JP3911682B2 - Chemical fire truck tank - Google Patents

Chemical fire truck tank Download PDF

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JP3911682B2
JP3911682B2 JP2004228175A JP2004228175A JP3911682B2 JP 3911682 B2 JP3911682 B2 JP 3911682B2 JP 2004228175 A JP2004228175 A JP 2004228175A JP 2004228175 A JP2004228175 A JP 2004228175A JP 3911682 B2 JP3911682 B2 JP 3911682B2
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tank
strength holding
holding portion
strength
sectional shape
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JP2006043116A (en
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鎮夫 細野
太郎 起橋
正宏 児玉
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Tokyu Car Corp
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Tokyu Car Corp
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Description

本発明は、化学消防車に搭載されるタンクに関するものである。 The present invention relates to a tank mounted on a chemical fire engine.

空港等で用いられている化学消防車は、航空機の火災が発生した場合、消火活動を迅速に開始して損害の発生を可能な限り小さく抑えるために、空港の待機施設から事故現場へと極めて短時間で到着する走行性能が要求される。したがって、化学消防車の重量を可能な限り低減し、高い加速性能を与える必要がある。   Chemical fire trucks used at airports, etc., are extremely difficult to move from airport standby facilities to accident scenes in order to minimize the occurrence of damage in the event of an aircraft fire. Running performance that arrives in a short time is required. Therefore, it is necessary to reduce the weight of the chemical fire engine as much as possible and to provide high acceleration performance.

ところで、空港用化学消防車は、消火活動の際に必要な水を、消火栓や水タンク車から受けるのみならず、自らもタンクを搭載して、そのタンクからも放水ポンプへと供給することが可能となっている。図１２には、従来の空港用化学消防車２００に搭載されているタンク２０２を示している。この空港用化学消防車２００は、所望の加速性能を得るための走行用エンジン、ポンプ駆動用のエンジン、化学消火剤用タンク、配管等の様々な機器を搭載していることから、タンク２０２を設置するためのタンク設置室２０４の容積は、自ずと制限を受けている。 By the way, airport crash tender is, the water required at the time of the fire fighting activities, not only receive from fire hydrants and water tank cars, be himself also equipped with a tank, it is supplied to the water discharge pump from the tank It is possible. FIG. 12 shows a tank 202 mounted on a conventional airport chemical fire engine 200. The airport crash tender 200, vehicle running engine to obtain a desired acceleration performance, engine for pump driving, the chemical fire-extinguishing agent tank, since it is equipped with various devices such as a pipe, a tank 202 The volume of the tank installation chamber 204 for installation is naturally limited.

この容積制限を受けたタンク設置室２０４内において、従来のタンク２０２は、法定の容積を確保するために、全体として角形をなしていた。また、タンク２０２の強度の確保は、タンク２０２を構成する壁材に十分な厚みを持たせ、かつ、タンク内部にも多くの補強メンバを縦横に固定することにより行っていた。したがって、従来のタンク２０２は、重量の軽減が困難であり、空港用化学消防車２００の重量軽減に貢献するものではなかった。また、タンク２０２を構成する部品の点数が多いことから部品コストが上昇し、かつ、組立工数の増大によるコストの上昇を来すものであった。さらに、部品点数が多くなることにより、これらの部品の生産に要する化石燃料や材料の消費量も増大させることとなり、省資源化の要請にも反するものであった。 In the tank installation chamber 204 subjected to the volume restriction, the conventional tank 202 has a rectangular shape as a whole in order to ensure a legal volume. Also, securing the strength of the tank 202 to have a sufficient thickness to the wall material constituting the tank 202, and the number of reinforcing members in the tank has been performed by fixing the vertical and horizontal. Therefore, it is difficult to reduce the weight of the conventional tank 202, and it does not contribute to the weight reduction of the airport chemical fire engine 200. Further, since the number of parts constituting the tank 202 is large, the part cost increases, and the cost increases due to an increase in the number of assembly steps. Furthermore, the increase in the number of parts also increases the consumption of fossil fuels and materials required for the production of these parts, contrary to the demand for resource saving.

