• 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:
    Device for damping torsional oscillations, comprising: - a support able to move in rotation about an axis, - at least one pendular body comprising: a first and a second pendulum masses (5) spaced axially one relative to each other and movable relative to the support, the first pendulum mass (5) being arranged axially on a first side of the support and the second pendulum mass (5) being arranged axially on a second side of the support, and at least one connecting member of the first and second pendulum masses (5) matching said masses, - at least one rolling member cooperating on the one hand with a running track defined by the support and on the other hand with at least one rolling track defined by the pendulum body to guide the displacement of the pendular body relative to the support, and - at least one interposition piece (30), arranged so as to avoid coming into contact according to the di axial rection between one of said pendulum masses (5) and at least one of the rolling member and the support, the interposition piece (30) comprising: - an interposition portion (33) configured to prevent said coming into contact in the axial direction (X), and - a fixing portion (34) on one of the pendulum masses (5) or on one of the rolling member and the support, the fixing portion (34) comprising at least two fixing lugs (36) and a reinforcement (45) connecting these two lugs (36).
    公开号:FR3029252A1
    申请号:FR1461664
    申请日:2014-11-28
    公开日:2016-06-03
    发明作者:Clement Tondellier
    申请人:Valeo Embrayages SAS；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a device for damping torsional oscillations, in particular for a motor vehicle transmission system. In such an application, the torsion oscillation damping device may be integrated with a torsion damping system of a clutch capable of selectively connecting the heat engine to the gearbox, in order to filter the vibrations due to motor acyclisms. Alternatively, in such an application, the torsional oscillation damping device may be integrated with a friction disk of the clutch or with a hydrodynamic torque converter. Such a device for damping torsional oscillations conventionally employs a support and one or more pendular bodies movable relative to this support, the displacement relative to the support of the pendular bodies being guided by rolling members cooperating with one another. on the other hand with rolling tracks integral with the support, and secondly with integral rolling tracks of the pendular bodies. Each pendulum body comprises for example two pendular masses riveted together. Axial shocks may occur between the pendular bodies and the support or between the rolling members and the pendular bodies. These shocks can cause premature wear of the above-mentioned elements of the damping device and / or generate undesired noises, especially when these elements are made of metal. In order to avoid the occurrence of such shocks, it is known, for example, from application DE 2006 068 556 to arrange the shoes axially between the support and the pendular masses of a pendulum body. These pads are subjected to large forces which make them fragile and tend to damage them. There is a need to benefit from a device for damping torsional oscillations having axial pads more adapted to the stresses exerted on them. The invention aims to meet this need and it achieves this, in one of its aspects, with the aid of a device for damping torsional oscillations, comprising: a support able to move in rotation about an axis, - at least one pendular body comprising: a first and a second pendular masses axially spaced relative to one another and movable relative to the support, the first pendulum mass being disposed axially of a first side of the support and the second pendulum mass being disposed axially of a second side of the support, and at least one connecting member of the first and second pendulum masses matching said masses, - at least one rolling member cooperating d on the one hand with a rolling track defined by the support and on the other hand with at least one rolling track defined by the pendulum body to guide the displacement of the pendular body relative to the support, and - at least one the interposition piece, arranged in such a way as to avoid contact in the axial direction between one of said pendular masses and at least one of the rolling member and the support, the interposition piece comprising: an interposition portion configured to prevent said coming into contact in the axial direction, and - at least one attachment portion on one of the pendulum masses or on one of the rolling member and the support, the portion of fixing comprising at least two fixing lugs and a reinforcement connecting these two tabs. The invention also relates to the interposition piece above considered in isolation. Due to the presence of the reinforcement, the fastening tabs of the fastening portion have a better resistance to the shear forces applied to the latter when the pendulum moves relative to the support. The life of the interposition piece, also called "pad" can be extended. The interposition piece is in particular made of a damping material, such as plastic or rubber. The connecting member secures together the first and the second pendulum mass, so that the pendular body forms a single integral assembly. For the purposes of the present application: - "axially" means "parallel to the axis of rotation of the support", - "radially" means "along an axis belonging to a plane orthogonal to the axis of rotation of the support and intersecting this axis