JP2002061539A - Rocker cover installation structure - Google Patents
Rocker cover installation structureInfo
- Publication number
- JP2002061539A JP2002061539A JP2000247394A JP2000247394A JP2002061539A JP 2002061539 A JP2002061539 A JP 2002061539A JP 2000247394 A JP2000247394 A JP 2000247394A JP 2000247394 A JP2000247394 A JP 2000247394A JP 2002061539 A JP2002061539 A JP 2002061539A
- Authority
- JP
- Japan
- Prior art keywords
- gasket
- rocker cover
- boss
- bolt
- holding portion
- 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.)
- Pending
Links
- 238000009434 installation Methods 0.000 title abstract 2
- 230000037431 insertion Effects 0.000 claims abstract description 8
- 238000003780 insertion Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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
- F02F7/00—Casings, e.g. crankcases
- F02F7/006—Camshaft or pushrod housings
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Connection Of Plates (AREA)
- Gasket Seals (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、ロッカカバーの
取付構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rocker cover mounting structure.
【０００２】[0002]
【従来の技術】エンジンにおいては、シリンダヘッドの
上面にロッカカバーが取り付けられ、バルブ関係（ロッ
カアームなど）への潤滑油が漏れないよう、シリンダヘ
ッドとの接合面を密封するガスケットが介装される。2. Description of the Related Art In an engine, a rocker cover is mounted on an upper surface of a cylinder head, and a gasket for sealing a joint surface with a cylinder head is interposed so that lubricating oil does not leak to a valve (rocker arm or the like). .
【０００３】図５はロッカカバー１の取付状態を表すも
のであり、ロッカカバー１は、プレスで一体成形の基体
２と、その内面に裏打ちされる補強板３と、などから構
成される。基体１の開口縁部にフランジ４が設けられ、
フランジ４にガスケット５の抑え部６が形成される。補
強板３の下端部（ロッカカバー１の開口側）にフランジ
４側の抑え部６に対応する抑え部７が形成される。FIG. 5 shows a state where the rocker cover 1 is mounted. The rocker cover 1 includes a base 2 integrally formed by pressing and a reinforcing plate 3 lined on the inner surface of the base 2. A flange 4 is provided at an opening edge of the base 1,
The holding portion 6 of the gasket 5 is formed on the flange 4. At the lower end of the reinforcing plate 3 (opening side of the rocker cover 1), a holding portion 7 corresponding to the holding portion 6 on the flange 4 side is formed.
【０００４】ロッカカバー１のフランジ４において、ガ
スケット５を抑え部６の内側に填め付け、フランジ４お
よびガスケット５を貫通するボルト８により、シリンダ
ヘッド１０の上面（取付面）に締め付けられる（図６、
参照）。１１は位置決め用の座金、１２は締付用の座金
である。In the flange 4 of the rocker cover 1, a gasket 5 is fitted inside the holding portion 6, and is fastened to the upper surface (mounting surface) of the cylinder head 10 by bolts 8 penetrating the flange 4 and the gasket 5 (FIG. 6). ,
reference). Reference numeral 11 denotes a washer for positioning, and 12 denotes a washer for tightening.
【０００５】ガスケット５は、図７のような平面形状に
形成され、各コーナ（角部）および縦（長手方向）の両
辺にボルト挿通穴１４のボス部１５が配置される。ま
た、ガスケット５の上面（ロッカカバー１のフランジ４
側）および下面（シリンダヘッド１０の上面側）に凸条
のリップ１６が備えられる。The gasket 5 is formed in a plane shape as shown in FIG. 7, and boss portions 15 of bolt insertion holes 14 are arranged at each corner (corner) and both sides in the longitudinal direction (longitudinal direction). In addition, the upper surface of the gasket 5 (the flange 4 of the rocker cover 1)
Side) and a lower surface (the upper surface side of the cylinder head 10) are provided with ridges 16 of convex stripes.
