Brake-thrust Distributors Patents (Class 188/217)
  • Patent number: 10494087
    Abstract: A torque tube for a brake assembly, the torque tube includes a first tube segment, a second tube segment coupled to the first tube segment at a concatenation location, and a foot portion extending radially from the concatenation location, wherein said torque tube undergoes a change of thickness resulting in said first tube segment having a first thickness different than a second thickness of said second tube segment.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: December 3, 2019
    Inventor: Phillip E. Cooley
  • Patent number: 9435391
    Abstract: A disc brake for a commercial vehicle includes a brake caliper, which surrounds a brake disc and which is retained on a stationary brake carrier by way of guide bushings. The guide bushings are fastened to the brake carrier by screws and are arranged parallel to and at a distance from each other and form plain bearings. The brake caliper is retained in such a way that the brake caliper can be moved in a brake-application direction. The disc brake is designed in such a way that each guide bushing is wedged together with the associated screw.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: September 6, 2016
    Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
    Inventor: Alfred Loew
  • 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: 6955246
    Abstract: A slack adjustment system for a disk brake includes a biasing member to adjust slack in a brake system. The biasing member operates independently of pressure applied to a brake actuator. A locking device secures the adjustment mechanism in place when adjustment is not necessary. Release of the locking member allows the biasing member to adjust the resting position of brake pads independent of driver applied brake pressure.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: October 18, 2005
    Assignee: ArvinMeritor Technology, LLC
    Inventors: Mark Anthony Norman, Martin Taylor
  • Patent number: 5934418
    Abstract: A brake lining for partial-lining disk brakes, particularly of rail vehicles, wherein several friction or lining elements are provided which can be fastened to a support plate individually or in groups, in which case several support plates are arranged either directly on the lining holder of the disk brake arrangement or on a lining support which can be fastened to the lining holder. For rendering the surface pressure generated during the braking uniform, the support plates are swivellably linked to the lining support or lining holder, in the case of a group-like assignment, several (at least two) lining elements being swivellably arranged on the support plate.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: August 10, 1999
    Assignee: Knorr-Bremse System Fur Schienenfahrzeuge GmbH
    Inventor: Xaver Wirth
  • Patent number: 5924527
    Abstract: A tread brake unit for applying a brake block (3) against the tread of a rail vehicle wheel comprises a pneumatic cylinder (1) having a piston (9) with a piston rod (11). A block holder (2) for the brake block is pivotably connected to the piston rod by a pivot sleeve (19) rotatably attached in the end of the piston rod facing the block holder, which is provided with a circular surface (25) for engagement with the pivot sleeve, a structure (20, 22, 23) being provided for keeping the block holder connected to the pivot sleeve.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: July 20, 1999
    Assignee: Sab Wabco AB
    Inventors: Fred Emilsson, Per Walter
  • Patent number: 5553689
    Abstract: The invention relates to a floating metal structure (11) usable in most aircraft brakes. This structure aims at better distributing the pressure applied by the jacks, actuators or cylinders (7). The structure (11) is a ring with a U-shaped section having a flat base (13) and into which are freely introduced the jacks (7) which, also ensure the centering thereof. In a first solution, the contact of said structure takes place directly between the base (13) of the U and the first disk. In a second solution, contact takes place by means of a number of support shims or blocks (18) which is equal to the total number of active and inactive jacks (7) and arranged in staggered manner with respect thereto. These shims (18) remaining effective on alternating the active and inactive jacks (7), so that they act as if the number of jacks was doubled. Moreover, the structure (11) helps to thermally protect the jacks.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: September 10, 1996
    Inventor: Jean-Louis Chareire
  • Patent number: 5277280
    Abstract: Brake force is transmitted between a single axially movable push rod (6) and a brake block holder (3) by an intermediate force transmission member (22) to accommodate for movements along the wheel axis. This intermediate member (22) has cylindrical surfaces cooperating with both the block holder and the push rod end. The cylindrical surface (22') of the member (22), which cooperates with the brake block holder portion (21), is arcuate with its circle center coinciding with the center for the cylindrical push rod end (6'). A shackle (24) held on the brake block holder is biassed by springs (28) forward toward a brake application direction to retain and frictionally engage protrusions (23) extending from the actuator push rod (6).
