JP2005162010A - Fuel tank for automobile - Google Patents

Fuel tank for automobile Download PDF

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JP2005162010A
JP2005162010A JP2003404018A JP2003404018A JP2005162010A JP 2005162010 A JP2005162010 A JP 2005162010A JP 2003404018 A JP2003404018 A JP 2003404018A JP 2003404018 A JP2003404018 A JP 2003404018A JP 2005162010 A JP2005162010 A JP 2005162010A
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upper case
stay
case
fuel tank
welded
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Japanese (ja)
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Jun Okada
純 岡田
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Horie Metal Co Ltd
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Horie Metal Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To lighten a fuel tank for an automobile, where a closed space is formed by mutually joining opening parts of an upper case and a lower case made of metal having openings, not only by mutually joining the opening parts of the both cases but also by appropriately connecting bottom faces of the both cases to each other. <P>SOLUTION: The closed space is formed by mutually joining the opening parts of the upper case 10 and the lower case 20 so as to constitute an enclosed type fuel tank. A communicating hole 12 is formed on the bottom part of the upper case 10, and a stay 30 which is a metal plate bent to form an approximate V shape is welded to a bottom part inner face of the lower case 20. In the condition that an upper end part 35 of the stay abuts on the bottom part inner face of the upper case for covering the communicating hole 12, the upper case around the communicating hole and the upper end part of the stay are welded and joined and the opening parts of the both cases (flanges 21 and 11) are welded and joined. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、自動車用燃料タンクに関し、特に、開口を有する金属製のアッパケース及びロアケースの開口部相互を接合して閉空間を形成する自動車用燃料タンクに係る。   The present invention relates to an automobile fuel tank, and more particularly to an automobile fuel tank in which a metal upper case having an opening and an opening of a lower case are joined together to form a closed space.

従来から種々の構造の自動車用燃料タンクが用いられているが、この中で、開口を有する金属製のアッパケース及びロアケースの開口部相互を接合して閉空間を形成し、最中（もなか）形状としたものがあり、もなか型燃料タンクと呼ばれている。例えば、特許文献１に記載の燃料タンクのように、一対の容器の開口部を接合して閉空間を郭成するように構成されている。尚、特許文献１に記載の燃料タンクにおいては、仕切板及びサブタンクを燃料タンク内の所定位置に確実且つ容易に固定し得るようにすることを目的とし、板面に複数の連通孔を穿設して成る仕切板と、この仕切板と一体的に形成するサブタンクとを備え、仕切板を一対の容器の底部間に挾持して固定する構造が提案されている。   Conventionally, various types of fuel tanks for automobiles have been used. Among them, a metal upper case having an opening and an opening of the lower case are joined together to form a closed space. There is a shape, and it is called a middle type fuel tank. For example, like the fuel tank of patent document 1, it is comprised so that the opening part of a pair of containers may be joined and a closed space may be enclosed. In the fuel tank described in Patent Document 1, a plurality of communication holes are formed in the plate surface for the purpose of surely and easily fixing the partition plate and the sub tank at predetermined positions in the fuel tank. There has been proposed a structure including a partition plate formed as described above and a sub tank formed integrally with the partition plate, and holding the partition plate between the bottoms of a pair of containers.

また、上記のもなか型燃料タンクとは異なる構造であるが、特許文献２において、燃料タンクや消音マフラーなどのように中仕切板を有するタンクに関し、中仕切板の固定構造が開示されている。この特許文献２に供されるタンクは、金属板が断面四角形に折り曲げられて筒状に形成されたものであり、このようなタンクを前提として、中仕切板の固定構造に関する改良が提案されている。   Moreover, although it is a structure different from the above-mentioned type | mold fuel tank, in patent document 2, regarding the tank which has a partition plate like a fuel tank, a muffler muffler, etc., the fixing structure of a partition plate is disclosed. The tank provided in this Patent Document 2 is a cylinder formed by bending a metal plate into a quadrangular section, and on the premise of such a tank, an improvement related to the fixing structure of the partition plate has been proposed. Yes.

