With Means For Actuating Brake Element Patents (Class 188/72.1)
  • Patent number: 9187068
    Abstract: A method applying an electric park brake system of a vehicle includes detecting a park request with a first vehicle control module, and sending a park command, from the first vehicle control module, to both an electric brake control module and a second vehicle control module. Upon the electric brake control module receiving the park command, an actuation signal is sent from the electric brake control module to a motor winding of the electric park brake system. A status actuated signal is sent from the electric brake control module to the second vehicle control module. The status actuated signal indicates that the actuation signal has been sent from the electric brake control module. A position of the motor winding is sensed to determine if the motor winding is actuated. When the motor winding is actuated, a message is displayed to indicate that the electric park brake system is applied.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: November 17, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Mark A. Vernacchia, Padma Sundaram, Orson S. Wang
  • Patent number: 9145940
    Abstract: An electric brake system is proposed which includes an electric linear motion actuator and can generate the required braking force with high accuracy. A load sensor (30) is provided in a motion converting mechanism of the actuator which converts the rotary motion of a rotary shaft (4) to which the rotation of an electric motor (2) is transmitted to linear motion of an outer ring member (5) as an output member. The load sensor (30) detects the pushing force with which the outer ring member (5) linearly drives a driven member. With this arrangement, if the driven member is a braking member of an electric brake system, it is possible to directly detect the braking force applied by the driven member and thus to accurately generate the required braking force.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: September 29, 2015
    Assignee: NTN Corporation
    Inventors: Makoto Muramatsu, Tatsuya Yamasaki, Masaaki Eguchi, Tomomi Goto
  • Patent number: 9145934
    Abstract: Disclosed are a decelerator configured so that a planet gear type first deceleration unit is provided inside a cycloid type second deceleration unit to provide eccentric rotational force to the second deceleration unit and a motor brake with the same. In the decelerator, the increase in axial thickness of a motor is restrained, and a deceleration ratio is effectively increased. In the motor brake with the decelerator, the deceleration ratio of the motor is increased, and the increase in total length of the motor brake is restrained by the decelerator, thereby improving space utilization.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: September 29, 2015
    Assignee: MANDO CORPORATION
    Inventors: Jin Seok Kim, Chang Bok Ko
  • Patent number: 9121455
    Abstract: A clutch management system has a ramp actuator, an inner plate housing, an outer plate housing, and a clutch assembly. The clutch assembly may have a motor, a ratio adaptor, a primary sun gear, a secondary sun gear, a primary planet carrier and a secondary planet carrier. The primary sun gear is in contact with the ratio adaptor and primary planet gears. The primary planet gears are in contact with a ring gear. The primary planet carrier forms part of the ramp actuator. The second sun gear is connected to a housing and a secondary planet gears. The secondary planet gears are also in contact with the ring gear. A secondary planet carrier is connected to the ramp actuator and the outer plate housing.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: September 1, 2015
    Assignee: Dana Automotive Systems Group, LLC
    Inventor: Kenneth E. Cooper
  • Patent number: 9097302
    Abstract: A brake actuating apparatus includes a caliper body with a cylinder. An electric motor is fixed to the caliper body. A piston is installed in the cylinder. A plug and a rotational shaft are installed in the cylinder to be rotated by the motor. A head is attached to the rotational shaft and the plug defines a fluid-receiving space. The rotation of head varies the volume of a fluid contained in the fluid-receiving space, thereby moving the piston.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: August 4, 2015
    Assignee: Wheel Corporation
    Inventor: Han-Yong Cho
  • Publication number: 20150144438
    Abstract: Provided is an electro-mechanical brake with a differential gear which includes a driving unit that generates a rotational force by a power that is selectively applied along with the operation of the brake pedal, a differential gear unit that is connected to the driving unit through a gear and in which a first shaft and a second shaft that are disposed in a straight line, an external braking unit that is connected to the first shaft of the differential gear unit through a gear, and an internal braking unit that is connected to the second shaft of the differential gear unit through a gear.
    Type: Application
    Filed: March 10, 2014
    Publication date: May 28, 2015
    Applicant: Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Tae Sang Park, Dong Hwan Shin, Sung Ho Jin, Jeon Il Moon
  • Publication number: 20150136536
    Abstract: An actuator-driven brake having a multi-pad, may include a torque member, a spindle that may be operated by a driving force from an actuator, a disc pressing assembly that may be pivotally coupled to the torque member and includes an outside lever and an inside lever, wherein each one end of the outside lever and the inside lever may be connected to the spindle and wherein the outside lever and the inside lever simultaneously press both sides of a brake disc by coming closer to each other when the spindle rotates, and a brake pad assembly that includes an outside pad attached to an inner side of the outside lever and an inside pad attached to an inner side of the inside lever.
