Tank lorry

Abstract

To provide a tank lorry installed with a tilting posture of a tank in a vehicle body and having an easily formed structure.SOLUTION: This tank lorry comprises: a vehicle body 2; a tank body 5; and a tank support member 20. The tank body is installed with a tilting posture in the vehicle body via one or a plurality of tank support members. The tank support member 20 includes a tank receiver that supports the tank body 5 on the tank body side, a vehicle side part attached to the vehicle body 2 side, and a longitudinal wall that connects the tank receiver and the vehicle side part. The tank support member 20 is formed by joining an upper member 30 including the tank receiver and a part of or the whole longitudinal wall and a lower member 31 including the vehicle side part of or the whole longitudinal wall.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a vehicle equipped with a tank, such as a tank truck or a water tanker. [Background technology]

[0002] Tank trucks are known as vehicles for transporting liquids. Tank trucks are vehicles with tanks mounted on the vehicle body. Tanks mounted on tank trucks are often installed in a horizontal position on the vehicle body, but they may also be installed in a slightly inclined position on the vehicle body for the convenience of discharging the liquid inside (Patent Document 1). That is, the interior of a tank truck's tank is divided into multiple liquid chambers, each containing a liquid. For example, for flammable liquids such as gasoline and diesel, there are cases where the forced discharge of the liquid by pumping is restricted by law. Therefore, for flammable liquids, natural discharge by gravity may be required. For this reason, some tanker trucks have a structure in which the tank is installed on the vehicle body in a position that slopes downward toward the driver's seat, while other tanker trucks have a structure in which the tank is installed on the vehicle body in a position that slopes downward toward the tail.

[0003] In many cases, the tank of a tank truck is attached to the vehicle body via a tank support member. That is, in a tank truck, the tank is attached to the chassis frame of the vehicle body via the tank support member. Since the vehicle body is mass-produced and not specifically designed for a tank truck, the chassis frame is generally in a nearly horizontal position, while molding a tank with a slanted bottom is difficult.

[0004] For this reason, a structure has been adopted in which the tank is attached to the vehicle body via a tank support member with an inclined side, so that the tank is in an inclined position. That is, the tank support member with an inclined side is molded, and the tank support member with an inclined side is installed on the chassis frame in a horizontal position, and the tank is then installed on top of that, so that the tank is installed in an inclined position on the vehicle body. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 4563293 Summary of the Invention [Problem to be solved by the invention]

[0006] However, it is difficult to manufacture a tank support member having an inclined side, and molding the tank support member also requires a considerable amount of effort. The present invention focuses on the above-mentioned problems of the prior art and proposes a tank support member with an inclined side that is easy to manufacture. That is, the present invention proposes a tank car in which the tank is installed in an inclined position on the vehicle body, and has an easy-to-manufacture structure. [Means for solving the problem]

[0007] An aspect for solving the above-mentioned problems is a tank car having a vehicle body, a tank body, and a tank support member, in which the tank body is installed in an inclined position on the vehicle body via one or more of the tank support members, wherein the tank support member has a tank receiving portion on the tank body side that supports the tank body, a vehicle side portion that is attached to the vehicle body side, and a vertical wall portion that connects the tank receiving portion and the vehicle side portion, and the tank support member is a tank car characterized in that an upper side member that includes the tank receiving portion and part or all of the vertical wall portion, and a lower side member that includes the vehicle side portion and part or all of the vertical wall portion, are joined together.

