JP7306517B1 - freight vehicle bed - Google Patents

Abstract

To provide a loading platform for a freight vehicle, which has a structure in which a torii can be provided on the loading platform even when the front end of the loading platform is provided below an expansion space behind the seat of a cab. A loading space 13 is formed between a seat 11 and an upper rear surface 9a of the cab 8 above the loading platform 1 by providing an upper rear surface 9a above the loading platform 1 of the rear surface 9 of the cab 8 behind a lower rear surface 9b. A box part 23, which is the front end of the loading platform 1, is closed by a top plate 23e, the rear surface of which is open, is connected to the front surface of the loading platform body 21, and is arranged in a lower space 15 formed below the expansion space 13; [Selection drawing] Fig. 1

Description

The present disclosure relates to cargo vehicle beds.

Cargo vehicles such as trucks have the back of the cab behind the last seat in the cab, which is the driver's cab. An expansion space may be provided in between. If the expansion space is provided and the total length of the vehicle is not changed, the total length of the cargo bed provided behind the cab is shorter than when the expansion space is not provided, and the load capacity of the cargo is reduced. If the total length of the loading platform is not changed, the total length of the vehicle will be longer.

Therefore, even if an expansion space is provided behind the seat at the rear end of the cab, the expansion space is provided only above the cargo bed in the cab so as not to reduce the cargo load as much as possible and to keep the overall length of the vehicle unchanged. There is a structure in which the front end of the loading platform is arranged in the space generated below (Patent Document 1).
(Patent Document 1).

JP-A-2000-318648

A known freight vehicle has a gate-shaped structure called a torii that protects the back of the cab so that the loaded cargo does not come into contact with the back of the cab and damage the cab. It is erected at the upper end of the shaped member and covers the back of the cab.

However, in the structure of Patent Document 1, the front end of the loading platform is provided below the expansion space, and the expansion space is above the header board, so there is a problem that the torii cannot be provided on the header board.

SUMMARY OF THE INVENTION The present disclosure has been made in view of the above problems, and aims to provide a loading platform for a cargo vehicle, which has a structure that allows a torii to be provided on the loading platform even when the front end of the loading platform is provided below the expansion space behind the seat of the cab. and

One aspect of the present disclosure for achieving the above object includes a cab that is an operator's cab equipped with a seat, and a box-shaped cargo bed provided behind the cab, and above the cargo bed on the back of the cab. is provided rearwardly of the lower portion to form an expansion space between the seat and the back of the cab above the cargo bed, the top and front sides being open A box-shaped loading platform body and a box-shaped configuration in which the top surface is closed with a top plate and the back surface is open and connected to the front surface of the loading platform body, and is arranged in the space formed below the expansion space. a box portion that is the front end of the cargo bed; and a torii that is a gate-shaped structure that is erected upward from the rear end of the top plate of the box portion and protects the cab from the cargo loaded on the cargo bed main body. , is provided.

Advantageous Effects of Invention According to the present disclosure, it is possible to provide a loading platform for a cargo vehicle having a structure in which a torii can be provided on the loading platform even when the front end of the loading platform is provided below the expansion space behind the seat of the cab.

1 is a side view of a freight vehicle with a bed according to an embodiment of the present disclosure; FIG. (a) is a perspective view of the loading platform of FIG. 1, and (b) is a perspective view of the box portion of (a) viewed from direction A. FIG. FIG. 3 is a perspective view of the vicinity of the connecting structure of FIG. 2, and the hatched portion is a cross-sectional view. (a) is a side sectional view of the connection structure of FIG. 2, and (b) is a side view of the connection structure of FIG. 2 and an exploded view.

Hereinafter, embodiments suitable for the present disclosure will be described in detail with reference to the drawings. Here, a flat-body type cargo bed mounted on a truck 100 is exemplified as the cargo bed 1 of the freight vehicle. In the following figures, the X direction is the longitudinal direction of the vehicle, the Y direction is the width direction of the vehicle, and the Z direction is the vertical direction.

First, the outline of the structure of the track 100 will be described with reference to FIG. Truck 100 shown in FIG. The chassis 3 is a structure that supports members and devices that make up the truck 100, and can be exemplified by a structure in which an internal combustion engine, a drive mechanism, a steering mechanism, and the like are attached to a ladder frame or the like. The front wheels 5 and rear wheels 7 are circular parts that move the truck 100 by frictional force with the road surface generated by rotation. , the rear wheels 7 are attached to the drive mechanism and serve as drive wheels.

