JPH0441237Y2 - - Google Patents
Info
- Publication number
- JPH0441237Y2 JPH0441237Y2 JP1983162500U JP16250083U JPH0441237Y2 JP H0441237 Y2 JPH0441237 Y2 JP H0441237Y2 JP 1983162500 U JP1983162500 U JP 1983162500U JP 16250083 U JP16250083 U JP 16250083U JP H0441237 Y2 JPH0441237 Y2 JP H0441237Y2
- Authority
- JP
- Japan
- Prior art keywords
- grommet
- gasket
- reinforcing ring
- inner periphery
- tightening
- 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
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 2
- 229920003051 synthetic elastomer Polymers 0.000 claims description 2
- 239000005061 synthetic rubber Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000011162 core material Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 208000013201 Stress fracture Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 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]
本考案は内燃機関のシリンダーブロツクとシリ
ンダーヘツドとの間に介在するガスケツトに関
し、さらに詳しくはガスケツトに設けたグロメツ
トの改良に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a gasket interposed between a cylinder block and a cylinder head of an internal combustion engine, and more particularly to an improvement in a grommet provided in the gasket.
[従来の技術]
従来、ガスケツトにおけるグロメツトはガスケ
ツトの油、水等を通す孔部内周縁に沿つて結着し
シリンダーブロツクとシリンダーヘツドとの二部
材に締付けられて密封力を働かせている。[Prior Art] Conventionally, a grommet in a gasket is attached along the inner periphery of a hole in the gasket through which oil, water, etc. can pass, and is tightened to two members, a cylinder block and a cylinder head, to exert a sealing force.
[考案が解決しようとする課題]
しかし、前記構造ではシリンダーボア部から来
る燃焼ガス圧力に負けてガスケツトの孔部内周縁
から一部分あるいは全周部グロメツトが剥離する
バツクリング現象を発生させ密封材として機能を
喪失する危険性が多分にあつた。[Problem to be solved by the invention] However, with the above structure, a buckling phenomenon occurs in which the grommet partially or completely peels off from the inner periphery of the gasket hole due to the combustion gas pressure coming from the cylinder bore, and the grommet no longer functions as a sealing material. There was a high risk of losing it.
この危険性を回避するため、例えば第1図に示
すようにグロメツトA1の厚みを増し上下外周縁
部1をガスケツトBの孔2周面部に被せる形状と
し該外周縁部1により強い局圧を受けさせる構造
か、あるいは第2図に示すようなグロメツトA2
内に補強芯材3を埋設せしめる構造などが考案さ
れている。しかし、これらは何れも根本的なガス
漏れ対策とはなり得ていない。すなわち、第1図
で示した前者の強い局部面圧を得ようとするグロ
メツトA1は、ガスケツトBの歪曲や厚みの不均
一などの直接影響されて該グロメツトA1を形成
する弾性体の弾性限界を簡単に越えるから破壊さ
れ易く、また装着も面倒である。また第2図で示
した後者の補強芯材3を内含するグロメツトA2
は該補強芯材3厚みに弾性部を奪われどうしても
弾力不足になり応力破壊を起し易いなど多くの欠
点があつた。 In order to avoid this risk, for example, as shown in Fig. 1, the thickness of the grommet A1 is increased so that the upper and lower outer circumferential edges 1 cover the circumferential surface of the hole 2 of the gasket B, so that the outer circumferential edge 1 receives stronger local pressure. or grommet A2 as shown in Figure 2.
A structure in which a reinforcing core material 3 is buried inside has been devised. However, none of these can be a fundamental countermeasure against gas leaks. In other words, the grommet A1 that attempts to obtain the former strong local surface pressure shown in FIG. Since it is easily crossed, it is easily destroyed, and it is also troublesome to attach. In addition, grommet A2 including the latter reinforcing core material 3 shown in FIG.
The reinforcing core material has many drawbacks, such as the fact that the thickness of the reinforcing core material is deprived of its elasticity, resulting in insufficient elasticity and a tendency to cause stress fractures.
本考案はこの様な多くの欠点を除去し単純な構
造で簡単に装着できすぐれた密封生を発揮するガ
スケツトに装着されるグロメツトを提供するもの
である。 The present invention eliminates many of these drawbacks and provides a grommet to be attached to a gasket that has a simple structure, is easy to install, and exhibits excellent sealing performance.
