WO2017216220A1 - Damping device for motor vehicle clutch and clutch comprising such a device - Google Patents

Damping device for motor vehicle clutch and clutch comprising such a device Download PDF

Info

Publication number
WO2017216220A1
WO2017216220A1 PCT/EP2017/064529 EP2017064529W WO2017216220A1 WO 2017216220 A1 WO2017216220 A1 WO 2017216220A1 EP 2017064529 W EP2017064529 W EP 2017064529W WO 2017216220 A1 WO2017216220 A1 WO 2017216220A1
Authority
WO
WIPO (PCT)
Prior art keywords
blinders
washer
orifices
flat
extensions
Prior art date
Application number
PCT/EP2017/064529
Other languages
French (fr)
Inventor
Olivier Marechal
Yulin Xu
Dominique Dael
Didier BAGARD
Jean-Luc WACQUIER
Original Assignee
Valeo Embrayages
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 Valeo Embrayages filed Critical Valeo Embrayages
Priority to DE112017003000.5T priority Critical patent/DE112017003000T5/en
Priority to KR1020187036408A priority patent/KR20190017798A/en
Publication of WO2017216220A1 publication Critical patent/WO2017216220A1/en

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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
    • F16F15/123—Wound springs
    • F16F15/12313—Wound springs characterised by the dimension or shape of spring-containing windows
    • 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
    • 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
    • F16D2013/642—Clutch-plates; Clutch-lamellae with resilient attachment of frictions rings or linings to their supporting discs or plates for allowing limited axial displacement of these rings or linings
    • 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
    • F16D2300/00—Special features for couplings or clutches
    • F16D2300/22—Vibration damping

Definitions

  • Damping device for a motor vehicle clutch and clutch comprising such a device
  • the invention relates to a damping device for a friction clutch mechanism of a motor vehicle and a clutch comprising such a device.
  • the invention relates to an improvement of the guide ring of such a damping device.
  • Friction clutches have the function of transmitting a torque between an input rotary member and a rotary output member, by pinching the friction between pressure plates and reaction linked in rotation with a flywheel.
  • the invention is more particularly concerned with friction clutches of the type comprising, in particular, a central hub connected to the input shaft of the gearbox and supporting a progressivity disk which carries friction linings.
  • This progressivity disc is sometimes made in the form of a set of blades fixed radially, via fixing means, for example via rivets, in orifices made on peripheral flat areas of at least one guide ring provided with a helical spring damper for filtering vibrations from the engine.
  • the springs are housed in windows formed through the washer and which extend in a substantially orthoradial direction. To ensure the setting and guiding springs, the windows are delimited, on their outer edge, by projecting blinkers from partially covering the cylindrical envelope of these springs on one of the faces of the washer.
  • the dimensions and the application diameter of the springs are often very important, which leads to widen these blinkers and offset radially outwardly.
  • the blinkers are then locally in the immediate vicinity of the receiving ports of the fastening means, which with the blade attachment tabs, are then hindered by their too close presence.
  • the fastening means are formed by rivets
  • the blinkers are then locally in the immediate vicinity of the rivet receiving orifices, whose enlarged heads, like the blade mounting lugs, are then hindered by their too close presence.
  • the invention aims to remedy this technical problem by modifying the structure of the guide ring to arrange the flat blade fixing area optimally and without harmful interference during assembly.
  • a damping device comprising a guide ring provided with helical coil receiving windows bounded on their outer edge by blinkers and extended beyond by peripheral flat areas for progressivity blade support provided with orifices for the reception of fixing means, characterized in that, in the intermediate space between the blinkers and the orifices, said flat zones have radial extensions entering the wall outer eyelets, beyond their line of connection to said washer.
  • the fastening means are formed by rivets each having an enlarged head and a rod extending from the head.
  • said extensions of the planar zones are delimited in the wall of the blinkers by scrapes oriented on the receiving holes of the rivets.
