JPH0210375Y2 - - Google Patents
Info
- Publication number
- JPH0210375Y2 JPH0210375Y2 JP1983177850U JP17785083U JPH0210375Y2 JP H0210375 Y2 JPH0210375 Y2 JP H0210375Y2 JP 1983177850 U JP1983177850 U JP 1983177850U JP 17785083 U JP17785083 U JP 17785083U JP H0210375 Y2 JPH0210375 Y2 JP H0210375Y2
- Authority
- JP
- Japan
- Prior art keywords
- seal
- pressure
- pressure receiving
- seal lip
- groove
- 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
- 238000012856 packing Methods 0.000 claims description 12
- 230000013011 mating Effects 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 16
- 238000007789 sealing Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Description
【考案の詳細な説明】
本考案は相対面する二部材間の間隙をシールす
る固定用パツキンに関する。更に詳しくは、パツ
キンの二部材間の取付部への装着を容易にして、
しかも、高圧力を受けても密封性を有するように
したパツキンに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fixing gasket that seals a gap between two members facing each other. More specifically, by making it easier to attach the packing to the attachment part between the two parts,
Moreover, the present invention relates to a gasket that has sealing properties even when subjected to high pressure.
本考案に関する先行技術としてはＯリングが存
在する。第１図はそのＯリングの断面図であり、
高圧力に対する密封性を保持するためにはＯリン
グを大きく圧縮しなければならない。しかし、一
方部材５２のＯリング装着溝５４にＯリング５０
を装着して20％以上圧縮状態で他方部材５３に嵌
入しようとすると、Ｏリング５０が他方部材５３
によつて一部切断することが多いので、大きく圧
縮することができず、高圧力に対する密封性に問
題を有している。 O-rings exist as prior art related to the present invention. Figure 1 is a cross-sectional view of the O-ring.
The O-ring must be highly compressed to maintain a tight seal against high pressures. However, the O-ring 50 does not fit into the O-ring mounting groove 54 of the one member 52.
When the O-ring 50 is attached and tries to fit into the other member 53 in a compressed state of 20% or more, the O-ring 50
Since it is often partially cut off by the process, it cannot be compressed to a large extent, and there is a problem in sealing performance against high pressure.
又、Ｏリング５０は受圧力の高低による弾性変
形がはげしく、このとき摩耗して密封性に問題を
有する。又、高圧力を受けるとＯリング装着溝５
４の受圧反対側で矩形状に変形するが、低圧力で
は復元してＯ形状になるので、この弾性変形過程
時にも圧力流体の漏洩が認められる。更に、Ｏリ
ング５０はＯリング装着溝５４内で反転すること
があり、圧力流体を漏洩させる原因ともなつてい
る。 Further, the O-ring 50 undergoes severe elastic deformation due to the level of pressure received, and at this time it wears out, causing problems in sealing performance. Also, when subjected to high pressure, the O-ring mounting groove 5
4, it deforms into a rectangular shape on the opposite side of the pressure receiving side, but at low pressure it restores itself to an O-shape, so leakage of pressure fluid is also observed during this elastic deformation process. Furthermore, the O-ring 50 may be inverted within the O-ring mounting groove 54, causing pressure fluid to leak.
本考案は上述のような問題点に鑑み成されたも
のであつて、その技術的課題は高圧力を受けても
パツキンが摩耗しないようにすると共に、密封能
力を発揮するようにしたものである。 The present invention was developed in view of the above-mentioned problems, and the technical challenge is to prevent the packing from wearing out even when subjected to high pressure, and to ensure that it exhibits its sealing ability. .
上述の課題を解決するするための本考案の技術
的手段は以下のように構成されている。すなわ
ち、二部材間の間隙を密封するゴム状弾性材製の
環状体を成し、受圧側面に受圧溝を有して両側に
シールリツプを形成すると共に、当該シールリツ
プの接合面に軸方向断面が鋸刃状を成すシール部
を形成し、且つ接合面の受圧反対側に断面円弧状
の凸部を設けたものである。 The technical means of the present invention for solving the above-mentioned problems is configured as follows. In other words, it forms an annular body made of a rubber-like elastic material that seals the gap between two members, has a pressure receiving groove on its pressure receiving side, forms a seal lip on both sides, and has a sawtooth axial cross section on the joint surface of the seal lip. A blade-shaped seal portion is formed, and a convex portion having an arcuate cross section is provided on the opposite side of the joint surface from which the pressure is received.
