JPS6128758Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the improvement of a packaging box used for transporting cargo, and its purpose is to provide a packaging box that is easy to assemble and strong.

The packaging box is composed of a floor plate installed at the bottom, a side plate erected on the floor plate, and a lid plate that closes an opening at the upper end formed by the side plate. Conventionally, a structure as shown in FIG. 1 has been adopted as means for joining the side plates of the packaging box. Front and rear side plates 6a and 6b are erected at both front and rear ends of a floorboard 1 made of wood, and the front side plate 6a and the rear side plate 6b are opposed to each other. These side plates 6a, 6b
is made of a thin metal plate, and U-shaped locking pieces 7a, 7b are provided at both left and right ends of the side plates 6a, 6b. A left side plate 3a and a right side plate 3b are inserted between the front and rear side plates 6a, 6b, respectively. That is, both ends of the left and right side plates 3a, 3b are bent inward at approximately right angles to form a bent portion 4.
U-shaped locking portions 5a, 5b are provided at the tips of the bent portions 4a, 4b, respectively, and locking pieces 7a, 7b of the front and rear side plates 6a, 6b are provided with left and right side plates 3a. , 3b, the left and right side plates 3a, 3b are engaged with the front and rear side plates 6.
It is inserted along the locking pieces 7a and 7b of a and 6b. In this way, the left and right side plates 3a, 3b are joined to the front and rear side plates 6a, 6b.

Although this means of joining the side plates is easier to assemble than joining by welding, soldering, rivets, screws, hinges, seamer wrapping, etc., it is not without drawbacks. In other words, it is necessary to lift and insert the left and right side plates 3a and 3b between the front and rear side plates 6a and 6b, which are fixed upright, respectively, which is a complicated work, and especially when the left and right side plates 3a and 3b are long in width or height. In this case, it is difficult to insert both ends of the side plates 3a and 3b evenly, and they often get caught in the middle.

The present invention has been made to eliminate such drawbacks, and one embodiment thereof will be described with reference to Figs.

A combination of left and right side plates 13a, 13b and front and rear side plates 14a, 14b are erected on a floorboard 12, on which slipping materials 11, 11 made of wood are fixed at a predetermined interval on the underside. These four side plates 1
The upper end opening formed by the surroundings 3a, 13b, 14a, and 14b is a lid body 15 made of a thin metal plate.
It is becoming blocked by

The side plates 13a, 13b, 14a, and 14b are all made of galvanized plates, thin metal plates such as black thin iron plates, or colored iron plates, and both edges of each are recessed inward and folded outward into a U-shape to form a locking portion. 16 are provided vertically along the edge. Then, the left and right side plates 13a, 13b and the front and rear side plates 14a, 14b are arranged at right angles to each other to form a square shape, and the folded parts 17 of each locking part 16 are adjacent to each other at right angles, and the inner cavity of the locking part 16 is The L-shaped connecting member 20, which is bent at right angles from the center by forming folded tongue pieces 19, 19 vertically along both edges to be fitted into the side plates 13a, 13b, 14a, 14
The side plates 13a, 13b, 14a, 14 are fitted from the upper end to the lower end of each adjacent portion 21 of b.
b are connected by four connecting members 20. As shown in FIG. 4, side plates 13a, 13b, 14a, 14b
When the connecting member 20 is inserted into each adjacent portion 21 of the connecting member 20, the folded tongue piece 1 formed by bending in a U shape
9 and the U-shaped locking portion 16 are engaged in a meshing state, and the adjacent folded portions 17, 17 are in strong contact with each other. The lower ends of the side plates 13a, 13b, 14a, 14b are attached to the sliding material 11 or the floor plate 12 by nailing or the like.
A space 22 for accommodating luggage is formed inside.

As mentioned above, the packaging box according to the present invention has side plates 1
The end edges of 3a, 13b, 14a, and 14b are recessed inward and folded outward in a U-shape to form the locking portion 1.
6 and side plates 13a, 13b, 14a, 14
The side plate 13 is arranged so that the folded portions 17 of the vertical locking portions 16 along the edges of b are in contact with each other at right angles.
a, 13b, 14a, 14b are adjacent to each other, and folded tongue pieces 19, 19 which are fitted into the inner cavity 18 of the locking part 16 are formed vertically along both edges of the L-shaped connecting member 20. The side plate 13a, 1
3b, 14a, 14b from the upper end to the lower end of the adjacent part 21, the adjacent side plate 13a, 13
b, 14a, 4b are connected by a connecting member 20, and the outer surfaces of the side plates 13a, 13b, 14a, 14b and the outer surface of the connecting member 20 are formed almost permanently.

Therefore, by inserting the connecting member 20, the side plate 13
Since a, 13b, 14a, 14b are connected,
The packaging box is easy to assemble, and compared to the conventional method of lifting and inserting a wide side plate between upright side plates, it is only necessary to insert the narrow and lightweight connecting member 20, making the insertion process smooth and labor-intensive. can be reduced. In addition, since the connecting members 20 inserted into the adjacent parts 21 of the side plates 13a, 13b, 14a, and 14b have a reinforcing effect, they have the advantage of being extremely stable against vibrations and shocks during transportation. and has high practical value.

Moreover, since the outer surface of the side plate and the outer surface of the connecting member are almost solid, when disassembled, it is compact and not bulky, and the internal volume is large relative to the external dimensions, making it very convenient for shipping by ship.

[Brief explanation of drawings]

FIG. 1 is a plan view of a conventional packaging box with the lid plate removed. 2 to 8 show an embodiment of the packaging box according to the present invention. Figure 5 is a plan view of the packaging box with the lid removed, Figure 6 is a bottom view of the packaging box, Figure 7 is a vertically cut side view of the packaging box, and Figure 8 is a connecting member attached to the adjacent side plate. FIG. 3 is an enlarged perspective view showing a state in which the 13a, 13b...Left and right side plates, 14a, 14
b...Front and rear side plates, 16...Locking portion, 17...Folded portion, 18...Inner cavity portion, 19...Folded tongue piece,
20... Connecting member, 21... Adjacent part.

Claims (1)

[Scope of utility model registration request] The end edges of the side walls 13a, 13b, 14a, 14b are recessed inwardly and folded outward in a U-shape to form a locking portion 16.
The side plates 13a, 13b, 14a, and 14b are arranged adjacent to each other so that the folded portions 17 of the vertical locking portions 16 along the edges of the locking portions a and 14b are in contact with each other at right angles, and the inner space of the locking portion 16 is The L-shaped connecting member 20, in which the folded tongue piece 19 which is fitted into the portion 18 is formed vertically along both end edges, is connected to the side plate 13a,
13b, 14a, 14b from the upper end to the lower end of the adjacent part 21, the adjacent side plate 13a, 13
b, 14a, 14b are connected by a connecting member 20, and the outer surfaces of the side plates 13a, 13b, 14a, 14b and the outer surface of the connecting member 20 are formed almost permanently.