Damper Device

Abstract

To provide a damper device capable of reducing costs.SOLUTION: A damper device is equipped with a damper unit and a torque limiter unit. The torque limiter unit is disposed on the outer side in a diametrical direction with respect to the damper unit. A first side plate has an inner diameter which is the same as an outer diameter of an output plate. A second side plate has an inner diameter which is the same as an outer diameter of a first input plate. A pressure plate has an inner diameter which is the same as an outer diameter of a second input plate. The first side plate is disposed so as not to oppose its inner peripheral surface to an outer peripheral surface of the output plate. The second side plate is disposed so as not to oppose its inner peripheral surface to an outer peripheral surface of the first input plate. The pressure plate is disposed so as not to oppose its inner peripheral surface to an outer peripheral surface of the second input plate.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a damper device. [Background technology]

[0002] For example, in a hybrid vehicle equipped with an engine and an electric motor, a damper device having a torque limiter function as shown in Patent Document 1 is used to prevent excessive torque from being transmitted from the output side to the engine side when starting the engine, etc.

[0003] The damper device of Patent Document 1 includes a damper unit and a torque limiter disposed radially outside the damper unit. unit The damper unit includes a side plate, a drive plate, and a hub plate. The torque limiter unit includes a cover plate, a friction plate, and a pressure plate. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2011-226572 A Summary of the Invention [Problem to be solved by the invention]

[0005] There is a demand for reducing the cost of a damper device having a damper unit and a torque limiter unit configured as described above.

[0006] An object of the present invention is to provide a damper device that can be manufactured at low cost. [Means for solving the problem]

[0007] A damper device according to a first aspect of the present invention includes a damper unit and a torque limiter unit. The damper unit has an output plate, a first input plate, a second input plate, and an elastic member. The second input plate rotates integrally with the first input plate. The elastic member elastically connects the output plate to the first and second input plates. The torque limiter unit is disposed radially outward with respect to the damper unit. The torque limiter unit has a first side plate, a second side plate, and a pressure plate. The first side plate is annular. The first side plate has an inner diameter equal to an outer diameter of the output plate. The second side plate is annular. The second side plate has an inner diameter equal to an outer diameter of the first input plate. The second side plate rotates integrally with the first side plate. The pressure plate is annular. The pressure plate has an inner diameter equal to an outer diameter of the second input plate. The pressure plate is disposed between the first side plate and the second side plate in the axial direction. The first side plate is disposed so that its inner peripheral surface does not face the outer peripheral surface of the output plate. The second side plate is disposed so that its inner peripheral surface does not face the outer peripheral surface of the first input plate. The pressure plate is disposed so that its inner peripheral surface does not face the outer peripheral surface of the second input plate.

[0008] According to the above-mentioned configuration, the first side plate and the output plate are arranged so that the inner peripheral surface of the first side plate does not face the outer peripheral surface of the output plate. That is, the first side plate and the output plate are arranged so as not to interfere with each other. Therefore, the inner diameter of the first side plate and the outer diameter of the output plate can be made the same. As a result, when the first side plate and the output plate are taken out from one member, no extra part is formed between the first side plate and the output plate in the radial direction. Similarly, when the second side plate and the first input plate are taken out from one member, the extra part can be eliminated. Similarly, when the pressure plate and the second input plate are taken out from one member, the extra part can be eliminated. As described above, the cost of the damper device can be reduced by eliminating the extra part and reducing the material cost.

[0009] Preferably, the inner diameter of the pressure plate is larger than the outer diameter of the output plate. With this configuration, the pressure plate and the output plate can overlap each other when viewed in the radial direction. As a result, the damper device can be made compact in the axial direction.

[0010] Preferably, an inner circumferential surface of the pressure plate faces an outer circumferential surface of the output plate.

[0011] Preferably, the output plate has the same thickness as the first side plate.

[0012] Preferably, the first input plate has the same thickness as the second side plate.

[0013] Preferably, the second input plate has the same plate thickness as the pressure plate.

