FR2746156A1 - Disc brake for motor vehicle - Google Patents

Disc brake for motor vehicle Download PDF

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Publication number
FR2746156A1
FR2746156A1 FR9603168A FR9603168A FR2746156A1 FR 2746156 A1 FR2746156 A1 FR 2746156A1 FR 9603168 A FR9603168 A FR 9603168A FR 9603168 A FR9603168 A FR 9603168A FR 2746156 A1 FR2746156 A1 FR 2746156A1
Authority
FR
France
Prior art keywords
bowl
friction ring
radial
annular
brake disc
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.)
Granted
Application number
FR9603168A
Other languages
French (fr)
Other versions
FR2746156B1 (en
Inventor
Stephane Labroue
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.)
Automobiles Peugeot SA
Original Assignee
Automobiles Peugeot SA
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 Automobiles Peugeot SA filed Critical Automobiles Peugeot SA
Priority to FR9603168A priority Critical patent/FR2746156B1/en
Publication of FR2746156A1 publication Critical patent/FR2746156A1/en
Application granted granted Critical
Publication of FR2746156B1 publication Critical patent/FR2746156B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • F16D65/123—Discs; Drums for disc brakes comprising an annular disc secured to a hub member; Discs characterised by means for mounting
    • 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
    • F16D65/128—Discs; Drums for disc brakes characterised by means for cooling
    • 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
    • F16D2065/1328—Structure internal cavities, e.g. cooling channels
    • 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
    • F16D2065/134—Connection
    • F16D2065/1344—Connection permanent, e.g. by casting
    • 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
    • F16D2250/00—Manufacturing; Assembly
    • F16D2250/0007—Casting
    • F16D2250/0015—Casting around inserts

Landscapes

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

Abstract

The disc brake rotor has a friction ring (2) and an interior dished section (3) for connection of the ring to a hub (4). The friction surface is formed by moulding the material onto the face of the rotor in the peripheral part of the dished section. The dished section can be formed as a sheet with the peripheral part (6) formed as an annular cheek which extends into at least the major part of the friction ring and which has radial openings (10) receiving the internal portions (9,11) of the friction ring. The friction ring can have two annular parts axially separated and connected by radial ribs (9) forming the internal parts and extending across the radial openings of the annular ring.

Description

La présente invention concerne un disque de frein pour freins à disques notamment de véhicules automobiles. The present invention relates to a brake disc for disc brakes, in particular for motor vehicles.

On connaît un disque de frein composite du type comprenant une couronne de friction et un bol intérieur de liaison de la couronne de friction à un moyeu de roue du véhicule, la couronne de friction étant réalisée par surmoulage sur une partie périphérique du bol. A composite brake disc is known of the type comprising a friction ring and an inner bowl for connecting the friction ring to a wheel hub of the vehicle, the friction ring being produced by overmolding on a peripheral part of the bowl.

Cependant, un tel disque de frein connu ne permet pas d'assurer une bonne cohésion d'ensemble. However, such a known brake disc does not ensure good overall cohesion.

La présente invention a pour but d'éliminer l'inconvénient ci-dessus du disque de frein connu en proposant un disque de frein pour freins à disques notamment de véhicules automobiles, du type composite et comprenant une couronne de friction et un bol intérieur de liaison de la couronne de friction à un moyeu, la couronne de friction étant réalisée par surmoulage sur une partie périphérique du bol et qui est caractérisé en ce que le bol est réalisé en tôle et la partie périphérique du bol constitue un flasque annulaire qui s'étend dans au moins la majeure partie de la couronne de friction et qui comporte des ouvertures radiales recevant des portions internes de la couronne de friction. The object of the present invention is to eliminate the above drawback of the known brake disc by proposing a brake disc for disc brakes, in particular of motor vehicles, of the composite type and comprising a friction crown and an internal connection bowl. from the friction ring to a hub, the friction ring being produced by overmolding on a peripheral part of the bowl and which is characterized in that the bowl is made of sheet metal and the peripheral part of the bowl constitutes an annular flange which extends in at least the major part of the friction ring and which has radial openings receiving internal portions of the friction ring.

