JPH02118275A - Metal gasket - Google Patents
Metal gasketInfo
- Publication number
- JPH02118275A JPH02118275A JP27251388A JP27251388A JPH02118275A JP H02118275 A JPH02118275 A JP H02118275A JP 27251388 A JP27251388 A JP 27251388A JP 27251388 A JP27251388 A JP 27251388A JP H02118275 A JPH02118275 A JP H02118275A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- sealing material
- substrate
- sub
- metal gasket
- 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
- 239000002184 metal Substances 0.000 title claims description 41
- 239000003566 sealing material Substances 0.000 claims abstract description 55
- 239000011324 bead Substances 0.000 claims abstract description 26
- 239000012530 fluid Substances 0.000 claims abstract description 20
- 239000000758 substrate Substances 0.000 claims description 50
- 238000002485 combustion reaction Methods 0.000 claims description 26
- 239000000567 combustion gas Substances 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 8
- 238000007664 blowing Methods 0.000 abstract 1
- 230000002459 sustained effect Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 7
- 230000008602 contraction Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000010009 beating Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は金属ガスケットに係り、特に接合面の不整を
補償し得るとともにビードの滑動を担保し得るシール材
を適所に被着して設けた金属ガスケットに関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a metal gasket, and in particular, a metal gasket is provided with a sealing material that can compensate for irregularities in joint surfaces and ensure bead sliding at appropriate locations. Regarding metal gaskets.
被接合部材の接合面のシール、例えば内燃機関のシリン
ダヘッドとシリンダブロックとのデツキ面間のシールに
利用されている金属ガスケットは、シール部位をシール
すべく形成されたビードを被接合部材を接合するボルト
等の締結力により弾性変形させ、この弾性変形時の弾性
復元力及び弾性復元量によりデツキ面に弾性的なシール
線を形成する。これにより、デツキ面間のシールを果す
とともにデツキ面の歪に追従させてシール効果の維持を
果している。Metal gaskets, which are used to seal the joining surfaces of parts to be joined, such as the seal between the deck surfaces of the cylinder head and cylinder block of internal combustion engines, use a bead formed to seal the sealing part to join the parts to be joined. It is elastically deformed by the fastening force of bolts, etc., and an elastic seal line is formed on the deck surface by the elastic restoring force and amount of elastic restoring at the time of this elastic deformation. This achieves a seal between the deck surfaces and maintains the sealing effect by following the distortion of the deck surfaces.
このような金属ガスケットをシリンダヘッドとシリンダ
ブロックとのデツキ面間に介装してボルト等により締結
すると、この締結力によりシリンダヘッドが歪んでデツ
キ面間隙に不整を生じ、特に燃焼室周りのデツキ面間隙
が大となるとともにこの間隙が燃焼圧力により拡縮する
問題がある。When such a metal gasket is inserted between the deck surfaces of the cylinder head and cylinder block and fastened with bolts, etc., the cylinder head is distorted due to the tightening force, causing irregularities in the deck surface gap, and especially the deck around the combustion chamber. There is a problem that as the surface gap becomes larger, this gap expands and contracts due to combustion pressure.
また、ボルト締結力は、ボルト締結部位から離間するに
従い低下して作用することにより、ボルト締結部位の近
傍とボルト締結部位から離間する箇所とではボルト締結
力が異って作用し、ボルト締結部位から離間する箇所で
はボルト締結部位近傍よりも小さい締結力が作用してデ
ツキ面間隙に差が生じ、ビードによるシール圧が低下す
る問題があった。In addition, the bolt fastening force decreases as it moves away from the bolt fastening part, so the bolt fastening force acts differently in the vicinity of the bolt fastening part and in the part far away from the bolt fastening part. There is a problem in that a smaller fastening force acts at a location away from the bolt than in the vicinity of the bolt fastening area, resulting in a difference in the deck surface gap and a reduction in the sealing pressure due to the bead.
