JPH08133338A - Composite container - Google Patents

Abstract

PURPOSE: To provide a composite container which can be transported or stored under a folded condition prior to the filling of a content liquid by a method wherein a bottle body is a biaxially drawn oriented blow-molded body of a laminate with a single layer body made of a polyethylene terephthalate resin or of which the innermost layer is made of said resin, and the bottle body is formed in such a manner that the area draw ratio of the body part, and the thickness of the body part and shoulder part are made specified values. CONSTITUTION: A composite container consists of an external container 11 made of paper and a bottle body 1. The bottle body 1 is integrally formed of a body part 2, shoulder part 3 which is connected to the body part 2, and one side of which is formed into an approx. flat tilted wall 3a, and a cylindrical spout part 5 which is connected to the upper end of the shoulder part 3 with a supporting ring. Also, the bottle body 1 is a biaxially drawn oriented blow- molded body of a laminate with a single layer of a polyethylene terephthalate resin layer, or at least the innermost layer of which is made of the polyetylene terephthalate resin. Then, the area draw ratio of the body part 2 is made 30-40, and the thickness of the body part 2 and shoulder part 3 is made 100-200μm, and also is formed so as to be easily foldable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises an outer container made of paper and a plastic bottle body housed in the outer container. The outlet of the bottle body is exposed to the outside through an upper opening of the outer container. The present invention relates to a composite container having a protruding structure.

[0002]

2. Description of the Related Art Conventionally, as a container for storing liquids such as sake, wine, liquid seasonings, etc., a bag-shaped inner container made of a plastic film is stored in a rectangular outer container (outer container) made of cardboard. Container having a structure in which a spout of the container is protruded from the outer container, a so-called bag-in-box type double container (see, for example, JP-A-5-229570), and a cardboard square type A composite container having a structure in which a relatively thin plastic bottle is housed in the outer container, and a spout of the bottle projects from the outer container, a so-called bottle-in-box double container (for example, 62-
29375) is known.

[0003]

However, in the bag-shaped container of the composite container, since a single-layer film or a laminated film is formed into a bag shape by bonding by heat sealing or the like, the bonding of pinholes or the like is not possible. Liquid leakage due to defects is easy to occur, and the shape of the outer container and the shape of the bag-like container are significantly different, so it is inevitable that some wrinkles will occur, and a part of the stored liquid content will be Easy to remain.

Further, since the bag-shaped container has no shape-retaining property at all, not only is "body swelling" easily caused by the contained liquid, but also when the composite container is dropped,
Due to the weight of the content liquid, the bag-shaped container is easily peeled off from the adhesive surface with the outer container. Furthermore, the filling of the bag-shaped container with the content liquid must be performed in a state where the bag-shaped container is housed in the outer container, and there is a problem that a dedicated filling machine is required.

Further, in the above-mentioned composite container, generally, the upper part of the outer container is formed into an inclined surface, and the inclined surface is provided with an opening for projecting the spout of the bottle from the outer container. However, this bottle is formed by biaxial stretch blow molding, and has a sheet-like thickness (for example, 1.
Since it is a relatively hard container having a volume of 5 liters (350 μm), it has the advantage of having high mechanical strength and sufficient shape retention, but the spout is located from the inclined surface of the outer container. In order to project it, the spout must be bent with respect to the body of the bottle and inserted into the opening in this bent state. There is a problem that it is not easy to mold because it is necessary to have a special stretchable structure such as forming a bellows in the part.

Further, in common with the above, in order to firmly fix the spout portion protruding from the outer container, a special fixing member must be provided at the spout portion, and its attachment is complicated and costly. There was a problem of becoming high.

Further, the conventional outer container is generally assembled by using an adhesive, but in the sake brewers and the like producing small lots, the outer container is mainly filled with bottles filled with contents. Since it is done by hand (packing), an outer container that can be easily assembled without using an adhesive has been desired.

The present invention is a composite container comprising an outer container made of paper and a plastic bottle body housed in the outer container, wherein the spout of the bottle body projects to the outside through the opening of the outer container. By using a thermoplastic resin with excellent gas barrier properties as the body material, and having a thin wall like a film, having a certain degree of shape retention and being easy to fold, the problems associated with the above Is the solution. Further, according to the present invention, in order to meet the above-mentioned demand, a plug-in piece is provided at an end portion of a member forming the inclined surface of the outer container, and the plug-in piece is inserted and fixed at a predetermined position, so that a bottle outlet is formed. The part is fixed to the outer container.

[0009]

A composite container according to claim 1 comprises an outer container made of paper and a plastic bottle body housed in the outer container, wherein the spout of the bottle body is made of the plastic container. In the composite container projecting to the outside through the opening of the outer container, the bottle body is a single layer body made of polyethylene terephthalate resin or a biaxially stretched orientated blow molded body of a laminate body in which at least the innermost layer is made of polyethylene terephthalate resin. It is characterized by being formed by folding easily with the area stretching ratio of the body portion of 30 to 40 and the thicknesses of the body portion and the shoulder portion of 100 to 200 μm.

The composite container according to claim 2 comprises an outer container made of paper and a plastic bottle body housed in the outer container, and the spout of the bottle body passes through the opening of the outer container to the outside. In the composite container projecting in the above, the bottle body is a biaxially oriented blow molded product of a laminate of a polyethylene terephthalate resin whose innermost layer is a polyethylene terephthalate resin and a condensation polymer of metaxylylenediamine and adipic acid. And the area draw ratio of the body is 30 to 4
0, and the thickness of the body and the shoulder is 100 μm to 200 μm, which is characterized by being easily formed by folding.

In the composite container according to claim 3, the bottle body is
In Claim 1 or 2, the corners at the body and the bottom are rounded from 20R to 50R.

The composite container according to claim 4 is the composite container according to claims 1 and 2.
In item 3 or 3, the bottle is characterized in that folding lines are provided on the front side and the back side of the body, and reinforcing ribs are provided on the surface where the folding lines are not provided.

The composite container according to claim 5 is a container according to claim 1,
2, 3 or 4, the outer container is a rectangular container provided with an inclined lid plate which inclines at a downward slope toward the front side plate in the upper portion, and the inclined lid plate is a first holding piece connected to the front side plate. , A second sandwiching piece connected to the rear side plate, and the first sandwiching piece has a substantially U-shaped notch formed at the center of the upper end and having a pair of opposed protrusions projecting in a direction orthogonal to the axis of the outer container. The second clamping piece has a substantially U-shaped notch formed at the center of the lower end, and the lower half of the second clamping piece is overlapped and adhered on the upper half of the first clamping piece to form a substantially circular shape. A through hole is formed, and the pair of opposed protrusions are outside the through hole,
It is also characterized in that it can be located in the immediate vicinity.

According to a sixth aspect of the present invention, in the container according to the fifth aspect, the bottle body has a body portion, a shoulder portion which is connected to the body portion and has a substantially flat inclined wall on one side, and an upper end of the shoulder portion. It is formed integrally with a cylindrical spout part connected via a support ring, and the spout part is provided with a flange at an appropriate interval directly above the support ring to provide a space between the support ring and the flange. An annular recess is formed, the bottle body is housed in the outer container, the center portion of the inclined wall of the bottle body is depressed toward the inside of the bottle body, and the spout is tilted to form the annular recess. After inserting the notched inner peripheral portion of the first sandwiching piece and restraining the movement of the spout portion by the pair of opposed projections, the second sandwiching piece is overlaid on the first sandwiching piece and these sandwiching pieces are bonded to each other. , The outlet part is formed by the inner circumference of the substantially circular through hole. Characterized in that the lifting fixed.

A composite container according to claim 7 is the composite container according to claim 5 or 6, wherein the outer container is provided with a weakening line at a fold line at a boundary between the rear side plate and the second sandwiching piece, and the weakening line is broken. With this, the spout of the bottle can be removed from the through hole formed in the inclined lid plate so that the bottle can be taken out.

The composite container according to claim 8 is the composite container according to claim 7, wherein the outer container is between the first clamping piece and the left side plate, and between the first clamping piece and the right side plate. Folding pieces are provided via folding lines that are mountain folds, and these folding pieces are connected to each other by the outer folding pieces and the inner folding pieces through the folding lines that are valley folds, and are provided on the left and right sides of the second sandwiching piece. Are characterized in that an adhesive piece capable of adhering to the left side plate and an adhesive piece capable of adhering to the right side plate are connected to each other via a fold line which is provided with a weakening line and becomes a mountain fold.