of rotation of the support ", -" angularly "or" circumferentially "means" around the axis of rotation of the support ", and -" integral "means" rigidly coupled ". The attachment portion may extend between an incipient end from the interposition portion and a free end, each attachment tab extending between these ends. The fastening lugs can thus exclusively belong to the fixing portion. The reinforcement may extend over a length of between 5% and 65%, in particular between 10% and 50%, in particular between 10% and 30%, of the length of each fixing lug, this length being measured between the two ends. of the bracket. The reinforcement can connect the tabs at their incipient end from the interposition portion. In this case, the reinforcement may be a flange extending from the interposition portion. The reinforcement can then be used to properly position the interposition piece on the element that carries it, in particular to center the interposition piece on the element that carries it. Alternatively, the reinforcement may be disposed at a distance from the interposition portion, being for example arranged at mid-length of the fixing lugs or near their free end. The reinforcement can be made in one piece with the brackets. The fixing portion can then be made in one piece. Alternatively, the reinforcement is made of a material different from that used for the fixing lugs. The reinforcement can then be overmolded on the fastening tabs.
    [0002] Each fixing lug may comprise a hook for snapping the interposition piece onto one of the pendular masses or on one of the support and the rolling member. In a specific embodiment of the invention, the fixing portion comprises at least three tabs and the reinforcement connects these three tabs in pairs. The three legs may succeed one another when moving around an axis, this axis being in particular parallel to the axis of rotation of the support. The reinforcement can then extend over 360 ° around this axis. Alternatively, all the tabs can be connected two by two by the reinforcement without the reinforcement extends 360 ° about the axis. The reinforcement may have a constant or variable length.
    [0003] The interposition piece may have another fastening portion on one of the pendular masses or on one of the support and the rolling member and this other fastening portion may also have fastening lugs interconnected by a reinforcement. The number of fastening lugs of this other fixing portion may be less than the number of fastening lugs of the attachment portion mentioned above. This other fastening portion comprises for example only two tabs similar to those described above and the reinforcement can then extend only about 180 ° around the axis along which this other part of the part of the fastener extends globally. interposition. In all of the foregoing, the interposition piece may be arranged to prevent contact in the axial direction between said pendular mass and the support.
    [0004] The interposition portion extends for example also axially facing a fraction of the support, so as to prevent this coming into contact, at least when the device is in the rest position. According to one embodiment of the invention, the raceway defined by the pendulum body is defined by the connecting member. Such a connecting member is also called "rolling spacer", serving both to secure the pendulum masses of a pair between them and to participate in guiding the displacement of the pendular body relative to the support. The connecting member can then be received in a window formed in the support, and a portion of the edge of this window can form the raceway defined by the support.
    [0005] Two connecting members can then be provided to match the first and second pendulum masses, and these connecting members can each be arranged in a clean window formed in the support. Each connecting member may define a running track cooperating with a single rolling member.
    [0006] According to this embodiment, there are planes orthogonal to the axis of rotation intersecting both a raceway defined by the pendulum body and a raceway defined by the support. According to another embodiment of the invention, the pendulum body defines two raceways, a raceway being defined in the first pendulum mass and a raceway being defined in the second pendulum mass. The first and second pendulum masses have for example a cavity receiving the rolling member and a portion of the edge of this cavity forms the corresponding raceway. According to this other embodiment, the portion of the rolling member disposed axially between the first and the second pendulum mass is received in a cavity of the support, this cavity being distinct from the window in which the connecting member is received. The rolling member may then comprise successively: a portion disposed in a cavity of the first pendulum mass and cooperating with the raceway formed by a portion of the edge of this cavity, a portion disposed in a cavity of the support and cooperating with the raceway formed by a portion of the edge of this cavity, and - a portion disposed in a cavity of the second pendulum mass and cooperating with the raceway formed by a portion of the edge of this cavity. According to this other embodiment, there may be no plane orthogonal to the axis of rotation of the support which intersects both a raceway defined by the support and a raceway defined by the pendulum body. In all of the above, the interposition piece can be carried by the support or by the rolling member. Alternatively, in all of the above, the interposer can be carried by one of the first and second pendulum mass.
