JP6587388B2 - Dynamic vibration absorber for automobile and lockup device for torque converter - Google Patents

Description

  The present invention relates to a dynamic vibration absorber for an automobile and a lockup device for a torque converter.

  In many cases, the torque converter is provided with a lock-up device for transmitting torque directly from the front cover to the turbine. The lockup device includes a piston that can be frictionally connected to the front cover, a drive plate that is fixed to the piston, a driven plate, and a plurality of torsion springs. The driven plate is fixed to the turbine of the torque converter, and is elastically connected to the drive plate in the rotational direction via a plurality of torsion springs. In such a lockup device, vibration is attenuated by providing a pendulum damper on the output rotating member (see Patent Document 1).

Japanese Patent No. 5473933

  In a conventional lockup device, vibration can be attenuated by a pendulum damper. In this type of pendulum damper, the natural frequency depends on the relationship between the distance L connecting the rotation center of the output rotating member and the swing center of the pendulum and the swing radius R of the pendulum based on the swing center of the pendulum. It is determined. For example, the natural frequency is determined by a coefficient q (= √ (R / L)). For this reason, when the input from the engine changes and the response frequency of the lock-up device with respect to this input changes, the shape of the pendulum damper, that is, the distance L and the swing radius R must be adjusted according to the change. There is. In other words, it was difficult to adjust the pendulum damper.

  On the other hand, in the conventional lock-up device, the mass body (inertial mass body) of the pendulum damper engages the pin member with the U-shaped long groove of the output rotation member, so that the mass body is relative to the output rotation member. Swing. In this case, when the rotation speed of the output rotation member increases, the pin member may collide with the end of the long groove. Further, if the rotation speed of the output rotating member is insufficient, the pin member may collide with the bottom of the long groove. Thus, in the conventional lock-up device, there is a possibility that a collision sound is generated.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a dynamic vibration absorber capable of easily adjusting a response to vibration of a rotating member. Another object of the present invention is to provide a dynamic vibration absorber capable of reducing abnormal noise.

  The automobile dynamic vibration damping device according to the first aspect of the present invention includes a rotating member, a mass part, and an adjusting part. The rotating member is rotatable around the center of rotation. The mass unit attenuates the vibration of the rotating member by moving relative to the rotating member when the rotating member rotates. The adjustment unit elastically connects the rotating member and the mass unit, and adjusts the movement of the mass unit.

  In this dynamic vibration absorber, the vibration of the rotating member can be attenuated by moving the mass portion relative to the rotating member when the rotating member rotates. Further, the mass portion moves relative to the rotating member, and the adjusting portion elastically connects the mass portion to the rotating member. That is, the adjustment unit operates in the same rotation system as the rotation member together with the mass unit. Thereby, the adjustment part can adjust the movement of a mass part with an elastic member etc., for example. Thus, in this dynamic vibration absorber, the response to the vibration of the rotating member can be easily adjusted by the adjustment unit adjusting the movement of the mass unit.

  On the other hand, in the present dynamic vibration absorber, the adjustment unit elastically couples the mass unit to the rotating member, so that the movement amount of the mass unit can be adjusted by the adjustment unit. Thereby, the noise which generate | occur | produces when a mass part buffers other members, for example, a rotation member, can be reduced. That is, in this dynamic vibration absorber, the generation of abnormal noise due to the mass part can be reduced.

  In the dynamic vibration damping device for automobiles according to the second aspect of the present invention, in the dynamic vibration damping device according to the first aspect, the mass portion swings relative to the rotating member with a position different from the rotation center as the swing center. To do.

  In this case, the mass unit swings with respect to the swing center. This rocking center is different from the rotation center of the rotating member. As described above, the mass portion swings based on the swing center different from the rotation center of the rotating member, so that the vibration of the rotating member can be attenuated in a wide range of frequencies.

  In the dynamic vibration damping device for automobiles according to the third aspect of the present invention, in the dynamic vibration damping device according to the first side surface or the second side surface, the adjusting unit is mounted on the rotating member, the mounting unit, and the mass unit. And a connecting portion for elastically connecting the two.

  In this case, in the adjustment unit, the mounting unit is mounted on the rotating member, and the connecting unit elastically connects the mounting unit and the mass unit. By configuring the adjustment unit in this manner, the rotating member and the mass unit can be easily connected.

  In the dynamic vibration damping device for automobiles according to the fourth aspect of the present invention, in the dynamic vibration damping device according to the third aspect, the mounting portion is rotatably mounted on the rotating member.

  In this case, since the mounting portion is rotatably mounted on the rotating member, the mounting portion can be rotated with respect to the rotating member in accordance with the movement of the mass portion. Thereby, a connection part can be maintained between a mounting part and a mass part with a suitable posture. That is, the movement of the mass part can be suitably adjusted by the adjustment unit.

  In the dynamic vibration damping device for automobiles according to the fifth aspect of the present invention, in the dynamic vibration damping device according to any one of the first side surface to the fourth side surface, each of the plurality of mass parts is arranged in the rotational direction, In addition, the rotating member is swingably mounted. An adjustment part is arrange | positioned between the mass parts adjacent in the rotation direction, and connects a rotation member and a mass part.

  In this case, since each of the plurality of mass portions is arranged side by side in the rotation direction with respect to the rotating member and is swingably mounted, the vibration of the rotating member can be stably damped. Moreover, since the adjustment part is arrange | positioned between the mass parts adjacent in the rotation direction, the movement of a several mass part can be adjusted stably.

  In the dynamic vibration damping device for automobiles according to the sixth aspect of the present invention, in the dynamic vibration damping device according to any one of the first side surface to the fifth side surface, the rotating member has a guide portion. The mass part dampens the vibration of the rotating member by swinging with respect to the guide part.

  In this case, when the rotating member rotates, the mass portion swings with reference to the guide portion of the rotating member. Thereby, a mass part can be rock | fluctuated (moved) stably. That is, the response to the vibration of the rotating member can be stably adjusted by the mass portion.

  A dynamic vibration damping device for an automobile according to a seventh aspect of the present invention is the dynamic vibration damping device according to the sixth aspect, further comprising a support portion that supports the mass portion so as to be swingable with respect to the rotating member. By engaging the support portion with the guide portion, the mass portion swings with respect to the guide portion.

  In this case, the support portion supports the mass portion so as to be swingable with respect to the rotating member, and engages with the guide portion. Thereby, the structure which a mass part rock | fluctuates with respect to a rotation member is easily realizable.

  In the dynamic vibration damping device for automobiles according to the eighth aspect of the present invention, in the dynamic vibration damping device according to any one of the first side surface to the seventh side surface, the rotating member includes the first rotating member and the axial direction. A second rotating member disposed to face the one rotating member. The mass unit is disposed between the first rotating member and the second rotating member.

  In this case, since the mass portion is disposed between the first rotating member and the second rotating member, the mass portion is stably operated with respect to the rotating members (the first rotating member and the second rotating member). Can do.