  • the remains are made by local deformation of the wall of the blinkers.
  • these remains are made by stamping blinkers.
  • the remains have a profile at least partially conical.
  • the angle at the top of the remains is between 0 ° and 30 °.
  • the extensions correspond, in the plane of the washer, to sectors centered on the orifices of the fastening means whose angular length is between 30 ° and 150 °.
  • the extensions beyond the blinker connection line represent between 5 and 30% increase in the initial surface of the planar zones.
  • the face of the washer opposite to the face carrying the blinkers remains flat to the right extensions of flat areas.
  • the helical coil receiving windows are delimited by the blinkers on their radially outer edge, the reception windows being extended, radially outwards, by the peripheral planar blade support surfaces of progressivity, and orifices are arranged radially outside the blinkers.
  • the windows are arranged between the orifices and the axis of rotation of the washer.
  • Another object of the invention is a clutch for a motor vehicle comprising a damping device as defined above.
  • the damping device of the invention facilitates the manufacturing process and assembly of the components of the damper and, in particular, the attachment of progressivity blades by releasing sufficient space for the installation of the fastening means.
  • the stiffness of the guide washer is reinforced by the presence of the remains on the blinkers.
  • FIG. 1 represents a partial exploded perspective view of a friction clutch equipped with a first embodiment of the damper of the invention.
  • Figure 2 is a top view of the clutch of Figure 1 in the assembled position.
  • Figure 3 is a bottom view of the clutch of Figure 1 in the assembled position.
  • FIGS 4A and 4B are detail views, respectively, from above and in perspective of the local modifications made to the guide washer according to the invention.
  • the friction clutch mechanisms comprise a damping device whose function is to filter the vibrations coming from the engine.
  • This device comprises, in a traditional way, symmetrical components of revolution, consisting, in particular, of a central hub whose body is connected to the input shaft of a gearbox (components not shown) and supporting a Progressive disc D which carries friction linings (Figure 1).
  • This progressive disk D consists here of two sets of blades P mounted on either side of the guide ring 1 of a coil spring damper (not shown).
  • the guide ring 1 is mounted on a hub (not shown) engaged in the central hole M of axis X and is provided with windows 10 for receiving coil springs compresion.
  • the zones 12 are provided with orifices 120 formed in ears 121 formed radially projecting around the periphery of the washer 1 and which are intended to receive rivets (not shown) ensuring the attachment of the blades P through corresponding holes located in their fastening brackets f.
  • the profile of the ears 121 is adapted to that of the legs f.
  • connection line 111 of the blinkers 11 to the plane of the washer 1 is curvilinear and at least partially circular.
  • This connecting line materializes the limit of the bending zone of the sheet of the washer 1 at the inner edge of the windows which is intended to form the blinkers.
  • the invention aims to improve this damping device by modifying the structure of the guide ring 1 and, more specifically, the outer profile of the blinkers 11 windows 10 receiving the compression springs.
  • the aim of the invention is to find means for extending the flat areas 12 so as to provide a sufficient surface to allow the necessary deflection of the legs. Fasteners f and rivets when positioning and installing P blades.
  • the remains 112 are made by local deformation of the outer wall of the blinkers 11, preferably by stamping the sheet during manufacture of the guide ring 1 or during a subsequent finishing step.
  • These bodies have a profile at least partially conical or cylindro-conical resulting from the shape of the stamping tool and whose apex angle varies between 0 ° and 30 °.
  • the extensions 122 correspond in the plane of the washer 1 to sectors centered on the orifices 120 whose angular length is between 30 ° and 150 °. These extensions are located in the axis of the ears 121 (see Figure 4A) and delimit, with the latter, substantially circular locations whose radius is greater than that of the legs f of the progressivity blades P, as shown in Figure 2 .
  • Each of the extensions 122 which extends beyond the connection line 111 of the blinkers represents between 5 and 30% of the initial surface of the corresponding flat area 12.

