JP2006153168A - Sealing device - Google Patents

Sealing device Download PDF

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Publication number
JP2006153168A
JP2006153168A JP2004345833A JP2004345833A JP2006153168A JP 2006153168 A JP2006153168 A JP 2006153168A JP 2004345833 A JP2004345833 A JP 2004345833A JP 2004345833 A JP2004345833 A JP 2004345833A JP 2006153168 A JP2006153168 A JP 2006153168A
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drum
piston member
axial direction
sealing device
outer peripheral
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Japanese (ja)
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Eiichi Shimoyama
栄一 下山
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Nok Corp
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Nok Corp
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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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
    • F16H57/0404—Lubricant filters

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  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • General Details Of Gearings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sealing device capable of improving abrasion resistance of a seal member, without biting in the seal member, even if contamination in oil existing in a pressure chamber or an oil chamber moves to the outer peripheral side by centrifugal force. <P>SOLUTION: This sealing device 1 has an outer peripheral side first seal member 71 arranged in a piston member 3 for reciprocating in the shaft direction in a bottomed cylindrical drum 2 and brought into close contact with the drum 2, and a second seal member 73 arranged on a cancel plate 4 installed on the opening side of the drum 2 oppositely to the piston member 3 and brought into close contact with the piston member 3. Capturing members 81 and 82 for capturing foreign matter in the oil, are arranged inside the seal members 71 and 73. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、ドラム内を油圧制御により往復動するピストン部材等に設けられたシール部材により密封性が確保された密封装置に関する。   The present invention relates to a sealing device in which sealing performance is ensured by a sealing member provided on a piston member or the like that reciprocates in a drum by hydraulic control.

自動車の自動変速機用クラッチシステムは、図３に示すように油圧Ｐ１が作用すると、有底円筒形状のドラム１０１内を往復動するピストン部材１０２は、軸方向内側（図上下側）に移動してセパレータプレート１０３を押圧するので、ハブ１０４と係合している湿式クラッチ１０５とセパレータプレート１０３とが摩擦力で係合し、ドラム１０１の回転力をハブ１０４に伝達する。次いで、油圧Ｐ１が解除され油圧Ｐ２が作用するとピストン部材１０２は軸方向外側（図上上側）に移動しセパレータプレート１０３から離れるので湿式クラッチ１０５とセパレータプレート１０３の係合が解除され、ハブ１０４に伝達されているドラム１０１の回転力が切断される。この様にしてクラッチ締結の切り替え作動が行われている。 Clutch system for an automatic transmission of an automobile, when the hydraulic pressure P 1 is applied as shown in FIG. 3, the piston member 102 to reciprocate the bottomed cylindrical shape of the drum 101 is moved, in the axial direction inside (FIG vertical side) Since the separator plate 103 is pressed, the wet clutch 105 engaged with the hub 104 and the separator plate 103 are engaged with each other by a frictional force, and the rotational force of the drum 101 is transmitted to the hub 104. Then, the piston member 102 when the hydraulic pressure P 2 pressure P 1 is released acts on engagement of the wet clutch 105 and the separator plate 103 is released so away from separator plate 103 moves axially outward (drawing upper), the hub The rotational force of the drum 101 transmitted to 104 is cut off. In this way, the clutch engagement switching operation is performed.

即ち、ピストン部材１０２は、ピストン部材１０２の軸方向外側とドラム１０１で形成される圧力室Ｍと、ピストン部材１０２の軸方向内側とキャンセルプレート１０６、ドラム１０１とで形成される油室Ｎとの圧力差が制御されることで軸方向に往復動する。したがって、ピストン部材１０２がドラム１０１内面と密接する部位、およびキャンセルプレート１０６がピストン部材１０２、ドラム１０１の内周面と密接する部位には、高い作用圧力に耐えるためのシール性が要求され、該密接部にはＯリング１１１乃至１１４が設けられている。   That is, the piston member 102 includes a pressure chamber M formed by the outer side in the axial direction of the piston member 102 and the drum 101, and an oil chamber N formed by the inner side in the axial direction of the piston member 102, the cancel plate 106, and the drum 101. It reciprocates in the axial direction by controlling the pressure difference. Therefore, a sealing property for withstanding a high working pressure is required at a portion where the piston member 102 is in close contact with the inner surface of the drum 101 and a portion where the cancel plate 106 is in close contact with the inner peripheral surface of the piston member 102 and the drum 101. O-rings 111 to 114 are provided in close contact portions.

