JPH0752352Y2 - Oil pan - Google Patents
Oil panInfo
- Publication number
- JPH0752352Y2 JPH0752352Y2 JP1987142809U JP14280987U JPH0752352Y2 JP H0752352 Y2 JPH0752352 Y2 JP H0752352Y2 JP 1987142809 U JP1987142809 U JP 1987142809U JP 14280987 U JP14280987 U JP 14280987U JP H0752352 Y2 JPH0752352 Y2 JP H0752352Y2
- Authority
- JP
- Japan
- Prior art keywords
- oil pan
- bead
- orthogonal
- bead portion
- flange 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.)
- Expired - Lifetime
Links
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、オイルパンの改良に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to improvement of an oil pan.
一般に、エンジンの最下部には、潤滑オイルをプールし
ておくために、例えば実開昭59-148455号公報に開示さ
れるようなオイルパンが取り付けられている。Generally, an oil pan as disclosed in, for example, Japanese Utility Model Laid-Open No. 59-148455 is attached to the bottom of the engine in order to pool lubricating oil.
第７図はこの種のオイルパンを示し、図に於て、符号１
は制振鋼板で一体に成形されたオイルパンで、このオイ
ルパン１の開口縁には取付用フランジ部（以下「フラン
ジ部」という）３が形成されており、このフランジ部３
がクランクケースフランジ部にボルト締めされて、オイ
ルパン１がクランクケースに取り付くようになってい
る。FIG. 7 shows an oil pan of this kind, and in the drawing, reference numeral 1
Is an oil pan integrally formed of a damping steel plate, and a mounting flange portion (hereinafter referred to as “flange portion”) 3 is formed at the opening edge of the oil pan 1.
Is bolted to the crankcase flange so that the oil pan 1 can be attached to the crankcase.
そして、上記フランジ部３には、第８図に示すようにそ
の全周に亘って延びる二重のビード部5,7と、このビー
ド部5,7に直交する直交ビード部９が複数設けられてお
り、又、当該各直交ビード部９にはボルト孔11が設けら
れた構造となっている。而して、上記ビード部5,7及び
直交ビード部９によって、オイルパン１をボルト締めす
る際の面圧を高め、又、シール面として利用することに
よりオイル漏れを防ぐようになっている。尚、第９図は
第７図及び第８図のＩ−Ｉ線断面図、第10図は第７図及
び第８図のII-II線断面図である。As shown in FIG. 8, the flange portion 3 is provided with a plurality of double bead portions 5 and 7 extending over the entire circumference thereof and a plurality of orthogonal bead portions 9 orthogonal to the bead portions 5 and 7. In addition, each orthogonal bead portion 9 has a structure in which a bolt hole 11 is provided. Thus, the bead portions 5 and 7 and the orthogonal bead portion 9 increase the surface pressure when the oil pan 1 is bolted, and are used as a sealing surface to prevent oil leakage. Incidentally, FIG. 9 is a sectional view taken along the line II of FIG. 7 and FIG. 8, and FIG. 10 is a sectional view taken along the line II-II of FIG. 7 and FIG.
然し乍ら、従来のオイルパン１は制振鋼板を用いて成形
されているものの、エンジン振動によって上記ボルト孔
11の周囲、特にフランジ部３に設けた内側のビード部５
の内周側と直交ビード部９が直交する段差部分13に大き
な応力が集中し、その結果、第11図に示すようにこの段
差部分13からボルト孔11方向にかけて亀裂15が発生する
虞があった。尚、ビード部７と直交ビード部９が直交す
る段差部分17に応力がかかっても、フランジ部３の外周
側は第９図の如く開放されているために応力は緩和さ
れ、当該段差部分17に亀裂が発生することはない。However, although the conventional oil pan 1 is formed by using the vibration damping steel plate, the bolt hole is caused by the vibration of the engine.
Around the circumference of 11, especially the inner bead 5 provided on the flange 3.
