JPH0632831U - Metal laminated gasket - Google Patents
Metal laminated gasketInfo
- Publication number
- JPH0632831U JPH0632831U JP075191U JP7519192U JPH0632831U JP H0632831 U JPH0632831 U JP H0632831U JP 075191 U JP075191 U JP 075191U JP 7519192 U JP7519192 U JP 7519192U JP H0632831 U JPH0632831 U JP H0632831U
- Authority
- JP
- Japan
- Prior art keywords
- metal plate
- laminated
- thickness
- metal
- folded
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
- F02F11/002—Arrangements of sealings in combustion engines involving cylinder heads
-
- 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
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0818—Flat gaskets
- F16J15/0825—Flat gaskets laminated
-
- 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
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0818—Flat gaskets
- F16J2015/0837—Flat gaskets with an edge portion folded over a second plate or shim
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Gasket Seals (AREA)
Abstract
(57)【要約】
【目的】 金属積層形ガスケットにおいて、燃焼室穴シ
ール部における金属板の積層厚さを周囲の平坦部よりも
厚く形成し、その部分に締め付け時の面圧を集中させる
に当り、折り返し部分の金属板積層厚さを容易且つ簡易
に調整可能にし、さらにへたりのないビードの設置を可
能にする。
【構成】 燃焼室穴シール部２１において積層した金属
板１の一部を折り返して他の金属板２，３を挟み込むこ
とにより、該燃焼室穴シール部２１における金属板の積
層厚さを他の平坦部よりも厚く形成し、締め付け時の面
圧を集中させる。その際、積層した金属板３における上
記折り返し部分１ａが当接する部分に、部分的な圧縮変
形により金属板の積層厚さを調節する段差３ａを形成
し、微小な調整により必要な面圧の発生を可能にする。
また、上記段差３ａを形成した金属板３に重ねる金属板
２に、該段差の形成のために生じた段部３ｂを跨ぐビー
ド２ａを設ける。
(57) [Abstract] [Purpose] In a metal laminated gasket, the laminated thickness of the metal plate in the combustion chamber hole seal part is made thicker than the surrounding flat part and the surface pressure at the time of tightening is concentrated in that part. In this case, the laminated thickness of the metal plate at the folded back portion can be adjusted easily and easily, and furthermore, the bead can be set without any settle. A part of the metal plate 1 laminated in the combustion chamber hole sealing portion 21 is folded back to sandwich the other metal plates 2 and 3 so that the lamination thickness of the metal plate in the combustion chamber hole sealing portion 21 is changed to another thickness. Formed thicker than the flat part to concentrate the surface pressure when tightening. At that time, a step 3a for adjusting the laminated thickness of the metal plates is formed by partial compressive deformation at a portion of the laminated metal plates 3 where the folded-back portion 1a abuts, and a necessary surface pressure is generated by minute adjustment. To enable.
Further, a bead 2a that straddles the stepped portion 3b generated due to the formation of the step is provided on the metal plate 2 that is superposed on the metal plate 3 on which the step 3a is formed.
Description
【０００１】[0001]
本考案は、金属積層形ガスケットに関するものであり、さらに詳しくは、内燃 機関のシリンダヘッドガスケットとして用いる金属積層形のガスケットに関する ものである。 The present invention relates to a metal laminated gasket, and more particularly to a metal laminated gasket used as a cylinder head gasket of an internal combustion engine.
【０００２】[0002]
従来、内燃機関のシリンダブロックとシリンダヘッドとの間に装着される金属 積層形のシリンダヘッドガスケットでは、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挟着することにより組立てられている。このよ うなガスケットでは、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）を他の平坦部よりも厚く形成す ることにより、その部分に締め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。 Conventionally, in a metal laminated type cylinder head gasket mounted between a cylinder block and a cylinder head of an internal combustion engine, a plurality of metal plates are laminated, and the outer plates on both sides of the metal plates are intermediate plates. It is assembled by sandwiching. In such gaskets, the metal plate stack thickness (total thickness of each metal plate) at the combustion chamber hole seal part and the fluid hole seal part at the periphery of other fluid holes should be made thicker than other flat parts. By doing so, the surface pressure at the time of tightening is concentrated in that part, and the sealing effect is enhanced.