La couronne de friction comprend deux parties annulaires séparées axialement et reliées entre elles par des nervures radiales constituant les portions internes précitées et traversant respectivement les ouvertures radiales du flasque annulaire du bol. The friction ring comprises two annular parts separated axially and connected to each other by radial ribs constituting the above-mentioned internal portions and passing respectively through the radial openings of the annular flange of the bowl.

Avantageusement, le flasque annulaire du bol comprend, entre ses ouvertures radiales, des ailettes radiales formées par découpage et pliage ou emboutissage de la tôle du bol. Advantageously, the annular flange of the bowl comprises, between its radial openings, radial fins formed by cutting and bending or stamping the sheet of the bowl.

L'invention sera mieux comprise et d'autres buts, caractéristiques, détails et avantages de celle-ci apparaîtront plus clairement dans la description explicative qui va suivre faite en référence aux dessins schématiques annexés donnés uniquement à titre d'exemple illustrant plusieurs modes de réalisation de l'invention et dans lesquels
- la figure 1 représente une coupe radiale d'un disque de frein suivant un premier mode de réalisation de l'invention
- la figure 2 est une vue en coupe suivant la ligne II II de la figure 1
- la figure 3 est une vue en coupe radiale d'un disque de frein suivant un second mode de réalisation de l'invention
- la figure 4 est une vue en coupe suivant la ligne IV
IV de la figure 3
- la figure 5 est une vue en coupe raidale d'un disque de frein suivant un troisième mode de réalisation de l'invention
- la figure 6 est une vue en coupe suivant la ligne VI
VI de la figure 5
- la figure 7 est une vue en coupe radiale d'un disque de frein suivant un quatrième mode de réalisation de l'invention
- la figure 8 est une vue en coupe suivant la ligne
VIII-VIII de la figure 7 ; et
- la figure 9 est une vue en coupe suivant la ligne IX
IX de la figure 8.The invention will be better understood and other objects, characteristics, details and advantages thereof will appear more clearly in the explanatory description which follows, made with reference to the appended schematic drawings given solely by way of example illustrating several embodiments of the invention and in which
- Figure 1 shows a radial section of a brake disc according to a first embodiment of the invention
- Figure 2 is a sectional view along line II II of Figure 1
- Figure 3 is a radial sectional view of a brake disc according to a second embodiment of the invention
- Figure 4 is a sectional view along line IV
IV of figure 3
- Figure 5 is a stiff sectional view of a brake disc according to a third embodiment of the invention
- Figure 6 is a sectional view along line VI
VI of figure 5
- Figure 7 is a radial sectional view of a brake disc according to a fourth embodiment of the invention
- Figure 8 is a sectional view along the line
VIII-VIII of Figure 7; and
- Figure 9 is a sectional view along line IX
IX of figure 8.

En se reportant aux figures 1 et 2, le disque de frein composite 1, pouvant être utilisé dans un frein à disque notamment de véhicule automobile, comprend une couronne de friction 2 et un bol intérieur 3 assurant la liaison de la couronne de friction 2 à un moyeu 4 de roue du véhicule. Le bol 3 est centré sur le moyeu 4 et est en appui sur une partie épaulée 5 solidaire du moyeu 4 en étant fixé à celleci par des vis de fixation (non représentées). La couronne de friction 2 est réalisée par surmoulage sur une partie périphérique 6 du bol 3 et est constituée de deux parties annulaires de friction 7 et 8 séparées axialement et reliées entre elles par des nervures radiales 9. Referring to Figures 1 and 2, the composite brake disc 1, which can be used in a disc brake in particular of a motor vehicle, comprises a friction ring 2 and an inner bowl 3 ensuring the connection of the friction ring 2 to a vehicle wheel hub 4. The bowl 3 is centered on the hub 4 and is supported on a shouldered part 5 integral with the hub 4 while being fixed to this by fixing screws (not shown). The friction ring 2 is produced by overmolding on a peripheral part 6 of the bowl 3 and consists of two annular friction parts 7 and 8 separated axially and connected to one another by radial ribs 9.

