JPH04136360U - Metal laminated gasket - Google Patents
Metal laminated gasketInfo
- Publication number
- JPH04136360U JPH04136360U JP2266392U JP2266392U JPH04136360U JP H04136360 U JPH04136360 U JP H04136360U JP 2266392 U JP2266392 U JP 2266392U JP 2266392 U JP2266392 U JP 2266392U JP H04136360 U JPH04136360 U JP H04136360U
- Authority
- JP
- Japan
- Prior art keywords
- gasket
- metal plate
- sealing
- bent
- metal
- 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.)
- Granted
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 89
- 239000002184 metal Substances 0.000 title claims abstract description 89
- 238000007789 sealing Methods 0.000 claims abstract description 66
- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 239000007787 solid Substances 0.000 claims description 5
- 238000007906 compression Methods 0.000 abstract description 12
- 230000006835 compression Effects 0.000 abstract description 11
- 239000011324 bead Substances 0.000 description 10
- 239000011800 void material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 230000005489 elastic deformation Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- -1 zinc or lead. metal Chemical compound 0.000 description 1
Abstract
(57)【要約】
【目的】 金属積層形ガスケットの高い密封性能を保持
しながら、軽く、且つ、構造を簡単にして、小型エンジ
ン用ガスケットとしも使用可能にする。
【構成】 第１金属板２を密封する穴の周囲で折り返し
て第１密封部14を形成し、第１金属板２の第１屈曲部８
と、第２金属板４の第２屈曲部20とは、圧縮により互い
に干渉して第２密封部26を形成し、第２金属板４に密封
する穴を囲む外周穴18を設けて、第１密封部14に第２金
属板４が重ならないようにした。
(57) [Summary] [Purpose] To maintain the high sealing performance of a metal laminated gasket while making it lightweight and simple in structure, so that it can also be used as a gasket for small engines. [Structure] The first metal plate 2 is folded back around the hole to be sealed to form the first sealing part 14, and the first bent part 8 of the first metal plate 2 is folded back around the hole to be sealed.
and the second bent part 20 of the second metal plate 4 interfere with each other by compression to form a second sealing part 26, and the second metal plate 4 is provided with an outer peripheral hole 18 surrounding the hole to be sealed. The second metal plate 4 is prevented from overlapping the first sealing part 14.
Description
【０００１】0001
本考案は金属積層形ガスケットに関し、更に詳細には、積層枚数を少なくして 薄く形成できる金属積層形ガスケットに関するものである。 The present invention relates to a metal laminated gasket, and more specifically, the present invention relates to a metal laminated gasket. This invention relates to a metal laminated gasket that can be formed thin.
【０００２】0002
金属積層形ガスケットは、数枚の金属薄板を重ね合わせて形成するものであり 、密封する流体が、高温・高圧の場合であっても、高いシール性能を発揮するこ とができる特徴がある。しかしながら、高圧の流体を密封する場合には、密封す る穴の周りに、シールリングを取り付けたり、金属板を屈曲させてビードを形成 し、更に面圧調整板、表面板を積層するなど、構造が複雑となる。その結果、金 属積層形ガスケットは、軽くすることが難しく、また、生産性も悪く、他の種類 のガスケットに比較して、一般的に高価となる。 Laminated metal gaskets are made by stacking several thin metal plates. , exhibits high sealing performance even when the fluid to be sealed is at high temperature and pressure. It has the characteristic of being able to However, when sealing high-pressure fluid, sealing Attach a seal ring around the hole or bend the metal plate to form a bead. However, the structure becomes complicated as it requires lamination of a surface pressure adjustment plate and a surface plate. As a result, gold Multi-layer gaskets are difficult to make lightweight and have low productivity, making them difficult to make compared to other types. Generally expensive compared to other gaskets.
【０００３】0003
ところで、小形エンジン用のガスケットは、重量を軽くし、且つ、低価格とす ることが要求されるので、従来の金属積層形ガスケットは、密封性能が優れてい るにも関わらず、特別の場合を除き、小形エンジンには使用されるに至っていな い。 By the way, gaskets for small engines are lighter in weight and lower in price. Therefore, conventional metal laminated gaskets have excellent sealing performance. Despite this, it has not been used in small engines except in special cases. stomach.
【０００４】 そこで、金属積層形ガスケットを軽量とするために、米国特許第4,834,399 号 公報に記載の金属積層形ガスケットは、ガスケットを２枚の板で構成し、シリン ダ穴の周囲で、中側に空隙ができるように折り返した折返し部と、その外側に配 したビードとによって密封部を形成し、必要に応じ、金属板に柔らかいコーティ ングを施したものである。前記公報に具体的に開示されたものとしては、前記折 り返し部とビードとを同じ板に形成したもの、折返し部をリング板に形成し、ビ ードを設けた板に、前記折返し部の周囲に重なる穴を開け、互いに積層したもの 、折り返し方向と逆方向に板を突出させ、折返し部とビードとを融合させたよう な形状としたもの、折り返し部の中側に、ビード又はワイヤーリングを配置した ものなどが開示されている。前記の金属積層形ガスケットは、薄型且つ軽量とす ることができ、通常の目的には高い密封性能を得ることができる。しかしながら 、構造がやや複雑になり、面圧が均一に生じない場合があるという問題の外に、 大きな圧力が加わる穴、例えば、高圧縮比のエンジンのシリンダ穴を密封する手 段としては、性能が十分でなく、なお、改善する必要がある。0004 Therefore, in order to make the metal laminated gasket lightweight, U.S. Patent No. 4,834,399 The metal laminated gasket described in the publication consists of two plates, and the cylinder The folded part is folded back around the dowel hole to create a gap in the middle, and the folded part is placed on the outside. If necessary, apply a soft coat to the metal plate. This is the one that has been subjected to What was specifically disclosed in the above publication is the above-mentioned document. The folded part and the bead are formed on the same plate, and the folded part is formed on a ring plate and the bead is formed on the same plate. A board with a board provided with a hole that overlaps the periphery of the folded part, and then stacked on top of each other. , the plate protrudes in the direction opposite to the folding direction, and the folded part and bead appear to be fused. shaped, with a bead or wire ring placed inside the folded part. Things are disclosed. The metal laminated gasket mentioned above is thin and lightweight. It is possible to obtain high sealing performance for normal purposes. however , In addition to the problem that the structure is somewhat complicated and the surface pressure may not be generated uniformly, Hand sealing holes that are subject to large pressures, such as cylinder holes in engines with high compression ratios. As a stage, the performance is not sufficient and still needs to be improved.