[0008] In the tank car of this aspect, the tank body is installed in an inclined position on the vehicle body via one or more tank support members. The tank support member employed in this embodiment is formed by joining at least two members. That is, the tank support member employed in the tank car of this embodiment is formed by joining an upper member including the tank receiving portion and part or all of the vertical wall portion, and a lower member including the vehicle side portion and part or all of the vertical wall portion. According to this embodiment, the upper and lower sides of the upper member can be molded separately, making it easy to manufacture. Note that "attached to the vehicle body side" in "vehicle side portion attached to the vehicle body side" merely specifies the positional relationship when the tank support member is fixed to the vehicle body, and does not limit the welding points or fastening positions of screws or the like when fixing the tank support member to the vehicle body to the vehicle side. In other words, the tank support member is fixed to the vehicle body by welding or fastening elements such as screws, but the welding points and attachment positions of the fastening elements at that time may be anywhere on the tank support member. Generally, the vehicle side of the tank support member is placed on the chassis frame of the vehicle body and then screwed or welded to the chassis frame, but the chassis frame of the vehicle body and the upper side member of the tank support member may also be joined by welding or screws using a bracket or the like.

[0009] In the above aspect, it is desirable that the tank receiving portion be inclined with respect to the vehicle side portion.

[0010] According to this aspect, the tank body is inclined relative to the vehicle body.

[0011] In each of the above aspects, it is desirable that at least one of the upper side member and the lower side member has sides that are arranged above and below the installation posture and are not parallel to each other.

[0012] According to this aspect, the tank body is inclined relative to the vehicle body.

[0013] In each of the above-mentioned aspects, it is desirable that one of the upper side member and the lower side member has sides that are non-parallel to each other and that are positioned above and below the installation posture, and that the other of the upper side member and the lower side member has sides that are parallel to each other and that are positioned above and below the installation posture.

[0014] In this embodiment, either the upper or lower member has a parallel shape, which makes it easy to set a reference plane for joining the upper and lower members and to manufacture them.

[0015] An aspect of the tank support member is that it is a component of a tank car, and is interposed between the vehicle body and the tank body, and has a tank receiving portion on the tank body side that supports the tank body, a vehicle side portion that is attached to the vehicle body side, and a vertical wall portion that connects the tank receiving portion and the vehicle side portion, and the tank support member is characterized in that an upper side member that includes the tank receiving portion and part or all of the vertical wall portion is joined to a lower side member that includes the vehicle side portion and part or all of the vertical wall portion, and the tank receiving portion is inclined with respect to the vehicle side portion.

[0016] The tank support member of this embodiment is formed by joining at least two members. That is, the tank support member used in the tank car of this embodiment is formed by joining an upper member including the tank receiving portion and part or all of the vertical wall portion, and a lower member including the vehicle side portion and part or all of the vertical wall portion. According to this embodiment, the upper side of the upper member and the lower side of the lower member can be molded separately, making it easy to manufacture.

[0017] In each of the above-mentioned aspects, it is desirable that the upper side member be formed by cutting out a portion of the tank receiving portion and the vertical wall portion from a material frame having a tank receiving portion, a vehicle side portion attached to the vehicle main body, and a vertical wall portion connecting the tank receiving portion and the vehicle side portion, and that the lower side member be formed by cutting out a portion of the vehicle side portion and the vertical wall portion from a material frame having a tank receiving portion, a vehicle side portion attached to the vehicle main body, and a vertical wall portion connecting the tank receiving portion and the vehicle side portion.

[0018] According to this aspect, the upper and lower members can be made from material frames of the same shape. Since the material frames have the same shape, the material frames themselves are easy to make, and the tank support members are easy to make.

[0019] An aspect relating to a manufacturing method of a tank support member is a manufacturing method of a tank support member that manufactures a tank support member that is a component of a tank car and is interposed between the vehicle body and the tank body, characterized in that it includes a process of molding a material frame having a tank receiving portion that is on the tank body side and supports the tank body, a vehicle side portion that is attached to the vehicle body side, and a vertical wall portion that connects the tank receiving portion and the vehicle side portion, a process of cutting out the tank receiving portion and a portion of the vertical wall portion from one material frame to mold an upper side frame piece, a process of cutting out the vehicle side portion and a portion of the vertical wall portion from another material frame to mold a lower side frame piece, and a process of joining the upper side frame piece and the lower side frame piece.

[0020] In the manufacturing method of the tank support member of this aspect, material frames of the same shape are processed, and upper and lower frame pieces are cut out from the material frames of the same shape. Because the material frames have the same shape, the material frames themselves are easy to manufacture, and so is the tank support member.