【０００６】[0006]
【発明が解決しようとする課題】補強板３の抑え部７
は、各辺の直線部において、ガスケット５に添うもの
の、各コーナや両辺のボス部に対応する曲線部になる
と、ガスケット５に添わせるのが難しく、各ボス部１５
との間に隙間が生じやすい（図９、参照）。そのため、
ボルト８の締め付けに伴うガスケット５の内側への変形
により、面圧が十分に確保されず、ガスケット５のリッ
プ部１６と相手側（シリンダヘッド１０）との位置ずれ
が生じ、ガスケット５の密封性が低下する可能性が考え
られる。The holding portion 7 of the reinforcing plate 3
In the straight portion on each side, the gasket 5 is attached, but when it becomes a curved portion corresponding to each corner or the boss portion on both sides, it is difficult to attach the gasket 5, and each boss portion 15
(See FIG. 9). for that reason,
Due to the inward deformation of the gasket 5 due to the tightening of the bolt 8, the surface pressure is not sufficiently ensured, and the lip portion 16 of the gasket 5 is displaced from the counterpart (cylinder head 10), and the gasket 5 is sealed. May be reduced.
【０００７】この発明は、このような不具合の改善効果
が得られる有効な対策手段の提供を目的とする。[0007] It is an object of the present invention to provide an effective countermeasure capable of obtaining the effect of improving such a problem.
【０００８】[0008]
【課題を解決するための手段】第１の発明は、シリンダ
ヘッドにガスケットを介してボルトにより締め付けられ
るロッカカバーの取付構造において、ボルトの締め付け
に伴うガスケットの変形を規制する抑え部をロッカカバ
ーに設ける一方、ガスケットのボルト挿通穴のボス部に
ロッカカバーの抑え部との間でこれに突き当たる出っ張
りを形成したことを特徴とする。According to a first aspect of the present invention, there is provided a rocker cover mounting structure in which a gasket is fastened to a cylinder head via a gasket. On the other hand, a protrusion is formed in the boss portion of the bolt insertion hole of the gasket between the holding portion of the rocker cover and the boss portion.
【０００９】第２の発明は シリンダヘッドにガスケッ
トを介してボルトにより締め付けられるロッカカバーの
取付構造において、ボルトの締め付けに伴うガスケット
の変形を規制する抑え部をロッカカバーに設ける一方、
ガスケットのコーナ部に位置するボルト挿通穴のボス部
にロッカカバーの抑え部との間でこれに突き当たる出っ
張りを形成したことを特徴とする。According to a second aspect of the present invention, in a rocker cover mounting structure in which a gasket is tightened to a cylinder head via a gasket, a rocker cover is provided with a suppressing portion for restricting deformation of the gasket due to tightening of the bolt.
The boss portion of the bolt insertion hole located at the corner portion of the gasket has a protrusion formed between the boss portion and the holding portion of the rocker cover.
【００１０】[0010]
【発明の効果】第１の発明では、ボス部の出っ張りがロ
ッカカバーの抑え部に突き当たるので、ボルトの締め付
けに伴うガスケットの変形が規制される。このため、ロ
ッカカバーの抑え部をガスケットのボス部に添わせるべ
く大きく曲げる必要がなくなり、ガスケットの密封性を
容易かつ廉価に改善できる。According to the first aspect of the present invention, since the protrusion of the boss abuts against the holding portion of the rocker cover, the deformation of the gasket due to the tightening of the bolt is restricted. For this reason, it is not necessary to largely bend the holding portion of the rocker cover so as to be attached to the boss portion of the gasket, and the sealing performance of the gasket can be easily and inexpensively improved.
【００１１】第２の発明では、大きく曲がるコーナにお
いて、ボス部の出っ張りがロッカカバーの抑え部に突き
当たるので、ボルトの締め付けに伴うガスケットの変形
が規制される。このため、ロッカカバーの抑え部を無理
に大きく曲げてガスケットのボス部に添わせる必要がな
くなり、ガスケットの密封性を容易かつ廉価に改善でき
る。In the second aspect of the present invention, in the corner that bends greatly, the protrusion of the boss abuts against the holding portion of the rocker cover, so that the deformation of the gasket due to the tightening of the bolt is restricted. For this reason, it is not necessary to forcibly and largely bend the holding portion of the rocker cover and attach it to the boss portion of the gasket, so that the sealing performance of the gasket can be easily and inexpensively improved.
