JP2023086364A - Vehicle and vehicle manufacturing method - Google Patents

Vehicle and vehicle manufacturing method Download PDF

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JP2023086364A
JP2023086364A JP2021200823A JP2021200823A JP2023086364A JP 2023086364 A JP2023086364 A JP 2023086364A JP 2021200823 A JP2021200823 A JP 2021200823A JP 2021200823 A JP2021200823 A JP 2021200823A JP 2023086364 A JP2023086364 A JP 2023086364A
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side wall
vehicle
wall portion
width direction
tank
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秀幸 林
Hideyuki Hayashi
直亮 笠
Naoaki Kasa
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Nippon Sharyo Ltd
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Nippon Sharyo Ltd
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Abstract

To provide a vehicle that facilitates work for adjusting a position of an upper plate with respect to a tank, and a vehicle manufacturing method.SOLUTION: An equipment chamber 100 comprises: a lower plate 110 which has a floor part 111 forming a floor, and side wall parts 112 arranged at both sides in a vehicle width direction of the floor part 111 to form a portion of a side wall; and an upper plate 120 which has a ceiling wall part 121 forming a ceiling wall and side wall parts 122 arranged at both sides in the vehicle width direction of the ceiling wall part 121 to form a position of the side wall. Since inside surfaces in the vehicle width direction of the side wall parts 122 are overlappingly welded to outside surfaces in the vehicle width direction of the side wall parts 112, a position (a height position and an inclination angle) of the upper plate 120 can be easily adjusted, by adjusting a margin of the overlapping. This facilitates work for adjusting the position of the upper plate 120 with respect to a tank 12.SELECTED DRAWING: Figure 4

Description

本発明は、車両及び車両の製造方法に関し、特に、タンクに対する上板の位置を調整する作業を行いやすくできる車両及び車両の製造方法に関するものである。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle and a vehicle manufacturing method, and more particularly to a vehicle and a vehicle manufacturing method that facilitate the work of adjusting the position of an upper plate with respect to a tank.

タンクの後方に機器室を備えたタンクローリが知られている（特許文献１）。機器室は、床と、左右の側壁と、後方の後壁と、タンクに沿って湾曲する天井壁とから箱状に形成され、内部には、液化天然ガスなどの積載物を給排出するための弁や計器類、配管などが格納される。 A tank truck having an equipment room behind the tank is known (Patent Document 1). The equipment room is shaped like a box with a floor, left and right side walls, a rear rear wall, and a ceiling wall that curves along the tank. valves, instruments, piping, etc.

ここで、機器室は、床側を形成する下板と、側壁、後壁および天井壁側を形成する上板とを備え、下板の縁部から上方へ立設される部分の上端（以下「下板の上端」と称す）に上板の下端を突き合わせて接合する構造であった。 Here, the equipment room includes a lower plate forming the floor side, and an upper plate forming the side walls, the rear wall and the ceiling wall side, and the upper end of the portion erected upward from the edge of the lower plate (hereinafter referred to as It was a structure in which the lower end of the upper plate was butted against the "upper end of the lower plate".

特開２０１５－０３０３０１号公報（例えば、段落００１８，００２４、図１など）JP 2015-030301 (for example, paragraphs 0018, 0024, FIG. 1, etc.)

しかしながら、上述した従来の技術のように、下板の上端と、上板の下端とを突き合わせて接合する構造では、タンクに対する上板の位置を調整する作業に手間を要するという問題点があった。 However, in the structure in which the upper end of the lower plate and the lower end of the upper plate are butted and joined as in the above-described conventional technology, there is a problem that it takes time to adjust the position of the upper plate with respect to the tank. .

即ち、下板の上端と上板の下端とを突き合わせた状態だと機器室の高さがタンクの径よりも大きくなる場合には、下板の上端（又は上板の下端）を削り、上板の位置（高さ位置、傾斜角度）を調整する作業が必要となる。逆に、下板の上端と上板の下端とを突き合わせた状態だと機器室の高さがタンクの径より小さくなる場合には、下板の上端と上板の下端との間に別部材を介在させて、上板を嵩上げする作業が必要となる。 That is, if the height of the equipment room becomes larger than the diameter of the tank when the upper end of the lower plate and the lower end of the upper plate are butted against each other, the upper end of the lower plate (or the lower end of the upper plate) is scraped off and the upper It is necessary to adjust the position of the board (height position, angle of inclination). Conversely, if the height of the equipment room is smaller than the diameter of the tank when the upper end of the lower plate and the lower end of the upper plate are butted against each other, another member must be placed between the upper end of the lower plate and the lower end of the upper plate. It is necessary to raise the upper plate by interposing the

本発明は上述した問題点を解決するためになされたものであり、タンクに対する上板の位置を調整する作業を行いやすくできる車両及び車両の製造方法を提供することを目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle and a method of manufacturing a vehicle that facilitates the work of adjusting the position of the top plate with respect to the tank.

この目的を達成するために本発明の車両は、フレームと、そのフレームに架装されるタンクと、そのタンクの車両後方側に配設される機器室とを備えたものであり、前記機器室は、下板と、上板とを備え、前記下板は、床を形成する床部と、その床部の車両幅方向両側に配設され側壁の一部を形成する下板側壁部とを備え、前記上板は、前記タンクに沿って湾曲する天井壁を形成する天井壁部と、その天井壁部の車両幅方向両側に配設され側壁の一部を形成する上板側壁部とを備え、前記上板側壁部の車両幅方向内側面または外側面が、前記下板側壁部の車両幅方向外側面または内側面に重ね合わされて接合される。 In order to achieve this object, the vehicle of the present invention comprises a frame, a tank mounted on the frame, and an equipment room disposed on the vehicle rear side of the tank. has a lower plate and an upper plate, and the lower plate includes a floor portion forming a floor and lower plate side wall portions disposed on both sides of the floor portion in the vehicle width direction and forming a part of the side wall. The upper plate includes a ceiling wall portion that forms a ceiling wall that curves along the tank, and upper plate side wall portions that are disposed on both sides of the ceiling wall portion in the vehicle width direction and form part of the side walls. The vehicle width direction inner side surface or outer side surface of the upper plate side wall portion is overlapped and joined to the vehicle width direction outer side surface or inner side surface of the lower plate side wall portion.

本発明の車両の製造方法は、フレームと、そのフレームに架装されるタンクと、そのタンクの車両後方側に配設される機器室とを備え、前記機器室が、床を形成する床部、及び、前記床部の車両幅方向両側に配設され側壁の一部を形成する下板側壁部を有する下板と、前記タンクに沿って湾曲する天井壁を形成する天井壁部、及び、前記天井壁部の車両幅方向両側に配設され側壁の一部を形成する上板側壁部を有する上板とを備えた車両を製造する方法であり、前記フレームに前記タンクを架装する第１工程と、その第１工程により架装された前記タンクの車両後方側において、前記フレームに前記下板の前記床部を接合する第２工程と、その第２工程により前記フレームに前記床部が接合された前記下板の前記下板側壁部の車両幅方向外側面または内側面に、前記上板の前記上板側壁部の車両幅方向内側面または外側面を重ね合わせて接合する第３工程とを備える。 A method for manufacturing a vehicle according to the present invention includes a frame, a tank mounted on the frame, and an equipment room disposed on the vehicle rear side of the tank, wherein the equipment room is a floor forming a floor. a lower plate having lower plate side wall portions disposed on both sides in the vehicle width direction of the floor portion and forming part of the side wall; a ceiling wall portion forming a ceiling wall curved along the tank; and an upper plate having upper plate side wall portions that are disposed on both sides in the vehicle width direction of the ceiling wall portion and form a part of the side wall, wherein the tank is mounted on the frame. a second step of joining the floor portion of the lower plate to the frame on the vehicle rear side of the tank mounted in the first step; and attaching the floor portion to the frame in the second step. The vehicle width direction inner surface or outer surface of the upper plate side wall portion of the upper plate is superimposed and joined to the vehicle width direction outer surface or inner surface of the lower plate side wall portion of the lower plate to which is joined and a step.

