JP2009096505A - Packaging box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging box which is not damaged and facilitates packaging work in packaging. <P>SOLUTION: A first insertion flap 8 is formed consecutively on a top board 2, the first insertion flap 8 having a slit 9 along a folding line 2a on a folded portion folded toward a first side board 3. On the upper edge of the first side board 3, a second insertion flap 10 is formed by cutting down the first side board 3, projecting with the width corresponding to the width of the slit 9, along the extensions of both edges of its projecting portion from the upper edge of the first side board 3 up to the middle thereof. In the center of the slit 9, a pull-insertion opening 20 is cut off consecutively from the folding line 2a of the first insertion flap 8 toward the inside of the top board 2. In the center of the slit 9 opposite to the pull-insertion opening 20, an interference preventing opening 21 is cut off consecutively from the folding line 2a of the first insertion flap 8 toward the front end of the first insertion flap 8. The lower edge of the second insertion flap 10 is folded outward from the first side board 3, and the front end 10c of the second insertion flap 10 is folded inward along the upper edge of the first side board 3 to be inserted in the slit 9, by which the top board 2 is closed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a packaging box for packing products such as electrical equipment and food products.

  Conventionally, products such as electrical equipment and foodstuffs are packed in a factory or the like and then transported and delivered to a store or a user. However, there is a possibility of failure or damage due to dropping or vibration during that time. Therefore, although a certain level of strength and shock absorption are required, it is often unnecessary after reaching the user's hand. For this reason, it becomes important to design so that it does not cost.

  For example, in a paper pass-through box having two top-side flaps and two top-side flaps in Patent Document 1, the two top-side flaps have dimensions that substantially cover the entire top surface, The first top surface outer flap has an insertion and locking tongue piece slit at the tip, and a insertion slit at the rear end, and the second top surface flap is inserted at the tip and an insertion slit at the rear end. When the first top surface flap is overlapped on the outside with the locking tongue piece, the insertion of the tip of the first top surface flap is inserted into the insertion slit at the rear end of the second top surface flap, and the second When the locking tongue piece at the rear end of the flap is inserted into the slit for the locking tongue piece at the tip of the first top surface flap, and the first top surface flap is overlapped inside, the insertion of the tip of the second top surface flap is It will be inserted into the insertion slit at the rear end of the first top flap It has become.

In addition, the packaging box of Patent Document 2 protrudes to a width corresponding to the width of the slit from the first engagement piece accommodated inside one side surface formed with a slit and the upper edge of one side surface. It is formed by cutting one side partway, and has a second engagement piece that closes the upper surface when the tip part is inserted into the slit, and the upper surface has a finger hanging recess and a finger hook. On both sides of the recess, a pair of first projecting pieces that project beyond the folding line of the first engaging piece and project to the upper part of the slit are provided. This packaging box has a pair of second projecting pieces projecting upward from the upper edge on both sides of the second engaging piece on one side upper edge, without damaging the packaging box, The second engagement piece can be easily inserted into the slit entrance of the first engagement piece.
JP 2001-315753 A JP 2003-267354 A

  However, the width of the locking slit into which the insertion of Patent Document 1 is inserted is about the thickness of the paper, and it becomes difficult to insert due to being caught on the periphery of the slit or when it is inserted.

  In Patent Document 2, by providing the first and second projecting pieces, the first engaging piece can be easily inserted into the slit inlet, and the occurrence of the scissors or the like can be prevented. Since the first and second protruding pieces protrude from the periphery, the protruding pieces may be deformed by an unexpected impact before the product is packed.

  This invention is made | formed in view of this point, The place made into the objective is to provide the packaging box which is easy to pack without being damaged at the time of packing.

  In order to achieve the above object, in the present invention, the slit periphery and the portion inserted into the slit are prevented from being damaged by devising the shape of the slit.

