Wheel Brake Operating Assembly Patents (Class 188/361)
  • Patent number: 10689905
    Abstract: A motorized window treatment system may include a roller tube, a covering material windingly attached to the roller tube, and a drive assembly that may be at least partially disposed within the roller tube. The drive assembly may include a motor having a drive shaft that is elongate along a longitudinal direction and a drive gear attached to the drive shaft such that a toothed portion of the drive gear is cantilevered with respect to the drive shaft. The drive assembly may include a gear assembly having a pair of intermediate gears on opposed sides of the drive gear. Rotation of the drive gear may be transferred through the pair of intermediate gears, a connecting gear, a planetary gear set, a cage, and an idler to the roller tube. Rotation of the roller tube may cause the covering material to move between an open position and a closed position.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: June 23, 2020
    Assignee: Lutron Technology Company LLC
    Inventors: David A. Kirby, Robert C. Newman, Jr.
  • Publication number: 20140345995
    Abstract: A blocking device for attaching to an entry aperture structure of a spring brake cylinder of a vehicle includes a blocking fastener having a head and a shaft extending from the head. The head has a plurality of cylindrical recesses that extend generally parallel to the shaft. At least a portion of the shaft is threaded. A fastener receiver has an insertion portion and a base extending generally transversely to the insertion portion. The insertion portion has an interior surface that is threaded and is configured to receive the shaft of the blocking fastener. The base has a first tier that extends generally radially from the insertion portion and has a diameter that corresponds to the diameter of the entry aperture structure such that the base engages the entry aperture structure radially. A fastener receiving component is disposed on the shaft.
    Type: Application
    Filed: May 24, 2013
    Publication date: November 27, 2014
    Applicant: International Truck Intellectual Property Company, LLC
    Inventor: International Truck Intellectual Property Company, LLC
  • Publication number: 20140238787
    Abstract: A first component, which is connected to a transmitting component that transmits a brake operation by a driver, is arranged to travel, in response to the brake operation, in a direction in which the transmitting component travels. A second component has a pressure portion to press a brake piston, which actuates friction components of a brake mechanism, in a direction different from the direction in which the transmitting component travels. The first component has an inclined surface. The second component has a contact portion, which comes into contact with the inclined surface, and is arranged such that the pressure portion turns about a fulcrum upon the traveling of the first component.
    Type: Application
    Filed: November 1, 2013
    Publication date: August 28, 2014
    Inventors: Masayuki ISIZUKA, Toshiya NAGUMO
  • Publication number: 20140041975
    Abstract: A parking brake actuator generates and applies a braking force to a vehicle wheel by converting a rotation movement of a screw member which is rotated by an electric parking brake driving device into a translatory movement and transmitting the converted translatory movement to a piston to push a brake pad to a disc by the piston. The electric parking brake driving device includes an electric motor and a reduction gear mechanism which transmits the driving force of the electric motor to the electric parking brake driving device. The reduction gear mechanism includes a pinion gear fixed to an output shaft of the electric motor, a first gear shaft rotatably supported on a first bearing member provided on a gear body and a first wheel gear formed on the first gear shaft and engaging the first wheel gear to thereby reduce the speed of driving force of the electric motor.
    Type: Application
    Filed: April 23, 2012
    Publication date: February 13, 2014
    Applicant: ADVICS CO., LTD.
    Inventors: Morimasa Takewaki, Yuichi Takeo, Kosuke Sakai, Masakazu Ozawa, Katsuhiko Takasu
  • Publication number: 20130327605
    Abstract: A brake may include a bellows having an opening that leads into the interior of the bellows, a brake element joined to the bellows, a rotational element arranged at a distance from the brake element, a fluid reservoir or a pressure production unit, and a first conduit between the fluid reservoir or the pressure production unit and the opening.
    Type: Application
    Filed: June 12, 2013
    Publication date: December 12, 2013
    Inventors: Georg Bachmaier, Gunter Freitag, Andreas Goedecke, Karl-Josef Kuhn
  • Publication number: 20130192936
    Abstract: Flexible sheathing for the protection of piston-cylinder units for disc brakes are provided. Such flexible sheathing may be arranged in a retracted condition wherein the piston is completely accommodated within the cylinder and in an extended condition wherein the piston is completely extracted from a caliper body defining the cylinder, said piston having a piston outer surface suitable to co-operate with a cylinder inner surface of the caliper body which accommodates the piston, said outer surface having a predefined piston diameter and said cylinder inner surface having a predefined cylinder diameter, wherein said piston comprises a piston body and a head thereof suitable to press against a pad of the disc brake.
