Abstract: A tooth driven over-torque protection mechanism for use in a slack adjuster or as an air disc brake clutch, includes a shaft, toothed gear, a clutch device, a first spring, and a second spring. The toothed gear is disposed on the shaft. The toothed gear has a first pinion teeth set that extends along a first direction and a second teeth set that extends along a second direction. The clutch device that is also disposed on the shaft and includes an upper cam and a lower cam. The first spring biases the toothed gear against the clutch device. The second spring biases the clutch device against the toothed gear. The upper cam has cam teeth that cooperate with the second teeth set of the toothed gear in a torque transmitting manner, such that a torque applied in a clockwise direction to the first pinion teeth is transmitted to the upper cam through the second teeth set, but torque applied in a counterclockwise direction is opposed by the first spring.

Abstract: A brake assembly and a method of adjusting a brake assembly. A tool may be insertable through a through hole in a caliper housing and into a shaft cavity of a shaft of a wear adjuster mechanism that is configured to adjust a running clearance of a brake pad assembly.

Abstract: A brake caliper (1, 1?) for a vehicle brake, in particular a disc brake of a commercial vehicle, includes a pressure piece (110, 110?), a thrust piece (120, 120?) configured to move axially relative to the pressure piece (110, 110?) in a thrust direction (A) to transmit a braking force and a guiding member (130a,b, 130?a,b) configured to limit the movement of the thrust piece (120, 120?) relative to the pressure piece (110, 110?) in at least one direction orthogonal to the thrust direction (A). The brake caliper (1, 1?) may further include a lever (140) pivotally supported between the thrust piece (120, 120?) and the pressure piece (110, 110?), wherein the guiding member (130a,b, 130?a,b) is configured to limit the movement of the lever (140) relative to the pressure piece (110, 110?) and/or the thrust piece (120, 120?) in at least one direction orthogonal to the thrust direction (A).

Abstract: A friction brake system comprises a first gear unit having a first member and a second member, the first gear unit is configured for converting a rotary motion of the first member into a braking motion of the second member, the first member is configured such that the rotary motion may be driven by an electric motor, the brake system further comprises a second gear unit having a spindle and nut for converting a rotary motion into a linear motion for pad wear compensation, the spindle is connectable to a brake pad, the second member of the first gear unit and the nut of the second gear unit are or may be mechanically coupled such that, during the braking motion, the second member of the first gear unit pushes against the nut of the second gear unit to press the brake pad against a friction surface.

Abstract: An electromechanical brake apparatus includes a housing supporting an inboard brake pad and an oppositely facing outboard brake pad for selective frictional contact with a rotor interposed longitudinally therebetween. The housing includes a mechanism cavity located longitudinally between the inboard pad and a motor having a motor output shaft. An adjuster ramp assembly indirectly receives torque from the motor. A spindle is operatively connected with the adjuster ramp assembly to indirectly receive torque from the motor therethrough. A leading ramp assembly is configured to transmit applied torque from the motor to the adjuster ramp assembly. The leading ramp assembly receives stepped-up torque from the motor via the motor output shaft and a ball thrust bearing at least partially located radially between the motor output shaft and an actuator ramp of the leading ramp assembly.

Abstract: A parking brake apparatus may include: a driving part; a driving gear rotatably connected to the driving part; a gear shaft engaged with the driving gear so as to be rotated by the driving gear; a pair of pistons disposed on both sides of the gear shaft and connected to brake shoes, respectively; a pair of nuts disposed in the respective pistons, and screwed to the gear shaft; an elastic member installed between the piston and the nut so as to pressure the nut toward the brake shoe; a holder installed in the piston so as to support the elastic member; and a constraint ring installed in the piston so as to constrain the holder.