  In the dynamic vibration damping device for automobiles according to the ninth aspect of the present invention, in the dynamic vibration damping device according to the eighth aspect, the adjustment portion is mounted on at least one of the first rotating member and the second rotating member. And a connecting part that elastically connects the mounting part and the mass part. The mounting portion is disposed between the first rotating member and the second rotating member.

  In this case, since the mounting portion is disposed between the first rotating member and the second rotating member, the mounting portion is reliably positioned with respect to at least one of the first rotating member and the second rotating member. And can be mounted.

  A torque converter lockup device according to a tenth aspect of the present invention is a lockup device for transmitting torque from a front cover to a turbine of the torque converter. The lock-up device includes an input rotation member, a clutch unit, an output rotation member, an elastic member, a mass unit, and an adjustment unit. The clutch portion is disposed between the front cover and the input rotation member. The output rotating member is connected to the turbine and is rotatable relative to the input rotating member. The elastic member elastically connects the input rotation member and the output rotation member in the rotation direction. The mass portion attenuates the vibration of the output rotating member by moving relative to the output rotating member when the output rotating member rotates. The adjustment unit elastically connects the output rotation member and the mass unit, and adjusts the movement of the mass unit.

  Since the lock-up device of the present torque converter has the same configuration as the above-described dynamic vibration absorber, the same effect as the above effect can be obtained.

  A torque converter lockup device according to an eleventh aspect of the present invention is a lockup device for transmitting torque from a front cover to a turbine of the torque converter. The lockup device includes an input rotation member, a clutch unit, an output rotation member, a plurality of elastic members, an intermediate member, a mass unit, and an adjustment unit. The clutch portion is disposed between the front cover and the input rotation member. The output rotating member is connected to the turbine and is rotatable relative to the input rotating member. The plurality of elastic members elastically connect the input rotation member and the output rotation member in the rotation direction. The plurality of elastic members include a first elastic member and a second elastic member. The intermediate member connects the first elastic member and the elastic member in series with each other. The mass portion attenuates intermediate vibrations by moving relative to the intermediate member when the intermediate member rotates. The adjustment unit elastically connects the intermediate member and the mass unit, and adjusts the movement of the mass unit.

  Since the lock-up device of the present torque converter has the same configuration as the above-described dynamic vibration absorber, the same effect as the above effect can be obtained.

  In the automobile dynamic vibration damping device of the present invention, the response of the rotating member to vibration can be easily adjusted. In the dynamic vibration absorber for automobiles of the present invention, it is possible to reduce noise generated in the dynamic vibration absorber. The same effect can also be obtained in the torque converter lockup device of the present invention.

1 is a cross-sectional view of a torque converter including a lockup device according to an embodiment of the present invention. The expanded sectional view of the part corresponding to a dynamic vibration damper in FIG. Front view of driven plate (excluding pendulum holder). Front view of the dynamic vibration absorber (excluding the driven plate). The front view for demonstrating operation | movement of a dynamic vibration damper (except a driven plate). View of pendulum holder viewed from outside (excluding driven plate). The model figure of a lockup apparatus.

[Overall configuration of torque converter]
FIG. 1 is a cross-sectional view of a torque converter 1 that employs a lock-up device as an embodiment of the present invention. An engine (not shown) is arranged on the left side of FIG. 1, and a transmission (not shown) is arranged on the right side of the figure. OO shown in FIG. 1 is a rotation center line of the torque converter and the lockup device. Further, the term “circumferential direction” used in the present embodiment includes “first circumferential direction” that is a counterclockwise direction and “second circumferential direction” that is a clockwise direction.

  The torque converter 1 includes a front cover 2, a torque converter main body 3, and a lockup device 4. The torque converter body 3 has a torus-shaped fluid working chamber, and the fluid working chamber includes an impeller 5, a turbine 6, and a stator 7.

  The front cover 2 is a substantially disk-shaped member. The rotation center O side of the front cover 2 is connected to a crankshaft (not shown). A plurality of nuts 10 are fixed to the outer peripheral side of the front cover 2 at equal intervals in the circumferential direction. The outer peripheral portion of the flexible plate (not shown) is fixed to the front cover 2 by a bolt (not shown) screwed into the nut 10.

  The impeller 5 includes an impeller shell 12, a plurality of impeller blades 13 fixed inside the impeller shell 12, and an impeller hub 14 fixed to the inner peripheral portion of the impeller shell 12. The outer peripheral edge of the impeller shell 12 is welded to the front end in the axial direction of the outer peripheral cylindrical portion 2 a formed on the outer peripheral portion of the front cover 2.

  The turbine 6 is disposed to face the impeller 5 in the axial direction. The turbine 6 includes a turbine shell 16, a plurality of turbine blades 17 fixed to the inside of the turbine shell 16, and a turbine hub 18 fixed to the inner peripheral edge of the turbine shell 16. An inner peripheral end of the turbine shell 16 is fixed to the turbine hub 18 by a plurality of rivets 20. A spline 18 a that engages with the input shaft 21 of the transmission is formed on the inner peripheral surface of the turbine hub 18. Thereby, the turbine hub 18 rotates integrally with the input shaft.

  The stator 7 is disposed between the inner periphery of the impeller 5 and the inner periphery of the turbine 6. The stator 7 rectifies the flow of hydraulic oil returning from the turbine 6 to the impeller 5. The stator 7 has an annular stator shell 22 and a plurality of stator blades 23 provided on the outer peripheral surface of the shell 22. The stator shell 22 is supported by a cylindrical fixed shaft 25 via a one-way clutch 24. The fixed shaft 25 extends between the outer peripheral surface of the input shaft 21 and the inner peripheral surface of the impeller hub 14.

  Thrust bearings 27 and 28 are arranged between the turbine hub 18 and the one-way clutch 24 and between the stator 7 and the impeller 5 in the axial direction, respectively.

[Structure of lock-up device 4]
The lockup device 4 is for damping vibration transmitted from the engine to the transmission. As shown in FIG. 1, the lock-up device 4 is disposed between the turbine 6 and the front cover 2 and is a mechanism for mechanically connecting the two. The lock-up device 4 includes a piston 30 (an example of a clutch unit), a drive plate 31 (an example of an input rotating member), an intermediate plate 41, a float member 47, and a driven plate 32 (an example of a rotating member and an output rotating member). ), A plurality of torsion springs 33 (an example of an elastic member), a plurality of pendulum units 60 (an example of a mass part and a support part), and a plurality of pendulum adjustment units 50 (an example of an adjustment part) Yes.

  The driven plate 32, the plurality of pendulum units 60, and the plurality of pendulum adjustment units 50 constitute a dynamic vibration absorber 100. That is, the driven plate 32, the plurality of pendulum units 60, and the plurality of pendulum adjustment units 50 are examples of a dynamic vibration absorber.

<Piston 30>
The piston 30 is a member for connecting and disconnecting the clutch. The piston 30 is formed in a substantially disk shape having a hole. As shown in FIG. 1, an inner peripheral cylindrical portion 30 a extending toward the axial transmission side is formed on the inner peripheral portion of the piston 30. The inner peripheral cylindrical portion 30a is supported by the outer peripheral surface of the turbine hub 18 on the engine side so as to be movable in the circumferential direction and the axial direction. Note that the piston 30 is restricted from moving toward the transmission in the axial direction by contacting the transmission side surface of the turbine hub 18.

