JPH07156967A - Packing case - Google Patents

Abstract

PURPOSE:To make fixation of cushioning material easy, and to greatly improve efficiency in packing work by providing tilts respectively to side walls on the front, the rear, the right and the left of a tray and a bottom cushioning material. CONSTITUTION:Tilts leaning toward the inside are provided respectively to side walls 14 and 14 facing each other on the right and the left and side walls 15 and 15 facing each other on the front and the rear of a tray 8, and the distance between the upper ends of each of the opposite side walls is made to become smaller approximately by 10mm. Thereby, a bottom cushioning material 11 can be fixed firm by the opposite side walls 15, 15 on the front and the rear and the opposite side walls 14, 14 on the right and the left and furthermore, the bottom cushioning material 11 can be fitted easily into the tray 8. Utilizing elasticity of the tray that is made of corrugated board paper. Therefore, efficiency can be improved greatly in packing work. As parts requiring alternations for the bottom cushioning material 11 and the tray 8 are minimized, packing capacity, material and cost are left unchanged from the basic design in conventional method. Since the cushioning material is fitted along the tilts on the opposite side walls on the front, the rear, the right and the left of the tray, the cushioning material can be prevented from being removed when a packed article is taken out on unpacking.

Description

Detailed Description of the Invention

[0001]

This invention relates to an air conditioner, a television,
The present invention relates to a C-type packaging box structure for packaging a rectangular package such as a refrigerator, and more specifically, to improvement of a tray box and a bottom cushioning material structure of the C-type packaging box and improvement of workability when assembling the C-type packaging box into the tray box. It is a thing.

[0002]

2. Description of the Related Art As shown in FIGS. 1 to 3, a conventional C type packaging box structure has a rectangular tray box 1 having four sides of a plate-like body such as corrugated cardboard and a rising edge and a tray box 1 outside the side wall. A C-type packaging box consisting of an outer box (not shown) to be covered from above and a pair of rectangular bottom cushioning materials 2 such as Styrofoam are provided, and when the packaging object 4 is packaged, the bottom cushioning material 2 is placed in the tray box 1
They are installed in close contact with each other along the inner surfaces of the opposite side walls 3 on the front, rear, left and right sides, and the objects to be packaged 4 are placed and fixed on these bottom cushioning materials 2 for packaging.

Further, conventionally, an adhesive has been used on the bottom surface (not shown) of the bottom cushioning material 2 to adhere and fix it to the tray box 1. Alternatively, a convex projecting piece is provided on the outer wall surface of the bottom cushioning material 2, and a hole or a notch for penetrating the projecting piece is provided on the bottom cushioning material 2 on the wall surface of the tray box 1.
It was a structure to fix.

[0004]

However, in the former structure, the bottom cushioning material 2 is not connected to the opposing side walls 3 on the front, rear, left and right sides of the tray box 1 and the bottom cushioning material 2.
When the object to be packaged 4 is placed on the tray 4, the side wall 3 of the tray box 1 is elastically deformed due to its weight, and the central portion expands in an inverted C shape, as shown in FIG. 2, between the left and right inner walls of the outer box. It becomes larger than the interval L1.

Therefore, when the packaged body 4 is assembled, the lower end of the outer box is caught by the upper ends of the central portions of the opposite side walls 3 on the left and right sides, and the outer casing 1 must be covered while pressing the central portions thereof toward the bottom cushioning material 2. There was a great deal of annoyance.

Further, in the latter structure, when the outer box is assembled,
There was no effect in preventing the central portion of the tray box 1 from being caught.

Also, in this structure, when vibration or a drop load is applied to the packaged object 4 during transportation, stress is likely to be concentrated around the protrusions provided on the bottom cushioning member 2, and the protrusions are bent and the tray is folded. There is a defect in quality stability during transportation, such as breakage of the notch of the box 1.

The present invention solves the above-mentioned conventional drawbacks, and an object of the present invention is to provide a packaging box in which the cushioning material can be easily fixed and the packing work efficiency can be greatly improved. To do.

[0009]

To achieve this object, the present invention is one in which the tray box and the bottom cushioning material are provided with inclined front, rear, left and right side walls, respectively, and both are fixed and held by the elastic force of the tray box. is there.

[0010]

With this structure, the cushioning material can be easily fixed,
In addition, it is possible to prevent the tray box from spreading in the shape of an inverted V near the center of the side wall.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.
Will be explained with reference.

As shown in FIGS. 3 to 7, the C-type packaging box structure 7 includes a tray box 1, an outer box 9 and a pair of top cushions 10 having the same structure as the conventional one, and a pair of bottom cushioning members 11. And buffers 11 and 12 at the top and bottom corners of the packaged object 12 such as an air conditioner, TV, and refrigerator.
After the packaging, the tray box 8 and the outer box 9 are joined by the two binding bands 13.

All of these have substantially the same construction and positional relationship as in the conventional case, but the tray box 8 is provided with inward inclinations on its left and right side walls 14 and front and rear side walls 15, respectively. The distance between the upper outer walls of the
It is formed narrowly on the inside by about 0 mm.

By forming these slopes, the bottom cushioning material 11 can be fixed by the front and rear facing side walls 15 and the left and right facing side walls 14 of the tray box 8 as shown in FIG. The bottom cushioning material 11 can be easily attached by utilizing the elasticity of the. Therefore, the packing workability can be greatly improved, and the bottom cushioning material 11 and the tray box 8 can be changed to a minimum number, so that the packaging volume, material, cost, and the like can be made as in the conventional basic design. The quality of the packaged product can be maintained at the same level as or higher than conventional ones.

[0015]

As is apparent from the above-described embodiment, the present invention has the front and rear facing side walls and the left and right facing side walls of the tray box, and since the cushioning material is joined along these slopes, the unpacking work is performed. At this time, it is possible to easily carry out the packaging work which can prevent the packaged article from being taken out and the cushioning material from coming off from the tray box.

Further, since no adhesive or the like is used for the packaging material, the post-disposal treatment can be easily removed without the trouble of the peeling work.

[Brief description of drawings]

FIG. 1 is a sectional view of a packaging box according to an embodiment of the present invention.

FIG. 2 is a perspective view of the tray box.

FIG. 3 is a perspective view of the cushioning material.

[Figure 4] Development view of the tray box

FIG. 5 is a perspective view showing the same packaging state.

FIG. 6 is an exploded perspective view of a packaging box in a conventional example.

FIG. 7 is a sectional view of the same.

[Explanation of symbols] 5 Inclination of bottom cushioning material 6 Inclination of tray box 7 C type packaging box structure 8 Tray box 9 Outer box (lid box) 10 Top cushioning material 11 Bottom cushioning material 12 Wrapped material 13 Band 14 Left right side Opposite side wall 15

Claims (2)

[Claims] 1. A C-shaped packaging box comprising a rectangular tray box in which four sides of a plate-like body such as corrugated cardboard are bent and standing upright, an outer box covered from outside the side wall of the tray box, and an inner surface of the bottom of the tray box. And a bottom cushioning member having a length extending over the entire short side of the tray box for fixing and supporting the packaged object, and the front and rear and left and right upper ends of the tray box are respectively inclined inward. Packaging box. 2. The packaging box according to claim 1, wherein the bottom cushioning material has an outer wall inclined surface formed along the inner wall inclined surface of the tray box.