【０００３】 この金属板の積層厚さを部分的に厚くするための手段としては、金属板の一部 を折り返して、その折り返し部により他の金属板を挟み込むなどの手段が用いら れている。この場合に、金属板の折り返し部の積層厚さが過度に厚くならず、そ の周囲の平坦部よりも若干厚くなるようにするため、通常は、金属板の折り返し 部が重なる位置で、その折り返し部よりも薄い他の金属板の一部を切除して逃げ 部を設けたり、非常に薄い金属板の一部を折り返したりするなどの配慮が行われ ている。As a means for partially increasing the laminated thickness of the metal plate, a part of the metal plate is folded back and another metal plate is sandwiched by the folded back part. . In this case, in order to prevent the laminated thickness of the folded portion of the metal plate from becoming excessively thick and slightly thicker than the flat portion around the folded portion, the folded portion of the metal plate is usually placed at a position where the folded portions overlap. Consideration has been given to cutting out a part of another metal plate thinner than the folded part to provide a relief part, and to fold a part of an extremely thin metal plate.
【０００４】 しかしながら、このような手段によって積層厚さの調整をするためには、前者 では、予め逃げ部を設けるための所要厚さの金属板を用意し、あるいは各金属板 の厚さを微妙に調整しておく必要があり、後者では、折り返しのための特に薄い 金属板を用意するなどの配慮が必要になる。そのため、積層厚さの調整のみのた めに余分の枚数の金属板が必要で、各金属板の厚さが制限を受けるとか、折り返 す金属板の厚さを一定値以下にはできないため、僅かな厚さの差による面圧の調 整が不可能であるなどの問題がある。However, in order to adjust the laminated thickness by such means, in the former case, a metal plate having a required thickness for providing a relief portion is prepared in advance, or the thickness of each metal plate is delicately adjusted. In the latter case, consideration must be given to preparing a particularly thin metal plate for folding back. Therefore, an extra number of metal plates is required only for adjusting the laminated thickness, and the thickness of each metal plate is limited or the thickness of the folded metal plate cannot be less than a certain value. However, there is a problem that the surface pressure cannot be adjusted due to a slight difference in thickness.
【０００５】 また、燃焼室穴シール部等における面圧を高めるためための手段として、その 部分にビードを設けることも行われているが、ガスケットをシリンダブロックに 装着してシリンダヘッドで締め付けることによりそのビードが押し潰された状態 が継続すると、ビードにへたりが生じ、面圧の集中によるシール効果を発揮する ことができなくなる。Further, as a means for increasing the surface pressure in the combustion chamber hole sealing portion, etc., a bead is provided at that portion, but by mounting a gasket on the cylinder block and tightening it with the cylinder head, If the bead continues to be crushed, the bead will be depressed and the sealing effect due to the concentration of surface pressure cannot be exerted.
【０００６】[0006]
本考案の技術的課題は、金属積層形ガスケットにおいて、燃焼室穴シール部に おける金属板の積層厚さを他の平坦部よりも厚く形成し、その部分に締め付け時 の面圧を集中させてシール効果を高めるに当り、予め各金属板の厚さ調整を行う 必要をなくし、しかも前記折り返し部の積層厚さを一層容易且つ簡易に調整可能 にすることにある。 The technical problem of the present invention is that in the metal laminated gasket, the laminated thickness of the metal plate in the combustion chamber hole seal portion is made thicker than other flat portions, and the surface pressure at the time of tightening is concentrated on that portion. In order to enhance the sealing effect, it is not necessary to previously adjust the thickness of each metal plate, and further, the laminated thickness of the folded portion can be adjusted more easily and easily.