  In addition, a seal ring 30 c that comes into contact with the inner peripheral surface of the inner peripheral side tubular portion 30 a of the piston 30 is provided on the outer peripheral surface of the turbine hub 18 on the engine side. Thereby, the inner peripheral edge of the piston 30 is sealed. Further, an annular friction coupling portion 30 b is formed on the outer peripheral side of the piston 30. An annular friction facing 29 (an example of a clutch portion) is fixed to the axial direction engine side of the friction coupling portion 30b.

<Drive plate 31>
The drive plate 31 is a substantially annular and disk-shaped member. The drive plate 31 can rotate around the rotation center O. As shown in FIG. 1, the drive plate 31 has a fixed portion 31a on the inner peripheral portion, and has a plurality of window holes 31b on the outer peripheral side of the fixed portion 31a. The fixing portion 31 a is fixed to the piston 30 by the rivet 11. The window hole 31b is a hole that penetrates in the axial direction. An inner peripheral torsion spring 35 (described later) is disposed in the window hole 31b. The frame portions 31d facing each other in the circumferential direction in the window hole 31b are formed so as to be able to abut on both end portions of the torsion spring 35 on the inner peripheral side.

<Intermediate plate 41>
The intermediate plate 41 connects an inner periphery side torsion spring 35 and an outer periphery side torsion spring 36 (described later) in series. The intermediate plate 41 is a substantially annular and disk-shaped plate member. The intermediate plate 41 can rotate relative to the drive plate 31.

  As shown in FIG. 1, the intermediate plate 41 includes a first intermediate plate 41a and a second intermediate plate 41b. The first intermediate plate 41a is disposed on the axial direction engine side. The first intermediate plate 41a is supported by the support protrusion 31c so as to be rotatable relative to the drive plate 31 on the inner peripheral side.

  The second intermediate plate 41b is disposed on the axial transmission side. The first intermediate plate 41a and the second intermediate plate 41b are arranged at a predetermined interval in the axial direction. A drive plate 31 is disposed between the first intermediate plate 41a and the second intermediate plate 41b. The first intermediate plate 41a and the second intermediate plate 41b are connected to each other by a plurality of fixing members such as a plurality of rivets (not shown) so that they cannot rotate relative to each other and cannot move in the axial direction.

  Windows 44a and 45a are formed in the first intermediate plate 41a and the second intermediate plate 41b, respectively. Between the axial direction of the window part 44a and the window part 45a, the inner periphery side torsion spring 35 is arrange | positioned. Frame portions 44b and 45b facing each other in the circumferential direction in the window portions 44a and 45a are formed so as to be able to contact both end portions of the torsion spring 35 on the inner peripheral side. Cut and raised portions cut and raised in the axial direction are formed on the inner and outer peripheral portions of the window portions 44a and 45a.

  The first intermediate plate 41a has a plurality of engaging portions 41c that can engage with the torsion spring 36 on the outer peripheral side. Each of the plurality of engaging portions 41c is formed on the outer peripheral portion of the first intermediate plate 41a at a predetermined interval in the circumferential direction. A torsion spring 36 on the outer peripheral side is disposed between the engaging portions 41c adjacent to each other in the circumferential direction. The engaging portion 41c can abut on the circumferential end portion of the outer torsion spring 36.

<Float member 47>
The float member 47 is a member for operating adjacent torsion springs 36 on the outer peripheral side in series. The float member 47 is formed in a substantially annular shape. As shown in FIG. 1, the float member 47 is supported by the support protrusion 41d so as to be rotatable relative to the intermediate plate 41, for example, the first intermediate plate 41a. The float member 47 holds the outer peripheral side of the outer peripheral side torsion spring 36. In the float member 47, connecting portions 47a are formed at intervals in the circumferential direction. The connecting portion 47 a is disposed between the two adjacent outer peripheral torsion springs 36, and abuts against the end of the outer peripheral torsion spring 36. As a result, the two adjacent outer peripheral torsion springs 36 operate in series.

<Driven plate 32>
The driven plate 32 is a substantially annular and disk-shaped member. The driven plate 32 can rotate around the rotation center O. As shown in FIG. 2, the driven plate 32 includes a plate main body portion 37 (an example of a first rotating member) and a pendulum holding portion 38 (an example of a second rotating member).

  The plate main body 37 is a substantially annular and disk-shaped member. As shown in FIGS. 2 and 3, the plate main body portion 37 includes a fixing portion 37a, a plurality of engaging portions 37b, a plurality of first guide groove portions 39 (an example of a guide portion; see FIG. 3), and a plurality of The first cutout portion 37c and a plurality of first adjustment unit holding portions 37e.

  The fixing portion 37 a is provided on the inner peripheral portion of the plate main body portion 37. The fixing portion 37 a is fixed to the turbine hub 18 by the rivet 20 together with the turbine shell 16. The plurality of engaging portions 37 b are provided on the outer peripheral portion of the plate main body portion 37. Each of the plurality of engaging portions 37b is formed by being bent toward the front cover 2 side. Each engaging part 37b can contact | abut to the end surface of the circumferential direction of the torsion spring 36 of an outer peripheral side.

  The plurality of first guide groove portions 39 are for swinging the pendulum unit 60 with respect to the driven plate 32. As shown in FIG. 3, the plurality of first guide groove portions 39 have, for example, four sets of first grooves 39 a each including two sets. The two (one set) first grooves 39a are arranged at a predetermined interval. Each of the two (one set) first grooves 39a is a long hole extending in an arc shape and penetrates in the axial direction. The arc-shaped first groove 39a is formed so that the recessed portion in the arc-shaped outer shape is disposed on the rotation center O side of the plate main body portion 37. A pin member 62 (a small diameter portion 62b described later) is disposed in the first groove 39a.

  As shown in FIG. 2, the plurality of first cutout portions 37c are provided between the fixing portion 37a and the engaging portion 37b in the radial direction. The plurality of first cutout portions 37c are constituted by, for example, eight first cutout portions 37c. The plurality of first cutout portions 37c are arranged side by side in the circumferential direction. Each first cutout portion 37c is opened radially outward. An adjustment spring 52 (described later) of the pendulum adjustment unit 50 is disposed in each first notch 37c.

  The plurality of first adjustment unit holding portions 37 e are for holding the pendulum adjustment unit 50. As shown in FIG. 3, the first adjustment unit holding part 37e is provided in the first cutout part 37c. Specifically, the first adjustment unit holding portion 37e protrudes outward from the central portion of each first cutout portion 37c in the circumferential direction. A first hole portion 37d is formed in the first adjustment unit holding portion 37e.

