FR2841949A1 - CLUTCH SYSTEM FOR ACTUATING A CLUTCH AND METHODS OF MOUNTING A CLUTCH SYSTEM - Google Patents

Abstract

Clutch systems are provided for a clutch of a vehicle and methods of mounting and disassembling the clutch system. It is particularly advantageous for the clutch release systems in accordance with the invention to be integrated in the simplest possible way in the clutch housing.

Description

The present invention relates to a declutching system for a clutch

  of an automatic gearbox of a vehicle, comprising at least one clutch actuator, connected to a clutch release bearing by means of a transmission member. The invention also relates to methods of mounting a declutching system on a clutch. A declutching system known in the automotive technique can for example be provided with a mechanical transmission system between a clutch actuator and a clutch release bearing. The transmission has a transmission member for actuating the clutch. The clutch system components are attached to both the clutch and the clutch housing. Consequently, the assembly or disassembly of the known declutching system is laborious. In addition, the joining points must be able to be fitted in the transmission systems so that the clearance is as small as possible, so as not to negatively influence the association between the declutching stroke and the point of stroke measurement in the actuator

the clutch actuator.

  The object of the present invention is to provide declutching systems for a clutch as well as methods for mounting a declutching system, which can be improved later, and which are suitable for being integrated into the clutch housing and transmit movement to the clutch

  actuation with as little backlash as possible.

  The object of the invention is achieved by a declutching system for a clutch of an automatic gearbox of a vehicle, comprising at least one clutch actuator, connected to a clutch declutching stop through a transmission member, where there is provided as a transmission member at least one module that can be previously mounted. The pre-assembly allows the declutching system according to the invention to be integrated

  optimally in the clutch housing.

  The module may preferably have an actuating lever or a tilting lever previously mounted on a lever support and making it possible to transmit the actuating movement. The lever support can include

  a base provided with a support location for the actuating lever.

  Other construction configurations are however also conceivable.

  The proposed module allows the prior assembly of the joining point in the declutching system according to the invention and it is thus possible to obtain a

  support slots configuration such that the game is zero.

  In the context of a development of the invention, provision may be made for the rocking lever or the like provided as an actuating lever to have an elongated base, positioned in an orientable manner approximately in the middle of the lever support. The base has a first free end and a second free end. Preferably, the clutch release bearing can be connected to the first end

  and the clutch actuator can be connected to the second end.

  According to another configuration of the invention, the first end of the rocking lever can mesh with a recess or the like subjected to the action of a spring of a guide element, said recess being connected to the release bearing . To connect the transmission member and the clutch actuator, the second end of the rocking lever can for example mesh in a recess subjected to the action of a spring of a drive part of the actuator. clutch. It is also possible to use

  other suitable connection possibilities.

  It is particularly advantageous that there is provided, in the declutching system according to the invention, at least one connection with a common screw pitch making it possible to fix the clutch actuator and the base of the actuating lever

to the clutch bell.

  The object of the invention is also achieved by a method of mounting, on a clutch, a declutching system, in particular the declutching system proposed here, according to which a previously mounted transmission member is placed in the bell. clutch clutch as a module, a first end of the transmission member configured as an actuating lever being connected to a clutch release bearing and the clutch actuator then being placed in the clutch housing and connected to a second end of the actuation lever. The module is preferably mounted in the clutch housing from the side, by a part of the clutch release bearing. The clutch actuator

can then be installed.

  According to a development of the invention, the clutch actuator and a base of the actuating lever can be fixed using at least one connection with a common screw thread or the like. Thus, the final fixing can be carried out in a very simple way using a joint thread connection associating the clutch actuator, the base and the clutch bell. Disassembly can preferably be carried out by reversing the order of assembly operations. In another configuration, the clutch can be mounted on the motor shaft, where the clutch release bearing is fixed to the Belleville washer tabs. The clutch release bearing can for example be aligned on the guide element. A guide sleeve can for example be used as a guide element, said guide sleeve being for example connected

  automatically at the clutch release bearing.

  The arrangement of the clutch actuation device or of the proposed declutching system, as well as the mounting method, have a series of advantages compared to known declutching systems and to methods of mounting declutching systems. known. For example, in the declutching system according to the invention, a transmission can take place in both directions, i.e. that it is possible to carry out a pulled and pushed actuation of the clutch. In particular, the joining points of the actuating lever can also be configured with a small clearance with pre-tensioned spring elements. As a variant, it is also possible to reduce the pretensioning forces, which can cause, when changing the direction of the forces, a continuous alternation between the sides of the installation points. The location for supporting the actuating lever can be of a size provided on the base by means of less effort. Meticulous machining of the clutch housing, such as drilling, milling, mounting bearing rings or the like

  prove to be advantageous for the process proposed in accordance with the invention.

