JPH09249217A - Paper container having nearly-octagonal body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain high buckling strength for a substitute of a one-to can, a 4.765-US gallon can, by forming a nearly-octagonal cylindrical body and top and bottom lid members out of water-resistant cardboard. SOLUTION: This paper container is made of cardboard whose front and rear are covered with a resin laminate and, is composed of three members consisting of a body 21 and top and bottom lid members 20. An adhesive piece 13 is stuck to a side plate 12 so that they match, and lock pieces (f) are folded inside. Inside plates 14 are folded inside so as to enwrap the lock pieces (f), and a projections (t) are inserted into lock holes (e), thereby forming the top and bottom lid members 20. On the other hand, a blank plate is formed as a body part 21 in which body plates 16 and corner plates 18 are alternately provided so as to be continuous and adhesive pieces (d) are formed at the ends of the body plates 16. By folding it along the creases and joining together the adhesive pieces (d) and the corner plates 18 at the ends, a body part 21 in the form of a nearly-octagonal cylinder is formed. The body plates 16 of the body part 21 and the insides of the corner sides of the top and bottom lid members 20 are brought into contact with each other to close the lids. Thus, it can be used as the high buckling strength paper-container for storing solid matter or the like.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a commercial paper container containing an inner bag filled with a solid material such as marine products and oils or fats, or a liquid, and more specifically, a substitute for a metal canister or a back-in container. The present invention relates to a paper container having a strong, substantially octagonal body as a box.

[0002]

2. Description of the Related Art Conventionally, solid or viscous substances such as marine products, foods, fats and oils are put in an inner bag made of a resin film and used as a container for storing, storing and transporting a metal canister (usually one container). (A container called a can or petroleum can, hereinafter referred to as a can.)
It is widely known as a tough, yet reusable commercial container. In addition, for liquids, a back-in box in which an inner bag made of polypropylene or the like is fitted with a spout, a seasoning such as soy sauce or a drink such as juice is filled, and an outer box such as corrugated board is stored is also for commercial use. Widely used. To pour out liquid such as seasonings, cut off the spout outlet that was previously formed on one side of the body of the outer box or the canopy, and engage the flange of the spigot attached to the inner bag at this location. The liquid is poured out from the spout without stopping.

[0003]

However, the above-mentioned metal one-ton can is corroded by salt or moisture, and is difficult to dispose of when it is discarded. Therefore, there was a problem in the efficiency of the storage space. On the other hand, a back-in-box made of a corrugated cardboard box also has a problem in the strength of the cardboard box, and when a shock such as a drop is applied, the cardboard is distorted or damaged and the inner bag is broken. Further, even in an outer box made of corrugated cardboard, it is difficult to maintain its shape because it easily absorbs moisture and water, and in such a state, it cannot be transported and there is a risk that the inner bag may be broken.

Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to use a water-resistant cardboard as an alternative to a one-toed can and to form a container body with a substantially octagonal body. (EN) It is possible to provide a paper container having a substantially octagonal body portion that has a buckling strength, is easy to dispose of, and is excellent in the efficiency of storage space when not in use.

[0005]

In order to achieve the above object, a paper container having a substantially octagonal body according to the present invention is formed of water-resistant cardboard with resin laminated on the front and back surfaces. A side wall plate 12, which is a paper container composed of three members of a body portion 21 and an upside-down lid member 20, 20, having locking pieces f, f, f, f at both ends on the upper and lower sides of the lid plate 11, 12 and the sticking pieces 13 and 13 are connected to each other, and locking holes e, e, e, e, outer plates 15 and 15 and protrusions t, t, t, are formed on the left and right sides of the lid plate 11.
A blank plate is formed by arranging inner plates 14, 14 having t in series, and the side plates 12, 12 are attached so that the attachment pieces 13, 13 are attached to each other, and the locking pieces f, f, f, f are attached. Is folded inward, the inner plates 14, 14 are folded inward so as to wrap the locking piece, and the protrusions t, t, t, t are locked in the locking holes e, e,
e and e, the lid members 20 and 20 of the upside and downside are formed, while the body plates 16, 16, 16 and 16 and the square plates 18 and 1 are formed.
A blank plate of the body portion 21 in which 8, 18, 18 are alternately arranged and an adhesive piece d is provided at an end portion of the body plate 16 is formed and is bent along a folding line to form the adhesive piece d and the end plate 18 By attaching and, a substantially octagonal tubular body portion 21 is formed.
The gist of the invention is to close each lid 16 by bringing the insides of the side surfaces of the top and bottom lid members 20, 20 into contact with each other.