    Type: Application
    Filed: July 5, 2011
    Publication date: August 1, 2013
    Inventors: Fabio Scotti, Antonio Gotti, Armando Puddu
  • Publication number: 20130146409
    Abstract: An article comprising: a heat transfer preventer, the heat transfer preventer comprising: a body portion and one or more convection plates, the one or more convection plates being connected to and extending from the body portion; wherein the body portion includes one or more unitary attachment devices extending therefrom for attachment to a piston, a brake pad, or both.
    Type: Application
    Filed: December 13, 2011
    Publication date: June 13, 2013
    Inventor: Brian Lewis Boyle
  • Publication number: 20130092488
    Abstract: A brake pad actuating device comprising: a piston including: a first pocket; an opposing second pocket; and an internal wall located in the piston separating the first pocket and the second pocket, wherein the volume of the first pocket to the volume of the second pocket form a ratio of less than about 20:1; and wherein the piston is adapted to be used as a brake piston.
    Type: Application
    Filed: December 4, 2012
    Publication date: April 18, 2013
    Inventor: Akebono Brake Corporation
  • Patent number: 8239112
    Abstract: A method for estimating a brake pressure, a longitudinal tire force and a tire-road ? during periods of antilock control that measures deceleration of a wheel during a period of constant brake pressure, reduces a brake pressure to cause slip on the wheel to begin reducing, measures reacceleration of the wheel after a point in time in which the change in brake pressure is completed, calculates a change in acceleration based on the measured reacceleration and the measured deceleration, estimates a change in brake pressure from a proportional relationship between the change in acceleration and a brake pressure value, estimates a brake pressure from the relationship between a time for valve activation during a change in acceleration and the change in brake pressure. The method also estimates a longitudinal tire force from a mathematical relationship between the change in acceleration, a tire radius, and the estimated brake pressure.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: August 7, 2012
    Assignee: Ford Global Technologies
    Inventor: John Patrick Joyce
  • Publication number: 20120193176
    Abstract: 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: Application
    Filed: January 31, 2011
    Publication date: August 2, 2012
    Inventor: Richard N. Knowles
  • Patent number: 8126626
    Abstract: A motor vehicle travel path control which monitors, during an autonomous braking event initiated by a collision preparation system the actual motor vehicle travel path in relation to the driver intended motor vehicle travel path, and in the event a departure from the driver intended motor vehicle path occurs, the motor vehicle travel path control adjusts braking so as to return the motor vehicle travel path to that intended by the driver.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: February 28, 2012
    Assignee: GM Global Technology Operations LLC
    Inventor: Chad T. Zagorski
  • Publication number: 20110272228
    Abstract: A brake system for a motor vehicle having an at least single-circuit brake cylinder with the aid of which a brake force may be applied to at least one wheel of the motor vehicle when actuated. The brake cylinder is mechanically operatively connected to a booster cylinder, which is decoupled from brake setpoint detector and is hydraulically triggerable for actuation of the brake cylinder corresponding to the driver's intent as detected with the aid of the brake setpoint detector. A motor vehicle having a brake system is also described.
    Type: Application
    Filed: October 16, 2009
    Publication date: November 10, 2011
    Inventors: Michael Kunz, Matthias Leiblein, Werner Quirant, Jens Kolarsky
  • Patent number: 8033533
    Abstract: An air spring actuated brake assembly for a railway vehicle braking system is provided which comprises an air spring disposed between a mounting member for attachment to the rigid structure of the braking system and a push rod attached thereto for longitudinal movement in an outward direction upon actuation thereof to initiate a braking sequence of the railway vehicle braking system. The air spring actuated brake assembly of the present invention allows for improved control of the brake shoe forces including visual travel measurement indication which is especially desirable during light load conditions. Additionally the air spring actuated brake assembly of the invention allows for the visual inspection and simple replacement of an inflatable spring should an air leak in the actuator occur. Currently used brake assemblies employing cylinder type actuators may be retrofitted with the air spring actuator of the invention.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: October 11, 2011
    Assignee: WABTEC Holding Corp.
