Abstract: An electro mechanical or pneumatically actuated disk brake, in particular for a utility vehicle, includes a brake caliper or saddle and a brake disk. The brake saddle overlaps the brake disk at least in sections of the outer periphery thereof. The disk brake also includes a tensioning device which is entirely or partially inserted into the brake saddle. The tensioning device is used to produce a tensioning movement between the brake linings and the brake disk. The disk brake further includes at least one and preferably several adjusting devices. The brake disk and/or the brake saddle are arranged on a step with elastic pre-tension when the brake is in the release state.

Abstract: In a cam actuated brake, an adjustable cam disposable intermediate a pair of following surfaces on first ends of a pair of arms. The arms being rotatable about parallel axes and having a pair of opposing brake surfaces at second ends. The cam comprises a body having a first and second opposite cam surfaces adapted to engage the following surfaces and a bore intermediate the cam surfaces and a piston receivable in the bore. The piston is releasably coupled to the bore. The cam further comprises an adjuster for varying the position of the piston in the bore. The piston may be engaged by an actuator so as to wedge the cam between the following surfaces of the arms so as to rotate the first and second arms about their respective axes thereby frictionally engaging an object between the braking surfaces.

Abstract: Disclosed is a brake device, particularly a disc brake, comprising a caliper, brake drum, or similar, and energy accumulator, especially an accumulator spring. The energy accumulator rests on the caliper or similar while being supported on an abutment by means of a lever arm. A mechanism for transmitting resilient forces between the energy accumulator embodying one spring element is created with the aid of a lever arm via the abutment. The brake device is characterized in that the lever arms can take at least two or more different angular positions relative to each other in relation to the abutment.

Abstract: A hydraulically actuated disc brake has at least two hydraulic brake pistons acting upon a brake lining, arranged in a brake housing. The hydraulic disc brake includes a hydraulic synchronization device for reducing oblique wear of the brake lining. The hydraulic synchronization device is interposed between an input pressure line for brake actuation and the brake piston.

Abstract: A disc brake, in particular, for a commercial vehicle, has a brake caliper which engages over a brake disc, brake linings which make contact with the brake disc in a functional position, and a brake application device with which one of the brake linings can be pressed, via at least one adjusting spindle, against the brake disc. An adjustment device is rotationally fixed to the adjusting spindle, by which wear-induced change in the running clearance between the brake lining and the brake disc can essentially be compensated. A closure lid covers the adjustment device and is attached to the brake caliper. A lining wear sensor communicates with a step-down gear mechanism connected to the adjusting spindle. The lining wear sensor is embodied as a contactless sensor which rotates on a concentric path has its change in angular position detected by the lining wear sensor and transmitted to an evaluation device.

Abstract: A hydraulic caliper brake assembly with self-adjusting feature includes a cylindrical body, an elastomer, a pushing rod, a force resisting member, and a retaining ring. The cylindrical body has a chamber. The elastomer is sealing disposed in the chamber and has a receiving hole. The elastomer provides a resilient force. The pushing rod is sealingly received in the receiving hole. The pushing rod has a shank extended therefrom and protruded into the chamber. The shank has a shoulder. The force resisting member is sleeved on the shank. The force resisting member abuts against the chamber to provide a resisting force. The retaining ring is disposed in one end of the shank. The retaining ring is moved with the pushing rod.

Abstract: A self-boosting electromechanical friction brake, having a friction brake lining which is displaceable for actuation in the direction of rotation of a brake disk and which is braced via roller bodies on ramps of an abutment plate. When the brake is actuated, brake disk exerts a frictional force on the brake lining pressed against it, which urges the lining in the direction of an increasingly narrow gap between the ramps and the brake disk to exert a contact pressure that is in addition to that exerted by an actuation device to attain self-boosting. The roller bodies are supported fixedly and rotatably in bearing block on the brake lining whereby the roller bodies move in slaved fashion with the brake lining and always brace the brake lining at the same points.

Abstract: A retraction arrangement for moving a piston in a bore of a caliper to a position of rest after each brake application. The retraction arrangement includes a cylindrical body with a plurality of inward projecting fingers that engage and apply a radial spring force on the piston. Each finger is defined by a cylindrical section that transitions into a first arcuate section that transitions into a radial section that transition into a second arcuate section that engages the piston. The second arcuate section moves with the piston during a brake application causing the fingers to pivots with respect to the cylindrical body resulting in a decrease in the radial spring force while creating an increasing axial spring force in each finger. On termination of the brake application, the axial spring force returns the piston to the position of rest to establish a running clearance between a friction member and the rotor.

