JP2001097249A - Cargo compartment of motor truck and motor truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the weight of a cargo compartment without impairing the function, strength and rigidity of the cargo compartment of a motor truck. SOLUTION: A floor panel 3 is formed by a floor body 20 at least containing FRP material, and at least two metallic main sills 21 provided under the floor plate and extended in the longitudinal direction of the motor truck. Wing panels 8 are integrated FRP-made panels having an L-shaped section, the ceiling part is provided with a wing panel opening and closing metal member, and at least a side panel is formed as a sandwich structure, whereby the function of an inside panel is also taken in the wing panel to reduce the weight.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cargo hold of a truck using FRP panels, and more particularly to a lightweight FRP.
The present invention relates to a cargo compartment of a truck that achieves desired rigidity and strength while improving the assemblability while reducing the weight of the entire cargo compartment by using panels made of the cargo compartment, and a truck provided with the cargo compartment.

[0002]

2. Description of the Related Art FIG. 6 is a schematic perspective view of a truck having a cargo compartment of a conventional truck, and FIG. 7 is a schematic plan view of the truck before mounting the cargo compartment of the truck.

In FIG. 6, a cargo hold 2 of a truck 1 has
A floor panel 3, a front section frame (front section structure) 4 and a front panel 5 provided on the front side of the floor panel 3, and a rear section frame (rear section structure) provided on the rear side of the floor panel 3. 6) and a door panel 7 as a rear panel, a wing panel 8 which forms a ceiling portion and an upper portion of a side of the cargo compartment 2 and can be flipped upward on both sides.
A lower part of the side of the cargo compartment 2 is formed, and a swing panel 9 that can be opened and closed downward on both sides is provided. The wing panel 8 is rotated about a center beam 11 and is opened and closed by, for example, a hydraulic cylinder 10. The cargo compartment having such a structure is referred to as a wing-structure cargo compartment.

[0004] Such a cargo compartment 2 is mounted on, for example, two parallel extending body chassis 13 extending rearward of a driver's seat 12 as shown in FIG.

[0005] More specifically, the floor panel 3 is composed of a combination of a vertical joist and a horizontal joist made of a metal mold in an open shape, and a wooden, for example, a floor plate made of, for example, Apithon material. It is formed by attaching side rails using metal mold materials to both sides of the side.

The wing panel 8 is made of an aluminum material or the like, and is formed into an L-shape in which the side surface and a half of the ceiling surface are combined. Then, an aluminum plate or FRP is formed on the surface corresponding to the outer surface.
A plywood board called an inner lining board is attached to the inner surface so that the load does not directly hit the outer plate and does not get caught by the aluminum material when the load is carried in.

In recent years, it has been desired to increase the load weight in order to reduce transportation costs. However, in a conventional cargo room using metal material or wood, the weight increases in order to obtain predetermined strength and rigidity. As a result, there is a limit to the improvement of the loading weight. In addition, steel and aluminum materials may cause problems in weather resistance and corrosion resistance.

[0008] Under such circumstances, for example, as disclosed in Japanese Patent Application Laid-Open No. 9-202145, FR
Truck panels and cargo bays using P have begun to be partially used.

In this proposal, as shown in FIG. 8, the floor panel has an FRP panel 15 containing a reinforced fiber fabric as a main rigid member, and a vertical joist 16 on the back surface.
A proposal has been made in which the a and the horizontal joist 16b are integrally formed, and the vertical and horizontal joists are formed as stiffeners made of FRP.

Further, as shown in FIG. 9, the wing panel 8 is made of FR containing a woven fabric of reinforcing fibers as a main rigid member.
A P-plate 17 is provided, and an FRP stiffener 18 is connected to the inside of the P-plate 17 to reinforce the FRP plate. Further, as shown in FIG. 10, there has been proposed a case in which a lining plate 19a is connected to the inside of the stiffener 18 with a rivet 19b or the like.

[0011]

The first problem is in the structure of the floor panel.