Abstract: A disc brake (1) includes an electromechanical actuator (2), in particular an electromechanical parking brake actuator. The electromechanical actuator (2) includes a driveshaft (6), an electric motor (7) arranged on the driveshaft (6), a cam disc (5) arranged on an output shaft (49), and a transmission (8) arranged on the driveshaft (6) configured for transmitting the torque of the electric motor (7) to a force-transmission device (3). A magnetic brake (20) is disposed on the driveshaft (6) between the electric motor (7) and the cam disc (5) for arresting the driveshaft (6).

Abstract: A rotary to linear actuator comprising: (a) a nut having a threading; (b) a spindle having an external threading and positioned at least partially within the nut; and (c) a drive shaft in communication with the nut to rotate the nut; wherein rotation of the drive shaft rotates the nut, and the threading of the nut engages the external threading of the spindle to move the spindle axially away from the drive shaft to drive a piston.

Abstract: A brake caliper for a vehicle brake is provided. The vehicle brake includes a pair of brake pads, configured to be coupled to the brake caliper, and a disc positioned between the brake pads. The brake caliper includes an adjuster unit mounted to the brake caliper. The adjuster unit includes a gearwheel configured to be rotary driven in a first direction, and an adjuster nut operatively coupled with the gearwheel and configured to be operatively coupled with one of the brake pads, such that a rotational movement of the gearwheel in the first direction is converted, by the adjuster nut, into an axial movement of the brake pad towards the disc. The gearwheel is mounted in the brake caliper such that the gearwheel is axially fixed relative to the brake caliper, while the adjuster nut and the gearwheel are in an axially slidable engagement with respect to one another.

Abstract: An automatic load brake having a wear-induced locking mechanism for a hoist is disclosed. In various embodiments, the load brake includes a first shaft defining an annular hollow portion and a radially outer surface; a second shaft defining an engagement portion and a radially inner surface, the radially inner surface configured to engage the radially outer surface; a first reaction plate coupled to the first shaft; a second reaction plate coupled to the second shaft; and a plurality of friction discs, with at least one of the plurality of friction discs coupled to a cup and disposed between the first reaction plate and the second reaction plate, the annular hollow portion of the first shaft being configured to lock to the engagement portion of the second shaft upon thinning of the plurality of friction discs.

Abstract: A disc brake (1) for vehicles, in particular for commercial vehicles, includes a brake disc, at least two brake linings (3, 3a), and an adjusting spindle (4) axially adjustable toward the brake linings (3, 3a) for setting an air play (L) between the brake linings (3, 3a) and the brake disc (2). The adjusting spindle (4) has a pressure plate (4a) on a side facing the brake linings (3, 3a), and a pressure piece (9) arranged on the adjusting spindle (4) on a side axially opposite from the brake linings (3, 3a). The pressure piece (9) has an anti-rotation safeguard (10; 10a) for blocking a rotation (R) of the adjusting spindle (4), and the anti-rotation safeguard (10; 10a) axially engages the adjusting spindle (4).

Abstract: A disc brake assembly includes a brake shoe, an anti-rotation member extending outward from the brake shoe, a displaceable brake piston that supports the brake shoe, an end face of the brake piston, and a recessed area in the end face. The brake shoe is displaceable along an axis. The end face is perpendicular to the axis and faces the brake shoe. The anti-rotation member has a stop surface and a diversion surface. The recessed area engages the stop surface to stop rotation of the brake piston in a first direction and the recessed area engages the diversion surface to allow rotation of the brake piston in a second direction. The first and second directions are opposite.

Abstract: The present invention concerns a brake actuation mechanism for a disc brake, in which a translational movement in the direction of the brake disc leads to a rotation of an input element of an adjustment device, the input element of the adjustment device being designed as part of a ball screw drive. Furthermore, the invention concerns a disc brake with such a brake actuation mechanism.

Abstract: A disc brake device has brake linings attached to brake levers that open and close in the lateral direction and sandwich a brake disc. A linking mechanism including a coupling device including lever mechanisms and a spindle opens and closes in conjunction with the lifting and lowering operation of a rod of a thruster, and the spindle is rotated in one direction by a one-way clutch in accordance with the relative displacement between the lever mechanisms and the coupling device to shorten an overall length of the coupling device, the rotation of the spindle is transmitted to an adjustment bolt screwed to a stopper on the lower end sides of the left and right brake levers via a flexible shaft, and the adjustment bolt protrudes downward with respect to the stopper.

