Clutch actuating device
By designing the axial stop and radial protrusion in the clutch actuator, the elastic travel path of the spring element is limited, and the high load problem during disengagement in the prior art is solved, and good acoustic effect and low Part loading improves the performance and cost-effectiveness of the device.
Patent Information
- Application Number
- CN202380033538.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-04-12
- Filing Date
- 2023-03-13
- Publication Date
- 2024-12-20
AI Technical Summary
The high load and large axial forces due to compliance during disconnection limit their performance, especially in terms of acoustic effects and component loads.
A bell-shaped actuator is designed with an axially elastic spring element, which limits the elastic travel path of the spring element by providing an axial stop and a radial protrusion, and utilizes the compliance of the spring element only during engagement. , during disconnection, force is transmitted through the inelastic path to reduce the load of the spring element.
Effective compliance force transmission under low axial forces during engagement is achieved, high loads of spring elements are avoided during disconnection, and the acoustic and cost-effectiveness of the device is improved.
Smart Images
Figure CN119173700A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a clutch actuating device for actuating a clutch to couple and disconnect an engine from a motor vehicle driveline. The clutch actuating device has a sliding sleeve / shift sleeve that can be axially displaced for engaging and disengaging the clutch, and a bell-shaped actuator that is preferably actuated by applying pressure from a piston to axially displace the sliding sleeve. Background Art
[0002] Such clutch actuating devices, in particular clutch units (DCU, disconnecting units) used as disconnecting clutches actuated by means of a sliding sleeve, are known from the prior art. There are clutch actuating devices in which the sliding sleeve is axially displaced by means of a (axially and / or radially) compliant bell-shaped actuator in order to provide good acoustic effects and low component loads when the clutch is actuated.
[0003] However, the prior art always has the following disadvantage: a defined high degree of compliance is necessary or advantageous, especially during engagement, but during disengagement, this defined high degree of compliance is disadvantageous due to the increase in the travel path of the bell-shaped actuator caused by the compliance and the high load on the spring element providing the compliance and the larger axial force required. Summary of the invention
[0004] The object of the present invention is therefore to avoid or at least mitigate the disadvantages of the prior art. In particular, a clutch actuation device is provided which has good properties with respect to acoustic effects and component loading, without having to accept disadvantages with respect to its functionality or loading of other components. In addition, the clutch actuation device should be particularly simple and cost-effective.
[0005] This object is achieved by a clutch actuating device having the features of claim 1. Advantageous developments form the subject matter of the dependent claims.
[0006] Therefore, according to the invention, this object is achieved in a device of the type described, wherein the bell-shaped actuator has a body and a spring element, which protrudes from the body and has an axially elastic configuration, and the bell-shaped actuator and the sliding sleeve are configured and adapted such that the transmission of axial forces to the sliding sleeve takes place via the spring element in a first axial direction, i.e. in the direction of tension or compression (axially elastically) and via the body in a second opposite axial direction, i.e. in the other of the directions of compression or tension (directly). This means that the axially elastic compliance of the spring element fails / is bridged in one axial direction, so that the transmission of axial forces takes place only on one side with a defined compliance.
[0007] This has the following advantages: Due to the one-sidedly acting / effective compliance, the axially elastic force transmission only takes place in the tensile direction or in the compressive direction when relatively low axial forces act, i.e. during engagement, and in the case of relatively high axial forces, i.e. during disengagement, the axially elastic force transmission is bridged / the force transmission takes place non-elastically in the other direction of the tensile or compressive direction / not via the spring element. Thus, a compliant force transmission can be achieved as required.
[0008] According to a preferred embodiment, the bell-shaped actuator can have an axial stop, which is formed on the body, by which the axial force can be transmitted to the sliding sleeve directly, i.e. not via the spring element, in the tensile direction or in the compressive direction. By providing an additional stop, the compliance of the spring element can be bypassed in a particularly simple manner. This means that the axial stop blocks / prevents an elastic displacement of the spring element in one direction.
[0009] According to another improvement of the preferred embodiment, the body can have a compression radial projection, which forms an axial stop and against which the sliding sleeve bears an axial end face (the axial end face facing the sliding sleeve) for transmitting an axial force in the compression direction. In addition, the spring element can have a tension radial projection, against which the sliding sleeve bears an axial end face (the axial end face facing away from the sliding sleeve) for transmitting an axial force in the tension direction. Since the sliding sleeve bears against the axial stop in the compression direction, the spring element does not have to first travel through its elastic travel path before the force is transmitted. At the same time, the benefit of the force transmission of the compliance in the tension direction can also be used to advantage. This arrangement is particularly advantageous when the compliance is advantageous under tension loads, i.e. preferably when the clutch actuation device actuates the engagement of the clutch in the tension direction.
