Method for mounting a pendulum damping device

Abstract

Method for mounting a pendulum damping device (1) comprising at least one pendulum mass (3) which is movably mounted on a support (2), wherein the mass (3) comprises two parts (3a, 3b) which are arranged on both sides of the support (2) and are connected to each other by at least one crossbar (17) which passes through an opening (12) of the support (2), wherein a roller (15) is arranged between the crossbar (17) and the edge of the opening (12), characterized in that the method comprises the following steps: a) Pressing a first end (17a) of the crossbar (17) into an opening (26) of the first part (3a), b) Positioning the support (2) such that the crossbar (17) penetrates the corresponding opening (12) of the support (2), c) Positioning the roller (15) between the crossbar (17) and the edge of the opening (12) of the support (2), d) Pressing a second end (17b) of the crossbar (17) into an opening (26) of a second part (3b) of the mass (3), wherein the ends (17a, 17b) of the crossbar (17) are pressed in such a way that they lie flush against the outer surfaces (19) of the parts (3a, 3b) of the mass (3), i.e. the surfaces opposite the support (2).

Description

[0001] The invention relates to a method for assembling a pendulum damping device.

[0002] Such a device, also called a pendulum oscillator or pendulum, is particularly intended for use in the drive train of a motor vehicle.

[0003] In a motor vehicle drivetrain, at least one torsional damping system is generally assigned to a clutch that is suitable for selectively connecting the engine to the transmission.

[0004] An internal combustion engine exhibits rotational irregularities due to the explosions that take place successively in the cylinders of the engine, with these rotational irregularities varying particularly depending on the number of cylinders.

[0005] The damping system conventionally comprises springs and friction elements whose function is to filter out vibrations caused by the rotational irregularities of the engine and which are used before the drive torque is transmitted to the transmission. This prevents such vibrations from entering the transmission and causing unwanted shocks, noise, and disturbances.

[0006] To further improve the filtering, it is known to use a pendulum damping device in addition to the usual damping device.

[0007] Patent application FR 2 981 714 A1, filed on behalf of the applicant, discloses a pendulum damping device comprising an annular support designed to be driven to rotate about its axis and pendulum masses mounted on the outer periphery of the support.

[0008] Each mass performs a pendulum motion during operation and comprises two parts mounted axially on either side of the beam and connected by two crossbars, each passing through an opening in the beam. A roller is mounted between a track recessed in each crossbar and the edge of the corresponding opening in the beam.

[0009] In response to rotational irregularities or non-uniformities, each mass shifts such that its center of mass oscillates like a pendulum. The oscillation frequency of each mass is proportional to the rotational speed of the drive shaft, with the corresponding multiple potentially taking on a value close to the harmonic rank that is responsible for the vibrations causing the strong rotational irregularities near idle.

[0010] The cross braces are attached to the two parts of the mass by rivets. The rivet heads rest on the radially outer surfaces of the mass parts, i.e., on the surfaces opposite the annular support, and thus project axially beyond the mass parts. The volume swept through during operation is relatively large, which is why it is necessary to dimension the surrounding parts accordingly.

[0011] The load-bearing cross-section of the rivet is generally smaller than the total cross-section of the part to be joined, and therefore smaller than that of the pressed-in cross member. The cross member's shape is simpler and therefore easier to manufacture.

[0012] DE 10 2009 042 812 A1 shows a similar pendulum damping device.

[0013] The object of the invention is to eliminate this disadvantage, and for this purpose a method for mounting a pendulum damping device with the features of claim 1 is proposed.

[0014] The firm insertion of each end of the crossbar into an opening in one of the parts of the mass makes it possible to reduce the overall space requirement of the mass.

[0015] It is not necessary for the ends of the crossbar to extend axially outside the openings.

[0016] The ends of the cross brace are inserted in such a way that they lie flush against the outer surfaces of the parts of the mass, i.e. the surfaces opposite the support.

