JP2011007226A - Seal structure and gasket - Google Patents

Seal structure and gasket Download PDF

Info

Publication number
JP2011007226A
JP2011007226A JP2009149224A JP2009149224A JP2011007226A JP 2011007226 A JP2011007226 A JP 2011007226A JP 2009149224 A JP2009149224 A JP 2009149224A JP 2009149224 A JP2009149224 A JP 2009149224A JP 2011007226 A JP2011007226 A JP 2011007226A
Authority
JP
Japan
Prior art keywords
gasket
pressure
seal structure
pressure receiving
mounting
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.)
Pending
Application number
JP2009149224A
Other languages
Japanese (ja)
Inventor
Kazuto Fujinami
和人 藤波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nok Corp
Original Assignee
Nok Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nok Corp filed Critical Nok Corp
Priority to JP2009149224A priority Critical patent/JP2011007226A/en
Publication of JP2011007226A publication Critical patent/JP2011007226A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Gasket Seals (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a seal structure and a gasket, having high sealability even when used at high pressure or even when wall thickness is thin.SOLUTION: In this seal structure for sealing between a first member internally having a pressure flow passage and a second member joined with respect to the end surface of the first member by using a gasket, the end surface of the first member is formed with a first mounting portion so as to surround the pressure flow passage, and also a first stopper is formed outside of the first mounting portion. The gasket includes: a pressure receiving portion having a predetermined overhanging margin with respect to the inner surface of the first member and inserted into the inner surface of the first member from the side of the end surface; and a flange formed to be overhung from one end of the pressure receiving portion to a periphery, stored in the first mounting portion, and attached by being sandwiched between the first mounting member and the second member. The gasket is used for the seal structure.

Description

本発明はシール構造及びガスケットに関し、詳しくは、高圧使用時や壁厚が薄い場合においても高いシール性を有するシール構造及びガスケットに関する。   The present invention relates to a seal structure and a gasket, and more particularly, to a seal structure and a gasket having a high sealing property even when a high pressure is used and the wall thickness is thin.

従来のガスケットによるシール構造を図6及び図7に示す。図中、100はガスケット、201は内部に圧力流路203を有する第1の部材、202は第1の部材201の端面201aに配設される第2の部材である。   A seal structure using a conventional gasket is shown in FIGS. In the figure, 100 is a gasket, 201 is a first member having a pressure flow path 203 therein, and 202 is a second member disposed on an end surface 201 a of the first member 201.

ガスケット100は、第1の部材201の端面201aと、第2の部材202の端面202aとの間に挟持される。これにより圧力流路203が閉塞され、シールされる。   The gasket 100 is sandwiched between the end surface 201 a of the first member 201 and the end surface 202 a of the second member 202. As a result, the pressure channel 203 is closed and sealed.

さらに、ガスケット100は、第1の部材201の図中下方向に向かって延びる折れ曲がり部101を有し、該折れ曲がり部101と第1の部材201との間にもシール面を形成することで、シール性を向上している。   Furthermore, the gasket 100 has a bent portion 101 extending downward in the figure of the first member 201, and by forming a sealing surface between the bent portion 101 and the first member 201, Improved sealing performance.

しかし、図7が示すように、従来のガスケット100によるシール構造において、圧力流路203内の流体が高圧になった場合は、ガスケット100の圧力流路203側の面が外側に押圧される。この押圧により、ガスケット100は、外側にはみ出すように変形し、これにより第2の部材202の端面202aとの面圧が低下し、さらには間隙202bを生じる。一度間隙202bが形成されると、流体圧はくさびのように間隙202bを外側に拡張し、密封流体(油)がシール部を突き抜ける事態を招く。   However, as shown in FIG. 7, when the fluid in the pressure channel 203 becomes a high pressure in the conventional seal structure with the gasket 100, the pressure channel 203 side surface of the gasket 100 is pressed outward. By this pressing, the gasket 100 is deformed so as to protrude outward, whereby the surface pressure with the end surface 202a of the second member 202 is lowered, and further, a gap 202b is generated. Once the gap 202b is formed, the fluid pressure expands the gap 202b outward like a wedge, causing a situation where the sealing fluid (oil) penetrates through the seal portion.

