JP2003200967A - Packaging material for can - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging material for cans, which can be easily assembled manually, while a plurality of cans are packaged. <P>SOLUTION: The packing material for the cans is used for packing an assembly consisting of a plurality of arranged cans 1 by enclosing the assembly with a paperboard 2 from the bottom to both side faces to the upper face. The paperboard 2 comprises a bottom wall 3, a pair of side walls 4 provided as the extensions from both side edges of the bottom wall 3 and folded upward to cover the side of the cans 1, and a pair of upper walls 5, 6 provided as the extensions from the front ends of the side walls 4 and folded horizontally to cover the upper surface of the cans 1. Each upper wall 5, 6 is provided with engaging holes 7, 8 and a tongue-shaped engaging strip 9 is provided as an extension at least in each engaging hole 7 of the upper wall 5 overlapped over the upper wall 6. The upper walls 5, 6 are overlapped up and down as the positions of engaging holes 7, 8 are matched, and the engaging strips 9 of the upper wall 5 placed higher are folded downward to be inserted in and engaged with the engaging holes 8 of the upper wall 6 placed lower, thus the upper walls 5, 6 are coupled together. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a can packaging body used for packaging a plurality of cans of canned beer, canned beer, canned juice and other canned beverages for sale. It is a thing.

[0002]

2. Description of the Related Art When selling canned beverages such as canned beer at retail stores, individual cans are sold individually or 24
In addition to packing a can of about a book in a cardboard box and selling it in a box, several cans (generally 6 in many cases) are wrapped in thick paper to wrap several cans together. There is also a selling method called "multi-pack" that is sold.

FIG. 14 shows a case in which a plurality of cans 1 are arranged in a matrix in a vertical and horizontal direction, and can be multi-packed by enclosing a can 1 with a thick paperboard 2 from the bottom surface to both side surfaces and the top surface. 1 shows a conventional example of a package A (see, for example, Japanese Patent Laid-Open No. 11-193060). That is, in the paperboard 2 which constitutes the package A for cans, the side wall portions 22 and 22 are extended downward at both side edges of the upper wall portion 21, and the bottom wall portions 23 and 24 are respectively provided at the lower end edges of the side wall portions 22. Is formed by being extended, and a tongue-shaped insertion engagement piece 25 is projected from one bottom wall portion 23 and the other bottom wall portion 24 is formed.
A slit is provided in the receiving engagement hole 26. The upper wall portion 21 is provided with a pair of C-shaped cuts to form finger insertion holes 27, 27.

In order to collectively package about six cans 1 by using the can packaging body A thus formed, FIG.
As shown in FIG. 4 (b), the side wall 22 is bent toward the side surface of the can 1 with the upper wall 21 stacked on the upper surface of the can 1, and the bottom wall portions 23 and 24 are respectively moved toward the bottom surface of the can 1. The bottom wall portions 23 and 24 are joined together by bending and inserting the engaging pieces 25 into the receiving engaging holes 26 and engaging them. In this way, as shown in FIG. It is possible to wrap an assembly of the cans 1 arranged in a bundle by surrounding them with paperboard 2 from the upper surface to both side surfaces and the lower surface. In this way, a plurality of cans 1 are put together for sale in a multi-pack, and the sold multi-pack is inserted into the pair of finger insertion holes 27 of the upper wall portion 21 of the paperboard 2 with, for example, a thumb and an index finger. It can be carried by picking it up with.

[0005]

However, in the case packaging A formed as described above, when carrying it,
Since the weight of the plurality of cans 1 is applied to the bottom wall portions 23 and 24, when the insertion engagement piece 25 and the receiving engagement hole 26 are disengaged due to the weight of the cans 1, the bottom wall portions 23 and 24 are There is a risk that the connection of 24 will open and the can 1 will fall. For this reason, it is necessary to devise a retaining shape so that the insertion engagement of the insertion engagement piece 25 with respect to the reception engagement hole 26 does not come off, and the shapes of the insertion engagement piece 25 and the reception engagement hole 26 are complicated. As a result, the package A for packaging the can 1 is formed.
The workability of inserting the insertion engagement piece 25 into the reception engagement hole 26 when assembling is deteriorated. Moreover, as shown in FIG. 14B, the insertion work of the insertion engagement piece 25 and the receiving engagement hole 26 is performed on the bottom side of the can 1, so it is necessary to turn the can 1 upside down. However, in this respect also, there was a problem in the workability of insertion. As described above, the above can package A has a problem that the workability in assembling is poor.

