JPH046070A - Paper box for packing cylindrically rolled material - Google Patents

Abstract

PURPOSE:To prevent a cylindrically rolled material from jumping by forming a locking cut which is positioned to direct inward from both ends of a tongue- like cut above a fold line of an upper side of the tongue piece approximately by a thickness of paper. CONSTITUTION:A tongue side 3 directing downward which is to be pushed into a cavity 2 of a contained cylindrical roll 3 with its upper side folded inward is formed by a tongue-like cut 5 on a side face 4, and a locking out 7 which is positioned above a fold line 6 of the upper side of the tongue piece 3 approximately by a thickness of paper inward from both ends of the tongue like cut 5. Contact between an upper face of a base of the tongue piece 3 along a tongue piece end face 7a of the locking cut and a side part side end face 7b of the locking cut supports repulsive force of bending along the fold line 6, so that the tongue piece 3 pushed into the paper box is not restored to an original position with the repulsive force of the bending so as to maintain the protruding state of the tongue piece 3.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a cylindrical roll packaging paper box used for storing and packaging cylindrical rolls such as cling film or aluminum foil so that they can be pulled out one after another when used. Regarding. More specifically, the present invention relates to a paper box for packaging cylindrical rolls that has means for preventing the cylindrical rolls themselves from flying out when a required amount of cylindrical rolls is drawn out from the stored cylindrical rolls.

[Prior Art] Conventionally, as a paper box for packaging cylindrical scrolls, which has a means to prevent the cylindrical scroll itself from flying out when the required amount is pulled out from the stored cylindrical scroll, for example,
Those disclosed in Publication No. 7-24865, Publication No. 59-23700, and Japanese Utility Model Application Publication No. 51-51933 are known.

In both of these methods, a notch is formed on the side of the paper box to form a tongue, and the tongue is pushed into the cavity of the stored cylindrical scroll from both ends to secure the cylindrical scroll inside the paper box. It is something to do.

In particular, the tongue pieces shown in the two above-mentioned patent publications have a structure in which they are pushed into the paper box and are completely locked in a protruding state in order to ensure the effect of preventing the cylindrical roll from flying out.

Another paper box for packaging cylindrical rolls is one in which paper strips constituting the side surfaces of the paper box are extended inward so that both ends of the cylindrical roll can be held down (Utility Model No. 52- 101
38 (Japanese Utility Model Publication No. 38) and one that is pulled out through a thin slit during use (Japanese Utility Model Publication No. 57-42814) are known.

[Problems to be Solved by the Invention] However, among the above-mentioned conventional paper boxes for packaging cylindrical rolls, those that are completely locked with the tongue protruding into the box tend to cause the roll to break during use. There is a problem in that when the cylindrical scroll is removed from the paper box, it is difficult to find the end of the scroll and store it again in a state where it extends from the paper box.

That is, when taking out or taking out a cylindrical roll, the tongue protruding into the box becomes a nuisance and obstructs the work. At the same time, it is easy to deform the tongue or damage its locking state during this operation, and after the above operation It is easy to lose the effect of

In addition, if the cylindrical scroll is held down by an unlatched tongue piece or by an extended piece on the side, the cylindrical scroll is held down by mere folding, so the cylindrical scroll cannot be held down sufficiently. It cannot be expected to be effective in preventing the product from popping out. In particular, when the cylindrical roll is put in and taken out, the folding tendency is removed, and there is a problem in that the holding effect of the tongue pieces and the extending pieces is significantly reduced.

Furthermore, those that pull out scrolls through a thin slit,
There is a problem in that it is troublesome to pass the end of the scroll through this slit, and the resistance of this slit tends to make it difficult to pull out the scroll itself.

The present invention has been made in view of the above-mentioned problems, and it is possible to obtain the necessary effect of preventing the cylindrical roll from popping out, and also to enable the cylindrical roll to be easily put in and taken out, and to maintain the above-mentioned effect even after the cylindrical roll is put in and taken out. The problem to be solved is to create a paper box for packaging paper rolls.

