JP2005104507A - Sack box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sack box with excellent pressure resistance which is made by using the same material as that of an ordinary sack box and can be manufactured by the same process by a sack machine. <P>SOLUTION: This sack box is composed of a blank 10 with an extension part B provided on the outside of a gluing part 15 in a box forming part A, and the sack box is erected and a partition 18 is formed in the interior of the box by part of the extension part B by gluing the specified part of the partition 18 to the inner face of the box forming part A at the time of sack gluing. Thereby, when the box is erected for use, pressure resistance is enhanced by the inside partition 18, and as the blank 10 with the extension part B provided on the box forming part A is sack-glued, the box can be manufactured by the same process by an ordinary sack machine by using the same material as that of the ordinary sack box, and there exists no possibility of becoming high cost and decreasing productivity. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a sack box that belongs to the packaging field and is a typical paper container made of paperboard.

  Generally, what is called a paper container includes a folding box, an assembly box, a sticking box, and other boxes. Of these, the folding box is a box that is folded flat and used when used. For example, it is the cheapest and most productive box such as a caramel-type sack box. It is used in many fields including the packaging field. Such a sack box is manufactured through the basic steps of (1) printing, (2) punching and creasing, and (3) sticking.

Of the basic steps described above, the pasting step is usually performed by a box making machine called a sack machine whose principle is shown in FIG. 5, and the procedure is as follows. First, the blanks 1 fed out one by one are sandwiched between the two belts 2 and 3, and first, the emulsion type adhesive G is applied in a line shape to the side glue margin by the rotating glue wheel 4. The Next, the sheet is folded along a ruled line with a guide, bonded to the surface of the adhesive, pressed with a roller, and sent out. The products manufactured in this way are designated as a packaging unit or stored in a cardboard box called a box and delivered to a delivery destination.
Japan Printing Society, "Printing Engineering Handbook", Gihodo Publishing, March 30, 1993, p857-862

  The caramel-type sack box described above has a drawback in that the pressure resistance is low because it is a structure in which the side face is simply supported by a wall in the state of the raised box. Therefore, as a method for improving the pressure resistance, it is conceivable to use a thick paperboard as a material board. However, this causes a problem that the material cost becomes high, and the productivity is lowered due to the problem of proper folding. As another method, there is a method of inserting a partition plate inside the raised box. However, since it is a manual operation, there is a problem that the cost is increased and the productivity is disadvantageous.

  The present invention has been made in view of such problems, and the object of the present invention is to use the same material as a normal sack box and to manufacture it in the same process by a sack machine. It is to provide a sack box with excellent pressure resistance.

  In order to achieve the above object, the sack box of the present invention is composed of a blank provided with an extension part on the outside of the margin part in the box forming part, and a predetermined part of the extension part is glued to the inner surface of the blank when the sack is applied. Thus, the partition portion is formed inside the box by a part of the extension portion at the same time as it is raised.

  When the sack box of the present invention is opened and put into use, the inner partition portion has high pressure resistance. In addition, since a blank with an extension is provided in the box forming part, it can be manufactured in the same process using a normal sack machine using the same material as a normal sack box, and the cost is not increased and the productivity is increased. It won't get worse.

  FIG. 1 is a developed view showing an example of a blank for forming a sack box of the present invention, and FIG. 2 is an explanatory view showing a procedure for sticking the blank of FIG.

  The blank 10 shown in FIG. 1 is formed by punching a printed board, and includes a box forming part A and an extension part B. The box forming part A is a section that can form a normal sack box by itself, and the side panel 12, the wide panel 13, the side panel 14, and the margin part 15 are sequentially passed through the ruled lines on one side of the long side of the wide panel 11. The main flap 16 and the insertion piece 17 are connected to both sides on the short side of the wide panel 11, and side flaps 12a and 14a are provided on the side panels 12 and 14, respectively. The extension portion B is connected to the outside of the margin portion 15 via a ruled line, and includes a partition portion 18 provided continuously to the margin portion 15 and an affixing portion 19 provided thereto continuously via the ruled line.

