JPH0219662Y2 - - Google Patents
Info
- Publication number
- JPH0219662Y2 JPH0219662Y2 JP1984046402U JP4640284U JPH0219662Y2 JP H0219662 Y2 JPH0219662 Y2 JP H0219662Y2 JP 1984046402 U JP1984046402 U JP 1984046402U JP 4640284 U JP4640284 U JP 4640284U JP H0219662 Y2 JPH0219662 Y2 JP H0219662Y2
- Authority
- JP
- Japan
- Prior art keywords
- gasket
- ring part
- cover member
- sealing
- annular
- 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
Links
- 238000003780 insertion Methods 0.000 claims description 16
- 230000037431 insertion Effects 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 16
- 239000007799 cork Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229920003051 synthetic elastomer Polymers 0.000 claims description 2
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 239000005061 synthetic rubber Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910001234 light alloy Inorganic materials 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Gasket Seals (AREA)
- Sealing Material Composition (AREA)
Description
【考案の詳細な説明】
本考案は、例えば内燃機関に用いるカバー部材
等を密封するガスケツトの改良に関し、さらに具
体的にはシール部を下方に向けて取付けるカバー
部材にガスケツトを固定して組付時の脱落を防止
する構造の改良に関するものである。[Detailed description of the invention] The present invention relates to the improvement of a gasket for sealing a cover member used in an internal combustion engine, for example, and more specifically, the gasket is fixed and assembled to a cover member that is attached with the seal portion facing downward. This relates to an improvement in the structure that prevents time from falling off.
従来、車輌用エンジン等に用いるシリンダーヘ
ツドカバーの密封方法は、シリンダーヘツドカバ
ーとシリンダーブロツク間とに弾性体であるガス
ケツトを装着し、両部材を緊締してシール効果を
発生させるものであるが、この組付け時、シリン
ダーヘツドカバーに装着されたガスケツトを下方
に向けると、ガスケツトは脱落し易く、組付け作
業を著しく低下させたり、組付け不良を招いたり
最悪の場合はオイル洩れを発生させていた。この
不具合を解消するためにシリンダーヘツドカバー
にガスケツトを固定する構造が種々考案され実用
化されている。 Conventionally, the method of sealing cylinder head covers used in vehicle engines, etc. is to attach an elastic gasket between the cylinder head cover and cylinder block, and tighten both members to create a sealing effect. When assembling, if the gasket attached to the cylinder head cover is facing downward, the gasket will easily fall off, significantly slowing down the assembly process, causing poor assembly, or in the worst case, causing an oil leak. Ta. In order to solve this problem, various structures for fixing the gasket to the cylinder head cover have been devised and put into practical use.
以下、図面を参照しつつ詳述する。 A detailed description will be given below with reference to the drawings.
従来の一つの実施例として、第１図で示すごと
く、アルミニウム合金等の軽合金で形成されたシ
リンダーヘツドカバーＡ１のシール面に該シール
面に対してほぼ垂直に全周にわたり設けられた環
状溝１と該環状溝１幅以上に凸出した凸出面２を
数箇所設けたガスケツトＢを、該環状溝１内に圧
挿入してガスケツトＢを固定する構造か、または
第２図で示すごとく、鉄板製シリンダーヘツドカ
バーＡ２を用い、該鉄板製シリンダーヘツドカバ
ーＡ２のガスケツトＤ挿入部に内部よりガスケツ
トＤを保持するための挿入溝４を形成するサイド
スカート３を固着し、ガスケツトＤを挿入して該
サイドスカート３の数箇所を締具を用いて該挿入
溝４側に変形せしめてガスケツトＤ側面に圧触さ
せガスケツトＤの固定を計つているものなどがあ
つた。 As one conventional example, as shown in FIG. 1, a cylinder head cover A1 made of a light alloy such as an aluminum alloy has an annular groove provided in the sealing surface of the cylinder head cover A1 almost perpendicularly to the sealing surface over the entire circumference. 1 and a gasket B having several convex surfaces 2 protruding beyond the width of the annular groove 1 are press-inserted into the annular groove 1 to fix the gasket B, or as shown in FIG. Using an iron plate cylinder head cover A2, a side skirt 3 forming an insertion groove 4 for holding the gasket D from the inside is fixed to the gasket D insertion part of the iron plate cylinder head cover A2, and the gasket D is inserted. Some attempts were made to fix the gasket D by deforming several parts of the side skirt 3 toward the insertion groove 4 using fasteners and pressing against the side surface of the gasket D.