Abstract: A brake mechanism fixed to a member allowing limited reciprocal motion and providing a restorative force to the movable member in one direction of movement thereof. A brake mechanism includes a rotor fixed to and wheel about an axle axis has a caliper assembly spanning the rotor with inboard and outboard friction members supported on either side of the rotor for selectively engaging the rotor and braking the wheel. A piston is fixed to the caliper of the inboard friction member for moving the inboard friction member toward the rotor and including a piston seal which, upon removal of fluidic pressure from the cylinder, resiliently urges the inboard friction member away from the rotor. A bracket is fixed to the vehicle supports the caliper on a pair of generally cylindrical guide pins fixed to one of the anchor bracket and caliper assembly and is movable within a pair of generally cylindrical guide pin bores of the anchor bracket and caliper assembly.

Abstract: A disk brake comprising: a brake disk, a moving disk, a fixed disk, a mounting base, a guide rod, a fixed rod, first and second levers, a fixed plate, and first and second spring clamps. Here, one end of the fixed rod is fixed to a plane of the moving disk, the other end of the fixed rod passes through the fixed disk and is fixed to one end of the first/second lever, and the other end of the first/second lever is fixed to the circumferential surface of the fixed disk on the center line of the fixed disk; the fixed plate is fixed to either the guide rod or the mounting base; one end of the first/second spring clamp is connected to the fixed plate, and the other end of the first/second spring clamp is clamped at the middle position between the first and second levers.

Abstract: A linkage positioner for a drum brake, which is used to compensate for braking-related wear, especially on the brake linings, has an overload clutch and a one-directionally rotating or one-way clutch. The overload clutch is embodied as a ball ramp clutch, which is biased by a pressure spring.

Abstract: A disc-brake unit (10) for vehicles on rails, comprising a brake pincer consisting of a pair of jaws (14), provided with relative friction gaskets (16), intended to rub on the two opposite surfaces of a disc (12). The jaws (14) are hinged at one of the ends of a pair of levers (18). The levers (18) are pivoted on respective hinges (20) fixedly connected to the main body of the braking unit (10), and are actuated by a braking force motor (22) provided with at least one first piston (26) that moves with alternate motion along an axis (A). The braking unit (10) also comprises a group (68) for automatically regulating the clearances between the friction gaskets (16) and the disc (12).

Abstract: A disk brake is provided, the disk brake including at least one energy storing element and a deflecting mechanism which is controllably configured to deflect the force flux of the energy storing element in a transverse direction toward a brake disk in order to clamp at least one brake lining against the brake disk.

Abstract: A disc brake is provided, especially for utility vehicles, that comprises a caliper that overlaps a brake disc, a brake application device disposed in the caliper that applies the brake and at least one adjustment device comprising an electrical drive. The disc brake is further provided with a mechanical device that blocks the adjustment device driven by an electromotor against an augmentation of the release play that exceeds a threshold value caused by the electromotor drive.

Abstract: Structure disposed within a brake housing for measuring the displacement of a reference within said brake housing so as to indicate the brake stroke condition on a vehicle braking system.

Abstract: A hydraulic disc brake device comprises: a base assembly mounted on a vehicle, a sliding assembly slideably mounted on the base assembly, a return spring disposed between the base assembly and the sliding assembly, a brake lining assembly, a control valve assembly disposed on the oil pressure system, hydraulic disc brake system that has an antilock effect. The hydraulic disc brake is low cost and has an antilock function.

Abstract: A method of assembling a vehicle braking system retrofit package includes assembling a braking mechanism having a first bias. The method also includes assembling at least one automatic hydraulic brake adjuster (AHBA) having a second bias and a third bias. The method further includes coupling the at least one AHBA in flow communication with the braking mechanism such that the second bias and the third bias cooperate with the first bias to facilitate modulating the braking mechanism to predetermined positions.