[0021] In the above-described aspect, it is desirable that at least one of the upper frame piece and the lower frame piece be formed so that the sides disposed above and below the upper frame piece are non-parallel with respect to the installation posture.

[0022] In the tank support member manufactured by the manufacturing method of the tank support member of this aspect, the tank receiving portion is inclined with respect to the side of the vehicle. When the tank is fixed to the vehicle body via the tank support member manufactured by the manufacturing method of the tank support member of this aspect, the tank is in an inclined position. [Effects of the Invention]

[0023] The tank car of the present invention is easier to manufacture than conventional tank cars. [Brief explanation of the drawings]

[0024] [Figure 1] FIG. 1 is a front view of a tank truck according to an embodiment of the present invention. [Figure 2] FIG. 2 is a right side view of the tank truck of FIG. 1. [Figure 3] FIG. 2 is an exploded perspective view of the tank truck of FIG. 1. [Figure 4] FIG. 2 is an exploded perspective view of the support base of the tank truck of FIG. 1. [Figure 5] 2(a) is a front view of the tank support member of the tank truck of FIG. 1, and FIG. 2(b) is a cross-sectional view taken along line AA thereof. [Figure 6] 2A and 2B are explanatory views showing the manufacturing process of the tank support member of the tank truck of FIG. 1, in which (a) is a front view, a right side view, and a left side view of a material frame that will be used as the material for the upper side member, and (b) is a front view, a right side view, and a left side view showing the state in which the upper side frame piece has been cut out from the material frame. [Figure 7] 2A and 2B are explanatory views showing the manufacturing process of the tank support member of the tank truck of FIG. 1, in which (a) is a front view, a right side view, and a left side view of a material frame that will be used as the material for the lower side member, and (b) is a front view, a right side view, and a left side view showing the state in which the lower side frame piece has been cut out from the material frame. [Figure 8] 2A and 2B are explanatory diagrams showing the manufacturing process of the tank support member of the tank truck of FIG. 1, in which (a) is a front view, a right side view, and a left side view of an upper frame piece and a lower frame piece cut out from a material frame, and (b) is a front view, a right side view, and a left side view of the upper frame piece and the lower frame piece cut out from the material frame joined together. [Figure 9] 10A and 10B are explanatory diagrams showing the manufacturing process of a tank support member of another embodiment of the present invention, in which (a) is a front view, right side view, and left side view of an upper frame piece and a lower frame piece cut out from a material frame, and (b) is a front view, right side view, and left side view of the upper frame piece and the lower frame piece cut out from the material frame joined together. [Figure 10]10(a), (b), and (c) are explanatory views showing a manufacturing process of a tank support member for a tank truck according to another embodiment of the present invention. [Figure 11] 10(a), (b), and (c) are cross-sectional views of a tank support member of a tank truck according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0025] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The tank truck 1 of this embodiment is characterized by a support base 10 that supports the tank body 5 and tank support members 20a and 20b. Therefore, each drawing is slightly exaggerated to make the characteristic parts easier to understand.

[0026] The tank truck (tank car) 1 of this embodiment has a tank body 5 mounted on a vehicle body 2, similar to known tank trucks. The vehicle body 2 is equipped with an engine (not shown) and can travel by rotating wheels 6. The vehicle body 2 has a chassis frame 8, and the tank body 5 is mounted on the chassis frame 8 via a support base 10. In this embodiment, the tank body 5 is attached to the vehicle body 2 in a position where the driver's seat 100 side is lower. Note that there may be intervening objects between the chassis frame 8 and the support base 10, or between the support base 10 and the tank body 5, but detailed explanations thereof will be omitted.

[0027] As shown in Figures 3 and 4, the support base 10 has tank support members 20a and 20b arranged in parallel, and the tank support members 20a and 20b are connected by a connecting member 25. Reinforcing members (not shown) are attached to the support base 10 at multiple locations to ensure rigidity. The support base 10 also has auxiliary members (not shown) that firmly hold the tank main body 5. Detailed explanations of these will also be omitted.