The cab 8 is the driver's cab of the truck 100 and has a seat 11 on which the driver or passenger sits. FIG. 1 illustrates a structure in which only two seats 11 are provided in the cab 8: a driver's seat and, if necessary, a passenger's seat provided next to the driver's seat in the vehicle width direction. Therefore, the seat 11 is the rearmost seat in the cab 8, there is no rear seat behind the seat 11, and the back 9 of the cab 8 is provided.

The cargo bed 1 is a box-shaped platform on which cargo is loaded, and a flat body type cargo bed 1 is exemplified here. The flat body type means a structure in which the floor is flat and surrounded by a wall-shaped fence called a tilt.

In the truck 100 shown in FIG. 1, an upper rear surface 9a, which is a portion above the loading platform 1, of the rear surface 9 of the cab 8 is provided behind a lower rear surface 9b, which is a portion below the loading platform 1. As shown in FIG. As a result, a space called an expansion space 13 is formed between the seat 11 and the upper back surface 9a. The expansion space 13 is provided for the purpose of tilting the backrest of the seat 11 rearward around the lower end, that is, increasing the tilting angle when reclining, and for the purpose of securing luggage storage space and sleeping space for the driver and fellow passengers. be provided.

The cab 8 provided with the expansion space 13 in this way is also called a space cab. In the space cab, the lower side of the expansion space 13 is the outside of the cab 8. - 特許庁Thus, in the space cab, the space behind the lower back surface 9b and outside the cab 8 below the expansion space 13 is referred to as a lower space 15 in the following description. The outline of the structure of the track 100 has been described above.

Next, the details of the structure of the bed 1 of the truck 100 will be described with reference to FIGS. 1 to 4. FIG. As shown in FIG. 2, the loading platform 1 includes a loading platform main body 21, a box portion 23, and a torii gate 25. As shown in FIG. The cargo bed 1 also comprises a support structure 31 .

The loading platform body 21 is the rear end portion of the loading platform 1, and has an external shape similar to that of a flat body type loading platform. It has an enclosed structure.

The floor plate 21a is a rectangular member in a plan view that serves as a mounting surface for cargo to be mounted on the truck 100, and extends in the front-rear direction and the vehicle width direction. The width of the floor plate 21a in the vehicle width direction is about the same as that of the cab 8, and the width in the front-rear direction is about the total length of the vehicle minus the length of the cab 8 in the front-rear direction. The length of the cab 8 in the front-rear direction here is the length between the front end of the cab 8 and the upper rear surface 9a shown in FIG. The thickness of the floor plate 21a in the Z direction is such that it does not deform under the load of the loaded cargo.

The right side wall portion 21b and the left side wall portion 21c shown in FIG. 2 are rectangular fences in a side view, which are erected from the right end and left end of the floor plate 21a, respectively. Since the right and left ends of the floor plate 21a are along the longitudinal direction of the vehicle, the longitudinal direction of the rectangles of the right side wall portion 21b and the left side wall portion 21c is also along the longitudinal direction of the vehicle, and the length of the floor plate 21a in the longitudinal direction is It is about the same as the length in the front-rear direction. Although the length in the Z direction, which is the vertical direction, is determined according to the height of the cargo to be loaded, generally the height of the upper end is less than the height of the upper end of the cab 8 . The thickness in the Y direction, which is the width direction of the vehicle, is such that it does not deform even if it is pushed by cargo when it is loaded. The rear wall portion 21d is a rectangular fence erected from the rear end of the floor plate 21a when viewed from the rear. Since the rear end of the floor plate 21a is along the width direction of the vehicle, the longitudinal direction of the rear wall portion 21d is also along the width direction of the vehicle, and the length in the width direction of the vehicle is the same as the length in the width direction of the floor plate 21a. degree. The length in the Z direction of the rear wall portion 21d is approximately the same as the length in the Z direction of the right side wall portion 21b and the left side wall portion 21c. The thickness of the rear wall portion 21d in the front-rear direction is such that it will not be deformed even if it is pushed by cargo when loaded. In this way, the body 21 of the loading platform is surrounded by the left, right, and rear sides of the floor plate 21a, but the upper surface and the front surface are open.