    [0007] When the interposition piece is carried by one of the pendular masses, the interposition portion of the interposition piece may comprise a housing cooperating with an axial end of the rolling member during all or part of the displacement of the rolling member along the raceway defined by the pendulum body. In addition to reducing or even avoiding axial shocks mentioned above, such an interposition piece then cooperates with the rolling member during its displacement to guide this movement. This cooperation of the axial end of the rolling member with the housing can promote a retention of the rolling member against the raceway defined by the pendulum body. Always when the interposition piece is carried by one of the pendular masses, the interposition portion of the interposition piece can be disposed axially between said pendulum mass and the rolling member and this interposition portion can present a surface chosen to prevent the coming into contact in the axial direction between the running member and said pendulum mass for several different positions of the rolling member along the raceway defined by the pendulum body. Such an interposing piece thus ensures a non-zero axial gap between the rolling member and one of the pendulum masses during at least a part of the displacement of the rolling member along the rolling track defined by the body. pendulum, especially during the entire movement of the rolling member along the raceway defined by the pendulum body. If necessary, one of the pendulum masses carries several interposition pieces and only some of them have a housing as mentioned above and / or an interposition piece whose surface is chosen as mentioned above. . The first pendulum mass may carry at least one interposition piece, as described above, arranged in such a way as to avoid contact in the axial direction between this first pendulum mass and at least one of the bearing and the support, and the second pendulum mass may carry at least one interposition piece, as described above, arranged to avoid contact in the axial direction between the second pendulum mass and one to less of the running gear and the support. In all of the foregoing: - the torsion oscillation damping device has a rest position in which the pendulum body is subjected to a centrifugal force but not to acyclisms, - the torsion oscillation damping device has a stop position of the pendulum body against the support, at the end of a movement in the trigonometric direction of the pendular body relative to the support from the rest position, and - the torsion oscillation damping device present a stop position of the pendulum body against the support, after a displacement in the non-trigonometric direction of the pendular body relative to the support from the rest position. Each connecting member may carry at least one abutment damping member for damping the impacts associated with the contacts existing between the connecting member and the support for at least one of the rest position and the stop positions above. The abutment damping member may be a strip or a coating extending along a part of the outline of the connecting member, as disclosed, for example, in DE 201 217 958. Alternatively, abutment damping member may be as disclosed in the application filed in France on October 14, 2014 under number 14 59836. In all the foregoing, the pendulum body may include: - two connecting members angularly offset and secured between they two pendulum masses of a pair, and - two abutment damping members, each abutment damping member being associated with a connecting member. Two windows angularly speaking consecutive support can then be associated with the same pendulum body, each window receiving one of the connecting members, the associated abutment damping member, and a running member. In all the foregoing, the device may comprise: at least one first pendular body for filtering a first order value of the torsional oscillations, and at least one second pendular body for filtering a second order value of the torsional oscillations, different from the first order value. For the purposes of the present application, an order value of the torsional oscillations is filtered when the amplitude at this order value of the torsional oscillations is reduced by the device by a value equal to at least 10% of the amplitude before filtering. Since the device is configured to filter orders, the frequency of the torsional oscillations filtered by the first, respectively second, pendular bodies varies as a function of the speed of rotation of the support. The use of the term "order" implies dealing with variable frequencies. In all the foregoing, each running member is for example a roll of circular section in said plane orthogonal to the axis of rotation of the support. The axial ends of the roll may be devoid of a thin annular flange. The roller is for example made of steel.
    [0008] In all of the above, the shape of the rolling tracks may be such that the pendulum bodies are only displaced relative to the support in translation about a fictitious axis parallel to the axis of rotation of the support. As a variant, the shape of the rolling tracks may be such that the pendular bodies are displaced with respect to the support both: in translation around a notional axis parallel to the axis of rotation of the support and also in rotation around the center of gravity of said pendulum body, such a movement being again called "combined movement" and disclosed for example in the application DE 10 2011 086 532.
