JP2002181073A - Oil groove shape for frictional member - Google Patents
Oil groove shape for frictional memberInfo
- Publication number
- JP2002181073A JP2002181073A JP2000383448A JP2000383448A JP2002181073A JP 2002181073 A JP2002181073 A JP 2002181073A JP 2000383448 A JP2000383448 A JP 2000383448A JP 2000383448 A JP2000383448 A JP 2000383448A JP 2002181073 A JP2002181073 A JP 2002181073A
- Authority
- JP
- Japan
- Prior art keywords
- oil groove
- friction
- friction material
- oil
- friction surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/60—Clutching elements
- F16D13/64—Clutch-plates; Clutch-lamellae
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/72—Features relating to cooling
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/76—Friction clutches specially adapted to incorporate with other transmission parts, i.e. at least one of the clutch parts also having another function, e.g. being the disc of a pulley
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D2069/004—Profiled friction surfaces, e.g. grooves, dimples
-
- 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
- F16H2045/0226—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 comprising two or more vibration dampers
-
- 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
- F16H2045/0273—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch
- F16H2045/0289—Details of friction surfaces of the lock-up clutch
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はクラッチ板等の空転
時における引き摺り抵抗を小さくする為に、摩擦材表面
に形成する油溝形状に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil groove formed on the surface of a friction material in order to reduce drag resistance of a clutch plate or the like during idling.
【０００２】[0002]
【従来の技術】例えば自動車等においてエンジンの動力
を車輪に伝達する場合、間にはクラッチが設けられて変
速がスムーズに行われている。該クラッチは常時動力を
伝達するが、係合させる時などでは適度な滑りを与える
と共に、変速機の変速歯車を切替える時には動力を遮断
する必要がある。このような機能を満たす為にクラッチ
が用いられているが、該クラッチの中では潤滑油中で使
用する湿式クラッチが多用されている。2. Description of the Related Art For example, when transmitting the power of an engine to wheels in an automobile or the like, a clutch is provided between the wheels so that a shift can be performed smoothly. The clutch always transmits power, but it is necessary to provide an appropriate slip when engaged and to shut off the power when switching the transmission gears of the transmission. A clutch is used to satisfy such a function, and among these clutches, a wet clutch used in lubricating oil is frequently used.
【０００３】この種の湿式クラッチに関しては従来技術
として実公平４−４２５８６号に係る「湿式摩擦材」、
実開昭６２−８２４２８号に係る「湿式摩擦係合板」、
特開昭６１−１９７８２８号に係る「成形された環状ク
ラッチフェーシング」、特開平１１−１４１５７０号に
係る「フリクションプレート」等が知られている。そし
てこれら湿式クラッチの摩擦面には油溝が形成されてい
る。[0003] With regard to this type of wet clutch, a "wet friction material" disclosed in Japanese Utility Model Publication No. 4-42586 as a prior art,
“Wet friction engagement plate” according to Japanese Utility Model Application Laid-Open No. 62-82428,
Japanese Patent Application Laid-Open No. 61-197828 discloses a "formed annular clutch facing" and Japanese Patent Application Laid-Open No. 11-141570 discloses a "friction plate". Oil grooves are formed on the friction surfaces of these wet clutches.
【０００４】油溝の目的は色々あって、係合時の摩擦滑
りによってクラッチ板に発生する摩擦熱を油溝の潤滑油
によって外へ運び出すことが出来、又油溝を設けること
で係合時の摩擦係数を調整することが出来て、作動時の
トルク伝達を安定させる。さらに油溝を設けることでク
ラッチ板の耐久寿命を長くすることも可能と成る等、色
々な効果を得ることが出来る。There are various purposes for the oil groove, and friction heat generated in the clutch plate due to frictional sliding at the time of engagement can be carried out by the lubricating oil in the oil groove. The friction coefficient can be adjusted to stabilize the torque transmission during operation. Further, by providing the oil groove, various effects can be obtained such that the durability life of the clutch plate can be extended.
