JP2537061Y2 - Carton for wrap film - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wrapping film carton for storing a wrapping film, aluminum foil and the like wound in a cylindrical shape and having a paper cutting blade for cutting the wrapping film and the like.

[0002]

2. Description of the Related Art As shown in FIG. 5, a carton for a wrap film which has been already proposed has a metal cutting blade 19 for cutting a wrap film between a bottom plate 20 and a front plate 21 of the wrap film carton. There is known a structure attached along a folding curve between them.

[0003]

[Problems to be Solved by the Invention] However, in such a conventional structure, there is a problem that a child is injured by the metal cutting blade 19 or the metal cutting blade 19 cannot be incinerated at the time of disposal. In addition, there have been various problems that the assembling work at the time of manufacturing is troublesome and the cost is increased. In view of such a problem, a carton having a paper cutting blade has been proposed (for example, Japanese Utility Model Application Laid-Open No. 56-382).
No. 3, No. 53-157036, No. 62-13830, Japanese Utility Model Publication No. 56-13218, No. 60-37295). However, in the above-mentioned conventional example, there is a problem in the position of the cutting blade in any of the configurations, the flap is bent at the time of cutting the wrap film, and there is a drawback that the shape retention of the carton is poor and it is difficult to cut. There is a disadvantage that the durability of the cutting blade is also poor.

The present invention has been made in view of the above-mentioned drawbacks, and has as its object the purpose of being able to easily and reliably cut a wrap film with good shape retention of a carton when cutting the wrap film, and to further improve the durability of the cutting blade. An object of the present invention is to provide a wrap film carton having excellent properties.

[0005]

In order to achieve the above object, the present invention relates to a wrapping film carton made of one piece of cardboard, which is provided at a free end of a front plate connected continuously to a bottom plate. Further, a folded plate is provided, and a serrated punching portion is provided on a boundary line between the front plate and the folded plate, leaving a connection portion partially, and the folded plate is folded on the front plate to form one serrated valley. And the other saw-toothed mountain portion overlaps.

[0006]

In the present invention, the folded plate is folded on the front plate to form a double structure at the cutting blade, so that the shape of the carton is improved when cutting the wrap film. The wrap film can be cut easily and reliably. In addition, since the folded plate is folded on the front plate so that one of the serrated valleys and the other of the serrated ridges overlap, the pitch of the cutting blade becomes finer, and the cutting blade is added to the cutting blade when cutting the wrap film. The force is dispersed, so that the cutting blade is less likely to bulge and the durability is improved.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the embodiments shown in the drawings.

FIG. 1 is an exploded plan view showing an embodiment of a wrap film carton according to the present invention, FIG. 2 is an enlarged plan view of a portion A in FIG. 1, FIG. 3 is an assembled perspective view of the wrap film carton, FIG. 4 is a sectional view of the wrap film carton.

As is apparent from FIG. 1, a back plate 5, a cover plate 6 and a flap 7 are successively provided below the bottom plate 1 via folding curves 2 to 4, and a lateral side slightly below the center of the flap 7 is provided. A zipper 8 for cutting is provided on one line.
Further, a front plate 10 is continuously provided above the bottom plate 1 via a folding curve 9, and a folded plate 12 is further provided above the front plate 10. On the boundary line 11 between the front plate 10 and the folded plate 12, a saw-toothed punching portion 13 constituting a cutting blade is provided. At both ends of the bottom plate 1, side plates 14, folding flaps
15 are continuously provided, and sticking pieces 16 and 17 are continuously provided at both ends of the rear plate 5 and the front plate 10, respectively.