上述のように構成することによつて、本考案は
以下のような特有の効果を奏する。 By configuring as described above, the present invention has the following unique effects.
本考案はガス等の流体圧力に対して効果を発揮
するものであり、流体圧力を受けたパツキンは受
圧溝に作用する流体によつて、シールリツプが径
方向に押圧されるから、シールリツプに有するシ
ール部に発生する相手接合面への面圧によつて密
封効果を発揮する。又、パツキンが流体圧力の作
用を受けると凸部は径方向に伸ばされるから、こ
の凸部が相手接合面に安定した接合状態を成しパ
ツキンが変形して移動するのを防止し、パツキン
が摩耗損傷するのを効果的に防止する。更に、凸
部による密封効果はシール部との間に圧縮流体を
保持し、この圧縮流体によつてシール部の密封能
力をバツクアツプする。 This invention is effective against fluid pressure such as gas, and when the seal receives fluid pressure, the seal lip is pressed in the radial direction by the fluid acting on the pressure receiving groove. The sealing effect is achieved by the surface pressure generated on the mating surface. In addition, when the seal is subjected to the action of fluid pressure, the convex portion expands in the radial direction, so this convex portion forms a stable bond with the mating surface, preventing the seal from deforming and moving, and preventing the seal from moving. Effectively prevent wear and tear. Further, the sealing effect of the convex portion retains compressed fluid between the convex portion and the seal portion, and this compressed fluid backs up the sealing ability of the seal portion.
以下、本考案の一実施例を図面に基づいて詳細
に説明する。 Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.
ゴム状弾性材製の環状を成すパツキンには、受
圧側面に受圧溝２を有して当該受圧溝２の両側に
シールリツプ３を形成している。このシールリツ
プ３の相手部材との両接合面には断面鋸刃状のシ
ール部４が形成されている。このシール部４は両
接合面に設けることなくパツキン装着用溝７側と
反対の接合面のみに設けても良い。更に、接合面
の受圧反対側には径方向に突起する断面半円形状
の凸部５が設けられている。そして、一方部材で
あるヘツド６に設けられているパツキン装着用溝
７に当該パツキン１とバツクアツプリング９とを
組合わせて装着し、他方部材であるシリンダ８と
ヘツド７との嵌合面間を流出する流体を密封す
る。 The annular packing made of a rubber-like elastic material has a pressure receiving groove 2 on its pressure receiving side, and seal lips 3 are formed on both sides of the pressure receiving groove 2. Seal portions 4 having a sawtooth cross section are formed on both surfaces of the seal lip 3 that are joined to the mating member. This seal portion 4 may be provided only on the joint surface opposite to the gasket attachment groove 7 side, without providing it on both joint surfaces. Furthermore, a convex portion 5 having a semicircular cross section and protruding in the radial direction is provided on the opposite side of the joint surface from which the pressure is received. Then, the packing 1 and the back-up spring 9 are combined and installed in the packing mounting groove 7 provided in the head 6, which is one member, and the fitting surface between the cylinder 8, which is the other member, and the head 7 is installed. Seal the fluid that flows out.
上述のように構成された本考案のパツキンは流
体圧力を受けると受圧溝に流体圧力を受ける。同
時に、最初の少量の流体はパツキンとシリンダ内
周面との間に流入するが、シール部および凸部に
よりシールされるから、シール部間およびシール
部と凸部との空間に圧縮流体として保持される。
その結果、パツキンの受圧溝に流体圧力が強く受
けてもシールリツプの全周面がシリンダの内周面
に密着することがないので、パツキンの摺動時の
抵抗を大きくすることもないし、摺動時の摩擦も
防止できる。しかも、シール部は受圧溝側からの
力と空間両側からの流体圧力によりシヤープな面
圧を形成してパツキンのシール効果を発揮する。
更に、断面円弧状の凸部はシリンダ内周面に応じ
てシールリツプ部を圧力流体の作用方向に対し適
応した位置に保持し、シールリツプが薄肉であつ
ても上述の作用効果を発揮させることができる。
又、シールリツプの変形容易と断面円弧状の凸部
のみによる構成のパツキンはパツキン装着溝への
装着時の変形が容易である。尚、バツクアツプリ
ング９はパツキン１が相対嵌合する間隙に変形し
て入り込むのを阻止するもので、必ずパツキン１
と組合せるものではない。 When the gasket of the present invention configured as described above receives fluid pressure, the fluid pressure is applied to the pressure receiving groove. At the same time, an initial small amount of fluid flows between the packing and the inner peripheral surface of the cylinder, but since it is sealed by the seal and the convex part, it is retained as compressed fluid in the space between the seals and between the seal and the convex part. be done.
