JP2012141019A - Centrifugation pendulum vibration absorbing device - Google Patents
Centrifugation pendulum vibration absorbing device Download PDFInfo
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- JP2012141019A JP2012141019A JP2010294404A JP2010294404A JP2012141019A JP 2012141019 A JP2012141019 A JP 2012141019A JP 2010294404 A JP2010294404 A JP 2010294404A JP 2010294404 A JP2010294404 A JP 2010294404A JP 2012141019 A JP2012141019 A JP 2012141019A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
- F16F15/1407—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
- F16F15/145—Masses mounted with play with respect to driving means thus enabling free movement over a limited range
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means
- F16H2045/0263—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means the damper comprising a pendulum
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Abstract
Description
本発明は、回転要素に対して同軸に取り付けられる支持部材と、それぞれ支持部材に揺動自在に連結されると共に周方向に隣り合う複数の質量体とを備える遠心振子式吸振装置に関する。 The present invention relates to a centrifugal pendulum vibration absorber that includes a support member that is coaxially attached to a rotating element, and a plurality of mass bodies that are swingably connected to the support member and that are adjacent to each other in the circumferential direction.
従来、この種の遠心振子式吸振装置として、流体伝動装置のタービンランナに対して同軸に取り付けられる支持部材と、それぞれ支持ローラを介して支持部材に連結されると共に当該支持部材に対して揺動可能な複数の振子マス（質量体）を含むものが知られている（例えば、特許文献１参照）。この遠心振子式吸振装置の振子マスは、フランジ状の支持部材の表面側に配置される錘と裏面側に配置される錘とを支持ローラにより連結することにより構成される。また、この種の遠心振子式吸振装置としては、フランジ状の支持部材に複数のアーム部材を介して揺動自在に連結される錘からなる振子マスを備えるものも知られている（例えば、特許文献２参照）。 Conventionally, as this type of centrifugal pendulum type vibration absorber, a support member that is coaxially attached to a turbine runner of a fluid transmission device, and is connected to the support member via a support roller and swings with respect to the support member. The thing containing several possible pendulum mass (mass body) is known (for example, refer patent document 1). The pendulum mass of the centrifugal pendulum type vibration absorber is configured by connecting a weight disposed on the front surface side of the flange-shaped support member and a weight disposed on the back surface side by a support roller. Further, as this type of centrifugal pendulum type vibration absorber, there is also known one having a pendulum mass composed of a weight that is swingably connected to a flange-shaped support member via a plurality of arm members (for example, a patent) Reference 2).
上述のような遠心振子式吸振装置では、各質量体の重量を大きくするほど支持部材に伝達される振動をより効果的に減衰させることができる。しかしながら、遠心振子式吸振装置の各質量体の重量を大きくしようとすると基本的に質量体を大型化せざるを得ず、上記特許文献１および２に記載の遠心振子式吸振装置において錘を大型化すると、遠心振子式吸振装置の軸長が増加してしまうおそれがある。また、上記特許文献１および２に記載の遠心振子式吸振装置において錘を大型化すると、互いに隣り合う振子マス間のクリアランスが小さくなってしまい、例えば支持部材の回転数が比較的低く質量体の挙動が不安定になりがちなときに、互いに隣り合う質量体同士が接近して両者の端部同士が衝突し、異音の発生を招くおそれがある。 In the centrifugal pendulum vibration absorber as described above, the vibration transmitted to the support member can be attenuated more effectively as the weight of each mass body is increased. However, when trying to increase the weight of each mass body of the centrifugal pendulum type vibration absorber, the mass body is basically increased in size, and the centrifugal pendulum type vibration absorber described in Patent Documents 1 and 2 has a large weight. If this is the case, the axial length of the centrifugal pendulum type vibration absorber may increase. In addition, when the weight is increased in the centrifugal pendulum type vibration absorbers described in Patent Documents 1 and 2, the clearance between the pendulum masses adjacent to each other becomes small. For example, the rotational speed of the support member is relatively low, When the behavior tends to become unstable, the mass bodies adjacent to each other approach each other and the ends of both collide with each other, which may cause an abnormal noise.
そこで、本発明は、互いに隣り合う質量体同士の衝突や当該衝突に起因した異音の発生を抑制しつつ質量体の重量を確保することができるコンパクトな遠心振子式吸振装置の提供を主目的とする。 Therefore, the main object of the present invention is to provide a compact centrifugal pendulum type vibration absorber capable of securing the weight of the mass body while suppressing the collision between the mass bodies adjacent to each other and the generation of noise caused by the collision. And
本発明の遠心振子式吸振装置は、上述の主目的を達成するために以下の手段を採っている。 The centrifugal pendulum type vibration absorber of the present invention employs the following means in order to achieve the main object described above.
本発明の遠心振子式吸振装置は、
回転要素に対して同軸に取り付けられる支持部材と、それぞれ前記支持部材に揺動自在に連結されると共に周方向に隣り合う複数の質量体とを備える遠心振子式吸振装置において、
前記複数の質量体の各々は、アーム部材を介して前記支持部材に揺動自在に連結される錘からなり、
互いに隣り合う２つの質量体の一方を第１質量体とすると共に他方を第２質量体としたときに、前記第１質量体を構成する錘の少なくとも前記第２質量体側の端部には間隙が形成され、
前記第１質量体と前記第２質量体とが互いに接近するように前記支持部材に対して移動したときに、前記第２質量体を構成する錘が前記第１質量体の前記間隙と遊嵌することを特徴とする。
The centrifugal pendulum vibration absorber of the present invention is
In a centrifugal pendulum type vibration absorber provided with a support member that is coaxially attached to a rotating element, and a plurality of mass bodies that are swingably connected to the support member and are adjacent to each other in the circumferential direction,
Each of the plurality of mass bodies includes a weight that is swingably connected to the support member via an arm member,
When one of the two mass bodies adjacent to each other is the first mass body and the other is the second mass body, there is a gap at least at the end on the second mass body side of the weight constituting the first mass body. Formed,
When the first mass body and the second mass body move relative to the support member so as to approach each other, the weight constituting the second mass body is loosely fitted to the gap of the first mass body It is characterized by doing.
この遠心振子式吸振装置の各質量体は、アーム部材を介して支持部材の軸方向に対向し合うと共に互いに連結される錘からなる。更に、互いに隣り合う２つの質量体の一方を第１質量体とすると共に他方を第２質量体としたときに、第１質量体を構成する錘の少なくとも第２質量体側の端部には間隙が形成される。そして、第１質量体と第２質量体とが互いに接近するように支持部材に対して移動したときに、第２質量体を構成する錘が第１質量体の間隙と遊嵌する。これにより、互いに隣り合う質量体間のクリアランスが小さくなったとしても、質量体の挙動が不安定になって互いに隣り合う質量体同士が接近したときに当該質量体同士が衝突するのを抑制することができる。従って、質量体の重量を確保するために当該質量体を周方向に大型化することが可能となり、遠心振子式吸振装置の軸長や外径の増加を抑制することができる。この結果、互いに隣り合う質量体同士の衝突や当該衝突に起因した異音の発生を抑制しつつ質量体の重量を確保することができるコンパクトな遠心振子式吸振装置の実現が可能となる。 Each mass body of the centrifugal pendulum vibration absorber is composed of weights that face each other in the axial direction of the support member via the arm member and are connected to each other. Further, when one of the two mass bodies adjacent to each other is the first mass body and the other is the second mass body, at least the end of the weight constituting the first mass body on the second mass body side is a gap. Is formed. Then, when the first mass body and the second mass body move relative to the support member so as to approach each other, the weight constituting the second mass body loosely fits in the gap of the first mass body. As a result, even if the clearance between the mass bodies adjacent to each other becomes small, the behavior of the mass bodies becomes unstable and the mass bodies are prevented from colliding with each other when the mass bodies adjacent to each other approach each other. be able to. Therefore, in order to ensure the weight of the mass body, the mass body can be enlarged in the circumferential direction, and an increase in the axial length and outer diameter of the centrifugal pendulum vibration absorber can be suppressed. As a result, it is possible to realize a compact centrifugal pendulum type vibration absorber that can secure the weight of the mass body while suppressing the collision between the mass bodies adjacent to each other and the generation of abnormal noise caused by the collision.
