JP2944418B2 - Wrap film storage box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a mainly relates generally home in the storage box of the take-layer wrap film that is widely used in food packaging, take-layer wrap film is the storage room or found in its use at the time
Or pop out, but that was as not to go back winding wrap film.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 5 (A) and 5 (B), a wrap film (hereinafter abbreviated as a wrap film) in a wound state with a front plate 1, a bottom plate 2, a rear plate 3 and a side plate 8. A) a storage chamber 20 for storing R, a cover plate 4 extending from an upper edge of the rear plate 3 in a direction covering the opening of the storage chamber 20, and a direction covering the front plate 1 from a front edge of the cover plate 4. Is a rectangular box body with a cutting tool K fixed to the end of the covering piece 5, and a required amount of film is pulled out from the stored winding wrap film R, and the fixed cutting tool is fixed. wrap film storage box used by cutting in K are known are commercially available widely. This type of box is generally made of paperboard, for example, a front board 1, a bottom board 2, a rear board 3, a cover board 4, and a cover piece 8 of a paperboard board as shown in FIG.
Is bent at substantially right angles at each fold line portion to form a quadrangular prism first, a wrapping film R is inserted into the prism from the side plate opening, and both side plates 8 are closed and bonded later. In general, as shown in FIG. 5 (A), the wrap film is generally formed in a rectangular box in which the wrap film is stored. Then, in practical use, the portion of the unsealing piece 6 fixed at the local joining portion 9 is cut off from the perforated line 10, opened as shown in FIG. 3, and a required amount of the wrap film F is pulled out from the wound layer wrap film R. It is used by cutting with a cutting tool K fixed to the tip of a box cover piece. Also, there are various types of cutting tools of this type of storage box in the overall shape drawn by the cutting edge, for example, a straight shape, a concave arc shape, and a convex arc shape in the shape of a virtual line connecting the cutting edges. There are known objects such as an object, a V-shaped protrusion, and a trapezoidal protrusion. FIG. 4 shows an example in which a metal saw blade having a straight imaginary line connecting the cutting edge is attached to the tip of the cover piece 5 having a straight tip portion,
Furthermore, the case where the side cover piece 11 extending from the cover plate 4 in the direction to cover the side plate 8 is present as a reinforcing portion of the cover piece 5 is illustrated. The box illustrated in FIG. 5 has the advantage that the box is relatively strong and has excellent film cutting performance, but on the other hand, the cover piece 5 has a width of about の of the height of the front plate 1. The cutting end is attached to the cutting tool together with the lid when the lid is opened and the next film is to be pulled out, for example. The film end is rewound toward the winding wrap film side, and the film end for pulling out is not lost.
And the lid for you and attempt to get your casually film while still in a semi-open state, the take-layer wrap film R there is a generation often say the problem of cause failure phenomena that jumped out from the storage chamber 20. As a countermeasure for this, a “smooth surface or adhesive surface = temporary fastening portion” for bringing the cut end of the film into close contact with the surface portion of the front plate covered with the cover piece is installed in advance. the central portion, but it is previously established a mechanism part of the sides plates when pressed from the outside becomes preventer jumping out at Orekon inside the paper tube wrap film in the box, etc. which like殆of < At present, it is not effectively used at the consumer stage. On the other hand , as a countermeasure against the same failure phenomenon as described above, FIG.
In addition to the box structure shown in FIG. 1, a box body provided with a "pressing plate 21 located on the back side of the lid plate 4 and extending from the upper edge of the front plate 1 toward the opening of the storage chamber 20" is also known. For example, 52
In JP-A-95736, the presence of the "lap support piece extending from the upper edge of the front plate toward the opening side of the storage chamber (same as the holding plate 21)" is useful for making the box strong and preventing the box from popping out. It specifically teaches something. Also , Shoko 62
In the publication No. -15136, if the extension length of the support piece is set in a range of 1/5 to 1/20 (20 to 5% of the width of the opening) of the short side of the side (substantially equal to the width of the opening), It specifically states that the film has both the ease of pulling out the film and the effect of preventing the film from popping out.

[0003]

However, none of the above-mentioned proposals has been put to practical use because of poor practicality. Specifically, the proposal in Japanese Utility Model Laid-Open Publication No. 52-95736 discloses that the presser plate widely covers the opening of the storage chamber because the roll-up wrap film projects from the box by the increased width of the presser plate. And an effect of preventing the film from being rewound on the holding plate. However, in the other hand, essentially to say that drawer desorption operation of the winding layer wrap film needed occasionally Te course of operation the problems it difficult, and can not control the Ri drawer resistor abnormal Takama which occurs when pulling out the film Problems encountered. A specific example of the problem of the draw-out resistance is shown in an experimental result when a width of the holding plate is set to about 30% of a width of the opening portion by using a vinylidene chloride resin film having excellent suitability for close-packing. The pull-out resistance of the film is about 3.5 times higher than that of a normal storage box even when the center of the film width is pinched and pulled straight out parallel to the holding plate surface. If the angle is deviated by about 4 degrees, the resistance is increased about 4 times, and there is a problem that it cannot be put to practical use. Also, even when the center of the same film width is pulled out, in the drawing direction in which the horizontality with respect to the holding plate surface is deviated upward, the film drawn between the back surface of the holding plate and the lifted wrap film overlaps. You will encounter the problem of being pinched and making the drawer virtually impossible.

On the other hand, Japanese Patent Publication No. 62-15136 proposes that the width of the presser plate is relatively narrow, so that the difficulty of attaching and detaching the wrap film and the rate of increase in pull-out resistance are greatly reduced. Is done. However, the drawback of this proposal is that the winding layer wrap film that is easy to attach and detach and has low withdrawal resistance has little effect of preventing the winding layer wrap film from jumping out, and conversely, the effect of preventing the winding layer wrap film from jumping out. One of the problems is that the detachment operation of the wound wrap film is difficult and the pull-out resistance is about twice as large as that of the usual one, and a harmony point between the two cannot be found.

[0005] In general, the actual usage of the wrap film storage box is related to the fact that the object of use is widely used by an unspecified number of people in various homes. The operations are also diverse. For example, it is surprising that many people have become habitual to pinch near the center of the film width and pull it out diagonally, and to pull out the box with the long end near it to perform cutting operations. Is easier to raise than usual. In extreme cases, some people pull out the film along the half-open lid with the lid half-opened and perform cutting operation. Throw it out,
There are often cases where after completing another task, the next film is pulled out of the box and used again. In such a case, there is a high probability that the wound layer wrap film jumps out of the box and the end of the film naturally rewinds toward the wound layer wrap film side. In other words, in the recent market requirements for storage boxes, the performance requirements have shifted to those that do not cause abnormalities even if they are used casually as they are, and it is necessary to add some processing operation such as bending for prevention and caution Storage boxes that require intensive operation tend to be unacceptable.

[0006] An object of the present invention is to provide a method in which a rolled wrap film is removed from a box even if the box, which has been opened without any precautionary operations, is shaken or rolled upside down with the lid open. An object of the present invention is to provide a storage box which has a high level of prevention function to prevent the film from popping out, yet can easily carry out the operation of attaching and detaching the wound layer wrap film to and from the box body, and has a low resistance to pulling out the film. In this storage box, since the wound layer wrap film is well held by the box body, the frequency of occurrence of the phenomenon that the film end rewinds into the box body can be greatly reduced. In addition, even if the film end rewinds into the box for some reason during the drawer operation, the rewinded film end stays on the wound wrap film in a double or more bent state. Prevent loss of sight.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a storage box having both prevention of pop-out, easy operation of attaching / detaching the wound wrap film, rewind preventing function, and easy draw-out of the film.

[0007]

According to the structure of the present invention as a box body, the front plate 1, the bottom plate 2, the rear plate 3, and the side plate 8 form a storage chamber 20 for storing the wound layer wrap film R, A cover plate 4 extends from the upper edge of the rear plate 3 in a direction to cover the opening of the storage chamber 20, and a cover piece 5 extends from the leading edge of the cover plate 4 to cover the front plate 1.
Extends, and a cutting tool K is fixed at the end of the cover piece 5,
Further, the storage chamber 2 is located on the back side of the lid
A rectangular box having a holding plate 21 extending to the 0 side,
In a wrap film storage box which is used by extracting a required amount of film from the stored wound wrap film R and cutting it with a fixed cutting tool K, a longitudinal central portion of the storage chamber opening of the presser plate 21 ( The width (X1) at M1) is 28% to 20% of the width of the opening of the storage chamber, and the width (X3) of the holding plate 21 at both longitudinal side portions (M3) of the opening of the storage chamber.
Is 21% to 11% of the width of the storage chamber opening, and the width (X) of the holding plate 21 at the midpoint (M2) of the above (M1) and (M3).
2) is 25% to 15% of the width of the opening, and the width X
1, X2 and X3 satisfy the following general formula (1), the leading edge of the holding plate 21 forms a trapezoidal or arc-shaped leading edge, and the back surface of the holding plate 21 and the back surface of the front plate 1 The angle formed from the edge of the front plate 1 extends from the edge of the front plate 1 toward the storage chamber 20 with an angle of 30 to 87 degrees.

