JPH0239624B2 - - Google Patents
Info
- Publication number
- JPH0239624B2 JPH0239624B2 JP58157446A JP15744683A JPH0239624B2 JP H0239624 B2 JPH0239624 B2 JP H0239624B2 JP 58157446 A JP58157446 A JP 58157446A JP 15744683 A JP15744683 A JP 15744683A JP H0239624 B2 JPH0239624 B2 JP H0239624B2
- Authority
- JP
- Japan
- Prior art keywords
- grommet
- cylinder head
- gasket
- head gasket
- gasket body
- 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 - Lifetime
Links
- 239000002184 metal Substances 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/12—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
- F16J15/121—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement
- F16J15/122—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement generally parallel to the surfaces
- F16J15/123—Details relating to the edges of the packing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Description
【発明の詳細な説明】
〔発明の属する技術分野〕
本発明は、エンジン用シリンダヘツドガスケツ
トの構造に関する。特に、エンジン用シリンダヘ
ツドガスケツトのグロメツトの保持機構に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention relates to the structure of a cylinder head gasket for an engine. In particular, it relates to a grommet holding mechanism for a cylinder head gasket for an engine.
第１図はシリンダヘツドガスケツトの斜視図、
第２図は第１図に示すシリンダヘツドガスケツト
のＡ−Ａ断面図である。
Figure 1 is a perspective view of the cylinder head gasket.
FIG. 2 is a sectional view taken along line A-A of the cylinder head gasket shown in FIG.
従来、シリンダヘツドガスケツト１はあらかじ
め圧縮リング４を挟持したグロメツト３をガスケ
ツト本体２の各開孔部に挟持して形成されるが、
ガスケツト本体２の各開孔部の内径に対して圧縮
リング４の外径を大きくとれないために、グロメ
ツト３はその外周フランジにガスケツト本体２の
各開孔部の円周縁部がわずかに喰い込んだ程度で
取付けられている。従つて、グロメツト３に挟持
された圧縮リング４の外周とガスケツト本体２の
各開口部の内周との間には間〓を生じており、孔
の中心に対して偏芯しやすい状態にある。 Conventionally, the cylinder head gasket 1 is formed by sandwiching a grommet 3 holding a compression ring 4 in each opening of the gasket body 2 in advance.
Since the outer diameter of the compression ring 4 cannot be made larger than the inner diameter of each opening in the gasket body 2, the circumferential edge of each opening in the gasket body 2 slightly bites into the outer peripheral flange of the grommet 3. It is installed to a certain extent. Therefore, there is a gap between the outer periphery of the compression ring 4 held between the grommet 3 and the inner periphery of each opening of the gasket body 2, which tends to be eccentric with respect to the center of the hole. .
このような構成のシリンダヘツドガスケツト１
をシリンダライナ上に上方から押圧すると、グロ
メツト３の偏芯によつてこのグロメツト３の外周
にあるＵ字溝にガスケツト本体２の各開孔部の内
周が一方においては深く入り込むが、その反対側
においては外れようとするために切れを生じた
り、またずれた状態で取付けられることによつ
て、各開孔部の円周上を均一に押しつけなければ
ならない本来の目的に反して、円周上の場所によ
つて面圧が異なるほどの問題を生じることがあ
る。このようなことからシリンダヘツドガスケツ
ト１の取付けには最新の注意と多くの時間を必要
とする欠点を有している。 Cylinder head gasket 1 with such a configuration
When pressed onto the cylinder liner from above, the inner periphery of each opening in the gasket body 2 deeply enters the U-shaped groove on the outer periphery of the grommet 3 due to the eccentricity of the grommet 3, but on the other hand, If the side part tries to come off, it may break, or if it is installed in a misaligned state, the circumferential area may be damaged, contrary to the original purpose of pressing uniformly over the circumference of each opening. This can cause problems such that the surface pressure varies depending on the location on the top. For this reason, the installation of the cylinder head gasket 1 has the drawback of requiring great care and a lot of time.
さらに将来においては、自動組立の可能性が十
分考えられており、上記の問題が解決されない限
り自動化は不可能である。 Further, in the future, the possibility of automatic assembly is fully considered, and automation will not be possible unless the above problems are solved.