[0017] According to a feature of the invention, at least one of the ends of the crossbar is then welded to the part of the mass.

[0018] According to a feature of the invention, the crossbar is positioned in relation to the first part of the mass and / or in relation to the second part of the mass by means of guide pieces.

[0019] This ensures the correct positioning of both parts, the mass and the cross brace, throughout the entire assembly process.

[0020] In particular, each part of the mass can be guided with respect to a first base by means of at least one first projecting guide element of the first base.

[0021] Furthermore, the first end of the crossbar can be guided in relation to the first base with the help of at least one second projecting guide piece of the first base.

[0022] Furthermore, the second end of the crossbar can be guided in relation to a second base with the aid of at least a third projecting guide piece of the second base.

[0023] In this case, the ends of the crossbar can be firmly inserted into the corresponding openings of the parts of the mass by bringing the first and second bases, which respectively rest on the first part and on the second part of the mass, closer together.

[0024] Each base presses down on one of the parts of the mass to ensure that the ends of the crossbar can be inserted into the openings of the parts.

[0025] According to a further feature of the invention, the second guide piece and / or the third guide piece pass through the opening of the corresponding part of the mass during steps (a) and (d).

[0026] Preferably, each part of the mass comprises a radially inner edge and a radially outer edge, wherein the first base comprises three first guide pieces, two of which are arranged in complementary bearings at the radially inner edge of each part of the mass, and one of which is arranged in a complementary bearing at the radially outer edge of each part of the mass, or vice versa.

[0027] Each part of the mass is held in position on the first base with the help of the first guide pieces.

[0028] Furthermore, the crossbar can comprise a radially inner edge and a radially outer edge, wherein the first base or the second base comprises three second guide pieces or three third guide pieces, two of which are arranged in complementary bearings in the region of the radially inner edge of each crossbar, and one of which is arranged in a complementary bearing in the region of the radially outer edge of the crossbar, or vice versa.

[0029] Advantageously, each end of the crossbar has a curved radial inner edge and / or a curved radial outer edge, so that each end bends when firmly inserted into the opening of the first part and / or the second part of the mass.

[0030] Likewise, each part of the mass can include a deformable zone located radially inside the opening used for the firm insertion of the crossbar, the zone deforming when the corresponding end of the crossbar is firmly inserted.

[0031] Finally, the cross brace can be equipped with at least one stop designed to come into contact with the edge of the beam's opening during operation, i.e., during the movement of the masses in relation to the beam.

[0032] The invention also relates to a pendulum damping device with the features of claim 14.

[0033] The ends of the cross brace lie flush against the outer surfaces of the mass components, i.e., the surfaces opposite the support.

[0034] At least one end of the crossbar is attached to the component by welding in addition to being firmly inserted. In this case, the end of the crossbar can be inserted to a depth just sufficient to hold the crossbar in place on the component, and then welded at the point of connection between the crossbar and the component.

[0035] Preferably, the end of the crossbar is inserted in such a way that it lies flush against a surface of the mass which is opposite to another surface of the same mass through which the crossbar is inserted.

[0036] The invention becomes more understandable, and further details, advantages, and features of the invention emerge from the study of the following description, which is given as a non-limiting example and refers to the accompanying drawings, wherein: - Fig. 1 a perspective view of a pendulum damping device according to the invention, - Fig. 2 a front view of part of the device Fig. 1 is, - the Fig. The 3 to 12 views show various successive steps of the procedure for assembling the device. Fig. 1 and Fig. 2 according to the invention, - Fig. Figure 13 shows a front view of one end of a crossbar. The schematic representation shows the deformation of this latter end when it is firmly inserted. - Fig. Figure 14 is a front view that schematically shows the deformation of part of the mass when the crossbar is inserted into the corresponding opening, - the Fig. 15 to 17 front views show the three insertion variants of the crossbar into a part of the mass. - the Fig. 18 and Fig. 19 axial sectional views of a part of a cross member and a mass are shown, illustrating two design variants. - Fig. 20 is a perspective view of a crossbeam which is equipped with fastening devices according to a first design type, - the Fig. 21 and Fig. There are 22 perspective views showing the assembly of the cross brace and the lifting devices. Fig. Represent 20 on the two parts of a mass, - Fig. 23 is a front view of a crossbar which is provided with stop devices according to a second design type, - Fig. 24 a perspective view of the unit from Fig. 23 is, - the Fig. 25 and Fig. There are 26 views, each of which... Fig. 23 or 24 correspond and represent a crossbar which is provided with lifting devices according to a third design type.