請求項１記載の車両によれば、機器室は、下板と、上板とを備え、下板は、床を形成する床部と、その床部の車両幅方向両側に配設され側壁の一部を形成する下板側壁部とを備え、上板は、天井壁を形成する天井壁部と、その天井壁部の車両幅方向両側に配設され側壁の一部を形成する上板側壁部とを備え、上板側壁部の車両幅方向内側面または外側面が、下板側壁部の車両幅方向外側面または内側面に重ね合わされて接合されるので、部材を削る作業や別部材を介在させる作業を行わなくても、重ね代を調整することで、上板の位置（高さ位置、傾斜角度）を容易に調整できる。その結果、タンクに対する上板の位置を調整する作業を行いやすくできる。 According to the vehicle of claim 1, the equipment room includes a lower plate and an upper plate, and the lower plate is a floor forming a floor and side walls disposed on both sides of the floor in the vehicle width direction. The upper plate includes a ceiling wall portion forming a ceiling wall, and an upper plate sidewall portion disposed on both sides of the ceiling wall portion in the vehicle width direction and forming a part of the side wall. The vehicle width direction inner surface or outer surface of the upper plate side wall portion is superimposed and joined to the vehicle width direction outer surface or inner surface of the lower plate side wall portion, so there is no need to cut members or separate members. The position (height position, inclination angle) of the upper plate can be easily adjusted by adjusting the overlapping margin without intervening work. As a result, the work of adjusting the position of the top plate with respect to the tank can be facilitated.

請求項２記載の車両によれば、請求項１記載の車両の奏する効果に加え、上板側壁部の車両幅方向内側面または外側面と下板側壁部の車両幅方向外側面または内側面とが重ね合わされる領域は、機器室の側壁の車両上下方向中央よりも下方に位置するので、溶接作業が危険を伴う高所作業となることを抑制できる。 According to the vehicle of claim 2, in addition to the effects of the vehicle of claim 1, the vehicle width direction inner surface or outer surface of the upper plate side wall portion and the vehicle width direction outer surface or inner surface of the lower plate side wall portion The overlapping region is located below the center of the side wall of the equipment room in the vehicle vertical direction.

請求項３記載の車両によれば、請求項１又は２に記載の車両の奏する効果に加え、上板側壁部の車両幅方向内側面が、下板側壁部の車両幅方向外側面に重ね合わされて接合され、下板側壁部の上端と上板側壁部の車両幅方向内側面とは、連続溶接により接合されるので、雨水などの水が機器室の内部に侵入することを抑制できる。 According to the vehicle of claim 3, in addition to the effects of the vehicle of claim 1 or 2, the vehicle width direction inner surface of the upper plate side wall portion overlaps the vehicle width direction outer surface of the lower plate side wall portion. The upper end of the lower plate side wall portion and the inner surface of the upper plate side wall portion in the vehicle width direction are joined by continuous welding.

請求項４記載の車両によれば、請求項１から３のいずれかに記載の車両の奏する効果に加え、フレームは、タンクよりも車両後方側へ延設され、下板がフレームに架装されるので、タンクに対する下板の位置を規定した状態で、下板に対する上板の重ね代を調整できる。その結果、タンクに対する上板の位置を調整する作業を行いやすくできる。 According to the vehicle according to claim 4, in addition to the effects of the vehicle according to any one of claims 1 to 3, the frame extends to the vehicle rear side from the tank, and the lower plate is mounted on the frame. Therefore, the overlapping margin of the upper plate with respect to the lower plate can be adjusted while the position of the lower plate with respect to the tank is defined. As a result, the work of adjusting the position of the top plate with respect to the tank can be facilitated.

請求項５記載の車両の製造方法によれば、フレームにタンクを架装する第１工程と、その第１工程により架装されたタンクの車両後方側において、フレームに下板の床部を接合する第２工程と、その第２工程によりフレームに床部が接合された下板の下板側壁部の車両幅方向外側面または内側面に、上板の上板側壁部の車両幅方向内側面または外側面を重ね合わせて接合する第３工程とを備えるので、タンクに対する上板の位置を調整する作業を行いやすくできる。 According to the vehicle manufacturing method of claim 5, in the first step of mounting the tank on the frame, and in the vehicle rear side of the tank mounted in the first step, the floor of the lower plate is joined to the frame. a vehicle width direction inner surface of the upper plate side wall portion of the upper plate on the vehicle width direction outer surface or inner surface of the lower plate side wall portion of the lower plate whose floor portion is joined to the frame in the second step; Alternatively, since the third step of overlapping and joining the outer surfaces is provided, the work of adjusting the position of the upper plate with respect to the tank can be easily performed.

即ち、上板（上板側壁部）の下端と下板（下板側壁部）の上端とを突き合わせて接合する場合のように、部材を削る作業や別部材を介在させる作業を行う必要がないので、タンクに対する上板の位置（高さ位置、傾斜角度）を容易に調整できる。特に、第３工程では、第２工程においてタンクに対する下板の位置を規定した状態で、下板に対する上板の重ね代を調整できる。よって、例えば、機器室を組み立ててから（下板と上板とを接合してから）、その機器室をタンクの車両後方側に配設する場合と比較して、タンクに対する上板の位置（高さ位置、傾斜角度）を容易に調整できる。その結果、タンクに対する上板の位置を調整する作業を行いやすくできる。 That is, unlike the case where the lower end of the upper plate (upper plate side wall portion) and the upper end of the lower plate (lower plate side wall portion) are butted and joined together, there is no need to perform the work of scraping the member or the work of interposing another member. Therefore, the position (height position, inclination angle) of the upper plate with respect to the tank can be easily adjusted. In particular, in the third step, the overlapping margin of the upper plate with respect to the lower plate can be adjusted while the position of the lower plate with respect to the tank is defined in the second step. Therefore, for example, after assembling the equipment room (after joining the lower plate and the upper plate), the position of the upper plate with respect to the tank ( (height position, tilt angle) can be easily adjusted. As a result, the work of adjusting the position of the top plate with respect to the tank can be facilitated.