[Means for Solving the Problems] To explain the means taken in the present invention to solve the above problems, in the invention of claim 1, in the hollow part 2 of the cylindrical scroll l stored. , the downward-facing ancient path 3 that is pushed in by folding the upper side inward has a tongue-like cut 5 in the side surface 4.
A locking notch 7 is formed inwardly from both ends of the ancient road-like inset 5 and is located above the folding line 6 of the upper side of the tongue piece 3 by approximately the thickness of the paper. This paper box is used to package rolls (see Figures 1 to 3).
In the invention of claim 2, the locking notch 7
is formed below the folding line 6 of the upper side of the tongue piece 3 by approximately the thickness of the paper (see FIG. 9).

[Work] The operation of the invention of claim 1 will be explained with reference to FIG.

FIG. 4 shows the state in which the tongue piece 3 is pushed into the main paper box, and the locking notch 7 is formed above the folding line 6 by approximately the thickness of the paper. The tongue end surface 7a of the tongue 3 faces the outer surface of the side surface 4, and the upper surface of the base portion of the tongue piece 3 along the tongue end surface 7a of the locking notch is in contact with the side surface 7b of the locking notch. be touched.

The contact between the upper surface of the base portion of the tongue piece 3 along the tongue side end surface 7a of the locking cut and the side end surface 7b of the locking cut supports the repulsive force of bending along the bending line 6. The projecting state of the tongue 3 is maintained by preventing the tongue 3 pushed into the paper box from returning to its original position due to the repulsive force of this bending. The repulsive force of the bending supported in the above manner serves to suppress the tendency of the cylindrical scroll 1 to fly out.

The effect of the invention of claim 2 is also substantially the same as the effect of the invention of claim 1. However, contrary to the first aspect of the invention, the locking notch 7 is formed below the folding line 6 of the upper side of the tongue piece 3 by approximately the thickness of the paper. When the tongue piece 3 is pushed into the paper box, the first
As shown in Figure 0, the tongue side end surface 7 of the locking notch
a is the side surface 4 near the side end surface 7b of the locking notch;
The difference is that it comes into contact with the inner surface.

The contact between the tongue end surface 7a of the locking notch and the inner surface of the side surface 4 near the side surface end surface 7b of the locking notch is as follows:
This function is similar to the abutment between the upper surface of the base portion of the tongue piece 3 along the tongue side end surface 7a of the locking cut and the side end surface 7b of the locking cut in the invention of claim 1. It is something. That is, it supports the repulsive force of bending along the folding line 6, and prevents the tongue 3 pushed into the main paper box from returning to its original position due to the repulsive force of this bending.
This is to maintain the protruding state.

[Embodiment] An embodiment of the invention of claim 1 will be described with reference to FIGS. 1 to 3.

As shown in FIG. 1, this paper box has a front part 9 having joining pieces 8 on both sides, and a bottom part 11 having side parts 4 on both sides having presser pieces 10 formed on the upper side after assembly. , a rear part 13 having inner side parts 12 on both sides, and a lid part 14;
It has an expanded shape in which the cover parts 15 are successively connected. Further, a cutting tool 16 is attached to the front surface portion 9 side of the bottom surface portion 11 with its tip slightly protruding toward the front surface portion 9 side.

As shown in an enlarged view in FIG. 2, a tongue-shaped notch 5 is made in the side surface 4, and a semicircular tongue 3 is formed that faces downward when the main paper box is assembled as shown in FIG. ing.

The shape of the tongue piece 3 may be, for example, square or triangular, but since it is pushed into the cavity z of the cylindrical scroll 1 shown in FIG. 3 and presses the cylindrical scroll 1, The semicircular shape shown in the figure is preferable so as not to impede the rotation of the cylindrical scroll l when the scroll is pulled out.

Moreover, since the scroll is pulled out by pulling it toward the front surface 9, the cylindrical scroll 1 tends to be pressed against the front surface 9 when being pulled out. Therefore.

It is also possible to form the tongue piece 3 a little closer to the rear surface part 13 to alleviate the rotational resistance between the cylindrical scroll 1 and the front surface part 9 when the scroll is being pulled out, and to improve the ease of pulling it out.

However, in the above case as well, it is necessary to ensure a space between the cylindrical scroll l and the rear surface part 13, so the distance a between the tongue piece 3 and the rear surface part 13 is determined by the paper tube that is the core material of the cylindrical scroll 1. If the thickness of the seal is T1, and the thickness of the film, etc. wound around it is T2, then a=T+ +T2+ (1 to 5
mm) is preferable.

The tongue-like notches 5 forming the tongue piece 3 may be a series as a whole, but as long as the tongue piece 3 can be separated from the side surface 4 and pushed in during use, it can be partially unblocked. It may have a cut portion or a perforated portion.

In addition, from both ends of the tongue-like cut 5, inwardly,
A locking notch 7 is formed. This locking notch 7 is located slightly above the bending line 6 of the upper side of the tongue 3, which is to be folded inward when the tongue 3 is pushed in. Specifically, it is located above the folding line 6 by an amount approximately equal to the thickness of the paper making up the main paper box.

The distance between the locking notch 7 and the bending line 6 is D=0.6t-, where t is the thickness of the paper that makes up the main paper box.
It is preferable to be 1 or 2t. Even if this D is too large or too small, the upper surface of the base portion of the tongue piece 3 along the tongue side end surface 7a of the locking cut and the side surface side of the locking cut Contact with the end surface 7b tends to be insufficient.

The thickness of the paper that makes up this paper box may be the same as that of paper boxes currently in use, but specifically 0.4 to 0.8
Medium intestine level is preferable.

The length X of the locking notch 7 is longer than the bending line 6
The repulsive force of bending along the cylindrical scroll 1 becomes weaker.
Although the pressing force is slightly reduced, the upper surface of the base portion of the tongue piece 3 along the tongue side end surface 7a of the locking cut described in FIG. This makes it easier to maintain the protruding state of Kodo 3. On the other hand, if it is made shorter, the above-mentioned repulsive force becomes stronger, so the force to press down the cylindrical scroll 1 becomes stronger, but it becomes a little difficult to maintain the protruding state of the ancient path 3. Therefore, the length X of the locking notch 7 is 176 times the width of the tongue piece 3 at the position where this locking notch 7 is inserted.
It is preferable to limit it to a certain extent.

The horizontal position of the locking notch 7 is 37 mm above the height of the side surface 4.
It is preferably between 8 and 1/2.

With this position, when taking out the cylindrical scroll l from the main paper box, if you turn one paper box upside down and shift the contained cylindrical scroll l, the hollow part 2 will be exposed below the side part 4. This is preferable because the cylindrical scroll 1 can be pulled out by inserting a finger into the exposed cavity, making it easier to take out the scroll.

Further, as shown in FIG. 5, it is preferable to form an auxiliary cut 7' at the tip of the locking notch 7, which connects the locking notch 7 and the bending line 6. Bending line 6 when pushing the tongue piece 3 into the main paper box
It becomes easier to bend along the

Further explaining this auxiliary cut 7', if the auxiliary cut 7' is not provided, the folding along the bending line 6 will not be possible unless the part where the auxiliary cut 7' is to be provided is torn; however, if the auxiliary cut 7' is provided, By doing so, it is possible to do this without causing irregular tearing, which tends to occur, and thus it becomes easy to fold along the folding line 6.

The auxiliary cut 7' may be formed from the tip of the locking cut 7 with a length slightly exceeding the bending line 6, or may be formed with a length slightly shorter than up to the bending line 6. However,
In order to ensure that the tongue piece 3 is bent along the bending line 6 when pushed in, it is preferable to form the tongue piece 3 with a length as equal as possible to the length from the tip of the locking notch 7 to the bending line 6.

As mentioned above, the bending line 6 on the upper side of the tongue 3, which is folded inward when the tongue 3 is pushed in, does not have to be a line processed to make it particularly easy to fold, but it may be a compression line or a half-cut line. It may also be a line that has been processed to make it easier to bend, such as a line or perforation.

On the other hand, in addition to the tongue piece 3 of the side surface portion 4 explained above.