    Type: Application
    Filed: May 16, 2014
    Publication date: May 21, 2015
    Applicant: Hyundai Motor Company
    Inventors: Jong Yun Jeong, Dong Yoon Hyun
  • Patent number: 9033117
    Abstract: A motor for actuating brake members of an electric parking (EPB) system, includes a stator and a rotor rotatably mounted to the stator. The rotor has a shaft, a commutator, a rotor core fixed to the shaft, and rotor windings wound about teeth of the rotor core and electrically connected to segments of the commutator. The rotor windings have a plurality of winding units and each of the winding units have at least two coils. The coils of each winding unit are wound about the same teeth and are connected to a same pair of segments.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: May 19, 2015
    Assignee: Johnson Electric S.A.
    Inventors: Hang Cheong Ma, Hing Shing Chung, Hai Ning Liao
  • Publication number: 20150129371
    Abstract: A brake system comprising: (a) a body assembly comprising: (i) an outboard side, (ii) an inboard side, (iii) a bridge extending between and connecting the inboard side and the outboard side, and (iv) two or more piston assemblies located entirely on the outboard side, entirely on the inboard side, or located both on the inboard side and the outboard side; and (b) an electric brake assembly comprising: (i) one or more differential assemblies in communication with the body assembly and each of the two or more piston assemblies; wherein the one or more differential assemblies provide power equally to each of the two or more piston assemblies so that each of the piston assemblies are moved axially in unison until a resistance of one of the two or more piston assemblies becomes higher than a remainder of the two or more piston assemblies and the one or more differential assemblies transfer power from the piston assembly with the higher resistance to the remainder of piston assemblies with a lower resistance so tha
    Type: Application
    Filed: October 31, 2014
    Publication date: May 14, 2015
    Inventors: Kenneth Eric Gutelius, Galus Chelaidite
  • Publication number: 20150129382
    Abstract: A friction brake device includes a brake rotor which has a main rotor and a sub-rotor which are spaced apart from each other along a rotation axis and extend around the rotation axis over the entire circumference, and a cylindrical part integrally connecting their outer peripheral portions of the main rotor and the sub-rotor, first and second friction members which are supported between the main rotor and the sub-rotor by a stationary member so as to relatively displace along the rotation axis and extend annularly around the rotation axis, and pressing devices which press the first and second friction members against the main rotor and the sub-rotor, respectively.
    Type: Application
    Filed: April 19, 2013
    Publication date: May 14, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroshi Isono
  • Patent number: 9022179
    Abstract: A rotary lever disc brake actuating mechanism and a method for operating the rotary lever disc brake mechanism is provided. The mechanism includes a rotary lever which rotates a pinion to further rotate brake pad application racks. The racks are arranged to rotate toward an inboard brake pad to advance the brake pad toward a brake disc. The racks may further cooperate with lateral pins fixed to an outboard portion of the brake such that the outboard portion simultaneously advances an outboard brake pad toward the brake disc when the racks rotate. The brake mechanism may be assembled into a cartridge to be placed within an inboard portion of a brake caliper. The brake caliper may be located on a caliper mount via adjustment pins, whereby during new brake pad installation the caliper is self-centered by application of the brake, followed by securing the caliper to the adjustment pins.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: May 5, 2015
    Assignee: Bendix Spicer Foundation Brake LLC
    Inventors: Ronald S. Plantan, Dennis A. Wolf
  • Publication number: 20150101894
    Abstract: Provided is a brake apparatus for an electric corner module (ECM) including: a housing; a shaft, of which both ends are accommodated in accommodation portions of the housing; a planet gear connected to the shafts; and a driving unit that transmits power to the shaft, moves the planet gear in an axial direction and induces friction between the housing and the planet gear. That is, in a brake apparatus for an ECM, a planet gear is moved in an axial direction using a driving unit so as to induce friction between a housing and the planet gear and thus confinement forces of the planet gear are generated so that a brake function can be implemented by blocking power transmission using a decelerator and the weight of a wheel can be reduced and the size of a power transmission system can be reduced and optimization of packaging can be implemented.
