84 and cylinder 82 assembly, the caliper housing and function pad assemblies are all slidably mounted on two pins 50, 52, Fig. 1, arranged parallel to the axis of rotation of the disc and mounted in a torque reaction member 34. As described, the disc 28 is annular and attached by screws (30), Fig. 6 (not shown), at its outer edge to a member 26 attached to a vehicle wheel hub, the caliper being mounted within the disc to straddle its inner edge. The caliper housing is provided with its pairs of arms 58, 60 having semicircular recesses at outer ends which are located on two pins 50, 52, arranged with their axes parallel to the axis of the vehicle wheel, the pins being held in place in semicircular recesses 46, 48 in the ends of arms 38, 40 of torque reaction member 46 bolted to the wheel spindle (12), the arms 38, 40 being positioned axially between the pairs of arms 58, 60 of the caliper housing. Similarly each frictionpad-support-plate 70, 72 is provided with two arms (58), (60), Fig. 5 (not shown), each provided with a semicircular recess in its end, which are located one round each pin. To cool the member 26, to which the disc 28 is screwed, it is shaped at its circumference to provide gaps between the disc 28 and the member 26 through which air can flow.