WO2006098184A1 - 密封装置 - Google Patents
密封装置 Download PDFInfo
- Publication number
- WO2006098184A1 WO2006098184A1 PCT/JP2006/304305 JP2006304305W WO2006098184A1 WO 2006098184 A1 WO2006098184 A1 WO 2006098184A1 JP 2006304305 W JP2006304305 W JP 2006304305W WO 2006098184 A1 WO2006098184 A1 WO 2006098184A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston member
- sealing device
- cylindrical portion
- seal
- core metal
- Prior art date
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
-
- 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
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2300/00—Special features for couplings or clutches
- F16D2300/08—Details or arrangements of sealings not provided for in group F16D3/84
Definitions
- the present invention relates to a sealing device in which sealing performance is secured by a seal member provided on a piston member that reciprocates in a cylinder by hydraulic control.
- Patent Document 1 proposes that only the piston member force seal portion is separated, and a seal member obtained by vulcanizing and bonding a seal sealing portion to a metal core is fitted to the piston member. Yes.
- the core metal 104 to which the seal sealing portion 103 is bonded is fitted to the piston member 102, as shown in FIG.
- the thickness t of the cored bar 104 is the same and thick in the flange part 104a and the cylindrical part 104b.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2003-139249
- the present invention can suppress the fitting and mounting force even when the sealing member is attached to the piston member by fitting, and the core metal of the sealing member can be deformed.
- An object is to provide a bag sealing device.
- a sealing device includes a core member and a seal sealing portion provided on a piston member that reciprocates in the axial direction in a bottomed cylindrical cylinder. Fit the piston member into the sealing device where the member fits! / Panel characteristics by thinning are given to the cylindrical part of the core metal.
- the sealing device according to claim 2 of the present invention is the sealing device according to claim 1, wherein the cylindrical portion of the cored bar is provided with slits arranged on the circumference equally, or The cylindrical portion of the core metal is formed by a claw.
- the sealing device according to claim 3 of the present invention is the sealing device according to claim 1 or 2, wherein a convex portion is provided on the cylindrical portion of the core metal, A concave portion with which the convex portion engages is provided in the piston member.
- the present invention has the following effects.
- the sealing device according to claim 1 of the present invention having the above-described configuration, since the panel characteristic due to the thinning is given to the cylindrical portion of the core metal, in order to attach the seal member to the piston member It is possible to reduce the fitting / mounting force (built-in load) when fitting the metal core, and to prevent the metal core from being deformed.
- the force provided with the slits arranged on the circumference of the cylindrical portion of the core metal, or the cylindrical portion is formed by the claw, Since the seal member is attached to the piston member, it is possible to further reduce the fitting / mounting force when fitting the cored bar.
- FIG. 1 is a cross-sectional view of an essential part of a sealing device according to the present invention.
- FIG. 2 is a front view of Embodiment 1 of the seal member in FIG.
- FIG. 3 is a front view of Embodiment 2 of the seal member in FIG.
- FIG. 4 is a front view of Embodiment 3 of the sealing member in FIG.
- FIG. 5 is a cross-sectional view of a main part showing a fitting state according to Embodiment 2 different from FIG.
- FIG. 6 is a cross-sectional view of main parts of a recess according to Embodiment 3 different from FIG.
- FIG. 7 is a cross-sectional view of the relevant part showing a fitting state according to Embodiment 4 different from FIG.
- FIG. 8 is a cross-sectional view of the relevant part showing a fitting state according to Embodiment 5 different from FIG.
- FIG. 9 is a cross-sectional view of the main part of a sealing device according to a conventional example.
- FIG. 1 is a cross-sectional view of a main part of a sealing device according to an embodiment of the present invention mounted on a piston member that reciprocates in a cylinder in an axial direction.
- a sealing device 1 is attached to a piston member 3 that reciprocates in the axial direction in a cylinder 2 having a bottomed cylindrical shape, and between the cylinder 2 and the piston member 3.
- the seal is composed of a seal member 6 having a core metal 4 and a seal sealing portion 5.
- the core metal 4 includes a flange portion 41 positioned on the outer side in the axial direction (upper side in the figure) of the flange portion 31 positioned on the innermost diameter side of the stepped piston member 3, and an outer diameter side of the flange portion 41 Extending from the end in the axial direction (up and down in the figure), the stepped piston member 3 is positioned between the cylindrical portion 42 that fits with the cylindrical portion 32 that is positioned on the innermost side, and between the flange portion 41 and the cylindrical portion 42. It is a metal plate having a corner portion 43 and a substantially L-shaped cross section formed of a body.
- the thickness of the core 4 is such that the thickness t of the cylindrical portion 42 is thinner than the thickness t of the flange portion 41 and the corner portion 43.
- V it is preferable to use V, so that the cylindrical member 42 is fitted with the piston member 3 to provide spring properties.
- slits 44 that are equally distributed on the circumference are formed in the cylindrical portion 42 of the core metal 4 in order to impart panel elasticity.
- the cylindrical portion 42 may be formed by claws 45 to give panel elasticity.
- panel elasticity is provided by opening a hole 40 such as a circle or an ellipse in the cylindrical portion 42, the cost of press molding can be reduced.
- the shape of the hole is not limited to a circle or an ellipse, but may be a triangle or a quadrangle.
- the axial end of the cylindrical portion 42 of the core metal 4 is used.
- a convex portion 46 is formed in the vicinity of the portion, and a concave portion 33 that engages with the convex portion 46 is formed on the outer diameter surface of the cylindrical portion 32 of the piston member 3 over the entire circumference.
- the shape of the concave portion 33 is related to the convex portion 46.
- a rectangular shape as shown in Fig. 6 is usually used in addition to the wedge shape, which can be any shape.
- the height h of the convex portion 46 and the depth h of the concave portion 33 with which the convex portion 46 engages are determined in consideration of the fitting mounting force and strength of the core metal 4, but the height h of the convex portion 46 is determined.
- the fitting portion 47 where the outer diameter surface of the cylindrical portion 32 of the piston member 3 is fitted to the inner diameter surface of the cylindrical portion 42 of the core metal 4 is as shown in FIGS.
- the entire inner diameter surface of the cylindrical portion 42 may be used, or as shown in FIG. 7, only the portion 47A in the vicinity where the convex portion 46 on the inner side in the axial direction is formed may be used for the purpose of reducing the assembly load.
- the portion 47B in the vicinity of the axially outer corner 43 may be fitted to the axially inner portion 47A for the purpose of improving the shaft eccentricity accuracy.
- the seal member 6 is attached by fitting to the piston member 3 that reciprocates in the cylinder 2 in the axial direction.
- the seal member 6 is thinly attached to the cylindrical portion 42 of the metal core 4 to be fitted to the piston member 3.
- the panel mounting characteristic is imparted, so that it is possible to reduce the fitting and mounting force (built-in load) when fitting the seal member 6 to the piston member 3.
- the convex portion 46 is provided in the cylindrical portion 42, and the concave portion 33 in which the convex portion 46 engages is provided in the piston member 3, there is a possibility that it may be caused by a reduction in fitting mounting force.
- the seal member 6 can be reliably prevented from coming off from the piston member 3, and the separation load can be dramatically improved.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Sealing Devices (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06728674A EP1860355A1 (en) | 2005-03-16 | 2006-03-07 | Sealing device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-074853 | 2005-03-16 | ||
JP2005074853A JP2006258163A (ja) | 2005-03-16 | 2005-03-16 | 密封装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006098184A1 true WO2006098184A1 (ja) | 2006-09-21 |
Family
ID=36991532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/304305 WO2006098184A1 (ja) | 2005-03-16 | 2006-03-07 | 密封装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080143053A1 (ja) |
EP (1) | EP1860355A1 (ja) |
JP (1) | JP2006258163A (ja) |
KR (1) | KR20070118070A (ja) |
CN (1) | CN101111701A (ja) |
WO (1) | WO2006098184A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008261425A (ja) * | 2007-04-12 | 2008-10-30 | Nok Corp | 油圧クラッチ用ピストン |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4911314B2 (ja) * | 2007-08-03 | 2012-04-04 | Nok株式会社 | 自動変速機用ピストン |
JP4972515B2 (ja) * | 2007-10-12 | 2012-07-11 | 光洋シーリングテクノ株式会社 | 流体式変速機のクラッチピストン |
DE102009025721A1 (de) * | 2009-02-07 | 2010-08-19 | Schaeffler Technologies Gmbh & Co. Kg | Druckkolbenanordnung mit losem Dichtring |
JP5316776B2 (ja) * | 2009-02-25 | 2013-10-16 | Nok株式会社 | 自動変速機用ピストン |
JP6313593B2 (ja) * | 2013-12-26 | 2018-04-18 | 株式会社荒井製作所 | クラッチシリンダ用シールリングおよび自動変速機用油圧クラッチ |
WO2018193766A1 (ja) * | 2017-04-19 | 2018-10-25 | Nok株式会社 | 正負圧用ガスケット |
US11639754B2 (en) | 2019-10-03 | 2023-05-02 | Nok Corporation | Positive/negative pressure gasket |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5442033U (ja) * | 1977-08-30 | 1979-03-20 | ||
JPH0942460A (ja) * | 1995-07-31 | 1997-02-14 | Nok Corp | 密封装置 |
JPH09287665A (ja) * | 1996-04-22 | 1997-11-04 | Nok Corp | ダストシール及び二輪車用フロントフォークの密封構造 |
JP2003139249A (ja) * | 2001-11-01 | 2003-05-14 | Koyo Sealing Techno Co Ltd | 流体式変速機のクラッチピストン |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2926035A (en) * | 1958-12-22 | 1960-02-23 | Federal Mogul Bower Bearings | Pressure shaft seal |
JPS55142392A (en) * | 1979-04-23 | 1980-11-06 | Nippon Musical Instruments Mfg | Automatic rhythm player |
JP3177086B2 (ja) * | 1994-02-07 | 2001-06-18 | エヌオーケー株式会社 | 密封装置 |
DE19509771C1 (de) * | 1995-03-17 | 1996-09-05 | Freudenberg Carl Fa | Dichtring |
JP2005172094A (ja) * | 2003-12-10 | 2005-06-30 | Nok Corp | 密封装置 |
-
2005
- 2005-03-16 JP JP2005074853A patent/JP2006258163A/ja active Pending
-
2006
- 2006-03-07 KR KR1020077017046A patent/KR20070118070A/ko not_active Application Discontinuation
- 2006-03-07 WO PCT/JP2006/304305 patent/WO2006098184A1/ja active Application Filing
- 2006-03-07 CN CNA2006800035447A patent/CN101111701A/zh active Pending
- 2006-03-07 US US11/883,299 patent/US20080143053A1/en not_active Abandoned
- 2006-03-07 EP EP06728674A patent/EP1860355A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5442033U (ja) * | 1977-08-30 | 1979-03-20 | ||
JPH0942460A (ja) * | 1995-07-31 | 1997-02-14 | Nok Corp | 密封装置 |
JPH09287665A (ja) * | 1996-04-22 | 1997-11-04 | Nok Corp | ダストシール及び二輪車用フロントフォークの密封構造 |
JP2003139249A (ja) * | 2001-11-01 | 2003-05-14 | Koyo Sealing Techno Co Ltd | 流体式変速機のクラッチピストン |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008261425A (ja) * | 2007-04-12 | 2008-10-30 | Nok Corp | 油圧クラッチ用ピストン |
Also Published As
Publication number | Publication date |
---|---|
EP1860355A1 (en) | 2007-11-28 |
JP2006258163A (ja) | 2006-09-28 |
CN101111701A (zh) | 2008-01-23 |
KR20070118070A (ko) | 2007-12-13 |
US20080143053A1 (en) | 2008-06-19 |
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