Mobile vehicle tank mounting structure

Abstract

This improves the reliability of tank mounting by suppressing vibrations in the tanks that are mounted on mobile vehicles. [Solution] A tank mounting structure 20 for mounting a tank 10 for storing fluid on a mobile body 1, comprising a frame 2 provided on the mobile body 1, and a first mounting section 30A and a second mounting section 30B on which the tank 10 is mounted, wherein the first mounting section 30A is located above the frame 2 and the second mounting section 30B is located below the frame 2, and the first mounting section 30A and the second mounting section 30B are arranged side by side in the height direction of the mobile body and are fastened to the frame 2.

Description

Technical Field

[0001] The present invention relates to a tank mounting structure for a moving body such as a vehicle for mounting a tank such as a fuel tank.

Background Art

[0002] For example, in a moving body such as a truck, there is a type equipped with a tank between the cab and the loading platform. Patent Document 1 discloses a structure in which a plurality of hydrogen tanks are mounted between the cab and the cargo compartment.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, a tank mounted on a moving body such as a truck and its mounting structure may be subjected to vibration during running, for example. In this case, depending on the natural frequency of the tank or the mounting structure, for example, resonance vibration may be induced during the movement of the moving body, and it is conceivable that the tank will sway beyond the allowable range. In particular, in order to mount the tank with high space efficiency, when the tanks are arranged vertically and placed high in a tower shape, for example, the weight increases, and in addition, if the rigidity of the tank mounting structure is low, the above natural frequency decreases, making it easy to induce low-frequency resonance vibration and making the sway large.

[0005] The present invention was conceived by paying attention to such problems, and provides a tank mounting structure for a moving body that can improve the mounting reliability of the tank by suppressing the vibration of the tank mounted on the moving body.

Means for Solving the Problems

[0006] This project was undertaken to solve at least some of the above-mentioned problems and can be implemented in the following forms or applications. (1) The tank mounting structure for a mobile body according to this application example is a tank mounting structure for mounting a tank for storing fluid on a mobile body, comprising a frame provided on the mobile body, and a first mounting section and a second mounting section on which the tank is mounted, wherein the first mounting section is located above the frame and the second mounting section is located below the frame, and the first mounting section and the second mounting section are arranged side by side in the height direction of the mobile body and are fastened to the frame.

[0007] According to this application example, when a mobile body moves, vibrations occur in the mobile body as a result of the movement. These vibrations propagate to the first and second mounting sections, causing them to vibrate. Since the first mounting section is located above the frame of the mobile body and the second mounting section is located below the frame, it becomes possible to set it so that the vibrations of the second mounting section suppress the vibrations of the first mounting section. In other words, for example, the second mounting section can act as a countermast to the first mounting section. This makes it possible to suppress vibrations of the tank and its mounting structure, the first and second mounting sections. Furthermore, for example, if the first mounting section resonates, the resonance point (natural frequency) of the first mounting section can be manipulated by providing the second mounting section to avoid resonance. In this way, vibrations of the tank mounted on the mobile body can be suppressed, improving the reliability of tank mounting. In addition, the number of tanks that can be mounted can be increased by providing the second mounting section.

[0008] (2) Preferably, each of the tanks is oriented in the width direction of the moving body, and in the first mounting section, multiple tanks are arranged in the height direction, and in the second mounting section, one tank or multiple tanks are arranged in the length direction of the moving body. With this configuration, in the case of a moving body such as a vehicle with a frame, where there is vertical space above the frame but no vertical space below the frame, the available space can be effectively utilized to mount as many tanks as possible on the moving body, and more fluid can be stored in the tanks.

[0009] (3) The tanks mounted in the first mounting section and the second mounting section are preferably of substantially the same length in the width direction of the moving body and are arranged to utilize the entire width direction of the moving body. This configuration allows for a larger tank capacity, enabling the storage of more fluid in the tank.

[0010] (4) The first mounting section and the second mounting section preferably have a substantially box-shaped frame inside which the tank is arranged. This configuration allows the tank to be covered by the skeletal structure, protecting the tank and enabling it to be mounted on a mobile vehicle.

[0011] (5) The moving body is preferably a truck. This configuration makes it possible to suppress vibrations caused by vibrations generated during truck operation, even when these vibrations are applied to the first and second mounting section frames.

