JP5393630B2 - Cardboard box - Google Patents

Description

  The present invention relates to a corrugated cardboard box that is used for packaging an article and is sealed with a paper adhesive tape after the article is accommodated and a flap is closed.

  In general, a pair of inner flaps that are connected to the open end edge of the rectangular tubular body and are opposed to each other are bent so as to cover the open end of the body part, and then connected to the open end edge of the body part. The pair of outer flaps facing each other perpendicular to the opposing direction of both inner flaps are bent so as to cover the outer surfaces of both inner flaps, and the leading edges of both outer flaps are abutted against each other to close the open end of the trunk portion The corrugated cardboard box is sealed by sticking a paper adhesive tape having a predetermined width along the abutting portion where the leading edges of both outer flaps abut each other.

  In this type of cardboard box, the adhesive tape is opened by breaking with a cutter such as a cutter, but since the articles stored in the cardboard box may be damaged by the blade, It is desirable to break or remove the adhesive tape manually without using a cutting tool. However, since the adhesive tape is firmly attached to the outer flap of the cardboard box, it is extremely troublesome to break or remove the adhesive tape by hand.

  Therefore, conventionally, by providing a resectable piece excised from the substantially central part of one outer flap and a resectable piece excised from the substantially central part of the other outer flap, An adhesive tape is known to be peeled from the abutting portion (see Patent Document 1 below).

  In this configuration, the excisable piece of one outer flap and the excisable piece of the other outer flap are provided so as to be adjacent to each other while being displaced from each other. First, by cutting off one excisable piece, the adhesive tape is broken and divided on the other excisable piece side, and the adhesive tape is peeled off toward one of the abutting portions. Then, the remaining adhesive tape is peeled off toward the other side of the abutting portion by cutting out the other excisable piece. By doing so, the adhesive tape can be easily removed and opened without using a blade such as a cutter.

Japanese Patent Laid-Open No. 9-240660 (paragraph 0018 and FIG. 6)

  However, in the thing of the said patent document 1, when excision of one excisable piece, if the operation of an excisable piece is mistaken, an adhesive tape may fracture | rupture and divide from the opposite side to the other excisable piece side. . In this case, the adhesive tape is peeled off in the direction opposite to the correct direction to be peeled off together with one of the excisable pieces, and the adhesive tape attached to the other excisable piece follows this. As a result, the adhesive tape remaining in the remaining half of the abutting portion cannot be peeled off together with the other excisable piece even if the other excisable piece is excised.

  In view of the above points, an object of the present invention is to provide a corrugated cardboard box that can smoothly peel the adhesive tape over the entire length of the abutting portion of the outer flap and can efficiently perform the opening operation.

According to the present invention, a pair of inner flaps that are connected to the open end edge of a rectangular tubular body and are opposed to each other are bent so as to cover the open end of the body, and are connected to the open end edge of the body. The pair of outer flaps facing each other perpendicular to the opposing direction of both inner flaps are bent so as to cover the outer surfaces of both inner flaps, and the leading edges of both outer flaps are abutted against each other to close the open end of the trunk portion In a corrugated cardboard box that is sealed by adhering a paper adhesive tape having a predetermined width along the abutting portion where the leading edges of both outer flaps abut each other, the adhesive is attached to at least one of the outer flaps. A break start portion that allows a finger to be inserted at a position exposed from the tape, and a first perforation that is formed from one end of the break start portion toward the abutment portion and that is inclined with respect to the abutment portion And other than the break starting portion A second perforation formed toward the abutment portion and extending in the same direction as the first perforation, and the first perforation and the second perforation are broken. As a result, the first removable piece that has been ruptured in a direction inclined with respect to the abutting portion from the rupture start portion and excised from a part of the outer flap, and the first resectable piece were excised. A third perforation formed from the cutting edge toward the abutment portion and extending in a direction opposite to the first perforation and the second perforation, and the third perforation When the first cuttable piece is cut, the breakage proceeds in the direction opposite to the first cuttable piece from the cutting edge after the first cuttable piece has been cut off toward the abutting portion. Provided with a second excisable piece excised from a part of the flap And wherein the door.

  The cardboard box of the present invention can be easily opened by peeling off the adhesive tape as follows. First, a finger is inserted into the breaking start portion, and the first excisable piece is pulled up with the tip of the first excisable piece being picked through the breaking start portion. When the first excisable piece is separated from the outer flap, the adhesive tape is broken along with the excision of the first excisable piece, and when the first excisable piece is separated from the outer flap, the first excisable piece is separated. The peelable piece is peeled off from the outer flap together with the first excisable piece with the broken end of the adhesive tape stuck to the possible piece.

  At this time, the first excisable piece is broken and divided with the second excisable piece, and the adhesive tape continuously attached to the first excisable piece and the second excisable piece is the second excisable piece. Following the fracture division of the first excisable piece, the part that is adhered to the first excisable piece and the part that is adhered to the second excisable piece are divided into pieces.

  Since the first excisable piece breaks in a direction inclined with respect to the abutting portion, the adhesive tape is broken in the same direction as the direction in which the breakage of the first excisable piece proceeds, and the second excisable piece Peeling proceeds in a direction away from the possible piece.

  On the other hand, the remaining adhesive tape that has been peeled off together with the first excisable piece is stuck to the second excisable piece. Therefore, the second excisable piece is excised using the cutting edge after the first excisable piece is excised. Thereby, the remaining adhesive tape is peeled off together with the second excisable piece, and the peeling of the adhesive tape over the entire length of the abutting portion is completed.

  As described above, according to the present invention, it is possible to smoothly perform the peeling operation without mistaking the peeling direction of the adhesive tape, and it is possible to perform the opening operation quickly and reliably.

  In the present invention, the break start portion, the first excisable piece, and the second excisable piece are symmetrical with respect to an abutting portion where the leading edges of both outer flaps abut each other. Are preferably provided on both outer flaps.

  As a result, it is possible to start the excision of the first excisable piece by selecting the fracture start portion provided on either one of the outer flaps, and the adhesive tape is peeled off from the direction in which the operator can easily work. Yes. Therefore, the cardboard box can be opened smoothly without changing the direction of the cardboard box or the posture of the operator in order to adjust the direction of peeling of the adhesive tape to the desired direction. However, since the opening operation can be performed easily, the workability at the time of opening can be improved.

  In the present invention, when the pair of inner flaps are bent so as to cover the open end of the body portion, a gap is formed between the leading edge of one inner flap and the leading edge of the other inner flap. In the thing, it is preferable that the said fracture | rupture start part is provided in the position corresponding to the said gap | interval. According to this, the inner flap is not in close contact with the inside of the rupture start portion, the finger can be smoothly inserted into the rupture start portion, and workability at the time of opening can be improved.

An explanatory perspective view showing a cardboard box of an embodiment of the present invention. Explanatory top view which shows the principal part of the cardboard box of this embodiment. Explanatory drawing which shows the opening operation | work of the cardboard box of this embodiment. Explanatory drawing which shows the opening operation | work following FIG.

  An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the corrugated cardboard box according to the present embodiment includes a rectangular tubular body 1 having a closed bottom, and after a packaged object (not shown) is accommodated in the body 1, The top 6 is closed by the inner flaps 2 and 3 and the pair of outer flaps 4 and 5.

  That is, the inner flaps 2 and 3 are connected to the upper edges of the side plates 7 and 8 that constitute a part of the body 1 and face in the front-rear direction via the crease lines 9 and 10. , 5 are connected to the upper edges of the side plates 11 and 12 that constitute a part of the body 1 and face in the left-right direction via crease lines 13 and 14, respectively.

  When closing the top 6, first, the pair of inner flaps 2, 3 are folded inward along the crease lines 9, 10 to be horizontal. At this time, a gap is formed between the leading edges of the inner flaps 2 and 3 facing each other. Next, the pair of outer flaps 4, 5 is folded inward along the crease lines 13, 14 and is superposed on the inner flaps 2, 3. Thereby, the front-end edge of both the outer flaps 4 and 5 is abutted against each other (abutment portion 15), and the top portion 6 is closed. Then, the adhesive tape 16 (shown in phantom in FIG. 1) is stuck along the abutting portion 15 to seal the top portion 6.

  The adhesive tape 16 is a paper adhesive tape having a predetermined width with an adhesive applied to the back surface, and is known as a craft tape, gum tape, or the like that can be broken by an operator without using a cutting tool such as a cutter. Is used.

  As shown in FIGS. 1 and 2, the cardboard box of this embodiment is provided with tape cutting operation portions 17 and 18 according to the gist of the present invention. The tape cutting operation portions 17 and 18 are provided on both outer flaps 4 and 5, respectively, and are configured by a break start portion 19, a first excisable piece 20, and a second excisable piece 21.

  As shown in FIG. 2, the break start portion 19 is formed by a semicircular cut line 22 so that a finger can be inserted.

  The first excisable piece 20 includes a first perforation 23 (breakable line) extending in one direction with respect to the abutting portion 15 and connected to one end of the cut line 22 of the break start portion 19, and a break start. The second perforation 24 (breakable line) that extends in the same direction as the first perforation 23 is connected to the other end of the cut line 22 of the portion 19 so as to be excisable from the outer flaps 4 and 5. ing.

  The second excisable piece 21 is connected to the second perforation 24 (breakable line) common to the first excisable piece 20 and the other end of the cut line 22 of the break start portion 19. 23 and a third perforation 25 (breakable line) extending obliquely in the opposite direction to the outer flaps 4 and 5 so as to be excisable.

  Further, the break start portion 19 is a position exposed from the adhesive tape 16 attached to the abutting portion 15 and a position corresponding to the gap between the inner flaps 2 and 3 bent on the trunk portion 1. Is provided.

And both the tape cutting operation parts 17 and 18 provided with the fracture | rupture start part 19, the 1st excisable piece 20, and the 2nd excisable piece 21 are both outer flaps so that it may become line symmetrical about the abutting part 15 as an axis of symmetry. In the corrugated cardboard box of the present embodiment having the above-described configuration, the adhesive tape 16 is peeled off and opened as follows. That is, first, a finger is inserted into one of the tape cutting operation sections 17 and 18 (hereinafter, an example using the tape cutting operation section 17). At this time, since the break start portion 19 is provided at a position corresponding to the gap between the leading edges of the inner flaps 2 and 3 facing each other, the finger inserted into the break start portion 19 hits the inner flaps 2 and 3. Smooth insertion operation.

  Next, when the first excisable piece 20 is pulled up so as to pick the breaking start portion 19, as shown in FIG. 3, the first perforation 23 and the second perforation 24 in a direction inclined with respect to the abutment portion 15. The adhesive tape 16 attached to the first excisable piece 20 is broken and divided on the second excisable piece 21 side, and the divided adhesive tape 16 is in the attached state. The excisable piece 20 is separated from the outer flap 4. Thereby, one side of the adhesive tape 16 that has been broken and divided is removed together with the first excisable piece 20.

  Next, when the second excisable piece 21 is pulled up using the break edge by the second perforation 24 as a clue, as shown in FIG. 4, the abutment portion 15 is inclined to the opposite side of the first excisable piece 20. The breakage of the third perforation 25 proceeds in the direction in which the remaining adhesive tape 16 is peeled off together with the second excisable piece 21. As a result, the remaining adhesive tape 16 that has been broken and divided is removed together with the second excisable piece 21.

  As described above, the operation of the break start portion 19, the first excisable piece 20, and the second excisable piece 21 can smoothly perform the peeling operation without mistaking the peeling direction of the adhesive tape 16. Since the peeling of the adhesive tape 16 over the entire length can be performed quickly and reliably, the opening operation can be easily performed.

  In the above description, an example in which an opening operation is performed using one tape cutting operation unit 17 is shown, but the other tape cutting operation unit 18 can also be used, making it easy to work according to the dominant hand of the operator. Either one can be selected in consideration of the above.

  In the present embodiment, a tape cutting operation unit 17 is provided on the outer flap 4 and a tape cutting operation unit 18 is provided on the outer flap 5, but although not shown, tape cutting is performed only on one outer flap. An operation unit may be provided.

  In the present embodiment, by providing the break start portion 19 at a position corresponding to the gap formed between the leading edges of the inner flaps 2 and 3, smooth insertion of fingers into the break start portion 19 is facilitated. Although what can be performed was shown, it is not restricted to this, You may provide the fracture | rupture start part 19 in the position corresponding to the inner flap 2 or the inner flap 3. FIG. In this case, the inner flap 2 or the inner flap 3 may make it difficult to insert a finger into the breaking start portion 19, but if the deflection of the outer flaps 4, 5 and the inner flaps 2, 3 is used, the breaking start portion It is possible to insert a finger into 19 so that the opening operation can be performed without any trouble.

  Further, in the present embodiment, a cardboard box in which the top portion 6 closed by the pair of inner flaps 2 and 3 and the pair of outer flaps 4 and 5 is sealed with the adhesive tape 16 is shown. In the case where the bottom is also closed in the same manner, the configuration of the tape cutting operation portions 17 and 18 can be similarly adopted for the outer flap that closes the bottom.

DESCRIPTION OF SYMBOLS 1 ... Body part, 2, 3 ... Inner flap, 4, 5 ... Outer flap, 15 ... Abutting part, 16 ... Adhesive tape, 19 ... Breaking start part, 20 ... First excisable piece, 21 ... Second excisable part One piece , 23 ... the first perforation, 24 ... the second perforation, 25 ... the third perforation .

Claims (3)

A pair of inner flaps that are connected to the open end edge of the rectangular cylindrical body and face each other are bent so as to cover the open end of the body part, and both inner flaps are connected to the open end edge of the body part. A pair of outer flaps that are orthogonal to each other in the opposite direction are bent so as to cover the outer surfaces of both inner flaps, and the leading edges of both outer flaps are abutted against each other to close the open ends of the barrels. In a corrugated cardboard box that is sealed by sticking a paper adhesive tape of a predetermined width along the abutting portion where the leading edges of the flaps are abutted,
At least one of the outer flaps, a breakage start portion that allows a finger to be inserted at a position exposed from the adhesive tape , and one end of the breakage start portion that is formed toward the abutment portion, with respect to the abutment portion And a second perforation that extends from the other end of the fracture start portion toward the abutment portion and extends in the same direction as the first perforation. When the first perforation and the second perforation are ruptured , the rupture proceeds in a direction inclined with respect to the abutting portion from the rupture start portion, and is cut out from a part of the outer flap. A first removable piece that is formed, and formed from the cutting edge when the first resectable piece is cut toward the abutment portion, opposite to the first perforation and the second perforation 3rd missile which inclines in the direction and extends Eyes, by perforation of the third is broken, inclined from the cutting edge after the first resectable piece is cut in the opposite direction of the first resectable piece toward the abutting portion A corrugated cardboard box provided with a second excisable piece that is cut off from a part of the outer flap as the breakage proceeds. The cardboard box according to claim 1,
The rupture start portion, the first excisable piece, and the second excisable piece are provided on both outer flaps so as to be line-symmetric with respect to an abutting portion where the leading edges of the outer flaps abut each other. A cardboard box characterized by being made. 3. The cardboard box according to claim 1, wherein when the pair of inner flaps are bent so as to cover the open end of the body portion, the leading edge of one inner flap and the leading edge of the other inner flap In a gap formed between them,
The corrugated cardboard box, wherein the breaking start portion is provided at a position corresponding to the gap.

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