    Type: Application
    Filed: June 18, 2014
    Publication date: April 16, 2015
    Inventor: Seung Young PARK
  • Publication number: 20150101893
    Abstract: A disc brake includes a brake caliper, in which two brake pads can be pressed against a brake disc when in operation. A brake pad on the action side is actuatable via a brake plunger of a brake application device. The brake plunger is led through an opening of a closure cover that closes a receiving chamber of the brake caliper. A bellows rests against the brake plunger and, on the other side, against the closure cover to seal the receiving chamber. A secondary seal is retained on the closure cover, which secondary seal is arranged concentrically to the bellows and rests against the brake plunger. The secondary seal is configured to rest slidingly against the brake plunger.
    Type: Application
    Filed: December 18, 2014
    Publication date: April 16, 2015
    Inventors: Jose CAMILO-MARTINEZ, Wolfgang PRITZ, Martin MACK
  • Publication number: 20150096847
    Abstract: A rotary lever disc brake actuating mechanism and a method for operating the rotary lever disc brake mechanism is provided. The mechanism includes a rotary lever which rotates a pinion to further rotate brake pad application racks. The racks are arranged to rotate toward an inboard brake pad to advance the brake pad toward a brake disc. The racks may further cooperate with lateral pins fixed to an outboard portion of the brake such that the outboard portion simultaneously advances an outboard brake pad toward the brake disc when the racks rotate. The brake mechanism may be assembled into a cartridge to be placed within an inboard portion of a brake caliper. The brake caliper may be located on a caliper mount via adjustment pins, whereby during new brake pad installation the caliper is self-centered by application of the brake, followed by securing the caliper to the adjustment pins.
    Type: Application
    Filed: October 7, 2013
    Publication date: April 9, 2015
    Applicant: Bendix Spicer Foundation Brake LLC
    Inventors: Ronald S. PLANTAN, Dennis A. WOLF
  • Publication number: 20150090540
    Abstract: There is provided an electric braking device for a vehicle, which includes a brake caliper which is provided to a wheel, a pressing member which is provided to the brake caliper and is driven to press a friction member to a rotary member fixed to the wheel, an electric motor which is a power source to drive the pressing member, an electric power/signal line which supplies electric power to the electric motor or allows a first electric circuit provided in a vehicle body to communicate with a second electric circuit provided in the brake caliper, and a connector which relays the electric power line. The connector includes a terminal joining portion which joins one terminal and another terminal to each other, and the one terminal and the another terminal are made of metal. The terminal joining portion is positioned inside the brake caliper.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 2, 2015
    Applicants: YAZAKI CORPORATION, ADVICS CO., LTD.
    Inventors: Tomonori KATSUYAMA, Shinichiro YUKOKU, Satoshi HIRATA, Motoshi SUZUKI, Kenichi IKEYA, Takamichi KUDO
  • Patent number: 8985284
    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.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: March 24, 2015
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Takahiro Ito, Kenichiro Matsubara, Hirotaka Oikawa
  • Patent number: 8985283
    Abstract: A vehicle brake apparatus capable of preventing abnormal vibration due to thickness variations in a disc rotor includes a motor drive unit configured to control the motor which presses the brake pad against the disc rotor, a brake pressure detection unit for detecting a braking pressure for pressing the brake pad, and a wheel speed sensor for detecting a rotation speed of the disc rotor. If an amount of variation in the detection values detected by the brake pressure detection unit during one rotation of the disc rotor exceeds a variation amount determination threshold value and a detection value variation frequency has a correlation with the rotation speed of the disc rotor and the detection value variation frequency exceeds a variation frequency determination threshold value, the motor drive unit controls the motor in inverted phase to the variation in the detection values.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: March 24, 2015
    Assignees: Advics Co., Ltd., Toyoto Jidosha Kabushiki Kaisha
    Inventors: Yusuke Oshio, Takahisa Yokoyama, Akira Sakai, Naoki Yabusaki, Shinsuke Yamamoto
  • Patent number: 8955650
    Abstract: A brake actuator has a motor that provides input rotation in first and second directions. A reducer couples to the motor and reduces the input rotation into an output rotation to be applied to a brake screw of a progressive cavity pump drive. A sensor measures rotational speed of the drive shaft. In manual operation, an operator can view an indication of the rotational speed and can manually operate the motor accordingly to control rotation of the shaft. In automated operation, a controller automatically controls the motor based on the rotational speed measured by the sensor. The controller can also use a torque sensor to detect the torque applied to the brake screw, a displacement sensor to detect displacement of the brake screw, and/or a current sensor to detect the current consumption of the motor.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: February 17, 2015
    Assignee: Weatherford Industria E Comercio Ltda
    Inventors: Jorge Robles Villa, Eduardo Perdomini Lara
  • Publication number: 20150027820
    Abstract: The present invention is directed to an electromechanical brake device for securing the structural reliability and improving the stability even when overloading.