Specifically, in the first invention, the top plate,
One side plate adjacent to the top plate;
A first insertion piece formed continuously with the top plate, bent toward the one side plate, and having a slit along the fold line at the bent portion;
Continuing from the upper edge of the one side plate and projecting to a width corresponding to the width of the slit, the one side plate is extended downward from the upper edge of the one side plate and extends downward. A second insertion piece formed by being cut halfway,
The lower edge of the second insertion piece is bent outward from the one side plate and bent inward along the upper edge of the one side plate, and the tip portion of the folding line is inserted into the slit. Thus, a packaging box configured to close the top plate is targeted.

And the packaging box
An opening for insertion and removal that is continuous with the center of the slit and is cut out from the folding line of the first insertion piece toward the inside of the top plate,
It has an interference preventing opening cut out from the folding line of the first insertion piece toward the distal end side of the first insertion piece.

  According to the above configuration, when inserting the second insertion piece into the slit of the first insertion piece, while pressing the tip of the second insertion piece with a finger, the back side is brought into contact with the periphery of the interference preventing opening, The tip of the second insertion piece is inserted into the slit. The tip of the second insertion piece inserted into the slit is inserted into the back of the slit while sliding on the periphery of the insertion / extraction opening on the back side of the top plate. At this time, the contact between the finger and the top plate is avoided by the insertion / removal opening. In this way, the second insertion piece is easily inserted into the slit, and the top plate is securely closed.

In the second invention, in the first invention,
The opening for preventing interference is cut out in an isosceles trapezoidal shape with the slit side as the bottom and tapering toward the tip end side of the first insertion piece.

  According to the above configuration, when the second insertion piece is inserted into the slit of the first insertion piece by pressing down the tip of the second insertion piece with a finger, the back surface is brought into contact with the periphery of the interference prevention opening. The back surface of the two insertion pieces is smoothly guided from the upper base side to the lower base side of the isosceles trapezoid. For this reason, a 2nd insertion piece is easily inserted in a slit, and a top plate is closed reliably.

In the third invention, in the second invention,
The opening for insertion / extraction is cut into a semicircle,
The length of the lower bottom of the interference prevention opening is longer than the diameter of the insertion / extraction opening.

  That is, the insertion / removal opening is normally sized so that one finger can be avoided, and when the second insertion piece is pushed down by the finger, the range pressed by the finger is bent downward. And the length of the lower bottom of the interference prevention opening is longer than the diameter of the insertion / extraction opening, and the second insertion piece with the tip inserted into the slit bends downward while abutting the back surface of the top plate, Since the back surface of the bent second insertion piece does not come into strong contact with the periphery of the interference prevention opening, the second insertion piece is prevented from being damaged by being raised. For this reason, a 2nd insertion piece is easily inserted in a slit, and a top plate is closed reliably.

In a fourth invention, in any one of the first to third inventions,
The packaging box is formed from a single corrugated board.

  According to the above configuration, the corrugated board is light and inexpensive, can be easily recycled, and has an appropriate strength and shock absorption, and thus is suitable as a material for the packaging box of the present invention.

  As described above, according to the present invention, when the second insertion piece is inserted into the slit of the first insertion piece, the second insertion piece is smoothly guided into the slit by the interference preventing opening. Thus, it is possible to obtain a packaging box that is easy to pack without being damaged during packing.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 4 show a packaging box 1 according to an embodiment of the present invention. The packaging box 1 has a rectangular parallelepiped shape, and has a top plate 2 and first to fourth side plates 3 to 6 adjacent to the top plate 2. And a bottom plate 7. FIG. 5 shows a developed view of the packaging box 1. The bottom plate 7 is configured by overlapping first to fourth bottom plate members 7a to 7d that are continuous from the first to fourth side plates 3 to 6, respectively. On the side edge of the third side plate 5, a glued portion 5a is formed continuously. Upper flaps 4a and 6a are continuously formed on the upper edges of the second side plate 4 and the fourth side plate 6, respectively.

