JP2010052742A - Pillow-shaped carton - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pillow-shaped carton that enables the use of an adhesive application device of a bottom ring-shaped that increases a sticking speed, thereby improving productivity. <P>SOLUTION: The carton is formed from a blank. The blank is designed such that two main plates 1 and 2 are continuous with each other via a crease line. Spindlelike flaps 3 to 6 are continuous with both the lengthwise ends of each of the main plates 1 and 2 via arcuate crease lines, and an adhesive flap 7 is continuous with the sidewise end of the one main plate 1 via a crease line parallel to the middle crease line. The one main plate 1 is folded relative to the other main plate 2. The adhesive flap 7 is folded relative to the one main plate 1. The adhesive flap 7 is jointed to an adhesive application area N defined on the front of the other main plate 2 and thus a tubular shape is formed. In this condition, the opposing flaps are folded so as to be laid one upon the other, thereby folding the blank into the carton. The flaps 5 and 6 continuous with both the lengthwise ends of the other main plate 2 are provided with notches 8 and 9, respectively, formed by removing the corners of the adhesive application area N of the other main plate 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention belongs to the technical field of cartons made of paperboard and the like, and more specifically, it is used for directly packing food such as pies and potato sticks sold in fast food, etc., and the pillow-shaped carton whose cross section forms a spindle shape It is about.

  Conventionally, as such a pillow type carton, there is a carton having a structure as shown in FIG. 1 in a plan view of a blank in an unfolded state and in FIG. 2 in a perspective view of an assembled state (FIG. 1, Patent Document 1, Patent (Refer to FIGS. 13 and 14 in Document 2)

  The blank is formed by punching a paperboard, and as shown in FIG. 1, two main plates 1 and 2 are connected to each other through a crease line a, and the main plates 1 and 2 are arcuate at both ends in the longitudinal direction. Spindle-shaped flaps 3, 4, 5, and 6 are connected to each other through the crease lines b, c, d, and e, and the end of the main plate 1 in the width direction is parallel to the central crease line a. The sticking piece 7 is continuously provided through the crease line f. The notches 5a and 6a provided in the flaps 5 and 6 are for forming holes for hooking the fingertips when opened.

  To assemble the blank shown in FIG. 1 into the pillow carton of FIG. 2, first, the other main plate 2 is opposed to the upper side of one main plate 1 via the fold line a, and then the other main plate 2 is set via the fold line f. The sticking piece 7 that is bent to the side is bonded to the front side of the other main plate 2 to form a sack pasting state. Next, by folding the flaps 4 and 6 through the arc-shaped crease lines c and e, a carton having shape retention is formed, and after putting an object into the carton, the arc-shaped crease lines b and d are passed through. Then, close the flaps 3 and 5 in the same way.

Japanese Utility Model Publication No. 58-98309 JP 2003-252323 A

  The conventional pillow-shaped carton described above is manufactured by putting the blank having the developed shape of FIG. 1 on a sack pasting machine, gluing the pasted piece 7 and then folding it. Specifically, while transporting the blank with its front side facing down, glue is first applied to the back side of the sticking piece 7 facing upward, and the sack is pasted while being folded as it is transported. At this time, the pasting is performed by spraying the paste from the upper nozzle on the sticking piece 7 and applying it in a pattern, or by continuously applying the paste from the upper surface with a ring to which the paste is attached. However, such a method of discharging glue with a nozzle from above or a method of applying glue with an upper ring-type glue applicator has a problem that glue dripping occurs and productivity is deteriorated. Moreover, when spraying with a nozzle, it is necessary to take the width | variety of the sticking piece 7 wide. Therefore, from the viewpoint of improving productivity, it is desired to use a bottom ring type glue applicator that can apply glue at high speed.