[0010] According to an alternative improvement of the preferred embodiment, the body can have an elastic bridging protrusion, which forms an axial stop, and the spring element bears against the axial end face of the elastic bridging protrusion in the first axial direction or the second axial direction (directly). Since the spring element bears in the first axial direction or the second axial direction, the spring element cannot be axially elastically moved relative to the body in the corresponding axial direction, so the elasticity in the corresponding axial direction, i.e., in the axial direction on one side, fails. Because the spring element bears against the axial stop, the spring element does not have to travel through its elastic travel path before the force is transmitted. In addition, the spring element can have a tensile radial protrusion and a compression radial protrusion, the sliding sleeve bearing against the axial end face of the tensile radial protrusion for transmitting the axial force in the tensile direction, and the sliding sleeve bearing against the axial end face of the compression radial protrusion for transmitting the axial force in the compression direction. This is how the coupling with the sliding sleeve is achieved.
[0011] According to an alternative improvement of the preferred embodiment, the body can have a tension radial projection, which forms an axial stop and against which the sliding sleeve bears an axial end face (the axial end face facing away from the sliding sleeve) for transmitting an axial force in the tension direction. In addition, the spring element can have a compression radial projection, against which the sliding sleeve bears an axial end face (the axial end face facing the sliding sleeve) for transmitting an axial force in the compression direction. Since the sliding sleeve bears against the axial stop in the tension direction, the spring element does not have to first travel through its elastic travel path before the force is transmitted. At the same time, the transmission force of the compliance in the compression direction can also be used to advantage. This arrangement is particularly advantageous when the compliance is advantageous under compression load, i.e. preferably when the clutch actuation device actuates the engagement of the clutch in the compression direction.
[0012] According to a preferred embodiment, the spring element can be configured as a cantilever, which is spaced apart from the main body in the axial direction via a slot / cutout. The elasticity / rigidity in the axial direction can be adjusted specifically by the design of the slot and thus by the design of the cantilever, in particular by the length of the cantilever. The cantilever is thus separated from the main body (mostly but not completely) by the slot.
[0013] According to a preferred embodiment, the tension radial protrusion or the compression radial protrusion of the spring element can be arranged at the free end of the cantilever. In other words, the radial protrusion of the spring element that can axially elastically transmit the axial force to the sliding sleeve is preferably arranged at the free end of the cantilever, so that axial elastic compliance is achieved during force transmission according to the design.
[0014] According to a preferred embodiment, the bell-shaped actuator can have a connection portion which is configured as a snap closure for connection to the sliding sleeve, wherein the connection portion is arranged at the free end of the cantilever. Thus, by designing the spring element as a cantilever, a radially elastic design of the spring element can be achieved, so that the bell-shaped actuator can be particularly easily mounted on the sliding sleeve via the connection portion configured as a snap closure. The snap closure serves as a form-fitting connection between the two components, which can be released by elastic deformation or elastic displacement, so that the arrangement of the connection portion on the cantilever and therefore its radially elastic arrangement facilitates a form-fitting engagement between the sliding sleeve and the bell-shaped actuator in the axial direction.
[0015] According to a preferred embodiment, the sliding sleeve can have a radial projection, which is preferably configured as a circumferential flange, which is axially arranged between the tension radial projection and the compression radial projection of the bell-shaped actuator and / or is surrounded by the snap closure, preferably with axial play. The arrangement between the tension radial projection and the compression radial projection (one of the tension radial projection and the compression radial projection is formed on the axial stop for non-elastic force transmission and the other of the tension radial projection and the compression radial projection is formed on the spring element for elastic force transmission) ensures that the axial force can be transmitted to the radial projection of the sliding sleeve (axially positively transmitted to the radial projection of the sliding sleeve). Thus, the axial displacement of the bell-shaped actuator can be coupled with the axial displacement of the sliding sleeve.
