• 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 friction disc (1), in particular for a motor vehicle, comprising at least one annular friction lining (2) mounted on a support, characterized in that said support comprises at least one sector (14) comprising two blades. (15) each having a radially outer edge (16) and a radially inner edge (17) connected by side edges (18), each sector (14) having a circumferentially extending connecting region (19), the edge radially internal (17) of each blade (15) of said sector (14) being attached to the connecting zone (19), via a tab (20) extending radially.
    公开号:FR3041053A1
    申请号:FR1558553
    申请日:2015-09-14
    公开日:2017-03-17
    发明作者:Eric Giraud
    申请人:Valeo Embrayages SAS；
    IPC主号:
    专利说明:

    Friction disc, in particular for a motor vehicle
    The present invention relates to a friction disk, in particular for a motor vehicle.
    A clutch device conventionally comprises a pressure plate rotatably coupled to a reaction plate, between which is mounted a friction disc. The pressure and reaction plates are for example rotatably coupled to an output shaft of an internal combustion engine, such as for example a crankshaft. The pressure plate is axially movable relative to the reaction plate, between an engaged position in which said plates enclose the friction disk, and a disengaged position in which said plates release the friction disk. The friction disk is for example rotatably coupled to an input shaft of a gearbox. Thus, in the engaged position, the torque is transmitted from the crankshaft of the engine to the input shaft of the gearbox.
    Such a friction disk conventionally comprises an annular support on either side of which are fixed annular friction linings, intended to rub against the pressure plates and reaction of the clutch device in the engaged position.
    The support generally consists of several blades arranged adjacently to form a ring.
    Each blade is formed by a sheet or a foil and has a radially outer edge and a radially inner edge connected by lateral edges, a tab connecting the inner edge of each blade to a radially inner connecting portion. The connecting part is fixed, for example by riveting, to a guide ring or a web. The guide washer or the web is intended to be coupled to the input shaft of a gearbox, either directly or via rotating damping means.
    The support is for example composed of eight regularly distributed blades circumferentially, the connecting portion of each blade being fixed by at least two rivets to the guide ring or the corresponding web.
    Thus, the number of rivets used is high and it is necessary to have a press capable of providing a significant effort to perform a constituent operation to rivet all the blades simultaneously.
    Moreover, given the number of separate parts from each other, such an assembly is relatively tedious. The invention aims in particular to provide a simple, effective and economical solution to this problem. For this purpose, it proposes a friction disc, in particular for a motor vehicle, comprising at least one annular friction lining mounted on a support, characterized in that said support comprises at least one sector comprising two blades each having a radially outer edge and a radially inner edge connected by lateral edges, each sector having a connecting zone extending circumferentially, the radially inner edge of each blade of said sector being attached to the connection zone, via a tab extending radially.
    The blades are thus grouped in pairs within the same sector, so that the number of separate parts is limited. Moreover, the number of rivets used can be reduced.
    The circumferential dimension of each lug may be smaller than the circumferential dimension of the corresponding blade.
    Furthermore, the radially outer edge of each blade may be curved and may be located opposite the radially outer edge of the friction lining.
    In addition, the radially inner edge of each blade may comprise a first and a second zone located respectively on either side of the corresponding tab, said zones being generally rectilinear and extending obliquely with respect to the circumferential direction, the ends of said rectilinear areas which are remote from the corresponding tab being located radially inward with respect to the ends of said rectilinear areas which are close to said tab.
    The radially outer edge of the connection zone comprises two rectilinear zones circumferentially located between said tabs and extending obliquely with respect to the circumferential direction, the ends of said rectilinear zones which are remote from the tabs being located radially inwardly by ratio to the ends of said rectilinear areas which are close to said tabs.
    Said oblique rectilinear zones as well as the adjacent lateral edges of the same sector define a slot of complex shape, having a radial part, attached to a generally V-shaped part whose apex is turned radially inwards.
    According to one characteristic, the lateral edges of the blades can extend radially, at least in part.
    The radially outer edges of the blades or the radially inner edges of the blades, on the one hand, and the corresponding lateral edges of the blades, on the other hand, can be connected by rounded areas and / or by rectilinear zones extending from obliquely to the radial direction and to the circumferential direction.
    Each blade may be formed by a sheet and may comprise folds or deformations able to give said blade an elasticity in the axial direction.
    The elastic folds or deformations thus allow axial displacement of the friction linings during the clutch, so as to dampen shocks and vibrations during operation.
    In addition, the friction disc may comprise at least two stacked sectors, arranged axially opposite one another, the friction lining being mounted on the two stacked sectors.
    The friction disc may also include a torque output member for coupling to an input shaft of a gearbox, the torque output member being connected to the carrier via damping means torsion.
