EP0981785A1 - Rotor monobloc a ailettes pour freins a disque a etrier et analogues - Google Patents

Rotor monobloc a ailettes pour freins a disque a etrier et analogues

Info

Publication number
EP0981785A1
EP0981785A1 EP98923348A EP98923348A EP0981785A1 EP 0981785 A1 EP0981785 A1 EP 0981785A1 EP 98923348 A EP98923348 A EP 98923348A EP 98923348 A EP98923348 A EP 98923348A EP 0981785 A1 EP0981785 A1 EP 0981785A1
Authority
EP
European Patent Office
Prior art keywords
fins
rotor
support plate
annular
extending
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP98923348A
Other languages
German (de)
English (en)
Other versions
EP0981785A4 (fr
Inventor
Weston E. Dickerson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hayes Lemmerz International Inc
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
Publication of EP0981785A1 publication Critical patent/EP0981785A1/fr
Publication of EP0981785A4 publication Critical patent/EP0981785A4/fr
Withdrawn legal-status Critical Current

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
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/1316—Structure radially segmented
    • 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
    • F16D2065/132—Structure layered
    • 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.
  • Rotors are generally well known in the art, and are used extensively in caliper disc brakes, power transmission devices, clutches, and other similar machinery and mechanisms.
  • Brake rotors are typically cast from a ferrous material, such as cast grey iron, and are then 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.
  • solid cast iron or cast aluminum rotors are preferred from the standpoint of strength.
  • the ability of a brake rotor to quickly transfer and dissipate heat generated during the braking process is also a very desirable feature, as excess heat leads to premature brake wear and/or failure.
  • vented rotors are generally preferred for their increased cooling characteristics.
  • the present invention is a rotor for caliper disc brakes and the like.
  • the rotor of the invention includes an inner hub or hat section having a central, outboard mounting face for mounting the rotor on a drive member and a hat wall which extends from the periphery of the mounting face.
  • An outer friction portion adapted to interface with associated friction members is connected to the hat wall of the hat section.
  • the outer friction portion of the rotor of the invention includes an annular support plate having a friction ring section on both of the major surfaces thereof.
  • Each of the friction ring sections is formed of a plurality of circumferentially spaced apart fins.
  • Each of the fins includes a substantially flat friction surface, so that the plurality of fins combines to define an annular, non- continuous friction surface on each face of the support plate adapted to interface with an associated friction member, such as a brake pad.
  • Fig. 1 is a 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.
  • 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 generally 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 outer friction portion 30 of the rotor 10 of the invention includes an annular core or support plate 32 extending from the hat wall 16 of the hat section 12, proximate the inboard edge thereof (on the left as shown in Fig. 2) .
  • the support plate 32 is preferably of a solid construction for increased strength, and includes an annular inboard surface 34 and an annular outboard surface 36.
  • An inboard friction ring section 38 is provided on the inboard surface 34 of the support plate 32, and an outboard friction ring section 40 is provided on the outboard surface 36 of the support plate 32.
  • the friction ring section 38 is formed of a plurality of circumferentially spaced apart fins 42 extending from the inboard surface 34 of the support plate 32.
  • the friction ring section 40 is formed of a plurality of circumferentially spaced apart fins 44 extending from the outboard surface 36 of the support plate 32.
  • the plurality of fins 42 and 44 are mirror images of one another, so that only the fins 42 will be discussed in further detail.
  • Each of the fins 42 includes a substantially flat friction surface 42a, so that the combination of the plurality of surfaces 42a of fins 42 defines an annular, though non-continuous, friction surface adapted to interface with an associated friction member, such as a brake pad.
  • the fins 42 are generally radially extending, although they are preferably angled somewhat from a true radial direction, and are most preferably formed in the generally spiral configuration illustrated in Fig 1. In this manner, an associated friction member, such as a brake pad, will not simultaneously engage the entire leading edge of any of the fins 42.
  • the fins 42 are also preferably shaped so as to increase in width from the radially inner ends to the radially outer ends thereof, as best seen in Fig. 1.
  • the fins 42 are preferably formed so that the peripheral edge defining the friction surface 42a is rounded, thereby further facilitating the smooth engagement of the fins 42 with the associated friction member.
  • the fins 42 are preferably formed of a size and shape and with a particular spacing for a given application such that the associated friction member simultaneously engages more than one fin 42 upon activation. In many applications, it will be desired to have the associated friction member simultaneously engage three or more fins 42 upon activation .
  • the generally radially extending space between fins 42 should be as large as possible to provide for enhanced air flow about the fins 42, as long as the total surface area 42a engaged by the associated friction member is sufficient to provide the desired braking force.
  • the fins 42 are spaced radially from the radially outer surface of the hat wall 16 of the rotor 10 to further enhance the air flow about the fins 42.
  • the shape, size and location of the fins 42 and 44 can be varied to achieve the desired braking force and air flow characteristics .
  • 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 of the invention provides the strength of a solid rotor with the desirable increased cooling characteristics of a vented rotor.