A large stress is concentrated on the step portion 13 where the inner peripheral side of the and the orthogonal bead portion 9 are orthogonal to each other, and as a result, a crack 15 may occur from the step portion 13 toward the bolt hole 11 as shown in FIG. It was Even if stress is applied to the step portion 17 where the bead portion 7 and the orthogonal bead portion 9 are orthogonal to each other, the stress is relieved because the outer peripheral side of the flange portion 3 is opened as shown in FIG. There will be no cracks in the.
本考案は斯かる実情に鑑み案出されたもので、フランジ
部に応力集中による亀裂が発生する虞のないオイルパン
を提供すること目的とする。The present invention has been devised in view of such circumstances, and an object of the present invention is to provide an oil pan that is free from the risk of cracks due to stress concentration in the flange portion.
斯かる目的を達成するための本考案は、取付用フランジ
部に、その取付用フランジ部の全周に亘って二重のビー
ド部とそのビード部に直交して延びる複数の直交ビード
部を設けると共に、その各直交ビード部にボルト孔を設
けたオイルパンに於て、上記直交ビード部を内側ビード
部から外周方向に延設したことを特徴とする。In order to achieve such an object, the present invention provides a mounting flange portion with a double bead portion over the entire circumference of the mounting flange portion and a plurality of orthogonal bead portions extending orthogonally to the bead portion. In addition, in the oil pan in which the bolt holes are provided in each of the orthogonal bead portions, the orthogonal bead portion is extended from the inner bead portion in the outer peripheral direction.
本考案によれば、エンジン振動によってボルト孔の周囲
に応力がかかっても、フランジ部の全周に亘って設けた
ビード部の内側ビード部の内周側には直交ビード部との
段差部分がないため、応力は内側ビード部の内周側の全
面に均一に働くこととなる。According to the present invention, even if stress is applied to the periphery of the bolt hole due to engine vibration, a step portion with the orthogonal bead portion is formed on the inner peripheral side of the inner bead portion of the bead portion provided over the entire circumference of the flange portion. Since there is no stress, the stress uniformly acts on the entire inner peripheral side of the inner bead portion.
以下、本考案の実施例を図面に基づき詳細に説明する。
尚、上記従来例と同一要素は同一符号を以って表示す
る。Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The same elements as those of the conventional example are indicated by the same reference numerals.
第１図乃至第３図は本考案に係るオイルパンの第一実施
例を示し、図に於て、符号19はクランクケースフランジ
部にボルト締めされるオイルパン21のフランジ部で、こ
のフランジ部19の全周には第７図に示すオイルパン１と
同様、二重のビード部5,7が設けられている。そして、
本実施例にあっては、内側のビード部５からフランジ部
19の外周方向（図中、矢印Ａ方向）に延びる直交ビード
部23をビード部5,7と直交させて複数設けると共に、こ
の直交ビード部23に夫々ボルト孔11を設けたことを特徴
とする。従って、本実施例に係るオイルパン21にあって
は、第２図及び第３図に示すようにビード部５の内周側
に直交ビード部23との段差部分がなく、ビード部５の内
周側のフランジ部19aは全周に亘って平坦な形状となっ
ている。尚、第２図は第１図のIII-III線断面図、第３
図は第１図のIV-IV線断面図である。1 to 3 show a first embodiment of an oil pan according to the present invention, in which reference numeral 19 is a flange portion of an oil pan 21 bolted to a crankcase flange portion. Similar to the oil pan 1 shown in FIG. 7, double beads 5 and 7 are provided on the entire circumference of 19. And
In this embodiment, the inner bead portion 5 to the flange portion
A plurality of orthogonal bead portions 23 extending in the outer peripheral direction of 19 (direction of arrow A in the figure) are provided orthogonal to the bead portions 5 and 7, and bolt holes 11 are provided in each of the orthogonal bead portions 23. . Therefore, in the oil pan 21 according to the present embodiment, as shown in FIG. 2 and FIG. 3, there is no step portion with the orthogonal bead portion 23 on the inner peripheral side of the bead portion 5, and The flange portion 19a on the circumferential side has a flat shape over the entire circumference. Incidentally, FIG. 2 is a sectional view taken along line III-III in FIG.