しかし、ドラム１０１とピストン部材１０２とで形成された圧力室Ｍおよびピストン部材１０２とキャンセルプレート１０６、ドラム１０１により形成された油室Ｎを内包するドラム１０１が軸を中心として一体に回転することにより、圧力室Ｍおよび油室Ｎに存する油中のコンタミ等の異物が遠心力で外周側１２１，１２２に移動し外周側に位置するＯリング１１１，１１２に噛み込まれ、Ｏリング１１１，１１２が早期に摩耗する要因となっていた。   However, the drum 101 containing the pressure chamber M formed by the drum 101 and the piston member 102, the piston member 102, the cancel plate 106, and the oil chamber N formed by the drum 101 rotates integrally around the axis. The foreign matter such as contamination in the oil existing in the pressure chamber M and the oil chamber N moves to the outer peripheral sides 121 and 122 by centrifugal force and is bitten by the O-rings 111 and 112 positioned on the outer peripheral side. It was a factor that caused early wear.

また、下記特許文献では、シール性を向上することを目的にシール部材を改良する発明が提案されているが、本発明のシール部材の耐摩耗性を向上した発明については、開示されていない。   Further, in the following patent document, an invention for improving the sealing member for the purpose of improving the sealing performance is proposed, but the invention for improving the wear resistance of the sealing member of the present invention is not disclosed.

特開平１０−１８４８６４号公報Japanese Patent Laid-Open No. 10-184864

本発明は以上の点に鑑み、圧力室若しくは油室に存する油中のコンタミ等の異物が遠心力で外周側に移動してもシール部材に噛み込まれることがなく、よって、シール部材の耐摩耗性の向上を図ることができる密封装置を提供することを目的とする。   In view of the above, the present invention does not bite into the seal member even if foreign matter such as contamination in oil existing in the pressure chamber or the oil chamber moves to the outer peripheral side due to centrifugal force. An object of the present invention is to provide a sealing device capable of improving wear.

上記目的を達成するため、本発明の請求項１にかかる密封装置は、有底円筒形状のドラム内を軸方向に往復動するピストン部材に設けられ前記ドラムと密接する外周側の第一のシール部材と、前記ピストン部材に対向してドラムの開口側に装着されたキャンセルプレートに設けられ前記ピストン部材に密接する第二のシール部材とを備えた密封装置において、前記シール部材より内部に油中の異物を捕捉する捕捉部材が設けられていることを特徴とするものである。   In order to achieve the above object, a sealing device according to claim 1 of the present invention is a first seal on the outer peripheral side that is provided in a piston member that reciprocates in the axial direction inside a bottomed cylindrical drum and is in close contact with the drum. In a sealing device including a member and a second seal member that is provided on a cancel plate mounted on the opening side of the drum so as to face the piston member and is in close contact with the piston member, the sealing member includes oil inside the seal member. A capturing member for capturing the foreign matter is provided.

本発明は、以下の効果を奏する。   The present invention has the following effects.

すなわち、上記構成を備えた本発明の請求項１の密封装置は、外周側に位置するシール部材より内部に捕捉部材が設けられているので、圧力室および油室を内包するドラムが軸を中心として一体に回転し、圧力室および油室に存する油中の異物が遠心力で外周側に移動しても、捕捉部材により捕捉されるのでシール部材は異物を噛み込むことがない。よって、シール部材の耐摩耗性を向上することができる。   That is, in the sealing device according to the first aspect of the present invention having the above configuration, since the capturing member is provided inside the sealing member located on the outer peripheral side, the drum including the pressure chamber and the oil chamber is centered on the shaft. Even if foreign matter in the oil existing in the pressure chamber and the oil chamber moves to the outer peripheral side by centrifugal force, the seal member does not bite the foreign matter because it is caught by the catching member. Therefore, the wear resistance of the seal member can be improved.