[0037] Fig. 1 represents a pendulum damping device 1 according to the invention, comprising an annular support 2 on which the masses 3 are movably mounted.

[0038] The annular support 2 comprises an inner annular part 4, which is connected to an outer annular part 5 by claws 6 that extend radially. The plane of the inner annular part 4 is axially offset from that of the outer annular part 5.

[0039] The cylindrical inner surface of the annular inner part 4 includes an annular groove 7 that opens radially inwards. The annular inner part 4 further includes radial holes 8 that open into the groove 7. Finally, the annular inner part 4 includes flat zones 10 into which the radial holes 9 open. The groove accommodates a retaining ring that serves as an axial and angular stop. Each radial claw 6 includes three holes 11 for the passage of rivets for attachment to a system for driving the main damper springs.

[0040] Moreover, the ring-shaped outer part 5 of the carrier 2 comprises six pairs of openings 12 ( Fig. 4) Each opening 12 has a general shape of an isosceles triangle, the apex of which is rounded, and the base 13 of which is arranged radially inwards. The apex 14, which is arranged opposite to the base 13, is curved and forms a track designed to interact with a roller 15.

[0041] Furthermore, semicircular recesses 16 are provided in the area of ​​the outer periphery of the annular outer part 5. More precisely, each recess 16 is arranged on the circumference between the two openings 12 of the same pair.

[0042] Six masses 3 are mounted on the annular outer part 5 of the support 2. Each mass 3 comprises a first part 3a and a second part 3b, which are arranged axially opposite each other on either side of the support 2. The two parts 3a, 3b are connected by two transverse struts 17.

[0043] Each part 3a, 3b of the mass 3 comprises a radial, so-called inner surface 18 ( Fig. 3), which faces the side of the support 2, and a radial outer surface 19 ( Fig. 1), which is arranged opposite to the radially inner side 18. Furthermore, each part 3a, 3b has a circular arc shape and comprises a curved radially inner circumferential edge 20 and a curved radially outer circumferential edge 21, which are connected to each other by radial side edges 22. The outer circumferential edge 21 comprises a semicircular recess 23, which is located opposite one of the recesses 16 of the outer annular part 5 of the support 2 when the mass 3 is in the Fig. 1 is located in the position shown (mounting position or starting position).

[0044] The inner circumferential edge 20 of each part includes cutouts 24 in the region of its circumferential ends. A recess 25 of semicircular shape is further excluded in the region of each cutout 24.

[0045] Each part 3a, 3b has two openings 26 designed for the assembly of the crossbars 17 by firmly inserting (pressing in) them. Each opening 26 is elongated and comprises a radially inner, entirely straight rim 27 and a radially outer, arcuate rim 28, connected to each other by two straight side rims 29. The connecting zones between the side rims 29 on the one hand and the radially inner rims 27 and outer rims 28 on the other hand are rounded. The radially outer rim 28 has a rounded recess 30 in its central section. The recess 30 also serves to detect the presence of the roller after assembly is complete.