そこで、このような問題を解消するために、第５図に示
す如く、燃焼室孔８を囲繞する山型突状ビード１２と機
能保全流体たる冷却水やオイルの流通する機能保全流体
孔１０を囲繞するステップ状ビード１４とを形成した弾
性金属板からなる基板４に副板６を積層して設け、この
副板６の燃焼室孔８側の端縁６ｅを前記燃焼室孔８の外
方に折返して折返し部１６を形成するとともにこの折返
し部１６を前記基板４の燃焼室孔８側の端縁４ｅ面上に
重合して厚さＴの補償部１８を形成して設けた金属ガス
ケット２がある。Therefore, in order to solve this problem, as shown in FIG. 5, a chevron-shaped protruding bead 12 surrounding the combustion chamber hole 8 and a function maintenance fluid hole 10 through which cooling water or oil as a function maintenance fluid flows are provided. A sub-plate 6 is laminated on a substrate 4 made of an elastic metal plate having a surrounding step-shaped bead 14, and an edge 6e of the sub-plate 6 on the side of the combustion chamber hole 8 is placed outside the combustion chamber hole 8. A metal gasket 2 is provided by folding back to form a folded part 16 and superimposing this folded part 16 on the edge 4e of the substrate 4 on the side of the combustion chamber hole 8 to form a compensation part 18 having a thickness T. There is.
この金属ガスケット２を第４図に示す如く、被接合部材
である内燃機関のシリンダヘッド２２とシリンダブロッ
ク２４とのデツキ面２２ｄ・２４ｄ間に介装することに
より、ビード１２・１４によってデツキ面２２ｄ・２４
ｄ間のシールを果すとともにデツキ面２２ｄ・２４ｄの
歪に追従させてシール効果の維持を果し、また、厚さＴ
の補償部１８によって締結時のデツキ面２２ｄ・２４ｄ
の間隙Ｓの不整を補償するとともにデツキ面２２ｄ・２
４ｄの間隙Ｓの拡縮の防止を図っている。As shown in FIG. 4, by interposing this metal gasket 2 between the deck surfaces 22d and 24d of the cylinder head 22 and cylinder block 24 of the internal combustion engine, which are the members to be joined, the deck surface 22d is・24
d and maintains the sealing effect by following the distortion of the deck surfaces 22d and 24d.
The deck surfaces 22d and 24d at the time of fastening are
It compensates for the irregularity of the gap S and also improves the deck surface 22d.
This is intended to prevent the gap S of 4d from expanding or contracting.
なお、２６は燃焼室、２８はシリンダ、３０はシリンダ
ヘッド２２の機能保全流体孔、３２はシリンダブロック
２４の機能保全流体孔である。In addition, 26 is a combustion chamber, 28 is a cylinder, 30 is a function maintenance fluid hole of the cylinder head 22, and 32 is a function maintenance fluid hole of the cylinder block 24.
ところが、このような金属ガスケットにおいては、デツ
キ面に基板のと一ドや副板が直接押圧されることにより
デツキ面の不整を充分に補償し得ないとともにデツキ面
に対するビードの滑動を充分に担保し得ない不都合があ
った。However, in such a metal gasket, the unevenness of the deck surface cannot be sufficiently compensated for due to the direct pressure of the base plate or sub-plate on the deck surface, and the sliding of the bead against the deck surface cannot be sufficiently guaranteed. There was an unavoidable inconvenience.
そこで、第６図に示す如き副板６の折返し部１６の重合
される部位を除く基板４の外側面４ｂと前記折返し部１
６の先端面１６ａを含み副板６の外側面６ｂとにデツキ
面２２ｄ・２４ｄの不整を補償し得るシール材２０とし
て外側シール材２０ｂを夫々被着して設けた金属ガスケ
ット２や、第７図に示す如き基板４の内側面４ａ及び外
側面４ｂと副板６の外側面６ｂとにデツキ面２２ｄ・２
４ｄの不整を補償し得るシール材２０として内側シール
材２０ａ・外側シール材２０ｂを夫々被着して設けた金
属ガスケット２や、第８図に示す如き基板４の内側面４
ａ及び外側面４ｂと副板６の内側面６ａ及び外側面６ｂ
とにデツキ面２２ｄ・２４ｄの不整を補償し得るシール
材２０として内側シール材２０ａ・外側シール材２０ｂ
を夫々被着して設けた金属ガスケット２等が提案された
。Therefore, as shown in FIG.
The metal gasket 2 is provided with an outer sealing material 20b as a sealing material 20 capable of compensating for irregularities of the deck surfaces 22d and 24d, including the tip end surface 16a of the auxiliary plate 6 and the outer surface 6b of the sub-plate 6. As shown in the figure, deck surfaces 22d and 2
A metal gasket 2 provided with an inner sealing material 20a and an outer sealing material 20b respectively attached as a sealing material 20 capable of compensating for the irregularities of 4d, or the inner surface 4 of a substrate 4 as shown in FIG.
a and the outer surface 4b and the inner surface 6a and the outer surface 6b of the sub-plate 6
Inner sealing material 20a and outer sealing material 20b are used as sealing materials 20 that can compensate for irregularities of deck surfaces 22d and 24d.
