JPS62224772A - Setting method for spacer located between deck faces of members to be joined and spacer forming method employing said method - Google Patents
Setting method for spacer located between deck faces of members to be joined and spacer forming method employing said methodInfo
- Publication number
- JPS62224772A JPS62224772A JP6711986A JP6711986A JPS62224772A JP S62224772 A JPS62224772 A JP S62224772A JP 6711986 A JP6711986 A JP 6711986A JP 6711986 A JP6711986 A JP 6711986A JP S62224772 A JPS62224772 A JP S62224772A
- Authority
- JP
- Japan
- Prior art keywords
- spacer
- members
- joined
- bolt tightening
- deck
- 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
- 238000000034 method Methods 0.000 title claims abstract description 43
- 125000006850 spacer group Chemical group 0.000 title claims description 110
- 239000000463 material Substances 0.000 claims abstract description 268
- 238000003825 pressing Methods 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 abstract description 34
- 239000000758 substrate Substances 0.000 description 106
- 239000002184 metal Substances 0.000 description 85
- 229910052751 metal Inorganic materials 0.000 description 85
- 238000002485 combustion reaction Methods 0.000 description 73
- 239000011324 bead Substances 0.000 description 47
- 239000000567 combustion gas Substances 0.000 description 20
- 230000000694 effects Effects 0.000 description 17
- 230000005489 elastic deformation Effects 0.000 description 15
- 239000000126 substance Substances 0.000 description 6
- 238000007751 thermal spraying Methods 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 238000007665 sagging Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000007789 gas Substances 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
- 238000005304 joining Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 239000012815 thermoplastic material Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 239000004636 vulcanized rubber Substances 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〕
この発明は被接合部材のデツキ面間に介在するスペーサ
の設定方法とこの方法を利用したスペーサの形成方法に
係り、特に被接合部材のデツキ面間に介設するスペーサ
の形状を容易に設定するとともに、デツキ面間隙に合致
するスペーサを介設し、デツキ面間隙全体を確実に補償
してシール性の向上を図り得る被接合部材のデツキ面間
に介在するスペーサの設定方法とこの方法を利用したス
ペーサの形成方法に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for setting a spacer interposed between deck surfaces of members to be joined, and a method for forming a spacer using this method, and particularly to a method for forming a spacer interposed between deck surfaces of members to be joined. A deck for members to be joined that allows the shape of the spacer to be interposed between surfaces to be easily set, and also to interpose a spacer that matches the gap between the deck surfaces, thereby reliably compensating for the entire deck surface gap and improving sealing performance. The present invention relates to a method of setting a spacer interposed between surfaces and a method of forming a spacer using this method.
内燃機関を構成するシリンダヘッドとシリンダブロック
とのデツキ面間には、燃焼ガスのリークを防止するため
に、ガスケットやスペーサを介設している。近年、ガス
ケットには、デツキ面をシールすべく形成されたビード
を有する金属ガスケットが利用されている。A gasket or a spacer is interposed between the deck surfaces of a cylinder head and a cylinder block that constitute an internal combustion engine in order to prevent combustion gas from leaking. In recent years, metal gaskets having beads formed to seal deck surfaces have been utilized.
ところで０、被接合部材であるシリンダヘッドとシリン
ダブロックとを締付用ボルトによって締付け、締結した
際に、ボルト締付部位側において締付圧が高く間隙が小
であり、一方、ボルト締付部位側から離間する箇所にお
いては締付圧が低くなり、シリンダヘッドのデツキ面と
シリンダブロックのデ・７キ面間の間隙が大となる。こ
のため、シリンダヘッドとシリンダブロックとのデツキ
面間には、間隙の差が生ずる。しかしなから、従来、ボ
ルト締付部位側と該ボルト締結部位側から離間する箇所
とにおけるデツキ面の間隙の差に応じてスペーサの形状
を設定すべき要因、即ちスペーサの幅、高さ及び密度等
を容易に設定し得なかった。By the way, when the cylinder head and cylinder block, which are the members to be joined, are tightened and fastened together using tightening bolts, the tightening pressure is high on the side where the bolts are tightened and the gap is small; The tightening pressure is lower at locations that are farther away from the sides, and the gap between the deck surface of the cylinder head and the deck surface of the cylinder block becomes larger. Therefore, a difference in gap occurs between the deck surfaces of the cylinder head and the cylinder block. However, conventionally, the spacer shape has to be set according to the difference in the gap between the deck surface between the bolt tightening part and the part separated from the bolt fastening part, that is, the width, height, and density of the spacer. etc. could not be easily set.
このため、デツキ面間隙に合致したスペーサを介設する
ことができず、燃焼ガスのリークが発生し易く、燃焼ガ
スに含有する物質がデツキ面間の接合部に堆積してシー
ル性が低下するとともに、使用時に例えば燃焼ガス圧力
や機関熱の影響で燃焼室周りのデツキ面間隙が拡縮する
ので、特に金属ガスケットの場合にはビードに交番荷重
によってへたりが生じ、使用寿命が短くなる等の不都合
がある。For this reason, it is not possible to insert a spacer that matches the gap between the deck surfaces, which tends to cause leakage of combustion gas, and substances contained in the combustion gas accumulate at the joint between the deck surfaces, reducing sealing performance. At the same time, during use, for example, the deck surface gap around the combustion chamber expands and contracts due to the influence of combustion gas pressure and engine heat, so in the case of metal gaskets in particular, the bead may become sagging due to alternating loads, resulting in a shortened service life. It's inconvenient.
そこでこの発明の目的は、上述の不都合を除去し、各被
接合部材のデツキ面間に介設するスペーサの形状を容易
に設定するとともに、デツキ面間隙に合致するスペーサ
を介設することにより、デツキ面間隙全体を確実に補償
して燃焼ガス圧力や機関熱の影響によりデツキ面間隙の
拡縮を防止し、安定したシールを果し、シール性の向上
を図り得る被接合部材のデツキ面間に介在するスペーサ
の設定方法とこの方法を利用したスペーサの形成方法を
実現するにある。Therefore, an object of the present invention is to eliminate the above-mentioned disadvantages, to easily set the shape of the spacer to be interposed between the deck surfaces of each member to be joined, and to provide a spacer that matches the gap between the deck surfaces. It is possible to securely compensate for the entire deck surface gap, prevent expansion and contraction of the deck surface gap due to the influence of combustion gas pressure and engine heat, achieve a stable seal, and improve sealing performance between the deck surfaces of the parts to be joined. The object of the present invention is to realize a method for setting an intervening spacer and a method for forming a spacer using this method.
この目的を達成するためにこの発明は、被接合部材のボ
ルト締付部位側から離間するに従い押圧変形が漸次困難
な状態に構成した素材を前記被接合部材のデツキ面間に
介設し、次にこの素材をボルト締付力によって変形させ
、スペーサの形状を設定することを特徴とする。In order to achieve this object, the present invention interposes a material between the deck surfaces of the members to be joined in such a manner that it is gradually difficult to deform under pressure as the material moves away from the bolt tightening part of the members to be joined. The feature is that this material is deformed by bolt tightening force to set the shape of the spacer.
また、被接合部材のボルト締付部位側から離間するに従
い押圧変形が漸次困難な状態に構成した素材を前記被接
合部材のデツキ面間に介設し、次にこの素材をボルト締
付力によって変形させ、この変形した素材をスペーサと
してあるいはスペーサを製作する型体として機能させる
べく形成したことを特徴とする。In addition, a material is interposed between the deck surfaces of the members to be joined, and the material is configured to be gradually difficult to deform under pressure as the distance from the bolt tightening area of the members to be joined increases, and then this material is applied by applying bolt tightening force. It is characterized in that it is deformed and the deformed material is formed so as to function as a spacer or as a mold for manufacturing a spacer.
この発明は、先ず被接合部材のデツキ面間にボルト締付
部位側から離間するに従い弾性変形が漸次困難な状態に
構成した素材を介設し、次に被接合部材を締結用ボルト
によって締付け、ボルト締付力によって素材を変形させ
る。このとき、ボルト締付部位側においては、素材が容
易に圧縮変形されその小なる間隙に合致した適正な形状
に変形される。また、ボルト締付部位側から離間する箇
所においては、素材の弾性変形が困難なので、素材がそ
の大なる間隙に合致した適正な形状に変形される。これ
により、素材を被接合部材のデツキ面間隙の差に応じて
変形させ、スペーサの形状を容易に設定することができ
る。そして、この変形した素材を被接合部材のデツキ面
間にそのままスペーサとして介設したり、あるいは被接
合部材の締付けを解除して素材を取出し、この素材をス
ペーサの型体として被接合部材のスペーサを製作する。This invention first involves interposing a material between the deck surfaces of the members to be joined in such a manner that elastic deformation becomes progressively more difficult as the distance from the bolt tightening region increases, and then the members to be joined are tightened with a fastening bolt. The material is deformed by the bolt tightening force. At this time, on the side where the bolt is tightened, the material is easily compressed and deformed into an appropriate shape that matches the small gap. Furthermore, since it is difficult for the material to be elastically deformed at a location away from the bolt tightening region, the material is deformed into an appropriate shape that matches the large gap. Thereby, the shape of the spacer can be easily set by deforming the material according to the difference in the deck surface gap of the members to be joined. Then, this deformed material is directly inserted as a spacer between the deck surfaces of the members to be joined, or the material is removed by releasing the fastening of the members to be joined, and this material is used as a mold for the spacer. Manufacture.
これにより、被接合部材のデツキ面間隙全体に合致した
スペーサを得ることができ、デツキ面間隙全体を補償し
、シール性の向上を図る。従って、スペーサの設定方法
及びスペーサの製作が極めて簡便である。As a result, it is possible to obtain a spacer that matches the entire gap between the deck surfaces of the members to be joined, thereby compensating for the entire gap between the deck surfaces and improving sealing performance. Therefore, the method of setting the spacer and the manufacturing of the spacer are extremely simple.
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１〜６図はこの発明の第１実施例を示すものである。1 to 6 show a first embodiment of the present invention.
図において、２は金属ガスケットであり、この金属ガス
ケット２は弾性金属板からなる基板４により構成されて
いる。この基板４には、シリンダ内径よりも少許大なる
内径を存する燃焼室用孔６が形成されているとともに、
この燃焼室用孔６の周辺に複数の締付用ボルトを挿通ず
るボルト用孔８が形成されている。また、前記基板４に
は、燃焼室用孔６の内縁部４ａを囲繞するとともに前記
ボルト用孔８の内側を周回する所定幅のビード１０が形
成されている。上述の如く、燃焼室用孔６の内径をシリ
ンダ内径よりも少許太き（形成することにより、金属ガ
スケット２のビード１０がボルト締付力によって圧縮変
形した際に、基ｖｉ４の燃焼室用孔６側の内縁部４ａが
後述する燃焼室２０内に突出するのを防止する。In the figure, 2 is a metal gasket, and this metal gasket 2 is constituted by a substrate 4 made of an elastic metal plate. This substrate 4 is formed with a combustion chamber hole 6 having an inner diameter slightly larger than the cylinder inner diameter, and
A bolt hole 8 is formed around the combustion chamber hole 6, into which a plurality of tightening bolts are inserted. Further, a bead 10 of a predetermined width is formed on the substrate 4 so as to surround the inner edge 4a of the combustion chamber hole 6 and go around the inside of the bolt hole 8. As mentioned above, by forming the inner diameter of the combustion chamber hole 6 to be slightly thicker than the cylinder inner diameter, when the bead 10 of the metal gasket 2 is compressively deformed by the bolt tightening force, the combustion chamber hole of base VI4 This prevents the inner edge 4a on the 6 side from protruding into the combustion chamber 20, which will be described later.
また、前記基板４の燃焼室用孔６の内縁部４ａには、ボ
ルト用孔８側から離間するに従い弾性変形が漸次困難な
状態に構成した素材１２が以下の如く設けられる。即ち
、第２図に示す如く、ボルト締付部位側であるボルト用
孔８側において、ビード１０頂部が指向する内縁部４ａ
の面には、溶射やメッキ等の付着手段によって素材１２
−１を付着する。このとき、素材１２−１を、所定高さ
Ｈで且つ内端面４ｂからの幅が最小幅Ｌ１となるように
付着する。また、第２．４図に示す如（、燃焼室２０側
に面する素材１２−１の端面には、素材１２−１の端部
のこぼれを防止し、その箇所に合致した素材の幅を確保
するために、丸みＲを形成する。この素材１２−１のこ
ぼれを防止するために例えば素材１２−１の内端面と基
板４の内端面４ｂ六・、を■−にせず、素材１２−１の
内端面を内端面’４ ｂから少許（距離Ｃ）離間するこ
とも可能である。Further, on the inner edge 4a of the combustion chamber hole 6 of the substrate 4, a material 12 is provided as described below, and the material 12 is configured so that elastic deformation becomes gradually difficult as the distance from the bolt hole 8 side increases. That is, as shown in FIG. 2, on the side of the bolt hole 8 which is the side where the bolt is tightened, the inner edge 4a toward which the top of the bead 10 is directed
The material 12 is applied to the surface by an adhesion method such as thermal spraying or plating.
-1 is attached. At this time, the material 12-1 is attached so that it has a predetermined height H and a width from the inner end surface 4b that is the minimum width L1. In addition, as shown in Fig. 2.4, the end surface of the material 12-1 facing the combustion chamber 20 is provided with a width of the material that matches that point to prevent the end of the material 12-1 from spilling. In order to ensure this, a roundness R is formed.In order to prevent the material 12-1 from spilling, for example, the inner end surface of the material 12-1 and the inner end surface 4b6 of the substrate 4 are not made ■-, and the material 12-1 is rounded. It is also possible to space the inner end surface of No. 1 by a small distance (distance C) from the inner end surface '4b.
また、第３図に示す如く、ボルト締付部位側から離間す
る箇所であるボルト用孔８．８間において、内縁部４ａ
の面には、ボルト用孔８側から離間するに従い幅が漸次
増大する素材１２−２を付着する。即ち、この素材１２
−２は、所定高さＨを有し前記素材１２−１に連設する
とともにボルト用孔８．８間の中央部位で最大幅Ｌ２に
形成される。この箇所においても、素材１２−２の端面
には、同様に、丸みＲが形成されている。前記素材１２
は、通常変形するもので、例えば加熱することによって
硬化する熱可塑性材、経時によって硬化する合成樹脂で
ある。また、素材１２−２の内端面と基板の内端面４ｂ
とを面一にせず、素材１２−２の内端面を内端面４ｂか
ら少許（距離Ｃ）離間することも可能である。従って、
素材■２は、ボルト用孔８側から離間するに従い弾性変
形が漸次困難な状態に構成される。Further, as shown in FIG. 3, between the bolt holes 8 and 8, which are located away from the bolt tightening part, the inner edge 4a
A material 12-2 whose width gradually increases as it moves away from the bolt hole 8 side is attached to the surface. That is, this material 12
-2 has a predetermined height H, is connected to the material 12-1, and is formed to have a maximum width L2 at the center between the bolt holes 8.8. At this location, a roundness R is similarly formed on the end surface of the material 12-2. Said material 12
are usually deformable, such as thermoplastic materials that harden when heated, or synthetic resins that harden over time. In addition, the inner end surface of the material 12-2 and the inner end surface 4b of the substrate
It is also possible to separate the inner end surface of the material 12-2 from the inner end surface 4b by a certain distance (distance C) instead of making them flush. Therefore,
The material (2) is constructed such that elastic deformation becomes progressively more difficult as it moves away from the bolt hole 8 side.