更に、上記特許文献２と同様の趣旨で、内部に気泡発生を抑制する仕切り板を設けた車両用燃料タンクが特許文献３に開示されている。この特許文献３では、上記特許文献２と同様の筒状のタンク本体内に設ける仕切り板を門型形状とし、その下端の取付部のみをタンク本体の底面に溶接することとし、溶接工程の簡素化が企図されている。   Further, for the same purpose as the above-mentioned Patent Document 2, a vehicle fuel tank provided with a partition plate for suppressing bubble generation inside is disclosed in Patent Document 3. In this patent document 3, the partition plate provided in the cylindrical tank body similar to the above-mentioned patent document 2 has a portal shape, and only the lower end mounting portion is welded to the bottom surface of the tank body, thereby simplifying the welding process. Is planned.

特開平６−１４４０３０号公報JP-A-6-144030 特開平９−２６３１４８号公報JP-A-9-263148 特開平７−１７２１９５号公報JP-A-7-172195

前掲の特許文献１に記載のもなか型燃料タンクにおいては、一対の容器の開口部が接合されて、もなか形状、あるいはシェル（貝殻）形状となる。このような構造の燃料タンクにおいて耐圧性能を上げるためには、燃料タンクを構成する容器の板厚を大とすることが一般的であるが、重量が大となり、コストアップ要因ともなる。これに対し、一対の容器たるアッパケース及びロアケースの底面に、夫々の内側に延出する凸部（外面から見れば凹部）を形成し、両開口部（フランジ部）と共に両凸部を接合する構造も提案されており、これによれば、板厚の増大化ひいては重量増加を回避することができるが、構造が複雑となり、燃料の貯蔵容量も減少することになる。   In the middle type fuel tank described in the above-mentioned Patent Document 1, the openings of a pair of containers are joined to form a middle shape or a shell (shell) shape. In order to increase the pressure resistance performance of a fuel tank having such a structure, it is common to increase the plate thickness of the container constituting the fuel tank, but this increases the weight and causes an increase in cost. On the other hand, on the bottom surfaces of the upper case and the lower case, which are a pair of containers, convex portions (concave portions as viewed from the outer surface) that extend inward are formed, and both convex portions are joined together with both openings (flange portions). A structure has also been proposed. According to this structure, it is possible to avoid an increase in plate thickness and an increase in weight, but the structure becomes complicated and the storage capacity of the fuel also decreases.

これに対し、前掲の特許文献２及び３に記載の燃料タンクは、前掲の特許文献１とはタンク本体の構造が異なり、特許文献２及び３に開示された仕切板の構造を、特許文献１のタンク本体に適用する必然性も、これを示唆する開示もない。   On the other hand, the fuel tank described in the above-mentioned Patent Documents 2 and 3 differs from the above-mentioned Patent Document 1 in the structure of the tank body, and the structure of the partition plate disclosed in Patent Documents 2 and 3 is described in Patent Document 1. There is no necessity to apply this to the tank body, and there is no disclosure that suggests this.

そこで、本発明は、開口を有する金属製のアッパケース及びロアケースの開口部相互を接合して閉空間を形成する自動車用燃料タンクにおいて、アッパケース及びロアケースの開口部相互を接合するだけでなく、アッパケース及びロアケースの底面相互を適切に連結することにより、一層の軽量化を可能とする自動車用燃料タンクを提供することを課題とする。   Therefore, the present invention is not only for joining the openings of the upper case and the lower case in the automotive fuel tank that forms a closed space by joining the openings of the metal upper case and the lower case having the openings, It is an object of the present invention to provide an automobile fuel tank that can be further reduced in weight by appropriately connecting the bottom surfaces of the upper case and the lower case.