The box portion 23 is a box-shaped portion constituting the front end of the loading platform 1, and is connected to the front surface of the loading platform main body 21 with its upper surface closed by a top plate 23e and its rear surface opened. Further, the box portion 23 is arranged in a lower space 15 formed at least partially below the expansion space 13 as shown in FIG.

2, the box portion 23 includes a box portion floor plate 23a, a header board 23d, a box portion right side plate 23b, a box portion left side plate 23c, and a top plate 23e. .

The box floor plate 23a, like the floor plate 21a, is a rectangular plate-like portion in a plan view that serves as an installation surface for cargo to be mounted on the loading platform 1, and extends in the horizontal direction. The rear end of the box floor plate 23a is connected to the front end of the floor plate 21a. The length of the box section floor plate 23a in the front-rear direction is slightly longer than the length of the lower space 15 in the front-rear direction. The length of the box floor plate 23a in the vehicle width direction is approximately the same as the length of the floor plate 21a in the vehicle width direction. The Z-direction thickness of the box floor plate 23a is also about the same as the Z-direction thickness of the floor plate 21a.

The header board 23d is a rectangular plate-like member that constitutes the front surface of the box portion 23 when viewed from the front, and is erected from the front end of the box portion floor plate 23a. Since the front end of the box floor plate 23a extends along the vehicle width direction, the longitudinal direction of the header board 23d also extends along the vehicle width direction. The length of the header board 23d in the vehicle width direction is approximately the same as the length of the box floor plate 23a in the vehicle width direction. The height of the header board 23 d in the Z direction is such that the upper end of the header board 23 d does not contact the lower surface of the expansion space 13 of the cab 8 forming the upper surface of the lower space 15 . The thickness of the header board 23d in the front-rear direction is such that it will not be deformed even if it is pushed by cargo when loaded.

The box portion right side plate 23b and the box portion left side plate 23c are rectangular wall bodies in a side view that stand upright from the right end and the left end of the box portion floor plate 23a, respectively. The box portion right side plate 23b and the box portion left side plate 23c are connected at their front ends to the right and left ends of the header board 23d, respectively, and connected to the outer frame 27 of the torii gate 25 at their rear ends. The lengths in the front-rear direction of the box portion right side plate 23b and the box portion left side plate 23c are approximately the same as the lengths in the front-rear direction of the box portion floor plate 23a. The thickness of the right side plate 23b and the left side plate 23c of the box portion in the vehicle width direction is such that they are not deformed even if they are pushed by the cargo when loaded. The height in the Z direction of the box portion right side plate 23b and the box portion left side plate 23c is approximately the same as the height in the Z direction of the header board 23d.

The top plate 23e is a rectangular ceiling in plan view that forms the upper surface of the box portion 23, and the longitudinal direction of the top plate 23e extends along the vehicle width direction. The length of the top plate 23e in the vehicle width direction is about the same as the length of the box portion floor plate 23a in the vehicle width direction, and the length in the front-rear direction is about the same as the length of the box portion floor plate 23a in the front-rear direction. The thickness of the top plate 23 e in the Z direction is enough to support the torii gate 25 . In addition, the portion of the box portion 23 that is arranged in the lower space 15 must have a height such that the upper surface of the top plate 23e does not come into contact with the lower surface of the expansion space 13 of the cab 8 that constitutes the upper surface of the lower space 15. There is

The front end of the top plate 23e is connected to the upper end of the header board 23d. The right and left ends of the top plate 23e are connected to the upper ends of the box portion right side plate 23b and the box portion left side plate 23c. Thus, the box portion 23 has a box-like shape with an open rear side.

The torii 25 is a gate-shaped structure that protects the cab 8 from cargo loaded on the loading platform body 21 . Specifically, the torii gate 25 is a structure that covers the rear surface 9 of the cab 8 from the outside in order to prevent the cargo loaded on the loading platform body 21 from coming into contact with the cab 8. It is erected upward from the

As shown in FIG. 2, the torii gate 25 comprises an outer frame 27 and inner struts 29 .

The outer frame 27 is a frame body that forms the outer peripheral portion of the torii gate 25, and has a U-shaped upside down shape when viewed from the front. Both ends of the U-shape are supported by the top plate 23 e of the box portion 23 . In FIG. 2, it is also connected to and supported by the box portion right side plate 23b, the box portion left side plate 23c, the box portion floor plate 23a, and the floor plate 21a of the cargo bed main body 21. As shown in FIG.

