WO2018091022A1

WO2018091022A1 - Torque-transmitting device

Info

Publication number: WO2018091022A1
Application number: PCT/DE2017/100860
Authority: WO
Inventors: Dirk Reimnitz
Original assignee: Schaeffler Technologies AG & Co. KG
Priority date: 2016-11-21
Filing date: 2017-10-12
Publication date: 2018-05-24
Also published as: DE102016222892A1; DE102016222892B4; DE112017005870A5

Abstract

The invention relates to a torque-transmitting device (1), having a pressure plate (7) which is arranged in axially movable fashion and which is connectable to a component (28), and in which said component (28) is assigned to an actuation system (29) for the actuation of the torque-transmitting device (1). According to the invention, to realize a radially compact design, it is provided here that, for the connection of the component (28) to the pressure plate (7), a connecting element (21) is formed and/or mounted on the component (28) and an attachment element (24) is formed and/or mounted on the pressure plate (7), in such a way that, by means of the connecting element (21) of the component (28) and by means of the attachment element (24) of the pressure plate (7) alone, the component (28) and the pressure plate (7) can be placed in fixed engagement with one another such that, by means of the connection of component (28) and pressure plate (7) alone, forces can be transmitted between said component and pressure plate in both axial directions, and/or it is ensured that the component (28) and the pressure plate (7) can move only jointly in an axial direction. This torque-transmitting device (1) may be in the form of a friction clutch or a friction brake.

Description

Torque transfer device

The invention relates to a torque transmission device, comprising a pressure plate, which is arranged axially movable and can be connected to a component, and in which this component is associated with an actuating system for actuating the torque transmission device. This torque transmission device can be designed as a friction clutch or as a friction brake.

In the following, a torque transmission device is understood as meaning a friction clutch or a friction brake. In order to couple in such a torque transfer device whose pressure plate, by means of one or more friction plates for switchable production of a frictional engagement between two rotating parts directly or indirectly against an axially fixed counter-plate to couple with an associated actuation system, certain connection devices are required. In known arrangements of double clutches these connecting devices are relatively expensive in construction and in the space requirement due to a mostly nested structure of two axially juxtaposed partial clutches and two coaxially superposed transmission input shafts for at least one of the pressure plates of one of the two partial clutches. Such dual-clutch arrangements are known, for example, from US Pat

DE 10 2006 022 054 A1, EP 1 524 446 A1, WO 2015/1 441 63 A1 and

WO 2015/1 498 04 A1.

A dual clutch is used in the drive train of a motor vehicle, by means of a first partial clutch and a second partial clutch, a drive shaft of a drive motor, such as an internal combustion engine or an electric motor of a hybrid drive in an at least predominantly traction-free change with a first transmission input shaft of a first partial Component (28, 60) on two surfaces of the pressure plate (7, 53), which point in opposite directions, at least partially applied. Torque transmission device according to any one of claims 1 to 3, characterized in that with the pressure plate (7, ^'53) to connecting member (28, 60) at least partially laterally in the circumferential direction of the connecting element (24, 46, 67, 74, 79) the pressure plate (7, 53) can be applied. Torque transmission device according to one of claims 1 to 4, characterized in that the connecting element (24, 46, 67, 74, 79) of the pressure plate (7, 53) or the connecting element (21, 43, 64, 71, 76) of the component ( 28, 60) has at least one radial undercut. Torque transmission device according to one of claims 1 to 5, characterized in that the connecting element (21, 43, 64, 71, 76) of the component (28, 60) formed in a directly adjacent to the pressure plate (7, 53) adjacent region at least partially circumferentially closed is. Torque transmission device according to one of Claims 1 to 6, characterized in that a first pressure plate (7) is assigned to a first torque-transmitting device (1) designed as a double clutch and to a first component (28) designed as a tie rod. is connectable, said first component (28) radially engages over a second, gear-side partial coupling (6b) and an axially fixed first counter-plate (13), and in which for establishing the connection between the first pressure plate (7) and the first component (28 ) is arranged and / or formed:

a first connection element (24) on the pressure plate (7), which has a plurality of radially offset from the body of the pressure plate (7) and each with a first lateral bevel (39a) and a second lateral bevel (39b) and / or a tangential contact contour ( 84) has provided first connection extensions (38), exposed loads. This means that radially outward on the double clutch, a place on the space is usually scarce and heavy components particularly disturbing effect on the moment of inertia of the clutch, usually large fasteners must be installed.

On the other hand, the characteristics of a friction clutch device can be improved if the diameter of the clutch plates is increased, since this increases the torque which can be transmitted with the same contact force. But also by the reduction of the clutch outer diameter, the coupling properties can be improved, as this reduces the moment of inertia of the friction clutch. This also applies analogously to friction brake devices. With the known connection techniques between a pressure plate and components of an actuating system, which must be connected to the pressure plate, however, a friction clutch device or a friction brake device can not be optimized in both directions.

Against this background, the object of the invention was to propose a torque transmission device in the form of a friction clutch or friction brake with a pressure plate which permits a compact construction of the torque transmission device and / or improves its functional properties. In particular, the radial installation space required for connecting the pressure plate to a component of an associated actuation system should be reduced compared to known technical solutions. The invention was based on the finding that in a torque transmission device, in particular in a dual clutch with two axially juxtaposed partial clutches, the actuating systems are both arranged on the same side of the double clutch certain radial outer components, such as a tie rod or a pressure pot, on the one hand On the other hand, this attachment unnecessarily increases the radial diameter of this torque transmission device or the available radial space for clutch disks or other friction surfaces. cheaply reduced. This is the case, in particular, when the component and the pressure plate are riveted or screwed together via additional connecting elements or radially protruding projections, and these connecting elements are positioned radially over the coupling disks and / or the other friction surfaces. Such fasteners can not radially as compact build as it can a connection device in which the component to be connected directly formed by means of suitably trained contours around formed on the pressure plate, formed to these geometrically complementary contours around or otherwise engaged and thereby secured.

The invention is therefore based on a torque transmission device, comprising a pressure plate, which is axially movable and can be connected to a component, and in which this component is associated with an actuating system for actuating the torque transmission device.

To achieve the object, the invention provides that for connecting said component with the pressure plate on the component, a connecting element and on the pressure plate, a connection element is formed and / or attached, such that alone on the connecting element of the component and the connection element the pressure plate, the component and the pressure plate are firmly engageable with each other, so that alone by means of the connection between the component and the pressure plate between these two forces in both axial directions are transferable and / or ensured that the component and the pressure plate in the axial direction only together can move.