[課題を解決するための手段]
本考案は第3図で示すごとく、ガスケツトBに
設けた油あるいは水などが通る孔部2の内周縁に
沿つて装着される合成ゴム、合成樹脂等の弾性体
で形成したグロメツトA3であつて、該グロメツ
トA3はその内周部に環状溝4を備え、該環状溝
4に鉄、ステンレススチール、真鍮などの金属、
あるいは充分な強度を有する硬質合成樹脂等で形
成され圧縮部材に接触してガスケツトBの寸法規
制をなす太さを有した補強リング5を係合させる
ことを特徴としたグロメツトA3である。[Means for Solving the Problems] As shown in Fig. 3, the present invention uses an elastic material such as synthetic rubber or synthetic resin that is installed along the inner periphery of the hole 2 provided in the gasket B through which oil or water passes. The grommet A3 is formed of a metal body, and the grommet A3 has an annular groove 4 on its inner circumference, and the annular groove 4 is made of metal such as iron, stainless steel, brass, etc.
Alternatively, the grommet A3 is characterized in that a reinforcing ring 5 made of a hard synthetic resin or the like having sufficient strength and having a thickness that contacts the compression member and regulates the size of the gasket B is engaged.
[作用]
この構造は、重量的に不利となるガスケツトB
本体を挟む形状、あるいは予め接着剤などを塗布
した芯材3をグロメツト成型時に挿入するなどの
不利益及び面倒な手間を必要とすることなく、容
易に成型、装着できしかも飛躍的な密封力の向上
を果たしたものであつて、その作用効果は、第3
図で示した前記補強リング5付グロメツトA3を
シリンダーブロツクとシリンダーヘツドとの間に
装着し締付けると該グロメツトA3の上下面が圧
縮され周方向の内外に弾力特性を発揮して横流れ
を起そうとするが、該グロメツトA3の外周部は
ガスケツトBの孔部2内壁によつて遮られ、内周
部も充分な強度を有する補強リング5を係合して
あるため横流れする場所を全く失つてしまうから
弾性体の該グロメツトA3内部に緊迫力が蓄積さ
れ極めて高い密封性を発揮するものとなつた。こ
の様に高い緊迫力を維持するグロメツトA3はそ
の初期目的であるシリンダーボア部からの燃焼ガ
ス圧力に負けるバツクリング現象を完全に防止す
るばかりでなく、他部材を内含するとか挟むこと
がないため応力破壊の原因となる部分的負荷がな
くなり長期間不変的な密封を約束する。[Function] This structure is disadvantageous in terms of weight.
It can be easily molded and installed without the disadvantages and troublesome effort of inserting a core material 3 coated with adhesive or the like in advance during grommet molding, and has a dramatic sealing force. It has achieved improvement, and its effect is the third one.
When the grommet A3 with the reinforcing ring 5 shown in the figure is installed between the cylinder block and the cylinder head and tightened, the upper and lower surfaces of the grommet A3 are compressed, exerting elasticity in and out of the circumferential direction and causing a lateral flow. However, the outer periphery of the grommet A3 is blocked by the inner wall of the hole 2 of the gasket B, and the inner periphery is also engaged with a reinforcing ring 5 having sufficient strength, so there is no place for lateral flow. As a result, a tension force was accumulated inside the grommet A3, which is an elastic body, and exhibited extremely high sealing performance. Grommet A3, which maintains such a high tension force, not only completely prevents the buckling phenomenon, which is the initial purpose of grommet A3, which is caused by succumbing to the pressure of combustion gas from the cylinder bore, but also because it does not include or pinch other parts. Partial loads that cause stress failure are eliminated, ensuring a long-term, unchanging seal.
またこの様なガスケツトAは通常締付圧力に適
正範囲が有り、この範囲を外れればシリンダー容
積が変わりかつ圧縮比も異なつてしまい、性能的
にもシリンダーヘツド歪、ブロツク歪を起し密封
力を大きく低下させる。この適正締付圧範囲を得
るために、従来では微妙で面倒な締付調節を施し
て対処していたものが、本考案のグロメツトA3
は過度に締付けられても補強リング5が適度の剛
性と硬度を有するのでシリンダーヘツドとシリン
ダーに接触して締付寸法を規正する働きをなし該
補強リング5の高さ寸法あるいは径寸法など調節
することにより簡単に所望の締付寸法と適正な圧
縮を得ることができる。 In addition, such a gasket A usually has an appropriate range of tightening pressure, and if this range is exceeded, the cylinder volume and compression ratio will change, and in terms of performance, cylinder head distortion and block distortion will occur, reducing the sealing force. significantly lower. In order to obtain this appropriate tightening pressure range, conventional methods required delicate and troublesome tightening adjustments, but the grommet A3 of the present invention
Even if the reinforcing ring 5 is over-tightened, it has appropriate rigidity and hardness, so it comes into contact with the cylinder head and cylinder and functions to regulate the tightening dimension, and adjusts the height or diameter of the reinforcing ring 5. By doing so, desired tightening dimensions and appropriate compression can be easily obtained.