[0014] A damper device according to a second aspect of the present invention includes a damper unit and a torque limiter unit. The damper unit has an output plate, a first input plate, a second input plate, and an elastic member. The second input plate rotates integrally with the first input plate. The elastic member elastically connects the output plate to the first and second input plates. The torque limiter unit is disposed radially outward with respect to the damper unit. The torque limiter unit has a first side plate, a second side plate, and a pressure plate. The first side plate is annular. The first side plate has an inner diameter that is the same as an outer diameter of the output plate. The second side plate is annular. The second side plate rotates integrally with the first side plate. The pressure plate is annular. The pressure plate is disposed between the first side plate and the second side plate in the axial direction. The first side plate is disposed such that its inner peripheral surface does not face an outer peripheral surface of the output plate.

[0015] According to the above-mentioned configuration, the first side plate and the output plate are arranged so that the inner peripheral surface of the first side plate does not face the outer peripheral surface of the output plate. In other words, the first side plate and the output plate do not interfere with each other. Therefore, the inner diameter of the first side plate and the outer diameter of the output plate can be made the same. As a result, when the first side plate and the output plate are taken out from a single member, no excess part is formed between the first side plate and the output plate in the radial direction. In this way, by eliminating the excess part, the cost of the damper device can be reduced.

[0016] A damper device according to a third aspect of the present invention includes a damper unit and a torque limiter unit. The damper unit has an output plate, a first input plate, a second input plate, and an elastic member. The second input plate rotates integrally with the first input plate. The elastic member elastically connects the output plate to the first and second input plates. The torque limiter unit is disposed radially outward with respect to the damper unit. The torque limiter unit has a first side plate, a second side plate, and a pressure plate. The first side plate is annular. The second side plate is annular. The second side plate has an inner diameter that is the same as the outer diameter of the first input plate. The second side plate rotates integrally with the first side plate. The pressure plate is annular. The pressure plate is disposed between the first side plate and the second side plate in the axial direction. The second side plate is disposed such that its inner peripheral surface does not face the outer peripheral surface of the first input plate.

[0017] According to the above-mentioned configuration, the second side plate and the first input plate are arranged so that the inner peripheral surface of the second side plate does not face the outer peripheral surface of the first input plate. In other words, the second side plate and the first input plate do not interfere with each other. Therefore, the inner diameter of the second side plate and the outer diameter of the first input plate can be made the same. As a result, when the second side plate and the first input plate are taken out from a single member, no extra portion is formed between the second side plate and the first input plate in the radial direction. In this way, by eliminating the extra portion, the cost of the damper device can be reduced.

[0018] A damper device according to a fourth aspect of the present invention includes a damper unit and a torque limiter unit. The damper unit has an output plate, a first input plate, a second input plate, and an elastic member. The second input plate rotates integrally with the first input plate. The elastic member elastically connects the output plate to the first and second input plates. The torque limiter unit is disposed radially outward with respect to the damper unit. The torque limiter unit has a first side plate, a second side plate, and a pressure plate. The first side plate is annular. The second side plate is annular. The second side plate rotates integrally with the first side plate. The pressure plate is annular. The pressure plate has an inner diameter that is the same as an outer diameter of the second input plate. The pressure plate is disposed between the first side plate and the second side plate in the axial direction. The pressure plate is disposed such that its inner peripheral surface does not face an outer peripheral surface of the second input plate.

[0019] According to the above-mentioned configuration, the pressure plate and the second input plate are arranged so that the inner peripheral surface of the pressure plate does not face the outer peripheral surface of the second input plate. That is, the pressure plate and the second input plate do not interfere with each other. Therefore, the inner diameter of the pressure plate and the outer diameter of the second input plate can be made the same. As a result, when the pressure plate and the second input plate are taken out from a single member, no extra portion is formed between the pressure plate and the second input plate in the radial direction. In this way, by eliminating the extra portion, the cost of the damper device can be reduced. Effect of the Invention

[0020] According to the present invention, it is possible to provide a damper device that can reduce costs. [Brief description of the drawings]

