coupling

Abstract

Coupling (1, 1a) with a lamellar carrier (2, 2a) and with a support element (3), wherein the lamellar carrier (2, 2a) has axial grooves (4) and toothed areas (5) remaining between the axial grooves (4), wherein an annular groove (7) is at least partially formed in the toothed areas (5), wherein the support element (3) has a toothed section (8), and wherein the support element (3) engages at least partially in the annular groove (7) after a circumferential rotation with the toothed section (8), wherein the support element (3) has at least one locking element (9) as an integral component, and wherein the locking element (9) is designed and / or arranged such that, after the circumferential rotation of the support element (3) with the aid of the locking element (9), a functionally effective locking connection is formed between the support element (3) and the lamellar carrier (2), thereby securing the support element (3) against further rotation. characterized bythat the toothing (8) has several teeth (8a), wherein the locking element (9) is essentially positioned between two teeth (8a) and is designed as a type of spring tongue, and that the lamellar carrier (2) has at least one open edge recess (10) to enable the insertion of the locking element (9) into its initial installation position before the rotation of the support element (3) in the circumferential direction into its final installation position, wherein the lamellar carrier (2) forms and / or has a recess into which the locking element (9) at least partially engages and / or engages after the rotation of the support element (3) in the circumferential direction, so that the anti-rotation protection of the support element (3) is thereby realized.

Description

coupling

[0001] The invention relates to a coupling with the features of the preamble of claim 1.

[0002] The coupling comprises a friction coupling with a plate carrier and at least one support element. The support element is arranged on the plate carrier and is axially secured in a ring groove by a form-fit connection. The support element can, for example, be designed as a support disc or the like.

[0003] From DE 1 152 895 A, a coupling with a lamellar carrier and a support element in the form of a pressure plate is known. The lamellar carrier has toothed sections, with the pressure plate being axially fixed within these toothed sections. The pressure plate has toothing over a portion of its thickness, corresponding to the toothing of the lamellar carrier. An annular groove is provided in the toothed sections of the lamellar carrier. The pressure plate is inserted into the toothed sections of the lamellar carrier with its toothed section and is then axially fixed in the annular groove by a rotation of approximately half a tooth pitch. To secure the pressure plate against further rotation, set screws are radially screwed into the plane of the annular groove of the lamellar carrier so that they engage in tooth gaps of the pressure plate.In another embodiment, further twisting is prevented by inserting sheet metal pieces into adjacent recesses in the pressure plate and the lamella carrier, with these sheet metal pieces being secured by axial screws. However, this makes assembly very complex and also expensive.

[0004] A clutch with a plate carrier and a support element is known from US Patent 2006 / 0027435 A1. The plate carrier has toothed sections. The support element is designed as an annular support disc. Teeth are formed on the outer circumference of the support disc. The plate carrier is designed as an outer plate carrier. The outer plates are supported on the outer plate carrier. Corresponding inner plates are supported on an input shaft. The input shaft serves as the inner plate carrier. A pressure plate is arranged on the input shaft, supporting the plate assembly axially. On the outer circumference of the input shaft, several splined teeth are spaced apart in a first, front section. In a rear, second section of the input shaft, only half as many splined teeth are arranged as in the first section. The front and rear sections are separated from each other by a toothless annular groove.A support device in the form of a pressure plate with a retaining ring is arranged in the rear section of the input shaft. The pressure plate can be slid onto the input shaft and axially secured by twisting.

[0005] In DE 10 2014 205 064 A1, a clutch for a drive train of a motor vehicle is presented, comprising at least one outer lamella carrier with at least one outer lamella and at least one inner lamella carrier with at least one inner lamella, wherein the at least one outer lamella carrier has a groove into which a pressure ring for supporting an actuating force can be attached with a bayonet fitting.

[0006] DE 10 2010 044 379 A1 relates to a clutch, in particular for a transmission of a motor vehicle, preferably a dual clutch for an automatic or automated dual-clutch transmission, with at least one friction clutch, wherein the friction clutch is connected or connectable to a motor shaft on the one hand and to a transmission input shaft on the other, wherein a lamellar carrier is associated with the friction clutch, wherein the friction clutch has a lamellar pack arranged on the lamellar carrier, wherein the lamellar pack is supported in the axial direction by a support device, wherein the support device has at least one support ring, wherein the support ring has several teeth, wherein the lamellar carrier has several engagement openings, wherein the teeth engage in the engagement openings.The access openings extend from an inner to an outer side of the lamellar carrier, with the teeth passing through the access openings and supporting the lamellar carrier on its outer side.

[0007] DE 10 2008 052 452 A1 relates to a power transmission device comprising at least one hydrodynamic component and a device for at least partially bridging the power transmission via the hydrodynamic component by means of an actuating device, comprising an actuating device which can be actuated via a chamber which can be pressurized with pressure medium, wherein at least one spring unit is interposed between the actuating device and the device for at least partially bridging the hydrodynamic component.

[0008] From DE 10 2007 031 963 A1 a clutch is known, in particular for a transmission of a motor vehicle, preferably a dual clutch for an automatic or automated dual-clutch transmission, with at least one friction clutch, wherein the friction clutch can be connected or is connected on one side to a motor shaft and on the other side to a transmission input shaft, with at least one lamellar carrier and with a driven disc in rotationally fixed engagement with the lamellar carrier, wherein the lamellar carrier has an annular groove and the driven disc is secured to the lamellar carrier by a retaining ring engaging in the annular groove and wherein an anti-rotation device secures the retaining ring in the annular groove against rotation.The anti-rotation device is provided as a separate retaining component, and the retaining component is additionally designed and / or arranged in such a way that the retaining ring is secured against radial displacement from the annular groove and / or against rotation in the circumferential direction in the annular groove.

