DE102022115740A1 - Clutch with stepped adjuster - Google Patents

Abstract

The invention relates to an adjusting device (1) for a clutch (15), having a first ramp ring (2), having an adjusting ramp (2.1) and a drive ramp (2.2); a second ramp ring (5), comprising a first counter ramp (5.1); and a sleeve element (7) with a second counter ramp (7.1), the second ramp ring (5) being movably mounted on the sleeve element (7), the sleeve element (7) and the second ramp ring (5) being operatively connected, and wherein the Contour (2.4) of the adjustment ramp (2.1) and the counter contour (5.4) are designed in the form of complementary steps. It is provided that at least the steps of the contour (2.4) of the adjustment ramp (2.1) or at least the steps of the counter contour (5.4) of the first counter ramp (5.1) have a first step area (S.1) and a second step area (S.2). have, wherein the first step region (S.1) has a first slope (a.1) and wherein the second step region (S.2) has a second slope (a.2) that is opposite to a ramp slope.

Description

The invention relates to an adjusting device for compensating for wear on a clutch, so that the clutch can always be actuated by an actuating device via the same actuation path. The invention further relates to a clutch with such an adjusting device, in particular a dry friction clutch, with the help of which a torque flow can be established or interrupted in a drive train of a motor vehicle.

For example from DE 10 2008 051 100 A1 A friction clutch with wear adjustment is known.

There is a constant need to design adjustment devices in such a way that they adjust safely and precisely, with the adjustment ramp having a secure self-locking mechanism.

It is the object of the invention to show measures that enable such precise adjustment while at the same time having a high level of self-locking of the adjustment ramp.

The problem is solved by an adjusting device with the features of claim 1 and by a coupling with the features of claim 10. Preferred embodiments of the invention are specified in the subclaims and the following description, each of which individually or in combination represents an aspect of the invention can.

A solution to the problem is achieved by an adjusting device for a clutch with an actuation direction, having a first ramp ring arranged coaxially around a longitudinal axis for disengaging the clutch, the first ramp ring having an adjusting ramp and a drive ramp in a transverse direction to the actuation direction, one coaxially around the longitudinal axis and a second ramp ring movable in the actuation direction for actuation by a release bearing, comprising a first counter ramp, the first counter ramp being formed with a counter contour to a contour of the adjustment ramp, the first counter ramp being supported with its counter contour on the contour of the adjustment ramp, a coaxial A sleeve element movable around the longitudinal axis and in the transverse direction with a second counter-ramp, wherein the second counter-ramp can be placed with a counter-contour to a contour on the drive ramp in the actuation direction, the drive ramp and the second counter-ramp being designed to contact each other in the actuation direction when there is a contact force to slide in the transverse direction, the second ramp ring being mounted at least indirectly on the sleeve element in the actuation direction and in the transverse direction, the sleeve element and the second ramp ring being operatively connected in the transverse direction, and the contour of the adjustment ramp and the counter contour of the first counter ramp in the form of complementary Stages are formed. It is provided that at least the steps of the contour of the adjustment ramp or at least the steps of the counter contour of the first counter ramp have a first step area and a second step area, the first step area having a first gradient and the second step area having a second gradient opposite to a ramp gradient having.

As far as elements are designated using numbering, for example “first component”, “second component” and “third component”, this numbering is intended purely for differentiation in the designation and does not represent any dependence of the elements on one another or a mandatory order of the elements This means in particular that a device does not have to have a “first component” in order to be able to have a “second component”. The device can also include a “first component” and a “third component”, but without necessarily having a “second component”. Several units of an element of a single numbering can also be provided, for example several “first components”.

A usual clutch has two pressure plates, one of which is connected to the input shaft and one to an output shaft, and which are in frictional connection with one another via friction elements when the clutch is closed. When the clutch is closed, the distance between the pressure plates from one another is determined by the thickness of the friction elements. If the friction elements wear out, the distance between the pressure plates reduces when the clutch is closed. As a result, a lever element of the clutch, which is for example a release lever or a plate spring tongue, travels a further distance between the opened and closed clutch as wear increases. If no adjusting device is provided on the clutch, an upstream actuating device, such as a clutch pedal, must also cover this further path. In order to prevent the actuating device from having to cover this extended path and instead only having to cover an essentially the same path, an adjusting device according to the invention is arranged between the clutch and the actuating device.