The directional indications "axial", "radial", "tangential" and "circumferential direction" refer to a rotational axis of the torque transmission device. If the following description of further developments and advantages as well as exemplary embodiments uses numerical terms such as "first", "second", "third", etc., this only serves to distinguish different exemplary embodiments, and these numerals are therefore not used to define the number of such Components or devices. The named component is here essentially in the form of a tie rod or a pressure pot, since these components are frequently used in double clutches. In principle, however, this is simply a component which may consist of one or more individual parts or of an assembly. For example, areas of a tie rod or a pressure pot which are referred to as tie rod feet or pressure pad feet can be such individual parts. This component must be attached to a pressure plate. About the component, the pressure plate can be moved and / or acted upon by a force. Tie rod and pressure pot are usually used to engage radially and axially around the actuation of a pressure plate to another part coupling. However, they can also engage around or through other assemblies or around another component, or at least contribute to bridging an axial distance between the pressure plate and the associated actuating system.

All of the contour elements or assembly concepts described here for tie rods or pressure pots can be used independently of the force direction and can therefore be used both on tie rods and pressure pots. In addition, the sub-aspects of this invention may of course also be combined with one another by the skilled person in a meaningful way.

By the invention, therefore, a simple connection concept is presented in a torque transmission device in which a pressure plate of a friction clutch or a friction brake with a component of an actuating system for axially displacing the pressure plate can be connected in a compact, radially small-sized way.

This can be achieved according to the invention in that it is dispensed with separate connection components, and instead formed a connecting element of the relevant component itself around radial extensions or other shaped terminal contours of the pressure plate around or otherwise engaged becomes. This creates a heavy-duty connection between the pressure plate and the relevant component. Separate connection components, such as screws or rivets, therefore cost and weight saving not necessary The proposed connection concept for a pressure plate is particularly advantageous for dual clutches used in which two partial clutches are arranged axially adjacent to each other and the two actuation systems of the partial clutches on the same side of the double clutch , In this case, the pressure plate of the partial coupling arranged away from the two actuating systems can be space-savingly coupled with an associated actuation system, as previously.

It should be noted, however, that the connecting device of a pressure plate according to the invention in a torque transmission device is not limited to use in dual clutches, but in principle is advantageously suitable for all types of friction clutch and Reibungsbremseinrichtungen to reduce their radial space, although their use in double clutches there is particularly advantageous. In a further development of the invention it is provided that the connecting element of the component and / or the connection element of the pressure plate are plastically deformable at least at their associated ends, and that by a plastic deformation of the connecting element to the connection element, or by a plastic deformation of the connection element to the connecting element , The connection between the component and the pressure plate can be produced. The plastic deformation can be realized for example by bending, upsetting, spreading or thickening.

Compared to the prior art can therefore be provided to save radial space, that on the axially movable pressure plate with her to be connected component by niets- and screw connection connection techniques, such as by caulking is attached. In addition, it can be provided that the component to be connected to the pressure plate is at least partially applied to both axial sides of the pressure plate. Due to the fact that the component surrounds the pressure plate axially on both sides, a transmission of motion can take place in both axial directions. Thus, the associated actuating system can actively engage and actively disengage the pressure plate. The compound is therefore equally advantageous for Kupplungseinrücksysteme as well as for Kupplungsausrücksysteme. Alternatively, it can be provided with the same effect that the component to be connected to the pressure plate on two surfaces of the pressure plate, which point in opposite directions, at least partially applied.

It can further be provided that the component to be connected to the pressure plate can be applied at least partially laterally in the circumferential direction on the connection element of the pressure plate. Because the component rests laterally against the connection element, the two parts are secured in a tangential direction relative to one another against rotation.

In addition, it can be provided that the component to be connected to the pressure plate is made at least in the region of the connecting element of a ductile material, such as steel, aluminum, magnesium or an alloy of these substances, whereby this area during assembly of the friction clutch or friction brake trained torque transmission device is plastically deformable. In addition, it can be provided that the component to be connected to the pressure plate has a thin-walled shape at least in the region of the connecting element, as is the case, for example, with metal sheets or sheet metal parts, so that the component is at least in the region of the connecting element during assembly Torque transmission device is deformable. Accordingly, to produce the connection between the pressure plate and the component to be connected to the pressure plate, a deformation of the component can be made, such that the component in the region of the connecting element surrounds the pressure plate axially on both sides. To close the connection, that can Component to be plastically deformed during coupling assembly or brake assembly. The component, such as a tie rod or a pressure pot, this can be made partially or completely as sheet metal parts. In principle, the pressure plate can also be made of a ductile material at least in the region of its connection element and / or be formed as a thin-walled metal sheet which can be deformed in the region of the connection element for producing the connection. Preferably, however, only the component and not the pressure plate is deformed. This has the advantage that the pressure plate as usual may consist of cast iron or other poorly deformable material, which is suitable for the pressure plate.

It can further be provided that the connection element of the pressure plate has at least one radial undercut. Accordingly, the connection element of the pressure plate can consist of several undercuts or undercuts. Undercuts are often used in the casting technique to secure by means of projections which protrude from the casting, the casting against accidental dislocation, for example from a mold or the like. Undercuts can also be used to limit the displacement between two components. This limitation of the relative movement to one another can act on one side or in several directions.

In the case of the pressure plate formed according to the invention, a force transmission in the radial direction between the pressure plate and the component to be connected to the pressure plate can be effected by such undercuts. In this case, the component can be held by the pressure plate in the radial direction. As a result, a stability of the connection against attacking centrifugal forces, as they arise, for example, by the rotation of a clutch can be ensured. To produce the connection of such a connection element of the pressure plate with a connecting element of the component, this component in an assembly step can be formed on one side or on both sides of the pressure plate radially inward. The deformation can be carried out in other embodiments of the compound also radially outward or in the circumferential direction. In addition, openings, such as axial through-holes in the pressure plate, can also be used as means for producing be provided connection of the connection. These openings can be used to transmit forces in one or more directions and / or to limit movement in one or more directions. An alternative embodiment for securing the centrifugal force stability of the connection can be achieved in that the connecting element of the component is formed in a region immediately adjacent to the pressure plate at least partially closed, so that the centrifugal forces can be absorbed by the closed circumference.

According to a first, more specific embodiment of the torque transmission device according to the invention can be provided that a first pressure plate of a first drive motor side part of a coupling coupling formed as a torque transfer device assigned and connectable with a trained as Zuganker first component, said first component, a second, transmission side Partial coupling and an axially fixed first counter-plate radially overlaps, and arranged in the following for the preparation of the connection between the first pressure plate and the first component and / or is formed:

a first connecting element on the pressure plate, which has a plurality of first contact extensions radially offset from the body of the pressure plate and each provided with a first lateral bevel and a second lateral bevel and / or a tangential contact contour;

a first connecting element on the component, which is circumferentially closed in the region of the pressure plate connection and has a plurality of first tie rod feet axially offset from the body of the component, each having at least one first tab projecting axially thereon,

- And a plurality in the component radially inwardly extending contours, which form axial abutment surfaces for the pressure plate, wherein the pressure plate can be used with the connection extensions in the component and can be applied to the stop surfaces during assembly of the torque transmission device, and then the tabs axially behind the terminal extensions are umlegbar. The tabs can hereby be additionally applied to lateral bevels or lateral surfaces of the connection extensions. The radially inwardly extending contours can be formed as beads with frontal abutment surfaces.

