JP2009298453A - Packaging box with opening lock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging box with an opening lock which can be locked simply and certainly by a light force and is excellent in pressure resistance. <P>SOLUTION: In the packaging box with the opening lock in which a lock piece 8 is provided between two cutting lines 7 over a ridge crease line 6 of side plates 1, 2 and lid plates 4, 5, a projected part 9a and a notch part 9b are provided at both side edges of a side piece 9 which is a side plate part of the lock piece 8 and both side edges of a lid piece 10, which is a lid plate part of the lock piece 8, are parallel and a base part crease line 11 parallel with the ridge crease line 6 is provided only at the base edge of the lid piece 10 of the base edges of the side piece 9 and the lid piece 10 and the lid plates 4, 5 are opened and folded backed outside the side plates 1, 2 and when the lock piece 8 that the side piece 9 and the lid piece 10 are piled up, is brought down outward using the base part crease line 11 as a hinge, the overhang part 9a of the side piece 9 is engaged into the side edge of a removal hole of the lid piece 10 so that the lid plates 4, 5 may bite into the notch part 9b. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a packaging box with an open lock that can hold a cover plate in an open state.

  Conventionally, in Patent Document 1 below, as shown in FIG. 8, two cuts having a tapered width from the side plate 51 to the cover plate 52 across the ridge line 61 of the side plate 51 and the cover plate 52. A packaging box with an open lock is described in which a line of sight 62 is provided, a lock piece 53 is provided therebetween, and a side plate portion and a lid plate portion of the lock piece 53 are a side piece portion 54 and a lid piece portion 55, respectively.

  In this packaging box with an open lock, when the cover plate 52 is opened and folded back to the outside of the side plate 51, and the lock piece 53 where the side piece portion 54 and the cover piece portion 55 overlap is tilted outward, both side portions of the side piece portion 54 Is engaged with the side edge of the extraction hole of the lid piece portion 55 and the lid plate 52 is held in an open state, so that the article can be easily taken out.

Japanese Utility Model Publication No. 2-87718

  However, in the packaging box with an open lock as described above, when the lock piece 53 is tilted, the side edge portions of the side piece portion 54 and the lid piece portion 55 are torn, and the accompanying resistance is very large. If this occurs, the vicinity of the score line 62 may be deformed.

  Then, this invention makes it a subject to provide the packaging box with an open lock which can be locked easily and reliably with light force, and was excellent also in the pressure-resistant strength.

  In order to solve the above-mentioned problems, the present invention provides a side piece that is a side plate portion of a lock piece in a packaging box with an open lock provided with a lock piece between two cut lines straddling the ridge line of the side plate and the cover plate. Protruding parts and notches are provided on both side edges of the cover part, both side edges of the cover piece part, which is the cover plate part of the lock piece, are made parallel, and the base of the cover piece part is the base end of the side piece part and the cover piece part. Put the base crease line parallel to the ridge crease line only at the end, open the cover plate and fold it back to the outside of the side plate, and use the base crease line as a hinge to lock the lock piece where the side piece part and lid piece part overlap When the cover is tilted down, the overhanging portion of the side piece engages with the side edge of the extraction hole of the lid piece so that the cover plate is engaged with the cutout.

  In addition, when connecting portions are provided on the cut lines on both sides of the side piece portion and the lid piece portion, and the side piece portion and the cover piece portion are overlapped, the position of the connecting portion is shifted so that these connecting portions do not overlap. It was.

  In addition, on the side plate where the end of the sealing tape is affixed around the abutting portion of the cover plate, a cut line is provided in the side piece portion of the lock piece, and a knob portion to be covered by the tape is provided, facing the knob portion. A score line is provided at a position where the tape does not cover and a finger insertion portion is provided.

  In this packaging box with an open lock, when the locking piece where the side piece and the lid piece overlap each other is tilted outward, the protruding portion of the side piece is bent and the lid piece with both side edges parallel is pulled out. The locking piece swings with the base crease line inserted into the base end of the lid piece as a hinge, and the lid plate bites into the notch on the base side of the side piece. Thus, it can be easily and reliably locked, and since there is no crease line at the base end of the side piece, the pressure resistance is ensured.

