JP2009107694A - Packaging carton - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging carton in which water produced by heating in a microwave oven can be easily vented from the upper part. <P>SOLUTION: A front face plate 11 and a back face plate 13 are continuously provided at a pair of two opposing sides of a bottom face plate 12, and outer side face plates 121 and 122 are continuously provided at another pair of two opposing sides. Inserting pieces 123 and 124 are continuously provided at end edges which are not continuously provided with the bottom plate of the outer side face plates, and connecting folding pieces 16, 17, 18 and 19 folded into approximately triangle shapes by diagonal valley folding lines c between the front face plate and the outer side face plates, and the back face plate and the outer side face plates. A top face plate 14 is continuously provided at the side which is not continuously provided with the bottom face plate of the back face plate, and a paste margin piece 15 is continuously provided at the side which is not continuously provided with the back face plate of the top face plate. Inner side face plates 141 and 142 are continuously provided at two opposing sides of the top face plate, and slits b and b into which inserting pieces are inserted are formed at folding lines. The inner side face plates are made shorter than the outer side face plates to form spaces between the inner side face plates and the bottom face plate, and the paste margin piece and the front face plate are fixed and the inserting pieces are inserted into the slits to close the inner side face plates and the outer side face plates. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a wrapping paper box formed from a single blank, in particular, containing sugar beet that is a food to be heated in a microwave oven, and water vapor generated during cooking in a microwave oven from the top. The present invention relates to a wrapping paper box that is easily pulled out.

  In recent years, along with the popularization of household microwave ovens, for example, products that allow cooking to be cooked in a microwave oven while being stored in a paper box for packaging such as frozen food have been distributed.

  And the paper box which accommodates frozen food employ | adopts the box which assembles a blank similarly to a general paper box. For example, a side plate is connected to the bottom plate at the top, bottom, left and right via a fold line, and connected folds that are connected to the side plate and can be folded in half by a diagonal fold line. It consists of a container body that is connected to each of the four corners and a lid plate that is connected to one of the side plates. When assembling this, the connecting folded piece is folded inward by a diagonal fold line. Further, there is known one that sticks the diagonal inner surface and sticks and supports one side inner surface of the folded folded folded piece to the inner side surface of the side plate facing this (for example, water tight bonding) (for example, , See Patent Document 1).

The said prior art document is shown.
Japanese Utility Model Publication No.4-1119.

  However, these paper boxes are formed with, for example, bent pieces, support pieces, etc. that interfere with the release of moisture generated from the stored items when heated in a microwave oven, such as bent pieces, support pieces, etc. There is a problem that it is difficult to produce a crispy heating state.

  The present invention has been made in view of the above-mentioned problems relating to a watertight pasted paper box that can be cooked by heating in a microwave oven, and moisture such as water vapor generated from stored items during cooking in a microwave oven can easily escape and be more crispy. It is an object of the present invention to provide a packaging paper box for cooking in a microwave oven that enables a heated state having a texture.

  In the first aspect of the present invention, a front plate and a rear plate are connected to two opposite sides of a square bottom plate, and an outer side plate is connected to the other two opposite sides of the bottom plate. The insertion piece is continuously connected via a fold line to the edge of the outer face plate where the bottom face plate is not continuously provided, and between the front face plate and the outer face plate, between the rear face plate and the outer face plate, A connecting folding piece folded in half in a triangular shape by a diagonal valley fold line is continuously provided via a fold line, and a top plate is continuously provided on the side of the rear plate where the bottom plate is not continuously provided. Adhesive strips are connected to the side where the rear plate of the face plate is not connected, the inner side plate is connected to the opposite two sides of the top plate, and the slit for inserting the insertion piece is Provided on the fold line that is the connecting part of the face plate and the inner side plate or on the inner side plate. The height of the inner side plate is the height of the outer side plate. It is set so that a space is created between the inner side plate and the bottom plate, and the back surface in the vicinity of both ends of the adhesive margin piece and the front surface of the corresponding front plate are bonded via adhesive paste, and the insertion piece is A wrapping paper box characterized by being inserted into a slit and closing an inner side plate and an outer side plate.