When the operation of packaging the cans 1 is carried out in an automated line of a shipping factory, the workability of the above-mentioned assembling is not a particular problem in many cases. However, as described above, in the sales form of canned beverages such as canned beer, about 24 cans 1 are packed in a cardboard box and sold in a box, or about 6 cans 1 are packed in a can package A. In addition to selling in multi-packs, the cans 1 are also sold individually, and in some cases, the paperboard 2 of the can packaging A that was shipped in multi-packs was torn at the store. Often, the can 1 is taken out and the can 1 is sold in bulk. In such a case, the paperboard 2 of the can package A is wasted, and the disposal of the paperboard 2 requires a cost. Therefore, the can 1 is shipped to the store without being multi-packed with the can package A, and at the same time, the multi-pack can package A is supplied to the store separately from the can 1, and the can is sold at the store. When 1 is sold in a multi-pack, it has been proposed that at a store, a plurality of cans 1 are packed in a multi-pack can packaging body A so that they can be packed together. As described above, when the can 1 is wrapped in the can packaging A at the store, it is necessary to assemble the can 1 while manually packaging the can 1 in the can packaging A. Is a big problem.

In packaging several cans 1 with the can packaging body A, two sides of the can packaging body A are opened as shown in FIG. 14 (a). It is necessary to prevent 1 from dropping out. Therefore, in the can packaging body A of FIG. 14, a side holding piece 28 is provided so as to extend to the side edge of the side wall portion 22, and when the can packaging body A is assembled, the side holding piece 28 is bent inward, The side holding piece 28 is brought into contact with the side surface of the can 1 to prevent the can 1 from falling out of the opening on the side surface. However, this product has a problem that the workability of assembly is further deteriorated because it is necessary to bend the side part holding piece 28 when assembling the can package A, and the side part holding piece 28 has its tip. Since it only contacts the outer peripheral side surface of the can 1 which is a cylindrical body, it is not possible to reliably prevent the curved surface of the outer periphery of the can 1 from exceeding the side holding piece 28, and when a large impact is applied. There is a problem that the can 1 may fall off from the side opening.

The present invention has been made in view of the above points, and an object of the present invention is to provide a can packaging body that can be easily assembled while packaging a plurality of cans even by a manual labor of a person. It is also an object of the present invention to provide a can packaging body that can prevent the can from falling off without affecting the assembling property and can surely prevent the can from falling out. .

[0009]

According to a first aspect of the present invention, there is provided a can packaging body, in which a plurality of cans 1 arranged in a bundle form an aggregate of cans 1 from a bottom surface to both side surfaces and an upper surface. In a package A for a can which is surrounded by 2 and wrapped, a paperboard 2 is bent so that it is extended to the bottom wall 3 on which the can 1 is placed and both side edges of the bottom wall 3 and rises upward. By this, a pair of side wall portions 4 and 4 that covers the side surface of the can 1 and a pair of upper portions that cover the upper surface of the can 1 while vertically overlapping by being extended at the tips of the side wall portions 4 and 4 and bent horizontally inward. Tongue-like engagement is formed in the engagement holes 7 of the upper wall portion 5 which are formed from the wall portions 5 and 6 and are provided with the engagement holes 7 and 8 in the upper wall portions 5 and 6 respectively. With the piece 9 extended, the pair of upper wall portions 5 and 6 are vertically stacked with the engagement holes 7 and 8 aligned with each other. The engagement piece of Rutotomoni upper upper wall portion 5 9
Is bent downward and inserted into and engaged with the engagement hole 8 of the lower upper wall portion 6.

According to a second aspect of the present invention, in the first aspect, the engagement holes 7 and 8 are provided in pairs on the upper wall portions 5 and 6 at intervals suitable for inserting two fingers of one hand. It is characterized by being provided.

According to the third aspect of the present invention, in the first or second aspect, the upper positioning opening 11 into which the peripheral edge of the upper end of the can 1 is fitted is provided at the tip of each of the side walls 3 and 4. It is characterized by consisting of.

The invention according to claim 4 is based on any one of claims 1 to 3, wherein two folds 12a and 12b are provided in the width direction at the base of each side wall and the two folds 12a and 12b are formed. It is characterized in that a lower positioning opening 13 into which the peripheral edge portion of the lower end portion of the can 1 is fitted is provided between them.

The invention according to claim 5 is the method according to any one of claims 1 to 4, wherein lower holding pieces 14 and 14 are provided on both side edges of the bottom wall portion 3 in the width direction, and each lower holding piece 14 is extended. Adhesive pieces 15 and 16 extending from both ends are adhered to the inner surfaces of the side wall portions 4 and 4, respectively, and the side wall portions 4 and 4 are raised upward, whereby the lower holding piece 14 is bent upward and rises. It is characterized in that it is configured to be held in a state.