The inner strut 29 is a pillar that closes the inner side of the outer frame 27 and reinforces the outer frame 27 in order to prevent the cargo loaded on the loading platform body 21 from contacting the back surface 9 of the cab 8 from the inner side of the outer frame 27. - 特許庁The inner pillar 29 is erected upward from the rear end of the top plate 23 e , and the upper end is connected to the lower surface of the outer frame 27 . A plurality of inner struts 29 are provided inside the outer frame 27 at predetermined intervals in the vehicle width direction. The number of inner struts 29 is such that the distance between adjacent inner struts 29 in the vehicle width direction and the distance between the rightmost and leftmost inner struts 29 and the outer frame 27 in the vehicle width direction correspond to the number of cargoes to be loaded on the loading platform body 21. A number that is less than the maximum horizontal width of the is preferred. This is to prevent cargo from contacting the rear surface 9 of the cab 8 from between the adjacent inner struts 29 . Moreover, it is preferable that the number of wires is necessary to reinforce the outer frame 27 .

In this way, the cargo bed 1 is provided with the box portion 23 in the lower space 15, which is a space below the expansion space 13 of the cab 8, to extend the cargo bed 1, so that even if the cab 8 is provided with the expansion space 13, the truck 100 can still be used. To prevent the cargo space on the plane of a loading platform 1 from being reduced as much as possible without increasing the total length. Furthermore, by supporting the torii gate 25 on the top plate 23e of the box part 23, a surface for supporting the torii gate 25 is secured.

Therefore, even when the front end of the loading platform 1 is provided in the lower space 15 which is the space below the expansion space 13 behind the seat 11 of the cab 8, the loading platform 1 is provided with the torii gate 25. - 特許庁Further, by providing the top plate 23e on the upper surface of the box portion 23, there is an advantage that rainwater does not easily enter the inside of the box portion 23 even though the cargo bed 1 is of a flat body type.

The support structure 31 is a member that vertically connects the top plate 23e of the box portion 23 and the inner support 29 of the torii gate 25 to support the inner support 29, and is provided as necessary. The support structure 31 comprises an upper member 35 and a lower member 37, as shown in FIGS.

The upper member 35 is a member that connects the top plate 23e of the box portion 23 and the inner support 29 of the torii gate 25, and FIG. are doing. The term "angle member" as used herein means a member having an outer shape obtained by bending a long plate into an L shape with a line along the longitudinal direction being a crease.

As shown in FIGS. 3 and 4, the upper member 35 has an upper member horizontal portion 51, which is one linear portion forming an L shape, facing in the horizontal direction. The front end 51a of the upper member horizontal portion 51, which is one straight portion, faces the header board 23d at the front end of the box portion 23. As shown in FIG. The upper surface of the upper member horizontal portion 51 is connected to the lower end of the inner support 29 of the torii gate 25 by known connecting means such as welding. The upper member 35 has an upper member vertical portion 55 , which is the other straight portion forming an L shape, facing vertically and projecting downward from the rear end of the upper member horizontal portion 51 . Further, as shown in FIG. 4, an upper member through-hole 57 extends through the lower end of the upper member vertical portion 55 in the front-rear direction. On the other hand, the top plate 23e of the box portion 23 has a plate-like top plate side connection portion 33 that protrudes upward from the rear end and has a surface direction facing the vehicle width direction and the vertical direction.

In this configuration, a headed bolt 41 is inserted through the upper member through-hole 57 and through-holes (not shown) of the top plate side connection portion 33, and a nut 43 is screwed onto the bolt 41, so that the bolt head and the nut 43 connect the vertical portion of the upper member. 55 and the top plate side connecting portion 33 are sandwiched. Thereby, the lower end of the upper member 35 is connected to the box portion 23 , and the upper member 35 connects the top plate 23 e of the box portion 23 and the inner support 29 of the torii gate 25 .

The lower member 37 is disposed inside the L-shaped bent upper member 35, and the upper member horizontal portion 51, which is one of the straight portions of the upper member 35, and the upper member vertical portion 55, which is the other straight portion of the upper member 35, are aligned with each other. It is a member that receives the load of the torii gate 25 by connecting and reinforcing it. The inner side of the L-shaped bend means the smaller of the two angles of the L-shaped bend in side view. For example, in FIG. 4, the angles of the bent portion of the L-shape are 90° and 270°, and the inner side means the side where the angle is 90°.