[0012] (6) Preferably the truck has a driver's cab and a cargo compartment, and the tank is located between the driver's cab and the cargo compartment. Because space is limited between the driver's cab and the cargo compartment of a truck, if the first loading unit is placed there, there is a risk that the first loading unit may interfere with the driver's cab or cargo compartment if its vibrations become large. However, even if vibrations generated during truck operation are applied to the first loading unit, the resulting vibrations can be suppressed, thus reducing this risk. [Effects of the Invention]

[0013] According to this invention, it will be possible to suppress vibrations of tanks mounted on mobile vehicles, thereby improving the reliability of tank mounting. [Brief explanation of the drawing]

[0014] [Figure 1] This is a side view of the main parts of a vehicle (truck) as a mobile body according to the embodiment. [Figure 2] This is a side view of the tank mounting structure of the mobile body according to the embodiment. [Figure 3] This is a front view of the tank mounting structure of the mobile body according to the embodiment. [Modes for carrying out the invention]

[0015] The embodiments of this invention will be described with reference to the drawings. The following embodiments are merely illustrative examples, and there is no intention to exclude various modifications or applications of techniques not explicitly shown in these embodiments. Each configuration of the embodiments described below can be modified in various ways without departing from their spirit. Furthermore, they can be selected or combined as needed.

[0016] The mobile body described below in this embodiment is a vehicle, specifically a truck, and more specifically, a fuel cell electric truck equipped with a fuel cell. However, the mobile body in this case is not limited to a vehicle; it can be applied to any mobile body equipped with a tank. Furthermore, even if it is a vehicle, it is not limited to electric trucks; it can be broadly applied to electric vehicles and non-electric vehicles.

[0017] The tank according to the embodiment is a hydrogen tank (H2 tank) that stores hydrogen gas, which is the fuel of a fuel cell. In this case, the fuel cell corresponds to a fuel-using device for moving (running) a moving body. However, the tank according to the present case is not limited to a hydrogen tank that stores hydrogen gas. For example, it can be widely applied to a tank that stores a fluid fuel (such as gaseous fuels like natural gas or liquid fuels like gasoline, light oil, liquid hydrogen, etc.) for a fuel-using device such as an engine for moving (running) a moving body, as long as it is a tank mounted on a moving body and stores or fills a fluid. Also, the hydrogen in the H2 tank can be used not only as the fuel gas of the fuel cell but also as the fuel gas of a running engine (internal combustion engine) that operates using hydrogen as fuel.

[0018] Also, in FIGS. 1 to 3 for reference, it is assumed that the vehicle is on a horizontal plane. The front of the vehicle is designated as "FR", the rear of the vehicle is designated as "RR", the right side in the vehicle width direction is designated as "RH", the left side in the vehicle width direction is designated as "LH", vertically upward is designated as "UP", and vertically downward is designated as "DW", and these are indicated by arrows. Also, the front-rear direction of the vehicle is also referred to as the "vehicle length direction" or the "length direction", the vehicle width direction of the vehicle is referred to as the "left-right direction", and the vertical up-down direction is referred to as the "up-down direction".

[0019] [1. Overall Configuration] FIG. 1 is a side view of a main part of a truck equipped with a tank mounting structure of a moving body according to an embodiment. As shown in FIG. 1, the truck 1 according to the present embodiment includes a frame 2 having a pair of left and right side rails 3L and 3R (the right side rail 3R refers to FIG. 3) and a plurality of cross members (not shown) provided between these side rails 3L and 3R. The side rails 3L and 3R of the frame 2 are formed in a U-shaped cross section having a web portion 3a and flanges 3b and 3c protruding in one direction (inward in the vehicle width direction) from the upper and lower edges of the web portion 3a.

[0020] Above the front part of the frame 2, a cab (driver's cab) 5 is installed. Above the frame 2 behind the cab 5, a cargo compartment 6 is installed. Below the cab 5 (below the front part of the frame 2), the left and right front wheels 7 are supported by the frame 2 and provided. Below the rear part of the frame 2, the left and right rear wheels 8 are supported by the frame 2 and provided.

[0021] As described above, the truck (vehicle) 1 is a fuel cell electric vehicle driven by hydrogen gas as fuel. Specifically, it is a fuel cell electric truck. Therefore, this vehicle 1 includes a fuel cell system that generates electric power by the chemical reaction of hydrogen and oxygen, a drive motor that operates by the electric power generated by the fuel cell system and rotates and drives the drive wheels (for example, the rear wheels 8), and a hydrogen tank (H2 tank, simply also referred to as "tank") 10 that stores hydrogen used in the fuel cell system. In FIG. 1, only the main part configuration of the vehicle is shown, and the description of other components is omitted.