The invention according to claim 6 is the method according to any one of claims 1 to 4, wherein lower holding pieces 14 and 14 are provided on both side edges of the bottom wall portion 3 in the width direction, and the lower holding pieces 14 are provided. Extending the connecting pieces 17, 17 at both ends, each lower holding piece 14
The lower holding piece 14 is bent upward and held in a standing state by connecting the connecting pieces 16 facing each other on the upper side of the bottom wall portion 3.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.

FIG. 1 shows an example of an embodiment of the present invention. The can package A in FIG. 1 is a single piece of paperboard 2 in FIG.
It is formed by bending and assembling. The paperboard 2 is formed in a rectangular shape as a whole, and the side wall portions 4 are provided on both sides of the bottom wall portion 3 in the central portion, and the extended leading edge of each side wall portion 4 (that is, the bottom wall portion 3).
The upper wall portions 5 and 6 are formed to extend from the end edge on the opposite side).

Two folds 12a, 12b are formed between the bottom wall 3 and each side wall 4 in the width direction, and a plurality of positions in the width direction of the paperboard 2 are provided between the folds 12a, 12b. Lower positioning openings 13 are provided (three locations in the illustrated embodiment). Further, a notch 31 is formed in the central portion of the opening edge portion on the upper wall portions 5 and 6 side of each lower positioning opening portion 13. A fold line 32 extending in the width direction is formed between each side wall part 4 and the upper wall parts 5 and 6, and the tip of each side wall part 4 corresponds to the lower positioning opening 13 of the paperboard 2. The upper positioning openings 11 are provided at a plurality of positions in the width direction. Each of the upper positioning openings 11 is opened in a substantially V shape in which the end on the side of the bottom wall 3 is narrowed, and the above-mentioned wide ends of the upper positioning openings 11 are connected to each other. A fold line 32 is provided.

By forming a pair of C-shaped cuts 34 on the upper wall portions 5 and 6, respectively, the upper wall portions 5 and 6 are formed.
A pair of engaging holes 7 and 8 are provided in each. A pair of cuts 34 are formed in each of the upper wall portions 5 and 6 so as to be aligned in the width direction of the paperboard 2, and the engagement holes 7 and 8 are formed.
Is formed on the inner peripheral side of the C-shaped cut 34.
In the state of FIG. 2, the engagement holes 7 and 8 are closed by the engagement pieces 9 and 10 extending into the C-shaped cut 34. A fold line 35 is formed at the base of each of the engagement pieces 9 and 10, and a pair of C-shaped cut lines 34 in each of the upper wall portions 5 and 6 are formed so that the fold lines 35 face each other. .

Of the pair of upper wall portions 5, 6, one upper wall portion 5 has a pair of tongue-shaped insertion engagement pieces 36 at its tip edge (that is, the edge opposite to the side wall portion 4). Is protruding. The other upper wall 6 is provided with a slit at a position facing the insertion engaging piece 36, and a receiving engaging hole 37 is formed. A cut 38 is provided in the receiving and engaging hole 37 in the direction of the tip edge of the upper wall portion 6, and a fold 39 is formed between the tip of the cut 38 and the receiving and engaging hole 37.

A can packaging body A is formed by the paperboard 2 as shown in FIG. 2, and several cans (six in the illustrated embodiment) cans 1 are formed by using the packaging material A for cans. When packing the cans in a state where they are gathered together, first, in a state where the can packaging body A is expanded as shown in FIG. 2, a plurality of cans 1 are regularly arranged and placed on the bottom wall portion 3. To do. Then crease 12
The side wall portions 5 and 6 are bent upward at a and 12b so as to rise upward so that the side wall portions 5 and 6 extend along the side surface of the can 1. Next, each of the upper wall portions 5 and 6 is bent inward at the fold line 32, the upper wall portion 5 is superposed on the upper wall portion 6 on the upper surface of the can 1, and the upper wall portion 6 is received in the receiving engagement hole 37. The insertion engagement piece 36 of the portion 5 is inserted and engaged. Here, the notch 38 and the fold line 39 provided in the receiving / engaging hole 37 facilitate the opening of the receiving / engaging hole 37 formed by the slit, and the receiving / engaging hole 3 is formed.
The insertion operation of the insertion engagement piece 36 into the connector 7 is facilitated.

