JP3083913B2 - Cutter, carton with cutter and manufacturing method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rolled box-shaped roll having a bottom and a long roll, such as a wrap film or an aluminum foil, which is cut out as required. Regarding the improvement of the cutter attached to the roll outlet of the carton and its manufacturing method, the cutter for roll cutting is made of a material that is as sharp as a metal blade, yet has high safety, and is easy to dispose of And in particular, to prevent wavy deformation in the longitudinal direction due to moisture absorption.

[0002]

2. Description of the Related Art Various types of cutters for cutting rolls used in a carton for storing rolls have been developed so far, and metallic ones such as tinplate are often used. . Recently, a cutting blade made of synthetic resin such as plastic has been used as a cutting blade of a roll in place of the above-mentioned metal material (see Japanese Utility Model Application, First Publication No.
Japanese Patent Application Laid-Open No. 3-149834), a method using paper containing abrasive grains (a method disclosed in Japanese Patent Application Laid-Open No. 58-64940), or a curing method in which a synthetic resin is impregnated and cured. A device using a paper blade (disclosed in Japanese Utility Model Laid-Open No. 51-150938) and the like are known.

[0003]

However, metal products are liable to be injured in handling and are always dangerous, and it is necessary to remove the blade from the carton to discard them. There are problems such as not only a great deal of difficulty in processing but also a tendency to hurt the hands.

[0004] In the case of using synthetic resin, not only must it be separated at the time of disposal, but also toxic gas is generated, especially when vinyl chloride is incinerated. Further, when the paper containing abrasive grains is used, the abrasive grains easily fall off during use, and there is a hygienic problem when used for foods. Further, when a resin-cured paper blade is used, although it can be used for cutting aluminum foil, it is difficult to sharpen a wrap film, and the type of roll to be stored is limited.

[0005] Therefore, recently, a paper cutter excellent in both the above-mentioned disposal treatment and safety has been noticed. In particular, a hard fiber sheet obtained by subjecting a cellulosic fiber to zinc chloride treatment has high strength despite being a paper-based material, and thus can be said to be suitable as a cutter for a roll storage carton. However, even in this case, when it is used as it is as a cutter for a roll storage carton, the following problem occurs.

That is, when a cutter using a hard fiber sheet is attached to the outlet of a roll carton, when the humidity changes, the cutter can be moved in a relatively short time due to a difference in expansion and contraction ratio between the cardboard and the hard fiber. Tend to bend in a wave direction along its length,
As a result, not only is the product inferior in merchantability, but also the cutting performance of the drawn sheet is deteriorated, and the cutting line at the cutting end is irregular, which is not convenient. This is because even in a hard fiber sheet obtained by treating cellulosic fibers with zinc chloride, the base paper is inevitably in the papermaking stage, as the fibers are easily aligned along the papermaking direction, just like general paper materials. The paper grain is formed in the length direction of the paper, and is generally cut in a direction perpendicular to the paper length direction (a direction crossing the paper grain) to form an elongated cutter. This is because the above-mentioned hard fiber sheet has a high degree of expansion and contraction in the cross grain direction (the direction perpendicular to the grain) among the paper.

[0007]

SUMMARY OF THE INVENTION Accordingly, the present invention solves the above-mentioned various problems in the prior art and uses a hard fiber sheet excellent in both disposal property and safety as a raw material. It is designed to prevent the deformation of the cutter due to moisture absorption at a certain place.Specifically, a cutter that is attached to a rolled carton with a bottomed box shape by attaching the blade edge to the outside of the carton opening is The present invention relates to a cutter for a carton for roll storage, wherein the cutter is made of a hard fiber sheet whose paper is treated with zinc chloride, and has a paper grain structure in which the length direction of the cutter matches the fiber direction of the hard fiber sheet.

In the present invention, the length of the cutter corresponding to the roll width may be set at the opening edge, the side edge of the bottom plate, or the tip of the lid in the bottomed box-shaped roll storage carton. In addition, the present invention relates to a carton with a cutter having a cutting edge protruding outward.

Further, the present invention relates to a carton with a cutter which is attached to a rolled carton having a bottomed box shape with a blade edge of the cutter protruding outside the opening of the carton, wherein the cutter treats paper with zinc chloride. The raw material of the hard fiber sheet is cut so that the length direction of the cutter matches the fiber direction of the hard fiber sheet to form a paper grain structure, and this is cut with an adhesive to the opening edge of the carton and the side of the bottom plate. The present invention also relates to a method of manufacturing a carton with a cutter, which is integrally bonded to an edge or a tip of a lid plate.