[0009] Finally, a coupling is known from JP 3 696 664 B2, wherein an anti-rotation device for a support element is implemented by inserting a separate element, in particular a stop bolt, into an axial groove of the lamellar carrier in order to clamp the support element in a certain rotated position in its installation position.

[0010] From the generic German patent DE 10 2007 027 120 A1, a clutch for a motor vehicle transmission, namely in particular a dual clutch for an automatic or automated dual-clutch transmission, is known, wherein the dual clutch has two friction clutches. The friction clutches can be connected to a motor shaft on one side and to a transmission input shaft on the other. An outer plate carrier and a plate pack arranged on the outer plate carrier are provided. The plate pack is supported on a support element in the form of a support disc. The outer plate carrier has an annular groove. The support element has teeth that engage in the annular groove. The plate carrier is corrugated and accordingly has axial grooves connected to the annular groove, open towards the end face of the plate carrier, and toothed areas remaining between the axial grooves in which the annular groove or the respective sections of the annular groove are formed.The teeth of the support element, which engage in the annular groove, are positioned in the assembled position, after a corresponding rotation in the axial direction, behind or within the toothed area(s), particularly on the end face, of the lamella carrier. To secure the support disc or support element against further rotation, an additional clamping element is arranged between the teeth of the support element. This anti-rotation device or clamping element is additionally locked to the support element by a snap-fit ​​connection.

[0011] This aforementioned generic coupling is not yet optimally designed. Providing the anti-rotation device requires additional assembly tools, testing tools, and, in particular, the corresponding anti-rotation components in the form of clamping elements. Additional assembly time is also required for installing and verifying the anti-rotation device.

[0012] The invention is therefore based on the objective of designing and further developing the generic coupling from which the invention is based in such a way that a coupling that is easy to manufacture and easy to assemble is provided, in particular reducing the number of components and the associated assembly effort as well as the associated costs accordingly.

[0013] This problem underlying the invention is now initially solved by a coupling with the features of claim 1.

[0014] The support element initially comprises at least one locking element, preferably distributed along its circumference, and preferably several, in particular three, locking elements. The locking element(s) is / are designed and / or arranged such that, after the support element is rotated circumferentially by means of the locking element(s), one or more functional locking connections are formed between the support element and the lamella carrier. Due to the design of the functionally effective locking connection(s), the support element is then secured against further rotation.The primary advantage is that no additional separate components, particularly no additional clamping element as previously required in the prior art, are needed. This clamping element, which had to be mounted in a separate step to provide anti-rotation protection for the support element, is now integrated into the support element itself, creating a functionally effective snap-fit ​​connection. The number of assembly steps is reduced, and the assembly of the support element and the entire coupling is correspondingly simplified, thus lowering overall costs.Furthermore, the respective locking element is essentially formed between two teeth of the toothing of the support element, in particular as a kind of spring tongue, whereby there are different embodiments for such a locking element, which will be explained in more detail below.

[0015] Furthermore, the following principle applies to the locking element or the locking elements provided on the support element: after the support element is rotated circumferentially, the respective locking element at least partially engages with a spring action and / or engages with a spring action in a recess of the lamella carrier. The recess into which the respective locking element engages can, however, have different designs. For example, this recess can already be formed by an existing axial groove in the lamella carrier, either a radially outwardly open axial groove or a radially inwardly open axial groove.

[0016] The respective locking element is provided on the support element in a specific radial first position (e.g. instead of a tooth) or in a specific radial second position, in particular essentially in the middle between two teeth that are usually provided.

[0017] The respective locking element itself can also be designed differently; in particular, it is at least partially hook-shaped and has a hook-shaped head area.

[0018] Furthermore, it is conceivable that the annular groove, or at least a corresponding section of the annular groove, may additionally have at least one axially extending – first – recess to enable the engagement of the locking element. Preferably, the locking element is then designed to correspond to this, in particular having a head area corresponding to the recess of the annular groove in order to enable a corresponding locking / engagement.

[0019] In a further advantageous embodiment, the annular groove, in addition to the first recess already mentioned above, also has a second recess extending axially, wherein the first and second recesses are essentially opposite each other or are essentially only "virtually" separated by the annular groove. Preferably, the locking element is then designed such that it interacts with the first and second recesses accordingly, so that the support element is secured in both directions of rotation after the locking element has engaged. For this purpose, the locking element can be essentially T-shaped in the head region or at least partially U-shaped in the head region, in which case it has at least two corresponding legs or two separate areas.The lamellar carrier therefore has the respective first and / or second recess mentioned above, wherein this first and / or second recess is provided in the area of ​​a section of the annular groove, in particular widening or enlarging the respective section of the annular groove at least partially in the respective axial direction accordingly.

[0020] In essence, the locking element is spring-loaded in all versions, so that locking of the locking element is ensured, in particular due to a spring preload that is applied or exists at least shortly before locking.

[0021] In particular, the support element is now designed as a support disc and serves to axially support the lamellar package and / or provides an axial stop for an actuating piston.

[0022] It is conceivable that the lamellar carrier is designed as an external lamellar carrier, with the toothing of the support element being external; the latter is the preferred embodiment. Alternatively, the lamellar carrier can also be designed as an internal lamellar carrier, with the toothing of the support element then being internal. This depends on the specific design / application of the lamellar carrier and the support element.

[0023] In particular, the clutch is designed as a multiple clutch, especially as a dual clutch for the dual-clutch transmission of a motor vehicle. However, any other clutch, especially a friction clutch, can also advantageously incorporate or be designed in the support elements described here.

[0024] As a result, the aforementioned disadvantages have been avoided and corresponding advantages have been achieved.