When the upper wall portions 5 and 6 are superposed in this manner, the engaging hole 7 of the upper wall portion 5 and the engaging hole 8 of the lower wall portion 6 are vertically moved as shown in FIG. 3 (a). In this state, the engaging piece 9 of the upper upper wall portion 5 is pushed downward as shown by the arrow in FIG.
It can be bent downward at 5 and inserted into the engaging hole 8 of the lower upper wall portion 6. The engaging piece 9 of the upper wall 5 is the upper wall 6
The engaging pieces 10 are bent together to open the engaging holes 8 and are inserted into the engaging holes 8 as shown in FIG. 3B, and the engaging pieces 9 are engaged with the engaging holes 8. Yes, this upper wall 5
The upper wall portions 5 and 6 can be coupled by the engagement of the engaging piece 9 and the engaging hole 8 of the upper wall portion 6. Here, if the diameter of the C-shaped cut 34 of the upper wall portion 5 is formed to be smaller than the diameter of the C-shaped cut 34 of the upper wall portion 6, the diameter of the engagement piece 9 of the upper wall portion 5 becomes smaller. The diameter is made smaller than the diameter of the engagement hole 8 of the upper wall portion 6, and the insertion operation of the engagement piece 9 into the engagement hole 8 is facilitated. The engagement piece 10 on the inner periphery of the engagement hole 8 of the lower upper wall portion 6 is not particularly necessary and may be cut off. Further, since the upper wall portions 5 and 6 can be joined by the engagement between the engagement piece 9 and the engagement hole 8, the engagement between the insertion engagement piece 36 and the receiving engagement hole 37 is not necessary. And these are not essential in the present invention.

By joining the upper wall portions 5 and 6 in this manner, the can packaging body A can be assembled. As shown in FIG. 1, a plurality of cans 1 are arranged together.
From the bottom to the side and top on both sides 1
It can be wrapped by being wrapped with a can packaging body A made of a plurality of paperboards 2, and a plurality of cans 1 can be multi-packed with the can packaging body A for sale. Where can 1
When assembling the package A for cans while packaging
With the can 1 placed on the bottom wall 3 of the paperboard 2, the side wall 4
Since the work can be performed by wrapping the side surface or the upper surface of the can 1 with the upper wall portion 5 and the engaging piece 9 and the engaging hole 8 can be inserted on the upper side of the can 1, the conventional operation can be performed. Unlike the case of FIG. 14, it is not necessary to turn the can 1 upside down. Further, the weight of the can 1 packed in the can packaging A is received by the bottom wall portion 3 at the center of the paperboard 2, and the weight of the can 1 is not directly applied to the joint portion of the upper wall portions 5 and 6. Therefore, in order to prevent the engagement between the engagement piece 9 and the engagement hole 8 from coming off, as in the conventional case of FIG.
It is not necessary to make a complicated design of the retaining shape, and the workability of inserting the engagement piece 9 into the engagement hole 8 does not deteriorate. As described above, the workability of assembling the can packaging body A is improved, and even in the manual work of a person at a store or the like, a plurality of cans 1 can be packaged while a single board 2 is used for packaging the cans. The package A can be easily assembled.

Here, the pair of engagement holes 7 and 8 respectively provided in the upper wall portions 5 and 6 are formed at intervals such that two fingers of an adult, for example, a thumb and an index finger can be inserted at the same time. is there. For example, it is preferable to form each pair of engagement holes 7 and 8 at a distance of about 5 cm to 10 cm as the distance between the centers of the engagement holes 7 and 8. By forming the engagement holes 7 and 8 at such intervals, two fingers of one hand are inserted into the pair of engagement holes 7 and 7 of the upper wall portion 5 from above and the engagement holes 7 and 8 are formed. By pushing the engagement pieces 9 and 9 on the inner periphery of 7, the engagement pieces 9 and 9 can be inserted into and engaged with the pair of engagement holes 8 and 8 of the upper wall portion 6. By inserting two fingers of one hand into the engaging holes 7 and 7, the engaging pieces 9 and 9 are simultaneously engaged with the pair of engaging holes 8 and 8 to join the upper wall parts 5 and 6. Is something that can be done. In addition, for the can in a state in which the upper wall parts 5 and 6 are joined by pinching the upper wall parts 5 and 6 with the two fingers of one hand inserted in the engagement holes 7 and 8 in this manner and the can 1 is packaged. The package A can be lifted and carried.