特に、従来のガスケット100によるシール構造において、第2の部材202の壁厚が十分に確保できない場合は、ガスケット100と第2の部材202との間に十分なシール面が形成されないため、高圧に耐えるだけのシール性を確保することができない問題がある。   In particular, when the wall thickness of the second member 202 cannot be sufficiently ensured in the conventional sealing structure using the gasket 100, a sufficient sealing surface is not formed between the gasket 100 and the second member 202, so that the pressure can be increased. There is a problem that it is not possible to ensure a sufficient sealing performance.

実開昭61−178054号全文明細書Full text of Shokai 61-178054

そこで、本発明の課題は、高圧使用時や壁厚が薄い場合においても高いシール性を有するシール構造及びガスケットを提供することにある。   Therefore, an object of the present invention is to provide a sealing structure and a gasket having high sealing performance even when a high pressure is used or when the wall thickness is thin.

本発明の他の課題は、以下の記載により明らかとなる。   Other problems of the present invention will become apparent from the following description.

上記課題は、以下の各発明によって解決される。   The above problems are solved by the following inventions.

(請求項1)
内部に圧力流路を有する第1の部材と、該第1の部材の端面に対して接合される第2の部材との間をガスケットを用いてシールするシール構造であって、
前記第1の部材の端面に前記圧力流路を取り囲むように第1の装着部位を形成するとともに、該第1の装着部位の外側に第1のストッパを形成し、
前記ガスケットは、前記第1の部材の内面に対する所定の張り代を有し、該第1の部材の内面に対して前記端面側から挿入される受圧部と、
前記受圧部の一端から外周に張り出すように形成されるとともに、前記第1の装着部位内に収容され、前記第1の装着部位と前記第2の部材との間で挟着されるフランジ部とを有してなることを特徴とするシール構造。
(Claim 1)
A seal structure that seals a gap between a first member having a pressure flow path therein and a second member joined to an end surface of the first member using a gasket,
Forming a first mounting part on the end face of the first member so as to surround the pressure flow path, and forming a first stopper outside the first mounting part;
The gasket has a predetermined tension margin with respect to the inner surface of the first member, and a pressure receiving portion inserted from the end surface side with respect to the inner surface of the first member;
A flange portion that is formed so as to protrude from one end of the pressure receiving portion to the outer periphery, is accommodated in the first mounting portion, and is sandwiched between the first mounting portion and the second member A seal structure characterized by comprising:

(請求項2)
第1の部材の内面を切り欠いて、前記受圧部を収容する第2の装着部位を形成するとともに、前記第2の装着部位における第2の部材と対向する面に第2のストッパを形成してなることを特徴とする請求項1記載のシール構造。
(Claim 2)
An inner surface of the first member is cut away to form a second mounting part that accommodates the pressure receiving portion, and a second stopper is formed on a surface of the second mounting part that faces the second member. The seal structure according to claim 1, wherein

(請求項3)
請求項1又は2記載のシール構造に用いられるガスケット。
(Claim 3)
The gasket used for the seal structure of Claim 1 or 2.

(請求項4)
前記フランジ部における前記第2の部材との当接面にビードを有することを特徴とする請求項3記載のガスケット。
(Claim 4)
The gasket according to claim 3, further comprising a bead on a contact surface of the flange portion with the second member.

本発明によれば、高圧使用時や壁厚が薄い場合においても高いシール性を有するシール構造及びガスケットを提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the seal structure and gasket which have a high sealing performance can be provided even when using high pressure or when the wall thickness is thin.

