JPH0617694Y2 - Packaging box - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to a packaging box in which an opening surface of a box body has a solid two-layer structure and the opening surface can be easily locked.

[Problems to be solved by the device]

Conventionally, a cushioning material has been packed in the box body in order to prevent damage to the stored products, but the impact material cannot exert the effect unless the box body is rigid. The applicant of the present application, in the previous application (Japanese Patent Application No. 63-46418 and Japanese Patent Application No. 64-354), has developed a new box body that is made solid by forming the box body in double with an air layer. Although it has been provided, a new problem that the closing of the lid and the opening of the bottom cannot be performed smoothly can be considered. Therefore, the applicant of the present application has a structure in which the outer lid piece and the outer bottom piece can be housed and locked in Japanese Patent Application No. 1-17408, but the present invention can lock the lid portion and the opening portion of the bottom portion to smoothly close the block. It provides a packaging box that can be used.

[Means for Solving the Problems]

For this reason, the present invention is a packaging box in which at least the opening of the lid or the bottom is bent to form two layers with a space therebetween, and a pair of outer body pieces arranged in parallel form an outer side serving as a lid plate or a bottom plate. The closure piece is provided with a flap continuously connected to the other pair of outer body pieces, and the inner closure piece serving as the inner closure surface is provided continuously with the outer closure piece and the flap through the height interval piece, and the inner cover piece is also provided. Constituent pieces such as an adhesive piece or an inner body piece are continuously provided, and a series of engagement holes K are provided through the flaps and the height interval pieces in the widthwise central portion thereof, and continuously provided to the respective outer closing pieces. Inserting pieces that do not connect the inner closing pieces to each other are formed on both sides of the height interval piece, and are connected to the outer body piece by a notch that extends from the outer body piece to the engaging hole portion at the center of one or both flaps. The engaging tongue piece is formed by cutting and raising, and by bending the insertion piece of the outer blocking piece into the engagement hole K on the flap side. Is inserted arrangement has a configuration that can lock the two layers opening by engaging the insertion piece each at the locking tongue.

[Action]

Due to the bending, the inner closing surface composed of the inner closing piece is arranged on the inner surface side of the outer closing piece and the flap via the height interval piece to form a two-layer structure, and the other side is formed on both sides of the pair of inner closing pieces that face each other. The inner closure pieces are placed at a right angle to form a solid lid or bottom opening. In addition, the insertion pieces connected to the opposing outer closing pieces are inserted into the engagement holes formed through the flaps on both sides, and the inner closing pieces are at right angles when locked to each other. Will be placed. Further, since the both side insertion pieces of the outer closing piece accommodated in the engagement hole are locked by the insertion of the cut-and-raised locking tongue pieces, the disengagement thereof is prevented. According to the second aspect of the present invention, by bending, the inner body pieces are arranged inside the respective outer body pieces with a space layer formed by the lateral space pieces, and the height space pieces are arranged above the outer bottom piece and the bottom flap. The inner bottom piece is arranged with a space layer, and the inner lid piece is arranged below the outer lid piece and the lid flap with a space layer formed by the height interval pieces. That is, the inner box surface formed by the inner body piece, the inner lid piece, and the inner bottom piece is separated from each other in the outer box body formed by the outer body piece and the outer lid piece, the lid flap, the outer bottom piece, and the bottom flap. A box body is provided with a space layer depending on the width interval of the pieces, and the outer lid piece and the outer bottom piece are locked by the locking tongues on both sides of the box body.