A metal gasket 2, etc., has been proposed in which the metal gasket 2 is coated with the metal gasket 2, respectively.
しかしながら、第５・６図に示す金属ガスケット２は、
基板４の内側面４ａと副板６の内側面６ａとに内側シー
ル材２０ａを被着して設けていないことにより、基板４
と副板６との間に機能保全流体が漏洩する不都合がある
。また、第７・８図に示す金属ガスケット２は、基板４
の内側面４ａと副板６の内側面６ａとに内側シール材２
０ａを被着して設けていることにより、基板４と副板６
との間に機能保全流体が漏洩するおそれを回避し得るも
のであるが、補償部１８において基板４と副板６とに夫
々被着した内側シール材２０ａ・外側シール材２０ｂが
互いに重合して厚さが設定した厚さＴよりも大きくなる
ことにより、デツキ面２２ｄ・２４ｄの間隙Ｓの拡縮に
よる叩かれでシール材２０の厚さが減少して締付力の低
下やシール材２０のはみ出しを惹起し、この結果燃焼ガ
スの吹き抜けを招来する不都合がある。However, the metal gasket 2 shown in FIGS.
By not providing the inner sealing material 20a on the inner surface 4a of the substrate 4 and the inner surface 6a of the sub-plate 6, the substrate 4
There is an inconvenience that the function maintenance fluid leaks between the and the sub-plate 6. Furthermore, the metal gasket 2 shown in FIGS.
An inner sealing material 2 is attached to the inner surface 4a of the sub-plate 6 and the inner surface 6a of the sub-plate 6.
By attaching and providing 0a, the substrate 4 and the sub-plate 6
However, the inner sealing material 20a and the outer sealing material 20b attached to the substrate 4 and the sub-plate 6, respectively, may overlap with each other in the compensating portion 18. When the thickness becomes larger than the set thickness T, the thickness of the sealing material 20 decreases due to the beating caused by the expansion and contraction of the gap S of the deck surfaces 22d and 24d, resulting in a decrease in the tightening force and the protrusion of the sealing material 20. This results in the inconvenience of blow-by of combustion gas.
そこで、この発明の目的は、接合面の不整を補償し得る
とともにビードの滑動を担保し得るシール材を適所に被
着して設置することにより、基板と副板との間に機能保
全流体が漏洩する不都合を回避し得て、デツキ面間隙の
拡縮による叩かれでシール材の厚さが減少し燃焼ガスの
吹き抜けを招来する不都合を回避し得る金属ガスケット
を実現することにある。Therefore, an object of the present invention is to apply and install a sealing material that can compensate for the irregularities of the joint surface and ensure the sliding of the bead at the appropriate location, thereby allowing a functional maintenance fluid to flow between the substrate and the sub-plate. To provide a metal gasket which can avoid the inconvenience of leakage, and can also avoid the inconvenience of reducing the thickness of a sealing material due to beating due to expansion and contraction of a deck surface gap, causing combustion gas to blow through.
この目的を達成するために、この発明は、燃焼室孔を囲
繞する山型突状ビードと機能保全流体孔を囲繞するステ
ップ状ビードとを形成した弾性金属板からなる基板に副
板を積層して設け、この副板の燃焼室孔側端縁を前記燃
焼室孔外方に折返して折返し部を形成するとともにこの
折返し部を前記基板の燃焼室孔側端縁面上に重合して補
償部を形成して設けた金属ガスケットにおいて、前記基
板の内側面及び前記折返し部の重合される部位を除く前
記基板の外側面にシール材を被着して設けるとともに前
記折返し部先端面を含み前記副板の外側面にシール材を
被着して設けたことを特徴とする。In order to achieve this object, the present invention laminates a sub-plate on a substrate made of an elastic metal plate in which a chevron-shaped protruding bead surrounding a combustion chamber hole and a stepped bead surrounding a function-maintaining fluid hole are formed. The edge of the sub-plate on the combustion chamber hole side is folded back to the outside of the combustion chamber hole to form a folded part, and the folded part is superimposed on the edge surface of the substrate on the combustion chamber hole side to form a compensation part. In the metal gasket provided by forming a metal gasket, a sealing material is provided on the inner surface of the substrate and the outer surface of the substrate excluding the overlapped portion of the folded portion, and a sealing material is provided on the inner surface of the substrate and the outer surface of the substrate including the end surface of the folded portion. It is characterized in that a sealing material is applied to the outer surface of the plate.
この発明の構成によれば、基板の内側面にシール材を被
着して設けたことにより、基板と副板との間をシールす
ることができる。また、基板の内側面及び折返し部の重
合される部位を除く基板の外側面にシール材を被着して
設けるとともに折返し部先端面を含み副板の外側面にシ
ール材を被着して設けたことにより、接合面の不整を補
償し得るとともにビードの滑動を担保し得るシール材を
適所に被着して設けることができ、これにより補償部に
おいて基板及び副板に夫々被着したシール材が互いに重
合して厚さが大きくなることもない。According to the configuration of the present invention, by providing the sealing material on the inner surface of the substrate, it is possible to seal between the substrate and the sub-plate. In addition, a sealing material is provided on the inner surface of the substrate and the outer surface of the substrate excluding the overlapped portion of the folded portion, and a sealing material is coated and provided on the outer surface of the sub-plate including the end surface of the folded portion. As a result, it is possible to provide a sealing material that can compensate for irregularities in the bonding surface and ensure bead sliding at the appropriate locations, and this allows the sealing material that is applied to the substrate and sub-plate, respectively, to be provided at the compensation part. The thickness will not increase due to polymerization of each other.
以下図面に基づいてこの発明の実施例を詳細且つ具体的
に説明する。Embodiments of the present invention will be described in detail and specifically below based on the drawings.
第１・２図はこの発明の実施例を示すものである。第２
図において、２は金属ガスケット、４は基板、６は副板
である。この金属ガスケット２は、弾性金属板からなる
厚さｔ、の基板４と、この基板４の一側面に積層する厚
さｔ２の副板６とにより構成される。前記基板４と副板
６とには、燃焼室孔８と、機能保全流体たる冷却水やオ
イルの流通する機能保全流体孔１０とが夫々形成されて
いる。Figures 1 and 2 show an embodiment of the invention. Second
In the figure, 2 is a metal gasket, 4 is a substrate, and 6 is a sub-plate. This metal gasket 2 is composed of a substrate 4 made of an elastic metal plate and having a thickness t, and a sub-plate 6 having a thickness t2 laminated on one side of the substrate 4. A combustion chamber hole 8 and a function maintenance fluid hole 10 through which cooling water or oil as a function maintenance fluid flows are formed in the substrate 4 and the sub-plate 6, respectively.
前記基板４には、燃焼室孔８を囲繞する山型突状ビード
１２と、機能保全流体孔１０を囲繞するステップ状ビー
ド１４と、が形成されている。また、前記基板４に積層
された副板６の燃焼室孔８側の端縁６ｅは、燃焼室孔８
外方に折返して折返し部１６を形成する。この折返し部
１６を基板４の燃焼室孔８側の端縁８ｅ面上に重合して
補償部１８を形成して設ける。The substrate 4 is formed with a chevron-shaped protruding bead 12 surrounding the combustion chamber hole 8 and a step-like bead 14 surrounding the function maintenance fluid hole 10. Further, the edge 6e of the sub-plate 6 stacked on the substrate 4 on the combustion chamber hole 8 side is connected to the combustion chamber hole 8.
A folded portion 16 is formed by folding outward. The folded portion 16 is overlapped with the end edge 8e of the substrate 4 on the combustion chamber hole 8 side to form a compensation portion 18.
このような金属ガスケット２において、前記基板４の内
側面４ａ及び前記折返し部１６の重合される部位を除く
基板４の外側面４ｂにシール材２０を被着して設けると
ともに、前記折返し部１６の先端面１６ａを含み前記副
板６の外側面６ｂにシール材２０を被着して設ける。In such a metal gasket 2, a sealing material 20 is provided on the inner surface 4a of the substrate 4 and the outer surface 4b of the substrate 4 excluding the overlapped portion of the folded portion 16, and A sealing material 20 is provided on the outer surface 6b of the sub-plate 6 including the tip surface 16a.
即ち、前記基板４の内側面４ａには厚さｔ、の内側シー
ル材２０ａを被着して設け、前記折返し部１６の重合さ
れる部位を除く基板４の外側面４ｂには厚さｔ４の外側
シール材２０ｂを被着して設ける。また、副板６の内側
面６ａにはシール材２０を被着せず、前記折返し部１６
の先端面１６ａを含み前記副板６の外側面６ｂには厚さ
ｔ４の外側シール材２０ｂを被着して設ける。前記内側
シール材２０ａの厚さｔ、は、外側シール材２０ｂの厚
さｔ４の０．２〜０．８倍に設定する。即ち、ｔｚ ＝
ｔ４ Ｘ （９，２〜０．８）に設定する。That is, an inner sealing material 20a having a thickness of t is adhered to the inner surface 4a of the substrate 4, and an inner sealing material 20a having a thickness of t4 is provided to the outer surface 4b of the substrate 4 excluding the portion where the folded portion 16 is overlapped. An outer sealing material 20b is applied and provided. Further, the sealing material 20 is not applied to the inner surface 6a of the sub-plate 6, and the folded portion 16
An outer sealing material 20b having a thickness t4 is provided on the outer surface 6b of the sub-plate 6, including the tip end surface 16a. The thickness t of the inner seal material 20a is set to 0.2 to 0.8 times the thickness t4 of the outer seal material 20b. That is, tz =
Set to t4X (9,2 to 0.8).