[0012] In the currently proposed FRP floor panel in which the vertical joist and the horizontal joist are integrally formed, the vertical joist, which is a fastening portion to the chassis or the front and rear frames, has a higher dimensional accuracy than a conventional metal mold. It was very difficult to produce such a material, and a large amount of correction processing or large-scale and expensive equipment was required.

Further, it is necessary to install a metal member, a wooden core, and the like used for fastening inside the FRP at a fastening portion of the FRP vertical joist to the chassis, but the type of the chassis changes and the fastening position changes. Each time, it was necessary to change the arrangement of metal members and wooden cores inside the vertical joists, and it was difficult to respond to changes in the chassis. Further, it is conceivable to dispose the metal member or the wooden core over the entire length of the vertical joist, but the original purpose of reducing the weight is not achieved.

Further, the floor panel has an FRP plate containing a reinforced fiber fabric as a main rigid member, and a vertical joist and a horizontal joist are integrally formed on the back surface, and the vertical joist and the horizontal joist are made of FRP. Since it is formed as a stiffener, the cross-sectional shape is complicated, and in the production of floor panels, a large amount of cost is required for molding, processing, and correction, and an increase in production cost is a problem.

A second problem is to further reduce the weight of the cargo compartment of the truck.

Recently, in the field of medium-sized wing trucks (total weight of 8 tons), the maximum loading capacity is limited to about 3.8 tons even in a truck using light aluminum or the like as much as possible. However, to reduce transportation costs,
Practical specifications, further weight reduction of the cargo compartment, a target loading capacity of 4 tons were desired, and a weight reduction of 200 kg or more was required. For this reason, it was necessary to further reduce the weight without reducing the strength and rigidity.

[0017]

In order to solve the first problem, a cargo compartment of a truck according to the present invention comprises a cargo compartment of a truck having at least a floor panel, wherein the floor panel includes at least a floor material containing FRP material. And a body and at least two vertical metal joists provided below the floor plate and extending in the front-rear direction of the truck.

In order to solve the second problem, the cargo compartment of the truck according to the present invention is characterized in that the weight of the floor panel per loadable area is 12 kg / m ² or more and 30 kg / m ² or less. Is what you do.

The cargo compartment of the truck according to the present invention comprises at least a floor panel, frames provided on the front and rear portions of the floor panel, a wing panel which can be freely opened and closed on the frame, and upper portions of the front and rear frames. In a cargo compartment of a truck, the wing panel has a support member for rotation and an actuator for opening and closing that can be freely opened and closed, and does not have a beam (center beam) connecting the upper center of the frame. The above-mentioned wing panel is an FRP panel having an L-shaped cross-sectional shape and an integral structure composed of a ceiling panel and a side panel, and does not have a metal reinforcing member for holding the L-shaped shape of the ceiling panel and the side panel. A metal member for opening and closing the wing panel is provided on the ceiling at the front end and the rear end of the wing panel. A rotation fastening member coupled to the rotation support member provided above the front and rear frames on the wing rotation center side of the wing panel opening / closing metal member; A clevis or a similar fastening member is provided at a location different from the wing rotation center side of the panel opening / closing metal member and at a location where the opening / closing actuator expands and contracts to open and close the wing. It is characterized by having.

[0020] In addition, at least one of the ceiling panel and the side panel of the wing panel has a sandwich structure in which FRP plates are arranged on both sides of a core material.

[0021] Further, there is provided a cargo compartment of a truck, wherein the weight per inner surface area of the wing panel is 3 kg / m ² or more and 10 kg / m ² or less.

Further, in the cargo compartment for trucks having at least the floor panel and the wing panel, the weight per surface area inside the cargo compartment is 10 kg / m ² or more and 30 k or more.
g / m ² or less, the cargo compartment of a truck.

[0023] A truck provided with these cargo compartments.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.

The present invention can be applied not only to the cargo compartment of a truck having a wing structure, but also to a cargo compartment of a box-shaped truck, a flat body type, and the like.

FIG. 1 shows a floor panel 3 of a cargo hold of a truck according to an embodiment of the present invention.

In FIG. 1, the floor panel 3 is composed of a floor 20 mainly made of an FRP plate, a vertical joist 21 made of metal, and side rails 22.