    Type: Grant
    Filed: March 9, 1992
    Date of Patent: January 11, 1994
    Assignee: Sab Wabco AB
    Inventor: Anders O. G. Stjarne
  • Patent number: 5205382
    Abstract: An aircraft multiple disc and brake assembly having an axle with a cylindrical wheel member journaled thereon. The inner peripheral portion of the wheel member has a plurality of circumferentially spaced splines to support axially spaced rotor discs which are interleaved with stator discs which are splined to axially extending ribs mounted on a torque tube which in turn is connected to the axle. A piston support member is secured to the axle via a hub member and has a plurality of circumferentially spaced cylinders with a piston slidably mounted therein. One end of each piston cooperates with the receiving cylinder to define a piston chamber that permits pressurization to actuate the braking action. The other end of the piston has a pair of discs with mating spherical contoured surfaces to permit a tilting therebetween to eliminate side loading and provide even wear.
    Type: Grant
    Filed: March 5, 1992
    Date of Patent: April 27, 1993
    Assignee: The B. F. Goodrich Company
    Inventor: Frank D. Edmisten
  • Patent number: 5125687
    Abstract: There is provided a rollerboard for road-skiing using a pair of poles and having a board body with two footholds on the both sides of the longitudinal axis thereof. A front roller assembly and a rear roller assembly is supported by and disposed under the board body. The front roller is horizontally journaled by a front roller bracket vertically pivoted on a plate secured on the board body with a horizontal distance between the shaft of the front roller and the pivot of the front rollerbracket, and the rear roller assembly includes a rear roller journaled by a rear rollerbracket mounted on the board body under the region of the footholds. In addition, a brake means is provided including at least a brake shoe bracket, whose one end is hingedly mounted at the rear end region of said board body and the other end is secured with a brake shoe facing the ground, and at least a spring means interposed between each said shoe bracket and said board body respectively to provide braking tolerance.
    Type: Grant
    Filed: February 27, 1991
    Date of Patent: June 30, 1992
    Inventor: Sun-ik Hwang
  • Patent number: 5099967
    Abstract: A drum brake assembly has brake shoes 2 and 3 within a rotatable drum 1. The shoes 2 and 3 are displaceable to effect braking by an hydraulic ram 7 and free ends 9 of the shoes react against an abutment 10. This reaction is effected through a layer of viscoelastic damping material and metal plate laminate 110 which may be carried by either the brake shoes or the abutment 10. The viscoelastic layer may be bonded between steel plates and secured by a spring clip to either the brake shoe or the abutment 10. Alternatively the viscoelastic layer may be bonded to the abutment 10. The laminate 110 can be accommodated within a recess in the abutment 10. The provision of the viscoelastic layers through which the brake shoes react on the abutment 10 alleviates the development of noise or squeal during use of the brake assembly.
    Type: Grant
    Filed: July 7, 1989
    Date of Patent: March 31, 1992
    Assignee: BBA Group Plc.
    Inventor: Allan M. Lang
  • Patent number: 5035305
    Abstract: A cushioned brake assembly for dampening the reaction forces between rotating and non-rotating components of the brake assembly during a breaking action, includes a plurality of alternating rotatable and non-rotatable discs, a fluid actuated piston, a spring element, and a cushion disc positioned between the piston and the discs. The cushion disc includes a resilient portion which is compressed during a braking action to dampen the reaction forces. Prior art clutch and brake assemblies utilize various types of spring elements to dampen reaction forces between rotating and non-rotating components during clutching and braking. These prior art dampening elements do not provide optimum damping functions. The subject cushioned brake assembly provides optimum spring rate characteristics during cushioned braking function.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: July 30, 1991
    Assignee: Caterpillar Inc.