    [0009] In all the above, each running member can be solicited solely in compression between the raceway defined by the support and the raceway defined by the pendulum body. In all of the above, the support may or may not be made in one piece. The device comprises for example several pendular bodies, for example a number between two and eight, including three or six pendulous bodies. The pendular bodies can then succeed each other around the axis of rotation of the support. All these pendular bodies can be received in the same axial space. Another subject of the invention, according to another of its aspects, is a component for a transmission system of a motor vehicle, the component being in particular a double damping flywheel, a hydrodynamic torque converter or a friction disk, comprising a device damping torsional oscillations as defined above. The support of the torsion oscillation damping device can then be one of: - a web of the component, - a guide washer of the component, - a phasing washer of the component, or - a separate support of said web, said guide ring and said phasing washer. The invention will be better understood on reading the following description of nonlimiting examples of implementation thereof and on examining the appended drawing in which: FIG. 1 schematically represents a device torsion damping to which interposition pieces according to the invention can be integrated; FIG. 2 represents a detail of the device of FIG. 1 to which interposition pieces according to an embodiment of the invention are integrated, the device being at rest, - Figure 3 shows a detail of Figure 2, - Figure 4 is a view similar to Figure 2, the device being this time in abutment position against the support at the end a displacement from the rest position, - Figure 5 shows a detail of Figure 4, - Figure 6 is a sectional view along VI-VI of Figure 2, - Figure 7 shows isolated parts Interposing visible on the f FIG. 8 is a sectional view, in a plane containing the axis of rotation of the device, of the interposition piece when it is carried by one of the pendulum masses of the pendulum body of the device, and FIG. 9 is a partial view of another example of a device for damping torsional oscillations in which interposition pieces according to the invention can be integrated. FIG. 1 shows a damping device 1 to which one or more interposition pieces according to the invention can be integrated. These pieces of interposition are still called "skates". The damping device 1 is of the pendulum oscillator type. The device 1 is particularly suitable for equipping a motor vehicle transmission system, for example being integrated with a not shown component of such a transmission system, this component being for example a double damping flywheel, a hydrodynamic torque converter or a friction disc. This component can be part of a propulsion system of a motor vehicle, the latter comprising a thermal engine including three or four cylinders. In Figures 1 to 3, the device 1 is at rest. As known, such a component may comprise a torsion damper having at least one input member, at least one output member, and circumferentially acting elastic return members which are interposed between said input and output elements. exit. For the purposes of the present application, the terms "input" and "output" are defined with respect to the direction of torque transmission from the engine of the vehicle to the wheels of the latter. The device 1 comprises in the example under consideration: a support 2 able to move in rotation around an axis X, and a plurality of pendular bodies 3 movable relative to the support 2. In the example under consideration, three Pendulum bodies 3 are provided, being evenly distributed around the periphery of the axis X. The support 2 of the damping device 1 may consist of: an input element of the torsion damper; an output element or an intermediate phasing element disposed between two series of spring of the damper, or an element connected in rotation to one of the aforementioned elements and distinct from the latter, then being for example a support specific to the device 1.
    [0010] The support 2 is in particular a guide washer or a phasing washer. In the example considered, the support 2 generally has a ring shape having two opposite sides 4 which are here planar faces. As can be seen in particular in FIG. 1, each pendulum body 3 comprises in the example under consideration: two pendulum masses 5, each pendulum mass 5 extending axially facing one side 4 of the support 2, and two connecting members 6 solidarisant the two pendulum masses 5. The connecting members 6, also called "spacers", are in the example considered angularly offset. Each connecting member 6 extends in part in a window 9 formed in the support. In the example considered, the window 9 defines a void space inside the support, this window being delimited by a closed contour 10. The device 1 further comprises in the example considered rolling members 11 guiding the displacement of the bodies The rolling elements 11 are here rollers of which at least one portion has a circular cross section of radius R. In the example described, the movement relative to the support 2 of each pendulum body 3 is guided by two rolling members 11, each of them cooperating with one of the connecting members 6 of the pendulum body 3. Each rolling member 11 cooperates on the one hand with a rolling track 12 defined by the support 2, and which is here formed by a portion of the contour 10 of the window 9, and secondly with a rolling track 13 defined by the pendulum body 3, and which is here formed by a portion of the outer contour of the o liaison body 6.
