FR2844317A1 - Automobile friction clutch has ring connected coaxially with flywheel by connecting flange constituting secondary flywheel and surrounds annular pressure plate, friction linings and intermediate disc between linings - Google Patents

Abstract

The friction clutch ring (3) is connected coaxially with the flywheel (1) by a connecting flange constituting a secondary flywheel (2). The ring thus surrounds an annular pressure plate (4), two friction linings (5) and an intermediate disc (6) placed between the linings. The pressure plate comprises a knife edge (7) acted on by an axial force exerted by a diaphragm (8) and the clutch hub (11) is mounted on the gearbox input shaft (13).

Description

Field of the Invention The present invention relates to a clutch with

  friction for a motor vehicle comprising a flywheel driven in rotation from the crankshaft, a clutch disc mounted securely in rotation on the input shaft of the gearbox, coaxial with the crankshaft and the radially outer edge of which carries an annular friction lining element, an annular pressure plate which can be urged by a diaphragm applied against the annular edge of the pressure plate and be pushed axially against the friction lining element, a ring surrounding the the friction lining element and the pressure plate leaving a radial gap, this ring being connected to the flywheel and its end opposite to that of the flywheel comprising an annular flange, the diaphragm bearing radially beyond the edge of the pressure plate against a support ring radially surrounding the annular flange, and the diaphragm being displaced axially by an o clutch release acting

  against its inner radial end area.

  STATE OF THE ART Known friction clutches corresponding to the type 20 defined above have the drawback of being a complicated assembly and disassembly. Purpose of the invention

  The aim of the present invention is to develop a friction clutch corresponding to the type defined above and allowing simple assembly and disassembly.

Presentation and advantages of the invention

  To this end, the invention relates to a friction clutch of the type defined above, characterized in that the annular flange is removably mounted on the ring, or the annular flange and the ring are removably mounted on the flywheel.

  Thus from the side of the gearbox, by detaching and simply removing the annular flange or the annular flange and the ring from the side of the gearbox, the diaphragm and the packing element can also be removed. friction towards the side of the gearbox to replace them with new parts. Of the-

  assembly of the friction clutch assembly is not necessary

to disassemble these parts.

  The advantageous gear ratio of the diaphragm requires only a relatively small actuating force to open the clutch.

  In addition, the mounting of the friction clutch is simple and consists of few parts.

  The annular flange can be fixed to the ring by being axially supported by one or more spacers and in the simplest way the annular flange is fixed to the ring by means of

  screw connections. The screws of these connections pass axially through the spacer pieces in the form of a spacer sleeve. This allows detachment simply by passing to the side of the gearbox.

  Another solution to the problem consists of a ring 15 with claws extending in the form of a bearing with intervals in the peripheral radial direction, the end of the claws receiving the annular flange.

  This embodiment allows simple mounting and mounting of the various parts from the side of the gearbox 20 without requiring complete disassembly of the friction clutch.

  The advantageous gear ratio of the diaphragm requires only a relatively small actuating force to open the friction clutch which moreover has a construction

  simple and with a reduced number of parts.

  The annular flange can have a closed annular shape

  but also consist of annular flange segments spaced radially in the peripheral direction.

  To reduce the number of parts, the flywheel and / or the ring and / or the claws and / or the annular flange or the annular flange segments can be produced in the form of a single part.

  If the annular flange segments are separate parts that attach to the claws or ring, these parts can be removed

  easily to disassemble other clutch components.

  For locking in the correct position during assembly, the 35 annular flange segments may have fixing parts at their ends directed in the peripheral direction, parts by which

  they bear against the peripheral surface of a claw.

  The annular flange segments can simply be removed from the side of the gearbox if these segments are fixed to the claws or to the ring by axial screw connections.

  If the annular flange segments are integral with the claws and are removably attached to the flywheel, this reduces the number of parts and allows mounting and dismounting simply from the side of the gearbox if the annular flange segments 10 and the claws are fixed to the flywheel by screw connections.

  We obtain a part with several simple components to manufacture if the ring and the annular flange or the annular flange segments are constituted by a sheet metal part in the shape of a pot, the bottom of which is connected to the flywheel, in particular by an axial screw connection. 15 and whose pot wall constitutes the ring, the ends of the wall

  forming the annular flange or the annular flange segments.

  The support ring can be formed with a piece saving on the annular flange or the annular flange segments as

axially projecting molding.

  Another possibility consists in producing the support ring in particular in the form of a wire ring housed in a cavity in the form of a corresponding groove, open axially towards the pressure plate, this cavity being produced in the annular flange. where the

  annular flange segment and the ring protrudes axially.