  As shown in FIG. 2, the pendulum holding portion 38 is disposed to face the plate main body portion 37 in the axial direction. The pendulum holding part 38 is arranged at a predetermined interval with respect to the plate main body part 37. Between the pendulum holding portion 38 and the plate main body portion 37, a swing plate 61 (described later) of the pendulum unit 60 and a mounting portion 51 (main body portion 51a; described later) of the pendulum adjustment unit 50 are disposed. The

  The pendulum holding portion 38 is fixed to the plate main body portion 37 by a fixing member such as a rivet 19. On the outer peripheral portion of the rivet 19, a cylindrical interval holding portion 19 a is provided between the pendulum holding portion 38 and the plate main body portion 37. The pendulum holding portion 38 and the plate main body portion 37 are held at a predetermined interval by the interval holding portion 19a. The axial thickness of the interval holding portion 19a is thicker than the axial thickness of the swing plate 61 (described later).

  2 and 6, the pendulum holding portion 38 includes a plurality of second guide groove portions 40 (an example of a guide portion; see FIG. 6), a plurality of second notches 38a, and a plurality of second adjustments. Unit holding part 38c.

  The plurality of second guide groove portions 40 are for swinging a swing plate 61 (described later) with respect to the driven plate 32. As shown in FIG. 6, the plurality of second guide groove portions 40 include, for example, four sets of second grooves 68 a each including two sets. The two (one set) second grooves 68a are arranged at a predetermined interval. Each of the two (one set) second grooves 68a is a long hole extending in an arc shape and penetrates in the axial direction. The arc-shaped second groove 68a is formed so that the recessed portion in the arc-shaped outer shape is disposed on the rotation center O side of the plate main body portion 37. The groove width of the second groove 68a is substantially the same as the groove width of the first groove 39a. That is, the second groove 68a is formed in substantially the same shape as the first groove 39a.

  Further, the second groove 68a is disposed to face the first groove 39a. Specifically, the second groove 68a is disposed at the same position as the first groove 39a in the radial direction and the circumferential direction. That is, the first groove 39a and the second groove 68a are disposed to face each other in the axial direction. In this state, a pin member 62 (a small diameter portion 62b described later) is disposed in the first groove 68a and the second groove 68a.

  As shown in FIGS. 2 and 6, the plurality of second cutout portions 38 a are provided on the outer peripheral portion of the pendulum holding portion 38. The plurality of second cutout portions 38a are composed of, for example, eight second cutout portions 38a. Each of the plurality of second notches 38a is arranged side by side in the circumferential direction. Each second notch 38a opens outward in the radial direction.

  Each second notch 38a is disposed at the same position as the first notch 37c in the radial direction and the circumferential direction. That is, the first cutout portion 37c and the second cutout portion 38a are disposed to face each other in the axial direction. An adjustment spring 52 (described later) of the pendulum adjustment unit 50 is disposed in each second notch 38a.

  The plurality of second adjustment unit holding portions 38 c are for holding the pendulum adjustment unit 50. As shown in FIG. 6, the second adjustment unit holding portion 38c is provided in the second cutout portion 38a. Specifically, the second adjustment unit holding part 38c protrudes outward from the center part of each second notch part 38a in the circumferential direction. A second hole 38b is formed in the second adjustment unit holding portion 38c.

<Torsion spring 33>
As shown in FIG. 2, the plurality of torsion springs 33 are composed of a plurality (for example, eight) inner torsion springs 35 and a plurality (for example, eight) outer torsion springs 36. .

Each of the plurality of torsion springs 35 on the inner peripheral side is supported in the circumferential direction by a drive plate 31 (frame portion 31d) and an intermediate plate 41 (first intermediate plate 41a and second intermediate plate 41b).
Specifically, each of the plurality of inner peripheral torsion springs 35 is circumferentially formed by the frame portion 31d of the drive plate 31, the frame portion 44b of the first intermediate plate 41a, and the frame portion 45b of the second intermediate plate 41b. It is supported. Accordingly, the plurality of inner peripheral torsion springs 35 can be compressed by the drive plate 31 and the intermediate plate 41.

  A plurality of inner torsion springs 35 are held by the intermediate plate 41 (the window portion 44a of the first intermediate plate 41a and the window portion 45a of the second intermediate plate 41b). In other words, the movement of the plurality of inner torsion springs 35 in the axial direction and the radial direction is restricted by the intermediate plate 41.

  Each of the plurality of torsion springs 36 on the outer peripheral side is supported in the circumferential direction by the intermediate plate 41 (the first intermediate plate 41a and the second intermediate plate 41b), the float member 47, and the driven plate 32. Accordingly, the plurality of outer peripheral torsion springs 36 can be compressed by the intermediate plate 41 and the driven plate 32 via the float member 47.

  Two adjacent outer peripheral torsion springs 36 (a set of outer peripheral torsion springs 36) are connected in series via a connecting portion 47 a of a float member 47. That is, each of the torsion springs 36 on the outer peripheral side of each group operates in series. Further, the outer peripheral side torsion springs 36 are restricted from moving radially outward and axially by a float member 47.

<Pendulum unit 60>
The plurality of pendulum units 60 attenuate relative to the driven plate 32 by moving relative to the driven plate 32 when the driven plate 32 rotates. Specifically, the plurality of pendulum units 60 attenuate the vibration of the driven plate 32 by swinging with respect to the first guide groove 39 and the second guide groove 40 when the driven plate 32 rotates. In the present embodiment, the case where the pendulum unit 60 is in the state of the solid line in FIG. 4 and the broken line in FIG. 5 is defined as a neutral position (neutral state).

  As shown in FIGS. 3 and 4, each of the plurality of pendulum units 60 is supported by the first guide groove portion 39 and the second guide groove portion 40. Specifically, when the driven plate 32 rotates, each pendulum unit 60 swings with respect to the first groove 39a (see FIG. 3) and the second groove 68a as shown in FIG. Damping the vibration.

  Specifically, the pendulum unit 60 includes a swing plate 61 (an example of a mass part) and a plurality of pin members 62 (an example of a support part).

  As shown in FIG. 4, each of the plurality of swing plates 61 is arranged side by side in the circumferential direction, and is mounted on the driven plate 32 so as to be swingable. For example, the swing plate 61 is swingably attached to the driven plate 32 via the pin member 62.

  As shown in FIG. 5, the swing plate 61 swings with respect to the driven plate 32 when the driven plate 32 rotates, thereby attenuating the vibration of the driven plate 32. Specifically, when the driven plate 32 rotates, the pin member 62 moves along the first guide groove portion 39 (see FIG. 3) and the second guide groove portion 40, so that the swing plate 61 moves relative to the driven plate 32. Swing.

  Here, the swing plate 61 swings with respect to the driven plate 32 with a position different from the rotation center O as the swing center P. The swing center P is provided between the center of gravity G and the rotation center O of the swing plate 61 in the radial direction.

  As shown in FIG. 2, the swing plate 61 is disposed between the plate main body portion 37 and the pendulum holding portion 38 in the axial direction. The swing plate 61 is formed in a fan shape. As shown in FIG. 4, the swing plate 61 has a spring holding portion 63, a third guide groove portion 64, and an additional weight portion 65.