  Thus, according to the first aspect of the present invention, the front plate and the rear plate are connected to one opposite two sides of the square bottom plate, and the other two opposite sides of the bottom plate are outside. Inserting pieces are connected to the end edge of the outer face plate that is not connected to the bottom face plate via a fold line, and between the front face plate and the outer face plate, and between the rear face plate and the outer face plate. Is connected with a continuous folded piece that is folded in half by a diagonal valley fold line through a fold line, and a top plate is continuously provided on the side of the rear plate where the bottom plate is not connected. Adhesive strips are connected to the side where the rear plate of the top plate is not connected, and the inner plate is connected to the two opposite sides of the top plate, and the insertion piece is inserted. The slit is provided on the fold line that is the continuous part of the top plate and the inner side plate, or on the inner side plate, and the height of the inner side plate is outside It is shorter than the height of the plate and is set so that a space is created between the inner side plate and the bottom plate, and the back surface in the vicinity of both ends of the glue margin piece and the surface of the corresponding front plate are bonded via adhesive glue, Since the insertion piece is inserted into the slit and the inner side plate and the outer side plate are closed, the connected folding piece and the slit are all open upward, and there is a space between the bottom plate and the lower part of the inner side plate. Water content such as water vapor generated from the stored items during cooking in the microwave oven is easy to escape from the upper part of the paper box, and a stored item having a crispy texture can also be obtained by microwave cooking.

  According to a second aspect of the present invention, there is provided the packaging paper box according to the first aspect, wherein the height of the space formed between the inner side plate and the bottom plate is not more than ½ of the height of the outer side plate. It is.

  As described above, according to the invention described in claim 2, since the height of the space generated between the inner side plate and the bottom plate is set to ½ or less of the height of the outer side plate, there is little influence on the strength of the paper box, and stacking is performed. The shape of the paper box can be maintained even if it is.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the glue margin piece and the top plate are two halves reaching the top plate through the glue margin piece from the edge of the glue margin piece. The wrapping paper box is characterized in that the cut lines are provided symmetrically at regular intervals.

  In this way, according to the invention described in claim 3, two half-cut lines that pass through the adhesive margin piece from the edge of the adhesive margin piece and reach the top surface plate are spaced apart from each other at the glue margin piece and the top plate. Since the adhesive margin piece and the top plate connected to it are broken along two half-cut lines, the paper margin The top of the large opening.

  Thus, the wrapping paper box of the present invention is provided with all the connecting folded pieces and slits opened upward, and a space is provided between the bottom of the inner side plate and the bottom plate. Moisture generated from the stored items during cooking tends to escape upward in the paper box. Therefore, a stored item having a crispy texture can be obtained even by microwave cooking.

The present invention will be described in detail below based on one embodiment.
For example, as shown in FIGS. 1 and 2, the wrapping paper box of the present invention has a front plate (11) and a rear plate (13) connected to two opposite sides of a square bottom plate (12). The outer face plates (121, 122) are connected to the two opposite sides of the bottom face plate (12), and the edge of the outer face plates (121, 122) on the side where the bottom face plate is not connected. Are provided with insertion pieces (123, 124) via folding lines (a).

Further, between the front plate and the outer side plate, and between the rear side plate and the outer side plate, the connecting folded pieces (16, 17, 18, 18) folded in a substantially triangular shape by a diagonal valley fold line (c) via a fold line. 19) is continuously provided, and the top plate (14) is provided continuously on the side of the rear plate (13) where the bottom plate is not provided, and the rear plate is provided on the top plate (14). An adhesive margin piece (15) is continuously provided on the non-side.

  Inner side plates (141, 142) are connected to the opposite two opposite sides of the top plate (14), and slits (b, b) for inserting the insertion pieces are provided on the top plate (14) and the inner plate (141). 142) is provided on a fold line (a) that is a continuous portion with the inner side plates (141, 142).