これにより、補償部１８は、基板４の厚さｔ。Thereby, the compensator 18 has the thickness t of the substrate 4.
及び副板６の厚さｔ２と副板６の折返し部１６の厚さｔ
２とに加えて、基板４に被着した内側シール材２０ａの
厚さｔ、と副板６に被着した外側シール材２０ｂの厚さ
ｔ４と折返し部１６に被着した外側シール材２０ｂの厚
さｔ４とにより、厚さＴを有して形成される。この補償
部１８の厚さＴは、第１図に示す如く、シリンダヘッド
２２のデツキ面２２ｄとシリンダブロック２４のデツキ
面２４ｄとの間に形成される締結時の間隙Ｓの１〜２倍
に設定する。即ち、Ｔ＝ＳＸ （１〜２）に設定する。and the thickness t2 of the sub-plate 6 and the thickness t of the folded portion 16 of the sub-plate 6.
2, the thickness t of the inner sealing material 20a attached to the substrate 4, the thickness t4 of the outer sealing material 20b attached to the sub-plate 6, and the thickness t4 of the outer sealing material 20b attached to the folded portion 16. It is formed to have a thickness T due to the thickness t4. As shown in FIG. 1, the thickness T of the compensation portion 18 is 1 to 2 times the gap S formed between the deck surface 22d of the cylinder head 22 and the deck surface 24d of the cylinder block 24 during fastening. Set. That is, T=SX (1 to 2) is set.
なお、第１図において、２６は燃焼室、２８はシリンダ
、３０はシリンダヘッド２２の機能保全流体孔、３２は
シリンダブロック２４の機能保全流体孔である。In FIG. 1, 26 is a combustion chamber, 28 is a cylinder, 30 is a function maintenance fluid hole in the cylinder head 22, and 32 is a function maintenance fluid hole in the cylinder block 24.
また、基板４と副板６とを一体的に結合する場合には、
例えば図示しないボルト孔に中空円筒状の止め具（図示
せず）を挿入するとともに止め具の両端部を基板４、副
板６面上に折曲げてかしめを施したり、あるいは基板４
、副板６の外縁部の一部を突出させて形成し、これ等の
突出部位をスポット溶接やリベット止めすることにより
、一体的に結合する。Further, when the substrate 4 and the sub-plate 6 are integrally combined,
For example, a hollow cylindrical fastener (not shown) is inserted into a bolt hole (not shown), and both ends of the fastener are bent onto the surface of the board 4 and the sub-board 6 and caulked, or the board 4
, a part of the outer edge of the sub-plate 6 is formed to protrude, and these protruding parts are integrally joined by spot welding or riveting.
次に作用を説明する。Next, the effect will be explained.
シリンダヘッド２２とシリンダブロック２４とのデツキ
面２２ｄ・２４ｄ間に介装された金属ガスケット２は、
図示しない締結用ボルト等の締結手段の締結力により圧
縮され、各ビード１２・１４は、高さを低減して圧縮変
形される。この変形により各ビード１２・１４は、シリ
ンダヘッド２２とシリンダブロック２４との各デツキ面
２２ｄ・２４ｄに圧接してシール線を形成し、シールを
果す。The metal gasket 2 interposed between the deck surfaces 22d and 24d of the cylinder head 22 and cylinder block 24 is
Each bead 12 and 14 is compressed by the fastening force of a fastening means such as a fastening bolt (not shown), and is compressed and deformed to reduce its height. Due to this deformation, the beads 12 and 14 come into pressure contact with the respective deck surfaces 22d and 24d of the cylinder head 22 and cylinder block 24 to form a seal line and achieve sealing.