【Example】

Hereinafter, details of the present invention will be described with reference to illustrated embodiments. The corrugated cardboard packaging box of the present example shown in FIGS. 1 and 2 is a two-layered box body having an opening portion with a lid portion and a bottom portion with an air layer in between. As for the formation, as in the developed state of FIG. 3, the outer body pieces 1 in the longitudinal direction and the outer body pieces 2 in the width direction are alternately juxtaposed through the folds A, and one of the pair of outer body pieces 1 is formed. The outer lid piece 3 is provided on the upper side through the fold B, and the lid flap 4 is continuously provided on the other pair of outer body pieces 2, and the outer flap piece 3 is placed under each outer body piece 1 through the fold C. A bottom piece 5 and a bottom flap 6 are continuously provided below each outer body piece 2. In addition, height-spaced pieces 7a and 7b having the same width are continuously provided to the outer lid piece 3 and the lid flap 4 through folds D, and the inner lid pieces 8 and 9 serving as the inner top surface are folded. The height interval pieces 7a and 7b are connected to each other via E, and the inner cover pieces 8 and 9 are folded to form a fold F.
The lid-bonding pieces 10 and 11 are arranged in series via the. On each of the outer bottom piece 5 and the bottom flap 6, height interval pieces 12 of the same width are continuously provided via a fold H, and then inner bottom pieces 13 and 14 via a fold I and an inner shell via a fold J. Pieces 15 and 16
A laterally spaced piece 17 of the same width is provided through the fold T, a first adhesive piece 18 is provided through the fold M, a reinforcing piece 19 is provided through the fold N, and a second adhesive piece 20 is provided through the fold P. The third adhesive piece 21 is sequentially connected through the cut fold R. Reference numeral 20a denotes a cutout hole provided to the central portions of the second adhesive piece 20 and the third adhesive piece 21 on the flap continuous side, and communicates with the engagement hole K. The reinforcing piece 19 has a width that is shortened by the width of the spacing piece 17 and the plate thickness, and the upper and lower spacing pieces 7a, 7b, 1
2 has the same width. In addition, reference numeral 18a denotes a clearance space for the lid-bonding pieces 10 and 11 which are provided in the first bonding piece 18 and are not provided. In this embodiment, the characteristic structure is that a series of engaging holes K are provided in the widthwise central portions of the flaps 4 and 6 and the height-separating pieces 7b and 12 thereof, and the engaging portions K are engaged from the upper part of the outer body piece 2. By forming a parallel cut Qa reaching the central portion of the flaps 4, 6 to the joint hole K and a cut Qb connecting the cut ends, the locking tongue 2a connected to the outer body 2 is cut and raised. At the same time, an engaging groove 2b that is open at the end is cut out in the center of the locking tongue 2a. Further, the height interval pieces 7a, 1 of the outer lid piece 3 and the outer bottom piece 5 respectively.
Insertion pieces 7c and 12a are formed by not connecting the inner closing pieces 8 and 13 to both side portions of 2, and engaging grooves 7d and 12b opening at the open ends thereof are formed along the folds D and H, respectively. It is provided on the insertion pieces 7c and 12a. Next, the assembly of this example will be described. First, as shown in FIG. 6 and FIG. 7, the lid adhesive pieces 10 and 11 are bent from the developed state at the folds B, D, E, and G, respectively. It adheres to the inner surface upper end part of the pieces 1 and 2. Then each fold H, I, J, T, M,
The first adhesive piece 18 is bent by N, P, and R to adhere the first adhesive piece 18 to the inner surfaces of the outer body pieces 1 and 2, and the second adhesive piece 20 is attached to the inner body piece 15,
It is adhered to the lower part of the outer surface of 16, and further the third adhesive piece 21 is adhered to the outer bottom piece 5 or the bottom flap 6. As a result, the engaging holes K are opened at the upper and lower ends and are in a developed state as shown in FIGS. 4 and 5, and are bent at the fold A as shown in FIG. The gluing margin piece 1a is fastened to the open side edge of the adjacent outer body piece 2, and the seam of the outer bottom piece 5 is fastened with an adhesive tape. Then, as shown in FIGS. 8 and 9, the locking tongue piece 2a is raised, whereby the cut-and-raised void portion and the engagement hole K communicate with each other (see FIGS. 2 and 9). Outer lid piece 3, Outer bottom piece 5