  It is particularly advantageous that the actuation system can be previously mounted and checked in the clutch housing. Similarly, the clutch can be previously mounted and checked with the clutch release bearing. This means that all the joining points can be tested before the final assembly, that is to say before the start of the assembly, in accordance with the proposed method. The connection point between the transmission system and the clutch release bearing is closed automatically during assembly. During disassembly, this closure can be opened again very simply, by disassembly of the actuation lever. The declutching system according to the invention can preferably be mounted in manual or automated clutches, in particular in a mechanism with electronic clutch management, automated gear change, uninterrupted gear change, gear change

  parallel or similar mechanisms.

  The object of the invention is also achieved by a declutching system, in which there is provided at least one flexible closure element provided with at least one locking element or the like for fixing a configured actuation lever.

  as a transmission member to the clutch release bearing.

  For the declutching system, a mechanical transmission system may preferably be provided between the actuator and the declutching stop. The clutch force diagram then highlights particular requirements, as has already been described for the configurations mentioned above. According to the invention, there is essentially provided a cover for the transmission system of the clutch actuation device or the clutch release bearing. Unlike the solutions known so far, the configuration according to the invention is characterized in particular in that the flexible closure element is completed by a blocking element. Thus, the force flow of the declutching system can be closed in both actuation directions. In this way, a clutch system is also produced in

  which the play is particularly weak.

  As part of a development of the present invention, it can be provided that the actuating lever provided as a transmission member is connected to the clutch release bearing by means of a guide device. Preferably, both a free end of the actuating lever and the release bearing, as well as the closure element and the locking element, can be fixed to the guide device. According to another configuration, the blocking element can be positioned so that the closure element is in an open position before mounting and in a closed position after mounting. It is particularly advantageous, in the declutching system according to the invention, that thanks to the blocking element, a complete closure can be observed, due to the modified position of the parts with respect to each other. As long as the cover or the closure element is fully or only partially opened, the shape of the spring element differs. Thus, if the closed position is incomplete, the mobility of the clutch actuation device can be reduced advantageously, thanks to the blocking form. According to another development, there can be provided, in the declutching system according to the invention, at least one disassembly point for disassembly. The spring element can also be placed so that a pretension occurs between the elements of the transmission system, in order to avoid any play, in particular when the direction of the forces changes. For this, it is for example possible to use or provide a point of elasticity

  additional spring element.

  It can also be provided, within the framework of a development of the invention, that preferably by virtue of the integration of the spring element or of the flexible closure element in a radial compensation of the stop of

  declutching, we act positively on a pre-tension to be established.

  Variations in the forms of movement of the locking element or the closure element are also possible. In addition to the use of obturation elements which mesh radially, it is also possible to use the principle of a blocking element in other forms. A rotational movement can for example be provided for the opening and closing of the closure element. In this configuration, the cover or obturation element is

  also held in an open position by the locking element.

  Thus, the object of the invention can be achieved by another method of mounting a declutching system for a clutch according to the invention, according to which the locking element is positioned, before mounting, by a spring, so that the closure element is kept in an open position before mounting and in a closed position after mounting. In this way, during assembly, the actuation of the locking element and the drive mechanism of the closure element can be released, so that the connection is formed automatically. Installation success can be checked

  at the corresponding point of the blocking element.

  The solutions according to the invention can preferably be applied in all kinds of clutch actuation devices, in particular during the intervention of pulled and pushed actuation forces,

  regardless of the type of engine used for the clutch actuator.

  According to the process according to the invention, the blocking element can be

  held before mounting by a spring element or the like.

  The closure element can for example be blocked by the blocking element in an open position. Preferably, the clutch release bearing can be applied against the locking element during assembly, so that

  the shutter element is blocked.

  During mounting, the locking element can be moved by the clutch release bearing due to the mounting force acting against the spring pretension of the spring element. Thus, the closure element can be released by the blocking element. After mounting, the locking element can preferably be brought into an open position, the closure element being brought into a closed position due to its own pre-tensioning and mounting.

thus being finished.

  According to the method according to the invention, provision may be made to remove the closure element for disassembly. According to a configuration of the invention, the closure element can for example be removed from the side. It is also possible that the shutter element is rotated, in order to be brought into

an open position.

  According to another development of the invention, it can be provided that the actuating lever is withdrawn from the side, in order to be able to radially open the closure element. According to a variant configuration, it can also be provided that the actuation lever is rotated, in order to radially open the element

  shuttering by ramps or similar installations.