【０００５】図４は一般的なトルクコンバータの断面で
あるが、トルクコンバータとは周知の通りエンジンの動
力を、作動流体を媒体としてトランスミッションへ伝え
ることが出来る一種の継手であり、エンジンによって回
されるポンプインペラ、そして該ポンプインペラの回転
により送り出される作動流体の動きを受けて回るタービ
ンランナ、さらにタービンランナから出た作動流体の向
きを変えてポンプインペラへ導くステータから構成され
ている。FIG. 4 is a sectional view of a general torque converter. As is well known, a torque converter is a kind of joint capable of transmitting the power of an engine to a transmission using a working fluid as a medium. A pump impeller, a turbine runner that rotates by receiving the movement of the working fluid sent out by the rotation of the pump impeller, and a stator that changes the direction of the working fluid that has flowed out of the turbine runner and guides it to the pump impeller.
【０００６】同図の(イ)はポンプインペラ、(ロ)はター
ビンランナ、(ハ)はステータを示している。そしてコン
バータ外殻(ニ)内には作動流体が封入されており、エン
ジンによってフロントカバーと共にポンプインペラ(イ)
が回転することにより、作動流体を媒介としてタービン
ランナ(ロ)が回り始め、ポンプインペラ(イ)とタービン
ランナ(ロ)の回転数差が大きい間は、ステータ(ハ)があ
ることによるトルク増幅作用によってタービンランナ
(ロ)は大きなトルク比で回転させられ、回転数差が小さ
くなるとトルク増幅作用はなくなり、流体継手としてポ
ンプインペラ(イ)からタービンランナ(ロ)へ動力が伝え
られる。そしてタービンランナ(ロ)が所定の回転速度に
達したところで、ロックアップピストン(ホ)が動いてフ
ロントカバー(ヘ)に圧接し、コンバータ外殻(ニ)の回転
は直接タービンランナ(ロ)に伝えられる。FIG. 1A shows a pump impeller, FIG. 2B shows a turbine runner, and FIG. 2C shows a stator. A working fluid is sealed in the converter outer shell (d), and the pump impeller (a) is mounted together with the front cover by the engine.
As the turbine rotates, the turbine runner (b) starts rotating with the working fluid as a medium, and while the rotation speed difference between the pump impeller (a) and the turbine runner (b) is large, torque amplification due to the presence of the stator (c) Turbine runner by action
(B) is rotated at a large torque ratio, and when the difference in the number of rotations is reduced, the torque amplifying action is lost, and power is transmitted from the pump impeller (a) to the turbine runner (b) as a fluid coupling. Then, when the turbine runner (b) reaches the predetermined rotation speed, the lock-up piston (e) moves and presses against the front cover (f), and the rotation of the converter outer shell (d) is directly applied to the turbine runner (b). Reportedly.
【０００７】ここでロックアップピストン(ホ)には摩擦
材(ト)が貼着され、この摩擦材(ト)を介してロックアッ
プピストン(ホ)がフロントカバー(ヘ)に圧接することが
出来、ロックアックピストン(ホ)は一種のクラッチ板と
して機能する。しかしロックアップピストン(ホ)がフロ
ントカバー(ヘ)に圧接していない場合であって空転時に
は、ここに引き摺り抵抗が発生している。その結果、動
力の伝達効率は多少を問わず低下する。Here, a friction material (g) is adhered to the lock-up piston (e), and the lock-up piston (e) can be pressed against the front cover (f) via the friction material (g). The lock-ack piston (e) functions as a kind of clutch plate. However, when the lock-up piston (e) is not in pressure contact with the front cover (f), and during idling, drag resistance is generated here. As a result, the power transmission efficiency is somewhat reduced.
【０００８】この摩擦材(ト)は一般には紙質基材に樹脂
を含浸処理加工したものであるが、上記従来技術の前記
摩擦材や係合板に相当し、この摩擦材(ト)がフロントカ
バー(ヘ)に圧接しない状態では、引き摺り抵抗が出来る
だけ小さくなるように油溝を形成する必要がある。しか
し従来の上記摩擦材に形成している油溝の形態は一般に
半径方向に延びるものであり、湿式クラッチとして潤滑
油を回転と共に有効に取り込んで引き摺り抵抗を低減す
る考慮は成されていない。The friction material (g) is generally obtained by impregnating a paper base material with a resin, and corresponds to the friction material and the engagement plate of the above-mentioned prior art, and the friction material (g) is a front cover. In a state where the contact is not pressed against (f), it is necessary to form an oil groove so that the drag resistance is as small as possible. However, the form of the oil groove formed in the conventional friction material generally extends in the radial direction, and no consideration has been given to reducing the drag resistance by effectively taking in the lubricating oil with rotation as a wet clutch.