    Inventors: Michael E. Ring, Gary L. Voong, Eric S. Graves, Frank E. Tinch
  • Publication number: 20100314206
    Abstract: A brake assembly (1) for motor vehicles and similar which comprises a rotating body (2) that is integral with a wheel of the vehicle such that it can rotate together with the same wheel around the wheel's axis of rotation (A), a support structure (3) firmly fixed to the structure of the vehicle that supports said wheel so as to be positioned close said rotating body (2), at least one brake pad (4) in a material with a high coefficient of friction that is mounted in a movable manner on said support structure (3) such that can make contact with the surface of said rotating body (2), and means of support and hydraulically operated movement (5) able to selectively push said pad against the surface of said rotating body (2). The brake assembly (1) also comprises at least one heat-insulating plate (6) inserted between said pad (4) and said means of support and hydraulically operated movement (5).
    Type: Application
    Filed: September 18, 2008
    Publication date: December 16, 2010
    Inventors: Moreno Quaggio, Alvise Fracasso
  • Publication number: 20090294233
    Abstract: A drive device for a hydraulic caliper brake assembly includes a housing having an open chamber and an elastomer sealingly mounted in the chamber for containing brake oil. The elastomer includes a skirt connected to an inner peripheral of the chamber, a projection adapted to a brake shoe, and a U-shaped portion positioned between the skirt and the projection for providing the displacement of the projection. A plate is disposed between the housing and the elastomer. A shoulder mounted on the plate is corresponded to an annular flange mounted on elastomer for retaining the elastomer. When hydraulic pressure is greater than the elastic force of the elastomer, the projection of the elastomer is pushed toward the brake shoe to achieve the braking purpose. On the contrary, the projection of the elastomer is restored to a free condition.
    Type: Application
    Filed: June 3, 2008
    Publication date: December 3, 2009
    Inventor: Wayne-Ian MOORE
  • Publication number: 20080251336
    Abstract: In a frame structure of a vehicle that includes a flywheel housing, an intermediate housing and a transmission case that are connected to each other along a longitudinal axis of the vehicle to constitute a vehicle frame, the intermediate housing has a hollow shape with a first end and a second end located along the longitudinal axis of the vehicle, the first end having an abutting surface against which the second end of the flywheel housing abuts, a support surface located radially inwardly of the abutting surface so as to support the forward/rearward movement switching unit, and an opening surrounded by the support surface, the opening serving as a first-end opening of the intermediate housing along the longitudinal axis of the vehicle. The abutting surface and the support surface along the longitudinal axis of the vehicle are located so that at least a portion of the forward/rearward movement switching unit is accommodated within the flywheel housing.
    Type: Application
    Filed: June 18, 2008
    Publication date: October 16, 2008
    Inventors: Kazuhiko Ohtsuki, Toshiyuki Hasegawa, Atsuo Yoshina
  • Patent number: 6874600
    Abstract: A cable control which can be mounted in a simple manner in an expanding lock of a braking device for a motor vehicle, a so-called cable slack of the cable end is required in the area of the expanding lock. For eliminating this cable slack again in a simple manner, a holding device is provided in the wheel carrier which comprises a sliding sleeve and of a fixing sleeve, between which locking devices are arranged, so that the cable slack can be eliminated when the sliding sleeve is slid in the fixing sleeve.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: April 5, 2005
    Assignee: Dr. Ing. h.c.F. Porsche AG
    Inventor: Edgar Grundke
  • Publication number: 20040112696
    Abstract: Brake-operating assembly for a machine including first and second brake pedals that are interconnected with one another. A first valve element is connected to the first brake pedal and arranged to control flow of hydraulic fluid from a pressure source to brake cylinders of the machine. A second valve element is connected to the second brake pedal and arranged to control flow of hydraulic fluid from the pressure source to the brake cylinders of the machine. The interconnection between the first and the second brake pedals is established utilizing at least one connecting line arranged between the first and the second valve element for hydraulic fluid.