  The height of the inner side plates (141, 142) is set to be shorter than the height of the outer side plates (121, 122) so that a space is created between the inner side plates (141, 142) and the bottom plate (12). Yes.

  The height of the inner side plates (141, 142) is at least half the height of the outer side plates (121, 122), and a space generated between the inner side plates and the bottom plate (12) when assembled into a paper box. (Gap) is set to be ½ or less of the height of the outer face plate.

  Then, the back surface in the vicinity of both ends of the adhesive margin piece (15) and the front surface of the corresponding front plate (11) are bonded via adhesive paste, and the insertion pieces (123, 124) are slit (b, b). The inner side plates (141, 142) and the outer side plates (121, 122) are locked and closed.

  The adhesive margin piece (15) and the top plate (14) have two half-cut lines (d) that pass through the margin margin piece (15) from the edge of the adhesive margin piece (15) and reach the top plate (14). , D) may be provided symmetrically at regular intervals.

  This packaging paper box is formed by assembling a blank (10) as shown in FIG. 1 with, for example, a normal four-corner box making machine. First, the blank (10) will be described.

  The front plate (11), the bottom plate (12), the rear plate (13), the top plate (14), and the adhesive margin piece (15) are connected in series in this order via the lateral folding lines (e). Yes. Outer side plates (121, 122) and insertion pieces (123, 124) are sequentially connected to the left and right ends of the bottom plate via vertical folding lines (f), respectively.

  Between the front plate (11) and the outer side plates (121, 122), connecting folding pieces (16, 17) connected to the adjacent bottom side plate and the front plate are provided via folding lines. The folded piece is a front plate flap (161) adjacent to the front plate (11) by a diagonal valley fold line (c) that bisects the connected folded piece at an angle of 45 degrees starting from each corner of the bottom plate (12). , 171) and outer face plate flaps (162, 172) adjacent to the outer face plates (121, 122).

  Between the rear face plate (13) and the outer face plates 121, 122), connected folding pieces (18, 19) connected to the adjacent outer face plate and the rear face plate are provided via folding lines, and each of the connecting folded pieces. Is a rear plate flap (181, 191) adjacent to the rear plate (13) by a diagonal valley fold line (c) that bisects the connecting folded piece at an angle of 45 degrees starting from each corner of the bottom plate (12). ) And outer face plate flaps (182, 192) adjacent to the outer face plates (121, 122).

  Inner side plates (141, 142) are connected to the two opposite sides of the top plate (14), and slits (b, b) for inserting the insertion pieces (123, 124) are provided. It is provided on the longitudinal fold line (f) or the inner side plate (141, 142), which is a continuous portion of the top plate (14) and the inner side plate (141, 142).

  In addition, the height of the inner side plates (141, 142) is shorter than the height of the outer side plates (121, 122), and when assembled into a paper box, the inner side plates (141, 142) and the bottom plate (12) are located between them. The gap is set to be generated.

  Next, an example of a procedure for assembling the blank (10) having such a structure into the packaging paper box (1) will be described.

  Front plate (11), bottom plate (12), outer side plate (121) located at left and right ends of rear plate (13), connected folded pieces (16, 18) and outer side plate (122), connected folded pieces (17, 19) along the longitudinal fold line (f), then the front plate (11) and the connecting folded pieces (16, 17) provided on the left and right ends thereof, the rear plate (13) and the left and right ends thereof. Each of the connected folded pieces (18, 19) is folded along a lateral fold line (e) via a bottom plate (12). Are folded along the diagonal valley fold line (c), the bottom plate (12) is the bottom plate, the front plate (11), the rear plate (13), and the outer side plates (121, 122) are the side plates, A container main body portion of a paper box in which a connecting folded piece is provided between the side plates is produced.

