Abstract: A parking brake for vehicles, which guarantees safe parking from the very first time it is actuated, comprises a drum and at least one shoe intended to press against a cylindrical surface formed on the inside of the drum, recesses and projections being provided on said surface.

Abstract: A parking brake for vehicles, which guarantees safe parking from the very first time it is actuated, comprises a drum and at least one shoe intended to press against a cylindrical surface formed on the inside of the drum, recesses and projections being provided on said surface.

Abstract: A disc of a disc brake for vehicles in general and for high-performance cars in particular, which is of unusually low weight, comprises a hub and an annular brake member traversed by ventilation ducts extending between an internal annular face element and an external annular face element of the annular brake member interconnected by bridging columns, a projecting portion of the brake member being embedded in the hub during the manufacture of the hub by casting in a light alloy.

Abstract: A disc for a ventilated disc brake, particularly for racing cars, which has the advantage of exceptional resistance to both thermal and mechanical stresses, comprising a brake ring and a bell-shape support, in which the brake ring is structurally independent from the bell and is formed from two ring elements separated by an air space and connected by spacer elements, and is attached to the bell by way of the spacer elements.

Abstract: A disc brake which allows immediate visual checking of the wear of the pad includes a caliper body straddling a disc, a pad supported in the caliper body by a metal plate in a position facing the disc, an indicator rod attached to the plate and extending outside the caliper body, and a visible reference associated with the caliper body and facing the indicator rod.

Abstract: A bypass valve-delay valve assembly for an electric-hydraulic braking system of an electrically driven vehicle which includes a bypass valve section in which the hydraulic braking circuit ducts are obstructed by a solenoid operated valve activated by an electric signal generated by brake pedal depression, and a delay valve section in which the hydraulic fluid is obstructed by a delay valve arranged in a regulator piston whose maximum stroke equals the pressure corresponding to the maximum energy recovery performance generated by the electric drive motors' braking action. Pressure exceeding the maximum energy recovery performance of the drive motors causes the delay valve to open adding hydraulic braking to the electric drive motor braking.

Abstract: Braking system for electrically driven vehicles, equipped with electric motors on the four wheels, consisting of a combined electric-hydraulic system including at least one hydraulic circuit mated to at least one pressure transducer or sensor connected to control centers for the electric motors.

Abstract: In a disc brake of the type including a caliper body straddling a disc and having pads on opposite sides of the disc, the pads are elongate in a direction tangential to the disc and have hook-shaped ends engaged with respective pins extending parallel to each other in a mutually spaced relationship in the caliper body.

Abstract: An antiskid device for a brake system of a motorvehicle and the like, effective to prevent jamming of a wheel and at the same time ensure a braking action thereof which is consistently the equal of the best possible relatively to the road surface, comprises an on-off valve placed in a line conducting the braking fluid from a master cylinder to a braking cylinder of said system, a wheel deceleration sensor effective to generate a wheel skidding signal continuously, a surge chamber put into communication with said line downstream of said on-off valve a piston movable within said surge chamber, and a control means for said piston driven continuously by said wheel skidding signal.

Abstract: A disk for use with disk brakes, which can perform in a vibration-free manner with uniform heating, comprises a braking band formed by two annular rings in mutually spaced apart relationship and interconnected by small heat radiating pillars distributed in between the rings according to a quincunx type of arrangement.

Abstract: In a disc brake, a caliper body straddles the disc and carries disc engaging brake pads therein. The caliper body is rotatably mounted to the brake support by means of a guide including a pin on the downstream side of the pads. The caliper body is releasably secured in the brake support by means of a movable stop upstream of the pads. Threaded retainer pins engage portions of the pads to retain them within the caliper body and at the same time draw opposed portions of the caliper body together with a predetermined force.

Abstract: A disc brake in which a caliper body (3) is movable relative to a support (2) in the direction of the axis of the disc so as to locate itself on the disc. For this purpose the disc brake includes guide means (6) between the caliper body (3) and the support (2) including a pin (16) fixed to the support about which the caliper body is rotatable as well as two stop shoulders (27, 28) provided in the support and engageable with the caliper body to retain it angularly between them. Dual purpose gudgeon pin bolts (39,42 and 40, 43) not only exert a gripping force on the caliper body but also cooperate with end hook portions (41) of the respective pads on opposite sides of the disc to retain the pads in the caliper body against drag from braking.

Abstract: A brake system for motor cycles is disclosed which includes a hydraulic master cylinder supplying a front brake and a rear brake and a pressure-regulating valve having a calibrating spring adapted to limit the maximum pressure on the rear brake to a predetermined value. The compression of the calibrating spring of the pressure-regulating valve is controlled by the relative motion of two distinct points on the rear shock spring.