JP5609820B2 - Damper device - Google Patents

Description

  The present invention relates to a damper device including a centrifugal pendulum type vibration absorber that attenuates vibration by swinging a plurality of mass bodies.

  Conventionally, as this type of damper device, an input element to which power from a prime mover is transmitted, a plurality of first elastic bodies to which power is transmitted from the input elements, and an intermediate element to which power is transmitted from the first elastic body And a plurality of second elastic bodies to which power is transmitted from the intermediate element and an output element to which power is transmitted from the second elastic body have been proposed (for example, see Patent Document 1). The intermediate element of the damper device includes a first plate having an engagement portion that engages with an end portion of the first elastic body, and is connected to the first plate via a rivet and is engaged with the end portion of the second elastic body. And a second plate having mating engagement portions. And the 1st plate of an intermediate element hold | maintains a 1st elastic body so that it may be located in the outer peripheral side of a turbine runner. The second plate of the intermediate element holds the second elastic body together with the first plate, and positions the plurality of mass bodies on the side (front cover side) of the first elastic body and on the outer periphery of the second elastic body. The centrifugal pendulum type vibration absorber is configured together with the plurality of mass bodies.

International Publication No. 2010/000220

  If the intermediate element is also used as a support member for the mass body of the centrifugal pendulum vibration absorber as in the above-described damper device, a support member dedicated to the centrifugal pendulum vibration absorber is not required. However, in the conventional damper device, in order to engage the first elastic body held by the first plate of the intermediate element and the input element, it is necessary to arrange the input element so as to straddle the second plate of the intermediate element. The input element is composed of a plurality of members connected via rivets on the inner peripheral side of the mass body of the centrifugal pendulum vibration absorber. For this reason, in the conventional damper device, the swing range of the plurality of mass bodies supported by the second plate is limited by the rivets connecting the constituent members of the input element, and the vibration damping effect by the centrifugal pendulum vibration absorber In order to ensure sufficient, it becomes necessary to enlarge the damper device.

  Accordingly, the main object of the present invention is to suppress an increase in the size of the damper device while ensuring a swing range of the mass body of the centrifugal pendulum vibration absorber.

  The damper device of the present invention employs the following means in order to achieve the main object described above.

The damper device of the present invention is
An input element to which power from the prime mover is transmitted, a plurality of first elastic bodies to which power is transmitted from the input elements, an intermediate element to which power is transmitted from the first elastic body, and power from the intermediate elements In a damper device comprising: a plurality of second elastic bodies to be transmitted; an output element to which power is transmitted from the second elastic bodies; and a centrifugal pendulum type vibration absorber that attenuates vibrations by swinging the plurality of mass bodies.
The plurality of first elastic bodies are held by the input element, and the plurality of second elastic bodies are held by the output element,
The intermediate element extends toward the first elastic body and a plurality of first engaging portions that engage with the corresponding first elastic bodies, and extends toward the second elastic body. Including a single plate member having a plurality of second engaging portions engaged with the corresponding second elastic bodies, and supporting the plurality of mass bodies in a swingable manner together with the plurality of mass bodies The centrifugal pendulum type vibration absorber is configured.

  In this damper device, the plurality of first elastic bodies are held by the input element, and the plurality of second elastic bodies are held by the output element. The intermediate element extends toward the first elastic body and is engaged with the corresponding first elastic body, and extends toward the second elastic body and corresponds to the first elastic body. Including a single plate member having a plurality of second engaging portions engaged with the second elastic body, and supporting the plurality of mass bodies in a swingable manner together with the plurality of mass bodies to provide centrifugal pendulum vibration absorption Configure the device. Thus, by holding a plurality of first elastic bodies on the input element, it is not necessary to dispose the input element across the intermediate element in order to engage the first elastic body and the input element. The intermediate element includes a plate member having a first engagement portion extending toward the first elastic body and a second engagement portion extending toward the second elastic body, and the first elastic body is formed from the intermediate element. By omitting the holding function of the second elastic body, the structure of the intermediate element is simplified and the portions other than the first and second engaging portions of the plate member are flattened, so that there is sufficient space around the intermediate element. Can be secured. As a result, even if the intermediate element is also used as a support member that supports a plurality of mass bodies of the centrifugal pendulum type vibration absorber, it is possible to suppress the swing range of the mass body being limited by the input element or the intermediate element. . Therefore, according to the present invention, it is possible to make the damper device compact while securing the swing range of the mass body of the centrifugal pendulum vibration absorber.

