JPH0433220Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a tamper-proof paper box that prevents the insertion of foreign substances such as poisonous substances and the extraction of contents.

(Prior art) In the past, tamper-proof paper boxes that prevented the insertion of foreign objects such as poisonous substances and the extraction of contents
The following packaging box disclosed in No. 61-113218 is known.

That is, as shown in FIG. 9, a side plate A1, an outer upper plate B, a side plate A2, a bottom plate D, a side plate A3, an inner upper plate E, and an adhesive piece F are arranged horizontally through each fold line, and the side plate A tongue piece C is attached to the front and rear sides of A1, A2, and A3 through the fold line, and a side plate H having a tongue piece J is attached to the front and rear sides of the bottom plate D through each fold line, and further on the front and rear sides of the inner upper plate E. A box development body is constructed in which the tongue pieces K are connected to each other through each fold line, and the outer upper plate B is stacked so that the inner upper plate E is on the inside, and the pasting piece F is glued to the side plate A2. , side plate A1 to side plate A3
After making it into a three-dimensional shape and storing the object to be packaged, each tongue piece C and tongue piece K are bent, and the tongue pieces K of the side plate H and the inner upper plate E are glued. In addition, a packaging box is disclosed in which a tongue piece J is inserted between the inner and outer upper plates B and E and bonded together.

(Problem to be solved by the invention) However, in this packaging box, it is possible to sequentially peel off the adhesive from the adhesive part between side plate A1 and side plate A3 and the adhesive part between side plate H and tongue piece K without tearing the paper. Therefore, it was not possible to sufficiently prevent the insertion of foreign substances such as poisonous substances and the extraction of contents.

In addition, when assembled into a box body, the front and rear sides of the inner and outer upper plates B and E were located at almost the same position, so it had the disadvantage that it was difficult to insert the tongue piece J between the inner and outer upper plates B and E. .

The purpose of the present invention is to provide a tamper-proof paper box that is easy to assemble, in which it is impossible to peel off the adhesive part without tearing the paper, which prevents the insertion of foreign objects such as poisonous substances and the removal of contents. There is.

(Means for Solving the Problems) In order to achieve the above object, the tamper-proof paper box of the present invention has the following configuration.

That is, at least one of the trunk forming walls forming the box trunk with both ends open is a double wall, and the both ends are closed by a lid connected to the trunk forming wall opposite to the double wall. In a paper box in which the opening is closed and an insertion piece connected to the lid is inserted and glued between the double walls, the insertion piece is made narrower than the lid width, and the insertion piece is made narrower than the lid width. An inner lid piece with an insert piece into which the piece is inserted is connected to the outer wall of the double wall, and the inner cover piece, which has an insert piece into which the piece is inserted, is provided on the inner wall of the double wall and the surface where the insert piece is overlapped. A recessed portion having a depth approximately equal to the thickness is formed, and the insertion piece is inserted through the insertion hole of the inner lid piece and adhered to the recessed portion.

(Example) Next, an example of the tamper-proof paper box according to the present invention will be described with reference to FIGS. 1 to 8.

FIG. 1 is a back view of the box in an unfolded state, and shows that the outer wall 1, side wall 2, rear wall 3, side wall 4, and inner wall 5, which form the trunk forming walls, are formed at each fold through a, b, c, and d. It is formed horizontally.

On the upper and lower sides of the outer wall 1, inner lid pieces 7 each having an insertion hole 6 for inserting an insertion piece 9 described later are arranged along the fold e, and on each upper and lower side of the side walls 2 and 4. A flap piece 8 is connected to the flap piece 8 via a fold f.

Further, on the upper and lower sides of the rear wall 3, a lid 11 is provided with an insertion piece 9 inserted into the insertion hole 6 connected to the lid 11 through a coarse perforation line 10, and is connected to the lid 11 through a fold g. An opening line 12 made of a perforation line whose center slightly penetrates into the rear wall 3 side is provided so as to coincide with one of the eyes g.