また、前記複数の質量体の各々は、前記アーム部材を介して前記支持部材の軸方向に対向し合うと共に互いに連結される２つの錘からなるものであってもよく、前記第１質量体を構成する２つの錘は、前記第２質量体側の端部に間隙を形成してもよく、前記第１質量体と前記第２質量体とが互いに接近するように前記支持部材に対して移動したときに、前記第２質量体を構成する２つの錘の一方の前記第１質量体側の端部が前記第１質量体の前記間隙と遊嵌してもよい。これにより、第２質量体側の端部に間隙を有する第１質量体と、当該第１質量体の間隙と遊嵌可能な第２質量体とを容易に構成可能となる。 Each of the plurality of mass bodies may include two weights that face each other in the axial direction of the support member via the arm member and are connected to each other. Two constituent weights may form a gap at an end portion on the second mass body side, and move relative to the support member so that the first mass body and the second mass body approach each other. Sometimes, one end of the two masses constituting the second mass body on the first mass body side may be loosely fitted with the gap of the first mass body. Accordingly, it is possible to easily configure the first mass body having a gap at the end on the second mass body side and the second mass body that can be loosely fitted to the gap of the first mass body.
更に、前記支持部材には、前記アーム部材と当接して前記質量体の揺動範囲を規定するストッパ部が形成されてもよい。これにより、アーム部材周辺の空いたスペースに部品点数を増やすことなくストッパ部を設けることが可能となる。 Further, the support member may be formed with a stopper portion that contacts the arm member and defines a swing range of the mass body. Thereby, it becomes possible to provide a stopper part in the vacant space around the arm member without increasing the number of parts.
また、前記複数の質量体のすべてが同一の重量を有すると共に、前記第１質量体と前記第２質量体とが互いに異なる構造を有してもよい。この場合、支持部材に対して１つおきに同一構造の質量体が配設されることになり、個々の質量体を基本的に左右対称の構造を有するものとすることができる。これにより、個々の質量体をバランスのよいものとして遠心振子式吸振装置の吸振性能を向上させることが可能となる。 Further, all of the plurality of mass bodies may have the same weight, and the first mass body and the second mass body may have different structures. In this case, every other mass body with the same structure is disposed with respect to the support member, and each mass body can basically have a symmetrical structure. Thereby, it becomes possible to improve the vibration absorption performance of the centrifugal pendulum vibration absorber by making each mass body well balanced.
更に、前記複数の質量体のすべてが同一の構造および重量を有してもよい。このように、複数の質量体のすべてを同一の構造および重量を有するものとすれば、遠心振子式吸振装置における部品の種類を減らして遠心振子式吸振装置を低コスト化することが可能となる。 Further, all of the plurality of mass bodies may have the same structure and weight. Thus, if all the mass bodies have the same structure and weight, it is possible to reduce the cost of the centrifugal pendulum vibration absorber by reducing the types of parts in the centrifugal pendulum vibration absorber. .
また、前記第１質量体の前記第２質量体側の端部と前記第２質量体の前記第１質量体側の端部とは、常に前記軸方向からみて重なっていてもよい。このように、第１質量体の第２質量体側の端部と第２質量体の第１質量体側の端部とを常に軸方向からみて重ならせることで、第１質量体と第２質量体とが衝突するのをより確実に抑制すると共に、各質量体をそれぞれ周方向に更に拡大して各質量体の重量をより増加させることが可能となる。 The end of the first mass body on the second mass body side and the end of the second mass body on the first mass body side may always overlap each other when viewed from the axial direction. In this way, the first mass body and the second mass are obtained by always overlapping the end portion of the first mass body on the second mass body side and the end portion of the second mass body on the first mass body side as viewed from the axial direction. It is possible to more reliably suppress the collision with the body and further increase the weight of each mass body by further expanding each mass body in the circumferential direction.
そして、前記支持部材は、原動機に連結される入力部材と変速装置の入力軸との間に配置されるダンパ機構の回転要素の何れかに接続されてもよい。これにより、入力部材と変速装置の入力軸との間で振動を遠心振子式吸振装置により減衰して当該振動が変速装置へと伝達されるのを良好に抑制することが可能となる。 The support member may be connected to any one of the rotating elements of the damper mechanism disposed between the input member coupled to the prime mover and the input shaft of the transmission. As a result, it is possible to satisfactorily suppress the vibration transmitted between the input member and the input shaft of the transmission from being attenuated by the centrifugal pendulum type vibration absorber and transmitted to the transmission.
次に、本発明を実施するための形態を実施例を用いて説明する。 Next, the form for implementing this invention is demonstrated using an Example.
図１は、本発明の実施例に係る遠心振子式吸振装置２０を含む流体伝動装置１の概略構成図である。同図に示す流体伝動装置１は、原動機としてのエンジン（内燃機関）を備えた車両に発進装置として搭載されるトルクコンバータであり、図示しないエンジンのクランクシャフトに連結されるフロントカバー（入力部材）３と、フロントカバー３に固定されたポンプインペラ（入力側流体伝動要素）４と、ポンプインペラ４と同軸に回転可能なタービンランナ（出力側流体伝動要素）５と、タービンランナ５からポンプインペラ４への作動油（作動流体）の流れを整流するステータ６と、図示しない自動変速機（ＡＴ）あるいは無段変速機（ＣＶＴ）である変速装置のインプットシャフト（入力軸）に固定されるダンパハブ（出力部材）７と、ダンパハブ７に接続されたダンパ機構８と、例えばダンパ機構８に接続された図示しないロックアップピストンを有する単板摩擦式のロックアップクラッチ機構９とを含む。 FIG. 1 is a schematic configuration diagram of a fluid transmission device 1 including a centrifugal pendulum vibration absorber 20 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 (input side fluid transmission element) 4 fixed to the front cover 3, a turbine runner (output side fluid transmission element) 5 that can rotate coaxially with the pump impeller 4, and a pump impeller 4 from the turbine runner 5. A stator 6 that rectifies the flow of hydraulic oil (working fluid) to the motor, and a damper hub (fixed to an input shaft (input shaft) of a transmission that is an automatic transmission (AT) or a continuously variable transmission (CVT) (not shown)). Output member) 7, a damper mechanism 8 connected to the damper hub 7, and a locker (not shown) connected to the damper mechanism 8, for example. And a lock-up clutch mechanism 9 a single-plate friction type having Pupisuton.
ポンプインペラ４とタービンランナ５とは、互いに対向し合い、両者の間には、ポンプインペラ４やタービンランナ５と同軸に回転可能なステータ６が配置される。ステータ６の回転方向は、ワンウェイクラッチ６１により一方向のみに設定される。これらのポンプインペラ４、タービンランナ５およびステータ６は、作動油を循環させるトーラス（環状流路）を形成する。ただし、流体伝動装置１は、ポンプインペラ４、タービンランナ５およびステータ６を備えたトルクコンバータとして構成されるが、流体伝動装置１は、ステータを有さない流体継手として構成されてもよい。 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 rotation direction of the stator 6 is set to 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. However, although the fluid transmission device 1 is configured as a torque converter including the pump impeller 4, the turbine runner 5, and the stator 6, the fluid transmission device 1 may be configured as a fluid coupling that does not have a stator.