[0025] There are now numerous possibilities for advantageously designing and further developing the coupling according to the invention. For this purpose, reference may first be made to the claims subordinate to claim 1. Several preferred embodiments of the coupling are explained in more detail below with reference to the drawing and the accompanying description. The drawing shows: Fig. 1 In schematic representation, an enlarged area of ​​a coupling is shown in section, with a support element inserted here into the lamellar carrier, in particular into the outer lamellar carrier, in the initial installation position, namely before the rotation of the support element in the circumferential direction into its final installation position, Fig. 2 a schematic representation according to Fig. 1. However, after the support element has been rotated in the circumferential direction and engages in the respective annular groove of the tooth areas of the lamellar carrier, here the outer lamellar carrier, i.e., the support element is in its final installation position, Fig. 3 in schematic representation a first embodiment of a support element with a locking element, wherein the locking element is provided at a specific first position instead of the otherwise usual positioning of a tooth of the support element, Fig. 4 in schematic representation the locking mechanism of the in Fig. 3 shown support element with an external lamella carrier, Fig. 5a, Fig. 5b schematically depicts an outer lamella carrier from the side ( Fig. 5a) or in a slightly perspective representation ( Fig. 5b), where an open edge recess is visible (as a “mounting gap”) for inserting the locking element into its initial installation position (before the support element is rotated circumferentially into its final installation position), in particular for the in Fig. Support element shown in 6a / 6b, Fig. 6a, Fig. 6b schematically shows a further embodiment of a support element with a locking element, partially depicted from the front in the initial installation position ( Fig. 6a), i.e. before the locking element engages, as well as in a schematic representation from the side (see Fig. 6b) the support element with the locking element in schematic representation, Fig. 7 in schematic representation the in Fig. 6a shown support element or locking element in the locked position, namely the support element in the final installation position, wherein the locking element is locked into an axial groove, in particular into a radially inwardly open axial groove of the outer lamella carrier (after a corresponding specific rotation of the support element), Fig. 8a, Fig. 8b in schematic representation from the front a support element in a further embodiment with a locking element ( Fig. 8a) or in an enlarged, slightly perspective view ( Fig. 8b), Fig. 9 in schematic representation the in Fig. 8a or 8b shows the support element in the engaged state of the locking element in the lamella carrier from the side, Fig. 10a / 10b another embodiment of a lamellar carrier, in particular for another embodiment of the support element, in schematic representation in section from the side ( Fig. 10a) or in enlarged partial representation ( Fig. 10b), namely with corresponding additional axial recesses (compared to the otherwise usual ring groove), as well as Fig. 11a, Fig. 11b schematically shows another embodiment for a support element with a further locking element from above ( Fig. 11a) or enlarged in part from the side ( Fig. 11b), wherein Fig. 12 the locking of the in Fig. 11a or 11b shown support element or locking element in the in Fig. The 10 illustrated lamellar carriers show and Fig. 13a, Fig. 13b shows a further embodiment of a support element with a further locking element from the side in schematic representations ( Fig. 13a) or enlarged in part from above ( Fig. 13b) represent, and wherein Fig. 14 the locking / engaging of the in the Fig. 13a and Fig. 13b shown support element or locking element in the in the Fig. 10 ( Fig. The lamellar carrier shown in 10a or 10b) is shown.

[0026] The Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13 to Fig. Figure 14 shows essential parts or components of a clutch 1, in particular a dual clutch 1a, for a transmission, in particular for a dual clutch transmission of a motor vehicle not shown in detail here.

[0027] The clutch 1, in particular the double clutch 1a, has a lamellar carrier 2, which is located here in the Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13 to Fig. 14 is designed in particular as an external lamella carrier 2a, as well as a support element 3. This is also particularly evident in the Fig. 1, Fig. 2, Fig. 3 etc. The recognizable support element 3 is in particular designed as a type of support element ring disc 3a.

[0028] Preferably, the clutch 1 shown here, in particular the dual clutch 1a, is designed as a dual clutch for a motor vehicle with two friction clutches. The clutch 1, in particular the dual clutch 1a, is used especially for a motor vehicle transmission, namely preferably for an automatic or automated dual-clutch transmission (not shown in detail). The two respective friction clutches can be connected, on the one hand, to a motor shaft (not shown), which can be driven by an internal combustion engine and / or an electric motor. On the other hand, the two respective friction clutches can each be connected to a transmission input shaft (also not shown).

[0029] The one in the Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13 to Fig. The lamellar carrier 2, at least partially depicted in Figure 14, is specifically designed as an outer lamellar carrier 2a. Here, the lamellar carrier 2, and in particular the outer lamellar carrier 2a, is corrugated. The lamellar carrier 2 has corresponding axial grooves 4 and toothed sections 5 remaining between the axial grooves 4. The axial grooves 4 are formed radially inward on the outer circumference of the lamellar carrier 2, here the outer lamellar carrier 2a, so that the axial grooves 4 are open in a radially inward direction, as can be seen from the corresponding figures. The toothed sections 5 are radially convex inward in the case of the lamellar carrier 2, here the outer lamellar carrier 2a, whereby in particular the area of ​​the axial grooves 4 formed on the inner circumference of the outer lamellar carrier 2a is substantially radially convex outward, but the axial grooves 4 are open radially inward, as already mentioned above.On the other hand, the radially inwardly curved tooth areas 5 on the outer surface of the circumference of the lamellar carrier 2, here the outer lamellar carrier 2a, form external axial grooves 6 that are open radially outwards. As can be seen in particular from the . Fig. 1 and Fig. Figure 2 shows the lamellar carrier 2, here the outer lamellar carrier 2a, which is corrugated accordingly. This allows corresponding lamellars, preferably outer lamellars of a lamellar pack (not shown), to be arranged axially displaceably but rotationally fixed on the lamellar carrier 2, here on the outer lamellar carrier 2a, and in particular to be inserted into the outer lamellar carrier 2a. These outer lamellars are then layered with inner lamellars (also not shown). The outer lamellars are formed by externally toothed lamellars arranged on an outer lamellar carrier 2a, and the inner lamellars are formed by internally toothed lamellars arranged on an inner lamellar carrier (not shown). The inner lamellar carrier is effectively connected, in particular, to a corresponding transmission input shaft, and the outer lamellar carrier 2a can be effectively connected, in particular, to a motor shaft.