    Type: Application
    Filed: June 19, 2014
    Publication date: January 29, 2015
    Inventors: Seung Young Park, Hyun Ku
  • Patent number: 8939265
    Abstract: A disc brake comprising a floating stirrup and a brake piston controlled via a motion conversion cartridge (200) comprising a rear part pressed against the bottom (114) of the housing (113) in the stirrup (100) and a control shaft (220) passing through the bottom. The front part (260) of the cartridge is pressed against the brake piston. It comprises a piston (270) provided with a plate cooperating with the plate of the control shaft (220) with the interposition of balls cooperating with tracks in the form of ramps to transform the relative rotational motion of one plate relative to the other into a translational motion of the piston (270). The cartridge (200) is held in place in its housing (113) by a cage (290) elastically attached to the wall (117, 118) of the housing (113).
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: January 27, 2015
    Assignee: Chassis Brakes International B.V.
    Inventors: Jan Vinck, Fabien Chaigneau, William Gosse
  • Patent number: 8915335
    Abstract: The electrical braking device according to the present invention includes a braking element (2) which is formed, on the one hand, by electric jaws (7) and at least one sliding block (8) mounted in the proximity of the brake disk (3) in such a way that the latter passes at least partially through the electric jaws (7) and sliding block (8), and, on the other hand, by means (4) for fastening the electric jaws (7) and the sliding block (8) to the fixed frame (6) while providing the jaws and block with degrees of freedom obtained by the combination of different connections of the “flat plane contact” (FC), “point contact” (PC) and “annular linear contact” (AC) types, in order to compensate for the misalignments and defects in the shape of the brake disk (3) when the latter is driven in rotation.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: December 23, 2014
    Assignee: Sofineco
    Inventors: Anne-Sophie Panseri, Armand Poyet, Romain Simon
  • Patent number: 8910754
    Abstract: A floating-disk type brake system that includes floating disk assemblies placed respectively in spaces between a rotating member, such as a wheel of a transportation machine or a rotating shaft of a machine tool, and a stationary member to reduce differences in the rotating speed of adjacent sliding surfaces of the floating disk assemblies in frictional sliding engagement. The floating-disk type brake system includes a first floating disk assembly and a first disk assembly that are arranged between the ring gear and the planet carrier of a planetary gear built in a transmission or the like, and the first floating disk assembly and the first disk assembly are pressed together into frictional engagement to brake a rotating shaft.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: December 16, 2014
    Assignee: Homma Science Corporation
    Inventors: Akira Homma, Masao Kobayashi
  • Publication number: 20140345982
    Abstract: A caliper brake apparatus includes a caliper main body that is supported on a vehicle body, a brake lining that advances/retreats relative to the caliper main body and can apply a frictional force by slidingly contacting a disc, a guide plate that supports the brake lining, an anchor pin that supports the guide plate on the caliper main body such that it can freely advance/retreat, a piston that advances/retreats relative to the caliper main body and can press against the brake lining via the guide plate, a diaphragm that abuts a rear surface of the piston and defines a pressure chamber within the caliper main body and elastically deforms due to pressure of compressed air within the pressure chamber so as to move the piston, and a piston plate that supports the piston on the anchor pin such that the piston can freely slide.