    Said damping means can dampen vibrations and rotational acyclisms. 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 non-limiting example with reference to the accompanying drawings, in which: FIGS. 1 to 4 represent a friction disc according to a first embodiment of the invention, in particular - Figure 1 is an axial sectional view of the friction disk; - Figure 2 is an exploded perspective view of the friction disk; FIG. 3 is a perspective view of the friction disc, FIG. 4 is a front view of a sector of the support of packings; FIG. 5 is an exploded view, in perspective, of a friction disc according to FIG. second embodiment of the invention, - Figures 6 and 7 show a friction disc according to a third embodiment of the invention, in particular - Figure 6 is an exploded perspective view of the disc FIG. 7 is a perspective view of the friction disc, and FIG. 8 is an exploded perspective view of the friction disk according to a fourth embodiment of the invention.
    Figures 1 to 4 show a friction disc 1 for a motor vehicle according to a first embodiment of the invention. This comprises an X axis and annular friction linings 2 located axially on either side of a support via rivets 3.
    The terms "axial" and "radial" are defined by reference to the axis X. The friction disk 1 further comprises two annular guide rings 4 fixed to one another by means of spacers 5s. extending axially and riveted at their ends on said guide washers 4. The support is fixed to one of said guide washers 4 by means of rivets 6.
    The friction disc 1 further comprises a radial annular web 7, located axially between said guide washers 4. The radially inner periphery of the web 7 is rotatably coupled to a splined hub 8, intended to be rotatably coupled to a drive shaft. input of a gearbox.
    The guide washers 4 are mounted and guided in rotation around the hub 8 by means of a plain bearing 9.
    The annular web 7 comprises circumferentially extending windows 10 in which resilient members are mounted, in particular helical compression springs 11. Windows 12 are also provided in the guide washers 4 in order to allow the assembly of the elastic members. 11. Each resilient member 11 has one end bearing on the annular web 7 and one end bearing on the guide washers 4. In this way, the guide washers 4 are rotatable relative to the annular web 7, on a defined angular range, against a resisting torque exerted by the resilient members 11. Friction means 13 are also mounted between the guide washers 4 and the annular web 7. The elastic members 11 and the friction means 13 form a vibration damping stage and rotating acyclisms.
    The support is formed of two stages of sectors 14, each stage being composed of distinct and adjacent sectors 14 forming a ring. In this embodiment, each stage has four sectors 14.
    The sectors 14 preferably have identical structures.
    Each sector 14 is in the form of a metal sheet or a foil whose thickness is for example between 0.3 and 0.6 mm.
    As best seen in Figure 4, each sector 14 comprises two blades 15 each having a radially outer edge 16 and a radially inner edge 17 connected by side edges 18. Each sector 14 further comprises a connecting zone 19 s' extending circumferentially, the radially inner edge 17 of each blade 18 of said sector 14 being attached to the connecting zone 19, via a tab 20 extending radially.
    The circumferential dimension of each lug 20 is smaller than the circumferential dimension of the corresponding blade 15.
    The radially outer edge 16 of each blade is curved, in the form of a circular arc, and is located opposite the radially outer edge of the friction linings 2.
    The radially inner edge 17 of each blade has a first and a second zone 17a, 17b located respectively on either side of the corresponding tab 20, said zones 17a, 17b being generally straight and extending obliquely with respect to the circumferential direction, the ends of said rectilinear zones 17a, 17b which are remote from the corresponding tab 20 being located radially inward with respect to the ends of said rectilinear zones 17a, 17b which are close to said tab 20.
    Furthermore, the radially outer edge of the connecting zone 19 comprises two rectilinear zones 21a, 21b circumferentially located between said tabs 20 and situated on either side of the center of the connection zone. Said zones 21a, 21b extend obliquely with respect to the circumferential direction, the ends of said rectilinear zones 21a, 21b which are remote from the tabs 20 being situated radially inward with respect to the ends of said rectilinear zones 21a, 21b which are close to said legs.
    In addition, the lateral edges of the blades 18 extend radially, at least in part.
    The radially outer edges 16 of the blades 15 and the corresponding lateral edges 18 of the blades 15 are connected by rectilinear zones 22 extending obliquely with respect to the radial direction and with respect to the circumferential direction. In addition, the radially inner edges 17 of the blades 15 and the corresponding lateral edges 18 of the blades 15 are connected by rounded zones 23.
    Said oblique rectilinear zones 17a, 17b, 21a, 21b as well as the adjacent lateral edges 18 of the same sector 15 define a slit 24 of complex shape, having a radial portion 24a, attached to a generally V-shaped portion 24b, the top is turned radially inwards. Alternatively, the portion 24b may be substantially rectilinear and perpendicular to the radial direction.
