Abstract: There is provided a disk brake that can hold a required thrust force and maintain a stop state of a vehicle without increasing complexity in the disk brake even if the disk brake is operated in a high temperature state of a brake pad and then a temperature of the brake pad is reduced. In the disk brake 1, an electric motor 8 is driven to thrust a piston 6, the piston 6 presses the brake pad 5 against a disk rotor 2, and the piston 6 is held in the pressed position, the electric motor 8 is re-driven after a predetermined time from a start of holding of the piston 6, and a driving condition of the electric motor 8 after re-driving is determined based on a change in value of a current supplied to the electric motor 8 by the re-driving.

Abstract: A disk brake for a vehicle, includes: an electric motor which has a motor shaft provided with an armature and which is attached to a caliper body so as to exhibit a power for urging a friction pad toward a disk rotor; and a Hall IC for detecting a rotational angle of the electric motor. The Hall IC is disposed within the electric motor so as to be located on an outer side of a pulser mounted on the motor shaft, and is retained by a motor case of the electric motor and a sensor cover made of a synthetic resin and detachably attached to the motor case. Thus, it is possible to reduce the number of parts by eliminating a special sealing measure.

Abstract: A brake device of a railway vehicle, having at least one operating brake cylinder having at least one operating brake piston actuated by a pressurizing medium, the piston actuating an operating brake piston rod coaxial to the brake cylinder axis, and having a parking brake device having a pivotally supported actuating lever, the rotary motion thereof being transmitted to a shaft rotationally supported by at least one shaft bearing on a housing, wherein the rotary motion of the shaft induced by the actuating lever can be converted to a linear motion parallel to the brake cylinder axis of at least one support roller rotationally supported by a support roller bearing on a rotary axis disposed parallel to the shaft, in that at least one cam having an operating cam face and rotationally fixed to the shaft is provided, the cam interacting with a radially outer support roller surface of the support roller during a tightening or releasing stroke of the parking brake device, wherein the linear motion of the support ro

Abstract: An electro-hydraulic brake actuator for a vehicle can include an electric motor configured to operate at about 28 Vdc, and to operate at about 2 Amps or less to hold a vehicle brake in a disengaged position. A hydraulic master piston can be operatively coupled to the electric motor, the hydraulic master piston configured to slidingly move within a master cylinder fillable with a hydraulic fluid such that advancement of the master piston within the master cylinder varies the hydraulic pressure supplied to the vehicle brake. The electric motor and hydraulic master cylinder are configured to fit within a wheel hub corresponding to the vehicle brake, the motor configured to operate the hydraulic master piston to vary the hydraulic pressure applied to the brake.

Abstract: The invention relates to an automatic parking brake acting on a disk brake and in which the piston of the brake comprises a cavity in which there is a spring (1) allowing pressure to be applied to the end (12) of the piston cavity. A washer (5) is positioned between the inlet (13) of the cavity and the spring (1). A pressing device (4) allows pressure to be applied to the washer (5) so that it preloads the spring (1).

Abstract: Disclosed is an electric disc brake including a reduction unit having a transmission function. The electric disc brake includes a piston in the caliper housing such that the piston is movable back and forth to press one frictional pad, a spindle unit including a nut spindle member allowing the piston to move back and forth and a spindle member screwed with the nut spindle member, and a reduction unit coaxially coupled with the spindle unit, and a motor rotating the reduction unit forward and backward. The reduction unit includes a sun gear coupled with a shaft of the motor, a planet gear, a carrier coupled with the planet gear to rotate the spindle member, and first and second internal gears engaged with the planet gear to amplify a rotational force of the motor or transfer the rotational force of the motor to the spindle member without a reduction gear ratio.

Abstract: The invention relates to a combination cylinder including a service brake cylinder as an active service brake with at least one pressure-medium-actuated service brake piston which actuates a brake mechanism via a service brake piston rod, and a spring store brake cylinder as a passive parking brake with a spring store brake piston which is actuated by pressure medium counter to the action of at least one store spring, with the spring store brake piston transmitting the force of the at least one store spring to the service brake piston rod by a force-transmitting gearing in the parking braking situation. The invention provides for the gearing to be designed such that the movements of the spring store brake piston and of the service brake piston rod are coaxial and the force transmission ratio becomes greater with progressive stroke of the spring store brake piston.

