Patents Assigned to Akebono Brake Industry Co., Ltd.
  • Pin cap
    Patent number: 9068611
    Abstract: A pin cap comprising: (a) a central portion including one or more through holes; (b) one or more springing arms extending from the central portion; (c) one or more contact regions; and wherein the pin cap is configured to receive a pin from a brake system so that the one or more contact regions of the pin cap contact the pin and connect the pin cap to the pin, and the one or more through holes in the central portion assist the pin cap in expanding to receive a pin so that the central portion of the pin cap creates a gripping force on the pin; and wherein the one or more springing arms bias the pin so that the pin and pin cap are substantially centrally located within a pin bore of the brake system.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: June 30, 2015
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Brad Robert Lethorn, Scott Alan Dubay
  • PIN CAP
    Publication number: 20150122598
    Abstract: A pin cap comprising: (a) a central portion including one or more through holes; (b) one or more springing arms extending from the central portion; (c) one or more contact regions; and wherein the pin cap is configured to receive a pin from a brake system so that the one or more contact regions of the pin cap contact the pin and connect the pin cap to the pin, and the one or more through holes in the central portion assist the pin cap in expanding to receive a pin so that the central portion of the pin cap creates a gripping force on the pin; and wherein the one or more springing arms bias the pin so that the pin and pin cap are substantially centrally located within a pin bore of the brake system.
    Type: Application
    Filed: November 4, 2013
    Publication date: May 7, 2015
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Brad Robert Lethorn, Scott Alan Dubay
  • Pseudo rock and analysis system using the same
    Patent number: 8991260
    Abstract: A pseudo rock includes a housing, a strain sensor, a three-axis acceleration sensor, a vibration generator and a controller. The housing has an average shape and size of rocks. The strain sensor detects a stress acting in positive and negative directions of each axis with respect to three-dimensional coordinates using the center of the housing as the origin. The three-axis acceleration sensor detects acceleration acting in each axis of the three-dimensional coordinates. The vibration generator produces vibration in a specific direction with respect to the three-dimensional coordinates. The controller converts respective detected values of the strain sensor and the three-axis acceleration sensor into vibration pulses of specific patterns and outputting the vibration pulses to the vibration generator.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: March 31, 2015
    Assignee: Akebono Brake Industry Co., Ltd.
    Inventors: Takashi Kunimi, Shinichi Akutagawa
  • Apparatus and method of manufacturing brake lining
    Patent number: 8955652
    Abstract: A manufacturing apparatus 10 for manufacturing a brake lining 41 is provided with a support portion 33 for supporting a brake shoe 43, a compressing portion 20 for compressively bonding a strip-shaped brake lining 41 to a rim 43b by compressing a material and a mold portion 31, 32 including a mold frame 32 for shaping lateral surfaces of the brake lining 41 and a pressing member 31 for forming a frictional surface 41a of the brake lining 41 by pressing the material, so as to shape the brake lining 41. The mold frame 32 has a first molding surface 32a for shaping a first side plane 41b, a second molding surface 32b for shaping a second side plane 41c and a third molding surface 32c disposed at a boundary portion between the first molding surface 32a and the second molding surface 32b for continuously connecting the first molding surface 32a with the second molding surface 32b by a curved surface.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: February 17, 2015
    Assignee: Akebono Brake Industry Co., Ltd.
    Inventors: Hidetoshi Hishinuma, Takanori Omiya
  • PIN HOLE SHAPE IN A PRESSURE PLATE
    Publication number: 20150041259
    Abstract: A pressure plate comprising: one or more pin holes that include: (a) a leading end; (b) a trailing end; (c) a bottom connecting the leading end to the trailing end; (d) a dampening chamfer; and (e) a top extending between the leading end and the trailing end, and being connected directly to the leading end or the trailing end on one side and an opposing end of the top is connected to the leading end or the trailing end by the dampening chamfer; wherein the dampening chamfer is configured so that when the pressure plate is installed in a brake system and a pin extends through each of the one or more pin holes, movement of the pressure plate during non-braking conditions is redirected by the dampening chamfer.