【００１２】[0012]
【発明の実施の形態】図１はガスケット２０の平面形状
を表すものであり、各コーナ（角部）および縦（長手方
向）の両辺にボルト挿通穴２１のボス部２２が配置さ
れ、上面（ロッカカバーのフランジ側）および下面（シ
リンダヘッドの上面側）に凸条のリップ２３が備えられ
る。なお、説明の便宜上、図５〜図９と同じ部品につい
ては、同じ符号を付ける。FIG. 1 shows a plan view of a gasket 20, in which bosses 22 of bolt insertion holes 21 are arranged at each corner (corner) and both sides in the longitudinal direction (longitudinal direction). Ridges 23 are provided on the bottom side (on the flange side of the rocker cover) and on the bottom side (on the top side of the cylinder head). For convenience of description, the same components as those in FIGS. 5 to 9 are denoted by the same reference numerals.
【００１３】図示しないが、ロッカカバー１は、従前
（図５，図９、参照）と同じく、プレスで一体成形の基
体２と、その内面に裏打ちされる補強板３と、などから
構成される。基体２の開口縁部にフランジ４が設けら
れ、フランジ４にガスケット２０の抑え部６が形成され
る。補強板３の下端部（ロッカカバー１の開口側）にフ
ランジ４側の抑え部６に対応する抑え部７が形成され
る。Although not shown, the rocker cover 1 is composed of a base 2 integrally formed by pressing and a reinforcing plate 3 lined on the inner surface of the base 2 as in the prior art (see FIGS. 5 and 9). . A flange 4 is provided at an opening edge of the base 2, and the holding portion 6 of the gasket 20 is formed on the flange 4. At the lower end of the reinforcing plate 3 (opening side of the rocker cover 1), a holding portion 7 corresponding to the holding portion 6 on the flange 4 side is formed.
【００１４】ガスケット２０においては、縦の両辺に配
置の各ボス部２２にロッカカバー１の抑え部７との間で
これに突き当たる出っ張り部２５がガスケット２０の内
側へボス部２２の輪郭を拡大する具合に形成される。同
じく各コーナ部に配置のボス部２２にロッカカバー１の
抑え部７との間でこれに突き当たる出っ張り部２６がガ
スケット２０の内側へ突起状に形成される。なお、図２
はＤ−Ｄ断面、図３はＢ−Ｂ断面、図４はＥ−Ｅ断面、
をそれぞれ表すものである。In the gasket 20, a projecting portion 25 that abuts against each of the boss portions 22 arranged on both vertical sides with the holding portion 7 of the rocker cover 1 to enlarge the contour of the boss portion 22 inside the gasket 20. Formed. Similarly, a projecting portion 26 is formed in the boss portion 22 disposed at each corner portion between the holding portion 7 of the rocker cover 1 and the projecting portion 26 which abuts on the boss portion 22 to project inside the gasket 20. Note that FIG.
Is a DD section, FIG. 3 is a BB section, FIG. 4 is an EE section,
Respectively.
【００１５】ロッカカバー１のフランジ４において、ガ
スケット２０は、抑え部６の内側に填め付けると、各ボ
ス部の出っ張り部２５，２６が補強板３の抑え部７に突
き当る。そして、ロッカカバー１は、フランジ４を介し
てボルト８により、シリンダヘッド１０の上面に締め付
けられる（図５，図６、参照）。In the flange 4 of the rocker cover 1, when the gasket 20 is fitted inside the holding portion 6, the projecting portions 25 and 26 of each boss abut against the holding portion 7 of the reinforcing plate 3. Then, the rocker cover 1 is fastened to the upper surface of the cylinder head 10 by bolts 8 via the flange 4 (see FIGS. 5 and 6).
【００１６】ガスケット２０は、ボルト８の締付トルク
による、各ボス部２５，２６の内側への変形について
も、出っ張り部２５，２６を介して補強板３の抑え部７
に規制されるので、面圧が十分に確保され、カバー内部
の潤滑油が漏れないよう、シリンダヘッド１０の上面と
ロッカカバー１のフランジ４との間を良好に密封するこ
とが可能となる。The gasket 20 also prevents the deformation of the bosses 25 and 26 due to the tightening torque of the bolts 8 from inwardly protruding from the bosses 25 and 26 via the protrusions 25 and 26.