The composite container according to claim 9 is the same as in claim 1,
2, 3 or 4, the outer container is a rectangular container provided with an inclined lid plate which inclines at a downward slope toward the front side plate, wherein the inclined lid plate is a first sandwiching piece and a second sandwiching piece. The upper end of the first clamping piece is connected to the first top plate through a fold line that makes a mountain fold, and the lower end of the first clamping piece is connected to the front plate through a fold line that is a mountain fold. A long hole extending from the center of the lower end of the top plate to substantially the center of the first sandwiching piece is formed, and the upper half of the long hole is a circular hole extending over the first top plate and the first sandwiching piece. The lower half of the elongated hole is provided with a pair of opposed protrusions that project toward each other in a direction orthogonal to the axis of the outer container, and the circular hole inserts a cap attached to the top of the bottle body. Has a possible inner diameter, the upper end portion of the second sandwiching piece is connected to the second top plate through a fold line that is a mountain fold, A substantially U-shaped notch is formed at the center of the upper end of the two clamping pieces, and a substantially circular through hole is formed by stacking and fixing the second clamping piece on the first clamping piece. It is characterized in that the opposed protrusions can be located outside and in the immediate vicinity of the through hole.

A composite container according to a tenth aspect is the ninth aspect.
In the above, at the upper end portion of the first top plate of the outer container, an insert reinforcing piece is provided through a fold line that has a score line at the center and becomes a mountain fold, and the insert reinforcing piece is the inner surface upper end portion of the rear side plate. It can be inserted into this outer container in the state of abutting against, and a cut line is formed at the upper end of the left side plate and the upper end of the right side plate, and a fold line that makes a mountain fold and a closing line on the left and right of the second holding piece. A piece, a fold line to be a mountain fold and an insert piece are provided in this order, and the first insert piece and the second insert piece are provided through a score line at the upper end of the left side plate and the upper end of the right side plate. A third insertion piece is formed by forming a substantially inverted U-shaped cut line that can be inserted into the lever outer container and that extends over the upper end of the rear plate and the lower end of the second top plate. The third insert has a fold line that is a valley fold at the lower end and a fold line that is a mountain fold at the center. Each of them is formed in a direction orthogonal to the axis of the outer container, and the third insert piece further has a score line of the insert reinforcing piece inserted in the outer container in a state of being in contact with the upper end of the inner surface of the rear plate. It is characterized in that it can be inserted into this outer container through.

A composite container according to an eleventh aspect is the tenth aspect.
In the above, the bottle body is integrally formed with a body portion, a shoulder portion which is connected to the body portion and has a substantially flat inclined wall on one side, and a cylindrical spout portion which is connected to an upper end of the shoulder portion through a support ring. The bottle, which is formed by molding, forms an annular recess between the support ring and the flange by providing a flange directly above the support ring at an appropriate interval, and filled the contents with a tight stopper. After storing the body in the outer container,
By bending the first top plate and the first sandwiching piece toward the rear plate side, the cap of the bottle body is inserted into the circular hole, and the central portion of the inclined wall of the bottle body is depressed toward the inside of the bottle body. By tilting the outlet portion, the lower end inner peripheral portion of the elongated hole is inserted into the annular recess and the movement of the outlet portion is restrained by the pair of opposed projections, and then the second clamping piece is attached to the front side plate. The first reinforcing member is overlapped on the first clamping piece by bending to the side, and after inserting the substantially U-shaped notch inner peripheral portion of the second clamping piece into the annular recess of the bottle body, the insertion reinforcing piece, the first to the first It is characterized in that the first sandwiching piece and the second sandwiching piece are respectively fixed by inserting the three insertion pieces into predetermined places, and the spout is sandwiched and fixed by the inner peripheral portion of the substantially circular through hole.

[0020]

In the composite container according to any one of claims 1 to 4, both the outer container and the bottle can be stored and transported in a folded state before being filled with the content liquid, and the spout of the bottle is easily bent, so After filling the content liquid with the part and the spout straight, the spout can be folded and stored in the outer container, or if desired, the bottle body can be simply stored in the outer container. It is also possible to fill the liquid. Further, the bottle body can be stored in the outer container in a stable state without adhering or fixing the side surface or the bottom surface of the bottle body to the inner surface of the outer container, so that the bottle body can be easily separated from the outer container. Also, unlike conventional bag-shaped containers, it has a certain degree of shape-retaining property, so that large wrinkles do not occur on the inner surface of the bottle body, it is difficult for the liquid content to remain in the bottle body, and the bottle body is a little different from the outer container. Since it is independent, it is less likely that the body will bulge due to the filling of the content liquid.

Further, since the bottle body is a biaxially stretched and blow molded article, the spout portion is along the axial direction of the bottle body, but the thickness of the body portion and the shoulder portion is 100 μm to 20 μm.
Since it is 0 μm, it is lighter than the conventional plastic bottle body, and it is possible to reduce the amount of raw plastic used.
Without giving the shoulder a special shape such as a bellows, the shoulder can be easily bent to incline the spout, and the spout can be fixed to the inclined wall of the outer container. Further, it can be folded and stored / conveyed if desired, and since the body is stretched at an area stretching ratio of 30 to 40, cracks and pinholes do not occur even when folded, and whitening and cloudiness occur. Nothing.

Further, since the shape of the primary molded product to be biaxially stretched and orientation blow-molded is exactly the same as that of a normal biaxially stretched and orientation blow-molded bottle body, it can be molded without using a mold having a special structure. Is possible. The bottle body according to claims 1 to 4 is a polyethylene terephthalate resin (hereinafter, PET).
It is a biaxially stretched orientated blow-molded product of a monolayer of (1) or a laminate having the innermost layer of PET, and thus has excellent aroma retention and gas barrier properties, does not adsorb the odor of the content liquid, etc. Since it has no odor, the odor of the bottle does not transfer to the content liquid.

In the first to fourth aspects, the area stretching ratio of the body is 30 to 40, and the body and shoulder have a wall thickness of 100 μm or more.
The reason for selecting 200 μm is that the area stretching ratio exceeds 40,
If the wall thickness is less than 100 μm, the mechanical strength will be insufficient and opaque haze (cloudiness) will occur due to overstretching, making molding difficult, and if the wall thickness exceeds 200 μm, bending of the shoulder will be difficult. On the other hand, the area draw ratio is 30
This is because the bending property is excellent and sufficient strength, rigidity, gas barrier property and transparency of the bottle can be obtained.

In the bottle body according to any one of claims 1 to 4, the bottomed parison formed by injection molding, extrusion molding or the like is heated to a temperature suitable for stretching, and the stretching rod and air blow the plastic molecules into biaxially and longitudinally. Manufactured by stretching and orientation in the direction. In this case, the strength, rigidity, and
Properties such as gas barrier properties and transparency are improved.

In the composite container according to claim 5 and the composite container according to claim 7, after assembling the outer container in the open state in which the inclined lid plate is not fixed and storing the bottle body, the first holding piece is placed on the second holding piece side. Fold it in. In this state, bend the shoulder of the bottle body to incline the spout, push the spout into the notch of the first sandwiching piece, i.e., from the opposite protrusion, to the outer peripheral surface of the spout. Abut the opposing protrusions. This prevents the spout from coming off the notch due to the shape recovery (elasticity) of the shoulder. Next, the second clamping piece is bent to the first clamping piece side, and the lower half portion is overlapped and adhered on the upper half portion of the first clamping piece, and the outer peripheral surface of the spout portion is clamped by the inner peripheral portion of the substantially circular through hole. By fixing, a composite container is constructed.

In the composite container of claim 6 and the composite container of claim 7, since the first clamping piece is inserted into the annular recess of the bottle body spout to clamp and fix the spout, the fixing operation is performed. In addition to being able to perform simply and quickly, since the vertical movement of the contact portion of the sandwiching piece with the outer peripheral surface of the spout is restricted by the flange and the support ring, the fixed state of the spout is It will be more robust.