In this paper box, a tongue 3' is also formed on the inner side surface 12 by a tongue-like cut 5'. This tongue piece 3' is
It is formed at a position that almost overlaps with the tongue piece 3 on the side part 4 side when the book paper box is assembled.

By the way, the inner surface portion 12 where this tongue piece 3' is formed
is folded into the inside of the side surface 4 when assembling the main paper box, and is adhered to the side surface 4 together with the joining piece 8 of the front surface 9.

In this paper box, the inner side part 12 is large enough to cover the inside of the side part 4, so this tongue piece 3' is necessary in order to be able to push the tongue piece 3 of the side part 4 into the paper box. It is. However, in the case where the inner surface part 12 is made large enough not to cover the tongue piece 3 of the side surface part 4 and is to be adhered to the side surface part 4, like the joint piece 8 of the front face part 9, this inner surface part Twelve tongue pieces 3' are unnecessary.

In addition, when providing the tongue piece 3', as shown in FIG. 6, the inner surface part 12 may be partially cut out and deformed within a range that does not interfere with the formation of the tongue piece 3'. You can also.

When the tongue piece 3' is pushed into the main paper box,
It is pushed in together with the tongue piece 3, and its shape and tongue-like cut 5' forming it are similar to the tongue piece 3 described above.

The illustrated tongue piece 3' is not provided with the locking notch 7 like the tongue piece 3 on the side surface 4; A similar notch may be provided. If the tongue 3' does not have a notch corresponding to the locking notch 7 of the tongue 3, as in the illustrated tongue 3', the bending line 6' of the tongue 3' Since the repulsive force against bending along the line becomes relatively large, the force that presses the cylindrical scroll 1 becomes large. Furthermore, if a notch corresponding to the locking notch 7 of the tongue piece 3 is provided, the tongue piece 3' can be locked in a protruding state, so that the tongue piece 3' can be locked in a protruding state.
This makes it easier to lock both the tongue piece 3' and the tongue piece 3' in the protruding state.

It is preferable that the fold line 6' of the tongue piece 3' be located above the fold line 6 of the tongue piece 3 by the thickness of the paper constituting the book paper box when the book paper box is assembled. If the position is set like this, when the tongue piece 3 is pushed in, this tongue piece 3
The tongue piece 3' is also pushed in so as to overlap with the upper surface of the tongue piece 3', so that the tongue piece 3 and the tongue piece 3' can be overlapped together and act as a presser for the cylindrical scroll l.

In the case of the illustrated semicircular tongue piece 3', the tongue piece 3' is preferably larger in diameter than the tongue piece 3 by twice the thickness of the paper constituting the paper box. By doing so, the tongue piece 3 can be protected by the tongue piece 3'.

In this paper box, the lid part 14 and the cover part 15 do not affect the locking effect of the tongue piece 3 in any way, so as shown in FIG. By forming the portion 17, it is also possible to form a so-called box-shaped paper box with a high-quality feel. In addition, FIG. 8 shows the unfolded state, and 18 is a connecting piece for connecting the cover part 15 to the cover side part 17.

The cylindrical roll l to be stored in this paper box is, for example, a paper tube wrapped with layers of paper and glued together with a film wrapped around it.The film may be made of polyvinylidene chloride, polyvinyl chloride, polyethylene , synthetic resin films such as polypropylene, metal foils such as aluminum foil, and papers such as glassine paper.

The paper box is usually provided with a cutting tool 16, although not essential, for cutting the rolled-out film to a required length. The cutting tool 16 is generally a metal one called a saw blade, but there are also other tools that can cut the above-mentioned films, such as a plastic saw blade or abrasive grains hardened with a hardening agent. Furthermore, the position where the cutting tool 16 is provided is not limited to the illustrated position, and may be any other position as long as it is easy to cut the pulled out films.

FIG. 9 shows the side surface 4 of the paper box according to the invention of claim 2, in which the locking notches 7 formed inward from both ends of the tongue-like notches 5 forming the tongues 3 are Bending line 6 on the upper side of the tongue piece 3 that is folded inward when pushing the tongue piece 3
Therefore, the paper box is positioned downward by the thickness of the paper that makes up the main paper box.