本発明は上記課題に鑑みてなされたものであり、その目的とするところは、化学消防車に搭載されるタンクに、法定の容量を確保しつつ、タンクを構成するための部品点数を削減し、十分な強度の確保と可能な限りの軽量化とを図ることにある。 The present invention has been made in view of the above problems, and the object of the present invention is to reduce the number of parts for constituting the tank while ensuring a legal capacity in the tank mounted on the chemical fire engine. The aim is to ensure sufficient strength and to reduce the weight as much as possible.

上記課題を解決するための、本発明に係る化学消防車用タンクは、化学消防車の、隔壁で仕切られ容積制限を受けたタンク設置室内部に搭載されるタンクであって、強度保持部と容積増量部とからなり、前記強度保持部は、鏡板が外側に突出する曲面で構成され、長方形と楕円形との中間形状である変形楕円形断面形状を有する曲面を構成要素とする前記変形楕円形断面形状ほぼ一定のタンク車用タンクの断面形状をなし、前記容積増量部は、前記強度保持部の上部に一体に設けられると共に、前記タンク設置室の隔壁と前記強度保持部との間隙に収まる断面形状をなし、かつ、前記容積増量部の上面は平坦面をなしており、前記強度保持部の変形楕円形断面形状が、車体を側面視した状態で正対するように、前記タンク設置室内部に搭載され、前記容積増量部の平坦面が前記タンク設置室の上方に露出して車体の外壁の一部を構成することを特徴とするものである。
本発明によれば、強度保持部によってタンクに要求される強度を確保すると共に、強度保持部で不足する容積を容積増量部で確保することにより、必要な強度と容積とを確保することができる。しかも、強度保持部は、鏡板が外側に突出する曲面で構成され、長方形と楕円形との中間形状である変形楕円形断面形状を有する曲面を構成要素とする前記変形楕円形断面形状ほぼ一定のタンク車用タンクの断面形状をなすことによって、タンクに加わる応力を強度保持部の全体に分散させ、強度保持部を構成する壁材を薄肉化し、かつ、タンク内部に多くの補強メンバを用いることなく、強度保持部に必要な強度を確保している。さらに、容積増量部は、タンク設置室の隔壁と強度保持部との間隙に収まる断面形状をなすことから、限られたタンク設置室の容積を有効に活用して、タンク全体として必要な容積を確保することが可能となる。 For solving the above problems, the chemical fire truck tank according to the present invention, the chemical fire engines, a tank mounted on a tank installation chamber portion partitioned undergo volume limited by the partition wall, and the strength retention portion The deformed ellipse is composed of a volume increasing part, and the strength holding part is composed of a curved surface with a mirror plate protruding outward and having a deformed elliptical cross-sectional shape that is an intermediate shape between a rectangle and an ellipse. The tank car tank has a substantially constant cross-sectional shape, and the volume increasing part is provided integrally with the upper part of the strength holding part, and in the gap between the partition wall of the tank installation chamber and the strength holding part. The tank installation chamber has a sectional shape that can be accommodated , and the upper surface of the volume increasing portion is a flat surface, and the deformed elliptical sectional shape of the strength holding portion faces the vehicle body in a side view. Mounted inside , It is characterized in that the flat surface of the volume increase unit constitutes a part of the outer wall of the body exposed above the tank installation room.
According to the present invention, the strength required by the tank is secured by the strength holding portion, and the necessary strength and volume can be secured by securing the volume that is insufficient in the strength holding portion in the volume increasing portion. . In addition, the strength holding portion is formed of a curved surface with a mirror plate protruding outward, and the deformed elliptical cross-sectional shape having a curved surface having a modified elliptical cross-sectional shape that is an intermediate shape between a rectangle and an ellipse is substantially constant. By making the cross-sectional shape of the tank truck tank , the stress applied to the tank is distributed throughout the strength holding part, the wall material constituting the strength holding part is thinned, and many reinforcing members are used inside the tank. However, the strength required for the strength holding portion is ensured. Furthermore, since the volume increasing part has a cross-sectional shape that fits in the gap between the partition wall and the strength holding part of the tank installation chamber, the volume necessary for the entire tank can be increased by effectively utilizing the limited volume of the tank installation chamber. It can be secured.