本発明に係るガスケットを示す断面図Sectional drawing which shows the gasket which concerns on this invention 図1に示すガスケットを用いたシール構造を示す断面図Sectional drawing which shows the sealing structure using the gasket shown in FIG. 図1に示すシール構造の作用を説明する図The figure explaining the effect | action of the seal structure shown in FIG. 本発明に係るガスケットを用いたシール構造の他の実施形態を示す断面図Sectional drawing which shows other embodiment of the seal structure using the gasket which concerns on this invention. 本発明に係るガスケットの他の実施形態を示す断面図Sectional drawing which shows other embodiment of the gasket which concerns on this invention 従来のシール構造(無圧時)を示す断面図Sectional view showing conventional seal structure (no pressure) 従来のシール構造(加圧時)を示す断面図Sectional view showing conventional seal structure (when pressurized)

以下、本発明の実施の形態について説明する。   Embodiments of the present invention will be described below.

図1は、本発明に係るガスケットを示す断面図、図2は、図1に示すガスケットを用いたシール構造を示す断面図である。   FIG. 1 is a sectional view showing a gasket according to the present invention, and FIG. 2 is a sectional view showing a seal structure using the gasket shown in FIG.

本発明に係るガスケット1は、図2に示すように、内部に圧力流路21を有する第1の部材2と、該第1の部材2の端面に対して接合される第2の部材3との間に装着されて使用される。   As shown in FIG. 2, the gasket 1 according to the present invention includes a first member 2 having a pressure channel 21 therein, and a second member 3 joined to an end surface of the first member 2. It is used in between.

ガスケット1は、筒状に形成された受圧部11と、この受圧部11の一方の端部11aから外周に張り出すように形成されたフランジ部12とを有している。   The gasket 1 has a pressure receiving portion 11 formed in a cylindrical shape, and a flange portion 12 formed so as to protrude from one end portion 11a of the pressure receiving portion 11 to the outer periphery.

受圧部11は、ガスケット1が装着される第1の部材2の内面の開口形状と同形状に形成され、その外径d1が第1の部材2の内径d2よりも0.1〜0.5mm程度大きく形成されており、第1の部材2の内面に対する張り代を有している。   The pressure receiving part 11 is formed in the same shape as the opening shape of the inner surface of the first member 2 to which the gasket 1 is attached, and the outer diameter d1 is 0.1 to 0.5 mm than the inner diameter d2 of the first member 2. It is formed to a large extent and has an allowance for the inner surface of the first member 2.

かかるガスケット1が装着される第1の部材2の端面には、ガスケット1の装着部位22及び第1のストッパ23が形成されている。   A mounting portion 22 of the gasket 1 and a first stopper 23 are formed on the end surface of the first member 2 to which the gasket 1 is mounted.

第1の装着部位22は、前記圧力流路を取り囲むように形成され、第1のストッパ23は、装着部位22の外側に、装着されたガスケットを取り囲むように凸設することによって段状に形成されている。   The first mounting portion 22 is formed so as to surround the pressure flow path, and the first stopper 23 is formed in a step shape by projecting outside the mounting portion 22 so as to surround the mounted gasket. Has been.

第1のストッパ23の装着部位22に対する高さh2は、ガスケット1のフランジ部12の厚さh1よりも0.25〜1mm程度小さく形成されている。   The height h2 of the first stopper 23 relative to the mounting portion 22 is formed to be smaller by about 0.25 to 1 mm than the thickness h1 of the flange portion 12 of the gasket 1.

また、ガスケット1のフランジ部12の外周への突出幅W1は、第1の装着部位22の幅W2と同一又は僅かに小さく形成されている。   Further, the protrusion width W1 of the gasket 1 to the outer periphery of the flange portion 12 is formed to be the same as or slightly smaller than the width W2 of the first mounting portion 22.