[0010]

An elongated cutter having a length corresponding to the entire width of the roll storage carton is produced along the fiber direction of the cellulosic hard fiber sheet, and this is cut into a rolled carton having a bottomed box shape. At the edge of the roll withdrawal, the tooth tip is stuck outward with an adhesive or the like. Since the length direction of the cutter matches the fiber direction of the sheet, there is almost no expansion or contraction due to moisture absorption,
Therefore, the deformation is small.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The specific contents of the present invention will be described below with reference to the illustrated embodiment. Reference numeral 1 denotes a length direction (paper grain direction).
Represents a long hard fiber sheet that is rolled into a roll. The hard fiber sheet 1 is an organic industrial material obtained by laminating and integrating a raw material paper made of purified organic natural fibers into a certain layer thickness by using a swelling and swelling reaction of zinc chloride. Due to the agglomeration action, the fiber structure has a high density, is the most excellent mechanical strength as a natural fibrous material, and is also excellent in wear resistance and oil resistance.

In FIG. 1, the hard fiber sheet 1 has a paper grain in which fibers are oriented in the length direction (X direction), and has a significantly smaller expansion and contraction ratio due to moisture absorption than the width direction (Y direction). Therefore, as shown in FIG. 2, a pair of upper and lower die cut rolls 2 in which linear shear blades and meandering shear blades are alternately formed at regular intervals in the width direction.
a, a cut tooth P with a sharp tip on one side via 2b
, The relatively narrow cutter material 1a, 1
b, 1c, 1d, 1e, and 1f can be continuously formed.

Each of the cutter members 1a (1b to 1f) is cut at a length corresponding to the width of the roll, and the opening edge portion 4 and the side of the bottom plate 6 in the rolled carton 3 having a bottomed long box shape. The cutting edge P is attached to the edge or the tip of the lid plate 5 along the length direction of the carton 3 with an adhesive or the like with the cutting edge P protruding outward (see FIG. 3).

Further, as shown in FIG. 4, the position at which the cutter 1 is attached to the carton is appropriately selected depending on the type of rolls to be stored. Further, at the time of use, after a necessary amount of sheet of aluminum or the like is fed out from the internal roll R, a desired cut portion is pressed against the blade P of the cutter 1 to be easily cut.

[0015]

As described above, according to the present invention, a hard fiber sheet obtained by treating paper with zinc chloride is provided with a cutter which is mounted on a rolled carton having a bottomed box shape with its blade edge protruding outside the opening of the carton. In addition, the cutter has a paper grain structure in which the length direction of the cutter matches the fiber direction of the hard fiber sheet, and the blade edge of the cutter protrudes out of the opening of the carton into a long box-shaped roll storage carton with a bottom. In a carton with a cutter which is attached by mounting, the cutter has a paper grain structure in which the length direction of the hard fiber sheet in which the paper is treated with zinc chloride is matched with the fiber direction of the hard fiber sheet. Cut it and glue it to the opening edge of the carton, the side edge of the bottom plate, or the tip of the lid plate with an adhesive. As a result, the cutter is inexpensive and has excellent shape retention, the cutter hardly bends in a wavy shape in the length direction, and furthermore, there is no need to separate it at the time of disposal. There are various beneficial effects such as high safety without danger in storage and transportation.

[Brief description of the drawings]

FIG. 1 is an enlarged perspective view of a main part with a part omitted, showing a case where a cutter material is chamfered from a hard fiber sheet according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a case where a cutter material is chamfered from a hard fiber sheet, which is one embodiment of the present invention.

FIG. 3 is an overall perspective view of a carton with a cutter in which a roll is housed inside and a cutter is stuck to an opening edge of the roll housing carton.

FIG. 4 is a cross-sectional view of a roll storage carton illustrating a mounting position of a cutter.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hard fiber sheet 1a Cutter material 1b Cutter material 1c Cutter material 1d Cutter material 1e Cutter material 1f Cutter material 2a Die cut roll 2b Die cut roll 3 Carton 4 Opening edge 5 Cover plate 6 Bottom plate P Blade R roll

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-1-294429 (JP, A) JP-A-2-99688 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B65D 5/72 B31B 1/90 301 B65D 25/52 B65D 83/08

Claims (3)

(57) [Claims] 1. A cutter which is attached to a rolled carton having a bottomed long box shape with its cutting edge protruding outside the opening of the carton, comprising a hard fiber sheet whose paper is treated with zinc chloride. A roll storage carton cutter having a paper grain structure in which a length direction matches a fiber direction of a hard fiber sheet. 2. The cutter according to claim 1, wherein a length corresponding to a roll width is provided at an opening edge, a side edge of a bottom plate, or a front end of a lid in a bottomed box-shaped roll storage carton. A carton with a cutter, the cutting edge of which is mounted so as to protrude outside the opening of the carton. 3. A carton with a cutter which is attached to a rolled carton having a bottomed box shape so that the blade edge of the cutter projects outside the opening of the carton, wherein the cutter is a hard fiber obtained by treating paper with zinc chloride. The raw sheet of the sheet is cut so that the length direction of the cutter matches the fiber direction of the hard fiber sheet so as to have a grain structure, and this is cut with an adhesive to the opening edge of the carton, the side edge of the bottom plate, Alternatively, a method of manufacturing a carton with a cutter that is integrally adhered to the tip of a lid plate.