JP2001031074A - Main body-lid integrated type carton - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely close the opening of a carton main body by covering it from the outside by integrating the carton main body and a lid body by connecting the rear plate of the carton main body and the lid folding-back plate of the lid body through a folding back line, in a carton equipped with the carton main body and the lid body. SOLUTION: This main body-lid integrated type carton is equipped with a carton main body 10 having an opening at the upper end, and a lid body 20 which is openably attached to the opening through a hinge line x. In the lid body 20, a lid folding back rear plate 21a is connected to a lid rear plate 21. By bending the lid body 20 inward at the hinge line x after folding back the lid folding back rear plate 21a outward at a folding back line r, the opening of the carton main body 10 is covered and closed. The connection between the carton main body 10 and the lid body 20 comprises three locations, which are between the rear plate 11 and the lid folding back rear plate 21a through the folding back line r, a carton main body engaging piece 13a and a lid body engaging piece 23a through a cutting line y, and a gluing section piece 15 and a lid folding back piece 25a through a folding back line t.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carton in which an upper portion of a carton body is covered with an openable and closable cover to close an opening of the carton body, and more particularly to a carton in which the cover is held in a closed state. The present invention relates to a carton with a built-in lid. .

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7A, for example, a carton body 10 having an opening at an upper end, and a carton body 10 connected to the carton body 10 through a hinge line x.
A carton C having a lid 20 which is openably and closably covered from the outside from above and which closes the opening is generally known as a flip-top carton. As shown in FIG. 7B, the carton body 10 has an opening at the upper end, and a lid 20 that is attached to the carton body 10 via a hinge line x so as to be openable and closable and closes the opening. Carton D is commonly known as a hinged lid carton.

[0003]

However, the conventional flip-top carton has a structure in which the opening of the carton body and the lid are connected by a zipper or perforation, so that it is difficult to open the carton at the time of opening. However, there are problems such as the fact that traces of breakage remain, and that the cutting line is not neatly broken, which hinders reclosability. Also,
The hinge lid carton is a form in which the carton is assembled while filling the contents, and has a problem that a dedicated high-speed filling and packaging machine is required.

The present invention has been made in view of such a situation, and the carton body and the lid are connected by simple wrapping and sticking without being connected by a zipper or a perforation, so that the carton body and the lid can be opened at the time of opening. Since it does not break and open, it has an excellent appearance, it can be securely closed with a simple structure by covering the opening of the carton body from the outside, and the lid part closes the opening of the carton body An object of the present invention is to provide a main body cover-integrated carton having an engagement mechanism having a simple structure capable of securely holding the cover when the cover is closed.

Furthermore, when packing and filling the contents,
Since one flat blank is supplied in a folded shape to be packed and packed, a special filling and packaging machine is not required, and a conventional filling and packaging machine can be used.

[0006]

According to the present invention, there is provided a carton body having an opening at an upper end, and the carton body being attached to the carton body via a hinge line so as to be openable and closable. In a carton having a lid that covers and closes the opening from the outside, a rear plate, a side plate,
The carton main body is a cylindrical body composed of a front plate, a side plate, and a bottom plate, and a lid rear plate, a lid side plate, a lid front plate, a lid side plate, and a top plate in which a lid folded plate is connected to the lower side via the hinge line. The main body lid-integrated carton, wherein the lid is connected to the rear plate of the carton main body and the lid folded plate of the lid via a folding line.

[0007] Further, a notch is provided in an upper portion of the side plate on the rear plate side, the height of the front plate is lower than the height of the side plate, and the upper end of the side plate on the front plate side is rounded. It is characterized by having done.

Further, an engagement mechanism is provided between the upper end outer surface of the carton main body and the lower end inner surface of the lid so as to engage with each other when the opening is closed by the lid to maintain the closed state. Wherein the engaging mechanism is provided with a main body engaging piece at an upper end of the front plate of the carton main body, and a lid engaging piece is provided at a lower end of the lid front plate of the lid body. When the openings are closed by the body, they are engaged with each other to maintain the closed state. The main body engaging piece and the lid engaging piece are connected by a cutting line having a jumper before the carton is assembled.

