WO2005088173A1 - 密封装置 - Google Patents
密封装置 Download PDFInfo
- Publication number
- WO2005088173A1 WO2005088173A1 PCT/JP2005/004323 JP2005004323W WO2005088173A1 WO 2005088173 A1 WO2005088173 A1 WO 2005088173A1 JP 2005004323 W JP2005004323 W JP 2005004323W WO 2005088173 A1 WO2005088173 A1 WO 2005088173A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- seal
- piston
- annular
- axial
- contact
- Prior art date
Links
Classifications
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
-
- 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
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
- F16D25/062—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces
- F16D25/063—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially
- F16D25/0635—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs
- F16D25/0638—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
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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
- 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
- F16J15/3268—Mounting of sealing rings
- F16J15/3276—Mounting of sealing rings with additional static sealing between the sealing, or its casing or support, and the surface on which it is mounted
-
- 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 applied to a hydraulic piston of an automatic transmission for an automobile, for example.
- FIG. 7 is a schematic configuration half cross-sectional view illustrating a schematic configuration of a transmission changeover unit of the AT.
- annular piston insertion hole 102 is formed between the inner peripheral surface of housing 100 in which shaft 101 is inserted and the outer peripheral surface of shaft 101.
- a multi-plate clutch 103 is provided inside the housing 100, and an annular piston member (annular member) 104 is disposed in the piston insertion hole 102 so as to be movable in the axial direction.
- An annular cancel plate 105 that restricts axial movement is attached to the outer periphery of the shaft 101.
- the movement of the cancel plate is restricted by a stopper 106 provided on the shaft 101.
- An O-ring 111 is provided in an annular groove provided on the outer peripheral surface of the shaft 101 to seal an annular gap between the inner peripheral surface of the piston member 104 and the outer peripheral surface of the shaft 101.
- a single lip 112 is provided on the outer peripheral surface of the inner peripheral surface of the housing 100 in sealing contact with the inner peripheral surface.
- the piston member 104 moves in the axial direction by receiving the hydraulic pressure
- bonded piston seal sealing device
- the die for integrally molding the seal lip with the base material becomes large, which leads to an increase in the manufacturing cost of the die.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2003-139249
- the present invention has been made to solve the above-mentioned problems of the related art, and more particularly, relates to a sealing device in which a seal member is fitted and mounted on an annular member.
- An object of the present invention is to provide a technique for reducing a fitting force.
- An annular portion movably provided in the axial direction in the annular hole and having a radial portion, and an axial portion extending in the axial direction at least one of an inner diameter end and an outer diameter end of the radial portion;
- a seal member provided to be fitted to the axial portion of the annular member and sealing an annular gap between the annular member and a peripheral surface of the annular hole;
- a sealing device for sealing the one side and the other side in the axial direction of the annular member.
- a contact portion that is provided integrally with the reinforcing ring and that contacts the axial portion when fitted to the axial portion of the annular member and a seal lip that sealingly contacts the peripheral surface of the annular hole.
- the fitting force between the seal member and the annular member can be reduced as compared with the case where the reinforcing ring is fitted in contact with the piston member. Further, the variation in the fitting force can be suppressed as compared with the case where the reinforcing ring is fitted in contact with the piston member. That is, when the seal member is fitted to the annular member, the seal member is not deformed. In addition, there is no need to severely restrict the tolerance of the dimensional diameter of the reinforcing ring. There is no increase in manufacturing cost due to improved accuracy.
- the seal body is made of a rubber-like elastic body, it is necessary to increase the compression ratio of the rubber-like elastic body in order to secure a fitting force between the seal member and the annular member.
- the contact portion may further include a groove extending in the axial direction at a portion in contact with the axial portion.
- the seal body further includes a seal lip that sealingly contacts the corner between the axial portion and the radial portion, the axial portion, or the radial portion. Good.
- a groove extending in the axial direction is provided in the contact portion. In such a case, even if the seal lip is provided, the sealing performance between the seal member and the annular member can be further improved.