[0016] According to a preferred embodiment, the bell-shaped actuator can be configured substantially as a hollow cylindrical member, wherein the spring element is formed by a circumferential portion of the hollow cylindrical member, which is axially connected to the body at one end thereof and is axially spaced from the body at the other end thereof via a through hole in the hollow cylindrical member extending partially in the circumferential direction. This means that the longitudinal direction of the spring element corresponds to the circumferential direction of the bell-shaped actuator. In other words, the spring element is formed on a substantially L-shaped portion of the hollow cylindrical member, so that the free end of the spring element at the “end of the longer leg” of the L-shape can be spring-loaded / displaced by a lever arm until the “connection point between the longer leg and the shorter leg” of the L-shape. This makes it particularly easy to manufacture the bell-shaped actuator with its spring element.
[0017] According to a preferred embodiment, the spring element can have an elongated hole extending in the longitudinal direction of the spring element. This allows the elasticity of the spring element to be adjusted specifically. Therefore, the elongated hole is preferably arranged parallel to the slot, ie extends in the circumferential direction of the bell-shaped actuator.
[0018] In other words, the present invention relates to a clutch actuating device (DCU, disconnecting unit). In the prior art, such clutch actuating devices have used compliant actuating elements in order to achieve good acoustic effects and lower component loads. In this case, a defined high degree of compliance is not required, in particular during the engagement process, rather than during the disengagement process. A high degree of compliance may even have an adverse effect during the disengagement process, because before applying the disengagement force, the actuating element must first cover a correspondingly large distance, and because the disengagement process requires greater forces than the engagement process, the compliant actuating element of the actuator, i.e. the spring element, is unnecessarily subjected to a heavier load during the disengagement process and must be dimensioned accordingly. Therefore, according to the present invention, it is proposed that the spring element acts only on one side. This means that the spring element is effective during the engagement process in which compliance is required and only relatively small axial forces act, and fails during the disengagement process in which the compliance of the spring element is not required. The one-sided failure of the compliance of the spring element can preferably be achieved by a stop. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The present invention will be described below with the aid of the accompanying drawings. In the accompanying drawings:
[0020] Figure 1 A perspective view showing a bell-shaped actuator of a clutch actuating device in a first embodiment, wherein only a 120° section of the bell-shaped actuator is shown for better illustration;
[0021] Figure 2 A perspective view showing a bell-shaped actuator of a clutch actuating device in a second embodiment, wherein only a 120° section of the bell-shaped actuator is shown for better illustration;
[0022] Figure 3 A perspective view showing a bell-shaped actuator of a clutch actuating device in a third embodiment, wherein only a 120° section of the bell-shaped actuator is shown for better illustration;
[0023] Figure 4 A perspective view showing a bell-shaped actuator of a clutch actuating device in a fourth embodiment, wherein only a 120° section of the bell-shaped actuator is shown for better illustration; and
[0024] Figure 5 A perspective view of a sliding sleeve of a clutch actuation device is shown. DETAILED DESCRIPTION
[0025] The accompanying drawings are merely schematic in nature and are only useful for understanding the invention. Identical elements are provided with identical reference numerals. Features of the various embodiments may be interchanged.
[0026] The figures show only certain parts of a clutch actuation device according to the invention.The clutch actuation device is used to actuate a clutch in order to couple and decouple an engine to and from a motor vehicle driveline.
[0027] The clutch actuating device has a sliding sleeve 1 (see Figure 5 ), which will be described in more detail below. The sliding sleeve 1 can be axially displaced for engaging and disengaging the clutch.
[0028] In addition, the clutch actuation device has a bell-shaped actuator 2 (see Figures 1 to 4 ). The bell-shaped actuator 2 is used to axially displace the sliding sleeve 1. Figures 1 to 4 Only one section of the bell-shaped actuator 2 is shown (here a 120° section), based on which the invention is explained.
[0029] The bell-shaped actuator 2 can preferably be actuated by applying pressure to a piston, i.e. can be axially displaced. In addition, the bell-shaped actuator 2 is coupled to the sliding sleeve 1 in the axial direction in order to transmit axial forces to the sliding sleeve during the axial displacement of the sliding sleeve 1. The bell-shaped actuator 2 has a spring element 3 of axially elastic configuration.
[0030] The bell-shaped actuator 2 is generally configured as a hollow cylindrical member. The bell-shaped actuator 2 has a main body 4 and a spring element 3 protruding from the main body 4. The spring element 3 is formed by a circumferential portion of the hollow cylindrical member, the spring element is axially connected to the main body 4 at one end thereof, and is axially spaced from the main body 4 at the other end thereof by a through hole 5 partially extending in the circumferential direction in the hollow cylindrical member. Therefore, the spring element 3 is configured as a cantilever 6 (which is fixedly connected to the main body 4 on one side), which is spaced from the main body 4 in the axial direction by a slot 7 formed by the through hole 5.
