JPS5942333Y2 - tray case - Google Patents

Description

[Detailed description of the invention] This invention makes the side walls protrude at the corners of the box, thereby creating a gap between the side walls of adjacent boxes, allowing ventilation inside the box even when several boxes are stacked side by side. This invention relates to a tray case, which is an assembly box with good quality.

As the tray case blank according to the present invention, a relatively rigid plate material is used, and as shown in FIG.
At the top and bottom of the bottom part 11 having an appropriate width and length, outer front and back side walls 13 are provided via the first folding line 12, and a second wall is provided on the outside thereof.
Inner front and rear side walls 15 are provided via the folding line 14.

First bent reinforcing side walls 17 are provided on both side edges of the inner front and rear side walls 15 via folding lines 16.

On the other hand, left and right side walls 30 are provided on the left and right sides of the bottom part 11 via folding lines 25, and the width W1 of the left and right side walls 30 is set to the width W of the bottom part 11.
The side wall left and right protrusions 81 are formed to be larger than 2.

A second bent reinforcing side wall 33 is provided on the left and right side wall protrusions 31 via the bending lines 7, respectively.

In addition, left and right upper covering parts 35 are provided on the left and right side walls 30 via folding lines 26, and second insertion pieces 36 are provided on both sides of the left and right upper covering parts 35 via folding lines 28, respectively.

Furthermore, a first insertion hole 19 corresponding to the first insertion piece 20 provided on the outer edge of the inner front and rear side walls 15 is carved in the first folding line 12, and a A second insertion hole 24 corresponding to the second insertion piece 36 is carved in the second folding line 14.

Further, a lower ventilation hole 21 corresponding to the lower ventilation inner hole 22 provided on the outer edge of the inner front and rear walls 15 is carved in contact with the first folding line 12, and an upper ventilation hole 28 is formed across the second folding line 14 on both sides thereof. It will be engraved throughout.

With the assembly box material 10 formed as described above, first, the inner front and rear side walls 15 are folded along the second folding line 14 to abut and overlap the outer front and rear side walls 13, and then the first fold is made as shown in FIG. The first insertion piece 20 is inserted and fixed into the first insertion hole 19 by bending it along the curve 12 to stand upright, and the first bending reinforcing side wall 1
7 onto the third folding line 25.

Then, upper ventilation holes 23 are formed on the upper edges of the front and rear side walls.
A lower ventilation hole 21 is formed at the lower edge.

Next, the second bent reinforcing side wall 33 is bent along the folding line 27 and brought into contact with and superimposed on the left and right side walls 30, and both are bent at the third folding line 25 to stand upright, and the left and right upper cover portions 35 are folded along the fourth folding line. The second insertion piece 36 is inserted into the second insertion hole 24 formed on the second folding line 14 and fixed.

The tray case 40, which is an assembly box according to the present invention assembled as described above, has a double structure including the inner front and rear walls 15 and the outer front and rear walls 13, so that the front and rear walls 41 of the tray case 40 are strong and do not fall down, and the left and right side walls 42 are also stable. It has a double structure with the first reinforcing side wall 17 abutting on the inside and is strong.

The tray case 40 according to the present invention can also be used by covering the upper part with a synthetic resin film or the like as necessary after storing articles in the tray case 40, or by stacking the tray cases 40 as appropriate. The tray case 40 has ventilation holes 21 and 23 in the front and rear side walls 13, so that the inside of the tray case 40 can be well ventilated with the outside of the tray case.

Furthermore, by making the width W1 of the left and right side walls 42 of the tray case 40 larger than the width W2 of the bottom 11, side wall left and right protrusions 31 are formed, and the tray case 40 is made to protrude beyond the front and rear side walls 41. When stacking, the protrusion 31 hits the side wall of the adjacent tray case, and the front and rear side walls 13 of the tray case 40 touch the wall, etc., not only when it comes into contact with an adjacent tray case but also when it comes into contact with the wall of the warehouse. Since a gap is maintained between them, the ventilation holes 31 in the front and rear side walls 41 are not blocked.

Since the protrusion 31 protrudes beyond the bottom 11 of the tray case 40, even when the tray cases 40 are stacked, the gap between the front and rear walls 13 of the tray cases or the gap between the front and rear walls 13 is small. Continuing upward, tray case 4
There is a continuous gap between the inside and outside of the 0, which has the advantage that air permeability is not inhibited and stored items do not get mixed up.

The protruding portion 31 has a double structure and is strong due to the second bent reinforcing side wall 83.

The above-described embodiment of the present invention is a tray case 40 assembled from the raw material 10 shown in a developed view as shown in FIG.
However, the present invention is not limited to the above-mentioned embodiment.

That is, in the present invention, the left and right protrusions, which are formed by making the width of the first set of opposing side walls larger than the width of the bottom part, protrude outward from the other opposing second side walls and the bottom part. Since the tray case is of an upward-opening type and is characterized by a structure in which ventilation holes are provided in the side walls of the tray, the ventilation holes are not always blocked, and there is an advantage that ventilation into the case is improved.

[Brief explanation of the drawing]

Fig. 1 is a developed view of the material of the mooring box according to the present invention, Fig. 2 is a perspective view during assembly, and Fig. 3 is a perspective view of the assembled box. 10...Material, 11...Bottom, 13...Outer front and back walls, 15...Inner front and back walls, 21.23...Vent holes,
30... Left and right side walls, 31... Side wall left and right protrusions, 40
...Tray case.

Claims (1)

[Scope of utility model registration request] The left and right protrusions formed by making the width of the first set of opposing side walls larger than the width of the bottom protrude outward from the other opposing side walls and the bottom of the second set, and the side walls of the second set. An upward-opening tray case featuring a structure with ventilation holes.