FR2737266A1 - Friction clutch for final drives to be fitted at end of transmission chain employed in motor vehicles - provides flexibility between hub mounted onto driven shaft and flange rotatably mounted on hub, by moulded elastomer - Google Patents
Friction clutch for final drives to be fitted at end of transmission chain employed in motor vehicles - provides flexibility between hub mounted onto driven shaft and flange rotatably mounted on hub, by moulded elastomer Download PDFInfo
- Publication number
- FR2737266A1 FR2737266A1 FR9509092A FR9509092A FR2737266A1 FR 2737266 A1 FR2737266 A1 FR 2737266A1 FR 9509092 A FR9509092 A FR 9509092A FR 9509092 A FR9509092 A FR 9509092A FR 2737266 A1 FR2737266 A1 FR 2737266A1
- Authority
- FR
- France
- Prior art keywords
- hub
- flange
- radial projections
- driven shaft
- friction clutch
- 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
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
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/60—Clutching elements
- F16D13/64—Clutch-plates; Clutch-lamellae
- F16D13/68—Attachments of plates or lamellae to their supports
- F16D13/686—Attachments of plates or lamellae to their supports with one or more intermediate members made of rubber or like material transmitting torque from the linings to the hub
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- 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
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
- F16D3/64—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged between substantially-radial walls of both coupling parts
- F16D3/68—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged between substantially-radial walls of both coupling parts the elements being made of rubber or similar material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Friction d'embrayage et embrayage équipé d'une telle friction
L'invention concerne une friction d'embrayage du type comprenant un moyeu agencé pour être monté sur un arbre mené, un flasque monté à rotation limitée et rappel élastique sur ledit moyeu et un disque de friction solidaire dudit flasque et destiné à coopérer avec des plateaux de serrage solidaires d'un axe menant.Clutch friction and clutch equipped with such friction
The invention relates to a clutch friction of the type comprising a hub arranged to be mounted on a driven shaft, a flange mounted with limited rotation and elastic return on said hub and a friction disc integral with said flange and intended to cooperate with plates clamping integral with a leading axis.
Il est connu d'interposer entre le flasque et le disque des moyens compressibles en rotation, tels que des ressorts hélicoïdaux et/ou des blocs de caoutchouc en permettant un pivotement relatif entre ces deux pièces dans une plage angulaire limitée. Ces moyens sont destinés à filtrer les vibrations qui peuvent se produire dans l'ensemble de la transmission entre le moteur et la fin de la chaîne de transmission, par exemple les axes des roues menées d'un véhicule automobile, ces moyens étant comprimés en position d'embrayage (voir par exemple FR-A-2 541 404).It is known to interpose between the flange and the disc means compressible in rotation, such as helical springs and / or rubber blocks by allowing relative pivoting between these two parts within a limited angular range. These means are intended to filter the vibrations which can occur throughout the transmission between the engine and the end of the transmission chain, for example the axles of the driven wheels of a motor vehicle, these means being compressed in position. clutch (see for example FR-A-2 541 404).
Il a en outre été proposé, pour une forme de réalisation plus élaborée (voir par exemple FR-A-2 568 641), de désolidariser le flasque du moyeu en permettant une rotation limitée de l'un par rapport à l'autre, par exemple par des moyens d'engrenage à jeu.It has also been proposed, for a more elaborate embodiment (see for example FR-A-2 568 641), to separate the flange from the hub by allowing limited rotation of one relative to the other, by example by play gear means.
Dans ce dernier cas, il est nécessaire de prévoir, entre le moyeu et le flasque, des moyens de centrage, des moyens de maintien axial et des moyens de rappel élastique en position de repos. Même lorsque certains de ces moyens peuvent avoir deux des fonctions nécessaires, la construction d'ensemble reste extrêmement compliquée et onéreuse.In the latter case, it is necessary to provide, between the hub and the flange, centering means, axial holding means and elastic return means in the rest position. Even when some of these means may have two of the necessary functions, the overall construction remains extremely complicated and expensive.
La présente invention vise à simplifier considérablement la fabrication d'une friction d'embrayage du type précédent, en ce qui concerne la liaison entre le moyeu et le flasque.The present invention aims to considerably simplify the manufacture of a clutch friction of the above type, as regards the connection between the hub and the flange.