かかる第1の部材2の装着部位22に対し、ガスケット1を装着するには、ガスケット1の受圧部11を第1の部材2の圧力流路21に対して第1の部材の端面側から嵌め込み、フランジ部12が装着部位22の底部22aに当接するまで挿入させる。このとき、受圧部11の外径d1は圧力流路21の内径d2よりも僅かに大きい張り代を有しているため、受圧部11は圧力流路21の内面に対して圧入され、フランジ部12は装着部位22内に収容される。これにより、ガスケット1は、装着部位22の底部22aから圧力流路21の内面にかけて被覆するように装着される。   In order to mount the gasket 1 on the mounting portion 22 of the first member 2, the pressure receiving portion 11 of the gasket 1 is fitted into the pressure channel 21 of the first member 2 from the end surface side of the first member 2. The flange portion 12 is inserted until it contacts the bottom portion 22a of the mounting portion 22. At this time, since the outer diameter d1 of the pressure receiving part 11 has a tension margin slightly larger than the inner diameter d2 of the pressure channel 21, the pressure receiving part 11 is press-fitted into the inner surface of the pressure channel 21, and the flange part 12 is accommodated in the mounting part 22. As a result, the gasket 1 is mounted so as to cover from the bottom 22 a of the mounting portion 22 to the inner surface of the pressure channel 21.

次いで、第1の部材2の端面側から第2の部材3を接合する。ガスケット1のフランジ部12の厚さh1は、第1のストッパ23の高さh2よりも大きいため、フランジ部12は第1の部材2と第2の部材3との間で挟着されることで押し潰され、第1の部材2と第3の部材3との間の接合面をシールする。   Next, the second member 3 is joined from the end face side of the first member 2. Since the thickness h1 of the flange portion 12 of the gasket 1 is larger than the height h2 of the first stopper 23, the flange portion 12 is sandwiched between the first member 2 and the second member 3. And the joint surface between the first member 2 and the third member 3 is sealed.

このようなガスケット1によれば、図3に示すように、圧力流路21内の圧力がガスケット1に作用しても、前記第1のストッパ23によって、背景技術において説明したようなガスケットの外側へのはみ出しが阻止される。その結果、背景技術において説明した間隙の発生が抑止され、シール性が安定する。   According to such a gasket 1, as shown in FIG. 3, even if the pressure in the pressure channel 21 acts on the gasket 1, the first stopper 23 causes the outside of the gasket as described in the background art to be applied. Protruding to the outside is prevented. As a result, the generation of the gap described in the background art is suppressed, and the sealing performance is stabilized.

さらに、外側へのはみ出しが阻止されたことによって、弾性反発力を蓄えたガスケット1のフランジ部12は、該弾性反発力により第1のストッパ、第1の部材の装着面22の底面22a及び第2の部材3を押圧する。そのため、シール性が向上する。   Further, the flange portion 12 of the gasket 1 storing the elastic repulsive force due to the prevention of the protrusion to the outside causes the first stopper, the bottom surface 22a of the mounting surface 22 of the first member, and the first member by the elastic repulsive force. 2 member 3 is pressed. Therefore, the sealing performance is improved.

また、受圧部11は、圧力流路21内の圧力により、第1の部材の内面を押圧するため、シール性がさらに向上する。   Moreover, since the pressure receiving part 11 presses the inner surface of a 1st member with the pressure in the pressure flow path 21, a sealing performance improves further.

また、シール面での接触面積を大きくできるため、シール面積も増大させることができ、高圧下での耐久性にも優れるようになる。   Further, since the contact area on the seal surface can be increased, the seal area can be increased, and the durability under high pressure can be improved.

受圧部11には所定の張り代を持たせていることにより抜け防止を図ることもでき、作業性も良好となる。   By providing the pressure receiving portion 11 with a predetermined tension allowance, it is possible to prevent the pressure receiving portion 11 from coming off, and the workability is also improved.

図4は、本発明に係るガスケットを用いたシール構造の他の実施形態を示す断面図である。図1と同一符号の部位は同一構成の部位であるため、詳細な説明は省略する。   FIG. 4 is a cross-sectional view showing another embodiment of the seal structure using the gasket according to the present invention. Since the site | part of the same code | symbol as FIG. 1 is a site | part of the same structure, detailed description is abbreviate | omitted.