In this embodiment, as shown in FIG. 2, the floor 20 is composed of FRP plates 23 and 24 containing a woven fabric of reinforcing fibers, that is, an inner FRP plate 23 disposed inside the cargo compartment and an outer FRP plate 23 disposed therein. Outer FRP plate 24 and both panels 23 and 2
It has a sandwich structure with the core material 25 arranged between the four.

The floor 20 is designed to have a bending rigidity in the track width direction equal to or higher than that of the metal horizontal joist used for the floor panel of the conventional truck, so that the metal horizontal joist can be omitted and the weight can be reduced. This is preferable because the amount of the compound can be reduced.

The bending rigidity is 1 × 10 ⁸ kg.mm ² or more and 5 × 1
0 ¹¹ kg.mm ² or less is required, and 5 × 10 ⁹ kg.
When it is not less than 5 mm ^{2 and not} more than 5 × 10 ¹⁰ kg.mm ² , the bending stiffness of the conventional aluminum joist is equivalent to that of conventional aluminum joists.
It is more preferable in terms of weight reduction.

In this embodiment, a foam material is used as the core material 25. As the foaming material, any of organic and inorganic foaming materials can be used. When an organic foaming material is used, a foaming material reinforced with reinforcing fibers can be used. The main material is, for example, polyurethane, polystyrene, polyethylene, polypropylene, PVC
(Polyvinyl alcohol), silicon, and the like. In addition to the foam material, wood, honeycomb material, or the like can be used as the core material. The material of the honeycomb material is not particularly limited, and for example, a material obtained by forming the same resin as that used for the foam material into a honeycomb structure can be used. Also, 2
It is also possible to use more than one kind of different materials in combination.

The specific gravity of the core material is preferably low in order to reduce the weight of the entire floor.

For example, in the case of a foamed material made of the above-mentioned materials, it is preferable to select a specific gravity in the range of 0.02 to 0.2. If a material having a specific gravity of less than 0.02 is used, sufficient strength may not be obtained with respect to a load. On the other hand, when the specific gravity exceeds 0.2, the strength is increased but the weight is increased, and the original purpose of weight reduction may be impaired.

Further, a web 27 for connecting the FRP plates 23 and 24 may be provided. This web 27 can be formed of only resin, but preferably, FRP
Formed with the same FRP as the plates 23 and 24,
It is desirable that the molding is performed integrally with the molding 24. By arranging the webs in the width direction, the floorboard can have rigidity equal to or higher than that of the conventional aluminum horizontal joist, and the horizontal joist can be omitted.

The omission of the horizontal joist made of aluminum, and the flattening and simplification of the shape have the effect of significantly reducing the number of steps for forming and finishing the floorboard.

It is desirable to provide a surface forming material having a high coefficient of friction on the upper surface of the inner FRP plate in order to prevent a load from slipping and a worker from slipping.

As the material for forming the surface, for example, a material in which a granular material is contained in a resin is suitable.

The FRP constituting the FRP plate is composed of a reinforcing fiber and a matrix resin. As the reinforcing fiber, a high-strength, high-modulus fiber such as a carbon fiber, a glass fiber, an aramid fiber, and an alumina fiber can be used, and these can be used alone or as a mixture, or in combination. As the matrix resin, a thermosetting resin such as an epoxy resin, an unsaturated polyester, phenol, a vinyl ester, or a polyamide is preferable in terms of moldability and cost. However, a thermoplastic resin such as polyester or polyamide, or a mixture of the above-mentioned thermosetting resin and thermoplastic resin can also be used.

As the form of the reinforcing fibers, any form such as one arranged in one direction, one in the form of a mat, and a woven fabric can be used. In the present invention, the FRP plate is made of at least a woven fabric of the reinforcing fibers. Contains. As the woven fabric of the reinforcing fibers, a unidirectional woven fabric or a bidirectional woven fabric can be used. In addition to reinforced fiber woven fabrics, those in which reinforcing fibers are arranged in one direction or in the form of a mat may be included. It is preferable to appropriately combine these forms according to the application site, that is, to adopt an appropriate laminated configuration. At this time, a combination of different kinds of reinforcing fiber layers can be employed, or a certain reinforcing fiber layer can be used as a cross-woven layer of different kinds of reinforcing fibers. In this way, by minimizing and optimizing the lamination structure, it is possible to achieve both reduction in weight and strength and rigidity.