なお、本発明においては、前記強度保持部は、鏡板が外側に突出する曲面で構成され、前記強度保持部の曲面を構成要素とする断面形状として、長方形と楕円形との中間形状である変形楕円形断面形状を採用することにより、強度保持部に求められる強度を確保しつつ必要な容積を確保することが可能である。
また、本発明におけるタンクは、前記強度保持部の変形楕円形断面形状が、車体を側面視した状態で正対するように、前記タンク設置室内部に搭載されるものとすることが可能である。 In the present invention, the strength holding portion is formed by a curved surface with an end plate projecting outward, and the cross-sectional shape having the curved surface of the strength holding portion as a component is an intermediate shape between a rectangle and an ellipse. By adopting an elliptical cross-sectional shape, it is possible to ensure the required volume while ensuring the strength required for the strength holding portion.
Further, the tank according to the present invention can be mounted in the tank installation chamber so that the deformed elliptical cross-sectional shape of the strength holding portion faces the vehicle body in a side view .

さらに、本発明においては、前記強度保持部の上部に前記容積増量部が一体に設けられると共に、前記容積増量部の上面は平坦面をなし、該平坦面が前記タンク設置室の上方に露出して車体の外壁の一部を構成することとして、当該タンクが搭載される消防車の外板の省略を可能としている。
また、本発明においては、前記強度保持部の下方には、水の吐出口を備える溜枡が、車両フレームを跨ぐように突出することによって、タンクを車両フレームに確実に位置決めし、強固に固定することが可能となる。また、タンク内の水は、一端、タンクの最下部に位置する溜枡に貯留されることから、タンク内の水の残量にかかわらず、溜枡から吐出口を介して、水が安定供給されることとなる。 Furthermore, in the present invention, the volume increasing portion is integrally provided on the upper portion of the strength holding portion, and the upper surface of the volume increasing portion forms a flat surface, and the flat surface is exposed above the tank installation chamber. As a part of the outer wall of the vehicle body, the outer plate of the fire engine on which the tank is mounted can be omitted.
Further, in the present invention, a tank having a water discharge port projects below the strength holding portion so as to straddle the vehicle frame, so that the tank can be reliably positioned on the vehicle frame and firmly fixed. It becomes possible to do. The water in the tank, one end, from being stored in Tamarimasu located at the bottom of the tank, regardless of the remaining amount of water in the tank, through the discharge opening from the reservoir squares, water stable supply Will be.

本発明はこのように構成したので、化学消防車に搭載されるタンクに、法定の容量を確保しつつ、タンクを構成するための部品点数を削減し、十分な強度の確保と可能な限りの軽量化とを図ることが可能となる。 Since the present invention is configured as described above, the number of parts for configuring the tank is reduced while ensuring the legal capacity for the tank mounted on the chemical fire engine, ensuring sufficient strength and as much as possible. It is possible to reduce the weight.

以下、本発明を実施するための最良の形態を添付図面に基づいて説明する。
図１には、本発明の実施の形態に係る空港用化学消防車２０と、それに搭載されたタンク２２とを示している。タンク２２は、空港用化学消防車２０のタンク設置室２４の内部に搭載されている。また、タンク２２は、図２から図４に示すように、強度保持部２６と容積増量部２８とを備えるものである。
強度保持部２６は、曲面を構成要素とする断面形状ほぼ一定のタンク車用タンク（例えば、タンクローリ用タンク）の断面形状を採用している。本実施の形態では、車体を側面視したときの断面形状に、図３、図６に示すように長方形と楕円形との中間形状（長方形の角部を楕円曲面に置換したような形状）である、いわゆる変形楕円形断面形状を採用している。そして、強度保持部２６の車体を側面視したときの端壁（鏡板）２６ａを、外側に突出する曲面で構成したものである。さらに、空港用化学消防車２０のタンク設置室２４内にタンク２２が搭載される際には、図１（ｂ）に示すように、強度保持部２６の変形楕円形断面形状が、車体を側面視した状態で正対するように、搭載される。 The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.
FIG. 1 shows an airport chemical fire engine 20 according to an embodiment of the present invention and a tank 22 mounted thereon. The tank 22 is mounted inside the tank installation chamber 24 of the airport chemical fire engine 20. Moreover, the tank 22 is provided with the intensity | strength holding | maintenance part 26 and the volume increasing part 28, as shown in FIGS.
The strength holding unit 26 employs a cross-sectional shape of a tank car tank (for example, a tank truck tank) having a substantially constant cross-sectional shape having a curved surface as a component. In the present embodiment, the cross-sectional shape when the vehicle body is viewed from the side is an intermediate shape between a rectangle and an ellipse as shown in FIGS. 3 and 6 (a shape in which corners of the rectangle are replaced with elliptical curved surfaces). A so-called deformed elliptical cross-sectional shape is employed. And the end wall (end plate) 26a when the vehicle body of the strength holding part 26 is viewed from the side is constituted by a curved surface protruding outward. Further, when the tank 22 is mounted on the tank installation chamber 24 of the airport crash tender 20, as shown in FIG. 1 (b), deformation elliptical cross-sectional shape of the strength maintaining portion 26, the side surface of the vehicle body It is mounted so as to face up in the state of view .

