JPH0526018Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a four-corner box that is easy to disassemble, and particularly to a box that is easy to disassemble when disposing of a four-corner assembled box with flaps glued to the end board.

[Prior Art and Problems to be Solved] A so-called four-corner glued box, which has flaps glued to the end plate, is a box with relatively strong structure and is widely used for storing various products.

On the other hand, when it came time to dispose of it, there was a problem that it could not be easily folded or crushed by hand because the four corners were reinforced by the glued parts of the end plate and flap. Furthermore, it was not possible to provide perforations or the like at the four corners because this would pose a problem in terms of strength for distribution.

On the other hand, with a tray similar to an assembly box with the four corners glued together, a folding line of approximately 45° is provided at both ends of the side plate, and the side plate is folded inward from the folded line.
Next, a four-corner tray is known that can be folded by folding the end plates along the fold lines (published on December 20, 1971, Patent Office Bulletin Collection of Commonly Used Techniques (Packaging Industry)
(See page 338).

However, although this tray is convenient for folding and assembling, when discarding it, even if you hold down the four corners with the crease lines from above and fold it, the thicker the paper, the easier it is to return and the harder it is to flatten.

In addition, when the connecting piece of the side plate and the end plate is bent, a horizontal cut groove is exposed on the surface, and the tongue piece of the tongue piece connecting part extending on the side wall is inserted into the cut groove and engaged, allowing for easy folding assembly. paper boxes are known (see the Patent Office Bulletin Collection of Commonly Used Techniques (Sequel: Packaging Industry) published on February 24, 1981).

However, this paper box that can be folded and assembled freely,
Since the tongue connecting parts are provided at the four corners, a large amount of paper is used, and because the tongue connecting parts are folded inward at the upper edge of the side plate, the side plate bulges outward, which is a problem with the appearance. In addition, it is easy to return even if the folded part is unfolded when disposing of it, and it is difficult to flatten.

The purpose of this invention is to solve the above-mentioned problems by creating a box with glue on the four corners, which has strong corners, and when it is time to dispose of it, the two side walls can be easily broken with a single touch of a finger, and the box can be flattened. The purpose of the present invention is to provide a four-corner box that can be easily disassembled.

[Means for Solving the Problems] The present invention provides a single blank in which flaps are extended at both ends of each side plate connected to both sides of the bottom plate, and end plates are connected to the other both sides of the bottom plate. In a box to be assembled from sheets, slits are provided inward from both ends of the boundary between the end plate and the bottom plate, and intermittent cutting lines are provided from each end of the slit to the upper edge of the end plate.The side plate of the blank sheet is stood up. This is a box with four corners that can be easily disassembled, which is made by folding the end plates with the flaps inside and gluing the flaps to the parts outside the intermittent cutting lines provided on the end plates.

[Example] An example of the present invention will be described with reference to the drawings.

FIG. 1 is a plan view showing an example of a blank sheet of a four-corner box that is easy to disassemble according to the present invention. Side plates 2, 2 are connected to both sides of the bottom plate 1, and flaps 3, 3, 3, 3 extend from both ends of the side plates 2, 2, respectively.

On the other hand, end plates 4, 4 are provided in series on the other both sides of the bottom plate 1, and slits 6, 6, 6, 6 are provided inwardly from both ends of each boundary between the end plates 4, 4 and the bottom plate 1. , 6, 6, 6 from the inner end to the upper edge of the end plate 4 with an intermittent cutting line 5 (perforation in this case)
Create a blank sheet with Intermittent cutting lines may be regular perforations or zippers.
To assemble this box, stand up the side plates 2, 2, fold the flaps 3, 3, 3, 3 at the four corners inward, fold the end plates 4, 4 over these, and insert the intermittent The end plate 4 that overlaps at the outside of the cutting line 5,
4 and the flaps 3, 3, 3, 3 are adhered with adhesive and assembled as shown in FIG. Figures 1 and 2
Reference numeral 1 shown in the figure is a notch at the corner of the flap 3.

When disassembling this box, as shown in Figure 3, two cuts 7 and 7 formed by flaps 3 and
When you put your finger on it and pull it toward you, the central part of the end plate 4 is peeled off from the cutting lines 5, 5, and when it reaches the slits 6, 6, the flaps 3, 3 and the cutting line 5, The outer part of 5 opens outward together with the side plates 2, 2, allowing the box to be flattened.

[Effects of the invention] The easily disassembled four-corner box of the present invention has the above-mentioned configuration, and can be easily flattened by pulling the upper edge of the end plate by hand, making it easy to dispose of.

Since the four corners are glued during transportation,
Even if the product has strength and has intermittent cuts, the inner flaps at the four corners are bonded to the end plates and support the weight of the product, which prevents stress from concentrating on the intermittent cuts. It has the effect of alleviating the

[Brief explanation of the drawing]

Fig. 1 is a plan view showing a blank sheet according to an embodiment of the present invention, Fig. 2 is a perspective view of the blank sheet shown in Fig. 1 assembled into a box, and Fig. 3 is a box when disposing of the box of the present invention. FIG. 3 is a perspective view showing the movement of each part. 1...Bottom plate, 2...Side plate, 3...Flap, 4
...Gable plate, 5...Intermittent cut portion, 6...Slit, 7...Notch.

Claims (1)

[Scope of utility model registration request] In a box assembled from one blank sheet with flaps extending from both ends of each side plate connected to both sides of the bottom plate, and end plates connected to the other both sides of the bottom plate, the boundary between the end plate and the bottom plate is Slits are provided inward from both ends of the blank sheet, and intermittent cutting lines are provided from each end of the slits to the upper edge of the end plate.The side plates of the blank sheet are set up, and the end plates are folded with the flaps inside, and the end plates are folded together. A four-corner box that can be easily disassembled by gluing the flap to the outside of the intermittent cut line.