JPH11292189A - Cargo box structure of wing container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form the strong flow structure of a wing type cargo box so that a conductor can be transferred and placed on a plurality of container chassises. SOLUTION: A wing container type cargo box is constituted of a front wall 4a, a rear wall 4b, a center beam 4c, a wing type opening and closing door 8, a flapper 9, a floor surface 4 covering the bottom face of the wing container type cargo box and a fastening device for fastening removably the wing container type cargo box on the container chassises. The floor surface 4 is provided with the flow structure constituted of main frames formed on both sides of the floor surface 4 and provided with wide reinforcing sections formed on their central sections, two vertical floor joists positioned between both main frames and in parallel with the main frames and horizontal floor joists crossing orthogonally the main frames and vertical floor joists and running through the vertical floor joists, and both ends of the horizontal floor joists are fixed on the main frames.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wing container carrier structure mounted on a trailer, and more particularly, to lower corner fittings provided at four corners of a wing container carrier box side mounted on a carrier, on a container chassis. The present invention relates to a floor structure in a packing box structure of a wing container which is used by being engaged with a fastener on the chassis side.

[0002]

2. Description of the Related Art Conventionally, a transport system in which a packing box is fixedly mounted on a rear frame or a trailer chassis of a truck, and a load is loaded and transported in the packing box is commonly used. In addition, container transportation, in which a cargo box called a container is detachably fastened to a vehicle and a cargo is carried while the cargo is loaded on the container, is also actively performed. In this container transportation, not only containers for marine transportation based on the ISO standard but also containers for domestic land transportation are used. In this container transportation, a container body is detachably fastened to a vehicle by a tightening device such as a twist lock, and a predetermined load is applied to the container in a truck yard and loaded on a vehicle such as a railway or an automobile. After transporting the container to a predetermined area, the system is configured to unload the container from the vehicle and distribute the cargo therein.

In such a transport system, when a large load that cannot be unloaded from the rear door is transported, a wing-type packing box having a wing-type roof opening / closing door on the side wall of the container is used. Can be Wing type packing box 1
10, the front wall 102 and the rear wall 103 are erected at the front end and the rear end of the floor 101, as is clear from FIG. On the ceiling, a center beam 104 is stretched between the centers of the upper portions of the front wall 102 and the rear wall 103. The center beam 1
Wing-type roofs 105 and 106 serving as a part of a ceiling and a side wall are attached to both sides of the door 04 so as to be freely opened and closed. In the remaining portion of the side wall, a fan 107 is attached to the floor side edge so as to be freely opened and closed.

[0004] This type of wing-type packing box has a structure in which both side walls and most of the ceiling can be freely opened and closed even if the floor 101 is fixed on a vehicle frame 108 of a truck or a chassis frame of a trailer. The packing box is not strong enough to hold the shape of the hexahedron firmly, and the packing box floor may be bent at the center, front, or rear during loading or transportation.
There is a disadvantage that the packing box is deformed into a parallelogram in the traveling direction of the vehicle.

[0005] In the above-mentioned container transportation, there is a tendency to increase the size of the packing boxes in order to reduce the transportation cost by transferring the packing boxes in large quantities. At present, large cargo boxes having a length of 30 feet or 40 feet have been developed for use in railway vehicles or trucks. Next, a description will be given of a wing type packing box which transports a load by detachably mounting a large wing type packing box on a container chassis of a trailer.

First, a container chassis to which the wing type packing box is attached will be described with reference to the drawings. FIG. 11 is a top view of the container chassis, and FIG. 12 is a side view thereof. The container chassis has an I-shaped cross section at the center along the longitudinal direction.
The main rails of the book are arranged in parallel. A plurality of cross members 111 are inserted between the main rails 109 and 110 at right angles to the rib surfaces to form a ladder-like chassis frame. A bolster 112 having ribs of two main rails penetrated in a skewered manner is fixed to the front end of the chassis frame.

