JP2004018077A - Paper-made container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper-made container for housing an inner container filled with a powder, granules or a liquid, which has plane strength and buckling strength of a barrel, is resistant to drop/impact or the like, and is excellent in productivity and economic efficiency. <P>SOLUTION: The paper-made container has reinforcing rim pieces and reinforcing rim adhesive pieces connected with a front face plate and a rear face plate respectively via creases in their lateral directions. Barrel adhesive pieces are connected with a pair of side plates respectively in the lateral direction. The barrel adhesive pieces are folded into the approximately right angle to be respectively glued to right and left ends of the front face plate and the rear face plate. The reinforcing rim piece and the reinforcing rim adhesive piece are folded to form a triangular prism structure at four corners of the inner periphery. In addition, the reinforcing rim adhesive pieces form a parallelepiped barrel stuck to the inner wall slightly toward the center from the creases of the pair of side plates. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a paper container, and more particularly, to provide a paper container that prevents deformation and breakage of an outer container that occurs when a large volume of content is stored, and that protects the stored content.
[0002]
[Prior art]
Conventionally, so-called bag-in-boxes, in which products such as large-capacity powders, granules, and liquids are filled into inner bags such as polypropylene and stored in boxes such as cardboard, have been widely used as business paper containers. In terms of disposability and recycling, it has become a popular alternative to metal cans and molded containers. However, paper containers are generally made of corrugated cardboard, and there are many strength problems with large-volume contents, and the outer bag is damaged due to dropping or impact during transportation, and the inner bag is damaged. There was a danger of the contents leaking. In addition, the phenomenon that the outer container is deformed by the inner pressure applied by the inner bag, which is generally called blistering, was considered to lead to breakage if the deformation was remarkable. In these cases, since the outer container is made of paper, more severe conditions such as the effects of rainwater or the like under high humidity or outdoors, and the accumulation during transportation and storage, may occur. Of course, even when the inner bag is not used as described above, when the content is large capacity, large amount, or heavy, deformation and damage of the exterior and damage of the content occur similarly.
[0003]
These require a strong protection function for distribution and storage, and a technology disclosed in Japanese Utility Model Publication No. 7-9969 and Japanese Patent Application Laid-Open No. 8-282735 has a structure in which a reinforcing portion is provided in a body portion. .
Japanese Utility Model Publication No. 7-9969 has a structure in which a corner reinforcing post is integrally formed on the inner periphery of the corner of the cylindrical body, and the internal pressure and other loads applied from the contents are dispersed to prevent the body from bulging. Although it is said that buckling and breakage due to accumulated pressure can be prevented, there is a problem in that the reinforcing material structure is integrated with the main body, which increases the required material development size and increases cost. In addition, due to a different structure in the surface where the affixed portion faces, there was a possibility that glue would be peeled off due to internal pressure in the end plate portion.
[0004]
Further, in Japanese Patent Application Laid-Open No. 8-282735, since the structure is formed by a combination of an outer box and a frame body, the effect of preventing bulging of the body and preventing the containers from being crushed when stacked is increased. It is apparent that the three-layer wall structure has a large required material development dimension and also increases the cost, and there is a problem in economy.
[0005]
[Problems to be solved by the invention]
Therefore, the present invention provides a reinforcing structure at the corners, and further strengthens each structural surface by bonding, thereby preventing deformation and breakage of the outer container due to external force and internal pressure, protecting the contents, and using the same. The aim is to provide an inexpensive paper container by reducing the material as much as possible.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, the paper container of the present invention is constituted by a pair of side plates, a front plate, and a back plate forming a top, a bottom, and a cylindrical body using a sheet-like member such as cardboard or cardboard. A substantially rectangular parallelepiped container, a reinforcing edge piece and a reinforcing edge sticking piece are successively provided on the front plate and the rear plate via creases in the left-right direction, and the pair of side plates are respectively provided in the left-right direction. A torso sticking piece is continuously provided via a crease, and the torso sticking piece is bent at a substantially right angle and is attached to each of the right and left ends of the front plate and the back plate, and the reinforcing member is provided. The edge piece and the reinforcing edge adhesive piece are bent to form a triangular prismatic structure at the four inner corners, and the reinforcing edge adhesive piece is attached to the inner wall slightly closer to the center from the crease of the pair of side plates. And a paper container formed with a cylindrical body.