When the second ramp ring is actuated on the input side in the actuation direction For example, via a clutch pedal, the second ramp ring moves the first ramp ring in the actuation direction via the first counter ramp, which rests on the adjustment ramp, which then disengages the clutch on the output side, for example on a release lever or a plate spring tongue. Insofar as the first counter-ramp rests against the adjustment ramp in a self-locking manner, the transmission of such a movement or an associated disengagement force between the first counter-ramp and the adjustment ramp in the actuation direction is possible without the first counter-ramp sliding off the adjustment ramp and subsequently becoming in the Would move transversely. During actuation and the associated movement of the first ramp ring, the drive ramp moves away from the second counter-ramp, which is fixed in the direction of actuation, i.e. immovable.

If the actuation is ended, the clutch closes again, for example by means of a spring element, and the first ramp ring is pushed back until the friction elements of the clutch rest against each other again. The drive ramp and the second counter ramp also come into contact with each other again. Basically, the drive ramp and the second counter ramp together form an inclined plane.

As soon as wear occurs on the clutch or the friction element(s) of the clutch, a force results between the second counter-ramp and the drive ramp in the actuation direction, since the clutch pushes the first ramp ring back a further distance than before, but the second counter-ramp is immobile in the actuation direction is. This force creates a sliding of the second counter ramp on the drive ramp in the transverse direction and thus a force in the transverse direction. The sliding of the second counter-ramp on the drive ramp causes the resulting force to be transmitted in the transverse direction to the first counter-ramp of the second ramp ring.

The solution to the problem described above now includes the teaching that the contour of the adjustment ramp and the counter contour on the first counter ramp are designed in a stepped manner. The grading initially ensures that the contact surfaces over which the adjustment ramp and the first counter-ramp rest against each other have good self-locking properties. A respective stage is composed of at least a first stage area and a second stage area. The first step area has a gradient that essentially corresponds to the ramp gradient of the adjustment ramp or first counter ramp or only deviates slightly from it. The ramp slope is understood to be the slope of the respective ramp averaged over all stages. The second step region has a slope that is opposite to the slope of the first step region. In this way, the second step area acts as a blocking area which can only be overcome by the first counter-ramp if the adjustment ramp and the first counter-ramp are sufficiently spaced apart from one another in the actuation direction. Due to the design with a first step area and a second step area, a relatively steep slope can be selected for the second step area and thus for the blocking area, by means of which the first counter-ramp is centered on the respective step. After an adjustment process, the steps come to rest on one another with a precise fit, or when the load is placed again in the axial direction, the steps slide off one another through the second step area, so that the steps are centered on one another. This ensures safe and precise positioning of the first counter ramp on the adjustment ramp. Since the second step area is relatively short, i.e. does not extend over the entire step, despite the steep incline, no excessive height is created, over which the adjustment ramp must be away from the first counter ramp in the direction of actuation in order to enable adjustment.

The axial length in the actuation direction of the first ramp ring and the sleeve element and the axial length of the first ramp ring and the second ramp ring always have an almost identical, fixed difference due to the steps, given the same pitch of the adjustment ramp and the drive ramp. When the clutch is closed, the second ramp ring always remains in the same position in the actuation direction and does not pass on an extended path resulting from wear to an actuation device.

The steps of the contour of the adjustment ramp and the steps of the first counter ramp of the second ramp ring preferably have a first step area and a second step area. The adjustment ramp and the first counter-ramp are therefore designed in the same way and have step areas that match one another. The contours then rest against one another on surfaces that are parallel to one another, so that the adjustment ramp and the first counter-ramp rest particularly securely against one another. A particularly secure self-locking, a particularly secure locking effect and in particular a particularly good centering are then achieved through the second step areas.