According to the present invention, the carton body and the lid are not connected by a zipper, a perforation or the like, but are simply connected by wrapping and sticking, so that the carton body and the lid are not broken and opened at the time of opening. Therefore, the appearance is excellent, and the opening of the carton body can be securely closed from the outside with a simple structure, and further, when the opening of the carton body is closed with the lid, the lid And a main body cover integrated carton having an engagement mechanism having a simple structure capable of holding the cover in a closed state.

Furthermore, when packing and filling the contents,
Since the packing shape can be supplied by supplying a folded shape of one flat blank, a conventional filling and packaging machine can be used without requiring a special filling and packaging machine.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings, in which the same or similar parts are denoted by the same reference numerals throughout the several drawings.

FIG. 1 shows an embodiment of a first embodiment of a carton with a built-in lid according to the present invention. This carton A with a built-in main body cover has a rectangular carton body having an opening at an upper end. 10 and a cover 20 attached to the opening of the carton body 10 so as to be openable and closable via a hinge line x. The cover 20 covers the upper end of the carton body 10 from the outside and has an opening. Is to be closed.

The lid 20 has a lid-backed rear plate 21a connected to the lid-backed plate 21. After the lid-backed rear plate 21a is turned outward at a folding line r, the lid is turned at a hinge line x. By folding the inside 20 inward, the carton body 10 can be closed by covering the opening.

A carton main body engaging piece 13a of the carton main body 10 and a lid 20 side of the carton main body 10 are provided between an upper end outer surface of the front plate 13 of the carton main body 10 and a lower end inner surface of the lid front plate 23 of the lid 20. Is provided with a lid engaging piece 23a. When the opening is closed by the lid 20, the lid 20 can be held in a closed state by the engagement mechanism. it can.

FIG. 2 is a development view of a blank 1 of a carton A with a built-in lid, which is an embodiment of the carton with a built-in lid according to the present invention. In the carton body 10 of the blank 1, the rear plate 11, the side plate 12, the front plate 13, and the side plate 14 are continuously provided via the broken lines a, b, and c.
Adhesive margin pieces 15 are connected to the three side ends via broken lines d. Then, the glue margin piece 15 is adhered and fixed to the inner surface of the side plate 11 to form a rectangular cylindrical peripheral wall of the carton body 10.

A bottom plate 16 is connected to the lower end of the front plate 13 via a broken line e.
14, the lower tongue piece 17,
18 are connected to each other, and a bottom insertion piece 19 is connected to the lower end of the bottom plate 16 via a broken line h. The bottom portion of the carton body 10 is formed by bending the bottom tongue pieces 17 and 18, bending the bottom plate 16 outside thereof, and inserting the bottom insertion piece 19 inside. The type of the bottom portion is not limited to the insertion type, and may be a seal carton type in which a lower bottom plate is continuously provided at a lower end portion of the rear plate 11 and formed by bonding.

The front plate 13 has an upper end on the rear plate 1.
1, a side plate 12, lower than the side plate 14, and a carton main body engaging piece 13a is provided at an upper end portion through a broken line i.
Further, in the upper part of the side plate 12, a cut 12a is provided on the rear plate 11 side, and the corner on the front plate 13 side is rounded. Similarly, in the upper part of the side plate 14, a cut 14a is provided on the glue margin piece 15 side, and the corner on the front plate 13 side is rounded.

On the other hand, in the cover body 20 of the blank 2, the back cover plate 21, the cover side plate 22, and the cover front plate 2 are connected through broken lines j, k, and l.
3. The lid side plate 24 is continuously provided, and the front side plate 2 of the lid side plate 24
A glue margin piece 25 is continuously provided on the side end on the third side via a broken line m. Then, the adhesive margin piece 25 is adhered and fixed to the inner surface of the side plate 21 to form a rectangular cylindrical peripheral wall of the lid 20.

A top plate 16 is connected to the upper end of the lid front plate 23 via a broken line n.
At the upper end of 2, 24, the tongue piece 2 is inserted through broken lines o, p.
7 and 28 are connected in series, and a top insertion piece 29 is connected to the upper end of the top plate 26 via a broken line q. Then, the both tongue pieces 27 and 28 are bent, and the top plate 26 is bent to the outside thereof, and
Is inserted inside, thereby forming the top portion of the lid 20. The type of the top portion is not a plug-in type, but may be a seal carton type in which a bottom plate is continuously provided at the upper end of the lid rear plate 21 and formed by bonding.