上記課題を解決するため、本発明は、請求項１に記載のように、開口を有する金属製のアッパケース及びロアケースの開口部相互を接合して閉空間を形成する自動車用燃料タンクにおいて、前記アッパケースの底部に連通孔を形成して成り、前記ロアケースの底部内面に下端部を溶接した板状のステーを備え、該ステーの上端部が前記連通孔を覆うように前記アッパケースの底部内面に当接した状態で、前記連通孔周りの前記アッパケースと前記ステーの上端部とを溶接接合すると共に、前記ロアケースの開口部と前記アッパケースの開口部とを接合することとしたものである。   In order to solve the above-described problems, the present invention provides a vehicle fuel tank that forms a closed space by joining the openings of a metal upper case and a lower case having an opening as described in claim 1. A communication hole is formed in the bottom of the upper case, and a plate-like stay welded to the bottom inner surface of the lower case is welded to the bottom of the upper case so that the upper end of the stay covers the communication hole. The upper case around the communication hole and the upper end of the stay are welded and joined together, and the opening of the lower case and the opening of the upper case are joined. .

上記の自動車用燃料タンクにおいて、請求項２に記載のように、更に、前記アッパケースと前記ステーの上端部との接合部を覆うように前記アッパケースの底部外面に溶接接合する蓋体を備えたものとするとよい。   The fuel tank for automobiles according to claim 2, further comprising a lid that is welded to the outer surface of the bottom of the upper case so as to cover the joint between the upper case and the upper end of the stay. It is good to have

また、本発明は、請求項３に記載のように、開口を有する金属製のアッパケース及びロアケースの開口部相互を接合して閉空間を形成する自動車用燃料タンクにおいて、前記ロアケースの底部内面に下端部を溶接した板状のステーを備え、該ステーの上端部を前記アッパケースの底部内面に当接した状態で、前記アッパケースと前記ステーの上端部とをボルト接合すると共に、前記ロアケースの開口部と前記アッパケースの開口部とを接合し、前記アッパケースと前記ステーの上端部との接合部を覆うように前記アッパケースの底部外面に溶接接合する蓋体を備えたものとしてもよい。   According to a third aspect of the present invention, there is provided a fuel tank for an automobile in which a metal upper case having an opening and an opening of the lower case are joined to each other to form a closed space, and an inner surface of the bottom of the lower case is formed. A plate-like stay having a lower end welded thereto, and with the upper end of the stay in contact with the inner surface of the bottom of the upper case, the upper case and the upper end of the stay are bolted together, and the lower case A lid body may be provided that joins the opening and the opening of the upper case and welds and joins the outer surface of the bottom of the upper case so as to cover the joint between the upper case and the upper end of the stay. .

例えば、前記アッパケースの底部にボルト挿通孔を形成し、前記アッパケースのボルト挿通孔に合致するボルト挿通孔を上端部に形成した板状のステーを備え、該ステーの下端部を前記ロアケースの底部内面に溶接し、前記ステーの上端部及び前記アッパケースの底部の各ボルト挿通孔にボルトを挿通して、前記ステーの上端部を前記アッパケースに接合し、更に、前記アッパケースと前記ステーの上端部との接合部を覆うように前記アッパケースの底部外面に前記蓋体を溶接接合する構成とすることができる。   For example, a plate-like stay having a bolt insertion hole formed at the bottom of the upper case and a bolt insertion hole matching the bolt insertion hole of the upper case at the upper end is provided, and the lower end of the stay is attached to the lower case. Welding to the inner surface of the bottom, inserting bolts into the bolt insertion holes in the upper end of the stay and the bottom of the upper case, joining the upper end of the stay to the upper case, and further connecting the upper case and the stay The lid body can be welded and joined to the outer surface of the bottom portion of the upper case so as to cover the joint portion with the upper end portion of the upper case.