Abstract

The invention relates to: a damping device for a friction clutch of a motor vehicle comprising a guide washer (1) provided with openings (10) for receiving helical springs defined on the outer edge thereof by side shields (11) and extended beyond same by peripheral planar areas (12) for supporting progressive blades (P) provided with openings (120) for receiving attachment rivets, characterised in that, in the intermediate space located between the side shields (11) and the openings (120), said planar areas (12) have a radial extension (122) fitting into the outer wall of said side shields, beyond the connection line (111) thereof to said washer (1); and a friction clutch provided with such a device.

Description

Dispositif d'amortissement pour embrayage de véhicule automobile et embrayage comprenant un tel dispositif  Damping device for a motor vehicle clutch and clutch comprising such a device
L'invention se rapporte à un dispositif d'amortissement pour mécanisme d'embrayage à friction de véhicule automobile et un embrayage comprenant un tel dispositif. The invention relates to a damping device for a friction clutch mechanism of a motor vehicle and a clutch comprising such a device.
Plus précisément, l'invention concerne un perfectionnement de la rondelle de guidage d'un tel dispositif amortisseur. EXPOSÉ DE L'INVENTION More specifically, the invention relates to an improvement of the guide ring of such a damping device. STATEMENT OF THE INVENTION
[0001] Les embrayages à friction ont pour fonction de transmettre un couple entre un élément rotatif d'entrée et un élément rotatif de sortie, par pincement de la friction entre des plateaux de pression et de réaction liés en rotation avec un volant moteur. L'invention s'intéresse plus particulièrement aux embrayages à friction du type comprenant, notamment, un moyeu central lié à l'arbre d'entrée de la boîte de vitesses et supportant un disque de progressivité qui porte des garnitures de friction.  Friction clutches have the function of transmitting a torque between an input rotary member and a rotary output member, by pinching the friction between pressure plates and reaction linked in rotation with a flywheel. The invention is more particularly concerned with friction clutches of the type comprising, in particular, a central hub connected to the input shaft of the gearbox and supporting a progressivity disk which carries friction linings.
Ce disque de progressivité est parfois réalisé sous forme d'un jeu de pales fixées radialement, via des moyens de fixation, par exemple via des rivets, dans des orifices pratiqués sur des zones planes périphériques d'au moins une rondelle de guidage pourvue d'un amortisseur à ressorts hélicoïdaux destiné à filtrer les vibrations en provenance du moteur. This progressivity disc is sometimes made in the form of a set of blades fixed radially, via fixing means, for example via rivets, in orifices made on peripheral flat areas of at least one guide ring provided with a helical spring damper for filtering vibrations from the engine.
Les ressorts sont logés dans des fenêtres ménagées au travers de la rondelle et qui s'étendent selon une direction sensiblement orthoradiale. Afin d'assurer le calage et le guidage des ressorts, les fenêtres sont délimitées, sur leur bord extérieur, par des œillères en saillie venant recouvrir partiellement l'enveloppe cylindrique de ces ressorts sur une des faces de la rondelle. [0002] Cependant, afin de pouvoir passer un couple moteur très fort, les dimensions et le diamètre d'application des ressorts sont souvent très importants ce qui conduit à élargir ces œillères et à les décaler radialement vers l'extérieur. The springs are housed in windows formed through the washer and which extend in a substantially orthoradial direction. To ensure the setting and guiding springs, the windows are delimited, on their outer edge, by projecting blinkers from partially covering the cylindrical envelope of these springs on one of the faces of the washer. However, in order to be able to spend a very strong engine torque, the dimensions and the application diameter of the springs are often very important, which leads to widen these blinkers and offset radially outwardly.
Dans ces conditions, les œillères se trouvent alors localement à proximité immédiate des orifices de réception des moyens de fixation, qui avec les pattes de fixation des pales, sont alors gênés par leur trop proche présence. Notamment, lorsque les moyens de fixation sont formés par des rivets, les œillères se trouvent alors localement à proximité immédiate des orifices de réception des rivets, dont les têtes élargies, tout comme les pattes de fixation des pales, sont alors gênées par leur trop proche présence. Under these conditions, the blinkers are then locally in the immediate vicinity of the receiving ports of the fastening means, which with the blade attachment tabs, are then hindered by their too close presence. In particular, when the fastening means are formed by rivets, the blinkers are then locally in the immediate vicinity of the rivet receiving orifices, whose enlarged heads, like the blade mounting lugs, are then hindered by their too close presence.