In the composite container according to the eighth aspect, an open outer container in which the inclined lid plate is not fixed is assembled, the bottle body is housed, and then the first holding piece is bent to the second holding piece side. In this case, folding pieces are provided between the first sandwiching piece and the left side plate, and between the first sandwiching piece and the right side plate through folding lines that are mountain folds, and these folding pieces are respectively Since the outer folding piece and the inner folding piece are connected via a fold line that forms a valley fold, the adjacent folding piece is folded by bending the first sandwiching piece, so that the tilt lid can be easily and accurately manually also. The plate can be fixed. In this state, bend the shoulder of the bottle body to incline the spout, push the spout into the notch of the first sandwiching piece, i.e., from the opposite protrusion, to the outer peripheral surface of the spout. Abut the opposing protrusions. This prevents the spout from coming off the notch due to the shape recovery of the shoulder. Then, the second clamping piece is bent to the side of the first clamping piece, the lower half of the second clamping piece is overlapped with the upper half of the first clamping piece, and the adhesive pieces connected to the left and right sides of the second clamping piece are attached to the left side plate and the right side plate. By adhering and clamping the outer peripheral surface of the spout at the inner peripheral portion of the substantially circular through hole,
A composite container is constructed.

In the outer container according to the fifth aspect, when an unskilled person manually assembles the outer container, the inclined lid plate cannot be accurately fixed by adhesion depending on the structure, so that the outer container can be accurately assembled. It may not be possible to assemble into a rectangular container with a different shape. On the other hand, claim 8
In the outer container, the first sandwiching piece and the left and right side plates are connected in advance by a folding piece having a fold line that forms a valley fold in the middle part, and the second sandwiching piece is an adhesive strip provided on the left and right sides of the second sandwiching piece. Since it has a structure in which it is adhered and fixed to the left and right side plates, even an unskilled person can easily, quickly, and accurately assemble the outer container (storage and fixing of the bottle body).

In the outer container according to claim 9, after the bottle body filled with the contents and tightly closed is housed in the outer container, the first top plate and the first sandwiching piece are bent to the rear plate side. By inserting the cap of the bottle body into the circular hole which is a part of the long hole and inclining the center of the inclined wall of the bottle body to the inside of the bottle body to incline the spout, After inserting the lower end inner peripheral portion of the elongated hole into the annular recess and restraining the movement of the spout portion by the pair of opposed protrusions, the second top plate and the second sandwiching piece are bent toward the front side plate to The top plate is overlaid on the first top plate, the second sandwiching piece is overlaid on the first sandwiching piece, and the substantially U-shaped notched inner peripheral portion of the second sandwiching piece is inserted into the annular recess of the bottle body. . By doing so, similarly to the case of the outer container according to the fifth aspect, it is possible to prevent the spout of the bottle from coming off the notch due to the shape recoverability of the shoulder. When fixing the first top plate and the first sandwiching piece, and the second top plate and the second sandwiching piece in a state in which the movement of the bottle body spouting portion is restrained, an adhesive can be used, As in the case of 10, the use of the adhesive can be omitted by providing the insertion pieces at the ends of these members and inserting the insertion pieces into the predetermined positions to fix the insertion pieces.

In the outer container according to claim 10,
Storage of bottle body, restriction of bottle body spout, fixing of first clamping piece,
Each work of fixing the second clamping piece is performed by the procedure described in claim 11. Therefore, in the outer container according to the tenth aspect, the bottle body spouting portion can be fixed without using an adhesive, which simplifies the manual filling work of the bottle body.

[0031]

The present invention will be described in more detail below with reference to the embodiments shown in the drawings. Example 1 FIG. 1 is a front view of a bottle body 1, and a cap (not shown)
It shows a state in which is removed. FIG. 2 is a plan view of FIG. FIG. 3 is a perspective view of the outer container 11, showing a state in which the outer container 11 is assembled without housing the bottle body 1. FIG. 4 is a development view of the outer container 11, that is, a front view of a punched paper piece for forming the outer container 11. FIG. 5 is a perspective view showing a construction procedure of the composite container, that is, a procedure for assembling the outer container 11 and a procedure for storing the bottle body 1 in the outer container 11. FIG. 6 is an explanatory view of a state where the spout 5 of the bottle body 1 is clamped and fixed by the first sandwiching piece 63 and the second sandwiching piece 66 of the outer container 11, and these sandwiching pieces are viewed from the front. Is. FIG. 7 is a cross-sectional view of a composite container configured by housing the bottle body 1 in the outer container 11.

The bottle body 1 shown in FIGS. 1 and 2 has a body 2 and a body 2.
A shoulder portion 3 which is continuous with one side and has a substantially flat inclined wall 3a on one side,
A cylindrical spout 5 connected to the upper end of the shoulder 3 via a circular support ring 4 is integrally formed.
In the above, an annular recess 7 is formed between the support ring 4 and the flange 6 by providing a flange 6 directly above the support ring 4 with an appropriate gap. In FIG. 1, 8 is a spout and 9 is a threaded portion.

The bottle body 1 is a biaxially stretched orientated blow molded body made of PET alone (single layer), or a condensation polymer of PET, metaxylylenediamine and adipic acid (hereinafter referred to as MX) in which the innermost layer is PET. (Referred to as nylon), which is a biaxially stretch-oriented blow-molded product having a body part having an area draw ratio of 30 to 40 and a body part and a shoulder part having a wall thickness of 100 μm to 2
It is molded to a size of 00 μm to facilitate folding.

This bottle body 1 can be molded by a usual method using a usual die. That is, it is obtained by molding a predetermined plastic as a bottomed parison with an injection molding machine, holding the bottomed parison in a blow molding die, and biaxially stretched orientation blow molding with high pressure air.

The gas barrier property of PET is much higher than that of polycarbonate, polystyrene, polypropylene, polyethylene and the like. When more excellent gas barrier property is required, a laminate with polyethylene / polyvinyl alcohol copolymer (EVOH) or MX nylon can be used. In particular, MX nylon has a melting point and glass transition point close to that of PET (melting point of PET is 255 ° C,
MX nylon has a glass transition point of 243 ° C and PET of 67
˜70 ° C., MX nylon 75 ° C.), easy molding and improved piercing strength. Furthermore, PET and M
A laminate with X-nylon has the advantage that it can be recycled just like PET alone.

Next, regarding the biaxially stretch-oriented blow-molded bottle body according to the present invention, the relationship between the wall thickness of the body portion and the shoulder portion, the moldability of the bottle body and the bendability of the shoulder portion is shown in the table. 1]. Regarding the bendability of the shoulder portion, it was investigated whether or not it is easy to bend the shoulder portion of the empty bottle body at room temperature to incline the spout.

[0037]

[Table 1] ◯: Good ▲: Opaque haze is generated, resulting in poor molding Δ: Somewhat bad ×: Poor

As is clear from [Table 1], by adjusting the wall thickness of the bottle to 100 μm to 200 μm, both moldability and bendability can be improved, and the wall thickness is 10 μm.
If it is less than 0 μm, molding is difficult, and if it exceeds 200 μm, the bending property becomes poor. Further, in order to optimize both moldability and bendability, the wall thickness range is 120 μm to 170 μm.
It has been confirmed that it is better to say

Next, the structure of the outer container 11 for accommodating the bottle 1, the assembling procedure, and the method of accommodating the bottle 1 will be described with reference to FIGS. 3 to 7. The outer container 11 is a rectangular tube-shaped container having a rectangular inclined lid plate 12 that is inclined downwardly toward the front plate 53 at the upper portion, and the inclined lid plate 12 is a first sandwiching piece connected to the front plate 53. 63 and a second sandwiching piece 66 connected to the rear side plate 55. The first sandwiching piece 63 has a pair of opposed projections 92, 93 at the center of the upper end thereof, the pair of opposing projections 92, 93 protruding in a direction orthogonal to the axis of the outer container 11. The U-shaped notch 91 is formed, the substantially U-shaped notch 94 is formed at the center of the lower end of the second sandwiching piece 66, and the first sandwiching piece 63 is formed.
A circular through hole 95 is formed by stacking and adhering the lower half portion of the second sandwiching piece 66 on the upper half portion of the above, and the pair of opposed projections 92, 93 are provided outside and in the vicinity of the through hole 95. It is configured to be located at.

Then, the bottle body 1 is housed in the outer container 11 from the opening portion of the inclined lid plate 12 at the upper end, and the central portion of the inclined wall 3a of the bottle body 1 is depressed into the inside of the bottle body 1, thereby The notch 91 forming portion of the holding piece 63 is inserted into the annular recess 7 of the bottle body 1, and the spout 5 is formed by the opposing projections 92 and 93.
After restraining the movement of the second clamping piece 6 on the first clamping piece 63.
A composite container is constructed by stacking 6 and adhering the sandwiching pieces 63 and 66, and sandwiching and fixing the spout 5 with the inner peripheral portion of the circular through hole 95.

