JPH06342Y2 - Packaging box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a packaging box for storing medicines, confectioneries, and other various products.

(Prior Art) A rectangular parallelepiped packaging box for accommodating a drug or the like is usually formed by bending cardboard and pasting the overlapped portions. In such a packaging box, even after the contents outlet is opened once, the contents outlet opened to store and store the contents until the contents such as medicines are completely consumed. It is desirable to be able to occlude For this reason, conventionally, the outlets for the contents formed at the edges of the front surface, the back surface, and the left and right side surfaces are covered with a flap that is continuously provided on either the front surface or the back surface. A configuration is adopted in which an insertion piece is provided at the tip of the and the insertion piece is inserted between the side edge of the flap continuously provided on each of the left and right side surfaces and the back surface or front surface where the flap is not formed.

However, in the case where the flaps are provided on either the front surface or the back surface and the three surfaces on each side in this way, the packaging piece is passed through between the insertion piece and the back surface or the front surface overlapping with the insertion piece in a sealed state. It is possible to mix foreign matter into the box. Even if the entire packaging box is wrapped with a transparent wrapping paper, it is extremely easy to cut the wrapping paper so that the insertion piece and the back surface or the front surface communicate with each other. In addition, even if foreign matter is mixed into the packaging box, the packaging box maintains the sealed state in which the insert piece is inserted, and thus there is a problem that it is difficult to find a trace of the foreign matter.

For this reason, a packaging box has been developed in which flaps are continuously provided at the edges of the front, back, and left and right sides on the side of the content outlet, and the front flaps and back flaps that are overlapped are glued together.

In such a four-sided flap packaging box, the glued flaps can be peeled off, or the flaps shown in FIGS.
As shown in the figure, a back flap glued to the front flap 41 and a continuous portion of the back surface 32 are provided with perforations, and by cutting the back flap 42 along the perforations,
The content outlet is opened. Then, once the contents take-out port is opened, the side surface flaps are connected to the left and right side surfaces.
It is closed by locking 43 and 44 together. The side flaps 43 and 44 are the same as those in the packaging box shown in FIG.
The locking projection 43a protruding from the tip of one side flap 43 is locked by fitting into the slit 44a provided in the other side flap 44, and in the packaging box shown in FIG.
It is locked by engaging mutually parallel locking grooves 43b and 44b formed at the tips of the side flaps 42 and 43.

(Problems to be solved by the invention) However, the work of locking the side flaps 43 and 44 to each other is usually performed by the consumer of the product in the packaging box, and for the consumer, such side flaps are used. The locking work between 43 and 44 is troublesome and may not be performed. Further, after the content outlet is opened, the front flap 41 continuously provided on the front is in a state of being flipped upward even when the side flaps 43 and 44 are locked together.
It also has the drawback of being very ugly.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a packaging box that can easily open a content outlet and can close the once opened content outlet by an extremely simple operation. To provide.

(Means for Solving the Problem) The packaging box of the present invention is formed in a rectangular parallelepiped shape by the front surface, the back surface and each side surface, and the content take-out port is formed at one opening edge of each surface, Front flaps connected to the opening edges of the respective surfaces constituting the content outlet,
A packaging box having a back flap and a side flap, wherein the front flap is overlapped with the back flap folded inward and glued to close the content outlet, and the end on the content outlet side of the back surface. A perforation provided on the back surface so that the portion is an insertion piece, and a pair of locking grooves provided on the base end portion of the back flap along each side edge thereof along the base end edge of the back flap. And a locking portion which is provided on the side edge of the side flap on the rear flap side and can be locked in each locking groove, thereby achieving the above object.

(Embodiment) An embodiment of the present invention will be described below.

FIG. 1 is a perspective view of a main part of the packaging box of the present invention seen from the back side, and FIG. 2 is a development view thereof.

The packaging box of the present invention has a rectangular parallelepiped shape with a front surface 11, a rear surface 12, and left and right side surfaces 13 and 14, and one end surface of the rectangular parallelepiped shape serves as a content take-out port, and the end surface is opened so that the content is Objects are taken out. As shown in FIG. 2, rectangular front flaps 21 and 22 which are slightly smaller than the content outlet are respectively connected to the respective edges of the front surface 11, and
Similar back flaps 23 and 24 are also connected to the respective edges of 12. In addition, the left and right sides 13 and 14
Also, rectangular side flaps 25, 26, and 27, 28, which are smaller than the front flaps 21 and 22, are connected to the respective edges of each of them.

A perforation 12a is provided at the end of the back surface 12 on the content outlet side. An end of the back surface 12 on the content take-out side of the perforation 12a is cut along the perforation 12a, and is inserted into the back flap 23 to form an insert piece 12b.
To form. Both ends of the perforation 12a are located at the contents outlet side end of each side edge on the back surface 12, and the center of the insert piece 12b formed is curved so as to form an arc. Has become.