  The spring holding portion 63 is for holding an adjustment spring 52 (described later) of the pendulum adjustment unit 50. The spring holding part 63 has a plurality of (two) recesses 63a. The recesses 63a are formed at both ends of the swing plate 61 in the circumferential direction. The end of the adjustment spring 52 is disposed in the recess 63a. The end of the adjustment spring 52 is held by the recess 63a.

  The third guide groove 64 is for swinging the swing plate 61 with respect to the driven plate 32. As shown in FIG. 4, the third guide groove portion 64 has a plurality of (for example, two) third grooves 64a. Each of the plurality of third grooves 64a is a long hole extending in an arc shape and penetrates in the axial direction. The arc-shaped third groove 64 a is formed so that the convex portion in the arc-shaped outer shape is disposed on the rotation center O side of the plate main body portion 37. The groove width of the third groove 64a is larger than the groove width of the first groove 39a and the groove width of the second groove 68a. A pin member 62 (a large-diameter portion 62a described later) is disposed in the third groove 64a.

  As shown in FIGS. 1 and 4, the additional weight portion 65 is fixed to the outer peripheral portion of the swing plate 61 by a fixing member such as a rivet 26 (see FIG. 1). The weight of the swing plate 61 is adjusted by the additional weight portion 65. By changing the weight of the additional weight portion 65, the swing timing and swing amount of the swing plate 61 change.

  As shown in FIG. 4, a plurality of (for example, two) pin members 62 support the swing plate 61 so as to be swingable with respect to the driven plate 32. By engaging the pin member 62 with the first guide groove 39 (see FIG. 3) and the second guide groove 40 in the driven plate 32, the swing plate 61 causes the first guide groove 39 and the second guide groove 40 to move. Swings as a reference. More specifically, by disposing the pin member 62 in the first guide groove 39 and the second guide groove 40 of the driven plate 32 and the third guide groove 64 of the swing plate 61, the swing plate 61 is It swings with reference to the first guide groove 39 and the second guide groove 40.

  More specifically, the pin member 62 has a large diameter portion 62a and a small diameter portion 62b. The large-diameter portion 62 a is provided at the axially central portion of the pin member 62. The large diameter portion 62 a is disposed in the third groove 64 a of the swing plate 61. The diameter of the large diameter portion 62 a is larger than the groove width of the first groove 39 a of the plate main body portion 37 and the groove width of the second groove 68 a of the pendulum holding portion 38. The small diameter part 62b is formed on both axial sides of the large diameter part 62a. The small diameter portion 62b is formed to have a smaller diameter than the large diameter portion 62a. The small diameter portion 62b is disposed in the first groove 39a of the plate main body portion 37 (driven plate 32) and the second groove 68a of the pendulum holding portion 38 (driven plate 32).

  Here, as described above, the swing plate 61 is disposed between the plate main body portion 37 and the pendulum holding portion 38 in the axial direction. Further, since the diameter of the large diameter portion 62a is larger than the groove width of the first groove 39a and the groove width of the second groove 68a, the large diameter portion 62a is disposed between the plate main body portion 37 and the pendulum holding portion 38. In this state, the plate main body portion 37 and the pendulum holding portion 38 are prevented from coming off.

  In this manner, the pin member 62 is prevented from being detached by the plate main body portion 37 and the pendulum holding portion 38, and is formed in the first to third guide groove portions 39, 40, and 64 (first to third grooves 39a, 68a, and 64a). It can slide along.

<Pendulum adjustment unit 50>
Each of the plural (for example, four) pendulum adjustment units 50 elastically connects the driven plate 32 and the pendulum unit 60 to adjust the movement (movement amount) of the swing plate 61. Specifically, as shown in FIG. 4, each pendulum adjustment unit 50 is disposed between pendulum units 60 adjacent in the circumferential direction. In this state, each pendulum adjustment unit 50 elastically connects the driven plate 32 and the swing plate 61 of the pendulum unit 60.

  Each pendulum adjustment unit 50 includes a mounting portion 51 and a plurality of (for example, two) adjustment springs 52 (an example of a connecting portion).

  The mounting portion 51 is mounted on the driven plate 32. Specifically, the mounting portion 51 is mounted on at least one of the plate main body portion 37 and the pendulum holding portion 38. More specifically, the mounting portion 51 is mounted on the plate main body portion 37 and the pendulum holding portion 38. Here, the mounting portion 51 is rotatably mounted on the plate main body portion 37 and the pendulum holding portion 38.

  As shown in FIGS. 2, 4, and 5, the mounting portion 51 includes a body portion 51 a, first and second spring support portions 51 b and 51 c, and first and second shaft portions 51 d and 51 e. Have. The main body portion 51a is disposed between the plate main body portion 37 and the pendulum holding portion 38 in the axial direction (see FIG. 2), and is rotatably attached to the plate main body portion 37 and the pendulum holding portion 38 (see FIG. 2). 4 and FIG. Specifically, the main body 51a is rotatable with respect to the plate main body 37 and the pendulum holding portion 38 around the axis of the first shaft 51d and the second shaft 51e. The axial thickness of the main body 51 a is thicker than the axial thickness of the swing plate 61. Further, the axial thickness of the main body 51a is substantially the same as the axial thickness of the above-described interval holding portion 19a.

  As shown in FIG. 4, the main body 51a is disposed between two adjustment springs 52 adjacent in the circumferential direction. Specifically, the main body 51a is between two adjustment springs 52 (52L and 52R in FIG. 5) adjacent to each other in the circumferential direction in a state where the main body 51a is rotatably attached to the plate main body 37 and the pendulum holding unit 38. Arranged.

  The first spring support portion 51b is a portion protruding outward from one end portion of the main body portion 51a. For example, the first spring support portion 51b protrudes substantially in the first circumferential direction (counterclockwise direction) in a state where the main body portion 51a is mounted on the plate main body portion 37 and the pendulum holding portion 38. The first spring support portion 51b is disposed on one inner peripheral portion (inner peripheral portion of the adjustment spring 52L in FIG. 5) of the two adjustment springs 52, and supports the end portion of the adjustment spring 52 (52L). To do.

  The second spring support portion 51c is a portion protruding outward from the other end portion of the main body portion 51a. For example, the second spring support 51c protrudes generally in the second circumferential direction (clockwise direction) when the main body 51a is mounted on the plate main body 37 and the pendulum holding portion 38. The second spring support portion 51c is arranged on the other inner peripheral portion (inner peripheral portion of the adjustment spring 52R in FIG. 5) of the two adjustment springs 52, and supports the end portion of the adjustment spring 52 (52R). To do.

  As shown in FIG. 2, the first shaft portion 51d is a portion extending from the main body portion 51a to the engine side. The first shaft portion 51d is formed integrally with the main body portion 51a. The first shaft portion 51d is disposed in the first hole portion 37d of the first adjustment unit holding portion 37e formed in the plate main body portion 37 (see FIG. 3). The diameter of the first hole portion 37d is larger than the diameter of the first shaft portion 51d. In addition, the diameter of the first shaft portion 51d is smaller than the minimum dimension of the portion (surface) where the first shaft portion 51d is formed on the main body portion 51a.