[0031] Furthermore, the spring element 3 can have an elongated hole extending in the longitudinal direction of the spring element 3. The elongated hole is preferably arranged parallel to the groove 7 or the through hole 5.
[0032] The bell-shaped actuator 2 and the sliding sleeve 1 are configured and adapted such that the axial force is transmitted to the sliding sleeve 1 via the spring element 3 in a first axial direction, i.e. in the tensile or compressive direction (axially elastically) and in an opposite second axial direction, i.e. in the compressive or tensile direction (directly) via the body 4. In other words, the axial force transmission to the sliding sleeve 1 takes place on one side with a defined degree of compliance (depending on the design of the spring element 3) and on one side without compliance.
[0033] Preferably, the bell-shaped actuator 2 may have an axial stopper 8 formed on the body and through which the axial force may be directly transmitted in the tensile direction or in the compressive direction to the sliding sleeve 1. The axial stopper 8 may be configured in various ways. Figures 1 to 3 Three different embodiments of a bell-shaped actuator 2 are shown, which differ only in the arrangement of the axial stop 8 and the resulting force transmission.
[0034] exist Figure 1 and Figure 2 In the embodiment, the main body 4 has a compression radial protrusion 9 forming an axial stop 8, and the sliding sleeve 1 bears against an axial end face 10 of the compression radial protrusion for transmitting axial forces in the compression direction. The axial end face 10 is arranged facing the sliding sleeve 1. In addition, the spring element 3 has a tension radial protrusion 11, and the sliding sleeve 1 bears against an axial end face 12 of the tension radial protrusion for transmitting axial forces in the tension direction. The axial end face 12 is arranged away from the sliding sleeve 1. The tension radial protrusion 11 of the spring element 3 is arranged at the free end of the cantilever 6 / spring element 3. In addition, the spring element 3 may optionally have a second compression radial protrusion 13, and the sliding sleeve 1 also bears against an axial end face 14 of the second compression radial protrusion in the compression direction. The second compression radial protrusion 13 of the spring element 3 is arranged at the free end of the cantilever 6 / spring element 3. In Figure 1 In the embodiment, the compression radial protrusion 9 (fixed to the body) and the second compression radial protrusion 13 (fixed to the spring element) are arranged at the same height in the axial direction. Figure 2 In the embodiment, the compression radial protrusion 9 (fixed to the body) and the second compression radial protrusion 13 (fixed to the spring element) are arranged at the same height in the circumferential direction.
[0035] Therefore, in the compression direction, the sliding sleeve 1 bears against both the compression radial projection 9, i.e. the axial stop 8, and the second compression radial projection 13, i.e. the spring element 3, and due to the compliance of the spring element 3, force is transmitted (only) via the compression radial projection 9, i.e. axially non-elastically. The spring effect of the spring element 3 is therefore only a tensile effect (here upwards).
[0036] According to an alternative development of the preferred embodiment, the body can have an elastic bridging projection which forms an axial stop and against whose axial end face the spring element bears (directly) in the first axial direction or in the second axial direction.
[0037] exist Figure 3In the embodiment of the present invention, the body 4 has an elastic bridging projection 15 forming an axial stop 8, against which the spring element 3 bears (directly) in the first axial direction or in the second axial direction, here in the compression direction. This means that the axial stop 8 fills the groove 5 and prevents the spring element 3 from being elastically displaced in the compression direction, so that the force transmission in the compression direction takes place via the body 4, i.e. not axially elastically. The axial end face 16 is arranged facing the spring element 3. The elastic bridging projection 15 can be arranged at the free end of the cantilever 6 / spring element 3. In addition, the spring element 3 has a tensile radial projection 17, against which the sliding sleeve 1 bears in order to transmit axial forces in the tensile direction. The axial end face 18 is arranged facing away from the sliding sleeve 1. The tensile radial projection 17 of the spring element 3 is arranged at the free end of the cantilever 6 / spring element 3. Furthermore, the spring element 3 has a compression radial projection 19 against whose axial end face 20 the sliding sleeve 1 bears in the compression direction. The compression radial projection 19 of the spring element 3 is arranged at the free end of the cantilever 6 / spring element 3 .