このとき、締結手段の締結力によりシリンダヘッド２２
が湾曲して歪みを生じ、特に、燃焼室２６周りのデツキ
面２２ｄ・２４ｄの間隙Ｓが大となる問題がある。しか
し、この間隙Ｓの１〜２倍の厚さＴに設定した補償部１
８を設けたことにより、間隙Ｓを補償することができ、
また、燃焼圧力による間隙Ｓの拡縮を防止することがで
きる。At this time, due to the fastening force of the fastening means, the cylinder head 22
is curved and distorted, and in particular, there is a problem that the gap S between the deck surfaces 22d and 24d around the combustion chamber 26 becomes large. However, the compensation part 1 is set to have a thickness T that is 1 to 2 times the gap S.
8, the gap S can be compensated for.
Further, it is possible to prevent the gap S from expanding or contracting due to combustion pressure.
このため、デツキ面２２ｄ・２４ｄの間隙Ｓからの燃焼
ガスのリークを防止でき、このリークした燃焼ガスによ
る金属ガスケット２の汚損や含有した物質の体積による
シール効果の低減を防止し得る。さらに、ビード１２・
１４に作用する交番荷重を弱化させてビード１２・１４
のへたりを防止して使用寿命を長くし、図示しない締結
用ボルトやこのボルトの係合するシリンダヘッド２２部
位の損壊を防止し得るとともに、締結用ボルトの締結力
の低下を防止し得て、安定したシール効果を得ることが
できる。Therefore, it is possible to prevent combustion gas from leaking from the gap S of the deck surfaces 22d and 24d, and to prevent the metal gasket 2 from being contaminated by the leaked combustion gas and from reducing the sealing effect due to the volume of the contained substance. Furthermore, bead 12.
14 by weakening the alternating load acting on the beads 12 and 14.
It is possible to prevent sagging and extend the service life, prevent damage to the not-illustrated fastening bolt and the portion of the cylinder head 22 to which this bolt engages, and prevent a decrease in the fastening force of the fastening bolt. , a stable sealing effect can be obtained.
このような金属ガスケット２について、基板４の内側面
４ａに内側シール材２０ａを被着して設けている。これ
により、基板４と副板６との間のシールを果すことがで
きる。このため、基板４と副板６との間に機能保全流体
孔１０から機能保全流体が漏洩する不都合を回避するこ
とができる。Such a metal gasket 2 is provided with an inner sealing material 20a attached to the inner surface 4a of the substrate 4. Thereby, a seal can be achieved between the substrate 4 and the sub-plate 6. Therefore, it is possible to avoid the inconvenience that the function preservation fluid leaks from the function preservation fluid hole 10 between the substrate 4 and the sub-plate 6.
また、基板４の内側面４ａ及び折返し部１６の重合され
る部位を除く基板４の外側面４ｂに内側シール材２０ａ
及び外側シール材２０ｂを夫々被着して設けるとともに
、折返し部１６の先端面１６ａを含み副仮６の外側面６
ｂに外側シール材２０ｂを被着して設けたことにより、
デツキ面２２ｄ・２４ｄの不整を補償し得るとともにビ
ード１２・１４の滑動を担保し得るシール材を適所に被
着して設けることができ、これにより補償部１８におい
て基板４及び副板６に夫々被着したシール材が互いに重
合して厚さが大きくなることもない。このため、デツキ
面２２ｄ・２４ｄの間隙Ｓの拡縮による叩かれでシール
材２０ａ・２０ｂの厚さが減少し燃焼ガスの吹き抜けを
招来する不都合を回避することができる。In addition, an inner sealing material 20a is provided on the inner surface 4a of the substrate 4 and the outer surface 4b of the substrate 4 excluding the overlapped portion of the folded portion 16.
and outer sealing material 20b are respectively applied and provided, and the outer surface 6 of the sub temporary 6 including the tip surface 16a of the folded portion 16
By applying the outer sealing material 20b to b,
A sealing material capable of compensating for the irregularities of the deck surfaces 22d and 24d and ensuring the sliding of the beads 12 and 14 can be applied and provided at the appropriate locations. The deposited sealing materials will not overlap each other and become thicker. Therefore, it is possible to avoid the problem that the thickness of the sealing materials 20a, 20b is reduced due to being hammered due to the expansion/contraction of the gap S of the deck surfaces 22d, 24d, causing combustion gas to blow through.
なお、この実施例においては、基板４に平板状の副板６
を積層して設けることによりビード１２・１４の滑動性
を担保させた金属ガスケット２を例示したが、第３図に
示す如く、基板４の山型突条ビード１２に副板６に形成
したビード３２を重合させて積層して設けることにより
ビード１２の弾性復元力を増加させた金属ガスケット２
に実施することも可能である。In this embodiment, a flat sub-plate 6 is provided on the substrate 4.