ダンパ機構８は、ロックアップクラッチ機構９のロックアップピストンに固定される入力要素としてのドライブ部材８０と、複数の第１コイルスプリング（第１弾性体）８１と、第１コイルスプリング８１を介してドライブ部材８０と係合する中間部材（中間要素）８３と、第１コイルスプリング８１よりも高い剛性（バネ定数）を有すると共に第１コイルスプリング８１から流体伝動装置１の径方向に離間して配置される複数の第２コイルスプリング（第２弾性体）８２と、第２コイルスプリング８２を介して中間部材８３と係合すると共にダンパハブ７に固定されるドリブン部材（出力要素）８４とを有する。ロックアップクラッチ機構９は、図示しない油圧制御ユニットからの油圧により動作するものであり、ダンパ機構８を介してフロントカバー３とダンパハブ７とを連結するロックアップを実行すると共に当該ロックアップを解除することができる。ただし、流体伝動装置１は、単板摩擦式のロックアップクラッチ機構９の代わりに、多板摩擦式のロックアップクラッチ機構を含むものであってもよい。 The damper mechanism 8 includes a drive member 80 as an input element fixed to the lockup piston of the lockup clutch mechanism 9, a plurality of first coil springs (first elastic bodies) 81, and a first coil spring 81. An intermediate member (intermediate element) 83 that engages with the drive member 80 and a rigidity (spring constant) that is higher than that of the first coil spring 81 and are spaced apart from the first coil spring 81 in the radial direction of the fluid transmission device 1. A plurality of second coil springs (second elastic bodies) 82, and a driven member (output element) 84 that engages with the intermediate member 83 via the second coil springs 82 and is fixed to the damper hub 7. The lock-up clutch mechanism 9 is operated by hydraulic pressure from a hydraulic control unit (not shown), executes lock-up for connecting the front cover 3 and the damper hub 7 via the damper mechanism 8 and releases the lock-up clutch mechanism 9. be able to. However, the fluid transmission device 1 may include a multi-plate friction type lock-up clutch mechanism instead of the single-plate friction type lock-up clutch mechanism 9.
上述の流体伝動装置１では、エンジンと変速装置との間の動力伝達効率を向上させてエンジンの燃費をより向上させるために、フロントカバー３に連結されるエンジンの回転数が例えば１０００ｒｐｍ程度と極低いロックアップ回転数Ｎｌｕｐに達した段階でロックアップが実行される。そして、実施例の流体伝動装置１では、ロックアップが実行された後にフロントカバー３とダンパハブ７との間で振動をより良好に減衰して当該振動が後段の変速装置のインプットシャフトへと伝達されるのを抑制するために、ダンパ機構８の中間部材８３に遠心振子式吸振装置２０が接続されている。 In the fluid transmission device 1 described above, in order to improve the power transmission efficiency between the engine and the transmission and to further improve the fuel efficiency of the engine, the rotational speed of the engine coupled to the front cover 3 is about 1000 rpm, for example. The lockup is executed when the low lockup rotation speed Nlup is reached. In the fluid transmission device 1 according to the embodiment, after the lockup is executed, the vibration is better damped between the front cover 3 and the damper hub 7 and the vibration is transmitted to the input shaft of the subsequent transmission. In order to suppress this, the centrifugal pendulum vibration absorber 20 is connected to the intermediate member 83 of the damper mechanism 8.
図２は、遠心振子式吸振装置２０の正面図であり、図３は、遠心振子式吸振装置２０を径方向からみた説明図であり、図４は、遠心振子式吸振装置２０の要部を示す斜視図である。これらの図面に示すように、遠心振子式吸振装置２０は、ダンパ機構８の回転要素である中間部材８３に対して同軸に固定される支持部材２１と、それぞれ支持部材２１に揺動自在に連結されると共に周方向に隣り合う複数（実施例ではそれぞれ２個）の第１質量体２２および第２質量体２３とを含む。 FIG. 2 is a front view of the centrifugal pendulum vibration absorber 20, FIG. 3 is an explanatory view of the centrifugal pendulum vibration absorber 20 viewed from the radial direction, and FIG. It is a perspective view shown. As shown in these drawings, the centrifugal pendulum vibration absorber 20 includes a support member 21 that is coaxially fixed to an intermediate member 83 that is a rotating element of the damper mechanism 8, and is swingably connected to the support member 21. And a plurality of (in the embodiment, two each) first mass bodies 22 and second mass bodies 23 that are adjacent to each other in the circumferential direction.
支持部材２１は、例えば金属板をプレス加工することにより略円環状に形成されており、中央部に例えばダンパハブ７が回転自在に嵌合される嵌合孔２１ａを有すると共に当該嵌合孔２１ａの周囲に形成された複数の連結孔２１ｂを有する。実施例の支持部材２１は、複数の連結孔２１ｂに挿通されるリベット等の締結部材を介してダンパ機構８の中間部材８３に固定され、それにより支持部材２１は、中間部材８３と同軸かつ一体に回転することができる。 The support member 21 is formed in a substantially annular shape by, for example, pressing a metal plate. The support member 21 has a fitting hole 21a in which, for example, the damper hub 7 is rotatably fitted in the center portion, and the fitting hole 21a has a fitting hole 21a. It has a plurality of connecting holes 21b formed around it. The support member 21 of the embodiment is fixed to the intermediate member 83 of the damper mechanism 8 via a fastening member such as a rivet inserted through the plurality of connecting holes 21b, whereby the support member 21 is coaxial and integral with the intermediate member 83. Can be rotated.
第１質量体２２と第２質量体２３とは、同一の重量を有しているが、互いに異なる構造を有する。そして、実施例では、図２に示すように、支持部材２１に対して１つおきに第１質量体２２が配設されると共に１体の第１質量体２２の両隣に第２質量体２３が配設される。すなわち、実施例では、第１質量体２２および第２質量体２３が等間隔（９０°おき）かつ交互に配置され、２体の第１質量体２２が支持部材２１の中心軸に関して対称に配置されると共に２体の第２質量体２３が支持部材２１の中心軸に関して対称に配置される。 The first mass body 22 and the second mass body 23 have the same weight, but have different structures. In the embodiment, as shown in FIG. 2, the first mass bodies 22 are disposed every other support member 21, and the second mass bodies 23 are adjacent to both the first mass bodies 22. Is disposed. That is, in the embodiment, the first mass bodies 22 and the second mass bodies 23 are alternately arranged at equal intervals (every 90 °), and the two first mass bodies 22 are arranged symmetrically with respect to the central axis of the support member 21. In addition, the two second mass bodies 23 are arranged symmetrically with respect to the central axis of the support member 21.
各第１質量体２２は、図２および図３に示すように、支持部材２１の軸方向からみて支持部材２１の外周に沿うように概ね円弧状に湾曲した２枚の同一の金属板（錘）２２１からなり、左右対称の構造を有する。２枚の金属板２２１は、間隔をおいて支持部材２１の軸方向に対向し合うと共に第１質量体２２の長手方向における両方の端部に凹部としての間隙Ｇ（図３参照）が形成されるようにリベット等を介して互いに連結される。第１質量体２２の両方の端部に形成される間隙Ｇは、第１質量体２２の外周側および内周側ならびに当該第１質量体２２を径方向（図２における白抜矢印参照）からみたときの隣の第２質量体２３側に開口する。 As shown in FIGS. 2 and 3, each first mass body 22 includes two identical metal plates (weights) that are curved in a generally arc shape along the outer periphery of the support member 21 when viewed from the axial direction of the support member 21. ) 221 and has a symmetrical structure. The two metal plates 221 face each other in the axial direction of the support member 21 at an interval, and a gap G (see FIG. 3) as a recess is formed at both ends in the longitudinal direction of the first mass body 22. Thus, they are connected to each other through rivets or the like. The gap G formed at both end portions of the first mass body 22 causes the outer circumference side and the inner circumference side of the first mass body 22 and the first mass body 22 from the radial direction (see white arrows in FIG. 2). It opens to the side of the second mass body 23 adjacent when viewed.
