Self-adjusting Means Patents (Class 188/71.8)
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Publication number: 20140166412Abstract: A vehicle brake assembly including a brake caliper defining a caliper housing and defining a plane of rotation of a brake disc, the housing having an opening facing the plane of rotation of a brake disc, a cover plate for closing the opening and an actuator assembly at least partially mounted in the housing, wherein the actuator assembly includes at least one piston for moving a friction element into contact with a brake disc, an adjuster mechanism for adjusting the effective length of the at least one piston, the adjuster mechanism including an adjuster shaft, the adjuster shaft being fixed to the cover plate by a spring clip arrangement.Type: ApplicationFiled: December 18, 2013Publication date: June 19, 2014Applicant: Meritor Heavy Vehicle Braking Systems (UK) LimitedInventors: Alexander Howard, Yahia Abdel-Fattah, Brian Wiggins
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Publication number: 20140151163Abstract: A wear adjuster, securable to disc brake caliper structure includes, a stem extending along an axis about which the stem is rotatable in opposite directions, a spindle driver securable to an axial end of the stem to transmit rotational motion of the stem to an adjusting spindle, and an input element receiving input force supplied to the wear adjuster to produce rotation of the stem. A running clearance element is rotatable together with the input element to a limited extent, and a ratchet arrangement, located between the input element and the running clearance element, initiates any necessary adjustment for wear after rotation of the input element beyond the limited extent, and completes such adjustment during return rotation of the input element. To avoid transmitting an excessive amount of the input force received by the input element, a lost motion connection is defined between the ratchet arrangement and the input element.Type: ApplicationFiled: November 30, 2012Publication date: June 5, 2014Inventors: Ronald S. PLANTAN, Richard L. LANTZ, JR., Dennis A. WOLF
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Publication number: 20140112747Abstract: A brake device for a work vehicle includes a brake unit including a brake disc plate and a piston having a slide portion slidably supported by an axle housing and a pressure portion for pressing the brake disc plate. A slack adjuster mechanism is disposed on the axially opposite side of the brake disc plate with respect to the piston while being disposed further on an inner peripheral side than the slide portion of the piston. The slack adjuster mechanism maintains a clearance between the piston and the brake disc plate at a predetermined clearance by mechanically adjusting a non-actuated position of the piston.Type: ApplicationFiled: October 11, 2012Publication date: April 24, 2014Applicant: KOMATSU LTD.Inventors: Hiroaki Ohnogi, Fumiaki Nakada, Keita Naruge
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Patent number: 8689947Abstract: In a disc brake device, a piston is movably supported to a cylinder portion of a caliper, friction pads are operable to push a disc rotor as the piston moving frontward during pressurization, a seal mechanism arranged at the cylinder portion is operable to return the piston to an initial position during depressurization, and the seal mechanism is constituted with a movable element arranged between the cylinder portion and the piston (15) as being movable frontward in the same direction of the piston, a first seal member elastically arranged between the piston and the movable element to make the movable element accompany the piston, a low elasticity member being compressively deformable with initial pressurization of the piston via the movable element, and a high elasticity member being compressively deformable with pressurization of the piston via the movable element.Type: GrantFiled: September 11, 2009Date of Patent: April 8, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroshi Isono, Michio Suzuki
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Publication number: 20140083804Abstract: A disk brake device has a rotor having a braking surface, a caliper, an outer pad and an inner pad each disposed to face the braking surface, and a braking operation mechanism which performs an operation of pressing the two pads against the braking surface. The braking operation mechanism includes a base plate, a wedge plate which holds the inner pad, a first movement conversion mechanism which moves the wedge plate in a direction perpendicular to the braking surface, while moving the wedge plate to slide relative to the base plate in a rotating direction of the rotor in parallel to the braking surface, an electric motor unit which outputs a rotational driving force, and a second movement conversion mechanism which moves, using the rotational driving force of the electric motor unit, the wedge plate to slide in the rotating direction of the rotor in parallel to the braking surface.Type: ApplicationFiled: May 2, 2012Publication date: March 27, 2014Applicant: TBK CO., LTD.Inventors: Yoshihiro Yasuda, Makoto Ohsawa