    Type: Application
    Filed: December 23, 2013
    Publication date: February 12, 2015
    Applicant: Akebono Brake Industry Co., Ltd.
    Inventors: Ryohei Ishizuka, Kohei Noma
  • Disc brake apparatus with parking mechanism
    Patent number: 8936137
    Abstract: Some of the components of a parking brake mechanism are incorporated between an inner side case and an outer side case, the two case and are combined by engaging lock holes and lock claws, and an inner side auxiliary assembly is formed. In this state, the diameter of circumscribed circle of the lock claws is configured to be smaller. Then, when the inner side auxiliary assembly is incorporated in the cylindrical space, the two lock claws are engaged with a lock concave which is formed on the inner peripheral surface of the cylindrical space by making the two lock claws protrude greatly from the outer peripheral surface of the inner side case.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: January 20, 2015
    Assignee: Akebono Brake Industry Co., Ltd.
    Inventors: Kazuhiro Yoshikawa, Shinichi Yamadera
  • DISC BRAKE PAD ASSEMBLY
    Publication number: 20140360822
    Abstract: A disc brake pad assembly includes a pair of locking bent portions formed at circumferential end portions of an inner shim plate by being bent towards an opposite side to a pressure plate. Locking through holes are formed individually at base end portions of the locking bent portions. A pair of locking projecting pieces are individually formed so as to project circumferentially from an outer main body portion included in an outer shim plate. A distance between distal edges of the locking projecting pieces is larger than a space between the locking bent portions, and a circumferential length defined between radial side portions of the locking projecting pieces is shorter than the space. The inner main body portion and the outer main body portion are superposed on each other in a state that the locking projecting pieces are brought into engagement with the locking through holes.
    Type: Application
    Filed: September 13, 2012
    Publication date: December 11, 2014
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Daisuke Kobayashi, Yoshihiro Hirata
  • FRICTION MATERIAL
    Publication number: 20140342899
    Abstract: A friction material contains: at least one kind of a titanate compound having a shape having a plurality of convex portions; and a bio-soluble inorganic fiber. In the titanate compound, a three-dimensional shape of a particle thereof has a plurality of convex portions.
    Type: Application
    Filed: September 13, 2012
    Publication date: November 20, 2014
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Eri Itami, Hiroshi Yamamoto, Takayuki Watanabe, Katsuji Seki
  • DISC BRAKE PAD ASSEMBLY
    Publication number: 20140339028
    Abstract: A disc brake pad assembly includes a pad and a shim plate. The shim plate includes locking pieces which are bent from a main body portion towards a pressure plate. The locking pieces are brought into abutment with circumferential edge portions of the pressure plate so as to be displaced in a rotating direction of a rotor. Projecting portions are formed at portions of the circumferential edge portion which are brought into abutment with one surface of each of the locking pieces. A circumferential central portion of a part of each of the projecting portions which faces the one surface projects further than both circumferential end portions thereof. The circumferential edge portion and the one surface of each of the locking pieces are spaced apart from each other at portions of the one surface which lie close to both circumferential end portions thereof.
    Type: Application
    Filed: September 13, 2012
    Publication date: November 20, 2014
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Daisuke Kobayashi, Yoshihiro Hirata
  • Floating disc brake, method of assembling same, and assemblies consisting of pad clips and return springs
    Patent number: 8869950
    Abstract: Disclosed is a structure such that when pad clips are to be mounted, it is possible to handle return springs and the pad clips as integral articles, thereby facilitating mounting work. Constraining sections are provided at both axial ends of each of the pad clips. Furthermore, the return springs are composed of inner spring elements and outer spring elements. These two types of spring elements are helical torsion springs provided with helical sections. Abutting sections are provided on the spring elements, respectively. The abutting sections are pressed against the inner surfaces of the constraining sections by elastic restoring forces. Moreover, the central axes of the coil sections are substantially oriented in the rotational direction of the rotor.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: October 28, 2014
    Assignee: Akebono Brake Industry Co., Ltd.