本発明の第１実施形態におけるタンクローリの側面図である。It is a side view of a tank truck in a 1st embodiment of the present invention. 下板の背面斜視図である。It is a back perspective view of a lower plate. （ａ）は、上板の背面斜視図であり、（ｂ）は、上板の正面斜視図である。(a) is a rear perspective view of the upper plate, and (b) is a front perspective view of the upper plate. （ａ）は、タンクローリの部分拡大側面図であり、（ｂ）は、図４（ａ）のＩＶｂ－ＩＶｂ線で切断した機器室の部分拡大断面図である。(a) is a partially enlarged side view of a tank truck, and (b) is a partially enlarged cross-sectional view of an equipment chamber cut along line IVb-IVb of FIG. 4(a). （ａ）及び（ｂ）は、機器室の部分拡大背面斜視図である。(a) and (b) are partial enlarged rear perspective views of the equipment room.

以下、本発明の好ましい実施形態について、添付図面を参照して説明する。まず、図１を参照して、タンクローリ１０の全体構成について説明する。図１は、本発明の第１実施形態におけるタンクローリ１０の側面図である。なお、図１の矢印Ｕ，Ｄ、矢印Ｌ，Ｒ、矢印Ｆ，Ｂは、タンクローリ１０の車両上下方向、車両幅方向（左右方向）、車両前後方向をそれぞれ示す。図２以降においても同様である。 Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. First, referring to FIG. 1, the overall configuration of the tank truck 10 will be described. FIG. 1 is a side view of a tank truck 10 according to a first embodiment of the invention. Note that arrows U, D, arrows L, R, and arrows F, B in FIG. The same applies to FIG. 2 and subsequent figures.

タンクローリ１０は、液体や気体等の積載物（本実施例では液化天然ガス）を輸送するための車両であり、積載物が積載される円筒状のタンク１２と、そのタンク１２が架装される車体１４と、それらタンク１２および車体１４の間に介設される一対のサブフレーム１６と、タンク１２の車両後方側（図１の矢印Ｂ方向側）に配設される機器室１００と、タンク１２および機器室１００の車両下方側（図１の矢印Ｄ方向側）に配設される加圧蒸発器２０と、を備えて構成される。 The tank lorry 10 is a vehicle for transporting loads such as liquids and gases (liquefied natural gas in this embodiment). A vehicle body 14, a pair of subframes 16 interposed between the tank 12 and the vehicle body 14, an equipment room 100 disposed on the vehicle rear side of the tank 12 (arrow B direction side in FIG. 1), and the tank. 12 and a pressurized evaporator 20 disposed on the vehicle lower side of the equipment room 100 (arrow D direction side in FIG. 1).

車体１４は、運転室としてのキャブ１４ａと、車体１４の骨格をなす一対のシャシフレーム１４ｂと、前輪１４ｃを有し地面に対してキャブ１４ａを支持する前部走行装置と、後輪１４ｄを有し地面に対して車体１４の車両後方側（図１の矢印Ｂ方向側）を支持する後部走行装置とを備える。 The vehicle body 14 has a cab 14a as a driver's cab, a pair of chassis frames 14b forming the skeleton of the vehicle body 14, a front traveling device having front wheels 14c and supporting the cab 14a on the ground, and rear wheels 14d. and a rear traveling device for supporting the vehicle rear side (arrow B direction side in FIG. 1) of the vehicle body 14 with respect to the ground.

一対のシャシフレーム１４ｂは、車両幅方向（図１の矢印Ｌ，Ｒ方向）に所定間隔を隔てつつ車両前後方向（図１の矢印Ｆ，Ｂ方向）に延設される梁状の部材であり、その対向間に、複数の連結部材が連結され、平面視梯子状に形成される。タンク１２は、一対のシャシフレーム１４ｂに、一対のサブフレーム１６を介して架装される。 The pair of chassis frames 14b are beam-like members extending in the vehicle front-rear direction (arrows F, B direction in FIG. 1) while being spaced apart by a predetermined distance in the vehicle width direction (arrows L, R direction in FIG. 1). , and a plurality of connecting members are connected between them to form a ladder shape in a plan view. The tank 12 is mounted on a pair of chassis frames 14 b via a pair of sub-frames 16 .

サブフレーム１６は、車両前後方向に延設される梁状の部材である。 The subframe 16 is a beam-shaped member extending in the vehicle front-rear direction.

一対のサブフレーム１６にタンク１２が支持されることで、サブフレーム１６の対向間にタンク１２を傾斜した状態に配設できる。この場合は積載物が傾斜した側に集まるので、積載物を払い出す際に傾斜下側から払い出すことで、タンク内に残留する積載物の量を減じることが出来る。なお、タンク１２は、車両後方側（図１の矢印Ｂ方向側）へ向けて下降傾斜した状態（本実施形態ではシャシフレーム１４ｂに対するタンク１２の傾斜角度が略１度）とされる。 Since the tank 12 is supported by the pair of sub-frames 16, the tank 12 can be arranged in an inclined state between the opposing sub-frames 16. - 特許庁In this case, since the load is collected on the inclined side, the amount of the load remaining in the tank can be reduced by discharging the load from the lower side of the slope. The tank 12 is inclined downward toward the rear side of the vehicle (in the direction of the arrow B in FIG. 1) (in this embodiment, the tank 12 is inclined at an angle of approximately 1 degree with respect to the chassis frame 14b).

機器室１００は、複数の配管、弁等が格納される箱状の部位である。機器室１００は、後述するように、下板１１０（図２参照）と上板１２０（図３参照）とを備え、それらを接合することで（図４参照）、格納空間を内部に有する箱状に形成される。なお、機器室１００の後壁（矢印Ｂ方向側の壁）には、開閉可能な扉（図示せず）が配設され、その扉を開放することで、機器室１００内の弁等の操作が可能とされる。 The equipment room 100 is a box-shaped part in which a plurality of pipes, valves, etc. are stored. As will be described later, the equipment room 100 includes a lower plate 110 (see FIG. 2) and an upper plate 120 (see FIG. 3), which are joined (see FIG. 4) to form a box having a storage space inside. formed into a shape. A door (not shown) that can be opened and closed is provided on the rear wall of the equipment room 100 (the wall in the direction of the arrow B). is allowed.

次いで、図２及び図３を参照して、機器室１００の構成について説明する。図２は、下板１１０の背面斜視図である。 Next, the configuration of the equipment room 100 will be described with reference to FIGS. 2 and 3. FIG. FIG. 2 is a rear perspective view of the lower plate 110. FIG.

図２に示すように、シャシフレーム１４ｂは、タンク１２よりも車両後方側（矢印Ｂ方向側）へ延設され、そのシャシフレーム１４ｂの延設された部分と下板１１０との間には、機器室フレーム１８が介設される。即ち、機器室１００は、機器室フレーム１８を介してシャシフレーム１４ｂに架設される（図４参照）。 As shown in FIG. 2, the chassis frame 14b extends toward the rear of the vehicle (in the direction of arrow B) from the tank 12. Between the extended portion of the chassis frame 14b and the lower plate 110, a An equipment room frame 18 is interposed. That is, the equipment room 100 is constructed over the chassis frame 14b via the equipment room frame 18 (see FIG. 4).

