JP3092754U - Cardboard return box - Google Patents

Abstract

(57) [Problem] To provide a corrugated cardboard box that can fix a flap serving as a top cover without using a sealing material and without increasing the number of steps. SOLUTION: Two sets of side plates 2a, 2b, 2c, 2d which are respectively opposed to each other, bottom flaps 4a, 4b, 4c, 4d extending from lower edges of the respective side plates, and upper edges of the respective side plates. And a pair of inner flaps 3b and 3d and a pair of outer flaps 3a and 3c, respectively, which are arranged to face each other, and projecting portions 6 are formed on both edges of each of the outer flaps. A slot 7 corresponding to the protrusion of the outer flap is formed in the inner flap, and after the inner flap is bent inward, the outer flap is thicker than the position where the inner flap is bent. A corrugated cardboard box 1 which is bent inward at a slightly higher position and locked by inserting a projection of the outer flap into a slot of the inner flap.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention relates to a cardboard returnable box, in particular, without using a sealing material such as an adhesive tape. It relates to a cardboard returnable box that can be used over and over again.

[0002]

[Prior art]

  Conventionally, it is made of plastic or wood as a returnable box that can be used over and over again. Returnable boxes are used.   Such a plastic or wooden returnable box has high strength and durability. Although it is suitable for repeated use, it is expensive to manufacture and bulky because it cannot be folded. There is such a problem. Also, plastic return boxes are incinerated when they are disposed of. There are also problems such as being unable to dispose.

[0003]   As a solution to these problems related to manufacturing costs and disposal, A rucksack box is proposed. Corrugated cardboard boxes have strength and durability Are inferior to plastic and wooden ones, but they are cheaper to manufacture and easier to fold. It can be folded and, after repeated use, can be incinerated or recyclable. The advantage is that it is also easy. Therefore, when transporting relatively lightweight items, If this is the case, and if it is used only a few times, the cardboard cardboard The box can be preferably used.

[0004]   When goods are transported using such cardboard returnable boxes, the outer flap on the top surface is usually used. The wraps are sealed with adhesive tape, but as the tape is repeatedly removed In addition, the surface of the corrugated board is peeled off and the tape cannot be fixed. So the top A vinyl tape is attached to the flap of the to provide releasability and reinforcement. It is also used such as laminated paper or resin coating.

[0005]   For example, when the outer flap is folded horizontally inside the box, its upper edges (faces) In the so-called AI type in which The edges are reinforced with protective tape such as vinyl tape, and the product is put in and transported. In that case, the tape for sealing is stopped from above the protective tape. Also, when opening For this, carefully remove the sealing tape or cut the sealing tape with a knife or a cutter. It is common to decline.

[0006]

[Problems to be solved by the device]

  However, as mentioned above, the step of fixing the tape with the sealing tape from above the protective tape. In the case of a ball-carrying box, the cost increases due to the use of sealing material, and protection is also required. Increases man-hours such as tape attachment and detachment work for sealing tape when opening and closing There is a problem. Also, when cutting the sealing tape when opening, use a knife or cutter. There is also a risk that the worker will be injured by accident.   Furthermore, when disposing of the product, it is necessary to completely remove the protective tape etc., especially for recycling. However, there is also the problem of lack of recyclability.

[0007]   The present invention has been made in view of the above problems, and uses sealing materials. In addition, the flap that serves as the top lid can be fixed without increasing the number of steps. The purpose is to provide a cardboard returnable box.

[0008]

[Means for Solving the Problems]

  To achieve the above object, according to the present invention, a cardboard returnable box is provided. Two sets of side plates, which are arranged to face each other, and a bottom flap extending from the lower edge of each side plate. And a pair of inner flaps that extend from the upper edges of the side plates and face each other. And a pair of outer flaps, and protrusions are formed on both edges of each outer flap, In addition, each inner flap is formed with a slot corresponding to the protrusion of the outer flap. After the inner flap is folded inward, the outer flap is replaced by the inner flap. Bend inward at a position that is higher by the thickness of the corrugated board than the position where the And the protrusion of the outer flap is inserted into the slot of the inner flap. A cardboard returnable box is provided which is characterized by being locked by It

[0009]   In this way, in the cardboard returnable box, it is formed on both edges of the opposing outer flaps. If the projected part is inserted into the slot formed in the inner flap and locked, , The top flap is fixed without using any sealing material and without increasing man-hours. be able to. When opening, pull out the protrusion of the inner flap from the slot and open it. Therefore, it is safe because it is not necessary to use a knife or the like. Further disposal There is no need to remove the tape when processing, and it has excellent recyclability. ing.

