• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a clutch device (1) for a motor vehicle, comprising torque input means (2) for coupling to a crankshaft, a first torque output shaft (31), a second shaft torque output device (37), a first clutch mechanism adapted to couple or uncouple the torque input means (2) and the first torque output shaft (31), a second clutch mechanism capable of coupling or decoupling the torque input means (2) and the second torque output shaft (37),
    公开号:FR3024508A1
    申请号:FR1457498
    申请日:2014-08-01
    公开日:2016-02-05
    发明作者:Rabah Arhab；Herve Ribot；Laurent Caumartin
    申请人:Valeo Embrayages SAS；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a clutch device for a motor vehicle.
    [0002] Patent Application DE 10 2011 006 027 discloses a clutch device for a motor vehicle, comprising torque input means for coupling to a crankshaft, a first torque output shaft, a second output shaft of torque, a first clutch mechanism capable of coupling or decoupling the torque input means and the first torque output shaft, and a second clutch mechanism capable of coupling or decoupling the torque input means and the second torque output shaft. The first and second clutch mechanisms respectively comprise first and second disks respectively mounted on a first and a second external support belonging to the torque input means. The first and second clutch mechanisms further comprise respectively first and second counter-disks respectively mounted on a first and a second internal support rotatably coupled respectively to the first and second torque output shafts. Each internal support comprises a radially inner hub mounted around the corresponding torque output shaft, said hub and said corresponding torque output shaft having complementary rotational coupling means, such as for example complementary splines.
    [0003] In addition, the hub of the first internal support is held axially in position by means of two circlip type elastic rings and an adjusting washer to reduce the axial mounting clearance. The number of elements necessary for such an assembly is therefore relatively important.
    [0004] Moreover, in order to realize the mounting of such a clutch device on a gearbox, that is to say in order to mount the hubs of the internal supports on the corresponding torque output shafts (which also form the input shafts of the gearbox), it is necessary to disassemble a part of the device, in particular the torque input means, in order to have access to the elastic rings. This is relatively tedious, expensive and can be a source of error or damage to the device when mounted on the gearbox. The invention aims in particular to provide a simple, effective and economical solution to the aforementioned problems. For this purpose, it proposes a clutch device for a motor vehicle, comprising torque input means intended to be coupled to a crankshaft, a first torque output shaft, a second torque output shaft, a first clutch mechanism adapted to couple or decouple the torque input means and the first torque output shaft, a second clutch mechanism adapted to couple or decouple the torque input means and the second output shaft of torque, the first and second clutch mechanisms respectively comprising first and second disks respectively mounted on a first and a second external support belonging to the torque input means, the first and second clutch mechanisms further comprising, respectively, first and second counter-disks respectively mounted on first and second inner supports rotatably coupled to the first and second shafts respectively e torque output, the first internal support and / or the second internal support having a radially inner hub mounted around the corresponding torque output shaft, said hub and said corresponding torque output shaft having rotational coupling means complementary, such as complementary splines, and axial positioning means of said hub on the corresponding torque output shaft, characterized in that the axial positioning means comprise at least one groove in the output shaft of corresponding torque, at least one groove in said hub, and at least one elastic ring adapted to be deformed between an unlocked position in which said elastic ring is housed in the groove of the corresponding torque output shaft so as to allow the mounting the hub around said corresponding output shaft, and a locked position in which said elastic ring that is housed both in the groove of said corresponding output shaft and in the groove of said hub, so as to axially immobilize the corresponding inner support on the corresponding output shaft. The mounting of the hub on the corresponding torque output shaft thus requires only one elastic ring, the axial end play being determined by the dimensional tolerance at the axial dimension of the ring and the axial dimensions of the rings. corresponding grooves of the hub and the output shaft. The cost and complexity of such a clutch device are therefore reduced, compared with the prior art. According to one characteristic of the invention, the hub comprises a chamfer or a fillet at one of the axial ends of its radially inner periphery, the elastic ring being able to be moved towards its unlocked position when the hub is being fitted around of the corresponding output shaft, by supporting said resilient ring on the chamfer or the fillet of the hub. Thus, the mounting of the hub of the internal support can be easily achieved on the corresponding torque output shaft, the elastic ring being deformed and then engage or lock in the aforementioned grooves, without intervention of an operator and without disassembly of a part of the device, unlike the prior art.