機器室フレーム１８は、車両前後方向（矢印Ｆ，Ｂ方向）に延設される一対の梁状の部材（縦梁１８ａ）と、車両幅方向（矢印Ｌ，Ｒ方向）に延設される複数本（本実施形態では３本）の梁状の部材（横梁１８ｂ）とから平面視格子状に形成され、縦梁１８ａ及び横梁１８ｂの上部側が下板１１０に溶接されると共に、縦梁１８ａの下部側がボルトによりシャシフレーム１４ｂに固定される。 The equipment room frame 18 includes a pair of beam-like members (longitudinal beams 18a) extending in the vehicle front-rear direction (arrows F and B directions) and a plurality of beam-like members extending in the vehicle width direction (arrows L and R directions). This (three in this embodiment) beam-shaped members (horizontal beams 18b) are formed in a lattice shape in plan view, and the upper sides of the vertical beams 18a and horizontal beams 18b are welded to the lower plate 110, and the vertical beams 18a The lower side is fixed to the chassis frame 14b with bolts.

下板１１０は、機器室１００の床を形成する床部１１１と、その床部１１１の車両幅方向両側（矢印Ｌ方向側および矢印Ｒ方向側）に立設される一対の側壁部１１２と、床部１１１の車両後方側（矢印Ｂ方向側）に立設される後壁部１１３とを備え、ステンレス製（本実施形態ではＳＵＳ３０４）の板を折り曲げて形成される。 The lower plate 110 includes a floor portion 111 forming the floor of the equipment room 100, a pair of side wall portions 112 erected on both sides of the floor portion 111 in the vehicle width direction (arrow L direction side and arrow R direction side), It includes a rear wall portion 113 erected on the vehicle rear side (arrow B direction side) of the floor portion 111, and is formed by bending a plate made of stainless steel (SUS304 in this embodiment).

側壁部１１２は、機器室１００の側壁の一部を形成する部位であり、車両上方（矢印Ｕ方向）へ向けて折り曲げられ、床部１１１の上面からの立設寸法が寸法Ｈ１とされる。後壁部１１３は、機器室１００の後壁の一部を形成する部位であり、車両下方（矢印Ｄ方向）へ向けて折り曲げられ、床部１１１の上面からの立設寸法が寸法Ｈ２とされる。 The side wall portion 112 is a part forming part of the side wall of the equipment room 100, and is bent upward (in the direction of arrow U) of the vehicle, and has a standing dimension H1 from the upper surface of the floor portion 111. As shown in FIG. The rear wall portion 113 is a portion that forms a part of the rear wall of the equipment room 100, is bent downward (in the direction of arrow D) of the vehicle, and has a standing dimension of H2 from the upper surface of the floor portion 111. be.

側壁部１１２の車両前方側（矢印Ｆ方向側）の端部は、タンク１２の車両後方側（矢印Ｂ方向側）の端部よりも車両前方側に位置し、側壁部１１２の車両後方側の端部は、床部１１１の車両後方側の端部と略一致される。後壁部１１３の車両幅方向（矢印Ｌ，Ｒ方向）の端部と側壁部１１２の外側面（車両幅方向外側の面）との間には、車両幅方向に寸法Ｌ１の間隔が形成される。 The end portion of the side wall portion 112 on the vehicle front side (arrow F direction side) is located on the vehicle front side of the vehicle rear side (arrow B direction side) end portion of the tank 12 . The end substantially coincides with the end of the floor 111 on the vehicle rear side. A space of dimension L1 is formed in the vehicle width direction between the end portion of the rear wall portion 113 in the vehicle width direction (directions of arrows L and R) and the outer surface (the outer surface in the vehicle width direction) of the side wall portion 112 . be.

このように、側壁部１１２と後壁部１１３との間に寸法Ｌ１の間隔が形成されることで、床部１１１に対する側壁部１１２又は後壁部１１３の折り曲げ部分の端部まで折り曲げ用治具を当接させることができると共に、折り曲げ部分どうしが重なることを抑制できる。よって、下板１１０の折り曲げ作業を行いやすくできると共に、下板１１０の寸法精度を向上でき、上板１２０との溶接による接合を行いやすくできる。 In this way, the gap of the dimension L1 is formed between the side wall portion 112 and the rear wall portion 113, so that the bending jig can extend to the end portion of the bent portion of the side wall portion 112 or the rear wall portion 113 with respect to the floor portion 111. can be brought into contact with each other, and overlapping of the bent portions can be suppressed. Therefore, the lower plate 110 can be easily bent, the dimensional accuracy of the lower plate 110 can be improved, and the joining to the upper plate 120 by welding can be easily performed.

図３（ａ）は、上板１２０の背面斜視図であり、図３（ｂ）は、上板１２０の正面斜視図である。なお、図３（ｂ）には、前板１３０が二点鎖線を用いて模式的に図示される。 3(a) is a rear perspective view of the top plate 120, and FIG. 3(b) is a front perspective view of the top plate 120. FIG. In addition, in FIG.3(b), the front plate 130 is illustrated typically using a two-dot chain line.

図３に示すように、上板１２０は、機器室１００の天井壁を形成する天井壁部１２１と、その天井壁部１２１の車両幅方向両側（矢印Ｌ方向側および矢印Ｒ方向側）に配設される一対の側壁部１２２と、天井壁部１２１及び側壁部１２２の車両後方側（矢印Ｂ方向側）に配設される後壁部１２３とを備え、一般構造用圧延鋼材製（本実施形態ではＳＳ４００）の板を折り曲げると共に溶接により接合して形成される。 As shown in FIG. 3, the upper plate 120 is arranged on a ceiling wall portion 121 forming the ceiling wall of the equipment room 100 and on both sides of the ceiling wall portion 121 in the vehicle width direction (the arrow L direction side and the arrow R direction side). A pair of side wall portions 122 provided and a rear wall portion 123 disposed on the vehicle rear side (arrow B direction side) of the ceiling wall portion 121 and the side wall portions 122, and made of general structural rolled steel (this embodiment The shape is formed by bending a plate of SS400) and joining it by welding.

なお、本実施形態では、側壁部１２２及び後壁部１２３が板を折り曲げて一体の部材として形成され、その一体の部材（側壁部１２２及び後壁部１２３）が天井壁部１２１に溶接により接合される。 In this embodiment, the side wall portion 122 and the rear wall portion 123 are formed as an integral member by bending a plate, and the integral member (the side wall portion 122 and the rear wall portion 123) is joined to the ceiling wall portion 121 by welding. be done.

天井壁部１２１は、タンク１２の外形に沿って円弧状に湾曲して形成される。側壁部１２２及び後壁部１２３は、平坦状に形成され、機器室１００の側壁の一部および後壁の一部をそれぞれ形成する。なお、後壁部１２３の開口部分には、上述した扉（図示せず）が開閉可能に配設される。 The ceiling wall portion 121 is curved in an arc shape along the outer shape of the tank 12 . The side wall portion 122 and the rear wall portion 123 are flat and form part of the side wall and part of the rear wall of the equipment chamber 100, respectively. In addition, the door (not shown) described above is arranged in an opening portion of the rear wall portion 123 so as to be able to be opened and closed.

側壁部１２２の車両前後方向（矢印Ｆ，Ｂ方向）寸法は、側壁部１１２（図２参照）の車両前後方向寸法と略同一に設定される。また、一対の側壁部１２２の車両幅方向（矢印Ｌ，Ｒ方向）内側面どうしの間隔は、一対の側壁部１１２（図２参照）の車両幅方向外側面どうしの間隔と略同一とされる。 The dimension of the side wall portion 122 in the vehicle front-rear direction (directions of arrows F and B) is set substantially equal to the vehicle front-rear direction dimension of the side wall portion 112 (see FIG. 2). In addition, the distance between the vehicle width direction (arrow L, R direction) inner surfaces of the pair of side wall portions 122 is substantially the same as the distance between the vehicle width direction outer surfaces of the pair of side wall portions 112 (see FIG. 2). .