According to a second, further concretized embodiment of the invention it can be provided that a first pressure plate of a first, part of the drive motor side partial coupling of a torque converter designed as a double clutch and connectable with a trained as a tie rod first component is connectable, said first component, a second, gear side partial coupling as well as an axially fixed first counter-plate radially engages over and / or axially engages, and arranged in the following for the preparation of the connection between the first pressure plate and the first component and / or is formed:

a second connecting element on the pressure plate, which has a plurality of second contact extensions radially offset from the body of the pressure plate and each having a radial undercut and each with a first lateral bevel and a second lateral bevel and / or a tangential contact contour;

a second connecting element on the component which, viewed in the circumferential direction of the component in the area of the pressure plate connection, is predominantly interrupted and which has a plurality of second tie rod feet axially offset from the body of the component, each having at least one second tongue axially projecting therefrom;

- And several in the component radially inwardly extending contours, which form axial abutment surfaces for the pressure plate, wherein during assembly of

Torque transmission device, the pressure plate can be used with the terminal extensions in the component and can be applied to the stop surfaces, and then the tabs axially behind the terminal extensions and / or laterally of the terminal extensions foldable while the end portions of the component positively engage in the undercuts, so that in the mounted torque transmission device the pressure plate and the component are firmly connected to one another in the axial direction and are secured against rotation with respect to each other in the circumferential direction, and the connection is protected in the radial direction against attacking centrifugal forces.

By these arrangements, a very compact and radial space-saving connection between a pressure plate and a tie rod is made possible. Accordingly, a tie rod, which extends radially within a double clutch over a central, axially fixed counter plate, be connected to a drive motor side arranged pressure plate. The tie rod can be fixed in the axial direction and in the circumferential direction on the pressure plate, so that the pressure plate is coupled in the axial direction of movement for disengaging or engaging the relevant sub-coupling with an associated actuating system and in the circumferential direction, the two interconnected parts against rotation are secured against each other. Axial forces can be transmitted via this connection in both directions, whereby not necessarily an actuating system is necessary, which applies such forces in both directions.

For this purpose, a plurality of attachment points for the pressure plate may be provided on the pressure plate facing side of the tie rod, ie on the drive motor side. In this exemplary embodiment, the tie rod can have a pot-like body in a slightly conical shape. In the body, a plurality of beads are advantageously formed in the axial direction in the tie rod, which form end faces stop surfaces for the pressure plate.

When mounting the designed as a friction clutch Drehmomentübertra- supply device, the pressure plate can be used with their radially offset from their preferably annular body terminal extensions in the tie rod and pushed against these stop surfaces. Tabs, which are formed at the feet of the tie rod, protrude radially in this installed state over the connection extensions of the pressure plate and can then be folded behind the pressure plate. This can be done, for example, by pressing, changing or rolling. Thus, the tie rod and the pressure plate are not only axially but also in the circumferential direction firmly connected to each other, the terminal extensions of the pressure plate in this exemplary embodiment may have lateral bevels to which the folded tie rod material is additionally applied. As a result, the Anpressplattenfortsätze not only axially enclosed by the tie rods, but at least partially in the circumferential direction.

In addition, it is important and advantageous that the tie rod in the entire speed range of the drive shaft and thus the clutch, which withstands radially outward centrifugal force and does not expand radially outward. The joints with the pressure plate should not be able to shift radially outward in the coupling operation. For this purpose, the tie rod near the connection points to the pressure plate have a closed contour over the circumference, which receives centrifugal forces safely.

Alternatively, a connection technique can be selected, which can also absorb forces in the radial direction. Then the tie rod can either absorb the centrifugal forces themselves or the Zugankerfüße be held by the pressure plate. This can be achieved, for example, by means of radial undercuts in the attachment extensions of the pressure plate, into which the tie rod material is molded during assembly, as a result of which the tie rod feet are supported radially on the pressure plate. This eliminates the need for a circumferentially closed contour in the vicinity of the connection. This has the advantage that intermediate spaces between the tie rod feet can be used for other components, for example, in order to connect a central counterplate of the double clutch with a driver ring. By such an arrangement, in which different joints and different components in the circumferential direction next to each other instead of radially superimposed, the radial space requirement of the clutch on the clutch plates can be particularly reduced.

According to another concretized embodiment of the invention, it can be provided that a third pressure plate of a third drive-motor-side partial clutch of a second torque transmission element designed as a double clutch. assigned and can be connected to a second component designed as a pressure pot, wherein formed as a pressure pot second component radially engages over a fourth, triggers the part clutch and an axially stationary second central counter-plate and / or passes through, see to make the connection between the third pressure plate and the second component designed as a pressure pot are arranged and / or configured as follows:

a circumferential groove on the pressure plate, which is effective both in the axial direction and in the radial direction as a support surface for the second component designed as a pressure pot, and / or

a shoulder on the second component facing radial surface of the pressure plate, which serves as a radial support surface for an axially extending Drucktopffuß at the axial end of the second component, and / or

a third, fourth or fifth connecting element of the pressure plate, which has a plurality of first, second, third and / or fourth locking recesses arranged in the body of the pressure plate, and a third, fourth or fifth connecting element of the second component designed as a pressure pot, which has a plurality of having axially offset from the body of this component first, second or third Drucktopffüße, each having at least one axially projecting third, fourth, fifth and / or sixth tab,

in which the pressure plate with the connection recesses can be inserted into the second component designed as a pressure cup during assembly of the torque transmission device and subsequently the tabs can be deformed and applied to the front side of the pressure plate facing away from the component, such that the pressure plate and the pressure cup which are in the assembled torque transmission device formed second component in the axial direction are firmly connected to each other and in the circumferential direction against rotation against each other, and the compound is protected in the radial direction against attacking centrifugal forces.

By this arrangement, a very compact and radial space-saving connection between a pressure plate and a pressure pot is made possible. Accordingly, a pressure plate can be pressed within a dual clutch of an associated actuating system via a pressure pot. If both partial clutches are arranged axially next to one another and both associated actuating clutches System arranged on the same side, ie on the transmission side of the clutch, so engages the pressure pot of those of the two sub-couplings, which faces away from the actuating system, in this embodiment, radially over the other sub-coupling over and through the central counter-plate.