Further, the paper container having the substantially octagonal body portion of the present invention has a substantially convex cutout portion s on one surface of the body plate.
The main point is that it is provided with perforations.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments. FIG. 1 is a development view showing a blank plate of a lid member of a paper container in one embodiment of the present invention, and FIG.
It is a development view showing the blank board of the above-mentioned trunk. FIG.
FIG. 4 is a perspective view showing constituent members of a paper container, and FIG.
It is explanatory drawing which shows one usage example of the completed paper container, and FIG.
FIG. 4 is an explanatory diagram showing an example in which a paper container is used as an outer box for liquid. FIG. 6 is a development view showing a blank plate of a lid member in another embodiment.

The present invention is a paper container 10 which is composed of a water-resistant cardboard-made substantially octagonal tubular body portion 21 and three top and bottom lid members 20 and 20, which are substantially octagonal. By covering the top and bottom of the tubular body 21 with the lid members 20 formed in the same shape, as a paper container for storing a solid material having high buckling strength (compressive strength), By providing a cutout portion s with a perforation for taking out the spout 30 in an inner bag filled with a liquid or the like on one surface of the body plate 16 of the body portion 21, it is durable as a substitute for a back-in-box made of corrugated cardboard or the like. An outer box for various liquids can be obtained.

The cardboard base material used in the paper container of the present invention has, for example, a basis weight of about 1200 kg / m ² and a thickness of about 1.
A water-resistant resin having a polyethylene resin extrusion laminated or polypropylene film laminated on the front and back surfaces of a cardboard of 5 to 1.8 mm was used.
The thickness of the paper and the film to be laminated are not limited to those in the present invention, and can be appropriately selected as long as the material has water resistance and buckling strength.

The top and bottom lid members 20 and 20 are used as top and bottom lid members by making two blank plates in the form shown in FIG. The form of this lid member is not limited to the form shown in FIG.

When this paper container is used as it is, as shown in FIG. 4, it can be used in the same manner as a conventional metal one-ton can by fixing and sealing it on the top and bottom with a PP band or the like. At the same time, it becomes possible to stack these containers by the substantially octagonal body portion 21. Also, the size of this paper container is not limited to the same size as the Ito can, but the size can be changed according to each application, thereby expanding the range of use and the body part. If the length becomes short, further buckling strength can be obtained.

Further, by using an inner bag made of polypropylene film or the like with the spout plug 30 as a constituent member, a paper container for liquid can be obtained. That is, on one surface of the body plate 16 of the body portion 21, a cutout portion s that can be cut out at the same position as the spout 30 of the inner bag by a perforation when necessary.
If it is provided, it can be used as it is in the same manner as a conventional one-dose can. When using a mouth plug, as shown in FIG. 5, the cutout s is broken and the flange of the mouth cap of the inner bag is broken. Body plate 1
The stopper is fixed by locking the cut-out plate member 6 with the cut-out plate member reversed and inserting it between the flanges of the stopper, and the filled liquid can be directly poured out from the paper container. The shape of the cutout portion for the spout plug is not limited to the present invention, and the cutout portion s can be provided in the lid member of the top portion and can be appropriately selected.

[0013]

The paper container having a substantially octagonal body according to the present invention can be disposed of by incineration or the like because it is a paper container made of water-resistant cardboard, and is easily affected by environmental damage. It can be carried out. Further, as seen in the related art, by using the substantially octagonal body portion 21 instead of the rectangular body portion, the buckling strength is remarkably improved, so that it can be repeatedly used. Body 2 before further use
1. Since the top and bottom lid members 20, 20 are folded together, storage and transportation efficiency is good.

[0014]

The present invention will be described in detail below with reference to examples. As shown in FIGS. 1 and 2, the basis weight is 1200 Kg / m.
^{2 is used} for the front and back surfaces of a cardboard having a thickness of 1.7 mm, using a base material which is water-resistant by extrusion laminating polyethylene resin. It is a paper container composed of three members. First, on the upper and lower sides of the lid plate 11, locking pieces f,
Side plates 12, 12 having f, f, f and affixing pieces 13, 13 are arranged in series via folding lines a, a, and further locking holes e, e, e, on the left and right sides of the cover plate 11. e is provided, and the projections t, t, t,
Inner plates 14 and 14 having t are connected in series to cover members 20 and 2.
Zero blank plates were formed. This assembly is performed by the side plate
The adhesive pieces 13 and 13 are folded and adhered to each other so as to be aligned with each other and folded up, and the locking pieces f, f, f, f are folded inward from the fold line, and the locking pieces f, f, The inner plates 14, 14 are bent inward from the fold lines a, a so as to wrap f, and the projections t, t, t, t are inserted into the locking holes e, e, e, e to form a lid member. Two blank plates of this lid member were produced to form a lid member at the top and a lid member at the bottom.

