JPS6339484Y2 - - Google Patents
Info
- Publication number
- JPS6339484Y2 JPS6339484Y2 JP1983138273U JP13827383U JPS6339484Y2 JP S6339484 Y2 JPS6339484 Y2 JP S6339484Y2 JP 1983138273 U JP1983138273 U JP 1983138273U JP 13827383 U JP13827383 U JP 13827383U JP S6339484 Y2 JPS6339484 Y2 JP S6339484Y2
- Authority
- JP
- Japan
- Prior art keywords
- inner circumferential
- pressure side
- flexible membrane
- housing
- main body
- 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
Links
- 239000012528 membrane Substances 0.000 claims description 24
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 239000002759 woven fabric Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Description
【考案の詳細な説明】
本考案は高圧用緩衝器等に使用され、内部高圧
側から外部低圧側への漏洩を防止する高圧用ダン
パーシールに関するものである。[Detailed Description of the Invention] The present invention relates to a high-pressure damper seal that is used in a high-pressure shock absorber and the like and prevents leakage from an internal high-pressure side to an external low-pressure side.
従来、この種のシールとしては第１図に示すシ
ール２１が知られている。このシール２１は、高
圧側Ａに主リツプ２２が位置するために、圧力に
より主リツプ２２が変形し、密封性能が圧力変化
により変動し、良好な密封状態を維持することが
困難であつた。 Conventionally, a seal 21 shown in FIG. 1 is known as this type of seal. Since the main lip 22 of this seal 21 is located on the high pressure side A, the main lip 22 is deformed by pressure, and the sealing performance fluctuates due to pressure changes, making it difficult to maintain a good sealing state.
本考案は、上記従来技術の問題点に鑑み成され
たもので、高圧流体に対する密封性を向上するこ
とを目的とするものである。 The present invention was created in view of the problems of the prior art described above, and aims to improve the sealing performance against high-pressure fluid.
本考案は上記目的を達成するため以下の構成を
有する。即ち、断面略弓状を呈するゴム状弾性材
製の本体が、内部に金属補強環を埋設された断面
略状外周部と断面略Ｊ字状内周リツプ部及び前
記外周部と前記内周リツプ部を連結する断面略逆
コ字状の可撓膜部から構成されており、前記外周
部と前記可撓膜部の外周側膜部との間に嵌着され
る軸方向部及び該軸方向部の低圧側一端から径方
向内方に向い中心部に軸貫通孔を有する円板部か
ら成るスペーサが前記本体と一体的に組合わさ
れ、ハウジングの環状凹所内に前記スペーサが低
圧側に位置する如くに嵌着され、前記可撓膜部の
内周側膜部の内周面であつて内周リツプ部の先端
部分に対向する位置に環状突起が形成されたこと
を特徴とする高圧用ダンパーシールである。 The present invention has the following configuration to achieve the above object. That is, a main body made of a rubber-like elastic material and having an approximately arcuate cross section has an outer circumferential portion having an approximately circular cross section in which a metal reinforcing ring is embedded, an inner circumferential lip portion having a substantially J-shaped cross section, and the outer circumferential portion and the inner circumferential lip. an axial portion fitted between the outer circumferential portion and an outer circumferential membrane portion of the flexible membrane portion; A spacer consisting of a disc part facing radially inward from one end on the low pressure side of the part and having an axial through hole in the center thereof is integrally combined with the main body, and the spacer is located on the low pressure side within an annular recess of the housing. A high-pressure damper, characterized in that the damper is fitted in the flexible membrane part as shown in FIG. It's a sticker.
以下、図面に基づき本考案の実施例を説明す
る。 Embodiments of the present invention will be described below based on the drawings.
第２図は本考案の実施例の高圧用ダンパーシー
ル１に関するもので、ハウジング２と該ハウジン
グ２を貫通して伸びる軸３との間にあつて高圧側
Ａから低圧側Ｂへの流体の漏洩を防止している。 FIG. 2 shows a high-pressure damper seal 1 according to an embodiment of the present invention, in which fluid leaks from a high-pressure side A to a low-pressure side B between a housing 2 and a shaft 3 extending through the housing 2. is prevented.