[考案の効果]
以上の説明の様に本考案の構造によればグロメ
ツトA3のバツクリング現象を完璧に防止できる
ことのみならず、補強リング5がグロメツトA3
の締付時には両側の締付部材に直接接触してその
圧縮を速やかに停止せしめ該補強リング5の高さ
分締付寸法を規制すると云う飛躍的な密封力の向
上を果たし、さらには高さの異なる補強リング5
を使用することにより締付けトルクの調整まで簡
素化せしめた理想的なグロメツトの構造である。[Effects of the invention] As explained above, according to the structure of the invention, not only can the backling phenomenon of the grommet A3 be completely prevented, but also the reinforcing ring 5 can be attached to the grommet A3.
When tightening, the reinforcing ring 5 directly contacts the tightening members on both sides to immediately stop the compression, and the tightening dimension is regulated by the height of the reinforcing ring 5, dramatically improving the sealing force. different reinforcement rings 5
This is an ideal grommet structure that simplifies the adjustment of tightening torque.
第1図、及び第2図は従来のグロメツトの部分
断面図である。第3図は本考案の補強リングを装
着したグロメツトの一実施例を示す部分断面図で
ある。
A……グロメツト、B……ガスケツト、1……
上下外周縁部、2……孔、3……補強芯材、4…
…環状溝、5……補強リング。
1 and 2 are partial cross-sectional views of a conventional grommet. FIG. 3 is a partial sectional view showing one embodiment of a grommet equipped with a reinforcing ring of the present invention. A...Grommet, B...Gasket, 1...
Upper and lower outer peripheral edges, 2... hole, 3... reinforcing core material, 4...
...Annular groove, 5...Reinforcement ring.
Claims (1)
周縁に沿つて装着される合成ゴム等の弾性体で形
成したグロメツトにおいて;該グロメツトはその
内周部に環状溝を備え、該環状溝に金属あるいは
樹脂等で形成され圧縮部材に接触してガスケツト
の寸法規制をなす太さを有した補強リングを係合
させることを特徴としたグロメツト。 In a grommet made of an elastic material such as synthetic rubber that is attached along the inner periphery of an oil or water hole provided in a gasket; the grommet has an annular groove on its inner periphery, and a metal A grommet characterized by engaging a reinforcing ring made of resin or the like and having a thickness that controls the size of the gasket by contacting the compression member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16250083U JPS6069351U (en) | 1983-10-19 | 1983-10-19 | grommet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16250083U JPS6069351U (en) | 1983-10-19 | 1983-10-19 | grommet |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6069351U JPS6069351U (en) | 1985-05-16 |
JPH0441237Y2 true JPH0441237Y2 (en) | 1992-09-28 |
Family
ID=30356821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16250083U Granted JPS6069351U (en) | 1983-10-19 | 1983-10-19 | grommet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6069351U (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60110649U (en) * | 1983-12-29 | 1985-07-26 | 株式会社 丸三パツキング製作所 | Push rod hole sealing member of cylinder head gasket for internal combustion engine |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55170443U (en) * | 1979-05-22 | 1980-12-06 |
-
1983
- 1983-10-19 JP JP16250083U patent/JPS6069351U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6069351U (en) | 1985-05-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5364109A (en) | Sealing gasket with hard interior backbone and integral crush limiters | |
JPH0536135Y2 (en) | ||
JP2597071Y2 (en) | gasket | |
JPH0441237Y2 (en) | ||
EP0518664A1 (en) | Metal laminate gasket with auxiliary sealing bead | |
JPS6040898Y2 (en) | Seal washers | |
JPH0130650Y2 (en) | ||
JPH09296867A (en) | Shaft seal unit for butterfly | |
JPH063226Y2 (en) | Sealing device | |
JP2987852B2 (en) | gasket | |
JPH032729Y2 (en) | ||
JPS6319581Y2 (en) | ||
JPS6028838Y2 (en) | Single metal gasket cylinder hole device | |
JPH0221651Y2 (en) | ||
JP2596112Y2 (en) | gasket | |
JPH0133814Y2 (en) | ||
JPH0653814U (en) | Seal bolt / nut | |
JPH0227716Y2 (en) | ||
JPH074330Y2 (en) | Seal washer | |
JPS5852343Y2 (en) | Cylinder liner - structure to prevent clearance corrosion in the upper part | |
JPH034821Y2 (en) | ||
JPS6337027Y2 (en) | ||
JPS6330849Y2 (en) | ||
JPH0121254Y2 (en) | ||
JPH109449A (en) | Rubber hose of fuel tank |