【０００５】 本考案は、前記問題に着目して成されたものであり、構造が簡単で、軽く、経 済的に製造でき、しかも、密封圧が狭い領域に集中せず、高い密封性能を得るこ とのできる金属積層形ガスケットを提供することを目的としている。 更に本考案は、ボルトを強く締め付けられないか、又は、強く締め付けること のできない場合にも適用できる金属積層形ガスケットを提供することを目的とし ている。[0005] The present invention was developed by focusing on the above-mentioned problem, and has a simple structure, light weight, and long life. It can be manufactured economically, and the sealing pressure is not concentrated in a narrow area, achieving high sealing performance. The objective is to provide a metal laminated gasket that can Furthermore, this invention prevents bolts from being tightened strongly or The purpose is to provide a metal laminated gasket that can be applied even in cases where it is not possible. ing.
【０００６】[0006]
以上の目的を達成するための本考案の金属積層形ガスケットの構成は、第１金 属板に、密封する穴の周囲で第１金属板を折り返して第１密封部を形成し、その 周囲の第１金属板を一方の側に突出させて第１屈曲部を形成し、第２金属板に、 密封する穴の外側に配置する外周穴を開口し、該外周穴の縁部近くにリング状の 第２屈曲部を形成し、第１屈曲部と第２屈曲部とで第２密封部を形成したもので ある。 The structure of the metal laminated gasket of the present invention is to achieve the above objectives. A first metal plate is folded back around the hole to be sealed to form a first sealing part on the metal plate, and the first metal plate is folded back around the hole to be sealed, and The surrounding first metal plate is made to protrude to one side to form a first bent part, and the second metal plate is provided with: Open a peripheral hole to be placed outside the hole to be sealed, and insert a ring-shaped hole near the edge of the peripheral hole. A second bent part is formed, and a second sealed part is formed by the first bent part and the second bent part. be.
【０００７】 前記第１密封部の折り返し方向は、通常は、第１屈曲部の突出方向と反対側に 折り返すが、同じ方向に折り返すこともできる。なお、前記突出方向は、金属板 側から見た方向を意味する。また、内側に空隙を残した湾曲状に第１金属板を折 り返して第１密封部を形成し、ガスケットを圧縮した際に、該空隙が変形して面 圧が発生するようにしてもよく、前記折り返した中側に実質的な空隙をなくし、 第１密封部をソリッド状に形成してもよい。[0007] The folding direction of the first sealing part is usually opposite to the protruding direction of the first bent part. It can be folded back, but it can also be folded back in the same direction. Note that the protruding direction is Means the direction seen from the side. Additionally, the first metal plate is folded into a curved shape leaving a void inside. When the first sealing part is formed by repeating the process and the gasket is compressed, the gap deforms and becomes a surface. Pressure may be generated, and there is no substantial void on the folded inside side, The first sealing portion may be formed in a solid shape.
【０００８】 前記第１屈曲部の高さは、第１密封部の厚さ以下の高さとしてもよく、第１密 封部の厚さを越える高さとしてもよい。第１屈曲部の高さを第１密封部の厚さよ り高く形成する場合には、第１金属板を弾性金属板とし、且つ、第１屈曲部を傾 斜壁によって形成すると、ガスケットの圧縮により第１屈曲部が弾性変形して、 傾斜壁の頂部側と裾部側とに面圧を発生させ、面圧発生領域を広げることができ る。[0008] The height of the first bent portion may be less than or equal to the thickness of the first sealing portion. The height may exceed the thickness of the sealing portion. The height of the first bent part is the thickness of the first sealed part. If the first metal plate is to be formed higher, the first metal plate should be an elastic metal plate, and the first bent part should be inclined. When formed by an inclined wall, the first bent part is elastically deformed by compression of the gasket, Surface pressure can be generated on the top and bottom sides of the inclined wall, expanding the surface pressure generation area. Ru.
【０００９】 第１金属板の厚さを、第２金属板の厚さより厚くして、ガスケットを圧縮した 際に、第２密封部及び第１屈曲部の面圧を調整することができる。 第２屈曲部の断面形状には特に限定はないが、金属ガスケットに通常設けられ るビード形状、即ち、山形状、波形状、台形状などとする外、段差状に形成する など適宜の屈曲形状とすることができる。[0009] The thickness of the first metal plate is made thicker than the thickness of the second metal plate, and the gasket is compressed. At this time, the surface pressure of the second sealing part and the first bent part can be adjusted. There is no particular limitation on the cross-sectional shape of the second bent part, but it is usually provided in a metal gasket. In addition to bead shapes such as mountain, wave, trapezoid, etc., the bead shape may be stepped. It can be made into an appropriate bent shape.
【００１０】 前記各金属板にニッケルなどの耐熱・耐食性金属や、亜鉛、鉛などの耐食性金 属などをメッキしたり、各種のゴム、シリコーン樹脂などの軟質合成樹脂などの コーティング材を被覆して使用することができる。0010 Each metal plate is made of heat-resistant and corrosion-resistant metal such as nickel, or corrosion-resistant gold such as zinc or lead. metal, etc., various rubbers, soft synthetic resins such as silicone resin, etc. It can be used by covering with a coating material.
【００１１】[0011]
密封する穴の周囲に内側から外側に向かって、第１密封部と、第１屈曲部及び 第２屈曲部で形成する第２密封部とにより密封する前記手段は、第１密封部をソ リッド状とすることにより、第１密封部によって、高温・高圧、且つ激しく振動 するような条件下でも第２密封部のへたりを防止し、該第２密封部、即ち、第１ 屈曲部と第２屈曲部との干渉により幅広の密封域を形成させ、金属板２枚で、へ たりを防止し、且つ、幅広の密封部を形成させる作用がある。 Around the hole to be sealed, from the inside to the outside, a first sealing part, a first bent part and The means for sealing with a second sealing portion formed by a second bent portion includes By making it lid-shaped, the first sealed part prevents high temperatures, high pressures, and violent vibrations. This prevents the second sealing part from settling even under conditions where the second sealing part A wide sealed area is formed by the interference between the bent part and the second bent part, and two metal plates are used to seal the area. This has the effect of preventing water leakage and forming a wide sealed portion.
【００１２】 第１金属板を弾性金属板とし、且つ、第１屈曲部の高さを、第１密封部の厚さ より高い傾斜壁とした場合には、第２屈曲部が圧縮されて第１屈曲部と干渉して 密封圧を生じることの外に、第１屈曲部自体が圧縮されて起こる変形で、傾斜壁 の頂部側と裾部側とに面圧を発生させ、面圧発生領域を広げることができる。 また、前記第１屈曲部を、第１密封部の厚さ以下に形成すると、ボルトを強く 締め付けることができないか、又は、ボルトを強く締め付けることができない部 分がある場合に、有効である。0012 The first metal plate is an elastic metal plate, and the height of the first bent portion is equal to the thickness of the first sealed portion. In the case of a higher sloped wall, the second bent part is compressed and interferes with the first bent part. In addition to generating sealing pressure, the deformation caused by compression of the first bend itself causes the inclined wall to It is possible to generate surface pressure on the top side and the bottom side of the body, thereby expanding the surface pressure generation area. Further, if the first bent portion is formed to have a thickness equal to or less than the first sealed portion, the bolt can be strengthened. Parts that cannot be tightened or bolts cannot be tightened strongly It is effective if there is enough time.
【００１３】 第１屈曲部の形状には限定はないが、例えば、頂部が平らな台形状に形成する ことができる。また、第１屈曲部の高さが第１密封部の厚さ以下とする場合には 、第１屈曲部を傾斜させずに垂直状とすることもできる。[0013] The shape of the first bent part is not limited, but for example, it may be formed into a trapezoidal shape with a flat top. be able to. Furthermore, if the height of the first bent part is less than or equal to the thickness of the first sealed part, , the first bent portion may be vertical without being inclined.
【００１４】[0014]
以下、添付の図を参照して実施例により本考案を具体的に説明する。 実施例１の金属積層形ガスケット（以下単にガスケットという）１は、図１に 示すように、内燃機関のシリンダヘッドガスケットであって、それぞれ複数のシ リンダ穴Hc、水穴Hw、オイル穴Ho及びボルト穴Hbを設けており、図２に示すよう に、ガスケット１は、第１金属板２と、これに積層した第２金属板４とから成っ ている。 Hereinafter, the present invention will be described in detail by way of examples with reference to the accompanying drawings. The metal laminated gasket (hereinafter simply referred to as gasket) 1 of Example 1 is shown in FIG. As shown in the figure, a cylinder head gasket for an internal combustion engine has multiple cylinder head gaskets. A cylinder hole Hc, water hole Hw, oil hole Ho, and bolt hole Hb are provided, as shown in Figure 2. The gasket 1 consists of a first metal plate 2 and a second metal plate 4 laminated thereon. ing.
【００１５】 そして、第１金属板２は、ガスケット１の実質上全領域に延びる基部６と、密 封する穴であるシリンダ穴Hcの周囲に、図の下側に突設して設けた円錐台状の第 １屈曲部８と、シリンダ穴Hcの周りで第１金属板２を前記突設した方向と逆の方 向に折り返し、その折返し片10を第１屈曲部８（下から見て）の頂部12に折り重 ね、該折り重ねた部分にソリッド状の第１密封部14を形成している。即ち、シリ ンダ穴Hcは、第１金属板２を折り曲げた湾曲部16によって確定される。第１屈曲 部８の高さｈ1 は、第１密封部14の厚さ（第１金属板２の厚みの２倍）より大き な値となるように形成し、ガスケット１を圧縮すると、第１屈曲部８が圧縮され 、傾斜壁部22の両端周縁に圧縮による面圧を発生するようにしている。The first metal plate 2 includes a base 6 that extends over substantially the entire area of the gasket 1, and a truncated cone that protrudes toward the bottom of the figure around the cylinder hole Hc, which is a hole to be sealed. The first metal plate 2 is folded back around the shaped first bent portion 8 and the cylinder hole Hc in the opposite direction to the protruding direction, and the folded piece 10 is attached to the first bent portion 8 (as viewed from below). It is folded over the top portion 12, and a solid first sealing portion 14 is formed in the folded portion. That is, the cylinder hole Hc is determined by the curved portion 16 formed by bending the first metal plate 2. The height h1 of the first bent part 8 is formed to be larger than the thickness of the first sealing part 14 (twice the thickness of the first metal plate 2), and when the gasket 1 is compressed, the first The bent portion 8 is compressed, and surface pressure due to the compression is generated at both end peripheral edges of the inclined wall portion 22.