[0007]
The invention according to claim 2 is that the pair of side plates are connected to opposing sides of a rectangular bottom plate via a crease, and each of the other opposing sides of the bottom plate is lower via a crease. Attached pieces are continuously provided, and a bottom portion is formed by attaching the lower attached piece to lower ends of the front plate and the back plate, and the tubular body portion is formed as described above. Is a paper container having reinforcing edges of a triangular prism structure at four inner corners of the paper container.
[0008]
According to the invention of claim 3, the upper joining piece is connected to each of the opposing sides of the rectangular top plate via a crease, and the upper adhesive pieces are respectively provided to the other opposing sides via the creases. The upper joining pieces are attached to upper ends of the pair of side plates, respectively, and the upper attaching pieces are attached to upper ends of the front plate and the rear part, respectively. A paper container characterized by being closed, having a bottom structure as described above, and a reinforcing edge having a triangular prism structure at four inner corners of a cylindrical body.
[0009]
The invention according to claim 4 is characterized in that the top plate is continuously provided from one upper end side of the side plate via a fold line, and a frame sticking piece is provided continuously on the extension thereof through a fold line, and On the opposite side of the top plate, an upper sticking piece is continuously provided via a crease, and the frame sticking piece is attached to an upper end of a side plate facing the side plate, and 3. The bottom structure according to claim 2, wherein the attachment pieces are attached to upper end portions of the front plate and the rear plate, respectively, and the top portion is closed, and triangular pillars are formed at four inner corners of the cylindrical body. It is a paper container having a structural reinforcement edge.
[0010]
The invention according to claim 5 is characterized in that an overlapping top component plate is continuously provided from an upper end side of the side plate via a crease, and an upper sticking piece is provided on opposite sides of the top component plate and the overlapping top component plate. Are connected to each other via creases, and the top component plate is attached to the superposed top component plate, and the upper attachment pieces are attached to upper end portions of the front plate and the rear plate, respectively. A paper container having a bottom structure according to claim 2 and a reinforcing edge of a triangular prism structure at four inner peripheral corners of a cylindrical body, characterized in that the top is closed.
[0011]
According to a sixth aspect of the present invention, a top component plate is continuously provided from one upper edge of the side plate and an upper edge of one of the opposing side plates via a fold rule. The upper adhesive pieces are connected to each other through folds on the sides to be joined, and the respective top component plates are abutted at the central portion of the upper part, and the upper adhesive pieces are respectively bent, and the upper adhesive pieces are bent. 3. The bottom structure according to claim 2, wherein the top portion is closed by using a sealing tape from the face plate to the upper bonding piece, the top component plate, the upper bonding piece, and the back plate. 4 is a paper container having reinforcing edges of a triangular prism structure at four inner peripheral corners of the portion.
[0012]
The invention according to claim 7 is such that a lower joining piece is connected to opposing sides of the rectangular bottom plate via folds, and a lower adhesive piece is connected to the other opposing sides via folds. The lower joining pieces are attached to the lower ends of the side plates, respectively, and the lower attaching pieces are attached to the lower ends of the front plate and the rear plate, respectively, and the bottom is closed to form a rectangular shape. An upper joint piece is continuously provided on each of the opposing sides of the top plate via a crease, and an upper adhesive piece is continuously provided on each of the other opposing sides via a crease. A tubular body, wherein pieces are attached to an upper end of the side plate, and the upper adhesive pieces are attached to upper ends of the front plate and the back plate, respectively, to close a top portion. 4 is a paper container having reinforcing edges of a triangular prism structure at four inner peripheral corners of the portion.