Abstract: Provided is a disk brake in which a rotation control part for controlling relative rotation of a cartridge and a cylinder of a parking brake mechanism is formed at the cartridge and includes convex parts having curved surfaces and concave parts formed at the cylinder and having curved surfaces, and a spacer formed of stainless steel, resiliently fitted into an inner circumference of the cylinder and including arc part having the same shape as the concave parts is disposed between the convex parts and the concave parts.

Abstract: In a vehicle disk brake, a motor housing houses in a housing recess a case into which an end of an output shaft liquid-tightly protrudes, and is mounted to a caliper body. A reduction mechanism having an output rotating member is sealed in the case while part of the output rotating member fluid-tightly protrudes from the case so as to be coaxially and operatively connected to a rear portion of the screw shaft. Grease is charged into the case. Thus, the case for housing the reduction mechanism is simply configured while preventing leakage of the grease charged into the case, and mounting of the case to the caliper body is facilitated.

Abstract: A hydraulic brake lever assembly includes a hollow lever mount accommodating therein a hydraulic pump. Two window openings are respectively formed in opposite sides of a middle section of the lever mount and in communication with an interior space of the lever mount. The hydraulic pump includes an outer cylinder member and an inner bore member arranged inside the outer cylinder member to define a hydraulic fluid chamber therebetween. An in-flow passage is defined in a wall of the inner bore member to communicate a bore defined in the inner bore member. A spring-biased piston is movably received in the bore of the inner bore member. The piston is driven by a driving bar coupled to a handgrip. The outer cylinder member forms in a wall thereof a hole receiving and in threading engagement with a transparent plug that is exposed through each of the window openings.

Abstract: A hydraulic modulator includes a cylinder for slidably supporting a power piston and changing the volume of a hydraulic chamber communicating with brake calipers according to the sliding of the power piston, and an electric motor for sliding the power piston through a power transmitting mechanism. The cylinder extends parallel to a rotating shaft, and a rotational motion of the electric motor is converted into a linear motion on an axis parallel to the rotating shaft. The power transmitting mechanism is provided by a ball screw mechanism composed of a ball screw nut, balls, and a ball screw shaft for converting the rotational motion of the electric motor into the linear motion of the push slider. The push slider has a head portion coming into spherical contact with the power piston. The hydraulic modulator so configured has a small size, and an improved arrangement of components.

Abstract: A brake (10) for applying a braking force to a shaft includes a housing (11) which defines a chamber (17). The housing (11) includes a plurality of depressions (19) circumferentially spaced around an axis (22). A rotatable actuator (40) is received in the chamber (17) and includes a plurality of depressions (43) circumferentially spaced around the axis (22). The housing depressions (19) face the rotatable actuator depressions (43) and each matching pair of depressions receive a ball (23) therebetween. A spring (50) under compression is positioned centrally about the axis (22). A bearing (56) is interposed between the rotatable actuator (40) and disc assembly (70) which minimizes frictional effects and rotational feedback during brake actuation. When the rotatable actuator (40) is rotated, the balls (23) roll along the depressions (19, 43) to gradually shallower portions thereof. This moves the rotatable actuator (40) axially away from the housing (11), thereby applying a braking force to the shaft.

Abstract: A disc brake wherein first and second friction member are aligned by first and second rails with a rotor. A piston retained in a caliper has a first radial groove separated from a second groove in a carrier for the first friction member by an oval member. The piston responds to pressurized fluid to create a braking force that acts the piston to move the first friction member into engagement with the rotor. On engagement with the rotor the first friction member rotates to bring the carrier into abutment engagement with the rail and at the same time the oval member pivots within the second groove to push the housing such that a running clearance is eliminated with the rotor such that the pressurized fluid may thereafter act on the housing to define a clamping force between the first and second friction members and rotor to effect a brake application.