- the axial portion may further include a circumferentially extending groove at a portion where the contact portion contacts.
- a radial portion, and an axial portion extending in the axial direction at least one of an inner end and an outer end of the radial portion are provided in the annular hole so as to be movable in the axial direction.
- An annular member having: A seal member provided to be fitted to the axial portion of the annular member and sealing an annular gap between the annular member and a peripheral surface of the annular hole;
- a sealing device for sealing the one side and the other side in the axial direction of the annular member.
- the seal member has the protruding portion and is fitted to the annular member by the protruding portion, even when the seal member is fitted to the annular member and the rubber-like elastic body is compressed, deformation (displacement). ) Possible space (space) (there is a space where the rubber-like elastic body is compressed and deformed and escapes), and it is possible to suppress the occurrence of “barring” of the rubber-like elastic body at the time of fitting. Become
- the protruding portion is provided so as to seal the annular gap between the annular member and the axial direction portion, it is possible to suppress leakage of the fluid to be sealed from the annular gap.
- the protruding portion is provided on the entire periphery of the seal member.
- the protruding portion is provided so as to seal an annular gap with the axial portion of the annular member in a state fitted to the annular member, but is not limited to this.
- FIG. 1 is a schematic half sectional view for illustrating a schematic configuration of a speed changeover unit to which a sealing device according to Embodiment 1 of the present invention is applied.
- FIG. 2 is a schematic half sectional view showing the configuration of a sealing member constituting the sealing device according to the first embodiment of the present invention.
- FIG. 3 is a schematic half sectional view showing a piston member constituting the sealing device according to the first embodiment of the present invention.
- FIG. 4 is a schematic cross-sectional view showing a main part of a piston member included in the sealing device according to Embodiment 1 of the present invention.
- FIG. 5 is a schematic half sectional view showing the structure of a sealing member constituting a sealing device according to Embodiment 2 of the present invention.
- FIG. 6 is a schematic cross-sectional view showing a modified example of the seal member included in the sealing device according to Embodiment 2 of the present invention.
- FIG. 7 is a schematic configuration diagram of a speed changeover unit to which a sealing device according to a conventional technique is applied. Explanation of symbols
- FIG. 1 is a schematic half sectional view for explaining a schematic configuration of a speed changeover unit to which a bonded piston seal 1 as a sealing device according to Embodiment 1 of the present invention is applied.
- FIG. 2 is a schematic half sectional view showing a seal member 7 constituting a bonded piston seal 1 as a sealing device according to Embodiment 1 of the present invention.
- FIG. 3 is a schematic half sectional view showing a piston member 11 constituting a bonded piston seal 1 as a sealing device according to the first embodiment of the present invention.
- FIG. 4 is a schematic sectional view showing a main part of the piston member 11 shown in FIG.
- the bonded piston seal 1 is used, for example, to turn ON or OFF the engagement of a clutch plate of an automatic transmission for an automobile such as an AT.
- the speed changeover portion is provided with a shaft 2 and a housing 3 provided on the outer peripheral side of the shaft 2 and having a substantially L-shaped cross section.
- the housing 3 has a radial portion 31 and first, second, and third circular portions 32, 33, and.
- a multiple disc clutch 4 is housed on the inner peripheral side of the third circular portion 34 having an inner diameter larger than the first and second circular portions 32 and 33.
- the sealing device according to the present embodiment may be used as a brake plate for a brake ON / OFF device.
- annular piston insertion hole (annular hole) 5 is formed between the inner peripheral surface of the first, second, and third circular portions 32, 33, and 34 and the outer peripheral surface of the shaft 2.
- the piston member 11 as an annular member is inserted movably in the axial direction into the piston insertion hole 5.
- the piston member 11 is a metal ring made of a thin steel plate (for example, SPCC), and has a pusher-shaped end wall 12 facing the end surface of the radial portion 31 of the housing 3 and an outer end force of the end wall 12 in the axial direction.
- An outer peripheral skirt portion 13 extending toward the multiple disc clutch 4 side; an inclined portion 14 extending from the inner end of the end wall 12 in the radial direction and inclined toward the axial multiple disc clutch 4 side;
- a radial portion 15 extending in the inner diameter direction from the inner diameter end, and a multi-plate clad in the axial direction from the inner diameter end of the radial portion 15.
- An inner peripheral skirt portion 16 and a force extending toward the side 4 are also formed.
- the outer peripheral skirt portion 13 extends from the outer diameter end of the end wall 12 to the axial multiple disk clutch 4 side, and the force of the first external skirt portion 13a on the multiple disk clutch 4 side is also increased. It has a second outer peripheral skirt portion 13b extending in the outer radial direction, and a third outer peripheral skirt portion 13c extending from the outer diameter end of the second outer peripheral skirt portion 13b to the axial multiple disc clutch 4 side.
- the outer peripheral skirt portion 13, particularly the first outer peripheral skirt portion 13a constitutes the axial portion according to the present invention, and the end wall 12, the inclined portion 14, and the radial portion 15 constitute the radial portion according to the present invention. are doing.
- the bistone member 11 is formed by die molding (for example, press molding).
- annular groove 21 provided on the inner peripheral side of the inner peripheral skirt portion 16 and on the outer peripheral surface of the shaft 2 is slidably in close contact with the inner peripheral surface of the inner peripheral skirt portion 16. Ring 6 is housed
- a seal member 7 having a seal lip 71 that sealingly contacts the inner peripheral surface of the first circular portion 32 is fitted on the outer diameter side of the first outer peripheral skirt portion 13a.
- a pressure chamber X (line hydraulic chamber) is formed between the piston member 11 and the housing 3 via the seal lip 71 and the O-ring 6! /
- cancel plate 8 is provided on the outer peripheral side of the shaft 2 opposite to the piston member 11, as an annular restricting member that restricts axial movement.
- the cancel plate 8 is a metal ring made of a thin steel plate (for example, SPCC) and has an inner diameter that is detachable from the shaft 2, and is moved in the axial direction by the stopper 9, specifically, in a direction away from the piston member 11. Is regulated.
- the outer diameter of the cancel plate 8 is smaller than the inner diameter of the outer peripheral skirt 13 of the piston member 11.
- the cancel plate 8 is a metal ring extending from the shaft 2 to the outer peripheral skirt portion 13 of the piston member 11 in the radial direction, and the outer peripheral end of the third outer skirt portion 13c of the piston member 11 A seal lip 81 slidably and sealingly contacting the inner peripheral surface is provided.
- an oil chamber Y (cancelled hydraulic chamber) is formed between the cancel plate 8 and the piston member 11 and is separated from the oil chamber Z on the multi-plate clutch 4 side.
- the shaft 2 is provided with a passage 22 communicating with the pressure chamber X and a passage 23 communicating with the oil chamber Y. ing.
- a plurality of springs 10 are provided in the circumferential direction as urging means for urging the piston member 11 in a direction away from the cancel plate 8. .
- the piston member 11 is fitted and mounted on the outer diameter side of the first outer peripheral skirt portion 13a.
- the contact portion 72 formed of a rubber-like elastic body contacts the outer diameter side of the first outer peripheral skirt portion 13a.
- the seal member 7 includes a seal body 7a made of a rubber-like elastic body, and a reinforcing ring 7b for reinforcing the seal body 7a.
- the seal body 7a is formed integrally with the reinforcing ring 7b over substantially the entire circumference of the reinforcing ring 7b, and is provided with the Sheno lips 71 and 74 and the contact portion 72.
- the seal lip 71 is provided so as to extend from the end wall 12 side of the reinforcing ring 7b to the outer diameter side and the end wall 12 side, and the lip tip is formed on the inner peripheral surface of the first circular portion 32 of the housing 3. Slidably close to Sealed contact.
- the contact portion 72 is a portion of the seal member 7 that contacts the outer diameter side of the first outer peripheral skirt portion 13a of the piston member 11 when the seal member 7 is fitted to the piston member 11. That is, in the seal member 7, only the contact portion 72 is in contact with the piston member 11 in order to fit the piston member 11.
- the portion that comes into contact with the piston member 11 at the time of fitting is made of a rubber-like elastic body, so that the reinforcing ring 7 b is brought into direct contact with and fitted to the piston member 11.
- the fitting force between the seal member 7 and the piston member 11 can be reduced as compared with the case where the seal member 7 is fitted.
- the plate thickness may vary.
- the reinforcing ring 7b is fitted in contact with the piston member 11, there is a concern that the dispersion of the fitting force becomes large. Can also be suppressed.
- the seal member 7 does not deform. Also, there is no need to strictly limit the tolerance of the dimensional diameter of the reinforcing ring 7b.
- a vertical groove 73 is provided in the inner periphery of the contact portion 72 in the axial direction.
- the vertical groove 73 By providing the vertical groove 73, when the seal member 7 is fitted to the piston member 11, the rubber-like elastic body constituting the contact portion 72 is compressed and deformed and escapes into the vertical groove 73 (absorption). And the generation of “soreness” of the rubber-like elastic body can be suppressed. As a result, it is possible to suppress the occurrence of contamination that causes a problem in the automatic transmission. Therefore, even when there is a space restriction in the axial direction, the bonded piston seal 1 according to the present embodiment can be suitably applied, and the degree of freedom in design can be increased. It becomes.
- the size and number of the vertical grooves 73 are not particularly limited, and may be appropriately set according to the specification of the bonded piston seal 1. However, it is preferable that the vertical grooves 73 are provided at equal intervals (equal intervals) in the circumferential direction. .
- a seal lip 74 that comes into sealing contact with the piston member 11 is provided.
- the seal lip 74 extends from the end wall 12 side of the reinforcing ring 7b to the inner diameter side, and is provided with a first outer peripheral skirt. It is in sealing contact with a corner 17 which forms between the part 13a and the end wall 12.
- the sealing lip 74 is in contact with the first outer peripheral skirt portion 13a and the end wall 12 as long as the sealing lip 74 can be in sealing contact with the piston member 11 if the force is in sealing contact with the corner portion 17. It may be something. That is, it may be appropriately set according to the axial space.
- a groove (circumferential groove) 13d formed in the circumferential direction is provided in the first outer peripheral skirt portion 13a at a position where the contact portion 72 fits and comes into contact. .
- the circumferential groove 13d has a function of preventing the sealing member 7 from coming off. Therefore, the shape and the depth of the circumferential groove 13d are not particularly limited as long as they function to prevent the sealing member 7 from coming off, but the groove depth of the circumferential groove 13d is 0. It is preferable that the circumferential groove 13d is about 5 mm, and the circumferential groove 13d is preferably provided on the entire outer circumference of the first outer peripheral skirt portion 13a over the entire circumference.
- the shape of the circumferential groove 13d is shown in FIG. 3 as a substantially triangular cross section (a substantially right-angled triangle in which the through side (upper side in the figure) is substantially perpendicular to the cylindrical surface of the first outer peripheral skirt 13a).
- the present invention is not limited to this, and for example, a groove having a substantially trapezoidal (stepped) cross section as shown in FIG. 4 may be used. It is sufficient that the space (groove, hollow) into which a part of the rubber-like elastic body constituting the part 72 enters. Also, the number of grooves may be appropriately set according to the specification of the bonded piston seal 1.
- the seal lip 74 is provided to further improve the sealing performance between the seal member 7 and the biston member 11, and the vertical groove 73 is provided. Also, the leakage of the fluid to be sealed is suppressed.
- FIG. 5 is a schematic configuration half cross-sectional view showing a seal member 70 constituting the bonded piston seal 1 as a sealing device according to the present embodiment.
- the seal member 70 according to the present embodiment forms the bonded piston seal 1 in the same manner as the seal member 7 according to the above-described first embodiment.
- the piston It is to be fitted and mounted on the outer diameter side of the first outer peripheral skirt portion 13a of the member 11.
- the seal member 70 only the seal body 7a made of a rubber-like elastic body contacts the outer diameter side of the first outer peripheral skirt portion 13a.
- the seal member 70 includes a seal body 7a made of a rubber-like elastic body, and a reinforcing ring 7b for reinforcing the seal body 7a.
- the seal body 7a is formed integrally with the reinforcing ring 7b over substantially the entire circumference of the reinforcing ring 7b.
- the seal lip 71 and the inner peripheral surface (inner peripheral end) of the seal body 7a are formed.
- a projection (projection) portion 76 protruding from the base member 75 toward the inner diameter side (inner circumference side).
- the protrusion 76 provided to protrude from the inner peripheral surface 75 of the seal body 7a When fitted to the piston member 11, it is configured to make sealing contact with the outer diameter side of the first outer peripheral skirt portion 13 a of the piston member 11. As described above, in the seal member 70, only the seal body 7a is in contact with the piston member 11 in order to fit with the piston member 11.
- the protruding portion 76 is preferably provided on the entire inner peripheral surface 75 of the seal body 7a, but is not limited thereto. What is necessary is just to be configured to seal the annular gap between the valve member 70 and the piston member 11. Further, the protrusion 76 shown in FIG. 5 is constituted by two protrusions extending in the circumferential direction. The number of force protrusions is not limited to this, and is appropriately determined according to the specification of the bonded piston seal 1. Then.
- the portion that comes into contact with the piston member 11 at the time of fitting is made of a rubber-like elastic body, so that the reinforcing ring 7b comes into direct contact with the piston member 11 and fits.
- the fitting force between the seal member 70 and the piston member 11 can be reduced as compared with the case where it is performed.
- the piston member 11 and the reinforcing ring 7b may be formed by molding (for example, pressing force), so that the plate thickness may vary.
- the reinforcing ring 7b is fitted in contact with the piston member 11, there is a concern that the dispersion of the fitting force becomes large. Can also be suppressed. This prevents the seal member 70 from being deformed when the seal member 70 is fitted to the piston member 11. Also, there is no need to strictly limit the tolerance of the dimensional diameter of the reinforcing ring 7b.
- the protrusion 76 provided on the seal member 70 so as to protrude from the inner peripheral surface 75 is fitted to the piston member 11, so that the seal member 70 is fitted to the piston member 11.
- the projections 76 are combined, there is a space where the rubber-like elastic body is compressed and deforms and escapes (the compressed projections 76 are deformed by escaping to the inner peripheral surface 75 side).
- the bonded piston seal 1 according to the present embodiment can be suitably applied, and the degree of freedom in design can be increased.
- the sealing function between the seal member 70 and the piston member 11 can be exhibited by a simple configuration in which the protrusion 76 is provided on the seal member 70. This makes it unnecessary to manage the corners 17 in the process of manufacturing the piston member 11.
- the circumferential groove 13d of the first outer skirt portion 13a shown in FIG. 3 in the first embodiment does not need to be particularly provided, but the seal member 70 is prevented from coming off.
- a circumferential groove 13d may be provided for positioning the seal member 70.
- the seal member 70 and the piston member may be formed by making the cross-sectional size of the groove smaller than the cross-sectional size of the protrusion 76 or increasing the number of the protrusions 76. The seal function between 11 is not impaired.
- FIG. 6 is a schematic sectional view showing a modified example of the protruding portion.
- the projecting portion 77 includes a radial end face 77a extending in the radial direction from the inner peripheral surface 75, and an outer radial direction from the radial inner end of the radial end face 77a. And a slanted end surface 77b extending to the inner peripheral surface 75 so as to incline to the side.
- the inclined end face 77 b on the downstream side in the assembling direction is inclined with respect to the radial end face 77 a on the upstream side in the assembling direction so as to project.
- the assembling workability when fitting the seal member 70 to the piston member 11 can be improved. Further, after fitting, it is possible to further prevent the seal member 70 from coming off the piston member 11 (the seal member 70 is less likely to come off from the piston member 11).
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Devices (AREA)
- Gasket Seals (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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KR1020067020030A KR100927502B1 (ko) | 2004-03-12 | 2005-03-11 | 밀봉장치 |
US10/592,589 US20080023893A1 (en) | 2004-03-12 | 2005-03-11 | Hermetically Sealing Device |
EP05720594A EP1724501A1 (en) | 2004-03-12 | 2005-03-11 | Hermetically sealing device |
CNB2005800076457A CN100460729C (zh) | 2004-03-12 | 2005-03-11 | 密封装置 |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
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JP2004070870 | 2004-03-12 | ||
JP2004-070870 | 2004-03-12 | ||
JP2004178026 | 2004-06-16 | ||
JP2004-178026 | 2004-06-16 | ||
JP2004379310A JP4843941B2 (ja) | 2004-03-12 | 2004-12-28 | 密封装置 |
JP2004-379310 | 2004-12-28 |
Publications (1)
Publication Number | Publication Date |
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WO2005088173A1 true WO2005088173A1 (ja) | 2005-09-22 |
Family
ID=34975669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/004323 WO2005088173A1 (ja) | 2004-03-12 | 2005-03-11 | 密封装置 |
Country Status (6)
Country | Link |
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US (1) | US20080023893A1 (ja) |
EP (1) | EP1724501A1 (ja) |
JP (1) | JP4843941B2 (ja) |
KR (1) | KR100927502B1 (ja) |
CN (1) | CN100460729C (ja) |
WO (1) | WO2005088173A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2007239826A (ja) * | 2006-03-07 | 2007-09-20 | Dainatsukusu:Kk | 湿式クラッチのキャンセラのシール構造 |
CN102562850A (zh) * | 2010-12-20 | 2012-07-11 | 陕西航天动力高科技股份有限公司 | 一种湿式离合器 |
US9230316B2 (en) * | 2013-12-31 | 2016-01-05 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Defect inspection device for display panel and method for the same |
EP3215766B1 (fr) * | 2014-11-05 | 2019-07-03 | Hutchinson | Joint d'etancheite composite pour raccord rapide de transfert de fluide, et ce raccord |
JP7317512B2 (ja) * | 2019-01-21 | 2023-07-31 | Nok株式会社 | 密封装置 |
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JP4576699B2 (ja) * | 2000-11-02 | 2010-11-10 | Nok株式会社 | 密封装置 |
JP2003120823A (ja) * | 2001-10-19 | 2003-04-23 | Eagle Ind Co Ltd | シール装置 |
JP2004019830A (ja) * | 2002-06-18 | 2004-01-22 | Toyota Motor Corp | 動力伝達断続装置 |
-
2004
- 2004-12-28 JP JP2004379310A patent/JP4843941B2/ja active Active
-
2005
- 2005-03-11 EP EP05720594A patent/EP1724501A1/en not_active Withdrawn
- 2005-03-11 KR KR1020067020030A patent/KR100927502B1/ko active IP Right Grant
- 2005-03-11 US US10/592,589 patent/US20080023893A1/en not_active Abandoned
- 2005-03-11 CN CNB2005800076457A patent/CN100460729C/zh not_active Expired - Fee Related
- 2005-03-11 WO PCT/JP2005/004323 patent/WO2005088173A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5188374A (en) * | 1992-06-01 | 1993-02-23 | General Motors Corporation | One-piece seal for rotating annular interface |
JPH07301273A (ja) * | 1994-04-28 | 1995-11-14 | Kayaba Ind Co Ltd | フリーピストンにおけるシールリング構造 |
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 |
Also Published As
Publication number | Publication date |
---|---|
CN100460729C (zh) | 2009-02-11 |
KR100927502B1 (ko) | 2009-11-17 |
JP4843941B2 (ja) | 2011-12-21 |
KR20060130685A (ko) | 2006-12-19 |
CN1938536A (zh) | 2007-03-28 |
JP2006029576A (ja) | 2006-02-02 |
EP1724501A1 (en) | 2006-11-22 |
US20080023893A1 (en) | 2008-01-31 |
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