[0022] In this embodiment, a plurality of (six in this example) hydrogen tanks 10 are arranged vertically between the cab 5 and the cargo compartment 6 above the frame 2, and a plurality of (two in this example) are arranged side by side front and rear directly below the space between the cab 5 and the cargo compartment 6 below the frame 2. These hydrogen tanks 10 are mounted on a tank mounting structure 20. The tank mounting structure 20 will be described later. Each hydrogen tank 10 has a main body made of an aluminum alloy, and the periphery of the tank body is reinforced with CFRP (carbon fiber reinforced plastic).

[0023] Each hydrogen tank 10 has a middle part (cylindrical part) 10a formed in a cylindrical shape and both end parts 10b formed in, for example, a substantially disc shape (or a convex curved surface shape such as a substantially hemispherical shape) connected, and is formed elongated along the central axis direction of the cylindrical part 10a.

[0024] [2. Tank mounting structure] As shown in Figures 1 to 3, the tank mounting structure 20 includes a first mounting section 30A and a second mounting section 30B for mounting the hydrogen tank 10. In this embodiment, the tank mounting structure 20 further includes a plate-shaped auxiliary member 70 interposed between the support portions that support the first mounting section 30A and the second mounting section 30B on each side rail 3L, 3R of the frame 2.

[0025] The first mounting section 30A comprises a roughly box-shaped frame 40 that houses the tank 10, brackets 47 and 48 that fix the frame 40 to the frame 2, and an auxiliary stay (auxiliary member) 60 that assists in supporting the frame 40. The second mounting section 30B comprises a roughly box-shaped frame 50 that houses the tank 10, and the aforementioned brackets 47, 48 and bracket 49 that fix the frame 50 to the frame 2. Here, the brackets 47, 48 and 49 are made of cast iron, but some or all of the brackets 47, 48 and 49 may be made of sheet metal or other materials. The first mounting section 30A and the second mounting section 30B will be described below.

[0026] [2.1. First mounting section and second mounting section] The skeletal section 40 of the first mounting section 30A is formed as a whole into a thin rectangular parallelepiped in the front-rear direction, is located vertically above the frame, and its lower part is attached to the frame 2. In Figure 3, the hydrogen tank 10 is shown in gray for ease of identification. As shown in Figures 2 and 3, the skeletal section 40 comprises first skeletal members (corner skeletal members) 41 arranged at the four corners and extending in the vertical direction, second skeletal members 42 connecting the left and right first skeletal members 41, 41 to each other, third skeletal members 43 connecting the front and rear first skeletal members 41, 41 to each other, and fourth skeletal members 44 arranged on the left and right sides at the very bottom and connecting the lower ends of the front and rear first skeletal members 41, 41 to each other. Each skeletal member 41 to 44 may be made of hollow or solid columnar steel, or other materials such as angle steel may be used as appropriate.

[0027] Multiple second and third skeletal members 42 and 43 (six of each in this case) are arranged parallel to each other vertically. The tanks 10 are stored in the space between the fourth skeletal member 44 and the lowest second and third skeletal members 42 and 43, and in the spaces above that between the upper and lower second and third skeletal members 42 and 43. In this embodiment, six tanks 10 are stored vertically in the first mounting section 30A, and six second and six third skeletal members 42 and 43 are also arranged vertically.

[0028] Furthermore, the lowermost fourth skeletal members 44, 44 of the skeletal section 40 are fixed to the respective side rails 3L, 3R of the frame 2 via the front bracket 47 and the rear bracket 48. Upper outer stiffeners 45 and lower outer stiffeners 46 are attached to the side rails 3L and 3R to which the front brackets 47 and rear brackets 48 are attached.

[0029] The upper outer stiffener 45 is attached and fixed to the outer surface of the web portion 3a of the side rails 3L and 3R and the upper flange 3b that protrudes inward in the vehicle width direction from its upper edge, while the lower outer stiffener 46 is attached and fixed to the outer surface of the web portion 3a of the side rails 3L and 3R and the lower flange 3c that protrudes inward in the vehicle width direction from its lower edge. The front bracket 47 and the rear bracket 48 are mainly attached to the web portion 3a of the side rails 3L and 3R via their outer stiffeners 45 and 46.