【００１６】 また、第２金属板４は、第１金属板２より薄い板を使用し、第１金属板２の基 部６の実質上全域に延び、第１屈曲部８を嵌入する外周穴18を開口し、外周穴18 の縁部に裾部を有する断面山形状のビードから成る第２屈曲部20を、外周穴18の 周囲に形成している。そして、第２屈曲部20の高さｈ2 は、第１金属板２の厚さ より高く形成し、ガスケット１が圧縮されたときに、第２屈曲部20に圧縮による 面圧を発生させる。The second metal plate 4 is made of a thinner plate than the first metal plate 2 and has an outer peripheral hole 18 that extends over substantially the entire area of the base 6 of the first metal plate 2 and into which the first bent portion 8 is fitted. A second bent portion 20 is formed around the outer circumferential hole 18 and is formed of a bead with a mountain-shaped cross section and a hem portion at the edge of the outer circumferential hole 18 . The height h2 of the second bent part 20 is formed higher than the thickness of the first metal plate 2, so that when the gasket 1 is compressed, surface pressure due to compression is generated in the second bent part 20.
【００１７】 そして、第２密封部26は、第１屈曲部８と第２屈曲部20とを配した部分に形成 される。即ち、第２金属板４に形成した前記外周穴18は、第１屈曲部８の裾部24 より僅かに大きく形成し、第１屈曲部８の圧縮による裾部24の変形と、第２屈曲 部20の圧縮による外周穴18の変形とが、互いに干渉するようにした。したがって 、第１屈曲部８及び第２屈曲部20がそれぞれ単独で変形する場合より変形に対す る反力が強くなり、第２密封部26に、幅広な高い面圧を発生させることができる 。[0017] The second sealed portion 26 is formed in a portion where the first bent portion 8 and the second bent portion 20 are arranged. be done. That is, the outer circumferential hole 18 formed in the second metal plate 4 is connected to the bottom portion 24 of the first bent portion 8. The hem portion 24 is deformed by compression of the first bent portion 8, and the second bent portion 8 is formed slightly larger. The deformation of the outer peripheral hole 18 due to the compression of the portion 20 is made to interfere with each other. therefore , the first bent portion 8 and the second bent portion 20 are more resistant to deformation than when deformed independently. The reaction force becomes stronger, and a wide and high surface pressure can be generated in the second sealing part 26. .
【００１８】 ガスケット１を締め付けると、前記第１密封部14はソリッド状であり非弾性的 に圧縮されるので、シリンダ穴Hcの形状などに影響がなく、しかも、締付け圧は 一部に集中せず、幅広で高い密封圧が得られる。また、第２密封部26は、第１密 封部14により、熱負荷及び密封する流体から保護され、前記のとおり互いに干渉 する弾性変形により高い面圧が得られる。しかも、ガスケット構成板を第１・第 ２金属板２，４の２枚とすることができるので、ガスケットの軽量化を達成し、 生産性も向上する。[0018] When the gasket 1 is tightened, the first sealing portion 14 is solid and non-elastic. Since it is compressed to A wide and high sealing pressure can be obtained without being concentrated in one area. Further, the second sealing part 26 is connected to the first sealing part 26. The seal 14 protects the heat load and the sealing fluid from interfering with each other as described above. A high surface pressure can be obtained due to the elastic deformation. Moreover, the gasket component plates are 2.Since it can be made of two metal plates 2 and 4, the weight of the gasket can be reduced. Productivity will also improve.
【００１９】 しかも、前記したとおり第２金属板４を第１金属板２より薄くしたので、ガス ケット１を締め付けたときに、第１屈曲部８及び第２屈曲部20は、いずれも完全 には圧縮されずクリープが防止され、また、第１密封部14をソリッド状とし、長 期間にわたり密封性能を維持することができる。 図３に示す実施例２のガスケット１は、第２屈曲部20の断面形状を、頂部を平 坦にした台形状に変更した外は、実施例１と同様にした。したがって、同様の部 材には同じ符号を付して説明を省略する。実施例２のガスケット１を締め付ける と、第２屈曲部20に発生する面圧は、一部に集中することがなく、頂部の平坦部 28に広がり、比較的広い範囲に高い面圧が発生する。[0019] Moreover, as mentioned above, since the second metal plate 4 is made thinner than the first metal plate 2, the gas When the bracket 1 is tightened, both the first bent part 8 and the second bent part 20 are completely closed. In addition, the first sealing part 14 is made into a solid shape and is long. Sealing performance can be maintained over a period of time. In the gasket 1 of Example 2 shown in FIG. 3, the cross-sectional shape of the second bent portion 20 is The process was the same as in Example 1 except that the shape was changed to a flat trapezoidal shape. Therefore, similar parts The same reference numerals are given to the members, and the explanation thereof will be omitted. Tighten gasket 1 of Example 2 Therefore, the surface pressure generated at the second bent portion 20 is not concentrated in one part, but is applied to the flat part at the top. 28, and high surface pressure occurs over a relatively wide area.