When assembling the can packaging A while assembling the can 1 by connecting the upper wall portions 5 and 6 as described above,
The side wall portion 4 of the can packaging body A is pressed against the side surface of the can 1 so as to be pressed against it. Here, a can of beer or Happoshu 1
In the standard shape of No. 1, the outer peripheral portion of the lower end of the can 1 is formed as a throttle-shaped portion 1a whose diameter decreases obliquely inward and downward, and the outer peripheral portion of the upper end of the can 1 is formed as a diaphragm-shaped portion 1b whose diameter decreases obliquely inward. ing. Then, the lower end of the side wall portion 4 is folded in two steps by the pair of fold lines 12a and 12b, as shown in FIG.
As shown in (a), there is an inclined surface 4b that rises obliquely outward along the narrowed portion 1a at the lower end of the can 1, and the lower positioning opening 13 is opened at this inclined surface 4b. The can 1 packaged in the can package A is positioned by positioning the can 1 by positioning the outer periphery of the upper portion of the lower end drawn portion 1a into the lower positioning opening 13. It can be fixed in the package A. At this time, the notch 31 formed in the lower positioning opening 13 is expanded by the side surface of the lower portion of the can 1 as shown in FIG. 4B, so that the outer peripheral portion of the lower end of the can 1 is opened at the lower positioning opening. The can 1 can be deeply fitted into the can 13 to firmly position and fix the can 1.

Further, an upper positioning opening 11 is provided at the upper end of the side wall portion 4, and the can 1 packaged in the can packaging A has an upper positioning opening 1 at the outer periphery of the upper end.
The can 1 can be positioned and fixed in the can package A by being fitted into the can 1. At this time, the upper end portion of the side wall portion 4 is inclined along the narrowed portion 1b at the upper end portion of the can 1 as shown in FIG.
The can 1 packaged inside is deeply fitted into the upper positioning opening 11 by this inclination of the upper end of the side wall part 4, and the can 1 can be firmly positioned and fixed.

As described above, by fitting the upper end of the can 1 packaged in the can packaging A into the upper positioning opening 11, and the lower end of the can 1 into the lower positioning opening 13, respectively. The can 1 can be positioned and fixed in the can packaging A, and the can 1 can be prevented from falling off from the openings at both ends in the width direction of the can packaging A. It is not necessary to bend a part of the paperboard 2 to form a piece for holding the can 1 as in the case of FIG. 14, and the workability of assembly can be further improved.

FIG. 6 shows another embodiment of the present invention. As shown in FIG. 7, the can package A has the structure shown in FIG.
Similar to the one described above, a single piece made up of a bottom wall portion 3 in the central portion, side wall portions 4 extending on both sides thereof, and upper wall portions 5 and 6 extending at the leading edge of each side wall portion 4. It is formed of paperboard 2. A single fold line 41 is formed between the bottom wall portion 3 and the side wall portion 4 in the width direction of the paperboard 2. The fold line 32 between the side wall portion 4 and the upper wall portions 5 and 6 and the upper positioning opening 11 at the tip of the side wall portion 4 are formed in the same manner as in FIG. Further, by forming a pair of C-shaped cuts 34 on each of the pair of upper wall portions 5 and 6 as in the case of FIG. 2,
A pair of engaging holes 7 and 8 are provided, and engaging pieces 9 and 10 extending into the engaging holes 7 and 8 are provided.

Lower holding pieces 14 are integrally extended on both side edges of the bottom wall portion 3 in the width direction, and folds 42 are formed at the base of the lower holding pieces 14. Adhesive pieces 15 are provided on both end edges of each lower holding piece 14 on the longitudinal side of the paperboard 2.
16 is extended, and folds 43 are formed at the bases of the adhesive pieces 15 and 16, respectively. A fold line 44 is provided at one end of each lower holding piece 14 and is inclined toward the other end toward the other end at an angle of 45 °. An edge opposite to the end where the fold line 43 is provided. The adhesive piece 15 extended to
A fold line 45 is provided across one side of the adhesive piece 15 diagonally with one end of the fold line 42 and inclined outward at an angle of 45 °.

Then, as shown in FIG. 8, each lower holding piece 1
4 is bent to the upper surface side of the bottom wall portion 3 at the fold line 42, the tip of the adhesive piece 15 is folded back inward at the fold line 45, and the folded back triangular portion 15a is bonded to the end portion of one side wall portion 4,
Further, the triangular portion 14a on the end side of the fold 44 of the lower holding piece 14 is folded back to the outside at the fold 44 and the adhesive piece 1
6 is bent inward at the fold line 43, and the adhesive piece 16 is adhered to the end portion of the other side wall portion 4. In this one,
In this way, with the adhesive pieces 15 and 16 adhered to the side wall portions 4 and 4, the side wall portion 4 on the side to which the adhesive piece 16 is adhered is folded into a crease 4.
By folding it by 1 and stacking it on the bottom wall portion 3, it can be stored in a compact form as shown in FIG.