As a result, even if fluid pressure is strongly applied to the pressure-receiving groove of the seal, the entire circumferential surface of the seal lip does not come into close contact with the inner circumferential surface of the cylinder, so the resistance when the seal slides does not increase, and the sliding It also prevents the friction of time. Moreover, the seal portion forms a sharp surface pressure by the force from the pressure receiving groove side and the fluid pressure from both sides of the space, and exhibits the sealing effect of the packing.
Furthermore, the convex portion having an arcuate cross section holds the seal lip portion in a position suitable for the direction of action of the pressure fluid according to the inner circumferential surface of the cylinder, and even if the seal lip is thin, the above-mentioned effects can be exerted. .
Furthermore, the seal lip is easily deformed, and the gasket having only a convex portion having an arcuate cross section is easily deformed when it is installed in the gasket mounting groove. Note that the back-up spring 9 prevents the packing 1 from deforming and entering the gap where the packing 1 is fitted relative to each other.
It is not intended to be combined with
第１図は従来のＯリングの断面図、第２図は本
考案の一実施例のパツキンの断面図である。
１……パツキン、２……受圧溝、３……シール
リツプ、４……シール部、５……凸部、６……ヘ
ツド、７……パツキン装着用溝、８……シリン
ダ、９……バツクアツプリング、５０……Ｏリン
グ、５１……バツクアツプリング、５２……一方
部材、５３……他方部材、５４……Ｏリング装着
溝。
FIG. 1 is a sectional view of a conventional O-ring, and FIG. 2 is a sectional view of a packing according to an embodiment of the present invention. 1...Packing, 2...Pressure receiving groove, 3...Seal lip, 4...Seal portion, 5...Protrusion, 6...Head, 7...Groove for installing seal, 8...Cylinder, 9...Back Spring, 50... O-ring, 51... Backup spring, 52... One member, 53... Other member, 54... O-ring mounting groove.
Claims (1)
たパツキン装着用溝７内に装着されるものであつ
て、環状体を成し、受圧側端面に受圧溝２を有し
て当該溝２両側にシールリツプ３を形成すると共
に、当該シールリツプ３の相手部材との接合面の
受圧側に断面鋸刃状を成すシール部４を形成し、
且つ接合面の受圧反対側に断面円弧状の凸部５を
形成したゴム状弾性材製のパツキン。 It is installed in a gasket installation groove 7 provided in one of the two members facing each other, and forms an annular body, with a pressure receiving groove 2 on the pressure receiving side end surface, and a pressure receiving groove 2 on both sides of the groove 2. A seal lip 3 is formed on the seal lip 3, and a seal portion 4 having a sawtooth cross section is formed on the pressure receiving side of the joint surface of the seal lip 3 with the mating member,
The packing is made of a rubber-like elastic material and has a convex portion 5 having an arcuate cross section on the opposite side of the joint surface from which the pressure is received.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983177850U JPS6084862U (en) | 1983-11-17 | 1983-11-17 | Patsukin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983177850U JPS6084862U (en) | 1983-11-17 | 1983-11-17 | Patsukin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6084862U JPS6084862U (en) | 1985-06-11 |
| JPH0210375Y2 true JPH0210375Y2 (en) | 1990-03-14 |
Family
ID=30386286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1983177850U Granted JPS6084862U (en) | 1983-11-17 | 1983-11-17 | Patsukin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6084862U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5668386B2 (en) * | 2010-09-20 | 2015-02-12 | 株式会社アドヴィックス | Sealing device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS444495Y1 (en) * | 1964-01-14 | 1969-02-19 |
-
1983
- 1983-11-17 JP JP1983177850U patent/JPS6084862U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS444495Y1 (en) * | 1964-01-14 | 1969-02-19 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6084862U (en) | 1985-06-11 |
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