JPH0526821U - Carton for rap film - Google Patents

Abstract

(57) [Summary] [Object] To provide a carton for a wrap film, which has good shape retention of the carton when the wrap film is cut, can easily and surely cut the wrap film, and has excellent durability of a cutting blade. [Structure] A back plate 5, a lid plate 6 and a flap 7 are sequentially arranged below the bottom plate 1, and a front plate 10 and a folding plate 12 are sequentially arranged above the bottom plate 1. The front plate 10 and the folding plate 12
A sawtooth-shaped punched portion 13 is provided on a boundary line 11 between the and the sawtooth-shaped valley portion and the other sawtooth-shaped mountain portion by folding the folding plate 12 on the front plate 10. It is configured so that the parts overlap.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a carton for a wrap film which accommodates a wrap film, an aluminum foil and the like wound in a cylindrical shape and has a paper cutting blade for cutting the wrap film and the like.

[0002]

[Prior Art]

 As shown in FIG. 5, a wrapping film carton that has been proposed in the past has a metal cutting blade 19 for cutting the wrapping film and a folding curve between a bottom plate 20 and a front plate 21 of the wrapping film carton. It is known that the structure is attached along.

[0003]

[Problems to be solved by the device]

 However, in such a conventional structure, there are problems that a child is injured by the metal cutting blade 19 and that the metal cutting blade 19 cannot be incinerated at the time of disposal. There were various problems that the work was troublesome and the cost was high. Therefore, in view of such a problem, a carton having a paper cutting blade has been proposed (for example, Japanese Utility Model Publication Nos. 56-3823, 53-157036, 62-13830 and 62-13830). 56-13218 and 60-37295). However, in any of the above-described conventional examples, there is a problem in the position of the cutting blade in any of the configurations, and the flap bends when the wrap film is cut, and the carton has poor shape retention and is difficult to cut. Furthermore, there is a drawback that the durability of the cutting blade is poor.

The present invention has been made in view of the above-mentioned conventional drawbacks, and an object thereof is to have good shape retention of a carton at the time of cutting a wrap film, to easily and surely cut a wrap film, and durability of a cutting blade. It is to provide a carton for wrap film having excellent properties.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a carton for a wrap film formed of a single cardboard, further comprising a folding plate at the free end of a front plate connected adjacent to the bottom plate and the front plate. A sawtooth-shaped punched-out portion is provided on the boundary line between the face plate and the folded plate, leaving a partial connection, and the folded plate is folded over the front plate to form one sawtooth-shaped valley portion and the other sawtooth-shaped mountain. It is configured to overlap with the parts.

[0006]

[Action]

 In this invention, since the folding plate is folded over the front plate and the cutting blade has a double structure, the shape of the carton is improved when the wrap film is cut, and the wrap film is improved. Can be cut easily and surely. Also, the folding plate is folded over the front plate so that the sawtooth valleys on one side and the sawtooth crests on the other side overlap, so the pitch of the cutting blade becomes finer, and it acts on the cutting blade when cutting the wrap film. The force is dispersed and the cutting blade is less likely to sag, improving durability.

[0007]

【Example】

 Hereinafter, the details of the present invention will be described with reference to the embodiments shown in the drawings.

FIG. 1 is a developed 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 of FIG. 1, and FIG. 3 is an assembled perspective view of the wrap film carton. FIG. 4 is a sectional view of the carton for the same wrap film.

As is apparent from FIG. 1, a back plate 5, a cover plate 6 and a flap 7 are sequentially connected to the lower side of the bottom plate 1 through 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 the line. A front plate 10 is connected to the upper side of the bottom plate 1 via a bending line 9, and a folding plate 12 is further connected to the upper side of the front plate 10. On the boundary line 11 between the front plate 10 and the folding plate 12, a saw-tooth-shaped punching portion 13 that constitutes a cutting blade is provided. A side plate 14 and a folding flap 15 are connected to both ends of the bottom plate 1, and adhesive pieces 16 and 17 are connected to both ends of the back plate 5 and the front plate 10, respectively.