When packing a plurality of cans 1 in a state where the cans 1 are collectively assembled using the packaging body A for cans formed as described above, first, from the storage state of FIG. Four
Is bent at the fold line 41 and rises upward. When the side walls 4 and 4 are raised, the lower holding piece 14 is pulled up by the side walls 4 and 4 and rises at both side edges of the bottom wall 3 as shown in FIG. In this way, the side walls 4, 4 and the lower holding pieces 14, 14 stand up so that the four sides of the bottom wall 3 are enclosed, and a plurality of bottom walls 3 are enclosed on the inside of the enclosure. The can 1 can be placed and accommodated.

Next, the upper wall portions 5 and 6 are bent inward at the folds 32, and the upper wall portion 5 is placed on the upper wall portion 6 on the upper surface of the can 1.
Overlap. In the state where the upper wall portions 5 and 6 are superposed in this way, the engaging hole 7 of the upper wall portion 5 and the engaging hole 8 of the lower wall portion 6
Are vertically aligned with each other, and the engaging piece 9 of the upper wall 5 is pushed downward in the same manner as described above,
Can be inserted into and engaged with the engagement hole 8 of the upper wall portion 6, and the upper wall portions 5 and 6 can be joined by this engagement. By assembling the upper wall portions 5 and 6 in this way, the can packaging body A can be assembled. As shown in FIG. 6, a plurality of cans 1 are arranged together.
From the bottom to the side and top on both sides 1
It can be wrapped by being wrapped with a can packaging body A made of a plurality of paperboards 2, and a plurality of cans 1 can be multi-packed with the can packaging body A for sale.

Here, the package A for cans is opened at both ends in the width direction, but since the lower holding pieces 14 are erected at both end edges of the bottom wall portion 3 at the lower end of this opening. It is possible to reliably prevent the can 1 packaged in the can packaging body A from falling out of this opening. Further, an upper positioning opening 11 is provided at the upper end of the side wall portion 4, and the can 1 packaged in the can packaging body A has an outer peripheral portion of the upper end as an upper part as in the case of FIG. 5 described above. It is fitted into the positioning opening 11. Therefore, the can 1 can be positioned and fixed in the can packaging body A.

FIG. 11 shows another embodiment of the present invention. As shown in FIG. 12, the paperboard 2 which constitutes the can package A does not have the fold line 44 in the lower holding piece 14 and has a lower part. It is formed in the same manner as that of FIG. 7 except that connecting pieces 17 and 17 are extended from both ends of the holding piece 14 instead of the adhesive pieces 15 and 16. A crease 47 is formed at the base of each connecting piece 17.
Is formed, and the notch 48 for engagement is provided in the front portion of each connecting piece 17 in the range of approximately 1/2 in the width direction. The engagement notch 48 is provided at a position at a distance of ½ of the width dimension of the bottom wall 3 from the base of the connecting piece 17, and a guide notch 49 is formed at the open end of the engagement notch 48. is there.

When the can packaging A formed as described above is used to pack several cans 1 in a state where the cans 1 are gathered together, the lower holding pieces 14 and 14 are first bent at the folds 42. The connecting pieces 17 and 17 are raised to the upper side, the connecting pieces 17 are bent inward at the fold line 47, and the engaging notches 48 and 48 of the connecting pieces 17 and 17 facing each other are inserted into each other, so that the connecting pieces 17 and 17 are bottom walls. The upper surface of part 3 is bonded. In this way, as shown in FIG. 13, the lower holding piece 14 surrounds the upper surface of the bottom wall 3 around the four circumferences.
A square frame can be formed by the connecting piece 17 and the plurality of cans 1 are placed on the bottom wall portion 3 inside the square frame composed of the lower holding piece 14 and the connecting piece 17. Can be accommodated.

Next, the side walls 4 are raised at the folds 41, and the upper wall parts 5 and 6 are bent inward at the folds 32.
By engaging the upper wall portion 5 with the upper wall portion 6 on the upper surface of the can 1 and pushing the engaging piece 9 of the upper upper wall portion 5 downward, the engaging piece 9 is engaged with the upper wall portion 6. The upper wall portions 5 and 6 can be joined by inserting and engaging with the hole 8. By assembling the upper wall portions 5 and 6 in this manner, the can packaging body A can be assembled. As shown in FIG. Can be surrounded and packaged with a can packaging A consisting of a single paperboard 2 on both sides and the upper surface, and a plurality of cans 1 can be multi-packed with the packaging A for can for sale. You can Here, the package A for a can is opened at both ends in the width direction, and a lower holding piece 14 which is erected from both side edges of the bottom wall portion 3 is provided at the lower end of this opening. It is possible to reliably prevent the can 1 packaged in the packaging body A from falling off from this opening. An upper positioning opening 11 is provided at the upper end of the side wall portion 4, and the outer periphery of the upper end of the can 1 packaged in the can packaging body A is fitted into the upper positioning opening 11. With this, the can 1 can be positioned and fixed in the can packaging body A.