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Patent number: 8678145Abstract: A pneumatic or electromagnetically actuated disc brake includes a caliper spanning a brake disc, a brake application unit disposed in the caliper and having a brake lever, at least one actuating spindle axially displaceable by the rotary lever, and a wear adjustor actuated by the brake lever and positioned in the brake caliper, by which a wear-induced change in an air gap between a brake pad and the brake disc can be substantially compensated for by way of an axial adjustment of the actuating spindle. The wear adjustor includes a spur gear segment extending in the pivot direction and disposed on the lever and engaging with a crown gear operationally connected to the actuating spindle for adjusting.Type: GrantFiled: October 20, 2011Date of Patent: March 25, 2014Assignee: KNORR-BREMSE Systeme fuer NutzfahrzeugeInventors: Jose Camilo-Martinez, Michael Peschel, Robert Trimpe
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Publication number: 20140069750Abstract: A brake actuator converts the rotation of an electric motor into a linear movement to transmit the linear movement to a piston and, by the piston, presses a brake pad against a disc rotor to generate a brake force on a wheel. When a braking operation is finished, a brake control device rotates the electric motor in a direction corresponding to a return direction and detects a rotational position of the electric motor when the brake force is removed. The brake control device further rotates the electric motor in the return direction and restricts the rotation of the electric motor by a lock mechanism after adjusting the rotational position of the electric motor so that the difference between the rotational position when the brake force is removed, and the present rotational position of the electric motor comes into a reference rotational range.Type: ApplicationFiled: May 23, 2012Publication date: March 13, 2014Applicant: ADVICS CO., LTD.Inventors: Shun Nohira, Yusuke Oshio
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Patent number: 8662277Abstract: A brake mechanism includes a fixed housing in which the brake mechanism substantially resides. A plate closes the fixed housing and includes a cylindrical portion extending partially within the fixed housing. A parking piston and a service piston are employed to act against a brake stack which includes a plurality of stators and rotors interleaved together. A wear adjuster is press-fit onto the cylindrical portion of the plate and engages the service piston during actuation of the service piston and compensates for wear of friction material from the rotors or stators such that the distance between the service piston and the brake stack is substantially the same during the life of the brake mechanism. If neither the service piston nor the parking piston engage the brake stack prohibiting rotation of the input drive, the planetary gear set drives the rotating output drive with respect to the fixed housing.Type: GrantFiled: December 22, 2011Date of Patent: March 4, 2014Assignee: Fairfield Manufacturing Company, Inc.Inventor: Benjamin Warren Schoon
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Patent number: 8636118Abstract: A method is provided for fixing an adjustment device on a disc brake, particularly a pneumatically actuated disc brake. The adjustment device is inserted in a previously adjusted idle position into an adjusting spindle of the disc brake, wherein a coupling of a shift fork of the adjustment device is carried out with a rotating lever of the disc brake, and a centering is carried out by a bearing disc of the adjustment device in a receptacle of a brake caliper. The adjustment device is positioned by twisting the same. The adjustment device is secured on the disc brake by locking the bearing disc on the brake caliper by a locking element.Type: GrantFiled: January 28, 2011Date of Patent: January 28, 2014Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbHInventors: Johann Iraschko, Georg Kempinger, Florian Orgler
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Publication number: 20140000990Abstract: A friction brake device for a vehicle includes: a hydraulic brake unit including a piston member for pressing a friction member by advancement; an electric brake unit including a nut member being relatively movable in a piston movement direction with respect to the piston member by a motor and for pressing the piston member by advancement; a piston return mechanism including a biasing member for making biasing force, oriented in a retreat direction, elastically act on the piston member in accordance with a relative advancement amount of the piston member with respect to the nut member; and a controller for controlling the motor. The controller determines whether an adjustment permission condition associated with a wear amount of the friction member is satisfied. When the condition is satisfied, the controller allows the motor to perform a relative position adjustment of the nut member with respect to the piston member.Type: ApplicationFiled: March 18, 2011Publication date: January 2, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takahiro Shiraki
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Patent number: 8596423Abstract: An adjusting device is provided for adjusting wear of brake pads and a brake disc of a pneumatically actuated disc brake, having a rotary lever-actuated application device. The adjusting device is insertable into an adjusting spindle of the disc brake and attached to a brake caliper of the disc brake by way of a bearing disc. A drive ring is axially disposed on a bushing of a powershift/overload clutch. The powershift/overload clutch is axially disposed between the drive ring and a clutch sleeve for a spring. The clutch sleeve has a sleeve and a clutch insert that may be axially inserted into the sleeve in a positively engaged manner.Type: GrantFiled: March 23, 2011Date of Patent: December 3, 2013Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbHInventor: Johann Iraschko
