Abstract: Predetermined types of anti-locking brake systems equipped with a master cylinder and a pump, for controlling the pump, requiring sensors for detecting the position of the master piston within the longitudinal bore 7 of the master cylinder housing 1. Way sensors or way switches are provided for this purpose. The present invention provides a simple arrangement of this type of sensor comprising a reed contact 18 and an annular magnet 20, with the reed contact 18 being cast into a stationary sealing plug 13 of the master cylinder while the annular magnet 20 is inserted into a recess 21 within an extension 9 of the master piston 6 for movement with the master piston.

Abstract: A spot-type disc brake, in particular to a disc brake straddling the brake disc internally in which a brake and essential assemblies required for that brake and a process for mounting of such a brake are provided. Particular mounting arrangements allow each of the brake shoes to be removed in a radial direction without having to disassemble the housing or parts of the housing.

Abstract: A hydraulic pump which is furnished with a bushing-type closing element (11) for the purpose of damping pulsations of pressure and of the delivery flow. The closing element (11) turns the delivery flow several times and contains a damping chamber. An optimum adjustment of the damping device is possible by varying the external diameter of the end portion (12) of the closing element (11) and by varying the reach of screw of the closing element (11).

Abstract: A vacuum brake power booster, in particular for motor vehicles, which includes a poppet valve (12) sealing two valve seats (18, 19) and which is axially deformable within the area of a rolling fold (15) also includes an annular part which is either mounted on the outside of the rolling fold (15) in a form-fit manner or arranged inside the elastic material (24) of the poppet valve (12). This annular part prevents the rolling fold (15) from being blown up outwardly due to the pressure differential prevailing between its two sides so that it will be possible to reduce the return force and thus also the response force.

Abstract: A brake valve for a vacuum brake force booster, wherein the valve body (33) is movably located on the pedal piston (32). The valve body, through two springs (35, 39) is held in a central position in which the brake pedal and pedal piston may move the valve body between booster deactivated and deactivated positions. Two electromagnets (37, 40) are provided which draw the valve body (33) both in the actuating direction and against the actuating direction. In this manner, the valve (17) can be actuated independently of the pedal force, to either release or apply braking pressure as for automatic antislip or traction control.

Abstract: Hydraulic brake systems are known wherein, for the purpose of brake control, a counterforce is built up in the booster (60) for actuation of the master brake cylinder which results in unloading the master brake cylinder. What is disadvantageous in the known system is that this counterforce also resets the pedal (pedal piston 3) so that vehement pedal movements will result from the control action. Therefore, our present invention suggests to interpose a transmission device (3, 4, 5, 6, 7) between the pedal and the actuator (booster) enabling to decouple actuator and pedal.

Abstract: A radial piston pump for a brake system in automotive vehicles. The resulting system produces little noise and is split up into various circuits. The resulting system provides damping of the pressure vibrations caused by the pump pistons. The individual channels are furnished with permanently allocated damping chambers. These damping chambers are combined with the associated outlet valves to form a replaceable construction unit (damping-chamber valve) which is adapted to a given application.

Abstract: A convertible motor vehicle is provided with two rollover bars which can be swivelled out of a lowered inoperative position into an upwardly directed supporting position and back around a swivel axis fixed at the vehicle and extending essentially in the longitudinal direction of the vehicle. The rollover protection system can be integrated into conventional vehicle concepts in a particularly space-saving and advantageous manner and reduces the risk of injury in the case of a fast, sensor-controlling swinging-up of the rollover bars.

Abstract: A hydraulic booster for slip-controlled brake systems, including a booster piston (1) arranged in a booster housing (11) and confining a booster chamber (4). A braking pressure control valve is provided whose control part (12) is actuatable by a lever mechanism (13) as a function of the piston of the control part (12). An actuating piston (2) is displaceably guided in the booster piston (1) and is positioned by way of a push rod which cooperates with the lever mechanism (13). To provide a hydraulic booster to realize boosting factors of any desired size, both of constructional and strength-minimizing nature, an annular surface (24) is formed the stepped actuating piston (2), on the side of the push rod (22) and is larger than the total area of any opposing annular surfaces, subject to the booster chamber pressure to create a net force acting to oppose the push rod force and allow setting of the boosting factor by adjustment of the area of the annular surface.

Abstract: The disclosed lever-type gear works on a variable transmission ratio, with the degree of transmission being respectively dependent on the position of the levers and the position of the roller element between the levers. According to a preferred arrangement, the gear can be so designed as to provide a state of indifferent equilibrium once a force F.sub.P is applied to the associated lever by a rod located on the driving side, which force F.sub.P changes along with the stroke s.sub.p of the rod while a constant force is applied to rod applying force to the other lever, irrespective of the stroke s.sub.M thereof.

Abstract: A friction lining warning device for a pin-guided spot-type disc brake whose caliper housing, brake carrier is slidingly arranged at a pin. A stud which engages an opening of the pin and is arranged in alignment with the pin. A switch housing surrounds the pin and is connected to the caliper housing, to the brake carrier, the pin and the stud and is movable relative to the switch housing and to the caliper housing. Electric switches in the stud, in the switch housing release when the stud has travelled a predetermined distance relative to the switch housing. The switch housing and the stud can be brought in abutment with each other to provide a basic adjustment. The switch housing is connectable to the caliper housing, brake carrier within a range of tolerance after the basic adjustment has been assumed. The stud (19, 61, 62, 91, 101, 102, 121, 141, 190, 201) is provided with a stop (29, 105) which abuts against the pin (4) in the axial direction.