[0046] Each cross member comprises a cross-section of constant length over its entire length. In particular, each cross member comprises an inner circumferential edge 31 and an outer circumferential edge 32, which are curved (see especially Fig. 2) The outer circumferential edge 32 is concave and forms a track for the corresponding roller 15. The inner circumferential edge 31, which is convex, includes two rounded recesses 33 in the region of its circumferential ends. Thus, viewed from the front, each cross member 17 includes two rounded, laterally projecting corners 34 in the region of its outer circumferential edge 32, which are arranged in the two radially outer connecting zones 35 of the corresponding openings 26 (see in particular Figure 1). Fig. 2) The rounded shapes of the projecting corners 34 and the connecting zones 35 are complementary overall. In addition, spaces 36 are formed by the recesses 33 between the crossbar 17 and the edge of the opening 26.

[0047] The assembly of such a pendulum damping device 1 using a tool comprising a first base 37 and a second base 38 is now described. Each base 37, 38 is annular in shape and extends essentially in a radial plane.

[0048] The first base 37 comprises six groups of three first guide pieces 39a, 39b and twelve groups of three second guide pieces 40a, 40b of shorter length than the first pieces 39a, 39b.

[0049] The second base 38 comprises, on the one hand, twelve groups of three third guide pieces 41 a, 41 b. The third pieces 41 a, 41 b have essentially the same length as the two pieces 40 a, 40 b. All guide pieces 39 a, 39 b, 40 a, 40 b, 41 a, 41 b are cylindrical, and their free ends may include chamfers.

[0050] When assembling the pendulum damping device 1, a first step consists of positioning the first parts 3a of the masses 3 on the first base 37 ( Fig. 3) so that the outer surfaces 19 of parts 3a, 3b abut the surface 42 of the first base 17, so that the pieces 39a engage in the recesses 25, and so that the pieces 39b engage in the recesses 23. The first part 3a is thus held in position by the first guide pieces 39a, 39b and can only slide along these latter.

[0051] The first ends 17a of the crossbars 17 are then positioned opposite the openings 26 of the first part 3a. This positioning is facilitated by the fact that the piece 40b engages in the recess 30 and also comes to rest against the outer circumferential edge 32 of the crossbar 17, and by the fact that the pieces 40a engage in the spaces 36 and come to rest against the crossbar 17. The crossbar 17 is thus held in position by the second guide pieces 40a, 40b and can only slide along these latter.

[0052] Then the support 2 is arranged such that one of the radial surfaces of the radially outer annular part 5 abuts the so-called inner radial surfaces 18 of the first parts 3a of the masses 3 ( Fig. 4) In this step, piece 39b engages in the recess 16, and pieces 39a rest on the edges 13 of the openings 12, particularly in the area of ​​rounded tips. The carrier 2 is thus held in position by the first guide pieces 39a, 39b and can only slide along these latter.

[0053] Now the second parts 3b of the masses 3 are arranged opposite the first parts 3a, so that the pieces 39b engage in the recesses 23 of the second parts 3b, and that the pieces 39a engage in the recesses 25 of the second parts 3b ( Fig. 5 and Fig. 6).

[0054] Then the second socket 38 is led opposite the first socket 37 ( Fig. 7) In the Fig. In the embodiment shown in Figures 6 to 12, the second base 38 comprises a first annular plate 38a, from which the third guide pieces 41a, 41b extend, and a second annular plate 38b, which is axially movable relative to the first annular plate 38a. The second annular plate 38b includes holes through which the third guide pieces 41a, 41b pass, and holes intended to be traversed by the first guide pieces 39a, 39b.

[0055] The second base 38 is brought close to the first base 37 until the first guide pieces 39a, 39b pass through the corresponding holes in the second plate 38b. In this position, which is described in Fig. As shown in Figure 8, the ends of the third guide pieces 41a and 41b are inserted into the recesses or spaces 36 of the second parts 3b of the masses 3.

[0056] The third pieces 41 a, 41 b are thus arranged axially opposite the second pieces 40a, 40b and hold the second end 17b of the crossbar in position ( Fig. 8) The lengths of the second pieces 40a, 40b and the third pieces 41a, 41b are adjusted accordingly and in particular make it possible to accommodate the rollers 15 between the ends of pieces 40b and 41b.

[0057] The second plate 38b is now lowered in the manner of a press to bring the two parts 3a, 3b of each mass 3a closer together in order to effect the insertion of the first ends 17a of the crossbars 17 into the openings 26 of the first parts 3a of the masses 3 and the insertion of the second ends 17b of the crossbars 17 into the openings 26 of the second parts 3b of the masses 3 ( Fig. 9) This firm insertion requires the deformation of each end 17a, 17b of the crossbar 17 and / or the deformation of each part 3a, 3b of the mass 6, as better described below with reference to the Fig. 13 and Fig. 14 is described.

[0058] The second plate 38b can now be brought closer to the first plate 38a again ( Fig. 10), then the entirety of the second socket 38 can be removed from the first socket 37 ( Fig. 11 and Fig. 12), in order to release the pendulum damping device 1 thus mounted.

[0059] When firmly inserted, the first and second ends 17a, 17b of each crossbar 17 can deform under the force exerted by the second plate. Fig. Figure 13 shows the cross-section of one end of the crossbar 17 before it is firmly inserted into the corresponding opening 26 (in a dotted line) and after it is firmly inserted into the opening 26 (in a solid line). The deformation is intentionally exaggerated in this figure.

[0060] Furthermore, when firmly inserting the corresponding ends 17a 17b of the cross struts 17, particularly in the zones located between the radially inner edges 27 of the openings 26 and the radially inner edges 20 of the parts 3a, 3b, the parts 3a, 3b may deform. Fig. Figure 14 shows the radially inner edge 27 of an opening 26 before the crossbar 17 is firmly inserted (in a dotted line) and after the crossbar 17 is firmly inserted (in a solid line). The deformation is also intentionally exaggerated in this figure.

[0061] It should be noted that the shapes of the crossbars 17 and the openings 26 are adapted before assembly in such a way that they obtain the desired geometry after assembly, i.e. after deformation by firm insertion.

[0062] As in Fig. As shown in Figure 15, the shapes of the crossbars 17 and the openings 26 can be such that, after being firmly inserted, each end 17a, 17b of the crossbars 17 rests on the radially outer edge 28 of the corresponding opening 26 in the area of ​​the lateral projecting corners 34 of the crossbar 17 and the connecting zones 35 of the opening 26.

[0063] According to another version, which is in Fig. As shown in Figure 16, the shapes of the crossbars 17 and the openings 26 can be such that, after being firmly inserted, each end 17a, 17b of the crossbars 17 rests on the radially outer edge 28 of the corresponding opening 26 in the area of ​​zones that are located between the lateral projecting corners 34 and the central zone of the radially outer edge 32 of the crossbar 17.

[0064] According to another version, which is in Fig. As shown in Figure 17, the shapes of the crossbars 17 and the openings 26 can be such that, after firm insertion, each end 17a, 17b of the crossbars 17 rests on the radially outer edge 28 of the corresponding opening 26 in the region of the central zone of the radially outer edge 32 of the crossbar 17. In this case, the masses 3 have no recesses 30.

[0065] In each of these designs, only the central zones of the radially inner edges 31 of the crossbars 17 rest on the radially inner edges 27 of the openings 26.

[0066] Of course, other versions are also possible.

[0067] Furthermore, as is stated in the Fig. 18 and Fig. As shown in Figure 19, the contour 44 of each opening 26 in the area of ​​the inside 18 may be rounded or chamfered to facilitate the insertion and plugging in of the corresponding end 17a of the crossbar 17.

[0068] Likewise, the contour of the end 17a of the crossbar 17 may also have a chamfer 45 or rounding to facilitate its insertion or insertion into the corresponding opening 26.

[0069] In this way, the respective contact pressure is limited and the formation of a chip or the impairment of masses 3 during the assembly of the pendulum damping device 1 is avoided.

[0070] The Fig. Figures 20 to 22 show an embodiment in which each cross member 17 is provided with two elastomer stops 46. Each stop 46 extends axially and comprises two chamfered cylindrical ends 47 that are inserted into the spaces 36. Each stop 46 further comprises a partially enlarged central zone 48 that extends circumferentially beyond the corresponding projecting corner 34 and the inner edge 31 to abut the edge of the corresponding opening 12 of the support 2.

[0071] It should be noted that the stop 46 does not extend over the entire length of the crossbar 17, so that there are always spaces 36 which extend axially on both sides of each stop 46, which allow the insertion of the ends of the pieces 40a and 41a during the assembly of the device 1.

[0072] The Fig. 23 and Fig. Figure 24 represents a further embodiment in which each cross member 17 includes a stop in the form of an elastomeric band 49 extending from one projecting corner 34 to the other, extending the radially inner side 31 of the cross member 17. The band 49 is located in the axially central zone of the cross member 17 and comprises two curved ends 50 that engage in the recesses 33 with complementary shapes located beneath the projecting corners of the Fig. 23 are arranged. In this design, the elastomer band 49 can be manufactured independently of the cross member 17, then, for example, snapped onto the cross member 17 and / or attached by gluing.

[0073] It should be noted that, as before, the reduced thickness (axial dimension) of the elastomeric strip 49 makes it possible to retain spaces 36 located axially on both sides of the elastomeric strip 49 for inserting the ends of the pieces 40a and 41a during the assembly of the device 1. The pieces 41a have a length greater or lesser than the thickness of the strip, depending on the geometry or the presence of elastomeric stops. Furthermore, the stops can be momentarily deformed by the pieces 41a during assembly without affecting the product.

[0074] The Fig. 25 and Fig. Figure 26 shows yet another embodiment of the invention, which is that of Fig. 23 and Fig.24 is similar, but differs from the latter in that the ends 50 of the band 49 are not curved and snap into the recesses 33. In this embodiment, the elastomer band 49 is preferably formed onto the cross member 17.

[0075] Such stops 46, 49 are designed to reach the installation at the edge of the corresponding opening 12 of the carrier 2 in certain operating conditions, in particular in the event of a stop or start of the engine, in the event of a change in speed and more generally in the event of a jolt in the drive train of the motor vehicle.

[0076] After the crossbars have been firmly inserted, welding can also be carried out at the first ends 17a of the crossbars 17 at the connection to the first part 3a of the mass 3 and at the second ends 17b of the same crossbars. Such welding makes it possible to further improve the fastening of the crossbars 17 to the two parts 3a, 3b of the mass.

[0077] Preferably, the welding can be carried out using a laser. Such welding can be provided for all previously described designs.

