Abstract: A hydraulic brake system for automotive vehicles has a master brake cylinder connected to an unpressurized reservoir and a brake line connected to a working chamber of the master brake cylinder and leading to pressure control valves of a brake slip control device. The pressure control valves are followed by wheel brake cylinders. The working chamber of the master brake cylinder is connectible to a pressure medium source upon the starting of the brake slip control device. The outlet pressure of the pressure medium source lies above the maximum braking pressure achievable by applying the master brake cylinder. The working chamber's front side (away from the first master cylinder piston) is sealed by a second master cylinder piston sealedly arranged within the master cylinder. The second master cylinder piston is sealed relative to the master cylinder by a non-return valve gasket.

Abstract: An internally stradding type disc brake for automotive vehicle is disclosed including a brake ring having opposing friction surfaces and spaced apart connecting elements extending radially from the periphery of the brake ring. A brake carrier having spaced apart axially extending connecting sections is provided for wherein each connecting section extends across a space between adjacent connecting elements of the brake ring and are welded to the connecting elements on opposite side of the space.

Abstract: In a skid-controlled brake system including a diagonal division of the brake circuits (I and II), the wheel brakes (31 to 34), through main brake lines (62, 63) and branch lines (47 to 50), are in communication with the master cylinder (2) of the brake pressure generator (1), with inlet valves (24, 25 and 29, 30, respectively), open in de-energized position, being provided in the branch lines. Moreover, in-flow lines (45, 46) provided with check valves (38, 39) are couupled to the main brake lines (62, 63), through which, in the event of a locking tendency of the vehicle wheels, pressure fluid is delivered by two hydropumps (21, 26) into the brake circuits (I, II) causing the pistons (6, 7) of the master cylinder (2) to be restored against the pedal force (F) and the central control valves (10, 11) located in pistons (6, 7) to be opened thereby enabling pressure fluid to flow off into the tank (20).

Abstract: This invention relates to an electric switch, especially to a steering column switch. The switch comprises an insulation plate, a switch lever and a switching member, which are jointly swivellably mounted on the insulation plate in a swivelling plane extending perpendicular to a swivelling shaft and which are tiltable from this plane. In the swivelling plane, the lever and switching member can occupy several operating positions. The various operating positions are defined by a locking cam and a detent. One of these two elements is positioned on a locking lever. One end of said locking lever is swivellably mounted about a shaft parallel to the swivelling shaft of the switching member and the locking member is resiliently prestressed against the switching member.

Abstract: An automobile seat having an extendable-retractable protective covering for protecting the seat against exposure to the sun and soil is disclosed. The seat includes a retractable-extendable rolled covering mounted at the front of the seat below the seat bottom and behind a seat trim piece. The covering includes a combination retention member and grasp engaged to the trim piece to hold the shade in its stored position and providing for finger engagement to extend the covering over the seat.

Abstract: Above the level of a toothed disc (26), a sensor is fastened to a base member (23) by means of a lateral retaining arm (24). The retaining arm contains a guide bore (13) which extends vertically to the fastening surface (12) of the base member (23) and which receives in a sliding fit a substantially circular-cylindrical carrier member (11) which is formed with a central bore (33) for receiving a fastening bolt (15) screwed into a threaded bore (22) of the base member (23). The carrier member (11) extends into the inside of the guide bore (13) and terminates in an upper annular end surface (10). A circlip (14) whose external diameter corresponds to the diameter of the guide bore (13) seats on the end surface. In the area of the circlip, the bolt (15) has a cone-like enlargement (16) which, when the fastening bolt (15) is tightened, will be seated on the circlip (14) and press it axially against the carrier member (11) and radially against the wall defining the guide bore (13).

Abstract: A slip-controlled brake system for automotive vehicles equipped with a deceleration-sensitively actuated brake pressure modulator (1) comprising a shaft (7) rotating together with the wheel (6) and an inert mass (8) arranged on said shaft. If a critical wheel deceleration is exceeded, the inert mass (8) is axially displaced on the shaft (7) by an arrangement comprising a ball (10) and an inclined ramp (9), and the brake pressure in the wheel brake (5) of the associated wheel (6) is, by way of a lever (16) actuating a brake pressure control valve (17), thus controlled, that is maintained and/or reduced. The rotating inert mass (8) which, due to its inertia, at first continues to run at unreduced speed when the control action sets in, is slowed down to the rotational speed of the shaft (7) by a force depending on the instantaneous brake pressure in the wheel brake (5). During the control phase, the reference quantity (v.sub.