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Patent number: 8577531Abstract: A system and method for the automatic control of wheel brake-slip in a motor vehicle with an electric drive (2), including the following steps: detecting a brake signal (14) by means of a slip control device (9), at which point the slip control device (9) generates an electric drive signal (15) and a friction brake signal (16) for the automatic control of a predetermined slip value of a wheel (1) of the motor vehicle, transmitting the electric drive signal (15) to an electric drive control device (6) and transmitting the friction brake signal (16) to a friction brake control device (12), at which point a friction brake control device (12) activates a friction brake (10) of the wheel (1) according to the friction brake control signal (16) to generate friction brake signal (16) to generate friction brake torque and an electric drive control device (6) activates electric drive (2) according to electric drive signal (15) to generate electric drive torque.Type: GrantFiled: July 9, 2010Date of Patent: November 5, 2013Assignee: Continental Teves AG & Co. OHGInventors: Ákos Semsey, Michael Döricht
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Patent number: 8528707Abstract: Disclosed is a disc brake for a vehicle, such as an electronic wedge brake, capable of preventing a disc from being subject to the moment due to misalignment of inner and outer friction members with respect to a disc. The disc brake includes a disc rotating together with a vehicle wheel, inner and outer friction pads disposed at both sides of the disc, respectively, a wedge unit installed at rear sides of the inner and outer friction pads to press the inner and outer friction pads against the disc, a driving device that operates the wedge unit for a braking operation, and a sync member for synchronizing braking positions of the inner and outer friction pads with respect to the disc. Since the disc is prevented from being subject to the moment, uneven wear does not occur in the friction member and/or the disc and deformation of the disc is prevented.Type: GrantFiled: December 4, 2009Date of Patent: September 10, 2013Assignee: Mando CorporationInventor: Myoung June Kim
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Patent number: 8505695Abstract: 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.Type: GrantFiled: April 1, 2008Date of Patent: August 13, 2013Assignee: Donelson Brake Systems, LLCInventors: Damian Paul Kubick, Terrence Christopher Donelson, Michael James Donelson
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Publication number: 20130186716Abstract: Disclosed herein is a disc brake which may improve restoration of a piston which occurs when braking operation is terminated. The disc brake having a carrier and a caliper housing includes an adjuster installed inside the piston to maintain the pad plates at a distance from the disc, a pull-rod installed in the cylinder, a front portion thereof being screwed to the adjuster and a rear portion thereof being provided with a flange extending toward an inner circumferential surface of the cylinder, a support member coupled with a rear wall of the cylinder to support the pull-rod and seal an inside of the cylinder, a spring case adapted to have one end fixed to the support member and form a predetermined accommodating space, and an elastic member arranged in the accommodating space of the spring case to return the piston to an original position thereof.Type: ApplicationFiled: January 25, 2013Publication date: July 25, 2013Applicant: MANDO CORPORATIONInventor: Mando Corporation
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Publication number: 20130180810Abstract: A disc brake for a motor vehicle includes a spring arrangement mounted on at least one mounting tongue of a brake pad carrier. The spring arrangement provides a predetermined spring travel, which is dimensioned such that a movement of the brake pad carrier for actuating the brake is permitted without brake pad wear compensation and such that when using up the predetermined spring travel the brake pad arrangement contacts the spring arrangement for brake pad wear compensation and moves the latter within a brake pad arrangement guide in order to compensate brake pad wear.Type: ApplicationFiled: December 23, 2010Publication date: July 18, 2013Applicant: Lucas Automotive GmbHInventors: Christian Schroeter, Frank Madzgalla, Manfred Haupt, Marco Becker, Frank Laubcnthal, Markus Mallmann
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Patent number: 8474579Abstract: An electromotive brake system may include a caliper housing, a first and second friction pads, a brake disk disposed in between, a pressurizing member connected to the second friction pad, a push rod with a push rod groove, an operating disk inserted in the push rod groove, first and second springs, a rotating ramp adapted to convert the rotational movement of a motor into a linear movement of a non-rotating ramp by a ball disposed between the rotating ramp and the non-rotating ramp. The electromotive brake system may further include first and second catching portions, a plurality of teeth and corresponding engaging protrusion of the teeth. The plurality of teeth and the protrusion may have slanted or curved surfaces.Type: GrantFiled: July 14, 2011Date of Patent: July 2, 2013Assignee: Hyundai Motor CompanyInventor: Dongyoon Hyun