一方、容積増量部２８は、強度保持部２６の上部に一体に設けられるものであり、タンク設置室２４の隔壁２４ａと強度保持部２６との間隙に収まるような断面形状を採用している。その形状は、具体的には、容積増量部２８の下面２８ａに強度保持部２６の外周壁２６ｂを共用している。また、車体前後方向に面する側面２８ｂの設置間隔を、強度保持部２６の車体前後方向の幅と同一若しくはそれ以下に抑えることとして、タンク設置室２４の隔壁２４ａと容積増量部２８との干渉を防ぐものである。さらに、容積増量部２８の左右側面２８ｃ（図４）の設置間隔は、下面２８ａを強度保持部２６の外周壁２６ｂと共用した関係から、強度保持部２６の外周壁２６ｂの幅を超えない範囲としている。加えて、上面２８ｄを平坦面とし、当該平坦面をタンク設置室２４の上方に露出させて（図１（ａ）参照）、上面２８ｄにより、空港用化学消防車２０の車体の外壁の一部を構成し得るものとしている。 On the other hand, the volume increasing part 28 is provided integrally on the upper part of the strength holding part 26, and has a cross-sectional shape that fits in the gap between the partition wall 24 a of the tank installation chamber 24 and the strength holding part 26. Specifically, the outer peripheral wall 26b of the strength holding part 26 is shared with the lower surface 28a of the volume increasing part 28. Further, the interference of the installation interval of the side 28b which faces in the longitudinal direction of the vehicle body, as to suppress the vehicle body in the longitudinal direction of width the same or less strength retention portion 26, the partition wall 24a and the volume increasing portion 28 of the tank installation room 24 Is to prevent. Furthermore, the installation interval of the left and right side surfaces 28c (FIG. 4) of the volume increasing portion 28 is within a range not exceeding the width of the outer peripheral wall 26b of the strength holding portion 26 because the lower surface 28a is shared with the outer peripheral wall 26b of the strength holding portion 26. It is said. In addition, the upper surface 28d is a flat surface, the flat surface is exposed above the tank installation chamber 24 (see FIG. 1A), and a part of the outer wall of the vehicle body of the airport chemical fire engine 20 is formed by the upper surface 28d. Can be configured.

さらに、タンク２２の構造を詳しく説明すると、強度保持部２６の外周壁２６ｂのうち、容積増量部２８が覆い被さる部分（図７参照）には、強度保持部２６と容積増量部２８とを連通させるための上部連通穴３０、３２が設けられている。また、強度保持部２６の内部には、図５、図６に示すように、強度保持部２６を１キロリットル毎に区分けするための防波板３４、３６が、設けられている。これらの防波板３４、３６は、消防検定に準拠したものである。図示の例では、防波板３４は、平板の端部に沿って突起部を形成し、かかる平板を複数並べて、強度保持部２６内に固定したものであり、強度保持部２６を車体前後方向に３分割している。一方、防波板３６は、端壁２６ａを流用し、かつ、複数の貫通穴３８、４０（図６）を設けたものであり、強度保持部２６を車幅方向に２分割している。 Further, the structure of the tank 22 will be described in detail. The strength holding portion 26 and the volume increasing portion 28 are communicated with a portion of the outer peripheral wall 26b of the strength holding portion 26 that covers the volume increasing portion 28 (see FIG. 7). Upper communication holes 30 and 32 are provided. In addition, as shown in FIGS. 5 and 6, wave preventing plates 34 and 36 are provided inside the strength holding portion 26 to divide the strength holding portion 26 every 1 kiloliter. These wave prevention plates 34 and 36 comply with the fire fighting certification. In the illustrated example, the wave preventing plate 34 is formed by forming a protrusion along the end of the flat plate, arranging a plurality of such flat plates, and fixing the strength holding portion 26 in the longitudinal direction of the vehicle body. It is divided into three. On the other hand, the wave preventing plate 36 uses the end wall 26a and is provided with a plurality of through holes 38 and 40 (FIG. 6), and divides the strength holding portion 26 into two in the vehicle width direction.

また、平坦面として構成された容積増量部２８の上面２８ｄには、消防検定に準拠して、開口直径が４５０ｍｍ以上のマンホール４２、４４（図２〜図４）が設けられている。なお、マンホール４２は、給水時等に開放するための開閉自在なドア４６が設けられている。一方、マンホール４４は主に整備用に設置されたものであり、カバー４８がねじ止めされている。 In addition, manholes 42 and 44 (FIGS. 2 to 4) having an opening diameter of 450 mm or more are provided on the upper surface 28d of the volume increasing portion 28 configured as a flat surface in accordance with the fire test. In addition, the manhole 42 is provided with a door 46 that can be opened and closed to be opened when water is supplied. On the other hand, the manhole 44 is mainly installed for maintenance, and a cover 48 is screwed.

さらに、強度保持部２６の下方には、水の吐出口５０を備える溜枡５２が設けられている。この溜枡５２は、消防車の車両フレームを跨ぐようにして、強度保持部２６の車幅方向の両端部から突出するように設けられている。そして、強度保持部２６の外周壁２６ｂのうち、溜枡５２が設置された部位（図８参照）には、強度保持部２６と溜枡５２とを連通させるための下部連通穴５４が、複数設けられている。
なお、タンク２２には、図４〜図６に示されるように、強度補強部２６を貫通するオーバーフローパイプ５６が設けられている。このオーバーフローパイプ５６の下端部は、強度補強部２６の外部に開放し、上端部は容積増量部２８の内部に開放することで、マンホール４２以外の注入口５８、６０（図３）から、タンク２２内へと水を注入する際の、タンク２２内のエア抜きが、円滑に行われるようになっている。 Further, a reservoir 52 having a water discharge port 50 is provided below the strength holding unit 26. The reservoir 52 is provided so as to protrude from both ends of the strength holding portion 26 in the vehicle width direction so as to straddle the vehicle frame of the fire truck. A portion of the outer peripheral wall 26b of the strength holding portion 26 where the reservoir 52 is installed (see FIG. 8) has a plurality of lower communication holes 54 for allowing the strength holder 26 and the reservoir 52 to communicate with each other. Is provided.
As shown in FIGS. 4 to 6, the tank 22 is provided with an overflow pipe 56 that penetrates the strength reinforcing portion 26. The lower end portion of the overflow pipe 56 is opened to the outside of the strength reinforcing portion 26, and the upper end portion is opened to the inside of the volume increasing portion 28, so that the tank can be supplied from the inlets 58 and 60 (FIG. 3) other than the manhole 42. The air in the tank 22 is smoothly vented when water is poured into the tank 22.

上記構成を有する、本発明の実施の形態に係るタンク２２によれば、次のような作用効果を得ることができる。まず、強度保持部２６によってタンク２２に要求される強度を確保すると共に、強度保持部２６で不足する容積を容積増量部２８で確保することにより、タンク２２に必要な強度と容積とを確保することができる。また、強度保持部２６は、鏡板２６ａが外側に突出する曲面で構成され、長方形と楕円形との中間形状である変形楕円形断面形状を有する曲面を構成要素とする前記変形楕円形断面形状ほぼ一定のタンク車用タンクの断面形状をなすことによって、タンク２２に加わる応力を強度保持部２６の全体に分散させ、強度保持部２６を構成する壁材を薄肉化し、かつ、強度保持部２６の内部に多くの補強メンバを固定することなく、強度保持部２６に必要な強度を確保することが可能となっている。具体例として、従来の角形のタンクの壁厚が８〜１０ｍｍであったのに対し、強度保持部２６の壁厚は４〜６ｍｍへと減少している。
さらに、容積増量部２８は、タンク設置室２４の隔壁と、強度保持部２６との間隙に収まる断面形状をなすことから、限られたタンク設置室２４の容積を有効に活用して、タンク２２の容積を増大させることが可能となる。 According to the tank 22 according to the embodiment of the present invention having the above-described configuration, the following operational effects can be obtained. First, the strength required for the tank 22 is secured by the strength holding unit 26, and the volume and the volume increasing unit 28 secure a volume that is insufficient in the strength holding unit 26, thereby securing the necessary strength and volume for the tank 22. be able to. The strength holding portion 26 is formed of a curved surface with an end plate 26a projecting outward, and the deformed elliptical cross-sectional shape substantially includes a curved surface having a modified elliptical cross-sectional shape that is an intermediate shape between a rectangle and an ellipse. By making the cross-sectional shape of the tank for a fixed tank car, the stress applied to the tank 22 is dispersed throughout the strength holding portion 26, the wall material constituting the strength holding portion 26 is thinned, and the strength holding portion 26 The strength required for the strength holding portion 26 can be ensured without fixing many reinforcing members inside. As a specific example, the wall thickness of the conventional rectangular tank is 8 to 10 mm, whereas the wall thickness of the strength holding portion 26 is reduced to 4 to 6 mm.
Furthermore, since the volume increasing unit 28 has a cross-sectional shape that fits in the gap between the partition wall of the tank installation chamber 24 and the strength holding unit 26, the volume of the limited tank installation chamber 24 is effectively utilized to reduce the tank 22. The volume of the can be increased.

また、強度保持部２６の、曲面を構成要素とするタンク車用タンクの断面形状として、長方形と楕円形との中間形状である変形楕円形断面形状を採用することにより、タンク車用タンクの製造設備や部品を利用して、タンクに求められる強度を確保しつつ、容積を可能な限り増大させることが可能な、空港用化学消防車のためのタンク２２を提供することが可能となる。よって、タンク２２を構成するための部品点数が増大することによる部品コストの上昇や、組立工数の増大によるコストの上昇を防ぐと共に、各構成部品の生産に要する化石燃料や材料の消費量を抑えることが可能となる。 Further, by adopting a modified elliptical cross-sectional shape, which is an intermediate shape between a rectangle and an ellipse, as the cross-sectional shape of the tank car tank having a curved surface as a constituent element of the strength holding portion 26, the tank car tank is manufactured. It is possible to provide a tank 22 for an airport chemical fire engine that can increase the volume as much as possible while securing the strength required for the tank using equipment and parts. Therefore, an increase in the cost of parts due to an increase in the number of parts for constituting the tank 22 and an increase in the cost due to an increase in the number of assembly steps are prevented, and the consumption of fossil fuel and materials required for the production of each component is suppressed. It becomes possible.

しかも、タンク２２は強度保持部２６の変形楕円形断面形状が、車体を側面視した状態で正対するように、タンク設置室２４内部に搭載されることによって、タンク車用タンクの部品を流用してタンク２２を構成したような場合であっても、タンク２２の車幅方向の長さを車体幅に合わせて設定することで、スペース効率的に有利に空港用化学消防車２０へと搭載することが可能となる。
なお、タンク２２は、強度保持部２６内を１キロリットル毎に区分けするための防波板３４、３６を設けることによって、空港用化学消防車２０に求められる法定基準（消防検定）を満たしている。 Moreover, the tank 22 is mounted inside the tank installation chamber 24 so that the deformed elliptical cross-sectional shape of the strength holding portion 26 faces the vehicle body in a side view , thereby diverting the tank car tank components. Even if the tank 22 is configured, the length of the tank 22 in the vehicle width direction is set in accordance with the vehicle body width, so that the tank 22 can be mounted on the airport chemical fire engine 20 in an efficient space efficiency. It becomes possible.
The tank 22 satisfies the statutory standard (firefighting certification) required for the airport chemical fire engine 20 by providing the wave preventing plates 34 and 36 for dividing the inside of the strength holding unit 26 every 1 kiloliter. Yes.

さらに、強度保持部２６の上部に容積増量部２８が一体に設けられると共に、容積増量部２８の上面２８ｄは平坦面をなし、上面２８ｄがタンク設置室２４の上方に露出して車体の外壁の一部を構成するものであることから、消防車の外板を、タンク２２が搭載される部位において省略することが可能となる。このことによっても、空港用化学消防車２０の重量軽減、部品点数の削減、部品の生産工数の削減および省資源化に貢献することができる。
なお、容積増量部２８の上面２８ｄには、開口直径が４５０ｍｍ以上のマンホール４２、４４を設けることによって、法定基準（消防検定）を満たしている。
さらに、強度保持部２６の下方には、水の吐出口５０を備える溜枡５２が、車両フレームを跨ぐように突出することによって、溜枡５２を利用してタンク２２を車両フレームに確実に位置決めし、強固に固定することが可能となっている。また、タンク２２内の水は、一端、タンク２２の最下部に位置する溜枡５２に貯留され、タンク２２内の水の残量にかかわらず、溜枡５２から吐出口５０を介してポンプへと、水が安定供給されることとなる。
以上のごとく、本発明の実施の形態では、空港用化学消防車２０に本発明を適用した場合を例示して説明したが、他の用途に係る化学消防車にも、本発明を適用することが可能である。 Further, a volume increasing part 28 is integrally provided on the upper part of the strength holding part 26, and an upper surface 28d of the volume increasing part 28 forms a flat surface, and the upper surface 28d is exposed above the tank installation chamber 24 so that the outer wall of the vehicle body is exposed. Since it constitutes a part, the outer plate of the fire engine can be omitted at the portion where the tank 22 is mounted. This also contributes to reducing the weight of the chemical fire engine 20 for airports, reducing the number of parts, reducing the number of parts production steps, and saving resources.
The upper surface 28d of the volume increasing portion 28 is provided with manholes 42 and 44 having an opening diameter of 450 mm or more, thereby satisfying the legal standard (fire test).
Further, below the strength holding portion 26, a reservoir 52 having a water discharge port 50 projects so as to straddle the vehicle frame, so that the tank 22 is reliably positioned on the vehicle frame using the reservoir 52. And can be firmly fixed. Also, the water in the tank 22, one end, is stored in Tamarimasu 52 located at the bottom of the tank 22, regardless of the remaining amount of water in the tank 22, to the pump through the discharge port 50 from Tamarimasu 52 And water will be supplied stably.
As described above, in the embodiment of the present invention, the case where the present invention is applied to the airport chemical fire engine 20 is described as an example. However, the present invention is also applied to chemical fire engines according to other uses. Is possible.