    Inventor: Bryan G. Lammers
  • Patent number: 4986394
    Abstract: A brake actuator has a body containing a pair of brake-applying members which may be actuated hydraulically to separate the friction elements of a brake into engagement with a rotatable braking surface. The members are interconnected by a mechanism in the form of a shaft of which respective end portions are provided with reversible threaded portions of opposite hand which engage corresponding threads within the members, the shaft being constrained against axial movement between bearings. Any excess movement of one of the members relative to the other is transmitted to that other member such as to cause an opposite and proportional force on the other member to substantially equalize the wear rates on the friction elements.
    Type: Grant
    Filed: June 8, 1990
    Date of Patent: January 22, 1991
    Assignee: Lucas Industries
    Inventors: Philip A. Taft, Michael D. Knight
  • Patent number: 4887697
    Abstract: A wedge and roller brake actuator comprises a wedge disposed between opposed tappets with interposed rollers acting to transmit thrust from the wedge to the tappets for brake actuation, a fixed inclined surface engaged by one roller to restrain the wedge for linear movement, and to ensure that one of the tappets normally associated, in use, with the brake trailing shoe, applies its associated shoe in advance of the other tappet, either the roller-engaging surfaces of the wedge and opposed tappet at either side of the wedge are inclined at different angles to the wedge longitudinal axis, or respective adjusters of the tappets are provided with different clearances between threadedly interengaged components thereof so that one tappet is adjusted to maintain its associated shoe nearer to the drum than the shoe associated with other tappet.
    Type: Grant
    Filed: September 25, 1987
    Date of Patent: December 19, 1989
    Assignee: Lucas Industries Public Limited Company
    Inventor: Sigmar Micke
  • Patent number: 4856620
    Abstract: A spot-type disc brake comprises a brake support member and a brake caliper guided via pins mounted in the brake support member. The brake caliper pressurizes the brake shoes arranged on either side of a brake disc by virtue of a brake piston on a bore. The brake shoe lying opposite to the piston is supported on the end face in the brake caliper, while the other brake shoe bears against the end face in the brake support member. To prevent inclined positioning of the brake caliper which results in tapered wear at the brake shoes, the retaining arm arranged in the brake disc's direction of rotation at the brake disc exit is dimensioned such in cross-section that its deformation in the circumferential direction of the brake disc will not be much larger than the fit clearance available between the brake piston and the bore.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: August 15, 1989
    Assignee: Alfred Teves GmbH
    Inventors: Rudolf Thiel, Ulrich Klimt, Helmut Kast
  • Patent number: 4821847
    Abstract: A two-piece housing having a base section and a closure section, is mounted on a motor or other machine having a projecting shaft, and the housing encloses a series of annular brake discs mounted on a hub member which receives the shaft. The discs interfit between a series of non-rotating annular brake plates supported by the base section of the housing, and the hub member is also effective to circulate cooling oil within the housing and outwardly between the plates and discs. A non-rotating annular thrust plate and a set of circumferentially spaced springs are located adjacent the base section and compress the plates and discs together and against the closure section for braking the shaft. A set of circumferentially spaced solenoids are mounted on the closure housing section and have corresponding armature rods or members which extend axially into the housing to push the thrust plate against the springs when the solenoids are energized to release the plates and discs.
    Type: Grant
    Filed: December 29, 1987
    Date of Patent: April 18, 1989
    Assignee: Force Control Industries, Inc.
    Inventors: David W. Langdon, Michael J. Sharratt
  • Patent number: 4667779
    Abstract: This invention relates to a unidirectional high gain brake arrangement that includes in combination a shaft mounted for rotation within a housing. The shaft is rotatable in either direction. A brake is selectively releasably coupled to the housing and to the shaft. The brake has a first member. An intermittent motion device is respectively coupled through the first member to the housing and through a one-way clutch to the shaft. The brake also has a second member that is mechanically coupled to the first brake member and to the housing. The intermittent motion device causes the brake to be activated by movement imparted to the first brake member after a preset number of revolutions of the shaft in one direction. The brake is released by rotation of the shaft in an opposite direction whereby torque transmitted through the one-way clutch to the first brake member is removed.