[0021] [Figure 1] FIG. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. 4 is a front view of a plate on which a flange plate and a first side plate are formed. [Diagram 5] FIG. 4 is a cross-sectional view of one plate on which a flange plate and a first side plate are formed. [Figure 6] FIG. 4 is a front view of a single plate on which a first input plate and a second side plate are formed. [Figure 7] FIG. 4 is a cross-sectional view of one plate on which a first input plate and a second side plate are formed. [Figure 8] FIG. 4 is a front view of one plate on which a second input plate and a pressure plate are formed. [Figure 9] FIG. 4 is a cross-sectional view of one plate on which a second input plate and a pressure plate are formed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] [Overall configuration] Fig. 1 is a cross-sectional view of a damper device 100 according to this embodiment. Fig. 2 is a front view of the damper device 100 with some members removed or omitted. In Fig. 1, line OO is the rotation axis of the damper device 100. In Fig. 1, an engine is disposed on the right side of the damper device 100, and a drive unit including an electric motor, a transmission, etc. is disposed on the left side.

[0023] In the following description, the axial direction is the direction in which the rotation axis O of the damper device 100 extends. The circumferential direction is the circumferential direction of a circle centered on the rotation axis O, and the radial direction is the radial direction of the circle centered on the rotation axis O. The circumferential direction does not have to completely coincide with the circumferential direction of the circle centered on the rotation axis O, and the radial direction does not have to completely coincide with the diameter direction of the circle centered on the rotation axis O.

[0024] 1 and 2, the damper device 100 is provided between a flywheel (not shown) and an input shaft of a drive unit. The damper device 100 is configured to limit the torque transmitted between the engine and the drive unit and to damp rotation fluctuations. The damper device 100 includes a damper unit 2 and a torque limiter unit 5.

[0025] [Damper unit 2] The damper unit 2 has a first input plate 21, a second input plate 22, a hub flange 23, and a plurality of elastic members 24. The damper unit 2 also has a hysteresis generating mechanism 25. The damper unit 2 is configured to damp rotation fluctuations.

[0026] <First and second input plates> The first input plate 21 and the second input plate 22 are both annular members having a center hole. The first input plate 21 has a larger outer diameter than the second input plate 22. The outer peripheral end of the first input plate 21 is sandwiched between the first side plate 51 and the pressure plate 53. In detail, the outer peripheral end of the first input plate 21 is sandwiched between a first friction material 55a fixed to the first side plate 51 and a second friction material 55b fixed to the pressure plate 53.

[0027] The first input plate 21 and the second input plate 22 are disposed at an interval from each other in the axial direction. The first input plate 21 and the second input plate 22 are fixed to each other by a plurality of stop pins 26. Therefore, the first input plate 21 and the second input plate 22 rotate integrally with each other. Furthermore, the first input plate 21 and the second input plate 22 are immovable relative to each other in the axial direction.

[0028] The first input plate 21 has a plurality of first window portions 211 and a plurality of second window portions 212. In this embodiment, the first input plate 21 has a pair of the first window portions 211 and a pair of the second window portions 212.

[0029] The pair of first window portions 211 are arranged such that the phase difference between them is 180 degrees centered on the rotation axis O. That is, the pair of first window portions 211 are arranged at positions that are point symmetrical with respect to the rotation axis O. The first window portion 211 is formed by cutting and raising the first input plate 21. Therefore, the first window portion 211 has support portions on its outer peripheral edge portion and inner peripheral edge portion, respectively. The first window portion 211 has pressing surfaces 213 on both end surfaces in the circumferential direction.

[0030] The pair of second window portions 212 are arranged such that the phase difference between them is 180 degrees around the rotation axis O. That is, the pair of second window portions 212 are arranged at positions that are point symmetrical around the rotation axis O. Also, the second window portion 212 is arranged such that the phase difference between the second window portion 212 and the first window portion is 90 degrees around the rotation axis O. The second window portion 212 is a rectangular opening that penetrates in the axial direction. The second window portion 212 has pressing surfaces 214 on both end faces in the circumferential direction. Also, the second window portion 212 has support portions on its outer peripheral edge portion and inner peripheral edge portion, respectively.

[0031] The second input plate 22 has a plurality of third window portions 221 and a plurality of fourth window portions 222. In this embodiment, the second input plate 22 has a pair of third window portions 221 and a pair of fourth window portions 222. The third window portions 221 have a similar configuration to the first window portion 211, and the fourth window portions 222 have a similar configuration to the second window portion 212.