２枚の金属板２２１の間には、予め定められた間隔を置いて延在する２本のアーム部材２４の一端部が差し込まれ、２本のアーム部材２４は、それぞれ支軸（ころ）２４ｓを介して２枚の金属板２２１に対して回転自在に連結される。更に、２本のアーム部材２４の他端は、当該２本のアーム部材２４が上記間隔をおいて互いに平行をなすように、それぞれ支軸（ころ）２５ｓを介して支持部材２１に回転自在に連結される。実施例では、支持部材２１に対して軸方向に間隔をおいてアーム支持プレート２５が固定され、２本のアーム部材２４の他端は、支持部材２１とアーム支持プレート２５との間に差し込まれると共に、支軸２５ｓを介して支持部材２１およびアーム支持プレート２５に回転自在に連結される。そして、支持部材２１には、２本のアーム部材２４の両側に位置するように複数のストッパ部２１ｃが形成されている。各ストッパ部２１ｃは、対応する１本のアーム部材２４と当接して当該アーム部材２４に連結された第１質量体２２の揺動範囲を規定する。これにより、各第１質量体２２は、ストッパ部２１ｃにより規定される揺動範囲内で支持部材２１に対して揺動可能となる。 One end of two arm members 24 extending at a predetermined interval is inserted between the two metal plates 221, and each of the two arm members 24 has a support shaft (roller) 24s. The two metal plates 221 are connected to each other in a rotatable manner. Further, the other ends of the two arm members 24 are rotatable to the support member 21 via respective support shafts (rollers) 25 s so that the two arm members 24 are parallel to each other with the gap therebetween. Connected. In the embodiment, the arm support plate 25 is fixed at an interval in the axial direction with respect to the support member 21, and the other ends of the two arm members 24 are inserted between the support member 21 and the arm support plate 25. At the same time, it is rotatably connected to the support member 21 and the arm support plate 25 via the support shaft 25s. The support member 21 is formed with a plurality of stopper portions 21 c so as to be positioned on both sides of the two arm members 24. Each stopper portion 21 c abuts with a corresponding one of the arm members 24 and defines a swing range of the first mass body 22 connected to the arm member 24. Thereby, each 1st mass body 22 becomes rockable with respect to the support member 21 within the rocking | fluctuation range prescribed | regulated by the stopper part 21c.
各第２質量体２３は、図２および図３に示すように、支持部材２１の軸方向からみて支持部材２１の外周に沿うように概ね円弧状に湾曲した１枚の第１金属板（錘）２３１と、当該第１金属板２３１よりも短い周長を有する第２金属板（錘）２３２とからなり、第１質量体２２と同様に左右対称の構造を有する。第１金属板２３１は、第１質量体２２を構成する金属板２２１と概ね同一の平面形状を有し、第１金属板２３１の両方の端部２３１ｅは、図３および図４に示すように、プレス加工等により第１金属板２３１の中央部に対してオフセットされている。第２金属板２３２は、第１金属板２３１の中央部と概ね同一の平面形状を有するように形成されており、当該第１金属板２３１の中央部に対して支持部材２１の軸方向に対向する状態でリベット等を介して連結される。また、第１金属板２３１の両方の端部２３１ｅの厚みは、第１質量体２２の両方の端部に形成される間隙Ｇの幅（軸方向における幅）よりも若干小さく定められている。 As shown in FIGS. 2 and 3, each of the second mass bodies 23 is a single first metal plate (weight) that is curved in a generally arcuate shape along the outer periphery of the support member 21 when viewed from the axial direction of the support member 21. ) 231 and a second metal plate (weight) 232 having a shorter circumference than the first metal plate 231, and has a bilaterally symmetric structure like the first mass body 22. The first metal plate 231 has substantially the same planar shape as the metal plate 221 constituting the first mass body 22, and both end portions 231e of the first metal plate 231 are as shown in FIG. 3 and FIG. The center of the first metal plate 231 is offset by pressing or the like. The second metal plate 232 is formed to have substantially the same planar shape as the central portion of the first metal plate 231, and faces the central portion of the first metal plate 231 in the axial direction of the support member 21. Are connected via rivets or the like. Further, the thicknesses of both end portions 231e of the first metal plate 231 are set to be slightly smaller than the width of the gap G (the width in the axial direction) formed at both end portions of the first mass body 22.
第１金属板２３１と第２金属板２３２との間には、予め定められた間隔を置いて延在する２本のアーム部材２４の一端部が差し込まれ、２本のアーム部材２４は、それぞれ支軸（ころ）２４ｓを介して第１金属板２３１および第２金属板２３２に対して回転自在に連結される。更に、２本のアーム部材２４の他端は、当該２本のアーム部材２４が上記間隔をおいて互いに平行をなすように、それぞれ支軸（ころ）２５ｓを介して支持部材２１およびアーム支持プレート２５に回転自在に連結される。そして、支持部材２１には、２本のアーム部材２４の両側に位置するように複数のストッパ部２１ｃが形成されている。各ストッパ部２１ｃは、対応する１本のアーム部材２４と当接して当該アーム部材２４に連結された第２質量体２３の揺動範囲を規定する。これにより、各第２質量体２３は、ストッパ部２１ｃにより規定される揺動範囲内で支持部材２１に対して揺動可能となる。 One end of two arm members 24 extending at a predetermined interval is inserted between the first metal plate 231 and the second metal plate 232, and the two arm members 24 are respectively It is rotatably connected to the first metal plate 231 and the second metal plate 232 via a support shaft (roller) 24s. Further, the other ends of the two arm members 24 are respectively connected to the support member 21 and the arm support plate via support shafts (rollers) 25 s so that the two arm members 24 are parallel to each other with the gap therebetween. 25 is rotatably connected. The support member 21 is formed with a plurality of stopper portions 21 c so as to be positioned on both sides of the two arm members 24. Each stopper portion 21 c abuts with a corresponding one arm member 24 and defines a swing range of the second mass body 23 connected to the arm member 24. Thereby, each 2nd mass body 23 becomes rockable with respect to the support member 21 within the rocking | fluctuation range prescribed | regulated by the stopper part 21c.
実施例において、第２質量体２３の両方の端部すなわち第１金属板２３１の両方の端部２３１ｅは、図２から図４に示すように、両隣に位置する第１質量体２２の対応する端部に形成された間隙Ｇに遊嵌する。すなわち、第１質量体２２の第２質量体２３側の端部と第２質量体２３の第１質量体２２側の端部とは、支持部材２１の軸方向からみて重なり合う。そして、実施例では、第１質量体２２および第２質量体２３のそれぞれが支持部材２１に対して揺動範囲内でどのように移動したとしても、互いに隣り合う第１質量体２２および第２質量体２３の端部同士が常に支持部材２１の軸方向からみて重なると共に、第１質量体２２および第２質量体２３の端部の端面がリベット等の他の部材と接触しないように金属板２２１、第１および第２金属板２３１，２３２の寸法やリベットの位置等が定められている。 In the embodiment, both end portions of the second mass body 23, that is, both end portions 231 e of the first metal plate 231 correspond to the first mass bodies 22 located on both sides as shown in FIGS. 2 to 4. It fits loosely in the gap G formed at the end. That is, the end portion of the first mass body 22 on the second mass body 23 side and the end portion of the second mass body 23 on the first mass body 22 side overlap with each other when viewed from the axial direction of the support member 21. In the embodiment, the first mass body 22 and the second mass body 23 that are adjacent to each other no matter how the first mass body 22 and the second mass body 23 move within the swing range with respect to the support member 21. The ends of the mass bodies 23 always overlap each other when viewed from the axial direction of the support member 21, and the end faces of the end portions of the first mass body 22 and the second mass body 23 do not come into contact with other members such as rivets. 221, the dimensions of the first and second metal plates 231, 232, the position of the rivet, and the like are determined.
次に、上述のように構成された遠心振子式吸振装置２０の動作について説明する。 Next, the operation of the centrifugal pendulum vibration absorber 20 configured as described above will be described.