また、第５．６図において、１４．１６は内燃機関を構
成するシリンダヘッド、シリンダブロッりであり、この
シリンダヘッド１４とシリンダブロック１６とのデツキ
面間に形成される接合部１８に前記金属ガスケット２と
この金属ガスケット２面上に付着した素材１２とが介装
される。なお、符号２０は燃焼室、２２はピストンであ
る。Further, in Fig. 5.6, reference numeral 14.16 denotes a cylinder head and a cylinder block constituting the internal combustion engine. A gasket 2 and a material 12 attached to the surface of the metal gasket 2 are interposed. In addition, the code|symbol 20 is a combustion chamber, and 22 is a piston.
次に、この第１実施例の作用を説明する。Next, the operation of this first embodiment will be explained.
シリンダヘッド１４とシリンダブロック１６間の接合部
１８に介装された素材１２を付着した金属ガスケット２
は、ボルト締付力により圧縮され、これによりビード１
０が高さを低減して弾性変形する。このとき、第５．６
図に示す如く、ボルト用孔８側において締付圧が大きく
デツキ面間には金属ガスケット２の反発力等により比較
的小なる間隙ｓｌが生ずる。一方、ボルト用孔８．８間
において締付圧が小さくデツキ面間には前記間隙Ｓｉよ
りも大なる間隙Ｓ２が生ずる。従って、ボルト用孔８側
において、素材１２−１が大なる締付圧によって弾性変
形されるが、この素材１２−１の最小幅Ｌ１が小なので
素材１２−１の変形が容易である。また、ボルト用孔８
．８間において、素材１２−２が小なる締付圧によって
弾性変形されるが、間隙Ｓ２に対処し得るように弾性変
形が困難な状態の最大幅Ｌ２の素材１２−２が設けられ
ているので、素材１２−２が間隙Ｓ２全体に合致すべく
変形される。この結果、基板４のビード１０と内端面４
ａ間の燃焼室用孔８周りにおいて、デツキ面間隙の差に
応じて素材１２を変形させることができ、スペーサの形
状を容易に設定することが可能となる。Metal gasket 2 with material 12 attached to the joint 18 between the cylinder head 14 and cylinder block 16
is compressed by the bolt tightening force, which causes bead 1
0 reduces the height and deforms elastically. At this time, No. 5.6
As shown in the figure, the tightening pressure is large on the bolt hole 8 side, and a relatively small gap sl is created between the deck surfaces due to the repulsive force of the metal gasket 2, etc. On the other hand, the tightening pressure is small between the bolt holes 8.8, and a gap S2 larger than the gap Si is created between the deck surfaces. Therefore, on the bolt hole 8 side, the material 12-1 is elastically deformed by the large tightening pressure, but since the minimum width L1 of the material 12-1 is small, the material 12-1 is easily deformed. In addition, bolt hole 8
．． 8, the material 12-2 is elastically deformed by a small tightening pressure, but the material 12-2 with the maximum width L2, which is difficult to elastically deform, is provided so as to cope with the gap S2. , the blank 12-2 is deformed to fit the entire gap S2. As a result, the bead 10 of the substrate 4 and the inner end surface 4
The material 12 can be deformed around the combustion chamber hole 8 between the holes 8 and 8 in accordance with the difference in the deck surface gap, and the shape of the spacer can be easily set.
そして、前記素材１２をスペーサとしてそのまま使用す
る場合には、素材１２を接合部１８に介設した状態にす
る。さすれば、素材１２は、使用時の機関熱及び／また
は経時により硬化し、スペーサとして機能を果す。When the material 12 is used as it is as a spacer, the material 12 is placed in the joint portion 18. The material 12 will then harden due to engine heat and/or time during use, and will function as a spacer.
また、前記素材１２をスペーサの型体として使用する場
合には、素材１２を接合部１８に介在した状態で放置し
て置くと、素材１２が経時により硬化する。次に、締結
用ボルトの締付を解除し、シリンダへフド１４を外しデ
ツキ面間隙に合致した形状の素材１２を取外す。そして
、この変形した素材１２をスペーサの型体として機能さ
せ、デツキ面間隙に合致するスペーサを製作する。Furthermore, when the material 12 is used as a mold for a spacer, if the material 12 is left interposed in the joint portion 18, the material 12 will harden over time. Next, the tightening bolt is released, the hood 14 is removed from the cylinder, and the material 12 having a shape that matches the deck surface gap is removed. Then, this deformed material 12 is made to function as a spacer mold to produce a spacer that matches the deck surface gap.
この結果、各シリンダヘッド１４とシリンダブロック１
６とのデツキ面間隙全体に合致するスペーサを設けるこ
とができるので、デツキ面間隙全体を確実に補償し得る
。従って、燃焼ガスが接合部１８にリークするのを阻止
し、燃焼ガスに含有する物質が接合部１８に堆積するの
を回避し、シール性の低下を防止する。また、スペーサ
の製作を簡便に果し得るとともに、廉価とすることが可
能となる。更に、同幅に形成した素材を設けたものに比
し、材料量を減少し得て、廉価とすることが可能となる
。As a result, each cylinder head 14 and cylinder block 1
Since it is possible to provide a spacer that matches the entire deck surface gap with 6, it is possible to reliably compensate for the entire deck surface gap. Therefore, combustion gas is prevented from leaking to the joint 18, substances contained in the combustion gas are prevented from accumulating on the joint 18, and deterioration of sealing performance is prevented. Further, the spacer can be manufactured easily and at low cost. Furthermore, the amount of material can be reduced and the cost can be reduced compared to the case where materials are formed to have the same width.
また、素材１２を溶射によって金属ガスケット２に付着
したので、素材１２の付着作業を容易に果し得る。Further, since the material 12 is attached to the metal gasket 2 by thermal spraying, the work of attaching the material 12 can be accomplished easily.
第７〜１０図はこの発明の第２実施例を示すものである
る。以下の実施例において、上述の実施例と同一機能を
果す箇所には同一符号を付して説明する。7 to 10 show a second embodiment of the invention. In the following embodiments, parts having the same functions as those in the above-described embodiments will be described with the same reference numerals.
この第２実施例の特徴とするところは、以下の点にある
。即ち、金属ガスケット３２は、第７図に示す如く、基
板３４に燃焼室用孔３６−１．３６−２を直列に形成す
るとともに、これ等燃焼室用孔３６−１．３６−２の内
縁部３４−１ａ、３４−２ａを囲繞させて所定幅のビー
ド３８−１．３８−２を形成し、また外周縁側に複数の
ボルト用孔４０を形成して構成される。前記ビード３８
−１．３８−２頂部が指向する内縁部３４−１ａ、３４
−２ａの面には、溶射によって高さが異なる例えばニッ
ケル等の素材４２−１．４２−２を付着する。即ち、２
気筒内燃機関においては、シリンダブロックとシリンダ
ヘッドとを接合しボルト締付力によって締結した際に、
締付圧が異なって金属ガスケット３２の反発力により、
燃焼室用孔３６−１と燃焼室用孔３６−２とが近接する
箇所で最大のデツキ面間隙が生じ、また隣接するボルト
用孔４０とボルト用孔４０間において前記燃焼室用孔３
６−１．３６−２間の間隙に比し少許小なるデツキ面間
隙が生じ、更にボルト用孔４０近傍において前記燃焼室
用孔３６−１．３６−２間のデツキ面間隙の略半分のデ
ツキ面間隙が生ずるものである。そこで、この異なるデ
ツキ面間隙を補償するために、第８図に示す如く、内縁
部３４−１ａ、３４−２ａの面には、燃焼室用孔３６−
１．３６−２間において最大の高さＨｌ、例えば１００
μｍの素材４２−１ａ、４２−２ａを付着する。この素
材４２−１ａの高さＨｌは、デツキ面間の間隙に圧縮変
形する所定高さを加えたものである。また、内縁部３４
−１ａの面には、第９図に示す如く、ボルト用孔４０．
４０間において上述の高さＨｌに比し少許低い高さＨ２
、例えば８０μｍの素材４２−１ｂを付着する。同様に
、内縁部３４−２ａの外面には、高さＨ２の素材４２−
２ ｂを付着する（図示せず）。更に、内縁部３４−１
２の面には、第１０図に示す如く、ボルト用孔４０近傍
において前記高さＨｌの略半分の高さＨ３、例えば５０
μｍの素材４２−１ｃを付着する。同様に、内縁部３４
−２３の外面には、高さＨ３の素材４２−２ｃを付着す
る（図示せず）。This second embodiment is characterized by the following points. That is, as shown in FIG. 7, the metal gasket 32 has combustion chamber holes 36-1, 36-2 formed in series in the substrate 34, and the inner edges of these combustion chamber holes 36-1, 36-2. Beads 38-1 and 38-2 of a predetermined width are formed by surrounding the portions 34-1a and 34-2a, and a plurality of bolt holes 40 are formed on the outer peripheral edge side. The bead 38
-1.38-2 Inner edge portions 34-1a, 34 where the top is oriented
Materials 42-1 and 42-2, such as nickel, having different heights are attached to the surface -2a by thermal spraying. That is, 2
In a cylinder internal combustion engine, when the cylinder block and cylinder head are joined and fastened by bolt tightening force,
Due to the different tightening pressures and the repulsive force of the metal gasket 32,
The maximum deck surface gap occurs at a location where the combustion chamber hole 36-1 and the combustion chamber hole 36-2 are close to each other, and between the adjacent bolt hole 40, the combustion chamber hole 3
A deck surface gap that is slightly smaller than the gap between the combustion chamber holes 36-1 and 36-2 is created, and approximately half of the deck surface gap between the combustion chamber holes 36-1 and 36-2 is created in the vicinity of the bolt holes 40. This creates a gap between the deck surfaces. Therefore, in order to compensate for this different deck surface gap, as shown in FIG.
Maximum height Hl between 1.36-2, e.g. 100
μm materials 42-1a and 42-2a are attached. The height Hl of this material 42-1a is the sum of the gap between the deck surfaces and a predetermined height for compressive deformation. In addition, the inner edge portion 34
-1a has bolt holes 40. as shown in FIG.
40, the height H2 is slightly lower than the above-mentioned height Hl.
For example, a material 42-1b having a thickness of 80 μm is attached. Similarly, on the outer surface of the inner edge portion 34-2a, a material 42-
2b (not shown). Furthermore, the inner edge portion 34-1
As shown in FIG.
A μm material 42-1c is attached. Similarly, the inner edge 34
A material 42-2c having a height of H3 is attached to the outer surface of -23 (not shown).
これにより、内縁部３４−１ａ、３４−２ａには、燃焼
室用孔３６−１．３６−２周りの異なる間隙に合致した
素材４２−Ｌ ４２−２が付着される。As a result, the materials 42-L 42-2 that match the different gaps around the combustion chamber holes 36-1 and 36-2 are attached to the inner edges 34-1a and 34-2a.
従って、燃焼室用孔３６−１．３６−２間の素材４２−
１ａ、４２−２ａが最も弾性変形を困難とし、またボル
ト用孔４０．４０間の素材４２−１ｂ、４２−２ｂが燃
焼室用孔３６−１．３６−２間のものに比し少許弾性変
形を容易とし、更にボルト用孔４０近傍の素材４２−１
ｃ、４２−２ｃが上述の素材に比し最も弾性変形を容易
とするものである。Therefore, the material 42- between the combustion chamber holes 36-1 and 36-2.
1a and 42-2a are the most difficult to elastically deform, and the materials 42-1b and 42-2b between the bolt holes 40 and 40 have less elasticity than those between the combustion chamber holes 36-1 and 36-2. The material 42-1 near the bolt hole 40 can be easily deformed.
c and 42-2c are the ones that are most easily elastically deformable compared to the above-mentioned materials.
この第２実施例の構成によれば、気筒が直列に設けられ
た２気筒内燃機関の金属ガスケット３２においても、隣
接する燃焼室間のデツキ面間隙、ボルト用孔４０側から
離間する箇所のデツキ面間隙、そしてボルト用孔４０近
傍のデツキ面間隙の全てを補償するスペーサを形成する
ことができ、燃焼室周りのデツキ面間隙の拡縮を回避し
てビード３８−１．３８−２にへたりが生ずるのを防止
し、シール性を担保して使用寿命を長くし得る。According to the configuration of the second embodiment, even in the metal gasket 32 of a two-cylinder internal combustion engine in which the cylinders are arranged in series, the deck surface gap between adjacent combustion chambers and the deck surface at a location separated from the bolt hole 40 side can be reduced. It is possible to form a spacer that compensates for both the surface gap and the deck surface gap near the bolt hole 40, and avoids the expansion and contraction of the deck surface gap around the combustion chamber and settles into the bead 38-1.38-2. This prevents this from occurring, ensures sealing performance, and extends the service life.
また、直列に設けられた多気筒の内燃機関のものでも、
同様にデツキ面間隙に合致したスペーサを形成し得る。In addition, even with multi-cylinder internal combustion engines installed in series,
Similarly, spacers can be formed that match the deck surface gaps.
第１１〜１３図はこの発明の第３実施例を示すものであ
る。11 to 13 show a third embodiment of the present invention.
