Antipodal, Relatively Separable Brake Elements Patents (Class 188/71.3)
  • Patent number: 9180842
    Abstract: A multi-plate disc brake has interleaved rotatable and non-rotatable brake discs (11) within a brake housing (13) and a ball and ramp type brake actuator (12) comprising first and second relatively rotatable annular actuator discs (20, 21) with actuator balls (22) therebetween located in circumferentially ramped pockets (20a, 21a) on opposing faces of the actuator discs. A wedge-shaped actuator member (23) has an actuating means (24A, 24B) to displace the actuator member between confronting abutments (20b, 21b) on the respective actuator discs to relatively rotate the discs to cause the balls to rise up the ramped pockets and hence expand the actuator axially to move the brake discs (11) into engagement. Cooling oil is supplied into the brake housing through the wedge-shaped actuator member (23) when the brake is engaged.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: November 10, 2015
    Assignee: AGCO International GmbH
    Inventors: Eduard Schnur, Klaus Bayer
  • Patent number: 9074641
    Abstract: The disclosure relates to a coupling assembly for connecting an optionally drivable secondary driveline to a permanently driven primary driveline, comprising a friction coupling and an axial setting device. The friction coupling has a first coupling part and a second coupling part which are rotatable around an axis of rotation A and which, by axial forces, can be coupled to one another for transmitting torque. The axial setting device is configured for actuating the friction coupling, wherein the axial setting device comprises a first ring which is at least indirectly axially supported relative to a fixed component and a second ring which is supported at least indirectly relative to the first ring and which, when at least one of the first and second rings; is rotated around the axis A, is axially displaceable, wherein, for rotating the at least one of the first and second rings there is provided a linear driving mechanism.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: July 7, 2015
    Assignee: GKN Driveline International GmbH
    Inventors: Adrian Chludek, Mark Schmidt, Andreas Baer
  • Publication number: 20150107942
    Abstract: A friction brake device has a brake rotor including a disk part and a subsidiary rotor spaced apart from each other along a rotation axis and a cylindrical part integrally connecting their outer peripheral portions, brake pads which are rotatably supported around an autorotation axis parallel to the rotation axis between the disk part and the subsidiary rotor by a stationary member, rotational torque transmission devices which mutually transmit rotational torques between the brake rotor and the brake pads, and pressing devices which are supported between the disk part and the subsidiary rotor by the stationary member and press the brake pads against the disk part and the subsidiary rotor.
    Type: Application
    Filed: April 7, 2012
    Publication date: April 23, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroshi Isono
  • Patent number: 8800726
    Abstract: A dual-rotor force transmitting assembly includes a powerhead assembly having a spring housing, a plurality of first spring sets that generate a braking force for a first rotor and a plurality of second spring sets that generate a braking force for a second rotor. Using separate spring sets for each rotor ensures application of uniform and equal pressure on both rotors even if there is uneven friction surface wear.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: August 12, 2014
    Assignee: Eaton Corporation
    Inventor: Nilesh Arun Achrekar
  • Patent number: 8490759
    Abstract: A drum brake (10) is provided which has a pair of brake pads (12), each pad being moveable generally radially outwardly into contact with a brake drum by a respective operating lever (14) which is acted on at one end by a brake applying means (15) and pivoted (16) at the other end from a backplate (11). Each pad is contacted by a portion (14c) of the respective operating lever intermediate the lever ends and is moved radially outwardly between a pair of circumferentially spaced abutments (45) which extend generally perpendicular to the backplate (11) and which react braking torque when the brake is applied. The required pad to drum clearance is established by knock-back of the drum on the pads (12).
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: July 23, 2013
    Assignee: Automotive Products Italia (SV) S.R.L.