  The second shaft portion 51e is a portion extending from the main body portion 51a to the transmission side. The second shaft portion 51e is formed integrally with the main body portion 51a at a portion on the opposite side to the first shaft portion 51d in the axial direction. The second shaft portion 51e is disposed in the second hole 38b of the second adjustment unit holding portion 38c formed in the pendulum holding portion 38 (see FIG. 6). The diameter of the second hole portion 38b is larger than the diameter of the second shaft portion 51e. Moreover, the diameter of the 2nd axial part 51e is smaller than the minimum dimension of the part (surface) in which the 2nd axial part 51e was formed in the main-body part 51a.

  As described above, each of the first shaft portion 51d and the second shaft portion 51e is smaller than the minimum dimension of the portion (surface) formed on the main body portion 51a. For this reason, the main body 51 a is prevented from being detached by the plate main body 37 and the pendulum holding part 38. The diameter of the first shaft portion 51d and the diameter of the second shaft portion 51e are smaller than the diameter of the first hole portion 37d and the diameter of the second hole portion 38b. For this reason, it is rotatable with respect to the plate main body portion 37 and the pendulum holding portion 38.

  The adjustment spring 52 elastically connects the driven plate 32 and the pendulum unit 60. Specifically, the adjustment spring 52 elastically connects the mounting portion 51 and the pendulum unit 60.

  As shown in FIG. 4, the adjustment spring 52 is, for example, a torsion spring. The adjustment spring 52 is disposed between the mounting portion 51 and the pendulum unit 60 in the circumferential direction. Specifically, the adjustment spring 52 is disposed between the mounting portion 51 and the swing plate 61 of the pendulum unit 60 in a compressed state in a state where the swing plate 61 is disposed at the neutral position.

  Further, in the two adjustment springs 52 disposed on both sides of the mounting portion 51 in the circumferential direction, one end portion of one adjustment spring 52 is disposed on the outer peripheral portion of the first spring support portion 51 b of the mounting portion 51. . The other end of the adjustment spring 52 is disposed in the spring holding portion 63 (recess 63a) of the swinging plate 61 facing the first spring support portion 51b in the circumferential direction.

  Further, in the two adjustment springs 52 disposed on both sides of the mounting portion 51 in the circumferential direction, one end portion of the other adjustment spring 52 is disposed on the outer peripheral portion of the second spring support portion 51 c of the mounting portion 51. . The other end of the adjustment spring 52 is disposed in the spring holding portion 63 (concave portion 63a) of the swinging plate 61 facing the second spring support portion 51c in the circumferential direction.

  Thus, two adjustment springs 52 adjacent in the circumferential direction are supported by one mounting portion 51, and two swing plates 61 adjacent in the circumferential direction are connected to the mounting portion 51. Yes. In other words, the two adjustment springs 52 elastically connect the swing plate 61 and the driven plate 32 (the plate main body portion 37 and the pendulum holding portion 38) via the mounting portion 51.

[Operation]
In the low engine speed region, the piston 30 moves to the transmission side due to the pressure difference between the hydraulic oils on both sides of the piston 30 in the axial direction. That is, the friction facing 29 is separated from the front cover 2 and the lock-up is released. When the lockup is released, torque from the front cover 2 is transmitted from the impeller 5 to the turbine 6 via hydraulic oil.

  When the speed ratio of the torque converter 1 increases and the engine speed reaches a certain speed, the hydraulic oil on the engine side of the piston 30 is discharged. As a result, the piston 30 is moved to the front cover 2 side, and the friction facing 29 is pressed against the friction surface of the front cover 2. As a result, the torque of the front cover 2 is transmitted to the torsion spring 35 on the inner peripheral side via the piston 30 and the drive plate 31. Further, the torque transmitted to the inner peripheral side torsion spring 35 is transmitted to the outer peripheral side torsion spring 36 via the intermediate plate 41. The torque output from the outer peripheral torsion spring 36 is transmitted to the turbine hub 18 via the driven plate 32.

  The two torsion springs 36 on the outer peripheral side are connected by a float member 47. For this reason, these outer peripheral side torsion springs 36 are operated in series by the float member 47.

  In this way, the front cover 2 is mechanically coupled to the turbine hub 18 by the operation of the lockup device 4. That is, the torque of the front cover 2 is directly output to the input shaft of the transmission via the turbine 6.

  Here, when the engine torque fluctuates, the vibration is absorbed by the expansion and contraction of the torsion spring 33 (the inner peripheral side torsion spring 35 and the outer peripheral side torsion spring 36) and the hysteresis torque of each part. Further, when torque fluctuation occurs, as shown in FIG. 5, the large diameter portion 62a of the pin member 62 moves along the third guide groove portion 64 (third groove 64a) of the swing plate 61, and the pin The small diameter portion 62b of the member 62 swings along the first guide groove portion 39 (first groove 39a; see FIG. 3) and the second guide groove portion 40 (second groove 68a; see FIG. 4) of the driven plate 32. Move. As a result, the swing plate 61 swings with respect to the driven plate 32. That is, the pendulum unit 60 swings with respect to the driven plate 32. By this swinging, the torque fluctuation output from the outer peripheral side torsion spring 36, that is, the vibration input to the driven plate 32 is suppressed.

  Further, when the pendulum unit 60 swings as described above, the pendulum adjustment unit 50 operates. For example, as shown in FIG. 5, when the pendulum unit 60 swings substantially in the first circumferential direction (counterclockwise direction), the adjustment spring 52R on the right side of each pendulum adjustment unit 50 is compressed, and each pendulum adjustment The adjustment spring 52 on the left side of the unit 50 extends. At this time, the main body 51a of each pendulum unit 60 rotates in the counterclockwise direction with reference to the axis of the first shaft 51d and the second shaft 51e.

  On the other hand, when the pendulum unit 60 swings substantially in the second circumferential direction (clockwise direction opposite to FIG. 5), the adjustment spring 52R on the right side of each pendulum adjustment unit 50 extends, and the pendulum adjustment unit 50 The left adjustment spring 52L is compressed. At this time, the main body 51a of each pendulum unit 60 rotates in the clockwise direction with reference to the axis of the first shaft 51d and the second shaft 51e.

  Thus, the swing range of the pendulum unit 60 is adjusted by operating the pendulum adjustment unit 50. Further, the swing timing and swing speed of the pendulum unit 60 are adjusted by this operation. Thereby, the response to the vibration of the driven plate 32 is adjusted.

[Characteristic]
(1) The dynamic vibration absorber 100 includes the driven plate 32, the pendulum unit 60, and the pendulum adjustment unit 50. The driven plate 32 can rotate around the rotation center O. The pendulum unit 60 attenuates the vibration of the driven plate 32 by moving relative to the driven plate 32 when the driven plate 32 rotates. The pendulum adjustment unit 50 elastically connects the driven plate 32 and the pendulum unit 60 to adjust the movement of the pendulum unit 60.