Abstract: A disk brake comprising: a pair of friction pads disposed to oppose to both surfaces of a disk rotor respectively, and a caliper having a pad insertion space into which the friction pads can be inserted from radially outside of the disk rotor, wherein at least one of the pair of friction pads is provided with a return spring whose one end abuts against a side of the friction pad opposing to the disk rotor to urge the friction pad to separate from the disk rotor in its axial direction, the one end of the return spring is disposed on the friction pad at intermediate portion in a radial direction of the disk rotor in the pad insertion space of the caliper, and the friction pad is inserted in between the one end of the return spring and a surface of the caliper opposing to the one end.

Abstract: An electromechanically actuatable disk brake with a self-boosting device includes a wear readjusting device which can for instance be adjusted by means of an electric motor as an actuator, to compensate for wear of the friction brake lining.

Abstract: A device for controlling the piston roll-back including a piston comprising a piston body (9) and a bush (10) coaxial to said piston body, said bush being arranged externally to said piston body and having an outer sealing surface, a scraper element (11) seated in a seat provided in the calliper body so as to act pressure-wise against said sealing surface of the bush, and elastic means provided between said bush and said piston body in reciprocal moving apart, said elastic means exhibiting a predetermined elastic constant that determines an elastic action on the piston substantially weaker that the axial friction action exerted by the scraper element so that, when the piston is stressed out of its piston seat, the piston body packs said elastic means or abuts against said bush before a relative sliding occurs between said scraper element and said outer sealing surface of the bush.

Abstract: Disclosed herein is a disk brake for vehicles including a gap adjuster to compensate for a gap between a frictional pad and a disk based upon the wear of the frictional pad. The disk brake includes a disk rotatable along with each wheel of a vehicle, a movable frictional pad configured to press against one side of the disk to generate a braking force, a wedge member having the movable frictional pad attached to one side thereof, the wedge member being movable to the rotation direction of the disk by a drive motor to generate a power such that the wedge member advances to the disk, and a guide member to guide the wedge member such that the wedge member advances to the disk. The disk brake further includes a gap adjuster to uniformly maintain a gap between the movable frictional pad and the disk.

Abstract: A brake application device for vehicles, in particular rail vehicles, which comprises a wear adjuster that is configured as a brake actuator with a screw drive, having a threaded spindle and a nut that can be screwed onto said spindle as the screw parts. At least one of the screw parts is electrically actuated for wear adjustment.

Abstract: A disc brake, particularly for utility vehicles, including a caliper that straddles at least some outer circumferential sections of a brake disc. A device for applying the brake is disposed entirely, or in part, in the caliper. A wear adjusting system is arranged in the caliper and is used for adjusting the lifting clearance between the brake pads and the brake disc. The wear adjusting system is provided with at least one adjusting device in the form of a rotary mechanism. A recharageable energy accumulator, such as a flat coil spring, is provided as a drive unit for the rotary mechanism.

Abstract: An arrangement for reducing a rotational speed of a rotating member includes a first and second pressure member arranged at a distance from each other and an opposite sides of the rotating member for movement relative to each other between a retracted position and a forward position engaging the rotating member. The arrangement includes an adjustment device including a friction structure forming a friction joint with one of the pressure members for maintaining a position relative to one another provided a maximum friction force is not exceeded. The arrangement further includes a spring acting on the friction structure for separating the pressure members after having been compressed. The spring has a gradually increasing spring force between a non-compressed state and a totally compressed state.

Abstract: An electric brake device comprises a caliper holding braking members and having an electric motor attached thereto, a reduction mechanism for transmitting an input rotation of one input element thereof from the electric motor to two output elements thereof at reduced speeds, a rotation-linear motion converting mechanism for converting the rotation of one of the output elements into a linear motion of one of the braking members, and a thrust force support member connected to the other output element and screw-engaged with the caliper, wherein the rotation-linear motion converting mechanism is supported by the thrust force support member to be movable together in a thrust direction and is provided with rotation limiting portions for limiting the rotation in a reverse direction of the one output element to a predetermined range, and wherein the thrust force support member is set to be greater in resistance to operation than the rotation-linear motion converting mechanism.

