WO1999050109A1 - Partie roulante de frein a profile annulaire non circulaire - Google Patents

Partie roulante de frein a profile annulaire non circulaire Download PDF

Info

Publication number
WO1999050109A1
WO1999050109A1 PCT/US1998/016023 US9816023W WO9950109A1 WO 1999050109 A1 WO1999050109 A1 WO 1999050109A1 US 9816023 W US9816023 W US 9816023W WO 9950109 A1 WO9950109 A1 WO 9950109A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
friction
outer peripheral
friction surfaces
generally straight
Prior art date
Application number
PCT/US1998/016023
Other languages
English (en)
Inventor
Larry K. Telfer
Original Assignee
Hayes Lemmerz International, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hayes Lemmerz International, Inc. filed Critical Hayes Lemmerz International, Inc.
Priority to AU86813/98A priority Critical patent/AU8681398A/en
Publication of WO1999050109A1 publication Critical patent/WO1999050109A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/12—Discs; Drums for disc brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/0006—Noise or vibration control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/026—Braking members; Mounting thereof characterised by a particular outline shape of the braking member, e.g. footprint of friction lining
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/1308—Structure one-part
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/1328—Structure internal cavities, e.g. cooling channels

Definitions

  • the present invention relates to rotors for caliper disc brakes and the like, and in particular to such a brake rotor having a non-circular ring section.
  • Rotors are generally well known in the art, and are used extensively in caliper disc brakes, power transmission devices, and other similar machinery and mechanisms. Brake rotors are typically cast from a ferrous material such as grey iron, and then are machined in multiple operations to shape the rotor, and form the opposite friction surfaces which interface with associated brake pads . Cast aluminum rotors are available to reduce the weight and corrosion problems associated with ferrous metal rotors, although the heat resistance and brake surface toughness of cast aluminum is typically less desirable than that of other types of rotors. In addition, there are some composite rotors, in which different portions of the rotor are formed of different materials .
  • Conventional rotors are formed of a radially inner hub or hat section having a central mounting face for mounting the rotor on an associated drive member, with an outer friction portion extending from the cylindrical hat wall.
  • the outer friction portion includes a pair of opposite, flat annular friction surfaces adapted to interface with associated friction members, such as brake pads.
  • the outer friction portion of the rotor may be vented or solid. In either case, both of the friction surfaces are formed with a circular outer peripheral edge.
  • While currently available brake rotors have provided effective braking operation, one of the problems associated therewith is noise which resonates from the vehicle through the rotor during operation of the vehicle. It would therefore be advantageous to provide an improved rotor which offers a reduction in such noise.
  • the brake rotor of the invention includes a conventional hat section having a central mounting face for mounting the rotor on an associated drive member, such as a spindle or vehicle axle.
  • the hat section also includes a cylindrical shoulder or hat wall extending from the periphery of the mounting face.
  • An outer friction portion extend from the hat wall and includes a pair of mutually parallel, spaced apart friction surfaces which are adapted to interface with associated friction members, such as brake pads or the like.
  • at least one of the friction surfaces is provided with a non-circular, radially outer peripheral edge.
  • Fig. 1 is a fragmentary, front elevational view of a rotor embodying the present invention.
  • Fig. 2 is a cross-sectional view, taken along the line 2-2 in Fig. 1 of a portion of the rotor of the invention.
  • a rotor in accordance with the invention denoted generally by the reference numeral 10.
  • the rotor 10 is of the type adapted for use in conjunction with a variety of mechanical devices, such as caliper disc brakes and the like.
  • the rotor 10 includes a radially inner hub or hat section 12 having a central mounting face 14 for mounting the rotor 10 on an associated drive member (not shown) , such as a spindle or vehicle axle .
  • the hat section 12 also includes a cylindrical shoulder or hat wall 16 extending from the periphery of the mounting face 14.
  • the central mounting face 14 of the hat section 12 of rotor 10 is provided with a central pilot aperture 18 in which a spindle hub or the like (not shown) may be closely received, and a plurality of circumferentially spaced apart fastener apertures 20 in which fasteners (also not shown) may be received to mount the rotor 10 on an associated drive mechanism in the conventional manner.
  • the rotor 10 also includes an outer friction portion, denoted generally by the reference numeral 30 in the drawings.
  • the rotor 10 is a vented rotor, wherein the outer friction portion 30 includes an outboard ring section 32 and an inboard ring section 33.
  • the ring sections 32 and 33 are fixedly interconnected in a mutually parallel, spaced apart relationship by a plurality of circumferentially spaced apart support ribs 40 extending therebetween.
  • the shape, size and location of the ribs 40 can be varied as desired.
  • the ring sections 32 and 33 have opposed, flat annular friction surfaces 34 and 35, respectively, which are adapted to interface with associated friction members (not shown), such as brake pads or the like.
  • associated friction members such as brake pads or the like.
  • at least one, and preferably both, of the ring sections 32 and 33 are provided with non-circular outer peripheral edges, 36 and 37 respectively.
  • the non-circular outer peripheral edges 36 and 37 of the ring sections 32 and 33 are preferably formed of a plurality of adjoining, generally straight edge sections 38 of equal length, so that the outer peripheral edges 36 and 37 are roughly polygonal. Alternatively, the edge sections 38 may be somewhat curved .
  • the non-circular outer peripheral edges 36 and 37 will result in a lower level of resonant noise from the rotor 10 of the invention than with conventional rotors.
  • the circularity of the braking surfaces 34 and 35 themselves must be maintained to allow for an effective interface with the associated friction members, and there is generally fairly restrictive size limitations on the surfaces 34 and 35 for a given rotor.
  • the number and positioning of the sides 38 is preferably determined by balancing these considerations.
  • the outer edges 36 and 37 are both formed of 16 straight edge sections 38 of substantially equal length.
  • the rotor 10 of the invention may be formed of any suitable material, such as cast grey iron, aluminum or alloys or composites thereof, as examples.
  • the rotor 10 may be formed using conventional manufacturing methods, such as casting.
  • the rotor 10 is preferably formed of cast grey iron using conventional techniques with a core modified to provide for a rotor structure embodying the invention.
  • the rotor 10 may also be cast with outer edges of the ring sections being circular and then machined to form the non-circular outer edges 36 and 37 of the invention.
  • a vented rotor was shown and described in the illustrative embodiment, the invention may be applied to solid rotors as well.
  • a solid outer friction portion extends from the hat wall and includes a pair of mutually parallel, spaced apart friction surfaces.
  • the radially outer edge adjacent at least one of the friction surfaces is formed so as to be non-circular.
  • the entire outer edge of the solid outer friction portion of the rotor is non-circular, as described above for a vented rotor.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