Also, in FIG.
Can be made of FRP and integrated with the floorboard, or a metal mold or the like.

The material of the metal mold is not particularly limited. For example, iron, aluminum or aluminum alloy, and stainless steel can be used.

By installing and fixing metal fittings between the side rails 22 and the metal vertical joists 21, it is also possible to mount components under the floor panel such as fenders and side bumpers.

The material of the metal vertical joist 21 is not particularly limited either, but it is common to use a metal mold used for the side rail 22 or the like.

In general, two metal vertical joists 21 are installed over the entire length of the floor panel, but the vertical joists cut to a predetermined length are provided at least in the chassis fastening portion.
It can be installed intermittently, and has a high light weight effect.

The method of attaching the metal joist to the floorboard is not particularly limited.

The metal vertical joist may be directly attached to the lower part of the floor panel, or may be attached via a mounting bracket.

In the case of direct mounting, the vertical joist made of metal may be integrally formed with the floor plate made of FRP so as to be directly mounted on the lower portion of the floor plate made of FRP.
The vertical joist made of metal may be attached by fastening after forming the floor plate made of FRP.

The fastening method is not particularly limited. For example, an adhesive, a rivet, a bolt, a screw, or the like can be selected or used in accordance with a required strength. For example, as shown in FIG. 3, a combination of a rivet 51 and an adhesive 52 is also effective. In addition, it is preferable to install the reinforcing metal member 53 inside the outer FRP plate 24 because the fastening strength of the rivet becomes stronger. As the material of the reinforcing metal member, for example, iron, aluminum, an aluminum alloy, or stainless steel can be used.

Further, as shown in FIG.
The flange 23 of the web 23 and the outside F
When fastened to the portion where the RP plate 24 overlaps, the load of the load from the inside of the floor can be transmitted to the vertical joist and the chassis via the web 23, which is suitable for the structure of the floor panel.

The rivet is not particularly limited, but for example, Mighty Rock, Abdel Monobolt (Nippon Drive-it Co., Ltd.) and the like can be used.

In the case of mounting via a mounting bracket, a structure in which a part of the mounting bracket is integrally formed with the FRP floor plate may be used to fix the mounting bracket in advance to the FRP floor plate.

The mounting bracket also includes a spacer for providing a space between the upper surface of the vertical joist and the lower surface of the floorboard. The spacers are shorter than the length of the vertical joist and are arranged at appropriate intervals in the length direction of the upper surface of the vertical joist.

A U-shaped bolt or the like generally used to fasten the vertical joist to the chassis of the truck is installed in a space defined by the space, the bottom surface of the floorboard, and the upper surface of the vertical joist.
It is also possible to fasten the floor panel and the chassis.

The method of fastening the metal joist and the chassis is as follows.
Although not particularly limited, the U-bolt, the opposing bracket, the slip stopper, etc., which are generally used for truck mounting,
It is selected or used together depending on the required strength and purpose.

As described above, for the floor panel, F
By optimizing the laminated structure of RP floorboards and omitting aluminum horizontal joists, the weight per loadable area is reduced by one.
2 kg / m ² or more 30kg / m ² it is possible to below, preferably Nari high weight reduction. Further, the weight per package mountable area of the floor panel 15 kg / m ² or more 20 kg / m ²
The following is more preferable because the balance between strength, rigidity and weight is improved.

FIG. 4 shows a truck provided with the wing panel 8 of the cargo compartment of the truck according to one embodiment of the present invention.

FIG. 5 shows an end structure of a wing panel of a cargo hold of a truck according to an embodiment of the present invention.

In FIGS. 4 and 5, the wing panel 8 is
The ceiling panel 81 and the side panel 82 have an L-shaped cross section and have an integral structure, and include a hinge 83 connecting the pair of wing panels 8, a wing panel opening / closing metal member 84, and a center sheet 87.

