摘要:
The invention relates to a hydraulic control disk brake comprising a hydraulic actuation parking brake, that comprises a brake caliper (12), a first piston (16), a piston rod (120), a wheel (120) for locking the piston rod (120), a transverse axial abutment plate (100), an intermediate cavity (IC), and a rear cover that is connected to a rear axial end (68) of an intermediate tubular body (63), in which a secondary hydraulic cavity (SHC) is formed. Said disk brake is characterized in that the transverse abutment plate (100) is generally disk-shaped and has a peripheral portion (101) that is mounted such as to be axially clamped between two portions facing the rear end of the tubular body (63) and the front end of the cover (74).
摘要:
The invention relates to a combined service and parking brake cylinder (1), containing a service brake chamber (6), which is delimited by a diaphragm (10), which actuates a brake mechanism against the effect of a return spring (14) via a thrust rod (18), and a parking brake cylinder (4) with a control chamber (49) for controlling an interlockable parking brake piston (30). The service brake chamber (6) is formed between the one diaphragm (10) and a further diaphragm (22), which is connected to the parking brake piston (30) and can be moved together therewith in the brake engaging and brake disengaging direction, wherein, upon the service brake being requested, the control chamber (49) of the parking brake piston (30) is pressurised in order to bring the parking brake piston (30) together with the diaphragms (10, 22) into an air clearance overshoot position, and the parking brake piston (30) is then interlocked in the air clearance overshoot position, and the service brake chamber (6) is then pressurised in order to actuate the one diaphragm (10) relative to the further diaphragm (22) in the brake engaging direction, thereby generating the service brake force.
摘要:
Eine Feststellbremse (10) für ein Fahrzeug, mit wenigstens einem Bremselement (12) und mit wenigstens einem Stellglied (20), mittels welchem das Bremselement (12) zwischen wenigstens einer zumindest ein Rad des Fahrzeugs blockierenden Bremsstellung als erster Stellung und wenigstens einer das Rad freigebenden Lösestellung als zweiter Stellung bewegbar ist, wobei das Stellglied (20) als magnetischer Aktor (20) mit wenigstens einem Magnetelement (24) ausgebildet ist, mittels welchem jeweilige magnetische Kräfte zum stabilen Halten des Bremselements (12) in beiden Stellungen bewirkbar sind.
摘要:
A brake actuator (10) having a housing (12) in which is provided a movable brake actuating assembly (18, 30), the brake actuating assembly (18, 30) being movable between a brake apply position which, in use results in the application of a brake to which the actuator (10) connected, and a brake release position which, in use, results in the release of the brake, the brake actuator (10) further including a lock (34) which is operable to prevent movement of the brake actuating assembly (18, 30) from the brake apply position to the brake release position, the brake actuating assembly (18, 30) including a first movable member (18), a second movable member (30) and a resilient biasing element (32) which extends between the second movable member (30) and the first movable member (18) and which, if one of the first or second movable members (18, 30) is moved relative to the other from an equilibrium separation, exerts a force tending to return the first (18) and second (30) movable members to the equilibrium separation, the brake actuator (10) further including compliance control chamber (50) between the first movable member (18) and the second movable member (30), the compliance control chamber (50) having a port (58a) and being sealed such that flow of fluid into or out of the compliance control chamber (50) other than through the port is substantially prevented.
摘要:
A parking brake device arranged so that a parking brake state is obtained by the operation of forwarding a parking piston (33) in response to the action of a parking control liquid pressure, while the forwarding state of the parking piston (33) is mechanically locked by a lock mechanism (43). Furthermore, the input member (23) of a brake mechanism (11) and the parking piston (33) are connected by a connecting means (35). A piston (44) possessed by the lock mechanism (43) is actuated in one axial direction at the time of the operation of forwarding the parking piston (33), so that a lock section (46) provided at one end of the lock piston (44) engages an engaging section (45) from behind while standing astride the intermediate section of the connecting means (35), which engaging section (45) is disposed in the intermediate section of the connecting means (35). This makes it possible to obtain an automatic parking brake state by a simple construction not involving electric power consumption.
摘要:
A hydraulically actuated disc brake comprising at least two brake pistons (5, 6) acting upon a brake lining (3), arranged in a brake housing (1), is characterized in that the hydraulic disc brake comprises a hydraulic synchronization device (10) for reducing oblique wear of the brake lining (3), which is interposed between an input pressure line (19) for brake actuation and the brake piston.
摘要:
The invention concerns a disk brake for vehicles that includes a turning brake disk (11) connected to a wheel (10) or to its rotation axle (14) and at least one primary brake calliper (12) connected to a non-turning part of the wheel supporting structure, and an additional brake calliper (13) angularly movable in relation to the primary brake calliper. The primary brake calliper and the additional brake calliper are managed at least to engage alternately with said disk. The additional brake calliper is activated and moves in a direction in relation to the primary brake calliper when the latter is inoperative and in the opposite direction when the additional brake calliper is in an inoperative position and the primary brake calliper is operative, to cause a progressive angular rotation of the brake disk and wheel it is associated with.
摘要:
A parking brake system is provided in which a parking brake state for a wheel brake (2A) is obtained by forward movement of a parking piston (44) slidably fitted into a casing. (23) with the rear side of the parking piston (44) facing a parking control fluid pressure chamber (47), and the forwardly moved state of the parking piston (44) is mechanically locked by spheres (58) pushed up as a result of forward movement of a lock piston (56) of a lock mechanism (31). Moreover, a plurality of guide grooves (12)6, into which parts of the spheres (58) are rollably fitted, are provided on the inner face of a large diameter hole (38), the inner face of a restricting step (42), and the inner face of a small diameter hole (39), the guide grooves (12)6 having a concavely curved cross-sectional shape and extending in the axial direction of an insertion shaft (59). This enables an automatic parking brake state to be obtained by a simple structure without consuming power.
摘要:
The invention relates to a brake that comprises a brake caliper (12), a main piston (16), and a piston rod (100) that is axially movable with the main piston (16), in relation to the housing (14), characterized in that said brake comprises: a secondary hydraulic cavity; and a secondary piston (82) that is slidably mounted into the secondary hydraulic cavity in which said secondary piston defines, axially toward the front, a secondary hydraulic chamber (24S) and is capable of engaging with the piston rod (120) such as to exert a secondary axial thrust force (SBF) on same, from the rear to the front, when the secondary hydraulic chamber (24S) is supplied with pressurized fluid.
摘要:
The brake or coupling system (1) comprises a first piston (2) arranged in a first piston cylinder (3) thereby forming a first piston chamber (5) and a second piston (8) arranged in a second piston cylinder (9) thereby forming a second piston chamber (10). The first piston (2) is adapted to be displaced between a braking position and a rest position. The first piston (2) is spring biased in the direction of its rest position, and the second piston (8) is adapted to adjust a distance (X) provided between a friction element (6) and a rotatable element (7) in the rest position of the first piston (2) by means of adjustment of a volume of hydraulic fluid trapped in the second piston chamber (10). At least one spring element is arranged to act between the first and second pistons (2, 8). The first and second pistons (2, 8) are so arranged that a hydraulic pressure in the first and second piston chambers (5, 10), respectively, will urge the first and second pistons (2, 8) in opposite directions, thereby biasing the at least one spring element.