[0030] To actuate the clutch 1, in particular the dual clutch 1a or the corresponding friction clutch, an actuating piston (not shown in detail) is provided, wherein the actuating piston is axially displaceable. The actuating piston can compress the multi-plate pack, thereby closing the clutch 1, in particular the corresponding friction clutch of the dual clutch 1a, and then transmitting torque from the drive side to the driven side. The multi-plate pack of the clutch 1, in particular the multi-plate pack of at least one of the friction clutches of a dual clutch 1a, is then axially supported on the side facing away from the actuating piston by means of the support element 3, so that the actuating piston can effectively actuate the multi-plate pack. The support element 3 serves as an abutment point.In the illustrated, preferred embodiment, the support element 3 is designed as an annular support disk, in particular as a support element ring disk 3a. The support element ring disk 3a has a disk area 3b, wherein the lamellar package is supported, in particular, by the disk area 3b.

[0031] In the Fig. Figures 1 to 3, 6 to 8, and 11 show the support element 3 only in a highly schematic form. For a further description of the support element 3, reference may now be made in particular to the figures mentioned above, but also to the other figures: The support element 3 is now axially load-bearing and arranged on the lamellar carrier 2, here on the outer lamellar carrier 2a. The lamellar carrier 2, here the outer lamellar carrier 2a, has at least one annular groove 7 for this purpose. The support element 3 has a toothed section 8, whereby the support element 3, with its toothed section 8, engages in the annular groove 7 in the assembled state. The annular groove 7 is formed sectionally, in particular as a partial annular groove in the toothed sections 5 of the lamellar carrier 2, here the outer lamellar carrier 2a. Thus, an annular groove 7 is formed at least partially on the lamellar carrier 2, here on the outer lamellar carrier 2a, in particular in the respective sections of the toothed sections 5, here especially in the outer lamellar carrier 2a, extending circumferentially "radially inside" in the respective toothed sections 5.To mount the support element 3, the toothing 8 is inserted into the end-face open axial grooves 4 of the lamellar carrier 2, here the outer lamellar carrier 2a, and as soon as the axial position of the annular groove 7 is reached, the support element 3 is rotated or twisted in the circumferential direction so that the toothing 8 of the support element 3 engages at least partially in the annular groove 7 or in the respective sections of the annular groove 7 (cf. . Fig. 1, where the assembly of the support element 3 in its initial installation position is shown, with the illustration in Fig. 2, where the final installation position of the support element 3 is shown after the rotation of the support element 3 in the circumferential direction).

[0032] In the final installed position of the support element 3, the toothing 8 of the support element 3 overlaps – viewed in the axial direction – at least partially, and in particular completely, with the tooth sections 5 of the lamellar carrier 2, here the outer lamellar carrier 2a, so that, for example, an axial force applied by an actuating piston leads to a support of the toothing 8 of the support element 3 against the tooth sections 5 of the lamellar carrier 2, here the outer lamellar carrier 2a, or rather, a corresponding axial support is realized. Therefore, after a rotation in the circumferential direction (after a rotation from the initial installed position), the support element 3 engages with its toothing 8 in the annular groove 7 or in the respective annular groove sections of the tooth sections 5 of the lamellar carrier 2, here the outer lamellar carrier 2a.

[0033] This shows Fig. 1 the support element 3 in its initial installation position, namely after the insertion of the support element 3 into the lamella carrier 2, here into the outer lamella carrier 2a, namely after the insertion of the support element 3 into the axial grooves 4 of the lamella carrier 2, wherein the Fig. Figure 2 shows the final installation position of the support element 3 after the corresponding rotation. In its axial direction, the support element 3 is therefore at least partially positively locked, in particular by the respective support on the walls of the annular groove 7 (not described in detail here) or the respective walls of the annular groove sections formed in the toothed areas 5 of the lamellar carrier 2.

[0034] The support element 3 has at least one locking element 9, wherein the locking element 9 is designed and / or arranged such that, after rotation of the support element 3 in the circumferential direction by means of the locking element 9, a functionally effective locking connection is formed between the support element 3 and the lamella carrier 2, thereby securing the support element 3 against further rotation (further rotation and / or reversal). Here, the support element 3 now has at least one locking element 9 as an integral component, with the aid of which a functionally effective locking connection between the support element 3 and the lamella carrier 2, here in particular the outer lamella carrier 2a, can be realized.This functionally effective locking connection provides anti-rotation protection for the support element 3, thereby preventing the aforementioned disadvantages, in particular eliminating the need for the additional clamps required in the prior art to implement anti-rotation protection, thus reducing the number of components of the coupling 1, especially the double coupling 1a, and thereby also improving the assembly effort and reducing assembly costs.

