JP7155735B2 - Composite container - Google Patents

Description

TECHNICAL FIELD The present invention relates to a composite container having a flexible packaging bag for containing contents.

Patent Document 1 discloses a composite container having a flexible packaging bag for storing powder or grain contents such as food. This composite container comprises a flexible packaging bag and a sleeve. The sleeve is made of cardboard and formed into a cylindrical shape through which the flexible packaging bag is inserted. The front plate and back plate of the sleeve are adhered to the flexible packaging bag with an adhesive.

In addition, by pressing inward the creases on both side ends of the sleeve, pressed portions are formed in both side ends of the sleeve, and the front plate and the rear plate are curved outwardly. As a result, the flexible packaging bag is pulled back and forth by the front plate and the back plate to open the upper end opening. Further, the push-in portion allows the sleeve to hold the flexible packaging bag in an opened state and to stand on its own.

Japanese Patent Application Laid-Open No. 2006-240670

However, according to the above-described conventional composite container, there is a problem that the soft packaging bag falls off from the sleeve when holding both sides of the sleeve when a heavy content is contained therein.

SUMMARY OF THE INVENTION An object of the present invention is to provide a composite container that can prevent a flexible packaging bag from falling off from a sleeve.

In order to achieve the above object, the present invention comprises a flexible packaging bag with an open upper end, and a cylindrical sleeve made of cardboard and inserted through the flexible packaging bag, wherein the sleeve is bonded to the first adhesive portion as described above. In a composite container adhered to a flexible packaging bag, the sleeve forms a front plate and a rear plate continuously connected via creases on both side ends, and a fold line extending at least in the vertical direction on the front plate and the rear plate. a first bottom plate connected to the lower end of the front plate via a fold line; and a fold line formed at the lower end of the back plate. and a second bottom plate connected to the first bottom plate by a second bonding portion.

According to this configuration, the first bottom plate and the second bottom plate bonded together by the second bonding portion form a bottom portion that connects the bottom end of the front plate and the bottom end of the back plate.

Further, according to the present invention, in the composite container having the above structure, the first bottom plate and the second bottom plate are joined together, and one of the first bottom plate and the second bottom plate is folded back when the pushing portion is pushed. and

Further, according to the present invention, in the composite container having the above structure, the first bonding portion extends linearly in the vertical direction and is formed on the front plate and the back plate, and the first bonding portion on the front plate or the back plate is provided. The second bonding portion is arranged on an extension line of the bonding portion.

Further, according to the present invention, in the composite container having the above configuration, the first bonding portion on the front plate and the first bonding portion on the back plate are arranged with a lateral shift.

Further, the present invention provides the composite container having the above configuration, wherein a projecting portion is provided at the lower end of at least one of the first bottom plate and the second bottom plate, and the first bottom plate or the second bottom plate is folded back when the pushing portion is pushed. The second bottom plate is provided with an engaging portion with which the projecting portion engages.

Further, according to the present invention, in the composite container having the structure described above, the soft packaging bag is a stand pouch.

According to the present invention, the first bottom plate and the second bottom plate bonded by the second bonding portion form a bottom portion that connects the lower end of the front plate and the lower end of the back plate, thereby preventing the flexible packaging bag from falling off from the sleeve. can.

It is a perspective view showing a composite container of an embodiment of the present invention. 1 is a perspective view of a flexible packaging bag that constitutes a composite container according to an embodiment of the present invention; FIG. FIG. 4 is an exploded view showing a sleeve that constitutes the composite container of the embodiment of the present invention; It is a perspective view which shows the usage method of the composite container of embodiment of this invention. FIG. 4 is a perspective view showing the bottom surface of the composite container according to the embodiment of the present invention; It is a bottom view of the composite container of embodiment of this invention.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a perspective view of the composite container of this embodiment. FIG. 2 shows a perspective view of a flexible packaging bag that constitutes the composite container. The composite container 1 is formed by inserting a flexible packaging bag 10 into a tubular sleeve 20 .

The soft packaging bag 10 is formed of a soft resin film, and confectionery such as gums and gummies, and powdery and granular contents such as tablets and granular health foods are hermetically accommodated in the flexible packaging bag 10 .

The flexible packaging bag 10 is a stand pouch formed by heat-bonding the periphery with a heat-bonding portion 10a. Also, the flexible packaging bag 10 may be formed by a three-sided seal type or a four-sided seal type bonding method. A pair of opening notches 10b are provided on both side edges of the upper end of the flexible packaging bag 10 to cut off the heat-bonded portion 10a at the upper end.