The structure of the outer container 11 will be described below with reference to FIG.
It will be described more specifically based on. The outer container 11 is a box-shaped container in which a piece of paper punched out from a piece of thick paper into a predetermined shape is appropriately bent and assembled. That is, the substantially rectangular adhesive piece 51, the left side plate 52, the front side plate 53, the right side plate 54, and the rear side plate 55 are connected in the horizontal direction through the folding lines 21, 22, 23, and 24 that are provided in the vertical direction and are parallel to each other. To do. Left side plate 5
The adhesive piece 61 is provided on the upper end portion of 2 through the fold line 31 orthogonal to the fold line 21, and the adhesive piece 62 is provided through the fold line 32 that is continuous with the fold line 31 and descends toward the front side plate 53. , 62 to form a substantially V-shaped notch 71.

At the upper end of the front side plate 53, a rectangular first sandwiching piece 63 that doubles as a lid plate is provided through a fold line 33 that is continuous with the fold line 32 and is orthogonal to the fold line 22. Adhesive pieces 64, 65 are provided symmetrically with the adhesive pieces 62, 61 via the fold lines 34, 35 connected to the fold line 33,
At the upper end of the rear plate 55, the broken line 24 is connected to the broken line 35.
Top plate 69 via a fold line 36 orthogonal to and a rectangular second holding piece 6 also serving as a lid plate via a fold line 37 parallel to the fold line 36.
6 is provided. The broken line 36 is a weakened line 36 due to perforations.
b is provided, and a semicircular weakening line 36a for pushing is provided near the center of the weakening line 36b. In addition, in FIG.
Is a notch.

The left side plate 52, the front side plate 53, the right side plate 54 and the rear side plate 55 are connected to the lower end portions of the left side plate 52, the front side plate 53, the right side plate 54 and the rear side plate 55 in a straight line.
Bottom plate pieces 81, 82, 83, and 84 are provided via folding lines 41, 42, 43, and 44 orthogonal to 1, respectively.

A substantially U-shaped notch 91 is formed at the center of the upper end of the first sandwiching piece 63, and projections 92 and 93 are provided inside the notch 91 so as to face each other in the direction parallel to the fold line 33. A bottle body in which the width is accommodated in the center of the second sandwiching piece 66 in parallel with the folding line 36 and at a position where the distance between the folding line 36 and the folding piece 36 is substantially equal to the width of the adhesive piece 61 and in the center of the upper end of the sandwiching piece 66. Forming a substantially U-shaped notch 94 substantially equal to the flange of the spout.

Next, an example of a procedure for assembling the outer container 11 with this piece of paper and storing the bottle body 1 therein will be described. The adhesive piece 51 or the rear side plate 55 is mountain-folded at the folding lines 21 to 24, and the bottom plate pieces 81 to 84 are mountain-folded at the folding lines 41 to 44, so that the adhesive piece 51 is made to the rear side plate 5.
The bottom plate 85 (see FIG. 7) is formed by adhering the bottom plate 81 to 84 to the back surface of the plate 5 and appropriately adhering the bottom plates 81 to 84 to form a rectangular tubular body.

Next, the bottle body 1 filled with the content liquid in advance
Is stored in this square tube (see FIG. 5), and the adhesive piece 62,
64 is mountain-folded at the folding lines 32 and 34, and then the first sandwiching piece 63 is mountain-folded at the folding line 33 to form the adhesive pieces 62 and 64.
The state of FIG. 5 is obtained by stacking and adhering it on top.

After that, the spout portion 5 of the bottle body 1 is as described above.
And the notch 91 forming portion of the first holding piece 63 is inserted into the annular recess 7 between the support ring 4 and the flange 6 of the bottle body 1. In this case, the spout 5 is pushed deeper into the notch 91, that is, from the opposing projections 92 and 93, and these opposing projections are brought into contact with the outer peripheral surface of the spout 5. As a result, the spout 5 is notched by the shape recovery of the shoulder 3.
Escape from 1 is prevented.

Next, the adhesive pieces 61, 65 are attached to the broken lines 31, 35.
And the second sandwiching piece 66 is folded at the folding lines 36 and 37, and the upper half of the second sandwiching piece 66 is bonded to the adhesive piece 6.
1, 65 and the lower half of the adhesive piece 62,
The inner peripheral surface of the circular through hole 95 sandwiches and fixes the outer peripheral surface of the spout portion 5 to form a predetermined composite container by stacking and adhering it on the upper surface of the first clamping member 63 and on the upper half of the first clamping piece 63. It
The state at this time is as shown in FIGS. 6 and 7.

When opening the upper end of the outer container 11,
Insert the fingertip into the weakening line 36a for pushing to weaken the line 3
If the portion 6b is broken, the spout 5 of the bottle can be detached from the through hole 95 formed in the inclined lid plate 12, and the bottle 1 can be taken out to make a plastic bottle and an outer container made of paper. Can be easily separated. The adhesive piece 6
Adhesion between 1, 62, 64, 65 and the first and second sandwiching pieces 63, 66, and between the first and second sandwiching pieces 63, 66 are preferably linear adhesive or spot adhesive rather than full-surface adhesive. The operation of opening the upper end of the outer container 11 can be easily performed. Further, in place of the weakened lines 36a and 36b, a perforated line or a zipper (not shown) may be formed on the body of the outer container 11 to circulate.

Embodiment 2 A bottle body 1 shown in FIGS. 8 and 9 has a body portion 2 with a wall thickness of about 100 μm, and a reinforcement portion is provided at a lower portion of the body portion 2 in order to surely prevent the body from bulging. The ribs 2a of the bottle body 1 are formed, and folding lines 2 for folding the bottle body 1 are formed on the front side and the back side of the bottle body 1 so that the bottle body 1 can be folded more easily and in a uniform shape.
b is formed.

Further, the corners of the body and bottom of the bottle body are more likely to be overstretched and overstretched as compared to the wall surface. To prevent this, the corners of the body 2 and bottom of the bottle body 1 are prevented. Is a roundness of 20R to 50R (radius 20mm to 50R
(roundness of mm).

Example 3 FIG. 10 is a perspective view of the outer container 111, FIG. 11 is an exploded view thereof, FIG. 12 is an enlarged view of the upper half of FIG. 11, and FIG. 13 is a procedure for assembling the outer container and the outer container. To Figure 1
FIG. 9 is a perspective view showing how to store the bottle body 1 shown in (or FIG. 8). FIG. 14 is a plan view showing how to assemble this outer container and how to store a bottle in this outer container. The folding pieces 162 and 164 are in the state of being folded by valley folds at folding lines 162c and 164c, respectively. Is shown. FIG. 15 is a left side view of FIG. The outer container 111 is the outer container 11 of the first embodiment.
The bottle body shown in FIG. 1 or FIG. 8 is improved by further improving the configuration so that even an unskilled worker can easily (promptly and accurately) assemble (holding and fixing the bottle body). It is stored.

The structure of the outer container 111, the assembling procedure, and the method for storing the bottle body 1 will be described below with reference to FIGS. The form of the outer container 111 after assembly is shown in FIG.
0, it is almost the same as the outer container 11 of FIG. That is, it is a rectangular tube-shaped container provided with a rectangular slant cover plate 112, the slant cover plate 112 is composed of a first sandwiching piece 163 and a second sandwiching piece 166, and the first sandwiching piece 163 is substantially in the center of the upper end. A U-shaped cutout 191 is formed, and a second U-shaped cutout 166 is formed with a substantially U-shaped cutout 194 at the center of the lower end. Then, the left and right folding pieces 162, 164 are folded by valley folds at folding lines 162c, 164c, respectively (see FIGS. 12 to 15), and the lower half of the second clamping piece 166 is placed on the upper half of the first clamping piece 163. Layer and glue 1
67, 168 (see FIG. 13) respectively on the left side plate 15
2, a circular through hole 1 by adhering to the right side plate 154
95 is formed, and the pair of opposing protrusions 192 and 193 provided on the first holding piece 163 are provided outside the through hole 195.
It is also configured so that it can be located in the immediate vicinity.

The procedure for forming the composite container by housing the bottle body 1 in the outer container 111 is as follows.
1 is the same as the description (see the description of paragraph 36), and finally the inner peripheral portion of the circular through hole 195 clamps and fixes the spout 5 of the bottle body 1 to form a composite container. .