【０００７】[0007]
上記課題を解決するため、本考案の金属積層形ガスケットは、 複数枚の金属 板を積層することにより形成し、燃焼室穴シール部における積層した金属板の一 部を折り返して他の金属板を挟み込むことにより、該燃焼室穴シール部における 金属板の積層厚さを周囲の平坦部よりも厚く形成し、その部分に締め付け時の面 圧を集中させるようにしたガスケットにおいて、上記積層した金属板における上 記折り返し部分が重ねられる部分に、部分的な圧縮変形により、該折り返し部分 を重ねた部分の金属板の積層厚さがその周囲よりも若干厚くなるように調節する ための段差を形成し、上記段差を形成した金属板の該段差側に重ねる金属板に、 該段差の形成のために生じた段部を跨ぐビードを設けたことを特徴とするもので ある。 In order to solve the above problems, the metal laminated gasket of the present invention is formed by laminating a plurality of metal plates, and a part of the laminated metal plates in the combustion chamber hole seal part is folded back to form another metal plate. By sandwiching the metal plate in the combustion chamber hole seal portion, the laminated thickness of the metal plate is made thicker than the surrounding flat portion, and the surface pressure at the time of tightening is concentrated in that portion. In the part where the above-mentioned folded-back portion is overlapped, a step is formed by partial compression deformation to adjust so that the laminated thickness of the metal plate where the folded-back portion is overlapped is slightly thicker than the surroundings. A bead that straddles a step portion formed due to the formation of the step is provided on the metal plate that overlaps the stepped metal plate on the step side.
【０００８】[0008]
【作用】 上記ガスケットにおいては、燃焼室穴シール部における積層した金属板の一部 を折り返して、該燃焼室穴シール部における金属板の積層厚さを周囲の平坦部よ りも厚く形成するに際し、積層した金属板における上記折り返し部分が当接する 部分に、部分的な圧縮変形による段差を形成し、これによって金属板の積層厚さ を調節するので、予め必要な厚さに調整した金属板を積層する場合に比して、そ の厚さ調整が簡単であると同時に、折り返し部の積層厚さの微細な調整が一層容 易になる。In the above gasket, when a part of the laminated metal plates in the combustion chamber hole seal portion is folded back to form the laminated thickness of the metal plates in the combustion chamber hole seal portion thicker than the surrounding flat portion, , A step due to partial compressive deformation is formed at a portion of the laminated metal plates where the above-mentioned folded-back portion abuts, and the laminated thickness of the metal plates is adjusted by this step. Compared to the case of stacking, the thickness can be easily adjusted, and at the same time, fine adjustment of the stack thickness of the folded portion becomes easier.
【０００９】 また、上記段差を形成した金属板の該段差側に重ねる金属板に、該段差の形成 のために生じた段部を跨ぐビードを設けたので、ガスケットをシリンダブロック に装着して締め付けた場合にも、そのビードが完全に押し潰された状態にならず 、ビードのへたりが抑制される。しかも、そのビード部分が上記段部に接触せず 、ビード部分の損傷、変形も生じない。従って、このビードにおける面圧の集中 によっても、シール効果を有効に発揮させることが可能になる。Since a bead that straddles the step portion formed due to the formation of the step is provided on the metal plate that overlaps the step side of the stepped metal plate, the gasket is attached to the cylinder block and tightened. If the bead is broken, the bead will not be completely crushed and the bead will be suppressed from settling. Moreover, the bead portion does not come into contact with the step portion, and the bead portion is neither damaged nor deformed. Therefore, even if the surface pressure is concentrated on the beads, the sealing effect can be effectively exhibited.