The pressure pot is supported axially in a circumferential groove introduced into the end face of the pressure plate. At this groove, the axial forces that are required to close the clutch can be transferred from the pressure pot to the pressure plate.

At the same time, the groove provides for a radial undercut, by means of which the pressure pot can be supported radially on the pressure plate. So that the pressure pot can not move axially relative to the pressure plate, tabs of the pressure cup run radially outward on the connection element of the pressure plate and are deformed on the other side of the pressure plate during coupling assembly. By this deformation, such as bending, upsetting or spreading, the ends of the pressure pot bottles are applied to the outside of the connecting element of the pressure plate and especially to the gegenplattenferne end face of the pressure plate. As a result, the pressure plate and the pressure pot are firmly connected to one another in this embodiment of the torque transmission device.

Thus, the pressure pot can not rotate relative to the pressure plate, acting in the circumferential direction stop surfaces may be provided on the pressure pot and the pressure plate. This can be achieved, for example, by means of pressure-type top bottles, which can be supported laterally on the connection element of the pressure plate.

The circumferential groove on the pressure plate may alternatively consist of several short areas, which alternatively or additionally can support the pressure pot in the circumferential direction against the pressure plate and thereby prevent it from twisting.

The connection between the pressure plate and the pressure pot can be achieved by various embodiments of connection elements of the pressure plate and to this complementary connection elements of the pressure pot are produced. The connecting elements for the axial force transmission, the axial securing elements for the captive against the pressure or main force direction, the circumferential support and the radial force support can be arranged at all suitable locations of the Drucktopffußes or the pressure pot and are not fixed to a particular arrangement.

For example, in one embodiment, the print top feet may each have a central area for the transmission of the compressive forces and the radial support. Two lateral tabs can take over both the circumferential support, wherein the tabs rest on adjacent guide surfaces of the pressure plate, as well as the axial captive securing the pressure pot against the main force direction. In another embodiment for connecting the pressure plate and pressure pot, the pressure plate may have bores or other recesses through which the tabs of the pressure pot project and can be bent or spread back for attachment. As a result, the deformed material of the pressure pot at the edge of the Anpressplattenaussparung and / or on the front side on the side facing away from the pressure pot side of the pressure plate, tight.

Spreading, thickening, upsetting and flipping the tab halves is particularly well suited to securely fix the pressure pot to round holes in the pressure plate in the axial direction. The necessary slits or longitudinal columns of the pressure top bottles for subsequent spreading can be done either before mounting or during assembly. This connection variant is a particularly cost-effective fastening method for pressure plates, which consist of cast iron.

When forming the tabs during assembly of the torque transmitting device, the borehole edges can advantageously serve as bending edges, which facilitates the assembly. Drilling or otherwise shaped or made Asked through holes in the pressure plate can also be effective as a support of the pressure pot in the radial direction to protect against centrifugal forces and in addition in the circumferential direction as rotation. In other embodiments, a radial protection of the connection against centrifugal forces can alternatively or additionally also be produced by a respective step formed on the pressure plate in the area of the connection elements for each pressure-point foot of the pressure pot. In addition, bearing surfaces can be provided as an aid for the assembly in the vicinity of the elements to be plasticized, ie substantially in the vicinity of the tabs of the pressure pot. For example, the print pot roots may have recesses axially behind the connection tabs. As a result, shortly behind the connecting straps bearing surfaces, where the pressure pot can be supported when the connecting straps are deformed during assembly arise.

As a result, the support is advantageously carried out in the immediate vicinity of the introduction of force, whereby an unwanted deformation of the body of the pressure pot during assembly is excluded. The pressure pot can be connected by means of the connecting elements in the transport state of the clutch unit, when the clutch is not yet mounted with the actuation systems and the pressure pot is not yet pressed against the pressure plate, advantageously captive connected to the rest of the coupling. As the above statements show, the invention relates specifically to a friction clutch, such as a dual clutch in a drive train of a motor vehicle, with at least one connecting device of a pressure plate according to at least one embodiment presented here. The construction concept of the torque transmission device according to the invention can also be realized in a friction brake, which has at least one pressure plate with one of the described connection devices. The invention will be explained in more detail with reference to some embodiments illustrated in the accompanying drawings. In the drawing shows

Fig. 1 is a schematic, half-longitudinal view of a double clutch with a connecting device of a pressure plate according to a first

Embodiment of the invention,

Fig. 2 is a schematic perspective view of the pressure plate together with

Surrounding components according to FIG. 1 seen from a drive motor side,

3a is an enlarged detail view of a connection point of the pressure plate with a tie rod of FIG. 2 before an assembly step,

3b shows the detail of FIG. 3a after assembly,

4 shows a schematic perspective view of a part of a double clutch similar to FIG. 1 with a connecting device of a pressure plate according to a second embodiment,

5 is an enlarged detail view of a connection point of the pressure plate of FIG. 4 in the assembled state,

Fig. 6 is a schematic, half-longitudinal view of a second

Embodiment of a double clutch with a connection device of a pressure plate according to the invention,

7a is an enlarged detail view of a connection point of the pressure plate with a pressure pot according to FIG. 6 before an assembly step,

7b, the detail of FIG. 7a after assembly,

8a is an enlarged detail view of another embodiment of a

Junction of a pressure plate with a pressure pot in front of a

Assembly step,

8b, the detail of FIG. 8a after assembly,

9a is an enlarged detail view of another embodiment of a

Junction of a pressure plate with a pressure pot in front of a

Assembly step, and

Fig. 9b, the detail of FIG. 9a after assembly. The first friction clutch or friction brake device 1 shown in FIG. 1 is designed as a double clutch, which can couple a drive shaft 2 of a drive motor, not shown, via a flywheel 3 with a first transmission input shaft 4 and / or a second transmission input shaft 5 of a transmission (not shown) , The two transmission input shafts 4, 5 are arranged coaxially and radially one above the other. For coupling, a first partial clutch 6a and a second partial clutch 6b are present. The first partial clutch 6a has an axially displaceable first pressure plate 7 and a first clutch disc 8. The first clutch disc 8 is rotatably connected to the first transmission input shaft 4 via a first disc damper 9 integrated therewith. The second partial clutch 6b has an axially displaceable second pressure plate 10 and a second clutch disc 1 1. The second clutch disc 1 1 is rotatably connected to the second transmission input shaft 5 via a second disc damper 12 integrated therewith. The two disc damper 9, 12 allow a limited relative rotational movement between the radially outer part and the radially inner part of the respective clutch disc 8, 1 first

The two partial clutches 6a, 6b have a common first counter-plate 13, which is arranged as an axially fixed central plate between the two clutch discs 8, 1 1. The counter plate 13 is rotatably mounted relative to the transmission input shafts 4, 5, wherein it is supported radially inwardly via a support bearing 14 on the second transmission input shaft 5. On the friction clutch or friction brake device 1 a plurality of first leaf springs 41 and a plurality of second leaf springs 42 are arranged distributed over the circumference, by means of which the two press plates 7, 10 are kept spring-loaded and centered. Thus, the arrangement can build radially small, the leaf springs 41, 42 are not radially outside the clutch plates 8, 1 1 but axially behind the pressure plates 7, 10 are arranged.

