JPH02589B2 - - Google Patents
Info
- Publication number
- JPH02589B2 JPH02589B2 JP57135243A JP13524382A JPH02589B2 JP H02589 B2 JPH02589 B2 JP H02589B2 JP 57135243 A JP57135243 A JP 57135243A JP 13524382 A JP13524382 A JP 13524382A JP H02589 B2 JPH02589 B2 JP H02589B2
- Authority
- JP
- Japan
- Prior art keywords
- packing
- pressure
- sliding surface
- annular
- fluid
- 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.)
- Expired - Lifetime
Links
- 238000012856 packing Methods 0.000 claims description 35
- 239000012530 fluid Substances 0.000 claims description 23
- 230000013011 mating Effects 0.000 claims description 16
- 239000002131 composite material Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
- F16J15/3216—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip supported in a direction parallel to the surfaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Description
【発明の詳細な説明】
本発明は相対的に往復運動をする部材間で圧力
流体の漏れを防止するパツキンに係り、特に高圧
の流体の漏れを長期間にわたり確実に防止できる
複合パツキンに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a packing that prevents leakage of pressure fluid between members that relatively reciprocate, and more particularly to a composite packing that can reliably prevent leakage of high-pressure fluid for a long period of time.
相対的に往復運動をする部材間で、高圧流体の
漏れを防止するための従来のパツキンの１例は第
１図および第２図において、主パツキン１の摺動
側の基部２に環状の切欠き３を設け、その中に相
手摺動面４に対し、しめしろを保持して前記相手
摺動面４を平行な面９を有する環状の副パツキン
１０を備えてなるものであつた。したがつて、高
圧側から流体圧力が作用したとき、主パツキンの
基部２は副パツキン１０によりはみ出しを防止さ
れる。また、前記相手摺動面４が高圧側から低圧
側に向つて摺動したとき、主パツキン１の摺動側
のリツプ１１の接面圧力P1の最大値が大きく、
しかも、高圧流体側の傾斜角よりも、低圧側の傾
斜角が小さいから摺動による高圧流体の漏れは主
パツキン１により防止される。しかし、副パツキ
ン１０の接面圧力P2は最大値が小さく、しかも、
高圧流体側と低圧側の角度がほぼ直角であるから
相手摺動面４に付着して出て来た流体膜のシール
は不十分であつた。 An example of a conventional packing for preventing leakage of high-pressure fluid between members that relatively reciprocate is shown in FIGS. A notch 3 was provided therein, and an annular sub-packing 10 was provided in the notch 3, which held an interference with the mating sliding surface 4 and had a surface 9 parallel to the mating sliding surface 4. Therefore, when fluid pressure is applied from the high pressure side, the base 2 of the main packing is prevented from protruding by the sub packing 10. Furthermore, when the mating sliding surface 4 slides from the high pressure side toward the low pressure side, the maximum value of the contact surface pressure P 1 of the lip 11 on the sliding side of the main packing 1 is large;
Moreover, since the angle of inclination on the low pressure side is smaller than the angle of inclination on the high pressure fluid side, leakage of high pressure fluid due to sliding is prevented by the main packing 1. However, the maximum value of the contact pressure P2 of the secondary packing 10 is small, and moreover,
Since the angles between the high-pressure fluid side and the low-pressure side were approximately right angles, the sealing of the fluid film that adhered to the mating sliding surface 4 and came out was insufficient.
また、従来のパツキンの他の例は第３図におい
て、パツキン本体１３の摺動側の基部１３に第２
のリツプ１４を備えてなるものであつた。 In addition, another example of the conventional packing is shown in FIG.
It was equipped with a lip 14.
したがつて、高圧流体の漏れを防止する効果は
あるが、パツキン１２の基部１３のはみ出しは防
止されないからパツキンの寿命はかなり短にもの
であつた。 Therefore, although there is an effect of preventing leakage of high-pressure fluid, the life of the gasket is rather short because the protrusion of the base 13 of the gasket 12 is not prevented.
本発明の目的は、前記の従来のものにおける欠
点を除去し、長期間にわたつて摺動による流体の
漏れを防止するパツキンを提供することである。 An object of the present invention is to provide a packing that eliminates the drawbacks of the conventional packing and prevents fluid leakage due to sliding over a long period of time.
前記目的は、環状の主パツキンの基部の摺動側
に環状の切欠き部を設け、前記切欠き部の中に、
相手摺動面に対し、しめしろを保持して突出する
環状の突出先端を有し、前記突出先端から低圧側
に向う斜面の前記相手摺動面との角度を前記突出
先端から高圧作動流体側に向う斜面の前記相手摺
動面との角度よりも小さく形成し、かつ、前記主
パツキンよりも硬さの硬い材料の環状の副パツキ
ンを備えて、高圧流体の漏れおよびパツキンのは
み出しを防止することにより達成される。 The purpose is to provide an annular notch on the sliding side of the base of the annular main packing, and in the notch,
It has an annular protruding tip that protrudes with an interference with respect to the mating sliding surface, and the angle between the mating sliding surface and the slope facing from the protruding tip toward the low pressure side is set from the protruding tip to the high pressure working fluid side. An annular sub-packet formed of a slope smaller than the angle with the mating sliding surface and made of a harder material than the main packing is provided to prevent leakage of high-pressure fluid and protrusion of the packing. This is achieved by
本発明を図面に示す実施例により説明する。 The present invention will be explained with reference to embodiments shown in the drawings.
本発明の複合パツキンの主パツキン１として、
Ｕパツキンを用いた場合の一例は第４図および第
５図において、前記主パツキン１の基部２から高
圧流体側方向に伸びる固定リツプ１５と摺動側の
リツプ１８を有し、前記基部２の摺動側には環状
の切欠き部３が設けられている。そして、両側が
斜面６および７に形成され、相手摺動面４に対
し、しめしろを保持して突出する環状の突出先端
５を有し、前記突出先端５から低圧側に向う前記
斜面６の前記相手摺動面４との角度θ1を、前記突
出先端５から高圧作動流体側に向う前記斜面７の
前記相手摺動面４との角度θ2よりも小さく形成す
るとともに、前記主パツキン１よりも硬さの高い
材料の環状の副パツキン８を前記切欠き部３の中
に備えてなるものである。 As the main packing 1 of the composite packing of the present invention,
An example of the case where a U packing is used is shown in FIGS. 4 and 5, which has a fixed lip 15 extending from the base 2 of the main packing 1 toward the high-pressure fluid side and a lip 18 on the sliding side. An annular notch 3 is provided on the sliding side. Both sides are formed with slopes 6 and 7, and has an annular projecting tip 5 that protrudes with an interference with respect to the mating sliding surface 4, and the slope 6 faces from the projecting tip 5 toward the low pressure side. The angle θ 1 with the mating sliding surface 4 is formed to be smaller than the angle θ 2 of the slope 7 with the mating sliding surface 4 from the protruding tip 5 toward the high-pressure working fluid side, and the main packing 1 The notch portion 3 is provided with an annular sub-packet 8 made of a material harder than the above-mentioned one.
したがつて、第５図において、前記主パツキン
１の高圧側から流体圧力が作用したとき、主パツ
キン１の基部２は装着溝１６の低圧側の側面１７
に押しつけられるが、前記主パツキンの基部２の
摺動側には前記主パツキン１より硬い材料の副パ
ツキン８を備えているので流体圧力による隙間へ
のはみ出しは起らない。また、前記相手摺動面４
が高圧側から低圧側へ向つて摺動したとき、主パ
ツキン１の摺動側のリツプ１８の接面圧力P1の
最大値が大きく、しかも、高圧流体側の傾斜角よ
りも低圧側の傾斜角が小さいから摺動による高圧
流体の漏れは主パツキン１により防止される。更
に、副パツキン８の接面圧力P3は最大値が大き
く、しかも、高圧流体側の傾斜角より低圧側の傾
斜角が小さいから相手摺動面４に付着した流体の
膜は完全にシールされるから流体は低圧側に漏れ
ることはない。 Therefore, in FIG. 5, when fluid pressure is applied from the high-pressure side of the main packing 1, the base 2 of the main packing 1 touches the low-pressure side surface 17 of the mounting groove 16.