【００２０】 実施例１のガスケット１をアルミニウム合金製エンジン部材（図示せず）に使 用し、強く締め付けると、図２に示す第２屈曲部20の頂部に当たるエンジン部材 に圧痕ができることがある。その点、図３に示す実施例２の第２屈曲部20は、平 坦部28を有しているので、このような圧痕の発生を防止することができ、しかも 、実施例１と同様の密封性能を示すことができる。なお、実施例２の第２屈曲部 20を台形とせず緩い湾曲形状とすることもできる。[0020] Gasket 1 of Example 1 was used in an aluminum alloy engine member (not shown). When the engine member is used and tightened strongly, the engine member hits the top of the second bent portion 20 shown in FIG. There may be impressions on the skin. In this respect, the second bent portion 20 of the second embodiment shown in FIG. Since it has the flat part 28, it is possible to prevent the occurrence of such indentation, and also , the same sealing performance as in Example 1 can be shown. Note that the second bent portion of Example 2 20 can also have a gently curved shape instead of a trapezoid.
【００２１】 図４に示す実施例３のガスケット１は、第２屈曲部20をビードの変わりに段差 状に屈曲させた傾斜壁によって形成したものである。この場合には、実施例３の 第２屈曲部20の面圧発生機構は、第１屈曲部８と同様であり、しかも、ビード形 状の第２屈曲部より幅を狭く形成できるので、狭い場所に第２密封部26を形成す る必要がある場合に有利である。[0021] In the gasket 1 of Example 3 shown in FIG. 4, the second bent portion 20 is a step instead of a bead. It is formed by an inclined wall bent in a shape. In this case, in Example 3, The surface pressure generation mechanism of the second bent portion 20 is the same as that of the first bent portion 8, and has a bead shape. Since the width can be narrower than that of the second bent portion, it is possible to form the second sealing portion 26 in a narrow place. This is advantageous when there is a need to
【００２２】 図５に示す実施例４のガスケット１は、第１金属板２に形成する第１屈曲部８ に連続して、該第１屈曲部８を取り巻き、断面形状が台形状の段部30を形成した 外は、図１に示す実施例１のガスケット１と同様に形成したものである。実施例 ４のガスケット１の第２密封部は、第１屈曲部８及び第２屈曲部20の外に、段部 30による面圧が発生するので、実施例１の第２密封部26より面圧発生領域を広く することができる。[0022] The gasket 1 of Example 4 shown in FIG. 5 has a first bent portion 8 formed on the first metal plate 2. A stepped portion 30 having a trapezoidal cross-sectional shape is formed continuously around the first bent portion 8. The outside was formed similarly to the gasket 1 of Example 1 shown in FIG. Example The second sealing part of the gasket 1 of No. 4 includes a stepped part in addition to the first bent part 8 and the second bent part 20. Since surface pressure is generated by can do.
【００２３】 図６に示す実施例５のガスケット１は、第２金属板４の両面に、コーティング 層32を被覆したものであり、その他の部分は実施例１のガスケット１と同様に形 成した。コーティング層32をゴム、合成樹脂などの柔らかい材料とすると耐熱性 に限界があるが、ツールマークなどの細かな傷に対する密封性を向上させるので シリンダ穴Hcだけでなく、水穴Hw、オイル穴Ｈo などの液体穴の密封に特に有効 である。コーティング層32の代わりにメッキ層を形成することもできる。[0023] In the gasket 1 of Example 5 shown in FIG. 6, both surfaces of the second metal plate 4 are coated. The other parts have the same shape as the gasket 1 of Example 1. accomplished. Heat resistance is achieved when the coating layer 32 is made of a soft material such as rubber or synthetic resin. However, it improves sealing performance against small scratches such as tool marks. Particularly effective for sealing not only cylinder hole Hc but also liquid holes such as water hole Hw and oil hole Ho. It is. A plating layer can also be formed instead of the coating layer 32.
【００２４】 図７に示す実施例６のガスケット１は、湾曲部16に空隙34を設け、第１密封部 14を弾性変形可能に形成すると共に、第２屈曲部20を、前記各実施例１〜５とは 逆向きに配置し、外周穴18の縁部を第１屈曲部８の頂部側に接近させる大きさに 形成した。実施例６のガスケット１の圧縮初期に、空隙34が圧縮されて湾曲部16 が弾性変形し、該部分に面圧を発生させる。したがって、第１屈曲部８の変形を 制限するように作用し、その反力で高い面圧を発生させることができる。[0024] The gasket 1 of Example 6 shown in FIG. 7 has a gap 34 in the curved part 16, and 14 is formed to be elastically deformable, and the second bent portion 20 is different from those in each of Examples 1 to 5 above. It is arranged in the opposite direction, and the size is such that the edge of the outer peripheral hole 18 approaches the top side of the first bent part 8. Formed. At the initial stage of compression of the gasket 1 in Example 6, the void 34 is compressed and the curved portion 16 deforms elastically and generates surface pressure on the part. Therefore, the deformation of the first bent portion 8 is It acts as a restriction, and the reaction force can generate high surface pressure.