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Patent number: 8469157Abstract: A brake assembly is provided for a utility vehicle. After a brake operation, a clearance between a control member and an intermediate part and/or between a brake element and an intermediate part is adjusted by means of a displacement or restoring unit arranged in an intermediate part. Wear, and the associated change of clearance, can be compensated for by means of friction gripping devices, located respectively in the control member and in the brake element.Type: GrantFiled: July 13, 2009Date of Patent: June 25, 2013Assignee: AGCO GmbHInventors: Johann Dobler, Sven Krieger, Hajo Pargmann, Hans-Peter Zeiler
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Patent number: 8464849Abstract: A disk brake including: a brake pad; a piston; a cylinder bore; an annular sealing groove formed on the cylinder bore; and a rectangular piston seal fitted into the sealing groove sealing between the piston and the cylinder bore, wherein the sealing groove includes: a bottom surface portion inclined as the sealing groove expands its diameter; a lateral surface portion that extends from one end of the bottom surface portion, the one end being a side where the sealing groove has the maximum diameter; and a chamfered portion, and wherein an inclined angle of the bottom surface portion is 2 to 8 degrees, an angle between the bottom surface portion and the lateral surface portion is 82 to 89 degrees, and with the piston installed into the cylinder bore, the piston seal abuts against the bottom surface portion and the lateral surface portion of the sealing groove.Type: GrantFiled: January 28, 2010Date of Patent: June 18, 2013Assignee: Hitachi Automotive Systems, Ltd.Inventors: Keisuke Nanri, Kimiyasu Kono
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Publication number: 20130140114Abstract: An adjuster system for adjusting the position of a brake pad relative to a brake disc so as to maintain a suitable running clearance between the pad and disc in a disc brake. The system comprises a manual rewind apparatus to reset the position of the brake pad when replacement thereof is required. The manual rewind apparatus has a transmission path extending from a rewind tool engaging portion to a brake pad engaging portion of the system. The manual rewind apparatus is configured such that when a rewind torque above a pre-determined torque is applied to the transmission path by a rewind tool no damage is caused to components along the transmission path.Type: ApplicationFiled: December 3, 2012Publication date: June 6, 2013Applicant: MERITOR HEAVY VEHICLE BRAKING SYSTEMS (UK) LIMITEDInventor: Meritor Heavy Vehicle Braking Systems (UK) Limited
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Patent number: 8408366Abstract: The bottom surface of a seal groove provided in a cylinder bore has a first slant portion and a second slant portion. A transition point between the first slant portion and the second slant portion is located closer to the opening of the cylinder bore than the center in the cylinder bore axial direction of the seal groove. A gap is formed between the outer peripheral surface of a piston seal member and the bottom surface of the seal groove, and the surface pressure applied to the bottom surface of the seal groove from the piston seal member is higher at the cylinder-bottom-side end of the piston seal member than at the cylinder-opening-side end thereof. Thus, it is possible to suppress the movement of the piston toward the cylinder bore bottom due to thermal expansion of the piston seal member.Type: GrantFiled: March 23, 2011Date of Patent: April 2, 2013Assignee: Hitachi Automotive Systems, Ltd.Inventors: Kimiyasu Kono, Keisuke Nanri
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Patent number: 8393440Abstract: 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.Type: GrantFiled: April 5, 2007Date of Patent: March 12, 2013Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbHInventors: Johann Baumgartner, Aleksandar Pericevic
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Publication number: 20130008749Abstract: 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.Type: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Inventors: Stefan Sandberg, Hans Welin
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Publication number: 20120305343Abstract: A disk brake of a rail vehicle, having a brake caliper, the caliper arms of which are coupled with one end to brake shoes and with the other end to a wear adjuster, the length of the wear adjuster is adjustable by a control mechanism depending on the stroke of a brake force motor. A control rod of the control mechanism acts upon an adjusting element of the wear adjuster, the adjusting element includes a freewheeling mechanism mounted in a housing of the wear adjuster and a stop section of the adjusting element loaded in a self-adjusting starting position against a stop of the housing by at least one return spring element. The stop contains at least one element that is elastic in the direction of abutment.Type: ApplicationFiled: January 27, 2011Publication date: December 6, 2012Applicant: KNORR-BREMSE SYSTEME FÜR SCHIENENFAHRZEUGE GMBHInventors: Christian Ebner, Michael Lehneis, Diego Rodriguez