この第３実施例の特徴とするところは、以下の点にある
。即ち、上述の第２実施例の金属ガスケット３２は一枚
の基板３４で構成されたものであるが、この第３実施例
の金属ガスケット５２は中間板５４と第１基板５６と第
２基板５８とによって構成される。つまり、金属ガスケ
ット５２は、中間板５４の両面に第１、第２基板５６．
５８を積層するとともに、第１基板５６の第１ビード６
０−１．６０−２の頂部及び第２基板５８の第２ビード
６２−１．６２−２の頂部を中間板５４に当接させず突
設し、その対向面に対し第１、第２基板５６．５８を対
称形状に配設している。また、上述の第２実施例の第８
図と同じ断面である第１１図に示す如く、中間板５４の
内縁部５４−１ａ、５４−２ａの一面に重合する第１基
板５６の内縁部５６−１ａ、５６−２ａの外面に最大の
高さＨｌの第１素材６４−１ａ、６４−２ａを付着する
とともに、前記中間板５４の内縁部５４−１ａ、５４−
２ａの他面に重合する第２基板５８の内縁部５８−１ａ
、５８−２ａの外面には同様に高さＨｌの第２素材６６
−１ａ、６６−２ａを付着する。また、上述の第２実施
例の第９図と同じ断面である第１２図に示す如く、ボル
ト用孔４０．４０間において、第１基板５６の内縁部５
６−１ａの外面に前記高さＨｌより少許低い高さＨ２の
第１素材６４−１ ｂを付着するとともに、第２基板５
８の内縁部５８−１ａの外面には同様に高さＨ２の第２
素材６６−１ｂを付着する。また、図示しないが第１基
板５６の内縁部５６−２３の外面に高さＨ２の第１素材
６４−２ ｂを付着するとともに、第２基板５８の内縁
部５Ｂ−２ａの外面にも高さＨ２の第２素材６６−２ｂ
を付着する。更に、上述の第２実施例の第１０図と同じ
断面である第１３図に示す如く、ボルト用孔４゜近傍に
おいて、第１基板５６の内縁部５６−１ａの外面に前記
高さＨｌの略半分の高さＨ３の第１素材６４−１ｃを付
着するとともに、第２基板５８の内縁部５８−１ａの外
面には同様に高さＨ３の第２素材６６−ＩＣを付着する
。また、図示しないが第１基板５６の内端部５６−２ａ
の外面に高さＨ３の第１素材６４−２ｃを付着するとと
もに、第２基板５８の内縁部５８−２ａの外面にも高さ
Ｈ３の第２素材６６−２ｃを付着する。なお、中間板５
４と第１基板５６と第２基板５８とを一体的に結合する
場合には、ボルト用孔４０に筒状の止め具（図示せず）
を挿入するとともに止め具の両端部を第１、第２基板５
６．５８面上に折曲げてかしめを施したり、あるいは中
間板５４、第１基板５６、第２基板５８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
トで行う。This third embodiment is characterized by the following points. That is, while the metal gasket 32 of the second embodiment described above is composed of a single substrate 34, the metal gasket 52 of this third embodiment is composed of an intermediate plate 54, a first substrate 56, and a second substrate 58. It is composed of That is, the metal gasket 52 is placed on both sides of the intermediate plate 54 on the first and second substrates 56 .
58 and the first bead 6 of the first substrate 56.
The top of the second bead 62-1.60-2 and the top of the second bead 62-1.62-2 of the second substrate 58 are provided in a protruding manner without contacting the intermediate plate 54, and the first and second beads 62-1. Substrates 56, 58 are arranged symmetrically. In addition, the eighth example of the second embodiment described above
As shown in FIG. 11, which is the same cross section as the figure, the maximum The first materials 64-1a, 64-2a having a height Hl are attached, and the inner edge portions 54-1a, 54-2 of the intermediate plate 54 are attached.
The inner edge portion 58-1a of the second substrate 58 overlaps the other surface of the second substrate 2a.
, 58-2a is similarly provided with a second material 66 having a height Hl.
-1a and 66-2a are attached. Further, as shown in FIG. 12, which is the same cross section as FIG. 9 of the second embodiment, the inner edge 5 of the first substrate 56 is located between the bolt holes 40 and 40.
A first material 64-1b having a height H2 slightly lower than the height Hl is attached to the outer surface of the second substrate 6-1a, and the second substrate 5
Similarly, on the outer surface of the inner edge portion 58-1a of No. 8, there is a second
The material 66-1b is attached. Although not shown, the first material 64-2b with a height H2 is attached to the outer surface of the inner edge 56-23 of the first substrate 56, and the outer surface of the inner edge 5B-2a of the second substrate 58 is also attached with a height H2. H2 second material 66-2b
Attach. Further, as shown in FIG. 13, which is the same cross section as FIG. 10 of the second embodiment, a height Hl is formed on the outer surface of the inner edge 56-1a of the first substrate 56 in the vicinity of the bolt hole 4°. A first material 64-1c having approximately half the height H3 is attached, and a second material 66-IC having a height H3 is similarly attached to the outer surface of the inner edge 58-1a of the second substrate 58. Although not shown, the inner end 56-2a of the first substrate 56
A first material 64-2c with a height H3 is attached to the outer surface of the second substrate 58, and a second material 66-2c with a height H3 is also attached to the outer surface of the inner edge 58-2a of the second substrate 58. In addition, the intermediate plate 5
4, the first substrate 56, and the second substrate 58, a cylindrical stopper (not shown) is inserted into the bolt hole 40.
while inserting both ends of the stopper into the first and second substrates 5.
6. By bending and caulking on the 58th surface, or by making a portion of the intermediate plate 54, first substrate 56, and second substrate 58 protrude, these protruding parts are spot welded or riveted. .
この第３実施例の構成によれば、上述の第２実施例と同
効を得るとともに、ビードの復元量及び復元力を増加さ
せ、シール面圧を高くすることができ、また追従性を有
さしめでシール効果を更に向上することが可能となる。According to the configuration of the third embodiment, it is possible to obtain the same effect as the above-mentioned second embodiment, increase the restoring amount and restoring force of the bead, increase the sealing surface pressure, and have followability. It becomes possible to further improve the sealing effect by tightening.
第１４〜１６図はこの発明の第４実施例を示すものであ
る。14 to 16 show a fourth embodiment of the present invention.
この第４実施例の特徴とするところは、以下の点にある
。即ち、金属ガスケット７２は、中間板７４の両面に第
１、第２基板７６．７８を積層するとともに、第１基板
７６の第１ビード８０−１．８０−２の頂部及び第２基
Ｆｉ７８の第２ビード８２−１．８２−２の頂部を中間
板７４に当接させその対向面に対し第１、第２基板７６
．７８を対称形状に配設している。また、上述の第２実
施例の第８図と同じ断面である第１４図に示す如く、中
間板７４の第１基板７６側の内縁部７４−１ａ、７４−
２３の面に最大の高さＨｌの第１素材８４−１ａ、８４
−２ａを付着するとともに、前記中間板７４の第２基Ｆ
ｉ、７８側の内縁部？ ４−１２、？４−２ａの面には
同様に高さＨｌの第２素材８６−１ａ、８６−２２を付
着する。また、上述の第２実施例の第９図と同じ断面で
ある第１５図に示す如く、ボルト用孔４０．４０間にお
いて、中間板７４の第１基板７６側の内縁部７４−１２
の面に前記高さＨｌより少許低い高さＨ２の第１素材８
４−１ｂを付着するとともに、中間板７４の第２基板７
８側の内縁部７４−１３の面には同様に高さＨ２の第２
素材８６−１ｂを付着する。This fourth embodiment is characterized by the following points. That is, the metal gasket 72 has the first and second substrates 76, 78 laminated on both sides of the intermediate plate 74, and the tops of the first beads 80-1, 80-2 of the first substrate 76 and the second base Fi 78. The top of the second bead 82-1, 82-2 is brought into contact with the intermediate plate 74, and the first and second substrates 76
．． 78 are arranged symmetrically. Further, as shown in FIG. 14, which is the same cross section as FIG. 8 of the second embodiment, inner edge portions 74-1a, 74- of the intermediate plate 74 on the first substrate 76 side
The first material 84-1a, 84 with the maximum height Hl on the surface of 23
-2a and the second group F of the intermediate plate 74.
i, the inner edge on the 78 side? 4-12,? Similarly, second materials 86-1a and 86-22 having a height Hl are attached to the surface 4-2a. Further, as shown in FIG. 15, which is the same cross section as FIG. 9 of the second embodiment, between the bolt holes 40 and 40, the inner edge 74-12 of the intermediate plate 74 on the first substrate 76 side
A first material 8 having a height H2 slightly lower than the height Hl is placed on the surface of
4-1b and the second substrate 7 of the intermediate plate 74.
Similarly, on the surface of the inner edge portion 74-13 on the 8 side, there is a second plate having a height H2.
The material 86-1b is attached.
また、図示しないが中間板７４の第１基板７６側の内縁
部７４−２ａの面に高さＨ２の第１素材８４−２ ｂを
付着するとともに、中間ｕｉ７４の第２基板７８側の内
縁部７４−２ａの面にも高さＨ２の第２素材８６−２ｂ
を付着する。更に、上述の第２実施例の第１０図と同じ
断面である第１６図に示す如く、ボルト用孔４０近傍に
おいて、中間板７４の第１基板７６側の内縁部７４−１
ａの面に前記高さＨｌの略半分の高さＨ３の第１素材８
４−１ｃを付着するとともに、中間板７４の第２基板７
８側の内縁部７４−１２の面には同様に高さＨ３の第２
素材８６−ＩＣを付着する。また、図示しないが中間板
７４の第１基板７６側の内縁部７４〜２ａの外面に高さ
Ｈ３の第１素材８４−２ｃを付着するとともに、中間板
７４の第２基板７８側の内縁部７４−２ａの外面にも高
さＨ３の第２素材８６−２ｃを付着する。なお、中間板
７４と第１基板７６と第２基板７８とを一体的に結合す
る場合には、ボルト用孔４０に筒状の止め具（図示せず
）を挿入するとともに止め具の両端部を第１、第２基板
７６．７８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で行う。Although not shown, a first material 84-2b having a height of H2 is attached to the surface of the inner edge 74-2a of the intermediate plate 74 on the first substrate 76 side, and the inner edge of the intermediate UI 74 on the second substrate 78 side is attached. A second material 86-2b with a height of H2 is also on the surface of 74-2a.
Attach. Furthermore, as shown in FIG. 16, which is the same cross section as FIG. 10 of the second embodiment, in the vicinity of the bolt hole 40, the inner edge 74-1 of the intermediate plate 74 on the first substrate 76 side
A first material 8 having a height H3 approximately half of the height Hl is placed on the surface a.
4-1c and the second substrate 7 of the intermediate plate 74.
Similarly, on the surface of the inner edge portion 74-12 on the 8 side, there is a second plate having a height H3.
Attach material 86-IC. Although not shown, a first material 84-2c having a height of H3 is attached to the outer surface of the inner edge portions 74-2a of the intermediate plate 74 on the first substrate 76 side, and the inner edge portion of the intermediate plate 74 on the second substrate 78 side. A second material 86-2c having a height of H3 is also attached to the outer surface of 74-2a. Note that when the intermediate plate 74, the first substrate 76, and the second substrate 78 are integrally coupled, a cylindrical stopper (not shown) is inserted into the bolt hole 40, and both ends of the stopper are inserted. are formed by protruding parts of the first and second substrates 76 and 78, and these protruding parts are spot welded or riveted.
この第４実施例の構成によれば、上述の第２実施例と同
効を得るとともに、ビードの復元量及び復元力を増加さ
せ、シール面圧を高くすることができ、また追従生を有
さしめでシール効果を更に向上し得る。また、第１、第
２素材８４．８６が中間板７４、第１、第２基板７６．
７８によって挾持されるので、第１、第２素材８４．８
６がシリンダヘッドのデツキ面やシリンダブロックのデ
ツキ面に直接に接することがない。また、第１、第２素
材８４．８６が中間Ｆｉ７４と第１、第２基板７６．７
８とによって形成される空間内で圧縮変形されるので、
素材が徒にフローすることがな。According to the configuration of the fourth embodiment, it is possible to obtain the same effect as the above-mentioned second embodiment, increase the restoring amount and restoring force of the bead, increase the sealing surface pressure, and have a follow-up effect. The sealing effect can be further improved by tightening. Further, the first and second materials 84, 86 are the intermediate plate 74, the first and second substrates 76, .
78, so the first and second materials 84.8
6 does not come into direct contact with the deck surface of the cylinder head or the deck surface of the cylinder block. In addition, the first and second materials 84.86 are the intermediate Fi 74 and the first and second substrates 76.7.
Since it is compressed and deformed within the space formed by 8,
Materials do not flow unnecessarily.
い。この結果、素材のこぼれ等の不都合を確実に防止す
ることが可能となる。stomach. As a result, it is possible to reliably prevent inconveniences such as material spillage.
なお、この考案は上述の実施例に限定されず、種々応用
改変が可能であることは勿論である。It should be noted that this invention is not limited to the above-mentioned embodiments, and of course can be modified in various ways.
例えば、ボルト締付部位側から離間するに従い弾性変形
が漸次困難となるように、同幅に形成した素材の密度を
ボルト締付部位側で小にするとともにボルト締付部位側
から離間するに従い大に変化させる。これにより、素材
の形成を容易にするとともに、ボルト締付部位側から離
間する箇所において素材の強さを向上し、大なる間隙Ｓ
２に合致するスペーサを形成し得る。For example, in order to make elastic deformation progressively more difficult as the distance from the bolt tightening area increases, the density of a material formed with the same width is made smaller on the bolt tightening area, and increases as the distance from the bolt tightening area increases. change to This not only makes it easier to form the material, but also improves the strength of the material in areas that are away from the bolt tightening area, creating a large gap S.
A spacer matching 2 can be formed.
また、ボルト締付部位側から離間するに従い弾性変形が
漸次困難となるように、同幅に形成した素材の硬度をボ
ルト締付部位側で小にするとともに、ボルト締付部位側
から離間するに従い大とする。これにより、ボルト締付
部位側で圧縮変形量を多くし、ボルト締付部位側から離
間するに従い圧縮変形量を少なくして、素材の接合面に
対する密着性を良好とし得る。In addition, in order to make elastic deformation progressively more difficult as the distance from the bolt tightening area increases, the hardness of the material formed with the same width is reduced on the bolt tightening area, and as the distance from the bolt tightening area increases, Make it large. Thereby, the amount of compressive deformation is increased on the bolt tightening site side, and the amount of compressive deformation is decreased as the distance from the bolt tightening site side increases, thereby making it possible to improve the adhesion of the material to the joining surface.
更に、ボルト締付部位側から離間するに従い弾性変形が
漸次困難となるように、素材の材質、例えばボルト締付
力により発生する応力がボルト締付部位側で小さくなる
とともにボルト締付部位側から離間するに従い漸次大き
く変化するように素材を形成する。これにより、ボルト
締付力が作用した際に、素材の変形量をボルト締付部位
側で大にするとともにボルト締付部位側から離間するに
従い小とすることが可能で、素材を容易に変形し得る。Furthermore, so that elastic deformation becomes progressively more difficult as the distance from the bolt tightening area increases, the material quality of the material, for example, the stress generated by the bolt tightening force, decreases on the bolt tightening area and increases from the bolt tightening area. The material is formed so that it changes gradually as the distance increases. As a result, when bolt tightening force is applied, the amount of deformation of the material can be increased on the bolt tightening part side and become smaller as it moves away from the bolt tightening part, making it possible to easily deform the material. It is possible.
また、単気筒や２気筒内燃機関のスペーサの製作に限定
せず、多気筒内燃機関用のスペーサを製作することも可
能である。Furthermore, the present invention is not limited to manufacturing spacers for single-cylinder or two-cylinder internal combustion engines, and it is also possible to manufacture spacers for multi-cylinder internal combustion engines.