The counter plate 13 is composed of two sheet metal parts 15, 16. Each of the two sheet-metal parts 15, 16 has a radially aligned friction surface 17, 18, namely the first sheet metal part 15 a first friction surface 17 and the second sheet metal part 16 a second friction surface 18. The two pressure plates 7, 10 also each have one radially oriented friction surface 19, 20, namely, the first pressure plate 7, a third friction surface 19 and the second pressure plate 10, a fourth friction surface 20th

The counter-plate 13 engages radially outward in the axial direction on the adjacent two clutch plates 8, 1 1 and the two pressure plates 7, 10 away. For this purpose, the first sheet-metal part 15 has a bent first collar 22, which extends axially away from the first friction surface 17 of the counter-plate 13 in the direction of the drive motor and merges axially endwise for connection with a driver ring 23 in a connection geometry or in a connecting element. The driver ring 23 is provided for transmitting torque from the drive shaft 2 of the drive motor, not shown, on the counter-plate 13. The formation of the coupling between the driver ring 23 and the drive motor can be done in a known manner, for example via a spline 32 as shown in Fig. 4, or by means of spring elements between the driver ring 23 and the

Flywheel 3. The illustration in Fig. 1 leaves the exact execution of this coupling open.

The second sheet-metal part 16 of the counter-plate 13 forms the second friction surface 18 of the counter-plate 13 facing the transmission and supports all rotatable parts of the first friction-clutch or friction-braking device 1 via the support bearing 14 on the second transmission input shaft 5. The second sheet-metal part 16 has a bent second collar 25, which extends axially away from the friction surface 18 of the counter-plate 13 in the direction of the transmission and merges axially endwise for connection to a clutch cover 26 in a connection geometry or in a connecting element.

On the one hand, the clutch cover 26 enables a force transmission from a first actuation system 29 to the first pressure plate in the first partial clutch 6a in interaction with a first lever-spring element 27 and a first component 28 designed as a tie rod and connected to the first pressure plate 7 7 for pressing the associated first clutch disc 8 with the counter-plate 13. The clutch cover 26 allows but also in the second part of the clutch 6b in conjunction with a second lever-spring element 30 a Power transmission from a second actuation system 31 to the second pressure plate 10 for pressing the associated second clutch disc 1 1 against the counter-plate 13. For torque transmission of the first part of the clutch 6a, the first clutch disc 8 can be pressed by axial displacement of the zughörigen first pressure plate 7 against the counter-plate 13, whereby in each case a frictional connection to torque transmission can be produced between the compressed first clutch disk 8 and the counterplate 13 and between the compressed first clutch disk 8 and the pressure plate 7. For torque transmission of the second partial clutch 6 b, the second clutch disc 1 1 are pressed by axial displacement of the zughörigen second pressure plate 10 against the counter plate 13, whereby between the compressed second clutch disc 1 1 and the counter plate 13 and between the compressed second clutch disc 1 1 and the Anpressplat - te 10 each a frictional connection for torque transmission can be produced.

In order to fully exploit the advantages of a radial space-saving connection between a pressure plate and its neighboring components in double clutches, it is advantageous to perform other small and compact usually arranged radially outside of the coupling joints. An advantageous embodiment of the connection geometry between the counter-plate 13 and the driver ring 23 on the one hand and between the counter-plate 13 and the clutch cover 26 on the other hand can therefore be additionally provided. A radial space-saving connection geometry between the first pressure plate 7 arranged on the drive side and the first component 28 designed as a tie rod is described in more detail below. As FIG. 1 shows, the component 28 protrudes radially and axially beyond the counterplate 13, but the connection geometry or the connection element of the component 28 is formed radially at the same level as the component 28 and / or partially radially further inwards. In any case, it advantageously does not protrude radially beyond the main body of the component 28 or tie rod. In the embodiment of the first component 28 shown in FIGS. 2, 3a and 3b, this component 28 designed as a tie rod advantageously has a slightly conical shape radially outward. On its transmission side, that is the side of the friction clutch or friction brake device 1, on which the first actuation system 29 and the second actuation system 31 are located, the component 28 changes into a support region 33 for the first lever-spring element 27. On the opposite, drive-side side of the component 28, a first connecting element 21 with a plurality of first Zugankerfüßen 36 is present, which form attachment points for the first pressure plate 7.

The tie rod feet 36 each have an axially projecting first tab 37. In the slightly conical shape of the component 28 a plurality of beads 34 extending in the axial direction are formed in the component 28. At one axial end of the sipes 34, these end faces form radially short abutment surfaces 35 for the pressure plates 7.

The pressure plate 7 has radially outwardly to the connecting element 21 of the component 28 geometrically complementary first connection element 24 with a plurality of the body of the pressure plate 7 radially offset terminal extensions 38. At the lateral ends of the connection extensions 38, first bevels 39a and second bevels 39b are respectively formed in the circumferential direction.

During assembly (see Fig. 3a and Fig. 3b), the pressure plate 7 is inserted with its radially offset from its annular body terminal extensions 38 in the component 28 and pushed against the abutment surfaces 35. The tabs 37 of the component 28, which now protrude radially beyond the terminal extensions 38 of the pressure plate 7, are then folded behind the pressure plate 7 radially inward. This can be done for example by pressing, crimping or rolling. Thus, the component 28 and the pressure plate 7 are not only axially but also circumferentially firmly connected to each other, in this embodiment at the lateral ends of the terminal extensions 38 in the circumferential direction in each case the first bevels 39a and the second bevels 39b formed on which additionally abut the radially inwardly folded tabs 37 of the component 28. As a result, the terminal extensions 38 of the pressure plate 7 are not only axially enclosed by the component 28 but at least partially also in the circumferential direction.

Thus, the connection between the component 28, so the tie rod and the pressure plate 7 can not solve under the influence of the centrifugal force of the rotating assembly speed, in this embodiment, the connecting element 21 on the component 28 in the vicinity of the Anpressplattenbefestigung executed circumferentially closed. Between the tie rod feet 36 intermediate webs 40 are formed for each. These intermediate webs 40, as can be seen in FIGS. 3 a and 3b, are not arched but have a planar design in order to be able to better absorb the centrifugally directed centrifugal force. 4 and FIG. 5 show a similar embodiment, in which, however, the component 28, ie the tie rod, is not peripherally closed in the area of the pressure plate connection and accordingly no intermediate webs 40 are formed. Accordingly, in this embodiment, the component 28 has a second connecting element 43 with a plurality of second tie rod feet 44 which form fastening points for the pressure plate 7. The tie rod feet 44 each have an axially projecting second tab 45. The pressure plate 7 has a second connection element 46 which is complementary to the second connection element 43 of the component 28 and has a plurality of second connection extensions 47 radially offset from the body of the pressure plate 7. First bevels 39a and second bevels 39b are formed at the lateral ends of the terminal extensions 47 in the circumferential direction.