流体伝動装置１のロックアップクラッチ機構９によりロックアップが実行されると、図１からわかるように、原動機としてのエンジンからの動力が、フロントカバー３、ロックアップクラッチ機構９、ドライブ部材８０、第１コイルスプリング８１、中間部材８３、第２コイルスプリング８２、ドリブン部材８４、ダンパハブ７という経路を介して変速装置のインプットシャフトへと伝達される。この際、フロントカバー３に入力されるトルクの変動は、主にダンパ機構８の第１および第２コイルスプリング８１，８２により吸収される。更に、実施例の流体伝動装置１では、ロックアップに伴ってロックアップピストンによりフロントカバー３に連結されたダンパ機構８がフロントカバー３と共に回転すると、ダンパ機構８の中間部材８３に連結された支持部材２１も中間部材８３と共に流体伝動装置１の軸周りに回転し、支持部材２１の回転に伴って遠心振子式吸振装置２０を構成する第１質量体２２および第２質量体２３が支持部材２１に対して同方向に揺動することになる。これにより、遠心振子式吸振装置２０から中間部材８３に対して当該中間部材８３の振動（共振）とは逆方向の位相を有する振動を付与し、それによりフロントカバー３とダンパハブ７との間で遠心振子式吸振装置２０によっても振動を吸収（減衰）することが可能となる。 When lockup is executed by the lockup clutch mechanism 9 of the fluid transmission device 1, as can be seen from FIG. 1, the power from the engine as the prime mover is applied to the front cover 3, the lockup clutch mechanism 9, the drive member 80, It is transmitted to the input shaft of the transmission via a path of 1 coil spring 81, intermediate member 83, second coil spring 82, driven member 84, and 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 81 and 82 of the damper mechanism 8. Further, in the fluid transmission device 1 of the embodiment, when the damper mechanism 8 connected to the front cover 3 by the lock-up piston rotates together with the front cover 3 along with the lock-up, the support connected to the intermediate member 83 of the damper mechanism 8 is supported. The member 21 also rotates around the axis of the fluid transmission device 1 together with the intermediate member 83, and the first mass body 22 and the second mass body 23 that constitute the centrifugal pendulum vibration absorber 20 with the rotation of the support member 21 are the support member 21. Will swing in the same direction. As a result, vibration having a phase opposite to that of the vibration (resonance) of the intermediate member 83 is applied from the centrifugal pendulum vibration absorber 20 to the intermediate member 83, thereby causing the front cover 3 and the damper hub 7 to move. The centrifugal pendulum vibration absorber 20 can also absorb (attenuate) vibration.
ただし、上述のように構成される遠心振子式吸振装置２０では、第１質量体２２および第２質量体２３のそれぞれが支持部材２１に対して独立に揺動可能であることから、例えばエンジン（支持部材２１）の回転数が比較的低いときには第１質量体２２および第２質量体２３の挙動が不安定になりがちであり、互いに隣り合う第１質量体２２と第２質量体２３とが逆方向に移動して互いに接近するおそれがある。そして、このように互いに隣り合う第１質量体２２と第２質量体２３とが互いに接近した場合、何ら対策を施さなければ、互いに隣り合う第１質量体２２と第２質量体２３との端部同士が衝突し、異音の発生を招くおそれがある。 However, in the centrifugal pendulum type vibration absorber 20 configured as described above, since each of the first mass body 22 and the second mass body 23 can swing independently with respect to the support member 21, for example, an engine ( When the rotational speed of the support member 21) is relatively low, the behavior of the first mass body 22 and the second mass body 23 tends to be unstable, and the first mass body 22 and the second mass body 23 that are adjacent to each other are likely to be unstable. There is a risk of moving in the opposite direction and approaching each other. And when the 1st mass body 22 and the 2nd mass body 23 which adjoin each other in this way approach each other, if no measures are taken, the end of the 1st mass body 22 and the 2nd mass body 23 which adjoin each other The parts may collide with each other, which may cause abnormal noise.
これに対して、実施例の遠心振子式吸振装置２０では、第２質量体２３の端部すなわち第１金属板２３１の端部２３１ｅが隣に位置する第１質量体２２の対応する端部に形成された間隙Ｇに常に遊嵌しており、第１質量体２２と第２質量体２３とが互い接近するように移動したとしても、第２質量体２３を構成する第１金属板２３１の端部２３１ｅが第１質量体２２の端部に形成された間隙Ｇの更に奥へと入り込むことができる。従って、互いに隣り合う第１質量体２２と第２質量体２３との端部同士が衝突してしまうことはなく、異音の発生を良好に抑制することができる。 On the other hand, in the centrifugal pendulum type vibration absorber 20 of the embodiment, the end of the second mass 23, that is, the end 231 e of the first metal plate 231 is adjacent to the corresponding end of the first mass 22. Even if the first mass body 22 and the second mass body 23 move so as to approach each other, the first metal plate 231 constituting the second mass body 23 is always loosely fitted in the formed gap G. The end 231 e can enter further into the gap G formed at the end of the first mass body 22. Therefore, the ends of the first mass body 22 and the second mass body 23 that are adjacent to each other do not collide with each other, and the generation of abnormal noise can be satisfactorily suppressed.
以上説明したように、実施例の遠心振子式吸振装置２０の第１質量体２２と第２質量体２３とは、アーム部材２４を介して支持部材２１の軸方向に対向し合うと共に互いに連結される２枚の金属板２２１または第１金属板２３１および第２金属板２３２からなる。更に、第１質量体２２を構成する２枚の金属板２２１は、当該第１質量体２２の第２質量体２３側の端部すなわち両方の端部に間隙Ｇを形成する。そして、第１質量体２２と第２質量体２３とが互いに接近するように支持部材２１に対して移動したときに、第２質量体２３を構成する第１金属板２３１の第１質量体２２側の端部２３１ｅは、第１質量体２２の対応する間隙Ｇと遊嵌する。これにより、第１質量体２２および第２質量体２３の挙動が不安定になって互いに隣り合う第１質量体２２と第２質量体２３とが互いに接近したときに両者が衝突するのを抑制することができる。従って、第１質量体２２や第２質量体２３の重量を確保するために両者を周方向に大型化することが可能となり、遠心振子式吸振装置２０の軸長や外径の増加を抑制することができる。この結果、互いに隣り合う第１質量体２２および第２質量体２３の衝突や当該衝突に起因した異音の発生を抑制しつつ、第１質量体２２および第２質量体２３の重量を確保すると共に遠心振子式吸振装置２０をコンパクト化することが可能となる。 As described above, the first mass body 22 and the second mass body 23 of the centrifugal pendulum vibration absorber 20 of the embodiment face each other in the axial direction of the support member 21 via the arm member 24 and are connected to each other. Two metal plates 221 or a first metal plate 231 and a second metal plate 232. Further, the two metal plates 221 constituting the first mass body 22 form a gap G at the end of the first mass body 22 on the second mass body 23 side, that is, at both ends. And when the 1st mass body 22 and the 2nd mass body 23 move with respect to the supporting member 21 so that it may mutually approach, the 1st mass body 22 of the 1st metal plate 231 which comprises the 2nd mass body 23. The side end 231e is loosely fitted with the corresponding gap G of the first mass body 22. Thereby, when the behavior of the first mass body 22 and the second mass body 23 becomes unstable and the first mass body 22 and the second mass body 23 that are adjacent to each other approach each other, they are prevented from colliding with each other. can do. Accordingly, in order to secure the weight of the first mass body 22 and the second mass body 23, both can be enlarged in the circumferential direction, and an increase in the axial length and outer diameter of the centrifugal pendulum vibration absorber 20 is suppressed. be able to. As a result, the weight of the first mass body 22 and the second mass body 23 is ensured while suppressing the collision of the first mass body 22 and the second mass body 23 adjacent to each other and the generation of abnormal noise caused by the collision. At the same time, the centrifugal pendulum vibration absorber 20 can be made compact.
また、上記実施例において、第１質量体２２は、長手方向における両方の端部すなわち第２質量体２３側の端部に間隙Ｇが形成されるように軸方向に連結される２枚の金属板（錘）２２１からなり、第２質量体２３は、軸方向に連結される２枚の第１金属板（錘）２３１と第２金属板（錘）２３２とにより構成される。そして、第１質量体２２と第２質量体２３とが互いに接近するように支持部材２１に対して移動したときに、第２質量体２３の第１質量体２２側の端部すなわち第１金属板２３１の端部２３１ｅが第１質量体２２の間隙Ｇと遊嵌する。このように、軸方向に連結される２枚の金属板２２１により第１質量体２２を構成すれば、第１質量体２２の第２質量体２３の端部に外周側、内周側および径方向からみた第２質量体２３側に開口する凹部としての間隙Ｇを容易に形成することができる。ただし、第１質量体２２は、アーム部材２４を介して支持部材２１に揺動自在に連結されると共に第２質量体２３側の端部に形成された間隙を有する単一の錘からなるものであってもよく、第２質量体２３は、アーム部材２４を介して支持部材２１に揺動自在に連結されると共に第１質量体２２の間隙と遊嵌可能に構成された単一の錘からなるものであってもよい。 Moreover, in the said Example, the 1st mass body 22 is two metal connected with an axial direction so that the gap | interval G may be formed in the both ends in a longitudinal direction, ie, the edge part by the side of the 2nd mass body 23. The second mass body 23 includes a plate (weight) 221 and includes two first metal plates (weights) 231 and a second metal plate (weight) 232 that are connected in the axial direction. When the first mass body 22 and the second mass body 23 move relative to the support member 21 so as to approach each other, the end of the second mass body 23 on the first mass body 22 side, that is, the first metal. The end 231e of the plate 231 is loosely fitted with the gap G of the first mass body 22. Thus, if the 1st mass body 22 is comprised by the two metal plates 221 connected to an axial direction, an outer peripheral side, an inner peripheral side, and a diameter will be in the edge part of the 2nd mass body 23 of the 1st mass body 22. It is possible to easily form the gap G as a recess opening on the second mass body 23 side as viewed from the direction. However, the first mass body 22 is composed of a single weight having a gap formed at the end on the second mass body 23 side while being swingably connected to the support member 21 via the arm member 24. The second mass body 23 is swingably connected to the support member 21 via the arm member 24 and is a single weight configured to be loosely fitted in the gap of the first mass body 22. It may consist of.