また、前記自動車用燃料タンクにおいて、前記ステーは、請求項４に記載のように、金属板を略Ｖ字状に折曲した一対の脚部の先端部を前記下端部とし、前記一対の脚部間を前記上端部とするように構成することができる。あるいは、請求項５に記載のように、金属板を略コ字状に折曲した一端部を前記下端部とし、他端部を前記上端部とするように構成してもよい。   Further, in the fuel tank for automobiles, as described in claim 4, the stay has a pair of leg portions formed by bending a metal plate into a substantially V-shape as the lower end portion, and the pair of legs. It can comprise so that between parts may be the said upper end part. Or you may comprise so that the one end part which bent the metal plate in the substantially U shape may be used as the said lower end part, and an other end part may be used as the said upper end part.

本発明は上述のように構成されているので以下に記載の効果を奏する。即ち、請求項１に記載の自動車用燃料タンクにおいては、アッパケースとロアケースとは開口部相互が接合されると共に、両ケースの底面が所定のステーを介して適切且つ確実に接合されるので、アッパケース及びロアケースの板厚を増大することなく、自動車用燃料タンクとして所望の耐圧剛性を確保し得ると共に、従来に比し一層の軽量化が可能となる。更に、請求項２に記載のように構成すれば、蓋体によって、アッパケースとステーの上端部との接合部を一層強固とすることができる。   Since this invention is comprised as mentioned above, there exists an effect as described below. That is, in the automobile fuel tank according to claim 1, the upper case and the lower case are joined to each other at the opening, and the bottom surfaces of both cases are joined appropriately and reliably through a predetermined stay. Without increasing the thickness of the upper case and the lower case, it is possible to ensure a desired pressure-resistant rigidity as a fuel tank for an automobile, and further reduce the weight as compared with the conventional case. Furthermore, if comprised as described in Claim 2, the junction part of an upper case and the upper end part of a stay can be further strengthened with a cover body.

また、請求項３に記載の自動車用燃料タンクにおいては、上記の構成に比し、溶接箇所を減らすことができる。   Moreover, in the fuel tank for automobiles according to the third aspect, the number of welding points can be reduced as compared with the above configuration.

尚、前記ステーは、請求項４に記載のように構成すれば、アッパケースとロアケースとの間をバランスよく連結することができ、請求項５に記載のように構成すれば簡単な構造となり、コストダウンとなる。   If the stay is configured as described in claim 4, the upper case and the lower case can be connected with good balance, and if configured as described in claim 5, the structure becomes simple. Cost reduction.

以下、本発明の実施形態について図面を参照して説明する。図１は自動車用燃料タンク１を上方からみた平面図で、図２は図１のＡ−Ａ線断面を示している。図１及び図２において、開口を有する金属製のアッパケース１０及びロアケース２０の開口部相互が接合されて閉空間が形成され、最中（もなか）形状となるので、もなか型燃料タンクと呼ばれる。このアッパケース１０は例えば鋼板が容器状にプレス成形されたもので、その開口部にフランジ１１が一体的に形成され、その底部には連通孔１２が形成されている。また、ロアケース２０も鋼板が容器状にプレス成形され、その開口部にはフランジ２１が一体的に形成されると共に、その底部内面にステー３０が溶接されている。   Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of a fuel tank 1 for an automobile as viewed from above, and FIG. 2 shows a cross section taken along line AA of FIG. In FIGS. 1 and 2, the openings of the metal upper case 10 and the lower case 20 having openings are joined together to form a closed space, which is a middle shape, so it is called a middle type fuel tank. The upper case 10 is formed, for example, by pressing a steel plate into a container shape. A flange 11 is integrally formed in an opening portion thereof, and a communication hole 12 is formed in a bottom portion thereof. The lower case 20 is also formed by pressing a steel plate into a container shape. A flange 21 is integrally formed in the opening, and a stay 30 is welded to the inner surface of the bottom.