[0010]   The width of the outer flap is preferably smaller than the width of the inner flap.   If the width of the outer flap is shorter than the width of the inner flap, Even if a protrusion is formed on the top of both edges of the flap, the slot corresponding to this protrusion is used for the inner flap. It can be formed at an appropriate distance from the bending position of the outer flap, Stable when the protrusion is inserted into the slot, making it difficult to remove.

[0011]   Further, it is preferable that the projection of the outer flap is inclined downward. Yes.   In this way, if the protrusion of the outer flap is formed so as to be inclined downward, the protrusion When it is inserted into the groove of the inner flap, it will not come off easily, and it can be locked more securely. You can

[0012]   Moreover, it is preferable that the protrusion of the outer flap has a length of 4 to 6 cm.   If a protrusion having such a length is formed, it is easy to insert it into the groove hole of the inner flap. Also, it is hard to come off during transportation and has good strength.

[0013]   Also, bottom flaps extending from the lower edges of the side plates are locked together. Preferably there is.   If the bottom flaps are locked together like this, open the box when not in use. It can be folded and easily assembled for use.

[0014]   In addition, the returnable box is constructed from a piece of stamped cardboard. It is preferable that the   If it can be assembled from a single cardboard in this way, it will be manufactured and assembled. Easy to use, keeps manufacturing costs low, and has strength as a returnable box. Will also be expensive.

[0015]

[Embodiment of device]

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The present invention is not limited to this.   FIG. 1 shows an example of a cardboard returnable box according to the present invention, and FIG. Shows the state.   The return box 1 includes two sets of side plates 2a, 2b, 2c, which are arranged to face each other. 2d and bottom flaps 4a, 4 extending from the lower edges of the side plates 2a, 2b, 2c, 2d b, 4c, 4d and extending from the upper edges of the side plates 2a, 2b, 2c, 2d, respectively. One pair of inner flaps 3b and 3d and one pair of outer flaps 3a and 3c that are arranged to face each other. And have.

[0016]   On both edges of the outer flaps 3a and 3c, protrusions 6 that are inclined downward are formed, On the other hand, the inner flaps 3b and 3d have grooves corresponding to the protrusions 6 of the outer flaps 3a and 3c. Each hole 7 is formed. Then, as shown in FIG. 1, the outer flap 3 Bend a and 3c inward and insert the projection 6 into the slot 7 of the inner flaps 3b and 3d. As a result, the outer flaps 3a, 3c are locked without using a sealing material. ing.

[0017]   The cardboard returnable box 1 will be described in more detail.   The returnable box 1 of the present invention has four side plates 2a, 2b, 2c as shown in FIG. , 2d are continuous, and a flap 3 is provided from the upper edge of each side plate 2a, 2b, 2c, 2d. a, 3b, 3c and 3d respectively extend. With a standard A-1 cardboard box , The shorter flap is the inner flap, the longer flap is the outer flap, In this returnable box 1, the shorter width is the outer flaps 3a and 3c, and the longer width is the inner flap 3 b and 3d. In this way, the width of the outer flaps 3a and 3c is equal to that of the inner flap 3 If the width is shorter than the width of b and 3d, it corresponds to the protrusion 6 of the outer flaps 3a and 3c. The slot 7 is formed in each inner flap 3b, 3d and the outer flaps 3a, 3c are bent at different positions. It can be formed with a suitable distance. This allows the outer flaps 3a and 3c to project. It is stable when the part 6 is inserted into the slot 7, and it is hard to come off even if it is shaken during transportation. In addition to the advantage, the inner flaps 3b and 3d rise up and try to open. Power can be suppressed.

[0018]   At the upper portions of both edges of the outer flaps 3a and 3c, a substantially parallelogram-shaped protrusion 6 is provided below. That is, it is formed so as to project toward the side plates 2a, 2b, 2c, 2d. . With the projection 6 having such a shape, the inner flaps 3b and 3d can be inserted into the groove hole 7. Is easy, and after inserting, it is difficult to pull out because it is caught in the slot 7. Note that Regarding the size of the protrusion 6, it is easy to insert the inner flaps 3b and 3d into the groove hole 7. It may be decided as appropriate considering the difficulty of pulling out after insertion and the strength, but it is too short If it is too long, it may come off during transportation. There is a possibility that problems such as difficulty in inserting into 7 may occur. Thus, for example, in FIG. The projection 6 having a substantially parallelogram shape as shown in FIG. 2 is formed from both edges of the outer flaps 3a and 3c. If the length is 4 to 6 cm, the inner flaps 3b and 3d are easily inserted into the groove holes 7 Also, it is hard to come off even if it shakes during transportation, and it also has good strength. .

