JPH0322540Y2 - - Google Patents
Info
- Publication number
- JPH0322540Y2 JPH0322540Y2 JP1988053125U JP5312588U JPH0322540Y2 JP H0322540 Y2 JPH0322540 Y2 JP H0322540Y2 JP 1988053125 U JP1988053125 U JP 1988053125U JP 5312588 U JP5312588 U JP 5312588U JP H0322540 Y2 JPH0322540 Y2 JP H0322540Y2
- Authority
- JP
- Japan
- Prior art keywords
- gasket
- fluid hole
- seal
- periphery
- metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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- Gasket Seals (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は、金属積層形ガスケツトに関するもの
であり、さらに詳しくは、内燃機関のシリンダヘ
ツドガスケツトとして用いるのに有効な金属積層
形ガスケツトに関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a metal laminated gasket, and more specifically, to a metal laminated gasket that is effective for use as a cylinder head gasket of an internal combustion engine. It is.
［従来の技術］
従来、内燃機関のシリンダブロツクとシリンダ
ヘツドとの間に装着される金属積層形のシリンダ
ヘツドガスケツトは、複数枚の金属板を積層し、
それらの金属板のうちの両面の外板で中板を包合
させることにより組立てられている。このような
ガスケツトは、燃焼室穴シール部や他の流体穴の
周縁の流体穴シール部における金属板の積層厚さ
（各金属板の厚さ合計）を平坦部よりも厚く形成
することにより、その部分に締付け時の面圧を集
中させ、シール効果を高めるようにしている。[Prior Art] Conventionally, a metal laminated type cylinder head gasket installed between a cylinder block and a cylinder head of an internal combustion engine is made by laminating a plurality of metal plates.
It is assembled by wrapping the middle plate with the outer plates on both sides of these metal plates. This kind of gasket is made by forming the laminated thickness of the metal plates (the total thickness of each metal plate) in the combustion chamber hole seal part and the fluid hole seal part around the periphery of other fluid holes to be thicker than in the flat part. The surface pressure during tightening is concentrated on that part to enhance the sealing effect.
しかしながら、特に、シリンダヘツドガスケツ
トなどにおいては、内燃機関の運転に伴つてシリ
ンダヘツドの外周部に大きな振動が発生し、それ
に伴つて大きな繰返し荷重が作用するため、その
部分の穴シール部にへたりが生じるという問題が
あつた。 However, especially in cylinder head gaskets, large vibrations occur on the outer periphery of the cylinder head as the internal combustion engine operates, and as a result large repeated loads act on the cylinder head. There was a problem that the problem occurred.
［考案が解決しようとする課題］
本考案の技術的課題は、複数枚の金属板を積層
することにより構成される金属積層形ガスケツト
において、簡単な手段によりシリンダヘツド外周
部に発生する大きな振動を減少させて、上記流体
穴シール部にへたりが生じるのを防ぎ、該穴シー
ル部の耐久性を高めることにある。[Problem to be solved by the invention] The technical problem of the invention is to solve the large vibration generated on the outer circumference of the cylinder head by simple means in a metal laminated gasket constructed by laminating multiple metal plates. The object of the present invention is to prevent the fluid hole sealing portion from becoming sag by reducing the amount of water, thereby increasing the durability of the hole sealing portion.
［課題を解決するための手段］
上記課題を解決するため、本考案のガスケツト
は、数枚の金属板を積層してなる金属積層形ガス
ケツトにおいて、ガスケツト周辺部に位置する流
体穴のガスケツト外周縁側の部分に、積層金属板
における一方の外板周縁に設けた突片を折り返す
ことにより、締付け時に上記流体穴の内周縁の穴
シール部に適度な締付け力を作用させるに必要な
厚さを持つシール保護部を形成し、このシール保
護部を形成する上記突片の内側縁を、上記流体穴
シール部の周縁に沿う弧状に形成することにより
構成される。[Means for Solving the Problems] In order to solve the above problems, the gasket of the present invention is a metal laminated type gasket formed by laminating several metal plates. By folding back the projecting piece provided on the periphery of one of the outer plates of the laminated metal plate, the part has a thickness necessary to apply an appropriate tightening force to the hole sealing portion of the inner periphery of the fluid hole during tightening. A seal protection portion is formed, and the inner edge of the protrusion forming the seal protection portion is formed in an arc shape along the periphery of the fluid hole seal portion.