In addition, a radial undercut 48 is formed on the connection extensions 47 in each case. By the radial undercuts 48 in the connecting extensions 47, in which the tab material of the component 28 is formed during assembly, the tie rod feet 44 can be supported radially on the pressure plate 7 to accommodate centrifugal forces. Since no intermediate webs 40 between the tie rod feet 44 are required in this embodiment, arise free Gaps that can be used for other components. 4 shows by way of example how fastening elements 59, which connect the counterplate 13 and the driver ring 23 with one another, are arranged in the circumferential direction between the tie rod feet 44, saving radial space, to approximately the same diameter as the pressure plate connection.

FIG. 6 shows a second friction clutch or friction brake device 49 designed as a double clutch, but not in a three-plate design with two pressure plates 7, 10 and a central counterplate 13, like the first friction clutch or friction brake device 1 according to FIG 1, but is implemented in a four-plate design, wherein the fourth plate is a further counter-plate 50 arranged on the drive side. This friction clutch or friction brake device 49 can couple a drive shaft 2 of a drive motor with a first transmission input shaft 4 and a second transmission input shaft 5 of a transmission via a torsional vibration damper 51 designed as a dual mass flywheel.

For this purpose, a third partial clutch 52a and a fourth partial clutch 52b are provided. The third partial clutch 52a has an axially displaceable third pressure plate 53, a third clutch plate 54 and the further counter plate 50. The further counter-plate 50 is coupled on the drive side with the torsional vibration damper 51. The third clutch plate 54 is rotatably connected to the first transmission input shaft 4. The fourth partial clutch 52b has an axially displaceable fourth pressure plate 55 and a fourth clutch disc 56. The fourth clutch disc 56 is non-rotatably connected to the second transmission input shaft 5.

Furthermore, the two partial clutches 52a, 52b have a common second counter-plate 57. The second counter-plate 57 is arranged axially fixed centrally and in turn is supported via a support bearing 14 on the second transmission input shaft 5 from. The counter-plate 57 has a third collar 58, bent on one side, which extends axially away from the body of the counter-plate 57 in the direction of the drive motor or to the drive shaft 2, thereby axially and radially engaging over the drive-mootor third sub-clutch 52a. The third collar 58 goes axially end for connection to the other counter-plate 50 in a connection geometry not described here in more detail; he therefore has suitable fasteners. In this embodiment, the pressure plates of actuating systems can be pressed via pressure pots. Accordingly, the pressure plate of the motor-proximal third sub-clutch 52a, ie the third pressure plate 53, is axially displaceable by a third actuating system 61 via a second component 60 designed as a pressure pot. The pressure plate of the motor fourth fourth sub-clutch 52b, so the fourth pressure plate 55 is axially displaceable by a fourth actuating system 63 via a further pressure pot 62. To close the third sub-clutch 52a, the associated third clutch disc 54 is pressed between the third pressure plate 53 and the axially outer, further counter-plate 50. For this purpose, the third pressure plate 53 can be axially displaced via the second component 60 designed as a pressure pot by means of the third actuating system 61. To close the fourth sub-clutch 52b, the associated fourth clutch disc 56 is pressed between the fourth pressure plate 55 and the axially central second counter-plate 57. For this purpose, the fourth pressure plate 55 can be axially displaced by the further pressure pot 62 by means of the fourth actuating system 63.

The second component 60, ie the pressure pot of the third sub-clutch 52a, which is further away from the two actuating systems 61, 63, engages axially and radially over the fourth sub-clutch 52b. The second component 60 designed as a pressure pot is supported axially in a circumferential groove 69 introduced into the third pressure plate 53 at the front. By means of this circumferential groove 69, the axial forces required for closing the third partial clutch 52a of the friction clutch or friction brake device 49 designed as a double clutch can be transmitted from the second component 60 to the pressure plate 53. At the same time, the circumferential groove 69 acts as a radial undercut, on which the second component 60 can be supported radially on the pressure plate 53. As a result, the circumferential groove 69 is additionally effective as a centrifugal force backup. The second component 60 is also secured to the third pressure plate 53 so that the component 60 does not act against the main force direction, so in this embodiment, contrary to the closing direction of the pressure plate 53 can solve. This will be discussed later.

In FIGS. 7a and 7b, in FIGS. 8a and 8b and in FIGS. 9a and 9b, three exemplary embodiments of connection geometries or connecting elements between the second component 60 designed as a pressure pot and the third pressure plate 53 are shown in greater detail.

Accordingly, in the case of the connection geometry shown in detail in FIGS. 7a and 7b according to the exemplary embodiment of FIG. 6, the second component 60 designed as a pressure pot has a third connecting element 64. This third connection element 64 comprises a plurality of first pressure-drop feet 65, which extend in the axial direction away from the main body of the second component 60. As seen in the circumferential direction of the second component 60, a third tab 66a is formed on the respective printing-block roots 65 at its one lateral end and a fourth tab 66b is formed on the opposite other lateral end, which project in the axial direction from the printing-pot roots 65. In the circumferential direction between the two tabs 66a, 66b, a central support region 70 is formed, which engages in the mounted state in an adjacent end-side circumferential groove 69 of the third pressing plate 53 and cooperates therewith. In addition, the groove connection acts as a radial support of the second component 60 on the third pressure plate 53 and can thus absorb radial centrifugal forces. All elements that are multiple on the circumference and can transmit radial forces are also able to align the respective adjacent components relative to each other and center.

At the pressure plate 53, a third connecting element 67 is formed, which is geometrically complementary to the connecting element 64 of the second component 60 is formed. This connection element 67 comprises a plurality of first connection recesses 68a and second connection recesses 68b, which are distributed over the outer circumference of the body of the pressure plate 53, so that every End recess 68a, 68b can receive an adjacent tab 66a, 66b of the second component 60.

