JPH0547699Y2 - - Google Patents
Info
- Publication number
- JPH0547699Y2 JPH0547699Y2 JP1988078990U JP7899088U JPH0547699Y2 JP H0547699 Y2 JPH0547699 Y2 JP H0547699Y2 JP 1988078990 U JP1988078990 U JP 1988078990U JP 7899088 U JP7899088 U JP 7899088U JP H0547699 Y2 JPH0547699 Y2 JP H0547699Y2
- Authority
- JP
- Japan
- Prior art keywords
- seam
- container
- flange
- welding
- fuel tank
- 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
- 238000003466 welding Methods 0.000 claims description 19
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000002828 fuel tank Substances 0.000 description 14
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、上部容器と下部容器とを溶接するこ
とにより一体的に形成され、例えば自動車用の燃
料タンクとして用いられる密閉容器に関するもの
である。[Detailed description of the invention] [Field of industrial application] The present invention relates to a sealed container that is integrally formed by welding an upper container and a lower container and is used as a fuel tank for an automobile, for example. .
従来の燃料タンクの一例を第２図ａ，ｂ，ｃに
示す。
An example of a conventional fuel tank is shown in FIGS. 2a, b, and c.
上記従来の燃料タンク１では、同図に示す如
く、上部容器２の外周縁部に形成されたつば部２
ａと下部容器３の外周縁部に形成されたつば部３
ａとを図外の一対の円盤電極により一体的に教示
し、上記円盤電極を回転させながら加圧通電して
両つば部２ａ，３ａをシーム溶接することにより
形成されている。 In the conventional fuel tank 1 described above, as shown in the figure, a flange 2 is formed on the outer peripheral edge of the upper container 2.
a and the flange 3 formed on the outer peripheral edge of the lower container 3
a are integrally taught by a pair of disk electrodes (not shown), and the two flange portions 2a and 3a are seam-welded by applying pressure and current while rotating the disk electrodes.
尚この場合、同図ｃに示す如く、つば部２ａ，
３ａの面間にはシーム溶着部４が形成され、この
シーム溶着部４の作用により、燃料タンク１全体
の強度及び気密性が保たれる。 In this case, as shown in FIG.
A seam welded portion 4 is formed between the surfaces of the fuel tank 3a, and the action of this seam welded portion 4 maintains the strength and airtightness of the entire fuel tank 1.
ところが、上記したような従来構造の燃料タン
ク１では、シーム溶接をする際につば部２ａ，３
ａがかなりの力で挟持されて加圧されるため、こ
のつば部２ａ，３ａの面間に形成されるシーム溶
着部４が断続的に円盤電極の移動方向に扱かれて
引つ張られ、肉厚の薄い部分が生じる。
However, in the fuel tank 1 having the conventional structure as described above, when seam welding is performed, the flange portions 2a and 3 are
Since a is held and pressurized with considerable force, the seam weld 4 formed between the surfaces of the flange parts 2a and 3a is intermittently pulled and pulled in the direction of movement of the disc electrode. A thinner wall appears.
そのため、この部分において割れを生じ易く、
強度的及び気密性に問題を生じる場合があつた。 Therefore, cracks are likely to occur in this part,
In some cases, problems occurred in terms of strength and airtightness.
そこで、本考案の目的とするところは、強度及
び気密性の向上を図ることのできる構造を有する
密閉容器を提供することにある。 Therefore, an object of the present invention is to provide a closed container having a structure that can improve strength and airtightness.
上記目的を達成するために、本考案が採用する
主たる手段は、その要旨とするところが、上部容
器の外周縁部に形成されたつば部と下部容器の外
周縁部に形成されたつば部とをシーム溶接により
接合してなる密閉容器において、上記両つば部間
のシーム溶着部に沿つて略平行に形成されるシー
ム圧接部がレーザ溶接されてなる点に係る密閉容
器である。
In order to achieve the above object, the main means adopted by the present invention is to provide a collar formed on the outer peripheral edge of the upper container and a collar formed on the outer peripheral edge of the lower container. In the sealed container joined by seam welding, the seam pressure welded portion formed substantially parallel to the seam welded portion between the two flange portions is laser welded.