  In addition, the pressure resistance is improved by the connecting parts on the cut lines on both sides of the side piece and the lid piece, and the position of the connecting part between the side piece and the lid piece is shifted. The connecting portion of the side piece portion and the lid piece portion is cut sequentially instead of simultaneously, and the resistance is reduced.

  In addition, there is a knob part that covers the tape on the lock piece by a score line put on the side plate to which the end of the sealing tape is affixed, and a finger insertion part that faces the knob part is provided. The part can be picked and the tape can be easily peeled off and opened.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  This packaging box with an open lock is formed from a cardboard blank shown in FIG. In this blank, as shown in FIG. 1, each pair of side plates 1 and 2 is alternately provided, and a passage piece 3 is provided on the outside of one side plate 2. Cover plates 4 and 5 are connected to the upper ends of the side plates 1 and 2, and bottom plates 14 and 15 are connected to the lower ends, respectively.

  Two cut lines 7 are provided at the connecting portions of the side plates 1 and 2 and the upper cover plates 4 and 5, respectively, and the lock pieces 8 sandwiched between the cut lines 7 are provided. Yes. The side plates 1 and 2 of the lock piece 8 are side pieces 9, and the cover plates 4 and 5 are lid pieces 10. As for the side piece part 9 and the cover piece part 10, the both ends position of the cut line 7 becomes a base end, respectively.

  Here, in FIG. 2, as shown in an enlarged manner with respect to the connecting portion of the side plate 2 and the cover plate 5, the both side edges of the side piece 9 are tapered so as to project outward from the ridge line 6. The overhanging portion 9a and a cutout portion 9b that cuts in an arc shape on the base end side are provided. Both side edges of the lid piece 10 are parallel.

  The lock piece 8 has a base crease line 11 formed of a ruled line parallel to the ridge line crease line 6 only at the base end of the cover piece part 10 among the base ends of the side piece part 9 and the cover piece part 10. It is put.

  Moreover, the connection part 7a is provided in the score line 7 of the both sides of the side piece part 9 and the cover piece part 10, and when the side piece part 9 and the cover piece part 10 are piled up, these connection parts 7a do not overlap. In addition, a difference is provided between the distance A from the ridge line 6 of the connecting part 7 a in the side piece 9 and the distance B from the ridge line 6 of the connecting part 7 a in the lid piece 10.

  Further, as shown in an enlarged view in FIG. 3, the upper side of the other side plate 1 is provided with a knob portion 12 having a cut line having a connecting portion in the side piece portion 9 of the lock piece 8, and a knob portion. 12, a finger insertion part 13 is provided with a score line having a connecting part. In the ridge line 6, a cut 6 a is made at a portion close to the knob 12. Moreover, as shown in FIG. 1, the knob | pick part 12 and the finger insertion part 13 are provided also in the lower part of this side plate 1. As shown in FIG.

  In order to assemble the blank as described above and wrap the article, as shown in FIG. 4, each pair of side plates 1, 2 is bent into a rectangular tube shape, and the passage piece 3 is attached to the opposite side plate 1. A peripheral wall is formed, the bottom plates 14 and 15 are sequentially bent to close the bottom surface, and articles are stored in the box, and then the lid plates 4 and 5 are sequentially bent to close the top surface and sealed with a tape T.

  At this time, the end portion of the tape T is made to wrap around from the abutting portion of the cover plate 5 to the upper portion of the side plate 1 so that the tape T covers the knob portion 12 and does not cover the finger insertion portion 13.

  In such a sealed state, since there is no crease line 11 at the base end of the side piece 9, pressure resistance is ensured, and the connecting part 7 a put in the cut line 7 on both sides of the side piece 9 and the lid piece 10. Also, the pressure strength is improved.

  And when opening this packaging box and taking out goods, as shown in FIG. 5, the finger insertion part 13 is pushed in, a finger is put in the extraction hole, the picking part 12 is picked, and the tape T is attached to the side plate. 1 and the cover plate 5 are peeled off.

  At this time, the knob 12 is torn from the side plate 1 in a state of being attached to the tape T, and even if the surface layer of the side plate 1 is rolled, it is prevented from being broken by the cut 6a inserted in the ridge line 6. T can be easily peeled off.