[0030] The auxiliary stay 60 has its lower end 61 connected to the side rails 3L and 3R of the frame 2, and its upper end 62 connected to the frame 40 at a position offset from the lower end 61 in the front-rear and left-right directions, thereby assisting in the support of the frame 40. Specifically, the auxiliary stay 60 located in front of the frame 40 is inclined towards the rear and side of the vehicle, and the auxiliary stay 60 located behind the frame 40 is inclined towards the front and side of the vehicle.

[0031] The auxiliary stays 60 are arranged front to back on each of the side rails 3L and 3R, and are provided at each of the four corners in a plan view of the frame 40, for a total of four stays. The lower end 61 of each auxiliary stay 60 is fixed to the front bracket 47 and rear bracket 48 of each side rail 3L,3R via a ball joint 63. Furthermore, the upper end portion 62 of each auxiliary stay 60 is fixed via a ball joint 63 to a bracket 64 attached to each first skeletal member 41 of the skeletal structure 40.

[0032] The skeletal section 50 of the second mounting section 30B is formed as a whole in a thin rectangular parallelepiped shape in the vertical direction, is located vertically below the frame 2, and its upper part is attached to the frame 2. The skeletal section 50 comprises first skeletal members (corner skeletal members) 51 arranged at the four corners and extending in the vertical direction, second skeletal members 52 connecting the left and right first skeletal members 51, 51 to each other, third skeletal members 53 connecting the front and rear first skeletal members 51, 51 to each other, and a fourth skeletal member 54 arranged between the front and rear first skeletal members 51, 51 on the left and right sides and extending in the vertical direction. The second skeletal members 52 consist of four members, one vertically at the front and one vertically at the rear, and the third skeletal members 53 consist of four members, one vertically at the left and one vertically at the left and one horizontally. The upper and lower ends of the fourth skeletal member 54 are connected to the middle section of the third skeletal member 53, respectively. Each of the skeletal members 51 to 54 may be made of hollow or solid columnar steel, or other materials such as angle steel may be used as appropriate.

[0033] These first skeletal members 51, second skeletal member 52, and third skeletal member 53 form two rectangular parallelepiped spaces arranged front to back, and a tank 10 is stored in each space. Therefore, in this embodiment, two tanks 10 are stored in the second mounting section 30B, arranged front to back. In this embodiment, two tanks 10 are provided in the second mounting section 30B arranged in the front to back direction, but the number of tanks 10 provided in the second mounting section 30B arranged in the front to back direction is not limited and may be three or more, or it may be just one. Furthermore, the uppermost second skeletal members 52, 52 of the skeletal section 50 are fixed to the respective side rails 3L, 3R of the frame 2 via brackets 49, and further via front brackets 47 and rear brackets 48.

[0034] The tanks 10 mounted in the first mounting section 30A and the second mounting section 30B are of the same or nearly the same size. In this embodiment, the centers of gravity of the frame 40 of the first mounting section 30A and the frame 50 of the second mounting section 30B are located on the same or approximately the same vertical line when the tanks 10 are mounted on them. Furthermore, the frame 40 of the first mounting section 30A and the frame 50 of the second mounting section 30B are arranged to utilize the entire width of the vehicle. In other words, the first mounting section 30A and the second mounting section 30B are formed to be large in the width of the vehicle, to the extent that it does not interfere with other parts. Furthermore, the plate-shaped auxiliary members 70 interposed between each side rail 3L, 3R extend in the width direction (left-right direction) and vertical direction of the track 1, and are formed to be longer in the width direction.

[0035] The tank 10 has bosses (not shown) protruding from both ends, and these bosses are fixed to the frame parts 40 and 50 by support brackets (not shown). However, the tank 10 may also be mounted on brackets that extend in the left-right direction attached to, for example, the front and rear first frame members 41, and the bosses at both ends may be fixed after these brackets are placed on the tank 10. Furthermore, it may be fastened and secured using belts.

[0036] [3. Action and Effects] Since the tank mounting structure of the mobile body according to this embodiment is configured as described above, the following functions and effects can be obtained. According to this tank mounting structure 20, the skeletal section 40 of the first mounting section 30A is located vertically above the frame 2 (side rails 3L, 3R) of the track 1, and its lower part is attached to the side rails 3L, 3R of the frame 2. Therefore, the skeletal section 40 is subjected to vibrations as the track 1 moves. The skeletal section 40, which houses the heavy hydrogen tank 10, is greatly excited in the longitudinal or lateral direction by this vibration input, and there is a risk that it may induce relatively low-frequency resonant vibrations.