As described above, the lid members 20 and 20 are not limited to those shown in FIG. 1. For example, a blank plate as shown in the development view of FIG.
The sticking pieces 13, 13 are folded and stuck together so as to match with 2, and folded up, and the locking pieces f, f, f, f are folded inward from the folding line, and the locking pieces f, f, f, The inner plates 14, 14 are folded inward from the folding lines a, a so as to wrap the f, and the protrusions t, t, t, t are inserted into the locking holes e, e, e, e to form a lid member. Any shape may be used as long as it can be put on the body portion in a shape, and the inside of each of the four side surfaces of the lid member abuts on the body plate on the four sides of the body portion.

On the other hand, as shown in FIG. 2, the body portion 21 of the paper container is such that the square plates 18, 18, 18, 18 are alternately arranged on the body plates 16, 16, 16, 16 through the folding lines a, a. These are arranged in series, and each square plate 18 is bent from each folding line a, a, and an adhesive piece d
And a rectangular plate 18 at the end are attached to form a substantially octagonal tubular body 21. The lid member 2 is placed on the top and bottom of the body portion 21.
A paper container is obtained by covering with 0 and 20. On this occasion,
The inside of each side surface of the lid member is brought into contact with the outside surface of the body plate tip end of the body portion to close the lid in a sealed state.

Further, as shown in FIG. 2, a cutout portion s formed by perforations is provided on one surface of the body plate 16 of the body portion 21. This paper container is filled with a liquid such as juice. By accommodating an attached polypropylene inner bag, it can be used as an outer box (back-in box) for liquids. That is, the cut-out portion s is broken to serve as an outlet for the plug 30 of the inner bag stored. That is, FIG.
As shown in (1), since the spout 30 can be taken out and fixed to the cutout portion s of the body plate 16 by the cut-out plate material with the flange of the spout 30 being locked, it can be used as a paper container for liquid. Therefore, when the solid matter is stored, it can be used as it is as a paper container without breaking the cutout portion s.

[0018]

As described above, the present invention has the following effects. In other words, a paper container made of water-resistant cardboard can be disposed of by incineration, etc.
Moreover, it can be easily performed with little influence such as environmental damage. Further, as seen in the related art, the buckling strength is remarkably improved by using the substantially octagonal body instead of the rectangular body, so that the body is strong and can be repeatedly used. Further, the size of the paper container can be freely changed according to the use, and the strength can be further increased by reducing the strength. In addition, since the body, canopy, and bottom lid are folded before use, storage and transportation efficiency is good, and they can be easily assembled before use. This paper container can be a liquid paper container (back-in-box) by adding an inner bag made of a resin film to form a four-member structure. That is,
By providing the cut-out portion at the same position as the stopper of the inner bag on the lid plate of the body or the top, it can be used as it is as a back-in box, and various excellent effects can be obtained.

[Brief description of drawings]

FIG. 1 is a development view showing a blank plate of a lid member for a paper container according to an embodiment of the present invention.

FIG. 2 is a development view showing a blank plate of a body of a paper container according to an embodiment of the present invention.

FIG. 3 is a perspective view showing constituent members of the paper container according to the present invention.

FIG. 4 is an explanatory view showing a usage example of the paper container of the present invention.

FIG. 5 is an explanatory diagram showing another example of use of the paper container of the present invention.

FIG. 6 is a development view showing a blank plate of a lid member in another embodiment of the present invention.

[Explanation of symbols]

 10 ... Paper container 11 ... Lid plate 12 ... Side plate 13 ... Adhesive piece 14 ... Inner plate 15 ... Outer plate 16 ... Body plate 18 ... Square plate 20 ... Lid member 21 ... Body part 30 ... Spigot a ... Folded line d ... Body part adhesive piece e ... Locking hole f ... Locking piece s ... Cutout portion t ... Protrusion

Claims (2)

[Claims] 1. A paper container comprising three members, a body and a top / bottom cover member, formed of water-resistant cardboard with a resin laminate on the front and back surfaces. A side plate having a locking piece and a sticking piece are continuously provided on a blank plate formed by continuously connecting a locking hole, an outer plate and an inner plate having a protrusion on the left and right sides of the lid plate. Attach the sticking piece to the side plate, fold the locking piece inward, fold the inner plate inward to wrap this locking piece, and insert the protrusion into the locking hole to form the top and bottom lid member On the other hand, the body blank plate is formed by alternately arranging the body plate and the square plate and providing the adhesive piece at the end portion of the body plate, and bending it along the folding line to form the adhesive piece and the end plate. To form a substantially octagonal tubular body, and the body plate of the body is brought into contact with the insides of the side surfaces of the top and bottom cover member to close the lid. A paper container having a substantially octagonal body. 2. A paper container having a substantially octagonal body portion according to claim 1, wherein a cutout portion having a substantially convex shape is provided on one surface of the body plate at perforations.