  In the dynamic vibration absorber 100, the vibration of the driven plate 32 can be attenuated by moving the pendulum unit 60 relative to the driven plate 32 when the driven plate 32 rotates. The pendulum unit 60 moves relative to the driven plate 32, and the pendulum adjustment unit 50 elastically connects the pendulum unit 60 to the driven plate 32. That is, the pendulum adjustment unit 50 operates in the same rotating system as the driven plate 32 together with the pendulum unit 60. Thereby, the pendulum adjustment unit 50 can adjust the movement of the pendulum unit 60 relative to the driven plate 32. As described above, in the dynamic vibration absorber 100, the response to the vibration of the driven plate 32 can be easily adjusted by the pendulum adjustment unit 50 adjusting the movement of the pendulum unit 60.

  On the other hand, in the dynamic vibration absorber 100, since the pendulum adjustment unit 50 elastically connects the pendulum unit 60 to the driven plate 32, the movement amount of the pendulum unit 60 can be adjusted by the pendulum adjustment unit 50. it can. Thereby, the abnormal noise which generate | occur | produces when the pendulum unit 60 buffers to another member, for example, the driven plate 32, can be reduced. That is, in the dynamic vibration absorber 100, the generation of abnormal noise due to the swing plate 61 of the pendulum unit 60 can be reduced.

  (2) In the dynamic vibration absorber 100 described above, the swing plate 61 of the pendulum unit 60 swings with respect to the driven plate 32 with a position different from the rotation center O as the swing center.

  In this case, the swing plate 61 of the pendulum unit 60 swings based on the swing center. This swing center is different from the rotation center of the driven plate 32. As described above, the swing plate 61 of the pendulum unit 60 swings based on the swing center different from the rotation center of the driven plate 32, so that the vibration of the driven plate 32 is attenuated at a wide frequency range. Can do.

  (3) In the dynamic vibration absorber 100 described above, the pendulum adjustment unit 50 is an adjustment spring that elastically connects the mounting portion 51 mounted on the driven plate 32 and the mounting portion 51 and the swing plate 61 of the pendulum unit 60. 52.

  In this case, in the pendulum adjustment unit 50, the mounting portion 51 is mounted on the driven plate 32, and the adjustment spring 52 elastically connects the mounting portion 51 and the swing plate 61 of the pendulum unit 60. By configuring the pendulum adjustment unit 50 in this way, the driven plate 32 and the swing plate 61 of the pendulum unit 60 can be easily connected.

  (4) In the dynamic vibration damping device 100 described above, the mounting portion 51 is rotatably mounted on the driven plate 32.

  In this case, since the mounting portion 51 is rotatably mounted on the driven plate 32, the mounting portion 51 can be rotated with respect to the driven plate 32 in accordance with the swing of the swing plate 61 of the pendulum unit 60. it can. Thereby, the adjustment spring 52 can be maintained between the mounting portion 51 and the swing plate 61 of the pendulum unit 60 in a suitable posture. That is, the swing of the swing plate 61 of the pendulum unit 60 can be suitably adjusted by the pendulum adjustment unit 50.

  (5) In the dynamic vibration absorber 100 described above, the swing plates 61 of the plurality of pendulum units 60 are arranged side by side in the rotational direction and are mounted on the driven plate 32 so as to be swingable. The pendulum adjustment unit 50 is disposed between the swing plates 61 of the pendulum units 60 adjacent in the rotation direction, and connects the driven plate 32 and the swing plate 61 of the pendulum unit 60.

  In this case, each of the swing plates 61 of the plurality of pendulum units 60 is arranged side by side in the rotational direction with respect to the driven plate 32 and mounted so as to be swingable, so that the vibration of the driven plate 32 is stably attenuated. can do. Further, since the pendulum adjustment unit 50 is disposed between the swing plates 61 of the pendulum units 60 adjacent in the rotation direction, the swing of the swing plates 61 of the plurality of pendulum units 60 is stably adjusted. be able to.

  (6) In the dynamic vibration absorber 100 described above, the driven plate 32 includes the first guide groove portion 39 and the second guide groove portion 40. When the driven plate 32 rotates, the swing plate 61 of the pendulum unit 60 swings with reference to the first guide groove 39 and the second guide groove 40. Thereby, the swing plate 61 of the pendulum unit 60 can be stably swung. That is, the response to the vibration of the driven plate 32 can be stably adjusted by the swing plate 61 of the pendulum unit 60.

  (7) The dynamic vibration absorber 100 further includes a pin member 62 that supports the swing plate 61 of the pendulum unit 60 so as to swing relative to the driven plate 32. By engaging the pin member 62 with the first guide groove portion 39 and the second guide groove portion 40, the swing plate 61 of the pendulum unit 60 swings with reference to the first guide groove portion 39 and the second guide groove portion 40. .

  In this case, the pin member 62 supports the swing plate 61 of the pendulum unit 60 so as to be swingable with respect to the driven plate 32, and engages with the first guide groove portion 39 and the second guide groove portion 40. As a result, a configuration in which the swing plate 61 of the pendulum unit 60 swings with respect to the driven plate 32 can be easily realized.

  (8) In the dynamic vibration absorber 100 described above, the driven plate 32 includes the plate main body portion 37 and the pendulum holding portion 38 that is disposed to face the plate main body portion 37 in the axial direction. The swing plate 61 of the pendulum unit 60 is disposed between the plate main body portion 37 and the pendulum holding portion 38.

  In this case, since the swing plate 61 of the pendulum unit 60 is disposed between the plate main body portion 37 and the pendulum holding portion 38, the swing plate 61 of the pendulum unit 60 is moved to the driven plate 32 (the plate main body portion 37 and the pendulum). The holding unit 38) can be operated stably.

  (9) In the dynamic vibration absorber 100 described above, the pendulum adjustment unit 50 includes the mounting portion 51 that is mounted on at least one of the plate main body portion 37 and the pendulum holding portion 38, and the swinging of the mounting portion 51 and the pendulum unit 60. And an adjustment spring 52 that elastically connects the plate 61. The mounting portion 51 is disposed between the plate main body portion 37 and the pendulum holding portion 38.

  In this case, since the mounting portion 51 is disposed between the plate main body portion 37 and the pendulum holding portion 38, the mounting portion 51 is securely attached to at least one of the plate main body portion 37 and the pendulum holding portion 38. Can be positioned and mounted.

  (10) The lockup device 4 of the torque converter 1 is for transmitting torque from the front cover 2 to the turbine 6 of the torque converter 1. The lockup device 4 includes a driven plate 32, a clutch portion including a piston 30 and a friction facing 29, a driven plate 32, a torsion spring 33, a pendulum unit 60, and a pendulum adjustment unit 50. The clutch portions 30 and 29 are disposed between the front cover 2 and the driven plate 32. The driven plate 32 is connected to the turbine 6 and is rotatable relative to the driven plate 32. The torsion spring 33 elastically connects the driven plate 32 and the driven plate 32 in the rotational direction. The pendulum unit 60 attenuates the vibration of the driven plate 32 by moving relative to the driven plate 32 when the driven plate 32 rotates. The pendulum adjustment unit 50 elastically connects the driven plate 32 and the pendulum unit 60 to adjust the movement of the pendulum unit 60.