A tightening device 113 having a twist lock 114 is mounted in the hollow inside of each of the left and right ends of the bolster 112. When the wing-type packing box is placed on the container chassis, the bolster 112 is set to the wing-type packing box. Is configured to be located at the lower front edge. When the wing-type packing box is actually placed on the container chassis, corner fittings provided at the front bottom corner of the wing-type packing box are tightened by the tightening device 113.
Located at the rear of. At this time, the head of the twist lock 114 of the tightening device 113 protrudes rearward from the rear surface of the bolster 112, enters and engages with the hole of the corner fitting of the large wing-type packing box to be mounted, and engages with the front edge of the packing box. To the container chassis. Similarly, bolsters 116 each having a tightening device 115 attached to both left and right ends are fixed to the rear end portion so as to pass through the main rail. This rear end tightening device 115
When the head of the twist lock 114 projects upward and a large wing type packing box is placed on the container chassis, the bolster 116 is located at the lower edge of the wing type packing box, and the rear bottom corner of the wing type packing box. The corner fitting provided in the tightening device 1
13 at the top. At this time, the head of the twist lock 114 of the tightening device 115 protrudes upward from the upper surface of the bolster 116, enters and engages with the hole of the corner fitting of the large wing-type packing box to be placed, and the trailing edge of the packing box To the container chassis.

Since the height of the king pin 117 provided at the front end of the frame of the container chassis is regulated by the height of the connecting portion of the tractor that pulls the king pin 117, the height of the king pin 117 is adjusted to the height of the connecting portion on the tractor side from FIG. As is apparent, a step 118 generally called a gooseneck is formed in front of the main rails 109 and 110, and the front end is raised. Corresponding to the step 118, a recess called a tunnel recess is formed in the lower surface of the floor on the container side to be placed thereon to accommodate the step 118 called a gooseneck. As described above, the large packing box is provided with a recess or is detachably locked at only two front and rear positions on the container chassis and placed on it. Unlike a lorry, strength will be imparted to the structure of the packing box.

For the reasons described above, the wing-type packing box mounted on the container chassis must increase the strength of the packing box as the size increases. In the case of a wing-type packing box, the side rails provided along both sides of the floor of the packing box are made stronger than the normal packing box, and the front wall and the rear wall swing with respect to the side rails. In order to prevent movement, the floor corners use structural members that are stronger than ordinary packing boxes.

In order to solve such a problem on strength, the applicant of the present invention has proposed an invention relating to a wing-type packing box as disclosed in Japanese Patent Application No. Hei.
-313812. FIG. 13 is a side view showing a state where the wing-type packing box according to the present invention is fastened on a container chassis. According to the present invention, in the packing box, four sides of a plane structure that does not deform in the plane direction
2. Rear wall 103, floor 101, ceiling center beam 1
It is fixed to the inner part of the floor part 04 to reduce the weight of the structural members of the floor part 101 and to reinforce the strength of the packing box. FIG.
4 shows a top view of the packing box, in which a dotted line indicates a floor frame. The frame of the floor 101 has a conventional general configuration, and has side rails 119 along both sides.
And a cross member 120 is provided between both side rails 119.
And the both ends are connected to the side rail 119. At the center of the front end of the floor 101, there is provided a tunnel recess 121 formed with a recess facing downward. Short cross members 122 are provided on both sides of the tunnel recess 121.

FIG. 15 is a partial cross-sectional view showing the cross-sectional structure of the floor 101 taken along the line AA in FIG. As is apparent from FIG. 15, the heavy side rails 119 which are tall and have a large weight per unit are provided on both sides of the floor 101.
Is mounted between the lower corners of the front wall and the rear wall. A plurality of cross members 120, which are heavier than usual, are inserted between the left and right side rails 119, and each cross member 120
End is abutted against the side rail 119 and fixed firmly by welding. A floor auxiliary plate (not shown) is interposed on the upper portion of the cross member 120, and a wooden floor material is stretched in the longitudinal direction. As described above, with the configuration in which the planar structure is installed in the packing box, it is possible to reduce the weight of the structural members conventionally used for the floor and to reinforce the packing box.

By the way, in such a container transportation system, it is required to maximize the cargo volume in the cargo box from the viewpoint of cargo transportation efficiency. In particular, with the wing-type packing box as described above, as the packing box becomes longer, a heavy structural member is assembled on the floor thereof. As a result, when the floor frame is placed on the main rail on the chassis side, the floor surface is inevitably raised. However, since the height of the upper surface of the packing box of the trailer is restricted to 3.8 m by law, the height of the inside of the packing box is reduced. The wing-type cargo box according to the invention of the applicant described above is suitable for the cargo to be transported. However, for a particular cargo, the central planar structure (central truss structure) serves as a cargo handling barrier. Sometimes.