Abstract: An electric brake actuator configured to push a friction member onto a rotary body by advancing a piston by rotating an input shaft by an electric motor, including: a torque imparting device configured to impart, to an input shaft, a torque in a direction to retract a piston based on an elastic torque of a torsion spring and including a mechanism configured to allow a first retained portion provided at one end portion of the torsion spring to be retained by another one of a plurality of first retaining portions of a stator when the elastic torque exceeds a set upper-limit torque to decrease the elastic torque; and a mechanism configured to permit a second retained portion of a rotor to be retained by a second retaining portion provided at the other end portion of the spring to prohibit the elastic torque from becoming smaller than a set lower-limit torque.

Abstract: A disc brake and an adjuster system for a disc brake. The adjuster system may include a piston, a manual rewind apparatus, and an overload device. The overload device may be arranged between the manual rewind device and the piston and may be configured to interrupt driving engagement between the manual rewind apparatus and the piston when torque is applied above a predetermined value.

Abstract: A mechanical disc brake structure contains: a body, a brake set, and a drive unit. The body includes two clamp seats between which an accommodation space is defined so as to accommodate a circular disc. The brake set contains: a rotation member includes a coupling column, a rotatable block, and a connection portion. The rotatable block has a push face, the rotation member includes a through aperture, and the stop fringe has a first retaining portion. The engagement member includes a braking disc having a forced face and a shaft. The shaft has a second retaining portion and a threaded orifice. An actuation structure is defined between the push face and the forced face. A torsion spring is accommodated in the through aperture. A screw element is screwed with the threaded orifice, and a locking member is locked with the rotation member.

Abstract: A brake caliper of a disc brake includes tie bars which run substantially parallel and at a distance from each other and which interconnect a caliper back and a receiving area of a housing that encloses brake application functional parts. The receiving area has an approximately rectangular assembly opening closable by a closure lid. The assembly opening includes longitudinal sides extending in the direction of the tie bars and narrow sides extending transversely to the long sides. The assembly opening is adjacent to at least one flange which forms an undercut and a wall for the receiving area on one of the narrow sides.

Abstract: The invention relates to a disc brake comprising a brake caliper (1) which covers a brake disc and brake pads (3) arranged on both sides of the brake disc in a pad shaft (6), each brake pad being assembled from a friction lining (4) and a rear plate (5), the front face of which is designed as a securing surface (16) for the friction lining (4) and the rear face of which is designed as a pressure surface for transmitting the braking pressure. A hold-down device (7) which runs transversely over the brake pads (3) is supported against the brake pads (3) in the direction of the disc brake axis (A). The hold-down device (7) is made from an elongated base (7C) in the form of a channel over the majority of the total length of the hold-down device, wherein a spring (9) rests against said base, and from lateral flanks (8A, 8B) arranged on the sides of the base (7C).

Abstract: A brake system that includes a brake piston and a spindle. The brake piston includes a piston pocket defined in the brake piston. The piston pocket includes a threaded portion. The spindle includes a threaded portion. The threaded portion of the spindle is adapted to threadably engage the threaded portion of the piston pocket.

Abstract: An electric parking brake device generates pressing force by pressing friction materials against a brake disc by causing a piston to move by motor operation. A control device executes: parking processing wherein the motor increases the pressing force to an initial pressing force higher than a lower-limit pressing force; and re-drive processing wherein the motor is driven and the pressing force increased at a re-drive time, which is a predetermined time after the end of execution of parking processing. During parking processing, the control device uses one among the initial pressing force and the predetermined time, in addition to a pressing force decrease characteristic corresponding to an assumed temperature set for use in calculation, as a basis to calculate the other of the initial pressing force and the predetermined time such that the pressing force becomes equal to or less than the lower-limit pressing force at the re-drive time.