  This blank 10 is sack pasted by the known sack machine described in FIG. The procedure is as follows. First, as shown in FIG. 2A, adhesive G is applied in a line shape to a predetermined portion of the wide panel 13, that is, a portion corresponding to the pasting portion 19, and bent at the boundary between the side panel 14 and the pasting portion 15. And paste them together. Next, as shown in FIG. 2 (b), the adhesive G is applied in a line shape on the front side of the margin 15 and folded and bonded at the boundary between the wide panel 13 and the side panel 12, and in this state, the roller is pressure-bonded. Paste the sack. The sack box in a state where the sack is pasted and folded in this manner is raised as shown in FIGS. 2 (b) to 2 (c) when in use. The portion 18 is self-supporting and is reinforced against pressure in the vertical direction. It should be noted that the adhesive G for sticking the sack is not applied to the insertion portion of the insertion piece 17.

  FIG. 3 is a development view showing another example of a blank forming the sack box of the present invention, and FIG. 4 is an explanatory view showing a procedure for sticking the blank of FIG.

  The blank 20 shown in FIG. 3 is formed by punching out printed board, and includes a box forming part A and an extension part B. The box forming section A is a section that can form a normal sack box by itself, and a side panel 22, a wide panel 23, a side panel 24, and a margin part 25 are sequentially passed through a ruled line on one side of the long side of the wide panel 21. The main flap 26 and the insertion piece 27 are connected to both sides on the short side of the wide panel 21, and side flaps 22 a and 24 a are provided on the side panels 22 and 24, respectively. The extension B is connected to the outside of the margin part 25 via a ruled line, and a partition part 28 that is connected to the glue part 25, a bridge part 29 that is successively connected to the glue part 25 via a ruled line, and a partition part. 30 and a pasting portion 31.

  This blank 20 is sack pasted by the known sack machine described in FIG. The procedure is as follows. First, as shown in FIG. 4A, adhesive G is applied in a line shape to a predetermined portion of the wide panel 23, that is, a portion corresponding to the vicinity of both ends of the bridging portion 29, and the side panel 24 and the margin portion 25. Bend at the boundary of and stick together. Next, as shown in FIG. 4B, the partition portion 30 and the pasting portion 31 are folded with respect to the bridging portion 29. Next, as shown in FIG. 4 (c), adhesive G is applied in a line shape on the front side of the margin portion 25 and the back side of the pasting portion 31, and is folded and bonded at the boundary between the wide panel 23 and the side panel 22. In this state, the roller is pressure-bonded and the sack is pasted. The sack box in a state where the sack is pasted and folded in this manner is raised as shown in FIGS. 4 (c) to 4 (d) when in use. The portions 28 and 30 are self-supporting and are reinforced against the pressure in the vertical direction. Note that the adhesive G for sack sticking is not applied to the insertion portion of the insertion piece 27.

  In addition, although the sack box demonstrated in FIG.3, 4 has provided two partition parts, such a partition part can also be made into three or more by increasing a bridging part.

It is an expanded view which shows an example of the blank which forms the sack box of this invention. It is explanatory drawing which shows the procedure which sticks the blank of FIG. 1 and unfolds. It is an expanded view which shows another example of the blank which forms the sack box of this invention. It is explanatory drawing which shows the procedure which sticks the blank of FIG. 3 and unfolds. It is explanatory drawing which shows the principle of a suck machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Blank 11, 13 Wide panel 12, 14 Side panel 12a, 14a Side flap 15 Glue part 16 Main flap 17 Insertion piece 18 Partition part 19 Gluing part 20 Blank 21, 23 Side panel 22, 24 Side panel 22a, 24a Side flap 25 Glue part 26 Main flap 27 Insertion piece 28 Partition part 29 Bridging part 30 Partition part 31 Pasting part A Box formation part B Extension part

Claims (1)

It consists of a blank with an extension on the outside of the margin part in the box forming part, and when the sack is pasted, the predetermined part of the extension is glued to the inner surface of the blank. A sack box characterized in that a partition is formed in the box.

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