The wing panel 8 is provided with metal members 84 for opening and closing the wing panel at the front and rear ends of the ceiling of the wing panel, and at the center of the wing rotation of the metal members 84 for opening and closing the wing panel. A rotating fastening member 84a is provided, and is coupled to a rotating support member 85 provided on the upper side of the front and rear frames. In addition, a clevis or a similar part is provided at a location different from the wing rotation center side of the wing panel opening / closing metal member 84 and serving as a point of action when the opening / closing actuator 86 expands / contracts to open / close the wing. Is provided.

At the joint between the pair of wing panels 8,
Waterproof center sheet 8 to prevent rainwater from entering cargo compartment
7 is attached with an adhesive, a sealing material, a rivet, or the like.

In the truck cargo compartment according to the present invention, there is no center beam connecting the upper center of the frame in the conventional truck. This center beam is made of a metal tube, etc. and weighs at least 20k.
Since the weight is about g, by omitting the center beam, significant weight reduction can be achieved. Even in conventional trucks, there are cargo bays with aluminum or steel wing panels without the center beam, but in order to support the weight of the wing panel supported by the center beam with the ceiling frame of the wing panel itself, A considerable amount of reinforcement is required, and the effect of reducing the weight by eliminating the center beam is smaller than that of a lightweight FRP wing panel.

Further, the wing panel 8 in this embodiment does not have a metal reinforcing member for maintaining the L-shape of the ceiling panel and the side panel, and maintains the L-shaped cross-sectional shape by the integral structure of the FRP. , Lightweight.

As shown in FIG. 2, the wing panel 8 has a sandwich structure in which a core material is sandwiched between at least two FRP plates, as shown in FIG.

In particular, by forming at least the side panel 82 into a sandwich structure and designing the rigidity and strength of the inner FRP plate equal to those of the lining plate,
The board has the same function as the lining board. As a result, it is not necessary to retrofit a lining plate made of a veneer plate or the like, which is light and leads to a reduction in the number of assembly steps.

The commonly used lining plate is a plate provided so that the inner wall is not dented by the load or the load is caught when the load is taken in and out, and a plywood plate is usually used.

The core material used for the wing panel 8, F
The material of the RP plate, FRP, etc. are the same as the floor panel,
It is appropriately selected depending on the required strength and rigidity.

The outer surface is coated with a gel coat or painted, and may be used in combination. The material of the gel coat is not particularly limited, but vinyl ester, unsaturated polyester, or the like is used.

In consideration of weather resistance, hardness and the like, it can be appropriately selected and used.

The web 27 shown in FIG. 2 may be provided.

The material of the metal member 84 for opening and closing the wing panel is not particularly limited. For example, iron, aluminum or an aluminum alloy, and stainless steel can be used. In the case of iron, if you apply paint for rust prevention,
Corrosion resistance is increased, which is more desirable. The wing panel opening / closing metal member 84 is integrated with the wing panel 8.

The method of integration is not particularly limited,
Adhesion, rivets, screw fastening, integral molding, and the like can be appropriately selected and can be used together.

The function of the metal member 84 for opening and closing the wing panel is as follows. 1. Open and close the wing panel 8 by receiving the thrust of the hydraulic cylinder 86 applied when opening and closing the wing. It has the two functions of having a rotation fastening member to which the wing is rotatably mounted, and is designed to have the minimum shape and the lightest weight.

As the metal member to be attached to the wing panel, it is preferable to make it the lightest in weight, and it is preferable to have a structure in which only the metal member for opening and closing the wing panel is attached. It is also possible to use a metal member other than the wing opening / closing metal member in consideration of the strength, rigidity and the like and the load weight required by the user. However, the wing panel of the present invention is characterized in that a metal reinforcing member for maintaining the L-shaped cross-sectional shape of the wing panel is not used.

As the opening / closing actuator, a hydraulic cylinder is widely used, but the invention is not limited to this, and other means such as an electric actuator may be used.