以上詳細な説明から明らかなようにこの発明によれば、
被接合部材のボルト締付部位側から離間するに従い弾性
変形が漸次困難な状態に構成した素材を被接合部材のデ
ツキ面間に介設することにより、デツキ面間隙に応じて
素材を容易に変形させる。そして、変形した素材をその
ままスペーサとしてデツキ面間に介設したり、あるいは
被接合部材の締結を解除して素材を取出し、素材をスペ
ーサの型体として被接合部材のスペーサを製作する。こ
れにより、被接合部材のデツキ面間隙全体に合致するス
ペーサを設けることができ、デツキ面間隙全体を確実に
補償し、燃焼ガス圧力や機関熱の影響によりデツキ面間
隙の拡縮を防止し得て、安定したシールを果し、シール
性の向上を図り得る。従って、燃焼ガスが接合部にリー
クするのを防止し得るので、接合部の汚損を回避すると
ともに、燃焼ガスに含有する物質の堆積をも回避し、シ
ール性の低下を防止することが可能となり、シール効果
を大とし得る。As is clear from the above detailed description, according to the present invention,
By interposing a material between the deck surfaces of the welded parts that makes elastic deformation progressively more difficult as the distance from the bolt tightening area of the welded parts increases, the material can be easily deformed according to the gap between the deck surfaces. let Then, the deformed material is used as a spacer and is interposed between the deck surfaces, or the members to be joined are unfastened and the material is taken out, and the material is used as a spacer mold to produce a spacer for the members to be joined. As a result, it is possible to provide a spacer that matches the entire deck surface gap of the members to be joined, reliably compensate for the entire deck surface gap, and prevent the deck surface gap from expanding or contracting due to the influence of combustion gas pressure or engine heat. , it is possible to achieve stable sealing and improve sealing performance. Therefore, it is possible to prevent combustion gas from leaking into the joint, thereby avoiding contamination of the joint, and also avoiding the accumulation of substances contained in the combustion gas, thereby preventing deterioration in sealing performance. , the sealing effect can be increased.
また、スペーサの設定方法及びスペーサの製作が掻めて
簡便である。Further, the method of setting the spacer and the manufacturing of the spacer are easy and simple.
更に、ビードを形成した金属ガスケットにデツキ面間の
間隙に合致するスペーサを重合させて被接合部材のデツ
キ面間に介在した場合には、燃焼室周りの大なるデツキ
面間隙を確実に補償するとともに、交番荷重によってビ
ードにへたりが生じるのを防止し、シール性を担保して
使用寿命を長くし得る。Furthermore, if a spacer that matches the gap between the deck surfaces of the members to be joined is placed between the deck surfaces of the members to be joined by superimposing a spacer that matches the gap between the deck surfaces on a metal gasket in which a bead is formed, the large gap between the deck surfaces around the combustion chamber can be reliably compensated for. At the same time, it is possible to prevent the bead from sagging due to alternating loads, ensure sealing performance, and extend the service life.
第１〜６図はこの発明の実施例を示すもので、第１図は
素材を付着した金属ガスケットの平面図、第２図は第１
図のｎ−ｎ線による要部拡大断面図、第３図は第１図の
ｍ−ｍ線による要部拡大断面図、第４図は第２図の要部
拡大図、第５．６図は接合部に素材を付着した金属ガス
ケットを介装し締付けた状態の一部省略した要部断面図
である。
第７〜１０図はこの発明の第２実施例を示すもので、第
７図は素材を付着した２気筒内燃機関用の金属ガスケッ
トの平面図、第８図は第７図の■−■線による金属ガス
ケットの拡大断面図、第９図は第７図のＩＸ−ＩＸ ｌ
による金属ガスケットの拡大断面図、第１０図は第７図
のｘ −ｘ ｖＡによる金属ガスケットの拡大断面図で
ある。
第１Ｉ〜１３図はこの発明の第３実施例を示すもので、
第１１図は隣接する燃焼室用孔間の金属ガスケットの拡
大断面図、第１２図はボルト用孔間の金属ガスケットの
拡大断面図、第１３図はボルト用孔近傍の金属ガスケッ
トの拡大断面図である。
第１４〜１６図はこの発明の第４実施例を示すもので、
第１４図は隣接する燃焼室用孔間の金属ガスケットの拡
大断面図、第１５図はボルト用孔間の金属ガスケットの
拡大断面図、第１６図はボルト用孔近傍の金属ガスケッ
トの拡大断面図である。
図において、２は金属ガスケット、４は基板、６は燃焼
室用孔、８はボルト用孔、１０はビード、１２は素材、
１４はシリンダヘッド、１６はシリンダブロック、１８
は接合部、そして２０は燃焼室である。
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
Ｏ
第６図
手続主甫正書（方式）
昭和６１年 ４月２１日
特許庁長官 宇 賀 道 部 殿
１、事件の表示
昭和６１年特許願第０６７１１９号
２、発明の名称
被接合部材のデツキ面間に介在するスペーサの設定方法
とこの方法を利用したスペーサの形成方法３、補正をす
る者
事件との関係 特許出願人
住 所 埼玉県熊谷市大字三ケ尻字出ロ３３０８名
称 日本メタルガスケット株式会社代表者植田耕作
４、代 理 人 〒１０５ ７ＥＬ ０３−４３８−
２２４１ （代表）住 所 東京都港区虎ノ門３丁
目４番１７号６、補正の対象
７、補正の内容
特許庁長官 黒 １）明 雄 殿
１、事件の表示
特願昭６１−６７１１９号
２、発明の名称
被接合部材のデツキ面間で押圧変形によって形成される
スペーサを有するｆｌガスケット３、補正をする者
事件との関係 特許出願人
住 所 埼玉県熊谷市大字三ケ尻字出、ｐ３３０８名
称 日本メタルガスケット株式会社代表者植田耕
作
４、代 理 人 〒１０５ ７ＥＬ ０３−４３８−
２２４１ （代表）住 所 東京都港区虎ノ門３丁
目４番１７号６、補正の対象
全文訂正明細書
＋１、発明の名称を「被接合部材のデツキ面間で押圧変
形によって形成されるスペーサを有する金属ガスケット
」に補正する。
（２）、別紙のとおり
□□−下
１、発明の名称
被接合部材のデツキ面間で押圧変形によって形成される
スペーサを有する金属ガスケット２、特許請求の範囲
全班長被接合部材のボルト締付部位側から離間するに従
い押圧変形が漸次困難な状態に構成した素材を面舵被接
合部材のデツキ面間に介設し、次に゛この素材をボルト
締付力によって変形させて設定することを特徴とする被
接合部材のデツキ面間エルト締付部位側から離間するに
従い押圧変形が漸次困難な状態に構成した素材を前記被
接合部材のデツキ面間隙介設し、次にこの素材をボルト
締付力によって変形させ、この変形した素材をＦｍ ｇ
８スペーサとしてあるいは銭スペーサを製作する型体と
して機能させるべく形成したことを特徴とする被接合部
材のデツキ面間で押圧・形によって形ｒ”されるスペー
サを する金７ガスケノト。
３、前記素材は、前記ボルト締付部位側から離間するに
従い押圧変形が漸次困難な状態になるべく前記ボルト締
付部位側から離間するに従い幅が漸次大きく形成された
素材である特許請求の範囲第１項ＩＬ第２項に記載の被
接合部材のデツキ面４、前記素材は、前記ボルト締付部
位側から離間するに従い押圧変形が漸次困難な状態にな
るべく前記ボルト締付部位側から離間するに従い高さが
漸次大きく形成された素材である特許請求の範囲第１項
ス見第２項に記載の被接合部材のデツキ面間で１圧゛〉
によって幻されるスペーサを一工擾１１賢７」ニーし−
５、前記素材は、前記ボルト締付部位側から離間するに
従い押圧変形が漸次困難な状態になるべく前記ボルト締
付部位側から離間するに従い密度が漸次大に変化した素
材である特許請求の範囲第１項ス見第２項に記載の被接
合部材のデツキ面間６、前記素材は、前記ボルト締付部
位側から離間するに従い押圧変形が漸次困難な状態にな
るべく前記ボルト締付部位側から離間するに従い硬度が
漸次大に変化した素材である特許請求の範囲第１項Ｕ第
２項に記載の被接合部材のデツキ面間７、前記素材は、
前記ボルト締付部位側から離間するに従い押圧変形が漸
次困難な状態になるべく前記ボルト締付部位側から離間
するに従い材質が漸次変化する素材である特許請求の範
囲第１項１！第２項に記載の被接合部材のデツキ面間■
圧・ノによってｆｕされるスペーサを油する金ガスケッ
ト。
３、発明の詳細な説明
〔産業上の利用分野〕
この発明は被接合部材のデツキ面間で押圧変形によって
形成されるスペーサを有する金属ガスケットに係り、特
に被接合部材のデツキ面間に介設する金属ガスケットの
スペーサの形状を容易に設定するとともに、デツキ面間
隙に合致する金属ガスケットのスペーサを介設し、デツ
キ面間隙全体を確実に補償してシール性の向上を図り得
る被接合部材のデツキ面間で押圧変形によって形成され
るスペーサを有する金属ガスケットに関する。
〔従来の技術〕
内燃機関を構成するシリンダヘッドとシリンダブロック
とのデツキ面間には、燃焼ガスのリークを防止するため
に、ガスケットやスペーサを介設している。近年、ガス
ケットには、デツキ面をシールすべく形成されたビード
を有する金属ガスケットが利用されている。
〔発明が解決しようとする問題点〕
ところで、被接合部材であるシリンダヘッドとシリンダ
ブロックとを締付用ボルトによって締付け、締結した際
に、ボルト締付部位側において締付圧が高く間隙が小で
あり、一方、ボルト締付部位側から離間する箇所におい
ては締付圧が低くなり、シリンダヘッドのデツキ面とシ
リンダブロックのデツキ面間の間隙が大となる。このた
め、シリンダヘッドとシリンダブロックとのデツキ面間
には、間隙の差が生ずる。しかしなから、従来、ボルト
締付部位側と該ボルト締結部位側から離間する箇所とに
おけるデツキ面の間隙の差に応じてスペーサの形状を設
定すべき要因、即ちスペーサの幅、高さ及び密度等を容
易に設定し得なかった。
このため、デツキ面間隙に合致したスペーサを介設する
ことができず、燃焼ガスのリークが発生し易く、燃焼ガ
スに含有する物質がデツキ面間の接合部に堆積してシー
ル性が低下するとともに、使用時に例えば燃焼ガス圧力
や機関熱の影♂で燃焼室周りのデツキ面間隙が拡縮する
ので、特に金属ガスケットの場合にはビードに交番荷重
によってへたりが生じ、使用寿命が短くなる等の不都合
がある。
〔発明の目的〕
そこでこの発明の目的は、上述の不都合を除去すべく、
各被接合部材のデツキ面間に介設する金属ガスケットの
スペーサの形状を容易に設定するとともに、デツキ面間
隙に合致する金属ガスケットのスペーサを介設すること
により、デツキ面間隙全体を確実に補償して燃焼ガス圧
力や機関熱の影響によりデツキ面間隙の拡縮を防止し、
安定したシールを果し、シール性の向上を図り得る被接
合部材のデツキ面間で押圧変形によって形成されるスペ
ーサを有する金属ガスケットを実現するにある。
〔問題点を解決するための手段〕
この目的を達成するためにこの発明は、弾性金属板にビ
ードを形成した基板面と被接合部材のデツキ面間に介在
するスペーサを有する金属ガスケツＩ・において、前記
スペーサの形状を前記被接合部材のボルト締付部位側か
ら離間するに従い押圧変形が漸次困難な状態に構成した
素材を前記被接合部材のデツキ面間に介設し、次にこの
素材をポルト締付力によって変形させて設定することを
特徴とする。
また、弾性金属板にビードを形成した基板面と被接合部
材のデツキ面間に介在するスペーサを有する金属ガスケ
ットにおいて、前記被接合部材のボルト締付部位側から
離間するに従い押圧変形が漸次困難な状態に構成した素
材を前記被接合部材のデツキ面間に介設し、次にこの素
材をポルト締付力によって変形させ、この変形した素材
を前記スペーサとしてあるいは前記スペーサを製作する
型体として機能させるべく形成したことを特徴とする。
〔作用〕
この発明は、先ず被接合部材のデツキ面間にボルト締付
部位側から離間するに従い弾性変形が漸次困難な状態に
構成した素材を金属ガスケットの基板面に設け、次に被
接合部材を締結用ボルトによって締付け、ボルト締付力
によって素材を変形させる。このとき、ボルト締付部位
側においては、素材が容易に圧縮変形されその小なる間
隙に合致した適正な形状に変形される。また、ボルト締
付部位側から離間する箇所においては、素材の弾性変形
が困難なので、素材がその大なる間隙に合致した適正な
形状に変形される。これにより、素材を被接合部材のデ
ツキ面間隙の差に応じて変形させ、金属ガスケットのス
ペーサの形状を容易に設定することができる。そして、
この変形した素材を被接合部材のデツキ面間にそのまま
スペーサとして介設したり、あるいは被接合部材の締付
けを解除して素材を取出し、この素材をスペーサの型体
として被接合部材のスペーサを製作する。これにより、
被接合部材のデツキ面間隙全体に合致した金属ガスゲッ
トのスペーサを得ることができ、デツキ面間隙全体を補
償し、シール性の向上を図る。従って、金属ガスゲット
に設けるスペーサの設定方法及び製作が極めて簡便であ
る。
〔発明の実施例〕
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。
第１〜６図はこの発明の第１実施例を示すものである。
図において、２は金属ガスケットであり、この金属ガス
ケット２は弾性金属板からなる基板４により構成されて
いる。この基板４には、シリンダ内径よりも少許大なる
内径を有する燃焼室用孔６が形成されているとともに、
この燃焼室用孔６の周辺に複数の締付用ボルトを挿通ず
るボルト用孔８が形成されている。また、前記基板４に
は、燃焼室用孔６の内縁部４ａを囲繞するとともに前記
ボルト用孔８の内側を周回する所定幅のビード１０が形
成されている。上述の如く、燃焼室用孔６の内径をシリ
ンダ内径よりも少許大きく形成することにより、金属ガ
スケット２のビード１０がポルト締付力によって圧縮変
形した際に、基板４の燃焼室用孔６側の内縁部４ａが後
述する燃焼室２０内に突出するのを防止する。
また、前記基板４の燃焼室用孔６の内縁部４ａには、ボ
ルト用孔８側から離間するに従い弾性変形が漸次困難な
状態に構成した素材１２が以下の如く設けられる。即ち
、第２図に示す如く、ボルト締付部位側であるボルト用
孔８側において、ビード１０頂部が指向する内縁部４ａ
の面には、溶射やメッキ等の付着手段によって素材１２
−１を付着する。このとき、素材１２−１を、所定高さ
Ｈで且つ内端面４ｂからの幅が最小幅Ｌ１となるように
付着する。また、第２．４図に示す如く、燃焼室２０側
に面する素材１２−１の端面には、素材１２−１の端部
のこぼれを防止し、ぞの箇所に合致した素材の幅を確保
するために、丸みＲを形成する。この素材１２−１のこ
ぼれを防止するために例えば素材１２−１の内端面と基
板４の内端面４ｂとを面一にせず、素材１２−１の内端
面を内端面４ｂから少許（距ＩＣ）離間することも可能
である。
また、第３図に示す如く、ボルト締付部位側から離間す
る箇所であるボルト用孔８．８間において、内縁部４ａ
の面には、ボルト用孔８側から離間するに従い幅が漸次
増大する素材１２−２を付着する。即ち、この素材１２
−２は、所定高さト■を有し前記素材１２−１に連設す
るとともにボルト用孔８．８間の中央部位で最大幅Ｌ２
に形成される。この箇所においても、素材１２−２の端
面には、同様に、丸みＲが形成されている。前記素材１
２は、通常変形するもので、例えば加熱することによっ
て硬化する熱可塑性材、経時によって硬化する合成樹脂
である。また、素材１２−２の内端面と基板の内端面４
ｂとを面一にせず、素材１２−２の内端面を内端面４ｂ
から少許（距ＩＭ Ｃ）離間することも可能である。従
って、素材１２は、ボルト用孔８側から離間するに従い
弾性変形が漸次困難な状態に構成される。
また、第５．６図において、１４．１６は内燃機関を構
成するシリンダヘッド、シリンダブロックであり、この
シリンダへラド１４とシリンダブロック１６とのデツキ
面間に形成される接合部１８に前記金属ガスケット２と
この金属ガスケット２面上に付着した素材１２とが介装
される。なお、符号２０は燃焼室、２２はピストンであ
る。
次に、この第１実施例の作用を説明する。
シリンダヘッド１４とシリンダブロック１６間の接合部
１８に介装された素材１２を付着した金属ガスケット２
は、ボルト締付力により圧縮され、これによりビード１
０が高さを低減して弾性変形する。このとき、第５．６
図に示す如く、ボルト用孔８側において締付圧が大きく
デツキ面間には金属ガスケット２の反発力等により比較
的小なる間隙Ｓ、が生ずる。一方、ボルト用孔８．８間
において締付圧が小さくデツキ面間には前記間隙Ｓｌよ
りも大なる間隙Ｓ２が生ずる。従って、ボルト用孔８側
において、素材１２−１が大なる締付圧によって弾性変
形されるが、この素材１２−１の最小幅り、が小なので
素材１２−１の変形が容易である。また、ボルト用孔８
．８間において、素材１２−２が小なる締付圧によって
弾性変形されるが、間隙Ｓ２に対処し得るように弾性変
形が困難な状態の最大幅Ｌ２の素材１２−２が設けられ
ているので、素材１２−２が間隙Ｓ２全体に合致すべく
変形される。この結果、基板４のビード１０と内端面４
ａ間の燃焼室用孔８周りにおいて、デツキ面間隙の差に
応じて素材１２を変形させることができ、スペーサの形
状を容易に設定することが可能となる。
そして、前記素材１２を金属ガスケット２のスペーサと
してそのまま使用する場合には、素材１２を接合部１８
に介設した状態にする。さすれば、素材１２は、使用時
の機関熱及び／または経時により硬化し、スペーサとし
て機能を果す。
また、前記素材１２をスペーサの型体として使用する場
合には、素材１２を接合部１８に介在した状態で放置し
て置くと、素材１２が経時により硬化する。次に、締結
用ボルトの締付を解除し、シリンダヘッド１４を外しデ
ツキ面間隙に合致した形状の素材１２を取外す。そして
、この変形した素材１２をスペーサの型体として機能さ
せ、デツキ面間隙に合致するスペーサを製作する。
この結果、各シリンダヘッド１４とシリンダブロック１
６とのデツキ面間隙全体に合致するスペーサを設けるこ
とができるので、デツキ面間隙全体を確実に補償し得る
。従って、燃焼ガスが接合部１８にリークするのを阻止
し、燃焼ガスに含存する物質が接合部１８に堆積するの
を回避し、シール性の低下を防止する。また、スペーナ
の製作を簡便に果し得るとともに、廉価とすることが可
能となる。更に、同幅に形成した素材を設けたものに比
し、材料量を減少し得て、廉価とすることが可能となる
。
また、素材１２を溶射によって金属ガスケット２に付着
したので、素材１２の付着作業を容易に果し得る。
第７〜ｌＯ図はこの発明の第２実施例を示すものである
る。以下の実施例において、上述の実施例と同一機能を
果す箇所には同一符号を付して説明する。
この第２実施例の特徴とするところは、以下の点にある
。即ち、金属ガスケット３２は、第７図に示す如く、基
板３４に燃焼室用孔３６−１．３６−２を直列に形成す
るとともに、これ等燃焼室用孔３６−１．３６−２の内
縁部３４−１ａ、３４−２ａを囲繞させて所定幅のビー
ド３８−１．３８−２を形成し、また外周縁側に複数の
ボルト用孔４０を形成して構成される。前記ビード３８
−１．３８−２頂部が指向する内縁部３４−１ａ、３４
−２ａの面には、溶射によって高さが異なる例えばニッ
ケル等の素材４２−１．４２−２を付着する。即ち、２
気筒内燃機関においては、シリンダブロックとシリンダ
ヘッドとを接合しボルト締付力によって締結した際に、
締付圧が異なって金属ガスケット３２の反発力により、
燃焼室用孔３６−１と燃焼室用孔３６−２とが近接する
箇所で最大のデツキ面間隙が生じ、また隣接するボルト
用孔４０とボルト用孔４０間において前記燃焼室用孔３