【０００９】[0009]
【発明が解決しようとする課題】このように従来の摩擦
材には上記のごとき問題がある。本発明が解決しようと
する課題はこの問題点であり、クラッチ等が係合してい
ない空転時においての引き摺り抵抗を出来る限り抑える
ことで伝達効率の向上を図った摩擦材の油溝形状を提供
する。As described above, the conventional friction material has the above-mentioned problems. The problem to be solved by the present invention is this problem. To provide an oil groove shape of a friction material in which transmission efficiency is improved by minimizing drag resistance during idling when a clutch or the like is not engaged. I do.
【００１０】[0010]
【課題を解決する為の手段】本発明に係る摩擦材は一般
にクラッチ板等に貼着されるものであり、該クラッチ板
等が係合して動力の伝達を行う場合、滑らないように大
きな摩擦力を発生することが出来る。しかし、クラッチ
板等が係合していない場合であって空転時の引き摺り抵
抗を低減することも重要であり、その為に摩擦面に油溝
を設けている。本発明ではクラッチ板等が回転すること
で油溝に潤滑油が入り込み摩擦材の摩擦面に潤滑油が流
れ出して流体潤滑膜を形成することが出来るように構成
する。The friction material according to the present invention is generally affixed to a clutch plate or the like. When the clutch plate or the like is engaged to transmit power, the friction material is large so as not to slip. It can generate frictional force. However, it is also important to reduce the drag resistance during idling when the clutch plate or the like is not engaged, and for that purpose, an oil groove is provided on the friction surface. According to the present invention, the lubricating oil enters the oil groove by the rotation of the clutch plate or the like, and the lubricating oil flows out to the friction surface of the friction material to form a fluid lubricating film.
【００１１】ところで、本発明の摩擦材はリング状を成
すと共に摩擦面に形成される油溝は摩擦面外周から内側
へ延びると共に先端は摩擦面内に収まり、そして該油溝
は回転に伴って潤滑油が流入するように半径方向に対し
て傾斜している。又、摩擦面内周から外側へ延びると共
に先端は摩擦面内に収まり、そして同じく油溝は回転に
伴って潤滑油が流入するように半径方向に対して傾斜し
ている。そして、これら油溝に入り込んだ潤滑油が摩擦
材の回転に伴って流出し易いように、先端の摩擦面との
境界には比較的大きなＲ面又はＣ面を形成する。By the way, the friction material of the present invention has a ring shape, an oil groove formed on the friction surface extends inward from the outer periphery of the friction surface, and a tip of the oil groove is accommodated in the friction surface. It is inclined with respect to the radial direction so that the lubricating oil flows. Also, the tip extends inside the friction surface from the inner periphery to the outside and fits in the friction surface, and the oil groove is also inclined with respect to the radial direction so that lubricating oil flows in with rotation. A relatively large R surface or C surface is formed at the boundary with the friction surface at the tip end so that the lubricating oil that has entered these oil grooves easily flows out with the rotation of the friction material.
【００１２】油溝は摩擦材が有す厚さ内で形成すること
が一般的であるが、貫通して形成する場合もある。リン
グ状の摩擦材はクラッチ板等の表面に貼着される為に、
貼着することでクラッチ板等の表面を底として油溝を構
成することが出来る。以下、本発明に係る実施例を図面
に基づいて詳細に説明する。The oil groove is generally formed within the thickness of the friction material, but may be formed through the oil groove. Because the ring-shaped friction material is attached to the surface of the clutch plate etc.,
By sticking, the oil groove can be formed with the surface of the clutch plate or the like as the bottom. Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.
【００１３】[0013]
【実施例】図１は本発明の摩擦材１を示している実施例
である。この摩擦材１は同図に示すようにリング状を成
し、材質は紙質基材に樹脂を含浸処理加工したもので、
一般にはクラッチ板の表面に貼着される。しかし、本発
明では摩擦材１の材質は限定しないことにする。大きな
中心穴２を有してリング状を成している摩擦材１は、平
坦な摩擦面３が形成され、そして該摩擦面３には複数の
油溝４，４…が等間隔で設けられ、これら油溝４，４…
には潤滑油が溜まると共に上記摩擦面３を流体潤滑状態
に保つことが出来る。FIG. 1 is an embodiment showing a friction material 1 according to the present invention. This friction material 1 is formed in a ring shape as shown in the figure, and is made of a paper base material impregnated with a resin.