  The object of the invention, according to the objective defined above, can also be achieved by a declutching system for a clutch of an automatic gearbox of a vehicle, comprising at least one clutch actuator, connected to the Belleville washer tabs to allow actuation of the clutch, wherein the Belleville washer tabs are placed in a hooking structure for the Belleville washer tabs of the clutch release bearing, to allow for push and pull actuation of the clutch clutch, said clutch release bearing being connected to the clutch actuator by means of a self-sealing connection. In this way, a self-centering declutching system is produced, in particular for pulled and pushed actuation.

vehicle clutches.

  It is therefore particularly advantageous for the declutching system according to the invention to have no play and to lock automatically, preferably after mounting the gearbox and the engine, when the internal combustion engine is started, and can also be dismantled again. To reduce the clutch actuation forces of the vehicle as well as the associated actuation energy for automated clutch actuation systems, it is necessary to use clutches which can be not only pushed but also learned. This is why a declutching system is proposed which has a connection to the declutching device of

  clutch and Belleville washer tabs on the clutch.

  In this way, it is possible for example to propose, for automated clutch systems, a clutch with push and pull actuation, o the electrical power absorbed from the electromechanical actuator, in particular

  1 5 of an electric central release device, is reduced.

  In the context of an advantageous configuration, there is provided at least one closure element making it possible to connect the clutch release bearing and the clutch actuator. Preferably a bayonet closure or the like

  may be provided as a sealing element.

  The first rotation movement of the internal combustion engine, after mounting the vehicle engine and the vehicle gearbox, is used to rotate a bayonet closure or the like. To this end, in accordance with a development of the invention, the rotary bearing ring of the clutch release bearing can firstly be connected to a first part of the bayonet closure, preferably by means of at least a breaking point or the like. A second part of the bayonet closure can be connected to the fixed bearing ring integral with the casing, o, when the two parts of the bayonet closure are connected to each other, the connection between the first part of the bayonet closure and the rotating bearing ring is undone by

breaking the breaking point.

  Thus, in the proposed declutching system,

  advantageous a connection for a pulled and pushed actuation of the clutch.

  Thanks to a correct design of the bayonet closure, the connection can be

  achieved with zero clearance and automatic centering.

  According to a development, it can be provided that, preferably, the fixed rolling ring of the release bearing has, as part of the bayonet closure, several flaps oriented radially inward or the like, o movements of the fixed bearing ring are made for automatic centering, in a radial direction. In this solution, the flaps located at the level of the non-rotating bearing ring of the release bearing can be flattened or actuated to be placed against the bayonet closure, in order to avoid any axial play. The bearing ring can however be moved in the radial direction, in order to allow the automatic centering function intended to compensate for an axis offset between the crankshaft and the clutch release bearing. At this point, we can do without the small Belleville washer used in the current clutch release bearings, because the radial holding force is applied by the connection between the clutch release bearing and the Belleville washer tabs. The bayonet closure can also be

made in a single piece.

  According to another configuration of the invention, a grooved ball bearing can for example be provided as a declutching stop, said grooved ball bearing preferably being fixed to the washer tabs

  Belleville when mounting the clutch pressure plate.

  Preferably, the attachment structure of the Belleville washer tongues may have an additional smaller Belleville washer for tightening the Belleville washer tongues, the Belleville washer being placed so that the clamping force is greater than the actuating force. of the clutch expected, even when the clutch Belleville washer tabs are in the closed position. In this way, a flexible connection is made

  between the clutch release bearing and the Belleville washer tabs.

  The advantages of the declutching system according to the invention lie in the fact that the play is zero and that any loss in the declutching stroke is prevented. In addition, there is no jump in the characteristic curve of

clutch moments.

  The object is also achieved by a method of mounting the clutch system, in which the clutch release bearing is connected to the clutch actuator (108) with zero play and automatic centering by means of a

self-sealing connection.

  According to the method according to the invention, a bayonet closure can preferably be used as a self-sealing connector. A rotary bearing ring of the clutch release bearing can firstly be connected to a first part of the bayonet closure and a fixed bearing ring of the clutch release bearing can be connected to a second part of the bayonet closure, the bayonet closure being completely inserted thanks to the rotation of the motor. The connection between the first part of the bayonet closure and the rotating bearing ring can preferably be undone at

level of a breaking point.

  To avoid any axial play in the declutching system according to the invention, it can be provided, according to the method according to the invention, that the second part of the bayonet closure is fixed to the fixed bearing ring of the stop release by planarizing or actuating a few

  Radial flaps facing inwards.

  A grooved ball bearing is preferably used as a clutch release bearing, said grooved ball bearing being fixed to the Belleville washer tabs when mounting the clutch pressure plate, the Belleville washer tabs being tightened by a washer Additional Belleville, so that the attached Belleville washer tabs are subjected to the action

of a spring.