このシール構造においては、ガスケット1が装着される第1の部材2の端面に、第1の部材の内面を切り欠くことによって、第1のストッパ23側から順に、第1の装着部位22と、第2の装着部位24とが形成されている。第2の装着部位24は、第1の装着部位22の内側に配設され、第1の装着部位22及び第2の装着部位24ともに圧力流路21に連続して該圧力流路21を取り囲むように配設されている。   In this seal structure, by cutting out the inner surface of the first member at the end surface of the first member 2 to which the gasket 1 is mounted, the first mounting portion 22 and the first mounting portion 22 in order from the first stopper 23 side, A second mounting portion 24 is formed. The second mounting part 24 is disposed inside the first mounting part 22, and both the first mounting part 22 and the second mounting part 24 are continuous to the pressure channel 21 and surround the pressure channel 21. It is arranged like this.

第2の装着部位24は、第1の装着部位22よりも、第2の部材3と反対方向に深く形成され、その底部(第2の部材と対向する面)には、第2のストッパ25が形成される。   The second mounting part 24 is formed deeper in the direction opposite to the second member 3 than the first mounting part 22, and a second stopper 25 is provided at the bottom (the surface facing the second member). Is formed.

ガスケット1の受圧部11のフランジ部12に対する突出長さh3(図1参照)は、第2の装着部位24の第1の装着部位22の底部22aに対する深さh4と同一又は僅かに小さく形成されている。   The protruding length h3 (see FIG. 1) of the pressure receiving portion 11 of the gasket 1 with respect to the flange portion 12 is formed to be the same as or slightly smaller than the depth h4 of the second mounting portion 24 with respect to the bottom portion 22a of the first mounting portion 22. ing.

ガスケット1は、受圧部11がこの第2の装着部位24の内面に挿入されるため、この場合、受圧部11の外径d1は、第2の装着部位24の内径d3よりも0.1〜0.5mm程度大きく形成され、第1の部材2の内面に対する張り代を形成する。   In the gasket 1, the pressure receiving part 11 is inserted into the inner surface of the second mounting part 24. In this case, the outer diameter d 1 of the pressure receiving part 11 is 0.1 to 0.1 than the inner diameter d 3 of the second mounting part 24. It is formed large by about 0.5 mm and forms a tension allowance for the inner surface of the first member 2.

第1の部材2における第2の装着部位24の内径d3と圧力流路21の内径d2との差は、ガスケット1の受圧部11の厚みと同程度とすれば、ガスケット1を装着しても圧力流路21の内径を実質的に変更することがない。   Even if the gasket 1 is mounted, the difference between the inner diameter d3 of the second mounting portion 24 and the inner diameter d2 of the pressure channel 21 in the first member 2 is approximately the same as the thickness of the pressure receiving portion 11 of the gasket 1. The inner diameter of the pressure channel 21 is not substantially changed.

この図4に示すシール構造の場合、ガスケット1を装着するには、ガスケット1の受圧部11を第1の部材2の第2の装着部位24の内面に対して第1の部材2の端面側から嵌め込み、フランジ部12が第1の装着部位22の底部22aに当接するまで挿入させる。このとき、受圧部11の外径d1は第2の装着部位24の内径d3よりも僅かに大きい張り代を有しているため、受圧部11は第2の装着部位24の内面に対して圧入され、フランジ部12は第1の装着部位22内に収容される。これにより、ガスケット1は、第1の部材2の第1のストッパ23から内面にかけて被覆するように装着される。   In the case of the seal structure shown in FIG. 4, in order to mount the gasket 1, the pressure receiving portion 11 of the gasket 1 is placed on the end surface side of the first member 2 with respect to the inner surface of the second mounting portion 24 of the first member 2. The flange portion 12 is inserted until it contacts the bottom portion 22a of the first mounting portion 22. At this time, since the outer diameter d1 of the pressure receiving portion 11 has a tension margin slightly larger than the inner diameter d3 of the second mounting portion 24, the pressure receiving portion 11 is press-fitted into the inner surface of the second mounting portion 24. The flange portion 12 is accommodated in the first mounting portion 22. Thereby, the gasket 1 is mounted so as to cover from the first stopper 23 of the first member 2 to the inner surface.