【００２５】 以降に示す実施例７〜10は、いずれも第１屈曲部８の高さｈ1 を、第１密封部 14の厚さ以下とした場合である。即ち、図８に示す実施例７のガスケット１にお いて、第１屈曲部８の高さｈ1 は、第１密封部14よりΔｈだけ低く形成している 。その他は、図１〜図７に示したガスケット１と同様に形成したので、同様の部 材には同じ符号を付し、説明を省略する。なお、実施例７以降の実施例において は、第１屈曲部８は、直接圧縮されることがないので、傾斜壁22を垂直状とし、 第１密封部14と第２密封部26とをより近付けることもできる。Examples 7 to 10 shown below are all cases in which the height h 1 of the first bent portion 8 is set to be equal to or less than the thickness of the first sealing portion 14 . That is, in the gasket 1 of Example 7 shown in FIG. 8, the height h 1 of the first bent portion 8 is formed to be lower than the first sealing portion 14 by Δh. Since the other parts were formed in the same manner as the gasket 1 shown in FIGS. 1 to 7, the same reference numerals are given to the same members, and the description thereof will be omitted. In Examples 7 and later, since the first bent portion 8 is not directly compressed, the inclined wall 22 is made vertical, and the first sealing portion 14 and the second sealing portion 26 are made more vertical. You can also get closer.
【００２６】 実施例７のガスケット１を、図９に示すようにシリンダヘッド36とシリンダブ ロック38とによって締め付けると、先ず、基部６はシリンダヘッド36に接触せず 、縁部10と第２屈曲部20とが圧縮される。したがって、主として第１屈曲部８の 裾部24と基部６と合流部分がシリンダヘッド36側に押圧され、第１屈曲部８によ るシリンダブロック38方向の対抗力を生じる。その結果、第２屈曲部20は、前記 締付け力と前記対抗力とによって強く圧縮され、第２密封部26に均一な面圧が発 生する。[0026] The gasket 1 of Example 7 was attached to the cylinder head 36 and cylinder tab as shown in FIG. When the lock 38 is tightened, the base 6 does not come into contact with the cylinder head 36. , the edge 10 and the second bent portion 20 are compressed. Therefore, mainly the first bent portion 8 The part where the skirt part 24 and the base part 6 meet is pressed toward the cylinder head 36 side, and the first bent part 8 This generates a counterforce in the direction of the cylinder block 38. As a result, the second bent portion 20 It is strongly compressed by the tightening force and the counter force, and a uniform surface pressure is generated on the second sealing part 26. live.
【００２７】 前記のとおり、実施例７のガスケット１のように第２屈曲部20の高さを第１密 封部14の厚さ以下とすれば、実施例１〜５のガスケット１と異なり、ガスケット １の締め付けで、第１屈曲部８が直接圧縮されることがない。したがって、実施 例１〜６の場合より小さな締め付け力で、同様に第２密封部26により均一な面圧 を発生させることがてきる。したがって、他の条件にもよるが、ガスケット１を 締め付けるボルト（図示せず）の軸力を強くできないか、又は、強く締め付ける ことのできない部分には有用である。その他、第１密封部14の作用、即ち、分散 した面圧が発生し、且つ、熱負荷及び密封する液体から第２密封部26を保護し、 第２密封部26のへたりを防止するなどの作用・効果は、実施例１〜６と同様であ るので、説明を省略する。[0027] As mentioned above, as in the gasket 1 of Example 7, the height of the second bent portion 20 is set to the first density. If the thickness is equal to or less than the thickness of the sealing part 14, unlike the gasket 1 of Examples 1 to 5, the gasket 1, the first bent portion 8 is not directly compressed. Therefore, implementation The tightening force is smaller than in Examples 1 to 6, and the surface pressure is also uniform due to the second sealing part 26. can be generated. Therefore, depending on other conditions, gasket 1 The axial force of the tightening bolt (not shown) cannot be increased, or the bolt must be tightened too strongly. This is useful for areas where it is impossible to do so. In addition, the action of the first sealing part 14, that is, the dispersion surface pressure is generated, and protects the second sealing part 26 from heat load and the sealing liquid, The functions and effects, such as preventing the second sealing part 26 from settling, are the same as in Examples 1 to 6. Therefore, the explanation will be omitted.
【００２８】 図10に示す実施例８のガスケット１は、図４と同様に、第２屈曲部20の断面形 状を段差状とした場合であり、第１屈曲部８の高さを第１密封部14の厚さより低 くした以外は、実施例３のガスケット１と同様に動作し、高い密封性能を得るこ とができる。 図11に示す実施例９のガスケット１は、第２屈曲部20の頂部40が第１金属板２ に接するように配置したものである。実施例９のガスケット１を圧縮すると、外 周穴18の縁部は、圧縮の過程で第１屈曲部８の傾斜壁部22と干渉するようになり 、前記各実施例と同様に動作する。なお、図11において、傾斜壁部22を切り立っ た垂直状に形成し、外周穴18の縁部を第１屈曲部８に接近させて配置し、圧縮初 期に、第１屈曲部８と第２屈曲部20とを干渉させるように変形して実施すること もできる。[0028] The gasket 1 of Example 8 shown in FIG. 10 has a cross-sectional shape of the second bent portion 20, as in FIG. This is a case where the shape is stepped, and the height of the first bent part 8 is lower than the thickness of the first sealed part 14. The gasket 1 operates in the same manner as the gasket 1 of Example 3 except for the reduction, and high sealing performance can be obtained. I can do it. In the gasket 1 of Example 9 shown in FIG. 11, the top portion 40 of the second bent portion 20 It is placed so that it is in contact with the When the gasket 1 of Example 9 is compressed, the outer The edge of the peripheral hole 18 comes to interfere with the inclined wall part 22 of the first bent part 8 during the compression process. , operates in the same manner as each of the embodiments described above. In addition, in FIG. 11, the inclined wall portion 22 is The edge of the outer peripheral hole 18 is arranged close to the first bent part 8, and the first compression In the period, the first bent part 8 and the second bent part 20 are deformed so as to interfere with each other. You can also do it.