The sleeve 20 has a body portion 40 and a bottom portion 50 . The body 40 consists of a front plate 21 and a rear plate 22 . Both ends of the front plate and the rear plate 22 are connected to each other via a folding line (folding line) 23, and the body portion 40 is formed in a tubular shape. The upper surface of the body portion 40 is opened to form an opening portion 40a, and the upper portion of the flexible packaging bag 10 protrudes from the opening portion 40a (see FIG. 4).

Vertically extending folding lines 27 are formed on both sides of the body 40 on the front plate 21 and the rear plate 22, respectively. The front plate 21 and the rear plate 22 are mountain-folded along the folding lines 27 by pushing both side ends of the body portion 40 inward. As a result, a pair of push-in portions 41 are formed on both sides of the body portion 40 (see FIG. 4). By forming the push-in portion 41, the trunk portion 40 is held in an open state, and the sleeve 20 is stably self-supported.

The bottom portion 50 is formed by bonding a bottom plate (first bottom plate) 51 and a bottom plate (second bottom plate) 52 . The bottom plate 51 is connected to the lower end of the front plate 21 , and the bottom plate 52 is connected to the lower end of the rear plate 22 . The lower end of the front plate 21 and the lower end of the rear plate 22 are connected through the bottom portion 50, and the flexible packaging bag 10 can be supported by the bottom portion 50. As shown in FIG. This can prevent the flexible packaging bag 10 from falling off the sleeve 20 even when the sleeve 20 is suspended.

The bottom plates 51 and 52 are bonded at their lower ends. Therefore, when the trunk portion 40 is opened, the bottom plates 51 and 52 spread in the front-rear direction, and the opening of the trunk portion 40 is covered with the bottom portion 50 . As a result, the flexible packaging bag 10 can be prevented from dropping onto the installation surface in a state in which the sleeve 20 is self-supporting.

FIG. 3 shows an exploded view of the sleeve 20. As shown in FIG. The sleeve 20 has a front plate 21 and a rear plate 22 adjacent at a fold line 23 . The rear plate 22 is divided into both sides of the front plate 21, and consists of a left area 22a and a right area 22b. An adhesive margin 24 is provided continuously at one end of the right region 22b, and the left region 22a and the right region 22b are adhered by an adhesive portion 71 formed on the glue margin 24. As shown in FIG. As a result, the sleeve 20 is formed into a cylindrical shape with the fold lines 23 as fold lines on both sides.

A rectangular bottom plate 51 is connected to the center of the lower end of the front plate 21 via a folding line 51a. A rectangular bottom plate 52 is connected to the lower right portion of the right region 22b via a folding line 52a.

Vertically extending folding lines 27 are formed at the left and right ends of the front plate 21 and the left and right ends of the rear plate 22, respectively. The folding line 27 is formed to be mountain-folded outward, and has an upper mountain-folding line 27a and a lower mountain-folding line 27b. The lower end of the upper mountain fold line 27a and the upper end of the lower mountain fold line 27b are connected via a substantially C-shaped slit 28. As shown in FIG.

The upper mountain fold line 27a extends linearly from the upper end of the slit 28 so as to be inclined upward as it approaches the fold line 23 .

The lower mountain fold line 27b extends in a generally arcuate shape from the lower end of the slit 28 toward the fold line 23 while being inclined downward and gently curved.

A pair of slits 28 are arranged symmetrically about the axis of symmetry of the folding line 23 , and a valley folding line 29 perpendicular to the folding line 23 extends linearly in the central portion of the slit 28 .

Projecting portions 51b and 52b are provided at the lower ends of the bottom plates 51 and 52 so as to protrude downward. A U-shaped cut line 51c is formed in the center of the bottom plate 51 in the vertical direction so as to protrude toward the front plate 21 side. The cut line 51c forms the contour of the engaging portion 54 (see FIG. 5) with which the projecting portions 51b and 52b are engaged. Folding lines 55 extending substantially parallel to the folding lines 51a are formed at both ends of the cut line 51c.

The bottom plates 51 and 52 are joined together at the adhesive portion 72 . The bonding portion 72 is arranged below the cut line 51c (on the side opposite to the front plate 21). As a result, when the bottom plates 51 and 52 are spread in the front-rear direction, the bottom plate 51 is valley-folded along the folding line 55, and the bottom plate 51 opens along the cut line 51c to form the engaging portion 54 (see FIG. 5). is formed.