  The groove-shaped cavity can be a groove machined in the annular flange or in the annular flange segments.

  In particular in the case of a detachable annular flange or of detachable annular flange segments made of sheet metal, the groove-shaped cavity can simply be produced by folding the annular flange or the annular flange segments in the form of hooks.

  To facilitate assembly and disassembly, the wire ring is in particular an open ring.

  If there is a gap between the ends of the open ring, bringing the ends of the ring closer together can easily

  reduce its diameter for mounting and dismounting so that it can pass through the interior opening of the annular flange or annular flange segments passing axially.

  If the ends of the open ring come radially 5 in the interval between two claws and if each end comes to bear against the facing surfaces of the two claws, the ring in the state

mounted is locked in rotation.

  If the free ends of the open ring are folded over to form eyelets, the diameter can be reduced or the diameter of the ring increased by acting on the eyelets or by bringing the

  by spreading the eyelets with a tool.

  To improve the reduction ratio of the diaphragm and reduce the actuating force of the clutch, the diaphragm may be provided with external tongues projecting radially and whose radial extension is greater than the diameter of the support ring. , the diaphragm passing through the internal opening of the annular flange or the annular flange segments and the external tongues of the diaphragm passing axially through the intervals of the claws or

annular flange segments.

  The axial passage of the diaphragm with its tabs in

  the intervals between the claws or the annular flange segments and the rotation of the baőnnette type which is then carried out on the diaphragm causes the tabs to pass behind the annular flange segments to be supported by the support ring. This allows a simple mounting and dismantling of the clutch passing through the side of the gearbox.

  To prevent the wire ring from moving, this preferably comprises a means of locking in rotation in the peripheral direction, this means being constituted in a simple manner by bends or formations extending axially from the plane of the ring and

  which can surround an outer tab of the diaphragm.

  To receive the torque while allowing mounting and dismounting from the side of the gearbox, the pressure plate may include cams radially projecting and coming into the

  intervals between the claws by pressing against them in the peripheral direction.

  To increase the torque transmitted by the friction clutch, several friction lining elements can be provided between the flywheel and the pressure plate, each with an intermediate disc between two friction lining elements, and the support of the torque preferably provided by cams radially projecting outwards on the intermediate disc, crossing the intervals of the

  claws and pressing against them in the peripheral direction.

  Another torque support also advantageous with

  possibility of mounting and dismounting from the side of the gearbox is characterized in that the ring or the claws have an internal toothing at their internal periphery, with teeth extending radially and the pressure plate and / or the intermediate disc have a corresponding external toothing on their radial periphery.

  The annular flange or the annular flange segments may extend radially outward or inward from the ring. In the case of an outward radial extension, there will be greater gear ratios for the diaphragm and thus lower actuation forces for the clutch.

  Large gear ratios can also be obtained in a simple manner if the ring or the claws have radially developed end zones on the side of the annular flange or of the annular flange segments and if the support ring has a diameter 25 be larger than the inside diameter of the ring at the pressure plate and the friction lining element.

  In a simple manner, an integral mounting of a crankshaft starter-generator can be carried out in the friction clutch if on the ring or the claws a starter-generator rotor is fixed by surrounding them radially, this rotor being itself surrounded by the fixed stator of the starter-generator or if the ring and the claws are surrounded by a fixed stator of the starter-generator, the latter itself being surrounded by the rotor secured to the flywheel of the starter-generator, in the radial peripheral direction . 35 Drawings The present invention will be described below in more detail with the aid of exemplary embodiments represented in the appended drawings in which: - Figure 1 is a partial section of a first embodiment of a friction clutch, - Figure 2 is a partial view of the clutch gearbox side of Figure 1, - Figure 3 is a perspective detail of the friction clutch of Figure 1, - Figure 4 is a partial section of a second embodiment of a friction clutch, - Figure 5 is a partial view of the side of the gearbox of the friction clutch of Figure 4, - Figure 6 is a partial section of a third exemplary embodiment of a friction clutch, - Figure 7 is a partial view of the side of the gearbox of the friction clutch of Figure 6, - Figure 8 is a side view of the ends of a wire ring, - the FIG. 9 shows a segment of the wire ring comprising a means of locking in rotation, - FIG. 10 is a partial section of a fourth embodiment of a friction clutch, - FIG. 11 is a section partial view of a fifth exemplary embodiment of a friction clutch at the level of the screw fixing of the annular flange, - FIG. 12 is a section of the example of embodiment of FIG. 11 at the level of the cams of the plate pressure and the intermediate disc, - Figure 13 is a partial view of the side of the gearbox of the friction clutch of Figure i1, - Figure 14 is a perspective view of the flywheel of the embodiment in Figure i1, - Figure 15 is a partial section of a sixth exemplary embodiment of a friction clutch, - Figure 16 is a partial view of the gearbox side of the friction clutch Figure 15, Figure 17 is a partial section of a seventh embodiment of a friction clutch, - Figure 18 is a partial section of an eighth embodiment of a friction clutch at the level of the screw fixing of the annular flange, - Figure 19 is a partial section of the embodiment of FIG. 18 at the level of the cams of the pressure plate and of the intermediate disc, FIG. 20 is a partial view of the gearbox side of the friction clutch. FIG. 18, FIG. 21 is a partial section of a ninth embodiment of a friction clutch,