  For disassembly, it can be provided, as part of the process according to the invention, that the baőnnette closure is rotated, to be undone, in the

  direction opposite to the direction of rotation of the motor.

  The possibilities of applying the proposed solutions are particularly advantageous in combination with a central electric declutching device (DCE) making it possible to reduce the actuation forces of the clutch and the electrical consumption or the load of the on-board circuit. Thus, the engine torques can be higher with an electromechanical clutch release system, or the clutch actuation system can be provided

for weaker forces.

  Other advantages and advantageous configurations are presented in the

  subclaims and diagrams described in the following.

  They represent: Figure 1 an overall view of a first embodiment of a declutching system according to the invention for actuating a clutch; Figure 2a to e the assembly order of the declutching system, according to Figure 1, by means of an assembly method according to the invention; Figure 3a to d the disassembly order of the declutching system, according to Figure 1, using the method according to the invention; Figure 4a to d the mounting order corresponding to a second embodiment of the declutching system, in accordance with another mounting method according to the invention; Figure 5a to d the disassembly order of the declutching system, according to the method according to the invention; Figure 6 to 8 different sectional views of configurations of the second embodiment of the declutching system; Figure 9a and b different forms of blocking for the closure element, for the second embodiment of the invention; Figure 1 Oa and b different possibilities of arrangement of a disassembly point, for the second embodiment of the declutching system; Figure 1 ia and b two possibilities of arrangement of the second embodiment of the declutching system, for a parallel gear change mechanism; Figure 12 a and b a variant of the locking configuration, for the second embodiment of the declutching system; Figure 13 a sectional view of a third embodiment of the clutch system; Figure 14 an enlarged partial view, according to Figure 13; Figure 15a a bird's eye view of an additional Belleville washer, in accordance with Figures 13 and 14; Figure 15b a sectional view along the line of section 1-1, in accordance with Figure i 5a; Figure 16 a representation of the characteristic curve of the Belleville washer, in accordance with Figures i5a and i5b; Figure i7a a view from above on a rotating bearing ring with flaps, according to Figures 13 and 14 Figure 17b a sectional view along the line of section II-II, according to Figure i7a; Figure i8a a bird's eye view of the part of the bayonet closure attached to the clutch release bearing; Figure i8b a sectional view along the line of section 111-111, in accordance with Figure i8a; Figure l9a and b a lock closure and a connection to the fixed bearing ring, with automatic centering function; and Figure 19c is a sectional view along the line of section IV-IV, in accordance with Figures 19a and 19b; Figure 1 shows a view of a first embodiment of a declutching system for actuating the clutch according to the invention, once the assembly has been carried out. In the declutching system according to the invention, a previously mounted module is provided as a transmission member, said module comprising an actuating lever 104 previously mounted on a lever support 122, o the lever support 122 has a base 105 provided with a support location for the actuation lever 104. The actuation lever 104 has an elongated base, positioned in an orientable manner approximately in the middle of the lever support 122,

  o the base includes a first free end and a second free end.

  The first end of the rocking lever or of the actuation lever 104 is placed in a recess or in a slot 106 subjected to the action of a spring of a guide element, connected to the release bearing. The second end of the actuating lever 104 is placed in a recess subjected to the action of a

  spring of a drive part 125 of the clutch actuator 108.

  The assembly sequence, illustrated in FIGS. 2a to 2e, can be carried out as follows: A guide tube 101 is fixed in the clutch housing 102 receiving the clutch 109 by means of a thread connection 114 and is associated with a guide sleeve 103. The previously mounted module is mounted with the actuation lever 104 and the base 105. A free end of the actuation lever 104 engages in the slot 106 of the guide sleeve 103 with

  a pretensioned spring element. The clutch actuator 108 is then added.

  The drive part 125 of the clutch actuator 108 is also in contact with the actuation lever 104 at the other free end, by means of a pretensioned spring element. Connections with common screw pitch 112 make it possible to fix the clutch actuator 108 and the base 105 of the actuating lever 104 to the clutch housing 102 or to the gearbox housing 113. The clutch 109 is mounted on the motor shaft. The clutch release bearing 110 is fixed to the Belleville washer tabs 127 of the clutch 109. When the gearbox is mounted on the engine block 111 with the clutch 109, the clutch release bearing 110 can thus align with the sleeve. guide 103. A rocker lock automatically connects the clutch release bearing 110

  and the guide sleeve 103 of the transmission system.

  In FIGS. 3a to 3d, the disassembly of the declutching system is illustrated by way of example, the same components being designated by the same numbers of

  reference as in the figures already described.

  Known devices, as we know them for example for pulled clutches, are characterized in that during mounting, a spring element must be brought from a closed position to an open position by the mounting force, in order to then resume a closed position again when all

the parts have been assembled.

  A second embodiment of the invention on the other hand relates to a declutching system comprising a flexible closure element 115, which has a locking element 116, as indicated by way of example in the

Figures 4a to 4d.

  Another method of mounting the declutching system is also proposed, according to which the locking element 116 is positioned before mounting by a spring, so that the closure element 115 is held in a

  open position before mounting and in a closed position after mounting.

  For the realization of the mounting fitting, one can proceed as follows: In FIG. 4a, the locking element 116 is held before mounting by a spring. The shutter element 115 is blocked by the blocking element

116 in an open position.

  During assembly, in FIG. 4b, the declutching stop 110 is applied against the blocking element 116 and the closure element 115 is blocked by the blocking element 116. Even during assembly, in accordance with the figure 4c, the clutch release bearing 110 moves the locking element 116 by the mounting force applying against the pre-tension of the spring. The element

  shutter 115 is actuated and released by the locking element 116.

  After assembly, in accordance with FIG. 4d, the locking element 116 is in an open position. The shutter member 115 moves to the closed position due to its own pre-tension, so that the connection

assembly is carried out.

  The disassembly or dissolution of the connection point of the declutching system is illustrated schematically in Figures 5a to 5d. The force flow from the clutch actuator is closed in both directions. For disassembly, it is necessary to introduce a disassembly point. One possibility is to separate the flywheel from a clutch housing, like a flexible plate. The clutch 109 thus remains first of all in the clutch housing 102. The gearbox can be separated, with the clutch 109, from the engine block 111. Then, the clutch 109 can be removed from the

clutch bell 102.

  Alternatively, provision may be made for the connection points used during assembly to be released. For this purpose, the following possibilities are preferably used: In accordance with FIG. 5a, the spring element can be removed automatically. It is also possible that an opening movement of the spring element is carried out (FIG. 5b), such as for example a rotation on ramp bodies, in order to obtain an open position. It is also conceivable, in accordance with FIG. 5c, that a movement of an aid element is provided, for example a lateral withdrawal of the actuation lever 104. It is also possible that the movement of the element actuation 104 is achieved with an overtravel, for example in a parallel gear change mechanism with a spring clutch; the two actuation levers 104

  can then be moved in the direction of drawn clutches (Figure 5d).

  The spring element can also be mounted in such a way that there is pre-tension between the elements of the transmission system, making it possible to prevent play, in particular when the direction of the forces changes. According to FIG. 6, it is possible that an additional elastic point is provided at the level of the spring element or of the element.

shutter 115.

  Likewise, a positive effect can be achieved by integrating the shutter element 115 into a radial compensation 123 of the clutch release bearing.

  11 0. Possible embodiments are presented in FIGS. 7 and 8.

  It appears that in known mounting principles, it is not possible to carry out checks, because the shutter element 115 only closes

  partially, so that negative effects can be expected.

  This is why the configuration according to the invention, with the locking element 116, has a fundamental advantage. The complete closure can be observed by the modified positioning of the components. As long as the shutter member 115 is open or only partially open, the shape of the shutter member 115 differs. Thus, the mobility of the clutch actuation device, in the event of incomplete closure of the closure element 115,

  can be limited or avoided, thanks to a form of blocking.

  In Figures 9a and 9b are shown two forms of blocking

  possible to improve mounting security.

  In FIG. 9a, a locking device 124 is provided on the clutch as a stopper cover. Thus, a stopper is provided for actuating the shutter member 115, in order to avoid a sudden return of the clutch 109 when the shutter member 115 is opened. According to the figure 9b, another locking device 124 is produced at the disengagement device, in order also to avoid a sudden return of the clutch 109 during opening

the shutter member 115.

  In addition to the possibility of providing a closure for a mechanical declutching system with actuating lever 104, other mounting variants exist, such as those indicated in FIGS. 10a and 10b and in the

figures llaet llb.

  For example, an application may be provided for a disassembly point located between a central electric declutching device (DCE) and a mechanical central declutching device (DCM) or the like and the declutching stop 110,

  in accordance with Figures 1 Oa and b.

  In addition, an application can be conceived between the declutching device and the clutch bell 102. The disassembly point can also, under certain conditions, be used for a double declutching device in a parallel gear change mechanism, such as this is shown by way of example in FIGS. 1 a and 1 lb. Other forms of movement of the closure element 115 are also possible. In addition to the use of closure elements 115 which mesh radially, it is also possible to use the principle of the blocking element 116 in other forms. Figures 12a and 12b show use with a rotary shutter 115. In this case, the shutter member 115

  is also held in an open position by the locking element 116.

  During assembly, the locking element 116 is actuated and the drive mechanism of the closure element 115 is released, so that the connection is made automatically. The success of the assembly can be checked as appropriate at a specific point, for example at the angle of

the shutter element 115.

  In addition, in accordance with the invention, a third embodiment of the declutching system and another mounting method are proposed. The self-centering declutching system, allowing pulled and pushed actuation of vehicle clutches 109, is shown schematically in the

  FIG. 13, a detail Y being represented in an enlarged manner in FIG. 14.

  The declutching system shown has, as a connection between the declutching stopper 110 and the clutch actuator 108, a closure element, configured as a bayonet lock 128: a first part of the bayonet lock 128 is connected to the rotary bearing ring 117 of the declutching stop 110, by means of at least one breaking point 118. A second part of the rod closure 128 is connected to the fixed bearing ring 119 or integral with the casing , o when the two parts of the bayonet 128 are connected to each other, the connection between the first part of the bayonet 128 and the rotary bearing ring

  117 can be undone by breaking the breaking point 118.

  The first rotation movement of the internal combustion engine, after assembly, is used by the vehicle engine and by the vehicle gearbox, to rotate the lock. For this, the rotary bearing ring 117 of the clutch release bearing 110 is firstly connected to the bayonet lock 128. When the bayonet lock 128 is completely inserted by virtue of the rotation of the motor, this connection, which connects the first part of the bayonet closure 128 to the rotary bearing ring 117, can be undone at the breaking point 118, so that the declutching stop 110 can then rotate freely. The connection, suitable for pulled and pushed actuation, can be made more advantageously. Thanks to the correct design of the bayonet lock 128, the connection can be

  achieved with zero clearance and automatic centering.

  To undo the connection again, for example in the event of overhaul or similar operations, the rod can be turned in the opposite direction, that is to say in the direction opposite to the direction of rotation of the motor. To this end, an opening closed for example by a rubber end-piece or the like is provided in the gearbox casing. It is thus possible to turn the locking mechanism 128 using a tool. We can design different configurations here. To reassemble again, in the event of overhaul, the locking mechanism 128 must again be turned and locked using a tool, through the opening designed in the clutch housing 102. As a variant, the part with breaking point 118 can be replaced by a new part, so that locking can again be carried out automatically thanks to the

motor rotation movement.

  Another solution is that the clutch release bearing 110, which is not a deep groove ball bearing but a grooved ball bearing, can be fixed, when mounting the clutch pressure plate, to the tongues Belleville washer 127. The Belleville 127 washer tabs are then pressed from the side of the engine and gearbox. This fitting is clamped by an additional Belleville 120 washer (smaller). For this, the Belleville washer 120, illustrated in more detail in Figures lSa and l5b, can be pressed and inserted. Ideally, this Belleville 120 washer can be placed so that the clamping force is greater than the expected actuation force of the clutch (pulling force), even when the washer tabs

  Belleville 127 are in the closed position.

  When the clutch actuation force is greater than the elasticity of the additional Belleville 120 washer, the additional Belleville 120 washer may have a characteristic curve of increasing elasticity as a function of the clearance (see the diagram in FIG. 16). which prevents a sudden return of the additional Belleville washer. A sudden return corresponds to a break in the mounting structure of the vehicle clutch. The elasticity means that there is no play in the fitting when switching from the pushed actuation to the pulled actuation. The characteristic curve

  of the Belleville washer 120 is shown in Figure 16.

  The rotary bearing ring 117 provided with the flaps 121 is shown in more detail in FIGS. 17a and 17b. During assembly, the flaps 121 are

  close behind the first part of the bayonet lock 128.

  In accordance with Figures i8a and l8b, the part of the closure at

  baőnnette 128 fixed to the clutch release bearing 110 is illustrated in more detail.

  In FIGS. I9a to l9c are shown different views of the fixed bearing ring 119. It can be observed in particular, from these representations, that a locking mechanism and a connection to the stationary fixed bearing ring 119 are produced with an automatic centering function.

  The claims submitted jointly with the filing are

  wording proposals, without prejudice to obtaining patent protection. The depositary reserves the right to request additional characteristic combinations, so far disclosed

  only in description and / or diagrams.

  The references used in the subclaims draw attention to

  a variant of the subject of the main claim, through the features of the sub-claim concerned; they should not be understood as a renunciation of obtaining independent protection and

  figurative for combinations of features of the claims

to which reference is made.

  Given that, given the current state of the art, the subjects of

  subclaims may constitute own and independent inventions to

  the priority date, the depositary reserves the right to define them as subject of

  independent claims or divisional statements. They can

  also contain independent inventions, which present an organization

  not dependent on the subjects of the preceding subclaims.

  The exemplary embodiments should not be understood as a limitation of the invention. On the contrary, numerous variants and modifications are possible within the framework of the present disclosure, in particular the variants, elements and combinations and / or materials which, in view of the solution, can for example be abandoned thanks to the combination or the rearrangement associated characteristics, elements or process steps, intended for

  specialists and presented in the description, the general embodiments and

  the claims and illustrated in the diagrams, or which may lead to a

  new subject or new process steps or sequences of process steps, even insofar as they relate to production, control and

of work.

Claims (43)

  1. declutching system for a clutch of an automatic gearbox of a vehicle, comprising at least one clutch actuator, connected to a clutch declutching stopper by means of a transmission member, characterized in that it is intended, as a transmission organ,   at least one module that can be mounted beforehand.   2. Clutch release system according to claim 1, characterized in that the module comprises an actuation lever (104) previously mounted on a lever support (122).   3. Release system according to claim 2, characterized in that the lever support comprises a base (105) provided with a location for   support for the actuation lever (104).   4. Clutch release system according to claim 2 or 3, characterized in that the actuation lever (104) has an elongated base, positioned in an orientable manner approximately in the middle of the lever support (122), o the base   has a first free end and a second free end.   5. declutching system according to claim 4, characterized in that the first end is connected to the declutching stop (110) and in that the   second end is connected to the clutch actuator (108).   6. declutching system according to claim 5, characterized in that the first end of the actuating lever (104) meshes in a recess subjected to the action of a spring of a guide element, said   recess being connected to the release bearing (110).   7. Clutch release system according to claim 5 or 6, characterized in that the second end of the actuating lever meshes in a recess subjected to the action of a spring of a drive part (125) of the clutch actuator (108).   8. Clutch release system according to one of claims 3 to 7,   characterized in that at least one common thread connection (112) is provided for fixing the clutch actuator and the lever base (105)   clutch bell.   9. Method for mounting a declutching system on a clutch,   in particular according to one of claims 1 to 8, characterized in that a member   previously mounted transmission is placed in the clutch housing (102) of the clutch (109) as a module, in that a first end of the transmission member configured as an actuating lever is connected to a clutch release bearing and in that the clutch actuator is then placed in the clutch housing (102) and connected to a second end of the actuating lever. 10. Method according to claim 9, characterized in that the clutch actuator (108) and a base (105) of the actuating lever are fixed using   at least one common thread connection.   He. Method according to claim 9 or 10, characterized in that the clutch is mounted on the drive shaft, o the declutching stop (110) is fixed to the Belleville washer tabs (127) and o the declutching stop (110) East   aligned with the guide element.   12. Method according to claim 11, characterized in that a guide sleeve (103) is used as a guide element, said sleeve   guide being automatically connected to the clutch release bearing (110).   13. Clutch release system for a clutch of an automatic gearbox of a vehicle, comprising at least one clutch actuator, connected to a clutch release clutch bearing by means of a   transmission, in particular according to one of claims 1 to 8, characterized in   that there is provided at least one flexible closure element (115) provided with at least one locking element (116) for fixing an actuation lever configured as   that transmission member to the clutch release bearing.   14. The declutching system according to claim 13, characterized in that the actuating lever (104) is connected to the declutching stop (110) by the through a guide device.   15. The declutching system according to claim 14, characterized in that at the same time a free end of the actuating lever and the declutching stop, as well as the closing element (115) and the locking element ( 116), are fixed at guide device.   16. Clutch release system according to one of claims 13 to 15,   characterized in that the locking element (116) can be positioned so that the closure element (115) is in an open position before the   mounting and in a closed position after mounting.   17. Release system according to one of claims 13 to 16,   characterized in that at least one disassembly point is provided for disassembly.   18. The declutching system according to one of claims 13 to 17,   characterized in that the closure element (115) has several points of elasticity.   19. Release system according to one of claims 13 to 18,   characterized in that the closure element is integrated in a compensation   radial (123) of the clutch release bearing (110).   20. Clutch release system according to one of claims 13 to 19,   characterized in that an essentially radial movement is provided for   opening and closing the shutter member (115).   21. Release system according to one of claims 13 to 20,   characterized in that a rotational movement is provided for opening and   closing the closure element (115).   22. Method for mounting a declutching system for a   clutch, in particular according to one of claims 13 to 21, characterized in   that the locking element (116) is positioned, before assembly, by a spring element, so that the closure element (115) is held in a   open position before mounting and in a closed position after mounting.   23. Method according to claim 22, characterized in that the blocking element (116) is held by the spring element before mounting and in that the closure element (115) is blocked by the element blocking in a open position.   24. The method of claim 22 or 23, characterized in that during assembly, the clutch release bearing (110) is applied against the element of   blocking (116), where the shutter element is blocked.   25. Method according to one of claims 22 to 24, characterized in that   that during assembly, the locking element (116) is moved by the clutch release bearing (110), due to the mounting force acting against the   spring preload of the spring element.   26. Method according to claim 25, characterized in that the element   shutter (115) is released by the locking element (116).   27. Method according to one of claims 22 to 26, characterized in that   the locking element (116) is brought into an open position after mounting, o the shutter element (115) is brought into a closed position by   its own pre-tension, the assembly being thus finished.   28. Method according to one of claims 22 to 27, characterized in that   that the closure element (115) is removed for disassembly.   29. Method according to claim 28, characterized in that the element   shutter (115) is removed from the side.   30. The method of claim 28 or 29, characterized in that the closure element (115) is rotated, in order to be brought into an open position.   31. Method according to one of claims 28 to 30, characterized in that   the operating lever (104) is removed from the side, in order to open radially the closure element (115).   32. Method according to one of claims 28 to 30, characterized in that   the actuating lever (104) is rotated to open the element radially   shutter (115) by means of ramps.   33. Release system for a clutch of an automatic gearbox of a vehicle, comprising at least one clutch actuator, connected to Belleville washer tabs to allow actuation of   the clutch, in particular according to one of claims 1 to 8 and 13 to 21,   characterized in that the Belleville washer tabs (127) are placed in an attachment structure for the Belleville washer tabs (126) of the clutch release bearing to allow the clutch to be pushed and pulled, said clutch release bearing being connected to the clutch actuator by means of a self-sealing connection.   34. A declutching system according to claim 33, characterized in that there is provided at least one closure element making it possible to connect the stop.   clutch (110) and the clutch actuator (108).   35. A declutching system according to claim 34, characterized in that a bayonet closure (128) is provided as a shutter element. (115).   36. The declutching system according to claim 35, characterized in that a first part of the ba lannette closure (128) is connected to the rotary bearing ring (117) of the declutching stopper by means of at least one breaking point and in that a second part of the bayonet closure (128) is connected to the fixed bearing ring, o, when the two parts of the closure 23 2841949   baőnnette (128) are connected to each other, the connection between the first part of the baőnnette closure (128) and the rotary bearing ring (117) is   defeated by breaking the breaking point.   37. The clutch release bearing according to claim 36, characterized in that the fixed bearing ring (119) of the clutch release bearing has, as part of the locking mechanism, several flaps (121) oriented radially inwards. , o movements of the fixed bearing ring are provided   (119) for automatic centering, in a radial direction.   38. A declutching system according to claim 36 or 37, characterized in that a grooved ball bearing is provided as a declutching stop (110), said grooved ball bearing being fixed to the washer tabs.   Belleville (127) when mounting the clutch pressure plate.   39. Release system according to one of claims 33 to 38,   characterized in that the hooking structure of the Belleville washer tabs (126) comprises an additional smaller Belleville washer (120) for tightening the Belleville washer tabs, where the Belleville washer (120) is placed so that the force torque is greater than the expected clutch actuation force, even when the washer tabs   Belleville clutch are in the closed position.   40. Method for mounting the declutching system, in particular according to   one of claims 33 to 39, in which a clutch release bearing is connected to   a clutch actuator, characterized in that the clutch release bearing (110) is connected to the clutch actuator (108) with zero play and centering   automatic by means of a self-sealing connection.   41. Method according to claim 40, characterized in that a   bar closure (128) is used as a self-sealing fitting.   42. Method according to claim 41, characterized in that a rotary bearing ring of the declutching stop (110) is first of all connected to a first part of the ba lannette closure (128) and in that a fixed bearing ring of the clutch release bearing (110) is connected to a second part of the bayonet lock (128), where the bayonet lock (128) is completely inserted thanks to the rotation of the motor and o the connection between the first part of the bayonet closure (128) and the bearing ring   is defeated at a breaking point. 24 2841949   43. Method according to one of claims 40 to 42, characterized in that   that the second part of the baőnnette closure is fixed to the fixed bearing ring of the declutching stop (110) by the flattening or actuation of some flaps (121) oriented radially inwards, so that no axial play is observed.   44. Method according to one of claims 40 to 43, characterized in that   that a grooved ball bearing is used as a clutch release bearing (110), said grooved ball bearing being fixed to the Belleville washer tabs (127) during assembly of the clutch pressure plate, o the   Belleville washer (127) are clamped by an additional Belleville washer.   45. Method according to one of claims 40 to 44, characterized in that   that the ba fermeturennette closure (128) is turned, to be undone, in the direction   contrary to the direction of rotation of the motor.