Hereinafter, the structure of the outer container 111 will be described more specifically with reference to FIGS. 11 and 12. The outer container 111 is a box-shaped container formed by appropriately bending and assembling a piece of paper punched out from a piece of thick paper into a predetermined shape. That is, the broken lines 121, 122, which are provided in the vertical direction and are parallel to each other,
Through 123, 124, a substantially rectangular adhesive piece 151,
The left side plate 152, the front side plate 153, the right side plate 154, and the rear side plate 155 are connected in the lateral direction. The reinforcing piece 1 is provided on the upper end portion of the left side plate 152 via a fold line 131 orthogonal to the fold line 121.
61 and a folding piece 162 connected to the folding line 131 via a folding line 132 that is downwardly inclined toward the front side plate 153, and a substantially V-shaped notch 171 is formed between the reinforcing piece 161 and the folding piece 162.

At the upper end of the front side plate 153, a rectangular first holding piece 163 which doubles as a lid plate is provided through a folding line 133 which is continuous with the folding line 132 and is orthogonal to the folding line 122.
At the upper end of 4, the folding lines 134 and 13 connected to the folding line 133 are formed.
5, the folding piece 162 and the reinforcing piece 161 are provided symmetrically with the folding piece 164 and the reinforcing piece 165, respectively. If desired, the reinforcing pieces 161 and 165 may also serve as adhesive pieces.

The folding piece 162 is an outer folding piece 162b.
And the inner folding piece 162a, a folding line 162c that forms a valley fold
And the right end portion of the folding piece 162 is connected to the left end portion of the first holding piece 163 via a folding line 163a which is an extension of the folding line 122. In addition, the folding piece 16
4 is an outer folding piece 164b and an inner folding piece 164a,
It is configured to be connected via a folding line 164c that forms a valley fold, and the left end portion of the folding piece 164 is connected to the right end portion of the first holding piece 163 via a folding line 163b that is an extension of the folding line 123. The broken lines 132, 162c, 163a, 163b,
The 164c and 134 are intermittently provided with score lines to facilitate their bending. Further, the broken line 16
The lower half of 3a is a continuous score line 163c, and this score line is extended to the lower end of the folding line 162c. Similarly, the lower half of the fold line 163b is a continuous score line 16
3d, and this score line is extended to the lower end of the fold line 164c.

At the upper end of the rear side plate 155, a second rectangular holding member which doubles as a lid plate via a folding line 136 which is continuous with the folding line 135 and is orthogonal to the folding line 124, and a folding line 137 which is parallel to the folding line 136. A piece 166 is provided. Tongue-shaped adhesive pieces 167, 1 are provided on both left and right ends of the second holding piece 166.
68 are connected to each other via folding lines 166a and 166b provided with weakening lines due to perforations or the like. The broken line 136
Similarly, a weakening line 136b due to perforations is provided, and a semicircular weakening line 136a for pushing is provided near the center of the weakening line 136b. In FIG. 12, 172 is a cut. Further, as the adhesive for each adhesive piece,
A hot melt type is preferably used.

Left side plate 152, front side plate 153, right side plate 15
4 and the bottom plates 181 and 182, respectively, at the lower ends of the rear plate 155 and the rear side plate 155 via folding lines 141, 142, 143 and 144 which are continuous with each other and are orthogonal to the folding line 121.
183 and 184 are provided. 181a and 1
Reference numeral 83a is a fold line that forms a valley fold.

A substantially U-shaped notch 191 is formed at the center of the upper end of the first holding piece 163, and the notch 19 is formed.
1, the protrusions 192 and 193 are provided to face each other in the direction parallel to the fold line 133, and the fold line 13 is provided at the center of the second holding piece 166.
6 and the fold line 137 and the second holding piece 166 at a position where the distance between the fold line 136 and the fold line 136 is substantially equal to the width of the reinforcing piece 165.
A substantially U-shaped notch 194 having a width substantially equal to the flange of the spout of the bottle body to be accommodated is formed in the center of the upper end of the.

Next, an example of a procedure for assembling the outer container 111 with this piece of paper and storing the bottle body 1 therein will be described. Attach the adhesive piece 151 or the rear side plate 155 to the broken line 121.
~ 124 mountain fold, bottom plate pieces 181 to 184
Is folded at the folding lines 141 to 144, the adhesive piece 151 is adhered to the back surface of the rear side plate 155, and the bottom plate 181 is attached.
The bottom plate 185 is formed by appropriately adhering Nos. 184 to 184 to form a square tubular body in an open state.

Next, the bottle body 1 filled with the content liquid in advance
When the first holding piece 163 is bent to the side of the second holding piece 166 after storing (see FIG. 13) in this square tubular body (see FIG. 1).
4 and 15), the outer folding piece 162b and the inner folding piece 1
62a, the outer folding piece 164b, and the inner folding piece 164a are folded. In this state, the shoulder portion of the bottle body 1 is bent to incline the spout portion 5, and the spout portion 5 is located at the inner portion of the notch 191 of the first holding piece 163, as in the case of the first embodiment. The opposing projections 192 and 193 are brought into contact with the outer peripheral surface of the spout portion 5 by pushing it inward from the opposing projection. This prevents the spout 5 from coming off the notch due to the shape recovery of the shoulder.

Then, the reinforcing pieces 161 and 165 are bent to the bottle body 1 side, the second holding piece 166 is bent to the first holding piece 163 side, and the lower half portion thereof is superposed on the upper half portion of the first holding piece 163. At the same time, the adhesive pieces 167 and 168 connected to the left and right of the second holding piece 166 are connected to the left side plate 152 and the right side plate 1, respectively.
The composite container is formed by adhering it to 54 and sandwiching and fixing the outer peripheral surface of the spout 5 with the inner peripheral surface of the substantially circular through hole.
The state at this time is the same as that shown in FIGS. 6 and 7.

In the outer container 111, the first holding piece 16
3 and the left side plate 152, a folding piece 162 is provided via folding lines 132 and 163a that are easily folded, and between the first holding piece 163 and the right side plate 154.
A folding piece 164 is provided via folding lines 134 and 163b that are easily folded, and the folding piece 162 connects the outer folding piece 162b and the inner folding piece 162a to a folding line 162c that is easily folded. Since the folding piece 164 is connected to the outer folding piece 164b and the inner folding piece 164a via the folding line 164c which is a valley fold and is easy to fold, the folding piece 164 is adjacent to the folding piece 164 by bending. Since the folding piece is folded, the inclined lid plate 112 can be fixed easily and accurately by manual work. Especially,
Since the score lines 163c and 163d are provided as described above, the folding along the folding lines 162c and 164c can be performed very simply because only the upper half thereof is required.

When the upper end of the outer container 111 is unsealed, if the fingertip is inserted into the weakening line 136a for pushing and the weakening line 136b is broken and pulled up, the weakening line 1
Since the 66a and 166b portions are also easily torn, the second holding piece 166 can be removed with almost one touch. For this reason, the spout 5 of the bottle body 1 can be easily removed from the through hole 195 formed in the inclined lid plate 112, and the bottle body 1 is taken out to make a plastic bottle body and a paper outer container. Can be easily separated.

Embodiment 4 FIG. 16 is a developed view of the outer container 211, FIG. 17 is an enlarged view of the upper half portion of FIG. 16, and FIGS. 18 to 25 show the procedure for assembling the outer container 211 and FIG. FIG. 9 is a perspective view or a side cross-sectional view showing a procedure for storing and fixing the bottle body 1 shown in (or FIG. 8). FIG. 26 is a perspective view of the completed composite container, and the form of the outer container 211 after assembly is
It is almost the same as the outer container 111 shown in FIG. FIG.
FIG. 27 is a bottom view of FIG. 26. This outer container 211 further improves the structure of the outer container 111 of the third embodiment so that even an unskilled worker can assemble the container easily, quickly and accurately without using an adhesive (storage of bottles). It is configured so that it can be fixed).