Abstract: A disk brake for a vehicle, in particular a commercial vehicle, including an application device, which is used to apply a brake lining to a brake disk by at least one or two actuating spindles running parallel and at a distance from one another in a bridge. The application device has an anti-friction roller, which is supported on a pivotable lever of the application device. The disk brake is configured in such a way that the anti-friction roller is fixed as a separate component radially and axially on the lever and is held by an anti-friction roller holder that is fixed to the lever. The anti-friction roller holder is provided with cage return guides, which, when the lever is pivoted back into an initial position, likewise press the journal bearings into an initial position.

Abstract: A brake comprising a caliper assembly; brake linings associated with the caliper assembly; and one of an electromechanical actuator module or a hydraulic actuator module. The body of the caliper assembly has a mounting wherein the module(s) can be removably mounted to the caliper without requiring modification to the caliper assembly. The mounting enables the actuator modules to be quickly changed out with a new actuator in the case of repair or maintenance; as well as facilitates initial assembly and upgrades to the brake.

Abstract: A combined vehicle brake including a hydraulically actuated service brake and an electromechanically actuated parking brake device, a hydraulic operating pressure chamber in a brake housing being defined by a brake piston, which for performing service braking actions can be acted upon by hydraulic pressure fluid, so that the brake piston can be actuated along a piston longitudinal axis in order to produce a braking action, and the parking brake device acting on the brake piston by way of a transmission that translates the rotary motion of an electromechanical actuator into a translational motion and actuates the brake piston to perform parking brake actions and to keep it in the actuated position. Also disclosed is a transmission for translating a rotary motion into a translational motion by way of a screw spindle and a spindle nut, which are in contact with one another by way of multiple rolling elements.

Abstract: A disc brake, particularly for a commercial vehicle, includes a brake caliper, which is provided with a brake disc and fixed to a brake carrier by two fastening elements such that it can be axially displaced in relation to the brake disc. The fastening elements each include a guide spar, which is connected to the brake carrier in a fixed manner. For the axial displacement of the brake caliper, one of the guide spars is guided in a plain bearing designed as a movable bearing and the other in a plain bearing designed as fixed bearing such that the guide spar of the fixed bearing includes an elastically deformable section in the radial direction on the outer circumference. The associated bearing rests against the deformable section at least in some sections.

Abstract: Provided is a braking device for an elevator in which energy required for braking and releasing is reduced. The braking device includes a movable plunger (5), braking mechanisms (1-4, 6, 7) which are connected to one end of the movable plunger and are switched between a braking state and a releasing state by an axial movement of the movable plunger, a first drive mechanism (10) using mechanical or magnetic force, for reversing the movable plunger in the middle of a movable range in an axial direction for the switching between the braking state and the releasing state to press and hold the movable plunger to the braking side or the releasing side, and a second drive mechanism (20) using an electromagnetic force, for driving the movable plunger to a reversion position in the middle of the movable range from the braking side or the releasing side against a pressing force of the first drive mechanism in order to switch between the braking state and the release state.

Abstract: The invention relates to a vehicle brake, in particular a caliper brake, having a housing, a brake piston accommodated in and linearly displaceable relative to the housing for displacing a brake lining, and a mechanical actuator arrangement for displacing the brake piston, wherein the brake piston is displaceable in the housing by charging a hydraulic chamber by means of a hydraulic brake circuit and wherein the mechanical actuator arrangement comprises a threaded spindle, which is mounted rotatably in the housing and may be set in rotation, wherein the brake piston as a result of a rotational movement of the threaded spindle is linearly displaceable relative to the housing. In this vehicle brake, it is provided that the threaded spindle is provided with a multiple-start self-locking thread having n flights, wherein the number n and the thread lead are selected in such a way that the thread is close to the self-locking limit.

Abstract: A brake caliper of a disc brake includes a housing with a bore, in which a piston is arranged in an axially displaceable fashion, a shaft for actuation, which is mounted in a rotatable and axially displaceable fashion, two ramp elements being rotatable in relation to each other, a readjusting device with a spindle, and an axial bearing that is active between the shaft and the spindle. A generic brake caliper of a disc brake includes components having a construction to withstand stress so that they are exposed to even, low stress without detrimental tension peaks. A toothing is provided on a circumference of the spindle, and a form-fit accommodation means for the toothing is provided. The accommodation means are unrotatably connected to the housing and secure the spindle against twisting. A calotte arrangement is also provided as an axial bearing, which comprises a calotte shell with a concavely curved surface and a calotte pivot with a convexly curved surface.