    [0011] More specifically, each rolling member 11 interacts radially internally with the rolling track 13 and at the radially outer level with the rolling track 12 during its movement relative to the support 2 and the pendulum body 3, being for example only requested in compression between the rolling tracks 12 and 13. As shown for example in Figure 3, the raceways 12 and 13 have in the example described radially facing portions of one another. In the examples considered, the device 1 comprises stop damping members 25. Each connecting member 6 carries for example a stop damping member 25. These stop damping members 25 may, as shown in FIG. 1, be as described in the application filed in France on October 14, 2014 under number 14 59836. Alternatively, these abutment damping members 25 may be in the form of a surrounding coating in a plane orthogonal to the rotation axis a portion of the periphery of the connecting member 6, as shown in Figures 2 to 5. Such a stop damping member 25 may have axial rods 27 whose ends are received in one of the pendulum masses 5, so as to secure this abutment damping member 25 with the pendular masses of a pendulum body 3. These abutment damping members 25 allow to dampen the impacts associated with the abutment c the support 2 of the pendulum body 3 at the end of a displacement from the rest position, regardless of the direction of this displacement. Such displacement occurs in planes orthogonal to the axis of rotation X, and not axially. The abutment damping members 25 may furthermore make it possible to damp the shocks associated with the radial drop of the pendulum body 3 for low speeds of rotation of the engine of the vehicle, for example during the starting or stopping of the vehicle . The device 1 comprises interposing parts 30 and 31 which will now be described. Each interposition piece 30 or 31 is in particular made of a damping material, such as plastic or rubber. In the example considered, the interposing parts 30 and 31 are carried by a pendulum mass 5, and each pendulum mass 5 of a pendulum body 3 carries interposition pieces 30 and 31. Each interposition piece 30 or 31 is in the example considered arranged to avoid contact in the axial direction, that is to say along the X axis, between the pendulum mass 5 which carries it and the support 2. Each piece of interposition 30 or 31 comprises, as shown more clearly in Figures 7 and 8: - an interposition portion 33 configured to prevent this coming into contact along the X axis, and - at least one fixing portion 34 on the mass This fastening portion 34 comprises in the examples considered three fastening tabs 36 which extend generally about a Y axis parallel to the X axis, between an end 39 originating at the interposition portion. 33 and a free end 40 perm The free end 40 forms in the example considered a snap hook of the fastening tab 36 on the pendulum mass 5.
    [0012] In the examples considered, a cut-out 42 is formed in the interposition portion 33 radially opposite each fastening tab 36 and radially outside this tab 36 from the Y axis. Still in the examples considered, a reinforcement 45 connects the brackets 36 two by two. The reinforcement is, in the examples described, arranged all around the Y axis and is formed by a flange extending along a fraction of the fastening tabs 36 from the interposition portion 33. The reinforcement 45 presents here a constant length all around the Y axis. The reinforcement 45 can confer on the interposition pieces 30 or 31 a better resistance to the shear forces applying to the latter during the displacement of the pendulum body 3 with respect to the support 2 In addition, as can be seen in particular in FIG. 8, the reinforcement 45 can make it possible to center the interposition piece 30 or 31 in the hole formed in the pendulum mass 5 to receive the fixing portion 34. 2 and 4, a pendulum mass 5 carries for example only one interposition piece 30, and the latter may be disposed on the pendulum mass 5 substantially mid-way between the angular ends of the hung mass 5. The position of this interposition piece 30 can be chosen so that the latter is always at least partly axially facing the support 2, so as to prevent axial shocks between the support 2 and the pendulum mass 5. In In the example considered, each interposition piece 30 and each interposition piece 31 has two attachment portions 34. The interposition pieces 31 will now be described. They differ from the interposition pieces 30 by their number on the same pendulum mass 5, by the shape of their interposition portion 33 and by the fact that they can cooperate with an axial end 51 of an associated rolling member 11 to the pendulum body 3. It can be seen in FIG. 6 that the two fastening portions 34 of the same interposition piece 31 are different. One of the fixing portions 34, which is the most radially outer, is similar to that described above. The other fixing portion 34, which is the most radially inner, here has only two fixing lugs 36 and is formed directly radially opposite the raceway 13 defined by the connecting member 6.