The structure of the outer container 211 will be specifically described below with reference to FIGS. FIG. 26
The outer container 211 shown in is a box-shaped container in which a piece of paper punched into a predetermined shape from a piece of thick paper is appropriately bent and assembled. In this embodiment, a polygonal line 24 described later
5, 246 and 247 are valley fold lines, and all other fold lines are mountain fold lines. FIG.
As shown in FIGS. 6 and 17, the substantially rectangular adhesive piece 261, the left side plate 262, the front side plate 263, the right side plate 264, and the rear side plate 265 are provided via folding lines 221, 222, 223, and 224 that are provided in the vertical direction and are parallel to each other. Are installed horizontally. At the upper end of the left half of the left side plate 262, a broken line 2 orthogonal to the broken line 221.
A reinforcing piece 281 is provided via 31. Also, the left side plate 26
A cut line 321 is provided in the vicinity of the upper end of the right half portion of 2 parallel to the contour line L of the upper end of the right half portion.

At the upper end of the front side plate 263, a rectangular first sandwiching piece 271 and a first top plate 273 are connected in series through a fold line 232 that is continuous with the contour line L and is orthogonal to the fold line 222.
An insertion reinforcing piece 282 is provided on the upper end of the first top plate 273 via a fold line 236 and a score line 322. A boundary line between the first sandwiching piece 271 and the first top plate 273 is a broken line 237. In this case, the score line 322 is provided at the center of the fold line 236. On the left and right of the first sandwiching piece 271, there are folding lines 238,
Reinforcing pieces 283 and 284 are provided via 239, respectively. Further, a long hole 301 is formed so as to extend from the center of the lower end of the first top plate 273 to almost the center of the first holding piece 271. The upper half of the elongated hole 301 is a circular hole that straddles the first top plate 273 and the first sandwiching piece 271, and the lower half is formed in a substantially U shape, and the substantially U shape is A pair of opposing protrusions 301a and 301b are provided so as to be opposed to each other in a direction orthogonal to the axis of the outer container 211. A reinforcing piece 285 and a score line 323 are provided at the upper end of the right side plate 264 symmetrically with the reinforcing piece 281 and the score line 321 respectively. In addition, 2
33 is a broken line.

A second ceiling plate 274 and a second holding piece 272, both of which have a rectangular shape, are connected to the upper end of the rear side plate 265 via a folding line 234 orthogonal to the folding line 224. Reference numeral 244 is a fold line that partitions the second top plate 274 and the second holding piece 272.
Closing pieces 291 and 292 are provided on the left and right sides of the second holding piece 272 via folding lines 240 and 241, respectively.
Insertion pieces 303 and 304 are provided via 2, 243, respectively. In addition, a substantially U-shaped notch 302 is formed at the center of the upper end of the second holding piece 272. Further, the rear side plate 26
5 by forming a substantially inverted U-shaped cut line 324 extending over the upper end of the second top plate 274 and the lower end of the second top plate 274.
05, and the fold line 2 at the center of the insertion piece 305.
A fold line 235 that is on the same line as 34 is formed, and the insertion piece 3
A folding line 245 that forms a valley fold is formed at the lower end of 05.

The inner diameter of the circular hole forming a part of the elongated hole 301 is such that the cap attached to the top of the bottle body 1 shown in FIG. 1 (or FIG. 8) can be inserted. Also, the long hole 30
1 and the notch 302 of the second sandwiching piece 272, the first sandwiching piece 2
71 and the second sandwiching piece 272 are overlapped and fixed in a predetermined manner to form a substantially circular through hole, and the pair of opposing protrusions 301a and 301b are provided outside and in the vicinity of the substantially circular through hole. (See FIG. 6).

Left side plate 262, front side plate 263, right side plate 26
4 and the lower end portions of the rear side plates 265 via the folding lines 251, 252, 253 and 254 which are continuous with each other and are orthogonal to the folding line 221, respectively.
313 and 314 are provided. Left side plate 262, right side plate 2
In 64, fold lines 246 and 247, which form a valley fold, are formed so as to obliquely descend from the upper right end portion thereof, and cut lines 325 and 326 are intermittently formed on these fold lines, respectively. Folding of 247 is facilitated. Further, in the bottom plate pieces 311, 313, the broken line 246,
An adhesive is applied to the back surface of the right side of 247 to form adhesive pieces 266 and 267, respectively.

Next, an example of a procedure for assembling the outer container 211 with this piece of paper and storing / fixing the bottle body 1 therein will be described with reference to FIGS. In the manufacturer of this paper piece, the folding lines 221 to 224 and the folding lines 251 to 2
54 is mountain-folded, and fold lines 246 and 247 are valley-folded to bond the adhesive piece 261 to the back surface of the rear side plate 265.
˜314 are attached to the bottom of the crush lock to form the rectangular tubular body shown in FIG. 18 (see FIG. 27). The outer container 211 of this form is folded and delivered to a brewery or the like that produces small lots of several thousand bottles. When the bottom is attached, the adhesive piece 266 is adhered to the bottom plate piece 312 and the adhesive piece 267 is adhered to the bottom plate piece 314, and the bottom plate piece 311 is attached.
The lower left portion (see FIG. 16) of the bottom plate piece 314 is inserted into the back surface side of the bottom plate piece 314, and the lower left portion of the bottom plate piece 313 is inserted into the back surface side of the bottom plate piece 312.

Next, in a brewing maker or the like, after the bottle body 1 filled with the content liquid in advance and tightly sealed is housed in the outer container 211 (see FIG. 19), the first top plate 273 and the first holding piece 271. By bending the back side plate 265 side,
The cap portion of the bottle body 1 is inserted into the circular hole at the upper end of the elongated hole 301 to obtain the state shown in FIG. In this case, the reinforcing piece 28
1 and 285 perpendicular to the left and right side plates, and the outer container 2
11, the reinforcing pieces 283 and 284 are bent almost perpendicularly to the first sandwiching piece 271, and the reinforcing piece 282 is formed.
Is bent perpendicularly to the first top plate 273. In the state of FIG. 20, the reinforcing pieces 281 and 285 are brought into contact with the lower surface of the first top plate 273, and the reinforcing pieces 283 and 284 are left side plate 2 respectively.
The inner surface of 62 and the inner surface of the right side plate 264, respectively,
The reinforcing piece 282 is brought into contact with the inner surface of the rear plate 265. By doing so, the strength of the upper portion of the outer container 211 is increased.

In the outer container 211 in the state of FIG. 20,
The shoulder portion of the bottle body 1 is bent to incline the spout portion 5 (see FIG. 1), and the elongated hole 301 of the first holding piece 271 is formed in the annular recess 7 of the spout portion 5 as in the first embodiment. The inner periphery of the lower end is inserted, and the movement of the spout 5 is restricted by the opposing protrusions 301a and 301b. The state at this time is shown in FIG.

Next, in the order shown in FIGS. 22, 23a, 23b, and 24, the second holding piece 272 and the second top plate 274 are bent toward the bottle body 1 side, and the second holding piece 272 is moved to the first holding piece 27.
1 is slid toward the spout 5, and the inner peripheral portion of the notch 302 is inserted into the annular recess 7. In the state of FIG. 24, the folding line 244 is located directly above the folding line 237, the first top plate 273 and the second top plate 274 are completely overlapped with each other, and the circular penetration formed by the overlapping of the long hole 301 and the notch 302. The spout 5 is clamped and fixed by the inner peripheral portion of the hole. Regarding the insertion piece 305, the folding line 235 is mountain-folded and the folding line 245 is valley-folded so as to project from the outer container 211 as shown in FIG.

Next, as shown in FIG. 25, the closing pieces 291 and 292 on both sides of the second holding piece 272 are attached to the second holding piece 27.
Bend vertically to 2, and insert pieces 303 and 304 are bent at a slight angle with respect to closing pieces 291, 292,
As shown in FIGS. 24 and 25, the insertion pieces 303 and 304 are connected to the outer container 21 through the score lines 321 and 323, respectively.
1, the insertion piece 305 is inserted into the lower surface side of the first top plate 273 through the cut line 322 at the end of the first top plate 273 as shown in FIG. The composite container shown in FIG. 26 is configured by the above work.

In the outer container 211, as shown in FIG.
It is preferable to prepare one of the eight types. In this case, a sake brewer or the like that produces small lots can complete a composite container by bending a predetermined portion and inserting a predetermined reinforcing piece and a inserting piece into a predetermined portion of the outer container 211. You can Therefore, a small-scale sake brewer or the like can carry out the bottle filling work easily, quickly and accurately without using an adhesive and without requiring skill or skill.