[0028] The upper surface of the support base 10 is linearly inclined with respect to the installed state, with the driver's seat 100 side being lower in height and the tail side being higher. The tank support members 20a and 20b directly bear the load of the tank body 5. Since the two tank support members 20a and 20b are symmetrical, only the tank support member 20a shown on the right side of Figures 3 and 4 will be described. The right tank support member 20a is a long member as shown in Figure 5(a), and its overall length is comparable to the load-carrying portion of the chassis frame 8. The tank support member 20a has a forked portion 18 at its tip.

[0029] The cross-sectional shape of the right-side tank support member 20a is as shown in Figure 5(b), and has a tank receiving portion 21 located on the tank body side and supporting the lower part of the tank body 5, a vehicle side portion 22 attached to the vehicle body 2 side, and a vertical wall portion 23 connecting the two. That is, the tank support member 20a has a vertical wall portion 23 that is approximately vertical with respect to the installation posture as a reference, and at the top of the vertical wall portion 23 is the tank receiving portion 21. The tank receiving portion 21 is inclined so that the outer side faces up when assembled into the support base 10. That is, the tank receiving portion 21 is in the shape of a plate that is inclined laterally, and the upper end of the vertical wall portion 23 is connected to the center of the lower surface of the tank receiving portion 21. The vertical wall portion 23 is plate-shaped. The vehicle side portion 22 is in the shape of a long, narrow plate, and one side of the vehicle side portion 22 is connected to the lower end of the vertical wall portion 23. When assembled into the support base 10, the vehicle side portion 22 protrudes inward.

[0030] The right tank support member 20a has a height that changes linearly in the longitudinal direction. In this embodiment, the height of the tank support member 20a decreases toward the driver's seat 100 side. That is, both longitudinal sides of the tank support member 20a are not parallel. Specifically, the upper side 101 formed by the tank receiving portion 21 and the lower side 102 formed by the vehicle side portion 22 are not parallel. If the lower side 102 formed by the vehicle side portion 22 is placed horizontally, the upper side 101 formed by the tank receiving portion 21 forms an inclined straight line with the driver's seat 100 side facing downward. In this embodiment, the overall height of the tank support member 20a is changed by changing the height (vertical width) of the vertical wall portion 23. Therefore, the cross-sectional shape of the tank receiving portion 21 and the cross-sectional shape of the vehicle side portion 22 are the same at any position.

[0031] The left tank support member 20b is symmetrical to the right tank support member 20a described above. That is, the left tank support member 20b has a vertical wall portion 23 that is approximately vertical with respect to the installation posture, and at the top of the vertical wall portion 23 is the tank receiving portion 21. The tank receiving portion 21 is inclined so that the outer side faces up when assembled into the support base 10. That is, the tank receiving portion 21 of the tank support member 20b is inclined in the opposite direction to that of the right tank support member 20a described above. Furthermore, the vehicle side portion 22 of the left tank support member 20b protrudes inward when assembled into the support base 10. In other words, the vehicle side portion 22 of the left tank support member 20b protrudes in the opposite direction to the right tank support member 20a described above.

[0032] The tank support member 20 employed in this embodiment is formed by joining two members by welding or the like, as shown in Fig. 5. That is, the tank support member 20 is formed by joining an upper member 30 and a lower member 31, as shown in Fig. 5. The upper side member 30 has the entire tank receiving portion 21 and a part of the vertical wall portion 23. The lower side member 31 has the entire vehicle side portion 22 and a part of the vertical wall portion 23. The upper side member 30 has an upper side 110 and a lower side 111 that are parallel to each other. On the other hand, the lower side member 31 has an upper side 120 and a lower side 121 that are not parallel to each other.