本発明者は、従来のシリンダヘツドガスケツト
グロメツト外周形状の一部を変更し、工程を追加
することによつてこれらの問題を解決できること
に着目し本発明を完成するに至つた。 The present inventor has completed the present invention by noting that these problems can be solved by partially changing the outer peripheral shape of a conventional cylinder head gasket grommet and adding a process.
本発明は、ガスケツト本体にグロメツトを確実
にその所定位置に固定させ、取付時間を短縮し、
面圧の均一化をはかり、自動組立を可能にするシ
リンダヘツドガスケツトを提供することを目的と
する。
The present invention reliably fixes the grommet in its predetermined position on the gasket body, reduces installation time, and
The object of the present invention is to provide a cylinder head gasket that equalizes surface pressure and enables automatic assembly.
本発明は、シリンダボアの周囲に金属製グロメ
ツトと、この金属製グロメツトの内側に包みこむ
ように配置された金属製圧縮リングとを備えたエ
ンジン用シリンダヘツドガスケツトにおいて、上
記金属製グロメツトの上端面が３箇所以上でガス
ケツト本体上面に接するように構成され、この金
属製グロメツトの下端面の外径は上記シリンダボ
アの内径を越えず、その内径との間に間〓が存在
する形状であり、上記ガスケツト本体面に接する
位置で、上記金属性グロメツトの上端面の一部が
上記ガスケツト本体に喰い込み固定された構造を
特徴とする。
The present invention provides a cylinder head gasket for an engine that includes a metal grommet around a cylinder bore and a metal compression ring disposed so as to wrap around the inside of the metal grommet, in which the upper end surface of the metal grommet is The outer diameter of the lower end surface of this metal grommet does not exceed the inner diameter of the cylinder bore, and there is a gap between the outer diameter and the inner diameter of the cylinder bore. The gasket is characterized by a structure in which a part of the upper end surface of the metal grommet is bitten into and fixed to the gasket body at a position in contact with the main body surface.
金属製グロメツトの上端面の径がガスケツト本
体のシリンダボアに対応する孔の内径を越え、下
端面の径がその孔の内径を越えず間〓を設けた形
状に構成されているために、下端面は孔に挿通さ
れ上端面はガスケツト本体の上面に当接して確実
に組み付けられる。この状態で金属製グロメツト
の上端面に型打ち加工あるいは曲げ加工を施すこ
とにより、金属製グロメツトが高い精度で堅固に
ガスケツト本体に固定される。
The diameter of the upper end face of the metal grommet exceeds the inner diameter of the hole corresponding to the cylinder bore of the gasket body, and the diameter of the lower end face does not exceed the inner diameter of the hole, leaving a gap. is inserted into the hole, and the upper end surface abuts the upper surface of the gasket body to ensure secure assembly. By stamping or bending the upper end surface of the metal grommet in this state, the metal grommet is firmly fixed to the gasket body with high precision.
これにより、シリンダヘツドガスケツトをシリ
ンダライナに取付ける際の金属製グロメツトの外
れ、あるいはその外れに伴つて発生するガスケツ
ト本体の切れ、あるいはずれによる面圧の不均一
を取り除くことができるとともに、金属製グロメ
ツトをガスケツト本体に挟持する作業が軽減でき
る。したがつて、組み付け時間を短縮することが
でき、さらに高い精度で組み付けができるために
気密性を向上させることができ、自動組立を可能
にすることができる。 This eliminates uneven surface pressure caused by dislodgement of the metal grommet when installing the cylinder head gasket to the cylinder liner, or cuts or misalignment of the gasket body that occurs due to dislodgement, as well as The work of holding the grommet between the gasket body can be reduced. Therefore, the assembly time can be shortened, the assembly can be performed with higher precision, the airtightness can be improved, and automatic assembly can be made possible.
本発明の実施例を図面に基づいて詳しく説明す
る。
Embodiments of the present invention will be described in detail based on the drawings.
第３図は本発明における第一実施例グロメツト
の斜視図、第４図は本発明第一実施例グロメツト
の型打ち加工前の第１図に示すＢ部断面拡大図、
第５図は本発明第一実施例グロメツトの型打ち加
工後の第１図に示すＢ部断面拡大図、第６図は本
発明における第二実施例グロメツトの斜視図、第
７図は本発明第二実施例グロメツトの曲げ加工に
よる第１図に示すＢ部断面拡大図である。 FIG. 3 is a perspective view of a grommet according to the first embodiment of the present invention, and FIG. 4 is an enlarged cross-sectional view of section B shown in FIG. 1 before stamping of the grommet according to the first embodiment of the present invention.