[0038] Thus, in the compression direction, the sliding sleeve 1 bears against the compression radial projection 19, and the spring element in turn bears against the elastic bridging projection 15, i.e. the axial stop 8, in the compression direction, so that the force transmission takes place in an axially non-elastic manner due to the bridged / deactivated compliance in the compression direction of the spring element 3. The spring effect of the spring element 3 is therefore only a tensile effect (here upwards).
[0039] exist Figure 4 In the embodiment of the invention, the main body 4 has a tensile radial projection 21 forming an axial stop 8, against which the sliding sleeve 1 bears against an axial end face 22 for transmitting axial forces in the tensile direction. The axial end face 22 is arranged facing away from the sliding sleeve 1. In addition, the spring element 3 has a compression radial projection 23, against which the sliding sleeve 1 bears against an axial end face 24 for transmitting axial forces in the compression direction. The axial end face 18 is arranged facing away from the sliding sleeve 1. The compression radial projection 23 of the spring element 3 is arranged at the free end of the cantilever 6 / spring element 3. In addition, the spring element 3 may optionally have a second tensile radial projection 25, against which the sliding sleeve 1 also bears in the tensile direction against an axial end face 26. The second tensile radial projection 25 of the spring element 3 is arranged at the free end of the cantilever 6 / spring element 3. The tensile radial projection 21 (fixed to the main body) and the second tensile radial projection 25 (fixed to the spring element) are arranged at the same height in the axial direction.
[0040] Therefore, in the tension direction, the sliding sleeve 1 bears against both the tension radial protrusion 21, i.e. the axial stop 8, and the second tension radial protrusion 25, i.e. the spring element 3, and due to the compliance of the spring element 3, force is transmitted (only) via the tension radial protrusion 21, i.e. axially non-elastically. Therefore, the spring effect of the spring element 3 is only a compression effect (here downward).
[0041] Furthermore, the bell-shaped actuator 2 has a connection portion 27 which is configured as a snap closure for connection to the sliding sleeve 1. The connection portion 27 is arranged at the free end of the cantilever 6. Figure 1 In the embodiment shown, the connecting portion 27 is formed by the tension radial protrusion 11 of the spring element 3 (and the second compression radial protrusion 13 of the spring element 3). The tension radial protrusion 11 of the spring element 3 is configured as a snap hook. Figure 2 In the embodiment shown, the connecting portion 27 is formed by the tension radial protrusion 17 of the spring element 3 (and the second compression radial protrusion 19 of the spring element 3). The tension radial protrusion 17 of the spring element 3 is configured as a snap-on hook. Figure 3 In the embodiment shown, the connecting portion 27 is formed by the second tensile radial protrusion 25 of the spring element 3 (and the compressive radial protrusion 23 of the spring element 3). The second tensile radial protrusion 25 of the spring element 3 is configured as a snap hook.
[0042] Due to the design of the spring element 3 as a cantilever 6 , the spring element is designed to be radially elastic, in particular elastically displaceable radially outwards. Thus, the snap hook can engage with the sliding sleeve 1 in an axially positive manner.
[0043] Figure 5 The sliding sleeve 1 is shown. The sliding sleeve 1 is substantially configured as a hollow cylindrical piece. The sliding sleeve 1 has a radial projection 28. The radial projection 28 is configured as a circumferentially outwardly protruding flange. The radial projection 28 is arranged axially between the (force transmitting) tension radial projections 11, 17, 21 and the (force transmitting) compression radial projections 9, 19, 23 of the bell-shaped actuator 2. In addition, the radial projection 28 is surrounded by a snap-on closure / connection portion 27.
[0044] The sliding sleeve 1 has on its inner diameter a tooth system in the form of axial grooves, via which a torque can be transmitted between the clutch parts of the clutch.