With the above contents, the weight of the wing panel per inner surface area is 3 kg / m ² or more and 10 kg / m ² or more.
m ² it is possible to hereinafter, weight reduction effect is large,
preferable. Further, more preferably 5 kg / m ² or more and 8 kg / m ²
It is preferable if the ratio is equal to or less, because the balance between the weight reduction effect and the strength and rigidity is further improved.

As described above, by using at least the floor panel and the wing panel which have been reduced in weight, the weight per surface area inside the cargo compartment of the truck is 10 kg / m ² or more and 30 kg / m ² or less. And an ultralight truck can be obtained.

More preferably, the weight per surface area inside the cargo compartment is set to 12 kg / m ² or more and 18 kg / m ² or less, so that the cargo compartment and the ultra-light truck are balanced in practicality, strength, rigidity and the like. Can be obtained.

[0078]

As described above, according to the cargo compartment of the truck of the present invention, the first problem of the structural problem of the floor panel is that the vertical position provided on the lower part of the floor including the FRP material. By making the joists made of metal, the conventional FRP floor panel can be used without sacrificing the advantage of light weight.
It is possible to achieve the dimensional accuracy that could not be obtained with RP products, and it is possible to greatly reduce the repair work on the floor panel, and at the same time, it becomes easy to fasten to the chassis. Further, since the metal vertical joist can be fastened to the chassis at any position, it is possible to flexibly respond to a change in the type of the chassis and a change in the arrangement of the body parts under the floor panel.

Further, also in the manufacture of floor panels, a complicated structure in which a conventional FRP vertical joist with a sectional shape protrudes is simplified, so that the number of manufacturing and repair steps can be greatly reduced. If the side rails are also metallized and retrofitted to the floorboard, the cross-sectional shape of the floorboard will be more simplified, and the number of man-hours for production, modification, etc. will be further reduced.
It is effective.

Regarding the second problem, which is to further reduce the weight of the cargo compartment of the truck, in the case of the floor panel, the bending rigidity in the width direction of the floor panel is made equal to or more than that of the aluminum horizontal joist, thereby making the aluminum panel. By reducing the weight of the horizontal joist and replacing the conventional pitton material (wood) as a part of the FRP floor panel, the floor panel of the conventional lightest car (load capacity of 3.8 tons) It can be about 100kg lighter.

The wing panel is an FRP panel having an L-shaped cross-sectional shape and an integral structure, and has no metal reinforcing member for holding the L-shaped ceiling panel and side panel of the wing panel. The wing panel is provided with metal members for opening and closing the wing panel at the ceiling portions at the front end and the rear end of the wing panel, and at least the side panel has a sandwich structure, so that the function of the lining plate is provided. Approximately 100kg more than the lightest car wing panel
Can be light. As a result, it is possible to reduce the weight of the conventional metal medium-sized wing vehicle to an ultra-light vehicle (maximum loading capacity of 3.8 tons) or more, and to achieve a medium-sized wing vehicle of maximum loading capacity of 4 tons.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a floor panel of a cargo hold of a truck according to an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view illustrating an example of a floor panel according to an embodiment of the present invention.

FIG. 3 is a partial cross-sectional view showing an example of a method for fastening a floor panel and a vertical joist of a floor panel according to the present invention.

FIG. 4 is a schematic configuration diagram of a track according to an embodiment of the present invention.

FIG. 5 is a schematic configuration diagram of an end of a wing panel according to an embodiment of the present invention.

FIG. 6 is a perspective view of a conventional truck.

FIG. 7 is a plan view of the truck in FIG. 6 before the cargo compartment is mounted.

FIG. 8 is a partial longitudinal sectional view showing an example of a floor panel of a conventional truck.

FIG. 9 is a schematic configuration diagram showing an example of a conventional truck wing panel.

FIG. 10 is a partial cross-sectional view showing an example of a case where a lining plate is attached to a wing panel of a conventional truck.