Abstract: A disk brake mechanism is described, comprising one of a pneumatic and electromechanical actuator having a brake piston, a brake application device for actuating the disk brake mechanism, and a fixed-type brake caliper attached to an axle, for moving a reaction-side brake lining against a brake disk during application. The mechanism also includes a pivoting lever of the brake application device, operatively connected to the brake piston for pressing an application-side brake lining during application, the pivoting lever being supported on one side on the brake caliper, and a supporting part forming, after a predefined stroke portion of an application stroke of the brake piston, an abutment for the pivoting lever between a pressure region of the application-side brake lining on the pivoting lever, and a support of the pivoting lever on the brake caliper.

Abstract: The brake system includes a brake lever independent of, but capable of rotating about the same point as a bell crank. Upon receiving a downward force, a member extending from the lever strikes a portion of the bell crank and generates a force that cause the bell crank to rotate. Rotational action of the bell crank transfers rotational energy to an equalizer bar thorough a linkage system. The equalizer bar's rotation increases or decreases tension on brake bands that slow a tubing drum. A cylinder can activate and cause the equalizer bar to rotate, applying tension to the brake bands and slowing the drum. Rotational energy is transferred back to the bell crank through the linkage. The rotational energy is absorbed by a spring positioned between the bell crank and the brake lever, thereby reducing the amount of sudden force passed through the brake lever to an operator.

Abstract: A vehicle brake system comprising an actuator and a mechanical linkage, whereby a force produced by the weight of the vehicle is transmitted via the mechanical linkage to the actuator to provide a braking force.

Abstract: A parking-brake operating mechanism is provided with an adjusting spindle, a cam shaft to which a parking lever is connected, and a thrust transmitting assembly disposed between the cam shaft and the adjusting spindle. The thrust transmitting assembly includes a rolling roller which can roll between the cam shaft and the adjusting spindle. Rolling curved surfaces are provided respectively at the cam shaft and the adjusting spindle. The rolling roller is disposed in contact with the rolling curved surfaces.

Abstract: A hydraulic vehicle brake with a parking brake device, in particular for motor vehicles, includes a brake housing in which a hydraulic service pressure chamber is delimited by a brake piston, wherein hydraulic pressure fluid can be applied to the hydraulic service pressure chamber for carrying out service brake operations so that the brake piston is actuatable along a longitudinal piston axis in order to achieve a braking effect. The parking brake device acts on the brake piston with an actuating device, which actuates a rolling-element ramp-type gear with an electromechanical actuator.

Abstract: A rotor brake for a rotary-wing aircraft includes a rotor shaft, a braking-force actuator configured to be hydraulically actuated, a braking-force pick-up element connected to the rotor shaft and operationally connected to the braking-force actuator, an electromechanical piston control element, and a first hydraulic line connecting the electromechanical piston control element to the braking-force actuator so that the braking-force actuator can be actuated electrohydraulically by the electromechanical piston control element.

Abstract: The invention relates to an automatic parking brake acting on a disk brake and in which the piston of the brake comprises a cavity in which there is a spring (1) allowing pressure to be applied to the end (12) of the piston cavity. A washer (5) is positioned between the inlet (13) of the cavity and the spring (1). A pressing device (4) allows pressure to be applied to the washer (5) so that it preloads the spring (1).

Abstract: An actuator arrangement for a disc brake for moving first and second friction members into engagement with a rotor and effect a brake application. The actuator arrangement includes first and second levers that are pivotally connected to an anchor located in a plane that is perpendicular to first and second rails on which the first and second friction member are retained, a third lever that is connected to the first lever and a yoke to receive a second end of the second lever and align a first ramp surface thereon with a second ramp surface on its end and an input linkage. The input linkage receives an input force and moves on the first and second ramp surfaces to pull on the first lever and push on the second lever to move the first and second friction members into engagement with the rotor to effect a brake application.