    [0013] Each interposition piece 31 is in the example considered associated with a connecting member 6 of the pendulum body 3 and has an interposition portion 33 arranged axially between the pendulum mass 5 which carries it and the rolling member 11. The surface of this interposition portion 33 is here sufficient to prevent the contact in the axial direction between the rolling member 11 and the pendulum mass 5 for all positions of the rolling member 11 along the track rolling member 13 defined by the connecting member 6. Thus, the pendulum body 3 is: - in a rest position, when the vibration oscillation damping device 1 is at rest, which is represented on the FIGS. 2 and 3, in an abutment position against the support 2 at the end of the displacement of the pendulum body 3 from the rest position, which is represented in FIGS. 4 and 5, or in any intermediate position between these po the portion 33 of the interposer piece comes between the rolling member 11 and said pendulum mass 5 to prevent the X-axis coming into contact between these parts 11 and 5. As shown in FIGS. , the interposition portion 33 has for example, in the plane of the figures a surface whose outer contour is substantially elliptical. The interposition portion 33 extends for example radially outwardly relative to the raceway 13 defined by the connecting member 6, and a portion of the outer contour of this interposition portion 33 may be directly opposite any this portion of the outer contour of the interposition portion 33 has for example the same shape as the shape of the raceway 13. The interposition portion 31 which has just been described may also have surface allowing it to come permanently interpose axially between the support 2 and the pendulum 5 which carries it. As can be seen in Figures 2, 4 and 6, each interposition portion 33 may further comprise a housing 50 cooperating with an axial end 51 of the rolling member 11 during movement of the rolling member 11 along the rolling track 13 defined by the connecting member 6. Each axial end 51 of the rolling member 11 defines for example a pin of radius r, smaller than the radius R of the rest of the rolling member 11 , and this pin 51 slides in the housing 50 during the displacement of the rolling member 11 along the raceway 13 defined by the connecting member 6. In the example, the housing 50 is through, it extends between two angular ends 54 and is radially delimited by a radially inner edge 55 and a radially outer edge 56.
    [0014] As can be seen in Figures 4 and 5, when the pendulum body 3 abuts against the support 2, the pin 51 can then be in abutment against one of the angular ends 54 of the housing 50. The interposing parts 31 can still be others. The interposition portion 33 may have a surface allowing it to interpose axially between the rolling member 11 and the pendulum mass 5 carrying this interposition piece in only certain positions of the rolling member 11 along the rolling track 13 defined by the connecting member 6. The rolling track 13 has a length measured along said track between the location of the track with which the rolling member 11 cooperates when the device 1 is at rest and the location of said track with which the rolling member 11 cooperates when the pendulum body 3 is in an abutment position at the end of its displacement from its rest position. The surface of the interposition portion 33 of the interposition piece 31 may make it possible to come into contact along the X axis only when the rolling member 11 moves along a fraction of the track 13 of the length of which is equal to 50%, for example, the length of the raceway 13.