  The first and second engaging portions may be formed on the intermediate element so as not to overlap each other when viewed from the radial direction. As a result, the damper device can be made compact while ensuring the strength of the intermediate element.

  Further, each of the plate members may have a plurality of guide holes for swingably guiding the mass body, and one of the first and second engaging portions is an outer periphery between adjacent guide holes. The other of the first and second engaging portions may be formed on the inner peripheral side of the guide hole. Thus, while ensuring the strength of the intermediate member satisfactorily, a sufficient swing range of the mass body is provided between the first or second engaging portion on the outer peripheral side and the first or second engaging portion on the inner peripheral side. Can be secured.

  The plurality of first elastic bodies may be arranged on the outer peripheral side of the plurality of second elastic bodies, and the first engaging portion is formed on the outer peripheral side between the guide holes adjacent to each other. In addition, the second engaging portion may be formed on the inner peripheral side of the guide hole. Accordingly, the first elastic body can be easily held only by the input element, and the second elastic body can be easily held only by the output element, and the entire structure is simplified and the damper device is made more compact. be able to.

  Furthermore, the mass body may have a support shaft that is rotatably disposed in the guide hole of the plate member. Thereby, an intermediate element can consist of only one plate member.

  The intermediate element may further include a second plate member coupled to the plate member and having a plurality of second guide holes facing the guide holes of the plate member, A first protrusion that is rotatably disposed in the guide hole of the plate member; and a second protrusion that is rotatably disposed in the second guide hole of the second plate member. Also good. Thereby, since the mass body can be configured as a single member, the assemblability of the centrifugal pendulum vibration absorber is improved, and even if the intermediate element is configured by the plate member and the second plate member, the number of parts can be increased. The increase can be suppressed.

  Further, the input element may be connected to an input member coupled to the prime mover via a lock-up clutch, and the first and second elastic bodies may be connected to the shaft of the damper device rather than the plurality of mass bodies. It may be arranged on the input member side in the direction. Thereby, since the input element holding the first elastic body can be arranged on the input member side connected to the prime mover, the input element is connected via the rivet on the inner peripheral side of the mass body of the centrifugal pendulum vibration absorber. Since it is not necessary to configure the plurality of members, it is possible to satisfactorily ensure the swing range of the plurality of mass bodies.

It is a block diagram which shows the fluid transmission apparatus 1 provided with the damper apparatus 8 which concerns on the Example of this invention. FIG. 3 is a configuration diagram showing a main part of a damper device 8. 1 is a schematic configuration diagram of a fluid transmission device 1. FIG. It is a block diagram which shows the fluid transmission apparatus 1B provided with the damper apparatus 8B which concerns on a modification. It is a block diagram which shows the principal part of the damper apparatus 8B.

  Next, the form for implementing this invention is demonstrated using an Example.

  FIG. 1 is a configuration diagram illustrating a fluid transmission device 1 including a damper device 8 according to an embodiment of the present invention. A fluid transmission device 1 shown in the figure is a torque converter mounted as a starting device on a vehicle including an engine (internal combustion engine) as a prime mover, and is a front cover (input member) connected to a crankshaft of the engine (not shown). 3, a pump impeller 4 fixed to the front cover 3, a turbine runner 5 that can rotate coaxially with the pump impeller 4, a stator 6 that rectifies the flow of hydraulic oil from the turbine runner 5 to the pump impeller 4, and A damper hub (output member) 7 fixed to an input shaft of a transmission that is an automatic transmission (AT) or a continuously variable transmission (CVT), a damper device 8 connected to the damper hub 7, and a connection to the damper device 8 And a single plate friction type lockup clutch mechanism 9 having a lockup piston 90 formed therein.

  The pump impeller 4 includes a pump shell 40 that is tightly fixed to the front cover 3, and a plurality of pump blades 41 that are disposed on the inner surface of the pump shell 40. The turbine runner 5 includes a turbine shell 50 and a plurality of turbine blades 51 disposed on the inner surface of the turbine shell 50. The pump impeller 4 and the turbine runner 5 face each other, and a stator 6 that can rotate coaxially with the pump impeller 4 and the turbine runner 5 is disposed between the pump impeller 4 and the turbine runner 5. The stator 6 has a plurality of stator blades 60, and the rotation direction of the stator 6 is set in only one direction by the one-way clutch 61. The pump impeller 4, the turbine runner 5, and the stator 6 form a torus (annular flow path) for circulating hydraulic oil.

