JPS61175328A - Piston made of metal plate for transmission - Google Patents
Piston made of metal plate for transmissionInfo
- Publication number
- JPS61175328A JPS61175328A JP60018145A JP1814585A JPS61175328A JP S61175328 A JPS61175328 A JP S61175328A JP 60018145 A JP60018145 A JP 60018145A JP 1814585 A JP1814585 A JP 1814585A JP S61175328 A JPS61175328 A JP S61175328A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- oil seal
- spring seat
- hole
- plate
- 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.)
- Granted
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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
- F16J15/3236—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips with at least one lip for each surface, e.g. U-cup packings
-
- 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
- F16D25/00—Fluid-actuated clutches
- F16D25/12—Details not specific to one of the before-mentioned types
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
- F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は車輌における変速機用の板金製ピストンに係り
、殊に該板金製ピストンを収容せるクラッチドラムに対
する内側オイルシール機構に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a sheet metal piston for a transmission in a vehicle, and more particularly to an inner oil seal mechanism for a clutch drum housing the sheet metal piston.
従来技術とその問題点
例えば特開昭49−第68159号に示されるように従
来の変速機用の板金製ピストン1(第1図参照)はクラ
ッチドラム4内に収嵌し、該クラッチドラム内底に導入
した油圧をピストンlのピストン板2の底面に作用させ
てこれを復帰用バネに抗し押上げ、該押上げに伴いピス
トン板周囲のリム3の端部でクラッチドラム4のスプラ
イン形成リム4′内に嵌装したクラッチ板を押圧しクラ
ッチ結合状態を得る構成となっている。そしてリム外周
面にオイルシールリング5を配し、該リング5をクラッ
チドラム4のスプライン形成リム4′の内周面に密着さ
せ、ピストン外側におけるオイルシールを図ると共に、
ピストン板2中央に穿けられた貫装孔6の内周面にオイ
ルシールリング7を配し、該り、ング7を上記貫装孔6
に貫装されたクラッチドラム4の軸挿通筒8の外周面へ
密着すせピストン内側におけるオイルシールを図る構成
となっている。Prior Art and its Problems For example, as shown in Japanese Patent Application Laid-open No. 49-68159, a conventional sheet metal piston 1 for a transmission (see FIG. 1) is fitted into a clutch drum 4, and The hydraulic pressure introduced at the bottom is applied to the bottom surface of the piston plate 2 of the piston l to push it up against the return spring, and as it is pushed up, a spline is formed on the clutch drum 4 at the end of the rim 3 around the piston plate. The clutch plate fitted in the rim 4' is pressed to obtain a clutch engaged state. Then, an oil seal ring 5 is arranged on the outer peripheral surface of the rim, and the ring 5 is brought into close contact with the inner peripheral surface of the spline-formed rim 4' of the clutch drum 4 to achieve an oil seal on the outside of the piston.
An oil seal ring 7 is arranged on the inner peripheral surface of the through hole 6 bored in the center of the piston plate 2, and the ring 7 is inserted into the through hole 6.
The piston is configured to tightly contact the outer circumferential surface of the shaft insertion tube 8 of the clutch drum 4 inserted therethrough, thereby creating an oil seal inside the piston.
然るに従来上記外側オイルシールリング5及び内側オイ
ルシールリング7の取付に際しては、別部品として断面
り字形の取付リング9a、9bを準備し、これを図示の
ようにクラッチドラム4のボディに圧入し、該取付リン
グ9a、9bの立上りとドラムボディの屈曲部との間で
環状溝を形成し、該環状溝に上記オイルシールリング5
,7を嵌着する構造を採っており、内、外オイルシール
リング5,7の何れにしても別部品たる取付リングの製
作が必要となり、更にはリング圧入の組立工数を要−し
、これに伴いコスト増加を招来する。Conventionally, however, when installing the outer oil seal ring 5 and the inner oil seal ring 7, mounting rings 9a and 9b each having an angled cross section are prepared as separate parts, and these are press-fitted into the body of the clutch drum 4 as shown in the figure. An annular groove is formed between the rising edges of the mounting rings 9a and 9b and the bent portion of the drum body, and the oil seal ring 5 is inserted into the annular groove.