Abstract: A brake power-controlled brake device for automotive vehicles is provided with a hydraulic master cylinder (11) which is, via a pneumatically actuated pressure modulator (12), connected to at least one wheel cylinder brake circuit I. The pressure modulator (12) comprises a vacuum power generator (20) and a compensating cylinder (18) equipped with a hydraulic piston (16, 16' or 16"), connected to which compensating cylinder is the wheel cylinder brake circuit I. If a brake slip signal occurs, the piston wall (14) of the vacuum power generator (20), which piston wall is normally applied by a vacuum on both sides, is temporarily connected with a higher pressure in the direction in which the volume in the compensating chamber (32) is increased. In addition, an isolating valve (15) is provided which is normally open but is closed when a brake slip signal occurs, and which is inserted in the connecting line (19) from the master cylinder (11) to the compensating chamber (32).

Abstract: A brake system is disclosed including a tandem master cylinder with a vacuum brake power booster and wheel brakes connected to the tandem master cylinder by brake lines. Each brake line contains a braking pressure modulator of a brake slip control appartaus, and interposed between the braking pressure modulators and the wheel brakes are braking pressure regulators which serve to reduce the pressure in the wheel brakes in relation to the pressure in the brake lines. To avoid impairment of the control behavior in the event of anti-lock control, the wheel brakes inserted after the braking pressure regulators are connectible by lines and solenoid valves in the braking pressure modulators directly to a return line leading to a supply reservoir.

Abstract: In a traction slip-controlled brake system for automotive vehicles, comprising an auxiliary pressure source and a pedal-operated brake valve through which pressure fluid from the auxiliary pressure source can be applied to the wheel brakes. A first valve switchable from a locking position into a passage position is switched into a pressure fluid conduit leading from the auxiliary pressure source to the wheel brakes of the one motor vehicle axle, and a second valve is switched into the brake conduit connecting the wheel brakes of the said motor vehicle axle to the brake valve. The said second valve can switch over from a passage position into a locking position. Moreover, a check valve is provided in the line section connecting the first valve to the wheel brakes of the one motor vehicle axle, with the said check valve precluding a flow back of pressure from the wheel brakes to the first valve.

Abstract: A method and apparatus for monitoring and controlling a slip-controlled brake system wherein the wheel rotational behavior is ascertained and wherein, on detection of a tendency to lock, the braking pressure in the wheel brakes is kept constant or varied temporarily. The slip control of the front wheels is deactivated on the occurrence of a malfunction of the slip control unit which would result in locking or an inadmissible strong tendency to lock of a first rear wheel and deactivating or maintaining the slip control of the front wheels as a function of the wheel rotational behavior of the second rear wheel.

Abstract: A slip-controlled hydraulic brake system which comprises a master cylinder and an auxiliary-pressure supply system is equipped with a travel-responsive switch actuatable by a piston of the master cylinder. An auxiliary-pressure supply system is used for the purpose of pressure delivery during the stop control phase and to safeguard a reserve volume or reserve stroke in the pressure chambers of the master cylinder. To this end, the auxiliary-pressure supply system will be activated and, if need be, check valves will be changed over on attainment of a limit value by virtue of the travel-responsive switch.

Abstract: A hydraulically actuated wheel brake with a built-in control device comprising a brake piston including two pressure surfaces each of which defines a different one of two working chambers. The pressure fluid inlet is connected directly to one of the two working chambers and via a valve to the other of the two working chambers, the valve being actuatable upon attainment of a predetermined value of inlet pressure. The brake piston has a step in its outer periphery whose surface provides one of the two pressure surfaces. The piston is guided exclusively at its outer periphery in a cylindrical bore of a housing. Since only two parts are disposed concentrically in each other, there results ease of manufacture and a minor susceptibility to failure.