Generally, it is attached to the surface of the clutch plate. However, in the present invention, the material of the friction material 1 is not limited. The ring-shaped friction material 1 having a large center hole 2 is formed with a flat friction surface 3, and the friction surface 3 is provided with a plurality of oil grooves 4, 4,. , These oil grooves 4,4 ...
And the friction surface 3 can be maintained in a fluid lubricated state.
【００１４】図２は油溝４の拡大図を示しているが、油
溝４は摩擦面外周５に開口していて中心穴２に向かって
切込まれ、しかし油溝４の先端６は摩擦面内に収まって
中心穴２まで達することなく、形状は細長い凹部を形成
している。そして油溝４の内側面７は底からほぼ垂直に
起立しているが、摩擦面３との境界は適度な大きさの曲
面となっている。今、摩擦材１が矢印方向に回転するな
らば、又は摩擦面３に近接している回転体が矢印とは反
対方向に回転する場合には、上記油溝４との境界は曲面
ｒとなっている為に、該油溝４から摩擦面３へ潤滑油が
流れ出る。FIG. 2 shows an enlarged view of the oil groove 4, which is open to the outer periphery 5 of the friction surface and is cut toward the center hole 2. The shape forms an elongated recess without being accommodated in the plane and reaching the center hole 2. The inner side surface 7 of the oil groove 4 stands almost vertically from the bottom, but the boundary with the friction surface 3 is a curved surface of an appropriate size. Now, if the friction material 1 rotates in the direction of the arrow, or if the rotating body close to the friction surface 3 rotates in the direction opposite to the arrow, the boundary with the oil groove 4 becomes a curved surface r. Therefore, lubricating oil flows out from the oil groove 4 to the friction surface 3.
【００１５】そして油溝４の先端側の曲面Rは比較的大
きく、R＞ｒとなっている為に、摩擦材１の回転に伴っ
て油溝４に流入した潤滑油は後方側ｒ面及び先端側のR
面に沿って流れ出し、摩擦面３に流体潤滑状態をもたら
しめる。又本発明の摩擦材１は回転することで潤滑油が
流入するようにその向きが半径方向に対して傾斜してい
る。Since the curved surface R on the tip end side of the oil groove 4 is relatively large and R> r, the lubricating oil flowing into the oil groove 4 with the rotation of the friction material 1 is removed from the rear side r surface and R on the tip side
It flows along the surface and brings about a fluid lubrication state on the friction surface 3. Further, the direction of the friction material 1 of the present invention is inclined with respect to the radial direction so that the lubricating oil flows by rotating.
【００１６】図１において、摩擦面外周５の１点Pにお
いて引いた接線に対して、油溝４は鋭角θ(θ＜９０°)
で傾斜している。すなわち油溝４の開口８が先端６に対
して回転方向、又は摩擦面３に近接している回転体に対
する摩擦材１の相対回転方向に進む方向に傾斜している
ので、矢印方向に回転することで潤滑油は開口８から油
溝４に流入し、この潤滑油は摩擦面３に流れ出す。In FIG. 1, the oil groove 4 has an acute angle θ (θ <90 °) with respect to a tangent drawn at one point P on the outer periphery 5 of the friction surface.
It is inclined. That is, since the opening 8 of the oil groove 4 is inclined in the direction of rotation with respect to the tip 6 or in the direction of rotation of the friction material 1 relative to the rotating body close to the friction surface 3, the oil groove 4 rotates in the direction of the arrow. As a result, the lubricating oil flows into the oil groove 4 from the opening 8, and the lubricating oil flows out to the friction surface 3.
【００１７】図３は本発明に係る摩擦材１を示している
他の実施例である。この摩擦材１の摩擦面３には外周５
に開口８を有して切り込まれた油溝４，４…が等間隔で
設けられ、又内周９に開口８を有して切り込まれている
油溝１０，１０…を有している。外周５から内側へ向い
て切り込まれている油溝４，４…は上記図１に示した場
合と同じである。FIG. 3 shows another embodiment of the friction material 1 according to the present invention. An outer periphery 5 is provided on the friction surface 3 of the friction material 1.
Are provided at regular intervals and have oil grooves 10, 4 which are cut in the inner periphery 9 with the opening 8. I have. The oil grooves 4, 4... Cut inward from the outer periphery 5 are the same as those shown in FIG.