    Type: Application
    Filed: November 29, 2012
    Publication date: November 27, 2014
    Inventors: Tsutomu Suzuki, Yoshiyuki Ookawara
  • Patent number: 8864244
    Abstract: The invention relates to a hydraulic brake system comprising a master brake cylinder the at least one working chamber of which is connected to the wheel brakes of the vehicle via at least one hydraulic line, the brake piston of at least one wheel brake being adjustable by a negative pressure in the hydraulic lines to produce a brake clearance.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: October 21, 2014
    Assignee: Ipgate AG
    Inventors: Heinz Leiber, Valentin Unterfrauner
  • Patent number: 8851242
    Abstract: An electromechanical brake includes a pair of pad plates provided with a friction pad to apply pressure to a disc, a carrier to support the pad plates, a caliper housing supported movably back and forth on the carrier to apply pressure to the pad plates; and a presser to apply pressure to the pad plates. The presser includes a pressing member to apply pressure to one of the pad plates, a driving motor to operate the pressing member, a gear assembly disposed between the driving motor and the pressing member to transfer rotational force of the driving motor to the pressing member. The gear assembly includes an input shaft connected to a motor, an external gear coupled to the input shaft such that the external gear eccentrically rotates, and a stationary internal gear and a rotational internal gear meshed with the external gear such that the external gear revolves, while rotating. The rotational internal gear includes an output shaft in the center thereof and the output shaft is connected to the pressing member.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: October 7, 2014
    Assignee: Mando Corporation
    Inventor: Jin Seok Kim
  • Patent number: 8839917
    Abstract: An object is to stably exhibit a two-stage spring characteristic of a plate spring for restraining the generation of a clonk noise in a disc brake apparatus for use in a vehicle. A plate spring 90 for restraining the generation of a clonk noise has a fixture portion 91 having a shape resembling the squarish letter U and elastically fixed to a back plate 61, and an extension portion 92 extending continuously from the fixture portion 91. The extension portion 92 includes an engagement subportion 92a engaged with a support member at all times; a curved subportion 92b located between the engagement subportion 92a and the fixture portion 91; and a contact-engagement subportion 92c located between the curved subportion 92b and the fixture portion 91.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: September 23, 2014
    Assignee: Advics Co., Ltd.
    Inventors: Takahiro Ito, Takao Iida
  • Publication number: 20140262634
    Abstract: An electric linear motion actuator is provided which can set the clearance during normal braking operation of an electric brake system. The linear motion actuator includes a load sensor for detecting the magnitude of the load with which a friction pad is pressed against the brake disk, a temperature sensor for compensating for the influence of temperature on the load sensor, and an electronic control unit. The electronic control unit is adapted to calculate a target rotational angle from the position of the electric motor corresponding to the magnitude of the load detected by the load sensor to the position of the electric motor where the clearance is at a predetermined value, and control the electric motor to rotate the electric motor by the target rotational angle.
    Type: Application
    Filed: October 23, 2012
    Publication date: September 18, 2014
    Applicant: NTN Corporation
    Inventors: Tatsuya Yamasaki, Yui Masuda, Makoto Muramatsu, Masaaki Eguchi, Yuki Saoyama
  • Publication number: 20140262633
    Abstract: A braking system for safely collecting brake dust produced by operation of a braking mechanism. The braking system comprises a collector apparatus coupled with a braking mechanism. The collector apparatus is able to include a shroud that surrounds the braking mechanism and a catch element coupled with the shroud for collecting brake dust exiting the shroud. As a result, when coupled with the braking mechanism, the collector apparatus is able to ensure that most or all brake dust, such as copper or other particles from the braking mechanism that break off from the breaking mechanism during operation of the braking mechanism, are removed from the braking mechanism and collected by the filter/catch of the collector mechanism.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Inventors: Alex E. Kunzler, Peter C. Kunzler, Gary R. McLuen, Daniel R. Baker
  • Patent number: 8833526
    Abstract: An electric brake apparatus compares an estimated thrust force corresponding to a predetermined rotational position of an electric motor, which is calculated from an electric current/thrust force conversion function, with a reference thrust force based on a rotational position/thrust force table indicating a relationship between the rotational position of the electric motor and a thrust force of a piston to correct and update the electric current/thrust force conversion function, thereby maintaining a predetermined control accuracy despite wear of a brake pad and other changes over time.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: September 16, 2014
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Daisuke Goto, Hirotaka Oikawa, Takuya Usui
  • Patent number: 8827052
    Abstract: Disclosed herein are a decelerator in which a first deceleration unit of a planet gear type is provided inside a second deceleration unit of a cycloid type so as to apply eccentric rotation force to the second deceleration unit, and a motor brake with the same. The decelerator restricts an increase in the axial thickness of a motor and achieves an effectively increased deceleration ratio, and the motor brake equipped with the decelerator restricts an increase of the overall length thereof due to the decelerator, achieving enhanced space utility.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: September 9, 2014