  - Figure 22 is a partial section of a tenth embodiment of a friction clutch.

  Description of various embodiments of the invention

  The friction clutches shown in the figures and which are multi-disc clutches with friction lining elements comprise a flywheel 1 driven in rotation by the crankshaft not shown of an internal combustion engine.

  By means of a connecting piece in the form of a flange which constitutes a secondary flywheel 2, a ring 3 is connected coaxially to the flywheel 1. The ring 3 thus surrounds at an radial distance, an annular pressure plate 4 , two friction lining elements 5 and an intermediate disc 6 placed between the elements

with friction lining 5.

  On its side opposite to the flywheel 1, the pressure plate 4 has a knife-shaped edge 7 urged by an axial force exerted by a diaphragm 8, 8 ′ installed coaxially to press the packing elements by the pressure plate 4 friction 5 axially movable and the intermediate disc 6 placed between them

  firmly against the secondary flywheel 2 connected to the flywheel 1.

  The two friction lining elements 5 comprise clutch discs 9 connected in rotation with the hub 11 of the clutch by drive disks 10. In the exemplary embodiments, the hub is common to the two friction lining elements.

friction 5.

  The clutch hub 11 is mounted by a hub profile 12 on the gearbox input shaft 13 with a corresponding profile. This shaft is coaxial with the crankshaft and is part of a box of

  gears including a mechanical gearbox of the vehicle.

  The diaphragm 8, also coaxial, surrounds by its internal cutout the input shaft of the gearbox and the ends 10 of the elastic tongues directed radially inwards can be pulled by a clutch release bearing 14 from the engaged position such

  as shown to move away from the pressure plate 4.

  The diaphragm 8, 8 'supported radially outside the knife edge 7 of the pressure plate by its outer radial zone against a peripheral radial support ring 24, directed towards the flywheel 1 is thus lifted relative at the edge 7 of the pressure plate and thus releases the axial tension of the friction lining elements 5 and the intermediate disc 6 relative to the secondary flywheel 2

  to disengage the friction clutch.

  In the embodiments of Figures 1 to 3, the ring 3 is provided with claws 16 directed axially and which extend in the manner of a basket from the secondary flywheel 2. Between these claws there are intervals 17 directed radially in the peripheral direction. The secondary flywheel 2 and the claws 16 consist of a single piece of cast iron. An annular flange 19 (left side)

  is fixed against the free front face of the claws 16 using screws 18; alternatively, on each claw 16 can be fixed an annular flange segment 20 (right side).

  The annular flange segments 20 have fixing parts 21 at their ends directed in the peripheral direction. These parts are formed by folded parts by which they bear against the surfaces 22 of the claws 16 directed in the

  peripheral direction and surround these surfaces.

  The annular flange 19 and the annular flange segments 35 20 extend radially inwards from the claws 16 and at their end zones directed inwards, they have curved hook-shaped portions 23 . These curved parts form, with their opening, cavities 24 in the form of grooves facing the flywheel 1. A wire ring 25 is placed in these 5 cavities 24 in the form of grooves. This ring protrudes from the cavity in

  form of groove and constitutes the support ring 15 against which the diaphragm 8 rests. Since the annular flange 19 and the annular flange segments 20 are directed radially inwards only over a short length, these parts do not not likely to be deformed by the elastic force 10 exerted by the diaphragm 8.

  The pressure plate 4 has at its outer periphery, cams 26 penetrating into the gaps 17 between the claws

  16 and pressing against them in the peripheral direction.