後壁部１２３には、側壁部１２２の下縁よりも車両下方（矢印Ｄ方向）へ張り出す張出領域１２３ａが形成される。張出領域１２３ａの車両上下方向（矢印Ｕ，Ｄ方向）における張出寸法は寸法Ｈ３とされ、後壁部１１３の寸法Ｈ２（図２参照）よりも大きな寸法とされる（Ｈ２＜Ｈ３）。 The rear wall portion 123 is formed with an overhanging region 123a that overhangs the lower edge of the side wall portion 122 toward the vehicle downward direction (arrow D direction). The overhanging dimension of the overhanging region 123a in the vehicle vertical direction (directions of arrows U and D) is H3, which is larger than the dimension H2 (see FIG. 2) of the rear wall portion 113 (H2<H3).

張出領域１２３ａの車両幅方向（矢印Ｌ，Ｒ方向）外方側の端部と側壁部１２２の車両幅方向内側面との間には、車両幅方向に寸法Ｌ２の間隔が形成される。なお、張出領域１２３ａの寸法Ｌ２は後壁部１１３の寸法Ｌ１（図２参照）と略同一とされる（Ｌ２≒Ｌ１）。 A space of dimension L2 is formed in the vehicle width direction between the vehicle width direction (arrow L, R direction) outer end of the overhanging region 123a and the vehicle width direction inner surface of the side wall portion 122 . Note that the dimension L2 of the projecting region 123a is substantially the same as the dimension L1 (see FIG. 2) of the rear wall portion 113 (L2≈L1).

このように、側壁部１２２と張出領域１２３ａとの間に寸法Ｌ２の間隔が形成されることで、側壁部１２２と後壁部１２３との間の折り曲げ部分の端部（張出領域１２３ａ側の端部）の変形性に張出領域１２３ａが影響することを抑制でき、寸法精度を向上できる。 In this way, the gap of dimension L2 is formed between the side wall portion 122 and the overhanging region 123a, so that the end portion of the bent portion between the side wall portion 122 and the rear wall portion 123 (on the side of the overhanging region 123a) end) can be suppressed from affecting the deformability of the projecting region 123a, and the dimensional accuracy can be improved.

また、上記寸法Ｌ２の間隔により、下板１１０に上板１２０を接合する際には、下板１１０（床部１１１に対する側壁部１１２）の折り曲げ部分の端面Ｃ（図５（ａ）参照）に、上板１２０（後壁部１２３又は張出領域１２３ａ）の内面を当接させる必要がないので、両者の接合を行いやすくできる。 In addition, due to the interval of the dimension L2, when joining the upper plate 120 to the lower plate 110, the end face C (see FIG. 5A) of the bent portion of the lower plate 110 (the side wall portion 112 with respect to the floor portion 111) Since it is not necessary to bring the inner surface of the upper plate 120 (the rear wall portion 123 or the projecting region 123a) into contact with the inner surface of the upper plate 120, both can be easily joined.

前板１３０は、機器室１００の前壁を形成する部材であり、後述するように、下板１１０に上板１２０が溶接により接合された後、タンク１２の外側面と、側壁部１２２の内側面と、床部１１１（図２参照）の上面とに溶接により接合される。なお、前板１３０は、一般構造用圧延鋼材製（本実施形態ではＳＳ４００）の板から形成される。 The front plate 130 is a member that forms the front wall of the equipment chamber 100. As will be described later, after the upper plate 120 is welded to the lower plate 110, the outer surface of the tank 12 and the inner surface of the side wall portion 122 are formed. It is joined by welding to the side surface and the upper surface of the floor 111 (see FIG. 2). The front plate 130 is formed from a plate made of general structural rolled steel (SS400 in this embodiment).

次いで、図４及び図５を参照して、タンクローリ１０の製造方法について説明する。図４（ａ）は、タンクローリ１０の部分拡大側面図であり、図４（ｂ）は、図４（ａ）のＩＶｂ－ＩＶｂ線で切断した機器室１００の部分拡大断面図である。図５（ａ）及び図５（ｂ）は、機器室１００の部分拡大背面斜視図であり、図５（ａ）では接合前の状態が、図５（ｂ）では接合後の状態が、それぞれ図示される。 Next, a method for manufacturing the tank truck 10 will be described with reference to FIGS. 4 and 5. FIG. 4(a) is a partially enlarged side view of the tank truck 10, and FIG. 4(b) is a partially enlarged cross-sectional view of the equipment chamber 100 cut along line IVb-IVb of FIG. 4(a). 5(a) and 5(b) are partial enlarged rear perspective views of the equipment room 100. FIG. 5(a) shows the state before joining, and FIG. 5(b) shows the state after joining. illustrated.

タンクローリ１０の製造は、シャシフレーム１４ｂにサブフレーム１６を介してタンク１２を架装し（第１工程）、次いで、タンク１２が架装されたシャシフレーム１４ｂに機器室フレーム１８を介して下板１１０を架装する（第２工程、図２参照）。 The tank lorry 10 is manufactured by mounting the tank 12 on the chassis frame 14b via the subframe 16 (first step), and then mounting the tank 12 on the chassis frame 14b via the equipment room frame 18 on the lower plate. 110 is mounted (second step, see FIG. 2).

なお、第２工程では、シャシフレーム１４ｂに機器室フレーム１８を接合した後に、機器室フレーム１８に下板１１０（床部１１１）を接合しても良く、下板１１０（床部１１１）を機器室フレーム１８に接合した後に、機器室フレーム１８をシャシフレーム１４ｂに接合しても良い。 In the second step, the lower plate 110 (floor portion 111) may be joined to the equipment room frame 18 after the equipment room frame 18 is joined to the chassis frame 14b. After joining to the room frame 18, the equipment room frame 18 may be joined to the chassis frame 14b.

図４及び図５に示すように、第２工程によりシャシフレーム１４ｂに機器室フレーム１８を介して下板１１０を架装した後は、下板１１０の一対の側壁部１１２の車両幅方向外側面（図４（ｂ）左側の面）に、上板１２０の一対の側壁部１２２の車両幅方向内側面（図４（ｂ）右側の面）を重ね合わせて溶接により両者を接合する（第３工程）。 As shown in FIGS. 4 and 5, after the lower plate 110 is mounted on the chassis frame 14b via the equipment room frame 18 in the second step, the vehicle width direction outer surfaces of the pair of side wall portions 112 of the lower plate 110 are The vehicle width direction inner side surfaces (right side surfaces in FIG. 4(b)) of the pair of side wall portions 122 of the top plate 120 are superimposed on (the left side surface in FIG. 4(b)) and joined together by welding (third side surface). process).

ここで、第３工程では、タンク１２に対する上板１２０の位置（高さ位置）を調整する必要があり、タンク１２が傾斜されている場合には、上板１２０の傾斜角度も調整する必要がある。 Here, in the third step, it is necessary to adjust the position (height position) of the top plate 120 with respect to the tank 12, and if the tank 12 is tilted, it is also necessary to adjust the tilt angle of the top plate 120. be.