[0013]

SUMMARY OF THE INVENTION The present invention relates to a container box of a container trailer for mounting a wing type packing box on a container chassis as described above. In a packing box having corner fittings to be fastened, the floor structure of the packing box is strengthened so that the car can be detachably mounted on another vehicle from the vehicle to which the packing box is fastened, and the floor is An object of the present invention is to provide a floor structure capable of increasing the strength of a packing box without raising the load to reduce the load capacity of the load.

[0014]

According to a first aspect of the present invention, there is provided a wing container type packing box mounted on a container chassis.
Front wall erected on the front of the wing container box, rear wall erected on the back of the wing container box, a center beam connecting the front wall and the upper end of the rear wall, and rotatable on both sides of the center beam A wing-type opening / closing door, which is hinged on the ceiling and partially covers the ceiling and the side wall, a fan that is rotatably provided on the lower edge of the side wall and covers a part of the side wall, and a floor surface that covers the bottom surface of the wing container-type packing box; A tightening device for detachably securing the wing container type packing box to the container chassis, wherein the floor surface is provided on both sides of the floor surface, and a main frame provided with a wide reinforcing portion at a central portion; and both main frames. It has a floor structure in which two vertical joists located between and parallel to these, and the main frame, both ends of the horizontal joists that are orthogonal to the vertical joists and penetrate the vertical joists, are fixed to the main frame. Wing container To provide a load box structure. The invention according to claim 2 of the present invention provides a packing box structure for a wing container, wherein the horizontal joist and the vertical joist are covered with a floor plate in the above invention. The invention according to claim 3 of the present invention provides the packing box structure for a wing container according to the above invention, wherein additional members are provided outside the main frames.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view showing a trailer in which a wing type packing box 1 to which the present invention is applied is detachably mounted on a container chassis 2. The container chassis 2 is the same as the conventional one shown in FIGS. 10 and 11, but will be described here. The container chassis 2 is provided with a main rail 3 penetrating in the vicinity of the center thereof along the longitudinal direction, and a front and rear wheel 5 and a rear rear wheel 6 are not shown clearly in the rear of the main rail 3. Attached via device. A landing leg 7 is fixed to the front part of the main rail 3, and when the container chassis 2 is separated from the tractor, the landing leg 7 lands, as shown in FIG. 1, to support the load of the wing type packing box 1. Let it. A bolster 112 is fixed to the tip of the main rail 3.

A tightening device 113 having a twist lock is provided in the hollow inside of each of the left and right ends of the bolster 112.
Are mounted, and the bolster 112 is positioned at the front lower edge of the wing-type packing box when the wing-type packing box is placed on the container chassis. In this state, the corner fitting provided at the front bottom corner of the wing type packing box is
3 at the rear. At this time, the head of the twist lock of the tightening device 113 projects rearward from the rear surface of the bolster 112, enters and engages with the hole of the corner fitting of the large wing-type packing box to be mounted, and fixes the front edge of the packing box. Tighten to the container chassis. Similarly, bolsters 116 each having a tightening device 115 attached to both left and right ends are fixed to the rear end portion so as to pass through the main rail. When the head of the twist lock projects upward and the large wing-type packing box is placed on the container chassis, the bolster 11
6 is located at the lower edge of the wing type packing box, and a corner fitting provided at the rear bottom corner of the wing type packing box is located above the tightening device 115. At this time, the head of the twist lock of the tightening device 115 protrudes upward from the upper surface of the bolster 116, enters and engages with the hole of the corner fitting of the large wing-type packing box to be placed, and fixes the rear edge of the packing box. Tighten to the container chassis.

Next, the structure of the large wing type packing box according to the present invention will be described. Wing type packing box 1
The front wall 4a is erected at the front end of the vehicle and the rear wall 4b is erected at the rear end. A center beam 4c is stretched between the center of the upper end of the front wall 4a and the rear wall 4b. 8 is rotatably hinged. Further, a fan 9 is provided on the lower side. The fan 9 is divided into three pieces.
Are configured to support the front and rear fans 9,9,9.
The front corner pillar 4d and the rear corner pillar 4 which form the framework of the front wall 4a and the rear wall 4b
The lower end of e is provided with corner fittings 25 and 115, and is connected to the bolsters 112 and 116 by a tightening device. A hydraulic unit is mounted on the front wall 4a,
In FIG. 10B, a double door is suspended by a hinge so as to be freely opened and closed as described in FIG.