[0035] Preferably, the support element 3 has not only one locking element 9, but in particular three locking elements 9 distributed around the circumference of the support element 3 at correspondingly uniform intervals. However, additional locking elements, i.e., more than three locking elements 9, are also conceivable. The locking elements 9, or the respective locking connections between the support element 3 and the lamella carrier 2, in particular the outer lamella carrier 2a, which are also realized thereby, can now be implemented in different ways; this will be shown in particular below with reference to the Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13 to Fig. 14 will now be explained in more detail: All in the Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13 to Fig. The embodiments shown in Figure 14 have the advantage that, in particular, no additional components are required to provide an anti-rotation device for the support element 3. This results in a coupling 1, especially a double coupling 1a, that is easy to manufacture and assemble. The various configurations of the snap-fit ​​connections between the support element 3 and the lamellar carrier 2, in particular the outer lamellar carrier 2a, which are implemented here via the snap-fit ​​elements 9, have the advantage that, in particular, further anti-rotation components such as clamps, clips, or the like are unnecessary. It is therefore possible for the support element 3 to be secured against further rotation or unrotation by the respective snap-fit ​​connection, in particular by means of the snap-fit ​​elements 9.

[0036] In general, the following applies to the respective different designs of the effective locking connection: The toothing 8 of the support element 3 essentially comprises several teeth 8a. The teeth 8a are arranged at equal intervals along the circumference of the support element 3. The respective locking element 9 is positioned essentially between two teeth 8a and is designed as a type of spring tongue (either one-piece or two-piece).

[0037] Thus, the lamella carrier 2, here the outer lamella carrier 2a, can have at least one open edge recess 10 per locking element 9 for specific embodiments of locking elements 9 to enable the insertion of the support element 3, and in particular, with three support elements 3, also three open edge recesses 10 to enable the insertion of the support elements 3, specifically for inserting the respective locking element 9 into its initial installation position (before the rotation of the support element 3 circumferentially into its final installation position). The latter applies in particular to the ones described in the Fig. 6 and Fig. 7 illustrated embodiment of the support element 3, wherein the corresponding open edge recess 10 is located in the Fig. 5a or 5b is shown.

[0038] All locking connections essentially share the characteristic that the lamella carrier 2, here the outer lamella carrier 2a, forms and / or has a recess into which the respective locking element 9, after the support element 3 has been rotated circumferentially, at least partially engages and / or engages, thus ensuring the anti-rotation of the support element 3. This will be explained in more detail below. For example, the locking element 9 can engage or engage in an axial groove 4 or 6 of the lamella carrier 2, here in particular the outer lamella carrier 2a, specifically in an axial groove 6 open radially outwards or in an axial groove 4 open radially inwards of the lamella carrier 2, in particular the outer lamella carrier 2a.

[0039] In the various embodiments of the locking element 9, it is also partly different that the locking element 9 is provided on the support element 3 essentially in a certain radial first position, in particular instead of a tooth 8a, or (as an alternative) that the locking element 9 is provided in a certain radial second position essentially in the middle between two teeth 8a that are usually provided; this will also be explained in more detail below.

[0040] The different embodiments of the locking elements 9 and the corresponding effective locking connections to be functionally realized thereby may now be discussed based on the Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13 to Fig. 14 will be discussed in more detail: This shows Fig. 3 and Fig. 4 a first embodiment of a locking element 9. The one shown here in the Fig. 3 and Fig. 4. The recognizable locking element 9 is, in particular, at least partially hook-shaped and has, in particular, a hook-shaped head area. Furthermore, the [element] in the Fig. 3. A detent element 9, integrally formed on the support element 3, is provided in a specific radial first position, namely in place of the position of a tooth (8a) of the support element 3 that would otherwise normally be provided there. As shown in Fig. As can be seen in Figure 4, the hook-shaped head area of ​​the locking element 9 is in particular arranged or designed essentially outside the plane of the teeth 8a of the support element 3.

[0041] During the assembly of the in Fig. The support element 3, as shown in Figure 3, is now inserted into the lamellar carrier 2, specifically into the outer lamellar carrier 2a, with its toothing 8, namely with its teeth 8a, into the respective radially inwardly open axial grooves 4 of the lamellar carrier 2. When the support element 3 with its teeth 8a essentially reaches the plane of the annular groove 7 or the respective sections of the annular groove 7, the locking element 9, being essentially spring-loaded, can then be slightly displaced or pressed axially, particularly with an auxiliary tool, so that it is also essentially completely positioned in the plane of the annular groove 7 or in the plane of the respective annular groove section. With a corresponding rotation of the support element 3 in the circumferential direction, the locking element 9 can then also be inserted into the annular groove 7 or into the respective section of the annular groove 7.Additional locking elements, designed as mirror images, can be provided to ensure rotational stability in both circumferential directions. For this purpose, further corresponding recesses are provided. It is also conceivable that these recesses are provided in each section of the annular groove, which would also facilitate the installation of the support element.

[0042] As the Fig. As shown in Figure 4, the respective tooth area 5 of the lamella carrier 2 for the locking element 9 now has not only the corresponding annular groove 7 or the respective annular groove section, but also an axially extending – first – recess 11. In other words, the annular groove 7 or the corresponding section of the annular groove 7 has at least one axially extending first recess 11 to enable the engagement of the locking element 9, as shown in Figure 4. Fig. 4 shown. The latter causes the locking element 9, in particular the hook-shaped head area of ​​the locking element 9, to engage in the first recess 11, particularly in a spring-like manner, as shown in Fig. 4 shown, so that an effective snap connection is formed between support element 3 and lamellar carrier 2.

[0043] During the Fig. 3, Fig. 4 to Fig. In the embodiment shown in Figure 5, the tooth regions 5 of the lamellar carrier 2 are essentially all designed in the same way. However, it is also conceivable that the [the following] Fig. In the additional first recess shown in Figure 4, it is not formed in the toothed area of ​​the lamellar carrier, but rather this toothed area, assigned to the respective locking element, extends significantly further radially inwards than the other toothed areas of the lamellar carrier, so that the locking element then engages in a radially outward-opening axial groove of the lamellar carrier, the radially outward-opening axial groove being formed by a radially inward-lying toothed area of ​​the lamellar carrier. In the alternative described here, which is not explicitly shown, the respective locking element, in particular a hook-shaped head area, engages in a radially outward-opening axial groove of the lamellar carrier, so that no first recess is formed in the annular groove or...in the corresponding section of the annular groove, whereby preferably the respective tooth areas of the lamellar carrier extend further radially inwards, as described above.