[0003] Ce problème est d'autant plus critique que le diamètre extérieur de la rondelle de guidage est limité par le diamètre intérieur normalisé des garnitures de friction et que, par conséquent, il n'est pas possible d'étendre la zone de fixation vers l'extérieur. [0004] L'invention vise à remédier à ce problème technique en modifiant la structure de la rondelle de guidage pour aménager la zone plane de fixation des pales de façon optimale et sans intérférence néfaste lors du montage. This problem is even more critical that the outer diameter of the guide ring is limited by the normalized internal diameter of the friction liners and that, therefore, it is not possible to extend the fixing area outwards. The invention aims to remedy this technical problem by modifying the structure of the guide ring to arrange the flat blade fixing area optimally and without harmful interference during assembly.
[0005] Ce but est atteint, selon l'invention, au moyen d'un dispositif d'amortissement comprenant une rondelle de guidage pourvue de fenêtres de réception de ressorts hélicoïdaux délimitées sur leur bord extérieur par des œillères et prolongées au-delà par des zones planes périphériques de support de pales de progressivité pourvues d'orifices pour la réception de moyens de fixation, caractérisé en ce que, dans l'espace intercalaire situé entre les œillères et les orifices, lesdites zones planes présentent des extensions radiales rentrant dans la paroi extérieure des œillères, au-delà de leur ligne de raccordement à ladite rondelle. This object is achieved, according to the invention, by means of a damping device comprising a guide ring provided with helical coil receiving windows bounded on their outer edge by blinkers and extended beyond by peripheral flat areas for progressivity blade support provided with orifices for the reception of fixing means, characterized in that, in the intermediate space between the blinkers and the orifices, said flat zones have radial extensions entering the wall outer eyelets, beyond their line of connection to said washer.
[0006] Dans un exemple, les moyens de fixation sont formés par des rivets comportant chacun une tête élargie et une tige s'étendant à partir de la tête. [0007] Selon une variante avantageuse, lesdites extensions des zones planes sont délimitées dans la paroi des œillères par des dépouilles axées sur les orifices de réception des rivets. In one example, the fastening means are formed by rivets each having an enlarged head and a rod extending from the head. According to an advantageous variant, said extensions of the planar zones are delimited in the wall of the blinkers by scrapes oriented on the receiving holes of the rivets.
[0008] Selon une caractéristique avantageuse, les dépouilles sont réalisées par déformation locale de la paroi des œillères. According to an advantageous characteristic, the remains are made by local deformation of the wall of the blinkers.
[0009] De préférence, ces dépouilles sont réalisées par emboutissage des œillères. Preferably, these remains are made by stamping blinkers.
[0010] Selon encore une autre variante, les dépouilles ont un profil au moins partiellement conique. According to yet another variant, the remains have a profile at least partially conical.
[0011] Selon une autre caractéristique, l'angle au sommet des dépouilles est compris entre 0° et 30°. According to another feature, the angle at the top of the remains is between 0 ° and 30 °.
[0012] Selon encore une autre caractéristique, les extensions correspondent, dans le plan de la rondelle, à des secteurs centrés sur les orifices des moyens de fixation dont la longueur angulaire est comprise entre 30° et 150°. According to yet another characteristic, the extensions correspond, in the plane of the washer, to sectors centered on the orifices of the fastening means whose angular length is between 30 ° and 150 °.
[0013] Selon une caractéristique spécifique, les extensions au-delà de la ligne de raccordement des œillères représentent entre 5 et 30 % d'augmentation de la surface initiale des zones planes. According to a specific characteristic, the extensions beyond the blinker connection line represent between 5 and 30% increase in the initial surface of the planar zones.
[0014] Avantageusement, la face de la rondelle opposée à la face portant les œillères reste plate au droit des extensions des zones planes. Advantageously, the face of the washer opposite to the face carrying the blinkers remains flat to the right extensions of flat areas.
[0015] Avantageusement, les fenêtres de réception de ressorts hélicoïdaux sont délimitées par les œillères sur leur bord radialement extérieur, les fenêtres de réception étant prolongées, radialement à l'extérieur, par les zones planes périphériques de support de pales de progressivité, et les orifices sont agencés radialement à l'extérieur des œillères. Autrement dit, les fenêtres sont agencées entre les orifices et l'axe de rotation de la rondelle. [0016] Un autre objet de l'invention est un embrayage pour véhicule automobile comprenant un dispositif d'amortissement tel que défini précédemment. [0017] Le dispositif amortisseur de l'invention permet de faciliter le procédé de fabrication et d'assemblage des composants de l'amortisseur et, notamment, la fixation des pales de progressivité en libérant un espace suffisant pour la pose des moyens de fixation. Par ailleurs, la raideur de la rondelle de guidage est renforcée par la présence des dépouilles sur les œillères. Advantageously, the helical coil receiving windows are delimited by the blinkers on their radially outer edge, the reception windows being extended, radially outwards, by the peripheral planar blade support surfaces of progressivity, and orifices are arranged radially outside the blinkers. In other words, the windows are arranged between the orifices and the axis of rotation of the washer. Another object of the invention is a clutch for a motor vehicle comprising a damping device as defined above. The damping device of the invention facilitates the manufacturing process and assembly of the components of the damper and, in particular, the attachment of progressivity blades by releasing sufficient space for the installation of the fastening means. Moreover, the stiffness of the guide washer is reinforced by the presence of the remains on the blinkers.