FIG. 5 is an enlarged sectional view of section B shown in FIG. 1 after stamping of a grommet according to the first embodiment of the present invention, FIG. 6 is a perspective view of a grommet according to the second embodiment of the present invention, and FIG. 7 is a cross-sectional view of the grommet according to the second embodiment of the present invention. FIG. 2 is an enlarged cross-sectional view of section B shown in FIG. 1 after bending the grommet of the second embodiment.
本発明第一実施例シリンダヘツドガスケツトは
第３図および第４図に示すように、上端面がガス
ケツト本体のシリンダボアに対応する孔径よりも
大きい円弧状の４箇所の凸起部５ａを有し、下端
面がその孔の内径を越えず、若干の間〓を設けた
形状のグロメツト５と、このグロメツト５に挟持
された圧縮リング４と、上記グロメツト５を内設
し、凸起部５ａの下端面と面接触する芯金６を有
するガスケツト本体２によつて構成される。なお
グロメツト５の凸起部５ａは安定性を保つために
は３箇所以上備えればよく、その箇所数は必要に
応じて定めればよい。 As shown in FIGS. 3 and 4, the cylinder head gasket according to the first embodiment of the present invention has four arcuate convex portions 5a on the upper end surface which are larger than the diameter of the hole corresponding to the cylinder bore of the gasket body. , a grommet 5 whose lower end surface does not exceed the inner diameter of the hole and has a slight gap, a compression ring 4 held between the grommet 5, and the grommet 5 disposed inside the grommet 5. It is constituted by a gasket body 2 having a core bar 6 which is in surface contact with the lower end surface. In order to maintain stability, the grommet 5 may have three or more protrusions 5a, and the number of protrusions 5a may be determined as necessary.
このように構成されたシリンダヘツドガスケツ
トは、まずガスケツト本体２をパンチ７の逃げ孔
８ａを有するダイス８上に設置し、このガスケツ
ト本体２の所定の開孔部に圧縮リング４を挟持し
たグロメツト５を凸起部５ａの中心が上記ダイス
８の逃げ孔８ａの中心に一致するように挿通させ
て設置し、パンチ７で型打ち加工をする。型打ち
加工後の形状は、第５図に示すようにガスケツト
本体２内部にグロメツト５の凸起部５ａが型打ち
されて喰い込み固定される。同時に他の凸起部５
ａも型打ちされグロメツト５は正確な位置に固定
される。 In the cylinder head gasket constructed in this way, the gasket body 2 is first placed on the die 8 having the relief hole 8a of the punch 7, and a grommet with the compression ring 4 sandwiched in a predetermined opening of the gasket body 2 is inserted. 5 is inserted and installed so that the center of the convex portion 5a coincides with the center of the escape hole 8a of the die 8, and punched with a punch 7. The shape after stamping is as shown in FIG. 5, in which the protruding portion 5a of the grommet 5 is stamped into the inside of the gasket body 2 and is fixed by biting. At the same time, other convex portions 5
A is also stamped and the grommet 5 is fixed in an accurate position.
以上の型打ち加工により、すべてのグロメツト
５が固定されたシリンダヘツドガスケツト１は、
シリンダライナ状に設置する際に上記グロメツト
５のずれを生じることなく、そのためにガスケツ
ト本体２の切れが発生せず、円外周に均一な面圧
を得ることができる。 Through the above stamping process, the cylinder head gasket 1 with all the grommets 5 fixed is
When installed in the form of a cylinder liner, the grommet 5 does not shift and therefore the gasket body 2 does not break, making it possible to obtain a uniform surface pressure on the outer circumference.
次に、本発明第二実施例シリンダヘツドガスケ
ツトは、第６図および第７図に示すように、上端
面がガスケツト本体に設けられた孔径を越える台
形状の４箇所の凸起部１０ａを有し、下端面がそ
の孔径を越えない形状のグロメツト１０と、この
グロメツト１０に挟持された圧縮リング４と、上
記グロメツト１０を内設し、凸起部１０ａの下端
面と面接触する芯金６を有するガスケツト本体２
によつて構成されている。 Next, as shown in FIGS. 6 and 7, the cylinder head gasket according to the second embodiment of the present invention has four trapezoidal protrusions 10a whose upper end surface exceeds the diameter of the hole provided in the gasket body. a grommet 10 having a shape in which the lower end surface does not exceed the diameter of the hole, a compression ring 4 held between the grommet 10, and a core metal having the grommet 10 therein and in surface contact with the lower end surface of the convex portion 10a. Gasket body 2 having 6
It is composed of.