また、上記実施例のように、遠心振子式吸振装置がフロントカバー等を介してエンジンに連結される場合、当該エンジンが省気筒化（少気筒化）されるほど第１質量体２２および第２質量体２３の振れ角（揺動範囲）を大きくする必要があり、第１質量体２２と第２質量体２３同士の衝突が生じやすくなってしまうが、上記実施例の遠心振子式吸振装置２０によれば、第１質量体２２および第２質量体２３の振れ角（揺動範囲）を大きくなったとしても、第１質量体２２と第２質量体２３同士の衝突を良好に抑制することができる。従って、実施例の遠心振子式吸振装置２０は、省気筒エンジンと変速装置との間で振動を減衰するのに極めて好適である。 Further, when the centrifugal pendulum vibration absorber is connected to the engine via a front cover or the like as in the above embodiment, the first mass body 22 and the second mass body 22 are reduced as the engine is reduced in cylinders (reduced cylinders). Although it is necessary to increase the deflection angle (swing range) of the mass body 23 and the first mass body 22 and the second mass body 23 are likely to collide with each other, the centrifugal pendulum type vibration absorber 20 of the above embodiment is used. According to the above, even when the deflection angle (swing range) of the first mass body 22 and the second mass body 23 is increased, the collision between the first mass body 22 and the second mass body 23 can be satisfactorily suppressed. Can do. Therefore, the centrifugal pendulum vibration absorber 20 of the embodiment is extremely suitable for attenuating vibration between the cylinder-saving engine and the transmission.
更に、遠心振子式吸振装置２０の支持部材２１をエンジンに連結されるフロントカバー３と変速装置のインプットシャフトに接続されるダンパハブ７との間に配置されるダンパ機構８の回転要素である中間部材８３に接続すれば、フロントカバー３とダンパハブ７との間で遠心振子式吸振装置２０により振動を減衰して当該振動が変速装置へと伝達されるのを良好に抑制することが可能となる。ただし、遠心振子式吸振装置２０の支持部材２１は、ダンパ機構８の回転要素であるドライブ部材（入力部材）８０に接続されてもよく、ダンパ機構８の回転要素であるドリブン部材（出力部材）８４に接続されてもよい。 Further, the intermediate member which is a rotating element of the damper mechanism 8 disposed between the front cover 3 connected to the engine of the support member 21 of the centrifugal pendulum vibration absorber 20 and the damper hub 7 connected to the input shaft of the transmission. If it connects to 83, it will become possible to suppress satisfactorily that a vibration is attenuate | damped by the centrifugal pendulum type vibration absorption apparatus 20 between the front cover 3 and the damper hub 7, and the said vibration is transmitted to a transmission. However, the support member 21 of the centrifugal pendulum vibration absorber 20 may be connected to a drive member (input member) 80 that is a rotating element of the damper mechanism 8, and a driven member (output member) that is a rotating element of the damper mechanism 8. 84 may be connected.
また、上記実施例のように、対応するアーム部材２４と当接して第１質量体２２や第２質量体２３の揺動範囲を規定するストッパ部２１ｃを支持部材２１に形成すれば、アーム部材２４周辺の空いたスペースに部品点数を増やすことなくストッパ部２１ｃを設けることが可能となる。 Further, as in the above embodiment, if the stopper member 21c that contacts the corresponding arm member 24 and defines the swing range of the first mass body 22 or the second mass body 23 is formed on the support member 21, the arm member It is possible to provide the stopper portion 21c in an empty space around 24 without increasing the number of parts.
更に、上記実施例では、複数の第１質量体２２および第２質量体２３のすべてが同一の重量を有すると共に、第１質量体２２と第２質量体２３とが互いに異なる構造を有しており、支持部材２１に対して１つおきに第１質量体２２が配設されると共に１体の第１質量体２２の両隣に第２質量体２３が配設される。これにより、第１質量体２２および第２質量体２３のそれぞれを左右対称の構造を有するバランスのよいものとして遠心振子式吸振装置２０の吸振性能を向上させることが可能となる。 Furthermore, in the said Example, while all the some 1st mass bodies 22 and the 2nd mass bodies 23 have the same weight, the 1st mass body 22 and the 2nd mass body 23 have a mutually different structure. The first mass bodies 22 are disposed every other support member 21 and the second mass bodies 23 are disposed on both sides of the first mass body 22. Accordingly, it is possible to improve the vibration absorption performance of the centrifugal pendulum type vibration absorber 20 by setting each of the first mass body 22 and the second mass body 23 to have a balanced structure having a bilaterally symmetric structure.
そして、上記実施例において、第１質量体２２の第２質量体２３側の端部と第２質量体２３の第１質量体２２側の端部とは、常に軸方向からみて重なっている。これにより、第１質量体２２と第２質量体２３とが衝突するのをより確実に抑制すると共に、第１質量体２２と第２質量体２３とをそれぞれ周方向に更に拡大して第１質量体２２および第２質量体２３の重量をより増加させることが可能となる。 And in the said Example, the edge part by the side of the 2nd mass body 23 of the 1st mass body 22 and the edge part by the side of the 1st mass body 22 of the 2nd mass body 23 have always overlapped seeing from the axial direction. Accordingly, the first mass body 22 and the second mass body 23 are more reliably prevented from colliding with each other, and the first mass body 22 and the second mass body 23 are further enlarged in the circumferential direction, respectively. The weights of the mass body 22 and the second mass body 23 can be further increased.
図６は、変形例に係る遠心振子式吸振装置２０Ｂを示す概略構成図である。以下、上記遠心振子式吸振装置２０に関連して説明したものと同一の要素には同一の参照符号を付し、重複する説明を省略する。図６の遠心振子式吸振装置２０Ｂを構成する第１質量体２２Ｂおよび第２質量体２３Ｂは、それぞれが中立状態（２本のアーム部材２４の中心線が支持部材２１の中心を通る状態）にあるときや、それぞれが同方向に揺動するときに互いに隣り合う端部同士が軸方向からみて重ならないように構成される。そして、第１質量体２２Ｂおよび第２質量体２３Ｂは、図７に示すように、揺動範囲内で両者が互いに接近するように支持部材２１に対して移動したときにのみ、第１質量体２２Ｂの第２質量体２３側の端部と第２質量体２３Ｂの第１質量体２２側の端部とが支持部材２１の軸方向からみて重なることができるように構成される。このように、本発明の遠心振子式吸振装置において、複数の質量体は、互いに隣り合う端部同士が常に軸方向からみて重なっていなくてもよい。 FIG. 6 is a schematic configuration diagram illustrating a centrifugal pendulum vibration absorber 20B according to a modification. Hereinafter, the same elements as those described in relation to the centrifugal pendulum vibration absorber 20 are denoted by the same reference numerals, and redundant description is omitted. Each of the first mass body 22B and the second mass body 23B constituting the centrifugal pendulum vibration absorber 20B of FIG. 6 is in a neutral state (a state where the center line of the two arm members 24 passes through the center of the support member 21). In some cases, when each swings in the same direction, the end portions adjacent to each other are configured not to overlap each other when viewed from the axial direction. Then, as shown in FIG. 7, the first mass body 22B and the second mass body 23B only move when the first mass body 22B moves relative to the support member 21 so as to approach each other within the swing range. The end portion of 22B on the second mass body 23 side and the end portion of the second mass body 23B on the first mass body 22 side can be overlapped when viewed from the axial direction of the support member 21. Thus, in the centrifugal pendulum type vibration absorber of the present invention, the plurality of mass bodies do not necessarily overlap each other at the end portions adjacent to each other when viewed from the axial direction.