  The damper device 8 is defined by a drive member 81 that is connected to the front cover 3 by a lock-up clutch mechanism 9 and can be integrated with the front cover 3 in the rotation direction, and a pump shell 40 of the front cover 3 and the pump impeller 4. The drive member 81 is engaged via a driven member (output element) 82 that is disposed in the inner peripheral region inside the housing and is fixed to the damper hub 7 and a plurality of first coil springs (first elastic members) 83. And an annular intermediate member (intermediate element) 85 engaged with the driven member 82 via a plurality of second coil springs (second elastic members) 84.

  The drive member 81 is fixed to the lockup piston 90 of the lockup clutch mechanism 9 via a rivet and is disposed in the outer peripheral side region inside the housing. Further, the drive member 81 has a plurality of spring engaging portions 81 a that engage (contact) with one end of the corresponding first coil spring 83. The driven member 82 includes a first driven plate 821 and a second driven plate 822 having a plurality of spring engaging portions 822a that engage (contact) with one end of the corresponding second coil spring 84, respectively. The second driven plates 821 and 822 are fitted to the damper hub 7 and fixed to the damper hub 7 through rivets.

  The plurality of first coil springs 83 are circumferentially formed by an outer peripheral portion 90a of the lockup piston 90 and a plurality of spring support portions 81b formed on the drive member 81 so as to face the inner peripheral surface of the outer peripheral portion 90a. Each is held slidably at a predetermined interval. That is, the plurality of first coil springs 83 are held by the drive member 81 and the lockup piston 90 that constitute the input element of the damper device 8. The plurality of second coil springs 84 are arranged on the inner peripheral side of the first coil spring 83 so as to overlap with the first coil spring 83 when viewed from the radial direction, and constitute a driven member 82. A spring holding portion 821a formed on the outer periphery of the driven plate 821 is slidably held at a predetermined interval in the circumferential direction.

  Thus, by arranging the first coil spring 83 on the outer peripheral side of the second coil spring 84, the first coil spring 83 can be easily held by the lock-up piston 90 and the drive member 81, and the second coil spring. 84 can be easily held by the driven member 82, and the entire structure can be simplified to make the damper device 8 more compact. However, the first coil spring 83 only needs to be held by a member constituting the input element of the damper device 8. For example, the drive member 81 extends to the outer peripheral side of the first coil spring 83, and only the drive member 81 is used. The first coil spring 83 may be held.

  The intermediate member 85 of the damper device 8 is configured as a single (one) annular plate member, and is disposed between the turbine runner 5 and the first and second coil springs 83 and 84 in the axial direction of the damper device 8. At the same time, the damper hub 7 is rotatably fitted. A plurality of intermediate members 85 extend in the axial direction of the damper device 8 toward the first coil spring 83 and engage (abut) with the other ends of the corresponding first coil springs 83 (in the embodiment). (See FIG. 2) three first engaging portions 85a and the second coil springs 84 are extended in the axial direction of the damper device 8 and engaged with the corresponding other ends of the second coil springs 84 (see FIG. 2). And a plurality of second engaging portions 85b (six in the embodiment, see FIG. 2). Further, in the embodiment, the turbine shell 50 of the turbine runner 5 is fixed to the inner peripheral portion of the intermediate member 85 with respect to the second engagement portion 85b via a rivet.

  The lockup clutch mechanism 9 is capable of executing lockup for connecting the front cover 3 and the damper hub 7 via the damper device 8 and releasing the lockup. As shown in FIG. 1, the lockup piston 90 of the lockup clutch mechanism 9 is disposed inside the front cover 3 and in the vicinity of the inner wall surface on the engine side (right side in the drawing) of the front cover 3, with respect to the damper hub 7. It is slidably and rotatably fitted in the axial direction. A friction material 91 is attached to the outer peripheral side of the lockup piston 90 and the surface on the front cover 3 side. And between the back surface (the surface on the right side in the figure) of the lockup piston 90 and the front cover 3, it is connected to a hydraulic control device (not shown) via a hydraulic oil supply hole (not shown) and an oil passage formed in the input shaft. A lock-up chamber 95 is defined.