    Assignee: Mando Corporation
    Inventors: Sung Wook Yu, Chang Bok Ko
  • Patent number: 8827053
    Abstract: The present invention relates to a self-amplifying electromechanical partial lining disc brake, having a ramp mechanism as a self-amplification device. According to the invention, a rack for driving a friction brake pad is situated between roller elements of the ramp mechanism, particularly at a geometrical centroid of an imaginary surface defined by the roller elements. As a result a load is distributed to the roller elements in a more uniform fashion and the pressing force of the friction brake pad against a brake disc when the partial lining disc brake is actuated is distributed more uniformly and counteracts irregular pad wear.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: September 9, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Chi-Thuan Cao, Dietmar Baumann, Dirk Hofmann, Herbert Vollert, Willi Nagel, Andreas Henke, Bertram Foitzik, Bernd Goetzelmann, Hans Frick
  • Patent number: 8827055
    Abstract: An emergency braking system for a machine tool for the abrupt braking of a rotating shaft, including at least one brake drum and at least one brake shoe which are brought into engagement with each other in order to brake the shaft, the brake drum engaging with the brake shoe under the influence of a centrifugal force resulting from the rotation of a shaft. The present system is configured in such a way that at least one resetting device is provided which makes it possible to reset the brake shoes in the direction of their original position after braking has taken place.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: September 9, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Thomas Winkler
  • Patent number: 8827051
    Abstract: An actuator has planetary rollers disposed between a rotor shaft of an electric motor and an outer ring member fixed around the rotor shaft. The planetary rollers are rotated about the axis of the rotor shaft and about their own axes, thereby converting rotary motion of the rotor shaft to linear motion of the planetary rollers A helical groove is formed in the radially outer surface of each planetary roller in which a helical rib formed on the radially inner surface of the outer ring member is received. The helical groove has a pitch equal to that of the helical rib and a lead angle different from that of the helical rib. The amount of the linear motion of the planetary rollers relative to the amount of the rotary motion of the rotor shaft is determined by the difference in lead angle between the helical groove and the helical rib.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: September 9, 2014
    Assignee: NTN Corporation
    Inventor: Tatsuya Yamasaki
  • Patent number: 8794394
    Abstract: A brake assembly and system (202) characterized by the use of a flexible force transfer member (230) to enable an electric motor (220) to be mounted remotely from other brake components and preferably at a location shielded from the elements and/or more easily accessible for maintenance and repair. By mounting the electric motor (220) in a less confining area, and using a force distribution device (350) to distribute force to a plurality of rams (342,344), one larger motor (220) may be used to drive multiple disk engagement members rather than several smaller motors mounted on the brake assembly. Since larger motors are typically more efficient than smaller motors, using one larger motor increases the overall efficiency of the brake.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: August 5, 2014
    Assignee: Goodrich Corporation
    Inventors: Michael J. Ortman, Steven Anderson, Eric Schwaigert
  • Patent number: 8794395
    Abstract: In an electric linear motion actuator, it is proposed to uniformly distribute external thrust loads to respective planetary rollers while the planetary rollers are revolving around a rotary shaft while rotating about their respective axes with a helical rib of an outer ring member in engagement with circumferential grooves of the respective planetary rollers. The planetary rollers have bearing support surfaces on which thrust bearings are supported, respectively. The distance from the bearing support surface of each planetary roller to a predetermined reference position of each circumferential groove (6a) of the planetary roller is different from the corresponding distances for the other planetary rollers, whereby with the planetary rollers supported by the respective thrust bearings, the axial position of each circumferential groove coincides with the axial position of the portion of the helical rib of the outer ring member that is engaged in the circumferential groove.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: August 5, 2014
    Assignee: NTN Corporation
    Inventors: Tatsuya Yamasaki, Masaaki Eguchi
  • Publication number: 20140209419
    Abstract: A disc brake for a commercial vehicle includes a brake caliper which takes the form of a sliding caliper and straddles a brake disc. In the caliper, brake pads are arranged on an actuation side and a reaction side, which pads can be pressed against both sides of the brake disc by an actuation device during braking The reaction-side brake pad is supported on a rear-side wall of the brake caliper by a pad carrier plate carrying a friction pad, and a gap is formed in a non-operational position in a region facing an assembly opening of the brake caliper between the rear-side wall of the brake caliper and the reaction-side brake pad. The gap is wider than the adjacent region and the length of the gap corresponds at least to the length of the contact surface of the reaction-side wall on the pad carrier plate when braking is applied. The disc brake is disposed such that the gap is formed by at least one recess in the pad carrier plate.