以下に図面を参照して、この発明の好適な実施の形態を例示して説明する。ただし、この発明の範囲は、特に限定的記載がないかぎりは、この実施の形態に記載されている内容に限定する趣旨のものではない。   Preferred embodiments of the present invention will be described below with reference to the drawings. However, the scope of the present invention is not intended to be limited to the contents described in this embodiment unless otherwise specified.

図１は、本発明の実施例に係る密封装置１の断面図である。   FIG. 1 is a cross-sectional view of a sealing device 1 according to an embodiment of the present invention.

本発明に係る密封装置１は、図１に示す通り、有底円筒形状のドラム２内に装着されるピストン部材３と、ピストン部材３に対向してドラム２の開口側に装着されたキャンセルプレート４と、ピストン部材３とキャンセルプレート４の間に設けられたリターンスプリング５と、ピストン部材３の外周側に設けられている多板クラッチ装置６とを備えている。   As shown in FIG. 1, a sealing device 1 according to the present invention includes a piston member 3 mounted in a bottomed cylindrical drum 2 and a cancel plate mounted on the opening side of the drum 2 so as to face the piston member 3. 4, a return spring 5 provided between the piston member 3 and the cancel plate 4, and a multi-plate clutch device 6 provided on the outer peripheral side of the piston member 3.

ドラム２は、軸方向内側（図上下側）に開口し、外径円筒部２１、内径円筒部２２および径方向部２３とを有し、径方向部２３の略中央で二部材が結合している。外径円筒部２１は、軸方向外側（図上上側）が内周側に位置し小径円筒部２１Ａとなる階段状となっていて、小径円筒部２１Ａの軸方向内側端部から外周方向に延びる径方向部２１Ｂと径方向部２１Ｂから軸方向内側に延びる大径円筒部２１Ｃとに囲われた部分に後述する多板クラッチ装置６が装着されている。内径円筒部２２は、圧力室Ｍに通じる入口２２Ａと、油室Ｎに通じる入口２２Ｂを有している。径方向部２３は、外径円筒部２１と一体で成形されている外側径方向部２３Ａと、外側径方向部２３Ａの内周側端部から軸方向内側に傾斜している傾斜部２３Ｂと、傾斜部２３Ｂの内周側端部から内周方向に延びる内側径方向部２３Ｃ、および内径円筒部２２と一体で成形され内側径方向部２３Ｃの内周側端部と結合している内径径方向部２３Ｄとを有している。   The drum 2 has an outer cylindrical portion 21, an inner cylindrical portion 22, and a radial portion 23 that are open on the axially inner side (upper and lower sides in the drawing). Yes. The outer diameter cylindrical portion 21 has a stepped shape in which the outer side in the axial direction (upper side in the drawing) is located on the inner peripheral side and becomes a small diameter cylindrical portion 21A, and extends in the outer peripheral direction from the inner end in the axial direction of the small diameter cylindrical portion 21A. A multi-plate clutch device 6 described later is attached to a portion surrounded by the radial portion 21B and a large-diameter cylindrical portion 21C extending inward in the axial direction from the radial portion 21B. The inner cylindrical portion 22 has an inlet 22 </ b> A that communicates with the pressure chamber M and an inlet 22 </ b> B that communicates with the oil chamber N. The radial direction portion 23 is formed of an outer radial direction portion 23A formed integrally with the outer diameter cylindrical portion 21, an inclined portion 23B that is inclined inward in the axial direction from the inner peripheral side end portion of the outer radial direction portion 23A, and Inner diameter radial direction 23C, which is formed integrally with inner diameter direction portion 23C and inner diameter direction portion 23C, is integrally formed with inner diameter direction portion 23C extending in the inner circumference direction from the inner circumference side end portion of inclined portion 23B. Part 23D.

