JPS6134264Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a storage box for storing wrap film wound around a paper tube or the like, and pulling out and cutting small amounts at a time for use.

Synthetic resin films such as polyvinylidene chloride, polyvinyl chloride, polyethylene, and polybutadiene, which are generally called wrap films, and films such as aluminum foil, wax paper, and glassine paper are wound around paper tubes or other cylindrical cores, and cut with a cutting tool. and is stored in a paper box with a longitudinal winding outlet,
Widely used for home and commercial purposes.

Conventionally, when pulling out the required amount of long film for use, cutting tools have been used that have metal serrations (commonly known as sawtooth) or sharp blades at the part that contacts the film to be cut. It was used.

However, with these methods, the cutting edge protrudes, which can cause injury to hands and fingers.

Furthermore, conventional saw teeth are manufactured by cutting metal into serrated shapes, but in this process, the saw blade cutting tools are prone to wear, and if even a slightly worn tool is used, burrs remain on the product saw teeth, and these burrs can cause injury. I often did this. Therefore, great care was required in sharpening and maintaining the sawtooth cutting tool to avoid leaving burrs. Also, when installing the saw teeth, the amount of protrusion of the cutting edge must be accurately controlled; if the amount of protrusion is too large, it is dangerous, and if it is insufficient, it is useless.

As described above, the saw teeth require great care in manufacturing and mounting, and the reason why they are expensive is because the saw teeth themselves are dangerous as a cutting tool. By using the abrasive grain surface according to the present invention, various methods such as printing, spraying, pasting, cutting, etc. can be used, and processing is extremely simple, and it is extremely advantageous in terms of manufacturing.

The present invention uses a linear abrasive grain surface as a cutting means, and the linear abrasive grain surface is raised close to the ridgeline, and a shallow cut that does not penetrate the paper is carved on the ridgeline. This ensures the contact between the film to be cut and the abrasive grain surface during cutting, and the ridges serve as a pedestal for the film, making it possible to make a deep initial cut and guide this cut accurately. It provides a storage box.

Hereinafter, the present invention will be described in detail by way of examples with reference to the drawings.

1 is a perspective view, and FIG. 2 is a cross-sectional end view of FIG. This is a front flap that further extends from the top cover 4. Reference numeral 6 denotes a ridgeline formed by the front surface 1 and the bottom surface 2, and a linear ridge 7 is provided along the ridgeline 6 at a portion of the front side surface 1 close to the ridgeline 6. On this linear ridge 7
Abrasive grains 8 having a particle size that passed through a JIS standard sieve of 590μ and remained at 250μ were linearly applied via an adhesive. Reference numeral 9 indicates a score line, which has a depth that does not penetrate the paper, so that when the box is bent along the ridge line, it can be formed as a sharp corner without rounding, resulting in an excellent appearance. When the first cut is made on the film by the abrasive grains 8, the protuberance 7 serves as a pedestal to press the abrasive grain and the film, making it possible to make a sharp cut and also to match the cut line provided on the ridgeline. The lever cut can be precisely guided across the film. 10 is a paper tube, 11 is a wrap film, and 12 is a side surface.

FIG. 3 is a cross-sectional view of the base paper that is folded as shown in FIG. 2 to form a box as shown in FIG.
5 is pressurized with a mold in advance to provide a linear protrusion that protrudes toward the inside of the box. During this operation, in the storage box according to the present invention, a ridge 7 is made to project linearly toward the outside of the box slightly inside the ridge line 6 of the front surface 1, and at the same time, a cut line 9 is made that is shallower than the paper in the part that should become the ridge line 6. Put in. The protuberance 7 may be provided on the front surface 1 or the bottom surface 2, but must be close to the ridgeline having the score line 9.

Abrasive grains 8 are adhered onto the ridges 7 of the base paper thus formed, and the base paper with the abrasive grains is formed into a box using an ordinary box making machine, and the wrapped film is stored.

In some cases, the abrasive grains 8 may be attached to a predetermined portion and then pressurized with a mold to form the protuberances 7 and ridge lines.

Figure 4 is a cross-sectional view taken along the - line in Figure 3, and the abrasive grains 8 pass through a JIS standard sieve of 590μ, and those within the range of 250μ are the sharpness of the wrap film, the ease of application, the appearance, and the abrasive grains. It is desirable from the viewpoint of the difficulty of falling off. The abrasive grains 8 should be provided on the protuberances 7, but in some cases, the abrasive grains 8 may be widely applied in the vicinity of the protuberances 7.

The adhesive is not particularly limited as long as it can strongly adhere the abrasive grains, but it is desirable that the adhesive hardens within a short period of time due to the process. For example, α-cyanoacrylate adhesive is one of the desirable adhesives because it is strong and hardens quickly. Radiation-curable adhesives are also desirable.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, FIG. 1 is a perspective view, FIG. 2 is a cross-sectional end view of FIG. 1, FIG. 3 is a sectional view of the base paper, and FIG. 4 is a sectional view taken along the line - It is. In the drawings, 1 is the front surface, 2 is the bottom surface, 3 is the rear surface, 4 is the top cover, 5 is the front flap, 6, 13, 14, 15 are the ridge lines, 7 is the bulge, 8 is the abrasive grain, 9 is the cut line, 10 1 is a paper tube, 11 is a wrap film, and 12 is a side surface.

Claims (1)

[Scope of utility model registration request] A wrap film paper box consisting of a rectangular top cover that can be opened and closed from the rear end of an oblong box consisting of a rectangular front, bottom, and rear surface, and both square sides.
A linear ridge formed by adhering abrasive grains that stays at . A wrap film storage box that is characterized by: