Abstract: The present invention mainly relates to an improved-safety braking device, intended for reducing the injury risks concerning the driver, owing to the brake pedal if a collision happens, in particular a front impact and, more particularly, the invention deals with an electrohydraulic braking device having a variable hydraulic reaction. A braking device according to the present invention comprises a master cylinder (1) fitted with a pedal-feeling simulation cartridge (3), said master cylinder (1) being actuated by an actuating rod (11) connected to a brake pedal (12), said cartridge (3) comprising a resilient means (29) and compression means (38) for the resilient means (29). These compression means (38) can be actuated by a computer (81) on the detection of an injury risk concerning the driver's legs, so as to reduce the compression rate of the resilient means (29).

Abstract: A braking device, particularly for a motor vehicle, comprising a master cylinder (10) associated with a pneumatic booster (12), and a vacuum pump (36) to create a vacuum in the vacuum chamber (16) of the booster, characterized in that the vacuum pump (36) is fixed to the envelope (14) of the booster on the inside of the latter within the vacuum chamber (16).

Abstract: A sensor module including a processing unit, a stroke sensor and a force sensor (3) for obtaining data relating to both a force exerted on an axially-moving rod (1) and the travel of the rod through a determination of the position of the piston (2) with respect to the rod (1). The sensor module is characterized by a first stationary electrical coil (5) that is arranged about the piston (2) and the rod (1) and a second moving electrical coil (6) that is disposed about the rod (1) and connected to the force sensor (3). The first (5) and second (6) coils are coaxial and as a result induced oscillatory voltage within the stationary coil (5) generates an eddy current within the piston (2) that permit a measurement of the stroke of the piston (2) by means of eddy-current signal received by the stroke sensor using the piston (2) as a test body, and supplying the force sensor with electrical power through the second moving electrical coil (6).

Abstract: A trailer having a floor with first and second sidewalls covered by a roof to define an enclosed structure. The floor is divided by a plurality of ramped gates that are retained in first and second rails defined by a series of vertical sections that are connected through splitter section to a series of horizontal section. Vertical sections of the first rail are offset from the vertical sections of the second rail. A first roller assembly for a gate is retained in the first rail while a second roller assembly is retained in the second rail. On entry to the enclosed structure through a rear door, a gate is moved from a stored horizontal position to a vertical position to create an individual ramped stall while the gate is moved from the vertical position and returned to the stored position to allow egress through a forward door.

Abstract: A corner module for use in a motor vehicle having a bearing pack through which a wheel hub for the motor vehicle is connected with a support member. The bearing pack includes an inner race and an outer race for retaining first and second roller elements such that a wheel attached to the hub may rotate with respect to the support member. The bearing pack is characterized by an exciter ring that is located between the first and second roller elements and the outer race is characterized by an opening that is in radial alignment with the exciter ring. A sensor that is fixed to the support member has a functional length and a sensing area that extends through the radial opening in the outer race and into the bearing pack to a position adjacent the exciter ring such that the functional length and sensing area is protected from exposure to contamination that may be present in the environment.

Abstract: A pneumatic brake booster comprising an envelope formed of two shells (3, 5) defining an interior volume divided into two chambers by a skirt mounted so that it can slide with sealing. The skirt (7) is actuated by a pressure difference brought about by the operation of a three-way valve (17) arranged in a pneumatic piston arranged more or less in the central part of the skirt. The booster also comprising means (53) for reducing the noise, characterized in that the means (53) are bearing means comprising a layer of elastomer arranged between one of the shells (3, 5) and a rigid element.

Abstract: A master cylinder having a housing with first and second bores that are connected to a same circuit in a braking system. A first piston is sealingly retained in the first bore to define a first chamber and a second piston is sealingly retained in the second bore to define a second chamber. The first piston has of a first cylindrical member that is connected to a second cylindrical member by a shaft. The shaft includes an actuation and a retraction ramp that terminate at an apex. An input force applied to the second cylindrical member is directly applied through the shaft to the first cylindrical member and through the actuation and retraction ramps to the second piston to respectively communicate fluid simultaneously to the same circuit.

Abstract: A pneumatic brake booster comprising a rigid casing (10) locally shaped into a hollow shaft (3), a hub (5) slideably mounted in an opening (30) of the hollow shaft (3), an annular seal (6) inserted between the hub (5) and the hollow shaft (3), and members designed to set the hub (5) in a rest position with respect to the hollow shaft (3). The seal (6) comprises an elastomeric material (61) shaped into an annulus and an annular metal insert (62), the position-setting members (71, 72) being partially formed by the insert (62).

Abstract: A master cylinder and booster device for a motor vehicle braking system, in which the master cylinder (10) and the booster (12) are assembled to form a one-piece entity comprising a small reservoir (20) of brake fluid mounted on the master cylinder (10) and connected by a flexible duct (22) to a separate brake fluid reservoir (24) secured temporarily to the entity (10 12) for the purposes of delivering it to a motor vehicle manufacturer.