Abstract: A device for displacing an object a certain distance is disclosed. In one particular context, the device may be used in a brake piston. The device features a driving member and an interconnecting member located between the driving member and the object being driven (e.g., the brake piston). The driving member and the interconnecting member form a friction joint between them. The friction joint is strong enough that the driving member can push the object back to a retracted position when it is no longer being actuated, but weak enough that the interconnecting member, and hence the object, can be pushed forward relative to the driving member when the driving member reaches a maximum forward position. This lets the object (e.g., the piston) automatically adjust its non-actuated position so the same amount of fluid is required to move the piston forward as associated brake pads get thinner.

Abstract: A brake system includes a brake disc having a first disc face and a second disc face on a first side and a second side, respectively, of the brake disc. The brake disc is mounted rotatably fast with but longitudinally slidable on a rotatable shaft. The brake disc is clampable between a first friction surface of a fixed brake pad positioned on the first side of the brake disc and a second friction surface of a moveable brake pad positioned on the second side of the brake disc. The system further includes a disc positioner operable to define a running clearance between the first disc face and the first friction surface. The disc positioner is adjustable to maintain the running clearance as the fixed brake pad wears. A biasing member located on the second side of the brake disc maintains contact between the disc positioner and first disc face of the brake disc.

Abstract: A disc brake for a commercial vehicle, operated pneumatically or by electric motor, comprising a brake caliper, an application device and at least one adjuster device arranged with the brake caliper, is characterized in that both adjuster elements of the at least one adjuster device are fixed in a non-rotating manner to a common connector plate in the region thereof facing the brake lining and/or a single- or multi-piece thermal insulation layer is at least partly applied to the connector plate or parts connected thereto on the side thereof facing the relevant braking lining to form a region like a pressure piece.

Abstract: An adjuster for an air disc brake assembly is used to drive tappet members on opposing sides of a rotating brake disc to adjust brake pad position in response to pad wear. The adjuster includes a one-way clutch that permits the tappet members to be driven for adjustment in a brake apply direction and prevents adjustment in a brake release direction. The adjuster includes an adjuster input shaft, which is actuated by a brake operating shaft, and an adjuster body that supports first and second adjuster members. The one-way clutch couples the adjuster input shaft to the adjuster body such that the first adjuster member drives a first tappet assembly to adjust a first brake pad on one side of the rotating brake disc, and the second adjuster member drives a second tappet assembly to independently adjust a second brake pad on an opposite side of the rotating brake disc.

Abstract: A disc brake, particularly for commercial vehicles, is provided having a caliper reaching over a brake disc, a brake application device arranged in the caliper for applying the brake, as well as an adjusting system arranged in the caliper for compensating brake pad and/or disc wear by adjusting the distance between the brake pad and the brake disc. The caliper has a two-part construction including an application-side caliper part and a reaction-side caliper part. The reaction-side caliper part is designed such that it frames the brake disc in its upper circumferential area. The adjusting system has at least one or more adjusting devices also arranged on the reaction side of the brake disc, and preferably on each side of the brake disc.

Abstract: The invention relates to a disk brake, particularly for commercial vehicles, comprising a brake caliper covering a brake disk, a tensing device arranged in a brake caliper for tensing the brake pads on both sides of the brake disk in the direction thereof, and at least one regulating system arranged in the brake caliper in order to equalize the brake pad and/or disk deterioration by adjusting the distance between the brake pad and the brake disk. The invention is characterized in that at least one or more adjusting rotational devices which are driven by an electric motor are provided on each side of the brake disk to adjust the axial distances between the brake pads and the brake disk. According to a method for controlling the regulating system of the brake disk, the regulating rotational device is individually controlled on both sides of the brake disk.

Abstract: A disc brake includes a piston seal made of rubber that is shaped to fit into a seal groove on the inner surface of a cylinder of a caliper for a brake piston. To prevent braking effectiveness from being impaired, even if the temperature of a caliper rises in a disc brake for a vehicle, the piston seal and/or the seal groove is shaped to control and contain the effects of thermal expansion due to the heat of the disc brake. The clearance between the piston seal and the seal groove is removed and clearance is provided between parts of the periphery of the piston seal and the seal groove.

Abstract: A method and apparatus for selectively coupling members in a brake actuating mechanism. A coupling member is located between an outer clutch sleeve and a clutch cap. The coupling member exerts a pre-determined amount of force on both the outer clutch sleeve and the clutch cap. The force couples the outer clutch sleeve and the clutch cap. The coupling member allows the outer clutch sleeve and the clutch cap to decouple if a torque acting on the clutch cap exceeds the force exerted by the coupling member.