The metal gasket 2 has been exemplified in which the sliding properties of the beads 12 and 14 are ensured by laminating the beads 12 and 14, but as shown in FIG. A metal gasket 2 in which the elastic restoring force of the bead 12 is increased by polymerizing and laminating 32.
It is also possible to implement it.
このように、この発明によれば、基板の内側面にシール
材を被着して設けたことにより、基板と副板との間をシ
ールすることができる。このため、基板と副板との間に
機能保全流体が漏洩する不都合を回避することができる
。As described above, according to the present invention, by providing the sealing material on the inner surface of the substrate, it is possible to seal between the substrate and the sub-plate. Therefore, it is possible to avoid the inconvenience that the functional maintenance fluid leaks between the substrate and the sub-plate.
また、基板の内側面及び折返し部の重合される部位を除
く基板の外側面にシール材を被着して設けるとともに折
返し部先端面を含み副板の外側面にシール材を被着して
設けたことにより、接合面の不整を補償し得るとともに
ビードの滑動を担保し得るシール材を適所に被着して設
けることができ、これにより補償部において基板及び副
仮に夫々被着したシール材が互いに重合して厚さが大き
くなることもない。このため、デツキ面間隙の拡縮によ
る叩かれてシール材の厚さが減少し燃焼ガスの吹き抜け
を招来する不都合を回避することができる。In addition, a sealing material is provided on the inner surface of the substrate and the outer surface of the substrate excluding the overlapped portion of the folded portion, and a sealing material is coated and provided on the outer surface of the sub-plate including the end surface of the folded portion. As a result, it is possible to provide a sealing material that can compensate for irregularities in the joint surface and ensure the sliding of the bead, and that the sealing material that has been applied to the substrate and the sub-board at the compensation part is They will not overlap each other and become thicker. Therefore, it is possible to avoid the inconvenience that the thickness of the sealing material is reduced due to being hammered due to the expansion and contraction of the deck surface gap, causing combustion gas to blow through.
第１〜３図はこの発明の実施例を示し、第１図はデツキ
面間に介装した金属ガスケットの断面図、第２図は金属
ガスケットの断面図、第３図は別層様の金属ガスケット
の断面図である。
第４〜８図は従来例を示し、第４図はデツキ面間に介装
した金属ガスヶ・ノドの断面図、第５図はシール材を被
着していない金属ガスケットの断面図、第６〜８図は夫
々シール材を被着した金属ガスケットの断面図である。
図において、２は金属ガスケット、４は基板、６は副板
、８は燃焼室孔、１０は機能保全流体孔、１２は山型突
状ビード、１４はステップ状ビード、１６は折返し部、
１８は補償部、２０ａは内側シール材、２０ｂは外側シ
ール材、２２はシリンダヘッド、２４はシリンダブロッ
クである。
特許出願人 日本メタルガスケット株式会社代理人
弁理士 西郷義美
第４図Figures 1 to 3 show embodiments of the present invention, Figure 1 is a sectional view of a metal gasket interposed between deck surfaces, Figure 2 is a sectional view of a metal gasket, and Figure 3 is a separate layer of metal. FIG. 3 is a cross-sectional view of the gasket. Figures 4 to 8 show conventional examples; Figure 4 is a sectional view of a metal gas cap/nod inserted between the deck surfaces; Figure 5 is a sectional view of a metal gasket without a sealant; Figures 1 to 8 are cross-sectional views of metal gaskets each covered with a sealant. In the figure, 2 is a metal gasket, 4 is a substrate, 6 is a sub-plate, 8 is a combustion chamber hole, 10 is a function maintenance fluid hole, 12 is a chevron-shaped protruding bead, 14 is a stepped bead, 16 is a folded part,
18 is a compensator, 20a is an inner sealing material, 20b is an outer sealing material, 22 is a cylinder head, and 24 is a cylinder block. Patent applicant: Agent of Nippon Metal Gasket Co., Ltd.