  The bottom ring type glue applicator is designed to immerse the lower part of the ring in the glue contained in the glue pan, scrape off the excess glue on the rotating ring with a doctor, and then against the blank running on the upper part of the ring. Apply glue from the bottom. For this reason, although there is no worry of glue dripping, it is not possible to apply glue on the back side of the sticking piece 7 for the blank conveyed with the front side facing down in the sack sticking machine. It is necessary to apply glue to the affixed portion of the main plate 2 that faces the surface.

  However, since the bottom ring type glue applicator is a system for transferring the glue attached to the ring, the glue can only be applied in a continuous line shape to the blank, so only the pasting portion of the main plate 2 is applied. In addition, the glue is also applied to the ends of the flaps 5 and 6 that are connected to the flaps. As a result, when the sack-applied ones are stacked, they stick to each other at the exposed glue and cannot be removed one by one. The problem arises. In order to prevent this, it is necessary to perform a surface treatment for adhesive peeling, and an extra step is required.

  The present invention has been made in view of such problems, and the object of the present invention is to use a bottom ring type glue applicator that can increase the bonding speed, thereby improving the productivity. To provide a shape carton.

  In order to achieve the above object, the pillow carton of the present invention has two main plates connected to each other through a crease line, and each main plate has a spindle shape at each end in the longitudinal direction via an arc-shaped crease line. Is formed of a blank in which a sticking piece is continuously provided through a crease line parallel to the central crease line at the end of the width direction side of one main plate, with respect to the other main plate. One main plate is bent, the sticking piece is bent with respect to one main plate, and the sticking piece is bonded to the glue application area on the front side of the other main plate to form a cylindrical shape, and the flaps facing each other in that state Pillow type carton assembled by folding each other so as to overlap each other, each flap connected to both longitudinal ends of the other main plate has a corner on the side where the paste application area of the other main plate is present removed The shape notch It is characterized by being kicked.

  The pillow-shaped carton of the present invention has a notch in a shape in which a corner is removed from each flap continuously provided at both ends in the longitudinal direction of the other main plate in a blank state before assembling. Since the main plate is on the side to be bonded to the sticking piece, even when applying a sack, pressing the ring while conveying the blank and applying glue along the front edge of the other main plate will cause a flap. There is no glue on the sack, and even if the sachets are stacked, they will not stick to each other. This makes it possible to use bottom ring type glue applicators that increase the paste speed, thereby improving productivity. Can be made. Moreover, it is only necessary to form a notch, and it is not necessary to carry out a surface treatment for peeling the glue to prevent sticking.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 3 is a plan view of a blank for assembling the pillow carton according to the present invention, and FIG. 4 is a perspective view of the pillow carton for assembling the blank of FIG.

  The blank is obtained by punching a paperboard, and as shown in FIG. 3 which is the front side, two main plates 1 and 2 are connected to each other through a crease line a, and both end portions of the main plates 1 and 2 in the longitudinal direction. Are respectively provided with spindle-shaped flaps 3, 4, 5 and 6 via arcuate crease lines b, c, d and e, respectively. The sticking piece 7 is continuously provided through a crease line f parallel to the crease line a.

  The flaps 5 and 6 connected to both ends in the longitudinal direction of the other main plate 2 are provided with notches 8 and 9 having a shape in which the corner on the side opposite to the sticking piece 7 is removed. Also, semi-circular cutouts 5a and 6a are provided in the center of the edge sides of the flaps 5 and 6 for forming a hole for hooking a fingertip when opening, provided as necessary. Just do it.

  In order to assemble the pillow carton shown in FIG. 4, the unfolded blank shown in FIG. 3 is first put on a sack pasting machine, and as shown in FIG. 5, the paste is applied to the glue application area N along the front edge of the other main plate 2. By applying the paste and folding it, a sack pasting state as shown in FIG. 6 is obtained. At this time, a bottom ring type glue applicator as shown in FIG. 7 is used.

