JPH0225969Y2 - - Google Patents
Info
- Publication number
- JPH0225969Y2 JPH0225969Y2 JP1985114723U JP11472385U JPH0225969Y2 JP H0225969 Y2 JPH0225969 Y2 JP H0225969Y2 JP 1985114723 U JP1985114723 U JP 1985114723U JP 11472385 U JP11472385 U JP 11472385U JP H0225969 Y2 JPH0225969 Y2 JP H0225969Y2
- Authority
- JP
- Japan
- Prior art keywords
- oil pan
- bolt insertion
- gasket
- protruding
- elongated hole
- 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
- 230000037431 insertion Effects 0.000 claims description 20
- 238000003780 insertion Methods 0.000 claims description 20
- 239000007799 cork Substances 0.000 claims description 2
- 239000013013 elastic material 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
- 238000007789 sealing Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 etc. Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は密封性を改良したガスケツトに関し、
さらに具体的にはオイルパンガスケツトの形状改
良に関する。[Detailed description of the invention] [Field of industrial application] The present invention relates to a gasket with improved sealing performance.
More specifically, the present invention relates to improving the shape of an oil pan gasket.
ガスケツトは二つの部材の密封部分に介在させ
て密封をなさしめるために用いられるが、従来で
は比較的大きな密封箇所に使用される形状の複雑
な大きなガスケツト、例えば自動車用エンジンに
使用されるオイルパンガスケツトなどでは組付け
る際の締め付け力の不均一、ガスケツト肉厚のバ
ラツキなどにより均一な締め付け面圧が得られ
ず、例えば実公昭55−35491号公報に開示されて
いるように特に鉄板を絞り加工して形成されたオ
イルパンの場合などには、該オイルパンのシール
面に強力な締め付け圧力を加えると簡単にそのシ
ール面が歪み、ボルト締結部周辺が局部的締圧を
受ける。以下、図面を参照しつつ詳述する。こう
なると、オイルパンガスケツトＡのボルト挿入穴
Ｂ周辺は他部に比べて大きく変形横流れを起こ
し、該ボルト挿入穴Ｂが丸穴Ｂ２の場合には第３
図に示す様にガスケツトＡの巾方向に過大な変形
が生じ、該丸穴Ｂ２は巾方向に延びる楕円状とな
りこの変形部分に引つ張られて、ガスケツトＡの
環方向に強い引張り応力１を発生させる。このた
め第３図の様なボルト挿入穴ＢのガスケツトＡの
巾側内縁に亀裂Ｃが発生する危険性が高い。
Gaskets are used to create a seal by interposing the seal between two parts, but conventionally large gaskets with complex shapes are used for relatively large sealing points, such as oil pans used in automobile engines. When assembling gaskets, it is not possible to obtain uniform tightening surface pressure due to uneven tightening force and variations in gasket wall thickness. In the case of a machined oil pan, applying strong clamping pressure to the sealing surface of the oil pan easily distorts the sealing surface, resulting in local clamping pressure being applied around the bolted part. A detailed description will be given below with reference to the drawings. If this happens, the area around the bolt insertion hole B of the oil pan gasket A will be deformed and lateral flow will occur to a greater extent than other parts, and if the bolt insertion hole B is a round hole B2, the third
As shown in the figure, an excessive deformation occurs in the width direction of gasket A, and the round hole B2 becomes an ellipse extending in the width direction, and is pulled by this deformed portion, causing a strong tensile stress 1 in the annular direction of gasket A. generate. Therefore, there is a high risk that a crack C will occur at the inner edge of the width side of the gasket A in the bolt insertion hole B as shown in FIG.
この対策として、第４図で示す如くオイルパン
シール部４の剛性及び精度を向上させるために該
シール部４へ補強板５を挿入したり、あるいはオ
イルパンガスケツトＡのボルト挿入穴Ｂ形状を、
第５図ａの様な楕円形状Ｂ３または第５図ｂの様
な引張り応力１を受ける部分の質量を増やした形
状Ｂ４等も試みられたが、前者第４図の補強板５
構造では装着作業性が悪くかつ充分に変形による
亀裂を防ぐまでには至つておらず実用性に乏しい
し、また第５図で示した曲線で構成されたボルト
穴Ｂ３，Ｂ４では、締結時曲線部分がガスケツト
Ａの環方向の引張り応力１に対して均等に緩和作
用を行わず歪みの強い部分から亀裂Ｃを発生させ
易いなど望みうる充分な亀裂防止効果を発揮し得
ないなど多くの欠点があつた。
As a countermeasure to this problem, as shown in FIG. 4, a reinforcing plate 5 is inserted into the oil pan seal part 4 to improve the rigidity and accuracy of the oil pan seal part 4, or the shape of the bolt insertion hole B of the oil pan gasket A is changed. ,
Attempts have also been made to create an elliptical shape B3 as shown in FIG.