However, since the sliding side of the base 2 of the main packing is provided with the sub packing 8 made of a harder material than the main packing 1, no protrusion into the gap due to fluid pressure occurs. In addition, the mating sliding surface 4
When sliding from the high-pressure side toward the low-pressure side, the maximum value of the contact surface pressure P1 of the lip 18 on the sliding side of the main packing 1 is larger, and the slope on the low-pressure side is greater than the slope on the high-pressure fluid side. Since the corners are small, leakage of high pressure fluid due to sliding is prevented by the main packing 1. Furthermore, the contact pressure P 3 of the secondary packing 8 has a large maximum value, and the inclination angle on the low-pressure side is smaller than the inclination angle on the high-pressure fluid side, so the film of fluid adhering to the mating sliding surface 4 is completely sealed. Therefore, fluid will not leak to the low pressure side.
したがつて、本発明の複合パツキンによれば、
摺動による流体の漏れが長期間にわたつて防止さ
れる効果がある。 Therefore, according to the composite packing of the present invention,
This has the effect of preventing fluid leakage due to sliding over a long period of time.
第１図は従来のパツキンの一例を示す断面部分
図、第２図は第１図の従来のパツキンの装着状態
の断面部分図、第３図は従来のパツキンの他の例
を示す断面部分図、第４図は本発明の複合パツキ
ンの一実施例を示す断面部分図、第５図は第４図
の本発明の複合パツキンの装着状態の断面部分
図、第６図は第４図の平面図である。
１……主パツキン、３……環状の切欠き、４…
…相手摺動面、５……環状の突出先端、８……副
パツキン。
Fig. 1 is a partial cross-sectional view showing an example of a conventional gasket, Fig. 2 is a partial cross-sectional view of the conventional gasket shown in Fig. 1 in an attached state, and Fig. 3 is a partial cross-sectional view showing another example of the conventional gasket. , FIG. 4 is a partial cross-sectional view showing one embodiment of the composite packing of the present invention, FIG. 5 is a partial cross-sectional view of the composite packing of the present invention shown in FIG. 4 in an installed state, and FIG. 6 is a plan view of FIG. 4. It is a diagram. 1... Main gasket, 3... Annular notch, 4...
...Mating sliding surface, 5...Annular protruding tip, 8...Secondary packing.
Claims (1)
の切欠き部３を設け、前記切欠き部３の中に、相
手摺動面４に対し、しめしろを保持して突出する
環状の突出先端５を有し、前記突出先端５から低
圧側に向う斜面６の前記相手摺動面４との角度θ1
を、前記突出先端５から高圧作動流体側に向う斜
面７の前記相手摺動面４との角度θ2よりも小さく
形成し、かつ、前記主パツキン１よりも硬い材料
の環状の副パツキン８を備えてなることを特徴と
する複合パツキン。1 An annular notch 3 is provided on the sliding side of the base 2 of the annular main packing 1, and an annular notch 3 is provided in the notch 3 and protrudes while maintaining an interference with the mating sliding surface 4. An angle θ 1 between a slope 6 having a protruding tip 5 and facing the low pressure side from the protruding tip 5 with the mating sliding surface 4
is formed to be smaller than the angle θ 2 between the slope 7 and the mating sliding surface 4 from the protruding tip 5 toward the high - pressure working fluid side, and an annular secondary packing 8 made of a harder material than the main packing 1. A composite patch skin characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57135243A JPS5926669A (en) | 1982-08-04 | 1982-08-04 | Composite packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57135243A JPS5926669A (en) | 1982-08-04 | 1982-08-04 | Composite packing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5926669A JPS5926669A (en) | 1984-02-10 |
| JPH02589B2 true JPH02589B2 (en) | 1990-01-08 |
Family
ID=15147152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57135243A Granted JPS5926669A (en) | 1982-08-04 | 1982-08-04 | Composite packing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5926669A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0643578Y2 (en) * | 1986-12-29 | 1994-11-14 | 三菱電線工業株式会社 | Seal ring |
| JPH054620Y2 (en) * | 1986-12-29 | 1993-02-04 | ||
| JPH0248674U (en) * | 1988-09-30 | 1990-04-04 | ||
| DE10028672A1 (en) * | 2000-06-09 | 2001-12-13 | Fte Automotive Gmbh | Sealing element for hydraulic piston-cylinder arrangements |
| JP2005147317A (en) * | 2003-11-18 | 2005-06-09 | Nok Corp | Sealing device and fuel injection pump |
| US20060006608A1 (en) * | 2004-06-28 | 2006-01-12 | Laplante Robert P | Sector shaft pressure seal |
-
1982
- 1982-08-04 JP JP57135243A patent/JPS5926669A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5926669A (en) | 1984-02-10 |
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