Selon l'invention, le bol 3 est une pièce en tôle et sa partie périphérique 6 constitue un flasque annulaire qui s'étend dans au moins la majeure partie de la couronne de friction 2 et qui comporte des ouvertures radiales équidistantes 10, chacune en forme de trou oblong. According to the invention, the bowl 3 is a sheet metal part and its peripheral part 6 constitutes an annular flange which extends in at least most of the friction ring 2 and which has equidistant radial openings 10, each in shape oblong hole.

Comme cela ressort des figures 1 et 2, le flasque annulaire 6 du bol 3 s'étend dans la partie annulaire de friction 8 de la couronne de friction 2 du disque 1 et les ouvertures radiales 10 de ce flasque reçoivent des portions internes 11 de la partie annulaire de friction 8 constituées par des nervures radiales. As can be seen from FIGS. 1 and 2, the annular flange 6 of the bowl 3 extends in the annular friction part 8 of the friction ring 2 of the disc 1 and the radial openings 10 of this flange receive internal portions 11 of the annular friction part 8 formed by radial ribs.

Le second mode de réalisation représenté aux figures 3 et 4 ne diffère de celui des figures 1 et 2 que par la structure de la couronne de friction 2 qui, dans ce second mode de réalisation, comporte une seule partie annulaire surmoulée sur le flasque annulaire 6 du bol 3 de façon que les ouvertures radiales 10 du flasque 6 soient traversées par les portions internes radiales 11 de la couronne de friction 2. The second embodiment shown in Figures 3 and 4 differs from that of Figures 1 and 2 only in the structure of the friction ring 2 which, in this second embodiment, comprises a single annular part overmolded on the annular flange 6 of the bowl 3 so that the radial openings 10 of the flange 6 are crossed by the radial internal portions 11 of the friction ring 2.

Selon le troisième mode de réalisation réprésenté aux figures 5 et 6, le flasque annulaire 6 du bol 2 s'étend entre les deux parties annulaires de friction 7, 8 de la couronne 2 et les nervures radiales 9 de liaison de ces deux parties annulaires 7, 8 traversent respectivement les ouvertures radiales 10 du flasque annulaire 6. La figure 5 montre que cette conception du disque 1 permet une double ventilation de celui-ci comme indiqué par les flèches A. According to the third embodiment shown in Figures 5 and 6, the annular flange 6 of the bowl 2 extends between the two annular friction parts 7, 8 of the crown 2 and the radial ribs 9 connecting these two annular parts 7 , 8 respectively pass through the radial openings 10 of the annular flange 6. FIG. 5 shows that this design of the disk 1 allows it to be ventilated twice as indicated by the arrows A.

Le quatrième mode de réalisation représenté aux figures 7 à 9 reprend la configuration du troisième mode de réalisation et, de plus, le flasque annulaire 6 du bol 3 comprend entre ses ouvertures radiales 10 des ailettes radiales 12 qui sont formées par découpage et pliage ou emboutissage de la tôle du bol. Une telle conception permet d'obtenir une double ventilation du disque comme symbolisé par les deux flèches A en figure 7, et une évacution de chaleur optimisée par la grande surface d'échange thermique que presente la tôle du flasque 6 en plus des deux parties 7, 8 de la couronne. The fourth embodiment represented in FIGS. 7 to 9 takes up the configuration of the third embodiment and, moreover, the annular flange 6 of the bowl 3 comprises between its radial openings 10 radial fins 12 which are formed by cutting and bending or stamping from the sheet metal of the bowl. Such a design makes it possible to obtain a double ventilation of the disc as symbolized by the two arrows A in FIG. 7, and a heat evacuation optimized by the large heat exchange surface presented by the sheet of the flange 6 in addition to the two parts 7 , 8 of the crown.