本実施形態のステー３０は、金属板が略Ｖ字状に折曲されたもので、一対の脚部３１及び３２の先端部３３及び３４が下端部とされ、これらの脚部３１及び３２間に平坦面の上端部３５が形成されている。ステー３０の脚部３１及び３２は、各々の先端部３３及び３４でロアケース２０の底部内面に溶接される。   The stay 30 of the present embodiment is a metal plate bent in a substantially V shape. The tip portions 33 and 34 of the pair of leg portions 31 and 32 are the lower end portions, and between the leg portions 31 and 32. An upper end portion 35 of the flat surface is formed. The leg portions 31 and 32 of the stay 30 are welded to the inner surface of the bottom portion of the lower case 20 at the respective distal end portions 33 and 34.

そして、ステー３０の上端部３５がアッパケース１０の連通孔１２を覆うように、アッパケース１０の底部内面に当接した状態で、連通孔１２周りのアッパケース１０とステー３０の上端部３５とが溶接接合されると共に、ロアケース２０のフランジ２１とアッパケース１０のフランジ１１とが溶接接合され、図１及び図２に示すように自動車用燃料タンク１が形成される。尚、図１に示すように、アッパケース１０の底部（図２では頂部）には取付板２がガスケット（図示せず）を介して螺子等によって固定されており、この取付板２に、例えば燃料ポンプ（図示せず）がブラケット（図示せず）を介して支持されるように構成されている。   The upper case 10 around the communication hole 12 and the upper end 35 of the stay 30 are in contact with the inner surface of the bottom of the upper case 10 so that the upper end 35 of the stay 30 covers the communication hole 12 of the upper case 10. Are welded together, and the flange 21 of the lower case 20 and the flange 11 of the upper case 10 are welded to form the fuel tank 1 for an automobile as shown in FIGS. As shown in FIG. 1, a mounting plate 2 is fixed to the bottom portion (top portion in FIG. 2) of the upper case 10 by a screw or the like via a gasket (not shown). A fuel pump (not shown) is configured to be supported via a bracket (not shown).

以上のように、アッパケース１０とロアケース２０とは、フランジ１１及び２１とが溶接接合されると共に、ステー３０を介して支持されるので、これらによって自動車用燃料タンク１として高い剛性が確保される。従って、アッパケース１０及びロアケース２０の板厚を従来に比し薄くすることもでき、一層の軽量化が可能となる。   As described above, the upper case 10 and the lower case 20 are welded and joined to the flanges 11 and 21 and supported via the stay 30, so that high rigidity is secured as the fuel tank 1 for an automobile. . Therefore, the plate thickness of the upper case 10 and the lower case 20 can be reduced as compared with the conventional case, and the weight can be further reduced.

図３は本発明の他の実施形態を示すもので、上記の構成に加え、アッパケース１０とステー３０の上端部３５との接合部を覆うように、蓋体（パッチ）４０がアッパケース１０の底部外面に溶接接合されている。また、アッパケース１０とステー３０の上端部３５との溶接の便宜を図り、ステー３０の上端部３５には開口３６が形成されている。その他の構成は上記の実施形態と同様であるので、実質的に同一の部分には同一の符合を付して説明を省略する。尚、図３中、Ｗ及びＷ２は溶接部を示す。而して、本実施形態においては、溶接部Ｗに応力が集中することなく、蓋体４０によって分散されるので、アッパケース１０とステー３０の上端部３５との接合部が一層強固に接合される。   FIG. 3 shows another embodiment of the present invention. In addition to the above-described configuration, a lid (patch) 40 is attached to the upper case 10 so as to cover the joint between the upper case 10 and the upper end portion 35 of the stay 30. Welded to the outer surface of the bottom. An opening 36 is formed in the upper end portion 35 of the stay 30 for the convenience of welding the upper case 10 and the upper end portion 35 of the stay 30. Since other configurations are the same as those of the above-described embodiment, substantially the same parts are denoted by the same reference numerals and description thereof is omitted. In FIG. 3, W and W2 indicate welds. Thus, in the present embodiment, the stress is not concentrated on the welded portion W and is dispersed by the lid body 40, so that the joint portion between the upper case 10 and the upper end portion 35 of the stay 30 is joined more firmly. The