Therefore, the surface pressure is sufficiently secured, and the space between the upper surface of the cylinder head 10 and the flange 4 of the rocker cover 1 can be sealed well so that the lubricating oil inside the cover does not leak.
【００１７】したがって、ロッカカバー１の補強板３に
形成される抑え部７をガスケット２０のボス部２２に添
わせるべく大きく曲げる必要がなくなり、ガスケット２
０の密封性を容易かつ廉価に改善できるのである。とく
に大きく曲がるコーナ部において、補強板３の抑え部７
を無理に大きく曲げてガスケット２０のボス部２２に添
わせる必要はなく、補強板３の機能向上をもたらす効果
も期待できる。Therefore, it is not necessary to largely bend the holding portion 7 formed on the reinforcing plate 3 of the rocker cover 1 so as to be attached to the boss portion 22 of the gasket 20.
Thus, the sealing performance can be easily and inexpensively improved. In particular, at the corners that are largely bent, the holding portions 7 of the reinforcing plate 3
It is not necessary to forcibly bend it greatly and attach it to the boss portion 22 of the gasket 20, and an effect of improving the function of the reinforcing plate 3 can be expected.
【００１８】なお、出っ張り部２５，２６は、必ずしも
ガスケット２０に一体成形しなくても良く、異質の材料
で形成したものを固着するようにしても良い。The protrusions 25 and 26 do not necessarily have to be formed integrally with the gasket 20, but may be made of a different material.
【図１】この発明の実施形態を表すガスケットの平面図
である。FIG. 1 is a plan view of a gasket showing an embodiment of the present invention.
【図２】同じく図１のＤ−Ｄ断面図である。FIG. 2 is a sectional view taken along line DD of FIG. 1;
【図３】同じく図１のＢ−Ｂ断面図である。FIG. 3 is a sectional view taken along line BB of FIG. 1;
【図４】同じく図１のＥ−Ｅ断面図である。FIG. 4 is a sectional view taken along line EE of FIG. 1;
【図５】ロッカカバーの取付状態を表す断面図である。FIG. 5 is a cross-sectional view illustrating an attached state of a rocker cover.
【図６】同じく一部の拡大断面図である。FIG. 6 is a partially enlarged sectional view of the same.
【図７】従来のガスケットを表す平面図である。FIG. 7 is a plan view showing a conventional gasket.
【図８】同じく図７のＢ−Ｂ断面図である。8 is a sectional view taken along the line BB of FIG. 7;
【図９】ロッカカバーの底面図である。FIG. 9 is a bottom view of the rocker cover.
１ ロッカカバー ３ 補強板 ４ フランジ ６，７ 抑え部 ８ ボルト １０ シリンダヘッド ２０ ガスケット ２１ ボルト挿通穴 ２２ ボス部 ２５，２６ 出っ張り部 DESCRIPTION OF SYMBOLS 1 Rocker cover 3 Reinforcement plate 4 Flange 6,7 Suppression part 8 Bolt 10 Cylinder head 20 Gasket 21 Bolt insertion hole 22 Boss part 25,26 Projection part
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3G024 AA72 BA18 BA21 FA00 3J001 FA12 GA01 HA10 JA03 KA23 KB01 3J040 AA01 AA12 BA01 EA01 HA02 HA03 HA09 HA19 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3G024 AA72 BA18 BA21 FA00 3J001 FA12 GA01 HA10 JA03 KA23 KB01 3J040 AA01 AA12 BA01 EA01 HA02 HA03 HA09 HA19
Claims (2)
トにより締め付けられるロッカカバーの取付構造におい
て、ボルトの締め付けに伴うガスケットの変形を規制す
る抑え部をロッカカバーに設ける一方、ガスケットのボ
ルト挿通穴のボス部にロッカカバーの抑え部との間でこ
れに突き当たる出っ張りを形成したことを特徴とするロ
ッカカバーの取付構造。In a rocker cover mounting structure which is fastened to a cylinder head by bolts via a gasket, a suppressing portion for restricting deformation of the gasket due to tightening of the bolts is provided on the rocker cover, while a boss in a bolt insertion hole of the gasket is provided. A mounting structure for a rocker cover, characterized in that a protrusion is formed in the portion between the holding portion of the rocker cover and the protrusion.