断面略弓状を呈するゴム状弾性材製の本体４
は、断面略状外周部５と断面略Ｊ字状内周リツ
プ部６及び外周部５と内周リツプ部６を連結する
断面略逆コ字状の可撓膜部７から構成されてい
る。外周部５は、内部に金属補強環８が埋設さ
れ、ハウジング２の高圧側Ａに開口した環状凹所
９の内周面に嵌着される。内周リツプ部６は、内
部に金属補強環１０が埋設され、軸３の外周部へ
スプリング１１によつて押圧され摺動自在に嵌合
される。可撓膜部７は、内周側膜部１２の内周面
であつて、内周リツプ部６の先端部分１３に対向
する位置に環状突起１４が形成されている。 A main body 4 made of a rubber-like elastic material and having an approximately arcuate cross section
is composed of an outer circumferential portion 5 having a substantially J-shaped cross section, an inner circumferential lip portion 6 having a substantially J-shaped cross section, and a flexible membrane portion 7 having a substantially inverted U-shaped cross section connecting the outer circumferential portion 5 and the inner circumferential lip portion 6. The outer circumferential portion 5 has a metal reinforcing ring 8 embedded therein, and is fitted into the inner circumferential surface of an annular recess 9 that is open to the high-pressure side A of the housing 2 . A metal reinforcing ring 10 is embedded inside the inner circumferential lip portion 6, and is pressed and slidably fitted to the outer circumferential portion of the shaft 3 by a spring 11. The flexible membrane portion 7 has an annular protrusion 14 formed on the inner circumferential surface of the inner circumferential membrane portion 12 at a position facing the tip portion 13 of the inner circumferential lip portion 6 .
スペーサ１６は、軸方向部１７及び軸方向部１
７の低圧側の一端から径方向内方に向つて伸び中
心部に軸貫通孔１８を有する円板部１９より構成
されており、軸方向部１７が可撓膜部７の外周側
膜部１５と外周部との間に嵌着され、円板部１９
の高圧側側面が可撓膜部７の低圧側側面に当接さ
れ、円板部１９の低圧側側面がハウジング２の環
状凹所９の側面に当接されている。可撓膜部７の
内周側膜部１２の高圧側受圧面積は、内周リツプ
部６の高圧側受圧面積に比較し大きく形成されて
いる。従つて、高圧用ダンパーシール１の高圧側
側面に圧力が作用した場合、可撓膜部７が径方向
内方へ向つて撓み変形を生じ、内周側膜部１２の
内周面に形成された環状突起１４が内周リツプ部
６の先端部１３を径方向内方へ押圧する。 The spacer 16 includes an axial portion 17 and an axial portion 1
It is composed of a disc part 19 that extends radially inward from one end on the low pressure side of the flexible membrane part 7 and has an axial through hole 18 in the center, and the axial part 17 is connected to the outer peripheral side membrane part 15 of the flexible membrane part 7. and the outer peripheral part, and the disc part 19
The high-pressure side surface of the flexible membrane portion 7 is in contact with the low-pressure side surface of the flexible membrane portion 7 , and the low-pressure side side surface of the disc portion 19 is in contact with the side surface of the annular recess 9 of the housing 2 . The high pressure side pressure receiving area of the inner circumferential side membrane portion 12 of the flexible membrane portion 7 is formed to be larger than the high pressure side pressure receiving area of the inner circumferential lip portion 6. Therefore, when pressure is applied to the high-pressure side surface of the high-pressure damper seal 1, the flexible membrane portion 7 is deflected radially inward, and the flexible membrane portion 7 is bent and deformed on the inner peripheral surface of the inner peripheral membrane portion 12. The annular protrusion 14 presses the tip 13 of the inner lip 6 radially inward.
よつて、内周リツプ部６の軸３との摺動接触が
常に良好な状態で維持できるものであり、高圧流
体に対する密封性能を極めて向上することができ
た。加えて、高圧用ダンパーシールの高圧側の面
に補強用の織布２０を貼着することにより、耐圧
性をより一層向上することができる。 Therefore, the sliding contact between the inner circumferential lip portion 6 and the shaft 3 can always be maintained in a good condition, and the sealing performance against high pressure fluid can be greatly improved. In addition, by adhering the reinforcing fabric 20 to the high-pressure side surface of the high-pressure damper seal, pressure resistance can be further improved.