[0044] The Fig. 5a and Fig. Figure 5b now shows corresponding “assembly gaps” for the introduction of the locking element 9, as in the further embodiment shown in the Fig. 6a, Fig. 6b and Fig. As shown in Figure 7, the following are necessary: ​​Corresponding mounting gaps, namely in particular the open edge recesses 10, are provided here for the locking element 9 or for the respective locking elements 9. These are shown in the Fig. 5a and Fig. The open edge recess 10 shown in Figure 5b, which allows the insertion of the support element 3, in particular the insertion of the locking element 9 into its initial installation position, wherein the edge recess 10 is provided in a toothed area of ​​the lamella carrier 2, is particularly necessary here because, as the Fig. Figure 6a shows that the locking element 9 is positioned here in a radial second position, namely essentially centrally between two teeth 8a of the toothing 8 of the support element 3, which are usually provided. Therefore, this edge recess 10 is required here to insert the support element 3 into the lamellar carrier 2.

[0045] Fig. Figure 6a shows the arrangement of the locking element 9 in the corresponding radial second position, as previously described, wherein Fig. 6b shows the locking element 9 or the support element 3 from the side, in particular partially cut away. As the Fig. As shown in Figure 6a, the support element 3 with the toothing 8, namely with the teeth 8a, is inserted into the radially inwardly open axial grooves 4 of the lamellar carrier 2, whereby the locking element 9 or the respective locking elements 9 are inserted into the open edge recess 10 provided in the toothed area 5 of the lamellar carrier 2, i.e., into the mounting gap. When the teeth 8a are essentially in the plane of the annular groove 7, the resilient locking element 9 can also be moved into the plane of the annular groove 7, either with an auxiliary tool and / or by a pressing force, so that the support element 3 is then inserted accordingly into its position in the Fig. The position shown in Figure 7 can be rotated. Here, however, the support element 3 is rotated so far that the teeth 8a of the toothing 8 come into contact with the annular groove 7 or with the sections of the annular groove 7 of the tooth areas 5 of the lamellar carrier 2, whereby the locking element 9 can then – after the rotation – engage in a radially inwardly open axial groove 4 of the lamellar carrier 2, as shown in Figure 7. Fig. Figure 7 shows this. This means that when positioning the support element 3, as shown in Fig. As shown in Figure 7, in its final installation position, the locking element 9, due to the spring force, shifts axially within the radially inwardly open axial groove 4 so that it lies outside the plane of the annular groove 7, thus achieving the anti-rotation device for the support element 3. In this position, the side walls of the locking element 9 prevent rotation of the support element 3 due to the inner walls of the radially inwardly open axial groove 4 coming into contact with the side walls of the locking element 9, or rather, further rotation of the support element 3 is blocked. This is how, in the example of the Fig. 4 by means of the particularly hook-shaped head area of ​​the locking element, namely here by means of the corresponding side wall, a further rotation is blocked by means of the first recess 11.

[0046] The Fig. 8a, Fig. 8b and Fig. Figure 9 shows a further embodiment of an effective snap-fit ​​connection between a support element 3 and a lamella carrier 2. As the Fig. As can be seen from Figure 8a, the locking element 9 is essentially provided in a specific radial first position, in particular in place of a tooth 8a on the outer circumference of the support element 3. As the Fig. As can be further seen in 8b, the locking element 9 is designed as a kind of spring tongue and extends essentially radially obliquely outside the plane of the teeth 8a of the toothing 8 of the support element 3. In particular, this is shown here in the Fig. 8b and in the Fig. The locking element shown in Figure 9 has a constant cross-section. Non-uniform cross-sections are also conceivable, depending on the specific embodiment.

[0047] As the Fig. Figure 9 further shows that the corresponding tooth area 5 of the lamella carrier 2 also has a first recess 11 into which the locking element 9 can engage. Here too, the first recess 11 is provided or formed in the area of ​​the annular groove or in the corresponding section of the annular groove 7 to allow the insertion of the locking element 9 in the corresponding axial direction. The first recess 11 thus extends essentially axially to the annular groove 7 or has a transition area to the annular groove 7, as essentially in the embodiment shown in Figure 9. Fig. 4 too.

[0048] The in the Fig. 8a and Fig. The locking element 9 shown in 8b has a region that essentially corresponds to the recess 11 of the annular groove 7. In the embodiment shown in the Fig. 8a and Fig. 8b the locking element 9 has a substantially constant cross-section.

[0049] As the Fig. Figure 9 shows that the locking element 9 engages, at least with its upper area, in the first recess 11 when the support element 3 has been rotated circumferentially into its final installation position. This blocks further rotation and / or reversal of the support element 3, since the side walls of the locking element 9 would then (with further rotation) come into contact with, or are already partially in contact with, the corresponding sections of the outer walls of the radially outwardly open axial grooves 6 of the lamella carrier 2.

[0050] The Fig. 10, Fig. 11, Fig. 12, Fig. 13 to Fig. Figure 14 shows two further embodiments for producing an effective snap-fit ​​connection between the support element 3 and the lamella carrier 2, here in particular the outer lamella carrier 2a. These two embodiments have in common that the respective sections of the annular groove 7, which are intended to engage with the snap-fit ​​element 9, not only have a first recess 11 extending axially to one side, but also a second recess 12 extending in the other axial direction. (Alternatively, the terms "first / second, in particular axially extended section of the annular groove" are also conceivable or possible for the terms "first / second recess"). This is particularly evident from the Fig. 10, in particular from the enlarged representation of the Fig. 10b accordingly.