ピストン部材３は、軸方向内側に開口し、外径円筒部３１と内径円筒部３２と径方向部３３とを有する。外径円筒部３１は、軸方向内側に延びる軸方向部３１Ａと、軸方向部３１Ａの軸方向側内側端部から外周方向に延びる径方向部３１Ｂを有し、軸方向部３１Ａがドラム２の小径円筒部２１Ａに摺動し、径方向部３１Ｂが後述する多板クラッチ装置６のセパレートプレート６１と当接するようになっている。軸方向部３１Ａの外周面には凹部３１ａが形成せれていて、凹部３１ａにはドラム２の小径円筒部２１Ａの内周面と密接するように外周側の第一のシール部材であるＯリング７１が挿設されている。また、内径円筒部３２はドラム２の内径円筒部２２に摺動するようになっている。内径円筒部３２の内周面には凹部３２ａが形成されていて、凹部３２ａにはドラム２の内径円筒部２２の外周面と密接するようにＯリング７３が挿設されている。これにより、密封性が確保され、ピストン部材３の軸方向外側とドラム２とで囲われた部分に圧力室Ｍが形成される。径方向部３３は、軸方向部３１と接続している外側径方向部３３Ａと、外側径方向部３３Ａの内周端部から軸方向内側に傾斜する傾斜部３３Ｂと、傾斜部３３Ｂの内周端部から内周方向に延びる内側径方向部３３Ｃとを有し、外側径方向部３３Ａの軸方向外側には油中のコンタミ等の異物を捕捉する第一の捕捉部材８１が設けられていて、ドラム２の外側径方向部２３Ａの軸方向内面に当接している。   The piston member 3 opens to the inside in the axial direction, and has an outer diameter cylindrical portion 31, an inner diameter cylindrical portion 32, and a radial direction portion 33. The outer diameter cylindrical portion 31 includes an axial direction portion 31A extending inward in the axial direction and a radial direction portion 31B extending in the outer peripheral direction from the axially inner end of the axial direction portion 31A. The small diameter cylindrical portion 21A slides, and the radial portion 31B comes into contact with a separate plate 61 of the multi-plate clutch device 6 described later. A concave portion 31a is formed on the outer peripheral surface of the axial portion 31A, and an O-ring 71 which is a first seal member on the outer peripheral side is in close contact with the inner peripheral surface of the small diameter cylindrical portion 21A of the drum 2 in the concave portion 31a. Is inserted. The inner diameter cylindrical portion 32 slides on the inner diameter cylindrical portion 22 of the drum 2. A concave portion 32 a is formed on the inner peripheral surface of the inner diameter cylindrical portion 32, and an O-ring 73 is inserted into the concave portion 32 a so as to be in close contact with the outer peripheral surface of the inner diameter cylindrical portion 22 of the drum 2. Thereby, sealing performance is ensured, and the pressure chamber M is formed in a portion surrounded by the outer side in the axial direction of the piston member 3 and the drum 2. The radial portion 33 includes an outer radial portion 33A connected to the axial portion 31, an inclined portion 33B inclined inward in the axial direction from an inner peripheral end portion of the outer radial portion 33A, and an inner periphery of the inclined portion 33B. A first catching member 81 that catches foreign matter such as contaminants in the oil is provided on the outer side in the axial direction of the outer radial direction portion 33A. The drum 2 is in contact with the inner surface in the axial direction of the outer radial direction portion 23A.