The height of the front plate 23 of the cover 20 is increased corresponding to the front plate 13 of the carton body 10 which is lowered. Therefore, the lid side plate 22 and the lid side plate 24 are trapezoidal. Further, at the lower end of the lid rear plate 21, a lid folded back plate 21a is continuously provided via a hinge line x, and at the lower end of the front plate 23, the lid body engaging piece 2 is provided via a broken line s.
3a are continuously provided, and at the lower end of the lid glue surplus piece 25, a lid folded glue surplus piece 25a is continuously provided via a hinge line z.

The connection between the carton body 10 and the lid 20 is as follows.
In the blank state, the rear plate 11 and the lid folded back plate 21a are connected via the broken line r, the carton body engaging piece 13a and the lid engaging piece 23a are connected via the broken line y, and the glue margin piece 15 is connected via the broken line t. It is formed at three places with the lid folding back margin piece 25a. The folded line r and the hinge line x are preferably bent to be a lead rule since they are repeatedly bent. The cutting line y is connected to the blank and the folded state, and is provided with a jumper in a part so that the contents can be easily cut off after the contents are packed and filled. From this blank state, glue margins 15, 25 and 25a are
1, 21 and 21a are adhered and fixed to the inner surfaces and folded. Transportation and storage are performed in this folded state. After the contents are packed and filled, the cutting line y is cut, and the carton body engaging piece 13a and the lid engaging piece 23a are separated.

Next, the operation of the carton with integrated body lid according to the present invention will be described. When the cover 20 in the open state is closed as shown in FIG. 3 and the opening of the carton body 10 is to be closed, first, as shown in FIG.
Then, the lid folded plate 21a is folded outwardly. Next, as shown in FIG. 3B, the lid 20 is folded inward by the hinge line x, and as shown in FIG.
Can be covered and closed. At this time, due to the notches 12a and 14a on the rear plate side of the side plates 12 and 14, the upper portion of the rear plate 11 and the upper portions of the side plates 12 and 14 are bent inward, the openings are reduced, and the lid 20 is closed. The opening of the carton main body 10 is easily closed.

In the carton with integrated body cover according to the present invention, the cover 20 has an engagement mechanism for closing the opening of the carton body 10 and maintaining the closed state.
In this engagement mechanism, the carton main body engagement piece 13a and the lid engagement piece 23a act to hold the lid 20 in the closed state. Specifically, as shown in FIG. 3, the carton main body engagement piece 13a is folded back to the outer surface side of the front plate 13 along a broken line i, and projects obliquely downward with respect to the front plate 13. The carton main body engagement piece 13a has a broken line i
Due to the elastic force of the part, the front plate 1 can be pressed against the front plate 13 and brought into close contact with the front plate 13 if the pressing force is released.
3 to return to a state of projecting obliquely downward. On the other hand, the lid engaging piece 23a is folded back to the inner surface side of the lid front plate 23 by a broken line s, and projects obliquely upward with respect to the lid front plate 23.
3a is projected obliquely upward with respect to the lid front plate 23 when the pressing force is released even if the pressing force is released even if the pressing force is released even if the pressing force is released by pressing the lid front plate 23 side and bringing the lid front plate 23 into close contact with the lid front plate 23 due to the elastic force of the broken line s portion. It returns to the state where it did. Therefore, when the opening of the carton main body 10 is closed by the lid 20, the carton main body engaging piece 13a and the lid engaging piece 23a intersect, so that the lid 20 is held in the closed state.

Further, in this engagement mechanism, when the lid 20 is opened, the closed lid 20 is pulled up to open the crossed carton body engaging piece 13a and the lid engaging piece 23a. The lid 20 can be opened.

FIG. 5 is a perspective view showing an example of the second embodiment of the carton with a built-in lid according to the present invention, and FIG.
Is a development view of the blank 2. In the heat insulating container B according to the second embodiment, the adhesive margin pieces 15, 25, 25a are greatly extended as compared with the first embodiment, and the rear plates 11, 2
The size is almost the same as that of the first and second parts 21a and 21a.