  When power is transmitted between the pump impeller 4 and the turbine runner 5 without performing lock-up by the lock-up clutch mechanism 9, the hydraulic oil supplied to the pump impeller 4 and the turbine runner 5 is supplied to the lock-up chamber 95. The lockup chamber 95 is filled with hydraulic oil. Accordingly, at this time, the lock-up piston 90 does not move to the front cover 3 side, and the lock-up piston 90 does not frictionally engage with the front cover 3. If the pressure in the lockup chamber 95 is reduced by a hydraulic control device (not shown), the lockup piston 90 moves toward the front cover 3 due to the pressure difference and frictionally engages with the front cover 3. As a result, the front cover 3 is connected to the damper hub 7 via the damper device 8, whereby the power from the engine is transmitted to the input shaft of the transmission via the front cover 3, the damper device 8 and the damper hub 7. Become. If the decompression in the lock-up chamber 95 is stopped, the lock-up piston 90 is separated from the front cover 3 due to a decrease in the pressure difference accompanying the inflow of hydraulic oil into the lock-up chamber 95, thereby releasing the lock-up. Will be.

  In the fluid transmission device 1 configured as described above, if the lockup is executed when the rotation speed of the engine connected to the front cover 3 reaches a very low lockup rotation speed Nlup of about 1000 rpm, for example, The power transmission efficiency with the transmission can be improved, thereby improving the fuel efficiency of the engine. Therefore, the fluid transmission device 1 according to the embodiment is generated between the front cover 3 and the damper hub 7 when the rotational speed (engine rotational speed) of the front cover 3 is in the vicinity of the lockup rotational speed Nlup set to be extremely low. In order to satisfactorily dampen the vibrations that occur, a centrifugal pendulum vibration absorber 20 that attenuates vibrations by swinging the mass bodies 22 is provided.

  As shown in FIGS. 1 and 2, in the embodiment, the centrifugal pendulum vibration absorber 20 includes a plurality of mass bodies 22, and each of the plurality of mass bodies 22 is connected to the turbine runner 5 in the axial direction of the damper device 8. The intermediate member 85 is supported so as to be swingable so as to be positioned between the coil spring 83. As shown in the figure, the intermediate member 85 of the damper device 8 is formed with a plurality of guide holes 85c which are arc-shaped long holes at equal intervals. Further, the mass body 22 of the embodiment is disposed in the guide hole 85c so as to roll on the two metal plates 221 formed in a disk shape and the inner peripheral surface of the guide hole 85c of the intermediate member 85. The disk-shaped support shaft 23 disposed between the two metal plates 221 and the fastening member 24 that fastens the two metal plates 221 and the support shaft 23 together. As a result, the mass body 22 swings with respect to the intermediate member 85 as the support shaft 23 rolls on the inner peripheral surface of the guide hole 85 c as the intermediate member 85 of the damper device 8 rotates. Then, the intermediate member 85 of the damper device 8 is also used as a support member for supporting the plurality of mass bodies 22 of the centrifugal pendulum vibration absorber 20, thereby suppressing an increase in the number of components and the entire fluid transmission device 1. Can be made more compact.

  As shown in FIG. 2, the first engaging portion 85a of the intermediate member 85 is formed on the outer peripheral side between the adjacent guide holes 85c, and the second engaging portion 85b is formed on the guide hole 85c. It is formed on the inner circumference side. That is, the first and second engaging portions 85a and 85b are formed on the intermediate member 85 so as not to overlap each other when viewed from the radial direction. Thereby, while ensuring the strength of the intermediate member 85 satisfactorily, the rocking range of the mass body 22 is sufficiently secured between the first engaging portion 85a on the outer peripheral side and the second engaging portion 85b on the inner peripheral side. In addition, the damper device 8 can be made more compact by suppressing the enlargement of the intermediate member 85. The first and second engaging portions 85a and 85b may be arranged such that the respective centers in the circumferential direction are not located on the same diameter, and the respective end portions are slightly overlapped when viewed from the radial direction. The intermediate member 85 may be formed.

  Next, the operation of the above-described fluid transmission device 1 will be described with reference to FIG.