    Inventors: Marco Monopoli, Ivan Cecchelli
  • Patent number: 7946396
    Abstract: A caliper for a fixed twin rotor disc brake includes a relatively fixed body, two yokes movable axially with respect to the body, formations defined on the yokes for receiving four brake pads for respective application to rotor sides, and an actuator adapted to urge the yokes relatively axially. One of the yokes is operable to urge two of the four brake pads in a first axial direction, the other of the yokes is operable to urge the other two of the four brake pads in a second, opposite axial direction. The four brake pads are positioned on a first side of the actuator in the first axial direction.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: May 24, 2011
    Assignee: Meritor Heavy Vehicle Braking Systems (UK) Limited
    Inventors: Paul Roberts, Paul Anthony Thomas, Alessandro Mortali, Shan Shih, Martin Roche, Corrado Conti, Clive Harrup, Marco Bassi, Paul Hadley, Roberto Conti, Jonathon Leslie Christopher Jackson, Gary Ganaway
  • Publication number: 20090133973
    Abstract: A parking brake apparatus includes a first braking member provided at a wheel and integrally rotated with the wheel, a second braking member provided at a vehicle body side for stopping a rotation of the first braking member, a parking brake device for pressing the second braking member to the first braking member by an operating force of a parking brake operation, a pressurizing device for pressurizing a brace fluid independently of the parking brake operation, and a hydraulic pressure controlling device for preliminarily pressing the second braking member to the first braking member by a brake fluid pressure pressurized by the pressurizing device in a case when the second braking member is pressed to the first braking member by means of the parking brake device.
    Type: Application
    Filed: November 21, 2008
    Publication date: May 28, 2009
    Inventor: Toshiya Shibata
  • Publication number: 20080135348
    Abstract: A brake caliper assembly includes opposing brake shoes positioned on substantially opposing inner surfaces of a dual-disk rotor, wherein said assembly comprises an internal actuator circumferentially arranged between radially inner and outer portions of the rotor, the actuator having an inner surface facing an inboard rotor inner surface and an outer surface facing an outboard rotor inner surface; a plurality of pistons integral to the actuator and displaceable therein by pressurized fluid supplied to the actuator; a first brake shoe mounted to the actuator inner surface and displaceable by the plurality of pistons to engage the inboard rotor inner surface; a pair of pins mounted on the actuator to slide for purposes of transferring a reactionary load; and a second brake shoe mounted to the actuator outer surface and driven by the reactionary load into the outboard rotor inner surface.
    Type: Application
    Filed: December 8, 2006
    Publication date: June 12, 2008
    Inventors: David B. Drennen, Ernest Ray Siler, Paul Rymoff
  • Patent number: 6945370
    Abstract: A hub support (12) by which a wheel-supporting hub (14) may be supported for rotation relative to an axis (22). The hub support (12) comprises a one-piece metal casting, the casting comprising mounting means (12b, 12c) by which the hub support (12) may be mounted on a vehicle, and support means for a hub (12a). The support (12) also forms part of or a mounting for operating means (26, 32) by which friction material pads (18) of a disc brake (15) are brought into force-applying engagement with one or more discs (16) mounted on the hub (14). Said one-piece metal casting also comprises a guide (28; 28a; 28b) on which at least one of said friction material pads (18) may be mounted for movement relative to the axis (22).
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: September 20, 2005
    Assignee: Delphi Technologies, Inc.
    Inventor: Kenneth James Bunker
  • Patent number: 6910555
    Abstract: A caliper body for a fixed-caliper disk brake which can be associated with a disk in a manner such that its distance from the disk is kept unchanged and which is unusually strong and capable of a silent braking action comprises a first half-body which can house first means for generating the braking force and which can be arranged facing a first braking surface of one side of the disk, and a second half-body which can house second means for generating the braking force and which can be arranged facing a second braking surface of an opposite side of the disk, the first and second half-bodies being connected, by fixing means, to bridge elements which can be arranged astride the disk; the bridge elements are portions of a single element for connecting and supporting the half-bodies.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: June 28, 2005
    Assignee: Freni Brembo S.p.A.