[0019]   On the other hand, the inner flaps 3b and 3d have boundaries (crease lines 8b and 2d) with the side plates 2b and 2d. 8d), a total of four slots 7 corresponding to the protrusions 6 of the outer flaps 3a and 3c are formed. Is made. Into this slot 7, the protrusion 6 of the outer flap 3a, 3c can be inserted. It is formed to have a thickness that is approximately the same as or slightly wider than the thickness of corrugated cardboard. In addition, when the groove 7 is formed large with respect to the protrusion 6 of the outer flaps 3a and 3c, the protrusion Since it is easy for 6 to come off, it is preferable to form it in a size corresponding to the protrusion 6. Good

[0020]   The corrugated cardboard 1 ′ has crease lines 8a, 8b, 8c, 8d, 9, 13 at predetermined positions. A crease line is formed between the side plates 2a, 2c and the outer flaps 3a, 3c. 8a and 8c are fold lines 8b between the side plates 2b and 2d and the inner flaps 3b and 3d, It is formed at a position higher than 8d. Specifically, the inner flaps 3b and 3d are folded. The height of the crease lines 8b and 8d is the height of the crease lines 8a and 8c of the outer flaps 3a and 3c. It is preferable to set the position lower than the corrugated board thickness, for example, about 3 to 10 mm. Yes. As described above, the crease lines are formed so that the folding positions of the outer flaps 3a and 3c become higher. After the inner flaps 3b and 3d are bent inward by forming 8b and 8d, , It is easy to bend the outer flaps 3a, 3c inward, and It is possible to effectively suppress the action of the caps 3b and 3d trying to return upward.

[0021]   From the lower edge of each side plate 2a, 2b, 2c, 2d, bottom flaps 4a, 4b, 4c, 4 d respectively extend, and these bottom flaps 4a, 4b, 4c, 4d are mutually It is adapted to be locked to a porcelain to form the bottom surface of the box 1.   Also, a glue margin (joint margin) 5 is formed on one side edge of the side plate 2a. The margin Having only one location simplifies manufacturing and facilitates storage before assembly. .

[0022]   The corrugated cardboard 1'having such a developed shape can be obtained by ordinary punching. it can. For example, using a die with a punching blade, press the cardboard material once with a press machine. The side plates 2a, 2b, 2c and 2d and the flaps 3a, 3b and 3c are punched at the same time. , 3d and crease lines (ruled lines) 8a, 8b, 8c, 8d, etc. can be formed. it can. The corrugated cardboard 1'which has been punched out has an inner flap 3b as shown in FIG. , 3d and the upper edges of the outer flaps 3a, 3c are aligned in height, and the bottom flap is The heights of the lower edges of the pipes 4a, 4b, 4c, 4d are also aligned, and flow through the line. It's getting easier. Therefore, machining such as punching is performed continuously by machine work. Can be done on a regular basis.

[0023]   Assemble the returnable box 1 from a piece of cardboard 1'perforated as described above. As a result, the manufacturing cost can be kept low and the strength of the box 1 itself is high. Become. In addition, the corrugated board material used is the weight of the items to be stored and It may be appropriately selected according to the number and the like. For example, to carry relatively heavy items If it is used as a returnable box, double or triple reinforced corrugated cardboard (for example, The strength can be made higher by using a loose AB stage).

[0024]   To make the returnable box 1 shown in FIG. 1 from the developed corrugated cardboard 1 ′ shown in FIG. Bend along the crease line 13 between the plates 2a, 2b, 2c, 2d and set the glue allowance 5 to the side plate. It is attached to 2d via an adhesive or the like. When not in use or transporting the box 1 itself or When storing, etc., you can stack them in this state and store, transport, etc. without being bulky. It can be performed.