[0032] The third window portion 221 is disposed at a position overlapping with the first window portion 211 when viewed in the axial direction. Moreover, the fourth window portion 222 is disposed at a position overlapping with the second window portion 212 when viewed in the axial direction.

[0033] <Hub flange 23> The hub flange 23 is configured to transmit torque from the first and second input plates 21, 22 to an output device. The hub flange 23 has a hub 27 and a flange plate 28 (an example of an output plate). As shown in Fig. 2, the hub 27 and the flange plate 28 are integrated by a plurality of teeth and a plurality of recesses with which the teeth mesh.

[0034] The hub 27 is a cylindrical member, and is disposed within the central holes of the first input plate 21 and the second input plate 22. A spline hole extending in the axial direction is formed on the inner periphery of the hub 27. An output side member can be spline-engaged with this spline hole.

[0035] The flange plate 28 is disposed between the first input plate 21 and the second input plate 22 in the axial direction.

[0036] Fig. 3 is a front view of the flange plate 28. As shown in Fig. 2 and Fig. 3, the flange plate 28 is formed in a disk shape. The flange plate 28 has a central hole, a pair of first accommodating holes 281, a pair of second accommodating holes 282, a pair of first stopper holes 283a, and a pair of second stopper holes 283b.

[0037] The pair of first accommodating holes 281 are arranged such that the phase difference between them is 180 degrees centered on the rotation axis O. That is, the pair of first accommodating holes 281 are arranged at positions that are point symmetrical with respect to the rotation axis O. The first accommodating holes 281 are arranged at positions that overlap with the first window portion 211 and the third window portion 221 when viewed in the axial direction. The first accommodating hole 281 has pressing surfaces 284 on both end surfaces in the circumferential direction.

[0038] The first accommodating hole 281 has a protrusion 285 on the pressing surface 284 on the R1 side. The protrusion 285 is formed in the radial center of the pressing surface 284. The protrusion 285 protrudes so as to bulge toward the pressing surface 284 on the R2 side.

[0039] The pair of second accommodating holes 282 are arranged such that the phase difference between them is 180 degrees centered on the rotation axis O. That is, the pair of second accommodating holes 282 are arranged at positions that are point symmetrical about the rotation axis O. The second accommodating holes 282 are arranged at positions that overlap with the second window portion 212 and the fourth window portion 222 when viewed in the axial direction.

[0040] The second accommodating hole 282 is formed in an arc shape. The second accommodating hole 282 is disposed radially inward from the first accommodating hole 281. The second accommodating hole 282 has pressing surfaces 286 on both end surfaces in the circumferential direction. The distance between the pressing surfaces 286 is set to be longer than the distance between the pressing surfaces 214 of the second window portion 212 of the first input plate 21.

[0041] The first stopper hole 283a is disposed on the R1 side in the circumferential direction with respect to the first accommodating hole 281. The first stopper hole 283a is an elongated hole extending in an arc shape. The R1 side end of the first stopper hole 283a is disposed radially outside the second accommodating hole 282. The R2 side end of the first stopper hole 283a extends toward the protruding portion 285 of the first accommodating hole 281. Specifically, the R2 side end of the first stopper hole 283a reaches a straight line L. Here, the straight line L is a straight line connecting the pressing surfaces 284 on which the protruding portion 285 of the first accommodating hole 281 is not formed.

[0042] The second stopper hole 283b is disposed on the R2 side in the circumferential direction with respect to the first accommodating hole 281. The second stopper hole 283b is an elongated hole extending in an arc shape. The R2 side end of the second stopper hole 283b is disposed radially outside the second accommodating hole 282. The R1 side end of the second stopper hole 283b communicates with the first accommodating hole 281.

[0043] A stop pin 26 passes through the first and second stopper holes 283a, 283b in the axial direction. Therefore, the first and second input plates 21, 22 and the flange plate 28 can rotate relative to each other within a range in which the stop pin 26 can move within the first and second stopper holes 283a, 283b. In other words, a stopper mechanism is formed by the stop pin 26 and the first and second stopper holes 283a, 283b, and the first and second input plates 21, 22 and the hub flange 23 are prevented from rotating relative to each other by the stop pin 26 abutting against the end faces of the first and second stopper holes 283a, 283b.