So that the second component 60 designed as a pressure pot can not move in the axial direction relative to the third pressure plate 53, the tabs 66a, 66b of the second component 60 extend radially outward on the associated connection recesses 68a, 68b of the connection element 67 of the pressure plate 53 and become along the assembly on the other side of the pressure plate 53 deformed (see Fig. 7b). As a result of this deformation, for example bending, upsetting or spreading, the ends of the tabs 66a, 66b are applied to the connection element 67 of the third pressure plate 53 and especially to the end face of this third pressure plate 53. As a result, the third pressure plate 53 and the second component 60 are firmly connected to each other. So that the second component 60 can not rotate in the circumferential direction relative to the third pressure plate 53, it makes sense to provide abutment surfaces acting on the second component 60 and the third pressure plate 53 in the circumferential direction. In the exemplary embodiment according to FIGS. 7a and 7b, this is provided by the tabs 66a, 66b, which can be supported laterally on the connection recesses 68a, 68b. The tabs 66a, 66b thus assume the circumferential support and the axial captive securing of the second component 60.

FIGS. 8a and 8b show a different connection geometry between the second component 60 and the third pressure plate 53. Therein, a fourth connecting element 71 is formed on the second component 60 formed as a pressure pot, which has a plurality of second pressure pad feet 72, one of which Drucktopffuß 72 in Fig. 8a and Fig. 8b is shown by way of example. The printing pot root 72 has a fifth tab 73, which has a trapezoidal cross section and extends in the axial direction away from the main body of the second component 60 in the direction of the adjacent third pressure plate 53. At the third pressure plate 53, a fourth connection element 74 is formed. This fourth connection element 74 has in this embodiment, a plurality of third connection recesses 75, which are formed as approximately square punched. This connection tion 75 take the respectively associated fifth tab 73 during assembly in itself, so that they penetrate the connection recess 75 and bent on the side facing away from the second component 60 on the front side of the contact plate 53 and applied flat, the rounded edge of the Connection recess 75 can be used as a bending edge. As a result, the second component 60 with the third contact plate 53 fixed and captive connected. At the same time, the connection recess 75 as a radial and circumferential support for the second component 60 is effective, so that no additional elements are required. A similar exemplary embodiment with other deformation elements is shown in FIGS. 9a and 9b. Therein, a fifth connecting element 76 is formed on the second component 60 designed as a pressure pot, which has a plurality of third pressure pot feet 77, of which a pressure pot root 77 is shown by way of example in FIGS. 9a and 9b. The second component 60 has a sixth lug 78 which extends in the axial direction away from the main body of the second component 60 in the direction of the adjacent third pressure plate 53. On the third pressure plate 53, a fifth connection element 79 is formed in this embodiment. The fifth connection element 79 has in this embodiment, a plurality of fourth connection recesses 80, which are formed as round holes. The illustrated terminal recess 80 receives the adjacent sixth tab 78 during assembly, so that it projects through the fourth connection recess 80 and on the side facing away from the second component 60 on the front side of the third contact plate 53 is bent and applied flat, wherein the Edge of the fourth connection recess 80 can be used as a bending edge. As a result, the second component 60 with the third contact plate 53 fixed and captive connected. At the same time, the fourth connection recess 80 acts as a radial and circumferential support for the second component 60, so that no additional elements are required for this function. However, the sixth tabs 78 of the second component 60 are not bent in one piece, but spread apart behind the fourth connection recesses 80 (FIG. 9b). The spread-apart plate halves 81 a, 81 b attach themselves to the edge of the fourth connection recess 80 and / or to the third pressure plate. te 53 on the side remote from the second component 60 side. Spread tabs 78 are particularly well suited to securely and firmly fix a component to round holes in the axial direction. In order to spread the tabs 78, they must have been previously generated by columns. This splitting can be done either in advance prior to assembly or in an assembly step during assembly. For example, it is possible to perform the splitting and spreading of the tabs 78 in a single operation.

The third Drucktopffüße 77 of this embodiment have axially behind the tabs 78 each have a recess 82 which can be used to hold and support the component 60 in the bending and / or splitting of the tabs 78 in a mounting device.

FIGS. 9a and 9b show that a radial undercut for supporting the second component 60 in the radial direction can also be formed by a respective shoulder 83 on the third pressure plate 53, against which the respective pressure pot root 77 can rest in the radial direction.

LIST OF REFERENCE NUMBERS

1 First torque transmission device

2 drive shaft

3 flywheel

4 First transmission input shaft

5 Second transmission input shaft

6a First partial clutch

6b Second partial clutch

7 first pressure plate

8 First clutch disc

9 First disc damper

10 second pressure plate

1 1 Second clutch disc

12 second disc damper

13 First counter plate

14 support bearings

15 First sheet metal part

16 Second sheet metal part

17 First friction surface

18 Second friction surface

19 Third friction surface

20 fourth friction surface

21 First connection element

22 First collar

23 driving ring

24 First connection contour

25 second collar

26 clutch cover

27 First lever-spring element

28 First component, tie rods

29 First actuation system

30 Second lever-spring element 31 Second operating system

32 spline

33 circulation area

34 Contour radially inward, bead

35 stop surface

36 First tie rod foot

37 First tab

38 First terminal extension

39a First bevel

39b Second chamfer

40 gutter

41 First leaf spring

42 Second leaf spring

43 Second connecting element

44 Second tie rod foot

45 Second tab

46 Second connection contour

47 Second terminal extension

48 undercut

49 Second torque transmitting device

50 other counter plate

51 torsional vibration damper

52a Third partial clutch

52b Fourth partial clutch

53 Third pressure plate

54 Third clutch disc

55 Fourth pressure plate

56 fourth clutch disc

57 Second counter plate

58 Third collar

59 fastener

60 Second component, pressure pot

61 Third operating system 62 Another pressure pot

63 Fourth actuation system

64 Third connection element

65 First print foot

66a Third tab

66b Fourth flap

67 Third connection contour

68a First connection recess

68b Second connection recess

69 circumferential groove

70 support area

71 Fourth connection element

72 Second print foot

73 Fifth tab

74 Fourth connection contour

75 Third connection recess

76 fifth connection element

77 Third pressure pot foot

78 sixth tab

79 Fifth connection contour

80 Fourth connection recess

81 a First flap half

81 b Second flap half

82 recess

83 paragraph

84 Tangential contact contour at the connection extension

Claims

claims

1 . Torque transmission device (1, 49), comprising a pressure plate (7, 53), which is axially movable arranged and with a component (28, 60) is connectable, and in which this component (28, 60) an actuating system (29, 61) for Actuation of the torque transmission device (1, 49) is assigned,

characterized in that for connecting the component (28, 60) with the pressure plate (7, 53) on the component (28, 60), a connecting element

(21, 43, 64, 71, 76) and on the pressure plate (7, 53) a connecting element (24, 46, 67, 74, 79) are formed and / or attached, such that alone on the connecting element (21, 43, 64, 71, 76) of the component (28, 60) and via the connecting element (24, 46, 67, 74, 79) of the pressure plate (7, 53) the component (28, 60) and the pressure plate (7, 53) are firmly engageable with each other, so that alone by means of the connection of component (28, 60) and pressure plate (7, 53) are transferable between these two forces in both axial directions and / or it is ensured that the component (28 , 60) and the pressure plate (7, 53) can only move together in the axial direction.