本考案に係る密閉容器は上記したように構成さ
れているため、該密閉容器のつば部には、シーム
溶接することにより形成されるシーム溶着部に沿
つて平行に、レーザ溶接により連続性のあるレー
ザ溶接部が形成される。上記レーザ溶接は非接触
で行われるため、つば部の一部が従来のシーム溶
着部の場合のように断続的に引つ張られて割れを
生じることはない。
Since the airtight container according to the present invention is constructed as described above, the flange of the airtight container is provided with continuous laser welding in parallel to the seam weld area formed by seam welding. A laser weld is formed. Since the above-mentioned laser welding is performed without contact, a part of the collar part is not intermittently stretched and cracked as in the case of conventional seam welding parts.
そして、連続性がある上記レーザ溶接部とシー
ム溶着部との二重溶接構造により上記密閉容器の
気密性が確保されるため、シーム溶接する際の一
対の円盤電極による両つば部の挟持力を小さくす
ることができる。従つて、シーム溶着部が断続的
に円盤電極の移動方向に扱かれて引つ張られるこ
とはなく、この部分に薄肉部が形成されて割れを
生じるということもなくなる。 Since the airtightness of the sealed container is ensured by the continuous double welding structure of the laser welded part and the seam welded part, the clamping force between the two flange parts by the pair of disk electrodes during seam welding is reduced. Can be made smaller. Therefore, the seam welded portion is not intermittently handled and stretched in the direction of movement of the disk electrode, and there is no possibility that a thin wall portion will be formed in this portion and cracks will occur.
以下添付図面を参照して、本考案を具体化した
実施例につき説明し、本考案の理解に供する。
尚、以下の実施例は、本考案を具体化した一例で
あつて、本考案の技術的範囲を限定する性格のも
のではない。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples embodying the present invention will be described below with reference to the accompanying drawings to provide an understanding of the present invention.
It should be noted that the following example is an example embodying the present invention, and is not intended to limit the technical scope of the present invention.
ここに、第１図は本考案の一実施例に係る密閉
容器の構造を示すものであつて、同図ａは平面
図、同図ｂは同図ａにおけるＢ−B′矢視図部分
拡大断面図である。 Here, FIG. 1 shows the structure of a sealed container according to an embodiment of the present invention, in which FIG. 1a is a plan view, and FIG. FIG.
また、第２図に示した前記従来の燃料タンク１
と共通する要素には、同一の符号を使用して説明
する。 Further, the conventional fuel tank 1 shown in FIG.
The same reference numerals will be used to describe elements common to the above.
この実施例に係る燃料タンク１′（密閉容器）
は、第１図ａ，ｂに示す如く、従来の燃料タンク
１と基本的構造をほぼ同様とし、上記従来の燃料
タンク１との相異点は、上記容器２のつば部２ａ
と下部容器３のつば部ａとの面間のシーム溶着部
４に沿つて平行に形成されるシーム圧接部５を、
レーザ溶接することにより溶着させたことであ
る。 Fuel tank 1' (closed container) according to this embodiment
As shown in FIGS. 1a and 1b, the basic structure is almost the same as that of the conventional fuel tank 1, and the difference from the conventional fuel tank 1 is the flange 2a of the container 2.
A seam pressure contact portion 5 formed parallel to the seam weld portion 4 between the surfaces of
This was done by laser welding.
上記シーム圧接部５は、一対の円盤電極により
つば部２ａ，３ａが一体的に挟持されて加圧通電
されることによりシーム溶着部４の両側に形成さ
れる。従つて、レーザ溶接を行う際、つば部２
ａ，３ａの面間を接触させるために、該つば部２
ａ，３ａを改めて挟持する必要がない。 The seam pressure-welded portions 5 are formed on both sides of the seam welded portion 4 by clamping the flange portions 2a, 3a integrally with a pair of disk electrodes and applying pressure and electricity to the flange portions 2a, 3a.
In order to bring the faces of the flange 2a and 3a into contact with each other,
There is no need to clamp a and 3a again.
上記レーザ溶接は、例えば炭酸ガスレーザが用
いられ、非接触で連続的に行われる。そして、上
記レーザ溶接をシーム圧接部５に実施することに
より、燃料タンク１′のつば部２ａ，３ａには、
シーム溶着部４に沿つて平行に、連続性のあるレ
ーザ溶接部６が形成される。尚この場合、上記レ
ーザ溶接部６は、シーム溶着部４の両側に形成さ
れた双方のシーム圧接部５に形成することも可能
である。 The laser welding is performed continuously without contact using, for example, a carbon dioxide laser. By performing the above laser welding on the seam pressure welding portion 5, the flange portions 2a and 3a of the fuel tank 1' have the following properties:
A continuous laser weld 6 is formed parallel to the seam weld 4. In this case, the laser welded portions 6 can also be formed on both seam pressure contact portions 5 formed on both sides of the seam welded portion 4.