[0044] <Elastic material> 1 and 2, the elastic member 24 is configured to elastically connect in the rotational direction the first and second input plates 21, 22 and the flange plate 28. The elastic member 24 is, for example, a coil spring.

[0045] The elastic member 24 is accommodated in the first accommodation hole 281 of the flange plate 28. The elastic member 24 is accommodated in the first window portion 211 of the first input plate 21, and is also accommodated in the third window portion 221 of the second input plate 22. The elastic member 24 is supported in the axial and radial directions by support portions of the first window portion 211 and the third window portion 221.

[0046] The elastic member 24 is supported by each pressing surface via a spring seat 30. The spring seats 30 are disposed at both circumferential ends of the first accommodating hole 281 of the flange plate 28. The spring seats 30 support the end faces of the elastic member 24. The spring seats 30 also support the ends of the elastic member 24 from the radially outer side.

[0047] <Resin materials> The resin member 31 is accommodated in the second accommodating hole 282 of the flange plate 28. In addition, the resin member 31 is supported by the supporting portions of the windows 212, 222 of the first input plate 21 and the second input plate 22.

[0048] The resin member 31 is disposed with no gap in the circumferential direction with respect to each of the window portions 212, 222 of the first and second input plates 21, 22. On the other hand, the resin member 31 is shorter than the circumferential length of the second accommodating hole 282 of the flange plate .

[0049] [Torque limiter unit 5] The torque limiter unit 5 is disposed radially outward relative to the damper unit 2. The torque limiter unit 5 is configured to limit the torque transmitted between the flywheel and the damper unit 2.

[0050] The torque limiter unit 5 includes a first side plate 51, a second side plate 52, a pressure plate 53, a cone spring 54, a first friction material 55a, and a second friction material 55b.

[0051] <First side plate> The first side plate 51 is annular. The first side plate 51 has an outer circumferential portion 511 and an inner circumferential portion 512. The first side plate 51 receives a biasing force from a cone spring 54 at the inner circumferential portion 512.

[0052] A first friction material 55a is fixed to an inner peripheral portion 512 of the first side plate 51. The first friction material 55a is disposed between the first side plate 51 and the first input plate 21 in the axial direction. The first friction material 55a is frictionally engaged with the first input plate 21. When a torque equal to or greater than a predetermined value is input, the first friction material 55a slides against the first input plate, and the first side plate 51 and the first input plate 21 rotate relative to each other. The first friction material 55a may be fixed to the first input plate 21 and frictionally engaged with the first side plate 51.

[0053] The first side plate 51 is disposed so that its inner peripheral surface does not face the outer peripheral surface of the flange plate 28. Therefore, the first side plate 51 and the flange plate 28 do not interfere with each other. Note that the inner peripheral surface is a surface that faces inward in the radial direction, and the outer peripheral surface is a surface that faces outward in the radial direction.

[0054] The inner diameter of the first side plate 51 is the same as the outer diameter of the flange plate 28. The plate thickness of the first side plate 51 is the same as the plate thickness of the flange plate 28. Therefore, as shown in Figs. 4 and 5, the first side plate 51 and the flange plate 28 can be taken out from a single plate. Furthermore, since there is no gap between the first side plate 51 and the flange plate 28 in the radial direction, and no unnecessary portion is created, costs can be reduced. Figs. 4 and 5 are a front view and a cross-sectional view of the first side plate 51 and the flange plate 28 in a connected state.

[0055] <Second side plate> 1, the second side plate 52 is fixed to the first side plate 51 by a rivet 101 or the like. Therefore, the second side plate 52 and the first side plate 51 rotate together.

[0056] The second side plate 52 is annular. The second side plate 52 is disposed so that its inner peripheral surface does not face the outer peripheral surface of the first input plate 21. Therefore, the second side plate 52 and the first input plate 21 do not interfere with each other.

[0057] The outer diameter of the second side plate 52 is approximately the same as the outer diameter of the first side plate 51. The inner diameter of the second side plate 52 is larger than the inner diameter of the first side plate 51. An outer circumferential portion 521 of the second side plate 52 is in contact with an outer circumferential portion 511 of the first side plate 51. On the other hand, an inner circumferential portion 522 of the second side plate 52 is disposed with a gap between it and the first side plate 51 in the axial direction. The plate thickness of the second side plate 52 is thinner than the plate thickness of the first side plate 51.