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Patent number: 8315771Abstract: A method for controlling a self-energizing disc brake having an electric actuator in which an activation force applied to the actuator is amplified using a self-energizing device arranged between the actuator and brake lining is described. The method has a brake application unit for applying at least one brake lining to one side of a brake disc by carrying out an application movement of the brake lining relative to the brake disc, the application movement having at least a first movement component in a direction parallel to a rotational axis of the brake disc and a second movement component in a direction tangential to the rotational axis of the brake disc. The method includes also controlling at least one electromotive drive for activating the brake application unit. Rotation of the shaft of the electromotive drive is converted to a non-linear displacement of the brake pad in the tangential direction.Type: GrantFiled: September 28, 2005Date of Patent: November 20, 2012Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbHInventors: Johann Baumgartner, Matthias Seidenschwang, Ernst Dieter Bieker, Luise Ulrike Bieker nee Rothe, legal representative, Dirk Ganzhorn
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Patent number: 8302741Abstract: A disk brake caliper with an integrated parking brake comprising a housing, a piston, an adjust screw, a ramp nut, a ramp nut return, a ramp shaft and a fix cage. The ramp nut has a body and a head at one end of the body. The fix cage is secured to the inner wall of the housing, which has a hollow structure and through which the body of the ramp nut passes. One of the fix cage and the head of the ramp nut is provided with a locking lug and the other of the fix cage and the head of the ramp nut is provided with a locking notch for mating with the locking lug to prevent the ramp nut from rotating relative to the housing.Type: GrantFiled: March 30, 2010Date of Patent: November 6, 2012Assignee: RWI Company Limited S.A.Inventors: Yiming Chen, Jianmin Gu, Willson Sun
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Patent number: 8286759Abstract: A pneumatically actuatable disc brake has a caliper straddling a brake disc. One brake pad on an application side being actuatable by a rotary lever of a brake application device. A brake cylinder, which can be pressurized using air pressure, is attached to a flange of calliper. The brake cylinder engages into the rotary lever via a cylinder plunger and has a return spring for returning the cylinder plunger to an unstressed initial position. The return spring abuts against the base of a cover supported on the flange. The disc brake is configured such that a self-energizing device is provided having a self-energizing factor selected such that the brake automatically releases itself after braking. The flange forms an abutment for the return spring.Type: GrantFiled: December 30, 2010Date of Patent: October 16, 2012Assignee: Knorr-Bremse Systeme fuer Nutzfahrzeuge GmbHInventors: Johann Baumgartner, Robert Gruber, Aleksandar Pericevic, Steffen Geissler, Robert Trimpe
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Publication number: 20120255817Abstract: In a method for displacing and storing brake fluid for a hydraulic brake system of a vehicle which brake system has at least one hydraulic accumulator, at least one brake booster and at least one brake circuit, the brake booster is configured in such a manner, that even without an action of the driver, actuation of the brake booster allows a volume of brake fluid to be automatically displaced. The brake fluid is displaced into the hydraulic accumulator and stored, by automatic actuation of the brake booster, and at least a portion of the stored brake fluid is emptied by the hydraulic accumulator into the brake circuit as a function of the operating state of the brake system.Type: ApplicationFiled: May 5, 2010Publication date: October 11, 2012Inventors: Herbert Vollert, Reinhard Weiberle
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Patent number: 8281904Abstract: 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.Type: GrantFiled: June 5, 2008Date of Patent: October 9, 2012Assignee: Mando CorporationInventor: Joo Gon Kim
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Publication number: 20120217104Abstract: An economical, light and reliable hydraulic braking system for braking a moving mass includes a pressure element or press part for pressing onto a brake surface under frictional contact, a brake actuator filled with hydraulic fluid for producing pressure in the pressure element and a spacing device for adjusting play between the pressure element and the brake surface when the brake system is in a released or non-active position. The spacing device includes a hydraulic accumulator for accumulating a predefined volume of hydraulic fluid at a minimum pressure. The hydraulic accumulator can be connected to the brake actuator, thus avoiding the use of mechanical stopping or blocking devices.Type: ApplicationFiled: August 24, 2010Publication date: August 30, 2012Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Matthias Liermann, Christian Stammen
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Publication number: 20120193176Abstract: A brake system is provided, the brake system having a brake valve having a first mode and a second mode. A retractor is in fluid communication with the brake valve, and a brake assembly is in fluid communication with the retractor. When the brake valve is in a first mode, the brake assembly engages, and when the brake valve is in a second mode, the brake retractor disengages the brake assembly via a fluid vacuum.Type: ApplicationFiled: January 31, 2011Publication date: August 2, 2012Inventor: Richard N. Knowles