  As can be seen from FIG. 3, when the lockup is released when the front cover 3 and the damper hub 7 are not connected to each other by the lockup clutch mechanism 9 via the damper device 8, the power from the engine as the prime mover is converted from the front cover 3, The turbine runner 5, the intermediate member 85 of the damper device 8, the second coil spring 84, the driven member 82, and the damper hub 7 are transmitted to the input shaft of the transmission.

    On the other hand, at the time of lockup in which the front cover 3 and the damper hub 7 are connected by the lockup clutch mechanism 9 via the damper device 8, the power from the engine as the prime mover is applied to the front cover 3 and the lock as shown in FIG. The transmission is transmitted to the input shaft of the transmission (not shown) via the path of the up clutch mechanism 9, the drive member 81, the first coil spring 83, the intermediate member 85, the second coil spring 84, the driven member 82, and the damper hub 7.

  At this time, fluctuations in torque input to the front cover 3 are mainly absorbed by the first and second coil springs 83 and 84 of the damper device 8. In the fluid transmission device 1 of the embodiment, when the damper device 8 connected to the front cover 3 by the lock-up piston 90 rotates together with the front cover 3 along with the lock-up, the intermediate member 85 of the damper device 8 rotates. The spindle 23 of each mass body 22 constituting the centrifugal pendulum type vibration absorber 20 is guided by the guide hole 85c of the intermediate member 85 and rolls between one end and the other end of the guide hole 85c. The body 22 swings with respect to the intermediate member 85. Thus, the vibration transmitted from the centrifugal pendulum vibration absorber 20 to the front cover 3 by applying vibration having a phase opposite to the vibration of the intermediate member 85 to the intermediate member 85 is transmitted to the centrifugal pendulum vibration absorber 20. Can also be absorbed (attenuated). Further, in the fluid transmission device 1 according to the embodiment, the turbine runner 5 is connected to the intermediate member 85 of the damper device 8, so that the turbine runner 5 constitutes a so-called double turbine damper. Therefore, at the time of lock-up, it is possible to satisfactorily absorb the vibration of the intermediate member 85 and the vibration of the entire damper device 8 even by the double turbine damper constituted by the turbine runner 5.

  Therefore, in the fluid transmission device 1 of the embodiment, the size (particularly the length in the radial direction) and weight of the mass body 22 that defines the vibration damping characteristics of the centrifugal pendulum vibration absorber 20, the shape and dimensions of the guide hole 85c, the double turbine damper By adjusting the weight (inertia) of the turbine runner 5 that defines the vibration damping characteristics (resonance frequency) of the engine based on the number of cylinders of the engine as the prime mover and the lockup rotation speed Nloop at which the lockup is executed, Even if the lockup is executed when the engine speed is very low, for example, 1000 rpm, the vibration transmitted from the engine as the prime mover to the fluid transmission device 1, that is, the front cover 3, is transmitted to the double turbine damper and the centrifugal pendulum type. The vibration absorbing device 20 effectively absorbs (attenuates) the vibration, and the vibration is absorbed via the driven member 82. From being transmitted to 7 can be satisfactorily suppressed. According to the fluid transmission device 1, lockup is executed when the engine speed reaches a relatively low lockup speed Nluup, for example, about 1000 rpm, thereby improving power transmission efficiency and thus fuel efficiency of the engine. It becomes possible.

  As described above, in the damper device 8 of the embodiment, the plurality of first coil springs 83 are held by the lock-up piston 90 and the drive member 81 that constitute the input elements of the damper device 8, and the plurality of second coils. The spring 84 is held by the driven member 82. The intermediate member 85 extends toward the first coil spring 83 and extends toward the second coil spring 84 and a plurality of first engaging portions 85 a that engage with the corresponding first coil springs 83. A plurality of second engaging portions 85b that are engaged with the corresponding second coil springs 84, and support the plurality of mass bodies 22 in a swingable manner. The centrifugal pendulum vibration absorber 20 is configured together with the mass body 22.