図８は、他の変形例に係る遠心振子式吸振装置２０Ｃの正面図であり、図９は、遠心振子式吸振装置２０Ｃを径方向からみた説明図である。これらの図面に示す遠心振子式吸振装置２０Ｃを構成する第２質量体２３Ｃは、支持部材２１の外周に沿うように概ね円弧状に湾曲した２枚の同一の金属板（錘）２３３からなるものであり、金属板２３３は、基部２３３ｂと当該基部２３３ｂから延出された係合端部２３３ｅとを有する。図９に示すように、金属板２３３は、第２質量体２３Ｃが支持部材２１に取り付けられた際に係合端部２３３ｅが基部２３３ｂに対して径方向からみて支持部材２１の軸方向にオフセットされるように形成されている。２枚の金属板２３３は、基部２３３ｂ同士が支持部材２１の軸方向に対向し合うと共に係合端部２３３ｅ同士が互いに反対側に位置するようにリベット等を介して互いに連結される。更に、２枚の金属板２３３の基部２３３ｂ間には、２本のアーム部材２４の一端部が差し込まれ、２本のアーム部材２４は、それぞれ支軸２４ｓを介して２枚の金属板２３３に対して回転自在に連結されると共に支軸２５ｓを介して支持部材２１およびアーム支持プレート２５に回転自在に連結される。そして、各金属板２３３の係合端部２３３ｅは、図８および図９に示すように、両隣に位置する第１質量体２２の対応する端部に形成された間隙Ｇに遊嵌する。このように構成される第２質量体２３Ｃも概ね左右対称の構造を有するバランスのよいものである。また、２枚の同一の金属板２３３からなる第２質量体２３Ｃによれば、遠心振子式吸振装置２０Ｃにおける部品の種類を減らして当該遠心振子式吸振装置２０Ｃを低コスト化することが可能となる。 FIG. 8 is a front view of a centrifugal pendulum vibration absorber 20C according to another modification, and FIG. 9 is an explanatory view of the centrifugal pendulum vibration absorber 20C as viewed from the radial direction. The second mass body 23C constituting the centrifugal pendulum vibration absorber 20C shown in these drawings is composed of two identical metal plates (weights) 233 that are curved in a generally arc shape along the outer periphery of the support member 21. The metal plate 233 has a base portion 233b and an engagement end portion 233e extending from the base portion 233b. As shown in FIG. 9, when the second mass body 23 </ b> C is attached to the support member 21, the metal plate 233 has the engagement end portion 233 e offset in the axial direction of the support member 21 with respect to the base portion 233 b. It is formed to be. The two metal plates 233 are connected to each other via rivets or the like so that the base portions 233b face each other in the axial direction of the support member 21 and the engagement end portions 233e are located on opposite sides. Further, one end of the two arm members 24 is inserted between the base portions 233b of the two metal plates 233, and the two arm members 24 are respectively attached to the two metal plates 233 via the support shaft 24s. The support member 21 and the arm support plate 25 are rotatably connected to each other through the support shaft 25s. As shown in FIGS. 8 and 9, the engagement end portion 233 e of each metal plate 233 is loosely fitted in the gap G formed at the corresponding end portion of the first mass body 22 located on both sides. The second mass body 23 </ b> C configured as described above is also a well-balanced one having a generally bilaterally symmetric structure. Further, according to the second mass body 23C made of two identical metal plates 233, it is possible to reduce the cost of the centrifugal pendulum vibration absorber 20C by reducing the types of parts in the centrifugal pendulum vibration absorber 20C. Become.
図１０は、他の変形例に係る遠心振子式吸振装置２０Ｄの正面図であり、図１１は、遠心振子式吸振装置２０Ｄを径方向からみた説明図である。これらの図面に示す遠心振子式吸振装置２０Ｄは、同一の構造および重量を有する複数の質量体２７を含むものである。各質量体２７は、支持部材２１の外周に沿うように概ね円弧状に湾曲した１枚の第１金属板（錘）２７１と、当該第１金属板２７１よりも短い周長を有する第２金属板（錘）２７２とからなる。第１金属板２７１は、基部２７１ｂと当該基部２７１ｂから延出された係合端部２７１ｅとを有する。図１１に示すように、第１金属板２７１は、質量体２７が支持部材２１に取り付けられた際に係合端部２７１ｅが基部２７１ｂに対して径方向からみて支持部材２１の軸方向にオフセットされるように形成されている。また、第２金属板２７２は、第１金属板２７１の基部２７１ｂと概ね同一の平面形状を有するように形成されている。 FIG. 10 is a front view of a centrifugal pendulum vibration absorber 20D according to another modification, and FIG. 11 is an explanatory view of the centrifugal pendulum vibration absorber 20D as viewed from the radial direction. A centrifugal pendulum vibration absorber 20D shown in these drawings includes a plurality of mass bodies 27 having the same structure and weight. Each mass body 27 includes a first metal plate (weight) 271 that is curved in a generally arc shape along the outer periphery of the support member 21, and a second metal that has a shorter circumference than the first metal plate 271. Plate (weight) 272. The first metal plate 271 includes a base portion 271b and an engagement end portion 271e extending from the base portion 271b. As shown in FIG. 11, when the mass body 27 is attached to the support member 21, the first metal plate 271 has an engagement end portion 271e offset in the axial direction of the support member 21 with respect to the base portion 271b. It is formed to be. Further, the second metal plate 272 is formed to have substantially the same planar shape as the base portion 271 b of the first metal plate 271.
第２金属板２７２は、第１金属板２７１の基部２７１ｂに対して支持部材２１の軸方向に対向する状態でリベット等を介して連結され、第１金属板２７１と第２金属板２７２とにより係合端部２７１ｅとは反対側の端部に間隙Ｇが形成される。更に、第１金属板２７１の基部２７１ｂと第２金属板２７２との間には、２本のアーム部材２４の一端部が差し込まれ、２本のアーム部材２４は、それぞれ支軸２４ｓを介して２枚の金属板２３３に対して回転自在に連結されると共に支軸２５ｓを介して支持部材２１およびアーム支持プレート２５に回転自在に連結される。そして、各質量体２７の係合端部２７１ｅは、図１０および図１１に示すように、隣り合う質量体２７の端部に形成された間隙Ｇに遊嵌する。このように、複数の質量体２７のすべてを同一の構造および重量を有するものとすれば、遠心振子式吸振装置２０Ｄにおける部品の種類を減らして当該遠心振子式吸振装置２０Ｄを低コスト化することが可能となる。 The second metal plate 272 is connected to the base portion 271 b of the first metal plate 271 through a rivet or the like in a state of facing the axial direction of the support member 21, and is connected by the first metal plate 271 and the second metal plate 272. A gap G is formed at the end opposite to the engagement end 271e. Further, one end of two arm members 24 is inserted between the base portion 271b of the first metal plate 271 and the second metal plate 272, and the two arm members 24 are respectively connected via a support shaft 24s. It is rotatably connected to the two metal plates 233 and is rotatably connected to the support member 21 and the arm support plate 25 via the support shaft 25s. Then, as shown in FIGS. 10 and 11, the engagement end portion 271 e of each mass body 27 is loosely fitted in the gap G formed at the end portion of the adjacent mass body 27. Thus, if all the mass bodies 27 have the same structure and weight, the types of parts in the centrifugal pendulum vibration absorber 20D can be reduced, and the cost of the centrifugal pendulum vibration absorber 20D can be reduced. Is possible.