【００１０】[0010]
図１ないし図３は、本考案に係る金属積層形シリンダヘッドガスケットの第１ 実施例を示し、このガスケットは、金属板により形成した外板１，２と、それら の間に包合された中板３を備え、必要数の燃焼室穴１１の他に、水穴１２、及び オイル穴１３等からなる流体穴、並びにボルト穴１４等を適宜備えると共に、そ れらの燃焼室穴１１及び流体穴の内周縁に流体穴シール部を備えている。即ち、 上記燃焼室穴１１の内周縁には燃焼室穴シール部２１を、水穴１２の内周縁には 水穴シール部２２を、オイル穴１３の内周縁にはオイル穴シール部２３を備えて いる。 1 to 3 show a first embodiment of a metal-laminated cylinder head gasket according to the present invention, which gasket is composed of outer plates 1 and 2 formed of a metal plate, and an intermediate plate formed between them. The plate 3 is provided, and in addition to the required number of combustion chamber holes 11, fluid holes including water holes 12, oil holes 13 and the like, bolt holes 14 and the like are appropriately provided, and the combustion chamber holes 11 and the fluid are provided. A fluid hole seal portion is provided on the inner peripheral edge of the hole. That is, a combustion chamber hole seal portion 21 is provided at the inner peripheral edge of the combustion chamber hole 11, a water hole seal portion 22 is provided at the inner peripheral edge of the water hole 12, and an oil hole seal portion 23 is provided at the inner peripheral edge of the oil hole 13. ing.
【００１１】 上記燃焼室穴シール部２１においては、図２に詳細に示すように、積層した金 属板（外板１）の一部を穴縁において折り返し、この折り返し部分１ａによって 他の金属板（外板２及び中板３）を挟み込むことにより、積層した金属板を全体 的に止着している。 而して、積層した金属板における上記折り返し部分１ａが当接する部分の金属 板（中板３）には、コイニング加工による部分的な圧縮変形により段差３ａを形 成している。この段差３ａは、折り返し部分１ａを重ねた部分の金属板の積層厚 さを、その周囲の平坦部よりも若干厚くなるように調節するためのもので、その 段差３ａの加工深さＴ2 は、上記金属板の折り返し部分１ａの厚さＴ1 よりも浅 くしている。従って、該折り返し部分１ａの厚さＴ1 と圧縮加工された段差３ａ の深さＴ2 との差Ｔ1 −Ｔ2 だけ、燃焼室穴シール部２１が周囲の平坦部よりも 厚く形成されることになる。In the combustion chamber hole seal portion 21, as shown in detail in FIG. 2, a part of the laminated metal plates (outer plate 1) is folded back along the hole edge, and the folded back portion 1 a causes another metal plate to be folded. By sandwiching (the outer plate 2 and the middle plate 3), the laminated metal plates are entirely fixed. Thus, a step 3a is formed in the metal plate (middle plate 3) of the laminated metal plates where the folded-back portion 1a abuts, by partial compressive deformation by coining. The step 3a is for adjusting the laminated thickness of the metal plate in the portion where the folded-back portion 1a is overlapped so as to be slightly thicker than the flat portion around it. The processing depth T 2 of the step 3a is The thickness is smaller than the thickness T 1 of the folded portion 1a of the metal plate. Therefore, the combustion chamber hole seal portion 21 is formed thicker than the surrounding flat portion by the difference T 1 -T 2 between the thickness T 1 of the folded portion 1a and the depth T 2 of the step 3a that has been compressed. It will be.
【００１２】 このコイニング加工による金属板の圧縮変形によれば、予め必要な厚さに調整 した金属板を積層する場合に比して、段差３ａの深さを微細に調整することがで き、その深さと折り返し部分１ａの板の厚さの関係を微小に変化させて、燃焼室 穴シール部２１の面圧を任意に調整することが可能になる。また、予め必要な厚 さにした金属板を用いる場合に比して、面圧の調整を非常に容易に行うことがで きる。According to the compression deformation of the metal plate by the coining process, the depth of the step 3a can be finely adjusted as compared with the case of stacking the metal plates whose thickness is adjusted in advance. The surface pressure of the combustion chamber hole seal portion 21 can be arbitrarily adjusted by slightly changing the relationship between the depth and the thickness of the folded portion 1a. Further, the surface pressure can be adjusted very easily as compared with the case of using a metal plate having a required thickness in advance.