In this embodiment, as shown in FIGS. 1 (b) and 2 (b), when the folded plate 12 is folded over the front plate 10 via the boundary line 11, a portion of the cutting blade is obtained. Has a double structure, and a serrated valley of one (for example, the front plate 10) overlaps a serrated ridge of the other (for example, the folded plate 12), which is 1/2 of the pitch of the punching blade. A cutting blade with a fine pitch can be obtained. Of course, it is desirable that the tips of the ridges of the cutting blade be aligned when folded back in this way. For this purpose, as shown in FIG. The serrated punch 13 may be formed so that the distance to the peak (or valley) is 1 / 2P, that is, the boundary 11 is exactly in the middle between the peak and the valley. In this embodiment, connecting portions 18 for connecting the front plate 10 and the folded plate 12 are provided at several places on the boundary line 11 (FIG. 2).
(See (b)), so that the folded plate 12 can be easily folded without being completely separated from the front plate 10.

Next, the assembling of the wrapping film carton constructed as described above will be described.

First, in the unfolded state shown in FIG.
The front plate 10 is turned upside down, and the rear plate 5, the cover plate 6, and the flap 7 are sequentially folded into a rectangular tube shape as shown in FIGS. The folded plate 12 is connected to the front plate 10 as described above.
Fold it over the inside surface of the box. At this time, if an adhesive (preferably a curable one) is also applied on the boundary 11 between the two, the adhesive is also slightly impregnated into the end surface of the cutting blade, and the strength of the cutting blade is improved. Also, the left and right side plates 14, 14
Is folded vertically, and the left and right sticking pieces 16, 16, 17, 17 are stuck on the inner surfaces of both side plates 14, 14, and the contents wrap film,
After storing aluminum foil etc., both left and right folding flaps
If the flaps 7 and 15 are folded inward and the flap 7 is attached to the outer surface of the front plate 10, the assembly is completed.

In use, the zipper 8 of the flap 7 is peeled off and opened. Since the cutting blade has a double structure, the wrap film can be cut easily and reliably without bending the carton when cutting the wrap film. Further, since the cutting blade has a fine pitch which is half the pitch of the punching blade, and the force applied to the cutting blade when cutting the wrap film is dispersed, the durability of the cutting blade is improved, and the cutting blade can be used without losing sharpness until the end.

[0014]

As described in detail above, according to the carton for a wrap film of the present invention, the folded plate is folded on the front plate to form a double structure at the cutting blade, so that the wrapping is achieved. Good shape retention is maintained without bending the carton even when the film is cut. As a result, there is an excellent effect that the wrap film can be cut more easily and more reliably than in the past. In addition,
By folding the folded plate on the front plate so that one serrated valley and the other serrated ridge overlap, a fine pitch of 1/2 of the punching blade can be secured, and wrapping The force applied to the cutting blade at the time of cutting the film is dispersed, so that the cutting blade is less likely to protrude. Therefore, an excellent effect that the durability of the cutting blade is improved and the cutting blade can be used without losing sharpness until the end is also exerted.

[Brief description of the drawings]

FIG. 1 is an exploded plan view showing one embodiment of a wrap film carton according to the present invention, wherein (a) shows a state before the folded plate is folded, and (b) shows a state after the folded plate is folded. Show.

FIG. 2 is an enlarged plan view of a portion A in FIG.

FIG. 3 is an assembled perspective view of the wrap film carton.

FIG. 4 is a sectional view of the carton for a wrap film.

FIG. 5 is an assembled perspective view showing an example of a conventional wrap film carton.

[Description of Signs] 1 Bottom plate 5 Back plate 6 Cover plate 7 Flap 8 Zipper 10 Front plate 11 Boundary line 12 Folding plate 13 Serrated punching part 14 Side plate 15 Folding flap 16, 17 Adhering piece 18 Connection part

Claims (1)

(57) [Scope of request for utility model registration] 1. In a carton for a wrap film formed from one piece of cardboard, a folded plate is further provided at a free end of a front plate continuously provided adjacent to a bottom plate, and a boundary line between the front plate and the folded plate is provided. The serrated punching part is provided partially leaving the connecting part, and the folded plate is folded on the front plate so that one serrated valley and the other serrated peak overlap. Characterized carton for wrap film.