JP3103256B2 - Carton and its processing method and processing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carton and a method and apparatus for processing the same, and more particularly to a box-shaped carton used for packaging and the like, in which a perforation for opening is provided at a ridge. The present invention relates to a carton and a processing method and apparatus thereof.

[0002]

2. Description of the Related Art Conventionally, for example, QL for confectionery and photography
A box-shaped carton or the like for storing paper has perforations for opening guidance consisting of a large number of cuts on its surface to improve the openability. The carton is configured to be easily opened simply by applying an appropriate force (for example, February 24, 1981).
Japanese Patent Office Publication 56 (1981) -35 [3017], “Known and Collected Techniques (Sequel / Packaging Industry)”, page 120).

[0003] By the way, it is clear that it is easier to take out the items contained in the carton by opening the opening of the carton after opening. Therefore, instead of providing the opening in one plane of the carton, it is conceivable to provide the opening so as to open the entire surface of the carton. In this case, the above-described opening guide perforation may be provided on the ridge which is the peripheral edge of one surface. For example, an opening guide perforation is provided substantially all around the peripheral edge of one surface, and the perforation is provided. If the entire surface is cut along, an opening having the same size as the surface can be obtained. If a part of the perforation is left without being separated, the surface can be used as a lid that can be opened and closed.

[0004]

However, as described above, in a structure in which a perforation is provided at the peripheral edge of a surface, that is, at a ridge portion separated from an adjacent surface, a perforated cut portion is opened at the ridge portion so that an outer side is formed. When the carton is accidentally touched when carrying the carton or the like, the finger may be injured, for example, because the exposed cut edge has a sharp edge. In particular, when the perforation is a single-edged perforation that is convenient for incision from one direction, the above-described risk increases because the cut portion is more easily exposed to the outside.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to improve the safety of a carton having a perforation guide perforation provided along a ridge. It is an object to provide a method and an apparatus for processing a carton.

[0006]

According to the present invention, there is provided a carton provided with an opening guide perforation comprising a number of cuts arranged substantially linearly along a ridge. The edge of the perforated cut portion exposed to the outside is rounded in a plane perpendicular to the direction in which the ridge portion extends. Such a carton having an opening guide perforation at the ridge is, for example, a carton that opens the entire upper surface of a rectangular parallelepiped, and a front opening adjacent to the upper surface has an opening zipper (opening) substantially parallel to the upper surface. A carton having a configuration in which an opening guide perforation is provided from both ends of the zipper along ridges formed between the upper surface and the adjacent side surfaces, First, by separating the upper surface and the front surface by peeling off the opening zipper, apply a force to put the finger on the gap where the zipper was removed and pull up the upper surface side,
The load concentrates on the end of the opening from which the zipper has been removed, the perforations extending from the end to the both ridges are cut, and the entire upper surface is opened. A carton in which the edge surrounding the upper surface is cut and the upper surface is opened is called a top-open carton.

Further, according to the carton processing method of the present invention, a carton provided with an opening guide perforation comprising a large number of cuts arranged substantially linearly along the ridge is exposed outward at the ridge. The edge of the cut portion of the perforation is rounded.

Further, the carton processing apparatus of the present invention is an apparatus for carrying out the above-described carton processing method, wherein the edge of the cutout perforation for perforating the opening is pressed into the carton to be rounded. It is characterized by comprising means. As the edge rounding means, besides the method of pressing the edge inward into the carton for rounding, the edge rounding means may be used to cut off the edge to dull the edge.

The term "rounding the edge" is not limited to forming the edge into an R shape, but also refers to the general process of reducing the sharpness of the edge by chamfering the edge. .

As the carton, cardboard or the like can be used.

[0011]

The carton of the present invention has a perforation provided along a ridge in which the edge of the cutout exposed to the outside is perpendicular to the direction in which the ridge extends. Since it is rounded, even if a finger touches the ridge during handling such as transportation, there is no danger of the finger being hurt by the edge and the safety is excellent.