It suffices to close the plug and insert the insertion pieces 7c and 12a into the engaging holes K communicating with each other. Then, as shown in FIG. 10, the locking tongue piece 2a is inserted into the insertion piece 7
By inserting the engaging tongue pieces 2a into the engaging grooves 7d and 12b of the c and 12a, the engaging tongue pieces 2a are inserted into the inserting pieces 7c and 1b.
The engagement with 2a prevents the insertion pieces 7c and 12a from coming off. As described above, according to this example, the lid and the bottom, which are the openings, have a two-layer structure, and the insertion piece 7 of the outer lid piece 3 and the outer bottom piece 5 is formed.
Since the c and 12a can be locked by the locking tongue piece 2a, it is possible to prevent the outer lid piece 3 and the outer bottom piece 5 from rising and coming off.
It will be a smooth packaging operation. Needless to say, a tape may be attached to this opening line. In addition, the box body is formed by the spacing members 7a, 7b, 12, 17 with the outer body pieces 1, 2, the outer lid piece 3, the lid flap 4, the outer bottom piece 5, and the bottom flap 6 being spaced by an air layer from each other. 15, 1
6, the inner box surface on which the inner lid pieces 8 and 9 and the inner bottom pieces 13 and 14 are arranged is formed, and a strong packaging box having a double structure is formed. Further, in the inner box body, the inner top surface formed by the inner lid pieces is in an arrangement state in which the other inner lid piece 9 is arranged at a right angle on both sides of the pair of inner lid pieces 8 that face each other. In addition, the inner bottom surface formed by the inner bottom piece is also in a state in which the other inner bottom piece 14 is disposed at a right angle on both sides of the pair of inner bottom pieces 13 that are opposed to each other. It becomes the body. Due to this right-angled arrangement, even if one of the inner bottom pieces is damaged by the load of the contained heavy goods, the other inner bottom piece can well support the accommodated goods, and the strength of the box will be compromised even if it is reversed. It is easy to handle because there is no. In addition, in this example, since the reinforcing piece 19 is interposed between the inner body pieces 15 and 16 and the outer body pieces 1 and 2 at a substantially central portion, the second adhesive piece glued to the inner body pieces 15 and 16 is also used. Since 20 reaches the outer bottom piece 5 or the bottom flap 6, the inner body pieces 15, 16 and the inner bottom pieces 13, 14 are further strengthened to prevent deformation. Although this example is configured as described above, the present invention is not limited to this. For example, the locking structure using the locking tongue according to the present invention is not limited to being provided on both sides of the lid and the bottom as in the embodiment, and may be provided only on the lid or the bottom or for temporarily fixing one side of the lid or the bottom. It may be provided only. In this case, the width and length of the locking tongue are appropriate, and the locking state with the insertion piece is arbitrary, and the locking tongue may be configured as shown in FIG. Further, the insertion arrangement configuration of the engagement hole provided in the flap and the insertion piece continuous with the outer blocking piece is also appropriate. Further, the outer closing piece, the flap, the inner closing piece and the like do not have to be integrally connected to the outer body piece and the like, and a configuration in which separate materials are attached and connected may be used. The shape, width, and length of the outer blocking piece, the flap, the spacing piece, and the inner blocking piece do not matter. Further, the insertion arrangement configuration of the engagement hole provided in the flap and the insertion piece continuous with the outer blocking piece is also appropriate. Further, although it is not a gist, in the case of a relatively lightweight product, in this example, the first adhesive piece 18 may be consecutively provided.
And does not require a third adhesive strip. Further, regardless of the material of the packaging box, not only cardboard but also plastic or the like may be used.