Abstract: The present invention provides an apparatus and method of utilization of the same of a recliner seat latch which is infinitely adjustable and pawl locking mechanisms. A preferred embodiment of the present invention utilizes a torsional spring to allow infinite adjustment and also has a backup pawl member which engages directly with the clutch gear of the seat latch assembly.

Abstract: The present invention discloses a pressure regulator including a regulating valve disposed in a housing between an inlet and an outlet, with the regulating valve being provided in a regulating piston. The regulating piston is displaceable, in pressure-sensitive manner, against a control force. The valve also includes an inertia element movable in a manner sensitive to acceleration and driving a control piston. To provide a pressure regulator that is inexpensive to manufacture and easy to assemble and having a dynamic pressure characteristic, there is provided a pressure chamber between the control piston and the valve seat of the inertia element which is connected to the main bore, with the volume of the pressure chamber being variable against the force of a resilient element.

Abstract: A hydraulic brake system provided with a wheel slip control means (2) for use with automotive vehicles, comprising a master cylinder (2) pressurizable by a hydraulic force booster (1), wherein valve devices (32,33 and 34, 35, respectively) are provided between the master cylinder (2) and the wheel brakes (25, 26 and 30, 31, respectively) connected to the master cylinder. Pressure fluid is dischargeable through the valve devices from the wheel brakes 25, 26 and 30, 31, respectively) with pressure fluid discharged from the wheel brakes being replenishable by pressure fluid from the pressure chamber (10) of the hydraulic force booster (1) or an auxiliary pressure source (49). During the slip control, a stroke movement of the pedal brake (8) is effected in order to enable the hydraulic brake system to be employed both as a brake-slip-controlled system (ABS-system) and as a traction slip-controlled system (TSC-system).

Abstract: A hydraulic force booster for actuating master cylinder pistons in brake systems of automotive vehicles, comprises a lever system including two levers (33,34) pivotably interconnected by way of a journal (35). The second lever, by way of a coupling (45) is in communication with a set element (46) provided at the control piston (13) of a brake valve (9). The coupling (45) comprises a coupling element (53) provided at the second lever (34), and at least one guide surface provided at the set element (46) is connected to the control piston (13) by way of joint (47) and, at the other end, by providing another joint (48), is guided in a substantially co-axial housing bore (49). The coupling element (53) can be formed by a loose roller thereby substantially precluding that transverse forces be exerted on the control piston (13) of the brake valve (9) likely to result in lockings.

Abstract: A skid-controlled brake system comprising a pedal-operated vacuum booster (3) including a master cylinder (2) connected by way of brake lines (63, 64) to the wheel brakes (31, 32, 33, 34). The system further comprising a hydraulic auxiliary pressure supply system connected, by way of supply lines (24) to the brake circuits and including a hydraulic pump (26). A pressure compensation and pressure fluid reservoir (20) is provided. Wheel sensors (S.sub.1, S.sub.2, S.sub.3, S.sub.4) and electronic switching circuits (44) are provided for detecting the wheel rotating pattern and for generating electric brake pressure control signals to control, for skid control, an electromagnetically operable 3-way/2-position valve inserted into each brake line (63, 64).

Abstract: A device for automotive vehicles for both traction control and cruise control is equipped with a common servo motor (13) which, by way of a self-locking gear (14), by way of a switchable friction gear (17) and by way of a linkage (23, 24; 25, 26) acts upon a transmission device interposed into the path of force transmission from an accelerator pedal (1) to the throttle-flap (2) of an internal-combustion engine or to the adjusting lever of the injection pump of a spark-ignition engine. Depending on the switch position of the friction gear (17), the servo motor (13) permits control of either the traction (VR) or the speed (GR). During traction control, a release of the accelerator pedal (1) leads at any time to closing of the throttle-flap (2), while an increase of the pedal force does not have any effect on the position of the throttle-flap. After the activation of cruise control, it is still possible to increase the engine power by further depressing the accelerator pedal (1).

Abstract: An automobile seat having an infinitely adjustable thigh support is disclosed. The seat includes an air operated bladder mounted between a rigid extension on the seat bottom frame and a padded thigh support member pivotably mounted to the seat bottom frame at the thigh location of an occupant of the seat. The thigh support member is positionable at any of an infinite number of intermediate support positions with the thigh support cushion maintained in contact with the seat cushion at all positions of the thigh support.