The structure has poor installation workability and is not practical enough to sufficiently prevent cracks due to deformation, and the bolt holes B3 and B4, which have curved lines shown in Figure 5, have a curved line when fastened. There are many drawbacks, such as not being able to exhibit the desired sufficient crack prevention effect, such as not being able to evenly relax the tensile stress 1 in the annular direction of gasket A, and cracking C being likely to occur from the strongly strained part. It was hot.
本考案はこの様な多くの欠点を除去し局部的面
圧に耐えて長期間良好な密封力を発揮することの
できるオイルパンガスケツトを提供するものであ
る。 The present invention eliminates many of these drawbacks and provides an oil pan gasket that can withstand local surface pressure and exhibit good sealing power for a long period of time.
本考案は、第１図及び第２図に示すごとく、合
成ゴム・合成樹脂・コルク等あるいはこれらを混
合などした弾性体で帯状をもつて環状に形成さ
れ、その平面部に複数のボルト挿入穴Ｂを有する
オイルパンガスケツトＡ１であつて、前記オイル
パンガスケツトＡ１が有する複数のボルト挿入穴
Ｂを帯状の巾方向に直線平行部を有して環方向に
延びその両端に半円形部を有する長穴１を設け、
該長穴１の縁を平面側の一方あるいは両方に突出
させて突出環２を形成すると共に、前記環方向に
延び前記突出環２のそれぞれに繋がらせた突条リ
ブ３を配設した構造を特徴としている。
As shown in Figs. 1 and 2, the present invention is made of an elastic material such as synthetic rubber, synthetic resin, cork, etc., or a mixture thereof, which is formed into a ring shape with a belt shape, and has a plurality of bolt insertion holes in the flat part. The oil pan gasket A1 has a plurality of bolt insertion holes B, which have straight parallel parts in the width direction of the belt, extend in the annular direction, and have semicircular parts at both ends thereof. Provide a long hole 1 having
The edge of the elongated hole 1 is made to protrude to one or both of the plane sides to form a protruding ring 2, and a protruding rib 3 extending in the direction of the ring and connected to each of the protruding rings 2 is provided. It is a feature.
この様な構造を有するオイルパンガスケツトＡ
１は密封力を飛躍的に高めかつ長期間に安定した
性能を発揮する。
Oil pan gasket A with such a structure
1 dramatically increases sealing power and exhibits stable performance over a long period of time.
すなわち、強トルクでオイルパンのボルト等を
締付けるとオイルパンガスケツトＡ１のボルト挿
入穴Ｂ付近を局部変形させようとするが、この集
中的局部面圧に対して本考案のオイルパンガスケ
ツトＡ１は、第１図に示す様にボルト挿入穴Ｂを
ガスケツトＡ１の環方向に延びる長穴Ｂ１に造形
し、ボルト挿入穴Ｂ周辺からガスケツトＡ１の巾
方向に拡がろうとする横流れ部分を初めから除去
しているのでその変形量を大きく減じせしめた。
勿論少ない横流れ変形であつてもガスケツトＡ１
の環方向の引張り応力１は発生するものであつ
て、この引張り応力１によるボルト挿入穴Ｂの亀
裂Ｃの防止対策としては、前記長穴Ｂ１のガスケ
ツトＡ１の巾方向部を、引張り応力１に極めて強
い直線をもつた平行形状に造形すると供に、該長
穴Ｂ１縁に突出環２を設け、さらにそのそれぞれ
を突条リブ３で連ならせており、これによつて長
穴Ｂ１自体の形状保持剛性を向上させて拡がり及
び伸び変形を押え、加えて突条リブ３でガスケツ
トＡ１の環方向に引張る一定の変形規制をなさし
めているから極めて変形量の少ない亀裂Ｃの防止
効果の高いものとなる。 That is, when the oil pan bolts, etc. are tightened with a strong torque, the vicinity of the bolt insertion hole B of the oil pan gasket A1 tends to be locally deformed. As shown in Fig. 1, the bolt insertion hole B is shaped into a long hole B1 extending in the annular direction of the gasket A1, and the lateral flow portion that attempts to expand from the periphery of the bolt insertion hole B in the width direction of the gasket A1 is removed from the beginning. This greatly reduces the amount of deformation.