The first slope is preferably designed parallel to the ramp slope or with an angle of less than 5° relative to the ramp slope. The first slope is then opposite, for example inclined by 5° to 10° in the transverse direction. The first step area then does not contribute, or only contributes insignificantly, to the height that a gap between the adjustment ramp and the first counter-ramp must reach in the actuation direction so that an adjustment, i.e. a rotation of the adjustment ramp relative to the first counter-ramp, can be achieved. The second slope then preferably forms an angle of at least 5°, preferably of at least 10°, to the transverse direction, which, however, is offset in the opposite direction from the transverse direction compared to the angle of the first slope. With such a second slope, good centering of the first counter ramp on the respective step and a good locking effect can be achieved. The second step area is chosen to be so long, depending on the second gradient, that the resulting height of the second step area, which has to be overcome during adjustment, is still sufficiently easy to overcome.

Furthermore, the steps of the contour of the adjustment ramp and/or the steps of the first counter ramp of the second ramp ring each preferably have a third step area, the third step area having a third slope. The third slope is preferably designed parallel to the ramp slope or with an angle of less than 5° relative to the ramp slope. The first slope is then inclined, for example, by 5° to 10° relative to the transverse direction. The third slope is particularly preferably designed parallel to the first slope. The third step area, like the first step area, then contributes little or no contribution to the height that a gap between the adjustment ramp and the first counter-ramp must reach in the direction of actuation so that adjustment, i.e. rotation of the adjustment ramp relative to the first counter-ramp, can be achieved. Furthermore, the third step area forms a contact area for the first step area of the respective counter contour. The steps of the adjustment ramp and the first counter ramp then lie against each other on the one hand with their respective second step areas and alternately with a first step area on a third step area. A large contact surface is then created overall, so that low pressure and thus low deformation of the steps is achieved. There is then a reduced risk of wear or damage to the steps.

Furthermore, the second step region is preferably shorter than the first step region. This results in a particularly good compromise between centering, self-locking and the height to be overcome during adjustment.

In one embodiment, the operative connection between the sleeve element and the second ramp ring in the transverse direction is preferably carried out by a rigid connection between the second counter-ramp and the first counter-ramp, which can be provided in particular by an intermediate element. This variant is structurally easy to manufacture and assemble. In an alternative embodiment, the sleeve element and the second ramp ring are operatively connected to one another in the transverse direction by a spring element. Particularly preferably, an intermediate element with a pin is mounted in a recess in the sleeve element, the spring element being supported with one end on the intermediate element and with another end on the second ramp ring. The second ramp ring is therefore not directly, but indirectly, operatively connected to the sleeve element. The force resulting between the ramp rings is stored in the spring element. The spring element can be, for example, a tension or compression spring, which is subjected to either tension or compression force. If a certain degree of wear is reached and the force stored in the spring element exceeds a threshold range, the spring element discharges the stored energy and ensures that the first counter ramp of the second ramp ring also slides off the adjustment ramp of the first ramp ring. As a result, the distance between the first and the second ramp ring changes to approximately the same extent as the distance between the first ramp ring and the sleeve element, namely until an adjustment by the spring element through the second step areas of the stepped adjustment ramp and the stepped first counter ramp is stopped. The steps in particular prevent the second ramp ring from rotating back relative to the first ramp ring. Once a position has been reached in which the adjustment ramp is no longer rotated relative to the first counter-ramp, the adjustment ramp and the first counter-ramp are centered on one another by the second gradient.

Particularly preferably, the drive ramp and the adjustment ramp have the same ramp gradient, with the ramp gradient of the adjustment ramp averaged over the steps being compared with the gradient of the drive ramp. In this way, the axial difference in length between the first ramp ring and the second ramp ring on the one hand and the first ramp ring and the sleeve element on the other hand does not change significantly and the second ramp ring is securely held in a constant position. However, a small but negligible axial length difference arises from the gradual adjustment of the first counter ramp on the adjustment ramp. Furthermore, a force resulting from wear between the drive ramp and the second counter-ramp always leads to the same one Movement in the transverse direction of the sleeve element and the second ramp ring. This ensures reliable adjustment, both with minor and advanced wear.