  Next, the top plate (14) and the adhesive margin piece (15) are bent along the lateral folding line (e), and the back surfaces of both ends of the adhesive margin piece (15) and the surface of the front plate (11) overlapping therewith are bonded. Attach the inner side plates 141, 142) along the vertical fold line (f) and assemble the folded body box lid part inside the container body and the outer side plate along the folding line (f). Then, the insertion pieces (123, 124) are bent, the slits (b, b) are inserted, and the assembly of the packaging paper box (1) in which the container main body portion is sealed is completed (see FIG. 2).

  Since the packaging paper box of the present invention has the above-described structure, water vapor generated from frozen foods such as fried potatoes, green soybeans, and deep-fried food during cooking by heating in a microwave oven is directed upward in the packaging paper box. Therefore, it is possible to obtain a stored product having a crispy texture even by heating in a microwave oven.

The assembled packaging paper box (1) can be opened by the following procedure, for example.
That is, if the glue piece (15) and the top plate (14) are provided with half-cut lines (d, d), the center part of the glue piece (15) is pinched and pulled outward. The glue margin piece (15) and the top plate (14) connected thereto are broken along the two half-cut lines (d, d), and the upper surface of the paper box is greatly opened.

  When the cut piece (d, d) is not provided in the adhesive margin piece (15) and the top plate (14), when the insertion piece (123, 124) is removed from the slit (b, b), When the outer side plates (121, 122) and the connecting folded pieces (16, 17, 18, 19) are opened, and then the inner side plates (141, 142) are raised, the paper box is opened.

It is plane explanatory drawing which shows one Example of the blank of the packaging paper box of this invention. FIG. 3 is a perspective explanatory view showing a state in which the blank of FIG. 1 is assembled in the packaging paper box of the present invention and the insertion piece is about to be inserted into the slit of the top plate. It is a fragmentary perspective explanatory view which shows the state which has inserted the insertion piece of the packaging paper box of FIG. 2 in the slit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Wrapping paper box 10 ... Blank 11 ... Front plate 12 ... Bottom plate 13 ... Rear plate 14 ... Top plate 15 ... Glue piece 16 ... Connected folded piece 17 ... Connected folded piece 18 ... ······················································································································································ ... Bottom side plate flap 171 ... Front side plate flap 172 ... Bottom side plate flap 181 ... Rear side plate flap 182 ... Bottom side plate flap 191 ... Rear side plate flap 192 ... Bottom side plate flap a ... Bending line b ... Slit c ... Diagonal valley fold line d ... Half cut line e ... Horizontal fold line f ...... Vertical fold line

Claims (3)

A front plate and a rear plate are connected to two opposite sides of a square bottom plate,
An outer face plate is continuously provided on the other two opposite sides of the bottom face plate, and an insertion piece is continuously provided on the end edge of the outer face face on which the bottom face plate is not continuously provided via a folding line,
Between the front plate and the outer face plate, between the rear face plate and the outer face plate, a connected folding piece folded in half in a triangular shape by a diagonal valley fold line via a fold line is continuously provided,
A top plate is connected to the side of the rear plate where the bottom plate is not connected,
Adhesive strips are connected to the side where the rear plate of the top plate is not connected,
On the other two opposite sides of the top plate, the inner plate is connected,
A slit for inserting the insertion piece is provided on the folding line that is a continuous part of the top plate and the inner side plate, or on the inner side plate,
The height of the inner side plate is set to be shorter than the height of the outer side plate so that a space is created between the inner side plate and the bottom plate,
The back surface in the vicinity of both ends of the adhesive margin piece and the surface of the corresponding front plate are bonded via adhesive paste, and the insertion piece is inserted into the slit to close the inner side plate and the outer side plate. Packaging paper box.   The packaging paper box according to claim 1, wherein the height of the space formed between the inner side plate and the bottom plate is not more than ½ of the height of the outer side plate.   The paste margin piece and the top surface plate are provided with two half-cut lines symmetrically provided at regular intervals through the glue margin piece and reaching the top surface plate from the edge of the adhesive margin piece. The packaging paper box according to claim 1 or 2.

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