    Type: Application
    Filed: August 26, 2003
    Publication date: June 17, 2004
    Inventors: Sven-Ake CARLSSON, Bo VIGHOLM
  • Publication number: 20030196859
    Abstract: To provide a brake cylinder unit wherein both the normal brake and the spring brake that is used as a parking brake, etc., can act, and in addition wherein it is possible to shorten the axial direction length. In a brake cylinder unit (1) wherein both the normal-service brake means (2) and the spring brake means (3) can act, there is provided a clutch means (4) that links the rod (111) and the second piston (21) when the pressure fluid ceases to act on the second action chamber (24) of the spring brake means (3), and the first piston (21) [sic] starts to move [typo in Japanese] towards to the rod (111). This clutch means (4) comprises a screw (31) that is provided on the rod (111), a nut member (32) that is provided on the second piston (21) such that it can rotate, and a stop means (33) that stops the rotation of the nut member (32) when the second piston (21) starts to move towards the rod (111).
    Type: Application
    Filed: April 18, 2002
    Publication date: October 23, 2003
    Inventor: Yoshio Asano
  • Patent number: 6416069
    Abstract: A lift assembly for an axle of the trailer of a semi-trailer or of another vehicle such as a straight truck, is mounted generally adjacent to and beneath each suspension beam of the axle/suspension systems of the trailer or other vehicle. The manner of mounting the lift assembly generally adjacent to and beneath the beam provides sufficient clearance for concurrent disposition of a dual service/parking brake chamber adjacent to and beneath the beam. The location and orientation of the axle lift assembly, relative to radial lines emanating from the pivot point of the suspension beam, facilitates the application of efficient lift forces to the beam by the lift assembly, which in turn results in less wear to an air chamber of the lift assembly. The air chamber of the lift assembly can be quickly and easily removed and reinstalled to allow for replacement of the dual brake chamber.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: July 9, 2002
    Assignee: The Boler Company
    Inventor: John E. Ramsey
  • Patent number: 6276500
    Abstract: A drum brake backplate assembly including a wheel cylinder (30) having a tubular body (31) having an axially extending bore (32) within which two brake shoe operating pistons (33) are in sealed sliding contact to define a working chamber (48) therebetween. The pistons are displaceable away from each other along the bore on pressurisation of the working chamber and the body located on an associated brake-backplate (44) by quick-attach means (46).
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: August 21, 2001
    Assignee: Automotive Products PLC
    Inventors: David Peasley, Clive Samuel Hadley
  • Patent number: 4907678
    Abstract: A cam actuated drum-type brake having an improved mounting arrangement for the power unit that actuates the brake. The actuator for the brake includes a camshaft rotatably journaled within a tube that is affixed to the backing plate and to which is affixed a mounting bracket that mounts the power unit. The mounting bracket has a mounting portion for the power unit and is disposed at an angle to the axis of rotation of the brake drum and also at an angle to a plane perpendicular to the axis of the drum. The arrangement is such that the mounting bracket may be moved without necessitating disassembly of the brake or removal of the brake drum.
    Type: Grant
    Filed: December 15, 1987
    Date of Patent: March 13, 1990
    Assignee: Lucas Industries Public Limited Company
    Inventor: John A. Urban
  • Patent number: 4895227
    Abstract: Braking unit for vehicle, of the type comprising an axial actuating helical spring maintained in release position, against its elastic reaction force, through a screw-nut system rotatively driven by an electric motor, the spring acting upon the brake through the intermediary of a hydraulic master cylinder of which the piston is axially connected to an abutment ring of the spring also mechanically connected, via a screw-nut system to the rotor of an electric motor, such an unit being applied to a spring braking system for a vehicle possibly with a built-in park brake.
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: January 23, 1990
    Assignees: Wabco Westinghouse Equipements Ferroviaires, Regie Autonome des Transports Prisiens "RATP"
    Inventors: Michel Grenier, Jean-Etienne De La Gorce, Daniel Cieplinski, Gerard Leturgie, Yvers Thurin, Laurent Meret, Christian Doireau
  • Patent number: 4809588
    Abstract: A piston and cylinder assembly for a vehicle hydraulic system has a retaining device comprising an insert acting between a piston and the cylinder bore in which it works, the insert having a releasable frictional engagement in the bore and acting as an abutment to hold the piston in its retracted position to maintain the effective length of the assembly at a predetermined value for installation, until the assembly is operated hydraulically. The assembly may be an actuator for a self-energizing disc brake, or a slave cylinder for a vehicle clutch system.