［作用］
金属積層形ガスケツトの周辺部に位置する流体
穴のガスケツト外周縁側の部分に設けたシール保
護部は、ガスケツトの締付け時に上記流体穴の穴
シール部に適度な締付け力が作用するように形成
しているので、流体穴シール部には過度の締付け
力が集中作用するようなことがなく、それにより
内燃機関の運転に伴つてシリンダヘツドの外周部
に発生する大きな振動の影響を受けることも少な
くなり、従つて該穴シール部のへたりが防止さ
れ、その耐久性が高められる。[Function] The seal protection part provided on the gasket outer peripheral edge side of the fluid hole located at the periphery of the metal laminated gasket is designed to apply an appropriate tightening force to the hole seal part of the fluid hole when the gasket is tightened. Because of this, excessive tightening force is not concentrated on the fluid hole seal, and this prevents it from being affected by the large vibrations that occur on the outer periphery of the cylinder head as the internal combustion engine operates. Therefore, the hole seal portion is prevented from sagging, and its durability is increased.
また、シール保護部を形成する突片の内側縁
を、上記流体穴シール部の周縁に沿う弧状に形成
し、シール保護部が流体穴シール部を取囲むよう
に形成しているので、シールの保護作用が極めて
効果的に機能する。 Further, the inner edge of the protruding piece forming the seal protection part is formed in an arc shape along the periphery of the fluid hole seal part, and the seal protection part is formed so as to surround the fluid hole seal part, so that the seal The protective action works very effectively.
［実施例］
第１図及び第２図は、本考案の実施例の内燃機
関用金属積層形シリンダヘツドガスケツトを示
し、このガスケツトは、上下の外板１，２と、そ
れらの間に包合された単数または複数の中板３，
４とを備えている。[Embodiment] Figures 1 and 2 show a metal laminated cylinder head gasket for an internal combustion engine according to an embodiment of the present invention. one or more intermediate plates 3 combined;
4.
上記ガスケツトを構成する積層金属板（外板及
び中板）は、燃焼室穴６の周縁に穴シール部７を
備えると共に、ガスケツト周辺部に位置する流体
穴８の周縁に流体穴シール部９を備え、また、シ
リンダブロツクとシリンダヘツドとを締付けるた
めの締付けボルトを挿通するボルト穴１０の複数
を適当な位置に備えている。さらに、ガスケツト
周辺部に位置する流体穴８の該周辺部側には、後
述するシール保護部１１を設けている。 The laminated metal plates (outer plate and middle plate) constituting the gasket are provided with a hole seal portion 7 on the periphery of the combustion chamber hole 6, and a fluid hole seal portion 9 on the periphery of the fluid hole 8 located in the periphery of the gasket. It is also provided with a plurality of bolt holes 10 at appropriate positions through which tightening bolts for tightening the cylinder block and cylinder head are inserted. Further, a seal protection portion 11, which will be described later, is provided on the peripheral side of the fluid hole 8 located around the gasket.
外板１，２及び中板３，４自体は、ガスケツト
の性能に応じて適宜金属板を選択使用することが
でき、上記穴シール部９においては、第２図に詳
細に示すように、外板１，２及び中板４の内縁に
Ｕ字状に折曲した金属環（グロメツト）１３を取
付けている。そして、上記穴シール部９、即ち金
属環１３を取付けた外板１，２及び中板４の内縁
部分の板厚合計T1は、積層金属板の平坦部にお
ける板厚合計T0と同じか、それよりも厚くなる
ように形成される。 For the outer plates 1, 2 and the middle plates 3, 4, appropriate metal plates can be selected and used depending on the performance of the gasket. A metal ring (grommet) 13 bent into a U-shape is attached to the inner edges of the plates 1, 2 and the middle plate 4. Is the total plate thickness T 1 of the inner edge portions of the outer plates 1, 2 and the middle plate 4 to which the hole seal portion 9, that is, the metal ring 13 is attached, the same as the total plate thickness T 0 of the flat portion of the laminated metal plate? , is formed to be thicker than that.
この流体穴シール部は、第３図に示すように、
上記金属環（グロメツト）１３を取付けない構造
とすることもできる。この場合にも、流体穴シー
ル部９の板厚合計T1と積層金属板の平坦部にお
ける板厚合計T0とは、上記と同様な関係を保つ
ように形成される。 As shown in Fig. 3, this fluid hole seal part is
It is also possible to have a structure in which the metal ring (grommet) 13 is not attached. Also in this case, the total plate thickness T 1 of the fluid hole seal portion 9 and the total plate thickness T 0 of the flat portion of the laminated metal plate are formed so as to maintain the same relationship as described above.