[Explanation of symbols]

 1: Truck 2: Cargo compartment 3: Floor panel 4, 6: Gate frame 5: Front panel 7: Door panel 8: Wing panel 9: Lifting panel 10: Hydraulic cylinder 11: Center beam 12: Driver's seat 13: Main chassis 15 : FRP panel 16a: Vertical joist 16b: Horizontal joist 17: FRP surface plate 18: FRP stiffener 19a: Lining board 19b: Rivets 19c: Metal reinforcing member 20: Floor 21: Metal vertical joist 22: Side rail 23: Inside FRP board 24: Outer FRP board 25: Core material 27: Web 51: Rivet 52: Adhesive 53: Reinforcement metal member 81: Ceiling panel 82: Side panel 83: Hinge 84: Wing opening / closing metal member 84a: Rotating fastening member 84b: Clevis or similar fastening member 85: Rotation support member 86: Open Use actuator 87: center seat

Claims (16)

[Claims] In a cargo hold of a truck having at least a floor panel, the floor panel has at least F
A cargo compartment for a truck, comprising: a floor body including an RP material; and at least two vertical metal joists provided below the floor plate and extending in a front-rear direction of the truck. 2. The floor is provided with F at least on both sides of a core material.
The cargo compartment of a truck according to claim 1, wherein the cargo compartment has a sandwich structure in which an RP plate is arranged. 3. The cargo compartment of a truck according to claim 1, wherein the floor has a bending rigidity in a width direction which is equal to or greater than that of an aluminum horizontal joist. 4. The truck according to claim 1, wherein said metal joist is attached to a lower portion of said floor by being formed integrally with said floor. Cargo compartment. 5. The truck according to claim 1, wherein the vertical joist made of metal is attached to a lower portion of the floor by fastening after being integrally formed with the floor. Cargo hold. 6. The cargo compartment of a truck according to claim 1, wherein the metal vertical joist is attached to the floor by fastening and / or bonding. 7. The cargo hold of a truck according to claim 5, wherein the vertical joist made of metal is attached to an outer FRP plate of the floor body, which is lined with a reinforcing metal member. 8. The cargo compartment of a truck according to claim 1, wherein said vertical joist of metal is attached to a lower portion of said floor via an attachment. 9. The apparatus according to claim 8, wherein a part of the mounting bracket is integrally formed with a floor body including the FRP material.
The cargo compartment of the truck described in. 10. The area on the floor panel where luggage can be loaded.
12kg / m ^TwoMore than 30kg / m^TwoThat
The truck according to any one of claims 1 to 9, wherein
Cargo hold. 11. At least a floor panel, frames provided at front and rear portions of the floor panel, wing panels attached to the frame so as to be openable and closable, and opening and closing of the wing panel at the upper side of the front and rear frames. In a cargo hold of a truck having a rotation support member for enabling free rotation and an opening / closing actuator, and having no beam (center beam) connecting the upper center of the frame, the wing panel has a ceiling. An FRP panel having an L-shaped cross-sectional shape composed of a panel and a side panel and having an integrated structure, and having no metal reinforcing member for holding the L-shaped shape of the ceiling panel and the side panel, A wing panel opening / closing metal member is provided on a ceiling portion at a front end and a rear end of the wing panel. The cargo compartment of the truck characterized by Rukoto. 12. A rotating fastening member coupled to the rotating support member provided on the upper side of the front and rear frames on the wing rotation center side of the metal member for opening and closing the wing panel. A clevis or a similar fastening member at a location different from the wing rotation center side of the wing panel opening / closing metal member and serving as an action point when the opening / closing actuator expands and contracts to open / close the wing. 12. The cargo compartment of a truck according to claim 11, comprising: 13. The wing panel according to claim 11, wherein at least a side panel of the ceiling panel and the side panel has a sandwich structure in which an FRP plate is arranged on at least both sides of a core material. Truck cargo hold. 14. The cargo compartment of a truck according to claim 11, wherein the weight per inner surface area of said wing panel is 3 kg / m ² or more and 10 kg / m ² or less. 15. At least the floor panel and the front
In a cargo hold for trucks having a wing panel,
The weight per surface area inside the cargo compartment is 10kg / m ^TwoAbove 3
0kg / m^TwoThe following is characterized in that:
14. The cargo hold of a truck according to any one of 14. 16. A truck comprising the cargo compartment of the truck according to any one of claims 1 to 15.