    [0015] The housing 50 can cooperate with the pin 51 only during a part of the displacement of the rolling member 11 along the rolling track 13 defined by the connecting member 6. We will now describe with reference to the Figure 9 another device 1 to which interposing parts 30 and / or 31 as described above can be integrated. This second example differs from that described with reference to Figures 1 to 8 in that the pendulum body 3 and the support 2 have a different structure. The window 9 is here open radially outward, the contour 10 does not define a closed line. The two pendulous masses 5 are in the example of FIG. 9 connected via a plurality of rivets 60 which are received in a guide piece 62. This guide piece 62 has, as can be seen in FIG. 8, angular edges 64 whose shape can cooperate with that of the contour 10 of the opening 9 to form a stop for the displacement of the pendulum body 3 with respect to the support 2. In this example, cavities 66 distinct from the window 9 are formed in the support 2 and are substantially axially facing other cavities 70 formed in the pendulum masses 5. Each rolling member 11 is both received in a cavity 66 and in a cavity 70, so as to guide the displacement of the pendulum body 3 relative to 2. The invention is not limited to the examples which have just been described.
    权利要求:
    Claims (14)
    [0001]
    REVENDICATIONS1. Device (1) for damping torsional oscillations, comprising: - a support (2) able to move in rotation about an axis (X), - at least one pendulum body (3) comprising: a first and a second pendular mass (5) axially spaced relative to each other and movable relative to the support (2), the first pendulum mass (5) being arranged axially on a first side (4) of the support (2 ) and the second pendulum mass (5) being disposed axially of a second side (4) of the support (2), and at least one connecting member (6) of the first and second pendulum masses (5) matching said masses, - at least one running gear (11) cooperating on the one hand with a raceway (12) defined by the support (2) and on the other hand with at least one raceway (13) defined by the pendulum body (3) for guiding the displacement of the pendulum body (3) relative to the support (2), and - at least one interposition piece (30, 31), arranged in such a way as to avoid contacting in the axial direction (X) between one of said pendulum masses (5) and at least one of the rolling member (11) and the support (2), the interposer (30, 31) comprising: - an interposition portion (33) configured to prevent said contacting in the axial direction (X), and - at least one attachment portion (34) ) on one of the pendulum masses (5) or on one of the rolling member (11) and the support (2), the fixing portion (34) comprising at least two fixing lugs (36) and a reinforcement (45) connecting these two tabs (36).
    [0002]
    2. Device according to claim 1, the fixing portion (34) extending between an end (39) emerging from the interposition portion (33) and a free end (40), each fixing lug (36) s extending between these ends (39, 40).
    [0003]
    3. Device according to claim 2, the reinforcement (45) extending over a length of between 5% and 65%, in particular between 10% and 50%, of the length measured between its two ends (39, 40) of each fixing lug (36).
    [0004]
    4. Device according to claim 2 or 3, the reinforcement (45) connecting the tabs (36) at their end (39) emerging from the interposition portion (33).
    [0005]
    5. Device according to claim 4, the reinforcement (45) being a flange extending from the interposition portion (33).
    [0006]
    6. Device according to any one of claims 1 to 5, each fixing lug (36) comprising a hook for latching the interposition piece (30, 31) on one of the pendulum masses (5) or on one of the support (2) and the rolling member (11).
    [0007]
    7. Device according to any one of the preceding claims, the fixing portion (34) comprising at least three tabs (36) and the reinforcement (45) connecting these three tabs (36) in pairs.
    [0008]
    8. Device according to any one of the preceding claims, the raceway (13) defined by the pendulum body (3) being defined by the connecting member (6).
    [0009]
    9. Device according to any one of the preceding claims, the interposition piece (30, 31) being carried by one of the first and the second pendulum mass (5).
    [0010]
    10. Device according to claim 9, the interposition portion (33) of the interposer (31) comprising a housing (50) cooperating with an axial end (51) of the rolling member (11) during all or part of the displacement of the rolling member (11) along the rolling track (13) defined by the pendulum body (2).
    [0011]
    11. Device according to claim 9 or 10, the interposition portion (33) of the interposition piece (31) being arranged axially between said pendulum mass (5) and the rolling member (11) and this portion of interposition (31) having a surface selected to prevent contacting in the axial direction (X) between the rolling member (11) and said pendulum mass (5) for a plurality of different positions of the rolling member (11); ) along the rolling track (13) defined by the pendulum body (3).