[0013]
The present invention relates to a container having a substantially rectangular parallelepiped container formed of cardboard or corrugated cardboard or the like. Alternatively, the load imbalanced by the internal pressure applied to the inner wall surface by the inner container or the shock or vibration generated during transportation is dispersed, and the deformation load on the outer wall surface is reduced. Further, since each corner is a space, the impact on the contents or the inner container is reduced even when receiving an impact such as a corner drop during transportation or handling. Further, in the present invention, since the body component plate is bonded and joined, the strength of each surface can be increased. For this reason, it is possible to prevent buckling due to stacking during transportation or storage, and the resulting load on the contents or the inner container, breakage such as bag breakage, and the like. In addition, swelling of the body due to internal pressure is reduced.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail based on examples. FIG. 1 is a perspective view showing a basic structure of the present invention. FIG. 2 is a cross-sectional view of the basic structure of FIG. FIG. 3 is a perspective view of one embodiment of the present invention. FIG. 4 is a development view thereof. FIG. 5 is a perspective view of a second embodiment of the present invention. FIG. 6 is a development view thereof. FIGS. 7A and 7B are perspective views of a third embodiment of the present invention, wherein FIG. 7A shows a completed state, and FIG. FIG. 8 is a development view thereof. 9A and 9B are perspective views of a fourth embodiment of the present invention, wherein FIG. 9A shows a completed state, and FIG. 9B shows a top part opened state. FIG. 10 is an expanded view thereof. FIG. 11 is a perspective view of a fifth embodiment of the present invention. FIG. 12 is an exploded view.
[0015]
As shown in the basic structure of FIGS. 1 and 2, the paper container of the present invention has a body composed of a front plate 10, a side plate 2, a back plate 11, and a side plate 2. Adhesive bonding is performed in a right-angle structure in which the attachment piece 5 is bent, and in an angular structure in which the reinforcing edge piece 12 and the reinforcing edge sticking piece 13 connected to the front plate 10 and the back plate 11 are bent. A right-angled isosceles triangular pillar structure is formed therein, and a body sticking piece 5 is attached to the outer surfaces of the front plate 10 and the back plate 11, respectively, and a reinforcing edge is attached to the inner surface of the side plate 2. By sticking the sticking pieces 12, a partially laminated structure is formed, and each is reinforced as a surface. In addition, as for each of the sticking and joining, gluing with an emulsion paste or hot melt can be basically considered, but joining by staple sealing is also possible. As the interior container, a bag-like container made of a plastic film, a plastic thin-walled container, or the like can be considered, and the container is appropriately designed according to the characteristics of the content product.
[0016]
The embodiment shown in FIGS. 3 and 4 has a structure including four pieces of a top plate blank, a side plate 2, a bottom plate 3, a side plate 2, and a front plate blank, and a back plate blank. First, a body composed of a pair of side plates 2, a front plate 10, and a back plate 11 is bonded and joined, and then a lower part is attached to the front plate 10 and the rear plate 11 provided on the vertical extension of the bottom plate 3, respectively. After the pieces 7 are attached and bonded, and the interior container or the contents product is put in, the upper attachment pieces 6 on the front plate and the back plate respectively provided on the vertical extension of the top plate 1 and the side plates provided on the left and right extensions The outer joint is completed by sticking and joining the upper joint piece 8 to the outer surface.
[0017]
The embodiment shown in FIG. 5 and FIG. 6 has a blank consisting of a side plate 2, a bottom plate 3, a side plate 2, a top plate 1, a frame sticking piece 4, a front plate blank, and a rear plate blank. With the top plate 1 being opened, a torso composed of a pair of side plates 2, a front plate 10 and a back plate 11 is attached and joined, and then the bottom plate 3 is vertically extended. After bonding the lower sticking pieces 7 to the front plate 10 and the rear plate 11 provided above, respectively, and inserting the interior container or the contents product, the top plate 1 is closed, the frame sticking piece 4 and the upper sticking are performed. The exterior pieces are completed by sequentially attaching and joining the pieces 6.
[0018]
The embodiment shown in FIG. 7 and FIG. 8 is a blank in which a top component plate 1a, a side plate 2, a bottom plate 3, a side plate 2, and a superposed top component plate 1b are successively provided, a front plate blank, and a rear plate blank. With the top part constituting plate 1a and the superposed top part constituting plate 1b being opened, a trunk part composed of a pair of side plates 2, a front plate 10 and a back plate 11 is attached and bonded. Then, the lower attachment pieces 7 are attached and bonded to the front plate 10 and the back plate 11 provided on the vertical extension of the bottom plate 3 respectively, and after the interior container or the contents product is loaded, the top component plate 1a and The top plate 1b is attached to the top plate 1a and the top plate 1a and the top plate 6 attached to the back plate 11 are vertically extended from the top plate 1b. It is attached to the back plate 11 to complete the exterior.