The present invention is characterized by the structure of the floor 4 of the wing-type packing box 1 which is firmly constructed. Next, the structure of the floor will be described. On both sides of the floor 4, both main frames 1
1 is attached. FIG. 2 is a top view of the container chassis 2, and FIG. 3 is a side view thereof. As shown in FIG. 2, near the center of the container chassis 2, two vertical joists 12, 12 penetrate in the longitudinal direction thereof. As is clear from FIGS. 2 and 3, both main frames 11, 11 are attached to both sides of the floor surface 4 in the longitudinal direction thereof. As is clear from FIG. 3, a reinforcing portion 11 ′ having a large vertical width is formed at the center of both main frames 11. An auxiliary member 11 ″ is provided on the outer side surfaces of the main frames 11, 11 along these.

As can be seen from FIG. 2, a plurality of horizontal joists 13 are provided on the floor surface 4 between the main frames 11 and 11. This horizontal joist 13 is composed of two vertical joists 12,
12 and both ends thereof are both main frames 11,
11 is welded inside. This situation is shown in FIGS.
This will be described with reference to FIGS. FIG. 4 shows AA in FIG.
FIG. 5 is a partial sectional view taken along a line, and FIG.
FIG. 4 is a partial cross-sectional view along the line B. FIG. 6 is a partial cross-sectional view along the line CC in FIG. 5, and FIG. 7 is a partial cross-sectional view along the line DD in FIG.

As can be seen from FIG. 6, the horizontal joist 13 is inserted into the vertical joist 12 through a through hole cut out in an I-shape, and the periphery thereof is fixed by welding with a welding material 14. Also, as can be seen from FIG.
It is welded and fixed by a welding material 15 on the inner side of 1 and 11. Returning to the description of FIG. 2, in front of the floor surface 4,
Parallel to 3, a cross beam 16 is provided, and both ends thereof are fixed inside the main frame 11. A front beam 17 is provided at the front end of the floor surface 4. A horizontal joist 18 is arranged between the cross beam 16 and the front beam 17 in parallel with them, and their ends are welded inside the main frame 11.

FIG. 8 is a partial sectional view taken along the line EE in FIG. As can be seen from FIG. 8, a floor plate 19 is stretched toward the center on the lower surface of the horizontal joist 18, and both sides thereof are bent to form vertical beams 20, 20. In addition, an inverted concave tunnel recess 21 formed in the longitudinal direction is formed on the lower surface of the floor panel 19. Of course, the tunnel recess 21 is formed, into which the towing part of the tractor for towing the trailer is inserted, and the tractor and the trailer are connected by a kingpin not shown in the figure, but this departs from the gist of the present invention. Further description is omitted. As can be seen from FIGS. 4 and 5, a wooden floor plate 22 is stretched on the horizontal joist 13, and a floor plate 23 is stretched on the horizontal joist 18 as can be seen from FIG.

Corner fittings 25 are provided at the connecting corner between the main frame 11 and the front beam 17 and at the connecting corner between the main frame 11 and the rear beam 24 as shown in FIG.
The corner fitting 25 has an oval engaging hole 26 for fitting a twist lock (lock pin) for fixing the corner fitting 25 to the container chassis 2.

To assemble the wing type container 1, a front wall is erected on the front beam 17 of the floor 4 assembled as described above, and a rear wall with a door is provided on the rear beam 24. A center beam spans the center of the upper edge of the front and rear walls. On both sides of the center beam, wing-type open / close doors are rotatably mounted, and the main frames 11, 11 are fixed with a pivoting pillar 10 and a pivot 9 is rotatably provided.

Although the present invention has been described with reference to the above-described embodiment, various modifications and applications are possible within the scope of the present invention, and these modifications and applications are excluded from the scope of the present invention. is not.