    [0012]
    12. Device according to any one of claims 9 to 11, the first pendulum mass (5) carrying at least one interposition piece (30, 31) arranged to avoid contact in the axial direction (X) between this first pendulum mass (5) and at least one of the rolling member (11) and the support (2), and the second pendulum mass (5) carrying at least one interposition piece (30, 31). ) arranged in such a way as to avoid contacting in the axial direction (X) between this second pendulum mass (5) and at least one of the rolling member (11) and the support (2).
    [0013]
    13. Component for a transmission system of a motor vehicle, the component being in particular a double damping flywheel, a hydrodynamic torque converter or a friction disk, comprising a damping device (1) according to any one of the claims. 1 to 12.
    [0014]
    14. Component according to claim 13, the support (2) of the device being one of: - a web of the component, - a guide washer of the component, - a phasing washer of the component, or - a separate support of said sail, said guide washer and said phasing washer
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    EP3380750B1|2019-07-24|Pendulum damping device
    EP3207278B1|2019-04-10|Device for damping torsional oscillations
    EP3128204B1|2017-12-13|Device for damping torsional oscillations
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    FR3046649A1|2017-07-14|PENDULAR DAMPING DEVICE
    FR3070737B1|2019-08-23|PENDULUM DAMPING DEVICE
    FR3043157A1|2017-05-05|TORSION OSCILLATION DAMPING DEVICE
    FR3050500A1|2017-10-27|PENDULAR DAMPING DEVICE
    FR3029254A1|2016-06-03|TORSION OSCILLATION DAMPING DEVICE
    FR3029253A1|2016-06-03|TORSION OSCILLATION DAMPING DEVICE
    FR3050499A1|2017-10-27|PENDULAR DAMPING DEVICE
    EP3115639B1|2018-03-07|Device for damping torsional oscillations
    EP3207279B1|2019-06-12|Device for damping torsional oscillations
    EP3163118B1|2018-03-21|Device for damping torsional oscillations
    FR3088397A1|2020-05-15|PENDULUM DAMPING DEVICE
    FR3033860B1|2019-11-22|TORSION OSCILLATION DAMPING DEVICE
    FR3021080A1|2015-11-20|TORSION OSCILLATION DAMPING DEVICE
    FR3052514A1|2017-12-15|FRICTION DISC FOR CLUTCH WITH PENDULAR DAMPING DEVICE
    FR3032764A1|2016-08-19|TORSION OSCILLATION DAMPING DEVICE
    FR3048271A1|2017-09-01|PENDULAR DAMPING DEVICE
    同族专利:
    公开号 | 公开日
    EP3026295A1|2016-06-01|
    EP3026295B1|2017-02-01|
    HUE033192T2|2017-11-28|
    CN105650200B|2020-04-07|
    FR3029252B1|2016-12-09|
    US20160153521A1|2016-06-02|
    CN105650200A|2016-06-08|
    US20180180136A1|2018-06-28|
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    法律状态:
    2015-11-30| PLFP| Fee payment|Year of fee payment: 2 |
    2016-06-03| PLSC| Search report ready|Effective date: 20160603 |
    2016-11-30| PLFP| Fee payment|Year of fee payment: 3 |
    2017-11-30| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1461664A|FR3029252B1|2014-11-28|2014-11-28|TORSION OSCILLATION DAMPING DEVICE|FR1461664A| FR3029252B1|2014-11-28|2014-11-28|TORSION OSCILLATION DAMPING DEVICE|
    EP15189234.6A| EP3026295B1|2014-11-28|2015-10-09|Device for damping torsional oscillations|
    HUE15189234A| HUE033192T2|2014-11-28|2015-10-09|Device for damping torsional oscillations|
    CN201510794347.2A| CN105650200B|2014-11-28|2015-11-18|Torsional oscillation damping device|
    US14/950,935| US20160153521A1|2014-11-28|2015-11-24|Device for damping torsional oscillations|
    US15/932,207| US20180180136A1|2014-11-28|2018-02-16|Clutch friction disc|
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