[0019]
The embodiment shown in FIG. 9 and FIG. 10 is composed of a blank sequentially provided in the order of the top component plate 1a, the side plate 2, the bottom plate 3, the side plate 2, the top component plate 1a ', the front plate blank, and the rear plate blank. In the state where the top component plate 1a and the top component plate 1a 'are opened, a torso portion composed of a pair of side plates 2, a front plate 10 and a back plate 11 is attached and bonded. Then, the lower sticking pieces 7 are attached and bonded to the front plate 10 and the back plate 11 provided on the vertical extension of the bottom plate 3 respectively, and after the interior container or the contents product is loaded, the top component plate 1a, 1a 'is abutted and closed, and the sealing tape 50 is affixed and sealed over the front plate 10, the upper affixing piece 6, the abutted top component plates 1a, 1a', the upper affixing piece 6, and the back plate 11. The exterior is completed.
[0020]
The embodiment shown in FIGS. 11 and 12 has a structure including six pieces of a top plate blank, a pair of side plate blanks, a front plate blank, a back plate blank, and a bottom plate blank. The torso composed of the base plate 10 and the back plate 11 is bonded and bonded, and then the lower plate 7 attached to the front plate 10 and the back plate 11 provided on the vertical extension of the bottom plate 3 and provided on the left and right extensions, respectively. After the lower joining piece 9 is adhered and joined to the side plate 2, the interior container or the content product is put therein, and the upper attaching piece 6 to the front plate 10 and the rear plate 11 provided on the vertical extension of the top plate 1, respectively. Then, the upper joint piece 8 is adhered to and joined to the side plate 2 provided on the left and right extensions to complete the exterior.
[0021]
【The invention's effect】
As described above, the paper container of the present invention is a container having a substantially rectangular parallelepiped appearance, and a triangular prism-shaped reinforcing edge portion is formed at the inner four corners of the cylindrical body, so that the paper container can be transported or stored. Buckling due to the stacking of the materials and the breakage or breakage due to the load on the inner container or the content product due to the buckling can be prevented. In addition, since the inner wall surface of the container is substantially octagonal, the uneven pressure caused by the internal pressure applied to the inner wall surface of the inner container or the content product, the impact generated during transportation, and the vibration is dispersed, and the deformation and breakage of the outer wall surface is prevented or reduced. effective. Further, since each corner is a space, there is an effect that the impact on the inner container or the content product is reduced even when receiving an impact such as a corner drop during transportation or handling.
[0022]
Furthermore, in the present invention, the pair of side plates, the front plate, and the back plate that constitute the cylindrical body are bonded and bonded with the body sticking pieces and the reinforcing edge sticking pieces, respectively, so that the uniform strength of each surface is achieved. A rise is obtained. Therefore, it is possible to prevent or reduce buckling due to stacking during transportation or storage, and thereby, breakage or breakage of the package due to the load on the inner container or the content product. In addition, there is an effect that the swelling of each body constituting surface due to the internal pressure is also reduced.
[0023]
In the above-mentioned Japanese Utility Model Publication No. 7-9969 and Japanese Patent Application Laid-Open No. 8-282735, the effect is intended to be obtained by forming the reinforcing structure component into a double structure or by putting it separately inside the outer case. Therefore, the required materials are increased, and the cost is also increased. In the present invention, materials can be reduced because the constituent surfaces are joined to the minimum necessary. According to trial calculations, it is possible to achieve a reduction of about 30% in the area ratio of the used paper as compared with the container integrally provided with the reinforcing structure disclosed in Japanese Utility Model Publication No. 7-9969, thereby reducing the cost. It has the effect of providing a container.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a basic structure of the present invention.
FIG. 2 is a cross-sectional view of the basic structure of FIG.
FIG. 3 is a perspective view of one embodiment of the present invention.
FIG. 4 is a development view of the embodiment of FIG. 3;
FIG. 5 is a perspective view of a second embodiment of the present invention.
FIG. 6 is a development view of the embodiment of FIG. 5;
FIG. 7 is a perspective view of a third embodiment of the present invention.