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Patent number: 8225910Abstract: A device for controlling roll-back of a piston in a brake caliper includes a bush coaxial with and external to the piston. The bush has an outer sealing surface, and a scraper element seated in the caliper body acts against the sealing surface of the bush. An elastic element between the bush and the piston has a elastic constant selected so as to provide an elastic force on the piston substantially weaker that the axial friction force exerted by the scraper element. When the piston is pushed out of its piston seat, the piston packs the elastic means or abuts against the bush before relative sliding occurs between the scraper element and the outer sealing surface of the bush.Type: GrantFiled: November 16, 2005Date of Patent: July 24, 2012Assignee: Freni Brembo S.p.A.Inventors: Mauro Piccoli, Luca Gelfi
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Patent number: 8220593Abstract: A self-energizing disc brake having an electric actuator in which an activation force applied to the actuator is amplified using a self-energizing device arranged between the actuator and brake lining is described. The device has a brake application unit for applying at least one brake lining to one side of a brake disc by carrying out an application movement of the brake lining relative to the brake disc, the application movement having at least a first movement component in a direction parallel to a rotational axis of the brake disc and a second movement component in a direction tangential to the rotational axis of the brake disc. The device also has at least one electromotive drive for activating the brake application unit.Type: GrantFiled: September 28, 2005Date of Patent: July 17, 2012Assignee: Knorr-Bremse Systeme fuer Nutzfahrzeuge GmbHInventors: Johann Baumgartner, Matthias Seidenschwang, Ernst Dieter Bieker, Luise Ulrike Bieker nee Rothe, legal representative, Dirk Ganzhorn
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Publication number: 20120168264Abstract: A friction brake including a brake part, a friction lining, a friction surface, and a pressing device, arranged on the brake part, that is structured and arranged to press the friction lining against the friction surface. A holding part is located on the pressing device so that the friction lining rests against the holding part. An actuating part is located on the pressing device and rotatably mounted on the brake part and an actuator is structured and arranged to pivot the actuating part. A pin is rotatably mounted in the holding part and being arranged on the actuating part, and a rotational axis of the pin is eccentrically arranged with respect to a rotational axis of the actuating part.Type: ApplicationFiled: May 10, 2010Publication date: July 5, 2012Applicant: VE VIENNA ENGINEERING FORSCHUNGS-UND ENTWICKLUNGS GMBHInventors: Michael Putz, Daniel Auer
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Patent number: 8210325Abstract: 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.Type: GrantFiled: July 21, 2009Date of Patent: July 3, 2012Assignee: Suzhou Torin Drive Equipment Co., Ltd.Inventors: Jianwen Cao, He Zhang, Wenna Fang, Yesheng Qu, Wei Zhou
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Publication number: 20120145491Abstract: An electromotive brake system may include a caliper housing, a first and second friction pads, a brake disk disposed in between, a pressurizing member connected to the second friction pad, a push rod with a push rod groove, an operating disk inserted in the push rod groove, first and second springs, a rotating ramp adapted to convert the rotational movement of a motor into a linear movement of a non-rotating ramp by means of a ball disposed between the rotating ramp and the non-rotating ramp. The electromotive brake system may further include first and second catching portions, a plurality of teeth and corresponding engaging protrusion of the teeth. The plurality of teeth and the protrusion may have slanted or curved surfaces.Type: ApplicationFiled: July 14, 2011Publication date: June 14, 2012Applicant: Hyundai Motor CompanyInventor: Dongyoon Hyun
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Patent number: 8177308Abstract: A system and method for establishing a running clearance position for an electromechanical actuator (28), wherein the running clearance is based on an actuator ram (34) position attained during a force application to a brake stack (30). In particular, a running clearance calibrator (66) determines a position value corresponding to a position of the force applicator when retraction from an application of force on the brake stack commences. The running clearance calibrator also generates a running clearance position as a function of the position value.Type: GrantFiled: November 15, 2006Date of Patent: May 15, 2012Assignee: Goodrich CorporationInventor: Mihai Ralea
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Patent number: 8177038Abstract: A thrust transmitting plate 14b on a cylinder hole bottom side portion of an adjuster nut 14, a drive side cam plate 12, and a cam spring 15 for biasing the thrust transmitting plate 14b toward the drive side cam plate 12 are accommodated in a generally cylindrical housing 16. Parts of the arc face of the circumferential wall of the housing 16 are deformed inwardly to form flat portions 16d. Engaging apertures 16e are formed in the flat portions 16d such that the engaging protrusions 14d are movable only in the cylinder axis direction when they are engaged. Portions of the circumferential wall of the housing 16 are protruded outwardly in convex shapes by presswork to form plural locking parts 16g arranged in the circumferential direction. The housing 16 is configured so as to be mounted in a cylinder hole 8 by latching those locking parts 16g to a circumferential groove 8f formed in the cylinder hole 8.Type: GrantFiled: July 18, 2008Date of Patent: May 15, 2012Assignees: Nissin Kogyo Co., Ltd., Honda Motor Co., Ltd.Inventors: Akifumi Watada, Takenori Tsuchiya, Kazuo Koyama, Yoshihisa Uchida, Akihiko Koike, Akihito Kon