６−１．３６−２間の間隙に比し少許小なるデツキ面間
隙が生じ、更にボルト用孔４ｏ近傍において前記燃焼室
用孔３６−１．３６−２間のデツキ面間隙の略半分のデ
ツキ面間隙が生ずるものである。そこで、この異なるデ
ツキ面間隙を補償するために、第８図に示す如く、内縁
部３４−１ａ、３４−２ａの面には、燃焼室用孔３６−
１．３６−２間において最大の高さＨｌ、例えば１００
μｍの素材４２−１ａ、４２−２ａを付着する。この素
材４２−１ａの高さＨｌは、デツキ面間の間隙に圧縮変
形する所定高さを加えたものである。また、内縁部３４
−１ａの面には、第９図に示す如く、ボルト用孔４ｏ、
４０間において上述の高さＨｌに比し少許低い高さＨ２
、例えば８０μｍの素材４２−１ｂを付着する。同様に
、内縁部３４−２ａの外面には、高さＨ２の素材４２−
２ｂを付着する（図示せず）。更に、内縁部３４−１ａ
の面には、第１０図に示す如く、ボルト用孔４０近傍に
おいて前記高さＨｌの略半分の高さＨ３、例えば５０μ
ｍの素材４２−１ｃを付着する。同様に、内縁部３４−
２ａの外面には、高さＨ３の素材４２−２ｃを付着する
（図示せず）。
これにより、内縁部３４−１ａ、３４−２ａには、燃焼
室用孔３６−１．３６−２周りの異なる間隙に合致した
素材４２−１．４２−２が付着される。
従って、燃焼室用孔３６−１．３６−２間の素材４２−
１ａ、４２−２ａが最も弾性変形を困難とし、またボル
ト用孔４０．４０間の素材４２〜１ｂ、４２−２ｂが燃
焼室用孔３６−１．３６−２間のものに比し少許弾性変
形を容易とし、更にボルト用孔４０近傍の素材４２−Ｉ
Ｃ２４２−２ｃが上述の素材に比し最も弾性変形を容易
とするものである。
この第２実施例の構成によれば、気筒が直列に設けられ
た２気筒内燃機関の金属ガスケット３２においても、隣
接する燃焼室間のデツキ面間隙、ボルト用孔４０側から
離間する箇所のデツキ面間隙、そしてボルト用孔４０近
傍のデツキ面間隙の全てを補償するスペーサを形成する
ことができ、燃焼室周りのデツキ面間隙の拡縮を回避し
てビード３８−１．３８−２にへたりが生ずるのを防止
し、シール性を担保して使用寿命を長くし得る。
また、直列に設けられた多気筒の内燃機関のものでも、
同様にデツキ面間隙に合致したスペーサを形成し得る。
第１１〜１３図はこの発明の第３実施例を示すものであ
る。
この第３実施例の特徴とするところは、以下の点にある
。即ち、上述の第２実施例の金属ガスケット３２は一枚
の基板３４で構成されたものであるが、この第３実施例
の金属ガスケット５２は中間板５４と第１基板５６と第
２基板５８とによって構成される。つまり、金属ガスケ
ット５２は、中間板５４の両面に第１、第２基板５６．
５８を積層するとともに、第１基板５６の第１ビード６
０−１．６０−２の頂部及び第２基板５８の第２ビード
６２−１．６２−２の頂部を中間板５４に当接させず突
設し、その対向面に対し第１、第２基板５６．５８を対
称形状に配設している。また、上述の第２実施例の第８
図と同じ断面である第１１図に示す如く、中間板５４の
内縁部５４−１３．５４−２２の一面に重合する第１基
板５６の内縁部５６−１ａ、５６−２ａの外面に最大の
高さＨｌの第１素材６４−１ａ、６４−２ａを付着する
とともに、前記中間板５４の内縁部５４−１ａ、５４−
２ａの他面に重合する第２基板５８の内縁部５８−１’
ａ、５８−２ａの外面には同様に高さＨｌの第２素材
６６−１２．６６−２２を付着する。また、上述の第２
実施例の第９図と同じ断面である第１２図に示す如く、
ボルト用孔４０．４０間において、第１基板５６の内縁
部５６−１ａの外面に前記高さＨｌより少許低い高さＨ
２の第１素材６４−１ｂを付着するとともに、第２基板
５８の内縁部５８−１３の外面には同様に高さＨ２の第
２素材６６−１ｂを付着する。また、図示しないが第１
基板５６の内縁部５６−２ａの外面に高さＨ２の第１素
材６４−２ ｂを付着するとともに、第２基板５８の内
縁部５８−２ａの外面にも高さＨ２の第２素材６６−２
ｂを付着する。更に、上述の第２実施例の第１０図と同
じ断面である第１３図に示す如く、ボルト用孔４０近傍
において、第１基板５６の内縁部５６−１２の外面に前
記高さＨｌの略半分の高さＨ３の第１素材６４−ＩＣを
付着するとともに、第２基板５８の内縁部５８−１２の
外面には同様に高さＨ３の第２素材６６−１ｃを付着す
る。また、図示しないが第１基板５６の内端部５６−２
ａの外面に高さＨ３の第１素材６４−２Ｃを付着すると
ともに、第２基板５８の内縁部５８−２ａの外面にも高
さＨ３の第２素材６６−２Ｃを付着する。なお、中間板
５４と第１基板５６と第２基板５８とを一体的に結合す
る場合には、ボルト用孔４０に筒状の止め具（図示せず
）を挿入するとともに止め具の両端部を第１、第２基板
５６．５８面上に折曲げてかしめを施したり、あるいは
中間板５４、第１基板５６、第２基板５８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
ットで行う。
この第３実施例の構成によれば、上述の第２実施例と同
効を得るとともに、ビードの復元量及び復元力を増加さ
せ、シール面圧を高くすることができ、また追従性を有
さしめでシール効果を更に向上することが可能となる。
第１４〜１６図はこの発明の第４実施例を示すものであ
る。
この第４実施例の特徴とするところは、以下の点にある
。即ち、金属ガスケット７２は、中間板７４の両面に第
１、第２基板７６．７８を積層するとともに、第１基板
７６の第１ビード８０−１．８０−２の頂部及び第２基
板７８の第２ビード８２−１．８２−２の頂部を中間板
７４に当接させその対向面に対し第１、第２基板７６．
７８を対称形状に配設している。また、上述の第２実施
例の第８図と同じ断面である第１４図に示す如く、中間
板７４の第１基板７６側の内縁部７４−１２．７４−２
ａの面に最大の高さＨｌの第１素材８４−１ａ、８４−
２ａを付着するとともに、前記中間板７４の第２基板７
８側の内縁部７４−１２．７４−２２の面には同様に高
さＨ１の第２素材８Ｇ−１ａ、８６−２ａを付着する。
また、上述の第２実施例の第９図と同じ断面である第１
５図に示す如く、ボルト用孔４０．４０間において、中
間板７４の第１基板７６側の内縁部７４−１３の面に前
記高さＨｌより少許低い高さＨ２の第１素材８４−１ｂ
を付着するとともに、中間板７４の第２基板７８側の内
縁部７４−１２の面には同様に高さＨ２の第２素材８６
−１ｂを付着する。
また、図示しないが中間板７４の第１基板７６側の内縁
部７４−２ａの面に高さＨ２の第１素材８４−２ｂを付
着するとともに、中間板７４の第２基板７８側の内縁部
７４−２ａの面にも高さＨ２の第２素材８６−２ｂを付
着する。更に、上述の第２実施例の第１０図と同じ断面
である第１６図に示す如く、ボルト用孔４０近傍におい
て、中間板７４の第１基板７６側の内縁部７４−１ａの
面に前記高さＨｌの略半分の高さＨ３の第１素材８４−
ＩＣを付着するとともに、中間板７４の第２基板７８側
の内縁部７４−１ａの面には同様に高さＨ３の第２素材
８６−１ｃを付着する。また、図示しないが中間板７４
の第１基板７６側の内縁部７４−２ａの外面に高さＨ３
の第１素材８４−２０を付着するとともに、中間板７４
の第２基板７８例の内縁部７４−２２の外面にも高さＨ
３の第２素材８６−２ Ｃを付着する。なお、中間板７
４と第１基板７６と第２基板７８とを一体的に結合する
場合には、ボルト用孔４０に筒状の止め具（図示せず）
を挿入するとともに止め具の両端部を第１、第２基板７
６．７８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で行う。
この第４実施例の構成によれば、上述の第２実施例と同
効を得るとともに、ビードの復元量及び復元力を増加さ
せ、シール面圧を高くすることができ、また追従生を有
さしめでシール効果を更に向上し得る。また、第１、第
２素材８４．８６が中間板７４、第１．第２基板７６．
７８によって挾持されるので、第１、第２素材８４．８
６がシリレダヘッドのデツキ面やシリンダブロックのデ
ツキ面に直接に接することがない。また、第１１第２素
材８４．８６が中間板７４と第１、第２基板７６．７８
とによって形成される空間内で圧縮変形されるので、素
材が徒にフローすることがない。この結果、素材のこぼ
れ等の不都合を確実に防止することが可能となる。
なお、この考案は上述の実施例に限定されず、種々応用
改変が可能であることは勿論である。
例えば、上述の第１〜４実施例において、基板及び副板
の表面には、所望によりメッキおよび／またはシール材
を施したり、あるいは加硫ゴム層と未加硫ゴム層との複
合体を積層することも可能である。また、ボルト締付部
側から離間するに従い弾性復元力を大きくするために基
板のビードの高さを大にするとともにビードの幅を小さ
くする一方、ボルト締付部位側においては弾性復元力を
小さくするために基板のビードの高さを小にするととも
にビードの幅を大きく構成し、これによりデツキ面に均
等なシール圧を付与させることが可能である。
また、ボルト締付部位側から離間するに従い弾性変形が
漸次困難となるように、同幅に形成した素材の密度をボ
ルト締付部位側で小にするとともにボルト締付部位側か
ら離間するに従い大に変化させる。これにより、素材の
形成を容易にするとともに、ボルト締付部位側から離間
する箇所において素材の強さを向上し、大なる間隙Ｓ２
に合致するスペーサを形成し得る。
更に、ボルト締付部位側から離間するに従い弾性変形が
漸次困難となるように、同幅に形成した素材の硬度をボ
ルト締付部位側で小にするとともに、ボルト締付部位側
から離間するに従い大とする。これにより、ボルト締付
部位側で圧縮変形量を多くし、ボルト締付部位側から離
間するに従い圧縮変形量を少なくして、素材の接合面に
対する密着性を良好とし得る。
更にまた、ボルト締付部位側から離間するに従い弾性変
形が漸次困難となるように、素材の材質、例えばポルト
締付力により発生する応力がボルト締付部位側で小さく
なるとともにボルト締付部位側から離間するに従い漸次
大きく変化するように素材を形成する。これにより、ボ
ルト締付力が作用した際に、素材の変形量をボルト締付
部位側で大にするとともにボルト締付部位側から離間す
るに従い小とすることが可能で、素材を容易に変形し得
る。
また、単気筒や２気筒内燃機関のスペーサの製作に限定
せず、多気筒内燃機関用のスペーサを製作することも可
能である。
〔発明の効果〕
以上詳細な説明から明らかなようにこの発明によれば、
被接合部材のボルト締付部位側から離間するに従い弾性
変形が漸次困難な状態に構成した素材を被接合部材のデ
ツキ面間に介設することにより、デツキ面間隙に応じて
素材を容易に変形させる。そして、変形した素材をその
まま金属ガスケットのスペーサとしてデツキ面間に介設
したり、あるいは被接合部材の締結を解除して素材を取
出し、素材を金属ガスケットのスペーサの型体として使
用する。これにより、被接合部材のデツキ面間隙全体に
合致する金属ガスケットのスペーサを設けることができ
、デツキ面間隙全体を確実に補償し、燃焼ガス圧力や機
関熱の影響によりデツキ面間隙の拡縮を防止し得て、安
定したシールを果し、シール性の向上を図り得る。従っ
て、燃焼ガスが接合部にリークするのを防止し得るので
、接合部の汚損を回避するとともに、燃焼ガスに含有す
る物質の堆積をも回避し、シール性の低下を防止するこ
とが可能となり、シール効果を大とし得る。
また、金属ガスケットのスペーサの設定方法及び製作が
極めて簡便である。
更に、ビードを形成した金属ガスケツ）・にデツキ面間
の間隙に合致するスペーサを重合させて被接合部材のデ
ツキ面間に介在したので、燃焼室周りの大なるデツキ面
間隙を確実に補償するとともに、交番荷重によってビー
ドにへたりが生じるのを防止し、シール性を担保して使
用寿命を長くし得る。
４、図面の簡単な説明
第１〜６図はこの発明の実施例を示すもので、第１図は
素材を付着した金属ガスケットの平面図、第２図は第１
図のｎ−ｍ線による要部拡大断面図、第３図は第１図の
ｍ−ｍ線による要部拡大断面図、第４図は第２図の要部
拡大図、第５．６図は接合部に素材を付着した金属ガス
ケットを介装し締付けた状態の一部省略した要部断面図
である。
第７〜１０図はこの発明の第２実施例を示すもので、第
７図は素材を付着した２気筒内燃機関用の金属ガスケッ
トの平面図、第８図は第７図の〜１−〜１線による金属
ガスケットの拡大断面図、第９図は第７図のＩＸ−ＩＸ
線による金属ガスケットの拡大断面図、第１０図は第７
図のＸ−Ｘ線による金属ガスケットの拡大断面図である
。
第１１〜１３図はこの発明の第３実施例を示すもので、
第１１図は隣接する燃焼室用孔間の金属ガスケットの拡
大断面図、第１２図はボルト用孔間の金属ガスケットの
拡大断面図、第１３図はボルト用孔近傍の金属ガスケッ
トの拡大断面図である。
第１４〜１６図はこの発明の第４実施例を示すもので、
第１４図は隣接する燃焼室用孔間の金属ガスケットの拡
大断面図、第１５図はボルト用孔間の金属ガスケットの
拡大断面図、第１６図はボルト用孔近傍の金属ガスケッ
トの拡大断面図である。
図において、２は金属ガスケット、４は基板、６は燃焼
室用孔、８はボルト用孔、１０はビード、１２は素材、
１４はシリンダヘッド、１６はシリンダブロック、１８
は接合部、そして２０は燃焼室である。1 to 6 show embodiments of the present invention. FIG. 1 is a plan view of a metal gasket to which a material is attached, and FIG.
Figure 3 is an enlarged cross-sectional view of the main part taken along line nn in Figure 1, Figure 4 is an enlarged view of the main part in Figure 2, and Figure 5.6. 1 is a partially omitted sectional view of a main part in a state where a metal gasket with a material attached to the joint is interposed and tightened. Figures 7 to 10 show a second embodiment of the present invention; Figure 7 is a plan view of a metal gasket for a two-cylinder internal combustion engine to which the material is attached; Figure 8 is the line ■-■ in Figure 7; FIG. 9 is an enlarged sectional view of the metal gasket according to FIG.
FIG. 10 is an enlarged sectional view of the metal gasket according to x-x vA in FIG. Figures 1I to 13 show a third embodiment of the invention,
Fig. 11 is an enlarged sectional view of the metal gasket between adjacent combustion chamber holes, Fig. 12 is an enlarged sectional view of the metal gasket between the bolt holes, and Fig. 13 is an enlarged sectional view of the metal gasket near the bolt hole. It is. 14 to 16 show a fourth embodiment of this invention,
Fig. 14 is an enlarged sectional view of the metal gasket between adjacent combustion chamber holes, Fig. 15 is an enlarged sectional view of the metal gasket between the bolt holes, and Fig. 16 is an enlarged sectional view of the metal gasket near the bolt hole. It is. In the figure, 2 is a metal gasket, 4 is a substrate, 6 is a combustion chamber hole, 8 is a bolt hole, 10 is a bead, 12 is a material,
14 is a cylinder head, 16 is a cylinder block, 18
is a joint, and 20 is a combustion chamber. Patent Applicant: Japan Metal Gasket Co., Ltd. Agent, Patent Attorney Yoshimi Saigo Figure 4 O Figure 6 Procedural Master's Manual (Method) April 21, 1986 Michibe Uga, Commissioner of the Patent Office 1, of the case Display Patent Application No. 067119 of 1988 2, Title of Invention Method for setting spacers interposed between deck surfaces of members to be joined and method for forming spacers using this method 3, Relationship with amended person's case Patent application Address: 3,308 people, Oaza Mikajiri, Kumagaya City, Saitama Prefecture
Name: Nippon Metal Gasket Co., Ltd. Representative: Kosaku Ueda 4, Agent: 105 7EL 03-438-
2241 (Representative) Address: 3-4-17 Toranomon, Minato-ku, Tokyo 6, Subject of amendment 7, Contents of amendment Commissioner of the Patent Office Kuro 1) Akio Tono 1, Patent Application No. 1988-67119 2, Title of the invention FL gasket 3 having a spacer formed by pressing deformation between the deck surfaces of the members to be joined, Relationship to the case of the person making the amendment Patent applicant Address Oaza Mikajiri Azade, Kumagaya City, Saitama Prefecture, p3308 Name Japan Metal Gasket Co., Ltd. Representative Kosaku Ueda 4, Agent 105 7EL 03-438-
2241 (Representative) Address: 3-4-17-6, Toranomon, Minato-ku, Tokyo, Subject of amendment: Full text of the revised specification +1, Title of the invention: ``Comprising a spacer formed by pressing deformation between deck surfaces of members to be joined'' Correct to "metal gasket". (2), As shown in the attached sheet □□-Bottom 1, Name of the invention Metal gasket 2 having a spacer formed by pressing deformation between the deck surfaces of the joined members, Claims Full team length Bolt tightening of the joined members A material configured to be gradually difficult to deform under pressure as the distance from the part side increases is interposed between the deck surfaces of the surface rudder welded members, and then this material is set by being deformed by bolt tightening force. A material is inserted between the deck surfaces of the members to be joined, and the material is configured such that pressing deformation is gradually difficult as the distance from the elbow tightening site increases between the deck surfaces of the members to be joined, and then this material is tightened with bolts. Deformed by force, this deformed material is Fm g