【００１３】 上記段差３ａを形成した中板３の該段差３ａ側に重ねる外板２には、該段差の 形成のために生じた段部３ｂを跨ぐようにビード２ａを形成している。この燃焼 室穴シール部２１においては、前述したように、折り返し部分１ａの厚さＴ1 と 圧縮加工された段差３ａの深さＴ2 との差Ｔ1 −Ｔ2 だけ、折り返し部分１ａを 積層した部分が周囲の平坦部よりも厚く形成されているので、図３に示すように ガスケットをシリンダブロックに装着して締め付けた場合にも、そのビード２ａ が完全に押し潰された状態にならず、そのため、ビード２ａのへたりが抑制され る。しかも、そのビード部分が上記段部３ｂに接触せず、ビード部分の損傷、変 形も生じない。従って、このビードにおける面圧の集中によっても、シール効果 を有効に発揮させることが可能になる。A bead 2a is formed on the outer plate 2 which is superposed on the step 3a side of the middle plate 3 having the step 3a, so as to straddle a step portion 3b formed due to the formation of the step. In the combustion chamber hole seal portion 21, as described above, the folded-back portion 1a is laminated by the difference T 1 -T 2 between the thickness T 1 of the folded-back portion 1a and the depth T 2 of the compressed step 3a. The bead 2a is not completely crushed even when the gasket is mounted on the cylinder block and tightened as shown in Fig. 3 because the part formed is thicker than the surrounding flat part. Therefore, the settling of the bead 2a is suppressed. Moreover, the bead portion does not contact the stepped portion 3b, and the bead portion is neither damaged nor deformed. Therefore, the sealing effect can be effectively exhibited even by concentrating the surface pressure on the beads.
【００１４】 図４の第２実施例では、金属積層形ガスケットを、金属板からなる外板４，５ 及びそれらに包合された中板６を積層することにより構成し、さらに燃焼室穴の 内周に沿ってワイヤリング７を内装した場合を示している。そして、外板４には 前記実施例と同様の折り返し部分４ａを設け、中板６には、金属板の積層厚さを 調節するための段差６ａを設け、上記段差６ａを形成した中板６の該段差６ａ側 に重ねる外板５には、該段差の形成のために生じた段部６ｂを跨ぐように、ビー ド５ａを設けている。この段差６ａは、前記実施例と同様に、コイニング加工に よる部分的な圧縮変形により形成したものである。In the second embodiment shown in FIG. 4, the metal laminated gasket is constructed by laminating the outer plates 4 and 5 made of metal plates and the intermediate plate 6 embedded therein, and further forming the combustion chamber holes. The case where the wiring 7 is installed along the inner circumference is shown. Then, the outer plate 4 is provided with a folded-back portion 4a similar to that in the above-described embodiment, the middle plate 6 is provided with a step 6a for adjusting the laminated thickness of the metal plates, and the middle plate 6 having the step 6a is formed. A bead 5a is provided on the outer plate 5 which is superposed on the step 6a side so as to straddle a step 6b formed due to the formation of the step. The step 6a is formed by partial compressive deformation by coining, as in the above embodiment.
【００１５】 この実施例の場合には、ワイヤリング７の内装により、その部分に締め付け時 の面圧を集中させてシール効果を高めることができるが、それと同時に、前記第 １実施例と同様に、金属板からなる外板４の折り返し部分４ａが当接する部分に おいて、中板６にコイニング加工による部分的な圧縮変形により段差６ａを形成 し、折り返し部分４ａを重ねることにより形成した流体穴シール部を、所要の面 圧を得るに必要な厚さだけ周囲の平坦部よりも厚く形成し、さらに、外板５に段 部６ｂを跨ぐビード５ａを設けて、それらの部分に締め付け時の面圧を集中させ るようにしているので、それらの相乗作用により効果的にシール効果を発揮させ ることができる。In the case of this embodiment, the interior of the wire ring 7 allows the surface pressure at the time of tightening to be concentrated in that portion to enhance the sealing effect, but at the same time, as in the first embodiment, A fluid hole seal formed by forming a step 6a on the middle plate 6 by partial compression deformation by coining at the portion where the folded-back portion 4a of the outer plate 4 made of a metal plate abuts, and stacking the folded-back portion 4a. Portion is formed thicker than the surrounding flat portion by a thickness required to obtain a required surface pressure, and further, a bead 5a straddling the step 6b is provided on the outer plate 5, and the surface at the time of tightening is provided on those portions. Since the pressure is concentrated, it is possible to effectively exert the sealing effect by their synergistic effect.