The task is further solved by a clutch for selectively connecting or disconnecting an input shaft and at least one output shaft with a previously described adjusting device. The adjuster and the clutch can be constructed integrated as a unit and share a common housing. In this way, the number of components can be reduced, so that fewer component tolerances interact. The adjusting device is alternatively provided as an independent component and arranged on a receptacle of the clutch.

Furthermore, the clutch preferably has a plurality of partial clutches for several output shafts, with at least one partial clutch having a previously described adjusting device. For example, such a clutch is provided for an agricultural machine or construction machine, with a first output shaft serving to drive the machine and being, for example, the input shaft of a drive transmission and a second shaft being a PTO shaft for a secondary application such as driving a cable winch or a lifting device. In one embodiment, only the first partial clutch for the first output shaft is designed or equipped with an adjusting device, since this is subject to greater wear due to frequent use, especially under load. In such an embodiment, in which the adjusting device is designed coaxially to the longitudinal axis in a cylindrical coordinate system, the first ramp ring, the sleeve element and / or the second ramp ring can have recesses distributed around the circumference for the passage of elements of the second partial clutch in order to ensure a particularly to create a compact coupling.

• 1a: eine Schnittansicht einer erfindungsgemäßen Nachstellvorrichtung gemäß einem ersten Beispiels in einem Neuzustand bei eingerückter Stellung;
• 1 b: eine Schnittansicht der erfindungsgemäßen Nachstellvorrichtung gemäß dem ersten Beispiel in einem Neuzustand bei ausgerückter Stellung;
• 1 c: eine Schnittansicht des ersten Beispiels der Nachstellvorrichtung in einem verschlissenen Zustand bei eingerückter Stellung;
• 2a: eine perspektivische Ansicht eines ersten Rampenrings bei einer Nachstellvorrichtung;
• 2b: eine perspektivische Ansicht eines zweiten Rampenrings bei dem ersten Beispiel einer Nachstellvorrichtung;
• 2c: eine perspektivische Ansicht eines Hülsenelements des ersten Beispiels der Nachstellvorrichtung;
• 3: eine perspektivische Ansicht einer Kupplung;
• 4 eine Detailansicht der Konturen einer Nachstellrampe und der ersten Gegenrampe;
• 5a eine Detailansicht der Konturen einer Nachstellrampe und der ersten Gegenrampe während eines ersten Schritts eines Nachstellvorgangs;
• 5b eine Detailansicht der Konturen einer Nachstellrampe und der ersten Gegenrampe während eines zweiten Schritts eines Nachstellvorgangs;
• 5c eine Detailansicht der Konturen einer Nachstellrampe und der ersten Gegenrampe während eines dritten Schritts eines Nachstellvorgangs;
• 5d eine Detailansicht der Konturen einer Nachstellrampe und der ersten Gegenrampe während eines vierten Schritts eines Nachstellvorgangs.

The invention is explained below by way of example with reference to the accompanying drawings using preferred exemplary embodiments, whereby the features shown below can represent an aspect of the invention both individually and in combination. Show it:

• 1a : a sectional view of an adjusting device according to the invention according to a first example in a new condition with the engaged position;
• 1 b : a sectional view of the adjusting device according to the invention according to the first example in a new condition with the disengaged position;
• 1c : a sectional view of the first example of the adjuster in a worn condition with the engaged position;
• 2a : a perspective view of a first ramp ring in an adjusting device;
• 2 B : a perspective view of a second ramp ring in the first example of an adjuster;
• 2c : a perspective view of a sleeve element of the first example of the adjusting device;
• 3 : a perspective view of a clutch;
• 4 a detailed view of the contours of an adjustment ramp and the first counter ramp;
• 5a a detailed view of the contours of an adjustment ramp and the first counter-ramp during a first step of an adjustment process;
• 5b a detailed view of the contours of an adjustment ramp and the first counter-ramp during a second step of an adjustment process;
• 5c a detailed view of the contours of an adjustment ramp and the first counter-ramp during a third step of an adjustment process;
• 5d a detailed view of the contours of an adjustment ramp and the first counter ramp during a fourth step of an adjustment process.