8. A gold 7 gasket used to form a spacer that is shaped by pressing and shaping between the deck surfaces of members to be joined, characterized in that it is formed to function as a spacer or as a mold for manufacturing a spacer. 3. The above-mentioned material. is a material whose width is gradually increased as it moves away from the bolt tightening area so that it becomes progressively more difficult to deform under pressure as it moves away from the bolt tightening area. In the deck surface 4 of the members to be joined according to item 2, the height of the material gradually increases as the material moves away from the bolt tightening area so that pressing deformation becomes gradually difficult as the material moves away from the bolt tightening area. 1 pressure between the deck surfaces of the members to be joined according to claim 1, item 2, which is a large material.
5. The material is separated from the bolt tightening area so that it becomes progressively more difficult to deform under pressure as it moves away from the bolt tightening area. 6 between the deck surfaces of the members to be joined according to claim 1, which is a material whose density gradually increases according to 7 between the deck surfaces of the members to be joined according to claim 1, U, and 2, which is a material whose hardness gradually increases as the distance from the bolt tightening region increases so that deformation becomes gradually difficult. , the material is
Claim 1: 1! The material is made of a material whose quality gradually changes as the distance from the bolt tightening area increases, so that pressing deformation becomes progressively more difficult as the distance from the bolt tightening area increases. ■ Between the deck surfaces of the members to be joined as described in Section 2
Gold gasket to oil the spacer which is fumed by pressure. 3. Detailed Description of the Invention [Field of Industrial Application] This invention relates to a metal gasket having a spacer formed by pressing deformation between the deck surfaces of members to be joined, and particularly relates to a metal gasket that is interposed between the deck surfaces of the members to be joined. It is possible to easily set the shape of the metal gasket spacer that is to be attached, and to interpose a metal gasket spacer that matches the deck surface gap, thereby reliably compensating for the entire deck surface gap and improving sealing performance. The present invention relates to a metal gasket having a spacer formed by pressing deformation between deck surfaces. [Prior Art] A gasket or a spacer is interposed between the deck surfaces of a cylinder head and a cylinder block that constitute an internal combustion engine in order to prevent combustion gas from leaking. In recent years, metal gaskets having beads formed to seal deck surfaces have been utilized. [Problems to be Solved by the Invention] By the way, when the cylinder head and cylinder block, which are members to be joined, are tightened using tightening bolts, the tightening pressure is high and the gap is small on the side where the bolts are tightened. On the other hand, the tightening pressure is lower at a location away from the bolt tightening area, and the gap between the deck surface of the cylinder head and the deck surface of the cylinder block becomes larger. Therefore, a difference in gap occurs between the deck surfaces of the cylinder head and the cylinder block. However, conventionally, the spacer shape has to be set according to the difference in the gap between the deck surface between the bolt tightening part and the part separated from the bolt fastening part, that is, the width, height, and density of the spacer. etc. could not be easily set. For this reason, it is not possible to insert a spacer that matches the gap between the deck surfaces, which tends to cause leakage of combustion gas, and substances contained in the combustion gas accumulate at the joint between the deck surfaces, reducing sealing performance. At the same time, during use, for example, the deck surface gap around the combustion chamber expands and contracts due to the effects of combustion gas pressure and engine heat, so in the case of metal gaskets in particular, the bead may sag due to alternating loads, shortening its service life. There are some inconveniences. [Object of the invention] Therefore, the object of this invention is to eliminate the above-mentioned disadvantages.
By easily setting the shape of the metal gasket spacer interposed between the deck surfaces of each member to be joined, and by interposing the metal gasket spacer that matches the deck surface gap, the entire deck surface gap is reliably compensated. This prevents the deck surface gap from expanding or contracting due to the influence of combustion gas pressure or engine heat.
The object of the present invention is to realize a metal gasket having a spacer formed by pressing deformation between the deck surfaces of members to be joined, which can achieve stable sealing and improve sealing performance. [Means for Solving the Problems] To achieve this object, the present invention provides a metal gasket I. , a material in which the shape of the spacer is made to be gradually difficult to deform under pressure as it moves away from the bolt tightening region of the members to be joined is interposed between the deck surfaces of the members to be joined, and then this material is It is characterized by being deformed and set by the port tightening force. In addition, in a metal gasket having a spacer interposed between a substrate surface in which a bead is formed on an elastic metal plate and a deck surface of a member to be joined, pressing deformation becomes gradually difficult as the distance from the bolt tightening region of the member to be joined increases. A material configured in a state is interposed between the deck surfaces of the members to be joined, and then this material is deformed by a port tightening force, and this deformed material functions as the spacer or as a mold for producing the spacer. It is characterized by being formed to allow [Function] In this invention, first, a material is provided between the deck surfaces of the members to be joined on the substrate surface of the metal gasket in a state in which elastic deformation becomes gradually difficult as the distance from the bolt tightening region increases, and then the material is placed between the deck surfaces of the members to be joined. is tightened with a fastening bolt, and the material is deformed by the bolt tightening force. At this time, on the side where the bolt is tightened, the material is easily compressed and deformed into an appropriate shape that matches the small gap. Furthermore, since it is difficult for the material to be elastically deformed at a location away from the bolt tightening region, the material is deformed into an appropriate shape that matches the large gap. Thereby, the shape of the spacer of the metal gasket can be easily set by deforming the material according to the difference in the deck surface gap of the members to be joined. and,
This deformed material can be directly inserted as a spacer between the deck surfaces of the parts to be joined, or the material can be taken out by releasing the fastening of the parts to be joined, and this material can be used as a spacer mold to produce a spacer for the parts to be joined. do. This results in
It is possible to obtain a metal gas get spacer that matches the entire gap between the deck surfaces of the members to be joined, thereby compensating for the entire gap between the deck surfaces and improving sealing performance. Therefore, the method for setting and manufacturing the spacer provided on the metal gas get is extremely simple. [Embodiments of the Invention] Examples of the present invention will be described in detail and specifically below based on the drawings. 1 to 6 show a first embodiment of the present invention. In the figure, 2 is a metal gasket, and this metal gasket 2 is constituted by a substrate 4 made of an elastic metal plate. A combustion chamber hole 6 having an inner diameter slightly larger than the cylinder inner diameter is formed in this substrate 4, and
A bolt hole 8 is formed around the combustion chamber hole 6, into which a plurality of tightening bolts are inserted. Further, a bead 10 of a predetermined width is formed on the substrate 4 so as to surround the inner edge 4a of the combustion chamber hole 6 and go around the inside of the bolt hole 8. As described above, by forming the inner diameter of the combustion chamber hole 6 to be slightly larger than the cylinder inner diameter, when the bead 10 of the metal gasket 2 is compressively deformed by the port tightening force, the combustion chamber hole 6 side of the substrate 4 This prevents the inner edge 4a of the combustion chamber from protruding into the combustion chamber 20, which will be described later. Further, on the inner edge 4a of the combustion chamber hole 6 of the substrate 4, a material 12 is provided as described below, and the material 12 is configured so that elastic deformation becomes gradually difficult as the distance from the bolt hole 8 side increases. That is, as shown in FIG. 2, on the side of the bolt hole 8 which is the side where the bolt is tightened, the inner edge 4a toward which the top of the bead 10 is directed
The material 12 is applied to the surface by an adhesion method such as thermal spraying or plating.