BREVE DESCRIPTION DES FIGURES BRIEF DESCRIPTION OF THE FIGURES
[0018] D'autres caractéristiques et avantages de l'invention ressortiront à la lecture de la description qui va suivre, en référence aux figures annexées et détaillées ci-après.  Other features and advantages of the invention will become apparent from reading the description which follows, with reference to the accompanying figures and detailed below.
La figure 1 représente une vue partielle en perspective éclatée d'un embrayage à friction équipé d'un premier mode de réalisation de l'amortisseur de l'invention. FIG. 1 represents a partial exploded perspective view of a friction clutch equipped with a first embodiment of the damper of the invention.
La figure 2 est une vue de dessus du l'embrayage de la figure 1 en position assemblée. Figure 2 is a top view of the clutch of Figure 1 in the assembled position.
La figure 3 est une vue de dessous du l'embrayage de la figure 1 en position assemblée. Figure 3 is a bottom view of the clutch of Figure 1 in the assembled position.
Les figures 4A et 4B sont des vues de détail, respectivement, de dessus et en perspective des modifications locales apportées à la rondelle de guidage selon l'invention. Figures 4A and 4B are detail views, respectively, from above and in perspective of the local modifications made to the guide washer according to the invention.
Pour plus de clarté, les éléments identiques ou similaires sont repérés par des signes de référence identiques sur l'ensemble des figures. For the sake of clarity, identical or similar elements are marked with identical reference signs throughout the figures.
DESCRIPTION DÉTAILLÉE DE MODES DE REALISATION DETAILED DESCRIPTION OF EMBODIMENTS
[0019] Naturellement, les modes de réalisation illustrés par les figures présentées ci-dessus et décrits ci-après ne sont donnés qu'à titre d'exemples non limitatif. Il est explicitement prévu que l'on puisse combiner entre eux ces différents modes pour en proposer d'autres. [0020] De manière traditionnelle les mécanismes d'embrayage à friction comprennent un dispositif d'amortissement qui a pour fonction de filtrer les vibrations en provenance du moteur. Of course, the embodiments illustrated by the figures presented above and described below are given by way of non-limiting examples. It is explicitly planned that we can combine these different modes to propose others. [0020] Conventionally, the friction clutch mechanisms comprise a damping device whose function is to filter the vibrations coming from the engine.
Ce dispositif comprend, de manière traditionnellle, des composants à symétrie de révolution, constitués, notamment, d'un moyeu central dont le corps est lié à l'arbre d'entrée d'une boîte de vitesses (composants non représentés) et supportant un disque de progressivité D qui porte des garnitures de friction (figure 1). This device comprises, in a traditional way, symmetrical components of revolution, consisting, in particular, of a central hub whose body is connected to the input shaft of a gearbox (components not shown) and supporting a Progressive disc D which carries friction linings (Figure 1).
[0021] Ce disque de progressivité D est constitué ici de deux jeux de pales P montées de part et d'autre de la rondelle de guidage 1 d'un amortisseur à ressorts hélicoïdaux (non représentés). This progressive disk D consists here of two sets of blades P mounted on either side of the guide ring 1 of a coil spring damper (not shown).
[0022] La rondelle de guidage 1 est montée sur un moyeu (non représenté) engagé dans l'orifice central M d'axe X et est pourvue de fenêtres 10 de réception des ressorts hélicoïdaux de compresion. The guide ring 1 is mounted on a hub (not shown) engaged in the central hole M of axis X and is provided with windows 10 for receiving coil springs compresion.
[0023] Ces fenêtres sont délimitées, sur leur bord extérieur, par des œillères 11 et se prolongent au-delà par des zones planes périphériques 12 de support des pales de progressivité P qui sont plus particulièrement apparentes sur les figures 4A et 4B. These windows are delimited, on their outer edge, by blinkers 11 and extend beyond by peripheral plane areas 12 supporting the progressivity blades P which are more particularly apparent in Figures 4A and 4B.
[0024] Les zones 12 sont pourvues d'orifices 120 ménagés dans des oreilles 121 réalisées en saillie radiale sur le pourtour de la rondelle 1 et qui sont destinés à recevoir des rivets (non représentés) assurant la fixation des pales P au travers d'orifices correspondants situés dans leurs pattes de fixation f. The zones 12 are provided with orifices 120 formed in ears 121 formed radially projecting around the periphery of the washer 1 and which are intended to receive rivets (not shown) ensuring the attachment of the blades P through corresponding holes located in their fastening brackets f.
A cet effet, le profil des oreilles 121 est adapté à celui des pattes f. For this purpose, the profile of the ears 121 is adapted to that of the legs f.