Abstract: A disc brake for a utility vehicle has a brake caliper engaging over a brake disc, at least one application device for applying the disc brake by way of a displaceably guided bridge, which bridge has at least one threaded hole, into which an actuating spindle passing through a closure plate connected to the brake caliper and provided with an external thread is screwed. The spindle bears a pressure piece which can be rotated relative thereto, by which pressure piece a brake pad can be pressed against the brake disc. A readjusting device is operatively connected to the actuating spindle for readjusting a clearance. A securing ring is provided, which is held on the bridge so as to be secured axially and against rotation and which, in an end position of the actuating spindle screwed in counter to the actuating direction, in order to secure the actuating spindle against rotation, engages with a form fit in a thread-free end region of the actuating spindle which is assigned to the pressure piece.

Abstract: A disk brake includes a brake disc, a brake shaft having a rotation axis that lies parallel to a main plane of the brake disc, a brake pad lying on a same side as the brake shaft relative to the brake disc, a pressure piece disposed between the brake shaft and the brake pad, a first limiting device configured to limit, to a predefined first extent, the displaceability of the pressure piece relative to the brake disc in a direction parallel to the rotation axis of the brake shaft, and a second limiting device configured to limit, to a predefined second extent, the displaceability of the brake shaft relative to the brake disc in a direction parallel to the rotation axis of the brake shaft, the second limiting device comprising a first stop on the pressure piece and a second stop on the brake shaft.

Abstract: A disc brake for a vehicle, in particular for a commercial vehicle, includes a brake caliper, which extends over a brake disc; a brake application device arranged in the brake caliper for pressing brake pads against the brake disc; at least one brake piston, which can be moved axially by the brake application device; an adjustment device, which is positioned in the brake caliper and which is operatively connected, by a gearing, to the brake piston in order to axially adjust the brake piston in order to compensate a clearance change resulting from wear. The gearing has an input gear, which is retained on the adjustment device for conjoint rotation, and an output gear, which is retained on the brake piston for conjoint rotation. The disc brake is designed such that the output gear connected to the brake piston for conjoint rotation and the input gear of the adjustment device, which input gear corresponds thereto, are arranged in a driver device, which is held in an axially movable but rotationally fixed manner.

Abstract: A disk brake having a brake caliper and a brake actuation mechanism being supported in it, in which the brake actuation mechanism includes an amplification mechanism for introducing a clamping force, an adjustment device for compensation of lining wear with a torque clutch, a thrust element for transmitting the clamping force onto a brake disc and a reset device, which components are arranged around a rod, in which the torque clutch, for example, is formed as a roller-ramp-mechanism. A spring force can act onto the torque clutch by means of the reset device thereby forming a torque limit. Furthermore the invention relates to an assembly method for such a disc brake.

Abstract: A support portion (23) has three screw insertion portions (23d1, 23d2, and 23d3) which is fixed to a caliper, and arranged so as to surround an output shaft (39). Therefore, it is possible to firmly fix a case (21) to the caliper at these fixing locations. Additionally, since the fixing locations are determined so as to collectively define a “plane”, it is possible to effectively inhibit a sway of the case (21) with respect to the caliper. Furthermore, it is possible to inhibit a twist of the case (21), and it is possible to sufficiently support a vehicle requiring large torque such as a truck.

Abstract: A brake system that includes a brake piston that includes a piston pocket. A nut is located inside the piston pocket. During a brake apply, the brake piston is adapted to move a brake pad against a brake rotor to create a clamping force. During the brake apply, the nut is moved with the brake piston.

Abstract: A disc brake (10) of the type including a pivoting lever having eccentric journals which act on a pair of tappets is disclosed. The tappets are adjusted in length by rotation, and each tappet has a tappet gear (22). A centrally located intermediate gear (24) is provided between the tappet gears to form a gear train, synchronizing the rotation of the two tappets and therefore ensuring that they remain the same length. The centrally located intermediate gear (24) includes a socket (26) for receiving a centrally located adjuster. The adjuster may be installed and removed from the disc brake through an aperture at the rear of the brake caliper, without any substantial disassembly of the brake and without de-synchronizing the tappets or even interrupting the gear train between the tappets.