また、第４図に示す実施例のように、流体穴８
の内周縁にゴムリング１２を嵌着して穴シール部
９を形成することもできる。 In addition, as in the embodiment shown in FIG.
The hole seal portion 9 can also be formed by fitting a rubber ring 12 to the inner peripheral edge of the hole.
なお、第３図及び第４図においては、第２図の
実施例と同一または相当部分に同一の符号を付し
ている。 In FIGS. 3 and 4, the same or corresponding parts as in the embodiment shown in FIG. 2 are given the same reference numerals.
一方、ガスケツト周辺部に位置する流体穴８の
ガスケツト外周縁側の部分に設けたシール保護部
１１は、一方の外板２に突設した突片１５を他方
の外板１上に折り返して、外板１，２及び中板
３，４等を相互に止着することにより構成し、こ
の部分の板厚合計T2を、積層金属板の平坦部に
おける板厚合計T0よりも厚く形成している。ま
た、このシール保護部１１における積層金属板の
板厚合計は、ガスケツトの締付け時において上記
流体穴８の内周縁の穴シール部９に適度な締付け
力を作用させるに必要な厚さを持つように形成さ
れる。 On the other hand, the seal protection part 11 provided on the gasket outer periphery side of the fluid hole 8 located in the gasket periphery is made by folding the protruding piece 15 protruding from one outer plate 2 onto the other outer plate 1, and then It is constructed by fixing plates 1, 2, middle plates 3, 4, etc. to each other, and the total thickness T 2 of this part is made thicker than the total thickness T 0 of the flat part of the laminated metal plate. There is. The total thickness of the laminated metal plates in this seal protection portion 11 is such that it has a thickness necessary to apply an appropriate tightening force to the hole seal portion 9 on the inner peripheral edge of the fluid hole 8 when tightening the gasket. is formed.
流体穴シール部９よりも上記シール保護部１１
を厚く形成する場合は、締付け時における穴シー
ル部９の見掛け上の厚さを保つてシール効果を高
める必要があり、そのため、第２図及び第３図に
示すように、穴シール部９における中等にビード
部１８を設けることができる。 The seal protection portion 11 is larger than the fluid hole seal portion 9.
When forming the hole seal part 9 thickly, it is necessary to maintain the apparent thickness of the hole seal part 9 during tightening to enhance the sealing effect. A bead portion 18 can be provided in the middle.
なお、シール条件によつては、上記シール保護
部１１における積層厚さT2が、必ずしも流体穴
シール部９における積層厚さT1より大きくなる
とは限らない。 Note that depending on the sealing conditions, the laminated thickness T 2 in the seal protection portion 11 is not necessarily larger than the laminated thickness T 1 in the fluid hole seal portion 9 .
而して、上記シール保護部１１を形成する突片
１５の内側縁１６は、断面円形の流体穴８の周囲
における円環状の流体穴シール部９の周縁に沿つ
て、該穴シール部９と同心の円弧状に形成してい
る。この場合に、上記突片１５の巾ｗは、流体穴
８の径と同程度、またはそれより大きいことが望
ましく、それにより突片１５の内側縁１６で流体
穴８の周囲を比較的大きく取囲むように形成でき
るが、一般的には、少なくとも流体穴８の周囲の
１／４程度を取囲むように形成するのが適切である。 The inner edge 16 of the protruding piece 15 forming the seal protection portion 11 is attached to the hole seal portion 9 along the circumference of the annular fluid hole seal portion 9 around the fluid hole 8 having a circular cross section. It is formed in a concentric arc shape. In this case, the width w of the protrusion 15 is desirably the same as or larger than the diameter of the fluid hole 8, so that the inner edge 16 of the protrusion 15 has a relatively large circumference around the fluid hole 8. Although it can be formed so as to surround the fluid hole 8, it is generally appropriate to form it so as to surround at least about 1/4 of the circumference of the fluid hole 8.
なお、上記突片１５の内側縁は、第５図に示す
ように、流体穴シール部９の周縁に沿う折線状に
形成することもできる。 Note that the inner edge of the protruding piece 15 can also be formed in a broken line shape along the periphery of the fluid hole sealing part 9, as shown in FIG.