When manufacturing the composite container 1, a hot-melt adhesive is applied to predetermined positions of the blank plate with the sleeve 20 unfolded to form the adhesive portions 71-74. The bonding portion 73 bonds the front plate 21 and the flexible packaging bag 10 together. The bonding portion 74 bonds the back plate 22 and the flexible packaging bag 10 together. At this time, the bottom plates 51 and 52 are joined together at the adhesive portion 72, and the adhesive portion 72 and the adhesive portions 71, 73, and 74 are arranged on the same surface of the blank plate. As a result, the manufacturing efficiency of the composite container 1 can be improved by reducing the man-hours of the process of applying the hot-melt adhesive.

The bonding portion 72 and the bonding portion 73 extend linearly in the vertical direction, and the bonding portion 72 is arranged on the extension line of the bonding portion 73 . Therefore, the bonded portions 72 and 73 can be continuously formed with a predetermined interval without moving the blank plate with the sleeve 20 unfolded. Therefore, the manufacturing efficiency of the composite container 1 can be further improved by reducing the man-hours of the process of applying the hot-melt adhesive.

Also, the adhesive portion 73 on the front plate 21 is arranged to be shifted to the right from the central portion in the left-right direction as viewed from the front. The adhesive portion 74 on the back plate 22 is arranged to be shifted to the left from the central portion in the left-right direction as viewed from the front.

After applying a hot-melt adhesive to a predetermined position of the blank plate, the flexible packaging bag 10 filled with contents and sealed is bonded to the front plate 21 at the bonding portion 73 . Next, after bending the left side region 22a of the sleeve 20 toward the rear side of the flexible packaging bag 10, the right side region 22b of the sleeve 20 is bent toward the rear side of the flexible packaging bag 2, and the side end portion of the left side region 22a is formed as a glue margin. 24, the production of the composite container 1 is completed. At this time, the right side region 22b and the flexible packaging bag 10 are adhered together at the adhesion portion 74, and the bottom plates 51 and 52 are adhered at the adhesion portion 72. As shown in FIG.

In the manufacturing process of the composite container 1 of the present embodiment, the composite container 1 is manufactured by adhering a blank plate via a hot-melt adhesive to the soft packaging bag 10 previously filled and sealed with contents. but not limited to. For example, first, a blank plate is attached via a hot-melt adhesive to the flexible packaging bag 10 that is open at the top and is not filled with contents, and then the content is filled and sealed through a composite. The manufacture of container 1 may be completed. In the filling step, the content is filled through the opening at the upper end. In the sealing step, the open upper end portion is heat-bonded to form a heat-bonded portion 10a and the flexible packaging bag 10 is sealed.

FIG. 4 is a perspective view showing how to use the composite container 1. FIG. When using the composite container 1 according to the present embodiment, first, the flexible packaging bag 10 is broken in the lateral direction from the notch 10b and opened, then both sides of the body 40 are gripped, and the thumb and four other than the thumb are held. Using fingers, push both sides of the body 40 inward at the same time.

As a result, the folding lines 27 are folded in the mountains to form a pair of push-in portions 41 on both sides of the body portion 40, and the front plate 21 and the rear plate 22 are curved outwardly. At this time, the bonded portion of the flexible packaging bag 10 is pulled by the front plate 21 and the rear plate 22 to open the upper end opening. Further, by forming the push-in portion 41, the sleeve 20 can hold the flexible packaging bag 10 in an open state and stand on its own.

Further, when the push-in portion 41 is formed, the protruding portion 28 a protrudes from the peripheral edge of the push-in portion 41 through the slit 28 . As a result, even if a force is applied inward to the front plate 21 and the rear plate 22 at the same time, the transmission of the force is interrupted by the cut of the slit 28, and the deformed state of the pushing portion 41 is not easily released. Therefore, overturning of the composite container 1 can be prevented.

Also, the adhesive portions 73 and 74 are arranged to be shifted in opposite directions in the horizontal direction from the center in the horizontal direction of the front plate 21 and the rear plate 22 . For this reason, the flexible packaging bag 2 is subjected to a force acting in a direction of shifting from side to side on the front and rear surfaces within the sleeve 20 . Therefore, the flexible packaging bag 2 can be easily opened.

5 and 6 are a perspective view and a bottom view showing the bottom surface of the composite container 1. FIG. 5 shows the state before forming the push-in portion 41, and FIG. 6 shows the state after forming the push-in portion 41. As shown in FIG. As both sides of the trunk portion 40 are pushed inward, the bottom portion of the trunk portion 40 opens and the bottom plates 51 and 52 spread in the front-rear direction.

At this time, the engaging portion 54 is formed by opening the bottom plate 51 along the cut line 51c. By inserting the projecting portions 51 b and 52 b into the engaging portion 54 after forming the push-in portion 41 , the projecting portions 51 b and 52 b are engaged with the bottom plate 51 . As a result, the bottom plates 51 and 52 are held in an extended state in the front-rear direction, and the folded state of the bottom plate 51 is not easily released. Therefore, overturning of the composite container 1 can be further prevented.