Further, according to the carton processing method of the present invention, in a carton having an opening guide perforation provided along a ridge, an edge of a perforated cut portion exposed outward at the ridge. Can be deformed by, for example, pressing inward of the carton, or rounded by shaving off, thereby making it possible to process a carton with a low edge sharpness and excellent safety.

Further, in the carton processing apparatus of the present invention, an edge of a perforated cut portion exposed to the outside at a ridge portion of a carton having an opening guide perforation provided along the ridge portion. Can be pressed into the carton by the edge rounding means to deform it, or it can be shaved off and rounded to form a carton with a sharp edge and excellent safety.

Hereinafter, a carton according to the present invention and a processing apparatus for rounding and perforating a perforation formed on a ridge of the carton will be described in detail with reference to the drawings.

FIG. 1A is a perspective view showing a carton of the present invention, FIG. 1C is an enlarged view showing a perforation 18 of the carton 10 in which the A section shown in FIG. 1A is enlarged, and FIG. 2 (b) is an enlarged view showing a perforation 18 'in a conventional carton, FIG. 2 (d) is a sectional view showing an II line section of FIG. 2 (b), and FIG. FIG. 2 is a development view of the carton shown in FIG. The illustrated carton 10 is a bottom extension plate in which the rear extension plates 11c and 12c are bent substantially perpendicularly to the rear plate 14 and the back surfaces thereof are respectively bent substantially perpendicular to the bottom plate 15 in the developed view of FIG. Affixed to 11b, 12b, front extension plate
11d and 12d are bent substantially perpendicularly to the front plate 16 and their rear surfaces are attached to the bottom extension plates 11b and 12b, respectively. A bent upper surface extension plate 11a, 12a is affixed, and a front flap 17a of a front upper plate 17 having an opening zipper 17b is affixed to a front lower plate 16 erected on the front surface to form a box. Top open carton.

A single-blade perforation 18 comprising a large number of cuts arranged substantially linearly along two ridges formed by the upper surface plate 13 and the upper surface extension plates 11a and 12a of the carton 10. , 19 are provided, and the perforations 18, 19
Has a structure in which the cut portion is rounded inward in the carton 10 (the same applies to the edge of the perforation 19).

As shown in FIG. 1 (a), when the opening zipper 17b is broken in the direction of arrow X as shown in FIG.
The 17 finger hook flaps 17c stand outward. When a finger is hung on the finger hook flap 17c and pinched and pulled upward, the single-edged perforations 18 and 19 are broken in the arrow Y direction, and the upper surface plate 13 and the upper surface extension plates 11a and 12a are separated from each other. The entire face plate 13 is largely opened outward.

As shown in FIG. 1D, the cut portion of the perforation 18 'of the conventional carton is opened outward by the upper surface extension plate 11a (12a) being bent with respect to the upper surface plate 13. Although the edge 18a 'of the carton 10 is exposed, the carton 10 of the present invention has the cut portion of the perforation 18 rounded inward as shown in FIG. In handling, the finger does not touch the edge 18a, and there is no risk of injury to the finger, which is excellent in safety.

3 and 4 are a front view and a side view, respectively, showing processing equipment provided with a processing device for performing processing for rounding and crushing perforations formed at the ridges of the carton. FIG. 5 shows processing for rounding and crushing perforations. It is an operation explanatory view for explaining the operation of the processing device to be applied. The illustrated processing apparatus is, for example, as shown in FIG.
As shown in FIG. 4, three single-cut perforations 18 ', 19' formed on two ridges of the carton 10 are rolled and crushed to form a set of three rollers 21, 22, 23. As shown, the roller 21 is an inverted conical taper roller having a larger cross-sectional area as going upward, the roller 22 is a cylindrical parallel roller, and the roller 23 is a conical tapered roller having a larger cross-sectional area going downward. is there. The central axes of these three rollers 21, 22, and 23 are installed at the same inclination angle with respect to the top plate of the carton 10,
As shown in FIG. 5, the rollers 21, 22, and 23 press the notches opened outward of the perforations 18 'in this order, so that the perforations 18' are rounded and crushed.