【００１８】油溝１０，１０…は中心穴１の内周９から
外方向へ切欠かれて形成され、しかもその方向は摩擦材
１が回転することで潤滑油が流入し易い向きとなってい
る。すなわち、内周の１点Qに引いた接線に対して鋭角
θ(θ＜９０°)となっていて、垂直方向ではない。すな
わち前記図１で説明したと同じように、油溝１０の開口
が先端に対して回転方向、又は摩擦面３に近接している
回転体に対する摩擦材１の相対回転方向に進む方向に傾
斜しているので、矢印方向に回転することで潤滑油は開
口８から油溝１０に流入し、この潤滑油は摩擦面３に流
れ出し、該摩擦面３を流体潤滑状態に保つことが出来
る。The oil grooves 10, 10,... Are formed by cutting out from the inner periphery 9 of the center hole 1 to the outside, and the direction is such that the lubricating oil easily flows in due to the rotation of the friction material 1. . That is, the angle is an acute angle θ (θ <90 °) with respect to a tangent drawn at one point Q on the inner circumference, and is not a vertical direction. That is, in the same manner as described with reference to FIG. 1, the opening of the oil groove 10 is inclined in the direction of rotation in the direction of rotation with respect to the tip or in the direction of relative rotation of the friction material 1 with respect to the rotating body close to the friction surface 3. Therefore, by rotating in the direction of the arrow, the lubricating oil flows into the oil groove 10 from the opening 8, and this lubricating oil flows out to the friction surface 3, so that the friction surface 3 can be maintained in a fluid lubricated state.
【００１９】このように外周側と内周側に油溝４，４
…、及び１０，１０…を設けることで、外周５からは油
溝４，４…に、又内周９からは油溝１０，１０…に潤滑
油は流入し、これら油溝４，４…、１０，１０…から摩
擦面３に流れ出て、前記図１の摩擦材１より良好な流体
潤滑状態を呈し得る。As described above, the oil grooves 4, 4 are formed on the outer peripheral side and the inner peripheral side.
, And 10, 10..., Lubricating oil flows from the outer periphery 5 into the oil grooves 4, 4, and from the inner periphery 9 into the oil grooves 10, 10,. , 10, 10... Can flow out to the friction surface 3 and exhibit a better fluid lubrication state than the friction material 1 of FIG.
【００２０】ところで、この摩擦材１はクラッチ板等の
表面に貼着される。又前記図４に示したトルクコンバー
タのロックアップピストン(ホ)に貼着することが出来
る。勿論、フロントカバー側に貼着してもよい。以上述
べたように、本発明の摩擦材は摩擦面に細長い油溝を形
成すると共に、該油溝は半径方向に対して傾斜して設け
たものであり、次のような効果を得ることが出来る。The friction material 1 is adhered to a surface of a clutch plate or the like. Further, it can be attached to the lock-up piston (e) of the torque converter shown in FIG. Of course, it may be attached to the front cover side. As described above, the friction material of the present invention forms the elongated oil groove on the friction surface and the oil groove is provided to be inclined with respect to the radial direction, and the following effects can be obtained. I can do it.
【００２１】[0021]
【発明の効果】本発明の摩擦材は摩擦面に油溝を形成し
たものであり、そして油溝は半径方向ではなく、半径方
向に対して傾斜している為に、摩擦材の回転又は摩擦材
に近接して回る回転体の回転に伴って潤滑油が油溝に流
入することが出来、半強制的に油溝に潤滑油を入れるこ
とが出来る。The friction material of the present invention has an oil groove formed on the friction surface, and the oil groove is inclined not in the radial direction but in the radial direction. The lubricating oil can flow into the oil groove with the rotation of the rotating body that rotates close to the material, and the lubricating oil can be semi-forced into the oil groove.