According to this embodiment, since the bottom plates 51 and 52 provided at the lower end of the sleeve 20 through which the flexible packaging bag 10 is inserted are adhered by the adhesive portion 72, the bottom portion connecting the lower end of the front plate 21 and the lower end of the rear plate 22 50 is formed to prevent the flexible packaging bag 10 from falling off from the sleeve 20. - 特許庁

Also, the bottom plate 51 and the bottom plate 52 are joined together, and one of the bottom plate 51 and the bottom plate 52 is folded back when the pushing portion 41 is pushed. As a result, the adhesive portion 72 and the adhesive portions 73 and 74 are arranged on the same surface of the blank plate. Therefore, it is possible to improve the manufacturing efficiency of the composite container 1 by reducing the steps in the process of applying the hot-melt adhesive.

Bonded portions 73 and 74 are formed on the front plate 21 and the rear plate 22, respectively, extending linearly in the vertical direction. is placed. Therefore, the bonded portions 72 and 73 can be continuously formed with a predetermined interval without moving the blank plate with the sleeve 20 unfolded. Therefore, the manufacturing efficiency of the composite container 1 can be further improved by reducing the number of processes in the process of applying the hot melt adhesive.

Also, the bonding portion 73 on the front plate 21 and the bonding portion 74 on the rear plate 22 are arranged with a shift in the left-right direction. As a result, a force acts on the flexible packaging bag 2 in the direction in which the flexible packaging bag 2 is displaced from side to side in the front and rear surfaces of the sleeve 20 . Therefore, the flexible packaging bag 2 can be easily opened.

In addition, projecting portions 51b and 52b are provided on the lower end of at least one of the bottom plate 51 and the bottom plate 52, and the projecting portions 51b and 52b are engaged with the bottom plate 51 or the bottom plate 52 that is folded back when the push-in portion 41 is pushed. A section 54 is provided. As a result, the bottom plates 51 and 52 are held in an extended state in the front-rear direction, and the folded state of the bottom plate 51 is not easily released. Therefore, overturning of the composite container 1 can be prevented more reliably.

Moreover, the flexible packaging bag 10 is made of a stand pouch, and the flexible packaging bag 2 is held in the sleeve 20 more stably.

INDUSTRIAL APPLICABILITY According to the present invention, it can be used for a composite container having a flexible packaging bag for containing powder or granules such as food and a sleeve for covering the flexible packaging bag.

1 composite container 2 flexible packaging bag 10 flexible packaging bag 10a thermal adhesive portion 10b notch 20 sleeve 21 front plate 22 rear plate 22a left area 22b right area 23 fold line 24 paste margin 27 fold line (fold line)
27a Upper mountain fold line 27b Lower mountain fold line 28 Slit 28a Protruding portion 29 Valley fold line 40 Body portion 40a Opening portion 41 Indentation portion 50 Bottom portion 51 Bottom plate (first bottom plate)
51a folding line 51b, 52b projecting portion 51c cut line 52 bottom plate (second bottom plate)
52a Folding line 54 Engaging portion 55 Folding line 71 to 74 Bonding portion

Claims (3)

A composite container comprising a flexible packaging bag with an open upper end and a tubular sleeve made of cardboard and inserted through the flexible packaging bag, wherein the sleeve is adhered to the flexible packaging bag by a first adhesive portion,
a front plate and a back plate on which the sleeve is connected via folds on both sides;
a pushing part that forms at least vertical folding lines on the front plate and the rear plate and holds the sleeve in an open state by pushing both ends thereof;
a first bottom plate connected to the lower end of the front plate via a folding line;
a second bottom plate connected to the lower end of the back plate via a folding line and bonded to the first bottom plate by a second bonding portion ;
The first bottom plate and the second bottom plate are joined together, and one of the first bottom plate and the second bottom plate is folded back when the pushing portion is pushed,
The first adhesive portion extends linearly in the vertical direction and is formed on the front plate and the rear plate, and the second adhesive portion is formed on an extension line of the first adhesive portion on the front plate or the rear plate. placed and
A composite container , wherein the first bonding portion on the front plate and the first bonding portion on the back plate are arranged with a lateral shift . A projecting portion is provided at a lower end of at least one of the first bottom plate and the second bottom plate, and the projecting portion engages with the first bottom plate or the second bottom plate that is folded back when the pushing portion is pushed. 2. The composite container according to claim 1 , wherein a joint is provided. 3. The composite container according to claim 1, wherein said flexible packaging bag comprises a stand pouch.

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