Abstract: A master cylinder having a body with a bore therein delimited by a piston into a work chamber and a supply chamber. The work chamber (16) is connected to wheel brakes, while the supply chamber is connected to a fluid supply, through a supply duct. The piston has a shank retained by a guide ring mounted in the bore and a head bears against a thrust ring in a rest position. A first end of the supply duct is connected to the fluid supply, while a end is connected to the supply chamber. A hydraulic damping arrangement that dampens movement of the piston toward the thrust ring and includes structure for shutting off the second end of the supply duct such that brake fluid flows at a reduced flow rate from the supply chamber to the supply duct through at least one exhaust duct.

Abstract: A process for manufacturing a corner assembly for a vehicle. A wheel hub is partially machined to define a journal section and a radial mounting flange on an out-board surface of the hub. Bolts are pressed into axial openings in the mounting flange and the hub further machining to produce a concentric wheel pilot, rotor pilot and bearing journal surfaces that are perpendicular to radial faces on an out-board surface of the mounting flange. The hub is pressed into a bearing retained of a support member and a rotor is placed on the rotor pilot surface such that the bolts extend through openings located on the inner peripheral surface of the rotor. The hub is rotated to gage lateral deflection with respect to its axis. If the deflection is less than 0.06 mm, the wheel hub and rotor are accepted for installation on a vehicle and rejected if greater that 0.06 mm.

Abstract: A brake booster (10) having a housing defined by joining a substantially circular first shell (12) to a second shell (14) to compress a first bead (100,200) on a diaphragm (102,202) secured to a movable wall (76) and seal an interior thereof from the surrounding environment. The movable wall (76) includes a hub (44) with a disc (74) having an annular groove (70) located adjacent a peripheral surface (72) for receiving a second bead (104,204) on the diaphragm (102,202). The diaphragm (102,202) is characterized by a resulting cylindrical body (116,216) with a first section (215) that transitions from the first bead (100,200) and a second section (217) that transitions from the second bead (104,204). The first (100,200) and second (104,204) beads each have an initial oval shape that is stretched into a circular shape for respective retention between the first (12) and second (14) shells and annular groove (70) in sealing a front chamber (50) from a rear chamber (52).

Abstract: A pneumatic brake booster for a motor vehicle wherein movements of a control rod (38) determine the openings and closings of at least one axial intake valve (52) and at least one equalizing valve (50). The intake valve (52) being inserted between a pressure source subjected to the pressure (Pa) higher than the first pressure (P1) and a rear chamber (18) of the booster, and the equalizing valve (50) being inserted between a front chamber (16) and the rear chamber (18) to actuate a moving partition (14) located between the front chamber (16) and the rear chamber (18). A tubular element (76) of that is axially offset transverse faces (78, 80) comprised of first elements (82, 84) for sealing the axial intake and equalizing valves (50, 52).

Abstract: A master cylinder having first and second chambers respectively connected to a reservoir and to front and rear wheel brakes in a brake system. First and second center port compensation valves each have a head that is connected to a stem that joins a first retainer with a second retainer to cage a first spring of the first and second, resilient means. Each head is urged into engagement with a seat by a second spring to terminate communication from between the bore and reservoir on compression of the first spring in response to an input force being applied to the first piston to initiate a brake application. The head has a cylindrical body with an annular axial projection that extends therefrom to define a face and a resilient ring that surrounds the annular projection with a lip that axially extends beyond the face.

Abstract: A fuse device for a pneumatic brake booster, characterized by a hollow cylindrical first part (21) with a first end (25) having an inside diameter (d1) and a bowl-shaped second part (24) with a circular bottom equipped on its central external part with a roughly cylindrical stud (29) of an outside diameter (d2) slightly greater, within the tolerances, than the inside diameter (d1) of the end of the hollow cylindrical first part (21). The outside diameter (d2), allowing the hollow cylindrical first part (21) to be secured to the bowl-shaped second part (24) by forcibly inserting the stud (29) into hollow end (25) of smaller diameter (d1). The bowl-shaped second part (24) having a circular external groove (30) whose purpose is to weaken the connection between the stud (29) and the bottom (26) of the bowl-shaped second part (24) when a pair of forces is applied to the fuse device to allow the hollow cylindrical first part to detach from the bowl-shaped second part.

Abstract: An anchor having first and second rails to align first and second friction members with a rotor. The first and second friction members are moved into engagement with the rotor to effect a brake application. The anchor has projections that extend from the first and second rails and are aligned with the rotor. The thickness of a friction member is reduced by wear through the engagement with the rotor. Each friction member is attached to a carrier by a first inwardly projecting lip on a first end and a second inwardly projecting lip on a second end that has a length that corresponds to an initial thickness of a friction pad plus one-half the width of a projection. During a brake application the lips either engage projections on the first rail or projections on the second rail such that braking forces are communicated into the anchor without the introduction of a moment that could effect the uniform application of force from the friction member on the rotor.

Abstract: Hydraulic master cylinder for a motor vehicle braking circuit, comprising means for concealing the dead travel of the primary (16) and secondary (44) pistons, these concealing means consisting of additional valve shutters (80) borne by the valve shutters (26, 56) that shut off the axial passages (22, 58) formed in the primary (16) and secondary (44) pistons, these additional valve shutters allowing the pressure in the primary (18) and secondary (52) chambers to increase right from the start of movement of said pistons over their dead travels.