図４は本発明の更に他の実施形態を示すもので、アッパケース１０とステー３０の上端部３５との接合部が、上記図３の実施形態では溶接接合とされているのに対し、本実施形態ではボルト接合とされている。図４に示すように、アッパケース１０の底部に、凹部１３（アッパケース１０の底部の内側に向かって凸部）が形成され、その底部にボルト挿通孔１４が形成され、ステー３０の上端部３５には、アッパケース１０のボルト挿通孔１４に合致するボルト挿通孔３７が形成されている。ステー３０の先端部３３及び３４がロアケース２０底部内面に溶接され、ステー３０の上端部３５及びアッパケース１０の底部の各ボルト挿通孔１４及び３７にボルトＢが挿通されて、このボルトＢによってステー３０の上端部３５がアッパケース１０に接合される。   FIG. 4 shows still another embodiment of the present invention. The joint between the upper case 10 and the upper end 35 of the stay 30 is welded in the embodiment of FIG. In the embodiment, it is a bolt joint. As shown in FIG. 4, a concave portion 13 (a convex portion toward the inside of the bottom portion of the upper case 10) is formed at the bottom portion of the upper case 10, a bolt insertion hole 14 is formed at the bottom portion, and the upper end portion of the stay 30. 35 is formed with a bolt insertion hole 37 that matches the bolt insertion hole 14 of the upper case 10. The tip portions 33 and 34 of the stay 30 are welded to the inner surface of the bottom of the lower case 20, and bolts B are inserted into the bolt insertion holes 14 and 37 at the upper end 35 of the stay 30 and the bottom of the upper case 10. The upper end portion 35 of the 30 is joined to the upper case 10.

そして、図３の実施形態と同様に、アッパケース１０とステー３０の上端部３５との接合部を覆うように、蓋体４０がアッパケース１０の底部外面に溶接接合されている。その他の構成は上記の実施形態と同様であるので、実質的に同一の部分には同一の符合を付して説明を省略する。尚、本実施形態では、図４に示すように、ステー３０の上端部３５の下方側にナットＮが予め溶接接合されているが、これを省略し、上端部３５のボルト挿通孔３７に螺子溝を形成するように加工することとしてもよい。而して、本実施形態によれば、アッパケース１０とステー３０の上端部３５との接合部の溶接作業を蓋体４０の接合時の一回のみとすることができる。   As in the embodiment of FIG. 3, the lid body 40 is welded to the bottom outer surface of the upper case 10 so as to cover the joint portion between the upper case 10 and the upper end portion 35 of the stay 30. Since other configurations are the same as those of the above-described embodiment, substantially the same parts are denoted by the same reference numerals and description thereof is omitted. In this embodiment, as shown in FIG. 4, a nut N is welded in advance to the lower side of the upper end portion 35 of the stay 30, but this is omitted and a screw is inserted into the bolt insertion hole 37 of the upper end portion 35. It is good also as processing so that a groove | channel may be formed. Thus, according to the present embodiment, the welding operation of the joint portion between the upper case 10 and the upper end portion 35 of the stay 30 can be performed only once when the lid body 40 is joined.

図５は本発明の別の実施形態を示すもので、上記の各実施形態のステー３０に代えて、略コ字状に折曲された金属板のステー５０が設けられ、その一端部が下端部５１とされ、他端部が上端部５２とされている。このステー５０によれば、ステー５０が、その下端部５１の一箇所のみでロアケース２０の底部内面に溶接されるので、簡便となる。更に、図示は省略するが、上記の図５の構成に加え、アッパケース１０とステー５０の上端部５２との接合部を覆うように、図２と同様の蓋体をアッパケース１０の底部外面に溶接接合することとしてもよい。尚、その他の構成は上記の実施形態と同様であるので、実質的に同一の部分には同一の符合を付して説明を省略する。   FIG. 5 shows another embodiment of the present invention. Instead of the stay 30 of each of the above-described embodiments, a metal plate stay 50 bent in a substantially U-shape is provided, and one end thereof is at the lower end. The other end portion is an upper end portion 52. According to the stay 50, the stay 50 is welded to the inner surface of the bottom portion of the lower case 20 at only one portion of the lower end portion 51, which is convenient. Further, although not shown, in addition to the configuration of FIG. 5 described above, a lid similar to that of FIG. 2 is attached to the outer surface of the bottom of the upper case 10 so as to cover the joint between the upper case 10 and the upper end 52 of the stay 50. It is good also as welding joining. In addition, since the other structure is the same as that of said embodiment, it attaches | subjects the same code | symbol to the substantially identical part, and abbreviate | omits description.