The 1 a until 1c each show a sectional view of a first example of an adjusting device 1, the representation being abstracted to the essential functional elements that describe the invention. The adjustment device 1 has a first ramp ring 2 with a stepped adjustment ramp 2.1 and a drive ramp 2.2 without steps, in the form of a sensing ramp. The first ramp ring 2 is movably mounted in an actuation direction B on a guide part 3 in the form of a support disk and presses on the output side on a lever element 4, which is designed here as a release lever and is pivotally mounted on a housing, not shown. The support disk is also attached to the housing in a translational and rotational manner. In the actuation direction B in front of the first ramp ring 2, a second ramp ring 5 with a stepped first counter ramp 5.1 is arranged. The second ramp ring 5 is movably mounted in the actuation direction B on a sleeve element 7 which has a second counter-ramp 7.1, the second counter-ramp 7.1 being designed without steps. The husk Element 7 is fixed in the actuation direction B and is mounted on the support disk 3 so that it can rotate about a longitudinal axis A.

The steps of the counter contour 5.4 of the first counter ramp 5.1 are complementary to the steps of the contour 2.4 of the adjustment ramp 2.1, whereby in the 1a until 2c the steps are only shown schematically and not with their actual geometry. Only in the assembled state do the steps of the counter contour 5.4 of the first counter ramp 5.1 rest at least partially on the steps of the contour 2.4 of the adjustment ramp 2.1 and with this form an inclined plane consisting of several steps. The plane is oriented in a helix shape, i.e. in such a way that its ramp gradient runs both in the direction of the longitudinal axis A and partially around the longitudinal axis A in the transverse direction. The second counter ramp 7.1 rests on the drive ramp 2.2 and with it also forms an inclined plane, which is also helical, the slope of which also runs both in the direction of the longitudinal axis A and partially around the longitudinal axis A in the transverse direction.

The 1a until 1c Illustrate in particular an adjusting device 1 once in the engaged and disengaged position, each in a new state and once in the engaged position in a worn state of the clutch 15. Engaged means that no force is exerted by a release bearing 16 on the second ramp ring 5, thus the clutch 15 engaged position transmits force, for example, from a flywheel, not shown, of an internal combustion engine to a transmission, not shown. When the position is disengaged, this flow of force is interrupted.

The first ramp ring 2, the second ramp ring 5 and the sleeve element 7 are designed as circular disks or as a sleeve, which are arranged coaxially to one another with the longitudinal axis A, with a transverse direction Q corresponding to a circumferential direction around the common longitudinal axis A of the components. The ramps 5.1, 7.1 extend accordingly over a trajectory that follows the circumferential direction in relation to the longitudinal axis A. The sleeve element 7 is fixed to the support disk 3 in the actuation direction B, which is here parallel to the longitudinal axis A, and is provided with a recess 7.2, into which at least one pin 5.3 of the second ramp ring 5 engages. However, the fit between pin 5.3 and recess 7.2 is a clearance fit, with one end of the spring element 9 being arranged on the pin 5.3 and the other end on the inside of the recess 7.2.

The 2a until 2c show the individual components of the adjusting device 1, where in 2a the first ramp ring 2 is shown with the stepped adjustment ramp 2.1 and the drive ramp 2.2. It can be seen that the ramps 2.1, 2.2 are formed from several equally designed ramp elements 2.6 distributed around the circumference. In this example, the adjustment ramp 2.1 is formed from six ramp elements 2.6 and the drive ramp 2.2 from three ramp elements 2.5. Other divisions 5 of the adjustment ramp 2.1 and the drive ramp 2.2 are also possible. The first ramp ring 2 also has recesses 2.3 in the circumferential direction, which are partly provided for the passage of components of a partial clutch, which is designed together with a partial clutch of the adjusting device 1, and partly for the passage of lever elements 4 of its own partial clutch.

