JPH0733817U - Packaging box - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a packaging box for packaging without using auxiliary materials such as tape. [Structure] The packaging box has a quadrangular bottom surface 1, and two sets of side surfaces 2-2 and 3-3 that are continuously provided on each side of the bottom surface 1 and face each other.
It is composed of flaps 4-4, 5-5 that are connected to these side surfaces 2-2, 3-3 and are bent over the packaged object, and protective surfaces 6 that protect the four corners of the packaged object. The flap 4-4, which is bent first during packaging, is provided with locking pieces 4a-4a for engaging at the center of the upper surface of the packaged object. Further, the flaps 5-5 are provided with insertion pieces 5a-5a which are inserted between the flaps 4-4 when the flaps 5-4 are bent to the upper part. The protective surfaces 6 at the four corners are folded into the side surfaces of the package when the side surfaces 3-3 are raised. Reference numeral 7 is a fold line for facilitating bending.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to the structure of a packaging box made of corrugated cardboard or the like.

[0002]

[Prior art]

 A packaging box made of, for example, corrugated cardboard is used for packaging a small article (package). FIG. 4 shows a typical packaging box thereof. There are an A type as shown in (a) and a B type as shown in (b). The type A type has a bottom surface 11, two pairs of side surfaces 12-12, 13-13, which are connected to each side of the bottom surface 11 and are opposed to each other, and are connected to each of the side surfaces 12-12, 13-13. It consists of two sets of flaps 14-14, 15-15 that are folded over the top of the package. In the case of the B type, the bottom surface 11a, two pairs of side surfaces 12a-12a and 13a-13a, which are connected to each side of the bottom surface 11a and are opposed to each other, are connected to one of the side surfaces 12a. It has an upper surface 14a which is placed on the upper part of the upper surface and a flap 15a which is connected to the tip of the upper surface 14a and is pushed between the other side surface 12a and the packaged object.

[0003]

[Problems to be solved by the device]

 However, the packaging box configured as described above is not useful as it is.For example, in order to raise the sides to form a box, adhesives that connect the sides at the four corners are required, or the folded flaps are taped. It was necessary to use auxiliary materials, and it was time-consuming and costly. Therefore, it is an object of the present invention to provide a packaging box that can be packaged without using auxiliary materials such as adhesives and tapes.

[0004]

[Means for Solving the Problems]

 The present invention has been made to solve the above-mentioned problems, and includes a bottom surface, two sets of side surfaces connected to each side of the bottom surface and facing each other, and a pair of side surfaces connected to each of the side surfaces of the packaged object. It consists of two sets of flaps that are bent upwards, and a pair of facing flaps is provided with a locking piece that engages at the center of the upper surface of the packaged object, and the other pair of facing flaps have tips. An insertion piece to be inserted between the pair of flaps is provided, and the locking piece is engaged at the center of the upper surface of the packaged object at the time of packaging, and then the other insertion piece of the pair of flaps is placed first. It was inserted between a pair of folded flaps.

[0005]

[Action]

 In the case of the above configuration, the locking pieces provided on the pair of opposed flaps are engaged with each other at the center of the upper surface of the package, and the insertion pieces provided on the other pair of opposed flaps are engaged. The package can be packaged simply by inserting the piece between the pair of flaps that are bent first.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a packaging box before assembly. This packaging box has a quadrangular bottom surface 1 on which the object to be packaged is placed, and two sets of the bottom surface 1 which are connected to each side and face each other. Sides 2-2 and 3-3, flaps 4-4 and 5-5 that are respectively connected to these side faces 2-2 and 3-3 and are bent at the top of the packaged object, and the four corners of the packaged object. And a protective surface 6 integrally provided at the side end portions of the side surfaces 2-2 and 3-3 for protecting the respective sides, and the flaps 4-4 are engaged with each other at the central portion of the upper surface of the packaged object. Locking pieces 4a-4a are formed so that the tip of the other pair of flaps 5-5 can be inserted between the pair of flaps 4-4 engaged as shown in FIG. Inserted pieces 5a-5a are formed.

In addition, the bottom surface 1, the side surfaces 2-2, 3-3, the flaps 4-4, 5-5, and the respective boundary lines forming the protective surfaces 6 at the four corners, and the tip of each protective surface 6 and the bottom surface 1 A fold line (perforation) 7 is provided on each of the lines connecting the four corners of. As shown in FIG. 2, the packaging box thus configured first raises the side surface 2-2 and folds the flaps 4-4 to the upper part of the packaged object 8. Then, the locking pieces 4a-4a provided on the flap 4-4 are engaged with each other at the central portion of the upper surface of the packaged object 8. Next, while raising the side surfaces 3-3 and folding the protective surfaces 6 at the four corners into the side surfaces of the packaged object 8, bend another set of flaps 5-5 to the upper part of the packaged object 8 and insert them. When the pieces 5a-5a are inserted between the pair of flaps 4-4 which are previously engaged with each other, the shape as shown in FIG. 3 is obtained, and the packaged object 8 can be packaged without tape stopper or the like. it can.

[0008]

[Effect of device]

 If the packaging box is as described above, the packaging box will not be easily unfolded if it is assembled in a predetermined manner.Therefore, auxiliary materials such as tapes are not required. In addition to contributing to cost reduction, the simple structure makes it easy to mechanize packaging, and the used packaging box can be reused because it returns to the original flat plate shape.

[Brief description of drawings]

FIG. 1 is an exploded view of a packaging box showing an embodiment of the present invention.

FIG. 2 is a perspective view showing an assembling procedure of the packaging box of the present invention.

FIG. 3 is a perspective view showing an assembled state of the packaging box of the present invention.

FIG. 4 is a perspective view of a conventional packaging box.

[Explanation of symbols]

 1 Bottom face 2 Side face 3 Side face 4 Flap 4a Locking piece 5 Flap 5a Inserting piece 6 Protective surface 7 Fold (perforation) 8 Packaged object (article)

Claims (3)

[Scope of utility model registration request] 1. A bottom surface, two sets of side surfaces that are connected to each side of the bottom surface and face each other, and two sets of flaps that are connected to each of the side surfaces and are bent over the packaged object.
An engaging piece that engages at the center of the upper surface of the packaged body is provided on the pair of opposed flaps, and an insert piece that is inserted between the pair of flaps is provided at the tip of the other opposed pair of flaps. Provided, after engaging the locking piece at the center of the upper surface of the packaged object at the time of packaging, insert the insertion piece of the other opposing pair of flaps between the pair of flaps that are bent in advance. A packaging box characterized by being. 2. A protective surface for protecting the four corners of the package is integrally provided between all adjacent side edges of the two sets of side surfaces, and each protective surface is folded into the side surface of the package during packaging. The packaging box according to claim 1, wherein 3. A fold line is formed on the bottom surface, two sets of side surfaces, each flap, on each boundary line forming each protection surface, and on a line connecting each projecting edge of each protection surface and each of the four corners of the bottom surface. The packaging box according to claim 1 or 2, which is provided.