Abstract: A parking mechanism part (12) including a clamp member (39) and a thrust generation mechanism (40) is integrally arranged in a caliper (8) constituting an opposed-piston type disk brake (2a). The clamp member (39) is supported on the caliper (8) to be movable along the axial direction with respect to an inner body part (14) of the caliper (8), a spindle (45) of the thrust generation mechanism (40) is rotatably supported on the base part (42) of the clamp member (39), a nut (46) threadedly engaged with the tip end of the spindle (45) is arranged inside a combined-use piston (10) fitted in an enter-side inner cylinder (18b).

Abstract: An electromechanical brake includes a piston installed in a caliper housing so as to be movable forward and backward in an axial direction, and moves forward in the axial direction at the time of performing a braking operation so as to press a friction pad provided to clamp a disc; an actuator which provides rotational force for moving the piston; a spindle which is thread-coupled to the piston, and rotates by rotational force transmitted from the actuator to move the piston forward and backward in the axial direction; and a guide member which is provided to be integrally fixed to the caliper housing and coupled to the piston so as to restrict rotation of the piston and guide forward and backward axial movement of the piston, in which the guide member has a support portion which is coupled to the spindle and supports the spindle in the axial direction.

Abstract: A brake assembly includes a service brake assembly and an electromechanically actuable parking brake assembly. The electromechanically actuable parking brake assembly has a ball nut assembly comprising a ball screw and a ball nut. The ball screw and ball nut form a raceway for bearing members. The bearing members circulate within an internal path formed in the ball screw.

Abstract: An electric brake system with a parking function is configured to actuate an electric motor when there exists a request to apply a parking brake. With the motor being actuated, the electric brake system moves a locking pin from an unlocking position to a parking/locking position. The electric brake system is further configured to prohibit the actuation of the electric motor even if the brake pedal is operated while the vehicle is at a stop and when the parking brake operation has stopped.

Abstract: An adjusting device is disclosed for adjusting friction surface wear on brake linings and a brake disk of a disk brake. The adjusting device is couplable to a brake application device on the drive side, and to a spindle unit of the disk brake on the output side. The adjusting device includes a drive element on both sides of which a rolling element assembly is axially arranged; a pressure element; an output element coupled to the pressure element for coupling to a coupling wheel; an energy storage element; and a support body, one end of which is connected to a bearing plate and around which the drive element, the rolling element assemblies, the output element and the energy storage element are arranged axially in series with the bearing plate. The energy storage element is arranged between a bearing portion of the support body and the pressure element.

Abstract: A brake assembly that may include a housing assembly, a piston assembly, an operating shaft, and a sensor assembly. The operating shaft may be configured to rotate about an axis to actuate the piston assembly and translate a brake pad assembly from a retracted position to an extended position. The sensor assembly may be configured to detect rotation of the operating shaft.

Abstract: A force transmission device for a disc brake operable to move a friction element of the brake into engagement with a rotary brake disc along a first axis in response to a loading from an actuating member, the device comprising: a guide member having a generally cylindrical guide form; a piston comprising a complementary generally cylindrical outer sliding surface slideable within the guide member, wherein; an anti-rotation formation is provided between the guide member and the piston, the formation comprising a recess extending generally parallel to the first axis and a complementary projection.

Abstract: An actuator for an electrical parking brake system can decrease the number of components and reduce noise generated in an operation of the actuator. The actuator includes a case, a motor installed in the case to provide power, a driving gear provided to a rotary shaft of the motor, a pair of transmission members installed inside the case to reduce torque of the driving gear and transmit the reduced torque, and an output gear provided to an output shaft to additionally reduce the reduced torque transmitted through the transmission member and output the additionally reduced torque through the output shaft.