Specifically, the lower member 37 includes a reinforcing portion 61 and a lower member connecting portion 63 . The reinforcing portion 61 is a member that connects and reinforces the L-shaped inner sides of the upper member vertical portion 55, and as shown in FIG. It has an outer shape extending in the vehicle width direction. Digital numerals here means Arabic numerals displayed on a 7-segment display. A 7-segment display is also called a date character display.

Specifically, the uppermost horizontal portion 61a of the reinforcing portion 61 faces the horizontal direction and extends in the vehicle width direction. The part 51 is supported. A lower first vertical portion 61b projecting vertically downward from the rear end of the uppermost horizontal portion 61a is in contact with the front surface of the upper member vertical portion 55 of the upper member 35, and is a joint portion by spot welding. It is joined at the portion 67 . As a result, the uppermost horizontal portion 61a and the lower first vertical portion 61b connect and support the inner sides of the upper member horizontal portion 51 and the upper member vertical portion 55 of the upper member 35 .

Further, the reinforcing portion 61 includes a lower first horizontal portion 61c projecting horizontally forward from the lower end of the lower first vertical portion 61b, and a lower horizontal portion 61c projecting from the front end of the lower first horizontal portion 61c to the lower end in the vertical direction. A side second vertical portion 61d is provided. The reinforcing portion 61 also includes a second lower horizontal portion 61e projecting rearward in the horizontal direction from the lower end of the second lower vertical portion 61d. The lower first vertical portion 61b, the lower first horizontal portion 61c, the lower second vertical portion 61d, and the lower second horizontal portion 61e also extend in the vehicle width direction.

The lower member connection portion 63 is a member that connects the lower member 37 to the upper member 35 and the top plate side connection portion 33, and is a right side portion of the reinforcement portion 61 in a shape obtained by horizontally reversing the letter "2" or the letter "S". The member protrudes downward from the lower end, that is, the rear end of the lower second horizontal portion 61e and extends in the vehicle width direction. A lower member through-hole 65 is formed through the lower member connecting portion 63 in the front-rear direction.

As shown in FIG. 4A , the lower member connecting portion 63 is sandwiched between the inner side of the upper member vertical portion 55 of the upper member 35 and the rear surface of the top plate side connecting portion 33 . In this state, the bolt 41 is inserted through the upper member through hole 57 , the through hole (not shown) of the top board side connection portion 33 , and the lower member through hole 65 . Furthermore, the lower member connection portion 63 is fixed to the upper member 35 and the top plate 23e by screwing the nut 43 onto the tip of the bolt 41 and fastening it. Therefore, the lower end of the lower member connecting portion 63 is fixed to the top plate 23 e and the upper member vertical portion 55 , and the reinforcing portion 61 and the lower member connecting portion 63 connect the inner sides of the upper member horizontal portion 51 and the upper member vertical portion 55 . and support.

In this manner, the cargo bed 1 may be constructed such that the top plate 23 e of the box portion 23 supports the inner support 29 of the torii gate 25 via the support structure 31 . With this configuration, even when the inner support 29 of the torii gate 25 is provided on the upper surface of a plate whose lower part is not supported like the top plate 23e, the inner support 29 of the torii gate 25 can be supported without the top plate 23e buckling.

Also, in this configuration, the upper member 35 of the support structure 31 connects the top plate 23e and the inner support 29 of the torii gate 25, and the lower member 37 reinforces the upper member 35 from the inside to prevent buckling. Therefore, the top plate 23e and the torii gate 25 can be connected directly to each other, or when the top plate 23e and the inner post 29 of the torii gate 25 are connected only by the upper member 35. The strength of the connection portion of 25 with the inner strut 29 can be improved.

Furthermore, in this configuration, the reinforcing portion 61 of the lower member 37 has an external shape in which a flat plate is bent into a digital number “2” shape or a left-right reversed shape of an S shape when viewed from the side. Buckling is prevented by the reinforcing portion 61 receiving the load of the inner support 29 .

With this structure, the lower member 37 can be made lighter and stronger than the case where the lower member 37 is a flat plate such as the header board 23d. Therefore, even when the inner pillars 29 of the torii gate 25 are supported by a member such as the top plate 23e that is not directly supported by the floor plate 21a of the loading platform 1 or the box portion floor plate 23a of the box portion 23, the weight of the support structure 31 is sufficient. Buckling of the top plate 23e can be prevented.