[0045] Reference numerals list
[0046] 1 Sliding sleeve
[0047] 2 Bell Actuator
[0048] 3 Subject
[0049] 4 Spring element
[0050] 5 Through holes
[0051] 6 Cantilever
[0052] 7 slots
[0053] 8 Axial stop
[0054] 9 Compression radial protrusion
[0055] 10 Compression of the axial end surface of the radial protrusion
[0056] 11 Stretching radial protrusion
[0057] 12 Stretching the axial end face of the radial protrusion
[0058] 13 Second compression radial protrusion
[0059] 14 Axial end surface of the second compression radial protrusion
[0060] 15 Compression radial protrusion
[0061] 16 Compression of the axial end surface of the radial protrusion
[0062] 17 Stretching radial protrusion
[0063] 18 Stretching the axial end face of the radial protrusion
[0064] 19 Second compression radial protrusion
[0065] 20 Axial end surface of the second compression radial protrusion
[0066] 21 Stretching radial protrusion
[0067] 22 Stretching the axial end face of the radial protrusion
[0068] 23 Compression radial protrusion
[0069] 24 Axial end surface of the second compression radial protrusion
[0070] 25 Second stretch radial protrusion
[0071] 26 Axial end surface of the second stretched radial protrusion
[0072] 27 Connection part
[0073] 28 Radial protrusion
Claims
1. A clutch actuating device for actuating a clutch for coupling and disconnecting an engine from a motor vehicle driveline, the clutch actuating device comprising a sliding sleeve (1) and a bell-shaped actuator (2), the sliding sleeve being axially displaceable for engaging and disconnecting the clutch, and the bell-shaped actuator being used for axially displacing the sliding sleeve (1), characterized in that: The bell-shaped actuator (2) has a main body (4) and an elastic spring element (3), which has an axially elastic configuration and protrudes from the main body (4), and the bell-shaped actuator (2) and the sliding sleeve (1) are configured and adapted to enable the transmission of axial force to the sliding sleeve (1) to be carried out via the spring element (3) in a first axial direction and via the main body (4) in an opposite second axial direction.
2. The clutch actuating device according to claim 1, characterized in that: The bell-shaped actuator (2) has an axial stop portion (8) which is formed on the main body (4) and through which the axial force can be directly transmitted to the sliding sleeve (1) in a tensile direction or in a compressive direction.
3. The clutch actuating device according to claim 2, characterized in that: The main body (4) has a compression radial protrusion (9), which forms the axial stop (8), and the sliding sleeve (1) is supported against the axial end face (10) of the compression radial protrusion for transmitting the axial force in the compression direction, while the spring element (3) has a tension radial protrusion (11), and the sliding sleeve (1) is supported against the axial end face (12) of the tension radial protrusion for transmitting the axial force in the tension direction.
4. The clutch actuating device according to claim 2, characterized in that: The main body (4) has an elastic bridging protrusion (15), which forms the axial stop portion (8), and the spring element (3) is supported against the axial end face (16) of the elastic bridging protrusion along the first axial direction or along the second axial direction, and the spring element (3) has a tensile radial protrusion (17) and a compression radial protrusion (19), the sliding sleeve (1) is supported against the axial end face (18) of the tensile radial protrusion for transmitting the axial force along the tensile direction, and the sliding sleeve (1) is supported against the axial end face (20) of the compression radial protrusion for transmitting the axial force along the compression direction.
5. The clutch actuating device according to claim 2, characterized in that: The main body (4) has a tensile radial protrusion (21), which forms the axial stop (8), and the sliding sleeve (1) is supported against the axial end face (22) of the tensile radial protrusion for transmitting the axial force in the tensile direction, while the spring element (3) has a compression radial protrusion (23), and the sliding sleeve (1) is supported against the axial end face (24) of the compression radial protrusion for transmitting the axial force in the compression direction.
6. The clutch actuation device according to one of claims 1 to 5, characterized in that The spring element (3) is configured as a cantilever (6) which is spaced apart from the main body (4) in the axial direction via a slot (7).
7. The clutch actuating device according to claim 6, characterized in that: The tension radial protrusion (11, 17) or the compression radial protrusion (23) of the spring element (3) is arranged at the free end of the cantilever (6).
8. The clutch actuating device according to claim 6 or 7, characterized in that: The bell-shaped actuator (2) has a connecting portion (27) configured as a snap closure for connecting to the sliding sleeve (1), wherein the connecting portion (27) is arranged at the free end of the cantilever (6).
9. The clutch actuating device according to claim 8, characterized in that: The sliding sleeve (1) has a radial protrusion (28) which is arranged axially between the tension radial protrusion (11, 17, 21) and the compression radial protrusion (9, 15, 23) of the bell-shaped actuator (2) and / or is surrounded by the connecting portion (27).
10. The clutch actuation device according to one of claims 1 to 9, characterized in that The bell-shaped actuator (2) is generally constructed as a hollow cylindrical member, wherein the spring element (3) is formed by a circumferential portion of the hollow cylindrical member, the circumferential portion is axially connected to the main body (4) at one end of the circumferential portion, and the circumferential portion is axially spaced from the main body (4) at the other end of the circumferential portion via a through hole (5) in the hollow cylindrical member that partially extends in the circumferential direction.