, 7 is fitted, and both the inner and outer oil seal rings 5 and 7 require the production of a mounting ring as a separate part, and furthermore, it requires assembly man-hours for press-fitting the rings. This will lead to an increase in costs.
又別部品たる取付リングの圧入機構を採るため機械的信
頼性低下の要因ともなる。Furthermore, since a press-fitting mechanism is used for the mounting ring, which is a separate component, mechanical reliability may be reduced.
発明の目的
而して、本発明は上記オイルシール機構、殊に上記内側
オイルシール機構に関して改善された変速機用板金製ピ
ストンを提供する。即ち、前記内側オイルシール機構の
形成を板金製ピストンの板金ボディ部分と板金製ビスト
ン復帰用ノくネを支承するバネ座との活用に係わらしめ
、従来の如き取付リングを使用しないリングレス機構を
構成して部品及び組立工数の削減を図りつつ、高信頼の
オイルシール機構の提供を可能にしたものである。SUMMARY OF THE INVENTION As an object of the invention, the present invention provides a sheet metal piston for a transmission which is improved with regard to the oil seal mechanism, particularly the inner oil seal mechanism. That is, the inner oil seal mechanism is formed by utilizing the sheet metal body portion of the sheet metal piston and the spring seat that supports the sheet metal piston return screw, thereby creating a ringless mechanism that does not use the conventional mounting ring. This makes it possible to provide a highly reliable oil seal mechanism while reducing parts and assembly man-hours.
発明の構成
本゛発明は上記目的を達成すべく構成されたものであっ
て、後述する実施例から理解できるように、ピストン板
に該ピストン板と同心円となるバネ座を一体に組付け、
ピストン板の中央の貫装孔とバネ座中央に設けた貫装孔
とを同心円に連通させると共に、ピストン板の貫装孔周
縁に設けた環状リップと、バネ座の貫装孔周縁に設けた
環状リップとにより上記両貫装孔の中心へ向け開口した
環状溝を形成し、該環状溝にオイルシールリングを嵌着
保持させ、前記従来の取付リングの圧入機構を採らずに
クラッチドラムに対する完全なオイルシール機構を構成
できるようにした、簡潔にして且つ合目的的な前記内側
オイルシール機構を提供したものである。Structure of the Invention The present invention is constructed to achieve the above object, and as can be understood from the embodiments described later, a spring seat concentric with the piston plate is integrally assembled to the piston plate,
The through-hole at the center of the piston plate and the through-hole provided at the center of the spring seat are concentrically connected, and the annular lip provided at the periphery of the through-hole of the piston plate and the through-hole provided at the periphery of the spring seat are connected concentrically. The annular lip forms an annular groove that opens toward the center of both through holes, and an oil seal ring is fitted and held in the annular groove, so that the oil seal ring can be completely attached to the clutch drum without using the conventional press-fitting mechanism of the mounting ring. The present invention provides the above-mentioned inner oil seal mechanism which is simple and purposeful, and which enables a simple and purposeful oil seal mechanism to be constructed.
発明の実施例
以下本発明の実施例を第2図乃至第5図に基いて詳述す
る。Embodiments of the Invention Below, embodiments of the present invention will be described in detail with reference to FIGS. 2 to 5.
同図において、11は変速機におけるクラッチ板作動用
の板金製ピストンを示す、該板金製ピストン11にはプ
レス成形にてピストン板12の周囲にリム13を折曲形
成し、これをクラッチ板押圧手段とする。該押圧を良好
に行わせるため、リム部先端に内側へ折曲された環状の
コ形折曲部を形成し、これをクラッチ板押圧部4Qとす
る。又ピストン板12の中央部には貫装孔16を穿け、
該貫装孔16の周囲にリム13と同方向のフランジ20
を折曲形成し、該フランジ20の先端を中心方向に]形
に曲げ環状リップ21を形成する。In the same figure, reference numeral 11 indicates a sheet metal piston for actuating a clutch plate in a transmission.A rim 13 is bent around a piston plate 12 by press molding on the sheet metal piston 11, and this is used to press the clutch plate. Use as a means. In order to perform this pressing well, an annular U-shaped bent portion bent inward is formed at the tip of the rim portion, and this is used as a clutch plate pressing portion 4Q. Also, a through hole 16 is bored in the center of the piston plate 12,
A flange 20 is provided around the through hole 16 in the same direction as the rim 13.