Abstract: A control system for a disc brake adjuster mechanism includes a controller and an electric adjuster motor for operable connection to an adjuster mechanism for driving a friction lining towards and away from a disc brake rotor to maintain a predetermined running clearance between the brake rotor and the friction lining when a brake is not applied. The system further includes a brake displacement sensor, and the controller is programmed to determine the brake displacement at which a predetermined load on the friction lining is achieved due to the contact with the disc brake rotor. The predetermined load is determined from a parameter of the electric adjuster motor or adjuster mechanism. The system is programmed to measure the brake displacement during brake release.

Abstract: An electromechanically actuated disk brake with mechanical self-boosting includes an automatic wear readjusting device, which can for instance have a positive-engagement detent device. An increased air clearance caused by wear of friction brake linings is prevented by the invention, which thus also prevents an increase in the displacement of the friction brake lining in the direction of rotation of the brake disk when the disk brake is actuated in order to attain the self-boosting.

Abstract: A motor-driven disk brake having a caliper containing a piston for pressing a brake pad, a rotary actuator and a rotary-to-rectilinear motion converting mechanism for transmitting rotation of the rotary actuator to the piston after converting it into rectilinear motion. The piston is driven in response to rotation of the rotary actuator to press the brake pad against a disk rotor, thereby generating braking force. A brake releasing mechanism for returning the rotary-to-rectilinear motion converting mechanism to its initial position in the event of a failure in the rotary actuator is interposed between a rotating member and a rectilinearly moving member that constitute the rotary-to-rectilinear motion converting mechanism. The brake releasing mechanism has an urging device for generating a torque in the direction for returning the piston in response to the rotation of the rotating member in the direction for advancing the piston.

Abstract: A parking brake monitor and adjustment control system controls parking brake operation of an electromechanically actuated brake system which applies a parking brake force to a wheel. The system includes a monitor circuit for producing an output signal which intermittently causes the brake system to readjust the parking brake force applied to the wheel.

Abstract: The present invention relates to a brake device for a bike, and more particularly to an antilock disc brake device, which is mounted to the front/back fork of a bike, and includes a slider, plural steel balls, a fluted disc and a shaft pad. The present invention is not only capable of preventing the brake from locking up, but also it prevent unstable ride caused by a sudden brake at high speed.

Abstract: A slack adjustment system for a disk brake includes a biasing member to adjust slack in a brake system. The biasing member operates independently of pressure applied to a brake actuator. A locking device secures the adjustment mechanism in place when adjustment is not necessary. Release of the locking member allows the biasing member to adjust the resting position of brake pads independent of driver applied brake pressure.

Abstract: The invention relates to a method for actuating a wheel brake assembly, in particular an electromechanical wheel brake assembly (10) or a mechanical system involving friction and having spring elasticity. To increase a braking force once a quasi-static terminal state of the wheel brake assembly (10) is reached, the invention proposes actuating the wheel brake assembly (10) for a brief period of time in the release direction and then to re-tighten it; the period of time of the actuation in the release direction is selected to be so brief that the braking force is reduced, if at all, only imperceptibly.

Abstract: A method of accommodating wear in an electrically operated brake assembly includes setting a home position when a brake shoe engages a brake drum. A stepper motor drives the brake shoes into engagement with the drum. Upon engagement of the brake shoes with the drum, the stepper motor slips. Slipping of a stepper motor indicates that a home position has been reached. Upon release of the brake, the brake shoe is moved away from the drum a fixed distance. The fixed distance is an optimal distance between the friction member and the rotating member such that regardless of wear, the distance relationship between the brake shoe and drum is maintained.

Abstract: A vehicular brake apparatus, which is provided at a shaft of a motor that revolves due to depression of a brake pedal, has a variable gear mechanism including a non-circular spur gear that changes a reduction ratio from a high gear ratio to a low gear ratio along with revolution. Revolution is converted to linear movement by roller bearings interposed between two ramp portions each having a straight inclined surface, and a friction member is pressed against a disk by a friction material holding portion being moved in a straight direction. Further, a braking force is generated on the disk by the friction member and another friction member provided on the opposite side of the caliper.

Abstract: An electromechanically actuatable disk brake with a self-boosting device includes a wear readjusting device which can for instance be adjusted by means of an electric motor as an actuator, to compensate for wear of a restoring device.