Abstract: A multiple-piston disc brake includes a brake caliper overlapping brake disc, at least two pressure pistons that are movably arranged in the brake caliper to apply a clamping force to at least one brake pad in the direction of the brake disc, a pressure plate that is coupled to the at least two pressure pistons, and a clamping unit that has a pressure tube and an adjustment device, abridge and a lever. Each of the at least two pressure pistons is mounted in an axially movable manner in a pressure piston guide securely connected to the brake caliper.

Abstract: Disclosed is an electronic disc brake. The electronic disc brake includes a caliper housing at which a piston is installed, a carrier coupled with the caliper housing, a pair of pad plates installed at the carrier to be slidable toward a disc, an adjuster to prevent the pad plates from moving away from the disc and maintain the pad plates at a certain distance from the disc, a push rod screw-coupled to the adjuster, a spindle unit coupled to the push rod and installed at a cylinder of the caliper housing, a spring case forming an accommodation space between the cylinder and the push rod, a low-pressure spring and a high-pressure spring arranged in parallel in the spring case, and a support plate slidably installed in the cylinder so that a gap is formed between the low-pressure spring and the high-pressure spring in the longitudinal direction.

Abstract: A disc brake for a commercial vehicle includes a brake caliper that straddles a brake disc, a brake application device, arranged in the brake caliper, for pressing brake pads against the brake disc. Two parallel, spaced-apart adjusting spindles are mounted in a rotatable manner via a corresponding thread, in a bridge of the brake application device. A wear adjusting device is arranged in the brake caliper and compensates for a wear-related change in the clearance between the brake pad and the brake disc by axially moving the adjusting spindles. A synchronizing device includes a traction drive mechanism which allows the two adjusting spindles to be synchronously rotated. The fraction drive mechanism has a traction mechanism that meshes in a force transmitting manner with drive gears which are effectively connected to the adjusting spindles for conjoint rotation therewith. Each drive gear includes at least one form-fitting element which engages with an outer axial guide of the associated adjusting spindle.

Abstract: Disclosed herein is a disc brake having a carrier at which a pair of pad plates is installed and a caliper housing slidably installed on the carrier and provided with a cylinder allowing a piston to be installed therein, the disc brake including an adjuster installed in the piston, a push rod installed in the cylinder and provided with a flange extending toward an inner circumferential surface of the cylinder, a ramp coupled to the flange to prevent rotation of the push rod and moving along with the push rod and seated in a seating groove provided at a rear wall of the cylinder, a spring case fixed to the cylinder and forming a predetermined accommodation space between the cylinder and the push rod, and an elastic member arranged in the accommodation space of the spring case to provide elastic force to the push rod and the ramp.

Abstract: A multi-part piston for a brake saddle of a hydraulically and/or mechanically and/or electromechanically actuated disk brake is described herein. The piston is a pot open on one side and including a base and a wall attached thereto in one piece. The base can be impinged by brake pressure coming from the inside of the pot so that an outward-facing abutting surface of the base can be pressed against a brake lining. The inside of the pot receives at least one pressure piece associated with a parking brake mechanism. For simplified manufacture in the form of a modular piston system for use in various applications, it is proposed that the pressure piece and the base comprise conical surfaces facing one another for transferring braking pressure.

Abstract: A parking brake actuator for a disc brake caliper having at least one service piston. The parking brake actuator includes a tapered collet having an axial bore for receiving the service piston; a release piston, said release piston in axially alignment with the service piston and said tapered collet, said release piston having an internally disposed taper for co-acting with the taper of said tapered collet; and a biasing means, said biasing means structured and arranged to apply a force to said release piston sufficient to place the parking brake actuator in an actuated condition.