【００１６】 このようにして、段差６ａに金属板の折り返し部分４ａを重ね、そこにワイヤ リング７を設けた燃焼室穴シール部は、所要の面圧を得るに必要な厚さだけ周囲 の平坦部よりも厚く形成され、その部分に締め付け時の面圧を集中させるが、そ のためには、ワイヤリング７の部分でも、締め付け時に同程度の厚さになること が必要である。従って、ワイヤリング７は締め付け時における変形を予測し、金 属板の積層された燃焼室穴シール部との関連において適切な材料で適切な寸法に 設定されるべきである。In this way, the folded portion 4a of the metal plate is superposed on the step 6a, and the wire ring 7 is provided on the folded portion 4a, so that the combustion chamber hole seal portion has a flat peripheral portion by a thickness required to obtain a required surface pressure. It is formed thicker than the part, and the surface pressure at the time of tightening is concentrated on that part. Therefore, it is necessary for the part of the wiring 7 to have the same thickness at the time of tightening. Therefore, the wiring 7 should predict deformation during tightening and should be dimensioned with the appropriate material in the context of the stacked combustion chamber hole seals of the metal plate.
【００１７】 以上においては、燃焼室穴１１の周囲のシール部２１について説明したが、そ の他の流体穴のシール部２２，２３等については、同様な手段を用いることもで きるし、他の適宜シール手段を用いることもできる。Although the seal portion 21 around the combustion chamber hole 11 has been described above, similar means can be used for the seal portions 22 and 23 of the other fluid holes, and the like. It is also possible to use an appropriate sealing means.
【００１８】[0018]
以上に詳述したように、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ットにおいて、燃焼室穴シール部における積層し た金属板の一部を折り返して、該燃焼室穴シール部における金属板の積層厚さを 周囲の平坦部よりも厚く形成し、その部分に締め付け時の面圧を集中させてシー ル効果を高めるに際し、積層した金属板における上記折り返し部分が当接する部 分に部分的な圧縮変形による段差を形成し、これによって金属板の積層厚さを調 節するようにしたので、予め必要な厚さに調整した金属板を積層する場合に比し て、金属板の厚さ調整が簡単であると同時に、折り返し部の積層厚さの微細な調 整を一層容易に行うことができる。 As described above in detail, according to the present invention, in a metal laminated gasket constituted by laminating a plurality of metal plates, a part of the laminated metal plates in the combustion chamber hole seal part is When folded back, the laminated thickness of the metal plate in the combustion chamber hole seal part is made thicker than the surrounding flat part, and the surface pressure at the time of tightening is concentrated in that part to enhance the sealing effect, and the laminated metal plate Since a step due to partial compressive deformation is formed at the portion where the above-mentioned folded-back portion comes into contact, and the laminated thickness of the metal plates is adjusted by this, the metal plates that have been adjusted to the required thickness in advance are laminated. As compared with the case of performing the above, the thickness of the metal plate can be easily adjusted, and at the same time, the fine adjustment of the laminated thickness of the folded portion can be performed more easily.