Selon cette invention, une partie roulante de frein comprend un profilé oméga ordinaire (12) comportant une face de montage centrale, qui est destinée au montage de la partie roulante sur un élément d'entraînement approprié tel qu'une broche ou un axe de véhicule. Le profilé oméga comprend également un épaulement cylindrique (16), ou paroi du profilé oméga, qui fait saillie depuis la périphérie de la face de montage. Une partie de frottement externe (10), qui s'étend depuis la paroi du profilé oméga, comprend deux surfaces de frottement parallèles espacées (34, 35), conçues pour interagir avec des éléments de frottement associés tels que des plaquettes de freins ou similaires. Au moins une des surfaces de frottement est pourvue sur le pourtour d'un bord périphérique externe non circulaire.
PCT/US1998/016023 1998-03-31 1998-07-31 Partie roulante de frein a profile annulaire non circulaire WO1999050109A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU86813/98A AU8681398A (en) 1998-03-31 1998-07-31 Brake rotor with non-circular ring section

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5227098A 1998-03-31 1998-03-31
US09/052,270 1998-03-31

Publications (1)

Publication Number Publication Date
WO1999050109A1 true WO1999050109A1 (fr) 1999-10-07

Family

ID=21976506

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/016023 WO1999050109A1 (fr) 1998-03-31 1998-07-31 Partie roulante de frein a profile annulaire non circulaire

Country Status (2)

Country Link
AU (1) AU8681398A (fr)
WO (1) WO1999050109A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6367598B1 (en) 2000-06-30 2002-04-09 Kelsey-Hayes Company Rotor for disc brake assembly
WO2009075002A1 (fr) * 2007-12-13 2009-06-18 Freni Brembo S.P.A. Bande de freinage d'un disque pour un disque de frein, disque d'un disque de frein, et procédé de fabrication de celui-ci
DE102011115290A1 (de) * 2011-09-29 2013-04-04 Audi Ag Bremsscheibe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3237731A (en) * 1964-01-23 1966-03-01 Bendix Corp Disc brake rotor construction
US3807534A (en) * 1972-06-16 1974-04-30 Bendix Corp Friction disc
US4641731A (en) * 1981-11-13 1987-02-10 Honda Giken Kogyo Kabushiki Kaisha Disc brake for motorcycles
US5454454A (en) * 1993-11-22 1995-10-03 Raybestos Products Co. Polygonal friction disk and method
US5480007A (en) * 1993-07-07 1996-01-02 Kelsey-Hayes Company Disc brake rotor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3237731A (en) * 1964-01-23 1966-03-01 Bendix Corp Disc brake rotor construction
US3807534A (en) * 1972-06-16 1974-04-30 Bendix Corp Friction disc
US4641731A (en) * 1981-11-13 1987-02-10 Honda Giken Kogyo Kabushiki Kaisha Disc brake for motorcycles
US5480007A (en) * 1993-07-07 1996-01-02 Kelsey-Hayes Company Disc brake rotor
US5454454A (en) * 1993-11-22 1995-10-03 Raybestos Products Co. Polygonal friction disk and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6367598B1 (en) 2000-06-30 2002-04-09 Kelsey-Hayes Company Rotor for disc brake assembly
WO2009075002A1 (fr) * 2007-12-13 2009-06-18 Freni Brembo S.P.A. Bande de freinage d'un disque pour un disque de frein, disque d'un disque de frein, et procédé de fabrication de celui-ci
DE102011115290A1 (de) * 2011-09-29 2013-04-04 Audi Ag Bremsscheibe

Also Published As

Publication number Publication date
AU8681398A (en) 1999-10-18

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