    Type: Grant
    Filed: April 22, 1986
    Date of Patent: May 26, 1987
    Assignee: Sundstrand Corporation
    Inventor: David J. Lang
  • Patent number: 4637499
    Abstract: An expanding mechanism for an interior shoe drum brake, such as a simplex "expander-wedge" type brake, comprises a cylinder housing affixed to a brake support, coaxially mounted pressure pistons slidable in the housing, expander members adjoining the respective pressure pistons and adjusting screws threaded into the pressure pistons which screws engage flange members of the respective brake shoes via interposed pressure pieces. To avoid local pressure peaks, the exterior ends of the adjusting screws are provided with part spherical indentations and the pressure pieces have complementary part spherical inner ends accommodated therein. The outer ends of the respective pressure pieces are connected to the respective flange members of the brake shoes by groove-type guides perpendicular to the axis of the brake drum.
    Type: Grant
    Filed: September 18, 1985
    Date of Patent: January 20, 1987
    Assignee: Deutsche Perrot-Bremse GmbH
    Inventor: Bernd Rupprecht
  • Patent number: 4577733
    Abstract: A drum brake or clutch has a fixing member, a drum adapted to be rotatable relative to the fixing member, a pair of arcuate shoes disposed within the drum such as to come in and out of contact with the drum, an actuating device attached to the fixing member and having an actuator adapted to act on at least one end of each of the shoes, and a return spring acting such as to separate each of the shoes from the drum. The drum brake or clutch further includes a lever member pivotally attached to one end portion of each of the shoes. The lever member has one end thereof engaged with the actuator of the actuating device and the other end thereof engaged with an abutment member provided on the fixing member.
    Type: Grant
    Filed: May 31, 1984
    Date of Patent: March 25, 1986
    Assignees: Nisshin Spinning Co., Ltd., Sumitomo Heavy Industries Ltd.
    Inventors: Tadayuki Oguro, Teturo Yoshimoto, Hazime Niki
  • Patent number: 4535874
    Abstract: A brake lining carrier has a base plate one side of which can be detachably mounted on a brake lining support member and on the other side thereof is a layer of resilient material upon which are positioned a plurality of brake lining elements disposed to define a friction braking surface. A frame is provided on the edge portion of the base plate to enclose the brake lining elements. Each brake lining element is mounted upon a carrier plate which has projecting flange portions on two longitudinal sides of the brake lining element. The flange portions on the outer longitudinal sides are received within a groove formed in the frame and the flange portions on the inner longitudinal side extend into an open central portion of the friction lining block in which there is a clamp exerting a force against the inner flange portions in a direction perpendicular to the friction surface.
    Type: Grant
    Filed: August 5, 1983
    Date of Patent: August 20, 1985
    Assignee: Knorr-Bremse GmbH
    Inventors: Hans Pollinger, Eckart Saumweber, Mathias Schorwerth, Xaver Wirth
  • Patent number: 4422600
    Abstract: This invention relates to a fishing reel which has free spooling, variable drag, and lock up action controlled by an exterior lever. The lever is cammed to a draw rod, which, in turn, through a floating contact, pins journalled through the reel housing, and a thrust bearing, urges a brake disk against a brake lining fixed to the spool. The floating contact is adjustable for presetting the maximum drag and provides smooth operation even under conditions of a warped brake disk or uneven brake lining. And use of approximately a dozen pressure pins, depending on reel size, avoids pressure warpage of the thrust bearing race and consequent binding during maximum drag operation. The brake disk, floating contact, journalled pins, and thrust bearing are located in a housing opposite that containing the lever, winding handle, and a second thrust bearing for the spool and thereby permit easy access for repair.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: December 27, 1983
    Inventor: Robert Preston
  • Patent number: 4358004
    Abstract: A load-taking device for use in the disc pack of a multi-disc brake assembly. The load-taking device is located at one end of the pack, interposed between the pack and a cylinder for applying thrust to the pack or for resisting thrust applied to the pack. It has an annular support and a plurality of hollow bell-shaped load-taking members extending from one side of the support in circumferentially spaced relation which are rounded at the ends which contact the adjacent disc of the pack.