[0025] Comme illustré par les figures, la ligne de raccordement 111 des œillères 11 au plan de la rondelle 1 est curviligne et au moins partiellement circulaire. Cette ligne de raccordement matérialise la limite de la zone de pliage de la tôle de la rondelle 1 au niveau du rebord intérieur des fenêtres qui est destinée à former les œillères. [0026] L'invention vise à perfectionner ce dispositif d'amortissement en modifiant la structure de la rondelle de guidage 1 et, plus précisément, le profil extérieur des œillères 11 des fenêtres 10 de réception des ressorts de compression. As illustrated by the figures, the connection line 111 of the blinkers 11 to the plane of the washer 1 is curvilinear and at least partially circular. This connecting line materializes the limit of the bending zone of the sheet of the washer 1 at the inner edge of the windows which is intended to form the blinkers. The invention aims to improve this damping device by modifying the structure of the guide ring 1 and, more specifically, the outer profile of the blinkers 11 windows 10 receiving the compression springs.
Les modifications susceptibles d'être apportées aux composants du dispositif d'amortissement prises isolément ou en combinaison, vont être décrites de façon détaillée ci-après. The modifications that may be made to the components of the damping device, taken alone or in combination, will be described in detail hereinafter.
[0027] Dans la pratique, il s'est avéré que l'espace intercalaire entre les œillères 11 et les orifices 120 est souvent trop restreint et ne permet pas d'effectuer un positionnement et un rivetage aisés et précis des pales P sur les zones planes 12 qui leur sont dédiées. In practice, it has been found that the spacing between the blinkers 11 and the orifices 120 is often too small and does not allow to perform a positioning and riveting easy and precise P blades on the zones. planes 12 dedicated to them.
Devant cette difficulté qui se trouve accentuée lorsqu'il s'agit d'utiliser de gros ressorts, l'invention vise à rechercher des moyens permettant d'étendre les zones planes 12 de façon à offrir une surface suffisante pour autoriser le débattement nécessaire des pattes de fixation f et des rivets lors du positionnement et de la pose des pales P. In view of this difficulty, which is accentuated when large springs are used, the aim of the invention is to find means for extending the flat areas 12 so as to provide a sufficient surface to allow the necessary deflection of the legs. Fasteners f and rivets when positioning and installing P blades.
[0028] Il est ainsi prévu, selon l'invention, de créer des extensions radiales 122 dans l'espace intercalaire plat de la rondelle 1 situé entre les œillères 11 et les orifices 120. It is thus provided, according to the invention, to create radial extensions 122 in the flat intermediate space of the washer 1 located between the blinkers 11 and the orifices 120.
[0029] Ces extensions 122 des zones planes 12 sont obtenues grâce à des dépouilles 112 réalisées dans la paroi extérieure des œillères 11 et rentrant au-delà de leur ligne de raccordement 111 au plan de la rondelle 1. Les extensions 122 sont axées sur les orifices 120 de réception des rivets, comme illustré par les figures 4A et 4B. These extensions 122 of the flat areas 12 are obtained thanks to the remains 112 made in the outer wall of the blinkers 11 and returning beyond their connecting line 111 to the plane of the washer 1. The extensions 122 are focused on the orifices 120 for receiving the rivets, as illustrated by FIGS. 4A and 4B.
[0030] Les dépouilles 112 sont réalisées par déformation locale de la paroi extérieure des œillères 11, de préférence, par emboutissage de la tôle lors de la fabrication de la rondelle de guidage 1 ou lors d'une étape ultérieure de finition. [0031] Ces dépouilles ont un profil au moins partiellement conique ou cylindro- conique résultant de la forme de l'outil d'emboutissage et dont l'angle au sommet varie entre 0° et 30°. The remains 112 are made by local deformation of the outer wall of the blinkers 11, preferably by stamping the sheet during manufacture of the guide ring 1 or during a subsequent finishing step. These bodies have a profile at least partially conical or cylindro-conical resulting from the shape of the stamping tool and whose apex angle varies between 0 ° and 30 °.
[0032] Les extensions 122 correspondent, dans le plan de la rondelle 1, à des secteurs centrés sur les orifices 120 dont la longueur angulaire est comprise entre 30° et 150°. Ces extensions sont donc situées dans l'axe des oreilles 121 (voir figure 4A) et délimitent, avec ces dernières, des emplacements sensiblement circulaires dont le rayon est supérieur à celui des pattes f des pales de progressivité P, comme illustré par la figure 2. The extensions 122 correspond in the plane of the washer 1 to sectors centered on the orifices 120 whose angular length is between 30 ° and 150 °. These extensions are located in the axis of the ears 121 (see Figure 4A) and delimit, with the latter, substantially circular locations whose radius is greater than that of the legs f of the progressivity blades P, as shown in Figure 2 .
[0033] Chacune des extensions 122 qui s'étend au-delà de la ligne de raccordement 111 des œillères représente entre 5 et 30 % de la surface initiale de la zone plane 12 correspondante. Each of the extensions 122 which extends beyond the connection line 111 of the blinkers represents between 5 and 30% of the initial surface of the corresponding flat area 12.
[0034] Il est toutefois prévu que la face de la rondelle 1 opposée à la face portant les œillères 11 reste plate au droit des extensions 122 des zones planes. However, it is expected that the face of the washer 1 opposite the face carrying the blinkers 11 remains flat to the right extensions 122 flat areas.