    [0005] Furthermore, the corresponding hub comprises at least one recess extending axially, opening axially into the groove of said hub. Such a recess makes it possible to constrain and unlock the elastic ring with the aid of a tool, so as to extract the hub of the internal support from the torque output shaft. Note however that such disassembly occurs only exceptionally. Preferably, the two torque output shafts are coaxial, the first torque output shaft being mounted radially inside the second torque output shaft, the first clutch mechanism being located radially outside the second torque output shaft. clutch mechanism. In addition, the first and second clutch mechanisms may be wet clutch mechanisms, that is to say lubricated with a fluid, such as oil. In this case, the torque input means may comprise a torque input member, rotatably coupled to the first external support and defining therewith an internal volume in which are housed the first and second clutch mechanisms and wherein a fluid is adapted to lubricate and cool in particular said clutch mechanisms, the torque input means further comprising a fluid supply hub rotatably coupled to the external supports, said supply hub surrounding the second shaft torque output device, the first internal support being located axially between the torque input member and the second internal support, the second internal support being located axially between the first internal support and the supply hub. A first bearing can then be mounted axially between the torque input member and the first internal support, a second bearing being mounted axially between the first internal support and the second internal support, a third bearing being mounted axially between the second support. internal and the feed hub, the feed hub being axially fixed relative to the first external support, itself fixed axially relative to the torque input member. These bearings are for example needle stops. In addition, each clutch mechanism may be associated with a piston capable of being actuated between a clutch position in which said piston plates the disks on the associated counter-disks of the corresponding clutch mechanism, and a disengaging position in said piston releases the disks and counter-disks of the corresponding clutch mechanism.
    [0006] In this case, each piston may be associated with a pressure chamber and a back pressure chamber, each piston being further subjected to a return force applied by an elastic return member, such as an elastic washer, tending to return the piston to its disengaged position.
    [0007] The invention also relates to a motor vehicle comprising at least one device of the aforementioned type. The invention will be better understood and other details, characteristics and advantages of the invention will become apparent on reading the following description given by way of nonlimiting example with reference to the appended drawings, in which: FIG. FIG. 2 is a detail view of a part of FIG. device. A clutch device 1 according to one embodiment of the invention is illustrated in FIGS. 1 to 3. The latter comprises a torque input member 2 comprising a front part 3 extending axially and intended to be coupled to a damping device, itself coupled to a crankshaft of an internal combustion engine of a motor vehicle, and a rear portion 4 extending radially. The front portion 3 302 4 508 6 comprises, from front to rear, a first cylindrical portion and a second cylindrical portion 6 and larger in diameter than the first portion 5. The radial rear portion 4 comprises a cylindrical rim 7 s' extending forwardly and having a diameter greater than the diameter of the second cylindrical portion 6. The first portion 5 serves for mounting a bearing. The second part 6 is intended to be coupled to the damping device, for example by means of complementary splines. The cylindrical flange 7 is adapted to support a seal 10 to prevent fluid, such as oil, from escaping to the engine side of the vehicle. The radially outer periphery of the rear portion 4 of the torque input member 2 is rotatably coupled to a first external support 8. More particularly, the first external support 8 has a generally cylindrical front portion 9 and a rear portion. 10 radially inwardly extending from the front portion 9. The radially outer periphery of the torque input member 2 is rotatably coupled to the front portion 9 and is held axially in position with the aid of FIG. an elastic ring or circlip 11.
    [0008] The torque input member 2 and the first external support 8 delimit an internal volume 12. First discs 13 are further mounted on the front portion 9 of the first external support 8, the first discs 13 being spaced apart from each other , housed in the aforementioned internal volume 12 and slidable along said front portion 9. The inner periphery of the rear portion 10 of the first external support 8 is fixed, for example by welding, to a fluid supply hub 14 for example in oil. A first seal support 15 is further secured, for example by spot welding or riveting, to the front face of the rear portion 10 of the first external support 8. The first seal support 15 has a cylindrical front portion 16 for to support a lip seal 17, and a rear radial annular portion 18 fixed to the first external support 8. The clutch device 1 further comprises a second external support 19 having, as before, a cylindrical front portion 20 and a annular rear portion 21 extending radially and whose radially inner periphery is fixed, for example by welding, to the feed hub 14. More particularly the rear portion 21 has a radially inner zone 21a and a radially outer zone 21b extending radially and axially offset from each other.