Further, a recess 16 is formed at the upper and lower edges of the inner wall 5 on the surface where the insert piece 9 is superimposed and bonded when assembling the box, and has a width of the insert piece 9 and a depth approximately equal to the thickness of the insert piece. The upper and lower sides of the inner wall 5 have a width slightly wider than the insertion piece that is connected to the fold h which is closer to the horizontal center line of the inner wall 5 than the fold i which is an extension of the fold f. a guide piece 13 and an adhesive tongue piece 14 connected to both sides of the guide piece 13 via a fold i, and the guide piece 13 and the adhesive tongue piece 1
The cut line 15 at the boundary with the fold line 4 is formed such that its cut ends protrude closer to the horizontal center line of the inner wall 5 than both ends of the fold h.

The unfolded product of the tamper-proof paper box according to the present invention having the above structure is obtained by folding the fold c into the state shown in FIG. 2 from the unfolded state shown in FIG. After applying the adhesive to the portion S of the inner wall 5 indicated by the two-dot chain line, fold the fold a into a valley and bond the outer wall 1 and the inner wall 3 together to form a double wall as shown in Fig. 4. At the same time, the inner lid piece 7 is adhered to the adhesive tongue piece 14 to complete a flat box.

This flat box is transported and stored as is, and is finally assembled when storing objects.

That is, the side walls 2 and 4 are raised from the flat state shown in FIG. 4 to form a box body P with both ends open as shown in FIG.
At the same time, fold this inner cover piece 7 inward at the crease e.
The guide piece 13 and adhesive tongue piece 14, which are overlapped with each other, are folded in from fold lines h and i (see FIG. 1), respectively.

Then, after folding the flap piece 8 onto the guide piece from the fold f and applying adhesive to the inner surfaces of the lid 11 and the insertion piece 9, the inner lid piece 7, which has already been folded,
The insertion piece 9 is inserted through the insertion hole 6 and adhered to the recess 16 of the inner wall 5, and the lid 11 is adhered to the inner lid piece 7 to close the lid, resulting in the state shown in FIG.

Next, after storing the object into the box body through the other opening, the other opening is closed in the same way as the one opening is closed.

That is, the upper inner cover piece 7 was folded inward at the fold e, and at the same time, the guide piece 13 and the adhesive tongue piece 14, which overlapped with the inner cover piece 7, were folded in at the fold lines h and i. After that, fold in the left and right flap pieces 8, and then remove the lid 11.
Apply adhesive to the inner surface of the insert piece 9, insert the insert piece 9 through the insertion hole 6 of the inner cover piece 6, adhere the cover 11 to the inner cover piece 7, and attach the insert piece 9 to the inner wall 5. recess 1
6, a tamper-proof paper box is completed (see FIG. 7).

An enlarged cross-sectional view of the tamper-proof paper box with the lid closed in this manner is shown in FIG.

As is clear from this figure, the insertion piece 9 connected to the lid 11 is inserted from the insertion hole 6 of the inner lid piece 7 connected to the outer wall 1 into a recess 16 different from the bonding surface T of the outer wall 1 and the inner wall 5. Since the adhesive surface T of the outer wall 1 and the inner wall 5 can be peeled off with a thin knife, the adhesive of the insertion piece 9 cannot be peeled off.

Note that the guide piece 13 that is folded in from the fold h at the same time as the inner cover piece 7 is folded is closer to the horizontal center line of the inner wall 5 than the fold i, where the fold h is an extension of the fold f. Since the edges of the cut lines 15 on both sides of the guide piece 13 are closer to the horizontal center line of the inner wall 5 than the position of the fold h, the ends of the cut lines 15 are connected to each other. It is bent along the line and the crease h, and a guiding bent part 17 is formed at the bent part to guide the tip of the insertion piece 9 into the recess 16. This facilitates insertion, but since the insertion space is formed by forming the recess, the guide piece 13 is not necessary.

Further, the flat piece 8 and the adhesive tongue piece 14 are not essential requirements for the structure of the tamper-proof paper box.