【００２２】そこで摩擦材を貼着したクラッチ板等が回
転することで油溝に流入した潤滑油は摩擦面に流れ出し
て流体潤滑状態を形成することが出来る。特に油溝の内
側面と摩擦面のとの境界に滑らかなR面又はC面を形成す
るならば、潤滑油はスムーズに流れ出して摩擦面を半強
制潤滑することが出来、摩擦材が係合しないで空転状態
にある引き摺り抵抗は低減されて動力の伝達効率は向上
する。一方、摩擦材の油溝を貫通する場合には、プレス
打抜きにより簡単に加工することが可能である。Then, when the clutch plate or the like on which the friction material is adhered rotates, the lubricating oil flowing into the oil groove flows out to the friction surface to form a fluid lubrication state. In particular, if a smooth R surface or C surface is formed at the boundary between the inner surface of the oil groove and the friction surface, the lubricating oil can smoothly flow out and lubricate the friction surface semi-forcibly, and the friction material will engage. Instead, the drag resistance in the idling state is reduced, and the power transmission efficiency is improved. On the other hand, when penetrating through the oil groove of the friction material, it can be easily processed by press punching.
【図１】本発明の摩擦材を示す実施例。FIG. 1 is an embodiment showing a friction material of the present invention.
【図２】摩擦面に形成した油溝の拡大図。FIG. 2 is an enlarged view of an oil groove formed on a friction surface.
【図３】本発明に係る摩擦材を示す他の実施例。FIG. 3 is another embodiment showing a friction material according to the present invention.
【図４】トルクコンバータの断面図。FIG. 4 is a sectional view of a torque converter.
１ 摩擦材 ２ 中心穴 ３ 摩擦面 ４ 油溝 ５ 外周 ６ 先端 ７ 内側面 ８ 開口 ９ 内周 10 油溝 DESCRIPTION OF SYMBOLS 1 Friction material 2 Center hole 3 Friction surface 4 Oil groove 5 Outer circumference 6 Tip 7 Inner surface 8 Opening 9 Inner circumference 10 Oil groove
───────────────────────────────────────────────────── フロントページの続き (72)発明者 堀 隆司 愛知県安城市藤井町高根10番地 アイシ ン・エィ・ダブリュ株式会社内 (72)発明者 鈴木 拓 福井県武生市池ノ上町38 アイシン・エ ィ・ダブリュ工業株式会社内 (72)発明者 勘山 裕司 福井県武生市池ノ上町38 アイシン・エ ィ・ダブリュ工業株式会社内 (72)発明者 小林 浩二 福井県武生市池ノ上町38 アイシン・エ ィ・ダブリュ工業株式会社内 Ｆターム(参考） 3J056 AA57 AA62 BB12 BE23 CA04 CA09 CA16 GA08 GA12 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takashi Hori 10 Takane, Fujii-machi, Anjo-shi, Aichi Prefecture Inside Aisin AW Co., Ltd.・ Within Wu Kogyo Co., Ltd. F-term (reference) in WWW. 3J056 AA57 AA62 BB12 BE23 CA04 CA09 CA16 GA08 GA12
Claims (4)
状の摩擦材において、摩擦面外周から内側へ延びると共
に先端は摩擦面内に設けた油溝を形成し、そして該油溝
は回転に伴って潤滑油が流入するように半径方向に対し
て傾斜していることを特徴とする摩擦材の油溝形状。1. A ring-shaped friction material adhered to a surface of a clutch plate or the like, which extends inward from an outer periphery of a friction surface and has a tip formed with an oil groove provided in the friction surface, and the oil groove rotates. The oil groove shape of the friction material, wherein the oil groove shape is inclined with respect to the radial direction so that the lubricating oil flows with the oil.
状の摩擦材において、摩擦面内周から外側へ延びると共
に先端は摩擦面内に設けた油溝を形成し、同じく摩擦面
外周から内側へ延びると共に先端は摩擦面内に設けた油
溝を形成し、そして該油溝は回転に伴って潤滑油が流入
するように半径方向に対して傾斜していることを特徴と
する摩擦材の油溝形状。2. A ring-shaped friction material which is adhered to a surface of a clutch plate or the like, extends from the inner periphery of the friction surface to the outside, and has a tip formed with an oil groove provided in the friction surface. A friction material extending inward and having a tip forming an oil groove provided in a friction surface, wherein the oil groove is inclined with respect to a radial direction so that lubricating oil flows in with rotation. Oil groove shape.
きさのR面又はC面を形成した請求項１、又は請求項２記
載の摩擦材の油溝形状。3. The oil groove shape of the friction material according to claim 1, wherein an R surface or a C surface having an appropriate size is formed at a boundary between the inner surface of the oil groove and the friction surface.
請求項２、又は請求項３記載の摩擦材の油溝形状。4. The device according to claim 1, wherein said oil groove is formed through said oil groove.