  Next, as shown in FIGS. 6 and 7, the lid plates 4 and 5 are opened and folded back to the outside of the side plates 1 and 2, respectively, and the lock piece 8 in which the side piece portion 9 and the lid piece portion 10 overlap is outward. Then, the protruding portion 9a of the side piece portion 9 is engaged with the extraction hole of the lid piece portion 10, and the lid plates 4 and 5 are held open.

  At this time, the protruding portion 9a of the side piece portion 9 is flexed and smoothly passes through the extraction hole of the lid piece portion 10 whose both side edges are parallel, and the lock piece 8 swings with the base crease line 11 as a hinge. And since the cover plates 4 and 5 bite into the notch 9b, it can be easily and reliably locked with a light force.

  Further, since the positions of the side piece 9 of the lock piece 8 and the connecting portion 7a of the lid piece 10 are shifted, when the lock piece 8 is tilted, the connecting portion 7a of the side piece 9 and the lid piece 10 is not simultaneously. Sequential cuts reduce resistance.

  Thus, if the cover plates 4 and 5 are locked and held in an open state, the article can be taken out from the box without being bothered by the cover plates 4 and 5. Further, even if there is no gap between the article and the inner surfaces of the side plates 1 and 2, the article can be pulled up by putting a hand between the article and the side plates 1 and 2 from the portion of the lock piece 8 that is tilted outward. .

  In the above embodiment, the peripheral wall is exemplified as a rectangular tube, but the configuration of the present invention is applicable to a packaging box in which a chamfered portion is formed at a corner portion of the peripheral wall or a packaging box in which the peripheral wall is a hexagonal cylindrical shape. Can be applied.

The figure which shows the blank of the packaging box with an open lock concerning this invention Enlarged view of the lock piece Enlarged view of the lock piece with the knob The perspective view which shows the sealing state of a packaging box same as the above Partial enlarged perspective view showing the tape peeling process The perspective view which shows the open lock state of a packaging box same as the above Enlarged perspective view of the lock piece part Enlarged view of the lock piece of a conventional packaging box with an open lock

Explanation of symbols

1, 2 Side plate 3 Passage piece 4, 5 Lid plate 6 Ridge crease line 6a Cut line 7 Cut line 7a Connection part 8 Lock piece 9 Side piece part 9a Overhang part 9b Notch part 10 Lid piece part 11 Base crease line 12 Part 13 Finger insertion part 14, 15 Bottom plate

Claims (3)

  In a packaging box with an open lock with a lock piece (8) between two cut lines (7) straddling the fold line (6) of the side plate (1,2) and lid plate (4,5) Overhang portions (9a) and notches (9b) are provided on both side edges of the side piece portion (9) which is the side plate portion of the piece (8), and the lid piece portion (10) which is the lid plate portion of the lock piece (8) ) On both side edges of the side piece (9) and the base piece of the lid piece (10), only at the base of the lid piece (10), the base parallel to the ridge line (6) Insert the crease line (11), open the cover plate (4, 5) and fold it back to the outside of the side plate (1, 2), and use the base crease line (11) as a hinge, side piece (9) and lid piece ( When the locking piece (8) that overlaps with (10) is tilted outward, the overhanging part (9a) of the side piece (9) engages with the side edge of the extraction hole of the lid piece (10). A packaging box with an open lock, characterized in that the cover plate (4, 5) bites into the notch (9b).   In the packaging box with an open lock according to claim 1, a connecting portion (7a) is provided on the cut line (7) on both sides of the side piece portion (9) and the lid piece portion (10), and the side piece portion (9) and A packaging box with an open lock, wherein the position of the connecting portion (7a) is shifted so that the connecting portion (7a) does not overlap when the lid piece portion (10) is overlapped.   3. A packaging box with an open lock according to claim 1 or 2, wherein the side of the lock piece (8) is attached to the side plate (1) to which the end of the sealing tape is attached by wrapping around from the abutting portion of the lid plate (5). Make a cut line on one piece (9), provide a knob (12) that covers the tape, cut the cut line at the position where the tape does not cover the knob (12), and insert the finger insert (13). A packaging box with an open lock characterized by being provided.

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