    Type: Application
    Filed: March 27, 2014
    Publication date: July 31, 2014
    Applicant: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
    Inventor: Manfred SCHOENAUER
  • Publication number: 20140209420
    Abstract: The invention relates to a disc brake, in particular for utility vehicles, comprising a brake lining that comprises a first protrusion located eccentrically in the thickness direction, a tensioning unit for pressing the brake lining against a brake disc, a pressure plate, via which the tensioning unit presses the brake lining against the brake disc when braking, and a first retainer spring for retaining the brake lining, which retainer spring comprises an opening for accommodating the first protrusion, wherein a projection on the retainer spring extends in the mounted state over the brake lining on one side in the axial direction of the brake disc.
    Type: Application
    Filed: September 27, 2012
    Publication date: July 31, 2014
    Inventors: Hellmut Jaeger, Denny Moeller
  • Publication number: 20140206265
    Abstract: A power tool braking device of a portable power tool includes at least one braking unit that is configured to brake a spindle of the portable power tool and/or a machining tool in at least one braking position of the braking unit. The power tool braking device further includes at least one spindle fixing unit that is configured to fix the spindle in at least one fixing position of the spindle fixing unit. The braking unit and the spindle fixing unit are at least partially configured as a single piece.
    Type: Application
    Filed: January 20, 2014
    Publication date: July 24, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Joerg Maute, Florian Esenwein
  • Patent number: 8783421
    Abstract: A brake device for an elevator system includes a brake disk adapted to interact with a brake rotor concentrically disposed on an extension of a traction sheave. A traction sheave adapted to be concentrically disposed on a shaft of an elevator system driving apparatus includes a main body including an integrally formed extension adapted to interact with a brake device.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: July 22, 2014
    Assignee: Thyssenkrupp Aufzugswerke GmbH
    Inventors: Jochen Mueller, Juergen Herkommer, Guenter Scholz, Dieter Held
  • Patent number: 8783422
    Abstract: A system for a drive for actuating a parking brake operably involves a brake caliper. The brake caliper has at least one brake piston with a brake piston axis, the piston being actuatable by means of an operably actuating lever with a rotational center. An electric motor is fixed to the brake caliper and mechanically coupled to the actuating lever with the output shaft that exits the electric motor.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: July 22, 2014
    Assignee: IMS Gear GmbH
    Inventor: Wolfram-Heinrich Hofschulte
  • Patent number: 8776958
    Abstract: A brake apparatus for restraining rotation of a wheel of a vehicle by application of a brake that is to be activated for causing a friction member, to be pressed against a brake rotor, through a piston that is movable in an axial direction of the piston. The brake apparatus includes: (a) a power drive device; (b) a driven member that is to be moved, by the power drive device, relative to the piston in the axial direction; and (c) an engaging portion that is provided in one of the driven member and the piston, such that the piston is held in engagement with the driven member through the engaging portion. The engaging portion is disposed such that, during release of the application of the brake, the piston is movable rearwardly while being held in engagement with the driven member through the engaging portion.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: July 15, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Takahiro Shiraki
  • Patent number: 8776957
    Abstract: A brake retractor assembly (10) for a vehicle, such as an agricultural vehicle, includes a brake housing (12) and a brake cover (14) defining a friction chamber (16). A brake piston (18) is arranged within the friction chamber (16) and coupled to the brake cover (14) by a bolt (44) including a first end (46) coupled to the brake cover (14) and a second end (48) coupled to the brake piston (18). A portion of the second end (48) passes through the brake piston (18) via a bore (64) defined in the brake piston (18) and is fixedly retained to the brake piston (18). An actuation system (24) is coupled to apply an axial force to the brake piston (18). Activation of the actuation system (24) results in axial movement of the brake piston (18) in a first direction (80). Deactivation of the actuation system (24) results in axial movement of the brake piston in a second direction (82). Axial movement of the brake piston (18) in the second direction (82) is limited by the fixed retention of the bolt to the brake piston.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: July 15, 2014
    Assignee: Deere & Company
    Inventor: Richard N. Knowles
  • Patent number: 8763767
    Abstract: In a method for controlling an electronic parking brake system and an electronic parking brake system, a travel-optimized method is used to achieve the released state of the parking brake system. When the parking brake is applied, travel-force values are detected and a plausibility check is run, the values being used to arrive at a first optimized position when the brake is released. If the residual force applied to the brake exceeds a threshold value, the parking brake is released even more until the value remains just under the threshold value or until a maximum defined release travel is achieved.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: July 1, 2014
    Assignee: Continental Automotive GmbH
    Inventors: Stefan Goss, Alexander Kalbeck, Armin Sauer
  • Publication number: 20140158479
    Abstract: An electric brake system includes a linear motion mechanism for converting the rotation of a rotary shaft to a linear motion of an outer ring member, and configured such that the friction pad is pressed against the brake disk by the outer ring member. The brake system further includes a reaction force receiving member adapted to receive an axially rearward reaction force generated when the friction pad is moved axially forwardly and pressed against the brake disk, and a stationary member provided axially rearward of the reaction force receiving member. A magnetic pole row is mounted to the reaction force receiving member, while the magnetic sensor is mounted to the stationary member.