As described above, the cargo bed 1 has a cargo bed main body 21 whose upper surface and front surface are open, and a box portion 23 whose upper surface is closed with a top plate 23e and whose rear surface is opened and which is connected to the front surface of the cargo bed main body 21 and arranged in the lower space 15. and a torii gate 25 erected upward from the rear end of the top plate 23 e of the box portion 23 .

In this configuration, the cargo bed 1 is provided with a box portion 23 in the lower space 15 below the expansion space 13 of the cab 8 to extend the cargo bed 1, so that even if the expansion space 13 is provided in the cab 8, the entire length of the truck 100 can be maintained. To prevent the cargo space on the plane of the loading platform 1 from being reduced as much as possible without lengthening it. Furthermore, by supporting the torii gate 25 on the top plate 23e of the box part 23, a surface for supporting the torii gate 25 is secured.

Therefore, even when the front end of the loading platform 1 is provided in the lower space 15 which is the space below the expansion space 13 behind the seat 11 of the cab 8, the loading platform 1 is provided with the torii gate 25. - 特許庁

Although the present disclosure has been described above based on the embodiments, the present disclosure is not limited to the embodiments. It is a matter of course that a person skilled in the art can come up with various modifications and improvements within the scope of the technical idea of the present disclosure, and these are naturally included in the present disclosure.

1 : Cargo bed 3 : Chassis 5 : Front wheels 7 : Rear wheels 8 : Cab 9 : Rear face 9 a : Upper back face 9 b : Lower back face 11 : Seat 13 : Expansion space 15 : Lower space 21 : Cargo bed body 21 a : Floor plate 21 b : Right side wall 21c: left wall portion 21d: rear wall portion 23: box portion 23a: box portion floor plate 23b: box portion right side plate 23c: box portion left side plate 23d: header board 23e: top plate 25: torii gate 27: outer frame 29: inner support column 31 : Support structure 33 : Top plate side connection portion 35 : Upper member 37 : Lower member 41 : Bolt 43 : Nut 51 : Upper member horizontal portion 51a : Front end 55 : Upper member vertical portion 57 : Upper member through hole 61 : Reinforcement Part 61a: Uppermost horizontal part 61b: Lower first vertical part 61c: Lower first horizontal part 61d: Lower second vertical part 61e: Lower second horizontal part 63: Lower member connecting part 65: Lower side Member through hole 67 : spot welded portion 100 : track

Claims (4)

A cab, which is an operator's cab with a seat, and a box-shaped cargo bed provided behind the cab, wherein the portion above the cargo bed on the back of the cab is provided behind the lower portion, and the seat and , a loading platform for a freight vehicle in which an expansion space is formed between the rear surface of the cab above the loading platform,
A box-shaped carrier body with an open top and front,
A box which is the front end of the cargo bed and which is arranged in a space formed below the expansion space and which has a box-like shape with an upper surface closed with a top plate and a back open and connected to the front surface of the cargo bed body. Department and
a torii, which is a gate-shaped structure erected upward from the rear end of the top plate of the box portion and protects the cab from the cargo mounted on the loading platform main body;
A loading platform for a freight vehicle, comprising: 2. The cargo bed of a freight vehicle according to claim 1, further comprising a support structure provided between said top plate and said torii, connecting said top plate and said torii vertically to support said torii. The top plate of the box portion has a plate-like top plate side connection portion projecting upward from the rear end and having a surface direction facing the vehicle width direction and the vertical direction,
The support structure includes:
An angle member extending in the vehicle width direction in an L shape when viewed from the vehicle width direction, one of the straight portions forming the L shape faces the horizontal direction, and the front end of the one straight portion extends from the box portion. Facing the front end, the upper surface is connected to the torii, the other straight portion faces the vertical direction and protrudes downward from the rear end of the one straight portion, and the lower end of the other straight portion is the top plate side an upper member connected to the connection;
a lower member disposed inside the L-shaped bent portion of the upper member and receiving the load of the torii gate by connecting and reinforcing the inner sides of the one straight portion and the other straight portion of the upper member; 3. A freight vehicle bed according to claim 2. The lower member includes a reinforcing portion extending in the vehicle width direction in the shape of a digital number "2" when viewed from the side, and a reinforcing portion protruding downward from the lower right end of the "2" in the vehicle width direction. a lower member connecting portion extending in a direction and connected to the top plate side connecting portion and the lower end of the upper member;
4. The cargo vehicle bed of claim 3, comprising:

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