FIG. 8 is a development view of the embodiment of FIG. 7;
FIG. 9 is a perspective view of a fourth embodiment of the present invention.
FIG. 10 is a development view of the embodiment of FIG. 9;
FIG. 11 is a perspective view of a fifth embodiment of the present invention.
FIG. 12 is a development view of the embodiment of FIG. 11;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Top plate 2 ... Side plate 3 ... Bottom plate 4 ... Frame sticking piece 5 ... Body sticking piece 6 ... Upper sticking piece 7 ... Lower sticking piece 8 ... Upper joining piece 9 ... Lower joining piece 10 ... Front plate 11 Back plate 12 Reinforcement edge piece 13 Reinforcement edge sticking piece 1a, 1a 'Top component plate 1b Polymerized top component plate 50 Sealing tape

Claims (7)

A substantially rectangular parallelepiped container comprising a pair of side plates, a front plate, and a back plate forming a top, a bottom, and a cylindrical body formed of a sheet-like member such as cardboard, wherein the front plate and the back plate are provided. A reinforcing edge piece and a reinforcing edge sticking piece are continuously provided in the left and right direction via a crease, and a body sticking piece is continuously provided in each of the pair of side plates through a right and left crease. The torso sticking pieces are bent at substantially right angles and stuck to the right and left ends of the front plate and the back plate, respectively, and the reinforcing edge pieces and the reinforcing edge sticking pieces are triangular prism-shaped at the four inner corners. A paper trunk, which is bent to form a structure, and wherein the reinforcing edge sticking piece is attached to the inner wall slightly closer to the center from the crease of the pair of side plates to form a cylindrical body. container. The pair of side plates are continuously connected to opposing sides of the rectangular bottom plate via a crease, and lower bonding pieces are connected to the other opposing sides of the bottom plate via the creases, respectively. 2. The paper container according to claim 1, wherein the bottom portion is formed by attaching the lower attachment piece to lower end portions of the front plate and the back plate. The upper joining piece is connected to the opposite side of the rectangular top plate via a folding rule, and the upper attaching piece is connected to the other opposite side via the folding rule. Upper joining pieces are respectively attached to upper ends of the pair of side plates, and the upper attaching pieces are attached to upper ends of the front plate and the rear part, respectively, and a top part is closed. The paper container according to claim 1. The top plate is continuously provided from one upper end side of the side plate via a crease, a frame portion sticking piece is continuously provided via a crease on an extension of the top plate, and on an opposite side of the top plate. The upper sticking pieces are connected to each other via folds, and the frame sticking pieces are stuck to the upper end portion of the side plate facing the side plate, and the upper sticking pieces are each fixed. The paper container according to claim 1 or 2, wherein the top portion is closed by being attached to upper end portions of the face plate and the back plate. From the upper end side of the side plate, an overlapped top component plate is continuously provided via a crease, and on the opposing sides of the top component plate and the overlapped top component plate, an upper adhesive piece is respectively provided via a crease. The top component plate is attached to the superposed top component plate, and the upper attachment pieces are attached to the upper ends of the front plate and the rear plate, respectively, to close the top part. The paper container according to claim 1 or 2, wherein: From the upper end of one of the side plates and the upper end of the one of the opposing side plates, a top component plate is continuously provided via a crease, and an upper side is attached to the opposing side of each of the top component plates. The pieces are continuously provided via creases, the respective top component plates are abutted at the center of the top, the upper adhesive pieces are bent, and the upper adhesive pieces are separated from the front plate. The paper container according to claim 1 or 2, wherein the top portion is closed using a sealing tape over the top component plate, the upper attachment piece, and the back plate. Lower joining pieces are continuously provided on opposite sides of the rectangular bottom plate via folds, and lower adhesive pieces are continuously provided on the other opposite sides via folds, respectively. The joining pieces are respectively attached to the lower ends of the side plates, and the lower attaching pieces are respectively attached to the lower ends of the front plate and the back plate to close the bottom, and opposing sides of the rectangular top plate. The upper joint piece is connected to each other via a crease, and the upper bonding piece is connected to each other opposing sides via a crease. The paper container according to claim 1, wherein the upper container is attached to a top portion, and the upper attachment pieces are attached to upper end portions of the front plate and the rear plate, respectively, to close a top portion.

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