    Inventors: Alessandro Ciotti, Cristian Crippa
  • Patent number: 6827183
    Abstract: A skewed roller brake assembly (20) has a main axis of rotation (x—x), has a first plate (21) adapted to be rotated about the main axis, has a second plate (22) adapted to be rotated relative to the first plate about the main axis, and has an intermediate plate (23) positioned between the first and second plates. The first and second plates are adapted to be axially loaded with respect to one another. The intermediate plate has a plurality of slots (25). Each slot is bounded by a first wall (26) that is arranged at a first angle (&thgr;1) with respect to a radius from the main axis. A cylindrical roller (25) is arranged in each slot for rolling engagement with the first and second plates about the axis of the roller such that the roller axis (y—y) is parallel to the first wall when the first and second plates are rotated relative to one another in one angular direction.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: December 7, 2004
    Assignee: Moog Inc.
    Inventor: Eric A. Polcuch
  • Patent number: 6622833
    Abstract: The invention relates to a drum brake device (10), which is provided as a wheel brake for a motor vehicle. The invention proposes embodying the drum brake device (10) with a brake belt (14), which is disposed inside a brake drum (12) and can flex in the radial direction of the brake drum (12). Thrust exerted on one end (18) of the brake belt (14) with a simultaneous bracing of the other end (20) of the brake belt (14) causes the brake belt (14) to be pressed against the brake drum (12) from the inside and produces a braking moment. The invention has the advantage that a friction force exerted on the brake belt (14) by the brake drum (12) augments the thrust on the end (18) of the brake belt (14) and thus boosts the braking moment. Another advantage is that the brake belt (14) always rests uniformly against the brake drum (12) over its entire circumference, even, for example, when the brake drum (12) expands due to heating.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: September 23, 2003
    Assignee: Robert Bosch GmbH
    Inventors: Dietmar Baumann, Hanniel Schmidt, Herbert Vollert, Frieder Keller
  • Patent number: 6397980
    Abstract: An improved dry disc brake has its housing positioned radially inwardly of its rotating member. In this way, the interface between the pads and the rotor is sealed from the environment. Further, there are two braking surfaces on the rotating member at opposed ends of the housing. Since the braking heat is spread across two surfaces, the system is better able to take heat away from the braking operation. The use of external facing fins adds even more capacity to take heat away.
    Type: Grant
    Filed: August 17, 1999
    Date of Patent: June 4, 2002
    Assignee: Meritor Heavy Vehicle Systems, LLC
    Inventor: Michael E. Johnson
  • Publication number: 20020046910
    Abstract: A protective screen for a road vehicle brake disc includes at least one elastic holding organ (27; 30) intended to be compressed in an axial gap between a pivot support (11) and a bearing module (13), present after direct clamping of the bearing module (13) onto the pivot support (11).
    Type: Application
    Filed: October 18, 2001
    Publication date: April 25, 2002
    Inventor: Thierry Frouin
  • Patent number: 6311806
    Abstract: Disclosed is an improved piston construction for use in a braking system. The piston construction employs an insulator at its inner end and a conical aperture at it outer end. Both of these promote increased heat isolation during braking operations. The piston of the present invention also employs an o-ring which is secured within a cylindrical recess. The o-ring ensures a fluid tight seal between the piston and the piston housing. Through the use of the o-ring, air is prevented from entering the brake lines.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: November 6, 2001
    Assignee: Vette Brakes & Products, Inc.
    Inventors: Angelo Gonzalez, Roben Wilkie
  • Patent number: 6298953
    Abstract: A disc brake comprises an operating mechanism operable to move friction material pads into contact with a disc. The operating mechanism comprises a support body located on one side of the disc, a cylinder defined by the support body, and a piston in the cylinder. The operating mechanism also comprises a guidance member for the pads. The guidance member projects from the support body past the disc and supports an abutment on which one of said pads is mounted. The guidance member is mounted on the support body by means of a plurality of bolts which extend through bores in the guidance member to said abutment. The bolts take the load during application of the brake.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: October 9, 2001
    Assignee: Delphi Technologies, Inc.
    Inventor: Kenneth James Bunker