The tamper-evident paper box with the lid closed in this way is opened by pushing the opening line 12 on the outer wall 1 with your finger and pulling the lid 11 upwards, then removing the lid 11, the flap piece 8 and the inner lid piece 7.
The package is opened by peeling off the adhesive.

In the embodiment described above, coarse perforation lines 1 are provided on the lid 11.
Although the explanation was given using an example in which the insertion piece 9 is connected through the 0,
A simple crease may be used instead of a coarse perforation line.

Alternatively, one side may be a coarse perforation line and the other side may be a simple fold line.

Further, in the above embodiment, the lid 11 is connected to the upper part of the rear wall 3 via the opening line 12, which is a perforation line whose center enters into the rear wall 3 side, and the fold g. The shape of the line 12 is not particularly limited, and the opening line 12 may be replaced by a simple fold.

(Operation and effect of the invention) The tamper-proof paper box according to the invention has at least one of the body-forming walls forming the box body which is open at both ends as an overlapping double wall. In the paper box, the openings at both ends are closed by lids connected to the opposing body forming walls, and an insertion piece connected to the lids is inserted between the double walls and bonded. The inner cover piece is made narrower than the cover width and has an insertion hole into which the insert piece is inserted, and is connected to the outer wall of the double wall. A recess having a depth approximately equal to the thickness of the insertion piece is formed on the surface where the pieces are to be overlapped, and the insertion piece is inserted through the insertion hole of the inner cover piece and adhered to the recess. Therefore, the adhesion surface of the double wall where the outer wall and the inner wall are glued together and the adhesion surface of the insert piece are on different planes, and the expansion of the outer wall is restrained by the insertion hole through which the insert piece is passed. become.

For this reason, even if the adhesive side of the double wall could be peeled off with a sharp knife, it would not only be impossible to unfold it, but also the adhesive on the insert piece could not be removed without damaging the box. As a result, insertion of foreign substances such as poisonous substances and extraction of contents can be effectively prevented.

In addition, the tamper-proof paper box according to the present invention has a recessed portion having a depth approximately equal to the thickness of the insert piece on the inner wall of the double wall, on which the insert piece overlaps. The opening for inserting the insert piece between the walls is now open, making it easier to insert the insert piece.

Therefore, according to the present invention, it is possible to provide a tamper-proof paper box that is easy to assemble and in which it is impossible to insert foreign substances such as poisonous substances or remove the contents without tearing the paper.

[Brief explanation of the drawing]

Figure 1 is an exploded back view of the tamper-proof paper box according to the present invention, Figure 2 is a sectional view taken along the - line in Figure 1, and Figures 3 to 7 are the assembly order of the tamper-proof paper box of Figure 1. FIG. 8 is an enlarged sectional view taken along the line - in FIG. 7, and FIG. 9 is an exploded back view of a conventional tamper-proof paper box. a to i...Fold, 1...Outer wall, 2...Side wall, 3
... Rear wall, 4 ... Side wall, 5 ... Inner wall, 6 ... Insertion hole, 7 ... Inner cover piece, 8 ... Flap piece, 9 ... Insertion piece, 10 ... Coarse perforation line, 11 ...Lid, 12
...Opening line, 13...Guide piece, 14...Adhesive tongue piece, 15...Score line, 16...Recessed portion.

Claims (1)

[Scope of utility model registration request] At least one of the trunk-forming walls forming the box trunk with both ends open is a double wall, and the openings at both ends are closed by a lid connected to the trunk-forming wall facing the double wall. In a paper box in which the lid is closed and an insertion piece connected to the lid is inserted and glued between the double walls, the insertion piece is made narrower than the lid width, and the insertion piece is made narrower than the lid width. An inner cover piece with an insertion hole to be inserted is connected to the outer wall of the double wall, and the inner wall of the double wall, on which the insertion piece overlaps, has a thickness approximately equal to that of the insertion piece. 2. A tamper-proof paper box, characterized in that a recess is formed with a depth of 1, and the insertion piece is inserted through the insertion hole of the inner lid piece and adhered to the recess.