  The top plate 2 is continuously formed with a first insertion piece 8 that is bent toward the front side first side plate 3 side. An elongated slit 9 along the fold line 2a is formed in the bent portion.

  In the center of the upper edge of the first side plate 3, a second insertion piece 10 that protrudes to a width corresponding to the width of the slit 9 is formed continuously. As shown by hatching in FIG. 5, the second insertion piece 10 is formed by extending both edges of the protruding portion from the upper edge of the first side plate 3 and cutting the first side plate 3 partway downward. It is formed by.

  An intermediate partition plate 12 is provided on the upper edge of the first side plate 3 via a connecting portion 11. At the bent portion between the upper edge of the first side plate 3 and the connecting portion 11, a first insertion piece opening 11 a into which the first insertion piece 8 is inserted is opened corresponding to the width of the first insertion piece 8. . A flip portion 12 a that abuts against the first side plate 3 and stabilizes the intermediate partition plate 12 is formed at the tip of the intermediate partition plate 12.

  The lower edge of the second insertion piece 10 is bent outward from the first side plate 3 along the first fold line 10 a and is bent inward by the second fold line 10 b along the upper edge of the first side plate 3. The top end portion 10c of the front end of the folding line 10a is inserted into the slit 9 of the first insertion piece 8 inserted into the first insertion piece opening 11a, so that the top plate 2 is closed. ing.

  An insertion / removal opening 20 cut out from the bending line 2a of the first insertion piece 8 toward the inside of the top plate 2 is formed continuously in the center of the slit 9. The insertion / removal opening 20 is cut into a semicircular shape.

  As shown in an enlarged view in FIG. 6, an interference prevention opening 21 cut out from the fold line 2 a of the first insertion piece 8 toward the distal end side of the first insertion piece 8 is formed at the center of the slit 9. It is formed continuously. The interference prevention opening 21 is cut out in an isosceles trapezoidal shape having a slit 9 side as a lower base, an upper base at the distal end side of the first insertion piece 8, and tapering toward the distal end side. The length L of the lower bottom of the interference prevention opening 21 is longer than the diameter D of the insertion / removal opening 20 (L> D).

-Packing procedure for packaging box 1-
Next, the packing procedure of the packaging box 1 according to the present embodiment will be described.

  As shown in FIG. 5, the packaging box 1 is formed by cutting a single cardboard plate 30 and forming a broken line, a slit, or the like. The corrugated board 30 is suitable as a material for the packaging box 1 because it is lightweight, inexpensive and easy to recycle, and has appropriate strength and shock absorption.

  First, any of the first to fourth bottom plate members 7a to 7d constituting the bottom plate 7 and the glued portion 5a are appropriately glued, and the packaging box 1 is assembled in the state shown in FIG. 2 while folding them.

  Next, the packing tray 32 in which the product 31 is packed is inserted until it hits the bottom plate 7 of the packaging box 1.

  Next, as shown in FIGS. 3 and 4, the upper edge of the connecting portion 11 is folded in a U shape so that the back surface of the intermediate partition plate 12 is brought into contact with the upper surface of the packing tray 32, and the flip portion 12a. Is folded and brought into contact with the third side plate 5. In this state, the instruction manual 33 and the like are packed.

  Next, the lower edge of the second insertion piece 10 is bent outward from the first side plate 3 by the first fold line 10a, and the distal end portion 11c is bent by the second fold line 10b along the upper edge of the first side plate 3. After bending, the tip 10c is inserted into the slit 9 and the top 2 is closed. When the distal end portion 10c is inserted into the slit 9 of the first insertion piece 8, the back surface side is brought into contact with the periphery of the interference preventing opening 21 while the distal end portion 10c is pushed down with a finger. Inserted into. The distal end portion 10c inserted into the slit 9 is inserted to the back of the slit 9 while sliding along the periphery of the insertion / removal opening 20 on the back surface side of the top plate 2. At this time, the back surface of the second insertion piece 10 is smoothly guided from the upper base side to the lower base side of the isosceles trapezoid. As shown in FIG. 1, the contact between the finger and the top plate 2 is avoided by the insertion / removal opening 20. Thus, the 2nd insertion piece 10 is easily inserted in the slit 9, and the top plate 2 is closed reliably.