Hereinafter, a processing facility having two sets of this processing apparatus will be described. The illustrated processing equipment includes a transporting means 11 for placing and transporting a carton 10 for rounding and crushing perforations.
0, a carton positioning guide 120 for positioning the carton 10 conveyed by the conveying means 110, a positioning guide 12
Two sets of perforated roundings consisting of three rollers 21, 22, and 23 for respectively crushing two single-edged perforations 18 ', 19' formed on two ridges of the carton 10 positioned by 0. It comprises a crushing device 20.

More specifically, in the perforation rounding and crushing apparatus 20, three rollers 21, 22, and 23 are rotatably supported by roller support members 24, 25, and 26. , 26 are pivotally supported by the bracket 130 so as to be freely tilted with respect to the upper plate 13 of the carton 10, and the stopper bolts
By rotating and adjusting 131, the rotation center axes of the rollers 21, 22, and 23 are fixed so as to have a lower limit of about 60 degrees with respect to the upper surface plate 13. The two brackets 130
The upper ends of the roller support members 24, 25, 26 are supported by a support member 140 via a spring 141, and the roller support members 24, 25, 26 are brought into contact with stopper bolts 131. I have. The support members 140 are pivotally mounted on the width guides 150, respectively.
The width guide 150 is pivotally mounted on the height guide 160 according to the width of the carton 10, and is provided movably in the arrow L direction according to the height of the carton 10. I have.

Next, the operation of the processing equipment will be described.

The transport means 110 transports the placed carton 10 in the direction of arrow M. At this time, the width and height of the carton 10 are detected by a carton size detecting means (not shown), and the width direction guide is also provided by a driving means (not shown).
The height guide 160 is moved in the direction of arrow L so that 150 is at a height appropriate for the height of the carton 10, and the width between the two support members 140 is adjusted to a width appropriate for the width of the carton 10. Is moved in the direction of arrow K so that Further, with the movement of the width direction guide 150, the carton positioning guide 120 is moved in the direction of the arrow K so that the carton positioning guide 120 has a width position appropriate for the width of the carton 10.

Carton 10 transported by transport means 110
Is positioned in the width direction by the positioning guide 120, and enters the perforation rounding apparatus 20. First, the circumferential surface of the tapered roller 21 is pressed by the load of the spring 141 in the forward direction of the perforations 18 and 19 of the carton 10,
Perforation 1 at a small angle to top plate 13 of carton 10
8 and 19 are crushed (see FIG. 5B). Taper roller 21
The perforations 18, 19 crushed by the taper roller 21 enter the parallel roller 22 as the carton 10 advances, and the peripheral surface of the parallel roller 22 is pressed by the load of the spring 141, and
The perforations 18, 19 are crushed at an angle larger than that shown in FIG.
(C)). Further, as the carton 10 advances, the perforations 18 and 19 enter the tapered roller 23,
The peripheral surface of 23 is pressed by the load of the spring 141, and the perforations 18, 19 are crushed at an angle larger than that of the parallel roller 22 (see FIG. 5D).

By crushing the perforations 18 and 19 at an angle that gradually increases with respect to the upper surface plate 13 of the carton 10, the perforations 18 and 19 can be rounded and crushed without damaging the carton 10. it can. The degree of the rounding can be freely set as appropriate by adjusting the elastic force of the spring 141, the fixing position of the stopper bolt 131, the height position of the height guide 160, the width position of the width guide 150, and the like. be able to.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, a carton 10 was made using flute A paper. Carton 10 has dimensions of 210 mm
× 270 mm × 170 mm and 500 mm × 600 mm
× 300 mm two types were used.

In FIGS. 3 to 5, the processing apparatus 20 of the present invention is constituted by parts having the materials and dimensions shown in Table 1 below.