-1 is attached. At this time, the material 12-1 is attached so that it has a predetermined height H and a width from the inner end surface 4b that is the minimum width L1. In addition, as shown in Fig. 2.4, on the end face of the material 12-1 facing the combustion chamber 20 side, a width of the material that matches the area is added to prevent the end of the material 12-1 from spilling. To ensure this, a roundness R is formed. In order to prevent the material 12-1 from spilling, for example, the inner end surface of the material 12-1 and the inner end surface 4b of the substrate 4 are not flush with each other, and the inner end surface of the material 12-1 is slightly spaced apart from the inner end surface 4b. ) It is also possible to separate them. Further, as shown in FIG. 3, between the bolt holes 8 and 8, which are located away from the bolt tightening part, the inner edge 4a
A material 12-2 whose width gradually increases as it moves away from the bolt hole 8 side is attached to the surface. That is, this material 12
-2 has a predetermined height T and is connected to the material 12-1, and has a maximum width L2 at the center between the bolt holes 8.8.
is formed. At this location, a roundness R is similarly formed on the end surface of the material 12-2. Said material 1
2 is a material that normally deforms, such as a thermoplastic material that hardens when heated, or a synthetic resin that hardens over time. In addition, the inner end surface of the material 12-2 and the inner end surface 4 of the substrate
b and the inner end surface of the material 12-2 is not flush with the inner end surface 4b.
It is also possible to be a small distance (distance IMC) away from the center. Therefore, the material 12 is configured such that elastic deformation becomes progressively more difficult as the material 12 moves away from the bolt hole 8 side. Further, in Fig. 5.6, 14.16 is a cylinder head and a cylinder block constituting an internal combustion engine. A gasket 2 and a material 12 attached to the surface of the metal gasket 2 are interposed. In addition, the code|symbol 20 is a combustion chamber, and 22 is a piston. Next, the operation of this first embodiment will be explained. Metal gasket 2 with material 12 attached to the joint 18 between the cylinder head 14 and cylinder block 16
is compressed by the bolt tightening force, which causes bead 1
0 reduces the height and deforms elastically. At this time, No. 5.6
As shown in the figure, the tightening pressure is large on the bolt hole 8 side, and a relatively small gap S is created between the deck surfaces due to the repulsive force of the metal gasket 2, etc. On the other hand, the tightening pressure is small between the bolt holes 8.8, and a gap S2 larger than the gap S1 is created between the deck surfaces. Therefore, on the bolt hole 8 side, the material 12-1 is elastically deformed by the large tightening pressure, but since the minimum width of the material 12-1 is small, the material 12-1 is easily deformed. In addition, bolt hole 8
．． 8, the material 12-2 is elastically deformed by a small tightening pressure, but the material 12-2 with the maximum width L2, which is difficult to elastically deform, is provided so as to cope with the gap S2. , the blank 12-2 is deformed to fit the entire gap S2. As a result, the bead 10 of the substrate 4 and the inner end surface 4
The material 12 can be deformed around the combustion chamber hole 8 between the holes 8 and 8 in accordance with the difference in the deck surface gap, and the shape of the spacer can be easily set. When the material 12 is used as it is as a spacer for the metal gasket 2, the material 12 is attached to the joint portion 18.
It is placed in a state where it is interposed. The material 12 will then harden due to engine heat and/or time during use, and will function as a spacer. Furthermore, when the material 12 is used as a mold for a spacer, if the material 12 is left interposed in the joint portion 18, the material 12 will harden over time. Next, the fastening bolts are untightened, the cylinder head 14 is removed, and the material 12 having a shape that matches the deck surface gap is removed. Then, this deformed material 12 is made to function as a spacer mold to produce a spacer that matches the deck surface gap. As a result, each cylinder head 14 and cylinder block 1
Since it is possible to provide a spacer that matches the entire deck surface gap with 6, it is possible to reliably compensate for the entire deck surface gap. Therefore, combustion gas is prevented from leaking into the joint 18, substances contained in the combustion gas are prevented from accumulating on the joint 18, and sealing performance is prevented from deteriorating. Further, the spanner can be manufactured easily and at a low cost. Furthermore, the amount of material can be reduced and the cost can be reduced compared to the case where materials are formed to have the same width. Further, since the material 12 is attached to the metal gasket 2 by thermal spraying, the work of attaching the material 12 can be accomplished easily. Figures 7 to 10 show a second embodiment of the invention. In the following embodiments, parts having the same functions as those in the above-described embodiments will be described with the same reference numerals. This second embodiment is characterized by the following points. That is, as shown in FIG. 7, the metal gasket 32 has combustion chamber holes 36-1, 36-2 formed in series in the substrate 34, and the inner edges of these combustion chamber holes 36-1, 36-2. Beads 38-1 and 38-2 of a predetermined width are formed by surrounding the portions 34-1a and 34-2a, and a plurality of bolt holes 40 are formed on the outer peripheral edge side. The bead 38
-1.38-2 Inner edge portions 34-1a, 34 where the top is oriented
Materials 42-1 and 42-2, such as nickel, having different heights are attached to the surface -2a by thermal spraying. That is, 2
In a cylinder internal combustion engine, when the cylinder block and cylinder head are joined and fastened by bolt tightening force,
Due to the different tightening pressures and the repulsive force of the metal gasket 32,
The maximum deck surface gap occurs at a location where the combustion chamber hole 36-1 and the combustion chamber hole 36-2 are close to each other, and between the adjacent bolt hole 40, the combustion chamber hole 3
A deck surface gap that is slightly smaller than the gap between the combustion chamber holes 36-1 and 36-2 is generated, and furthermore, approximately half of the deck surface gap between the combustion chamber holes 36-1 and 36-2 is created near the bolt hole 4o. This creates a gap between the deck surfaces. Therefore, in order to compensate for this different deck surface gap, as shown in FIG.
Maximum height Hl between 1.36-2, e.g. 100
μm materials 42-1a and 42-2a are attached. The height Hl of this material 42-1a is the sum of the gap between the deck surfaces and a predetermined height for compressive deformation. In addition, the inner edge portion 34
-1a has bolt holes 4o, as shown in FIG.
40, the height H2 is slightly lower than the above-mentioned height Hl.
For example, a material 42-1b having a thickness of 80 μm is attached. Similarly, on the outer surface of the inner edge portion 34-2a, a material 42-
2b (not shown). Furthermore, the inner edge portion 34-1a
As shown in FIG. 10, there is a height H3 approximately half of the height Hl, for example 50μ, in the vicinity of the bolt hole 40.
The material 42-1c of m is attached. Similarly, the inner edge 34-
A material 42-2c with a height H3 is attached to the outer surface of 2a (not shown). As a result, materials 42-1.42-2 that match different gaps around the combustion chamber holes 36-1.36-2 are attached to the inner edge portions 34-1a and 34-2a. Therefore, the material 42- between the combustion chamber holes 36-1 and 36-2.
1a and 42-2a are the most difficult to elastically deform, and the materials 42 to 1b and 42-2b between the bolt holes 40 and 40 have less elasticity than those between the combustion chamber holes 36-1 and 36-2. The material 42-I near the bolt hole 40 can be easily deformed.
C242-2c has the easiest elastic deformation compared to the above-mentioned materials. According to the configuration of the second embodiment, even in the metal gasket 32 of a two-cylinder internal combustion engine in which the cylinders are arranged in series, the deck surface gap between adjacent combustion chambers and the deck surface at a location separated from the bolt hole 40 side can be reduced. It is possible to form a spacer that compensates for both the surface gap and the deck surface gap near the bolt hole 40, and avoids the expansion and contraction of the deck surface gap around the combustion chamber and settles into the bead 38-1.38-2. This prevents this from occurring, ensures sealing performance, and extends the service life. In addition, even with multi-cylinder internal combustion engines installed in series,
Similarly, spacers can be formed that match the deck surface gaps. 11 to 13 show a third embodiment of the present invention. This third embodiment is characterized by the following points. That is, while the metal gasket 32 of the second embodiment described above is composed of a single substrate 34, the metal gasket 52 of this third embodiment is composed of an intermediate plate 54, a first substrate 56, and a second substrate 58. It is composed of That is, the metal gasket 52 is placed on both sides of the intermediate plate 54 on the first and second substrates 56 .
58 and the first bead 6 of the first substrate 56.
The top of the second bead 62-1.60-2 and the top of the second bead 62-1.62-2 of the second substrate 58 are provided in a protruding manner without contacting the intermediate plate 54, and the first and second beads 62-1. Substrates 56, 58 are arranged symmetrically. In addition, the eighth example of the second embodiment described above
As shown in FIG. 11, which is the same cross section as the figure, the maximum The first materials 64-1a, 64-2a having a height Hl are attached, and the inner edge portions 54-1a, 54-2 of the intermediate plate 54 are attached.
An inner edge portion 58-1' of the second substrate 58 overlapping the other surface of the second substrate 2a
Similarly, a second material 66-12, 66-22 with a height Hl is attached to the outer surface of the second material 66-12 and 66-22 of 58-2a. In addition, the second
As shown in FIG. 12, which is the same cross section as FIG. 9 of the embodiment,
Between the bolt holes 40 and 40, the outer surface of the inner edge 56-1a of the first substrate 56 has a height H that is slightly lower than the height Hl.
At the same time, a second material 66-1b having a height of H2 is similarly attached to the outer surface of the inner edge portion 58-13 of the second substrate 58. Also, although not shown, the first
A first material 64-2b with a height H2 is attached to the outer surface of the inner edge 56-2a of the substrate 56, and a second material 66-2b with a height H2 is attached to the outer surface of the inner edge 58-2a of the second substrate 58. 2
Attach b. Further, as shown in FIG. 13, which is the same cross-sectional view as FIG. 10 of the second embodiment described above, in the vicinity of the bolt hole 40, a height approximately equal to the height Hl is formed on the outer surface of the inner edge portion 56-12 of the first substrate 56. A first material 64-IC having a half height H3 is attached, and a second material 66-1c having a height H3 is similarly attached to the outer surface of the inner edge 58-12 of the second substrate 58. Although not shown, the inner end 56-2 of the first substrate 56
A first material 64-2C with a height H3 is attached to the outer surface of the second substrate 58, and a second material 66-2C with a height H3 is also attached to the outer surface of the inner edge 58-2a of the second substrate 58. Note that when the intermediate plate 54, the first substrate 56, and the second substrate 58 are integrally combined, a cylindrical stopper (not shown) is inserted into the bolt hole 40, and both ends of the stopper are inserted. are bent onto the surfaces of the first and second substrates 56 and 58 and caulked, or by forming a part of the intermediate plate 54, first substrate 56, and second substrate 58 to protrude, and to prevent these protruding parts. This is done by spot welding or riveting. According to the configuration of the third embodiment, it is possible to obtain the same effect as the above-mentioned second embodiment, increase the restoring amount and restoring force of the bead, increase the sealing surface pressure, and have followability. It becomes possible to further improve the sealing effect by tightening. 14 to 16 show a fourth embodiment of the present invention. This fourth embodiment is characterized by the following points. That is, the metal gasket 72 laminates the first and second substrates 76, 78 on both sides of the intermediate plate 74, and also laminates the tops of the first beads 80-1, 80-2 of the first substrate 76 and the second substrate 78. The tops of the second beads 82-1, 82-2 are brought into contact with the intermediate plate 74, and the first and second substrates 76.
78 are arranged symmetrically. Further, as shown in FIG. 14, which is the same cross section as FIG. 8 of the second embodiment, the inner edge portion 74-12, 74-2 of the intermediate plate 74 on the first substrate 76 side
The first materials 84-1a, 84- with the maximum height Hl on the surface a
2a and the second substrate 7 of the intermediate plate 74.
Similarly, second materials 8G-1a and 86-2a having a height H1 are attached to the inner edge portions 74-12 and 74-22 on the 8 side. In addition, the first cross section is the same as that of FIG.
As shown in FIG. 5, a first material 84-1b with a height H2 slightly lower than the height H1 is formed on the inner edge 74-13 of the intermediate plate 74 on the first substrate 76 side between the bolt holes 40 and 40.
At the same time, a second material 86 having a height H2 is similarly attached to the inner edge 74-12 of the intermediate plate 74 on the second substrate 78 side.
-1b is attached. Although not shown, a first material 84-2b having a height of H2 is attached to the surface of the inner edge 74-2a of the intermediate plate 74 on the first substrate 76 side, and the inner edge of the intermediate plate 74 on the second substrate 78 side is attached. A second material 86-2b having a height of H2 is also attached to the surface of 74-2a. Furthermore, as shown in FIG. 16, which is the same cross-sectional view as FIG. 10 of the second embodiment, the inner edge 74-1a of the intermediate plate 74 on the first substrate 76 side has the above-described The first material 84- has a height H3 that is approximately half the height Hl.
While attaching the IC, a second material 86-1c having a height of H3 is similarly attached to the surface of the inner edge 74-1a of the intermediate plate 74 on the second substrate 78 side. Also, although not shown, the intermediate plate 74
A height H3 is formed on the outer surface of the inner edge 74-2a on the first substrate 76 side.
At the same time, the first material 84-20 of the intermediate plate 74 is attached.
The outer surface of the inner edge portion 74-22 of the second substrate 78 also has a height H.
3, the second material 86-2C is attached. In addition, the intermediate plate 7
4, the first substrate 76, and the second substrate 78, a cylindrical stopper (not shown) is inserted into the bolt hole 40.
while inserting both ends of the stopper into the first and second substrates 7.