In each of the above embodiments, the paperboard 2
It is preferable to use recycled paper manufactured by recycling recycled paper, for example, "Carrier Clift (CK) ² " manufactured by Smurfit Stone Co., Ltd. As a paperboard 2 for a multipack, a resin-mixed one has been conventionally used to improve water resistance, but such a resin-containing one cannot be recycled and must be incinerated, which is a problem in recycling. There is. In contrast, "Carrier Clift (CK) ² " manufactured by Smurfit Stone Co., Ltd. has increased water resistance without mixing resin, and is manufactured by recycling used paper. Since it can be recycled, it can be preferably used.

[0037]

As described above, in the can packaging body according to claim 1 of the present invention, an assembly of a plurality of cans is arranged as a single paperboard from the bottom surface to both side surfaces and the top surface. In a package for a can that is enclosed and wrapped, a paperboard covers the side surface of the can by being placed on a bottom wall portion on which the can is placed and on both side edges of the bottom wall portion and being bent so as to rise upward. Formed from a pair of side walls and a pair of upper walls that cover the upper surface of the can while vertically overlapping by being extended at the tip of each side wall and bent horizontally inward, and engage with each upper wall. A tongue-shaped engaging piece is extended in the engaging hole of the upper wall portion that is provided with the hole and is overlapped at least on the upper side, and the pair of upper wall portions are vertically overlapped while the engaging holes are aligned with each other. Bend the engagement piece on the upper wall above to engage the engaging hole on the lower wall below. Since so as to plug engagement,
When assembling the can packaging while packaging the cans,
With the can placed on the bottom wall, the side wall and the upper wall can be bent, and the engaging piece and the engaging hole can be inserted on the upper side of the can. Thus, it is not necessary to turn the can upside down, and the weight of the can packed in the can packaging is received by the bottom wall in the center of the paperboard, and the weight of the can is the top wall. There is no need to load directly on the joint part of the section, and there is no need to make a complicated device to prevent the engagement piece from engaging with the engagement hole, and the workability of inserting the engagement piece into the engagement hole is improved. It doesn't get worse. As described above, the workability of assembling the can packaging body is improved, and the can packaging body can be easily assembled while packaging the cans even by a manual operation of a person in a store or the like.

According to the second aspect of the present invention, in the first aspect, the engaging holes are provided in pairs on each upper wall portion at intervals suitable for inserting two fingers of one hand. By inserting the two fingers of one hand into the pair of engaging holes of the upper wall portion of the upper side from above and pushing the engaging pieces of the inner periphery of the engaging hole, The engaging piece can be inserted and engaged in the engaging hole,
Further, by pinching the upper wall portion with the two fingers of one hand while inserting it into the engaging hole, the can packaging body can be lifted and carried.

The invention according to claim 3 is the can according to claim 1 or 2, wherein the tip of each side wall is provided with an upper positioning opening into which the peripheral edge of the upper end of the can fits. The can can be positioned and fixed by fitting the upper end of the can packaged in the packaging body for the upper positioning opening, and prevents the can from falling out of the opening of the packaging body for the can. Since it is not necessary to bend a part of the paperboard to form a piece for holding the can as in the conventional case, it is possible to further improve the workability of assembling the can packaging body. It is possible.

According to the invention of claim 4, in any one of claims 1 to 3, two folds are provided in the width direction at the base of each side wall and the lower end of the can is located between the two folds. Since the lower positioning opening into which the peripheral end edge of is fitted is provided, the lower end of the can is fitted into the lower positioning opening that opens at the lower end of the side wall that is inclined by the two folds. The packaged cans can be positioned and fixed in the package for cans, and the cans can be prevented from falling out of the opening of the package for cans. It is not necessary to fold it to form a piece for holding the can, and the workability of assembling the can packaging body can be further improved.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects, lower holding pieces are provided at both side edges of the bottom wall in the width direction, and at the both ends of each lower holding piece. By bonding the adhesive pieces to the inner surface of each side wall portion and raising each side wall portion upward, the lower holding piece is bent upward and held so that it can be held in a standing state. By assembling the lower holding piece, the lower holding piece can prevent the can packaged in the can package from moving outward from the top of the bottom wall. It is possible to reliably prevent the can from falling off.