  In this bottom ring type glue applicator, the lower part of the ring 12 is immersed in the glue G contained in the glue pan 11, and the glue adhering to the rotating ring 12 is scraped off by the doctor 13. The adhesive is applied in a continuous line form from the lower side to the blank B which is pushed by the roller 14 and travels at the top. The positional relationship between the ring 12 and the doctor 13 is as shown in FIG. 8. As the ring 12 is rotated in a state where the ring 12 is inserted into the groove of the doctor 13 as shown in the figure, glue is attached to the tip surface of the ring 12. In this state, the blank B is applied in a line shape.

  In this way, paste is applied while transporting the blank B with its front side facing down, so when using a method of discharging glue with the nozzle from above or a method of applying glue with an upper ring type glue applicator There is no worry about glue dripping. Further, even if the glue is applied in a continuous line shape along the edge of the other main plate 2, the flaps 5 and 6 connected to both ends of the flaps 5 and 6 are notched in a shape in which a corner is removed where the ring passes. Since there are the portions 8 and 9, as shown in FIG. 5, the flaps 5 and 6 connected to both ends in the longitudinal direction of the other main plate 2 are not glued. Therefore, even if the sack pasted blanks are stacked, they do not stick to each other.

  The sack pasted blank is assembled at the store in the same manner as the conventional one. That is, by folding the flaps 4 and 6 through the arc-shaped crease lines c and e, a carton having a shape-retaining property is formed, and after putting an object into the carton, the arc-shaped crease lines b and d are passed through. Then, close the flaps 3 and 5 in the same way.

  In the pillow carton of FIG. 4 assembled in this way, one main plate 1 is bent with respect to the other main plate 2, the sticking piece 7 is bent with respect to the one main plate 1, and the sticking piece 7 is the other. The main plate 2 is glued to the glue application region N on the front side of the main plate 2 to form a cylindrical shape, and the flaps facing each other are folded so as to overlap each other. The flaps 5 and 6 connected to both ends in the longitudinal direction of the other main plate 2 are provided with notches 8 and 9 having a shape in which the corner on the side where the paste application region N of the other main plate 2 is present is removed. However, since the flaps 5 and 6 having the notches 8 and 9 are hidden inside the flaps 3 and 4, the notches 8 and 9 are not visible from the outside.

  The embodiments of the present invention have been described in detail above. However, the pillow carton according to the present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention. It is natural that it is possible.

It is a top view of the blank which assembles the conventional pillow type carton. It is an expanded view of the blank sheet which assembles the paper container shown in FIG. It is a top view of the blank which assembles the pillow type carton concerning the present invention. FIG. 4 is a perspective view of a pillow carton in which the blank of FIG. 3 is assembled. It is the top view which illustrated the paste application | coating area | region in the blank of FIG. It is a top view which shows what stuck the blank of FIG. 5 on sack. It is the schematic of a bottom ring type glue application tool. It is explanatory drawing which shows the positional relationship of the ring and doctor in the bottom ring type glue application tool of FIG.

Explanation of symbols

1, 2 Main plate 3, 4, 5, 6 Flap 5a, 6a Notch 7 Adhering piece 8, 9 Notch 11 Glue pan 12 Ring 13 Doctor 14 Roller a to f Crease line B Blank G Glue N Glue application area

Claims (1)

  Two main plates are connected to each other through a crease line, and spindle-shaped flaps are connected to both ends of each main plate in the longitudinal direction through arc-shaped crease lines, and the width direction side of one main plate It consists of a blank in which an adhesive piece is continuously arranged through a crease line parallel to the central crease line, and one main plate is bent with respect to the other main plate, and is attached to one main plate. It is a pillow carton that is assembled by bending a piece and bonding the sticking piece to the glue application area on the front side of the other main plate to form a cylinder, and folding the flaps facing each other in this state. Each of the flaps connected to both end portions in the longitudinal direction of the other main plate is provided with a notch having a shape in which the corner on the side where the paste application area of the other main plate is present is removed. carton.

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