The tip of the flange 20 is bent toward the center to form an annular lip 21.
他方線ピストン11の貫装孔16と同心円となる貫装孔
33を中央部に有する板金部の円形バネ座22を形成し
、該円形バネ座22の貫装孔33の周囲にフランジ23
を折曲形成し、該フランジ23の先端を中心方向に]形
に曲げ環状リップ24を形成する。On the other hand, a circular spring seat 22 of a sheet metal part having a through hole 33 concentric with the through hole 16 of the piston 11 in the center is formed, and a flange 23 is formed around the through hole 33 of the circular spring seat 22.
The tip of the flange 23 is bent toward the center to form an annular lip 24.
更にバネ座22の周囲にフランジ23との間で環状路2
5を形成するバネ受形成壁26を折曲形成し、該バネ受
形成壁26を間隔的に直径方向へ半円筒形に曲げ出し、
よってバネ座22の周囲にフランジ23とバネ受形成壁
26と両者間を連結する座板28にて画成され、且つ環
状路25によって互いに連通されたピストン復帰バネ毎
のバネ受室27を形成する。Furthermore, an annular path 2 is formed around the spring seat 22 between the flange 23 and the flange 23.
The spring receiving forming wall 26 forming the spring receiving forming wall 26 is bent at intervals, and the spring receiving forming wall 26 is bent into a semi-cylindrical shape in the diametrical direction at intervals,
Therefore, a spring receiving chamber 27 for each piston return spring is formed around the spring seat 22, defined by the flange 23, the spring receiving forming wall 26, and the seat plate 28 connecting the two, and communicated with each other by the annular path 25. do.
斯くして形成されたバネ座22をピストン11内に収め
座板28をピストン板12に重ねスポット溶接にて一体
構造とする。同時にピストン11のフランジ20の外周
面にバネ座22の7ランジ23を嵌合して貫装孔16,
33を同心に連通させると共に、環状リップ21.24
を互いに対向させ、両リップ21.24間に貫装孔16
,33の中心へ向け開口した環状溝29を形成し、該環
状溝29に内側オイルシールリング17を嵌着保持させ
る。即ち、バネ座22をオイルシール機構形成要素とし
て兼用する。The spring seat 22 thus formed is placed inside the piston 11, and the seat plate 28 is overlapped with the piston plate 12 and spot welded to form an integral structure. At the same time, the seven flange 23 of the spring seat 22 is fitted to the outer peripheral surface of the flange 20 of the piston 11, and the through hole 16,
33 concentrically communicate with each other, and the annular lips 21 and 24
facing each other, and a through hole 16 is formed between both lips 21 and 24.
, 33 is formed, and the inner oil seal ring 17 is fitted and held in the annular groove 29. That is, the spring seat 22 also serves as an oil seal mechanism forming element.
又本発明は、前記の如くピストン板12の周囲にリム1
3を折曲形成してクラッチ板抑圧手段とすると共に、該
リム13の基部を内周面側へU字形に曲げ込み、リム外
周面に該U字曲壁31による環状溝32を形成し、該環
状溝32に外側オイルシールリング15を嵌着する。Further, the present invention provides a rim 1 around the piston plate 12 as described above.
3 to form a clutch plate suppressing means, the base of the rim 13 is bent into a U-shape toward the inner peripheral surface, and an annular groove 32 is formed by the U-shaped curved wall 31 on the outer peripheral surface of the rim, The outer oil seal ring 15 is fitted into the annular groove 32.
好ましくは上記U字曲壁31はその曲げ込み片が第2図
に示す如く、ピストン板12の外周縁部表面へ折り重な
る構造とする。Preferably, the U-shaped curved wall 31 has a structure in which a bent piece thereof is folded over the outer circumferential edge surface of the piston plate 12, as shown in FIG.