Abstract: The invention relates to a selection of components of a disc brake, in particular for commercial vehicles, having a brake caliper having an installation opening for installing a brake shaft, a first brake shaft and a second brake shaft, wherein the two brake shafts are coordinated with the brake caliper in such a manner that they can be used to apply the brake. According to the invention, the first brake shaft, but not the second, fits through the installation opening. The further invention relates to a disc brake, in particular for commercial vehicles, having a brake shaft and a brake caliper having an installation opening for installing the brake shaft, wherein the brake shaft is coordinated with the brake caliper in such a manner that said brake shaft can be used to apply the brake. According to the invention, the brake caliper and the brake shaft each have a coding, which allows installation of the brake shaft through the installation opening only if the two codings match.

Abstract: This disclosure discloses a motor including a motor body unit configured to output rotation power, a brake unit fixed to a housing of the motor body unit with a bolt, and a collar. The collar is arranged between the motor body unit and the brake unit, and in which the bolt is inserted. The collar forms a space between the housing of the motor body unit and a fixing member of the brake unit. The collar is fixed with its end portion being inserted into at least one of the housing and the fixing member.

Abstract: The present invention provides a disc brake caliper. The disc brake caliper has a housing and a piston for moving a friction element into contact with a rotor. A yoke is provided for at least partially guiding the piston, and the yoke is positioned within the housing and moveable relative to the housing. A guide member along which the yoke is slideable is provided, and the guide member is a component separate to the yoke and the housing, and is mounted to the housing.

Abstract: A self-energizing disc brake includes a brake-internal hydraulic arrangement with a supply circuit and an expansion vessel, a brake application device with a brake application cylinder for applying a brake pad in the direction of a brake disc, a force transmission unit which supports the brake pad at a wedge angle on the brake application device, a tangential-force absorbing cylinder for switching over the wedge angle and being operatively connected to the force transmission unit; an electric-motor actuator which acts on the brake application device via the hydraulic arrangement, a distributor cylinder arranged in series between the electric-motor actuator and the brake application device for pressure boosting, and a control unit for controlling switchover of the wedge angle between the tangential-force absorbing cylinder and the electric-motor actuator. An adjusting device adjusts brake pad wear, and has a movable screw spindle, which is operatively connected to the brake application device.

Abstract: A self-energizing disc brake includes a brake-internal hydraulic arrangement with a supply circuit and an expansion vessel; a brake application device having a cylinder for applying a brake pad toward a brake disc; a force transmission unit supporting the brake pad at a wedge angle on the brake application device; a tangential-force absorbing cylinder for switching over the wedge angle, which is operatively connected to the force transmission unit; an electric-motor actuator for acting on the brake application device via the hydraulic arrangement; and a control unit. The force transmission unit has a deflection lever and a shoulder element attached thereto. Rolling surfaces thereof are in contact with respective corresponding rolling surfaces of a brake application element of the cylinder and a brake pad support device. The deflection lever has a pressure section with a rolling surface in operative connection with the tangential-force absorbing cylinder.

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 caliper parking brake including: caliper housing having one end on which a cylinder is formed and the other end on which a fork is formed to face the cylinder; brake force input terminal rotatably mounted on an end of the cylinder by a parking cable; brake force switching terminal installed within the cylinder on a common axis so as to rotate together with the brake force input terminal; brake force output terminal directly connected to the brake force switching terminal on a common axis; and a brake terminal that is disposed between the fork and the brake force output terminal and stops rotation of a brake disc using the brake force output by the brake force output terminal, wherein the brake force output terminal compensates for abrasion that occurs in the fork and a frictional pad of the piston by moving an initial position of the piston forward.

Abstract: Some of the components of a parking brake mechanism are incorporated between an inner side case and an outer side case, the two case and are combined by engaging lock holes and lock claws, and an inner side auxiliary assembly is formed. In this state, the diameter of circumscribed circle of the lock claws is configured to be smaller. Then, when the inner side auxiliary assembly is incorporated in the cylindrical space, the two lock claws are engaged with a lock concave which is formed on the inner peripheral surface of the cylindrical space by making the two lock claws protrude greatly from the outer peripheral surface of the inner side case.