In this embodiment, as shown in FIGS. 1B and 2B, when the folding plate 12 is folded over the front plate 10 through the boundary line 11, the cutting blade portion Has a double structure, and one (for example, the front plate 10) has a saw-toothed valley portion and the other (for example, the folded plate 12) has a saw-toothed mountain portion, which is 1 / third of the pitch of the punching blade. A cutting blade with a fine pitch of 2 is obtained. Of course, it is desirable that the tips of the crests of the cutting blade be aligned when folded back in this way. For that purpose, as shown in FIG. 2 (a), when the distance between the crests and the valleys is P, the boundary line 11 The sawtooth punched portion 13 may be formed so that the distance to the peak (or valley) is 1/2 P, that is, the boundary line 11 is located exactly in the middle of the peak and the valley. In this embodiment, connecting portions 18 for connecting the front plate 10 and the folding plate 12 are provided at several positions on the boundary line 11 (see FIG. 2 (b)) so that the folding plate 12 is more completely than the front plate 10. Is designed to be easily folded without separation.

Next, the assembling of the wrap film carton configured as described above will be described.

First, in the unfolded state shown in FIG. 1, the bottom plate 1 is turned down and the front plate 10 is folded up, and the back plate 5, the lid plate 6 and the flap 7 are sequentially formed into a rectangular tube shape as shown in FIGS. 3 and 4. Bend. The folding plate 12 is folded and stuck on the inner surface of the front plate 10 as described above. At this time, if an adhesive (preferably a curable one) is applied also on the boundary line 11 between the two, the adhesive is slightly impregnated on the end face of the cutting blade, and the strength of the cutting blade is improved. The left and right side plates 14 and 14 are vertically folded, and the left and right attaching pieces 16, 16, 17 and 17 are attached to the inner surfaces of the side plates 14 and 14 to wrap the contents, aluminum foil, etc. After storing, the left and right folding flaps 15 and 15 are folded inward, and the flap 7 is attached to the outer surface of the front plate 10 to complete the assembly.

In use, the zipper 8 of the flap 7 is peeled off and opened. Since the cutting blade has a double structure, the carton does not bend when the wrap film is cut, and the wrap film can be cut easily and reliably. Also, the cutting blade has a fine pitch of 1/2 that of the punching blade, and the force applied to the cutting blade when the wrap film is cut is dispersed, so the durability of the cutting blade is improved and it can be used without damaging the sharpness to the end.

[0014]

[Effect of the device]

 As described in detail above, according to the wrap film carton of the present invention, the folding plate is folded on the front plate and the cutting blade portion has a double structure, so that the carton can be cut even when the wrap film is cut. Good shape retention is maintained without sagging. This has the excellent effect that the wrap film can be cut more easily and surely than in the conventional case. Furthermore, by folding back the folding plate on the front plate so that one sawtooth valley part and the other sawtooth crest part overlap, a fine pitch of 1/2 of the punching blade can be achieved. It can be secured, and the force applied to the cutting blade at the time of cutting the wrap film is dispersed, and the cutting blade does not easily sag. Therefore, there is an excellent effect that the durability of the cutting blade is improved and can be used to the end without impairing the sharpness.

[Brief description of drawings]

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

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

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

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

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

[Explanation of symbols]

 1 Bottom plate 5 Back plate 6 Lid 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 Adhesive piece 18 Connecting part

Claims (1)

[Scope of utility model registration request] 1. A carton for a wrap film formed from one cardboard, further comprising a folding plate at a free end of a front plate continuously provided adjacent to the bottom plate, and on a boundary line between the front plate and the folding plate. The sawtooth-shaped punched-out portion was partially provided with the connecting portion left, and the folding plate was folded on the front plate so that one sawtooth-shaped valley portion and the other sawtooth-shaped mountain portion overlap each other. Characteristic wrap film carton.