Comme cela ressort des différents modes de réalisation décrits ci-dessus, la fabrication du disque de frein se décompose en deux phases : une phase d'emboutissage et de poinçonnage du bol en tôle 3 en fonction de la conception retenue des différents modes de réalisation et une phase de surmoulage dans un moule de fonderie, par coulée de fonte ou d'alliage d'aluminium, de la couronne de friction 2 sur la partie périphérique 6 du bol 3. As can be seen from the various embodiments described above, the manufacture of the brake disc is broken down into two phases: a stamping and punching phase of the sheet metal bowl 3 depending on the design adopted for the various embodiments and a molding phase in a foundry mold, by casting cast iron or aluminum alloy, of the friction ring 2 on the peripheral part 6 of the bowl 3.

Du fait que la partie périphérique 6 du bol en tôle 3 traverse quasiment la totalité de la couronne de friction 2, on assure une bonne cohésion de l'ensemble du disque de frein 1. De plus, le bol 3 reste ceinturé dans la partie radiale périphérique extrême sans discontinuité formant ceinture 6a pour assurer une bonne tenue dans le moule de fonderie lors de la coulée du métal pour surmouler la couronne de friction 2. Due to the fact that the peripheral part 6 of the sheet metal bowl 3 crosses almost all of the friction ring 2, good cohesion of the entire brake disc 1 is ensured. In addition, the bowl 3 remains surrounded in the radial part extreme device without discontinuity forming a belt 6a to ensure good hold in the foundry mold during the casting of the metal to overmold the friction ring 2.

En intégrant pratiquement totalement la partie périphérique du bol dans la couronne de friction du disque de frein, on obtient ainsi une bonne rigidité de la liaison et le bol en tôle permet de diminuer le nombre d'usinages par rapport aux disques de frein les plus usuels à bol venant de fonderie avec la couronne de friction, ce qui se traduit par un gain de temps pour la fabrication du disque de frein.  By practically completely integrating the peripheral part of the bowl into the friction ring of the brake disc, good rigidity of the connection is thus obtained and the sheet metal bowl allows the number of machining operations to be reduced compared to the most common brake discs. bowl from foundry with the friction ring, which saves time for the manufacture of the brake disc.

Claims (3)