上記構成を有する金属積層形ガスケツトにおい
ては、積層金属板の外周縁に設けたシール保護部
１１が、ガスケツトの締付け時に流体穴シール部
９に適度な締付け力を作用させるに必要な厚さを
有しているので、その締付け時に穴シール部９に
過度の締付け力が作用しないばかりでなく、内燃
機関の運転に伴つてシリンダヘツドの外周部に発
生する大きな振動の影響を受けることも少なくな
り、従つて穴シール部のへたりが防止され、その
耐久性が高められる。 In the metal laminated gasket having the above configuration, the seal protection portion 11 provided on the outer periphery of the laminated metal plate has a thickness necessary to apply an appropriate tightening force to the fluid hole seal portion 9 when the gasket is tightened. Therefore, not only does excessive tightening force not act on the hole seal portion 9 when tightening it, but it is also less affected by the large vibrations that occur on the outer circumference of the cylinder head as the internal combustion engine operates. Therefore, the hole seal portion is prevented from sagging and its durability is increased.
しかも、一般的に、穴シール部のへたりは、締
付けボルトよりも外側のガスケツトの周縁部に近
い部分で起こり易く、そのためシール保護部１１
を外板２周縁の折返し用突片１５によつて形成す
ることは、非常に簡単で有効な手段である。 Moreover, in general, the hole seal part tends to sag in a part closer to the peripheral edge of the gasket on the outside than the tightening bolt, and therefore, the seal protection part 11
It is a very simple and effective means to form the folding protrusion 15 on the peripheral edge of the outer plate 2.
また、特にシール保護部１１が流体穴シール部
９を取囲むような形状に形成されているので、シ
ールの保護作用が一層効果的に機能することにな
る。 Moreover, since the seal protection part 11 is formed in a shape that surrounds the fluid hole seal part 9, the protection effect of the seal functions more effectively.
さらに、上記シール保護部１１においては、突
片１５の折り返しにより外板１，２及び中板３，
４が止束固定されるので、上記穴シール部９の保
護と同時に、ガスケツト外周端縁の不揃い、変形
及び精度低下などが解消される。 Furthermore, in the seal protection part 11, the outer plates 1 and 2 and the middle plate 3 are
4 is fixed in a fixed manner, the hole seal portion 9 is protected, and at the same time, irregularities, deformation, and deterioration in accuracy of the outer circumferential edge of the gasket are eliminated.
第６図の実施例は、上述した実施例の場合と同
様に、ガスケツト周辺部に位置する流体穴２８の
ガスケツト外周縁側の部分に、突片３５を折り返
して形成したシール保護部３１を設け、このシー
ル保護部３１を形成する上記突片３５の内側縁３
６を、流体穴シール部２９の周縁に沿う弧状に形
成しているが、特に、上記流体穴２８を積層金属
板の周縁に突設した突出状の流体穴形成部２０に
設け、流体穴２８の周囲を複数の突片３５により
広い範囲にわたつて取り囲むように形成してい
る。従つて、流体穴シール部２９のへたりが一層
効果的に防止され、その耐久性が高められる。こ
の実施例のその他の構成及び作用は、上述した実
施例の場合と実質的に変るところがない。 In the embodiment shown in FIG. 6, a seal protection portion 31 formed by folding back a projecting piece 35 is provided on the outer peripheral edge side of the gasket of the fluid hole 28 located in the periphery of the gasket, as in the embodiment described above. The inner edge 3 of the protrusion 35 forming this seal protection portion 31
6 is formed in an arc shape along the periphery of the fluid hole sealing portion 29. In particular, the fluid hole 28 is provided in the protruding fluid hole forming portion 20 protruding from the periphery of the laminated metal plate, and the fluid hole 28 is formed so as to be surrounded over a wide range by a plurality of protrusions 35. Therefore, the fluid hole seal portion 29 is more effectively prevented from sagging, and its durability is increased. The rest of the structure and operation of this embodiment are substantially the same as those of the embodiment described above.
［考案の効果］
以上に詳述した本考案によれば、複数枚の金属
板を積層することにより構成される金属積層形ガ
スケツトにおいて、積層金属板の外周縁に外板の
突片の折り返しという簡単な手段でシール保護部
を設け、しかもそのシール保護部を形成する突片
の内側縁を、流体穴シール部の周縁に沿う弧状に
形成したので、上記穴シール部にへたりが生じる
のを効果的に防ぎ、穴シール部の耐久性を高める
ことができる。[Effects of the invention] According to the invention described in detail above, in a metal laminated gasket constructed by laminating a plurality of metal plates, the outer peripheral edge of the laminated metal plate is folded with a protrusion of the outer plate. The seal protection part is provided by a simple means, and the inner edge of the protrusion that forms the seal protection part is formed in an arc shape along the periphery of the fluid hole seal part, so that it is possible to prevent the hole seal part from sagging. It can effectively prevent damage and increase the durability of the hole seal part.