  The embodiment of Figures 4 and 5 has practically the same structure as the example of Figures 1 to 3. However, the annular flange segment 20 'is made in one piece with the claws 16 and the flywheel secondary 2 and the groove-shaped cavities 24 are formed by a groove 27 machined in

  the annular flange segments 20 '.

  As shown in Figure 5, the wire ring 25 is

  an open ring and between its ends there remains a gap 28.

  The free ends of the ring are folded back to form eyelets 29 and these eyelets penetrate substantially in the radial direction in the gap 17 between two claws 16. Each of the ends is in contact with a corresponding surface 22 of the claws 16.

  In the embodiment of Figures 6 and 7, the secondary flywheel 2, the claws 16 and the annular flange segments 20 "are constituted by a sheet metal part shaped like a pot, the bottom 30 of which is connected to the flywheel 1 by a screwed axial connection 31. Inside the pot, the secondary rotor 2 bears axially against the

  bottom 30 of the pot and also has, at its outer periphery, cams 32 radially projecting and penetrating into the intervals 17.

  The groove-shaped cavities 24 receiving a ring 35 of wire 25 are formed by the folded parts 23 of the annular flange segments 20 '; these folded parts 23 are in the form of hooks

facing outwards.

  The diaphragm 8 ′ has tongues 33 radially projecting, passing in the intervals 17 between the claws 16, at 5 extending radially outward to bear axially against the ring of wire 25.

  FIG. 8 shows the ends in the form of eyelets 29 of a ring 25 suitable in particular for the embodiment of FIGS. 6 and 7. The eyelets 29 are applied one against the other and they are moved apart to detach the ring 25 to increase the diameter of

the ring 25.

  Figure 9 shows a detail of the wire ring 25 having curved portions 34 extending axially from its plane. These curved parts surround an external tongue 33 of the diaphragm 15 preventing movement in the peripheral direction of the elastic ring 25.

  The structure of the friction clutch shown in FIG. 10 largely corresponds to that of FIGS. 6 and 7. However, the folded parts in the form of hooks 23 are directed further radially inwards.

  The structure of the embodiment of Figures 11 to 14 corresponds to a large extent to that of the embodiment of Figures 1 to 3. Unlike this, an annular flange 19 is fixed by sleeves d 'spacing 35 against the front faces of the 25 claws 16 using screws 18 axially passing through the spacing sleeves 35. The support ring 15 is produced on the annular flange 19' in the form of a molding 36 axially projecting and which is radially beyond the interior opening of the claws 16. The diaphragm 8 ′ has elastic tongues 33 radially projecting to bear against the molding 36. In this case also the

  pressure plate 4 and the intermediate disc 6 have cams 26 coming into the intermediate spaces 17.

  The embodiment of Figures 15 and 16 also has an annular flange 19 screwed by axial screws 18 against the front face of the ring 3. In place of a molding, the diaphragm 8

  is supported by a wire ring 25 against the annular flange 19 '.

  In its zone surrounding the pressure plate 4, the friction lining elements 5 and the intermediate disc 6, the ring 3 5 has at its inner periphery an internal toothing with

  teeth 39 extending axially and into which penetrates a corresponding external toothing 40 at the level of the radial periphery of the pressure plate 4 and of the intermediate disc 6 so that the torque acting on the pressure plate 4 and the intermediate disc 6 10 s' press against the ring 3.

  The structure of the embodiment of Figure 17 corresponds very largely to that of Figures 15 and 16. In this example, the ring 3 is closed.

  To have a support for the diaphragm 8 radially away from the outside 15, the end zone 37 of the ring 3 facing the annular flange 19 is extended radially and forms an annular step 38 at the level of the end zone 37 peripheral, radially inner. The diaphragm 8 penetrates with its outer radial zone in the annular step 38 in this outer radial zone, the diaphragm dia20 also bears by means of a ring 25 against the annular flange 19. The ring 25 has a larger diameter. larger than the inner diameter of the ring 3 at the pressure plate 4 of the

  friction lining elements 5 and the intermediate disc 6.

  In the embodiment of Figures 18 to 20, the secondary lamp 25 is a separate part to which the claws 16 are fixed by axial screws 18. The end of the claws 16 opposite the flywheel 1 comprises annular flange segments 20 "", forming a single piece and which is a molding 36 axially projecting,

  also made of the material and serving as a support ring.

  The friction clutch of figure 21 corresponds to the

  structure of the embodiment of Figure 17. In addition, the outer periphery of the ring 3 has a rotor 41 which surrounds it and is part of a crankshaft generator starter 42. This rotor 41 is surrounded by the stator 43 of the generator starter 42. The stator is mounted on a fixed part.