The figure is a sectional view taken along the line IV-IV in FIG.
本実施例はこのように構成されているから、これをクラ
ンクケースに取り付けるには、従来と同様、ボルト孔11
にボルトを挿入してクランクケースフランジ部にボルト
締めすればよい。そして、本実施例は第７図に示す従来
例と異なり、ビード部５の内周側のフランジ部19aに直
交ビード部23との段差部分がなく、特殊フランジ部19a
は全周に亘って平坦な形状となっているから、エンジン
振動によってボルト孔11の周囲に応力がかかっても、応
力は部分的に集中することなく上記フランジ部19の全周
に均一に働くこととなる。Since this embodiment is configured in this way, the bolt hole 11 can be attached to the crankcase in the same manner as in the conventional case.
Insert the bolt into and tighten the bolt to the crankcase flange. Unlike the conventional example shown in FIG. 7, this embodiment does not have a step portion with the orthogonal bead portion 23 in the flange portion 19a on the inner peripheral side of the bead portion 5, and the special flange portion 19a
Has a flat shape over the entire circumference, so that even if stress is applied to the periphery of the bolt hole 11 due to engine vibration, the stress acts uniformly on the entire circumference of the flange portion 19 without being partially concentrated. It will be.
従って、本実施例によれば、長期に亘る使用によって
も、エンジン振動によってオイルパン21のフランジ部19
に応力集中による亀裂が発生することがない。Therefore, according to the present embodiment, the flange portion 19 of the oil pan 21 is oscillated by the engine vibration even after long-term use.
There is no cracking due to stress concentration.
第４図は本考案の第二実施例に係るオイルパン25のフラ
ンジ部27の拡大平面図を示し、この実施例は、上記第一
実施例に於けるビード部５に代えて、第５図及び第６図
に示すようにビード部７の内周側に、その内周がフラン
ジ部27の内方折曲部27aとなる幅広のビード部5aをフラ
ンジ27の全周に亘って設けたものである。尚、上記従来
例と同一要素は同一符号を以って表示する。又、第５図
は第４図のＶ−Ｖ線断面図、第６図は第４図のVI-VI線
断面図である。FIG. 4 is an enlarged plan view of the flange portion 27 of the oil pan 25 according to the second embodiment of the present invention. This embodiment is similar to FIG. 5 instead of the bead portion 5 in the first embodiment. And, as shown in FIG. 6, a wide bead portion 5a whose inner circumference is an inwardly bent portion 27a of the flange portion 27 is provided on the inner circumferential side of the bead portion 7 over the entire circumference of the flange 27. Is. The same elements as those of the conventional example are indicated by the same reference numerals. 5 is a sectional view taken along the line VV of FIG. 4, and FIG. 6 is a sectional view taken along the line VI-VI of FIG.
そして、この実施例によれば、第11図の如き段差部分13
がビード部5aの内周側になく、ビード部5aの内周側は全
周に亘って平坦な形状となっているから、エンジン振動
によってボルト孔11の周囲に応力がかかっても、応力は
ビード部5aの内周側に全面に均一に働くこととなる。
尚、このオイルパン25の取付けは、ボルト孔11を介して
これをクランクケースフランジ部にボルト締めすればよ
い。Then, according to this embodiment, the step portion 13 as shown in FIG.
Is not on the inner peripheral side of the bead portion 5a, and the inner peripheral side of the bead portion 5a has a flat shape over the entire circumference, so even if stress is applied to the periphery of the bolt hole 11 due to engine vibration, the stress is not The entire inner surface of the bead portion 5a works uniformly.
The oil pan 25 may be attached by bolting it to the crankcase flange through the bolt hole 11.