Patent Attorney Yoshimi Saigo Figure 4
Claims (1)
孔を囲繞するステップ状ビードとを形成した弾性金属板
からなる基板に副板を積層して設け、この副板の燃焼室
孔側端縁を前記燃焼室孔外方に折返して折返し部を形成
するとともにこの折返し部を前記基板の燃焼室孔側端縁
面上に重合して補償部を形成して設けた金属ガスケット
において、前記基板の内側面及び前記折返し部の重合さ
れる部位を除く前記基板の外側面にシール材を被着して
設けるとともに前記折返し部先端面を含み前記副板の外
側面にシール材を被着して設けたことを特徴とする金属
ガスケット。1. A sub-plate is laminated on a substrate made of an elastic metal plate having a chevron-shaped protruding bead surrounding the combustion chamber hole and a step-like bead surrounding the function-maintaining fluid hole, and the combustion chamber hole of the sub-plate is laminated. A metal gasket in which a side edge is folded back to the outside of the combustion chamber hole to form a folded part, and the folded part is superimposed on the edge surface of the combustion chamber hole side of the substrate to form a compensation part, A sealing material is provided on the inner surface of the substrate and the outer surface of the substrate excluding the overlapped portion of the folded portion, and a sealing material is coated on the outer surface of the sub-plate including the tip end surface of the folded portion. A metal gasket characterized by being provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63272513A JPH076577B2 (en) | 1988-10-28 | 1988-10-28 | Metal gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63272513A JPH076577B2 (en) | 1988-10-28 | 1988-10-28 | Metal gasket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02118275A true JPH02118275A (en) | 1990-05-02 |
| JPH076577B2 JPH076577B2 (en) | 1995-01-30 |
Family
ID=17514949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63272513A Expired - Fee Related JPH076577B2 (en) | 1988-10-28 | 1988-10-28 | Metal gasket |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH076577B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0594570U (en) * | 1992-05-26 | 1993-12-24 | 日本ガスケット株式会社 | Metal gasket |
| JPH0594569U (en) * | 1992-05-26 | 1993-12-24 | 日本ガスケット株式会社 | Metal gasket |
| US5332237A (en) * | 1990-07-26 | 1994-07-26 | Taiho Kogyo Co., Ltd. | Metal gasket with welded shim |
| JPH0667962U (en) * | 1993-01-27 | 1994-09-22 | 株式会社ケットアンドケット | Rubber coating material Metal gasket |
| JPH10253688A (en) * | 1997-03-10 | 1998-09-25 | Sony Corp | Apparatus and method for continuity inspection of flexible circuit board |
| KR100314499B1 (en) * | 1998-05-05 | 2001-11-15 | 이시카와 신이치로우 | Metal Plate Gasket |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5879052U (en) * | 1981-11-24 | 1983-05-28 | 株式会社丸三パツキング製作所 | Metal gasket for cylinder head of internal combustion engine |
| JPS63210464A (en) * | 1987-02-25 | 1988-09-01 | Nippon Metal Gasket Kk | Laminated metal gasket |
| JPH01203644A (en) * | 1988-02-10 | 1989-08-16 | Kuniaki Numaya | Manufacture of metal gasket |
-
1988
- 1988-10-28 JP JP63272513A patent/JPH076577B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5879052U (en) * | 1981-11-24 | 1983-05-28 | 株式会社丸三パツキング製作所 | Metal gasket for cylinder head of internal combustion engine |
| JPS63210464A (en) * | 1987-02-25 | 1988-09-01 | Nippon Metal Gasket Kk | Laminated metal gasket |
| JPH01203644A (en) * | 1988-02-10 | 1989-08-16 | Kuniaki Numaya | Manufacture of metal gasket |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5332237A (en) * | 1990-07-26 | 1994-07-26 | Taiho Kogyo Co., Ltd. | Metal gasket with welded shim |
| US5385354A (en) * | 1990-07-26 | 1995-01-31 | Taiho Kogyo Co., Ltd. | Metal gasket |
| US5393076A (en) * | 1990-07-26 | 1995-02-28 | Taiho Kogyo Co., Ltd. | Metal gasket with base plate having coatings of diverse thicknesses |
| US5472217A (en) * | 1990-07-26 | 1995-12-05 | Taiho Kogyo Co., Ltd. | Metal gasket |
| JPH0594570U (en) * | 1992-05-26 | 1993-12-24 | 日本ガスケット株式会社 | Metal gasket |
| JPH0594569U (en) * | 1992-05-26 | 1993-12-24 | 日本ガスケット株式会社 | Metal gasket |
| JPH0667962U (en) * | 1993-01-27 | 1994-09-22 | 株式会社ケットアンドケット | Rubber coating material Metal gasket |
| JPH10253688A (en) * | 1997-03-10 | 1998-09-25 | Sony Corp | Apparatus and method for continuity inspection of flexible circuit board |
| KR100314499B1 (en) * | 1998-05-05 | 2001-11-15 | 이시카와 신이치로우 | Metal Plate Gasket |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH076577B2 (en) | 1995-01-30 |
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