Landscapes

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

Abstract

Cette invention se rapporte à un rotor (10) pour freins à disque à compas et analogues, qui comporte une partie externe à frottement comprenant une plaque de support annulaire (32) ayant une section de bague de frottement sur chacune de ses deux surfaces principales, chaque section étant conçue pour faire l'interface avec un élément de frottement associé, tel qu'un patin de frein. Chacune des sections de bague de frottement est constituée d'une pluralité d'ailettes (42, 44) distantes les unes des autres le long de la circonférence, de sorte que la pluralité des surfaces d'ailettes (42a) se combinent pour définir une surface de frottement annulaire, non continue, de part et d'autre de la plaque de support (32). Le rotor (10) de cette invention associe la solidité d'un rotor monobloc aux caractéristiques souhaitables de refroidissement accru d'un rotor ventilé.
EP98923348A 1997-05-05 1998-05-05 Rotor monobloc a ailettes pour freins a disque a etrier et analogues Withdrawn EP0981785A4 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US54731 1993-04-29
US4556897P 1997-05-05 1997-05-05
US45568P 1997-05-05
US5473198A 1998-04-03 1998-04-03
PCT/US1998/009303 WO1998050837A1 (fr) 1997-05-05 1998-05-05 Rotor monobloc a ailettes pour freins a disque a compas et analogues

Publications (2)

Publication Number Publication Date
EP0981785A1 true EP0981785A1 (fr) 2000-03-01
EP0981785A4 EP0981785A4 (fr) 2000-12-06

Family

ID=26722931

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98923348A Withdrawn EP0981785A4 (fr) 1997-05-05 1998-05-05 Rotor monobloc a ailettes pour freins a disque a etrier et analogues

Country Status (5)

Country Link
EP (1) EP0981785A4 (fr)
JP (1) JP2001524197A (fr)
AU (1) AU7565998A (fr)
CA (1) CA2289072A1 (fr)
WO (1) WO1998050837A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES1042797Y (es) * 1999-04-16 2000-03-16 Aloy Jordi Nadal Freno de disco perfeccionado.
US8893863B2 (en) 2007-08-22 2014-11-25 Tech M3, Inc. Reduction of particulate emissions from vehicle braking systems
US8449943B2 (en) 2007-02-20 2013-05-28 Tech M3, Inc. Composite brake disks and methods for coating
EP2122004B1 (fr) 2007-02-20 2013-01-30 Tech M3, Inc. Revêtement résistant à l'usure pour disques de frein avec aspect de surface unique et procédés de revêtement
CN101836006B (zh) 2007-08-22 2013-04-24 M3技术有限公司 制动盘及其制造方法
WO2014145231A2 (fr) 2013-03-15 2014-09-18 Tech M3, Inc. Systèmes de freinage incorporant des rotors résistant à l'usure et à la corrosion
US10197121B2 (en) 2013-03-15 2019-02-05 Tech M3, Inc. Wear resistant braking systems

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2587047A (en) * 1950-04-27 1952-02-26 Westinghouse Air Brake Co Rotor for disk brakes
US3171527A (en) * 1958-12-31 1965-03-02 Schuler L Ag Friction device
US3289797A (en) * 1962-09-10 1966-12-06 Wehr Steel Company Rotary motion control device
US3295640A (en) * 1964-11-17 1967-01-03 Teves Kg Alfred Disk-type friction brake
US3623577A (en) * 1969-11-13 1971-11-30 Kelsey Hayes Co Corrugated rotor for disk brakes

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE538507C (de) * 1930-07-10 1931-11-16 Siemens Schuckertwerke Akt Ges Schwungrad
FR788671A (fr) * 1935-04-12 1935-10-14 Novi Perfectionnements aux volants magnétiques pour moteurs à explosion
US2753808A (en) * 1950-02-15 1956-07-10 Kluge Dorothea Centrifugal impeller
US3314509A (en) * 1965-04-16 1967-04-18 Buffalo Brake Beam Co Railway brake discs
GB1135495A (en) * 1966-07-19 1968-12-04 Holset Engineering Co Means for cooling torsional vibration damper
DE2401462C3 (de) * 1974-01-12 1979-09-06 Sueddeutsche Kuehlerfabrik Julius Fr. Behr, 7000 Stuttgart Lüfter mit Flüssigkeitsreibungskupplung
US3899054A (en) * 1974-02-08 1975-08-12 Abex Corp Disc brakes with cooling rods
US4555239A (en) * 1982-06-01 1985-11-26 Dayco Corporation Belt pulley and method of making the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2587047A (en) * 1950-04-27 1952-02-26 Westinghouse Air Brake Co Rotor for disk brakes
US3171527A (en) * 1958-12-31 1965-03-02 Schuler L Ag Friction device
US3289797A (en) * 1962-09-10 1966-12-06 Wehr Steel Company Rotary motion control device
US3295640A (en) * 1964-11-17 1967-01-03 Teves Kg Alfred Disk-type friction brake
US3623577A (en) * 1969-11-13 1971-11-30 Kelsey Hayes Co Corrugated rotor for disk brakes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9850837A1 *

Also Published As

Publication number Publication date
CA2289072A1 (fr) 1998-11-12
EP0981785A4 (fr) 2000-12-06
AU7565998A (en) 1998-11-27
JP2001524197A (ja) 2001-11-27
WO1998050837A1 (fr) 1998-11-12

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