第5図は上記の如く構成された板金製のピストン11を
同様に板金製のクラッチドラム14内に組込んだ状態を
示す。FIG. 5 shows a state in which the piston 11 made of sheet metal and constructed as described above is assembled into a clutch drum 14 also made of sheet metal.
クラッチドラム14は底板36にスプライン形成リム1
4’が折曲形成され、該スプライン形成リム14′の内
周面にクラッチ板が組込まれ、上記板金製のピストン1
1のリム13端郡上に配置される。The clutch drum 14 has a spline formed rim 1 on the bottom plate 36.
4' is bent and formed, and a clutch plate is incorporated into the inner circumferential surface of the spline-formed rim 14', and the piston 1 made of the sheet metal
The rim 13 of the rim 1 is disposed on the edge of the rim 1.
図中38はクラッチ板を形成するドライブプレート+
39は同ドリブンプレートを示し、40はリテイニン
グプレート、41は上記クラッチ板の離脱を防止するス
ナップリングを示す。In the figure, 38 is a drive plate that forms a clutch plate.
39 is the driven plate, 40 is a retaining plate, and 41 is a snap ring that prevents the clutch plate from coming off.
上記クラッチドラム14の中央には軸挿通筒18が折曲
形成され、該軸挿通筒18の外周面へ上記板金製ピスト
ン11とバネ座22の組立体をその貫装孔16,33を
以って貫装する。A shaft insertion tube 18 is bent in the center of the clutch drum 14, and the assembly of the sheet metal piston 11 and spring seat 22 is inserted into the outer peripheral surface of the shaft insertion tube 18 through its through holes 16, 33. and penetrate it.
上記の如くしてクラッチドラム14内底にピストン11
とバネ座22の組立体が収嵌され、その内側オイルシー
ルリング17を上記軸挿通筒18の外周面に密着させつ
つ、上記外側オイルシールリング15をスプライン形成
リム14′の基部内周面、即ちスプラインが延在しない
リム14’の基部内周面へ密着させる。As described above, the piston 11 is attached to the inner bottom of the clutch drum 14.
The assembly of the spring seat 22 is fitted, and while the inner oil seal ring 17 is brought into close contact with the outer circumferential surface of the shaft insertion tube 18, the outer oil seal ring 15 is attached to the inner circumferential surface of the base of the spline-forming rim 14', That is, it is brought into close contact with the inner circumferential surface of the base of the rim 14' where the spline does not extend.
而して、クラッチドラム14内底区導入した油ラッチド
ラム14のスプライン形成リム14’内に組込んだクラ
ッチ板たるドライブプレート38及びドリブンプレート
39を押圧しクラッチの結合状態を形成する。Then, the drive plate 38 and the driven plate 39, which are clutch plates incorporated in the spline forming rim 14' of the oil latch drum 14 introduced into the inner bottom section of the clutch drum 14, are pressed to form the engaged state of the clutch.
34はピストン復帰バネを示し、同バネ34はその一端
が前記ピストン11に組付けられたバネ座22のバネ受
室27に収容された座板2Bに支持され、他端はクラッ
チドラム14の軸挿通筒18に取付けた別のバネ座37
に支持され、両バネ座22.37間に圧縮状態に弾装し
その弾発力により板金製ピストン11に常時復帰弾力を
与える。34 indicates a piston return spring, one end of which is supported by the seat plate 2B accommodated in the spring receiving chamber 27 of the spring seat 22 assembled to the piston 11, and the other end supported by the shaft of the clutch drum 14. Another spring seat 37 attached to the insertion tube 18
It is supported in a compressed state between both spring seats 22 and 37, and its elastic force always gives return elasticity to the sheet metal piston 11.
同ピストン11は前記油圧により該バネ34の弾発力に
抗しクラッチ板を押上げる方向に移動され、油圧解除に
よりバネ34の弾発力に従いドラム内底へ復帰し、クラ
ッチな解除状態とする。The piston 11 is moved by the hydraulic pressure in the direction of pushing up the clutch plate against the elastic force of the spring 34, and when the hydraulic pressure is released, it returns to the inner bottom of the drum according to the elastic force of the spring 34, and the clutch is released. .
上記板金製ピストン11の内側オイルシールリング17
及び外側オイルシールリング15は上記ピストン板12
の底面へ作用する油圧を良好に封鎖し、ピストン11を
駆動する。Inner oil seal ring 17 of the above-mentioned sheet metal piston 11
and the outer oil seal ring 15 is connected to the piston plate 12.
The piston 11 is driven by effectively sealing off the hydraulic pressure acting on the bottom surface of the piston 11.
発明の効果
而して、本発明は以上詳述したように、変速機用板金製
ピストンにおけるオイルシール機構、殊に内側オイルシ
ール機構に関し、その製造面及び機能面の両面で改善さ
れた同板金製ピストンを提供できる。Effects of the Invention As detailed above, the present invention relates to an oil seal mechanism, particularly an inner oil seal mechanism, in a sheet metal piston for a transmission, and provides a sheet metal sheet metal that is improved in both manufacturing and functional aspects. We can provide manufactured pistons.
即ち、本発明は内側オイルシール機構の形成を板金製ピ
ストンの板金ボディ部分と板金製ピストン復帰用バネを
支承するバネ座との活用に係わらしめ、ピストン板に該
ピストン板と同心円となるバネ座を一体に組付け、ピス
トン板の中央の貫装孔とバネ座中央に設けた貫装孔とを
同心円に連通させると共に、ピ、ストン板の貫装孔周縁
に設けた環状リップと、バネ座の貫装孔周縁に設けた環
状リップとにより上記両貫装孔の中心へ向け開口した環
状溝を形成し、該環状溝にオイルシールリングを嵌着保
持させる構成としたので、従来の取付リングを使用しな
いリングレス機構を構成して部品及び組立工数の削減を
図りつつ、高信頼のオイルシール機構の提供を可能にし
たものである。That is, the present invention relates the formation of the inner oil seal mechanism to the use of a sheet metal body portion of a sheet metal piston and a spring seat that supports a sheet metal piston return spring, and a spring seat that is concentric with the piston plate on the piston plate. The through hole in the center of the piston plate and the through hole provided in the center of the spring seat are connected concentrically, and the annular lip provided around the through hole in the piston plate and the spring seat are assembled together. An annular lip provided on the periphery of the through hole forms an annular groove that opens toward the center of both the through holes, and the oil seal ring is fitted and held in the annular groove, so that it is not necessary to use a conventional mounting ring. By configuring a ringless mechanism that does not use a ring, it is possible to reduce parts and assembly man-hours, and to provide a highly reliable oil seal mechanism.
即ち、従来の如きピストン板に圧入する取付リングの準
備及び同圧入工程を削減して板金製ピストンと内側オイ
ルシールリングの一体構造化が図れ、構成簡素にして的
確なオイルシール効果が得られ、従来の別部品たる取付
リング圧入に伴なう機械的信頼性低下の要因を形成せず
、高信頼のオイルシール機構が提供でき、加えて車輌に
おいて要求の高いコスト削減と軽量化が図れる。That is, it is possible to reduce the conventional process of preparing the mounting ring to be press-fitted into the piston plate and press-fitting it, and to achieve an integral structure of the sheet metal piston and the inner oil seal ring, and to obtain an accurate oil sealing effect with a simple configuration. A highly reliable oil seal mechanism can be provided without causing mechanical reliability deterioration associated with the conventional press-fitting of a separate mounting ring, and in addition, it is possible to achieve cost reduction and weight reduction, which are highly demanded in vehicles.
第1図は従来の変速機用の板金製ピストンの断面図、第
2図以降は本発明の実施例を示し、第2図は同実施例た
る変速機用の板金製ピストンの断面図、第3図は同ピス
トンの分解斜視図、第4図はオイルシールリングを外し
て示す同ピストンの組立斜視図、第5図は同ピストンを
クラッチドラムに組込んだ変速機の要部を示す断面図で
ある。
11・・・板金製のピストン、12・・・ピストン板、
14・・・クラッチドラム、16.33・・・貫装孔、
17・・・内側オイルシールリング、18・・・軸挿通
筒、22・・・バネ座、21.24・・・環状リップ、
26・・・バネ受形成壁、27・・・バネ受室、28・
・・座板、29・・・環状溝、34−・・ピストン復帰
バネ。
第11!!
第3図
第4図
第5図Fig. 1 is a sectional view of a conventional sheet metal piston for a transmission, and Fig. 2 and subsequent figures show embodiments of the present invention. Figure 3 is an exploded perspective view of the piston, Figure 4 is an assembled perspective view of the piston with the oil seal ring removed, and Figure 5 is a sectional view showing the main parts of a transmission in which the piston is assembled into a clutch drum. It is. 11... Piston made of sheet metal, 12... Piston plate,
14... Clutch drum, 16.33... Penetration hole,
17...Inner oil seal ring, 18...Shaft insertion tube, 22...Spring seat, 21.24...Annular lip,
26... Spring receiving forming wall, 27... Spring receiving chamber, 28...
... Seat plate, 29... Annular groove, 34-... Piston return spring. 11th! ! Figure 3 Figure 4 Figure 5
Claims (2)
を一体に組付け、ピストン板の中央の貫装孔とバネ座中
央に設けた貫装孔とを同心円に連通させると共に、ピス
トン板の貫装孔周縁に設けた環状リップと、バネ座の貫
装孔周縁に設けた環状リップとにより上記両貫装孔の中
心へ向け開口した環状溝を形成し、該環状溝にオイルシ
ールリングを嵌着保持させたことを特徴とする変速機用
の板金製ピストン。(1) A spring seat that is concentric with the piston plate is integrally assembled on the piston plate, and the through hole in the center of the piston plate and the through hole provided in the center of the spring seat are concentrically connected, and the An annular lip provided at the periphery of the through hole and an annular lip provided at the periphery of the through hole of the spring seat form an annular groove opening toward the center of both the through holes, and an oil seal ring is installed in the annular groove. A sheet metal piston for a transmission, which is characterized by being fitted and retained.
ネ毎の複数のバネ受室を有することを特徴とする特許請
求の範囲第1項記載の発明。(2) The invention according to claim 1, wherein the spring seat has a plurality of spring receiving chambers for each piston return spring arranged concentrically.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60018145A JPS61175328A (en) | 1985-01-31 | 1985-01-31 | Piston made of metal plate for transmission |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60018145A JPS61175328A (en) | 1985-01-31 | 1985-01-31 | Piston made of metal plate for transmission |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61175328A true JPS61175328A (en) | 1986-08-07 |
JPH0118302B2 JPH0118302B2 (en) | 1989-04-05 |
Family
ID=11963439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60018145A Granted JPS61175328A (en) | 1985-01-31 | 1985-01-31 | Piston made of metal plate for transmission |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61175328A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0637653U (en) * | 1992-10-20 | 1994-05-20 | 本田技研工業株式会社 | Seal structure of pressure receiving member |
EP1306584A3 (en) * | 2001-10-23 | 2004-07-28 | Carl Freudenberg KG | Complete piston |
JP2009097609A (en) * | 2007-10-16 | 2009-05-07 | Nok Corp | Piston for multistage transmission |
WO2010088986A1 (en) * | 2009-02-07 | 2010-08-12 | Schaeffler Technologies Gmbh & Co. Kg | Pressure piston assembly comprising a loose sealing ring |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002372073A (en) * | 2001-06-13 | 2002-12-26 | Nok Corp | Sealing device |
JP2003042185A (en) * | 2001-08-01 | 2003-02-13 | Nok Corp | Tight seal |
-
1985
- 1985-01-31 JP JP60018145A patent/JPS61175328A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0637653U (en) * | 1992-10-20 | 1994-05-20 | 本田技研工業株式会社 | Seal structure of pressure receiving member |
EP1306584A3 (en) * | 2001-10-23 | 2004-07-28 | Carl Freudenberg KG | Complete piston |
JP2009097609A (en) * | 2007-10-16 | 2009-05-07 | Nok Corp | Piston for multistage transmission |
WO2010088986A1 (en) * | 2009-02-07 | 2010-08-12 | Schaeffler Technologies Gmbh & Co. Kg | Pressure piston assembly comprising a loose sealing ring |
Also Published As
Publication number | Publication date |
---|---|
JPH0118302B2 (en) | 1989-04-05 |
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