2 B shows the second ramp ring 5 according to the first embodiment with the first stepped counter ramp 5.1, which is divided into six here according to the six ramp elements of the adjustment ramp 2.1. The second ramp ring 5 also has recesses 5.5 for components of a further partial clutch to pass through.

2c shows the sleeve element 7 according to the first embodiment with the second counter ramp 7.1, which is divided into three.

3 shows a clutch 15 with an adjusting device 1, the clutch 15 having two partial clutches 15.1 and 15.2. The adjusting device 1 is assigned to the first partial clutch 15.1, which has three lever elements 4 in the form of release levers, which are actuated via the adjusting device 1 as described above. The second partial clutch 15.2 also has three lever elements 4 in the form of release levers, which can reach through the recesses 2.3, 5.5 when actuated and can be actuated directly without an upstream adjusting device 1. The lever elements 4 of the first partial clutch 15.1 also reach through recesses 2.3 on the first ramp ring 2.

4 shows the actual geometry of the steps in detail. A respective step of the adjustment ramp 2.1 has a step length S, the step length S being divided into a first step area S.1, a second step area S.2 and a third step area S.3. The first step area S.1 has a first gradient a.1, which corresponds to the ramp gradient and therefore occupies an angle of approximately 10° with respect to the transverse direction Q. The second step region S.2, in contrast, has an opposite second slope a.2, which also occupies an angle of approximately 10 ° with respect to the transverse direction Q, but which is removed in the opposite direction to the transverse direction Q compared to the first slope a.1. The third step range S.3 has a third slope a.3, which corresponds to the first slope a.1. The first counter ramp 5.1 is designed to complement the adjustment ramp 2.1.

In the 5a until 5d an adjustment process is illustrated schematically. In an initial state that is in 5a is shown, the contour 2.4 of the adjustment ramp 2.1 and the counter contour 5.4 of the first counter ramp 5.1 lie against each other in the actuation direction B under a force that exists when the clutch 15 is closed. In this case, second step areas S.2 and third step areas S.3 lie against each other on first step areas S.1 and prevent the ramps 2.1, 5.1 from slipping against one another. The rams 2.1, 5.1 are therefore locked against each other in a self-locking manner and can transmit the force in the actuation direction B. Together they take up a first height H.1. The fact that the contours 2.4, 5.4 are supported on one another over several surfaces with different gradients a.1, a.2, a.3 also results in an advantageous pressing between the contours 2.4, 5.4. If the clutch is 15, as in 5b shown, opened, the adjustment ramp 2.1 and the first counter ramp 5.1 are removed from each other. If a gap is reached so that the second step areas S.2 of the contour 2.4 of the adjustment ramp 2.1 and the counter contour 5.4 of the first counter ramp 5.1 can pass each other in the transverse direction Q, an adjustment takes place by moving the steps one grid further. The height of the gap is determined solely by the second step area S.2, i.e. its length and the second slope a.2. The second slope a.2 can be chosen to be comparatively steep, since the second step area S.2 only extends over a short part of the steps.

5c then shows the contours 2.4, 5.4 after an adjustment has been made and before the clutch 15 is completely closed again. 5d shows the subsequent state when the clutch 15 is closed again, with an axial force again being applied in the actuation direction B. Like between the 5c and 5 d can be seen, the contours 2.4, 2.5 are centered on each other through the second step areas S.2. After adjustment, the adjustment ramp 2.1 and the first counter ramp 5.1 together take up the second height H.2 and thus compensate for the resulting closure on the coupling 15.

Reference symbol list

1

Adjustment device

2

First ramp ring

2.1

adjustment ramp

2.2

drive ramp

2.3

recess

2.4

Contour adjustment ramp

2.5

Ramp element

2.6

Ramp element

3

Guide part/support disk

4

Lever element

5

second ramp ring

5.1

first counter ramp

5.3

Cones

5.4

Counter contour

5.5

recess

7

Sleeve element

7.1

second counter ramp

7.2

recess

7.4

Counter contour

8th

Intermediate element

8.1

Cones

9

Spring element

10

Rest facility

10.1

increase

10.2

recess

10.3

additional component

11

another spring element

12

Friction device

13

Support surface

15

coupling

15.1

first partial clutch

15.2

second partial clutch

A

Longitudinal axis

a.1

first slope

a.2

second slope

a.3

third slope

b

Direction of operation

H.1

first height

H.2

second height

S

Step length

p.1

first stage area

p.2

second stage area

p.3

third stage area

Q

Transverse direction

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102008051100 A1 [0002]