  In this way, the plurality of first coil springs 83 are held by the lock-up piston 90 and the drive member 81 that constitute the input element of the damper device 8, so that the first coil spring 83 and the input element are engaged with each other. Therefore, it is not necessary to arrange the input element so as to straddle the intermediate member 85. Further, the intermediate member 85 is made of a plate member having a first engagement portion 85 a extending toward the first coil spring 83 and a second engagement portion 85 b extending toward the second coil spring 84. By omitting the holding function of the first and second coil springs 83 and 84 from the member 85, the structure of the intermediate member 85 is simplified and the intermediate member 85 has portions other than the first and second engaging portions 85a and 85b. Can be further flattened, and a sufficient space can be secured around the intermediate member 85. Thereby, even if the intermediate member 85 is used as a support member for supporting the plurality of mass bodies 22 of the centrifugal pendulum type vibration absorber 20, the rocking range of the mass body 22 is controlled by the lock-up piston 90, the drive member 81, and the intermediate member 85. Can be suppressed. Therefore, according to the damper device 8 of the embodiment, it is possible to make the damper device 8 compact while securing the swing range of the mass body 22 of the centrifugal pendulum vibration absorber 20.

  The intermediate member 85, which is a single plate member, has guide holes 85c that guide the mass body 22 in a swingable manner. The first engaging portions 85a of the intermediate member 85 are adjacent to the guide holes 85c adjacent to each other. The second engaging portion 85b is formed on the inner peripheral side of the guide hole 85c so as not to overlap the first engaging portion 85a when viewed from the radial direction. Thereby, in the fluid transmission device 1 of the embodiment, the mass body is provided between the first engaging portion 85a on the outer peripheral side and the second engaging portion 85b on the inner peripheral side while ensuring the strength of the intermediate member 85 satisfactorily. Thus, the damper device 8 can be made more compact by sufficiently securing the swinging range of 22 and suppressing the enlargement of the intermediate member 85. And if the some 1st coil spring 83 is arrange | positioned rather than the some 2nd coil spring 84 like the said Example, while the 1st coil spring 83 is easily hold | maintained only by the drive member 81, The second coil spring 84 can be easily held only by the driven member 82, and the entire structure can be simplified and the damper device 8 can be made more compact. However, the plurality of second coil springs 84 that engage with the driven member 82 as the output element are arranged on the outer peripheral side of the plurality of first coil springs 83, and the first engagement portion 85 a of the intermediate member 85 is disposed in the guide hole 85 c. While forming in the inner peripheral side, you may form the 2nd engaging part 85b in the outer peripheral side between the guide holes 85c adjacent to each other. And if the mass body 22 has the support shaft 23 arrange | positioned so that rolling is possible in the guide hole 85c of the intermediate member 85 like the said Example, the intermediate member 85 will be made from only one plate member. Can be.

  Further, in the damper device 8 of the embodiment, the lock-up piston 90 and the drive member 81 constituting the input element are connected to the front cover coupled to the engine via the lock-up clutch mechanism 9, and the first and second coil springs. 83 and 84 are arranged closer to the front cover 3 in the axial direction of the damper device 8 than the plurality of mass bodies 22 of the centrifugal pendulum vibration absorber 20. As a result, the lock-up piston 90 and the drive member 81 that hold the first coil spring 83 can be disposed on the front cover 3 side, so that the input element of the damper device 8 can be used as the mass body 22 of the centrifugal pendulum vibration absorber 20. Since there is no need to configure a plurality of members connected via rivets on the inner peripheral side, it is possible to ensure a favorable swing range of the plurality of mass bodies 22. Further, as in the above embodiment, the intermediate member 85 as the support member of the mass body 22 of the centrifugal pendulum vibration absorber 20 is not provided by disposing the first coil spring 83 on the outer peripheral side of the turbine runner 5 (torus). Since it is not necessary to bend in the axial direction as described in Patent Document 1, it is possible to satisfactorily secure the swing range of the plurality of mass bodies 22.

  FIG. 4 is a configuration diagram illustrating a fluid transmission device 1B including a damper device 8B according to a modification, and FIG. 5 is a configuration diagram illustrating a main part of the damper device 8B. In addition, in order to avoid duplicate description, the same code | symbol is attached | subjected about the structure same as the structure of the fluid transmission apparatus 1 of the above-mentioned Example among the structures of the fluid transmission apparatus 1B, and the illustration and detailed description are abbreviate | omitted. .