The paper box according to the invention according to claim 2 is similar to the paper box according to the invention according to claim 1, except that the position of the locking notch 7 is different, and as shown in the figure, the paper box according to the invention according to claim 1 is 7' can also be provided.

[Effects of the Invention] The present invention is as described above, and has the following effects.

(1) When the tongue piece 3 is pushed into the hollow part 2 of the cylindrical scroll 1,
Since the tongue piece 3 is locked in a protruding state, the cylindrical scroll 1 itself is prevented from jumping out of the paper box when pulling out one scroll.

(2) When it becomes necessary to take out the cylindrical scroll l from the paper box, it can be easily taken out by pulling the cylindrical scroll l strongly. At this time, the tongue piece 3 is bent as the cylindrical scroll 1 is taken out, but since this bending is in the pushing direction of the tongue piece 3, the tongue piece 3 itself is not damaged.

Further, when storing the cylindrical scroll 1 again, the tongue piece 3 is bent in the opposite direction, but the tongue piece 3 in the invention of claim 1 is locked on one side of the tongue of the locking notch. The locking of the tongue piece 3 in the invention of claim 2 is done by the narrow surface of the upper surface of the base portion of the tongue piece 3 along the end surface 7a and the side end face 7b of the side part of the locking cut. One side end surface 7a of the tongue
and the side surface IA near the side end surface 7b of the side surface portion of the locking notch.
4. Since this is done on a narrow surface called the inner surface, this will be canceled before it causes any damage. Therefore, after inserting the cylindrical scroll 1, if the tongue piece 3 is pushed in again, the same locking condition as before can be obtained, and the locking condition is unlikely to be impaired by taking the cylindrical scroll 1 in and out.

(3) Since the tongue piece 3 can be formed without changing the structure of a conventional paper box, it can be easily applied to existing products and is easy to use.

[Brief explanation of drawings]

Fig. 1 is a developed view of a paper box according to an embodiment of the invention as claimed in claim fs1, Fig. 2 is an enlarged view of the vicinity of the side surface thereof, Fig. 3 is a perspective view of the assembled state, and Fig. 4 shows the tongue piece. A partially cutaway perspective view showing the state of the book being pushed into the paper box, FIG. 5 is an explanatory view when an auxiliary cut is provided, FIG. 6 is a developed view showing a modified example of the inner side surface, and FIG. 7 is a lid and FIG. 8 is a perspective view of an assembled state showing a modified example of the lid part; FIG. 9 is a plan view showing a side surface of a paper box according to an embodiment of the invention as claimed in claim 2; FIG. is a partially cutaway perspective view showing a state in which the tongue piece is pushed into the main paper box. 1: Cylindrical scroll, 2: Hollow part, 3.3': Tongue piece, 4: Side part, 5.5': Tongue-shaped cut 6.6': Bending line,
7: Locking notch, 7': Auxiliary notch, 8: Joint piece, 9: Front part, 10: Holding piece, 11: Bottom part, 12: Inner side part, l3: @W1 part, 14: Lid i, 15: Cover lid part, 16: Cutting tool, 17: Lid side part, 18: Connection piece. Figure 3 Figure 4 Figure 2 Figure 5 Figure 6 Figure 16' Figure 7 Figure 8 Figure 9 Figure 10

Claims (1)

[Claims] 1) A downward tongue that is pushed into the cavity of the stored cylindrical scroll by folding the upper side inward is formed by a tongue-like cut on the side surface. A roll wrapping paper box characterized in that locking notches are formed inwardly from both ends of the side notches and located above the folding line of the upper side of the tongue by approximately the thickness of the paper. 2) A downward tongue that is pushed into the cavity of the stored cylindrical scroll by folding the upper side inward is formed by a tongue-like notch on the side surface, and from both ends of this tongue-like notch, A paper box for packaging rolls, characterized in that a locking notch is formed facing inward and located below the folding line of the upper side of the tongue by approximately the thickness of the paper.