[0037] In contrast, in this tank mounting structure, the second mounting section 30B is positioned directly below the first mounting section 30A in the vertical direction, with the frame 2 (side rails 3L, 3R) in between. Therefore, the second mounting section 30B acts as a countermast to the first mounting section 30A, suppressing vibrations of the first mounting section 30A.

[0038] Specifically, when track 1 vibrates, this vibration propagates to the first mounting section 30A above frame 2 and the second mounting section 30B below frame 2, causing both the first and second mounting sections 30A and 30B to vibrate together. During this vibration, the support sections of frame 2 (side rails 3L, 3R) that support the first and second mounting sections 30A and 30B also undergo elastic deformation. Therefore, it is possible to configure the system so that the vibration of the second mounting section 30B suppresses the vibration of the first mounting section 30A via these support sections. This makes it possible to suppress vibrations in the tank 10 mounted on truck 1, thereby improving the reliability of tank mounting. In addition, the second mounting section 30B allows for an increase in the number of tanks 10, and thus increases the amount of hydrogen gas fuel mounted on truck 1. This increases the range of truck 1.

[0039] In particular, all tanks 10 are oriented in the vehicle width direction, and in the first mounting section 30A, multiple tanks (six in this embodiment) are arranged in the height direction, while in the second mounting section 30B, one tank or multiple tanks (two in this embodiment) are arranged in the front-to-back direction (length direction). Originally, the more tanks 10 are arranged vertically in the first mounting section 30A, the further the center of gravity moves vertically upward from the support part of the frame 2, and the larger the mass becomes. As a result, the natural frequency decreases, and low-frequency resonant vibrations are easily induced. On the other hand, the second mounting section 30B is equipped with tanks 10 arranged in the front-to-back direction rather than vertically, so its center of gravity is close to the support portion of the frame 2, and even if the mass is large, the natural frequency will be high. Therefore, the second mounting section 30B does not resonate with the first mounting section 30A, and instead acts to suppress vibrations of the first mounting section 30A. In this way, vibrations of the tank 10 mounted on track 1 can be suppressed, improving the reliability of the tank 10's mounting.

[0040] Since the tanks 10 mounted in the first mounting section 30A and the second mounting section 30B are arranged to utilize the entire width of the vehicle, a large capacity can be secured for the tanks 10, and a large amount of fluid can be stored in the tanks 10.

[0041] Furthermore, since the first mounting section 30A and the second mounting section 30B have roughly box-shaped frame sections 40 and 50 in which the tank 10 is arranged, they can be configured to cover the tank 10 with the frame sections 40 and 50, and can be mounted on the truck 1 in a way that protects the tank 10.

[0042] As in this embodiment, when the moving body is a track 1, even if vibrations generated when the track 1 is running are applied to the frame 40 of the first mounting section 30A, the second mounting section 30B can suppress the occurrence of resonant vibrations associated with this.

[0043] When the first mounting section 30A is positioned between the driver's cab 5 and the cargo compartment 6 of truck 1, the space between the driver's cab 5 and the cargo compartment 6 is limited. Therefore, if the vibration of the frame 40 becomes large, there is a risk that the frame 40 may interfere with the driver's cab 5 or the cargo compartment 6. However, even if vibrations generated when truck 1 is running are applied to the frame 40, the vibrations caused by resonance resulting from this can be suppressed by the second mounting section 30B as described above, thus reducing this risk.

[0044] In this embodiment, the auxiliary stay 60 is connected to the frame 2 and the skeletal section 40, assisting in the support of the skeletal section 40. As a result, the support rigidity of the skeletal section 40 is increased in both the front-rear and left-right directions. Consequently, the vibration amplitude is suppressed by the auxiliary stay 60, the natural frequency of the skeletal section 40 is also increased, and resonant vibrations are more easily suppressed.

[0045] Furthermore, in this embodiment, a plate-shaped auxiliary member 70 is interposed between each side rail 3L, 3R, extending in the vehicle width direction and vertically, and formed to be longer in the width direction. This contributes to suppressing the occurrence of resonant vibrations while suppressing an increase in the rigidity related to torsion of the frame 2. By suppressing an increase in the rigidity related to torsion of the frame 2, a good rigidity balance of the entire track 1 can be maintained.

[0046] [4. Others] The configuration of the above embodiment is merely an example and can be modified as appropriate without departing from the spirit of the present invention. For example, the tank mounting structure according to the above embodiment is described using a truck 1 as an example of a moving body, and the longitudinal direction of each tank 10 is oriented along the vehicle width direction of the truck 1, and the first mounting section 30A and the second mounting section 30B are configured accordingly, but the invention is not limited to this.