第１図は従来のシールの縦断面図、第２図は本
考案の実施例である高圧用ダンパーシール縦断面
図を示すものである。
１……高圧用ダンパーシール、２……ハウジン
グ、３……軸、４……本体、５……外周部、６…
…内周リツプ部、７……可撓膜部、８……金属補
強環、９……環状凹所、１０……金属補強環、１
１……スプリング、１２……内周側膜部、１３…
…先端部分、１４……環状突起、１５……外周側
膜部、１６……スペーサ、１７……軸方向部、１
８……軸貫通孔、１９……円板部、２０……織
布、２１……シール、２２……主リツプ。
FIG. 1 is a vertical cross-sectional view of a conventional seal, and FIG. 2 is a vertical cross-sectional view of a high-pressure damper seal according to an embodiment of the present invention. 1... High pressure damper seal, 2... Housing, 3... Shaft, 4... Main body, 5... Outer periphery, 6...
...Inner peripheral lip portion, 7...Flexible membrane portion, 8...Metal reinforcement ring, 9...Annular recess, 10...Metal reinforcement ring, 1
1... Spring, 12... Inner peripheral side membrane part, 13...
... Tip portion, 14 ... Annular projection, 15 ... Outer peripheral side membrane part, 16 ... Spacer, 17 ... Axial direction part, 1
8... Shaft through hole, 19... Disc portion, 20... Woven fabric, 21... Seal, 22... Main lip.
Claims (1)
びる軸３との間にあつて高圧側Ａから低圧側Ｂ
への流体の漏洩を阻止する高圧用ダンパーシー
ルにおいて、断面略弓状を呈するゴム状弾性材
製の本体４が、内部に金属補強環８を埋設され
た断面略状外周部５と内部に金属補強環１０
を埋設された断面略Ｊ字状内周リツプ部６及び
前記外周部５と前記内周リツプ部６を連結する
断面略逆コ字状の可等膜部７から構成されてお
り、前記外周部５と前記可撓膜部７の外周側膜
部１５との間に嵌着される軸方向部１７及び該
軸方向部１７の低圧側一端から径方向内方に向
つて伸び中心部に軸貫通孔１８を有する円板部
１９から成るスペーサ１６が前記本体４と一体
的に組合わされ、前記ハウジング２の環状凹所
９内に前記スペーサ１６が低圧側Ｂに位置する
如くに嵌着され、前記可撓膜部７の内周側膜部
１２の内周面であつて内周リツプ部６の先端部
分１３に対向する位置に環状突起１４が形成さ
れたことを特徴とする高圧用ダンパーシール。 ２ 本体４の高圧側Ａに面する表面に補強用の織
布２０を貼着して成る実用新案登録請求の範囲
第１項に記載の高圧用ダンパーシール。[Claims for Utility Model Registration] 1. Between the housing 2 and the shaft 3 extending through the housing 2, from the high pressure side A to the low pressure side B.
In a high-pressure damper seal that prevents fluid from leaking into the air, the main body 4 is made of a rubber-like elastic material and has a generally arcuate cross section. Reinforcement ring 10
It is composed of an inner circumferential lip portion 6 having a substantially J-shaped cross section embedded therein, and a flexible membrane portion 7 having a substantially inverted U-shaped cross section connecting the outer circumferential portion 5 and the inner circumferential lip portion 6. 5 and the outer peripheral side membrane part 15 of the flexible membrane part 7, and an axial part 17 that extends radially inward from one end on the low pressure side of the axial part 17 and extends axially through the center part. A spacer 16 consisting of a disk portion 19 having a hole 18 is integrally assembled with the main body 4, and is fitted into the annular recess 9 of the housing 2 such that the spacer 16 is located on the low pressure side B. A high-pressure damper seal characterized in that an annular protrusion 14 is formed on the inner circumferential surface of the inner circumferential side membrane portion 12 of the flexible membrane portion 7 at a position facing the tip portion 13 of the inner circumferential lip portion 6. 2. The high-pressure damper seal according to claim 1, which is made of a reinforcing woven fabric 20 attached to the surface of the main body 4 facing the high-pressure side A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983138273U JPS6045971U (en) | 1983-09-06 | 1983-09-06 | Damper seal for high pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983138273U JPS6045971U (en) | 1983-09-06 | 1983-09-06 | Damper seal for high pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6045971U JPS6045971U (en) | 1985-04-01 |
| JPS6339484Y2 true JPS6339484Y2 (en) | 1988-10-17 |
Family
ID=30310306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1983138273U Granted JPS6045971U (en) | 1983-09-06 | 1983-09-06 | Damper seal for high pressure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6045971U (en) |
-
1983
- 1983-09-06 JP JP1983138273U patent/JPS6045971U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6045971U (en) | 1985-04-01 |
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