第１図は本考案に係る金属積層形ガスケツトの
実施例を示す部分平面図、第２図は第１図のＡ−
Ａ位置で破断して示す要部斜視図、第３図及び第
４図はそれぞれ異なる実施例についての同様な位
置で破断した要部の斜視図及び断面図、第５図は
突片の内側縁形状の変形例を示す要部平面図、第
６図はさらに他の実施例の部分平面図である。
１，２…外板、３…中板、８，２８…流体穴、
９，２９…流体穴シール部、１１，３１…シール
保護部、１５，３５…突片、１６，３６…内側
縁。
FIG. 1 is a partial plan view showing an embodiment of the metal laminated gasket according to the present invention, and FIG.
A perspective view of the main part broken at position A, FIGS. 3 and 4 are perspective views and sectional views of the main part broken at the same position of different embodiments, and FIG. 5 shows the inner edge of the protrusion. FIG. 6 is a partial plan view of still another embodiment. 1, 2... Outer plate, 3... Middle plate, 8, 28... Fluid hole,
9, 29... Fluid hole seal portion, 11, 31... Seal protection portion, 15, 35... Projection piece, 16, 36... Inner edge.
Claims (1)
ツトにおいて、 ガスケツト周辺部に位置する流体穴のガスケツ
ト外周縁側の部分に、積層金属板における一方の
外板周縁に設けた突片を折り返すことにより、締
付け時に上記流体穴の内周縁の穴シール部に適度
な締付け力を作用させるに必要な厚さを持つシー
ル保護部を形成し、 このシール保護部を形成する上記突片の内側縁
を、上記流体穴シール部の周縁に沿う弧状に形成
した、 ことを特徴とする金属積層形ガスケツト。[Scope of Claim for Utility Model Registration] In a metal laminated gasket made by laminating several metal plates, a fluid hole located at the periphery of the gasket on the outer peripheral edge side of the gasket, and one outer plate peripheral edge of the laminated metal plate. By folding back the protrusion provided, a seal protection portion is formed that has a thickness necessary to apply an appropriate tightening force to the hole seal portion on the inner peripheral edge of the fluid hole during tightening, and this seal protection portion is formed. A metal laminated gasket characterized in that the inner edge of the protruding piece is formed in an arc shape along the periphery of the fluid hole sealing portion.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988053125U JPH0322540Y2 (en) | 1988-04-20 | 1988-04-20 | |
| US07/302,535 US5082298A (en) | 1988-02-01 | 1989-01-26 | Steel laminate gasket with seal protecting member |
| US07/698,707 US5131668A (en) | 1988-02-01 | 1991-05-13 | Steel laminate gasket with seal protecting member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988053125U JPH0322540Y2 (en) | 1988-04-20 | 1988-04-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01157257U JPH01157257U (en) | 1989-10-30 |
| JPH0322540Y2 true JPH0322540Y2 (en) | 1991-05-16 |
Family
ID=31279121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988053125U Expired JPH0322540Y2 (en) | 1988-02-01 | 1988-04-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0322540Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6964890B1 (en) | 1992-03-17 | 2005-11-15 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method for forming the same |
| US7329906B2 (en) | 1992-08-27 | 2008-02-12 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method for forming the same |
| US7368367B2 (en) | 1991-09-21 | 2008-05-06 | Semiconductor Energy Laboratory Co., Ltd. | Method for forming a semiconductor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5620045U (en) * | 1979-07-23 | 1981-02-21 | ||
| JPH0756240B2 (en) * | 1985-05-09 | 1995-06-14 | 日本メタルガスケット株式会社 | Metal gasket |
-
1988
- 1988-04-20 JP JP1988053125U patent/JPH0322540Y2/ja not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7368367B2 (en) | 1991-09-21 | 2008-05-06 | Semiconductor Energy Laboratory Co., Ltd. | Method for forming a semiconductor |
| US6964890B1 (en) | 1992-03-17 | 2005-11-15 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method for forming the same |
| US7564057B1 (en) | 1992-03-17 | 2009-07-21 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device having an aluminum nitride film |
| US7329906B2 (en) | 1992-08-27 | 2008-02-12 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method for forming the same |
| US7416907B2 (en) | 1992-08-27 | 2008-08-26 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method for forming the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01157257U (en) | 1989-10-30 |
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