本発明の実施の形態に係るタンクが搭載された空港用化学消防車を概略的に示すものであり、（ａ）は上面図、（ｂ）は側面図である。BRIEF DESCRIPTION OF THE DRAWINGS The airport chemical fire engine in which the tank which concerns on embodiment of this invention is mounted is shown schematically, (a) is a top view, (b) is a side view. 図１に示すタンクの上面図である。It is a top view of the tank shown in FIG. 図１に示すタンクの側面図である。It is a side view of the tank shown in FIG. 図１に示すタンクの正面図である。It is a front view of the tank shown in FIG. 図１に示すタンクの強度保持部を、車幅方向に延びる切断線で切断した縦断面図である。It is the longitudinal cross-sectional view which cut | disconnected the intensity | strength holding | maintenance part of the tank shown in FIG. 1 with the cutting line extended in a vehicle width direction. 図１に示すタンクの強度保持部を、車体前後方向に延びる切断線で切断した縦断面図である。It is the longitudinal cross-sectional view which cut | disconnected the intensity | strength holding | maintenance part of the tank shown in FIG. 1 with the cutting line extended in the vehicle body front-back direction. 図１に示すタンクの強度保持部の上面図である。It is a top view of the intensity | strength holding | maintenance part of the tank shown in FIG. 図１に示すタンクの強度保持部の下面図である。It is a bottom view of the intensity | strength holding | maintenance part of the tank shown in FIG. 図１に示すタンクの容積増量部の上面図である。It is a top view of the volume increasing part of the tank shown in FIG. 図１に示すタンクの容積増量部の正面図である。It is a front view of the volume increasing part of the tank shown in FIG. 図１に示すタンクの溜枡を示すものであり、（ａ）は正面図、（ｂ）は上面図、（ｃ）は側面図である。FIG. 2 is a view showing a tank reservoir shown in FIG. 1, wherein (a) is a front view, (b) is a top view, and (c) is a side view. 従来のタンクが搭載された空港用化学消防車を概略的に示すものであり、（ａ）は上面図、（ｂ）は側面図である。BRIEF DESCRIPTION OF THE DRAWINGS The airport chemical fire engine equipped with the conventional tank is shown roughly, (a) is a top view, (b) is a side view.

符号の説明Explanation of symbols

２０：空港用化学消防車、２２：タンク、２４：タンク設置室、２６：強度保持部、２８：容積増量部、２８ｄ：上面、 ３４、３６：防波板、 ４２、４４：マンホール、５０：吐出口、５２：溜枡 20: Chemical fire engine for airport, 22: Tank , 24: Tank installation room, 26: Strength holding part, 28: Volume increasing part , 28d: Upper surface, 34, 36: Wave barrier, 42, 44: Manhole, 50: Discharge port, 52: Reservoir

Claims (2)

化学消防車の、隔壁で仕切られ容積制限を受けたタンク設置室内部に搭載されるタンクであって、
強度保持部と容積増量部とからなり、前記強度保持部は、鏡板が外側に突出する曲面で構成され、長方形と楕円形との中間形状である変形楕円形断面形状を有する曲面を構成要素とする前記変形楕円形断面形状ほぼ一定のタンク車用タンクの断面形状をなし、前記容積増量部は、前記強度保持部の上部に一体に設けられると共に、前記タンク設置室の隔壁と前記強度保持部との間隙に収まる断面形状をなし、かつ、前記容積増量部の上面は平坦面をなしており、
前記強度保持部の変形楕円形断面形状が、車体を側面視した状態で正対するように、前記タンク設置室内部に搭載され、前記容積増量部の平坦面が前記タンク設置室の上方に露出して車体の外壁の一部を構成することを特徴とする化学消防車用タンク。 Chemical fire truck, a tank mounted on a tank installation chamber portion partitioned undergo volume limited by the partition wall,
The strength holding portion includes a strength holding portion and a volume increasing portion, and the strength holding portion is configured by a curved surface having a deformed elliptical cross-sectional shape that is an intermediate shape between a rectangle and an ellipse , with a mirror plate protruding outward. The deformed elliptical cross-sectional shape has a substantially constant cross-sectional shape of a tank for a tank car, and the volume increasing portion is integrally provided on an upper portion of the strength holding portion, and the partition wall of the tank installation chamber and the strength holding portion And the upper surface of the volume increasing part is a flat surface,
The deformed elliptical cross-sectional shape of the strength holding portion is mounted in the tank installation chamber so that it faces the vehicle body in a side view, and the flat surface of the volume increasing portion is exposed above the tank installation chamber. A tank for chemical fire engines, which forms part of the outer wall of the vehicle body . 前記強度保持部の下方には、水の吐出口を備える溜枡が、車両フレームを跨ぐように突出していることを特徴とする請求項１記載の化学消防車用タンク。 2. The chemical fire engine tank according to claim 1, wherein a reservoir having a water discharge port projects below the strength holding portion so as to straddle the vehicle frame.
JP2004228175A 2004-08-04 2004-08-04 Chemical fire truck tank Expired - Fee Related JP3911682B2 (en)

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JP2013111093A (en) * 2011-11-25 2013-06-10 Showa Aircraft Ind Co Ltd Fire engine
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