[Effect of device]

Therefore, according to the present invention, the opening of the two-layer structure such as the lid can be easily locked by the locking tongue and the workability can be improved. You can do it. Further, according to the second aspect of the invention, a two-layer structure is formed in which the inner box surface is formed on the entire inner surface of the outer box body.

[Brief description of drawings]

FIG. 1 is an assembled perspective view of an embodiment of the present invention, FIG. 2 is a perspective view of the assembled state, FIG. 3 is a plan view of the developed state, FIG. 4 is a front view during the assembling, and FIG. FIG. 6 is a plan view of FIG. 4, FIG. 6 is an enlarged sectional view taken along line VI-VI in FIG. 5, FIG. 7 is an enlarged sectional view taken along line VII-VII of FIG. 5, and FIG. Fig. 9 is a longitudinal sectional view of the opened state, Fig. 9 is a longitudinal side view of Fig. 8, Fig. 10 is an enlarged perspective view of an essential part, and Fig. 11 is an enlarged sectional view of an essential part in a locked state by a locking tongue. FIG. 12 is a perspective view of another example of the locking tongue piece. 1, 2: outer body piece, 2a: locking tongue piece, 2b: engaging groove, 3: outer lid piece, 4: lid flap, 5: outer bottom piece, 6: bottom flap, 7a, 7b, 12: height Spacing piece, 7c, 12a: insertion piece, 7d, 12b: engagement groove, 8, 9: inner lid piece, 10, 11: lid portion adhesive piece, 13, 14: inner bottom piece, 15, 16: inner body piece , 17: lateral spacing piece, 19: reinforcing piece, 18: first adhesive piece, 20: second adhesive piece, 21: third adhesive piece, A, B, C, D, E, F, G, H, I. , J, T, M,
N, P, R: Folds Qa, Qb: Notches.

Claims (2)

[Scope of utility model registration request] 1. A packaging box in which at least an opening portion of a lid portion or a bottom portion is bent to form two layers with a space therebetween, and one pair of outer body pieces arranged in parallel form an outer closure that serves as a lid plate or a bottom plate. A pair of flaps are connected to the other pair of outer body pieces, and an inner closure piece serving as an inner closure surface is connected to the outer closure piece and the flap through a height interval piece and is bonded to the inner lid piece. One piece or an inner body piece or the like is continuously provided, and a series of engagement holes K are provided at the center portion in the width direction of each flap and its height interval piece.
Inserting pieces that do not connect the inner closing pieces to each other are formed on both sides of the height interval pieces that are connected to the respective outer closing pieces, and one or both flaps have their outer body piece to the engaging hole portion at the center part. It is formed by cutting and raising a locking tongue continuous with the outer body piece by straddling the notch, and by inserting the insertion piece of the outer closing piece into the engagement hole K on the flap side by bending, the locking tongue is also formed. A packaging box characterized in that a two-layer opening can be locked by locking each insertion piece with one piece. 2. Outer body pieces 1, 2 are arranged side by side, an outer lid piece 3 as an outer closing piece on one pair of outer body pieces 1, and a lid flap on the other pair of outer body pieces 2. 4 are connected in series, an outer bottom piece 5 is arranged below each outer body piece 1, and a bottom flap 6 is arranged below each outer body piece 2 to form an outer lid piece 3 and a lid flap 4 respectively.
The inner cover pieces 8 and 9 as the inner closed pieces serving as the inner closed surfaces are continuously provided via the height interval pieces 7a and 7b, and the adhesive pieces 10 and 11 are continuously provided to the inner cover pieces 8 and 9. , Each bottom piece 5
And inner bottom pieces 13 and 14 to be the inner bottom surface are continuously provided to the bottom flap 6 via height spacing pieces 12, and the inner bottom pieces 13 and 14 are respectively provided.
The inner body pieces 15 and 16 which stand upright to serve as inner wall surfaces are continuously provided, and the inner body pieces 15 and 16 are respectively provided with the adhesive pieces 18 via the laterally spaced pieces 17, and further, the respective lid flaps 4 are provided. , A series of engaging holes K are provided in the center of the bottom flap 6 and the height-separating pieces 7b, 12 in the width direction, and the notches arranged in parallel from the upper part of the outer body piece to the engaging holes K and the notches. Locking tongues 2a, which are connected to the outer body piece 2, are cut and formed by making a notch that connects the ends, and both sides of the height interval pieces 7a and 12 of the outer lid piece 3 and the outer bottom piece 5 are formed. The insertion pieces 7c, 12a are formed by not connecting the inner closing pieces 8, 13 in series,
The inner case pieces 15 and 16 and the inner cover pieces 8 and 9 are provided inside the outer box body formed by the outer body pieces 1 and 2, the outer lid piece 3, the lid flap 4, the outer bottom piece 5 and the bottom flap 6 by assembly. The packaging box according to claim 1, wherein an inner box body formed with the bottom pieces 13 and 14 is provided via a space layer having a width interval of the spacing pieces 7a, 7b, 12 and 17.