A cet effet, la friction d'embrayage selon l'invention est caractérisée en ce que le profil extérieur du moyeu est muni de saillies radiales, le flasque est muni d'une ouverture centrale comportant des saillies radiales disposées respectivement entre des saillies radiales du moyeu et un surmoulage en matériau élastiquement déformable est disposé entre la périphérie du moyeu et l'alésage du flasque en remplissant le vide laissé entre eux.To this end, the clutch friction according to the invention is characterized in that the external profile of the hub is provided with radial projections, the flange is provided with a central opening comprising radial projections disposed respectively between radial projections of the hub. and an overmolding of elastically deformable material is disposed between the periphery of the hub and the bore of the flange by filling the void left between them.
La friction selon l'invention permet d'obtenir, de manière sûre et durable, toutes les caractéristiques nécessaires pour la liaison entre le moyeu et le flasque. L'élasticité du matériau injecté entre les deux pièces permet une rotation relative de celles-ci, laquelle rotation est limitée par la butée d'une saillie du moyeu contre une saillie du flasque.The friction according to the invention makes it possible to obtain, in a safe and durable manner, all the characteristics necessary for the connection between the hub and the flange. The elasticity of the material injected between the two parts allows a relative rotation thereof, which rotation is limited by the abutment of a projection of the hub against a projection of the flange.
Ce matériau assure en outre le centrage du flasque par rapport au moyeu et son maintien axial.This material also ensures the centering of the flange relative to the hub and its axial retention.
La fabrication de la friction est extrêmement simple et économique puisqu'il suffit de disposer le moyeu et le flasque dans un moule entourant une partie axiale de la périphérie extérieure du moyeu et l'ouverture centrale du flasque, puis d'injecter dans la cavité du moule le matériau élastiquement déformable. Selon la nature de ce matériau, l'injection pourra être suivie d'un refroidissement, d'une vulcanisation et/ou de toute autre opération nécessaire pour obtenir une liaison présentant les caractéristiques requises.The manufacture of the friction is extremely simple and economical since it suffices to place the hub and the flange in a mold surrounding an axial part of the outer periphery of the hub and the central opening of the flange, then to inject into the cavity of the molds the elastically deformable material. Depending on the nature of this material, the injection may be followed by cooling, vulcanization and / or any other operation necessary to obtain a connection having the required characteristics.
Le choix du matériau, qui doit être injectable, sera également guidé par les caractéristiques de la liaison, en particulier le couple résistant assuré par le matériau, sa résistance à l'usure, à la température et à l'environnement d'utilisation. Dans la plupart des cas, on pourra utiliser un élastomère, chargé ou non chargé.The choice of material, which must be injectable, will also be guided by the characteristics of the connection, in particular the resistant torque provided by the material, its resistance to wear, to temperature and to the environment of use. In most cases, an elastomer, charged or uncharged, can be used.
De préférence, les saillies radiales du moyeu et les saillies radiales du flasque sont en forme de dents d'engrenage.Preferably, the radial projections of the hub and the radial projections of the flange are in the form of gear teeth.
Avantageusement, on peut prévoir que le moyeu et le flasque comportent des creusures en regard formant un volume rempli dudit matériau. On utilise ainsi la compressibilité du matériau sur un volume important en formant des amortisseurs élastiques.Advantageously, provision can be made for the hub and the flange to have recesses facing each other forming a volume filled with said material. The compressibility of the material is thus used over a large volume by forming elastic dampers.
L'invention sera bien comprise à la lecture de la description suivante faite en référence au dessin annexé dans lequel
la figure 1 est une vue schématique d'un exemple moyeu
flasque selon un exemple de réalisation de l'invention
en plan et coupe selon la ligne I-I de la figure 2 et,
la figure 2 est une vue en coupe selon la ligne II-II de
la figure 1.The invention will be clearly understood on reading the following description made with reference to the accompanying drawing in which
Figure 1 is a schematic view of an example hub
flange according to an exemplary embodiment of the invention
in plan and section along line II of FIG. 2 and,
Figure 2 is a sectional view along line II-II of
Figure 1.
L'ensemble représenté au dessin comprend un moyeu 1 muni d'un alésage 2 muni de cannelure 3 pour son montage sur un arbre mené (non représenté). Le moyeu 1 porte un flasque coaxial 4 sur lequel est monté un disque de friction (non représenté).The assembly shown in the drawing comprises a hub 1 provided with a bore 2 provided with a groove 3 for mounting on a driven shaft (not shown). The hub 1 carries a coaxial flange 4 on which is mounted a friction disc (not shown).
Le flasque 4 comporte une ouverture centrale munie de crans 5, tandis que le moyeu 1 est muni sur sa périphérie externe de saillies radiales en forme de crans d'accouplement 6. Les pas, largeurs et hauteurs des crans 5 et 6 sont telles que, dans l'exemple représenté, il se forme entre le moyeu 1 et le flasque 4 un entraînement par crans avec jeu.The flange 4 has a central opening provided with notches 5, while the hub 1 is provided on its outer periphery with radial projections in the form of coupling notches 6. The pitches, widths and heights of the notches 5 and 6 are such that, in the example shown, there is formed between the hub 1 and the flange 4 a drive by notches with play.