In the heat insulating container B, the rear plates 11, 21, 21a
The adhesive margin pieces 15, 25, and 25a are overlapped on the back surface of the wire to increase the strength of the folded line r and the hinge line x, and the durability in the case of many bending is improved. On the other hand, by making it double, the folding line r and the hinge line x become difficult to bend. In order to solve this problem, as shown in the figure, the glue margin 25 and the glue margin
It is preferable to provide a hole u at a part of the return line t passing through 5a and a hole v at a part of the hinge line z via the glue surplus piece 25a and the glue surplus piece 15.

According to the second embodiment,
The same effect as that of the first embodiment can be obtained, and a main body cover integrated carton having high durability of the hinge line x of the cover body 20 can be obtained.

[0028]

As described above, according to the present invention, the carton body and the lid are connected by simple wrap-around without being connected by a zipper or a perforation, and the carton body and the lid are broken when opened. The appearance is excellent because it is not opened.

In addition, an engagement mechanism having a simple structure is provided, so that the opening of the carton body can be reliably closed by covering the opening from the outside.

Furthermore, when packing and filling the contents,
Since the packing shape can be supplied by supplying a folded shape of one flat blank, a conventional filling and packaging machine can be used without requiring a special filling and packaging machine.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a first embodiment of a main body cover-integrated carton of the present invention.

FIG. 2 is a development view showing the blank of FIG. 1;

FIG. 3 is a cross-sectional view showing a state in which a lid of the main body lid integrated type carton of FIG. 1 is opened.

FIG. 4 is a cross-sectional view showing a state in which a lid of the carton with a built-in lid of FIG. 1 is closed.

FIG. 5 is a perspective view showing an embodiment of the second embodiment of the main body cover integrated carton of the present invention.

FIG. 6 is a development view showing the blank of FIG. 5;

FIG. 7 is a perspective view showing an example of a conventional main body cover integrated type carton.

[Explanation of symbols]

A Carton with integrated body lid of the present invention (first form) B Carton with integrated body lid of the present invention (second form) C Conventional carton with integrated body lid (flip-top carton) D Conventional integrated body lid Carton (hinge lid carton) 10 Carton main body 11 Rear plate 12 Side plate 12a cut 13 Front plate 13a Carton body engaging piece 14 Side plate 14a cut 15 Glue margin 16 Bottom plate 17 Bottom tongue piece 18 Bottom tongue piece 19 Bottom insertion piece 20 Lid DESCRIPTION OF SYMBOLS 21 Back lid plate 21a Lid return plate 22 Lid side plate 23 Lid front plate 23a Lid engaging piece 24 Lid side plate 25 Lid adhesive margin piece 25a Lid folded piece 26 Top plate 27 Tenon tongue piece 28 Tenon tongue piece 29 Top insert piece a to q-fold line r, t-fold line s-fold line u, v punch hole x hinge line (rear plate) y cut line z hinge line (adhesive piece)

Claims (7)

[Claims] 1. A carton body having an opening at an upper end;
A back plate, a side plate, a front plate, a side plate, and a bottom plate, comprising: a lid body that is attached to the carton body via a hinge line so as to be openable and closable, and that covers and closes the opening of the carton body from the outside. The carton body of a cylindrical body consisting of, a lid rear plate, a lid side plate, a lid front plate, a lid side plate and a lid plate made up of a top plate, in which a lid folded plate is connected to the lower side via the hinge line, A carton with an integrated body cover, wherein the back plate of the carton body and the cover folded plate of the lid are connected via a folding line. 2. The carton with an integral body cover according to claim 1, wherein a cut is provided in an upper portion of the side plate on the side of the rear plate. 3. The carton according to claim 1, wherein the height of the front plate is lower than the height of the side plate. 4. The main body cover integrated carton according to claim 3, wherein an upper end of the side plate on the side of the front plate is rounded. 5. An engagement mechanism, which is engaged between an upper end outer surface of the carton main body and a lower end inner surface of the lid when the opening is closed by the lid to maintain the closed state. The main body cover integrated carton according to any one of claims 1 to 4, wherein the carton is provided. 6. The engaging mechanism includes a main body engaging piece provided at an upper end of the front plate of the carton main body, and a lid engaging piece provided at a lower end of the lid front plate of the lid body. The main body cover-integrated carton according to claim 5, wherein when the openings are closed, they are engaged with each other to maintain the closed state. 7. The main body cover according to claim 6, wherein the main body engaging piece and the lid engaging piece are connected by a cut line having a jumper before the carton is assembled. Integrated carton.