    Each blade 15 has folds or deformations 25 able to give said blade 15 an elasticity in the axial direction, as is best seen in Figure 2 for example.
    Each blade 15 has holes 26 for fixing the linings 2 with the rivets 3. Furthermore, each connecting zone 19 has holes 27 for securing the sector 15 to the corresponding guide washer 4, for example. through the rivets 6.
    FIG. 5 illustrates a second embodiment of the friction disk 1, which differs from that described with reference to FIGS. 1 to 4 in that the support has only one stage of sectors 14.
    Figures 6 and 7 show a third embodiment, which differs from that described with reference to Figures 1 to 4 in that the support formed by the sectors 14 is fixed to an annular web 28 secured or integral with the central hub fluted 8.
    The web 28 is perforated and thus comprises lumens 29, for example of generally trapezoidal shape. The connection zones 19 of the sectors 14 are fixed at the radially outer periphery of the web 28 by means of the rivets 6. Such a friction disc 1 is said to be rigid in that it does not have torsional damping means, unlike to that discussed with reference to Figures 1 to 4.
    FIG. 8 illustrates a fourth embodiment of the friction disk 1, which differs from that described with reference to FIGS. 6 and 7 in that the support has only one stage of sectors 14.
    In each of the embodiments described above, the blades 15 are grouped together in pairs within the same sector 14, so that the number of parts of the friction disc 1 is limited by comparison with the prior art where all the blades are distinct from each other. Moreover, the number of rivets 6 used for fixing the sectors 14 on the web 28 or the corresponding guide washer 4 can be reduced.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    1. Friction disc (1), in particular for a motor vehicle, comprising at least one annular friction lining (2) mounted on a support, characterized in that said support comprises at least one sector (14) comprising two blades (15) each having a radially outer edge (16) and a radially inner edge (17) joined by side edges (18), each sector (14) having a circumferentially extending connecting region (19), the radially inner edge (17); ) of each blade (15) of said sector (14) being attached to the connecting zone (19), via a tab (20) extending radially.
    [2" id="c-fr-0002]
    2. Friction disc (1) according to claim 1, characterized in that the circumferential dimension of each lug (20) is smaller than the circumferential dimension of the corresponding blade (15).
    [3" id="c-fr-0003]
    3. Friction disc (1) according to claim 1 or 2, characterized in that the radially outer edge (16) of each blade (15) is curved and is located opposite the radially outer edge of the friction lining (2). ).
    [4" id="c-fr-0004]
    4. Friction disc (1) according to one of claims 1 to 3, characterized in that the radially inner edge (17) of each blade (15) comprises a first and a second zones (17a, 17b) located respectively of on either side of the corresponding tab (20), said zones (17a, 17b) being generally rectilinear and extending obliquely with respect to the circumferential direction, the ends of said rectilinear zones (17a, 71b) being remote the corresponding tab (20) being located radially inwardly relative to the ends of said rectilinear areas (17a, 17b) which are close to said tab (20).
    [5" id="c-fr-0005]
    5. Friction disc (1) according to one of claims 1 to 4, characterized in that the radially outer edge of the connecting zone (19) comprises two rectilinear zones (21a, 21b) located circumferentially between said tabs (20). ) and extending obliquely with respect to the circumferential direction, the ends of said rectilinear zones (21a, 21b) which are remote from the tabs (20) being located radially inward with respect to the ends of said rectilinear zones (21a, 21b) which are close to said tabs (20).
    [6" id="c-fr-0006]
    6. Friction disc (1) according to one of claims 1 to 5, characterized in that the lateral edges (18) of the blades extend radially, at least in part.
    [7" id="c-fr-0007]
    7. friction disc (1) according to one of claims 1 to 6, characterized in that the radially outer edges (16) of the blades (15) or the radially inner edges (17) of the blades (15), on the one hand, and the corresponding lateral edges (18) of the blades (15), on the other hand, are connected by rounded areas (23) and / or by rectilinear zones (22) extending obliquely with respect to the radial direction and with respect to the circumferential direction.
    [8" id="c-fr-0008]
    8. friction disc (1) according to one of claims 1 to 7, characterized in that each blade (15) is formed by a sheet and comprises folds or deformations (25) adapted to impart to said blade (15). ) an elasticity in the axial direction.
    [9" id="c-fr-0009]
    9. friction disc (1) according to one of claims 1 to 8, characterized in that it comprises at least two sectors (14) stacked, arranged axially facing each other, the friction lining (2) being mounted on the two stacked sectors.
    [10" id="c-fr-0010]
    10. Friction disc (1) according to one of claims 1 to 9, characterized in that it comprises a torque output member (8) for coupling to an input shaft of a gearbox the torque output member (8) being connected to the support (14) via torsion damping means (4, 7, 11).