    Inventors: Toshifumi Maehara, Daisuke Kobayashi
  • Disc brake apparatus
    Patent number: 8857576
    Abstract: A disc brake apparatus includes a boot including a fitting part. A slide pin is fixed to one of a support and a caliper and is slidably mounted to a guide hole formed in the other. Convex parts extending in a sliding direction of the slide pin are circumferentially arranged on an inner periphery of the fitting part. Concave recesses are respectively formed between the neighboring convex parts. Each of the convex parts is formed with at least one a low-height portion and a high-height portion in an axial direction of a rotor, respectively. Positions of the low-height portion and the high-height portion in a circumferential direction of the rotor are respectively different between the adjacent convex parts. The high-height portion has a height so as to contact the slide pin, and the low-height portion has a height so as not to contact the slide pin.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: October 14, 2014
    Assignee: Akebono Brake Industry Co., Ltd.
    Inventors: Daisuke Kobayashi, Yoshihiro Hirata, Yasuaki Ogawa
  • ACCELERATION SENSOR CIRCUIT
    Publication number: 20140230551
    Abstract: An acceleration sensor circuit 1 of the invention includes an acceleration sensor 11 having a first capacitor C1 whose capacitance changes according to a position of a first movable electrode and a second capacitor C2 whose capacitance changes as opposed to the first capacitor according to a position of a second movable electrode moved together with the first movable electrode, a first circuit 15A for generating a sinusoidal AC signal of a predetermined frequency, a second circuit 12 for generating a signal according to the positions of the movable electrodes, and an arithmetic circuit 14 for analyzing data in which a signal generated by the second circuit 12 is encoded and outputting data of acceleration.
    Type: Application
    Filed: September 28, 2012
    Publication date: August 21, 2014
    Applicants: AKEBONO BRAKE INDUSTRY CO., LTD., JAPAN OIL, GAS AND METALS NATIONAL CORPORATION
    Inventors: Takashi Kunimi, Toru Sekine
  • Seal groove with a projection
    Patent number: 8794396
    Abstract: A caliper comprising: a piston bore and a seal groove located in the piston bore proximate to an open end of the piston bore, the seal groove comprising: a front wall; a rear wall; a bottom wall spanning between and connecting the front wall to the rear wall; a projection in a central region of the bottom wall suitable for allowing twisting of a seal during a brake retract and/or brake release; wherein the rear wall diverges away from the front wall as the rear wall extends away from the bottom wall and towards the bore surface.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: August 5, 2014
    Assignee: Akebono Brake Industry Co., Ltd.
    Inventor: Galus Chelaidite
  • DISC BRAKE CALIPER
    Publication number: 20140158483
    Abstract: A disc brake caliper includes an outer body, an inner body, and joining parts connecting the inner body and the outer body with each other at both end portions in a circumferential direction of a rotor so as to form an opening part. An inward end edge of both end edges in the circumferential direction of at least one of the joining parts, which defines an end part of the opening part in the circumferential direction, is inclined relative to an axial direction of the rotor towards a central part in the circumferential direction of the outer body from the inner body side to the outer body side, so that a length of the opening part in the circumferential direction is shortened from the inner body side to the outer body side.
    Type: Application
    Filed: November 26, 2013
    Publication date: June 12, 2014
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Yosuke MIYAHARA, Kenichi SHIMAMURA
  • Electric brake device
    Patent number: 8714316
    Abstract: An electric brake device includes a brake pad, an axial force sensor and a controller. The brake pad is pressed against a rotation face of a brake rotor in a direction perpendicular to the rotation face. The axial force sensor detects a pressure of the brake pad. The controller performs a speed reduction control which is an operation target, based on at least one of the pressure of the brake pad and a reduced speed obtained from a wheel speed sensor.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: May 6, 2014
    Assignee: Akebono Brake Industry Co., Ltd.