【００２９】 図12に示す実施例10のガスケット１は、実施例７の変形例であり、湾曲部16に 空隙34を設け、第１密封部14を弾性変形可能に形成したものであり、その他は実 施例７と同様に形成した。このガスケット１は、実施例６のガスケット１と同様 に、圧縮初期に、空隙34が圧縮されて湾曲部16が弾性変形し、該部分に面圧を発 生させ、第１密封部14に発生する面圧を、より高めることができる。[0029] The gasket 1 of Example 10 shown in FIG. A void 34 is provided, and the first sealing part 14 is formed to be elastically deformable, and the rest is not actually the same. It was formed in the same manner as in Example 7. This gasket 1 is similar to the gasket 1 of Example 6. In the initial stage of compression, the void 34 is compressed and the curved portion 16 is elastically deformed, generating surface pressure on the portion. This makes it possible to further increase the surface pressure generated in the first sealing portion 14.
【００３０】[0030]
以上説明したように本考案の金属積層形ガスケットは、弾性変形がないか、あ っても僅かな変形に制限した第１密封部に、より均等に分散した面圧を発生させ 、しかも、熱負荷及び密封する流体から第２密封部を保護し、第２密封部は、第 １屈曲部と第２屈曲部との弾性変形による干渉で、幅広で高い面圧を、２枚の金 属板により発生させることにより高い密封性能を得ることができる。 As explained above, the metal laminated gasket of the present invention has no elastic deformation or Generates more evenly distributed surface pressure on the first sealing part, which is limited to slight deformation even when , and the second seal protects the second seal from heat loads and the sealing fluid; Due to the interference caused by elastic deformation between the first bent part and the second bent part, a wide and high surface pressure is applied to the two metal pieces. High sealing performance can be obtained by generating the heat with a metal plate.
【００３１】 したがって、本考案の金属積層形ガスケットは、薄く、且つ、軽いガスケット とすることができ、加工工数もより少なくすることができるので、生産性の向上 と、コストの逓減とを達成でき、小型エンジン用に金属積層形ガスケットを適用 することができる。[0031] Therefore, the metal laminated gasket of the present invention is a thin and light gasket. The number of man-hours required for machining can be reduced, improving productivity. A metal laminated gasket can be applied to small engines, achieving both a reduction in costs and a reduction in costs. can do.
【図１】本考案の実施例１による金属積層形ガスケット
の部分平面図である。FIG. 1 is a partial plan view of a metal laminated gasket according to a first embodiment of the present invention.
【図２】図１のII−II線縦断面図である。FIG. 2 is a vertical sectional view taken along the line II-II in FIG. 1;
【図３】本考案の実施例２による金属積層形ガスケット
の、図２と同様のガスケット部分の縦断面図である。3 is a longitudinal sectional view of a gasket portion similar to FIG. 2 of a metal laminated gasket according to a second embodiment of the present invention; FIG.
【図４】本考案の実施例３による金属積層形ガスケット
の、図２と同様のガスケット部分の縦断面図である。4 is a longitudinal sectional view of a gasket portion similar to FIG. 2 of a metal laminated gasket according to a third embodiment of the present invention; FIG.
【図５】本考案の実施例４による金属積層形ガスケット
の、図２と同様のガスケット部分の縦断面図である。5 is a longitudinal cross-sectional view of a gasket portion similar to FIG. 2 of a metal laminated gasket according to a fourth embodiment of the present invention; FIG.
【図６】本考案の実施例５による金属積層形ガスケット
の、図２と同様のガスケット部分の縦断面図である。6 is a longitudinal sectional view of a gasket portion similar to FIG. 2 of a metal laminated gasket according to a fifth embodiment of the present invention; FIG.
【図７】本考案の実施例６による金属積層形ガスケット
の、図２と同様のガスケット部分の縦断面図である。7 is a longitudinal sectional view of a gasket portion similar to FIG. 2 of a metal laminated gasket according to a sixth embodiment of the present invention; FIG.
【図８】本考案の実施例７による金属積層形ガスケット
の、図２と同様のガスケット部分の縦断面図である。8 is a longitudinal sectional view of a gasket portion similar to FIG. 2 of a metal laminated gasket according to a seventh embodiment of the present invention; FIG.
【図９】図８に示す金属積層形ガスケットの使用状態説
明用の縦断面図である。9 is a longitudinal sectional view for explaining the state of use of the metal laminated gasket shown in FIG. 8; FIG.
【図10】本考案の実施例８による金属積層形ガスケット
の、図２と同様のガスケット部分の縦断面図である。10 is a longitudinal cross-sectional view of a gasket portion similar to FIG. 2 of a metal laminated gasket according to Example 8 of the present invention; FIG.
【図11】本考案の実施例９による金属積層形ガスケット
の、図２と同様のガスケット部分の縦断面図である。11 is a longitudinal cross-sectional view of a gasket portion similar to FIG. 2 of a metal laminated gasket according to a ninth embodiment of the present invention; FIG.