[0028]

[Table 1]

As a result, the perforation rounding dimension (radius);
2 to 5 mm, pressing force of each roller; 1 kg / roller, pressing size of each roller (dimension from contact with perforation); 2 mm, carton positioning guide dimension; carton
The following performance was obtained under the condition of +1 mm for the dimensions of 10.

That is, the carton transfer speed: 5 to 20 m /
min (common use: 15 m / min), perforation processing capacity: 10 cartons / min.

As described above, with the processing equipment of the present embodiment, the perforations 18 of the carton 10 having the opening perforations 18 and 19 provided along the ridge are exposed to the outside at the ridge. The edge 18a of the cut portion (the same applies to the edge of the cut portion of the perforation 19) is pressed inward into the carton 10 to be deformed, thereby obtaining a carton with a sharp edge and a low safety. Can be.

The above taper rollers 21 and 23, parallel rollers
Instead of 22, a perforation rounding device having a configuration in which a drum-shaped roller whose central portion of the peripheral surface is formed in a concave shape may be employed. At this time, it is desirable that the radius of curvature of the concave portion of the hourglass roller is gradually reduced in the order in which the cartons enter.

As the perforation rounding apparatus, in addition to the apparatus for rounding and perforating a perforation as described above, for example, a processing apparatus for shaving off an edge of a perforation by a grindstone-shaped polishing means to round the edge to make the sharpness of the edge dull. Can also be adopted.

[Brief description of the drawings]

FIG. 1 (a) is a perspective view showing a carton of the present invention,
(B) is an enlarged view showing a perforation 18 'in the conventional carton, and (c) is a carton 10 in which the portion A shown in (a) is
(D) is a cross-sectional view showing a cross section taken along the line II in FIG. 3 (b), and (e) is a cross-sectional view showing a cross section taken along the line II in (c).

FIG. 2 is an exploded view of the carton shown in FIG. 1;

FIG. 3 is a front view showing a processing facility provided with a processing device for performing a process of rounding and crushing a perforation formed on a ridge of a carton.

FIG. 4 is a side view showing a processing facility provided with a processing device for performing a process of rounding and crushing a perforation formed in a ridge of a carton.

FIG. 5 is an operation explanatory view for explaining the operation of a processing apparatus for performing processing for rounding and crushing perforations;

[Explanation of symbols]

 10 Carton 11a, 12a Top extension plate 11b, 12b Bottom extension plate 11c, 12c Rear extension plate 11d, 12d Front extension plate 13 Top plate 14 Rear plate 15 Bottom plate 16 Front lower plate 17 Front upper plate 17a Front flap 17b Opening zipper 17c Flap for finger hanging 18,18 ', 19,19' Single edge perforated line 18a, 18a 'Edge 20 Perforation rounding machine 21,23 Taper roller 22 Parallel roller 24,25,26 Roller support member 110 Conveying means 120 Carton Positioning guide 130 Bracket 131 Stopper bolt 140 Support member 141 Spring 150 Width guide 160 Height guide

Claims (4)

(57) [Claims] 1. A carton provided with an opening guide perforation comprising a number of cuts arranged substantially linearly along a ridge, wherein the perforations exposed outward at the ridge. Carton characterized in that the edge of the part is rounded. 2. A perforation of a carton provided with an opening guide perforation comprising a plurality of cuts arranged substantially linearly along the ridge, the perforation being exposed outward at the ridge. A method of processing a carton, characterized by rounding the edge of a part. 3. A perforation of a carton provided with an opening guide perforation comprising a plurality of cutouts arranged substantially linearly along the ridge, the perforation being exposed outward at the ridge. An apparatus for processing a carton, characterized by comprising edge rounding means for pressing an edge of a part inward into the carton to round it. 4. A carton provided with an opening guide perforation comprising a number of cuts arranged substantially linearly along the ridge, wherein the perforation is exposed outward at the ridge. A carton processing device comprising an edge rounding means for shaving off an edge of a part.