    Inventor: Hidekazu Hori
  • FRICTION MATERIAL AND METHOD FOR PRODUCING FRICTION MATERIAL
    Publication number: 20140117583
    Abstract: To provide a highly heat-resistant brake pad adaptable to high temperatures/high loads and producible only by adding a baking step to the same production process as that for an organic friction material. A friction material comprising a fibrous material, a friction modifier, a binder and an inorganic material, wherein a silicon-containing polymer is blended as a binder and after thermoforming, the polymer is heat-treated in an oxidizing atmosphere at a temperature of 160 to 350° C. for 1 to 10 hours to cause crosslinking with oxygen and then, subjected to a baking treatment. As the silicon-containing polymer, one compound or two or more compounds are preferably selected from the group consisting of polycarbosilane, polyorganoborosilazane, polyborosiloxane, polycarbosilazane, and perhydropolysilazane.
    Type: Application
    Filed: January 3, 2014
    Publication date: May 1, 2014
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Yuki TAKAHASHI, Shou KURIHARA
  • VEHICULAR DISC BRAKE ROTOR AND MANUFACTURING METHOD OF VEHICULAR DISC BRAKE ROTOR
    Publication number: 20140060983
    Abstract: A vehicular disc brake rotor is provided with a cast-iron base, a nitrogen diffusion layer formed on the cast-iron base, a nitrogen compound layer formed on the nitrogen diffusion layer, and an iron oxide layer including Fe3O4 and formed on the nitrogen compound layer. In a burnish and a first re-burnish of a “Passenger car-Braking device-Dynamometer test procedures” (which is based on JASO C 406:2000), a change ratio of a frictional coefficient between the burnish and the first re-burnish is 10% or less.
    Type: Application
    Filed: August 29, 2013
    Publication date: March 6, 2014
    Applicant: Akebono Brake Industry Co., Ltd
    Inventors: Yoshiyuki SUGAI, Katsuji SEKI, Takuya TAKADA
  • Bleeder plug
    Patent number: 8656965
    Abstract: A bleeder plug is provided with a bleeder body having a nipple portion and a threaded portion and being provided with a through hole extending from the nipple portion-side end to the threaded portion-side end; a seat pin having a press fitting portion to be press-fitted in an opening of the through hole at the threaded portion-side in the bleeder body and a seat portion blocking a bleeder hole, and a groove formed in a contact surface between the bleeder body and the seat pin and communicating the opening of the through hole at the nipple portion-side with an outside space via the contact surface.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: February 25, 2014
    Assignee: Akebono Brake Industry Co., Ltd.
    Inventor: Yukio Iwata
  • ELECTRIC BRAKE WITH PARKING MECHANISM
    Publication number: 20140000992
    Abstract: An electric brake with a parking mechanism includes a parking lock device. A rotating side engaging surface of the parking lock device is formed with rotating side engaging projections at a plurality of places in a circumference direction of the rotating side engaging surface. One side surfaces in the circumference direction of the rotating side engaging projections are inclined edges which are inclined relative to a direction a restraining side engaging member of the parking lock device is displaced. The inclined edges are inclined in such a direction that a range in which the inclined edges and distal ends of the restraining side engaging member engage with each other is increased as the inclined edges go forward in a direction the restraining side engaging member moves based on an elastic force of an elastic member of the parking lock device.
    Type: Application
    Filed: March 16, 2012
    Publication date: January 2, 2014
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Akiyuki Tajima, Hiroshi Ikegami
  • Disk brake device
    Patent number: 8573370
    Abstract: A cam housing assembly oscillates in association with rotation of an eccentric cam which is attached to a camshaft and is allowed to press a clutch by cam pins of the cam housing assembly. A pair of piston assemblies are provided of which each includes a piston which can slide within a sleeve, a spindle and a nut which screws on to the spindle and are supported in hole portions in a caliper body so as to oscillate therein, whereby a brake pad is pressed against by a plug after the spindle, the nut and the piston are sequentially pressed by pressing a clutch by the cam pins. Since the spindle and the nut are screwed on to each other through a reversible screw, a gap is adjusted automatically as the pad wears.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: November 5, 2013
    Assignee: Akebono Brake Industry Co., Ltd.
    Inventor: Toshifumi Maehara