    Type: Grant
    Filed: May 21, 1980
    Date of Patent: November 9, 1982
    Assignee: Dunlop Limited
    Inventors: Frederick S. Dowell, Benedict P. Healy
  • Patent number: 4287968
    Abstract: A device at a brake actuator for permitting thrust force transmission between an axially movable push rod (4) of the actuator and a brake block holder (6) moving out of line with the push rod.In order to ensure force transmission irrespective of the brake block holder movements and to avoid any slippage between the members a transmission part (5) is arranged between the push rod (4) and the brake block holder (6) and has spherical surfaces in engagement therewith, these surfaces having a common center.
    Type: Grant
    Filed: October 16, 1979
    Date of Patent: September 8, 1981
    Assignee: SAB Industri AB
    Inventors: Bo G. Stensson, Jan O. Harstrom, Jan Csiba
  • Patent number: 4083436
    Abstract: Brake apparatus, particularly one in which the brake may be both actuated and released by a hydraulic force, held engaged by a mechanical force and in which a strong spring force, tending to restore the brake, prevails while the brake is held engaged; brake applying pressure, after the brake is engaged, is at first slowly released, hydraulic pressure employed to release the brake is maintained at a minimum value even though the brake may be released and certain conditions are sensed for coincidence before generating a signal indicating that the brake release conditions are complied with.
    Type: Grant
    Filed: April 12, 1976
    Date of Patent: April 11, 1978
    Assignee: Abex Corporation
    Inventor: John E. Straut
  • Patent number: 4055238
    Abstract: A disc brake including a piston for urging a friction pad against one surface of a rotatable disc, in which a plate having a freedom of movement in radial directions is disposed between the piston and the friction pad for transmitting thrust from the piston to the friction pad.
    Type: Grant
    Filed: March 3, 1976
    Date of Patent: October 25, 1977
    Assignee: Tokico Ltd.
    Inventors: Tetsuo Haraikawa, Hiroshi Ito
  • Patent number: 4015694
    Abstract: A vehicle brake having a pair of brake shoes moveably mounted and arranged in end-to-end relationship on a fixed backing plate. A pair of levers is pivotally mounted on the backing plate. The levers have thrust transmitting portions which are interposed between a pair of opposed brake shoe ends and a hydraulic service brake actuator for moving the brake shoes into engagement with the brake drum. The levers also have swinging end portions which pivot inwardly in opposite directions upon outward movement of the thrust transmitting portions. The lever thrust portions have concavely curved camming surfaces which slidably engage complementary convexly curved brake shoe end surface for transmitting the hydraulic actuator force to the brake shoes. A mechanically actuated parking brake mechanism is mounted on the backing plate and is operatively connected to the lever swing end portions by a pair of links.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: April 5, 1977
    Assignee: Aspro, Inc.
    Inventors: John D. Danko, Richard C. St. John
  • Patent number: 4004656
    Abstract: A braking apparatus wherein the heat absorbing mass of a rotating braked element, such as a vehicle wheel, is increased by securing to such as each wheel of a vehicle, a brake drum, the peripheries of the wheels and drums constituting braking surfaces against which a plurality of brake shoes are pressed during a brake application by a movable member between which and the brake shoes there is interposed a mechanism that provides for shifting of the brake shoes relative to the movable member in such a manner as to enable each brake shoe to transmit substantially the same braking force to the corresponding braking surface notwithstanding the rate of wear of one shoe exceeding that of another.
    Type: Grant
    Filed: June 17, 1975
    Date of Patent: January 25, 1977
    Assignee: Westinghouse Air Brake Company
    Inventor: Robert B. Morris