[0033] Next, a method for manufacturing the tank support member 20 will be described with reference to FIGS. The tank support member 20 is made by cutting out and joining the necessary portions from two material frames 50. The bifurcated portion 18 at the tip is formed by post-processing, and Figures 6 to 8 show the state before the bifurcated portion 18 is processed. In this embodiment, the tank support members 20a and 20b arranged on both sides have different shapes (symmetrical), so the two material frames 50 that serve as the raw materials for the tank support member 20a and the two material frames 50 that serve as the raw materials for the tank support member 20b are symmetrical.

[0034] The material frame 50 is made by extruding aluminum, and as shown in Figures 6(a) and 7(a), has a tank holder 51, vehicle side sections 52, and vertical wall sections 53 connecting the two. That is, the material frame 50 has the tank holder 51 of the material frame 50 itself, the vehicle side sections 52 of the material frame 50 itself, and the vertical wall sections 53 of the material frame 50 itself. As described above, the material frame 50 is made by extruding aluminum, so the cross-sectional shape is the same for all parts. That is, the upper and lower sides of the material frame 50 are parallel. Specifically, the upper side 201 formed by the tank holder 51 of the material frame 50 is parallel to the lower side 202 formed by the vehicle side 52. If the lower side 202 formed by the vehicle side 52 is placed horizontally, the upper side 201 formed by the tank holder 51 of the material frame 50 will also be horizontal.

[0035] In this embodiment, as shown in Fig. 6, the shape of the upper member 30 (excluding the bifurcated portion 18) is cut out from one material frame 50. Specifically, as shown in Fig. 6(a), the vertical wall portion 53 is cut along a straight line 210 parallel to the tank receiving portion 51 of the material frame 50 to obtain an upper frame piece 61. 7, the shape of the lower member 31 (excluding the bifurcated portion 18) is cut out from another material frame 50 of the same shape. Specifically, as shown in FIG. 7(a), the vertical wall portion 53 is cut along a straight line 211 that is inclined relative to the vehicle side portion 52 of the material frame 50 to obtain the lower frame piece 62.

[0036] Then, as shown in FIG. 8, an end face 63 of the vertical wall portion 53 of the upper frame piece 61 and an end face 65 of the vertical wall portion 53 of the lower frame piece 62 are butt-welded. As a result, a work-in-progress 70 of a tank support member whose height changes linearly is completed as shown in Figure 8(b). Thereafter, the tip of the work-in-progress 70 is processed into a bifurcated shape to form the tank support member 20. The manufacturing method of the tank support member 20 can be summarized as follows.

[0037] (Molding process of material frame 50) By extruding aluminum, a material frame 50 is formed, which has a tank receiving portion 51 (21) that is located on the tank body side and supports the tank body 5, a vehicle side portion 52 (22) that is attached to the vehicle body 2, and a vertical wall portion 53 (23) that connects the tank receiving portion 51 (21) and the vehicle side portion 52 (22). The upper side 201 and lower side 202 of the material frame 50 are parallel to each other. (Molding of upper frame piece 61) An upper frame piece 61 is formed by cutting out a portion of the tank receiving portion 51 and the vertical wall portion 53 of one material frame 50. The cut-out upper frame piece 61 has an upper side 220 and a lower side 221 that are parallel to each other, as shown in FIG. 6(b). (Molding of the lower frame piece 62) The lower frame piece 62 is formed by cutting out a portion of the vehicle side portion 52 and the vertical wall portion 53 from the other material frame 50. The cut-out lower frame piece 62 has an upper side 223 and a lower side 225 that are not parallel to each other, as shown in FIG. 7(b). (Joining process) The tank support member work-in-progress 70 is formed by joining the lower side 63 of the upper frame piece 61 and the upper side 65 of the lower frame piece 62. The upper side 230 (101) and the lower side 231 (102) of the tank support member work-in-progress 70 are not parallel to each other. (Tip processing process) The tip of the tank support member work in progress 70 is machined to form the bifurcated portion 18, and the tank support member 20 is molded.