  As shown in FIG. 4, the damper device 8B according to the modified example is connected to the first intermediate plate 851 as a plate member, the first intermediate plate 851 and the turbine shell 50 via rivets and fitted to the damper hub 7. It has an intermediate member 85B composed of a second intermediate plate 852 as a second plate member to be joined. The first and second intermediate plates 851 and 852 of the intermediate member 85B are bent so as to be separated from each other in the axial direction on the outer peripheral side of the rivet insertion portion. The first intermediate plate 851 extends in the axial direction of the damper device 8 </ b> B toward the first coil spring 83 and is engaged with (abuts on) the end of the corresponding first coil spring 83. A plurality of second engagements extending in the axial direction of the damper device 8 toward the engaging portion 851a and the second coil spring 84 and engaging (contacting) with the other end of the corresponding second coil spring 84. A portion 851b and a plurality of guide holes 851c for guiding the mass body 22B are formed. As shown in FIG. 4, also in the intermediate member 85B, the first engagement portion 851a is formed on the outer peripheral side between the guide holes 851c adjacent to each other, and the second engagement portion 851b is seen from the radial direction. It is formed on the inner peripheral side of the guide hole 851c so as not to overlap the first engagement portion 851a. A plurality of second guide holes 852 c are formed in the second intermediate plate 852 so as to face the plurality of guide holes 851 c of the first intermediate plate 851.

  Further, the centrifugal pendulum type vibration absorber 20B of the damper device 8B is provided in the first protrusion 22a, which is rotatably disposed in the guide hole 851c of the first intermediate plate 851, and the second guide hole 852c of the second intermediate plate 852. It includes a plurality of mass bodies 22B having second protrusions 22b that are arranged to roll. Thereby, since the mass body 22B of the centrifugal pendulum vibration absorber 20B can be configured as a single member, the assemblability of the centrifugal pendulum vibration absorber 20B can be improved, and the intermediate member 85B can be used as the first and second intermediate members. Even if the plates 851 and 852 are used, an increase in the number of parts can be suppressed.

   In the above-described embodiments and modifications, the turbine shell 50 is fixed to the intermediate member 85 or the like of the damper device 8 via a rivet, but the turbine shell 50 extends to the vicinity of the damper hub 7 and the intermediate member 85 or the like. You may fix to the said damper hub 7, without connecting to. Moreover, although the fluid transmission apparatus 1 of the said Example is comprised as a torque converter provided with the pump impeller 4, the turbine runner 5, and the stator 6, the fluid transmission apparatus of this invention is comprised as a fluid coupling which does not have a stator. May be. Further, the fluid transmission device of the present invention may be provided with a multi-plate friction type lock-up clutch mechanism instead of the single-plate friction type lock-up clutch mechanism 9. Further, the configuration of the centrifugal pendulum vibration absorber of the present invention is that of the above-described centrifugal pendulum vibration absorbers 20 and 20B as long as the intermediate members 85 and 85B of the damper device 8 are used as support members for a plurality of mass bodies. It is not restricted to such a structure.

  Here, the correspondence between the main elements of the above-described embodiments and the like and the main elements of the invention described in the column of means for solving the problems will be described. That is, in the above-described embodiment, the lock-up piston 90 and the drive member 81 to which power from the engine is transmitted correspond to “input elements”, and the plurality of first powers to which power is transmitted from the lock-up piston 90 and the drive member 81. The coil spring 83 corresponds to a plurality of “first elastic bodies”, the intermediate members 85 and 85B to which power is transmitted from the first coil spring 83 correspond to “intermediate elements”, and power is transmitted from the intermediate members 85 and 85B. The plurality of second coil springs 84 correspond to a plurality of “second elastic bodies”, the drive member 81 to which power is transmitted from the second coil springs 84 corresponds to an “output element”, and the plurality of mass bodies 22 A centrifugal pendulum type vibration absorber 20 that attenuates vibrations by swinging is equivalent to a “centrifugal pendulum type vibration absorber”, and extends toward the first coil spring 83. A plurality of first engaging portions 85 a that engage with the corresponding first coil springs 83 correspond to “first engaging portions”, extend toward the second coil springs 84, and correspond to the second second portions. The plurality of second engaging portions 85b that engage with the coil spring 84 correspond to “second engaging portions”, and include a plurality of first engaging portions 85a, a plurality of second engaging portions 85b, and a plurality of guide holes 851c. The first intermediate plate 851 having the first and second intermediate plates 851 corresponds to the “first plate”, and the second intermediate plate 852 connected to the first intermediate plate 851 and having a plurality of second guide holes 852c facing the guide holes 851c is the “second plate”. Corresponds to “plate”.