次いで、第1の部材2の端面側から第2の部材3を接合する。ガスケット1のフランジ部12の厚さh1は、第1のストッパ23の高さh2よりも大きいため、フランジ部12は第1の部材2と第2の部材3との間で挟着されることで押し潰され、第1の部材2と第3の部材3との間の接合面をシールする。   Next, the second member 3 is joined from the end face side of the first member 2. Since the thickness h1 of the flange portion 12 of the gasket 1 is larger than the height h2 of the first stopper 23, the flange portion 12 is sandwiched between the first member 2 and the second member 3. And the joint surface between the first member 2 and the third member 3 is sealed.

この実施形態においても図2に示すシール構造と同様の効果を得ることができる。   Also in this embodiment, the same effect as the seal structure shown in FIG. 2 can be obtained.

さらに、このようなシール構造によれば、圧力流路21内の圧力がガスケット1に作用すると、その圧力を受圧部11の内面全体で受け、それによって該受圧部11は、第2の装着部位24の内面方向に圧縮され、弾性反発力を生じる。   Further, according to such a seal structure, when the pressure in the pressure flow path 21 acts on the gasket 1, the pressure is received by the entire inner surface of the pressure receiving portion 11, whereby the pressure receiving portion 11 is connected to the second mounting portion. Compressed in the direction of the inner surface of 24, an elastic repulsive force is generated.

この力は、受圧部11におけるフランジ部12側の端部11aを第2の部材3に、受圧部11におけるフランジ部12とは反対側の端部11bを第2のストッパ25に、それぞれ押圧するように働く。   This force presses the end 11a of the pressure receiving portion 11 on the flange portion 12 side against the second member 3 and the end 11b of the pressure receiving portion 11 opposite to the flange portion 12 against the second stopper 25, respectively. To work.

つまり、この実施形態においては、第2のストッパ25を設けたことにより、受圧部に蓄えられた弾性反発力をより効率的にシール面に伝搬させることが可能となり、図2に示すシール構造におけるシール性をさらに向上させる効果がある。また、上述した間隙の発生もさらに抑止される。   That is, in this embodiment, by providing the second stopper 25, it is possible to more efficiently propagate the elastic repulsion force stored in the pressure receiving portion to the seal surface, and in the seal structure shown in FIG. There is an effect of further improving the sealing performance. Further, the generation of the gap described above is further suppressed.

第1のストッパ23及び第2のストッパ25を設けたことによって得られる高いシール性は、圧力流路21内の圧力作用時において、該圧力を、ガスケットを介して間接的にシール面に伝搬させることによって発現する。このシール機構によれば、常時高い面圧でシール部が形成されている場合と比べて、長期の使用において、ガスケットへの負荷が小さく、該ガスケットを形成するゴムが劣化し難くなる。そのため、シールの安定性が高い。   The high sealing performance obtained by providing the first stopper 23 and the second stopper 25 allows the pressure to be propagated indirectly to the sealing surface via the gasket when the pressure in the pressure channel 21 is applied. It is expressed by. According to this seal mechanism, compared to the case where the seal portion is always formed with a high surface pressure, the load on the gasket is small during long-term use, and the rubber forming the gasket is unlikely to deteriorate. Therefore, the stability of the seal is high.