[0038] In the embodiment described above, the upper member 30 has both sides 110 and 111 that are parallel to each other. In contrast, the lower member 31 has an upper side 120 and a lower side 121 that are not parallel to each other. The reason for this configuration is that the structure of the tank receiving portion 21 included in the upper side member 30 has a more complex shape than the vehicle side portion 22 included in the lower side member 31, so a method of cutting the upper side member 30 (upper side frame piece 61) into a parallel shape was adopted. However, the present invention is not limited to this configuration, and the tank support member 20 may be formed by joining an upper frame piece 61 cut out so that the upper edge 220 and the lower edge 221 are non-parallel, as shown in Figure 9(a), and a lower frame piece 62 cut out so that the upper edge 223 and the lower edge 225 are parallel, as shown in Figure 9(b). Furthermore, the upper side 220 and the lower side 221 of the upper frame piece 61 may be non-parallel, and the upper side 223 and the lower side 225 of the lower frame piece 62 may also be non-parallel (not shown).

[0039] As shown in Figure 10(a), the upper edge 220 and lower edge 221 of the upper frame piece 61 may be parallel, and the upper edge 223 and lower edge 225 of the lower frame piece 62 may also be parallel, and the tank receiving portion 21 may be inclined by overlapping portions of the vertical wall portions 53 of both pieces in the thickness direction.

[0040] 10(b) and 10(c), a wide material frame 50 may be extruded, and an upper frame piece 61 and a lower frame piece 62 may be cut out from one material frame 50. FIG. 10(b) shows an example in which an upper frame piece 61 having parallel upper and lower edges 220 and 221 and a lower frame piece 62 having non-parallel upper and lower edges 223 and 225 are cut out from one material frame 50 and joined together. FIG. 10(c) shows an example in which an upper frame piece 61 having non-parallel upper and lower edges 220 and 221 and a lower frame piece 62 having parallel upper and lower edges 223 and 225 are cut out from one material frame 50 and joined together. Although not shown, an upper frame piece 61 having non-parallel upper and lower edges 220 and 221 and a lower frame piece 62 having non-parallel upper and lower edges 223 and 225 may also be cut out and joined together. By cutting out the upper frame piece 61 and the lower frame piece 62 from one material frame 50 and joining them together, little material is wasted.

[0041] In the tank truck 1 described above, the tank body 5 is attached to the vehicle body 2 in a position where the driver's seat 100 side is lower, but the present invention is not limited to this configuration, and the tank body 5 may also be attached to the vehicle body 2 in a position where the tail side is lower. When this configuration is employed, the tank support members 20a, 20b used have a height that decreases as they move further rearward.

[0042] In the embodiment described above, the end face 63 of the vertical wall portion 53 of the upper frame piece 61 and the end face 65 of the vertical wall portion 53 of the lower frame piece 62 are joined by butt welding. The welding method is not limited, and any known welding method can be used. For example, fusion welding such as gas welding and arc welding, pressure welding such as resistance welding and ultrasonic welding, and brazing welding such as brazing can be used. As mentioned above, the welding method is not limited, but friction welding is preferable. Alternatively, the end face 63 of the vertical wall portion 53 of the upper frame piece 61 and the end face 65 of the vertical wall portion 53 of the lower frame piece 62 may be butt-welded by TIG welding. Of course, a backing plate may be attached to the vertical wall portion 53 of the upper frame piece 61 and the vertical wall portion 53 of the lower frame piece 62, and the upper frame piece 61 and the lower frame piece 62 may be joined via the backing plate.