尚、上記の各実施形態においては、図１に示すように一対のステー３０が設けられているが、一つでもよく、あるいは三つ以上設けることとしてもよい。   In each of the embodiments described above, a pair of stays 30 are provided as shown in FIG. 1, but one may be provided, or three or more stays may be provided.

本発明の一実施形態に係る自動車用燃料タンクの平面図である。It is a top view of the fuel tank for vehicles concerning one embodiment of the present invention. 図１のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIG. 本発明の他の実施形態に係る自動車用燃料タンクの断面図である。It is sectional drawing of the fuel tank for motor vehicles based on other embodiment of this invention. 本発明の更に他の実施形態に係る自動車用燃料タンクの断面図である。It is sectional drawing of the fuel tank for motor vehicles which concerns on other embodiment of this invention. 本発明の別の実施形態に係る自動車用燃料タンクの断面図である。It is sectional drawing of the fuel tank for motor vehicles based on another embodiment of this invention.

符号の説明Explanation of symbols

１０ アッパケース
２０ ロアケース
３０，５０ ステー
４０ 蓋体
Ｗ，Ｗ２ 溶接部
Ｂ ボルト
10 Upper case 20 Lower case 30, 50 Stay 40 Lid W, W2 Welded part B Bolt

Claims (5)

開口を有する金属製のアッパケース及びロアケースの開口部相互を接合して閉空間を形成する自動車用燃料タンクにおいて、前記アッパケースの底部に連通孔を形成して成り、前記ロアケースの底部内面に下端部を溶接した板状のステーを備え、該ステーの上端部が前記連通孔を覆うように前記アッパケースの底部内面に当接した状態で、前記連通孔周りの前記アッパケースと前記ステーの上端部とを溶接接合すると共に、前記ロアケースの開口部と前記アッパケースの開口部とを接合して成ることを特徴とする自動車用燃料タンク。   In a fuel tank for an automobile, in which a metal upper case having an opening and an opening of the lower case are joined together to form a closed space, a communication hole is formed in the bottom of the upper case, and a lower end is formed on the inner surface of the bottom of the lower case. A plate-like stay welded to the upper case and the upper case around the communication hole and the upper end of the stay in a state where the upper end of the stay is in contact with the bottom inner surface of the upper case so as to cover the communication hole A fuel tank for an automobile, wherein the opening portion of the lower case and the opening portion of the upper case are bonded together. 前記アッパケースと前記ステーの上端部との接合部を覆うように前記アッパケースの底部外面に溶接接合する蓋体を備えたことを特徴とする請求項１記載の自動車用燃料タンク。   2. The fuel tank for an automobile according to claim 1, further comprising a lid that is welded and joined to an outer surface of a bottom portion of the upper case so as to cover a joint portion between the upper case and the upper end portion of the stay. 開口を有する金属製のアッパケース及びロアケースの開口部相互を接合して閉空間を形成する自動車用燃料タンクにおいて、前記ロアケースの底部内面に下端部を溶接した板状のステーを備え、該ステーの上端部を前記アッパケースの底部内面に当接した状態で、前記アッパケースと前記ステーの上端部とをボルト接合すると共に、前記ロアケースの開口部と前記アッパケースの開口部とを接合し、前記アッパケースと前記ステーの上端部との接合部を覆うように前記アッパケースの底部外面に溶接接合する蓋体を備えたことを特徴とする自動車用燃料タンク。   