本発明に係るガスケット1には、図5に示すように、装着時に第2の部材3と当接する側のフランジ部12の表面に、例えば0.3〜0.5mm程度の突出高さを有するビード13を形成することもできる。ビード13はフランジ部12の表面に環状に形成される。ビード13の数は1本でも2本以上でもよい。   As shown in FIG. 5, the gasket 1 according to the present invention has a protruding height of, for example, about 0.3 to 0.5 mm on the surface of the flange portion 12 on the side in contact with the second member 3 at the time of mounting. A bead 13 can also be formed. The bead 13 is formed in an annular shape on the surface of the flange portion 12. The number of beads 13 may be one or two or more.

このようなビード13を設けることにより、シール時に第2の部材3に対するシール性をより向上させることができる。   By providing such a bead 13, the sealing performance with respect to the second member 3 can be further improved during sealing.

また、本発明に係るガスケット1には、図5に示すように、受圧部11におけるフランジ部12とは反対側の端部11bの外側に、面取り部11cを形成することもできる。   Moreover, as shown in FIG. 5, the gasket 1 which concerns on this invention can also form the chamfering part 11c in the outer side of the edge part 11b on the opposite side to the flange part 12 in the pressure receiving part 11. As shown in FIG.

このような面取り部11cを設けることにより、ガスケット1を装着する際に、第1の装着部位22の圧力流路21側の角部との接触によって、ガスケット1が損傷することを防止することができる。   By providing such a chamfered portion 11c, it is possible to prevent the gasket 1 from being damaged due to contact with the corner portion of the first mounting portion 22 on the pressure channel 21 side when the gasket 1 is mounted. it can.

また、本発明に係るガスケット1には、図5に示すように、フランジ部12の外側の端面における第1の部材2側に、面取り部12aを形成してもよい。   Moreover, as shown in FIG. 5, the gasket 1 which concerns on this invention may form the chamfering part 12a in the 1st member 2 side in the outer end surface of the flange part 12. As shown in FIG.

上記面取り部11cを設けた場合と同様に、このような面取り部12aを設けることにより、ガスケット1を装着する際に、第1のストッパ23における装着部位22側の角部との接触によって、ガスケット1が損傷することを防止することができる。   Similar to the case where the chamfered portion 11c is provided, by providing such a chamfered portion 12a, when the gasket 1 is mounted, the gasket is brought into contact with the corner portion of the first stopper 23 on the mounting portion 22 side. 1 can be prevented from being damaged.

1:ガスケット
11:受圧部
11a、11b:端部
11c:面取り部
12:フランジ部
12a:面取り部
13:ビード
2:第1の部材
21:圧力流路
22:第1の装着部位
22a:底部
23:第1のストッパ
24:第2の装着部位
25:第2のストッパ
1: Gasket 11: Pressure receiving portion 11a, 11b: End portion 11c: Chamfered portion 12: Flange portion 12a: Chamfered portion 13: Bead 2: First member 21: Pressure channel 22: First mounting portion 22a: Bottom portion 23 : First stopper 24: Second mounting part 25: Second stopper

Claims (4)