【００１９】 また、上記段差を形成した金属板の該段差側に重ねる金属板に、該段差の形成 のために生じた段部を跨ぐビードを設けたので、ガスケットをシリンダブロック に装着して締め付けた場合にも、そのビードが完全に押し潰された状態にならず 、ビードのへたりが抑制され、しかも、そのビード部分が上記段部に接触せず、 ビード部分の損傷、変形が生じることもない。従って、このビードにおける面圧 の集中によっても、シール効果を有効に発揮させることが可能になる。Since a bead that straddles the step portion formed due to the formation of the step is provided on the metal plate that overlaps the step side of the stepped metal plate, the gasket is attached to the cylinder block and tightened. If the bead is not crushed completely, the bead is suppressed from settling, and the bead part does not come into contact with the stepped part, causing damage or deformation of the bead part. Nor. Therefore, the sealing effect can be effectively exhibited even by concentrating the surface pressure on the beads.
【図１】本考案に係る金属積層形ガスケットの第１実施
例を示す部分平面図である。FIG. 1 is a partial plan view showing a first embodiment of a metal laminated gasket according to the present invention.
【図２】図１におけるＡ−Ａ位置での要部拡大断面図で
ある。FIG. 2 is an enlarged cross-sectional view of a main part at a position AA in FIG.
【図３】上記ガスケットのシリンダブロックへの装着状
態を示す要部拡大断面図である。FIG. 3 is an enlarged sectional view of an essential part showing a mounting state of the gasket on a cylinder block.
【図４】本考案の第２実施例における図２と同様な位置
での断面図である。FIG. 4 is a sectional view of the second embodiment of the present invention at the same position as in FIG.
１，２ 外板、 １ａ 折り返し部分、 ３ 中板、 ３ａ 段差、 ３ｂ 段部、 ４，５ 外板、 ４ａ 折り返し部分、 ６ 中板、 ６ａ 段差、 ６ｂ 段部、 １１ 燃焼室穴、 ２１ 燃焼室穴シール部。 1, 2 outer plate, 1a folded part, 3 middle plate, 3a step, 3b step, 4,5 outer plate, 4a folded part, 6 middle plate, 6a step, 6b step, 11 combustion chamber hole, 21 combustion chamber Hole seal part.
Claims (1)
し、燃焼室穴シール部における積層した金属板の一部を
折り返して他の金属板を挟み込むことにより、該燃焼室
穴シール部における金属板の積層厚さを周囲の平坦部よ
りも厚く形成し、その部分に締め付け時の面圧を集中さ
せるようにしたガスケットにおいて、 上記積層した金属板における上記折り返し部分が重ねら
れる部分に、部分的な圧縮変形により、該折り返し部分
を重ねた部分の金属板の積層厚さがその周囲よりも若干
厚くなるように調節するための段差を形成し、 上記段差を形成した金属板の該段差側に重ねる金属板
に、該段差の形成のために生じた段部を跨ぐビードを設
けた、 ことを特徴とする金属積層形ガスケット。1. Formed by laminating a plurality of metal plates, by folding back a part of the laminated metal plates in the combustion chamber hole seal portion and sandwiching another metal plate, the combustion chamber hole seal portion is formed. In a gasket in which the laminated thickness of the metal plate is made thicker than the surrounding flat portion and the surface pressure at the time of tightening is concentrated in that portion, in the portion where the folded-back portion of the laminated metal plate is overlapped, Forming a step for adjusting the laminated thickness of the metal plate in which the folded-back portion is overlapped to be slightly thicker than its surroundings by the temporary compressive deformation, and the step side of the metal plate having the step is formed. A metal laminated gasket, wherein a metal plate to be overlapped with is provided with a bead that straddles a step portion formed due to the formation of the step.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992075191U JP2524026Y2 (en) | 1992-10-05 | 1992-10-05 | Metal laminated gasket |
| ES93305755T ES2091559T3 (en) | 1992-07-21 | 1993-07-20 | METALLIC LAMINATED GASKET WITH REDUCTION AND TAB. |
| US08/093,909 US5408963A (en) | 1992-07-21 | 1993-07-20 | Metal laminate gasket having sealing mechanism formed of recess and flange |
| DE69304461T DE69304461T2 (en) | 1992-07-21 | 1993-07-20 | Laminated metal gasket with a recess and a fleece |
| EP93305755A EP0580427B1 (en) | 1992-07-21 | 1993-07-20 | Metal laminate gasket with recess and flange |