[0058] The inner diameter of the second side plate 52 is the same as the outer diameter of the first input plate 21. The plate thickness of the second side plate 52 is the same as the plate thickness of the first input plate 21. Therefore, as shown in Figs. 6 and 7, the second side plate 52 and the first input plate 21 can be taken out from a single plate. Furthermore, since there is no gap between the second side plate 52 and the first input plate 21 in the radial direction and no unnecessary portion is created, costs can be reduced. Figs. 6 and 7 are a front view and a cross-sectional view of the second side plate 52 and the first input plate 21 in a connected state.

[0059] <Pressure plate> As shown in FIG. 1, the pressure plate 53 is annular. The pressure plate 53 is disposed between the first side plate 51 and the second side plate 52 in the axial direction. A second friction material 55b is fixed to the pressure plate 53. The second friction material 55b is disposed between the pressure plate 53 and the first input plate 21 in the axial direction. The second friction material 55b is frictionally engaged with the first input plate 21. When a torque equal to or greater than a predetermined value is input, the second friction material 55b slides against the first input plate 21, and the pressure plate 53 and the first input plate 21 rotate relative to each other. The second friction material 55b may be fixed to the first input plate 21 and frictionally engaged with the pressure plate 53.

[0060] The pressure plate 53 is disposed so that its inner peripheral surface does not face the outer peripheral surface of the second input plate 22. Therefore, the pressure plate 53 and the second input plate 22 do not interfere with each other.

[0061] The pressure plate 53 is annular. The outer diameter of the pressure plate 53 is smaller than the outer diameter of the first side plate 51. The inner diameter of the pressure plate 53 is larger than the inner diameter of the first side plate 51. The inner diameter of the pressure plate 53 is smaller than the inner diameter of the second side plate 52. The plate thickness of the pressure plate 53 is thinner than the plate thickness of the first side plate 51.

[0062] The inner diameter of the pressure plate 53 is the same as the outer diameter of the second input plate 22. The plate thickness of the pressure plate 53 is the same as the plate thickness of the second input plate 22. Therefore, as shown in Figs. 8 and 9, the pressure plate 53 and the second input plate 22 can be taken out from a single plate. Furthermore, since there is no gap between the pressure plate 53 and the second input plate 22 in the radial direction and no unnecessary portion is created, costs can be reduced. Figs. 8 and 9 are a front view and a cross-sectional view of the pressure plate 53 and the second input plate 22 in a connected state.

[0063] 1, when viewed in the radial direction, the pressure plate 53 and the flange plate 28 at least partially overlap each other. The inner circumferential surface of the pressure plate 53 faces the outer circumferential surface of the flange plate 28. The inner diameter of the pressure plate 53 is larger than the outer diameter of the flange plate 28. For this reason, a gap is formed between the inner circumferential surface of the pressure plate 53 and the outer circumferential surface of the flange plate 28 in the radial direction.

[0064] The cone spring 54 is disposed between the second side plate 52 and the pressure plate 53 in the axial direction. The cone spring 54 biases the pressure plate 53 toward the first side plate 51. The cone spring 54 presses the second friction material 55b toward the first input plate 21 via the pressure plate 53.

[0065] An outer circumferential end of the cone spring 54 abuts against the inner circumferential portion 522 of the second side plate 52. An inner circumferential end of the cone spring 54 abuts against the pressure plate 53.

[0066] [Operation] Torque transmitted from the engine to the flywheel is input to the damper unit 2 via the torque limiter unit 5. In the damper unit 2, the torque is input to the first and second input plates 21, 22, and this torque is transmitted to the hub flange 23 via the elastic member 24 and the resin member 31. Power is then transmitted from the hub flange 23 to the electric motor, generator, transmission, etc. on the output side.

[0067] Also, for example, when starting the engine, the inertia of the output side is large, so that excessive torque may be transmitted from the output side to the engine. In such a case, the torque limiter unit 5 limits the torque transmitted to the engine side to a predetermined value or less.