Abstract: A slack adjustment system for a disk brake includes a biasing member to adjust slack in a brake system. The biasing member operates independently of pressure applied to a brake actuator. A locking device secures the adjustment mechanism in place when adjustment is not necessary. Release of the locking member allows the biasing member to adjust the resting position of brake pads independent of driver applied brake pressure.

Abstract: A brake apparatus includes a brake disk secured to a shaft and a reaction plate secured to a housing. The brake apparatus further includes a fluid actuated piston which urges the brake disk against the reaction plate to slow rotation of the shaft and an adjustment member positioned by the piston. The brake apparatus yet further includes a spring interposed between the adjustment member and the piston. The piston positions the adjustment member relative to the brake disk when fluid is applied to said piston. The spring urges the piston away from the adjustment member and brake disk when fluid pressure is removed from the piston.

Abstract: The present invention relates to an electromechanically actuated partially lined disk brake suitable both for realizing driving and parking brake functions. For this purpose, the partially lined disk brake comprises a brake caliper with an electromechanical actuating unit, by means of which the partially lined disk brake can be clamped by way of at least one interposed actuating element. The object of the invention is to achieve a compact design and a parking brake that can be actuated electrically. The brake caliper includes a multi-step reduction gear arranged between the integrated actuating unit and an actuating element. The actuating unit, reduction gear and actuating element are arranged in a recess of the brake caliper that is configured as a housing. According to the invention, the multi-step reduction gear is configured as a non-self-locking device, i.e.

Abstract: A brake adjustment mechanism maintains a brake actuating piston (17) stroke within a preferred range compensating for brake wear by repositioning the piston along a deformable adjustment tube (33). The tube is deformed when excessive piston travel draws the tube along a tube expanding member (51). Adjustment mechanism stresses are minimized by insuring the annular regions of contact between the outer surface (59) of the expanding member (51) and the tube (33) as well as between the inner surface (57) of the expanding member (51) and an expanding member retaining groove (55) in a cantilevered pin (49) are smooth lacking both sharp corners and flat regions. The expanding member (typically a split ring) engaging the deformable tube along an annular surface (59) of the tube and also engages the annular groove along an annular surface (55) of the pin groove. Normals (63) to the deformable tube surface are more nearly orthogonal to the pin axis (43) than normals (61) to the pin groove annular surface.

Abstract: The present invention concerns a disc brake having a brake mechanism. The disc brake comprises a caliper (16) reaching over a brake disc and having a cavity for receiving the brake mechanism. The brake mechanism comprises a bearing bracket (30) received from the inside in an opening (17) of the caliper (16) in the side wall furthest from the brake disc. The brake mechanism comprises an adjuster mechanism (23) an adjustment shaft (40) and a reset shaft (41). Means (24) are provided for transferring movement between the adjuster and reset shafts (40, 41). The adjuster mechanism is actuated by a lever pin (43) on a lever (31) of the brake mechanism and is received in the bearing bracket (30) at assembly.

Abstract: A bicycle disk brake system includes two linings located on two sides of a brake disk and an arm is fixed to a bicycle frame. Two adjusting rods are fixed to the arm and two mounting pieces made of flexible material are mounted to the two respective shanks of the two adjusting rods. A clamp portion is defined around the hole of each mounting piece and the two shanks are clamped by the clamp portions. Two spring portions extend from each of the mounting pieces and two extensions extend from the two spring portions so as to be fixed to a frame through which the two shanks extend. The frame is shifted by the spring portions and the clamp portion when braking so as to adjust the gaps of the linings and the brake disk.

Abstract: An adjuster assembly for compensating for brake lining wear in a brake unit. The brake unit has a housing for accommodating the adjuster assembly, a brake lever journalled to the housing, and a force transmitter for transmitting displacement of the brake lever to at least one brake lining. The adjuster assembly includes a support shaft, sensing means for cooperation with the brake lever, a drive ring assembly cooperating with the sensor, and an adjuster gear. The adjuster gear cooperates with the drive ring assembly. To prevent unwanted release of the adjuster assembly, the engagement surface is provided with rotation a rotation preventer adapted for releasable engagement with engagement member cooperating with the housing for preventing rotation of the transmission ring assembly in one direction.