Abstract: A parking brake assembly for an air actuated disc brake includes an operating shaft for amplifying a force supplied by an air actuator and transmitting the force to brake pads. The operating shaft is pivotable about an axis between a rest position at which a braking force is not applied and an actuated position at which the braking force is applied. An abutment surface on the operating shaft is selectively engageable by a complementary latch of the assembly to retain the operating shaft in the actuated position and thereby apply the parking brake. The abutment surface has a helical configuration.

Abstract: It is proposed, for an electronic system for operating an electromechanical parking brake device of a vehicle with an input unit for detecting a driver command which is evaluated by a control unit which activates at least one actuating unit for actuating at least one brake, that the control unit consist of at least two control components, of which a first control component is associated with the input unit and at least one second control component is associated with the at least one actuating unit.

Abstract: A system (22) for orienting an object (28) relative to a base (24) to which the object (28) is rotatably coupled includes a braking surface (46) in fixed relation with the base (24). A brake (48) is engaged with the braking surface (46). A linear actuator (82) has a body (86) in fixed attachment with the object (28) via a strap member (84) and a coupling element (80). The linear actuator (82) also includes a rod (88) in fixed communication with the brake (48) through an elongate member (90) that flexes in response to a braking force (66) imposed on the braking surface (46) by the brake (48). The linear actuator is activated to generate linear motion (120) of the rod (88). The linear motion (120) of the rod (88) causes rotational motion (122) of the object (28). The strap member (84) is enabled to flex as the object (28) rotates.

Abstract: A brake system using an electric motor to provide sufficient braking force by generating the self boosting operation using the motor and rotational inertia of the brake disc, thereby stabilizing the braking operation.

Abstract: An electronically controlled disc brake with self-servo effect comprises a ramp plate provided with a brake pad for engagement with a brake disc, an actuator for applying a control force on the ramp plate substantially transverse to the brake disc, a ramp bridge, and rollers movable in ramps in surfaces facing each other of the ramp plate and the ramp bridge. The arrangement of these members is such that a movement of the ramp plate in the tangential direction of the brake disc will cause it to move towards or away from the brake disc.

Abstract: A frictional brake mechanism for detaining a first body relative to a second body having a surface, comprising a brake pad coupled to the first body and disposed adjacent to the surface and movable to and from a braking condition, wherein the brake pad frictionally engages the surface, and a non-braking condition, wherein the brake pad is disposed in a spaced relation to the surface; a biasing structure for biasing the brake pad to the braking condition; a release structure operably coupled to the brake pad and movable to and from a non-release position, wherein the brake pad is biasable to the braking condition, and a release position, wherein the brake pad is disposed substantially in the non-braking condition; and a release key in operable communication with the release structure and movable to and from first and second positions relative thereto, wherein when the key is disposed in either of the first or second positions, the release structure is disposed substantially in the release position and when the

Abstract: A disc brake has a support with a first end separated from a second end by first and second side walls that retain actuation members to move the first and second friction members into engagement with a rotor and effect a brake application. First and second perpendicular projections that extend from the support are aligned with the first wall and third and fourth perpendicular projections that extend from the support and are aligned with the second wall. The first and second friction members have first and second radial projections located between a first end and a second end. Beams connect the radial projections with the perpendicular projections to align the first and second friction members with the rotor and pivot on the perpendicular projections to carry reaction forces created during a brake application into the first end of the support.

Abstract: A parking brake system including at least one braking unit actuated by at least one cable, a cylinder having a piston chamber and a rod chamber, a piston slidably received within the cylinder and having a rod connected thereto, the rod extending through the rod chamber and operably connected to the cable, a pressurized fluid source connected to the piston chamber, and a valve for controlling the flow of the fluid to the piston chamber, wherein the piston and rod move through the cylinder when the fluid pressurizes the piston chamber, thereby actuating the braking unit.