キャンセルプレート４は、ピストン部材３に対向してハウジング２の開口部側である軸方向内側に装着されていて、外周側端部４１と、内周側端部４２と、外周側端部４１から内周方向に向かって円弧状に延びる湾曲部４３と、湾曲部４３の内周側端部から軸方向内側に延びる軸方向部４４と、軸方向部４４の軸方向内側端部から内周方向に向かって延び内周側端部４２に繋がる径方向部４５とを有する。外周側端部４１は、ピストン部材３の軸方向部３１Ａに圧接し、圧接面に形成されている凹部４１ａには第二のシール部材であるＯリング７２が挿設されている。内周側端部４２は、ドラム２の内径円筒部２２に対し着脱自在に設定してあると共に、端面に形成されている凹部４２ａにはＯリング７４が挿設されている。これにより密封性が確保され、ピストン部材３の軸方向内側、キャンセルプレート４、およびドラム２とで囲われた部分に油室Ｎが形成される。また、湾曲部４３の軸方向外側には油中のコンタミ等の異物を捕捉する第二の捕捉部材８２が設けられていて、ピストン部材３の外側径方向部３３Ａの軸方向内面に当接している。   The cancel plate 4 is mounted on the inner side in the axial direction on the opening side of the housing 2 so as to face the piston member 3, and from the outer peripheral side end 41, the inner peripheral side end 42, and the outer peripheral side end 41. A curved portion 43 extending in an arc shape toward the inner circumferential direction, an axial direction portion 44 extending inward in the axial direction from the inner circumferential side end portion of the curved portion 43, and an inner circumferential direction from the axially inner end portion of the axial direction portion 44. And a radial portion 45 extending toward the inner periphery and connected to the inner peripheral end portion 42. The outer peripheral side end portion 41 is in pressure contact with the axial direction portion 31A of the piston member 3, and an O-ring 72, which is a second seal member, is inserted into a recess 41a formed in the pressure contact surface. The inner peripheral side end portion 42 is detachably set with respect to the inner diameter cylindrical portion 22 of the drum 2, and an O-ring 74 is inserted into a concave portion 42 a formed on the end surface. As a result, sealing performance is secured, and an oil chamber N is formed in a portion surrounded by the axially inner side of the piston member 3, the cancel plate 4, and the drum 2. Further, a second capturing member 82 that captures contaminants such as contaminants in the oil is provided on the outer side in the axial direction of the curved portion 43, and is in contact with the inner surface in the axial direction of the outer radial direction portion 33 </ b> A of the piston member 3. Yes.

リターンスプリング５は、ピストン部材３の軸方向内側とキャンセルプレート４の軸方向外側の間に設けられ、ピストン部材３を軸方向外側、すなわち、キャンセルプレート４から離れる方向に付勢している。   The return spring 5 is provided between the inner side in the axial direction of the piston member 3 and the outer side in the axial direction of the cancel plate 4, and urges the piston member 3 in the outer side in the axial direction, that is, in a direction away from the cancel plate 4.

多板クラッチ装置６は、複数の並設されたセパレートプレート６１とその間に配設された湿式クラッチ６２からなり、ピストン部材３の外径円筒部３１の軸方向内側であって、ドラム２の径方向部２１Ｂと大径円筒部２１Ｃとに囲われた部分に装着されている。多板クラッチ装置６は、ドラム２の内径円筒部２２に形成されている入口２２Ａから油圧Ｐ１が作用すると圧力室Ｍの内圧が相対的に油室Ｎの内圧より高くなるので、ピストン部材３が軸方向内側に移動し外径円筒部３１に形成されている径方向部３１Ｂがセパレートプレート６１に当接し、セパレートプレート６１を軸方向内側に押し下げ、セパレートプレート６１と湿式クラッチ６２とを摩擦力で係合させ、湿式クラッチ６２と係合しているハブ６３にドラム３の回転力を伝達するようになっている。逆に、油圧Ｐ１を解除し内径円筒部２２に形成されている入口２２Ｂから油圧Ｐ２を作用させ圧力室Ｍの内圧を相対的に油室Ｎの内圧より低くすると、リターンスプリング５の付勢力でピストン部材３が軸方向外側に押し上げられるので、セパレートプレート６１と湿式クラッチ６２の係合が解除され、ハブ６３に伝達されているドラム２の回転力が解除されるようになっている。 The multi-plate clutch device 6 includes a plurality of side-by-side separate plates 61 and a wet clutch 62 disposed between the plates, and is located on the inner side in the axial direction of the outer diameter cylindrical portion 31 of the piston member 3, and the diameter of the drum 2. It is attached to a portion surrounded by the direction portion 21B and the large diameter cylindrical portion 21C. Multiple disc clutch device 6, since the internal pressure of the pressure chamber M is higher than the internal pressure of the relatively oil chamber N when the hydraulic pressure P 1 is applied from the inlet 22A formed on the inner diameter cylindrical portion 22 of the drum 2, the piston member 3 Moves inward in the axial direction, and the radial portion 31B formed in the outer cylindrical portion 31 abuts on the separate plate 61, pushes the separate plate 61 inward in the axial direction, and causes the separate plate 61 and the wet clutch 62 to frictional force. And the rotational force of the drum 3 is transmitted to the hub 63 engaged with the wet clutch 62. In contrast, lower than the internal pressure of the relatively oil chamber N the internal pressure of the pressure chamber M by the action of pressure P 2 from the inlet 22B formed in the inner diameter cylindrical portion 22 to release the hydraulic pressure P 1, with a return spring 5 Since the piston member 3 is pushed upward in the axial direction by the force, the engagement between the separate plate 61 and the wet clutch 62 is released, and the rotational force of the drum 2 transmitted to the hub 63 is released.