  Figure 22 shows a friction clutch corresponding to that of Figures 18 to 20. The ring 3 is axially overflowed by a support 44 connected integrally to the gearbox. This support receives the stator 43 surrounding the ring 3 and forming part of the starter generator 5 42. This stator 43 is itself surrounded by the rotor 41 of the

  starter generator 42 and the latter is fixedly connected to the flywheel 1 by the support 45.

1 2 3 4

6 7 8 10 8 '

11 12 15 13

14 15 16 17 20 18

19 19 '20 20' 25 20 "

"'20

21 22 30 23

24 25 26 27 35 28

NOMENCLATURE

  Flywheel Secondary flywheel Ring Pressure plate Friction lining element Intermediate disc Pressure plate edge Diaphragm Diaphragm Clutch disc Drive disc Clutch disc means Hub profile Clutch release bearing Support ring Claws Intervals Screw Flange ring Annular flange Annular flange segment Annular flange segment Annular flange segment Annular flange segment Annular flange segment Attachment Surface Hook-shaped curved part Groove-shaped cavity Wire ring Cams Groove Distance

29 30 31 32 5 33

34 35 36 37 10 38

39 40 41 42 15 43

  44 45 Eyelets Bottom Screw connections Cams Outer diaphragm tabs Folded part Spacer Sleeve Molding End zone Annular bleacher Teeth Outer teeth Rotor Crankshaft starter-generator Stator Support Support

Claims (14)