REVENDICATIONS 1. Disque de frein pour freins à disques notamment de véhicules automobiles, du type composite et comprenant une couronne de friction (2) et un bol intérieur (3) de liaison de la couronne de friction (2) à un moyeu (4), la couronne de friction (2) étant réalisée par surmoulage sur une partie périphérique (6) du bol (3), caractérisé en ce que le bol (3) est réalisé en tôle et la partie périphérique (6) du bol (3) constitue un flasque annulaire qui s'étend dans au moins la majeure partie de la couronne de friction (2) et qui comporte des ouvertures radiales (10) recevant des portions internes (9 ; 11) de la couronne de friction (2). 1. Brake disc for disc brakes, especially of motor vehicles, of the composite type and comprising a friction ring (2) and an inner bowl (3) for connecting the friction ring (2) to a hub (4), the friction ring (2) being produced by overmolding on a peripheral part (6) of the bowl (3), characterized in that the bowl (3) is made of sheet metal and the peripheral part (6) of the bowl (3) constitutes an annular flange which extends in at least the major part of the friction ring (2) and which comprises radial openings (10) receiving internal portions (9; 11) of the friction ring (2). 2. Disque de frein selon la revendication 1, caractérisé en ce que la couronne de friction (2) comprend deux parties annulaires (7, 8) séparées axialement et reliées entre elles par des nervures radiales (9) constituant les portions internes précitées et traversant respectivement les ouvertures radiales (10) du flasque annulaire (6) du bol (3). 2. Brake disc according to claim 1, characterized in that the friction ring (2) comprises two annular parts (7, 8) separated axially and connected to each other by radial ribs (9) constituting the abovementioned internal portions and passing through respectively the radial openings (10) of the annular flange (6) of the bowl (3). 3. Disque de frein selon la revendication 1 ou 2, caractérisé en ce que le flasque annulaire (6) du bol (3) comprend, entre ses ouvertures radiales (10), des ailettes radiales (12) formées par découpage et pliage ou emboutissage de la tôle du bol (3).  3. Brake disc according to claim 1 or 2, characterized in that the annular flange (6) of the bowl (3) comprises, between its radial openings (10), radial fins (12) formed by cutting and bending or stamping of the sheet metal of the bowl (3).
FR9603168A 1996-03-13 1996-03-13 BRAKE DISC FOR DISC BRAKES, PARTICULARLY FOR MOTOR VEHICLES Expired - Fee Related FR2746156B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9603168A FR2746156B1 (en) 1996-03-13 1996-03-13 BRAKE DISC FOR DISC BRAKES, PARTICULARLY FOR MOTOR VEHICLES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9603168A FR2746156B1 (en) 1996-03-13 1996-03-13 BRAKE DISC FOR DISC BRAKES, PARTICULARLY FOR MOTOR VEHICLES

Publications (2)

Publication Number Publication Date
FR2746156A1 true FR2746156A1 (en) 1997-09-19
FR2746156B1 FR2746156B1 (en) 1998-06-05

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FR (1) FR2746156B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008025838A (en) * 2006-07-21 2008-02-07 Dr Ing H C F Porsche Ag Internal ventilation type disk brake
ITUB20155735A1 (en) * 2015-11-19 2017-05-19 Freni Brembo Spa Disc brake disk bell

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2243334A (en) * 1939-05-31 1941-05-27 Budd Wheel Co Brake disk
FR1177067A (en) * 1957-05-29 1959-04-20 Alford & Alder Engineers Ltd Brake disc improvements
DE7205718U (en) * 1972-02-16 1973-10-25 Volkswagenwerk Ag Brake disc for a disc brake
DE2358140A1 (en) * 1973-11-22 1975-06-05 Buderus Eisenwerk Air-cooled brake disc - has flat air shafts passing right through on centre line
JPS57137730A (en) * 1981-02-17 1982-08-25 Takaoka Kogyo Kk Manufacture of disc brake rotor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2243334A (en) * 1939-05-31 1941-05-27 Budd Wheel Co Brake disk
FR1177067A (en) * 1957-05-29 1959-04-20 Alford & Alder Engineers Ltd Brake disc improvements
DE7205718U (en) * 1972-02-16 1973-10-25 Volkswagenwerk Ag Brake disc for a disc brake
DE2358140A1 (en) * 1973-11-22 1975-06-05 Buderus Eisenwerk Air-cooled brake disc - has flat air shafts passing right through on centre line
JPS57137730A (en) * 1981-02-17 1982-08-25 Takaoka Kogyo Kk Manufacture of disc brake rotor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 006, no. 240 (M - 174) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008025838A (en) * 2006-07-21 2008-02-07 Dr Ing H C F Porsche Ag Internal ventilation type disk brake
EP1881224A3 (en) * 2006-07-21 2009-08-05 Dr. Ing. h.c. F. Porsche Aktiengesellschaft Interior ventilated disc brake
US8220600B2 (en) 2006-07-21 2012-07-17 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Internally ventilated disc brake
CN101122312B (en) * 2006-07-21 2012-11-14 F.波尔希名誉工学博士公司 Interior ventilated disc brake
ITUB20155735A1 (en) * 2015-11-19 2017-05-19 Freni Brembo Spa Disc brake disk bell

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