[0051] Furthermore, also in combination the Fig. 11 and Fig. 12. It is evident that, in particular, the first recess 11 is open in the direction of the insertion opening, i.e., in the direction of the opening where the toothing 8 or the teeth 8a of the support element 3 are inserted into the respective sections of the annular groove 7, whereas the second recess 12 is closed in both directions of the annular groove 7, i.e., in the direction of the insertion opening and in the direction of the opening of the annular groove 7 opposite the insertion opening. The first and second recesses 11 and 12 therefore have, in particular, corresponding partially axially formed walls, in particular the first recess 11 having at least one axially extending wall and the second recess 12 having, in particular, two axially extending walls, as shown in the Fig. 10a and Fig. 10b or as also from the Fig. 12 and Fig. 14 is evident.

[0052] Both locking elements 9, i.e. the one from the Fig. 11a, Fig. 11b or 12 visible locking element 9 and the one from Fig. 13a, Fig. 13b and Fig. The common feature of the locking element 9 shown in Figure 14 is that each locking element 9 is essentially designed to interact with the first and / or the second recess 11 or 12 in such a way that the support element 3 is secured against further rotation after the locking element 9 has engaged, particularly in both directions. Furthermore, before locking, each locking element 9 is partially or temporarily spring-loaded or pre-tensioned in the direction of the first recess 11 and / or in the direction of the second recess 12, whereby the elements shown in the Fig. 11a and Fig. 11b or 13a and Fig. The locking elements shown in 13b can be designed accordingly, which may be explained in more detail below:

[0053] This shows Fig. 11a and Fig. 11b, in particular the Fig. Figure 11b shows an enlarged representation of a locking element 9, which is essentially T-shaped in the head area, wherein the Fig. 13a especially here the Fig. Figure 13b shows an enlarged representation of a locking element 9, which is formed in two parts, at least in the head region, namely having two axially offset legs 9a and 9b, and therefore can be formed at least partially U-shaped. As the overall view of the Fig. 10, Fig. 11 to Fig. As can be seen from Figure 12, the support element 3 is first axially inserted into the lamellar carrier 2, as already described above, so that the toothing 8, i.e., the teeth 8a of the support element 3, are inserted into the radially inwardly open axial grooves 4 of the lamellar carrier 2, here the outer lamellar carrier 2a. The moment the teeth 8a lie essentially in the same plane as the annular groove 7 or the respective sections of the annular groove 7, the support element 3 can then be rotated accordingly. As shown in Figure 12, the support element 3 is then inserted axially into the lamellar carrier 2, so that the toothing 8, i.e., the teeth 8a of the support element 3, are inserted into the radially inwardly open axial grooves 4 of the lamellar carrier 2, here the outer lamellar carrier 2a. The moment the teeth 8a lie essentially in the same plane as the annular groove 7 or the respective sections of the annular groove 7, the support element 3 can then be rotated accordingly. Fig. As can be seen in Figure 11b, the locking element 9 is T-shaped, particularly in its head region, and its end regions lie slightly outside the plane of the teeth 8a in the axial direction. A substantially triangular design of the locking element 9 is also conceivable. If the support element 3 with such a locking element 9 is now rotated into its final installation position in the plane of the annular groove 7, the locking element 9, being spring-loaded, can initially be easily rotated or shifted with a tool so that the first end section of the locking element 9 is inserted into the first recess 11, which is open to the insertion opening. Further rotation of the support element 3 then causes the first end section of the locking element 9 to come into contact with the end of the first recess 11, as shown in Figure 11b. Fig. 12 is evident, wherein the opposite end section of the locking element 9 engages accordingly in the second recess 12. The correspondingly effective locking connection of the locking element 9 in the first and second recesses 11 and 12 is shown in Fig. 12 is shown, wherein the end areas of the locking element 9 prevent further rotation of the support element 3, as the first and second recesses 11 and 12 provide corresponding stops.

[0054] That's how it is in the Fig. 13a and Fig. 13b, in particular in an enlarged representation of the Fig. The locking element 9 shown in Figure 13b, which is at least partially designed in two parts, essentially has two legs 9a and 9b that are radially parallel to each other but axially offset from each other or are axially curved in opposite directions. The two legs 9a and 9b, as well as the locking element 9, are essentially designed to be resilient.

[0055] The in the Fig. 11 and Fig. The detent elements 9 shown in Figure 13 are essentially provided in a specific first radial position in place of a tooth 8a of the toothing 8 of the support element 3, so that in the initial installation position, when the support element 3 is inserted into the lamellar carrier 2, in particular into the outer lamellar carrier 2a, the detent elements 9 are also inserted into a radially inwardly open axial groove 4 of the lamellar carrier 2. After the corresponding rotation in the plane of the annular groove 7, the corresponding detent connection then becomes effective.

[0056] During the Fig. 13a and Fig. In the embodiment of the locking element 9 shown in Figure 13b, the first leg 9a is first inserted into the first recess 11, while the second leg 9b, so that the locking element 9 with both legs 9a and 9b can be inserted into the annular groove 7, is preferably pressed or moved against the spring force with the aid of an auxiliary tool. When the first leg 9a rests against the stop or with play at the end of the first recess 11, the second leg 9b is also engaged in the second recess 12, so that an anti-rotation device for the support element 3 is realized in both directions of rotation, as shown in the Fig. 14 is evident.

[0057] The support element 3 serves to axially support a lamellar package and / or forms an axial stop for an actuating piston, as explained at the beginning.