A part of 6.78 is formed to protrude, and these protruding parts are spot welded or riveted. According to the configuration of the fourth embodiment, it is possible to obtain the same effect as the above-mentioned second embodiment, increase the restoring amount and restoring force of the bead, increase the sealing surface pressure, and have a follow-up effect. The sealing effect can be further improved by tightening. Further, the first and second materials 84 and 86 are connected to the intermediate plate 74 and the first and second materials 84 and 86, respectively. Second substrate 76.
78, so the first and second materials 84.8
6 does not come into direct contact with the deck surface of the cylinder radar head or the deck surface of the cylinder block. In addition, the eleventh second material 84.86 is connected to the intermediate plate 74 and the first and second substrates 76.78.
Since the material is compressed and deformed within the space formed by the material, the material does not flow unnecessarily. As a result, it is possible to reliably prevent inconveniences such as material spillage. It should be noted that this invention is not limited to the above-mentioned embodiments, and of course can be modified in various ways. For example, in the first to fourth embodiments described above, plating and/or sealing material may be applied to the surfaces of the substrate and sub-plate as desired, or a composite of a vulcanized rubber layer and an unvulcanized rubber layer may be laminated. It is also possible to do so. In addition, the height of the bead on the board is increased and the width of the bead is decreased in order to increase the elastic restoring force as the distance from the bolt tightening area increases, while the elastic restoring force decreases toward the bolt tightening area. In order to achieve this, it is possible to reduce the height of the bead of the substrate and increase the width of the bead, thereby making it possible to apply an even sealing pressure to the deck surface. In addition, so that elastic deformation becomes progressively more difficult as the distance from the bolt tightening area increases, the density of the material formed with the same width is made smaller on the bolt tightening area, and increases as the distance from the bolt tightening area increases. change to This not only makes it easier to form the material, but also improves the strength of the material in areas that are far away from the bolt tightening area, resulting in a large gap S2.
A spacer can be formed that matches the . Furthermore, in order to make elastic deformation progressively more difficult as the distance from the bolt tightening area increases, the hardness of the material formed with the same width is reduced on the bolt tightening area, and as the distance from the bolt tightening area increases, Make it large. Thereby, the amount of compressive deformation is increased on the bolt tightening site side, and the amount of compressive deformation is decreased as the distance from the bolt tightening site side increases, thereby making it possible to improve the adhesion of the material to the joining surface. Furthermore, as the distance from the bolt tightening area increases, elastic deformation becomes progressively more difficult. The material is formed so that it changes gradually as it moves away from the surface. As a result, when bolt tightening force is applied, the amount of deformation of the material can be increased on the bolt tightening part side and become smaller as it moves away from the bolt tightening part, making it possible to easily deform the material. It is possible. Furthermore, the present invention is not limited to manufacturing spacers for single-cylinder or two-cylinder internal combustion engines, and it is also possible to manufacture spacers for multi-cylinder internal combustion engines. [Effects of the Invention] As is clear from the above detailed description, according to the present invention,
By interposing a material between the deck surfaces of the welded parts that makes elastic deformation progressively more difficult as the distance from the bolt tightening area of the welded parts increases, the material can be easily deformed according to the gap between the deck surfaces. let Then, the deformed material is inserted as it is between the deck surfaces as a spacer for a metal gasket, or the material to be joined is released and the material is taken out, and the material is used as a mold for a spacer for a metal gasket. This makes it possible to provide a metal gasket spacer that matches the entire deck surface gap of the parts to be joined, reliably compensates for the entire deck surface gap, and prevents the deck surface gap from expanding or contracting due to the effects of combustion gas pressure or engine heat. It is possible to achieve stable sealing and improve sealing performance. Therefore, it is possible to prevent combustion gas from leaking into the joint, thereby avoiding contamination of the joint, and also avoiding the accumulation of substances contained in the combustion gas, thereby preventing deterioration in sealing performance. , the sealing effect can be increased. Furthermore, the setting method and manufacturing of the metal gasket spacer is extremely simple. Furthermore, a spacer that matches the gap between the deck surfaces of the members to be joined is superposed on the metal gasket (with a bead formed thereon), and is interposed between the deck surfaces of the parts to be joined, so that the large gap between the deck surfaces around the combustion chamber can be reliably compensated for. At the same time, it is possible to prevent the bead from sagging due to alternating loads, ensure sealing performance, and extend the service life. 4. Brief description of the drawings Figures 1 to 6 show embodiments of the present invention.
Figure 3 is an enlarged cross-sectional view of the main part taken along line mm in Figure 1, Figure 4 is an enlarged view of the main part in Figure 2, Figure 5.6 1 is a partially omitted sectional view of a main part in a state where a metal gasket with a material attached to the joint is interposed and tightened. Figures 7 to 10 show a second embodiment of the present invention, in which Figure 7 is a plan view of a metal gasket for a two-cylinder internal combustion engine to which the material is attached, and Figure 8 is ~1-~ in Figure 7. An enlarged cross-sectional view of the metal gasket along one line, Figure 9 is IX-IX in Figure 7.
An enlarged cross-sectional view of the metal gasket drawn by a line, FIG.
FIG. 3 is an enlarged cross-sectional view of the metal gasket taken along line XX in the figure. Figures 11 to 13 show a third embodiment of this invention.
Fig. 11 is an enlarged sectional view of the metal gasket between adjacent combustion chamber holes, Fig. 12 is an enlarged sectional view of the metal gasket between the bolt holes, and Fig. 13 is an enlarged sectional view of the metal gasket near the bolt hole. It is. 14 to 16 show a fourth embodiment of this invention,
Fig. 14 is an enlarged sectional view of the metal gasket between adjacent combustion chamber holes, Fig. 15 is an enlarged sectional view of the metal gasket between the bolt holes, and Fig. 16 is an enlarged sectional view of the metal gasket near the bolt holes. It is. In the figure, 2 is a metal gasket, 4 is a substrate, 6 is a combustion chamber hole, 8 is a bolt hole, 10 is a bead, 12 is a material,
14 is a cylinder head, 16 is a cylinder block, 18
is a joint, and 20 is a combustion chamber.
Claims (1)
押圧変形が漸次困難な状態に構成した素材を前記被接合
部材のデッキ面間に介設し、次にこの素材をボルト締付
力によって変形させ、スペーサの形状を設定することを
特徴とする被接合部材のデッキ面間に介在するスペーサ
の設定方法。 ２、被接合部材のボルト締付部位側から離間するに従い
押圧変形が漸次困難な状態に構成した素材を前記被接合
部材のデッキ面間に介設し、次にこの素材をボルト締付
力によって変形させ、この変形した素材をスペーサとし
てあるいはスペーサを製作する型体として機能させるべ
く形成したことを特徴とする被接合部材のデッキ面間に
介在するスペーサの形成方法。 ３、前記素材は、前記ボルト締付部位側から離間するに
従い押圧変形が漸次困難な状態になるべく前記ボルト締
付部位側から離間するに従い幅が漸次大きく形成された
素材である特許請求の範囲第１項及び第２項に記載の被
接合部材のデッキ面間に介在するスペーサの設定方法と
この方法を利用したスペーサの形成方法。 ４、前記素材は、前記ボルト締付部位側から離間するに
従い押圧変形が漸次困難な状態になるべく前記ボルト締
付部位側から離間するに従い高さが漸次大きく形成され
た素材である特許請求の範囲第１項及び第２項に記載の
被接合部材のデッキ面間に介在するスペーサの設定方法
とこの方法を利用したスペーサの形成方法。 ５、前記素材は、前記ボルト締付部位側から離間するに
従い押圧変形が漸次困難な状態になるべく前記ボルト締
付部位側から離間するに従い密度が漸次大に変化した素
材である特許請求の範囲第１項及び第２項に記載の被接
合部材のデッキ面間に介在するスペーサの設定方法とこ
の方法を利用したスペーサの形成方法。 ６、前記素材は、前記ボルト締付部位側から離間するに
従い押圧変形が漸次困難な状態になるべく前記ボルト締
付部位側から離間するに従い硬度が漸次大に変化した素
材である特許請求の範囲第１項及び第２項に記載の被接
合部材のデッキ面間に介在するスペーサの設定方法とこ
の方法を利用したスペーサの形成方法。 ７、前記素材は、前記ボルト締付部位側から離間するに
従い押圧変形が漸次困難な状態になるべく前記ボルト締
付部位側から離間するに従い材質が漸次変化する素材で
ある特許請求の範囲第１項及び第２項に記載の被接合部
材のデッキ面間に介在するスペーサの設定方法とこの方
法を利用したスペーサの形成方法。[Scope of Claims] 1. A material is interposed between the deck surfaces of the members to be joined, and the material is structured so that deformation by pressure becomes gradually difficult as the distance from the bolt tightening region of the members to be joined increases, and then this material is A method for setting a spacer interposed between deck surfaces of members to be joined, the method comprising: deforming the spacer by a bolt tightening force to set the shape of the spacer. 2. A material is interposed between the deck surfaces of the members to be welded, and the material is structured so that deformation by pressure becomes progressively more difficult as the distance from the bolt tightening area of the members to be welded increases, and then this material is applied with bolt tightening force. A method for forming a spacer interposed between deck surfaces of members to be joined, the method comprising deforming the material and forming the deformed material to function as a spacer or as a mold for manufacturing the spacer. 3. The material is a material whose width gradually increases as the distance from the bolt tightening region increases, so that pressing deformation becomes progressively more difficult as the material moves away from the bolt tightening region. A method for setting a spacer interposed between deck surfaces of members to be joined according to Items 1 and 2, and a method for forming a spacer using this method. 4. The material is a material whose height gradually increases as the distance from the bolt tightening region increases, so that pressing deformation becomes progressively more difficult as the material moves away from the bolt tightening region. A method for setting a spacer interposed between deck surfaces of members to be joined according to items 1 and 2, and a method for forming a spacer using this method. 5. The material is a material whose density gradually increases as the distance from the bolt tightening region increases so that pressing deformation becomes progressively more difficult as the material moves away from the bolt tightening region. A method for setting a spacer interposed between deck surfaces of members to be joined according to Items 1 and 2, and a method for forming a spacer using this method. 6. The material is a material whose hardness gradually increases as the distance from the bolt tightening region increases so that pressing deformation becomes progressively more difficult as the material moves away from the bolt tightening region. A method for setting a spacer interposed between deck surfaces of members to be joined according to Items 1 and 2, and a method for forming a spacer using this method. 7. The material is a material whose quality gradually changes as it moves away from the bolt tightening area so that it becomes progressively more difficult to deform under pressure as it moves away from the bolt tightening area. and a method for setting a spacer interposed between deck surfaces of members to be joined according to item 2, and a method for forming a spacer using this method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61067119A JPH065108B2 (en) | 1986-03-27 | 1986-03-27 | Metal gasket having spacers formed by pressing deformation between deck surfaces of members to be joined |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61067119A JPH065108B2 (en) | 1986-03-27 | 1986-03-27 | Metal gasket having spacers formed by pressing deformation between deck surfaces of members to be joined |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62224772A true JPS62224772A (en) | 1987-10-02 |
| JPH065108B2 JPH065108B2 (en) | 1994-01-19 |
Family
ID=13335689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61067119A Expired - Lifetime JPH065108B2 (en) | 1986-03-27 | 1986-03-27 | Metal gasket having spacers formed by pressing deformation between deck surfaces of members to be joined |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH065108B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0161444U (en) * | 1987-10-15 | 1989-04-19 | ||
| JPH0291266U (en) * | 1988-12-28 | 1990-07-19 | ||
| JPH0632829U (en) * | 1992-10-01 | 1994-04-28 | 石川ガスケット株式会社 | Head gasket |
| US5618049A (en) * | 1993-06-04 | 1997-04-08 | Japan Metal Gasket Co., Ltd. | Metallic gasket |
| US6506503B1 (en) | 1998-07-29 | 2003-01-14 | Miba Gleitlager Aktiengesellschaft | Friction bearing having an intermediate layer, notably binding layer, made of an alloy on aluminium basis |
| EP0747614B2 (en) † | 1995-06-07 | 2003-01-15 | ElringKlinger AG | Metallic cylinder head gasket |
| JP2018529903A (en) * | 2015-09-25 | 2018-10-11 | フェデラル−モーグル・リミテッド・ライアビリティ・カンパニーＦｅｄｅｒａｌ−Ｍｏｇｕｌ Ｌｌｃ | Static gasket and construction method thereof |
| KR20210135253A (en) * | 2019-03-14 | 2021-11-12 | 이글버그만 저머니 게엠베하 운트 코. 카게 | Marine Slide Ring Seal Arrangement |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5829329U (en) * | 1981-08-20 | 1983-02-25 | 多田 豊也 | magnetic toothbrush |
| JPS5848959U (en) * | 1981-09-29 | 1983-04-02 | 日本メタルガスケツト株式会社 | Head gasket for internal combustion engines |
| JPS59188955U (en) * | 1983-06-02 | 1984-12-14 | 石川ガスケツト株式会社 | metal gasket |
-
1986
- 1986-03-27 JP JP61067119A patent/JPH065108B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5829329U (en) * | 1981-08-20 | 1983-02-25 | 多田 豊也 | magnetic toothbrush |
| JPS5848959U (en) * | 1981-09-29 | 1983-04-02 | 日本メタルガスケツト株式会社 | Head gasket for internal combustion engines |
| JPS59188955U (en) * | 1983-06-02 | 1984-12-14 | 石川ガスケツト株式会社 | metal gasket |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0161444U (en) * | 1987-10-15 | 1989-04-19 | ||
| JPH0291266U (en) * | 1988-12-28 | 1990-07-19 | ||
| JPH0632829U (en) * | 1992-10-01 | 1994-04-28 | 石川ガスケット株式会社 | Head gasket |
| US5618049A (en) * | 1993-06-04 | 1997-04-08 | Japan Metal Gasket Co., Ltd. | Metallic gasket |
| US5713580A (en) * | 1993-06-04 | 1998-02-03 | Japan Metal Gasket Co., Ltd. | Metallic gasket |
| EP0747614B2 (en) † | 1995-06-07 | 2003-01-15 | ElringKlinger AG | Metallic cylinder head gasket |
| US6506503B1 (en) | 1998-07-29 | 2003-01-14 | Miba Gleitlager Aktiengesellschaft | Friction bearing having an intermediate layer, notably binding layer, made of an alloy on aluminium basis |
| JP2018529903A (en) * | 2015-09-25 | 2018-10-11 | フェデラル−モーグル・リミテッド・ライアビリティ・カンパニーＦｅｄｅｒａｌ−Ｍｏｇｕｌ Ｌｌｃ | Static gasket and construction method thereof |
| US10830356B2 (en) | 2015-09-25 | 2020-11-10 | Tenneco Inc. | Static gasket and method of construction thereof |
| KR20210135253A (en) * | 2019-03-14 | 2021-11-12 | 이글버그만 저머니 게엠베하 운트 코. 카게 | Marine Slide Ring Seal Arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH065108B2 (en) | 1994-01-19 |
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