RESELL I CATI ONS   1) Friction clutch for a motor vehicle comprising a flywheel driven in rotation from the crankshaft, a clutch disc mounted integrally in rotation on the input shaft of the gearbox, coaxial with the crankshaft and the radially outer edge carries an annular friction lining element, an annular pressure plate which can be urged by a diaphragm applied against the annular edge of the pressure plate and be pushed axially against the friction lining element, a ring surrounding the friction lining element and the pressure plate leaving a radial gap, this ring being connected to the flywheel and its end opposite to that of the flywheel comprising an annular flange, the diaphragm resting radially on the beyond the edge of the pressure plate against a support ring radially surrounding the annular flange, and the diaphragm being displaced ax ial by a declutching member acting against its inner radial end zone, characterized in that   the annular flange (19, 19 ') is removably mounted on the ring (3), or the annular flange and the ring are removably mounted on the flywheel (1).   ) Friction clutch according to claim 1, characterized in that the annular flange (19) is fixed axially to the ring (3) pressing against it by means of one or more pieces of spacing. ) Friction clutch according to claim 1, characterized in that   the annular flange (19) is fixed to the ring (3) by screw connections.   ) Friction clutch according to any one of claims 2   and 3, characterized in that the screws (18) of the screw connections pass axially through the parts   spacer in the form of spacer sleeves (35).   ) Friction clutch according to the preamble of claim 1, characterized in that the ring comprises claws (16) in the form of bearings, extending radially in the peripheral direction with intermediate spaces (17), the free end claws (16) receiving the annular flange (19, 19 '). ) Friction clutch according to claim 1, characterized in that   the annular flange (19, 19 ') is produced in the form of a closed ring.   ) Friction clutch according to any one of claims 1   to 5, characterized in that the annular flange is formed of annular flange segments (20, 20 ', 20 20 ", 20"', 20 ""), installed relative to each other leaving a   interval, in the peripheral radial direction.   ) Friction clutch according to claim 1, characterized in that the flywheel (1) and / or the ring (3) and / or the claws (16) and / or the annular flange (19, 19 ') or the annular flange segments (20 ', 20 ",   "") are made in one piece.   ) Friction clutch according to claim 1, 30 characterized in that the annular flange segments (20, 20 "') are separate parts   attached to the claws (16) or to the ring (3).   ) Friction clutch according to claim 9, 35 characterized in that the annular flange segments (20) have at their ends directed in the peripheral direction, fasteners (21) with which these segments are supported (16 ) against surfaces   (17) of a claw (16), surfaces directed in the peripheral direction.   ) Friction clutch according to claim 10, characterized in that the annular flange segments (20) are fixed by axial screw connections to the claws (16) or to the ring. 10 12) Friction clutch according to claim 1, characterized in that   the annular flange segments (20 "") are made in one piece with the claws (16) and are removably attached to the flywheel 15 (1).   ) Friction clutch according to claim 11, characterized in that   the annular flange segments and the claws are fixed to the flywheel by axial screw connections.   14) Friction clutch according to claim 1, characterized in that the ring (3) and the annular flange or the annular flange segments 25 (20 ") are produced by a sheet metal part in the form of a pot, the bottom ( 30) is connected to the flywheel (1) in particular by axial screw connections (31), the wall of the pot constituting the ring and the free end of the pot constituting the annular flange or the annular flange segments (20 ").   ) Friction clutch according to claim 1, characterized in that   the support ring (15) is formed on the annular flange (19) or on the annular flange segments (20 "") in the form of a molding (36) 35 axially projecting.   ) Friction clutch according to claim 1, characterized in that the support ring (15) is a wire ring (25) housed in a groove-shaped cavity (24), open axially in the direction of pla5 pressure plate (4), in the annular flange (19) or in the annular flange segments (20, 20 ', 20 "), coming axially projecting from this cavity (24).   ) Friction clutch according to claim 16, 10 characterized in that the groove-shaped cavity 24 is a groove (27) machined in the   annular flange or in the annular flange segments (20 ').   ) Friction clutch according to claim 16, 15 characterized in that   the annular cavity (24) is formed by the hooked folded parts (23) of the annular flange (19) or of the annular flange segments (20, 20 ").   190) Friction clutch according to any one of claims 16 to 18, characterized in that   the wire ring (25) is an open ring.   20) Friction clutch according to claim 19, characterized by a gap (28) between the ends of the open wire ring (25).   210) Friction clutch according to any one of claims   to 13 and 16 to 20, characterized in that the ends of the open ring (25) come radially in an intermediate space (17) between two claws (16) and each end is in abutment against one of the two surfaces in look (22) of the two claws (16).   220) Friction clutch according to any one of claims 19à21, characterized in that   the free ends of the open ring (25) are bent to form eyelets (29).   230) Friction clutch according to any one of claims   1 to 5 and 7 to 22, characterized in that the diaphragm (8 ') comprises tongues (33) radially projecting and whose radial extension is greater than the diameter of the support ring 15 (15), the diaphragm (8 ') which can be moved axially in the interior opening of the annular flange (19) or the annular flange segments (20 ", 20" ") and the external tabs (33) of the diaphragm pass through the intervals (17 ) claws (16) or segments of annular flanges.   24) Friction clutch according to any one of claims 19 to 23, characterized in that   the wire ring (25) comprises a means of locking in rotation 25 in the peripheral direction.    ) Friction clutch according to claim 24, characterized in that the wire ring (25) comprises curved parts (34) protruding from its plane and making it possible to surround the external tongues (33) of the diaphragm. 26) Friction clutch according to claim 5, characterized in that the pressure plate (4) comprises cams (26) projecting outwards and coming in the intervals (17) of the claws (16) in   leaning against them in the peripheral direction.   270) Friction clutch according to claim 1, characterized by several elements with friction lining (5) between the flywheel (1) and the pressure plate (4), and with an intermediate disc (6) between each two elements with friction lining (5). 10   280) Friction clutch according to any one of claims at 27,   characterized in that the intermediate disc (6) has cams (32) projecting radially outwards and which come into the intervals (17) of the claws   (16) and lean against them in the peripheral direction.   290) Friction clutch according to claim 1, characterized in that the ring (3) or the claws (16) have at their inner periphery, an internal toothing with teeth (39) extending axially and into which penetrates a external teeth (40) corresponding to the pressure plate (4) and / or the intermediate disc (6) by its periphery radially exterior.    ) Friction clutch according to claim 1, characterized in that   the annular flange (19, 19 ') and the annular flange segments (20, 20', 20 ", 20" ', 20 "") extend from the ring (3) radially outward or radially inward.   31) Friction clutch according to claim 1, characterized in that   the ring (3) or the claws are radially widened at their 35 end zones (37) facing the annular flange (19 ') or the segments   annular flange elements and the support ring (15) has a diameter greater than the inside diameter of the ring (3) at the pressure plate (4) and the friction lining element (5 ).   320) Friction clutch according to claim 1, characterized in that   a rotor (41) of a crankshaft starter-generator (42) is mounted integrally on the ring (3) or the claws by surrounding them, this rotor itself being surrounded by the fixed stator (43) of the generator starter (42).   330) Friction clutch according to claim 1, characterized in that the ring (3) or the claws are surrounded by the fixed stator (43) of a crankshaft generator generator (42) and this is it - even surrounded   by a rotor (41) integral in rotation with the flywheel (1) of the starter-generator (42), surrounding it in the radial direction.