上記構成において、圧力室Ｍと油室Ｎを内包するドラム２が軸を中心として一体に回転すると、遠心力により圧力室Ｍおよび油室Ｎに存する油中のコンタミが外周側に移動するが、ピストン部材３の軸方向部３１Ａの凹部３１ａに挿設されたＯリング７１より内部に設けられている第一の捕捉部材８１、およびキャンセルプレート４の外周側端部４１の凹部４１ａに挿設されたＯリング７２より内部に設けられている第二の捕捉部材８２によりコンタミが捕捉されるので、Ｏリング７１，７２がコンタミを噛み込むことがなく、したがってＯリング７１，７２の耐摩耗性を向上することが可能となる。   In the above configuration, when the drum 2 including the pressure chamber M and the oil chamber N rotates integrally around the shaft, contamination in the oil existing in the pressure chamber M and the oil chamber N is moved to the outer peripheral side by centrifugal force. The first capture member 81 provided inside the O-ring 71 inserted in the recess 31a of the axial direction portion 31A of the piston member 3 and the recess 41a of the outer peripheral side end 41 of the cancel plate 4 are inserted. Further, since the contamination is captured by the second capturing member 82 provided inside the O-ring 72, the O-rings 71 and 72 do not bite the contamination, so that the wear resistance of the O-rings 71 and 72 is improved. It becomes possible to improve.

図２は、本発明に係る別の実施例である。捕捉部材８１，８２を設ける位置をシール部材であるＯリング７１，７２が挿設される凹部３１ａ，４１ａに並設しＯリング７１，７２より内部にした場合である。捕捉部材８１，８２とＯリング７１，７２の位置が近接しているので、コンタミの捕捉をより一層図ることが可能となる。   FIG. 2 shows another embodiment according to the present invention. This is a case where the capturing members 81 and 82 are provided in parallel with the recesses 31a and 41a into which the O-rings 71 and 72, which are seal members, are inserted and located inside the O-rings 71 and 72. Since the positions of the capturing members 81 and 82 and the O-rings 71 and 72 are close to each other, it becomes possible to further capture contamination.

捕捉部材８１，８２に用いられる材質としては、発泡材、不織布が最適であるが、その他の材質であっても良い。   As the material used for the capturing members 81 and 82, a foamed material and a non-woven fabric are optimal, but other materials may be used.

本発明の実施例に係る密封装置の断面図Sectional drawing of the sealing device which concerns on the Example of this invention 本発明の別の実施例に係る図１のＸ部の要部断面図Sectional drawing of the principal part of the X section of FIG. 1 which concerns on another Example of this invention. 従来例に係る密封装置の断面図Sectional drawing of the sealing device which concerns on a prior art example