グロメツト１０の凸起部１０ａは第一実施例と
同じように安定性を保つために３箇所以上備えて
いればよく、その箇所数は必要に応じて定めれば
よい。 As in the first embodiment, the protrusions 10a of the grommet 10 may be provided at three or more locations in order to maintain stability, and the number of locations may be determined as necessary.
このように構成された第二実施例シリンダヘツ
ドガスケツト１は、ガスケツト本体２の所定の開
孔部に圧縮リング４を挟持したグロメツト１０を
凸起部１０ａが上面に位置するように挿通させて
設置し、パンチ１１で凸起部１０ａ上を突出する
ことによつて曲げ加工を施す。 In the cylinder head gasket 1 of the second embodiment constructed in this way, the grommet 10 holding the compression ring 4 is inserted into a predetermined opening of the gasket body 2 so that the protrusion 10a is located on the upper surface. Then, the punch 11 is used to protrude the top of the convex portion 10a to perform a bending process.
この曲げ加工後の形状は、ガスケツト本体２内
部にグロメツト１０の凸起部１０ａが曲げられて
喰い込み固着する。同時に他の凸起部１０ａも曲
げ加工されグロメツト１０は正確な位置に固定さ
れる。 The shape after this bending process is such that the convex portion 10a of the grommet 10 is bent and bitten into the inside of the gasket body 2 and is fixed. At the same time, the other convex portions 10a are also bent, and the grommet 10 is fixed at an accurate position.
以上の曲げ加工によりすべてのグロメツト１０
が固定されたシリンダヘツドガスケツト１は、シ
リンダライナ上に設置する際上記グロメツトのず
れを生じることなく、そのためにガスケツト本体
２の切れが発生せず、円外周に均一な面圧を得る
ことができ、第一実施例と同様の機能を果たすこ
とができる。 By the above bending process, all grommets 10
When the cylinder head gasket 1 is fixed, the grommet does not shift when installed on the cylinder liner, and therefore the gasket body 2 does not break, making it possible to obtain a uniform surface pressure on the outer circumference. It is possible to perform the same function as the first embodiment.
以上述べたように本発明によれば、ガスケツト
本体にグロメツトを挿通し一部を喰い込ませる構
造であることから必要とする精度以内に確実に固
定されたシリンダヘツドガスケツトが得られ、こ
のシリンダヘツドガスケツトをシリンダライナに
取付ける際のグロメツトの外れ、あるいはそのグ
ロメツトの外れに伴つて発生するガスケツト本体
の切れ、あるいはグロメツトのずれによる面圧の
不均一が取り除かれるとともに、グロメツトを挿
通し一部を喰い込ませるだけで従来のような複雑
な挟持する作業が軽減されることから組み付け時
間を短縮することができ、さらに高い精度で組み
付けができるためにシリンダの気密性を向上させ
ることができる。さらに、シリンダ本体の孔の内
径より小さいから、グロメツトを孔に落とし込む
ことができるため、工作作業の自動化が可能であ
り自動組立ができるなどの優れた効果がある。
As described above, according to the present invention, since the grommet is inserted into the gasket body and a part of the grommet is bitten, a cylinder head gasket that is securely fixed within the required accuracy can be obtained, and this cylinder head gasket can be fixed securely within the required accuracy. This eliminates uneven surface pressure due to grommet dislodgement when installing the head gasket to the cylinder liner, or cuts in the gasket body that occur due to the grommet dislodgement, or uneven surface pressure due to grommet misalignment. By simply biting in, the complicated clamping work required in the past can be reduced, reducing assembly time, and since assembly can be performed with higher precision, the airtightness of the cylinder can be improved. Furthermore, since the grommet is smaller than the inner diameter of the hole in the cylinder body, the grommet can be dropped into the hole, making it possible to automate machining work and achieve automatic assembly.