[0025]   When accommodating an object, first, the bottom flaps 4a, 4b, 4c, 4d are locked to each other. To form the bottom of the box 1. Specifically, bend the bottom flap 4d inside the box 1. Then, the bottom flaps 4a and 4c are bent. Bend the bottom flap 4b further , Push the insertion piece 11 so that the insertion piece 11 at the tip is on the bottom flap 4d. In this way, it is inserted inside the recess 12. This forms the bottom of the box 1. You can In addition, the bottom of the box 1 is a lock type or a one-touch type, a tape, etc. It is preferable to be able to easily form the bottom surface without using the sealing material of Good

[0026]   By forming the bottom, an object can be stored in the box 1. Things in box 1 After inserting, fold the inner flaps 3b, 3d inward and then the outer flaps 3a, 3d c is bent inward so that the protrusions 6 of the outer flaps 3a and 3c are folded to the inner flaps 3b and 3d. It is inserted in the slot 7 of. As a result, the outer flaps 3a and 3c can be removed without using a sealing material. It can be locked easily and surely.   By locking the outer flaps 3a and 3c in this way, during transportation, etc. Even if the box is rocked, the protrusion 6 is unlikely to come out of the slot 7, and Can be safely transported to.

[0027]   In addition, when opening at the shipping destination, the protrusions 6 of the outer flaps 3a and 3c should be replaced by the inner flaps. The inside of the box 1 can be taken out by pulling out from the slots 7 of 3b and 3d. This and Since there is no need to use a cutter or the like, the operator is not injured.   As shown in FIGS. 1 and 2, formation of the protrusion 6 of the outer flaps 3a and 3c As a result, the indentations 10 on both edges of the inner flaps 3b and 3d are necessarily formed. When opening, it is possible to put a hand in this recess 10, so the inner flaps 3b, 3d Has the effect of being easy to open.

[0028]   After taking out the items in the box 1, lock the bottom flaps 4a, 4b, 4c, 4d. It can be folded by unraveling. And, for example, stacking some of them together Return to the shipper, and at the shipper, assemble box 1 in the same manner as above and store the items again. Can be shipped.   Thus, the box 1 of FIG. 1 is assembled and the flaps 3a, 3b, 3c, 3d on the upper surface are assembled. Easy to lock and fold, and can be used repeatedly as a returnable box .

[0029]   The present invention is not limited to the above embodiment. The above embodiment is an example The present invention is substantially the same as the technical idea described in the scope of claims for utility model registration of the present invention. Anything that has the same structure and similar effects It is included in the technical scope of the invention.   For example, in the above embodiment, a cardboard returnable box of the modified A-1 type will be described. However, it is not limited to this type, and the side plates 2a and 2c have handles. A hole for use may be formed to make it easier to carry.

[0030]

[Effect of device]   The cardboard carrying box according to the present invention is formed on both edges of the opposing outer flaps. The protrusion is inserted into the slot formed in the inner flap to lock it. Fix the flap that will be the top lid without using any materials and without increasing the number of steps be able to. Also, it is safe because you do not need to use a knife when opening the package. In addition, it is recyclable because there is no need to remove the tape when disposing of it. Is also excellent.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a cardboard returnable box of the present invention.

FIG. 2 is a development view of the cardboard carton box shown in FIG.

[Explanation of symbols]

1 ... cardboard returnable box, 1 '... unfolded cardboard,
2a, 2b, 2c, 2d ... Side plate, 3a, 3c ... Outer flap, 3b, 3d ... Inner flap, 4a, 4b, 4c,
4d ... bottom flap, 5 ... glue margin (joint margin), 6 ... protrusion,
7 ... Slot, 8a, 8b, 8c, 8d ... Crease line, 9
... Crease lines, 10 ... Recesses, 11 ... Inserts, 12 ... Recesses, 13 ... Crease lines.

Claims (6)

[Scope of utility model registration request] 1. A returnable box made of corrugated cardboard, comprising two sets of side plates that are arranged to face each other, a bottom flap extending from a lower edge of each side plate, and a bottom flap extending from an upper edge of each side plate. It has a pair of inner flaps and a pair of outer flaps that are arranged to face each other, and protrusions are formed on both edges of each of the outer flaps, and each of the inner flaps corresponds to the protrusion of the outer flap. After the inner flap is bent inward, the outer flap is bent inward at a position higher by the thickness of the corrugated board than the position where the inner flap is bent, and A corrugated cardboard carrying box characterized in that the protrusion of the outer flap is locked by being inserted into the slot of the inner flap. 2. The corrugated cardboard return box according to claim 1, wherein a width of the outer flap is shorter than a width of the inner flap. 3. The corrugated cardboard return box according to claim 1, wherein the projection of the outer flap is inclined downward. 4. The length of the protrusion of the outer flap is 4 to 6
The cardboard carton box according to any one of claims 1 to 3, characterized in that it is cm. 5. The corrugated board corrugated board according to claim 1, wherein bottom flaps extending from the lower edges of the side plates are locked to each other. box. 6. The corrugated cardboard return box according to claim 1, wherein the returnable box is assembled from a single punched corrugated cardboard.