下板１１０の側壁部１１２の上端（車両上方側の端面）に、上板１２０の側壁部１２２の下端（車両下方側の端面）を突き合わせて溶接により両者を接合する従来の製造方法では、タンク１２に対する上板１２０の位置（高さ位置、傾斜各祖）を調整するために、突合せ部分（側壁部１１２の上端または側壁部１２２の下端）を削る作業や、突き合わせ部分に別部材を介在させる作業が必要となり、手間が嵩む。 In a conventional manufacturing method in which the upper end of the side wall portion 112 of the lower plate 110 (the end face on the upper side of the vehicle) and the lower end of the side wall portion 122 of the upper plate 120 (the end face on the lower side of the vehicle) are brought into contact with each other and the two are joined by welding, the tank In order to adjust the position (height position, inclination) of the upper plate 120 with respect to 12, the abutting portion (the upper end of the side wall portion 112 or the lower end of the side wall portion 122) is scraped or another member is interposed in the abutting portion. It requires work and is time consuming.

これに対し、上記製造方法（第３工程）によれば、下板１１０（側壁部１１２）に対する上板１２０（側壁部１２２）の重ね代を変更すれば、上板１２０を、矢印Ｕ，Ｄ方向へ移動させることや、矢印Ｌ，Ｒを中心として回転させることができる。これにより、タンク１２に対する上板１２０の位置（高さ位置、傾斜角度）を容易に調整することができる。 On the other hand, according to the above manufacturing method (third step), if the overlapping margin of the upper plate 120 (side wall portion 122) with respect to the lower plate 110 (side wall portion 112) is changed, the upper plate 120 can be changed by the arrows U and D. It can be moved in a direction or rotated around arrows L and R. Thereby, the position (height position, inclination angle) of the top plate 120 with respect to the tank 12 can be easily adjusted.

特に、第３工程では、第２工程においてタンク１２に対する下板１１０の位置を規定した状態で、下板１１０に対する上板１２０の重ね代を調整できる。よって、例えば、機器室１００を組み立ててから（下板１１０と上板１２０とを接合してから）、その機器室１００をタンク１２の車両後方側に配設する場合（タンク１２及び機器室１００の外形がそれぞれ定まってしまうため、それらの製造公差を吸収することが困難となる）と比較して、タンク１２に対する上板１２０の位置（高さ位置、傾斜角度）を容易に調整できる。 In particular, in the third step, the overlapping margin of the upper plate 120 with respect to the lower plate 110 can be adjusted while the position of the lower plate 110 with respect to the tank 12 is defined in the second step. Therefore, for example, after assembling the equipment room 100 (after joining the lower plate 110 and the upper plate 120), when disposing the equipment room 100 on the vehicle rear side of the tank 12 (the tank 12 and the equipment room 100 are fixed, making it difficult to absorb manufacturing tolerances), the position (height position, inclination angle) of the top plate 120 with respect to the tank 12 can be easily adjusted.

本実施形態では、下板１１０の一対の側壁部１１２の車両幅方向外側面（図４（ｂ）左側の面）に、上板１２０の一対の側壁部１２２の車両幅方向内側面（図４（ｂ）右側の面）を重ね合わせて溶接するので、側壁部１２２の外面を流下する雨水などの水が機器室１００の内部に侵入することを抑制できる。 In the present embodiment, the pair of side wall portions 112 of the lower plate 110 are positioned on the vehicle width direction outer surface (the left surface in FIG. Since (b) the right surface) is overlapped and welded, it is possible to suppress water such as rainwater flowing down the outer surface of the side wall portion 122 from entering the inside of the equipment chamber 100 .

第３工程における下板１１０の側壁部１１２と上板１２０の側壁部１２２との溶接は、上板１２０の側壁部１２２の下端（図４（ｂ）下側の端面）と下板１１０の側壁部１１２の車両幅方向外側面（図４（ｂ）左側の面）との溶接部分Ａ１が断続溶接（本実施形態では、溶接長さ略３０ｍｍ、ピッチ略１００ｍｍ）により行われ、下板１１０の側壁部１１２の上端（図４（ｂ）上側の端面）と上板１２０の側壁部１２２の車両幅方向内側面（図４（ｂ）右側の面）との溶接部分Ａ２が連続溶接により行われる。 The welding of the side wall portion 112 of the lower plate 110 and the side wall portion 122 of the upper plate 120 in the third step is performed by The welded portion A1 between the portion 112 and the outer surface in the vehicle width direction (the left surface in FIG. 4B) is intermittently welded (in this embodiment, the welding length is approximately 30 mm and the pitch is approximately 100 mm). A welded portion A2 between the upper end of the side wall portion 112 (the upper end surface in FIG. 4B) and the vehicle width direction inner surface of the side wall portion 122 of the upper plate 120 (the right surface in FIG. 4B) is continuously welded. .

これにより、溶接作業が行いやすい溶接部分Ａ２（下板１１０の床部１１１から作業者が下向き姿勢で溶接作業が行え、溶接棒が操作しやすい）には連続溶接を適用し、溶接作業が行い難い溶接部分Ａ１（地面から作業者が上向き姿勢で溶接作業を行う必要があるため、溶接棒の操作が行い難い）には断続溶接を適用できる。その結果、溶接作業の作業性を向上させつつ、下板１１０（側壁部１１２）と上板１２０（側壁部１２２）との接合強度を確保できる。 As a result, continuous welding is applied to the welding portion A2 where the welding work can be easily performed (the worker can perform the welding work in a downward posture from the floor 111 of the lower plate 110, and the welding rod can be easily operated), and the welding work is performed. Intermittent welding can be applied to the difficult-to-weld portion A1 (it is difficult for the operator to operate the welding rod because the welding operation must be performed in an upward posture from the ground). As a result, the bonding strength between the lower plate 110 (side wall portion 112) and the upper plate 120 (side wall portion 122) can be ensured while improving the workability of the welding operation.

なお、本実施形態では、下板１１０の側壁部１１２の寸法Ｈ１（図２参照）が９０ｍｍに設定される。側壁部１１２の寸法Ｈ１は、機器室１００の側壁の車両上下方向（矢印Ｕ，Ｄ方向）寸法（床部１１１の上面から、天井壁部１２１と側壁部１２２との境界までの寸法）の略半分よりも小さい寸法（例えば、略３７０ｍｍ以下）とされることが好ましい。ステンレス製の部材（下板１１０）の使用量を抑制して、材料コストを低減しつつ、溶接部分Ａ２における溶接の作業性を確保できるからである。また、上記した機器室１００の側壁の車両上下方向寸法が例えば２ｍを超えるような比較的大きな車両では、接合位置が高くなり過ぎることを抑制することで、溶接作業が危険の伴う高所作業となることを抑制できる。 In this embodiment, the dimension H1 (see FIG. 2) of the side wall portion 112 of the lower plate 110 is set to 90 mm. The dimension H1 of the side wall portion 112 is an approximation of the dimension of the side wall of the equipment room 100 in the vehicle vertical direction (directions of arrows U and D) (the dimension from the upper surface of the floor portion 111 to the boundary between the ceiling wall portion 121 and the side wall portion 122). A dimension smaller than half (for example, about 370 mm or less) is preferable. This is because the amount of the stainless steel member (lower plate 110) used can be suppressed and the workability of welding at the welded portion A2 can be ensured while reducing the material cost. In addition, in a relatively large vehicle in which the vehicle vertical dimension of the side wall of the equipment room 100 exceeds, for example, 2 m, by suppressing the joining position from becoming too high, welding work can be performed at a high place with danger. can prevent it from becoming