本実施例に係る燃料タンク１′は上記したよう
に構成されている。 The fuel tank 1' according to this embodiment is constructed as described above.
従つて、連続性のあるレーザ溶接部６とシーム
溶着部４との二重溶接構造とすることにより、該
燃料タンク１′の気密性の向上が図られ、そのこ
とにより、シーム溶接する際の一対の円盤電極に
よる両つば部２ａ，３ａの挟持力を小さくするこ
とができる。その結果、シーム溶着部４が断続的
に円盤電極の移動方向に扱かれて引つ張られるこ
とはなく、この部分に薄肉部が形成されて割れを
生じるということはなくなる。 Therefore, by creating a double welded structure of the continuous laser welded part 6 and the seam welded part 4, the airtightness of the fuel tank 1' can be improved. The clamping force of the pair of disc electrodes between the two collars 2a and 3a can be reduced. As a result, the seam welded portion 4 is not intermittently handled and stretched in the direction of movement of the disk electrode, and there is no possibility that a thin wall portion will be formed in this portion and cracks will occur.
本考案は、上記したように、上部容器の外周縁
部に形成されたつば部下部容器の外周縁部に形成
されたつば部とをシーム溶接により接合してなる
密閉容器において、上記両つば部間のシーム溶着
部に沿つて略平行に形成されるシーム圧接部がレ
ーザ溶接されてなることを特徴とする密閉容器で
あるから、密閉容器自体の強度及び気密性の向上
を図ることができる。
As described above, the present invention provides a sealed container in which a flange formed on the outer peripheral edge of an upper container and a flange formed on the outer periphery of a lower container are joined by seam welding. Since the sealed container is characterized in that the seam press-welded portions formed substantially parallel to each other along the seam welded portions are laser welded, the strength and airtightness of the sealed container itself can be improved.
第１図は本考案の一実施例に係る密閉容器の構
造を示すものであつて、同図ａは平面図、同図ｂ
は同図ａにおけるＢ−B′矢視部分拡大断面図、
第２図は従来の密閉容器の構造を示すものであつ
て、同図ａは平面図、同図ｂは側面図、同図ｃは
同図ａにおけるＡ−A′矢視部分拡大断面図であ
る。
符号の説明、１′……燃料タンク（密閉容器）、
２……上部容器、２ａ……つば部、３……下部容
器、３ａ……つば部、４……シーム溶着部、５…
…シーム圧接部、６……レーザ溶接部。
Figure 1 shows the structure of a sealed container according to an embodiment of the present invention, in which figure a is a plan view and figure b is a plan view.
is a partially enlarged sectional view taken along arrow B-B′ in the same figure a,
Fig. 2 shows the structure of a conventional airtight container, in which Fig. 2a is a plan view, Fig. 2b is a side view, and Fig. 2c is a partially enlarged cross-sectional view taken along arrow A-A' in Fig. 2a. be. Explanation of symbols, 1'...Fuel tank (closed container),
2...Upper container, 2a...Brim part, 3...Lower container, 3a...Brim part, 4...Seam welding part, 5...
... Seam pressure welding part, 6... Laser welding part.
Claims (1)
容器の外周縁部に形成されたつば部とをシーム溶
接により接合してなる密閉容器において、上記両
つば部間のシーム溶着部に沿つて略平行に形成さ
れるシーム圧接部がレーザ溶接されてなることを
特徴とする密閉容器。 In a sealed container formed by seam welding a flange formed on the outer peripheral edge of the upper container and a flange formed on the outer periphery of the lower container, along the seam weld between the two flange parts. A closed container characterized in that seam pressure welding portions formed substantially parallel to each other are laser welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988078990U JPH0547699Y2 (en) | 1988-06-15 | 1988-06-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988078990U JPH0547699Y2 (en) | 1988-06-15 | 1988-06-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02236U JPH02236U (en) | 1990-01-05 |
| JPH0547699Y2 true JPH0547699Y2 (en) | 1993-12-16 |
Family
ID=31303879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988078990U Expired - Lifetime JPH0547699Y2 (en) | 1988-06-15 | 1988-06-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0547699Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017155965A (en) * | 2016-02-29 | 2017-09-07 | 日本特殊陶業株式会社 | Heat reservoir |
-
1988
- 1988-06-15 JP JP1988078990U patent/JPH0547699Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02236U (en) | 1990-01-05 |
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