Further, in this outer container 211, the fixing structure of the bottle body 1, that is, the fixing structure of the spout portion 5 is performed not by adhesion but by insertion of the insertion piece into the outer container. After using the container, by pulling out the insertion piece, the upper part of the outer container is opened, and the spout 5 of the bottle 1 can be separated from the circular through hole formed in the inclined lid plate 212. Therefore, the operation of taking out the bottle body 1 and separating the bottle body 1 into the plastic bottle body and the paper outer container can be easily performed.

[0079]

As is apparent from the above description, claim 1
According to the composite container described in any one of 4 to 4, since it can be stored and transported in a folded state before being filled with the content liquid, the cost required for these can be reduced, and the spout and the body of the bottle can be reduced. After filling the content liquid in a straightened state, the spout can be folded and stored in the outer container, or if desired, the content liquid can be filled while the bottle is simply stored in the outer container. It is also possible to make and fill boxes with some changes to existing equipment. Also, since the side and bottom surfaces of the bottle can be stored in the outer container in a stable state without being bonded or fixed to the inner surface of the outer container, the bottle can be easily separated from the outer container, and the inner surface of the bottle is large. Since wrinkles do not occur, the content liquid is less likely to remain in the bottle body, and the body swelling due to filling the content liquid is less likely to occur. Furthermore, since the thickness of the body and shoulder of this bottle is 100 μm to 200 μm, it is lighter than the conventional plastic bottle, and the amount of raw plastic used can be reduced, and the bellows and the like on the shoulder can be reduced. It is possible to easily bend the shoulder part to incline the spout and to fix the spout to the inclined wall of the outer container without giving a special shape of You can also Further, the shape of the primary molded product to be biaxially stretched and oriented blow-molded is exactly the same as that of a normal biaxially stretched and oriented blow-molded bottle body, so that it can be molded without using a mold having a special structure. Since it is a biaxially stretched oriented blow-molded product of a PET single layer or a laminate having the innermost layer of PET, it has excellent fragrance retention and gas barrier properties, does not adsorb the odor of the content liquid, etc. Since there is no odor of the bottle body in the content liquid and the mechanical strength is high, there is no concern that it will break even if the bottle body filled with the content liquid is dropped, and it has excellent recyclability. There is an effect that various drawbacks in the composite container of can be solved. According to the composite container of claim 5, when the bottle is housed in the outer container, the movement of the tilted spout is provided on the first sandwiching piece forming the tilted lid plate of the outer container. Since it is constrained by the lock mechanism by, the assembly of the composite container can be performed easily and quickly. According to the composite container of claim 6, a substantially U-shape provided on the first sandwiching piece forming the inclined lid plate of the outer container in the annular recess formed between the support ring and the flange of the bottle body spout. Since the pouring portion is clamped and fixed by abutting the inner peripheral surface of the notch, the fixed state becomes more solid. According to the composite container of the seventh aspect, the bottle can be easily taken out by breaking the weakening line provided in the outer container. According to the composite container of the eighth aspect, the operation of fixing the inclined lid plate on the outer container can be performed simply and accurately, and the operation of taking out the bottle body by removing the second holding piece becomes extremely simple. According to the composite container of claim 9, the lower end of the elongated hole provided in the annular recess formed between the support ring and the flange of the bottle body spouting portion, the elongated hole extending across the first top plate and the first sandwiching piece. Since the bottle body spouting part is pinched and fixed by abutting the inner peripheral part, and it is constrained by the lock mechanism by the opposed protrusions provided on the first pinching piece, the assembly of the composite container can be performed easily and quickly. In addition, the bottle pouring outlet can be fixed more firmly. In the composite container according to claim 10, since the outer container is assembled and the bottle body is fixed by inserting the insertion piece into a predetermined position according to the procedure according to claim 11, an adhesive is used. Not only is it unnecessary, but even an unskilled person can easily, simply and quickly carry out the manual filling work of bottles. Therefore, it is suitable as a composite container for small lot production,
Further, since the outer container can be disassembled by pulling out the insertion piece, it is possible to very easily separate the bottle body and the outer container.

[Brief description of drawings]

FIG. 1 is a front view of a bottle body according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a perspective view of an outer container for accommodating the bottle body of FIG.

4 is a development view of the outer container of FIG. 3. FIG.

5 is a perspective view showing a procedure for assembling the outer container in FIG. 3 and a procedure for housing a bottle in the outer container. FIG.

6 is an explanatory view showing a state in which the spout of the bottle body is clamped and fixed by the sandwiching pieces of the outer container in the embodiment of FIG. 5, and these sandwiching pieces are viewed from the front. FIG.

7 is a cross-sectional view showing a state where the bottle body of FIG. 1 is stored in the outer container of FIG.

FIG. 8 is a front view of a bottle body according to another embodiment.

9 is a side view of FIG.

FIG. 10 is a perspective view of an outer container according to still another embodiment.

11 is a developed view of the outer container of FIG.

12 is an enlarged view of the upper half of FIG.

FIG. 13 is a procedure for assembling the outer container of FIG. 10 and
It is a perspective view showing the point of storing a bottle in this outer container.

14 is a procedure for assembling the outer container of FIG. 10 and
It is a top view which shows the point which accommodates a bottle in this outer container, Comprising: Folding piece 162, 164, folding line 162c,
164c shows a state in the middle of folding by valley fold.

FIG. 15 is a left side view of FIG.

FIG. 16 is a development view of an outer container according to still another embodiment.

FIG. 17 is an enlarged view of the upper half of FIG.

FIG. 18 is a perspective view showing a procedure for assembling an outer container using the punched paper piece shown in FIG. 16, showing a state in which the outer container is configured as a square tubular body.

FIG. 19 is a perspective view showing a state in which a bottle body is inserted into the square tubular body of FIG. 18.

20 is a schematic view of the outer container of FIG. 18 containing a bottle,
It is a perspective view which shows the state which covered the 1st top plate and the 1st clamping piece on the bottle body.

FIG. 21 is a perspective view of an essential part showing a state in which the movement of the bottle pouring outlet part is restricted by the first holding piece.

FIG. 22 is a side cross-sectional view of a main part, showing a pre-stage step of fixing the bottle pouring outlet part by the first sandwiching piece and the second sandwiching piece.

FIG. 23 is an explanatory view of a main part showing a subsequent step of fixing the bottle pouring outlet part by the first sandwiching piece and the second sandwiching piece, (a) is a perspective view, and (b) is a side sectional view.

FIG. 24 shows a state in which the bottle outlet part is fixed by a first sandwiching piece and a second sandwiching piece, and a state in which insert pieces provided on both sides of the second sandwiching piece are inserted into the left and right side plates. It is a perspective view of a part.

FIG. 25 is a perspective view of essential parts showing a state in which an insertion piece projected from the rear plate of the outer container is inserted into the outer container.

FIG. 26 is a perspective view showing the overall shape of a completed composite container.

FIG. 27 is a bottom view of FIG. 26.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Bottle body 2 Body part 2a Rib 2b Folding line 3 Shoulder part 3a Inclined wall 4 Support ring 5 Spouting part 6 Flange 7 Annular recess 8 Spouting port 9 Screwing part 11,111,21 Outer container 12,112,212 Inclined lid plate 21-24, 31-37, 41-44 Broken line 36a, 36b, 136a, 136b Weakened line 51, 61, 62, 64, 65 Adhesive piece 52, 152, 262 Left side plate 53, 153, 263 Front side plate 54, 154 264 Right side plate 55, 155, 265 Rear side plate 63, 163, 271 First clamping piece 66, 166, 272 Second clamping piece 69, 169 Top plate 71, 72, 91, 94, 171, 172, 191, 1
94,302 Notch 81-84,181-184,311-314 Bottom plate piece 85,185 Bottom plate 92,93,192,193,301a, 301b Protrusion 95,195 Through hole 121-124,131-137,141-144 Folding lines 151, 167, 168, 261, 266, 267 Adhesive pieces 161, 165, 281-285 Reinforcing pieces 162, 164 Folding pieces 162a, 164a Inner folding pieces 162b, 164b Outer folding pieces 162c, 163a, 163b, 164c Folding lines 163c, 163d, 321-326 Cut line 166a, 166b, 181a, 183a Fold line 221-224, 231-247, 251-254 Fold line 273 First top plate 274 Second top plate 291,292 Closure piece 301 Long hole 303-305 Insert piece (Tongue piece)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yuzo Fukawa 4-14-12 Koishikawa, Bunkyo-ku, Tokyo Joint printing Co., Ltd. (72) Inventor Takashi Shirane 4-14-12 Koishikawa, Bunkyo-ku, Tokyo Joint printing Co., Ltd. (72) Inventor Naoki Uchida, 4-14-12 Koishikawa, Bunkyo-ku, Tokyo Kyodo Printing Co., Ltd. (72) Inventor, Eiichi Kai 4-14-12 Koishikawa, Bunkyo-ku, Tokyo Kyodo Printing Co., Ltd. (72) Inventor Mr. Wamahiro 4-14-12 Koishikawa, Bunkyo-ku, Tokyo Kyodo Printing Co., Ltd. (72) Inventor Yoshihiro Terada 5-6-2 Higashi-Hachiman, Hiratsuka-shi, Kanagawa Sanritsu Gas Chemical Co., Ltd. In-house (72) Takao Ota 5-6-2 Higashi-Hachiman, Hiratsuka City, Kanagawa Sanritsu Gas Chemical Co., Ltd. Hiratsuka Laboratory (72) Inventor Hisato Goto 2-5-2 Marunouchi, Chiyoda-ku, Kyoto Sanryo Gas Chemical Co., Ltd.