[0043] The upper frame piece 61 and the lower frame piece 62 may also be joined by a fastening element. For example, screws or rivets may be used to join the upper frame piece 61 and the lower frame piece 62. Fastening elements such as adhesive or double-sided tape may also be used. Figure 11(a) shows an example in which an upper frame piece 61 and a lower frame piece 62 are fastened together with a bolt 81 via a backing plate 80. Figure 11(b) shows an example in which a bolt 81 is passed through between the vertical wall portion 53 of the upper frame piece 61 and the vertical wall portion 53 of the lower frame piece 62 to join them. Figure 11(c) shows an example in which mating portions 83, 85 are created by bending the lower end of the upper frame piece 61 and the upper end of the lower frame piece 62, and the mating portions 83, 85 are brought into alignment to join them with a bolt 81 passed through between them. [Explanation of symbols]

[0044] 1: Tank truck, 2: Vehicle body, 5: Tank body, 8: Chassis frame, 10: support base, 20a, 20b: tank support member, 21: tank receiving portion, 22: Vehicle side portion, 23: Vertical wall portion, 30: Upper side member, 31: Lower side member, 50: Material frame, 51: Tank receiving portion, 52: Vehicle side portion, 53: Vertical wall portion, 61: Upper frame piece, 62: Lower frame piece, 63: End face, 65: End face 120: top edge, 121: bottom edge, 201: top edge, 202: bottom edge, 220: top edge, 221: bottom edge, 223: top edge, 225: bottom edge, 230: top edge, 231: bottom edge,

Claims

1. A tank car having a vehicle body, a tank body, and a tank support member, wherein the tank body is installed in an inclined position on the vehicle body via one or more of the tank support members, the tank support member has a tank receiving portion that is located on the tank main body side and supports the tank main body, a vehicle side portion that is attached to the vehicle main body side, and a vertical wall portion that connects the tank receiving portion and the vehicle side portion, The tank support member is a tank car characterized in that an upper side member including the tank receiving portion and part or all of the vertical wall portion is joined to a lower side member including the vehicle side portion and part or all of the vertical wall portion.

2. 2. The tank car according to claim 1, wherein the tank receiving portion is inclined relative to the side of the car.

3. 2. The tank car according to claim 1, wherein at least one of the upper side member and the lower side member has sides that are arranged vertically with respect to the installation posture being non-parallel.

4. The tank car described in claim 1, characterized in that one of the upper side member and the lower side member has sides that are non-parallel to each other and that are positioned above and below the installation position, and the other of the upper side member and the lower side member has sides that are parallel to each other and that are positioned above and below the installation position.

5. A tank support member that is a component of a tank car and is interposed between the vehicle body and the tank body, The tank has a tank receiving portion that is located on the tank body side and supports the tank body, a vehicle side portion that is attached to the vehicle body side, and a vertical wall portion that connects the tank receiving portion and the vehicle side portion, The tank support member is formed by joining an upper side member including a tank receiving portion and a part or all of a vertical wall portion, and a lower side member including a vehicle side portion and a part or all of a vertical wall portion, A tank support member characterized in that the tank receiving portion is inclined with respect to the side of the vehicle.

6. The upper side member is formed by cutting out a portion of the tank receiving portion and the vertical wall portion from a material frame having a tank receiving portion, a vehicle side portion attached to the vehicle body, and a vertical wall portion connecting the tank receiving portion and the vehicle side portion, The tank support member according to claim 5, characterized in that the lower side member is formed by cutting out a portion of the vehicle side portion and the vertical wall portion from a material frame having a tank receiving portion, a vehicle side portion attached to the vehicle main body, and a vertical wall portion connecting the tank receiving portion and the vehicle side portion.

7. A method for manufacturing a tank support member that is a component of a tank car and is interposed between a vehicle body and a tank body, comprising: a step of molding a material frame having a tank receiving portion that is located on the tank body side and supports the tank body, a vehicle side portion that is attached to the vehicle body side, and a vertical wall portion that connects the tank receiving portion and the vehicle side portion; a step of cutting out a tank receiving portion and a portion of a vertical wall portion from a single material frame to form an upper frame piece; a step of cutting out a portion of the vehicle side portion and the vertical wall portion from another material frame to form a lower frame piece; A method for manufacturing a tank support member, comprising the step of joining the upper frame piece and the lower frame piece.

8. A method for manufacturing a tank support member as described in claim 7, characterized in that at least one of the upper frame piece and the lower frame piece is molded so that the sides positioned above and below are non-parallel based on the installation posture.

Images