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Patent number: 8136640Abstract: In a brake- and/or clamping arrangement for a shaft supported in a device housing and comprising a braking disc mounted on the shaft rigidly for rotation therewith and a clamping ring supported in the device housing, the braking disc has a friction area comprising two truncated cone-shaped friction surfaces with at least one brake cone arranged in the device housing and one arranged on an activating member. One brake cone abuts during braking or clamping the brake disc whereas the other brake cone abuts a clamping ring, which is disposed between contact areas of the brake cones, the clamping ring in contact with the brake disc and a brake cone being mounted to the apparatus housing.Type: GrantFiled: October 24, 2008Date of Patent: March 20, 2012Inventors: Günther Zimmer, Martin Zimmer
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Publication number: 20110278104Abstract: A disc brake device is configured to include friction pads facing the friction surface of a disc rotor, a caliper and a piston capable of pushing the friction pads against the friction surface of the disc rotor, and a mounting for supporting the caliper in a freely movable manner to a vehicle body side through a slide mechanism including a slide pin and a sleeve. A positioning mechanism capable of changing a relative position of the slide pin and the sleeve is arranged to appropriately change the position of the caliper according to the wear of the pad and ensure stable retract function.Type: ApplicationFiled: April 23, 2010Publication date: November 17, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi Isono, Michio Suzuki
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Patent number: 8037979Abstract: 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.Type: GrantFiled: December 14, 2004Date of Patent: October 18, 2011Assignee: Volvo Construction Equipment Holding Sweden ABInventors: Jonny Strandberg, Thomas Andersson
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Publication number: 20110203886Abstract: A method is provided for fixing an adjustment device on a disc brake, particularly a pneumatically actuated disc brake. The adjustment device is inserted in a previously adjusted idle position into an adjusting spindle of the disc brake, wherein a coupling of a shift fork of the adjustment device is carried out with a rotating lever of the disc brake, and a centering is carried out by a bearing disc of the adjustment device in a receptacle of a brake caliper. The adjustment device is positioned by twisting the same. The adjustment device is secured on the disc brake by locking the bearing disc on the brake caliper by a locking element.Type: ApplicationFiled: January 28, 2011Publication date: August 25, 2011Applicant: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbHInventors: Johann Iraschko, Georg Kempinger, Florian Orgler
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Publication number: 20110203883Abstract: A wear adjustor is provided for adjusting the wear of brake pads and a brake disc of a pneumatic disc brake having a brake application device actuated by a rotary lever. The wear adjustor is preferably inserted into an adjusting spindle of the brake application device. An axial bearing is formed axially on a side of a drive ring, and a ball ramp coupling with a freewheel function is formed axially on the opposite side of the drive ring. The ball ramp coupling has balls and a drive socket which is arranged axially, on the drive side, between the axial bearing and the balls thereof, a cone clutch being arranged between the clutch ring on the output side and an elastic sleeve for a cylinder spring. The cone clutch has the output-side clutch ring and a cone socket connected to the elastic sleeve, and clamping balls are arranged between the output-side clutch ring and the cone socket.Type: ApplicationFiled: January 28, 2011Publication date: August 25, 2011Applicant: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbHInventors: Johann IRASCHKO, Georg Kempinger, Florian Orgler
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Publication number: 20110203885Abstract: A wear adjustor is provided for adjusting the wear of brake pads and the brake disc of a pneumatically operated disc brake having a brake application device that can be actuated via a rotary lever. The wear adjustor is able to be inserted into an adjusting spindle of the brake application device. The wear adjustor includes a clutch ring for coupling to a spring sleeve that is in engagement with the adjusting spindle. A blocking device is disposed between the adjusting spindle and the wear adjustor. The blocking device forms a stop for the adjusting spindle in the tangential direction relative to the rotating direction.Type: ApplicationFiled: January 28, 2011Publication date: August 25, 2011Applicant: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbHInventors: Johann IRASCHKO, Georg Kempinger, Florian Orgler