2. torque transmission device according to claim 1, characterized in that the connecting element (21, 43, 64, 71, 76) of the component (28, 60) and / or the connecting element (24, 46, 67, 74, 79) of the pressure plate ( 7, 53) are plastically deformable at least at their associated ends, and that by a plastic deformation of the connecting element (21, 43, 64, 71, 76) on the connecting element (24, 46, 67, 74, 79), or vice versa, the connection between the component (28, 60) and the pressure plate (7, 53) can be produced.

3. torque transmission device according to claim 1 or 2, characterized in that the with the pressure plate (7, 53) to be connected component (28, 60) on both axial sides of the pressure plate (7, 53) is at least partially applied, or that with the pressure plate (7, 53) to be connected Component (28, 60) on two surfaces of the pressure plate (7, 53), which point in opposite directions, at least partially applied.

4. torque transmission device according to one of claims 1 to 3, characterized in that the with the pressure plate (7, 53) to be connected component (28, 60) at least partially laterally in the circumferential direction of the connecting element (24, 46, 67, 74, 79 ) of the pressure plate (7, 53) can be applied.

5. torque transmission device according to one of claims 1 to 4, characterized in that the connecting element (24, 46, 67, 74, 79) of the pressure plate (7, 53) or the connecting element (21, 43, 64, 71, 76) of the Component (28, 60) has at least one radial undercut.

6. torque transmission device according to one of claims 1 to 6, characterized in that the connecting element (21, 43, 64, 71, 76) of the component (28, 60) in a directly to the pressure plate (7, 53) adjacent region at least partially circumferential is formed closed.

7. torque transmission device according to one of claims 1 to 6, characterized in that a first pressure plate (7) of a first, drive motor side partial coupling (6a) formed as a double clutch first torque transfer device (1) associated with a trained as a tie rod first component ( 28) is connectable, said first component (28) radially engages over a second, gear-side partial coupling (6b) and an axially fixed first counter-plate (13), and in which for establishing the connection between the first pressure plate (7) and the first component (28) the following is arranged and / or formed:

a first connection element (24) on the pressure plate (7), which has a plurality of radially offset from the body of the pressure plate (7) and each with a first lateral bevel (39a) and a second lateral bevel (39b) and / or a tangential contact contour ( 84) has provided first connection extensions (38), - A first connecting element (21) on the component (28) which is circumferentially closed in the Anpressplattenanbindung and a plurality of the body of the component (28) axially offset first Zugankerfüße (36) each having at least one axially projecting first tab (37) having,

- And a plurality in the component (28) radially inwardly extending contours (34), which axial abutment surfaces (35) for the pressure plate (7) form,

wherein during the assembly of the torque transmission device (1) the pressure plate (7) with the connection extensions (38) can be inserted into the component (28) and applied to the abutment surfaces (35), and then the tabs (37) axially behind the connection extensions ( 38) can be repositioned.

Torque transmission device according to one of Claims 1 to 6, characterized in that a first pressure plate (7) is assigned to a first torque-transmitting device (1) designed as a double clutch and to a first component (28) designed as a tie rod. is connectable, wherein said first component (28) radially engages over a second, gear-side partial coupling (6b) and an axially fixed first counter-plate (13) and / or axially, and in which for establishing the connection between the first pressure plate (7) and the first component (28) is arranged and / or designed as follows:

- A second connecting element (46) on the pressure plate (7), which more of the body of the pressure plate (7) radially offset and each having a radial undercut (48) and each having a first lateral bevel (39 a) and a second lateral bevel ( 39b) and / or a tangential contact contour (84) provided second connection extensions (47),

- A second connecting element (43) on the component (28), which in the region of the Anpressplattenanbindung in the circumferential direction of the component (28) is formed predominantly interrupted, and which a plurality of the body of the component (28) axially offset second Zugankerfüße (44) each having at least one second tab (45) axially projecting thereon,

wherein during the assembly of the torque transmission device (1) the pressure plate (7) with the connection extensions (47) in the component (7) used and on the abutment surfaces (35) can be applied, and then the tabs (45) axially behind the connection extensions (47 ) and / or laterally of the connection extensions (47) can be folded over and thereby engaging end-side areas of the component (28) in a form-fitting manner in the undercuts (48),

so that in the assembled torque transmission device (1) the pressure plate (7) and the component (28) are fixedly connected to each other in the axial direction and against rotation against each other in the circumferential direction, and the connection is protected in the radial direction against attacking centrifugal forces.

Torque transmission device according to one of Claims 1 to 6, characterized in that a third pressure plate (53) is assigned to a third, drive-motor-side partial clutch (52a) of a second friction torque transmission device (49) designed as a double clutch and with a second component designed as a pressure pot ( 60) is connectable, wherein formed as a pressure pot second component (60) radially overlaps a fourth, gear side of the partial clutch (52b) and an axially fixed second central counter-plate (57) and / or passes through, wherein for establishing the connection between the third pressure plate (53) and designed as a pressure pot second component (60) arranged and / or formed:

- A circumferential groove (69) on the pressure plate (53) which is effective both in the axial direction and in the radial direction as a support surface for the pressure element designed as a second component (60), and / or

a shoulder (83) on the second component (60) facing radial surface of the pressure plate (53), which serves as a radial support surface for a Axially extending Drucktopffuß (77) at the axial end of the second component (60) is used, and / or

a third, fourth or fifth connection element (67, 74, 79) of the pressure plate (53), which has a plurality of first, second, third and / or fourth connection recesses (68a, 68b, 75, 80) arranged in the body of the pressure plate (53) has, as well

- A third, fourth or fifth connecting element (64, 71, 76) of the formed as a pressure pot second component (60) which a plurality of the body of this component (60) axially offset first, second or third Drucktopffüße (65, 72, 77) each having at least one third, fourth, fifth and / or sixth tab (66a, 66b, 73, 78) axially projecting thereon, wherein during assembly of the torque transmission device (49) the pressure plate (53) with the connection recesses (68a, 68b, 75 , 80) can be inserted into the second component (60) designed as a pressure pot, and subsequently the tabs (66a, 66b, 73, 78) can be deformed and applied to the front side of the pressure plate (53) facing away from the component (60),

so that in the mounted torque transmission device (49) the pressure plate (53) and the pressure element formed as a second component (60) are firmly connected in the axial direction and against rotation in the circumferential direction against each other, and the compound is protected in the radial direction against attacking centrifugal forces.

Torque transmission device (1, 49), designed as a friction brake device or as a dual clutch of a drive train of a motor vehicle, with at least one connecting device of a pressure plate (7, 53) according to at least one of the preceding claims.