A fuel tank for an automobile that forms a closed space by joining openings of a metal upper case and a lower case to each other, and includes a plate-like stay having a lower end welded to the bottom inner surface of the lower case. With the upper end in contact with the inner surface of the bottom of the upper case, the upper case and the upper end of the stay are bolted together, and the opening of the lower case and the opening of the upper case are joined, A fuel tank for an automobile, comprising a lid body that is welded and joined to an outer surface of a bottom portion of the upper case so as to cover a joint portion between the upper case and the upper end portion of the stay. 前記ステーは、金属板を略Ｖ字状に折曲した一対の脚部の先端部を前記下端部とし、前記一対の脚部間を前記上端部とすることを特徴とする請求項１乃至３の何れかに記載の自動車用燃料タンク。   4. The stay is characterized in that a tip portion of a pair of leg portions obtained by bending a metal plate into a substantially V shape is the lower end portion, and a portion between the pair of leg portions is the upper end portion. The fuel tank for automobiles according to any one of the above. 前記ステーは、金属板を略コ字状に折曲した一端部を前記下端部とし、他端部を前記上端部とすることを特徴とする請求項１乃至３の何れかに記載の自動車用燃料タンク。
4. The automobile according to claim 1, wherein the stay has one end portion of a metal plate bent in a substantially U shape as the lower end portion and the other end portion as the upper end portion. Fuel tank.
JP2003404018A 2003-12-03 2003-12-03 Fuel tank for automobile Pending JP2005162010A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012035914A (en) * 2010-07-28 2012-02-23 Dr Ing Hcf Porsche Ag Fuel tank
JP2013505161A (en) * 2009-09-18 2013-02-14 ティーアイ オートモーティヴ テクノロジー センター ゲゼルシャフト ミット ベシュレンクテル ハフツング Fuel tank support
JP6350781B1 (en) * 2017-01-20 2018-07-04 新日鐵住金株式会社 Fuel tank
WO2018135635A1 (en) * 2017-01-20 2018-07-26 新日鐵住金株式会社 Fuel tank
JPWO2020251001A1 (en) * 2019-06-12 2020-12-17

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013505161A (en) * 2009-09-18 2013-02-14 ティーアイ オートモーティヴ テクノロジー センター ゲゼルシャフト ミット ベシュレンクテル ハフツング Fuel tank support
US9050889B2 (en) 2009-09-18 2015-06-09 Ti Automotive Technology Center Gmbh Fuel tank support
US9475382B2 (en) 2009-09-18 2016-10-25 Ti Automotive Technology Center Gmbh Fuel tank support
JP2012035914A (en) * 2010-07-28 2012-02-23 Dr Ing Hcf Porsche Ag Fuel tank
CN102371889A (en) * 2010-07-28 2012-03-14 F.波尔希名誉工学博士公司 Fuel tank
US8919599B2 (en) 2010-07-28 2014-12-30 Dr. Ing. H.C.F. Porsche Aktiengesellschaft Fuel tank
JP6350781B1 (en) * 2017-01-20 2018-07-04 新日鐵住金株式会社 Fuel tank
WO2018135635A1 (en) * 2017-01-20 2018-07-26 新日鐵住金株式会社 Fuel tank
KR20190107706A (en) * 2017-01-20 2019-09-20 닛폰세이테츠 가부시키가이샤 Fuel tank
KR102225084B1 (en) 2017-01-20 2021-03-09 닛폰세이테츠 가부시키가이샤 Fuel tank
JPWO2020251001A1 (en) * 2019-06-12 2020-12-17
EP3984900A4 (en) * 2019-06-12 2022-10-26 Nippon Steel Corporation Fuel tank
JP7307367B2 (en) 2019-06-12 2023-07-12 日本製鉄株式会社 fuel tank
US11932104B2 (en) 2019-06-12 2024-03-19 Nippon Steel Corporation Fuel tank with support pillar

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