トにより締め付けられるロッカカバーの取付構造におい
て、ボルトの締め付けに伴うガスケットの変形を規制す
る抑え部をロッカカバーに設ける一方、ガスケットのコ
ーナ部に位置するボルト挿通穴のボス部にロッカカバー
の抑え部との間でこれに突き当たる出っ張りを形成した
ことを特徴とするロッカカバーの取付構造。2. A rocker cover mounting structure in which a gasket is fastened to a cylinder head by a bolt via a gasket, while the rocker cover is provided with a suppressing portion for restricting deformation of the gasket due to the tightening of the bolt, and is located at a corner of the gasket. A rocker cover mounting structure, wherein a protrusion is formed in a boss portion of the bolt insertion hole between the boss portion and the holding portion of the rocker cover so as to abut the boss portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000247394A JP2002061539A (en) | 2000-08-17 | 2000-08-17 | Rocker cover installation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000247394A JP2002061539A (en) | 2000-08-17 | 2000-08-17 | Rocker cover installation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002061539A true JP2002061539A (en) | 2002-02-28 |
Family
ID=18737498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000247394A Pending JP2002061539A (en) | 2000-08-17 | 2000-08-17 | Rocker cover installation structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002061539A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005195091A (en) * | 2004-01-07 | 2005-07-21 | Mitsubishi Cable Ind Ltd | Gasket |
| KR100817176B1 (en) * | 2007-12-10 | 2008-03-27 | (주)성도엔지니어링기술사/건축사사무소 | Branch of electrical communication line |
| WO2008126597A1 (en) | 2007-03-30 | 2008-10-23 | Nok Corporation | Sealing structure and gasket |
| KR101078855B1 (en) | 2010-02-04 | 2011-11-03 | 국방과학연구소 | Gasket and having storage can having the same |
-
2000
- 2000-08-17 JP JP2000247394A patent/JP2002061539A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005195091A (en) * | 2004-01-07 | 2005-07-21 | Mitsubishi Cable Ind Ltd | Gasket |
| WO2008126597A1 (en) | 2007-03-30 | 2008-10-23 | Nok Corporation | Sealing structure and gasket |
| US8136819B2 (en) | 2007-03-30 | 2012-03-20 | Nok Corporation | Sealing structure and gasket |
| KR100817176B1 (en) * | 2007-12-10 | 2008-03-27 | (주)성도엔지니어링기술사/건축사사무소 | Branch of electrical communication line |
| KR101078855B1 (en) | 2010-02-04 | 2011-11-03 | 국방과학연구소 | Gasket and having storage can having the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2002061539A (en) | Rocker cover installation structure | |
| JP2009097483A (en) | Sealing material and sealing structure | |
| JPH1191627A (en) | Hood structure for vehicle | |
| JP2019123465A (en) | Seal structure of oil supply port box | |
| JPH0893918A (en) | Metal gasket | |
| JPH09196179A (en) | Laminated metal gasket with recess for coating flow prevention | |
| JP3175473B2 (en) | High mount stop lamp mounting structure | |
| JPH10266892A (en) | Engine ladder frame structure | |
| JPH0138283Y2 (en) | ||
| JP4248309B2 (en) | Mounting structure for rocker cover of internal combustion engine | |
| JP2018084172A (en) | Internal combustion engine | |
| JPH1061489A (en) | Seal structure of internal combustion engine | |
| JP2882084B2 (en) | Engine reinforcement structure | |
| JPS6350457Y2 (en) | ||
| JP2006002743A (en) | Sealing structure between engine end plate and cylinder head | |
| JP3079845B2 (en) | Head cover structure | |
| JPH07257276A (en) | Door mirror mounting structure | |
| JPH0734205Y2 (en) | Engine oil pan structure | |
| JP2954929B2 (en) | Metal gasket | |
| JPS635934Y2 (en) | ||
| JP3823761B2 (en) | Oil pan | |
| KR200155321Y1 (en) | Timing belt cover | |
| JPS5939149Y2 (en) | Cylinder head cover | |
| JP3042288B2 (en) | Sleeve structure of cylinder block | |
| JP2000240794A (en) | Seal structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20050329 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20071109 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20071113 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080115 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20080430 |