上述したように、下板１１０及び上板１２０の後壁部１１３，１２３には、寸法Ｌ１，Ｌ２の間隔が形成される（図２及び図３（ｂ）参照）。そのため、図５に示すように、下板１１０（床部１１１に対する側壁部１１２）の折り曲げ部分の端面Ｃに、上板１２０（後壁部１２３又は張出領域１２３ａ）の内面を当接させることを不要として、両者の接合を行いやすくできる。 As described above, the rear wall portions 113 and 123 of the lower plate 110 and the upper plate 120 are spaced apart by the dimensions L1 and L2 (see FIGS. 2 and 3B). Therefore, as shown in FIG. 5, the inner surface of the upper plate 120 (the rear wall portion 123 or the projecting region 123a) is brought into contact with the end face C of the bent portion of the lower plate 110 (the side wall portion 112 against the floor portion 111). is not required, making it easier to join the two.

一方で、後壁部１２３には、上記寸法Ｌ２により、開口部が形成されるため、本実施形態では、下板１１０及び上板１２０の内面にふさぎ板１４０が溶接により接合され、開口部がふさがれる。ふさぎ板１４０は、正面視矩形の板を折り曲げて形成され、一方の外側面が下板１１０の側壁部１１２の内側面に、他方の外側面が上板１２０の後壁部１２３及び張出領域１２３ａの内側面に、それぞれ対面される。なお、ふさぎ板１４０は、一般構造用圧延鋼材製（本実施形態ではＳＳ４００）の板から形成される。 On the other hand, since an opening is formed in the rear wall portion 123 with the dimension L2, in the present embodiment, the closing plate 140 is welded to the inner surfaces of the lower plate 110 and the upper plate 120 to form the opening. blocked. The closing plate 140 is formed by bending a rectangular plate in a front view, and has one outer surface on the inner surface of the side wall portion 112 of the lower plate 110 and the other outer surface on the rear wall portion 123 of the upper plate 120 and the projecting area. They face the inner surface of 123a respectively. The closing plate 140 is formed from a plate made of general structural rolled steel (SS400 in this embodiment).

第３工程では、下板１１０と上板１２０との接合と共に、タンク１２と上板１２０の天井壁部１２１との接合が行われる。また、それらの接合の後、前板１３０が、タンク１２、下板１１０及び上板１２０に接合される。 In the third step, the lower plate 110 and the upper plate 120 are joined, and the tank 12 and the ceiling wall portion 121 of the upper plate 120 are joined together. Also, after joining them, the front plate 130 is joined to the tank 12 , the lower plate 110 and the upper plate 120 .

以上、実施形態に基づき本発明を説明したが、本発明は上記実施形態に何ら限定されるものではなく、本発明の趣旨を逸脱しない範囲内で種々の改良変形が可能であることは容易に推察できるものである。 The present invention has been described above based on the embodiments, but the present invention is not limited to the above-described embodiments, and it is easily understood that various modifications and improvements are possible without departing from the scope of the present invention. It can be inferred.

上記実施形態で挙げた数値は一例であり、他の数値を採用することは当然可能である。例えば、横梁１８ｂの本数は、２本以下でも良く、３本以上でも良い。また、断続溶接の溶接条件（溶接長さ、ピッチ）も板厚などに応じて任意に設定できる。 The numerical values given in the above embodiment are examples, and it is naturally possible to employ other numerical values. For example, the number of horizontal beams 18b may be two or less, or three or more. In addition, the welding conditions (welding length, pitch) for intermittent welding can also be arbitrarily set according to plate thickness and the like.

上記実施形態では、一対の側壁部１１２の車両幅方向外側面に、一対の側壁部１２２の車両幅方向内側面を重ね合わせる場合を説明したが、次の配置としても良い。 In the above embodiment, the case where the vehicle width direction inner surface of the pair of side wall portions 122 overlaps with the vehicle width direction outer surface of the pair of side wall portions 112 has been described, but the following arrangement may be adopted.

例えば、一対の側壁部１１２の車両幅方向内側面に、一対の側壁部１２２の車両幅方向外側面を重ね合わせても良い。或いは、車幅方向一方側（例えば、矢印Ｌ方向側）では、側壁部１１２の車両幅方向外側面に、側壁部１２２の車両幅方向内側面を重ね合わせ、車幅方向他方側（例えば、矢印Ｒ方向側）では、側壁部１１２の車両幅方向内側面に、側壁部１２２の車両幅方向外側面を重ね合わせても良い。これらの配置であっても、上記実施形態の場合と同様に、下板１１０に対する上板１２０の重ね代を調整することで、タンク１２に対する上板１２０の位置（高さ位置、傾斜角度）を容易に調整できる。なお、側壁部１１２の車両幅方向内側面に側壁部１２２の車両幅方向外側面を重ね合わせる場合、溶接位置も当該重ね合わせ部に沿って行う。 For example, the vehicle width direction outer surfaces of the pair of side wall portions 122 may overlap the vehicle width direction inner surfaces of the pair of side wall portions 112 . Alternatively, on one side in the vehicle width direction (for example, the arrow L direction side), the vehicle width direction inner surface of the side wall portion 122 is superimposed on the vehicle width direction outer surface of the side wall portion 112, and the vehicle width direction other side (for example, the arrow L direction side) is overlapped. R-direction side), the vehicle width direction outer surface of the side wall portion 122 may overlap with the vehicle width direction inner surface of the side wall portion 112 . Even with these arrangements, the position (height position, inclination angle) of the upper plate 120 with respect to the tank 12 can be adjusted by adjusting the overlapping margin of the upper plate 120 with respect to the lower plate 110, as in the case of the above embodiment. Easy to adjust. When the vehicle width direction outer surface of the side wall portion 122 is overlapped with the vehicle width direction inner surface of the side wall portion 112, the welding position is also performed along the overlapping portion.

上記実施形態では、機器室フレーム１８の縦梁１８ａをサブフレーム１６とは別の部材から構成する場合を説明したが、サブフレーム１６をタンク１２の後方へ延設し、そのサブフレーム１６の延設部分に複数本の横梁１８ｂを接合して、機器室フレーム１８としても良い。 In the above-described embodiment, the vertical beam 18a of the equipment room frame 18 is made of a member different from the subframe 16. The equipment room frame 18 may be formed by joining a plurality of horizontal beams 18b to the installation portion.