[0068] [Variations] The present invention is not limited to the above-described embodiments, and various modifications and alterations are possible without departing from the scope of the present invention.

[0069] (a) In the above embodiment, the first side plate 51 and the flange plate 28 are extracted from a single plate, the second side plate 52 and the first input plate 21 are extracted from a single plate, and the pressure plate 53 and the second input plate 22 are extracted from a single plate, but the configuration of the damper device 100 is not limited to this. Only one of the above three pairs may be extracted from a single plate.

[0070] (b) In the above embodiment, the hub flange 23 is made up of two members, the hub 27 and the flange plate 28, but it may be made up of a single member.

[0071] (c) In the above embodiment, the spring seats are provided at both ends of the coil spring, but the spring seats may be omitted. Furthermore, the spring seat may be provided only at one end of the coil spring. [Explanation of symbols]

[0072] 2: Damper unit 21: First input plate 22: Second input plate 28: Flange plate 5: Torque limiter unit 51: First side plate 52: Second side plate 53: Pressure plate 100: Damper device

Claims

1. a damper unit including an output plate, a first input plate, a second input plate rotating integrally with the first input plate, and an elastic member elastically connecting the output plate to the first and second input plates; a torque limiter unit disposed radially outward of the damper unit; Equipped with The torque limiter unit is a first annular side plate having an inner diameter equal to an outer diameter of the output plate; a second annular side plate having an inner diameter equal to an outer diameter of the first input plate and rotating integrally with the first side plate; an annular pressure plate having an inner diameter equal to an outer diameter of the second input plate and disposed axially between the first side plate and the second side plate; having the first side plate is disposed so that an inner peripheral surface thereof does not face an outer peripheral surface of the output plate, the second side plate is disposed so that an inner peripheral surface thereof does not face an outer peripheral surface of the first input plate, the pressure plate is disposed so that an inner peripheral surface thereof does not face an outer peripheral surface of the second input plate. Damper device.

2. The inner diameter of the pressure plate is larger than the outer diameter of the output plate. The damper device according to claim 1 .

3. An inner peripheral surface of the pressure plate faces an outer peripheral surface of the output plate. The damper device according to claim 2 .

4. The output plate has the same plate thickness as the first side plate. The damper device according to any one of claims 1 to 3.

5. The first input plate has the same plate thickness as the second side plate. The damper device according to any one of claims 1 to 4.

6. The second input plate has the same plate thickness as the pressure plate. The damper device according to any one of claims 1 to 5.

7. a damper unit including an output plate, a first input plate, a second input plate rotating integrally with the first input plate, and an elastic member elastically connecting the output plate to the first and second input plates; a torque limiter unit disposed radially outward of the damper unit; Equipped with The torque limiter unit is a first annular side plate having an inner diameter equal to an outer diameter of the output plate; an annular second side plate that rotates integrally with the first side plate; an annular pressure plate disposed between the first side plate and the second side plate in the axial direction; having the first side plate is disposed so that an inner peripheral surface thereof does not face an outer peripheral surface of the output plate. Damper device.

8. a damper unit including an output plate, a first input plate, a second input plate rotating integrally with the first input plate, and an elastic member elastically connecting the output plate to the first and second input plates; a torque limiter unit disposed radially outward of the damper unit; Equipped with The torque limiter unit is an annular first side plate; a second annular side plate having an inner diameter equal to an outer diameter of the first input plate and rotating integrally with the first side plate; an annular pressure plate disposed between the first side plate and the second side plate in the axial direction; having the second side plate is disposed so that an inner peripheral surface thereof does not face an outer peripheral surface of the first input plate. Damper device.

9. a damper unit including an output plate, a first input plate, a second input plate rotating integrally with the first input plate, and an elastic member elastically connecting the output plate to the first and second input plates; a torque limiter unit disposed radially outward of the damper unit; Equipped with The torque limiter unit comprises: an annular first side plate; an annular second side plate that rotates integrally with the first side plate; an annular pressure plate having an inner diameter equal to an outer diameter of the second input plate and disposed axially between the first side plate and the second side plate; having the pressure plate is disposed so that an inner peripheral surface thereof does not face an outer peripheral surface of the second input plate. Damper device.

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