Abstract: A automotive braking system for use on a vehicle for emergency stopping and parking comprising a mechanical brake caliper which exerts frictional stopping force on a brake rotor, the caliper being designed so as to provide a means of transferring mechanical force to the caliper pistons by means of a lever which transfers mechanical force to the piston through one or more apertures in the piston cylinders. The lever is operated by an actuator rod, which is engaged by a spring chamber having a heavy duty parking spring with and opposing force created by a variable pressure means, typically air or hydraulic. The system fails to a safe-mode mode wherein a loss of pressure opposing the parking spring results in the engagement of the braking system, bringing a moving vehicle to rest within a reasonable distance and holding a vehicle parked until such time the pressure can be restored.

Abstract: A brake device for the rotor of a helicopter, the device associating a mechanism having a disk and a manual control for main braking of the rotor, and a mechanism for secondary braking of the rotor under strong wind. The secondary braking device includes a secondary lever hinged to the body and capable of being actuated against secondary return elements to drive a bearing finger against a main lever of the main brake mechanism and cause the jaws of the mechanism to move correspondingly towards each other so that the secondary lever actuates the main lever in order to amplify the clamping forces applied to the disk by the jaws in comparison with the forces they exert when driven by the main lever alone.

Abstract: A brake actuating assembly includes a cam member that has first and second cam surfaces. A first piston in a first hydraulic circuit is selectively enabled to axially translate the cam member from a released position to an actuation position while an actuation piston moves friction surfaces into engagement with a rotor to effect a brake application. During a brake application, pressurized fluid is diverted away from a second piston in a second hydraulic circuit that is later enabled to return the cam member to the released position. A resilient assembly selectively engages the second cam surface to obliquely move the cam member toward the actuation piston during a brake application. An electrically actuable valve supplies pressure fluid that acts on and moves the resilient assembly away from the second cam surface and thereafter allow a second hydraulic piston to return cam member to the released position.

Abstract: This invention relates to a mechanically- and hydraulically actuated brake cylinder, in which the adjustment neutralization section is reduced, with the result that the cylinder may be more compact.

Abstract: The invention relates to a braking system of a rail vehicle, particularly of a railroad freight car, containing a parking brake device having a gearing which converts a rotating movement initiated by rotation-actuating devices to an application movement of at least one pressure-medium-operated cylinder piston drive.

Abstract: A transaxle for a small utility vehicle or implement, including a casing, at least one rotatable shaft disposed in and extending from the casing, at least one brake disc rotatably fixed to the rotatable shaft for rotation therewith, and at least one braking mechanism with at least a portion of the braking mechanism being externally mounted on the casing proximate the rotatable shaft. The braking mechanism includes at least one friction puck disposed proximate the brake disc, and a brake shaft including a cam surface having a longitudinal edge, wherein the brake shaft has an engaged position in which the longitudinal edge is in operative engagement with the friction puck and the friction puck is in pressing engagement with the brake disc and a disengaged position in which the longitudinal edge is out of operative engagement with the friction puck.

Abstract: A vehicle has a park brake system, which has set a set operational state for holding the vehicle in a parked position, and a released operational state in which the vehicle may be driven. The park brake system includes a park brake actuator and connecting linkages which are driven by an operator of the vehicle in an engaging direction in order to effect the set operational state of the park brake system. The park brake system further includes a return spring engaged to the connecting linkages in such a manner to drive them and the park brake actuator in a disengaging direction and to ensure maintenance of the released operational state of the park brake system after it is effected by an operator. The park brake system also includes an impact-reduction energy absorber such as a spring, damper, or some combination thereof for absorbing some of the energy transferred to the connecting linkages when the return spring drives the connecting linkages and the park brake actuator in their disengaging directions.

Abstract: A vehicle brake assembly includes a disc that rotates about a lateral axis. A caliper is mounted to a non-rotating vehicle structure and supports a pair of brake pads that are positioned on opposing sides of the disc. An air chamber provides an actuation force for the brake assembly. A first actuator applies a force in a first direction parallel to the lateral axis to bring the brake pads into engagement with the disc during a braking operation. The air chamber includes a second actuator that applies a force in a second direction transverse to the lateral axis in response to a vehicle input. An adapter is operably coupled to the first and second actuators to translate the force applied in the first direction to the force applied in the second direction. The adapter includes a housing that is mounted to the caliper and a lever that pivots relative to the housing. The lever has one end connected to the first actuator and another end connected to the second actuator.