しかし、第１図で示したガスケツトＢに、凸出
面２を設けた前者の構造を有するものは、弾性体
である該凸出面２から生じる反発力を利用して軽
合金製シリンダーヘツドカバーＡ１シール面の環
状溝１側面へ固定させるが、このとき該凸出面２
幅に対し該環状溝１が適度の間隔を保有すること
が義務づけられ、該環状溝１の加工精度に制限を
あたえ、寸法精度の悪い箇所ではガスケツトＢの
挿着不良、脱落などの不具合が発生し、この不具
合を解消させるべくアルミニウム合金等を用いて
高精度の環状溝１を形成していた。従つてこの方
法では高価な軽合金で形成されたシリンダーヘツ
ドカバーＡ１が不可欠であり製品コストに大きく
影響を及ぼし、該環状溝１を設ける加工工程も余
分に必要とした。 However, the former structure in which the gasket B shown in FIG. It is fixed to the side surface of the annular groove 1 of the surface, but at this time, the convex surface 2
The annular groove 1 is required to have an appropriate spacing relative to the width, which limits the machining accuracy of the annular groove 1, and in places with poor dimensional accuracy, problems such as poor insertion or falling off of the gasket B may occur. However, in order to eliminate this problem, the annular groove 1 has been formed with high precision using an aluminum alloy or the like. Therefore, in this method, the cylinder head cover A1 made of an expensive light alloy is indispensable, which greatly affects the product cost, and requires an extra machining step to provide the annular groove 1.
また、第２図で示した後者の、ガスケツト挿入
部４内側にサイドスカート３を固着した鉄板製シ
リンダーヘツドカバーＡ２は、該サイドスカート
３を締具によつて変形させて固着させるため要求
される溝幅精度は低いもので可能であり、（実際
には高精度を得ることが極めて困難である）、か
つ鉄板をプレス加工すれば容易に、しかも安価に
成形可能であるが、ガスケツトＤを装着に際し、
サイドスカート３の数箇所を締具によつて変形さ
せることは組付け作業員に大変な労力を要求し、
締付け変形量が不足すれば脱落し、大き過ぎれば
ガスケツトＤ側面極部を締め過ぎ、長時間の装着
使用にはガスケツトＤの材質に極部疲労が生じシ
ール効果を著しく低下させ、極端な場合はオイル
洩れを発生させるなど微妙な調整を必要とした。 The latter cylinder head cover A2 shown in FIG. 2, which is made of iron plate and has a side skirt 3 fixed to the inside of the gasket insertion part 4, is required because the side skirt 3 is deformed and fixed by a fastener. Although it is possible to have a low groove width precision (in reality, it is extremely difficult to obtain high precision), and it can be formed easily and inexpensively by pressing a steel plate, it is difficult to install gasket D. On this occasion,
Deforming several parts of the side skirt 3 using fasteners requires a great deal of effort from the assembly worker.
If the amount of tightening deformation is insufficient, it will fall off, and if it is too large, the side poles of gasket D will be over-tightened, and if used for a long time, the material of gasket D will become fatigued at the poles, which will significantly reduce the sealing effect. This required delicate adjustments such as oil leakage.
本考案は、これらの欠点を除去し、安価に製造
しうる鉄板製シリンダーヘツドカバーに使用出
来、組立作業の容易で確実な固着を保障する脱落
防止付環状ガスケツトを提供するものである。 The present invention eliminates these drawbacks and provides an annular gasket with a drop-off prevention mechanism that can be used in a steel plate cylinder head cover that can be manufactured at low cost, and that facilitates assembly work and ensures reliable fixation.
本考案は、合成ゴム・コルク・合成樹脂・また
はこれらの混合物を成形基材として形成される〇
形・□形・あるいはこれらの形を組合せた所望の
断面形状を有する環状ガスケツトＥであつて、第
３図以下の図面で示すごとく該環状ガスケツトＥ
のカバー部材Ｃに接する側の上環部Ｅ１は前記カ
バー部材Ｃに設けられたガスケツト挿入溝４の巾
寸法より大きく蛇行する形状を有し、一方第３図
に示す様に密封部材５に接する側のガスケツト下
環部Ｅ２は前記密封部材５のシール環面とほぼ同
形状として、前記それぞれ環形状の異る上環部Ｅ
１と下環部Ｅ２とが一体となした構造である。 The present invention is an annular gasket E having a desired cross-sectional shape of 〇 shape, □ shape, or a combination of these shapes, which is formed using synthetic rubber, cork, synthetic resin, or a mixture thereof as a molding base material, As shown in the drawings below in Figure 3, the annular gasket E
The upper ring portion E1 on the side in contact with the cover member C has a meandering shape larger than the width dimension of the gasket insertion groove 4 provided in the cover member C, while the side on the side in contact with the sealing member 5 as shown in FIG. The lower ring part E2 of the gasket has approximately the same shape as the seal ring surface of the sealing member 5, and the upper ring part E2 has a different ring shape.
1 and the lower ring part E2 are integrated.
この構造の環状ガスケツトＥは次の様な優れた
効果を発揮する。 The annular gasket E having this structure exhibits the following excellent effects.
すなわち、該環状ガスケツトＥの上環部Ｅ１は
第６図及び第７図に示すようにカバー部材Ｃのガ
スケツト挿入溝４より細い断面形状であるが該ガ
スケツト挿入溝４より巾広になるように蛇行せし
めているため該上環部Ｅ１をガスケツト挿入溝４
に挿設するだけで前記巾広の蛇行部最外側部６の
それぞれが該ガスケツト挿入溝４側壁によつて押
し込まれる状態となる。このとき該上環部Ｅ１は
密封部材５のシール環面とほぼ同形状のガスケツ
ト下環部Ｅ２を一体的に設けており、前記ガスケ
ツト挿入溝４側壁に押されて変形している上環部
Ｅ１は応力の加わらない下環部Ｅ２を従えて変形
しようとするからここで該上環部Ｅ１と下環部Ｅ
２とが連動して強い復元反発力を発生させ強力に
ガスケツト挿入溝４側壁に弾性圧着して該環状ガ
スケツトＥを確実にカバー部材Ｃに固定する。 That is, as shown in FIGS. 6 and 7, the upper ring portion E1 of the annular gasket E has a cross-sectional shape narrower than the gasket insertion groove 4 of the cover member C, but has a meandering shape so that it is wider than the gasket insertion groove 4. Because of this, the upper ring portion E1 is inserted into the gasket insertion groove 4.
By simply inserting the gasket into the gasket, each of the outermost portions 6 of the wide meandering portion is pushed into the side wall of the gasket insertion groove 4. At this time, the upper ring part E1 is integrally provided with a gasket lower ring part E2 having approximately the same shape as the seal ring surface of the sealing member 5, and the upper ring part E1 which is deformed by being pushed by the side wall of the gasket insertion groove 4 is Since the lower ring part E2 to which no stress is applied is to be deformed, the upper ring part E1 and the lower ring part E
2 in conjunction with each other to generate a strong restoring repulsion force and strongly elastically press the gasket into the side wall of the gasket insertion groove 4, thereby reliably fixing the annular gasket E to the cover member C.
この作用効果は、第２図の様に造形が容易で安
価であるが前述した様に高い寸法精度を望めない
鉄板製ヘツドカバーのごときカバー部材Ａ２に対
し充分な脱落防止効果を期待できるものとなり、
さらに、本考案の環状ガスケツトＥはその上環部
Ｅ１の複数の蛇行部がそれぞれ小面の部分として
でなく、つまり大きなうねりとしてガスケツトＥ
の全体で変形を受けとめるから各部の変形量が押
えられ該変形による材質疲労の発生を防止し安定
した密封を長期間得ることができるものとなつ
た。 This action and effect can be expected to provide a sufficient fall-off prevention effect for the cover member A2, such as the head cover made of iron plate, which is easy to mold and inexpensive as shown in Fig. 2, but cannot be expected to have high dimensional accuracy as described above.
Furthermore, in the annular gasket E of the present invention, the plurality of meandering parts of the upper ring part E1 are not formed as facets, but as large undulations.
Because the entire structure accepts deformation, the amount of deformation in each part is suppressed, material fatigue due to deformation is prevented, and stable sealing can be achieved for a long period of time.
以上の説明の様に本考案は、簡単安価な構造で
ありながら低精度で安価な鉄板製シリンダーヘツ
ドカバーなどへの使用を可能とし組付け作業を極
めて容易になしえ強い密封力を長期間発揮する理
想的な環状ガスケツトである。 As explained above, the present invention has a simple and inexpensive structure, yet can be used for low-precision and inexpensive steel plate cylinder head covers, etc., making assembly work extremely easy and providing strong sealing power for a long period of time. It is an ideal annular gasket.
第１図は従来の合金製シリンダーヘツドカバー
と挿入部に凸出面を有するガスケツトの一部を切
欠いた部分斜視図である。第２図は従来の鉄板製
シリンダーヘツドカバーに環状ガスケツトを装着
した状態を示す部分断面図である。第３図は本考
案の環状ガスケツトを示す部分平面図である。第
４図は第３図のａ−a′断面図である。第５図は第
３図のｂ−b′断面図である。第６図は第４図で示
した部分にカバー部材を装着した断面図である。
第７図は第５図で示した部分にカバー部材を装着
した断面図である。
Ｃ……カバー部材、Ｅ１……ガスケツト上環
部、Ｅ２……ガスケツト下環部、４……ガスケツ
ト挿入溝、５……密封部材、６……蛇行部最外側
部。
FIG. 1 is a partially cut away perspective view of a conventional alloy cylinder head cover and a gasket having a convex surface at the insertion portion. FIG. 2 is a partial sectional view showing a conventional cylinder head cover made of iron plate with an annular gasket attached thereto. FIG. 3 is a partial plan view showing the annular gasket of the present invention. FIG. 4 is a sectional view taken along line a-a' in FIG. FIG. 5 is a sectional view taken along line bb' in FIG. FIG. 6 is a cross-sectional view of the portion shown in FIG. 4 with a cover member attached thereto.
FIG. 7 is a cross-sectional view of the portion shown in FIG. 5 with a cover member attached thereto. C...Cover member, E1...Gasket upper ring part, E2...Gasket lower ring part, 4...Gasket insertion groove, 5...Sealing member, 6...Meandering portion outermost part.
Claims (1)
し、該両部材Ｃ・５の密封を目的とした合成ゴ
ム・コルク・合成樹脂・またはこれらの混合物で
形成される環状ガスケツトＥであつて、前記カバ
ー部材Ｃに装着されるガスケツト上環部Ｅ１は該
カバー部材Ｃに設けられたガスケツト挿入溝４巾
寸法より大きく蛇行する形状を有し、一方密封部
材５に接するガスケツト下環部Ｅ２は前記密封部
材５のシール環面とほぼ同形状として前記それぞ
れ形状の異なるガスケツト上環部Ｅ１とガスケツ
ト下環部Ｅ２とを一体的に形成したことを特徴と
した環状ガスケツト。 An annular gasket E interposed between two members, a cover member C and a sealing member 5, and made of synthetic rubber, cork, synthetic resin, or a mixture thereof, for the purpose of sealing the two members C and 5. The gasket upper ring part E1 attached to the cover member C has a meandering shape larger than the width of the gasket insertion groove 4 provided in the cover member C, while the gasket lower ring part E2 in contact with the sealing member 5 has a meandering shape larger than the width of the gasket insertion groove 4 provided in the cover member C. An annular gasket characterized in that the gasket upper ring part E1 and the gasket lower ring part E2, which have different shapes, are integrally formed to have substantially the same shape as the seal ring surface of the sealing member 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4640284U JPS60158064U (en) | 1984-03-29 | 1984-03-29 | annular gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4640284U JPS60158064U (en) | 1984-03-29 | 1984-03-29 | annular gasket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60158064U JPS60158064U (en) | 1985-10-21 |
| JPH0219662Y2 true JPH0219662Y2 (en) | 1990-05-30 |
Family
ID=30560759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4640284U Granted JPS60158064U (en) | 1984-03-29 | 1984-03-29 | annular gasket |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60158064U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006112526A (en) * | 2004-10-14 | 2006-04-27 | Nhk Spring Co Ltd | Foamed gasket |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5550362B2 (en) * | 1973-02-06 | 1980-12-17 | ||
| JPS5935771B2 (en) * | 1979-09-28 | 1984-08-30 | 株式会社日本製鋼所 | Automatic control device for operating oil amount of injection molding machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5550362U (en) * | 1978-09-29 | 1980-04-02 | ||
| JPS5935771U (en) * | 1982-08-31 | 1984-03-06 | 株式会社土屋製作所 | Padskin to prevent falling off |
-
1984
- 1984-03-29 JP JP4640284U patent/JPS60158064U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5550362B2 (en) * | 1973-02-06 | 1980-12-17 | ||
| JPS5935771B2 (en) * | 1979-09-28 | 1984-08-30 | 株式会社日本製鋼所 | Automatic control device for operating oil amount of injection molding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60158064U (en) | 1985-10-21 |
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