内部に圧力流路を有する第1の部材と、該第1の部材の端面に対して接合される第2の部材との間をガスケットを用いてシールするシール構造であって、
前記第1の部材の端面に前記圧力流路を取り囲むように第1の装着部位を形成するとともに、該第1の装着部位の外側に第1のストッパを形成し、
前記ガスケットは、前記第1の部材の内面に対する所定の張り代を有し、該第1の部材の内面に対して前記端面側から挿入される受圧部と、
前記受圧部の一端から外周に張り出すように形成されるとともに、前記第1の装着部位内に収容され、前記第1の装着部位と前記第2の部材との間で挟着されるフランジ部とを有してなることを特徴とするシール構造。
A seal structure that seals a gap between a first member having a pressure flow path therein and a second member joined to an end surface of the first member using a gasket,
Forming a first mounting part on the end face of the first member so as to surround the pressure flow path, and forming a first stopper outside the first mounting part;
The gasket has a predetermined tension margin with respect to the inner surface of the first member, and a pressure receiving portion inserted from the end surface side with respect to the inner surface of the first member;
A flange portion that is formed so as to protrude from one end of the pressure receiving portion to the outer periphery, is accommodated in the first mounting portion, and is sandwiched between the first mounting portion and the second member A seal structure characterized by comprising:
第1の部材の内面を切り欠いて、前記受圧部を収容する第2の装着部位を形成するとともに、前記第2の装着部位における第2の部材と対向する面に第2のストッパを形成してなることを特徴とする請求項1記載のシール構造。   An inner surface of the first member is cut away to form a second mounting part that accommodates the pressure receiving portion, and a second stopper is formed on a surface of the second mounting part that faces the second member. The seal structure according to claim 1, wherein 請求項1又は2記載のシール構造に用いられるガスケット。   The gasket used for the seal structure of Claim 1 or 2. 前記フランジ部における前記第2の部材との当接面にビードを有することを特徴とする請求項3記載のガスケット。   The gasket according to claim 3, further comprising a bead on a contact surface of the flange portion with the second member.
JP2009149224A 2009-06-23 2009-06-23 Seal structure and gasket Pending JP2011007226A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009149224A JP2011007226A (en) 2009-06-23 2009-06-23 Seal structure and gasket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009149224A JP2011007226A (en) 2009-06-23 2009-06-23 Seal structure and gasket

Publications (1)

Publication Number Publication Date
JP2011007226A true JP2011007226A (en) 2011-01-13

Family

ID=43564128

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009149224A Pending JP2011007226A (en) 2009-06-23 2009-06-23 Seal structure and gasket

Country Status (1)

Country Link
JP (1) JP2011007226A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3205425U (en) * 2015-09-03 2016-07-28 株式会社クロスポイント Flange packing with ribs

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5594419U (en) * 1978-12-26 1980-06-30
JP2000240800A (en) * 1999-02-18 2000-09-05 Masuda Mitsuru Packing
JP2004019887A (en) * 2002-06-19 2004-01-22 Toyooki Kogyo Co Ltd Sealing structure of terminal box in solenoid valve
JP2006170300A (en) * 2004-12-15 2006-06-29 Yaskawa Electric Corp Seal device of casing and industrial robot using the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5594419U (en) * 1978-12-26 1980-06-30
JP2000240800A (en) * 1999-02-18 2000-09-05 Masuda Mitsuru Packing
JP2004019887A (en) * 2002-06-19 2004-01-22 Toyooki Kogyo Co Ltd Sealing structure of terminal box in solenoid valve
JP2006170300A (en) * 2004-12-15 2006-06-29 Yaskawa Electric Corp Seal device of casing and industrial robot using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3205425U (en) * 2015-09-03 2016-07-28 株式会社クロスポイント Flange packing with ribs

Similar Documents

Publication Publication Date Title
EP3412941B1 (en) Gasket
KR101904521B1 (en) Plate-integrated gasket
US20080157485A1 (en) Gasket and Structure For Sealing Between Two Members
JP5760265B2 (en) Annular seal member
JP2012067790A (en) Gasket
JP2012102865A (en) Gate valve and branch pipe connection device
JP5029831B2 (en) gasket
JP2011256885A (en) Stationary sealing structure
JP2011007226A (en) Seal structure and gasket
JP6590626B2 (en) Sealing material and pipe fittings
KR20130061284A (en) Recess for o-ring
JP4292924B2 (en) gasket
JP2017015351A (en) Seal structure of heat exchanger
JP5045910B2 (en) Seal structure of electronic equipment
JP2017101795A (en) Seal method
JP2008025720A (en) Sealing construction of valve
JP5862263B2 (en) gasket
JP2001343074A (en) Sealing device
JP2015196510A (en) reservoir cap
JP2008138805A (en) Seal member
JP2007132197A (en) Seal structure
JP6180791B2 (en) Seal structure of the opening in the plane division case
WO2013028079A1 (en) Sealing device for well components
JP7408328B2 (en) gasket
JP7317616B2 (en) Gaskets and plumbing equipment

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20120510

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20130529

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20131105