Claims

Revendications Claims
1 . Dispositif d'amortissement pour embrayage à friction de véhicule automobile comprenant une rondelle de guidage (1) pourvue de fenêtres (10) de réception de ressorts hélicoïdaux délimitées sur leur bord extérieur par des œillères (11) et prolongées au-delà par des zones planes périphériques (12) de support de pales de progressivité (P) pourvues d'orifices (120) pour la réception de moyens de fixation, caractérisé en ce que, dans l'espace intercalaire situé entre les œillères (11) et les orifices (120), lesdites zones planes (12) présentent des extensions radiales (122) rentrant dans la paroi extérieure des œillères, au-delà de leur ligne de raccordement (111) à ladite rondelle (1). 1. Damping device for a motor vehicle friction clutch comprising a guide washer (1) provided with windows (10) for receiving helical springs delimited on their outer edge by blinders (11) and extended beyond by flat areas peripherals (12) for supporting progressiveness blades (P) provided with orifices (120) for receiving fixing means, characterized in that, in the intermediate space located between the blinders (11) and the orifices (120 ), said flat zones (12) have radial extensions (122) entering into the outer wall of the blinders, beyond their connection line (111) to said washer (1).
2. Dispositif selon la revendication 1, caractérisé en ce que lesdites extensions (122) des zones planes (12) sont délimitées dans la paroi des œillères (11) par des dépouilles (112) axées sur les orifices (120) de réception des moyens de fixation. 2. Device according to claim 1, characterized in that said extensions (122) of the flat zones (12) are delimited in the wall of the blinders (11) by undercuts (112) centered on the orifices (120) for receiving the means of fixation.
3. Dispositif selon la revendication 2, caractérisé en ce que lesdites dépouilles (112) sont réalisées par déformation locale de la paroi des œillères (11). 3. Device according to claim 2, characterized in that said undercuts (112) are produced by local deformation of the wall of the blinders (11).
4. Dispositif selon la revendication précédente, caractérisé en ce que lesdites dépouilles (112) sont réalisées par emboutissage des œillères (11). 4. Device according to the preceding claim, characterized in that said undercuts (112) are produced by stamping the blinders (11).
5. Dispositif selon l'une des revendications précédentes, caractérisé en ce que lesdites dépouilles (112) ont un profil au moins partiellement conique. 5. Device according to one of the preceding claims, characterized in that said undercuts (112) have an at least partially conical profile.
6. Dispositif selon la revendication précédente, caractérisé en ce que l'angle au sommet des dépouilles (112) est compris entre 0° et 30°. 6. Device according to the preceding claim, characterized in that the angle at the top of the undercuts (112) is between 0° and 30°.
7. Dispositif selon l'une des revendications précédentes, caractérisé en ce que lesdites extensions (122) des zones planes (12) correspondent, dans le plan de la rondelle (1), à des secteurs centrés sur les orifices (120) des moyens de fixation dont la longueur angulaire est comprise entre 30 ° et 150°. 7. Device according to one of the preceding claims, characterized in that said extensions (122) of the flat zones (12) correspond, in the plane of the washer (1), to sectors centered on the orifices (120) of the means fixing whose angular length is between 30° and 150°.
8. Dispositif selon l'une des revendications précédentes, caractérisé en ce que chaque extension (122) au-delà de la ligne de raccordement (111) des œillères (11) au plan de la rondelle (1) représente entre 5 et 30 % de la surface initiale de la zone plane correspondante. 8. Device according to one of the preceding claims, characterized in that each extension (122) beyond the connection line (111) of the blinkers (11) to the plane of the washer (1) represents between 5 and 30% of the initial surface of the corresponding flat area.
9. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la face de ladite rondelle (1) opposée à la face portant les œillères (11) reste plate au droit desdites extensions (122) des zones planes (12). 9. Device according to one of the preceding claims, characterized in that the face of said washer (1) opposite the face carrying the blinders (11) remains flat to the right of said extensions (122) of the flat zones (12).
10. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les fenêtres (10) de réception de ressorts hélicoïdaux sont délimitées par les œillères (11) sur leur bord radialement extérieur, les fenêtres de réception étant prolongées, radialement à l'extérieur, par les zones planes périphériques (12) de support de pales de progressivité (P), et les orifices (120) sont agencés radialement à l'extérieur des œillères (11). 10. Device according to one of the preceding claims, characterized in that the windows (10) for receiving helical springs are delimited by the blinkers (11) on their radially outer edge, the reception windows being extended, radially to the exterior, by the peripheral flat zones (12) supporting progressive blades (P), and the orifices (120) are arranged radially outside the blinders (11).
1 1 . Embrayage à friction équipé d'un dispositif d'amortissement selon l'une des revendications précédentes. 1 1 . Friction clutch equipped with a damping device according to one of the preceding claims.
PCT/EP2017/064529 2016-06-16 2017-06-14 Damping device for motor vehicle clutch and clutch comprising such a device WO2017216220A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112017003000.5T DE112017003000T5 (en) 2016-06-16 2017-06-14 Damping device for a motor vehicle clutch and clutch, comprising such a device
KR1020187036408A KR20190017798A (en) 2016-06-16 2017-06-14 Clutch including damping device and damping device for automotive clutches

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1655611A FR3052834B1 (en) 2016-06-16 2016-06-16 DRAWING DEVICE FOR CLUTCH OF MOTOR VEHICLE AND CLUTCH COMPRISING SUCH A DEVICE
FR1655611 2016-06-16

Publications (1)

Publication Number Publication Date
WO2017216220A1 true WO2017216220A1 (en) 2017-12-21

Family

ID=57590560

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/064529 WO2017216220A1 (en) 2016-06-16 2017-06-14 Damping device for motor vehicle clutch and clutch comprising such a device

Country Status (4)