  However, the correspondence between the main elements of the embodiment and the main elements of the invention described in the column of means for solving the problem is the invention described in the column of means for solving the problem by the embodiment. Therefore, the elements of the invention described in the column of means for solving the problems are not limited. In other words, the examples are merely specific examples of the invention described in the column of means for solving the problem, and the interpretation of the invention described in the column of means for solving the problem is It should be done based on the description.

  The embodiments of the present invention have been described above using the embodiments. However, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the present invention. Needless to say.

  The present invention can be used in the field of manufacturing damper devices.

  1, 1B Fluid transmission device, 3 Front cover, 4 Pump impeller, 5 Turbine runner, 6 Stator, 7 Damper hub, 8, 8B Damper device, 9 Lock-up clutch mechanism, 20, 20B Centrifugal pendulum type vibration absorber, 22, 22B Mass Body, 22a first protrusion, 22b second protrusion, 221 metal plate, 23 support shaft, 24 fastening member, 40 pump shell, 41 pump blade, 50 turbine shell, 51 turbine blade, 60 stator blade, 61 one-way clutch, 81 drive member, 81a spring engagement portion, 81b spring support portion, 82 driven member, 821 first driven plate, 821a spring holding portion, 822 second driven plate, 822a spring engagement portion, 83 first coil spring, 84 2-coil spring, 85, 85B intermediate member, 85a, 851a first engaging portion, 85b, 851b second engaging portion, 85c, 851c guide hole, 851 first intermediate plate, 852 second intermediate plate, 852c second guide Hole, 90 lockup piston, 90a outer periphery, 91 friction material, 95 lockup chamber.

Claims (6)

An input element to which power from the prime mover is transmitted, a plurality of first elastic bodies to which power is transmitted from the input elements, an intermediate element to which power is transmitted from the first elastic body, and power from the intermediate elements In a damper device comprising: a plurality of second elastic bodies to be transmitted; an output element to which power is transmitted from the second elastic bodies; and a centrifugal pendulum type vibration absorber that attenuates vibrations by swinging the plurality of mass bodies.
The plurality of first elastic bodies are held by the input element, and the plurality of second elastic bodies are held by the output element,
The intermediate element extends toward the first elastic body and a plurality of first engaging portions that engage with the corresponding first elastic bodies, and extends toward the second elastic body. Including a single plate member having a plurality of second engaging portions engaged with the corresponding second elastic bodies, and supporting the plurality of mass bodies in a swingable manner together with the plurality of mass bodies Constituting the centrifugal pendulum vibration absorber ,
Each of the plate members has a plurality of guide holes for swingably guiding the mass body,
One of the first and second engaging portions is formed on the outer peripheral side between the adjacent guide holes, and the other of the first and second engaging portions is on the inner peripheral side of the guide hole. damper device according to claim Rukoto formed. The damper device according to claim 1,
The damper device according to claim 1, wherein the first and second engaging portions are formed on the intermediate element so as not to overlap each other when viewed in the radial direction. The damper device according to claim 1 or 2 ,
The plurality of first elastic bodies are arranged on the outer peripheral side with respect to the plurality of second elastic bodies,
The first engagement portion is formed on an outer peripheral side between adjacent guide holes, and the second engagement portion is formed on an inner peripheral side of the guide hole. . The damper device according to any one of claims 1 to 3,
The mass body includes a support shaft that is rotatably disposed in the guide hole of the plate member. The damper device according to any one of claims 1 to 3,
The intermediate element further includes a second plate member coupled to the plate member and having a plurality of second guide holes facing the guide holes of the plate member,
The mass body includes a first protrusion that is rotatably disposed in the guide hole of the plate member, and a second protrusion that is rotatably disposed in the second guide hole of the second plate member. And a damper device. The damper device according to any one of claims 1 to 5 ,
The input element is connected to an input member coupled to the prime mover via a lock-up clutch,
The damper device, wherein the first and second elastic bodies are disposed closer to the input member in the axial direction of the damper device than the plurality of mass bodies.

Images