| KR2019930019242U KR0114904Y1 (en) | 1992-10-05 | 1993-09-23 | Multi-layered metal gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992075191U JP2524026Y2 (en) | 1992-10-05 | 1992-10-05 | Metal laminated gasket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0632831U true JPH0632831U (en) | 1994-04-28 |
| JP2524026Y2 JP2524026Y2 (en) | 1997-01-29 |
Family
ID=13569065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992075191U Expired - Lifetime JP2524026Y2 (en) | 1992-07-21 | 1992-10-05 | Metal laminated gasket |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2524026Y2 (en) |
| KR (1) | KR0114904Y1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08326917A (en) * | 1995-05-31 | 1996-12-10 | Ishikawa Gasket Kk | Metal laminated gasket constituted of only a pair of upper and lower plates |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101384679B1 (en) * | 2012-06-29 | 2014-04-14 | 동아공업 주식회사 | Gasket having the structure for assembliing in bolt part |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6296163U (en) * | 1985-12-06 | 1987-06-19 | ||
| JPH0473468A (en) * | 1990-07-16 | 1992-03-09 | Nippon Riikuresu Kogyo Kk | Metal gasket |
| JP3119554U (en) * | 2005-12-13 | 2006-03-02 | 盛久 伊藤 | Body refrigerated mattress |
-
1992
- 1992-10-05 JP JP1992075191U patent/JP2524026Y2/en not_active Expired - Lifetime
-
1993
- 1993-09-23 KR KR2019930019242U patent/KR0114904Y1/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6296163U (en) * | 1985-12-06 | 1987-06-19 | ||
| JPH0473468A (en) * | 1990-07-16 | 1992-03-09 | Nippon Riikuresu Kogyo Kk | Metal gasket |
| JP3119554U (en) * | 2005-12-13 | 2006-03-02 | 盛久 伊藤 | Body refrigerated mattress |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08326917A (en) * | 1995-05-31 | 1996-12-10 | Ishikawa Gasket Kk | Metal laminated gasket constituted of only a pair of upper and lower plates |
Also Published As
| Publication number | Publication date |
|---|---|
| KR940010284U (en) | 1994-05-23 |
| KR0114904Y1 (en) | 1998-04-16 |
| JP2524026Y2 (en) | 1997-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH08517Y2 (en) | Metallic laminated gasket for cylinder head | |
| JP3003026B2 (en) | Metal plate gasket | |
| US6186513B1 (en) | Method of forming gasket with annular sealing projection and groove | |
| JP2595635Y2 (en) | Metal laminated gasket | |
| JP3113642B2 (en) | Metal laminated gasket | |
| JP2006242294A (en) | Metal-laminated cylinder-head gasket | |
| JP2949424B2 (en) | Metal plate gasket seal structure | |
| JPH0632831U (en) | Metal laminated gasket | |
| JPH0531255Y2 (en) | ||
| US6969072B2 (en) | Cylinder head gasket with fold-over stopper | |
| JPH04165167A (en) | Metal gasket | |
| JP2586323Y2 (en) | Metal gasket for internal combustion engine | |
| JPH081330Y2 (en) | Metal laminated gasket | |
| JP2606527Y2 (en) | Laminated metal gasket | |
| JP3378786B2 (en) | Gasket manufacturing method | |
| JP2992275B1 (en) | Cylinder head gasket | |
| JPH0526380Y2 (en) | ||
| JPH0559050U (en) | Steel laminated gasket | |
| JPH0632832U (en) | Metal laminated cylinder head gasket | |
| JP3113647B2 (en) | Metal laminated gasket | |
| JP3294534B2 (en) | Cylinder head gasket | |
| JP3269645B2 (en) | Metal gasket | |
| JPH087172Y2 (en) | Metal laminated cylinder head gasket | |
| JP2935985B2 (en) | Cylinder head gasket | |
| JP4532850B2 (en) | Metal gasket for cylinder head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |