JPH08282656A - Flap fastening tool for corrugated fiberboard box - Google Patents

Abstract

PURPOSE: To surely and easily connect and fix adjacent upper lids of a corrugated fiberboard box under a standing state. CONSTITUTION: A plurality of insertion pins 9 are provided on a supporting plate 7 which is formed into an L-shape in such a manner that the insertion pins 9 may hang from the lower surface of the supporting plate 7. The insertion pins 9 are formed with a dimension which can be inserted into gaps 15 at the leading end surface of an adjacent upper lids 13 of a corrugated fiberboard box 11, and are arranged with a pitch by which the insertion pins 9 can be inserted into the gaps 15. The upper lids 13 of the corrugated fiberboard box 11 are erected, and the L-shaped supporting plate 7 is made to meet the leading end surfaces of the adjacent upper lids 13, and at the same time, the insertion pins 9 are adjusted to the gaps 15 of respective upper lids 1 and inserted to connect and fix the adjacent upper lids 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corrugated box flap stopper, and more particularly to a corrugated box flap stopper, for example, a stopper capable of holding adjacent lids in an upright position.

[0002]

2. Description of the Related Art Cardboard boxes, which are very often used as storage or transport containers, are packed by closing the upper lid and fixing them with adhesive tape or the like. They are used with their lids standing up because of the need to increase them. That is, as shown in FIG. 15, four upper lids 3 of the corrugated cardboard box 1 are erected, the ends of the adjacent upper lids 3 are aligned with each other, and the corners of these four corners make the front side or the inner side of the upper lid 3 and further the both sides. The general adhesive tape 5 is fixedly attached to and contacted with each other to form a large cardboard box with the upper side opened.

[0003]

However, in order to set up the four upper lids 3 of the corrugated cardboard box 1 and fix them with the adhesive tape 5, the adhesive tape 5 is cut to an appropriate length and the ends are aligned. It was necessary to fix the adhesive tapes 5 on the front and back surfaces of the upper lid 3 while raising them, which was a troublesome work. Furthermore, since the upper lids 3 after assembly are simply fixed to each other with the flexible adhesive tape 5, the corner portions of the upper lid 3 are easily deformed, so that the corrugated cardboard boxes 1 are stacked and loaded. Was not preferable.

The present invention has been made to solve the above-mentioned conventional drawbacks, and it is possible to reliably and easily connect and fix adjacent flaps of a corrugated cardboard box in an upright state. The purpose of the present invention is to provide a flap stopper that is difficult to deform.

[0005]

In order to solve such a problem, a flap stopper for a corrugated cardboard box according to the present invention has a plurality of insertion pins arranged to be inserted into a space from an end face of the flap of the corrugated cardboard box. A first insertion member, and a second insertion member that is connected to the first insertion member in a rectangular shape and has a plurality of insertion pins that are inserted into the gap from the end surface of the flap adjacent to the flap. Has been done.

Further, according to the present invention, the first and second insertion members are provided with an insertion groove to be inserted into the front end portion of the flap, and the insertion pins are arranged in the insertion groove or the insertion groove is inserted. It is also possible to form a protruding piece on the back surface side of the bottom portion or to project a boss on the back surface side of the insertion groove bottom portion.
Further, according to the present invention, a sandwiching piece for sandwiching the flap is formed on the first and second insertion members along the arrangement of the insertion pins, or the first and second insertion members are connected via a hinge. A configuration in which they are connected is also possible.

[0007]

In the present invention provided with such means, the first and second insertion members are connected in a rectangular shape, and the first and second insertion members are inserted into the gap from the end face of the flap which is raised in the cardboard box. When the insertion pin of the insertion member is inserted, the adjacent flaps of the corrugated box are connected and fixed. In addition, when the first and second insertion members are provided with an insertion groove to be inserted into the front end of the flap and the insertion pins are arranged in the insertion groove, the front end of the flap of the corrugated board box is moved to the first position.
Also, it is easy to fit the second insertion member, and in the configuration in which the protruding piece or the boss is provided on the rear surface side of the bottom of the insertion groove, another loaded cardboard box is unlikely to be displaced.

Further, in the structure in which the first and second insertion members are provided with a sandwiching piece for sandwiching the flap along the arrangement of the insertion pins, the folded flap is stopped or stopped by the stopper of the present invention. The tool itself can be temporarily supported temporarily, and in the configuration in which the first and second insertion members are connected via a hinge, the expansion angle between the first and second insertion members is arbitrary.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are a perspective view and a bottom view showing an embodiment of a stopper according to the present invention. 1 and 2, the stopper A of the present invention is a support plate 7 formed in an L shape.
And a plurality of insertion pins 9 projecting from the lower surface of the support plate 7.

The support plate 7 and the insertion pin 9 may be formed by integrally molding a synthetic resin such as polypropylene resin or ABS resin, or a metal material. Although not shown, the insert pin 9 formed separately from the support plate 7 is driven downward from above the support plate 7 like a nail, or the head of the insert pin 9 is screwed into the lower surface of the support plate 7. You may comprise. The insertion pin 9 that hangs from the lower surface of the support plate 7 is formed in such a size that it can be inserted into the void 15 in the tip surface of the adjacent upper lid (flap) 13 of the corrugated board box 11.
5 are arranged at a pitch that can be inserted.

In general, the corrugated board which constitutes the corrugated board box 11 is formed by sandwiching a corrugated middle board and has a corrugated space 15 in between.
(See FIG. 4, which will be described later), and since the void 15 is opened at the tip of the cardboard box 11, the support plate 7
The insertion pin 9 is formed so that it can be inserted into the space 15. However, since the cardboard box 11 is made of paper, the insertion pins 9 can be press-fitted even if there is a slight difference between the dimensions and the arrangement pitch of the insertion pins 9 and those of the voids 15, and there is little hindrance to assembly. .

In the stopper A of the present invention, the upper lid 13 of the corrugated cardboard box 11 is erected, the L-shaped support plate 7 is fitted to the leading end surface of the adjacent upper lid 13, and the insertion pins 9 are arranged as shown in FIG. By inserting the top lid 13 into the gap 15 at the front end surface, the adjacent top lids 13 can be connected and fixed. like this,
Since the stopper A is composed of the support plate 7 and the insertion pin 9, the structure is simple, and it is not necessary to use the adhesive tape 5 cut into an appropriate length as in the conventional case, and each end is aligned and erected. By inserting the insertion pin 9 of the support plate 7 into the gap 15 of the upper lid 13 from the opening end, the adjacent upper lids 13 can be easily fixed and the assembling work is also easy.

Further, the cardboard box 11 after assembly is
Since the tip end surface of the upper lid 13 is held by the stopper A made of resin or metal, the corners of the connected upper lid 13, particularly the tip portion, are less likely to be deformed. 1 shows a combination of a pair of adjacent upper lids 13 and one stopper A of the cardboard box 11, but the same applies to the other three corners (corners).

The corrugated board B of the corrugated board box 11 is
As shown in FIG. 4, in the case where the voids 15 are arranged in a plurality of stages, as shown in FIG. 5, if the insertion pins 9 are also arranged in a plurality of rows in accordance with the rows of the voids 15, a fixed strength is obtained. Will also improve. The same applies to the following embodiments. By the way, in the configuration of FIG. 1, a plurality of insertion pins 9 are arranged and supported by the support plate 7 in a rectangular shape, but a member supporting the insertion pins 9 may have a known structure other than the support plate 7. Furthermore, the insertion pin 9 is required to have a length such that it can be inserted into the upper lid 13 and cannot be removed very easily, and it is suitable that it is 5 mm or more, preferably 1 to several cm.

Next, another embodiment of the stopper A according to the present invention will be described. In the stopper A shown in FIGS. 6 and 7, a short piece 17 that hangs downward is integrally provided on the inner L side of the support plate 7 while protruding vertically on the outer L side of the support plate 7. The long piece 19 is integrally projected. An insertion groove 21 is formed on the lower surface of the support plate 7 by the short piece 17 and the long piece 19.
The insertion pin 9 is located in the insertion groove 21, and the tip of the adjacent upper lid 13 of the cardboard box 11 is inserted into the insertion groove 21.

That is, it is preferable that the insertion groove 21 has an inner width slightly smaller than or larger than the thickness of the upper lid 13 so that the upper lid 13 can be easily inserted and no play occurs after the insertion. Further, the long piece 19 extending to the upper surface side of the support plate 7 (the rear surface side of the bottom of the insertion groove 21) is cut near the bent portion of the support plate 7, and as described later, the corrugated cardboard to which the stopper A is fixed. A cardboard box 11 separate from the box 11 is provided with a support plate 7
It is a protruding piece that comes into contact with the loaded corrugated cardboard boxes 11 from the side when they are loaded so as to abut.

In the stopper A having such a structure, as shown in FIG. 7, the tip portions of the adjacent upper lids 13 of the corrugated cardboard box 11 are inserted into the insertion grooves 21, so that the tips of the respective upper lids 13 are inserted. The upper lid 13 is more easily fixed to the upper lid 13 and is firmly fixed to each upper lid 13, and the corner portions of the upper lid 13 that are erected are more difficult to be deformed, and are not easily detached from the upper lid 13. Such a stopper A has a long piece 19 on the upper side as shown in FIG. 8 when the insertion pin 9 is inserted into the gap 15 of the upper lid 13 by inserting the tip portions of the adjacent upper lids 13 of the cardboard box 11. Since it extends so that it protrudes, if another cardboard box 11 is placed on the four stoppers, it will fit between the long pieces 19 and the placed cardboard box 11
Are held between the long pieces 19 and are unlikely to shift even when stacked in multiple stages.

The stopper A shown in FIGS. 9 and 10 is also used.
The swelling portion 9a is formed in the middle of the insertion pin 9, and the boss 23 is provided so as to project inside the long piece 19 on the upper surface of the support plate 7. When the bulging portion 9a of the insertion pin 9 is formed in this way, the insertion pin 9 is press-fitted into the gap 15, which makes it difficult for the insertion pin 9 to come off, and the boss 23 is provided on the upper surface of the support plate 7. Therefore, as shown in FIG. 8, the boss 23 comes into contact with the bottom portion of another corrugated board 11 loaded on the corrugated board box 11 so that the boss 23 does not easily shift.

If the bulging portion 9a is formed so as to be narrowed toward the tip of the insertion pin 9, it will be easier to insert and will not come off easily. If the tip of the boss 23 is made sharp,
The cardboard box 11 will be more difficult to slip. further,
FIG. 11 shows a structure in which the holding piece 2 is provided on the outside of the long piece 19 of the support plate 7 so as to be folded back from near the bent portion of the support plate 7 along the bent portion.
5 is integrally projectingly provided, and a sandwiching portion is formed between the sandwiching piece 25 and the long piece 19.

In the stopper A having such a structure, when the upper lid 13 of the cardboard box 11 is folded back to the outside, the main body of the cardboard box 11 and the upper lid 1 are provided in the holding portion between the holding piece 25 and the long piece 19.
If you insert 3, you can stop the top lid 13,
The stopper A itself can be temporarily fixed to the flap 13. In the case of the stopper A as shown in FIG. 1, for example, which does not have the long piece 19, a holding portion is formed between the holding piece 25 and the insertion pin 9.

In each of the above-described embodiments, the insertion pin 9 is provided so as to project from the support plate 7 that is bent in an L shape, but the stopper A of the present invention is not limited to this, and a hinge mechanism is used. For example, the configurations of FIG. 12 and FIG. In the configuration of FIG. 12, for example, as shown in FIG. 6, in a configuration in which a short piece 17 hanging on the inner side of the support plate 7 and a long piece 19 projecting integrally on the outer side of the support plate 7 are linearly formed, In the middle part of 7, cut in a V shape from the inner side 2
7 has a shape in which it is integrally connected at the outer side portion, and one supporting piece 7 portion from the connecting portion 29 is used as a first insertion member 31, and the other supporting piece 7 portion is a second
Of the insertion member 33, and the support piece (second insertion member) 33 is bent at a right angle around the connecting portion to form an L-shaped stopper A.

The stopper A having such a structure is suitable especially when molded with a synthetic resin, and the connecting portion 29 thereof is a bulging mechanism and is bent into an L-shape when used. Further, in the configuration shown in FIGS. 13 and 14, the first insertion member 35 in which the insertion pin 9 is projected from the lower surface of the support plate 7 and the second insertion in which the insertion pin 9 is projected from the lower surface of the support piece 7 are provided. The members 37 are separated, and the support pieces 35a are projected from the first insertion members 35.
While the split pillar 35b is erected from a, the second insertion member 3
7, a supporting piece 37a is projected, a supporting hole 37b is provided in the supporting piece 37a, and the split column 3 of the first insertion member 35 is formed.
5b is rotatably inserted into the support hole 37b of the second insertion member 37.

The stopper A having such a structure is suitable when molded with a synthetic resin as in the structure of FIG.
A hinge mechanism is formed by the support 35a of the first insertion member 35 or the split post 35b and the support piece 37a or the support hole 37b of the second insertion member 37, and is bent into an L-shape when used. .

As described above, in the stopper of the present invention, it is sufficient that the first and second insertion members 31, 35 and 33, 37 are connected so that they can be formed in a rectangular shape, and the constitution of FIGS. Then, one side of the bent portion of the L-shaped support plate 7 may be considered as the first insertion member, and the other side may be considered as the second insertion member. Further, the stopper A of the present invention can be applied not only to the fixing of the upper lid 13 of the corrugated cardboard box 11 but also to fixing of the bottom lid and other flaps, and it is not necessary to use it for all corners. It can also be used for.

[0025]

As described above, according to the present invention, the first insertion member in which a plurality of insertion pins to be inserted into the gap from the end surface of the flap of the corrugated board is arranged, and the end surface of the flap adjacent to the first insertion member. A plurality of insertion pins, which are inserted into the space, are arranged in a second shape and are connected to the first insertion member in a square shape.
Since it has the insertion member of (1), the adjacent flaps of the corrugated cardboard box can be reliably and easily fixed in a standing state to form a large corrugated cardboard box, and the corners of the standing flap are less likely to be deformed. Then, in the configuration in which the first and second insertion members are provided with the insertion groove to be inserted into the front end portion of the flap and the insertion pins are arranged in the insertion groove, the front end portion of the flap of the corrugated cardboard box is It is easy to fit into the first and second insertion members, is hard to come off, and is easier to handle. Further, in the configuration in which the protruding piece or the boss is provided on the rear surface side of the bottom of the insertion groove, another loaded cardboard box is less likely to be displaced, and the number of loaded sheets can be increased. Further, in the configuration in which the first and second insertion members are provided with a sandwiching piece for sandwiching the flap along the arrangement of the insertion pins, the flap folded by the stopper of the present invention is stopped or the stopper itself is temporarily stopped. Temporarily fixed. Furthermore, in the configuration in which the first and second insertion members are connected via a hinge, the expansion angle between the first and second insertion members is arbitrary, and a state in which they are planarly extended is possible. Become.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a flange stopper for a cardboard box according to the present invention.

2 is a bottom view of the stop of FIG. 1. FIG.

FIG. 3 is a cross-sectional view showing an outline of a usage example of the stopper of FIG.

FIG. 4 is a schematic view showing an end surface of a corrugated board which constitutes a corrugated board box.

FIG. 5 is a schematic bottom view showing another example of the stopper according to the present invention.

FIG. 6 is a perspective view showing another example of a stopper according to the present invention.

7 is a schematic bottom view of the stop of FIG.

8 is a schematic front view showing a usage example of the stopper of FIG. 6. FIG.

FIG. 9 is a plan view showing another example of the stopper according to the present invention.

10 is a cross-sectional view of the stop of FIG.

FIG. 11 is a bottom view showing another example of the stopper according to the present invention.

FIG. 12 is a bottom view showing another example of the stopper according to the present invention.

FIG. 13 is a front view showing another example of the stopper according to the present invention.

14 is a diagram illustrating a hinge mechanism shown in the stopper of FIG.

FIG. 15 is a perspective view showing an assembled state of a conventional cardboard box.

[Description of Reference Signs] 1, 11 Cardboard box 3, 13 Upper lid (lid: flap) 5 Adhesive tape 7, 27a, 29a Support plate (first and second insertion member) 9 Insertion pin (first and second insertion) Member) 9a Bulging part 15 Gap 17 Short piece 19 Long piece 21 Insertion groove 23 Boss 25 Clamping piece 27 Notch 29 Connecting part 35 First insert member 35a, 37a Support piece 35b Split column 37 Second insert member 37b Support hole A Stopper B Corrugated board

Claims (6)

[Claims] 1. A first insertion member in which a plurality of insertion pins are inserted into an air gap from an end surface of a flap of a cardboard box, and a plurality of insertion pins are inserted into an air gap from an end surface of a flap adjacent to the flap. A flap stopper for a corrugated cardboard box, comprising: a second insert member that is individually arranged and connected to the first insert member in a square shape. 2. The cardboard box according to claim 1, wherein the first and second insertion members have an insertion groove to be inserted into a tip portion of the flap, and the insertion pins are arranged in the insertion groove. Flap stop. 3. The flap stopper for a corrugated board box according to claim 1, wherein a protruding piece is formed on the back surface side of the bottom of the insertion groove in the first and second insertion members. 4. The flap stopper for a corrugated board box according to claim 1, wherein a boss is provided on the back side of the bottom of the insertion groove in the first and second insertion members. 5. The corrugated cardboard box according to claim 1, wherein the first and / or the second insertion member is formed with a sandwiching piece that sandwiches the flap along an arrangement of the insertion pins. Flap stop. 6. The corrugated board box flap stopper according to claim 1, wherein the first and second insertion members are connected via a hinge.