Claims (10)

Adjusting device (1) for a clutch (15) with an actuation direction (B), having a first ramp ring (2) arranged coaxially about a longitudinal axis (A) for disengaging the clutch (15), the first ramp ring (2) in a transverse direction (Q) has an adjustment ramp (2.1) and a drive ramp (2.2) for the actuation direction (B); a second ramp ring (5) movable coaxially about the longitudinal axis (A) and in the actuation direction (B) for actuation by a release bearing (16), comprising a first counter-ramp (5.1), the first counter-ramp (5.1) having a counter contour (5.4 ) is formed into a contour (2.4) of the adjustment ramp (2.1), the first counter ramp (5.1) being supported with its counter contour (5.4) on the contour (2.4) of the adjustment ramp (2.1); and a sleeve element (7) movable coaxially about the longitudinal axis (A) and in the transverse direction (Q) with a second counter-ramp (7.1), the second counter-ramp (7.1) having a counter contour (7.4) to a contour (2.4) on the Drive ramp (2.2) can be applied in the actuation direction (B), the drive ramp (2.2) and the second counter-ramp (7.1) being designed to slide against one another in the transverse direction (Q) when there is a contact force in the actuation direction (B); wherein the second ramp ring (5) is movably mounted at least indirectly on the sleeve element (7) in the actuation direction (B) and in the transverse direction (Q), the sleeve element (7) and the second ramp ring (5) being operatively connected in the transverse direction (Q). , and wherein the contour (2.4) of the adjustment ramp (2.1) and the counter contour (5.4) of the first counter ramp (5.1) are designed in the form of complementary steps; characterized in that at least the steps of the contour (2.4) of the adjustment ramp (2.1) or at least the steps of the counter contour (5.4) of the first counter ramp (5.1) have a first step area (S.1) and a second step area (S.2). , wherein the first step area (S.1) has a first gradient (a.1) and wherein the second step area (S.2) has a second gradient (a.2) which is opposite to a ramp gradient. Adjusting device (1). Claim 1 , wherein the steps of the contour (2.4) of the adjustment ramp (2.1) and the steps of the counter contour (5.4) of the first counter ramp (5.1) have a first step area (S.1) and a second step area (S.2), the first Step area (S.1) has a first slope (a.1) and the second step area (S:2) has a second slope (a.2) that is opposite to the ramp slope. Adjusting device (1). Claim 1 or 2 , whereby the first slope (a.1) is designed parallel to the ramp slope or with an angle of less than 5° relative to the ramp slope. Adjusting device (1) according to one of the preceding claims, wherein the second slope (a.2) forms an angle of at least 5°, preferably of at least 10°, to the transverse direction (Q). Adjusting device (1) according to one of the preceding claims, wherein the steps of the contour (2.4) of the adjusting ramp (2.1) and / or the steps of the counter contour (5.4) of the first counter ramp (5.1) each have a third step area (S.3), wherein the third step range (S.3) has a third slope (a.1). Adjusting device (1). Claim 5 , whereby the third slope (a.3) is designed parallel to the ramp slope or with an angle of less than 5° relative to the ramp slope. Adjusting device (1) according to one of the preceding claims, wherein the second step region (S.2) is shorter than the first step region (S.1). Adjusting device (1) according to one of the preceding claims, wherein the sleeve element (7) and the second ramp ring (5) are operatively connected in the transverse direction (Q) via a spring element (9). Adjusting device (1) according to one of the preceding claims, in which the adjusting ramp (2.1) and the drive ramp (2.2) have the same ramp gradient. Coupling (15) for selectively connecting or disconnecting an input shaft and at least one output shaft with an adjusting device (1) according to one of the preceding claims.

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