The oil groove shape of the friction material according to claim 2 or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000383448A JP2002181073A (en) | 2000-12-18 | 2000-12-18 | Oil groove shape for frictional member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000383448A JP2002181073A (en) | 2000-12-18 | 2000-12-18 | Oil groove shape for frictional member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002181073A true JP2002181073A (en) | 2002-06-26 |
Family
ID=18851101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000383448A Pending JP2002181073A (en) | 2000-12-18 | 2000-12-18 | Oil groove shape for frictional member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002181073A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007040525A (en) * | 2005-06-28 | 2007-02-15 | Nsk Warner Kk | Wet clutch friction plate and multiple disc friction clutch apparatus |
| JP2007040526A (en) * | 2005-06-28 | 2007-02-15 | Nsk Warner Kk | Wet clutch friction plate and multiple disc friction clutch apparatus |
| JP2007132362A (en) * | 2005-11-08 | 2007-05-31 | Nsk Warner Kk | Friction plate and wet multi-disk clutch with friction plate |
| JP2007146900A (en) * | 2005-11-24 | 2007-06-14 | Nsk Warner Kk | Wet multiple disc friction clutch device |
| JP2008180314A (en) * | 2007-01-25 | 2008-08-07 | Nsk Warner Kk | Friction plate of wet multiple disk clutch |
| JP2008185116A (en) * | 2007-01-30 | 2008-08-14 | Nsk Warner Kk | Friction plate for wet type multiple disc clutch |
| JP2009023381A (en) * | 2007-07-17 | 2009-02-05 | Xanavi Informatics Corp | Hinge bracket |
| US7984801B2 (en) | 2007-01-16 | 2011-07-26 | Nsk-Warner Kabushiki Kaisha | Friction plate for wet multi-plate clutch |
| US8146725B2 (en) | 2005-12-20 | 2012-04-03 | Nsk-Warner K.K. | Friction plate and wet-type multi-plate clutch having such friction plate |
| JP2013139880A (en) * | 2003-07-14 | 2013-07-18 | Borgwarner Inc | Friction material having oil localization slots |
| WO2014122906A1 (en) * | 2013-02-05 | 2014-08-14 | Ｎｓｋワーナー株式会社 | Friction plate and wet multi-plate clutch provided with friction plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013139880A (en) * | 2003-07-14 | 2013-07-18 | Borgwarner Inc | Friction material having oil localization slots |
| JP2007040525A (en) * | 2005-06-28 | 2007-02-15 | Nsk Warner Kk | Wet clutch friction plate and multiple disc friction clutch apparatus |
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| US8146725B2 (en) | 2005-12-20 | 2012-04-03 | Nsk-Warner K.K. | Friction plate and wet-type multi-plate clutch having such friction plate |
| US8327992B2 (en) | 2005-12-20 | 2012-12-11 | Nsk-Warner K.K. | Friction plate and wet-type multi-plate clutch having such friction plate |
| US8714333B2 (en) | 2005-12-20 | 2014-05-06 | Nsk-Warner K.K. | Friction plate and wet-type multi-plate clutch having such friction plate |
| US7984801B2 (en) | 2007-01-16 | 2011-07-26 | Nsk-Warner Kabushiki Kaisha | Friction plate for wet multi-plate clutch |
| JP2008180314A (en) * | 2007-01-25 | 2008-08-07 | Nsk Warner Kk | Friction plate of wet multiple disk clutch |
| JP2008185116A (en) * | 2007-01-30 | 2008-08-14 | Nsk Warner Kk | Friction plate for wet type multiple disc clutch |
| JP2009023381A (en) * | 2007-07-17 | 2009-02-05 | Xanavi Informatics Corp | Hinge bracket |
| WO2014122906A1 (en) * | 2013-02-05 | 2014-08-14 | Ｎｓｋワーナー株式会社 | Friction plate and wet multi-plate clutch provided with friction plate |
| JP2014169785A (en) * | 2013-02-05 | 2014-09-18 | Nsk Warner Kk | Friction plate and wet multiple disc clutch having friction plate |
| CN105051391A (en) * | 2013-02-05 | 2015-11-11 | Nsk沃纳株式会社 | Friction plate and wet multi-plate clutch provided with friction plate |
| US10260570B2 (en) | 2013-02-05 | 2019-04-16 | Nsk-Warner K.K. | Friction plate and wet-type multiple-disc clutch with friction plate |
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