Abstract: A valve arrangement has a housing in which are arranged an electromagnetically actuatable pilot valve controlling a differential pressure and a main valve actuatable by the differential pressure, the closure member of the main valve permitting a connection to be established between an outlet port and, alternatively, a first or a second inlet port. In order to keep the overall length of the valve arrangement as small as possible, the present invention provides a joint axis (29) of the pilot valve (5) and of the electromagnet (6) actuating the pilot valve (5) which is perpendicular to the axis (30) of the main valve (7) in a plane that is radially offset relative to the axis (30). In the inactive position, both compartments (23, 24) are exposed to the higher pneumatic pressure.

Abstract: Disclosed is an anti-lock brake system of the type wherein the pressure applied on the wheel brakes can be decreased by discharging pressure fluid by way of a return line wherein the brake system includes a pump whose suction chamber communicates through a suction line with a reservoir and a return line is connected to the suction chamber.

Abstract: The present invention relates to a spot-type disc brake comprising a brake housing in which two brake pads are held and guided by way of pins. According to this invention, the pins are arranged in the fringe area of the pads such that they bear against side walls of an aperture receiving the brake pads.

Abstract: An adjusting mechanism for a control member for influencing automotive vehicle engine torques. A spring-supported actuating member is articulated via pulleys at a mechanical linkage. The mechanical linkage transmits the movement of the actuating member onto a control member. The control member is influenced irrespective of the activation of the actuating member by another control variable effective, in particular, by the slip effect of driven vehicle wheels. A functionally optimized mechanical linkage is provided which has no reactive effect on the actuating member. This linkage comprises a first cable connecting link and a second cable connecting link, with the second mechanical connecting link cooperating with the control member via a pair of pulleys which are arranged on a lever and partially wrapped by the second cable connecting link.

Abstract: A pedal-actuated braking pressure generator for a brake system with anti-lock control comprising a vacuum-operated servo unit (1), which serves both for boosting the braking force and for generating an auxiliary energy opposed to the pedal force. The system further comprises a master brake cylinder (2) and a piston arrangement (3) connected upstream of the servo unit (1). The piston arrangement comprises a pedal-side piston (15), a reversing valve (18), a pressure transmission chamber (17) and a push-rod piston (19). By a multi-directional valve (5) it is possible to arrest the pedal-side piston (15) during anti-lock control. By means of the reversing valve (18), a pressure medium path is established from the pressure transmission chamber (17) to the pressure compensation reservoir (6), thereby the push-rod piston (19) is relieved in the direction of release of the brake.

Abstract: A resilient guide for the brake housing of a floating caliper spot-type disc brake for automotive vehicles in which the brake carrier is integrated into the steering knuckle. A resilient spring for a brake housing (1) of a floating caliper spot-type disc brake with a brake carrier integrated into the steering knuckle is provided.The spring arrangement comprises at least one spring (2, 7) secured to the brake housing (1) at predetermined points (A, B). The spring (2, 7) in its unloaded condition, is premounted on brake housing (1) and after assembly of the brake housing (1) is loaded on the manufacturing belt to preload the brake housing (1) against the brake carrier arms (6). Loading of the spring (2) is effected such that the center is moved toward the wheel axle, and is fixed to projections (4) of the brake housing (1) and is then supported, with extensions (5), to arms (6) of the brake carrier. The entire mounting operation advantageously can be performed by an industrial robot.

Abstract: A brake system intended for automotive vehicles provided with a brake pressure transmitter (1) which is linked to the wheel brakes through pressure medium lines, and with sensors (19 to 22, 24) which are responsive to the brake pressure or to the behavior of rotation of the wheels and by means of which the braking effect at the wheels brakes is detectable. Furthermore, separating valves (SO.sub.1, SO.sub.2, SO.sub.3, SO.sub.4, SO.sub.HA ) for shutting off the flow of pressure medium in one switching position are incorporated in the pressure medium paths leading to the wheel brakes. A monitoring circuit (3', 25') to which the sensor signals are transmittable recognizes the failure of one wheel brake and thereupon automatically commutates the separating valve located in the pressure medium path leading to the wheel brake which has failed into a valve position locking the flow of pressure medium.

Abstract: A pneumatic check valve includes valve connections having a common axis of symmetry and a valve body at least partially guided in a droplet-shaped member disposed between the two connections to substantially eliminate flow and restriction losses occurring during operation.

Abstract: For controlling the slip when braking a road vehicle and in particular for improving control in case of different friction values on the right and left vehicle sides the rotational behavior of the front wheels and, as a measure of the vehicular velocity and vehicular deceleration, the rotational behavior of the rear wheel running with a higher friction value are observed. The rotational behavior of the front wheels and the vehicular deceleration are evaluated in accordance with criteria manifesting the danger of yawing moments which are excessive with respect to the driving stability of the vehicle. Upon reaching a predetermined vehicular deceleration threshold value representative of high yawing moments, any further yawing moment increase is restricted by limiting the braking pressure or the braking pressure increase at the front wheel having a better road surface contact.