    [0009] The radially inner zone 21a is shifted forwardly relative to the radially outer zone 21b and is connected thereto by a cylindrical shoulder 21c. The rear portion 21 of the second external support 19 is mounted in front of the rear portion 10 of the first external support 8, the second external support 19 being housed inside the internal volume 12. Second disks 22 are further mounted on the front portion 20 of the second outer support 19, the second disks 22 being spaced from each other and are slidable along said front portion 20. A second seal support 23 is further secured, for example by spot welding or by riveting, on the front face of the zone 21a of the rear portion 21. The second joint support 23 comprises a front cylindrical portion 24, intended to support a lip seal 25, and a rear radial annular portion 26, fixed on the second external support 19. The clutch device 1 further comprises a first internal support 27 comprising a radially extending annular front portion 28 and a cylindrical rear portion 29 extending from the periphery radially outer portion of the front portion 28. A first cylindrical hub 30 is located radially inner periphery of the front portion 28. The first cylindrical hub 30 has internal splines cooperating with external splines of a first torque output shaft 31 or first input shaft of a gearbox. This shaft 31 is for example associated with odd gear ratios of the gearbox. First counter-discs 32 are coupled in rotation to the rear portion 29 of the first internal support 27 and are interposed each time between two first discs 13, the first against-discs 32 being able to slide along said rear portion 29. Each counter-disk 32 carries friction linings 33, as is well known per se. The first discs 13 and the first counter-discs 32 form a first wet clutch mechanism.
    [0010] The device further comprises a second internal support 33 comprising an annular front portion 34 extending radially and a cylindrical rear portion 35 extending from the radially outer periphery of the front portion 34. A second cylindrical hub 36 is located peripherally radially. The second cylindrical hub 36 has internal splines cooperating with external splines of a second torque output shaft 37 or second input shaft of a gearbox. This shaft 37 is for example associated with gear ratios even transmission. The torque output shafts 31, 37 and the feed hub 14 are coaxial, the second torque output shaft 37 being mounted within the feed hub 14, the first torque output shaft 31 being mounted within the second torque output shaft 37. Second counter-disks 38 are rotatably coupled to the rear portion 35 of the second internal support 33 and are interposed each time between two second disks 22, the second counter-disks. 38 being slidable along said rear portion 35. Each counter-disk 38 carries friction linings 39. The second disks 22 and second counter-disks 39 form a second wet clutch mechanism. The second clutch mechanism is located radially inside the first clutch mechanism. The front portion 28 of the first internal support 27 is located axially between the radial portion 4 of the torque input member 2 and the front portion 34 of the second internal support 33. The front portion 34 of the second internal support 33 is located axially. between the front portion 28 of the first internal support 27 and the front end of the supply hub 14. A bearing 40 is mounted axially between the torque input member 2 and the first internal support 27. A bearing 41 is mounted axially between the first internal support 27 and the second internal support 33. A bearing 42 is mounted axially between the second internal support 33 and the feed hub 14. These bearings 40, 41, 42 are for example formed by needle stops . In addition, a bearing 43 is mounted radially between the front end of the first torque output shaft 31 and the front portion 3 of the torque input member 2. Bearings 44 are further mounted radially between the hub 14 and the second shaft 37. These bearings 43, 44 are for example formed by roller bearings. The clutch device 1 also includes a first piston 45, associated with the first clutch mechanism. The first piston 45 is mounted axially between the first external support 8 and the second external support 19. The first piston 45 generally comprises two radially extending zones 45a, 45b radially offset from one another, delimiting between them a cylindrical shoulder 45c. The radially inner periphery 25 of the first piston 45 is equipped with a lip seal 46 resting on the outer surface of the supply hub 14. Furthermore, the seal 17 bears on the radially inner surface of the shoulder 45c of the first piston 45. A first sealed pressure chamber 47 is thus delimited by the zone 45b, the shoulder 45c, the joint support 15, the radially inner periphery of the first external support 8 and the feed hub 14.