Of course, even if there is a small amount of lateral flow deformation, gasket A1
A tensile stress 1 in the annular direction is generated, and as a measure to prevent the crack C in the bolt insertion hole B due to this tensile stress 1, the width direction portion of the gasket A1 of the elongated hole B1 is subjected to the tensile stress 1. In addition to modeling into a parallel shape with extremely strong straight lines, a protruding ring 2 is provided on the edge of the elongated hole B1, and each of these rings is connected by a protruding rib 3, thereby making the elongated hole B1 itself The shape retention rigidity is improved to suppress expansion and elongation deformation, and in addition, the protruding rib 3 restricts the deformation to a certain extent by pulling in the annular direction of the gasket A1, so it is highly effective in preventing cracks C with an extremely small amount of deformation. becomes.
この様な作用の外に前記長穴Ｂ１を設けること
によつて、オイルパンガスケツトＡ１のボルト挿
入穴Ｂ間部に対して、該ボルト挿入穴Ｂ周辺の圧
縮面積及び圧縮量を減じせしめているから、多く
の締圧が該ボルト挿入穴Ｂ周辺から簡単にボルト
挿入穴Ｂ間部に移行分配され、締付け面圧の均一
化が図れる効果がある。 In addition to this effect, by providing the elongated hole B1, the compression area and amount of compression around the bolt insertion hole B can be reduced with respect to the area between the bolt insertion holes B of the oil pan gasket A1. Therefore, much of the tightening pressure is easily transferred and distributed from the vicinity of the bolt insertion hole B to the area between the bolt insertion holes B, which has the effect of making the tightening surface pressure uniform.
当然ながら前記突出環２と突条リブ３はオイル
パンガスケツトＡ１の平面より突出したシールリ
ブ形状をもつて配設されているからオイルパンの
シール部４あるいはシリンダーブロツクのシール
面に高い接触圧力でぴつたり密着し強大なシール
効果を得さしめる。従つて、ボルト締付けに際し
ては軽微な回動トルクで充分事足りるものとな
る。 Naturally, the protruding ring 2 and the protruding rib 3 are arranged in the shape of a seal rib that protrudes from the plane of the oil pan gasket A1, so that a high contact pressure is applied to the seal portion 4 of the oil pan or the seal surface of the cylinder block. It adheres tightly and provides a powerful sealing effect. Therefore, when tightening the bolt, a slight rotational torque is sufficient.
本考案での長穴Ｂ１形状は、求められる性能に
応じて長手方向寸法を設定すれば良く特に限定し
ないし、また該長穴Ｂ１縁に設けられる突出環２
においても、第２図で示したボルト挿入穴Ｂ縁に
向つて徐々に突出する形状だけに限らず丸突形角
突形など様々な形状に造形すれば良い。
The shape of the long hole B1 in the present invention is not particularly limited as long as the longitudinal dimension is set according to the required performance, and the protruding ring 2 provided on the edge of the long hole B1 is
In this case, the shape is not limited to the shape that gradually projects toward the edge of the bolt insertion hole B shown in FIG. 2, but may be formed into various shapes such as a rounded shape or a square shape.
また、第１図では前記突出環２を繋ぐ突条リブ
３を分り易く一本だけ配設して示したが、勿論こ
れに限定するものでなく複数の突条リブ３を設け
ボルト挿入穴Ｂ間部の密封力と長穴１の変形防止
をさらに向上させることも可能である。 Further, in FIG. 1, only one protruding rib 3 connecting the protruding rings 2 is shown as being arranged for easy understanding, but of course, the present invention is not limited to this, and a plurality of protruding ribs 3 may be provided in the bolt insertion hole B. It is also possible to further improve the sealing force between the gaps and the prevention of deformation of the elongated hole 1.
以上の説明の様に本考案は、バランスのとれた
密封面圧を全面に確保し極少の圧縮変形をもつて
長期間強力な密封力を維持するとともに、亀裂の
ない理想的なオイルパンガスケツトである。
As explained above, the present invention ensures balanced sealing surface pressure over the entire surface, maintains strong sealing force for a long period of time with minimal compressive deformation, and creates an ideal oil pan gasket without cracks. It is.