【図12】本考案の実施例10による金属積層形ガスケット
の、図２と同様のガスケット部分の縦断面図である。12 is a longitudinal cross-sectional view of a gasket portion similar to FIG. 2 of a metal laminated gasket according to Example 10 of the present invention; FIG.
１ ガスケット（金属積層形ガスケット）
２ 第１金属板 ４ 第２金属板
８ 第１屈曲部 14 第１密封部
18 外周穴 20 第２屈曲部
22 傾斜壁部 26 第２密封部
34 空隙 Hc シリンダ穴
（密封する穴）1 Gasket (metal laminated gasket) 2 First metal plate 4 Second metal plate 8 First bent part 14 First sealing part 18 Peripheral hole 20 Second bending part 22 Slanted wall part 26 Second sealing part 34 Gap Hc Cylinder hole (hole to be sealed)
Claims (6)
金属板を折り返して第１密封部を形成し、その周囲の第
１金属板を一方の側に突出させて第１屈曲部を形成し、
第２金属板に、密封する穴の外側に配置する外周穴を開
口し、該外周穴の縁部近くにリング状の第２屈曲部を形
成し、第１屈曲部と第２屈曲部とで第２密封部を形成し
た金属積層形ガスケット。Claim 1: A first metal plate is provided with a first metal plate around a hole to be sealed.
folding back the metal plate to form a first sealing part; protruding the first metal plate around the first sealing part to one side to form a first bent part;
An outer peripheral hole is formed in the second metal plate to be placed outside the hole to be sealed, a ring-shaped second bent part is formed near the edge of the outer peripheral hole, and the first bent part and the second bent part are connected to each other. A metal laminated gasket forming a second sealing part.
屈曲部の突出方向と反対方向にした請求項１の金属積層
形ガスケット。2. The folding direction of the first sealing portion is set to the first
2. The metal laminated gasket according to claim 1, wherein the bent portion has a protruding direction opposite to that of the bent portion.
し、且つ、第１屈曲部の高さを、第１密封部の厚さより
高く形成し、ガスケットを圧縮すると、第１屈曲部が変
形するようにした請求項１又は２の金属積層形ガスケッ
ト。3. The first bent part is formed by an inclined wall, and the height of the first bent part is formed higher than the thickness of the first sealing part, and when the gasket is compressed, the first bent part is deformed. 3. The metal laminated gasket according to claim 1 or 2, wherein the gasket is configured to:
厚さ以下とした請求項１、２又は３の金属積層形ガスケ
ット。4. The metal laminated gasket according to claim 1, wherein the height of the first bent portion is equal to or less than the thickness of the first sealing portion.
した内側に空隙を実質上なくして形成し、圧縮の際にソ
リッド状の動作をするようにした請求項１、２、３又は
４の金属積層形ガスケット。5. Claims 1, 2, and 3, wherein the first sealing part is formed on the inside of the folded first metal plate with substantially no voids, so that it behaves like a solid when compressed. Or 4 metal laminated gasket.
より厚くした請求項１、２、３、４又は５の金属積層形
ガスケット。6. The metal laminated gasket according to claim 1, wherein the first metal plate is thicker than the second metal plate.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/683,430 US5240261A (en) | 1986-11-10 | 1991-04-10 | Steel laminate gasket |
| US683430 | 1991-04-10 | ||
| US07/840,827 US5209504A (en) | 1986-11-10 | 1992-02-25 | Metal laminate gasket |
| US840827 | 1992-02-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04136360U true JPH04136360U (en) | 1992-12-18 |
| JP2538221Y2 JP2538221Y2 (en) | 1997-06-11 |
Family
ID=27103105
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992022663U Expired - Fee Related JP2538221Y2 (en) | 1991-04-10 | 1992-04-10 | Metal laminated gasket |
| JP1995013544U Expired - Fee Related JP2598082Y2 (en) | 1991-04-10 | 1995-12-21 | Metal laminated gasket |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1995013544U Expired - Fee Related JP2598082Y2 (en) | 1991-04-10 | 1995-12-21 | Metal laminated gasket |
Country Status (1)
| Country | Link |
|---|---|
| JP (2) | JP2538221Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001173786A (en) * | 1999-12-15 | 2001-06-26 | Taiho Kogyo Co Ltd | Cylinder head gasket |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006242294A (en) * | 2005-03-03 | 2006-09-14 | Ishikawa Gasket Co Ltd | Metal-laminated cylinder-head gasket |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63141360U (en) * | 1987-03-10 | 1988-09-19 | ||
| JPH01118147U (en) * | 1988-02-02 | 1989-08-09 | ||
| JPH01165366U (en) * | 1988-05-12 | 1989-11-20 |
-
1992
- 1992-04-10 JP JP1992022663U patent/JP2538221Y2/en not_active Expired - Fee Related
-
1995
- 1995-12-21 JP JP1995013544U patent/JP2598082Y2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63141360U (en) * | 1987-03-10 | 1988-09-19 | ||
| JPH01118147U (en) * | 1988-02-02 | 1989-08-09 | ||
| JPH01165366U (en) * | 1988-05-12 | 1989-11-20 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001173786A (en) * | 1999-12-15 | 2001-06-26 | Taiho Kogyo Co Ltd | Cylinder head gasket |
| JP4543466B2 (en) * | 1999-12-15 | 2010-09-15 | 大豊工業株式会社 | Cylinder head gasket |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH081422U (en) | 1996-09-27 |
| JP2538221Y2 (en) | 1997-06-11 |
| JP2598082Y2 (en) | 1999-07-26 |
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