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Publication number: 20110203884Abstract: A wear adjustor adjusts the wear of brake pads and a brake disc of a pneumatic disc brake having a rotary lever brake application device. The wear adjustor is insertable into an adjusting spindle and attached to a caliper of the disc brake by a bearing disc. An axial bearing is formed axially on a side of a drive ring, and a ball ramp coupling with a freewheel function is formed axially on the opposite side of the drive ring. The ball ramp coupling includes balls and a drive socket which is arranged axially, on the drive side, between the axial bearing and the balls thereof, a cone coupling being arranged between the coupling ring on the output side and an elastic sleeve for a cylinder spring. The output-side coupling ring is designed for a working rotational angle defined by at least one fixed abutment.Type: ApplicationFiled: January 28, 2011Publication date: August 25, 2011Applicant: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbHInventors: Johann IRASCHKO, Georg Kempinger, Florian Orgler
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Publication number: 20110155518Abstract: A wear adjustor adjusts the wear of brake pads and a brake disc of a pneumatic disc brake having a rotary-lever-actuated brake application device. The adjustor is insertable into an adjusting spindle and attached to a caliper of the disc brake by way of a mounting disc. An axial bearing is formed axially on one side of a drive ring and a ball ramp coupling with a freewheel function is formed axially on the opposite side of the drive ring. The ball ramp coupling has balls, has the drive ring arranged at the drive-input side axially between the axial bearing and the balls thereof, and has a drive-output-side clutch ring. A cone clutch is arranged between the drive-output-side clutch ring and a spring sleeve for a cylindrical spring. A torque-dependent coupling with positive restraint is arranged axially between the cone clutch and the spring sleeve.Type: ApplicationFiled: January 28, 2011Publication date: June 30, 2011Applicant: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbHInventor: Johann Iraschko
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Publication number: 20110139554Abstract: A brake device includes a brake pad movable toward a brake disc and configured to contact the brake disc, and an EWB device comprising a wedge and an actuator configured to push the wedge. The wedge is configured to push the brake pad when the actuator pushes the wedge. The device has a hydraulic cylinder comprising a piston coupled to and configured to push the EWB device. The wedge is configured to push the brake pad without operation of the actuator when the piston pushes the EWB device such that the brake pad can move toward the brake disc.Type: ApplicationFiled: September 16, 2010Publication date: June 16, 2011Applicant: HYUNDAI MOBIS CO., LTD.Inventor: Jongsung KIM
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Publication number: 20110120817Abstract: The invention relates to a brake assembly for a utility vehicle. After a braking operation a clearance between a control member (11) and the intermediate part (13) and/or between a brake element (12) and the intermediate part (13) is adjusted by means of a displacement unit (2) arranged in the intermediate part (13). Any change in wear and therefore any resulting change in clearance can be compensated for by means of a respective tensioning device (15, 15?), respectively located in the control member (11) and in the brake element (12), each of which are connected to the displacement unit (2).Type: ApplicationFiled: July 13, 2009Publication date: May 26, 2011Applicant: AGCO GMBHInventors: Johann Dobler, Sven Krieger, Hajo Pargmann, Hans-Peter Zeiler
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Patent number: 7926626Abstract: An adjusting device for adjusting the wear of the friction surface on the brake lining and brake disc of a pneumatic disc brake having a clamping device that is actuated by a rotary lever is provided. The device preferably can be inserted into a rotary spindle of the disc brake. An anti-friction body is positioned on both axial sides of a drive element, with the one bodies being a ramp coupling with a freewheeling function. The ramp coupling has coupling bushes and clamping balls, and the coupling bush on the driven side being supported on a spring sleeve. A conical seat is configured between the coupling bush and the sprung sleeve cooperates with the ramp coupling to preclude locking of the coupling bushes.Type: GrantFiled: February 1, 2007Date of Patent: April 19, 2011Assignee: KNORR-BREMSE Systeme fuer Nutzfahzeuge GmbHInventor: Johann Iraschko
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Publication number: 20110005871Abstract: A pneumatically actuated disc brake, includes a caliper, at least one brake application-side and one reaction-side brake lining, a brake disc, and a brake cylinder to which compressed air can be applied as a braking force generator. The brake cylinder acts on a brake application device for applying the brake lining, the brake application device having a rotary lever. At least the brake application-side brake lining can be moved both in a direction parallel to the brake disc rotation axis and parallel to the brake disc frictional surface, and a self-energizing device is provided which has a self-energizing factor that is selected such that the brake releases automatically after braking.Type: ApplicationFiled: July 16, 2010Publication date: January 13, 2011Applicant: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbHInventors: Aleksandar PERICEVIC, Johann BAUMGARTNER, Robert GRUBER, Robert TRIMPE, Walter SAUTER