上記実施形態では、下板１１０の後壁部１１３を車両下方（矢印Ｄ方向）へ向けて折り曲げる場合を説明したが、下板１１０の後壁部１１３を車両上方（矢印Ｕ方向）へ向けて折り曲げても良い。この場合でも、上記実施形態の場合と同様に、下板１１０（側壁部１１２）に対する上板１２０（側壁部１２２）の重ね代を変更し、上板１２０を矢印Ｌ，Ｒを中心として回転させた場合に、床部１１１に対する後壁部１１３の折り曲げ角度を調整することで、後壁部１１３に後壁部１２３を当接させることができる。 In the above embodiment, the case where the rear wall portion 113 of the lower plate 110 is bent toward the vehicle downward direction (the direction of the arrow D) has been described. You can bend it. Even in this case, as in the case of the above embodiment, the overlapping margin of the upper plate 120 (side wall portion 122) on the lower plate 110 (side wall portion 112) is changed, and the upper plate 120 is rotated around the arrows L and R. In this case, the rear wall portion 123 can be brought into contact with the rear wall portion 113 by adjusting the bending angle of the rear wall portion 113 with respect to the floor portion 111 .

上記実施形態では、タンク１２を車両後方側へ向けて下降傾斜させる場合を説明したが、タンク１２を車両前方側へ向けて下降傾斜させても良く、タンク１２を傾斜させず、シャシフレーム１４ｂと平行としても良い。 In the above embodiment, the case where the tank 12 is tilted downward toward the rear side of the vehicle has been described, but the tank 12 may be tilted downward toward the front side of the vehicle. They may be parallel.

上記実施形態では、本発明の適用対象（車両）として、タンクローリを例示したが、他の車両に本発明を適用しても良い。他の車両としては、タンクトレーラーやタンクセミトレーラーが例示される。 In the above-described embodiment, a tank lorry was exemplified as an application target (vehicle) of the present invention, but the present invention may be applied to other vehicles. Other vehicles are exemplified by tank trailers and tank semi-trailers.

１０ タンクローリ（車両）
１２ タンク
１４ｂ シャシフレーム（フレーム）
１６ サブフレーム（フレーム）
１８ 機器室フレーム（フレーム）
１００ 機器室
１１０ 下板
１１１ 床部
１１２ 側壁部（下板側壁部）
１２０ 上板
１２１ 天井壁部
１２２ 側壁部（上板側壁部）
矢印Ｌ，Ｒ 車両幅方向
矢印Ｕ，Ｄ 車両上下方向
矢印Ｆ，Ｂ 車両前後方向

10 tank truck (vehicle)
12 tank 14b chassis frame (frame)
16 subframes (frames)
18 Equipment room frame (frame)
100 equipment room 110 lower plate 111 floor 112 side wall (lower plate side wall)
120 upper plate 121 ceiling wall portion 122 side wall portion (upper plate side wall portion)
Arrows L, R Vehicle width direction arrows U, D Vehicle vertical direction arrows F, B Vehicle longitudinal direction

Claims (5)

フレームと、そのフレームに架装されるタンクと、そのタンクの車両後方側に配設される機器室とを備えた車両において、
前記機器室は、下板と、上板とを備え、
前記下板は、床を形成する床部と、その床部の車両幅方向両側に配設され側壁の一部を形成する下板側壁部とを備え、
前記上板は、前記タンクに沿って湾曲する天井壁を形成する天井壁部と、その天井壁部の車両幅方向両側に配設され側壁の一部を形成する上板側壁部とを備え、
前記上板側壁部の車両幅方向内側面または外側面が、前記下板側壁部の車両幅方向外側面または内側面に重ね合わされて接合されることを特徴とする車両。 A vehicle comprising a frame, a tank mounted on the frame, and an equipment room arranged behind the tank,
The equipment room comprises a lower plate and an upper plate,
The lower plate includes a floor portion that forms a floor, and lower plate side wall portions that are disposed on both sides of the floor portion in the vehicle width direction and form a part of the side wall,
The upper plate includes a ceiling wall portion that forms a ceiling wall that curves along the tank, and an upper plate side wall portion that is disposed on both sides of the ceiling wall portion in the vehicle width direction and forms a part of the side wall,
A vehicle, wherein a vehicle width direction inner side surface or an outer side surface of the upper plate side wall portion is overlapped and joined to a vehicle width direction outer side surface or an inner side surface of the lower plate side wall portion. 前記上板側壁部の車両幅方向内側面または外側面と前記下板側壁部の車両幅方向外側面または内側面とが重ね合わされる領域は、前記機器室の側壁の車両上下方向中央よりも下方に位置することを特徴とする請求項１記載の車両。 A region where the vehicle width direction inner side surface or outer side surface of the upper plate side wall portion and the vehicle width direction outer side surface or inner side surface of the lower plate side wall portion overlap is lower than the vehicle vertical direction center of the side wall of the equipment chamber. 2. The vehicle of claim 1, wherein the vehicle is located at 前記上板側壁部の車両幅方向内側面が、前記下板側壁部の車両幅方向外側面に重ね合わされて接合され、
前記下板側壁部の上端と前記上板側壁部の車両幅方向内側面とは、連続溶接により接合されることを特徴とする請求項１又は２に記載の車両。 The vehicle width direction inner surface of the upper plate side wall portion is superimposed and joined to the vehicle width direction outer surface of the lower plate side wall portion,
3. The vehicle according to claim 1, wherein the upper end of the lower side wall portion and the inner side surface of the upper side wall portion in the vehicle width direction are joined by continuous welding. 前記フレームは、前記タンクよりも車両後方側へ延設され、
前記下板が前記フレームに架装されることを特徴とする請求項１から３のいずれかに記載の車両。 The frame extends rearward of the vehicle from the tank,
4. The vehicle according to any one of claims 1 to 3, wherein the lower plate is mounted on the frame. フレームと、そのフレームに架装されるタンクと、そのタンクの車両後方側に配設される機器室とを備え、
前記機器室が、床を形成する床部、及び、前記床部の車両幅方向両側に配設され側壁の一部を形成する下板側壁部を有する下板と、前記タンクに沿って湾曲する天井壁を形成する天井壁部、及び、前記天井壁部の車両幅方向両側に配設され側壁の一部を形成する上板側壁部を有する上板とを備えた車両を製造する車両の製造方法において、
前記フレームに前記タンクを架装する第１工程と、
その第１工程により架装された前記タンクの車両後方側において、前記フレームに前記下板の前記床部を接合する第２工程と、
その第２工程により前記フレームに前記床部が接合された前記下板の前記下板側壁部の車両幅方向外側面または内側面に、前記上板の前記上板側壁部の車両幅方向内側面または外側面を重ね合わせて接合する第３工程とを備えることを特徴とする車両の製造方法。

Equipped with a frame, a tank mounted on the frame, and an equipment room arranged on the rear side of the vehicle of the tank,
The equipment room includes a floor portion forming a floor, a lower plate having lower plate side wall portions disposed on both sides of the floor portion in the vehicle width direction and forming a part of the side wall, and curved along the tank. Manufacture of a vehicle comprising a ceiling wall portion forming a ceiling wall, and an upper plate having upper plate side wall portions disposed on both sides in the vehicle width direction of the ceiling wall portion and forming a part of the side wall. in the method
a first step of mounting the tank on the frame;
a second step of joining the floor portion of the lower plate to the frame on the vehicle rear side of the tank mounted in the first step;
In the second step, the vehicle width direction inner surface of the upper plate side wall portion of the upper plate is attached to the vehicle width direction outer surface or inner surface of the lower plate side wall portion of the lower plate where the floor portion is joined to the frame. or a third step of superimposing and joining the outer surfaces.
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