    [0011] The radially outer periphery 45d of the first piston 45 is able to bear against one of the first discs 13. The first piston 45 is axially displaceable between a clutch position in which the first piston 45 tends to press the first discs 13 on the first counter-disks 32 associated with the first clutch mechanism, and a disengagement position in which the first piston 45 tends to release the first disks 13 and the first counter-disks 32 of the first clutch mechanism. A first washer 48 is mounted in front of the first piston 45, said first washer 48 being fixed on the rear face of the rear portion 21 of the second external support 19, more particularly in the zone 21a, said first washer 48 having a radial annular portion. before 49, the radially outer periphery is extended axially rearwardly by a cylindrical rear portion 50, located radially inside the shoulder 21c. A first elastic return member, such as for example a Belleville washer 51, is mounted axially between the front portion 49 of the first washer 48 and the first piston 45. The first elastic return member 51 thus tends to recall the first piston 45 to its disengaged position. The first clutch mechanism is therefore of the normally open type. The lip seal 46 carried by the shoulder 45c of the first piston 45 bears on the rear cylindrical portion 50 of the first washer 48. A first counterpressure chamber 52 is thus defined by the first washer 48, the first piston 45, the radially inner periphery of the second external support 19 and the feed hub 14. Furthermore, the clutch device comprises a second piston 53, associated with the second clutch mechanism. The second piston 53 is mounted axially between the second external support 19 and the second internal support 33. As previously, the second piston 53 carries a lip seal 54 at its inner periphery, said seal 54 resting on the feed hub 14, and a lip seal 55 at a shoulder 53c, said seal 55 bearing on a cylindrical portion of a second washer 56. The second washer 56 is mounted around the feed hub 14 and is placed at contact of it. A second elastic return member, such as for example a Belleville washer 57, is mounted between the second washer 56 and the second piston 53. A second sealed pressure chamber 58 is delimited by the second piston 53, the second seal holder 23, the inner periphery of the second external support 19 and the feed hub 14. A second counterpressure chamber 59 is delimited by the second washer 56, the second piston 53 and the feed hub 14. The radially outer periphery 53d of the second piston 53 is able to bear against one of the second discs 22. The second piston 53 is axially displaceable between a clutch position in which the second piston 53 tends to press the second discs 22 on the second against associated disks 38 of the second clutch mechanism, and a disengagement position in which the second piston 53 tends to release the second disks 22 and the second against-disks 38 of the second clutch mechanism. yage.
    [0012] The feed hub 14 has three ducts 61 defining two fluid circuits, namely a cooling circuit, a so-called low-pressure circuit and a so-called high-pressure circuit. Both low and high pressure circuits are powered by corresponding pumps. At least one of said pumps has a drive member 62 which is fixed to the hub 14, for example by welding, directly behind the first external support 8. The high-pressure circuit opens into the first and second pressure chambers 47 , 58 through orifices respectively referenced 63 and 64, while the low-pressure circuit opens into the first and second back pressure chambers 52, 59 and into the internal volume 9 housing in particular the first and second clutch mechanisms, by the orifices referenced respectively 65, 66 and 67. In operation, fluid under high pressure can be brought either to the first pressure chamber 47, or to the second pressure chamber 58, so as to respectively move the first piston 45 or the second piston 53 and thereby actuate the first clutch mechanism or the second clutch mechanism. When clutching the first clutch mechanism, the torque entering through the torque input member 2 is transmitted to the first torque output shaft 31 via the first external support 8, the first gear mechanism. clutch 13, 32 and the first internal support 27. When clutching the second clutch mechanism, the torque entering through the torque input member 2 is transmitted to the second torque output shaft via the first external support 8, the supply hub 14, the second external support 19, the second clutch mechanism 22, 38 and the second internal support 33. Note that the two clutch mechanisms can be actuated simultaneously at the time of the change of the gear ratio or at the moment of the torque transition. When said pressure chambers 47, 58 are not subjected to a fluid at high pressure, then the return members 51, 57 tend to return the pistons 45, 53 to their disengaging positions. In the following, we will focus on the mounting of the hub 30 of the first internal support 27 on the first shaft 31. As can be seen better in FIG. 2, the first shaft 30 has a grooved front zone 68 engaged in the hub 30 of the first internal support 27 and cooperating with the splines thereof to ensure a rotational coupling of the first shaft 31 and the first internal support 27. The first shaft 30 further comprises a groove 69 opening radially outward and located in the vicinity or in the grooved area 68. The hub 30 of the first internal support 27 also comprises a groove 70 opening radially inwards, located axially opposite the groove 69. An elastic ring or circlip 71 is mounted both in the groove 69 of the first shaft 31 and in the groove 70 of the first internal support 27, so as to ensure the axial positioning of the first internal support 27 on