    Type: Application
    Filed: July 9, 2012
    Publication date: June 12, 2014
    Inventors: Toru Takahashi, Yui Masuda
  • Publication number: 20140147280
    Abstract: The invention relates to a safety brake (12) for stopping a rotating device (38) in response to overheating. For this purpose, the safety brake (12) encompasses an expansion element (40), which, in the event of a heat-up, presses a first brake element (44) against a second brake element (48). After cool-down of the expansion element (40), the latter automatically releases the safety brake (12) again.
    Type: Application
    Filed: June 26, 2012
    Publication date: May 29, 2014
    Inventor: Ulrich Kowatsch
  • Patent number: 8733512
    Abstract: Disclosed is an electric disc brake capable of reducing noise and vibration while expanding the life span of the product. The electric disc brake includes a caliper housing to press friction pads provided at both sides of a disc against the disc, a cylinder installed in the caliper housing, a piston moving back and forth in the cylinder to press the friction pads, a driving device generating driving force with respect to the piston, and a volume compensation part communicated with the cylinder to compensate for an increment of a volume of the cylinder according to movement of the piston.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: May 27, 2014
    Assignee: Mando Corporation
    Inventor: Jin Seok Kim
  • Patent number: 8733513
    Abstract: Provided is a disk brake in which a rotation control part for controlling relative rotation of a cartridge and a cylinder of a parking brake mechanism is formed at the cartridge and includes convex parts having curved surfaces and concave parts formed at the cylinder and having curved surfaces, and a spacer formed of stainless steel, resiliently fitted into an inner circumference of the cylinder and including arc part having the same shape as the concave parts is disposed between the convex parts and the concave parts.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: May 27, 2014
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Katsuhiro Takahashi, Shigoru Hayashi, Yorihito Miura
  • Publication number: 20140116815
    Abstract: A disc brake device includes: a disc rotor rotating around a rotational axial line; a friction pad facing a friction surface of the disc rotor; a caliper capable of pressing the friction pad to the friction surface of the disc rotor; a mounting provided with the caliper; and a caliper slide mechanism supporting the caliper on the mounting in a manner enabling slide movement via a slide pin inserted in a guide section provided in a hole section of the caliper or the mounting, in which the caliper slide mechanism has a variable mechanism making a permissible swing angle of the slide pin with respect to a slide movement direction variable in response to a braking action along with slide movement of the caliper. Accordingly, the disc brake device and the caliper slide mechanism can provide an effect of reducing noises.
    Type: Application
    Filed: June 7, 2011
    Publication date: May 1, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroshi Isono
  • Publication number: 20140116814
    Abstract: The invention relates to an electromechanical braking method for an aircraft having at least one electromechanical brake 2 fitted to at least one braked wheel 1 of the aircraft, the brake 2 having friction members 3 and a plurality of electromechanical actuators 4, each actuator 4 comprising a pusher 5 suitable for being moved by means of an electric motor 6 to selectively apply a pressing force on the friction members 3. According to the invention, for a given braking operation, a total braking force to be applied against the friction members 3 of the brake is distributed in non-uniform manner amongst the actuators 4 of the brake, such that at least two actuators 4 apply respective different forces.
    Type: Application
    Filed: October 24, 2013
    Publication date: May 1, 2014
    Applicant: Messier-Bugatti-Dowty
    Inventors: Marion LAUR, Thomas LEPAGE, Jean-Frederic DIEBOLD, Philippe CHICO
  • Patent number: 8708110
    Abstract: The invention relates to a brake device for braking a moving brake body (2) by means of pressing a brake element (3, 4) onto the brake body (2), wherein a conversion device (7) is provided for converting a rotational movement of a brake drive shaft (9) into a translational movement of the brake element (4) in the direction of the brake body (2), wherein a rotary percussion mechanism (8) is connected between the brake drive shaft (9) and the conversion device (7).
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: April 29, 2014
    Assignee: S.B. Patent Holdings ApS
    Inventor: Erik Skjaerbaek