符号の説明Explanation of symbols

１ 密封装置
２ ドラム
２１，２１Ａ，２１Ｃ，２２，３１，３２ 円筒部
２３，２３Ａ，２３Ｃ，２３Ｄ，３１Ｂ，３３Ａ，３３Ｃ，４５ 径方向部
２３Ｂ，３３Ｂ 傾斜部
２２Ａ，２２Ｂ 入口
３ ピストン部材
３１Ａ，４４ 軸方向部
４１Ａ，４２Ａ 端面
３１ａ，３２ａ，４１ａ，４２ａ 凹部
４ キャンセルプレート
４１，４２ 端部
４３ 湾曲部
５ リターンスプリング
６ 多板クラッチ装置
６１ セパレートプレート
６２ 湿式クラッチ
６３ ハブ
７１，７２，７３，７４ Ｏリング（シール部材）
８１，８２ 捕捉部材
Ｍ 圧力室
Ｎ 油室 DESCRIPTION OF SYMBOLS 1 Sealing device 2 Drum 21, 21A, 21C, 22, 31, 32 Cylindrical part 23, 23A, 23C, 23D, 31B, 33A, 33C, 45 Radial direction part 23B, 33B Inclined part 22A, 22B Inlet 3 Piston member 31A, 44 Axial portion 41A, 42A End face 31a, 32a, 41a, 42a Concavity 4 Cancel plate 41, 42 End 43 Curved portion 5 Return spring 6 Multi-plate clutch device 61 Separate plate 62 Wet clutch 63 Hub 71, 72, 73, 74 O-ring (seal member)
81,82 Capture member M Pressure chamber N Oil chamber

Claims (1)

有底円筒形状のドラム内を軸方向に往復動するピストン部材に設けられ前記ドラムと密接する外周側の第一のシール部材と、前記ピストン部材に対向してドラムの開口側に装着されたキャンセルプレートに設けられ前記ピストン部材に密接する第二のシール部材とを備えた密封装置において、
前記シール部材より内部に油中の異物を捕捉する捕捉部材が設けられていることを特徴とする密封装置。 A first seal member on the outer peripheral side that is provided in a piston member that reciprocates in the axial direction in a bottomed cylindrical drum, and a cancel mounted on the opening side of the drum facing the piston member In a sealing device comprising a second seal member provided on a plate and in close contact with the piston member,
A sealing device, wherein a capturing member that captures foreign matter in oil is provided inside the sealing member.
JP2004345833A 2004-11-30 2004-11-30 Sealing device Pending JP2006153168A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004345833A JP2006153168A (en) 2004-11-30 2004-11-30 Sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004345833A JP2006153168A (en) 2004-11-30 2004-11-30 Sealing device

Publications (1)

Publication Number Publication Date
JP2006153168A true JP2006153168A (en) 2006-06-15

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Country Link
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008256056A (en) * 2007-04-04 2008-10-23 Nok Corp Piston for automatic transmission
KR101785936B1 (en) * 2015-11-19 2017-10-18 현대 파워텍 주식회사 Auto transmission
CN108691918A (en) * 2017-03-29 2018-10-23 本田技研工业株式会社 Clutch configuration body
CN110894859A (en) * 2018-09-13 2020-03-20 舍弗勒技术股份两合公司 Double clutch device with full hydraulic actuation for a drive train of a motor vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02296072A (en) * 1989-05-09 1990-12-06 Aisin Aw Co Ltd Hydraulic device in automatic transmission
JPH0828591A (en) * 1994-07-13 1996-02-02 Honda Motor Co Ltd Oil feed and discharge structure of canceller for hydraulic clutch

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02296072A (en) * 1989-05-09 1990-12-06 Aisin Aw Co Ltd Hydraulic device in automatic transmission
JPH0828591A (en) * 1994-07-13 1996-02-02 Honda Motor Co Ltd Oil feed and discharge structure of canceller for hydraulic clutch

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008256056A (en) * 2007-04-04 2008-10-23 Nok Corp Piston for automatic transmission
KR101785936B1 (en) * 2015-11-19 2017-10-18 현대 파워텍 주식회사 Auto transmission
CN108691918A (en) * 2017-03-29 2018-10-23 本田技研工业株式会社 Clutch configuration body
CN108691918B (en) * 2017-03-29 2020-03-06 本田技研工业株式会社 Clutch structure
CN110894859A (en) * 2018-09-13 2020-03-20 舍弗勒技术股份两合公司 Double clutch device with full hydraulic actuation for a drive train of a motor vehicle

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