従って、本実施例によっても、オイルパン25のフランジ
部27に応力集中による亀裂が発生することがない。Therefore, also in this embodiment, the flange 27 of the oil pan 25 does not crack due to stress concentration.
以上述べたように、本考案によれば、エンジン振動によ
って応力がかかっても、オイルパンのフランジ部に応力
集中による亀裂が発生することがない。As described above, according to the present invention, even if stress is applied by engine vibration, cracks due to stress concentration do not occur in the flange portion of the oil pan.
第１図は本考案の第一実施例に係るオイルパンのフラン
ジ部の拡大平面図、第２図は第１図のIII-III線断面
図、第３図は第１図のIV-IV線断面図、第４図は本考案
の第二実施例に係るオイルパンのフランジ部の拡大平面
図、第５図は第４図のＶ−Ｖ線断面図、第６図は第４図
のVI-VI線断面図、第７図は従来のオイルパンの全体斜
視図、第８図は第７図に示すオイルパンのフランジ部の
正面図、第９図は第７図及び第８図のＩ−Ｉ線断面図、
第10図は第７図及び第８図のII-II線断面図、第11図は
第８図に示すフランジ部の拡大正面図である。 5,5a,7……ビード部、11……ボルト孔、19,27……フラ
ンジ部、21,25……オイルパン、23……直交ビード部。1 is an enlarged plan view of a flange portion of an oil pan according to a first embodiment of the present invention, FIG. 2 is a sectional view taken along the line III-III of FIG. 1, and FIG. 3 is a line IV-IV of FIG. Sectional view, FIG. 4 is an enlarged plan view of a flange portion of an oil pan according to a second embodiment of the present invention, FIG. 5 is a sectional view taken along line VV of FIG. 4, and FIG. 6 is VI of FIG. -VI line sectional view, FIG. 7 is an overall perspective view of a conventional oil pan, FIG. 8 is a front view of a flange portion of the oil pan shown in FIG. 7, FIG. 9 is I of FIG. 7 and FIG. -I line sectional view,
10 is a sectional view taken along the line II-II of FIGS. 7 and 8, and FIG. 11 is an enlarged front view of the flange portion shown in FIG. 5,5a, 7 …… Bead part, 11 …… Bolt hole, 19,27 …… Flange part, 21,25 …… Oil pan, 23 …… Orthogonal bead part.
Claims (1)
部の全周に亘って二重のビード部とそのビード部に直交
して延びる複数の直交ビード部を設けると共に、その各
直交ビード部にボルト孔を設けたオイルパンに於て、上
記直交ビード部を内側ビード部から外周方向に延設した
ことを特徴とするオイルパン。1. A mounting flange portion is provided with a double bead portion and a plurality of orthogonal bead portions extending orthogonally to the bead portion over the entire circumference of the mounting flange portion, and each orthogonal bead portion thereof. An oil pan in which a bolt hole is formed in the oil pan, wherein the orthogonal bead portion is extended from the inner bead portion in the outer peripheral direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987142809U JPH0752352Y2 (en) | 1987-09-17 | 1987-09-17 | Oil pan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987142809U JPH0752352Y2 (en) | 1987-09-17 | 1987-09-17 | Oil pan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6446454U JPS6446454U (en) | 1989-03-22 |
| JPH0752352Y2 true JPH0752352Y2 (en) | 1995-11-29 |
Family
ID=31409069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987142809U Expired - Lifetime JPH0752352Y2 (en) | 1987-09-17 | 1987-09-17 | Oil pan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0752352Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101852636B1 (en) * | 2011-12-19 | 2018-04-27 | 두산인프라코어 주식회사 | Oil Pan of Engine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50135839U (en) * | 1974-04-24 | 1975-11-08 | ||
| JPS60141452U (en) * | 1984-02-29 | 1985-09-19 | いすゞ自動車株式会社 | Oil pan structure |
-
1987
- 1987-09-17 JP JP1987142809U patent/JPH0752352Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6446454U (en) | 1989-03-22 |
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