the first shaft 31. The rear end of hub 30 comprises a chamfer 72 situated at the radially inner periphery of said hub 30. Moreover, as illustrated in FIG. 3, the first shaft 31 has recesses 73 regularly distributed over the entire circumference, for example four in number. said recesses opening axially towards the front and into the groove 69 of the first shaft 31, said recesses 73 opening out radially outwards. Such a clutch device 1 can be mounted in the following manner. The assembly formed in particular by the torque input member 2, the external supports 8, 19, the internal supports 27, 33, the clutch mechanisms 13, 32; 22, 38, the feed hub 14, the pistons 45, 53, the washers 48, 56 and the resilient return members 51, 57 may be pre-assembled. This assembly is then engaged on the gearbox, in particular on the first and second shafts 31, 37 of the gearbox. During this engagement, the grooved areas of the first and second shafts 31, 37 are engaged in the corrugated hubs 30, 36 of the first and second internal supports 27, 33. In addition, the elastic ring 71 is deformed or constrained in an unlocked position in which it is housed only in the groove 69 of the first shaft 31, by pressing the radially outer periphery of said elastic ring 71 on the chamfer 72 of the hub 30 of the first internal support 27. The axial sliding of the first shaft 31 by The ratio to the corresponding corrugated hub 30 can be continued until the grooves 69, 70 are located axially opposite one another. In this position, the elastic ring 71 is deployed in the locked position, so as to extend both in the groove 69 of the first shaft 31 and in the groove 70 of the splined hub 30. It should be noted that such an assembly does not requires no disassembly, even partial, of the aforementioned pre-assembled assembly. Conversely, when it is desired to disassemble said set of first and second torque output shafts 31, 37, it is necessary to disassemble, for example, the torque input member 2 so that an operator can have access at the front end of the first shaft 31. For this, the removal of the elastic ring 11 separates the torque input member 2 di first external support 8. A tool can then be engaged axially in the recesses 73 the hub 30, so as to constrain the elastic ring 71 to its unlocked position, wherein it is housed only in the groove 69 of the first shaft 31. It is then possible to remove the aforementioned assembly, by sliding backwards along with the first and second torque output shafts 31, 37. The invention thus proposes a clutch device 1 of little complex structure, particularly easy to assemble while being able to be disassembled in certain particular cases. Note however that such disassembly occurs only exceptionally.
    权利要求:
    Claims (10)
    [0001]
    REVENDICATIONS1. Clutch device (1) for a motor vehicle, comprising torque input means (2) for coupling to a crankshaft, a first torque output shaft (31), a second torque output shaft ( 37), a first clutch mechanism capable of coupling or decoupling the torque input means (2) and the first torque output shaft (31), a second clutch mechanism capable of coupling or decoupling the drive means. torque input (2) and the second torque output shaft (37), the first and second clutch mechanisms respectively having first and second disks (13, 22) respectively mounted on a first and a second external support (8, 19) belonging to the torque input means, the first and second clutch mechanisms further comprising respectively first and second counter-disks (32, 38) respectively mounted on a first and a second internal support ( 27, 33) coupled in rotation respe to the first and second torque output shafts (31, 37), the first inner support (27) and / or the second inner support (33) having a radially inner hub (30) mounted around the output shaft. corresponding torque (31), said hub (30) and said corresponding torque output shaft (31) having complementary rotational coupling means, such as for example complementary splines, and axial positioning means of said hub on the hub. corresponding torque output shaft, characterized in that the axial positioning means comprise at least one groove (69) formed in the corresponding torque output shaft (31), at least one groove (70) formed in said hub (30), and at least one elastic ring (71) adapted to be deformed between an unlocked position in which said elastic ring is housed in the groove (69) of the corresponding torque output shaft (31) so as to allow mounting the hub (30) about said corresponding output shaft (31), and a latched position in which said resilient ring (71) is housed in both the groove (69) of said corresponding output shaft (31) and in the groove ( 70) of said hub (30), so as to axially immobilize the corresponding inner support (27) on the corresponding output shaft (31).
    [0002]
    2. Device (1) according to claim 1, characterized in that the hub (30) comprises a chamfer (72) or a fillet at one of the axial ends of its radially inner periphery, the elastic ring (71). ) being able to be moved to its unlocked position when mounting the hub (30) around the corresponding output shaft (31), by pressing said resilient ring (71) on the chamfer (72) or the hub fillet ( 30).
    [0003]
    3. Device (1) according to claim 1 or 2, characterized in that the hub (30) comprises at least one recess (73) extending axially, opening axially into the groove (70) of said hub (30).
    [0004]
    4. Device (1) according to one of claims 1 to 3, characterized in that the two torque output shafts (31, 37) are coaxial, the first torque output shaft (31) being mounted radially to the interior of the second torque output shaft (37), the first clutch mechanism (13, 32) being located radially outwardly of the second clutch mechanism (22, 38).
    [0005]
    5. Device (1) according to one of claims 1 to 4, characterized in that the first and second clutch mechanisms are wet clutch mechanisms.
    [0006]
    6. Device (1) according to claims 4 and 5, characterized in that the torque input means comprise a torque input member (2), coupled in rotation to the first external support (8) and delimiting with that an internal volume (9) in which are housed the first and second clutch mechanisms and wherein a fluid is intended to lubricate and cool in particular said clutch mechanisms, the torque input means further comprising a hub fluid supply means (14) rotatably coupled to the external supports (8, 19), said power hub (14) surrounding the second torque output shaft (37), the first internal support (27) being located axially between the torque input member (2) and the second internal support (33), the second internal support (33) being located axially between the first internal support (27) and the feed hub (14).
    [0007]
    7. Device (1) according to claim 6, characterized in that a first bearing (40) is mounted axially between the torque input member (2) and the first internal support (27), a second bearing ( 41) being axially mounted between the first inner support (27) and the second inner support (33), a third bearing (42) being axially mounted between the second inner support (33) and the feed hub (14), the supply hub (14) being fixed axially with respect to the first external support (8), itself fixed axially with respect to the torque input member (2).
    [0008]
    8. Device (1) according to one of claims 1 to 7, characterized in that each clutch mechanism is associated with a piston (45, 53) adapted to be actuated between a clutch position in which said piston ( 45, 53) plates the disks (13, 22) on the associated counter-disks (32, 38) of the corresponding clutch mechanism, and a disengaging position in which said piston (45, 53) releases the disks (13, 22) and the counter-discs (32, 38) of the corresponding clutch mechanism.
    [0009]
    9. Device (1) according to claim 8, characterized in that each piston (45, 53) is associated with a pressure chamber (47, 58) and a back pressure chamber (52, 59), each piston ( 45, 53) being further subjected to a return force applied by an elastic return member, such as for example a spring washer (51, 57), tending to return the piston (45, 53) to its disengaged position.
    [0010]
    10. Motor vehicle comprising at least one device (1) according to one of claims 1 to 9.30
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    同族专利:
    公开号 | 公开日
    EP2990678A1|2016-03-02|
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    DE102009052791A1|2009-11-11|2011-07-07|Knorr-Bremse Systeme für Nutzfahrzeuge GmbH, 80809|Device for coupling a drive shaft of an accessory of a commercial vehicle with a gear drive and method for producing this device|DE102016125074A1|2016-10-06|2018-04-12|Schaeffler Technologies AG & Co. KG|coupling device|
    KR101871917B1|2017-11-20|2018-06-27|주식회사 카펙발레오|Dual clutch device for vehicle|
    KR101871916B1|2017-11-20|2018-06-27|주식회사 카펙발레오|Dual clutch device for vehicle|
    FR3078028B1|2018-02-20|2020-02-28|Valeo Embrayages|TRANSMISSION DEVICE FOR HYBRID VEHICLE|
    DE102018128799A1|2018-11-16|2020-05-20|Schaeffler Technologies AG & Co. KG|Shaft-hub connection for a transmission with a double clutch device|
    法律状态:
    2015-08-31| PLFP| Fee payment|Year of fee payment: 2 |
    2016-02-05| PLSC| Publication of the preliminary search report|Effective date: 20160205 |
    2016-08-31| PLFP| Fee payment|Year of fee payment: 3 |
    2017-08-31| PLFP| Fee payment|Year of fee payment: 4 |
    2018-08-30| PLFP| Fee payment|Year of fee payment: 5 |
    2019-08-30| PLFP| Fee payment|Year of fee payment: 6 |
    2020-08-31| PLFP| Fee payment|Year of fee payment: 7 |
    2021-08-31| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1457498A|FR3024508B1|2014-08-01|2014-08-01|CLUTCH DEVICE FOR A MOTOR VEHICLE|FR1457498A| FR3024508B1|2014-08-01|2014-08-01|CLUTCH DEVICE FOR A MOTOR VEHICLE|
    EP15175488.4A| EP2990678B1|2014-08-01|2015-07-06|Clutch device for a motor vehicle|
    KR1020150107959A| KR20160016659A|2014-08-01|2015-07-30|Clutch device for an automobile|
    CN201510463222.1A| CN105317878B|2014-08-01|2015-07-31|Clutch apparatus for motor vehicles|
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