[0025]

As described above in detail, the invention according to claim 1 of the present invention is characterized in that two vertical joists vertically passing through the floor surface of a wing type packing box and two parallel joists attached to the side surfaces are provided. The main structure of the book is a basic structure, a floor structure with multiple horizontal joists arranged at a position orthogonal to these, and a wide reinforcing part is formed at the center of the main frame, so it is structurally fragile wing type Even if it is a packing box, even if it has the same size as a durable container without a wing door like a marine container and has a structure detachable from the container chassis, there is no problem in strength. Further, a trailer provided with a container chassis for transporting the marine container can be used for transporting a wing type packing box, so that the operation efficiency of the trailer is extremely improved. In the invention according to claim 2 of the present invention, since the floor surface is covered with the floor plate, a packing box having a closed structure can be configured. In the invention according to claim 3 of the present invention, since the auxiliary member is provided on the side surface of the main frame, it has the effects of reinforcing the main frame and providing a hinged portion to the main frame.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a top view showing a floor surface of the wing container type packing box of the present invention.

FIG. 3 is a side view showing a floor surface of the wing container type packing box of the present invention.

FIG. 4 is a partial cross-sectional view taken along line AA in FIG. 2;

FIG. 5 is a partial sectional view taken along line BB in FIG. 2;

FIG. 6 is a partial cross-sectional view taken along the line CC in FIG. 5;

FIG. 7 is a partial sectional view taken along the line DD in FIG. 5;

FIG. 8 is a partial sectional view taken along line EE in FIG. 2;

FIG. 9 is a partial perspective view showing the tightening device.

FIG. 10 is a perspective view of a conventional device.

FIG. 11 is a top view showing a conventional container chassis.

FIG. 12 is a side view showing a conventional container chassis.

FIG. 13 is a top view of a conventional wing-type packing box.

FIG. 14 is a side view of a conventional wing-type packing box.

FIG. 15 is a sectional view taken along line AA in FIG. 13;

[Explanation of symbols]

 1 ... Wing type packing box 2 ... Container chassis 3 ... Main rail 4 ... Floor surface 4a ... Front wall 4b ... Rear wall 4c・ ・ ・ Center beam 4d ・ ・ ・ ・ ・ ・ Front corner post 4e ・ ・ ・ ・ Rear corner post 5 ・ ・ ・ ・ ・ ・ ・ ・ ・ Front and rear wheel 6 ・ ・ ・ ・ ・ ・ Rear rear wheel 7 ・ ・ ・ ・ ・ ・ Landing leg 8 ・ ・ ・··· Wing type opening and closing door 9 ·············································································· Main frame 11 ′ ··············· ··········································································································· ..Vertical beam 21 Tunnel recess 22 Floor plate 23 Floor plate 24 Rear beam 25 Corner fitting 26 Engagement hole 10・ ・ ・ Wing type packing box 101 ・ ・ ・ Floor part 102 ・ ・ ・ Front wall 103 ・ ・ ・ Rear wall 104 ・ ・ ・ Center beam 105 ・ ・ ・ Wing type roof 106 ・ ・ ・ Wing type roof 107 ・ ・ ・ Fan 108 ... vehicle frame 109 ... main rail 110 ... main rail 111 ... cross member 112 ... bolster 113 ... tightening device 114 ... twist lock 115 ... tightening device 116 ... Bolster 117 King pin 118 Step 119 Side rail 120 Cross member 121 Tunnel recess 122 Cross member

Claims (3)

[Claims] 1. A wing container type cargo box mounted on a container chassis, wherein a front wall erected on a front surface of the wing container type cargo box, a rear wall erected on a rear surface of the wing container type cargo box, and a front wall. A center beam that connects the upper end of the rear wall and a wing-type door that is rotatably hinged on both sides of the center beam and covers a part of the ceiling and the side wall. A floor covering the bottom of the wing container type packing box, and a tightening device for detachably securing the wing container type packing box to the container chassis, the floor surface being provided on both sides of the floor surface. A main frame provided with a wide reinforcing portion in the center portion, two vertical joists located between the two main frames and parallel thereto, and a horizontal joist that is orthogonal to the main frame and the vertical joist and penetrates the vertical joist. Both ends of Packing box structure wing container and having a floor structure which is fixed in frame. 2. The packing box structure for a wing container according to claim 1, wherein the horizontal joist and the main frame are covered with a floor plate. 3. The packing box structure for a wing container according to claim 1, wherein an auxiliary member is provided outside the main frames.