[0058] The lamellar carrier 2 can be configured as an external lamellar carrier 2a, as preferably shown here, in which case the toothing of the support element 3 is configured as external toothing. Alternatively, the lamellar carrier 2 can also be configured as an internal lamellar carrier, in which case the toothing of the support element is configured as internal toothing. The corresponding locking elements or the implementation of the correspondingly effective locking connections are then implemented accordingly, as described above, in which case the annular groove or the respective sections of the annular groove are formed in radially outer tooth regions of an internal lamellar carrier.

[0059] In particular, the clutch 1 is designed here as a dual clutch 1a for a dual-clutch transmission of a motor vehicle, wherein the dual clutch 1a then has at least two friction clutches, in particular two clutches 1 with the aforementioned features, in particular the respective support element 3 with the integrated detent element 9. The support element 3 with the detent element 9, which is in particular spring-loaded, therefore forms an essential component of the corresponding clutch 1.

[0060] The support element 3 does not necessarily have to be ring-shaped, but can also be cranked in the disc area 3b.

[0061] It is also conceivable, as already indicated or illustrated in the various figures, that several support elements 3 are arranged in the lamellar carrier 2 in the manner described. For example, two lamellar packs can be arranged on one lamellar carrier, with each lamellar pack having a corresponding support element. In particular, the lamellar pack is axially supported by its assigned support element. The lamellar packs can then be arranged axially one behind the other; the latter depends on the respective application and the specific embodiment of the coupling 1. Reference symbol list 1 clutch 1a Dual Clutch 2 lamella carriers 2a Outer slat carrier 3 support element 3a Support element ring disc 3b Disc area 4 axial grooves, radially open inwards 5 tooth areas 6 axial grooves, radially open to the outside 7 Ring groove 8 gear teeth 8a teeth 9 locking element 9a thigh 9b thigh 10 Edge recess 11 first exception 12 second exclusion

Claims

Coupling (1, 1a) with a lamellar carrier (2, 2a) and with a support element (3), wherein the lamellar carrier (2, 2a) has axial grooves (4) and toothed areas (5) remaining between the axial grooves (4), wherein an annular groove (7) is at least partially formed in the toothed areas (5), wherein the support element (3) has toothing (8), and wherein the support element (3) engages at least partially in the annular groove (7) after a circumferential rotation with the toothing (8), wherein the support element (3) has at least one locking element (9) as an integral component, and wherein the locking element (9) is designed and / or arranged such that, after the circumferential rotation of the support element (3) with the aid of the locking element (9), a functionally effective locking connection is formed between the support element (3) and the lamellar carrier (2), thereby securing the support element (3) against further rotation. is characterized bythat the toothing (8) has several teeth (8a), wherein the locking element (9) is essentially positioned between two teeth (8a) and is designed as a type of spring tongue, and that the lamellar carrier (2) has at least one open edge recess (10) to enable the insertion of the locking element (9) into its initial installation position before the rotation of the support element (3) in the circumferential direction into its final installation position, wherein the lamellar carrier (2) forms and / or has a recess into which the locking element (9) at least partially engages and / or engages after the rotation of the support element (3) in the circumferential direction, so that the anti-rotation protection of the support element (3) is thereby realized. Coupling according to claim 1, characterized in that the locking element (9) engages or engages in an axial groove (4, 6) of the lamellar carrier (2), in particular an axial groove (6) open to the radial outside or an axial groove (4) open to the radial inside of the lamellar carrier (2). Coupling according to one of the preceding claims, characterized in that the locking element (9) is provided on the support element (3) essentially in a certain radial first position (instead of a tooth (8a)) or that the locking element (9) is provided in a certain radial second position essentially in the middle between two teeth (8a) that are usually provided. Coupling according to one of the preceding claims, characterized in that the locking element (9) is at least partially hook-shaped, in particular having a hook-shaped head area. Coupling according to one of the preceding claims, characterized in that the annular groove (7) or at least a corresponding section of the annular groove (7) has at least one axially extending -first- recess (11) to enable the engagement of the locking element (9). Coupling according to one of the preceding claims, characterized in that the locking element (9) has a region substantially corresponding to the recess (11) of the annular groove (7), in particular a corresponding head region. Coupling according to one of the preceding claims, characterized in that the annular groove (7) or at least a corresponding section of the annular groove (7) has at least one axially extending - second - recess (12) to enable the engagement of the locking element (9), in particular wherein the first recess (11) is open in the direction of the insertion opening of the annular groove (7) and the second recess (12) is closed in both directions of the annular groove (7). Coupling according to one of the preceding claims, characterized in that the locking element (9) is essentially designed and interacts with the first and / or second recess (11, 12) in such a way that the support element (3) is secured in both directions of rotation after the locking element (9) has engaged. Coupling according to one of the preceding claims, characterized in that the locking element (9) is partially spring-loaded or pre-tensioned in the direction of the first recess (11) and / or partially in the direction of the second recess (12). Coupling according to one of the preceding claims, characterized in that the locking element (9) is T-shaped in the head area or is at least two-part in the head area, in particular having two legs (9a, 9b). Coupling according to one of the preceding claims, characterized in that support element (3) serves for the axial support of a lamellar pack and / or that the support element (3) provides an axial stop for an actuating piston. Coupling according to one of the preceding claims, characterized in that the lamellar carrier (2) is designed as an outer lamellar carrier (2a), wherein the toothing of the support element (3) is designed as an external toothing (8), or that the lamellar carrier is designed as an inner lamellar carrier and the toothing of the support element is designed as an internal toothing. Dual clutch (1a), in particular for a dual clutch transmission of a motor vehicle, characterized in that at least one clutch (1), in particular a friction clutch, is provided according to one of claims 1 to 12.

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