第１図は本考案のオイルパンガスケツトの部分
平面図である。第２図は本考案のオイルパンガス
ケツトの部分断面図である。第３図は従来のオイ
ルパンガスケツトの締付けられた状態を示す平面
図である。第４図は従来のオイルパンガスケツト
の他の実施例を示す断面図である。第５図は従来
のボルト挿入穴を示す平面図である。
Ａ……オイルパンガスケツト、Ｂ……ボルト挿
入穴、Ｂ１……長穴、Ｃ……亀裂、１……引張り
応力、２……突出環、３……突条リブ。
FIG. 1 is a partial plan view of the oil pan gasket of the present invention. FIG. 2 is a partial sectional view of the oil pan gasket of the present invention. FIG. 3 is a plan view showing a conventional oil pan gasket in a tightened state. FIG. 4 is a sectional view showing another embodiment of a conventional oil pan gasket. FIG. 5 is a plan view showing a conventional bolt insertion hole. A...Oil pan gasket, B...Bolt insertion hole, B1...Elongated hole, C...Crack, 1...Tensile stress, 2...Protruding ring, 3...Protruding rib.
Claims (1)
環状に形成されその平面部に複数のボルト挿入穴
Ｂを有するオイルパンガスケツトＡにおいて；前
記複数のボルト挿入穴Ｂを帯形の巾方向に直線平
行部を有して環方向に延びその両端に半円形部を
有する長穴１を設け、該長穴１の縁を平面側に突
出させ突出環２を形成すると共に、前記環方向に
延び該突出環２のそれぞれに繋がらせた突条リブ
３を配設したことを特徴とするオイルパンガスケ
ツト。 In an oil pan gasket A that is formed into a belt-shaped ring shape from an elastic material such as synthetic rubber, synthetic resin, or cork, and has a plurality of bolt insertion holes B on its flat surface; the plurality of bolt insertion holes B are arranged in the width direction of the belt shape. An elongated hole 1 having a linear parallel portion extending in the annular direction and having semicircular portions at both ends is provided, and the edge of the elongated hole 1 projects toward the plane side to form a protruding ring 2, and the elongated hole 1 extends in the annular direction. An oil pan gasket characterized in that a protruding rib 3 is provided which extends and is connected to each of the protruding rings 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985114723U JPH0225969Y2 (en) | 1985-07-25 | 1985-07-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985114723U JPH0225969Y2 (en) | 1985-07-25 | 1985-07-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6222360U JPS6222360U (en) | 1987-02-10 |
| JPH0225969Y2 true JPH0225969Y2 (en) | 1990-07-16 |
Family
ID=30997716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985114723U Expired JPH0225969Y2 (en) | 1985-07-25 | 1985-07-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0225969Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7141041B2 (en) * | 2018-10-05 | 2022-09-22 | 内山工業株式会社 | gasket |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5418629U (en) * | 1973-04-13 | 1979-02-06 | ||
| JPS5835045B2 (en) * | 1977-03-11 | 1983-07-30 | 株式会社クボタ | Combine grain collection device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5835045U (en) * | 1981-08-31 | 1983-03-07 | 株式会社ナブコ | Gaskets for fluid pressure equipment |
-
1985
- 1985-07-25 JP JP1985114723U patent/JPH0225969Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5418629U (en) * | 1973-04-13 | 1979-02-06 | ||
| JPS5835045B2 (en) * | 1977-03-11 | 1983-07-30 | 株式会社クボタ | Combine grain collection device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6222360U (en) | 1987-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4535999A (en) | Gasket assembly having a sealing member suspended in a clear-through opening and method of making same | |
| JPH08517Y2 (en) | Metallic laminated gasket for cylinder head | |
| JPH09292027A (en) | Metal gasket | |
| JPH0225969Y2 (en) | ||
| EP0486255B1 (en) | Metallic gasket | |
| US8789831B2 (en) | Compression limiter with molded insert for gaskets | |
| JP5636579B2 (en) | gasket | |
| JPH0425533Y2 (en) | ||
| JPH0426762Y2 (en) | ||
| JPH0526378Y2 (en) | ||
| JPS5917300B2 (en) | Gasket and sealed joint assembly using it | |
| JPH0139874Y2 (en) | ||
| JPS6358306B2 (en) | ||
| JPH0154542B2 (en) | ||
| JP3720122B2 (en) | Pipe fitting for repair | |
| KR200346571Y1 (en) | Pipe Connecting Structure of Expansion Joint for Preventing Stress Concentration | |
| JPH0139990Y2 (en) | ||
| JPH0238089Y2 (en) | ||
| JPH051729Y2 (en) | ||
| JPH0139873Y2 (en) | ||
| JPH0477834B2 (en) | ||
| JPH0144752Y2 (en) | ||
| JPH0139988Y2 (en) | ||
| JPH01299366A (en) | Metallic gasket | |
| JPS6388375A (en) | Sealing device for plastic cover |