Country Link
KR (1) KR20190017798A (en)
DE (1) DE112017003000T5 (en)
FR (1) FR3052834B1 (en)
WO (1) WO2017216220A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2608237A1 (en) * 1986-12-16 1988-06-17 Dana Corp TORQUE TRANSMISSION ELEMENT FOR CLUTCH DISC ASSEMBLY
FR2757587A1 (en) * 1996-12-23 1998-06-26 Valeo IMPROVED TORSION SHOCK ABSORBER AND SHOCK ABSORBER DEVICE HAVING SUCH A TORSION SHOCK ABSORBER
FR2758864A1 (en) * 1997-01-28 1998-07-31 Valeo Torsion damper e.g. for motor vehicle friction clutch
DE102010054290A1 (en) * 2009-12-22 2011-06-30 Schaeffler Technologies GmbH & Co. KG, 91074 Damping device for damping vibrations, particularly torsional vibrations, has spring window, in which spring element is accommodated, where spring window has release opening, which is arranged at distance to spring window

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2608237A1 (en) * 1986-12-16 1988-06-17 Dana Corp TORQUE TRANSMISSION ELEMENT FOR CLUTCH DISC ASSEMBLY
FR2757587A1 (en) * 1996-12-23 1998-06-26 Valeo IMPROVED TORSION SHOCK ABSORBER AND SHOCK ABSORBER DEVICE HAVING SUCH A TORSION SHOCK ABSORBER
FR2758864A1 (en) * 1997-01-28 1998-07-31 Valeo Torsion damper e.g. for motor vehicle friction clutch
DE102010054290A1 (en) * 2009-12-22 2011-06-30 Schaeffler Technologies GmbH & Co. KG, 91074 Damping device for damping vibrations, particularly torsional vibrations, has spring window, in which spring element is accommodated, where spring window has release opening, which is arranged at distance to spring window

Also Published As

Publication number Publication date
FR3052834A1 (en) 2017-12-22
DE112017003000T5 (en) 2019-02-28
KR20190017798A (en) 2019-02-20
FR3052834B1 (en) 2018-06-08

Similar Documents

Publication Publication Date Title
FR2768785A1 (en) FRICTION CLUTCH MOUNTED ON A DIVIDED STEERING WHEEL
EP2556268B1 (en) Damper dual mass flywheel, in particular for a motor vehicle
EP3147525B1 (en) Friction disc, in particular for motor vehicle
FR2721084A1 (en) Locking clutch, in particular for motor vehicles.
FR2738890A1 (en) TORSION SHOCK ABSORBER FOR LOCKING CLUTCH AND LOCKING CLUTCH COMPRISING SUCH A TORSION SHOCK ABSORBER
FR2765297A1 (en) Hydro-kinetic coupling with locking clutch for motor vehicles
FR2801948A1 (en) TORSIONAL VIBRATION DAMPER
WO2017216220A1 (en) Damping device for motor vehicle clutch and clutch comprising such a device
FR2797012A1 (en) HYDROKINETIC COUPLING APPARATUS, IN PARTICULAR FOR A MOTOR VEHICLE
WO2008053126A2 (en) Clutch friction disk
WO2001086162A1 (en) Disc for rigid friction clutch
FR2688840A1 (en) DIAPHRAGM FOR CLUTCH MODULE AND ITS CLUTCH MODULE, PARTICULARLY FOR MOTOR VEHICLES.
EP0892899B1 (en) Hub for preliminary shock absorber in particular for motor vehicle, and torque damping device comprising same
WO2018051043A1 (en) Damping device for motor vehicle clutch and clutch comprising such a device
WO2017085037A1 (en) Torque converter for a motor vehicle
EP3404278B1 (en) Device for accommodating misalignments between the crankshaft and the input shaft of the gearbox and friction disc provided with such a device
FR3056663B1 (en) DOUBLE DAMPER FLYWHEEL AND USE THEREOF IN A CLUTCH MODULE FOR A MOTOR VEHICLE
FR3068411A1 (en) CLUTCH DISC WITH FRICTION DEVICE
FR2825770A1 (en) Hydrokinetic coupling e.g. for motor vehicle has elastic damper with input or output member made in one piece with semi-toroid rotor shell
WO2000060252A9 (en) Torsion shock absorber for a clutch and set of friction washers for said torsion shock absorber
EP3101296A1 (en) Clutch mechanism and range of clutch mechanisms
FR2611846A1 (en) Torsion damper of elastic type
EP3212951B1 (en) Clutch disc for a friction clutch
FR3018878A1 (en) CLUTCH FRICTION DEVICE
FR3125572A1 (en) TORSIONAL VIBRATION DAMPER WITH CONTROL GEAR

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17729488

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 20187036408

Country of ref document: KR

Kind code of ref document: A

122 Ep: pct application non-entry in european phase

Ref document number: 17729488

Country of ref document: EP

Kind code of ref document: A1