A pair of locking grooves 23a extending from the side edges of the back flap 23 to the base edges of the back flap 23 are provided on each side of the base end of the back flap 23 arranged on the content outlet side. And 23a are provided.

Side flaps 25 and 27 arranged on the content outlet side
The side edges located on the back flap 23 side are provided with locking portions 25a and 27a, which slightly project from the continuous portion with the side surfaces 13 and 14 toward the back flap 23 side. The portions of the side edges of the back flaps 25 and 27 that are closer to the tip than the locking portions 25a and 27a are inclined so as to move away from the back flap 23 as they reach the tip. The side edges of the side flaps 25 and 27 on the front flap 21 side are in parallel with the side edges of the front flap 21 with a slight gap from the front flap 21 except for the base end portion. There is.

Each side flap 26 arranged on the side opposite to the content outlet
And 28 have side edges on the side of the back flap 24 on each side 13 and
The front side of the front flap 22 has a linear shape continuous to the side edges of the front side of the front flap 22. It is parallel to the side edges.

In the packaging box of the present invention, for example, in the unfolded state, the back surface 12 is located on one side as shown in FIG.
A margin 15 is provided on the side of 12. And back 12, side
Each of the concatenated portions of the front surface 14, the front surface 11 and the side surface 13 is bent and assembled into a rectangular parallelepiped shape, and the glue margin 15 is glued to the inner surface of the side surface 13 located on the other side portion.

In such a state, after folding the respective side flaps 26 and 28 at the opening end on the side opposite to the opening end on the content outlet side inward, and then folding the back flap 24 inward,
The front flap 22 is folded inward, and the back flap 24 and the front flap 22 are glued together. On the other hand, after storing the contents from the opening end on the contents outlet side in the state shown in FIG. 3, the side flaps 25 and 27 are folded inward, and then the back flap 23 is folded inward. later,
The front flap 21 is folded in and the back flap 23 and the front flap 21 are glued to each other for sealing.

When the contents are taken out, the end of the back surface 12 is cut along the perforations provided on the back surface 12 to form the insertion piece 12. Then, when the front flap 21 is rotated upward, as shown in FIG. 4, the rear flap 23 glued to the front flap 21 is rotated upward together with the insertion piece 12b to open the contents take-out port. It As a result, the contents are taken out from the opened contents take-out port.

When closing the content outlet with a part of the content taken out, the front flap 21 is rotated downward and the insertion piece 12b integrated with the front flap 21 is attached to the end of the rear surface 12. Insert the insertion piece 12b in the inside of the separated portion. At this time, when the tip end of the insert piece 12b is pushed so as to be positioned inside the rear surface 12, as shown in FIG. 5, each locking groove 23a formed in the vicinity of the insert piece 12b of the rear surface flap 23 has each side surface flap. Locking portions 25a and 27 of 25 and 27
Locked to a respectively. This allows the front flap 21
Does not rotate upwards, so the content outlet remains closed.

(Effect of the Invention) In the packaging box of the present invention, the content take-out port can be opened by the simple operation of cutting along the perforations in this way. Moreover, the engaging groove of the back flap is engaged with the engaging portion of each side flap by a simple operation of pushing the insert piece formed by the cutting into the inside of the back surface, so that the content outlet can be reliably blocked. You can

[Brief description of drawings]

FIG. 1 is a perspective view of a main part from the back side of a packaging box, which is an example of the present invention, FIG. 2 is an exploded view thereof, and FIGS. 3 to 5 are main parts from the back side for explaining respective operations. A perspective view, FIG. 6 and FIG. 7 are perspective views of a main part of a conventional packaging box. 11 ... front, 12 ... back, 12a ... perforation, 12b ... insert piece, 13,14 ... side, 15 ... glue allowance, 21, 22 ... front flap, 2
3,24 ... Rear flap, 23a ... Locking groove, 25, 26, 27, 28 ... Side flap, 25a, 27a ... Locking part.

Claims (1)

[Scope of utility model registration request] 1. A front surface, a back surface and side surfaces are formed in a rectangular parallelepiped shape, and a content take-out port is formed at one opening edge of each surface, and each surface constituting the content take-out port. Is a packaging box that has a front flap, a back flap, and a side flap that are connected to the opening edge of the front flap, and the back flap that is folded inward is overlapped with the front flap and glued to close the content outlet. A perforation provided on the back surface so that the end on the content outlet side of the back surface is used as an insertion piece, and the base end portion of the back flap from each side edge thereof to the base edge of the back flap. A packaging box, comprising: a pair of locking grooves provided along the above, and a locking portion which is provided at a side edge of the side flap on the back flap side and can be locked in each locking groove.