[0047] [5. Addendum] The following additional information is disclosed regarding the embodiments described above. (Note 1) A tank mounting structure for mounting a fluid storage tank on a mobile body, A frame provided on the aforementioned mobile body, The tank comprises a first mounting section and a second mounting section, The first mounting section is located above the frame, The second mounting section is located below the frame, The first mounting section and the second mounting section are arranged side by side in the height direction of the moving body and are fastened to the frame. A tank mounting structure for a mobile vehicle, characterized by the following features.

[0048] (Note 2) Each of the tanks is oriented in the width direction of the moving body, and in the first mounting section, multiple tanks are arranged in the height direction, while in the second mounting section, one tank or multiple tanks are arranged in the length direction of the moving body. A tank mounting structure for a mobile body as described in Appendix 1, characterized by the features described above.

[0049] (Note 3) The tanks mounted in the first and second mounting sections are all substantially the same length in the width direction of the moving body and are arranged to utilize the entire width direction. A tank mounting structure for a mobile body as described in Appendix 1 or 2, characterized by the above.

[0050] (Note 4) The first mounting section and the second mounting section each have a roughly box-shaped frame inside which the tank is arranged. A tank mounting structure for a mobile body as described in any one of the appendices 1 to 3, characterized by the above.

[0051] (Note 5) The moving object is a truck. A tank mounting structure for a mobile body according to any one of features 1 to 4.

[0052] (Note 6) The aforementioned truck is equipped with a driver's cab and a cargo compartment. The tank is located between the driver's cab and the cargo compartment. A tank mounting structure for a mobile body as described in Appendix 5, characterized by the features described herein. [Explanation of symbols]

[0053] 1. Trucks (vehicles) as mobile devices 2 frames 3L, 3R side rails 3a Web Department 3b, 3c flange 5. Cab (driver's cabin) 6. Cargo area 7 Front wheels 8 Rear wheels 10 tanks (hydrogen tanks) 10a Middle section (cylindrical section) of hydrogen tank 10 10b Both ends of hydrogen tank 10 20 Tank-equipped structure 30A First loading section 30B Second loading section 40 Skeletal parts 41 First skeletal member (corner skeletal member) of the skeletal section 40 42 Second skeletal member of skeletal section 40 43 Third skeletal member of skeletal section 40 44 Fourth skeletal member of the skeletal structure 40 45 Upper Outer Stiffener 46 Lower Outer Stifle 47 Front bracket 48 Rear bracket 49 Bracket 50 Skeletal parts 51 First skeletal member (corner skeletal member) of the skeletal section 50 52 Second skeletal member of skeletal section 50 53 Third skeletal member of the skeletal part 50 54 Fourth skeletal member of the skeletal structure 50 60 Auxiliary stay (support member) 61 Lower end of auxiliary stay 60 62 Upper end of auxiliary stay 60 63 Ball joint 64 brackets 70 Plate-shaped auxiliary member Front of a rear-wheel-drive vehicle RR (rear of the vehicle) RH (Right side in the vehicle width direction) LH (left side in the vehicle width direction) UP vertically upward DW Vertically downwards

Claims

1. A tank mounting structure for mounting a fluid storage tank on a mobile body, A frame provided on the aforementioned mobile body, The tank comprises a first mounting section and a second mounting section, The first mounting section is located above the frame, The second mounting section is located below the frame, The first mounting section and the second mounting section are arranged side by side in the height direction of the moving body and are fastened to the frame. A tank mounting structure for a mobile vehicle, characterized by the following features.

2. Each of the tanks is oriented in the width direction of the moving body, and in the first mounting section, multiple tanks are arranged in the height direction, while in the second mounting section, one tank or multiple tanks are arranged in the length direction of the moving body. A tank mounting structure for a mobile body according to claim 1, characterized in that

3. The tanks mounted in the first and second mounting sections are all substantially the same length in the width direction of the moving body and are arranged to utilize the entire width direction of the moving body. A tank mounting structure for a mobile body according to claim 1, characterized in that

4. The first mounting section and the second mounting section each have a roughly box-shaped frame inside which the tank is arranged. A tank mounting structure for a mobile body according to claim 1, characterized in that

5. The moving object is a truck. The tank mounting structure for the mobile body according to feature 1.

6. The aforementioned truck is equipped with a driver's cab and a cargo compartment. The tank is located between the driver's cab and the cargo compartment. The tank mounting structure for the mobile body according to feature 5.

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