Dans l'exemple représenté, le moyeu 1 comporte deux creusures radiales 7 diamétralement opposées et le flasque 4 comporte deux creusures radiales 8 diamétralement opposées et en regard chacune d'une creusure 7, de manière à former deux espaces vides 9 diamétralement opposés entre les pièces 1 et 4.In the example shown, the hub 1 comprises two radial recesses 7 diametrically opposite and the flange 4 comprises two radial recesses 8 diametrically opposite and facing each of a recess 7, so as to form two empty spaces 9 diametrically opposite between the parts 1 and 4.
Le moyeu 1 et le flasque 4 sont reliés par une portion moulée 10 en un matériau élastiquement déformable qui a été obtenue par surmoulage. La matière de la portion 10 sépare les dents 5 et 6 en permettant ainsi une rotation limitée et un rappel élastique des deux pièces 1 et 4, tout en les maintenant axialement et concentriquement. Le matériau emplissant les espaces vides 9 constitue un amortisseur, en particulier des vibrations. The hub 1 and the flange 4 are connected by a molded portion 10 made of an elastically deformable material which has been obtained by overmolding. The material of the portion 10 separates the teeth 5 and 6, thus allowing limited rotation and an elastic return of the two parts 1 and 4, while maintaining them axially and concentrically. The material filling the empty spaces 9 constitutes a damper, in particular of vibrations.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9509092A FR2737266B1 (en) | 1995-07-26 | 1995-07-26 | CLUTCH FRICTION AND CLUTCH EQUIPPED WITH SUCH A FRICTION |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9509092A FR2737266B1 (en) | 1995-07-26 | 1995-07-26 | CLUTCH FRICTION AND CLUTCH EQUIPPED WITH SUCH A FRICTION |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2737266A1 true FR2737266A1 (en) | 1997-01-31 |
| FR2737266B1 FR2737266B1 (en) | 1997-10-31 |
Family
ID=9481406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9509092A Expired - Fee Related FR2737266B1 (en) | 1995-07-26 | 1995-07-26 | CLUTCH FRICTION AND CLUTCH EQUIPPED WITH SUCH A FRICTION |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2737266B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2012034A3 (en) * | 2007-07-02 | 2010-10-20 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Clutch device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1976063A (en) * | 1931-12-16 | 1934-10-09 | Borg & Beck Co | Friction clutch |
| GB444656A (en) * | 1934-06-26 | 1936-03-26 | William Wilson Hamill | Improvements in and connected with couplings |
| FR1416203A (en) * | 1964-11-30 | 1965-10-29 | Beteiligungs & Patentverw Gmbh | Elastically movable coupling |
| DE3411343A1 (en) * | 1984-03-28 | 1985-10-03 | Phoenix Ag, 2100 Hamburg | Elastic rotating bearing |
| GB2190979A (en) * | 1986-05-21 | 1987-12-02 | Ludwig Maier | Coupling |
| DE3822637A1 (en) * | 1988-07-05 | 1990-01-18 | Daimler Benz Ag | Elastic shaft/hub connection secure against twisting |
-
1995
- 1995-07-26 FR FR9509092A patent/FR2737266B1/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1976063A (en) * | 1931-12-16 | 1934-10-09 | Borg & Beck Co | Friction clutch |
| GB444656A (en) * | 1934-06-26 | 1936-03-26 | William Wilson Hamill | Improvements in and connected with couplings |
| FR1416203A (en) * | 1964-11-30 | 1965-10-29 | Beteiligungs & Patentverw Gmbh | Elastically movable coupling |
| DE3411343A1 (en) * | 1984-03-28 | 1985-10-03 | Phoenix Ag, 2100 Hamburg | Elastic rotating bearing |
| GB2190979A (en) * | 1986-05-21 | 1987-12-02 | Ludwig Maier | Coupling |
| DE3822637A1 (en) * | 1988-07-05 | 1990-01-18 | Daimler Benz Ag | Elastic shaft/hub connection secure against twisting |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2012034A3 (en) * | 2007-07-02 | 2010-10-20 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Clutch device |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2737266B1 (en) | 1997-10-31 |
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|---|---|---|---|
| CL | Concession to grant licences | ||
| CL | Concession to grant licences | ||
| TP | Transmission of property | ||
| ST | Notification of lapse |
Effective date: 20090331 |