    类似技术:
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    同族专利:
    公开号 | 公开日
    FR3041053B1|2017-09-15|
    EP3147525A1|2017-03-29|
    HUE039442T2|2018-12-28|
    CN106838075B|2021-06-01|
    EP3147525B1|2018-06-13|
    CN106838075A|2017-06-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB388704A|1931-02-19|1933-03-02|Edward Albert Rockwell|New or improved friction gripping member|
    FR2043374A5|1969-04-22|1971-02-12|Luk Lamellen & Kupplungsbau|
    EP0180389A2|1984-10-26|1986-05-07|Brake And Clutch Industries Australia Pty. Ltd.|Friction components for clutch plates and the like|
    DE19530268A1|1994-08-24|1996-03-07|Daikin Mfg Co Ltd|Clutch and assembly procedure|
    WO2006027552A1|2004-09-09|2006-03-16|Automotive Products S.P.A.|Clutch driven plates|
    GB2257209B|1991-06-26|1995-06-14|Automotive Products Plc|A clutch driven plate|
    DE4226762C2|1992-08-13|2002-08-29|Zf Sachs Ag|Clutch disc with pad spring|
    DE4409253C2|1994-03-18|2000-10-12|Mannesmann Sachs Ag|Fastening of the pad spring segments on the drive plate|
    DE19505620A1|1995-02-18|1996-08-29|Fichtel & Sachs Ag|Clutch disc for vehicle friction clutch|
    DE19529074C1|1995-08-08|1996-09-12|Fichtel & Sachs Ag|Clutch disc for friction clutch|
    DE19529073C1|1995-08-08|1996-09-12|Fichtel & Sachs Ag|Clutch disc for friction clutch in IC engine|
    FR2745351B1|1996-02-27|1998-04-24|Valeo|FRICTION LINING DISC FOR MECHANICAL CLUTCH|
    JP2002130324A|2000-10-31|2002-05-09|Exedy Corp|Method for manufacturing of cushioning plate for clutch|
    DE10227319A1|2002-06-19|2004-01-08|Zf Sachs Ag|Clutch disc for vehicle friction clutch comprises lining spring elements directly connected on flywheel side between radially aligned region and foot region so that no axial force is exerted on foot region in engaged state|
    DE10238365A1|2002-08-22|2004-03-04|Zf Sachs Ag|clutch disc|
    DE102005003507B4|2005-01-26|2009-01-02|Luk Lamellen Und Kupplungsbau Beteiligungs Kg|clutch disc|
    DE112007002508A5|2006-11-15|2009-07-23|Luk Lamellen Und Kupplungsbau Beteiligungs Kg|clutch disc|
    CN203822890U|2014-04-30|2014-09-10|芜湖禾丰离合器有限公司|Clutch waveform piece|FR3068096B1|2017-06-26|2019-08-16|Valeo Embrayages|CLUTCH DISC COMPRISING BLADES WITH STIFFENERS|
    CN110375018A|2019-06-24|2019-10-25|中国科学院山西煤炭化学研究所|A kind of bullet train brake pad and its installation method|
    FR3097916A1|2019-06-28|2021-01-01|Valeo Embrayages|Friction disc and clutch disc comprising such a friction disc|
    FR3108695A1|2020-03-31|2021-10-01|Valeo Embrayages|PROGRESSIVE DEVICE FOR FRICTIONAL CLUTCH DISC AND FRICTIONAL CLUTCH DISC INTEGRATING SUCH A DEVICE|
    法律状态:
    2016-09-28| PLFP| Fee payment|Year of fee payment: 2 |
    2017-03-17| PLSC| Search report ready|Effective date: 20170317 |
    2017-09-29| PLFP| Fee payment|Year of fee payment: 3 |
    2018-09-28| PLFP| Fee payment|Year of fee payment: 4 |
    2019-09-30| PLFP| Fee payment|Year of fee payment: 5 |
    2020-09-30| PLFP| Fee payment|Year of fee payment: 6 |
    2021-09-30| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1558553A|FR3041053B1|2015-09-14|2015-09-14|FRICTION DISC, IN PARTICULAR FOR A MOTOR VEHICLE|FR1558553A| FR3041053B1|2015-09-14|2015-09-14|FRICTION DISC, IN PARTICULAR FOR A MOTOR VEHICLE|
    EP16188190.9A| EP3147525B1|2015-09-14|2016-09-09|Friction disc, in particular for motor vehicle|
    HUE16188190A| HUE039442T2|2015-09-14|2016-09-09|Friction disc, in particular for motor vehicle|
    CN201610825441.4A| CN106838075B|2015-09-14|2016-09-14|Friction disc, in particular for a motor vehicle|
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