    Type: Grant
    Filed: December 29, 1987
    Date of Patent: March 7, 1989
    Assignee: Lucas Public Limited Company
    Inventors: Anthony G. Price, Roy Campbell
  • Patent number: 4781276
    Abstract: A hydraulically actuated wheel brake with a built-in control device comprising a brake piston including two pressure surfaces each of which defines a different one of two working chambers. The pressure fluid inlet is connected directly to one of the two working chambers and via a valve to the other of the two working chambers, the valve being actuatable upon attainment of a predetermined value of inlet pressure. The brake piston has a step in its outer periphery whose surface provides one of the two pressure surfaces. The piston is guided exclusively at its outer periphery in a cylindrical bore of a housing. Since only two parts are disposed concentrically in each other, there results ease of manufacture and a minor susceptibility to failure.
    Type: Grant
    Filed: August 18, 1983
    Date of Patent: November 1, 1988
    Assignee: International Standard Electric Corporation
    Inventors: Volker Berisch, Karl Keiner
  • Patent number: 4306639
    Abstract: A light weight metal caliper housing has cored holes in the cast bore. A nylon bore insert lines the bore side wall. A molded flex piston has hydraulic fittings incorporated as a part of it and the fittings extend through the cored holes. The center portion of the piston is shaped to permit piston flexibility for axial expansion and contraction. The forward end of the piston is closed by a thermal protector, the outer surface of which is engaged by the back of the brake shoe. A low rate extension spring within the piston returns the piston to the fully non-applied position. The spring has one end attached to a plate which resists movement within the free piston but is moved when sufficient brake lining wear occurs so that the extension force applied through the spring during brake apply overcomes the resistance of the movable plate to such movement, causing the movable plate to assume an adjusted position.
    Type: Grant
    Filed: June 13, 1980
    Date of Patent: December 22, 1981
    Assignee: General Motors Corporation
    Inventor: Clarence I. Mitchell
  • Patent number: 4227594
    Abstract: A brake assembly includes a backing plate, a pair of brake shoes slidably mounted on the backing plate, and a wheel cylinder supported on the backing plate between contiguous ends of the shoes. A retaining clip attaches the wheel cylinder to the backing plate. The retaining clip includes a base and a pair of opposed tabs extending from the base. One portion of each tab resiliently and releasably attaches the clip to the backing plate. Another portion of each tab projects into a recess in the wheel cylinder to resiliently and releasably retain the wheel cylinder in a mounted position on the backing plate. The clip and the wheel cylinder are capable of being attached to the backing plate from the same side of the backing plate.
    Type: Grant
    Filed: April 25, 1979
    Date of Patent: October 14, 1980
    Assignee: The Bendix Corporation
    Inventor: Michael A. Kluger
  • Patent number: 4174026
    Abstract: A drum brake assembly provides a pair of brake shoes which are movable by a hydraulic actuator to a braking position. The hydraulic actuator is carried by a backing plate and the pair of brake shoes is movable relative to the backing plate. A piston is slidably mounted within a bore on the hydraulic actuator and pressurized fluid communicated to the bore acts against the piston to move the piston and pair of brake shoes. A partition is also disposed within the bore to substantially define a secondary chamber which receives pressurized fluid from the bore. The partition is movably disposed within the bore and resiliently engaged with the piston so that increased pressure within the bore is transmitted to the piston via the partition and the resilient engagement. Moreover, the partition controls venting of the secondary chamber so that upon contact of the pair of brake shoes with a drum, backlash or retraction of the pair of brake shoes is limited.
    Type: Grant
    Filed: October 30, 1978
    Date of Patent: November 13, 1979
    Assignee: The Bendix Corporation
    Inventor: Donald D. Johannesen
  • Patent number: 4042080
    Abstract: A wheel cylinder piston made of powdered metal is provided with a through hole and a steel or powdered metal insert of hard metal received in and fills the hole. The hardened insert acts directly against a tang of the brake shoe, eliminating the need for reaction pins. The piston of the assembly is made in a die set having a through rod to define the hole, the piston green preform being sintered and sized before or after the insert is in place.
    Type: Grant
    Filed: May 19, 1976
    Date of Patent: August 16, 1977
    Assignee: General Motors Corporation
    Inventor: Richard P. Nelson