Claims

[1] Method for mounting a pendulum damping device (1) comprising at least one pendulum mass (3) which is movably mounted on a support (2), wherein the mass (3) comprises two parts (3a, 3b) which are arranged on either side of the support (2) and are connected to each other by at least one crossbar (17) which passes through an opening (12) of the support (2), wherein a roller (15) is arranged between the crossbar (17) and the edge of the opening (12), characterized by that the procedure includes the following steps: a) Pressing a first end (17a) of the crossbar (17) into an opening (26) of the first part (3a), b) Positioning the support (2) such that the crossbar (17) penetrates the corresponding opening (12) of the support (2), c) Positioning the roller (15) between the crossbar (17) and the edge of the opening (12) of the support (2), d) Pressing a second end (17b) of the crossbar (17) into an opening (26) of a second part (3b) of the mass (3), wherein the ends (17a, 17b) of the crossbar (17) are pressed in such a way that they lie flush against the outer surfaces (19) of the parts (3a, 3b) of the mass (3), i.e. the surfaces opposite the support (2). [2] Method according to claim 1, characterized by , that at least one of the ends (17a, 17b) of the crossbar is then welded to the part (3a, 3b) of the mass. [3] Method according to one of claims 1 and 2, characterized by , that the crossbar (17) is positioned in relation to the first part (3a) of the mass (3) and / or in relation to the second part (3b) of the mass (3) using guide pieces (39, 40, 41). [4] Method according to claim 3, characterized by, that each part (3a, 3b) of the mass (3) is guided relative to a first base (37) by means of at least one first projecting guide piece (39a, 39b) of the first base (37). [5] Method according to claim 3 or 4, characterized by , that the first end (17a) of the crossbar (17) is guided relative to the first base (37) with the aid of at least one second projecting guide piece (40a, 40b) of the first base (37). [6] Method according to any one of claims 3 to 5, characterized by , that the second end (17b) of the crossbar (17) is guided relative to a second base (38) with the aid of at least a third projecting guide piece (41a, 41b) of the second base (38). [7] Method according to claim 6, characterized by, that the ends (17a, 17b) of the crossbar (17) are pressed into the corresponding openings (26) of the parts (3a, 3b) of the mass (3) by bringing the first and second bases (37, 38) which rest on the first part (3a) and on the second part (3b) of the mass (3) close together. [8] Method according to any one of claims 5 to 7, characterized by , that the second guide piece (40a, 40b) and / or the third guide piece (41a, 41b) penetrate the opening of the corresponding part (3a, 3b) of the mass (3) during steps (a) and (d). [9] Method according to any one of claims 3 to 8, characterized by, that each part (3a, 3b) of the mass (3) comprises a radially inner edge (20) and a radially outer edge (21), wherein the first base (37) comprises three first guide pieces (40a, 40b), two of which (40a) are arranged in complementary bearings (25) of the radially inner edge (20) of each part (3a, 3b) of the mass (3), and one of which (40b) is arranged in a complementary bearing (23) of the radially outer edge (21) of each part (3a, 3b) of the mass (3), or vice versa. [10] Method according to claim 4 or 5, characterized by, that the crossbar (17) comprises a radially inner edge (31) and a radially outer edge (32), wherein the first base (37) and the second base (38) respectively comprise three second guide pieces (40a, 40b) and three third guide pieces (41a, 41b), of which two (40a, 41a) are arranged in complementary bearings (33) in the region of the radially inner edge (31) of each crossbar (17), and of which one (40b, 41b) is arranged in a complementary bearing (30) in the region of the radially outer edge (32) of the crossbar (17), or vice versa. [11] Method according to any one of claims 1 to 10, characterized by , that each end (17a, 17b) of the crossbar (17) has a curved radial inner edge (31) and / or a curved radial outer edge (32), such that each end (17a, 17b) bends when pressed into the opening (26) of the first part (3a) and / or the second part (3b) of the mass (3). [12] Method according to any one of claims 1 to 11, characterized by , that each part (3a, 3b) of the mass (3) comprises a deformable zone located radially inside the opening (26) used for pressing in the crossbar (17), the zone deforming when the corresponding end (17a, 17b) of the crossbar (17) is pressed in. [13] Method according to any one of claims 1 to 12, characterized by , that the crossbar (17) is equipped with at least one stop (46, 49) which is designed to come into contact with the system at the edge of the opening (12) of the support (2) during operation. [14] Pendulum damping device (1) comprising at least one pendulum mass (3) movably mounted on a support (2) which is designed to be driven rotationally, wherein the mass (3) comprises two parts (3a, 3b) arranged on either side of the support (2) which are connected to each other by at least one crossbar (17) extending through an opening (12) of the support (2), wherein a roller (15) is arranged between the crossbar (17) and the edge of the opening (12), wherein the ends (17a, 17b) of the crossbar (17) are pressed onto the two parts (3a, 3b) of the mass (3), and wherein the ends (17a, 17b) of the crossbar (17) are flush with the outer surfaces (19) of the parts (3a, 3b) of the mass (3), i.e., with the surfaces opposite the support (2). Areas. [15] Device according to claim 14, characterized by, that at least one of the ends (17a, 17b) of the crossbar (17) is also attached to the part (3a, 3b) of the mass (3) by welding.

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