以上、実施例を用いて本発明の実施の形態について説明したが、本発明は上記実施例に何ら限定されるものではなく、本発明の要旨を逸脱しない範囲内において、様々な変更をなし得ることはいうまでもない。 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.
本発明は、遠心振子式吸振装置の製造産業に利用可能である。 The present invention can be used in the manufacturing industry of centrifugal pendulum vibration absorbers.
１ 流体伝動装置、３ フロントカバー、４ ポンプインペラ、５ タービンランナ、６ ステータ、７ ダンパハブ、８ ダンパ機構、９ ロックアップクラッチ機構、２０，２０Ｂ，２０Ｃ，２０Ｄ 遠心振子式吸振装置、２１ 支持部材、２１ａ 嵌合孔、２１ｂ 連結孔、２１ｃ ストッパ部、２２，２２Ｂ 第１質量体、２３，２３Ｂ，２３Ｃ 第２質量体、２４ アーム部材、２４ｓ，２５ｓ 支軸、２５ アーム支持プレート、２７ 質量体、６１ ワンウェイクラッチ、８０ ドライブ部材、８１ 第１コイルスプリング、８２ 第２コイルスプリング、８３ 中間部材、８４ ドリブン部材、２２１，２３３ 金属板、２３１，２７１ 第１金属板、２３１ｅ 端部、２３２，２７２ 第２金属板、２３３ｂ，２７１ｂ 基部、２３３ｅ，２７１ｅ 係合端部。 DESCRIPTION OF SYMBOLS 1 Fluid transmission device, 3 Front cover, 4 Pump impeller, 5 Turbine runner, 6 Stator, 7 Damper hub, 8 Damper mechanism, 9 Lock-up clutch mechanism, 20, 20B, 20C, 20D Centrifugal pendulum type vibration absorber, 21 Support member, 21a fitting hole, 21b connecting hole, 21c stopper portion, 22, 22B first mass body, 23, 23B, 23C second mass body, 24 arm member, 24s, 25s support shaft, 25 arm support plate, 27 mass body, 61 One-way clutch, 80 Drive member, 81 First coil spring, 82 Second coil spring, 83 Intermediate member, 84 Driven member, 221, 233 Metal plate, 231, 271 First metal plate, 231e End, 232, 272 First 2 metal plates, 233b, 271b base, 233e, 27 e engagement end.
Claims (7)
前記複数の質量体の各々は、アーム部材を介して前記支持部材に揺動自在に連結される錘からなり、
互いに隣り合う２つの質量体の一方を第１質量体とすると共に他方を第２質量体としたときに、前記第１質量体を構成する錘の少なくとも前記第２質量体側の端部には間隙が形成され、
前記第１質量体と前記第２質量体とが互いに接近するように前記支持部材に対して移動したときに、前記第２質量体を構成する錘が前記第１質量体の前記間隙と遊嵌することを特徴とする遠心振子式吸振装置。 In a centrifugal pendulum type vibration absorber provided with a support member that is coaxially attached to a rotating element, and a plurality of mass bodies that are swingably connected to the support member and are adjacent to each other in the circumferential direction,
Each of the plurality of mass bodies includes a weight that is swingably connected to the support member via an arm member,
When one of the two mass bodies adjacent to each other is the first mass body and the other is the second mass body, there is a gap at least at the end on the second mass body side of the weight constituting the first mass body. Formed,
When the first mass body and the second mass body move relative to the support member so as to approach each other, the weight constituting the second mass body is loosely fitted to the gap of the first mass body A centrifugal pendulum type vibration absorber.
前記複数の質量体の各々は、前記アーム部材を介して前記支持部材の軸方向に対向し合うと共に互いに連結される２つの錘からなり、
前記第１質量体を構成する２つの錘は、前記第２質量体側の端部に間隙を形成し、
前記第１質量体と前記第２質量体とが互いに接近するように前記支持部材に対して移動したときに、前記第２質量体を構成する２つの錘の一方の前記第１質量体側の端部が前記第１質量体の前記間隙と遊嵌することを特徴とする遠心振子式吸振装置。 The centrifugal pendulum type vibration absorber according to claim 1,
Each of the plurality of mass bodies includes two weights facing each other in the axial direction of the support member via the arm member and coupled to each other.
The two weights constituting the first mass body form a gap at an end portion on the second mass body side,
When the first mass body and the second mass body move relative to the support member so as to approach each other, one end of the two masses constituting the second mass body on the first mass body side The centrifugal pendulum type vibration absorber is characterized in that a part is loosely fitted with the gap of the first mass body.
前記支持部材には、前記アーム部材と当接して前記質量体の揺動範囲を規定するストッパ部が形成されていることを特徴とする遠心振子式吸振装置。 The centrifugal pendulum vibration absorber according to claim 2,
The centrifugal pendulum type vibration absorber according to claim 1, wherein the support member is formed with a stopper portion that abuts on the arm member and defines a swing range of the mass body.
前記複数の質量体のすべてが同一の重量を有すると共に、前記第１質量体と前記第２質量体とが互いに異なる構造を有することを特徴とする遠心振子式吸振装置。 In the centrifugal pendulum type vibration absorber according to any one of claims 1 to 3,
The centrifugal pendulum type vibration absorber according to claim 1, wherein all of the plurality of mass bodies have the same weight, and the first mass body and the second mass body have different structures.
前記複数の質量体のすべてが同一の構造および重量を有することを特徴とする遠心振子式吸振装置。 In the centrifugal pendulum type vibration absorber according to any one of claims 1 to 3,
The centrifugal pendulum type vibration absorber is characterized in that all of the plurality of mass bodies have the same structure and weight.
前記第１質量体の前記第２質量体側の端部と前記第２質量体の前記第１質量体側の端部とは、常に軸方向からみて重なっていることを特徴とする遠心振子式吸振装置。 In the centrifugal pendulum type vibration absorber according to any one of claims 1 to 5,
The centrifugal pendulum type vibration absorber, wherein an end portion of the first mass body on the second mass body side and an end portion of the second mass body on the first mass body side always overlap each other when viewed from the axial direction. .
前記支持部材は、原動機に連結される入力部材と変速装置の入力軸との間に配置されるダンパ機構の回転要素の何れかに接続されることを特徴とする遠心振子式吸振装置。 The centrifugal pendulum vibration absorber according to any one of claims 1 to 6,
The centrifugal pendulum type vibration absorber according to claim 1, wherein the support member is connected to any one of rotating elements of a damper mechanism disposed between an input member coupled to the prime mover and an input shaft of the transmission.
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| CN2011800464212A CN103119325A (en) | 2010-12-29 | 2011-12-26 | Centrifugal pendulum absorber device |
| DE112011101021T DE112011101021T5 (en) | 2010-12-29 | 2011-12-26 | Centrifugal pendulum vibration damping device |
| PCT/JP2011/080096 WO2012090945A1 (en) | 2010-12-29 | 2011-12-26 | Centrifugal pendulum absorber device |
| US13/337,913 US8910762B2 (en) | 2010-12-29 | 2011-12-27 | Centrifugal-pendulum vibration absorbing device |
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| EP3163117A4 (en) * | 2014-09-25 | 2017-08-30 | Aisin Aw Co., Ltd. | Damper device |
| US20180245665A1 (en) * | 2015-08-05 | 2018-08-30 | Valeo Embrayages | Device for damping torsional oscillations |
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|---|---|---|---|---|
| JPH03140652A (en) * | 1989-10-23 | 1991-06-14 | Nissan Motor Co Ltd | Supporting structure for turning shaft |
| JPH07190146A (en) * | 1993-11-26 | 1995-07-28 | Carl Freudenberg:Fa | Torsion damper |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03140652A (en) * | 1989-10-23 | 1991-06-14 | Nissan Motor Co Ltd | Supporting structure for turning shaft |
| JPH07190146A (en) * | 1993-11-26 | 1995-07-28 | Carl Freudenberg:Fa | Torsion damper |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3163117A4 (en) * | 2014-09-25 | 2017-08-30 | Aisin Aw Co., Ltd. | Damper device |
| US20180245665A1 (en) * | 2015-08-05 | 2018-08-30 | Valeo Embrayages | Device for damping torsional oscillations |
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