Abstract: A vehicle brake assembly includes a disc that rotates about a lateral axis. A caliper is mounted to a non-rotating vehicle structure and supports a pair of brake pads that are positioned on opposing sides of the disc. An air chamber provides an actuation force for the brake assembly. A first actuator applies a force in a first direction parallel to the lateral axis to bring the brake pads into engagement with the disc during a braking operation. The air chamber includes a second actuator that applies a force in a second direction transverse to the lateral axis in response to a vehicle input. An adapter is operably coupled to the first and second actuators to translate the force applied in the first direction to the force applied in the second direction. The adapter includes a housing that is mounted to the caliper and a lever that pivots relative to the housing. The lever has one end connected to the first actuator and another end connected to the second actuator.

Abstract: A brake pedal mechanism (4) for motor vehicles with a pedal block(5), which is fastened to the body of the motor vehicle and accommodates a mount (18) for the pivot axis (17) of a rotatably mounted actuating pedal (6). The pedal (6) is provided with a pedal surface (9), wherein an actuating element (7) is articulated to the actuating pedal (6) for a brake power booster (1) with a main brake cylinder (2). The pivot axis (17) mounted on the pedal block (5) is arranged on the actuating pedal (6) between the pedal surface (9) and the articulation point (8) of the actuating element (7).

Abstract: A spot-type automotive disc brake (10) provides parking brake and primary brake functions based on the same pair of friction elements (16, 18) and without resorting to supplemental drums or supplemental friction elements. The mechanism is simple and can be made at a size applicable to small mass produced vehicles. A sliding disc (12) has fixed (42) and actuated (40) friction elements at its opposite sides. A piston (64) and an external bifurcated lever mechanism (72) act completely independently yet symmetrically on the actuated friction element (16) without any common thrust-transmitting parts, whereby the asymmetry and complexity and consequential unreliability and high cost and duplication of mechanisms of prior proposals is avoided.

Abstract: A brake apparatus has a base plate and a first brake disk movable in an axial direction. The apparatus also has a second brake disk positioned remote from the base plate relative to the first brake disk. A brake operating device is connected essentially torsion-proof with the first and second brake disks and is positioned between the base plate and the first and second brake disks. A friction lining is positioned between the first and second brake disks and is carried on an input shaft in a torsion-proof manner relative to the shaft. The input shaft is rotatable relative to the base plate. A sleeve type spacer has a fastener passing through the sleeve. The sleeve is adjustable in the axial direction to keep a distance between the first and second brake disks. The sleeve and the fastener axially retain the second brake disk at the selected distance from the first brake disk during operation of the brake apparatus.

Abstract: A cable actuated mechanical disc brake caliper includes a caliper housing and a cable guide rigidly fixed to the housing having a cable receiving bore extending along the guide axis for axially receiving a cable. A lever arm is pivotably attached to the caliper housing for pivoting about a pivot axis. The lever arm is operatively associated with the brake pad to move the brake pad between a retracted and an extended position as the lever arm is pivoted in the first direction from a non-actuated position to a fully actuated position. The lever arm has a cable clamp radially spaced from the pivotal attachment for fixedly attaching the cable to the lever arm in a select orientation relative to the lever arm and the attachment point. A guide surface is curved about the pivot axis and has a first portion attached to the lever arm with the attachment point essentially coincident therewith and a second portion circumferentially spaced from the first portion.

Abstract: A disc brake includes a caliper housing, a pair of friction members, and a piston. The caliper housing includes a support portion and a cylinder portion coupled to the support portion. The cylinder portion has a piston chamber with a fluid inlet opening. The cylinder portion is an independent component from the support portion. Preferably, the caliper housing includes parts constructed of deformed sheet material such as press formed sheet metal. The parts are preferably fixedly coupled together by welding, brazing and bolts. The friction members are coupled to the caliper housing to form a rotor slot. The piston is mounted in the piston chamber to move one friction member between a release position and a braking position. In one embodiment, an integrated mounting member and a flanged cylinder is provided. In another embodiment, a pair of flanged cylinders with a pair of movable pistons is provided.