  The insertion / removal opening 20 is normally sized to avoid one finger, and when the second insertion piece 10 is pushed down by the finger, the range pressed by the finger is bent downward. According to the form, the length L of the lower bottom of the interference prevention opening 21 is longer than the diameter D of the insertion / removal opening 20, and the second insertion piece 10 having the tip inserted into the slit 9 is formed on the back surface of the top plate 2. Although it bends downward while abutting, the back surface of the bent second insertion piece 10 does not come into strong contact with the periphery of the interference preventing opening 21, so the second insertion piece 10 does not come up and be damaged. . For this reason, the 2nd insertion piece 10 is easily inserted in the slit 9, and the top plate 2 is closed reliably.

-Effect of the embodiment-
Therefore, according to the packaging box 1 according to the present embodiment, when the second insertion piece 10 is inserted into the slit 9 of the first insertion piece 8, the second insertion piece 10 is smoothly inserted into the slit 9 by the interference preventing opening 21. As a result, the packaging box 1 that is easy to pack without being damaged during packing can be obtained.

(Other embodiments)
The present invention may be configured as follows with respect to the above embodiment.

  That is, in the said embodiment, although the intermediate partition plate 12 was provided in the upper edge of the 1st side plate 3 via the connection part 11, these connection parts 11 and the intermediate partition plate 12 do not need.

  In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or a use.

It is a perspective view of the state where the top plate of the packaging box concerning the embodiment of the present invention was closed. It is a perspective view which shows a mode that the tray for packing is packed in a packaging box. It is a perspective view which shows a mode that an instruction manual is packed in a packaging box. It is side sectional drawing of the packaging box which closed the intermediate partition plate. It is an expanded view of a packaging box. It is an expansion perspective view of a slit, an opening for insertion and removal, and an opening for interference prevention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Packaging box 2 Top plate 2a Folding line 3 1st side plate (one side plate)
8 First Insertion Piece 9 Slit 10 Second Insertion Piece 10b Second Bend Line 10c Tip 20 Opening / Removing Opening 21 Opening for Preventing Interference

Claims (4)

With the top plate,
One side plate adjacent to the top plate;
A first insertion piece formed continuously with the top plate, bent toward the one side plate, and having a slit along the fold line at the bent portion;
Continuing from the upper edge of the one side plate and projecting to a width corresponding to the width of the slit, the one side plate is extended downward from the upper edge of the one side plate and extends downward. A second insertion piece formed by being cut halfway,
The lower edge of the second insertion piece is bent outward from the one side plate and bent inward along the upper edge of the one side plate, and the tip portion of the folding line is inserted into the slit. A packaging box configured to close the top plate,
An opening for insertion and removal that is continuous with the center of the slit and is cut out from the folding line of the first insertion piece toward the inside of the top plate,
A packaging box, comprising: an interference preventing opening that is continuous with a central portion of the slit and is cut from a fold line of the first insertion piece toward a distal end side of the first insertion piece. In the packaging box according to claim 1,
The packaging box according to claim 1, wherein the interference preventing opening is cut into an isosceles trapezoidal shape with the slit side as a bottom and tapering toward the distal end side of the first insertion piece. In the packaging box according to claim 2,
The insertion / extraction opening is cut into a semicircular shape with the slit side as a diameter,
A packaging box, wherein a length of a lower bottom of the interference prevention opening is longer than a diameter of the insertion / removal opening. In the packaging box according to any one of claims 1 to 3,
A packaging box formed from a single cardboard board.

Images