The invention according to claim 6 is the method according to any one of claims 1 to 4, wherein lower holding pieces are provided on both side edges of the bottom wall in the width direction, and connecting pieces are provided on both ends of each lower holding piece. By extending and connecting the connecting pieces facing each other of the lower holding pieces on the upper side of the bottom wall portion, the lower holding pieces are bent upward and held in a standing state. By lowering the lower holding piece by connecting the lower holding piece, the lower holding piece can prevent the can packaged in the can packaging body from moving outward from the top of the bottom wall. It is possible to reliably prevent the can from falling out of the opening.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of an embodiment of the present invention.

FIG. 2 is a plan view of the paperboard of the above embodiment.

FIG. 3 shows a part of the above embodiment,
(A), (b) is sectional drawing, respectively.

FIG. 4 shows a part of the above embodiment,
(A) is a front view, (b) is a bottom view, and (c) is a perspective view.

FIG. 5 is a sectional view showing a part of the above-mentioned embodiment.

FIG. 6 is a perspective view showing another example of the embodiment of the present invention.

FIG. 7 is a plan view of the paperboard according to the above embodiment.

FIG. 8 is a perspective view of a paperboard of the same embodiment.

FIG. 9 is a perspective view of a paperboard according to the above embodiment.

FIG. 10 is a perspective view of an assembled state of the paper board according to the embodiment.

FIG. 11 is a perspective view showing another example of the embodiment of the present invention.

FIG. 12 is a plan view of the paperboard according to the above embodiment.

FIG. 13 is a perspective view of a paperboard of the same embodiment.

FIG. 14 shows a conventional example, and (a) and (b) are perspective views, respectively.

[Explanation of symbols]

1 can 2 paperboard 3 Bottom wall 4 Side wall 5 Upper wall 6 Upper wall 7 Engagement hole 8 engagement holes 9 engagement piece 10 engagement pieces 11 Upper positioning opening 12a, 12b fold 13 Lower positioning opening 14 Lower holding piece 15 Adhesive pieces 16 adhesive pieces 17 Connecting piece

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 3E060 AA03 AB02 BC04 CA01 CA20                       CA23 CG10 CG12 DA09 DA11                       DA21 DA25 DA30 EA06 EA13                 3E067 AA22 AB26 AC03 AC12 BA20A                       BB01A BC06A DA08 EA20                       EB23 EC05 EE12 FA01 FC02                       GD10

Claims (6)

[Claims] 1. A can packaging body, in which a group of a plurality of cans are collectively surrounded by a single paperboard from the bottom surface to both side surfaces and the top surface, and the cans are placed on the paperboard. Bottom wall part, and a pair of side wall parts that extend to both side edges of the bottom wall part and are bent so as to rise upward and cover the side surface of the can. It is formed from a pair of upper wall portions that cover the upper surface of the can while being vertically overlapped with each other by forming an engaging hole in each upper wall portion and at least in the engaging hole of the upper wall portion that is overlapped on the upper side. Extend the tongue-shaped engagement piece,
With the engagement holes aligned with each other, the pair of upper wall portions are vertically stacked, and the engaging piece of the upper upper wall portion is bent downward to be inserted into the engaging hole of the lower upper wall portion and engaged. A package for a can, which is characterized by being formed. 2. The packaging for cans according to claim 1, wherein a pair of engagement holes are provided in each upper wall portion at intervals suitable for inserting two fingers of one hand. body. 3. The can packaging according to claim 1 or 2, wherein an opening for positioning an upper portion into which a peripheral edge of an upper end of the can is fitted is provided at a front end of each side wall. body. 4. The base of each side wall is provided with two folds in the width direction and a lower positioning opening into which the peripheral edge of the lower end of the can is fitted between the two folds. The packaging body for cans according to any one of claims 1 to 3 characterized by things. 5. The lower holding pieces are extended to both side edges of the bottom wall in the width direction, and the adhesive pieces extended to both ends of each lower holding piece are adhered to the inner surface of each side wall to form each side wall. 5. The can packaging body according to any one of claims 1 to 4, wherein the lower holding piece is bent upward and held in a standing state by raising the above. 6. The lower holding pieces are extended on both side edges of the bottom wall in the width direction, and the connecting pieces are extended on both ends of each lower holding piece so that the connecting pieces facing each other are connected to each other. The can packaging according to any one of claims 1 to 4, wherein the lower holding piece is bent upward to be held in a standing state by connecting the lower holding piece to the upper side of the bottom wall. body.