第１図は従来例のシリンダヘツドガスケツトの
斜視図。第２図は第１図に示す従来例のシリンダ
ヘツドガスケツトのＡ−Ａ断面図。第３図は本発
明第一実施例グロメツトの斜視図。第４図は本発
明第一実施例グロメツトの型打ち加工前の一部断
面拡大図。第５図は本発明第一実施例グロメツト
の型打ち加工後の一部断面拡大図。第６図は本発
明第二実施例グロメツトの斜視図。第７図は本発
明第二実施例グロメツトの曲げ加工後の一部断面
拡大図。
１……シリンダヘツドガスケツト、２……ガス
ケツト本体、３，５，１０……グロメツト、４…
…圧縮リング、７，１１……パンチ、８……ダイ
ス、９……押え。
FIG. 1 is a perspective view of a conventional cylinder head gasket. FIG. 2 is a sectional view taken along line A-A of the conventional cylinder head gasket shown in FIG. FIG. 3 is a perspective view of a grommet according to the first embodiment of the present invention. FIG. 4 is an enlarged partial cross-sectional view of the grommet according to the first embodiment of the present invention before stamping. FIG. 5 is an enlarged partial cross-sectional view of the grommet according to the first embodiment of the present invention after stamping. FIG. 6 is a perspective view of a grommet according to a second embodiment of the present invention. FIG. 7 is an enlarged partial cross-sectional view of the grommet according to the second embodiment of the present invention after bending. 1... Cylinder head gasket, 2... Gasket body, 3, 5, 10... Grommet, 4...
...Compression ring, 7,11...Punch, 8...Dice, 9...Presser foot.
Claims (1)
配置された金属製圧縮リングと を備えたエンジン用シリンダヘツドガスケツトに
おいて、 上記金属製グロメツトの上端面が３箇所以上で
ガスケツト本体上面に接するように構成され、 この金属製グロメツトの下端面の外径は上記シ
リンダボアの内径を越えず、その内径との間に間
〓が存在する形状であり、 上記ガスケツト本体上面に接する位置で、 上記金属製グロメツトの上端面の一部が上記ガ
スケツト本体に喰い込み固定された構造を特徴す
る シリンダヘツドガスケツト。 ２ 喰い込み固定された構造が型打ち加工による
特許請求の範囲第１項に記載のシリンダヘツドガ
スケツト。 ３ 喰い込み固定された構造が曲げ加工による特
許請求の範囲第１項に記載のシリンダヘツドガス
ケツト。[Scope of Claims] 1. An engine cylinder head gasket including a metal grommet around a cylinder bore and a metal compression ring disposed so as to wrap around the metal grommet, comprising: The upper end surface is configured to touch the upper surface of the gasket body at three or more places, and the outer diameter of the lower end surface of this metal grommet does not exceed the inner diameter of the cylinder bore, and there is a gap between it and the inner diameter. A cylinder head gasket characterized by a structure in which a part of the upper end surface of the metal grommet is bitten into and fixed to the gasket body at a position in contact with the upper surface of the gasket body. 2. The cylinder head gasket according to claim 1, wherein the biting and fixed structure is formed by stamping. 3. The cylinder head gasket according to claim 1, wherein the biting and fixed structure is formed by bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15744683A JPS6050257A (en) | 1983-08-29 | 1983-08-29 | Cylinder head gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15744683A JPS6050257A (en) | 1983-08-29 | 1983-08-29 | Cylinder head gasket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6050257A JPS6050257A (en) | 1985-03-19 |
| JPH0239624B2 true JPH0239624B2 (en) | 1990-09-06 |
Family
ID=15649832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15744683A Granted JPS6050257A (en) | 1983-08-29 | 1983-08-29 | Cylinder head gasket |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6050257A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0329562Y2 (en) * | 1988-03-04 | 1991-06-24 | ||
| DE3827324A1 (en) * | 1988-08-11 | 1990-03-08 | Reinz Dichtungs Gmbh | FLAT SEAL |
| US5310197A (en) * | 1991-04-26 | 1994-05-10 | Caterpillar Inc. | Gasket construction |
| US5340126A (en) * | 1992-12-21 | 1994-08-23 | Dana Corporation | Flangeless fire ring holder |
| US5516120A (en) * | 1994-03-10 | 1996-05-14 | Dana Corporation | Two layer combustion flange |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59131548U (en) * | 1983-02-23 | 1984-09-04 | 日産自動車株式会社 | Internal combustion engine cylinder head gasket |
-
1983
- 1983-08-29 JP JP15744683A patent/JPS6050257A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6050257A (en) | 1985-03-19 |
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