  Since the lock-up device of the torque converter 1 includes the configuration of the dynamic vibration absorber 100 described above, the same effect as the above effect can be obtained.

[Other Embodiments]
The present invention is not limited to the above-described embodiments, and various changes or modifications can be made without departing from the scope of the present invention.

  (A) In the above-described embodiment, an example in which the dynamic vibration absorber 100 (32, 34 (44, 42), 99) is used as a lockup device of the torque converter 1 has been described. May be used for other devices. For example, the dynamic vibration absorber 100 may be applied to a two-mass flywheel disposed between the engine and the clutch.

  (B) In the above-described embodiment, an example in which the swing plate 61 is connected to the driven plate 32 by two pin members 62 has been shown. However, the swing plate 61 can be moved by using one pin member 62. It may be connected to the driven plate 32. In this case, one first to third groove 64 a is provided in the swing plate 61.

  (C) In the above embodiment, an example in which the adjustment spring 52 is a torsion spring has been described. However, another elastic member may be used for the adjustment spring 52.

  (D) In the above embodiment, when the pendulum unit 60 is in the neutral state, the adjustment spring 52 is disposed between the mounting portion 51 and the pendulum unit 60 (the swing plate 61) in a compressed state. An example of the case is shown. Instead of this, the adjustment spring 52 may be disposed between the mounting portion 51 and the pendulum unit 60 (the swing plate 61) in a stretched state.

  (E) In the above-described embodiment, as shown in FIG. 7A, the dynamic vibration absorber 100 includes a driven plate 32 (an example of a rotating member), a pendulum unit 60 (an example of a mass unit), and a pendulum adjustment unit 50 (an adjustment unit). The example in the case where it is comprised from this is shown. Instead, as shown in FIG. 7B, the dynamic vibration absorber 200 includes an intermediate plate 41 (an example of a rotating member and an example of an intermediate member), a pendulum unit 60 (an example of a mass unit), and a pendulum adjustment unit 50 (adjustment). For example). In FIG. 7B, members having the same configuration as in the above embodiment are given the same reference numerals.

  In this case, the pendulum unit 60 and the pendulum adjustment unit 50 described above are mounted on the intermediate plate 41. Thereby, the response to the vibration of the intermediate plate 41 can be easily adjusted. In addition, the generation of abnormal noise due to the swing plate 61 of the pendulum unit 60 can be reduced.

DESCRIPTION OF SYMBOLS 1 Torque converter 29 Friction facing 30 Piston 31 Drive plate 32 Driven plate 33 Torsion spring 37 Plate main-body part 38 Pendulum holding part 39 1st guide groove part 40 2nd guide groove part 50 Pendulum adjustment unit 51 Mounting part 52 Adjustment spring 60 Pendulum unit 61 Swing Moving plate 62 Pin member O Center of rotation

Claims (10)

A vibration absorber for an automobile for attenuating vibration transmitted from an engine to a transmission,
A rotating member rotatable around the center of rotation;
A plurality of mass parts for attenuating vibration of the rotating member by moving relative to the rotating member during rotation of the rotating member;
An adjustment unit having an elastic part disposed between the plurality of mass parts, and adjusting the movement of the mass part by the elastic part;
With
The mass part has a holding part for holding the elastic part,
The adjustment unit further includes a mounting unit mounted on the rotating member,
The elastic part elastically connects the mounting part and the mass part,
The mounting portion is configured separately from the elastic portion, and is rotatably mounted on the rotating member.
Dynamic vibration absorber for automobiles. The elastic part elastically connects the rotating member and the mass part,
The dynamic vibration absorber for automobiles according to claim 1. The mass portion swings relative to the rotating member with a position different from the rotation center as a swing center;
The dynamic vibration absorber for automobiles according to claim 1 or 2. Each of the plurality of mass portions is arranged in a rotational direction with respect to the rotating member and is swingably mounted.
The adjustment unit is disposed between the mass units adjacent to each other in the rotation direction, and connects the rotation member and the mass unit.
The dynamic vibration absorber for automobiles according to any one of claims 1 to 3. The rotating member has a guide portion,
The mass portion attenuates vibration of the rotating member by swinging with respect to the guide portion.
The dynamic vibration absorber for automobiles according to any one of claims 1 to 4. A support portion that supports the mass portion so as to be swingable with respect to the rotating member;
Further comprising
By engaging the support portion with the guide portion, the mass portion swings with respect to the guide portion.
The automobile dynamic vibration absorber according to claim 5. The rotating member includes a first rotating member and a second rotating member arranged to face the first rotating member in the axial direction,
The mass portion is disposed between the first rotating member and the second rotating member.
The dynamic vibration absorber for automobiles according to any one of claims 1 to 6. The adjusting unit includes a mounting unit that is mounted on at least one of the first rotating member and the second rotating member, and the elastic unit that elastically connects the mounting unit and the mass unit. And
The mounting portion is disposed between the first rotating member and the second rotating member.
The dynamic vibration absorber for automobiles according to claim 7. A lockup device for transmitting torque from a front cover to a turbine of a torque converter,
An input rotating member;
A clutch portion disposed between the front cover and the input rotation member;
An output rotating member coupled to the turbine and rotatable relative to the input rotating member;
An elastic member that elastically connects the input rotation member and the output rotation member in a rotation direction;
A plurality of mass parts for attenuating vibration of the output rotating member by moving relative to the output rotating member during rotation of the output rotating member;
An adjustment unit having an elastic part disposed between the plurality of mass parts, and adjusting the movement of the mass part by the elastic part;
With
The mass part has a holding part for holding the elastic part,
The adjustment unit further includes a mounting unit that is mounted on the output rotating member,
The elastic part elastically connects the mounting part and the mass part,
The mounting portion is configured separately from the elastic portion, and is rotatably mounted on the output rotation member.
Torque converter lockup device. A lockup device for transmitting torque from a front cover to a turbine of a torque converter,
An input rotating member;
A clutch portion disposed between the front cover and the input rotation member;
An output rotating member coupled to the turbine and rotatable relative to the input rotating member;
A plurality of elastic members that elastically connect the input rotating member and the output rotating member in the rotation direction and have a first elastic member and a second elastic member;
An intermediate member that connects the first elastic member and the elastic member in series;
A plurality of mass parts for attenuating vibration of the intermediate member by moving relative to the intermediate member during rotation of the intermediate member ;
An adjustment unit having an elastic part disposed between the plurality of mass parts, and adjusting the movement of the mass part by the elastic part;
With
The mass part has a holding part for holding the elastic part,
The adjustment portion further includes a mounting portion to be mounted on the intermediate member,
The elastic part elastically connects the mounting part and the mass part,
The mounting portion is configured separately from the elastic portion and is rotatably mounted on the intermediate member.
Torque converter lockup device.

Images