Claims (11)

[Claims] 1. A composite container comprising an outer container made of paper and a plastic bottle body housed in the outer container, wherein a spout of the bottle body projects to the outside through an opening of the outer container. The bottle is a biaxially stretch-oriented blow-molded product of a polyethylene terephthalate resin single layer or a laminate in which at least the innermost layer is made of polyethylene terephthalate resin, and the body area stretching ratio is 30 to
40, the thickness of the body and shoulder is 100 μm to 200 μm
As described above, the composite container is characterized by being easily formed by folding. 2. A composite container comprising an outer container made of paper and a plastic bottle body housed in the outer container, wherein a spout of the bottle body projects to the outside through an opening of the outer container. The bottle body is a polyethylene terephthalate resin whose innermost layer is a polyethylene terephthalate resin, and is a biaxially stretched blow molding product of a laminate of a condensation polymer of metaxylylenediamine and adipic acid, and the area of the body part A composite container, which is formed by folding easily with a draw ratio of 30 to 40 and wall thicknesses of a body and a shoulder of 100 to 200 μm. 3. The composite container according to claim 1, wherein the bottle body has rounded corners of a body and a bottom of 20R to 50R. 4. The bottle body is provided with folding lines for folding on the front side and the back side of the body, and reinforcing ribs are provided on the surface where the folding lines are not provided. The composite container according to claim 1, 2, or 3. 5. The outer container is a rectangular container having an inclined lid plate which is inclined downwardly toward a front plate at an upper portion thereof, and the inclined lid plate includes a first sandwiching piece connected to the front plate and a rear plate. A first U-shaped notch having a pair of opposed protrusions protruding in a direction orthogonal to the axis of the outer container is formed at the center of the upper end of the first nipping member.
The second sandwiching piece has a substantially U-shaped notch formed in the center of the lower end, and the lower half of the second sandwiching piece is overlapped and adhered on the upper half of the first sandwiching piece to form a substantially circular through hole. And the pair of opposed projections can be located outside and in the immediate vicinity of the through hole.
The composite container described in 2, 3, or 4. 6. The bottle body includes a body portion, a shoulder portion connected to the body portion and having a substantially flat inclined wall on one side, and a cylindrical spout portion connected to an upper end of the shoulder portion via a support ring. Is integrally formed, and an annular recess is formed between the support ring and the flange at the spout portion by providing a flange directly above the support ring at an appropriate interval, and the bottle body is formed on the outside. The cutout inner peripheral portion of the first sandwiching piece is inserted into the annular recess by accommodating the container in a container and inclining the center of the inclined wall of the bottle body to the inside of the bottle body to incline the spout. After restraining the movement of the spout by the pair of opposed projections, the second sandwiching piece is overlaid on the first sandwiching piece and these sandwiching pieces are bonded to each other, and the substantially circular through hole inner peripheral portion is used for pouring. 6. The outlet according to claim 5, wherein the outlet is clamped and fixed. Composite container. 7. The outer container is provided with a weakening line at a fold line at a boundary between the rear side plate and the second sandwiching piece, and by breaking the weakening line, the spout of the bottle body is provided with the inclined lid. 7. The composite container according to claim 5, wherein the bottle body can be taken out by being removed from the through hole formed in the plate. 8. The outer container is provided between the first sandwiching piece and the left side plate, and between the first sandwiching piece and the right side plate.
Folding pieces are provided via folding lines that are mountain folds, and these folding pieces are connected to each other by the outer folding pieces and the inner folding pieces through the folding lines that are valley folds, and are provided on the left and right sides of the second sandwiching piece. The adhesive piece capable of adhering to the left side plate and the adhesive piece capable of adhering to the right side plate are connected to each other via a fold line that has a weakening line and becomes a mountain fold. Composite container. 9. The outer container is a rectangular container having an inclined lid plate which is inclined downwardly toward a front plate at an upper portion thereof, and the inclined lid plate includes a first holding piece and a second holding piece. The upper end of the first sandwiching piece is connected to the first top plate through a fold line that makes a mountain fold, and the lower end of the first sandwiching piece is connected to the front plate through a fold line that makes a mountain fold. A long hole extending from the center of the lower end of the first clamping piece to the substantially central part of the first clamping piece, and the upper half of the long hole is a circular hole that straddles the first top plate and the first clamping piece. The lower half of the hole is provided with a pair of opposed protrusions that project toward each other in a direction orthogonal to the axis of the outer container, and the circular hole allows a cap attached to the top of the bottle body to be inserted therethrough. Having an inner diameter, the upper end portion of the second sandwiching piece is connected to the second top plate through a fold line that is a mountain fold, and the second sandwiching piece of the second sandwiching piece. A substantially U-shaped notch is formed at the center of the upper end, and a second circular clamping piece is further fixed on the first clamping piece to form a substantially circular through hole, and the pair of opposing protrusions are formed. It can be located outside of the through hole and in the immediate vicinity thereof.
The composite container described in 2, 3, or 4. 10. An insert-reinforcing piece is provided at an upper end portion of the first top plate of the outer container via a fold line which has a score line in the center and becomes a mountain fold, and the insert-reinforcing piece is provided on the rear plate. It can be inserted into this outer container in contact with the upper end of the inner surface, a score line is formed on the upper end of the left side plate and the upper end of the right side plate, and a mountain fold is formed on the left and right of the second sandwiching piece. A folding line, a closing piece, a folding line that becomes a mountain fold and an inserting piece are provided in this order, and the first inserting piece and the second inserting piece are cut at the upper end portion of the left side plate and the upper end portion of the right side plate. Can be inserted into this outer container through the line of sight,
A third insertion piece is formed by forming a substantially inverted U-shaped cut line that extends over the upper end of the rear side plate and the lower end of the second top plate, and the third insertion piece has a valley at the lower end. A fold line to be folded and a fold line to be a mountain fold at the center are formed in a direction orthogonal to the axis of the outer container, and the third insert piece is in contact with the upper end of the inner surface of the rear plate. The composite container according to claim 9, wherein the composite container can be inserted into the outer container through a score line of the insertion reinforcing piece inserted into the outer container. 11. The bottle body includes a body portion, a shoulder portion connected to the body portion and having a substantially flat inclined wall on one side, and a cylindrical spout portion connected to an upper end of the shoulder portion via a support ring. Is integrally formed with the support ring, and an annular recess is formed between the support ring and the flange by providing a flange directly above the support ring at an appropriate interval. After storing the bottle body in the outer container, by bending the first top plate and the first sandwiching piece to the rear plate side, the cap of the bottle body is inserted into the circular hole, and the bottle body By inclining the outlet part by indenting the central part of the inclined wall to the inside of the bottle, the lower end inner peripheral part of the elongated hole is inserted into the annular recess and the outlet part of the outlet part is formed by the pair of opposing projections. After restraining the movement, attach the second clamping piece to the front plate side. After being folded and overlapped on the first sandwiching piece, the substantially U-shaped notched inner peripheral portion of the second sandwiching piece is inserted into the annular recess of the bottle body, and then the insertion reinforcing piece, the first to third 11. The first sandwiching piece and the second sandwiching piece are each fixed by inserting the insertion piece into a predetermined position, and the spout is sandwiched and fixed by the inner peripheral portion of the substantially circular through hole. 11. The composite container described.