X1 ≧ X2> X3 (1) That is, the feature of the present invention resides in a holding plate extending from the end edge of the front plate 1 to the storage chamber 20 side. ) The holding plate has a narrow width in the dimension range of 28% to 11% of the width of the opening of the storage chamber, and the shape of the leading edge portion is a trapezoidal shape or arc shape of a specific size having a maximum value at the central portion in the longitudinal direction. (2) The holding plate extends to the storage chamber 20 side at an angle of 30 to 87 degrees between the back surface of the holding plate and the back surface of the front plate 1; It is in the combination of 2).

The contents of the present invention will be described below with reference to the drawings. 1 (A) to 1 (E) are schematic diagrams of an embodiment of the present invention, and mainly focus on what tip ratio of the holding plate 21 of the storage box to the box opening is distributed. FIG. That is, the width dimension of the opening of the storage chamber 20 of the box is drawn by a dashed line indicated by Y1 and the same longitudinal dimension is indicated by Y2, and the shape of the holding plate 21 occupying the opening with the upper edge of the front plate 1 of the box as the bottom side. The characteristic of the shape is drawn by a solid line and is shown by the distribution of the width dimension (X1, X2, X3 = tip position) of the holding plate at a fixed point (M1, M2, M3) of the opening in the longitudinal direction. Here, the positions of the longitudinal side portions (M3) of the holding chamber opening of the holding plate 21 are located about 5 to 10 mm inside from the longitudinal sides of the opening. This is because it is desirable that the shape of the both sides of the holding plate be sharply cut off as shown in FIG. 1 for reasons to be described later. Therefore, this slanted notch is expressed as the tip of the holding plate. By not doing.

FIG. 2 is an explanatory schematic view of a sectional view showing the operation of the storage box (embodiment) of the present invention, and shows the state of the wound wrap film during the operation of drawing out the film and the traveling path of the film to be drawn out. It is shown in relation to the holding plate, and is drawn as an internal perspective view cut at the longitudinal center of the storage box in a half-open state. That is, the front plate 1, the bottom plate 2, the rear plate 3, and the side plate 8 (the side plate 8 is not shown) form a storage room 20 for storing the wound layer wrap film R, and the rear room is formed in a direction covering the opening of the storage room 20. A cover plate 4 extends from an upper edge of the plate 3, a cover piece 5 extends from a leading edge of the cover plate 4 in a direction to cover the front plate 1, and a cutting tool K is fixed to a tip of the cover piece 5. A holding plate 2 located on the back side of the lid plate 4 and extending from the upper edge of the front plate 1 to the storage chamber 20 side
1 extends toward the storage chamber 20 at a predetermined angle (45 degrees in the figure) between the back surface of the holding plate and the back surface of the front plate 1.

[0011]

A holding plate that satisfies the requirements (1) and (2) of the above configuration,
In other words, the role of the presser plate 21 provided at an inclination with a specific width dimension is to completely prevent the wound layer wrap film R from jumping out of the box while maintaining the ease of the operation of attaching and detaching the wound layer wrap film R. To prevent it. These are due to the harmony between the dimensional shape and the inclination angle of the carefully selected holding plate, that is, the harmony between the toughness of the inclined holding plate and the flexibility of the folds. Even if it is turned upside down and shaken or rolled, the wound layer wrap film R does not jump out of the box. For this reason, the phenomenon that the film rewinds toward the wound layer wrap film due to the protrusion can be completely prevented. However, the wound layer wrap film R can be easily taken out of the box body by, for example, putting a fingertip on the end of the paper tube and pulling it up, or placing the wound layer wrap film R on the upper surface of the opening 21 and pressing the same. Will fit easily.

Another role of the holding plate 21 is shown in FIG. In FIG. 2, another role of the holding plate 21 is to hold the rolled wrap film R, which is moved and lifted by the pulling-out tension of the film, at the tip end of the holding plate 21 which is tilted and contacted on the circumference thereof. In the storage room 20. At this time, the inclination angle of the presser plate prevents the presser plate itself from being deformed or turned up (from a fold), and thus plays a role to completely prevent the wound layer wrap film R from jumping out. As a result, the release position P of the film is fixed to the position near the edge of the holding plate that is obliquely contacted, and the released film travels along the surface of the holding plate 21 and is smoothly moved with a small pull-out resistance. Will be drawn to. That is, the leading edge of the holding plate 21 that is obliquely in contact with the circumferential surface of the wound layer wrap film R acts like a scraper, and the film strongly adheres to the circumferential surface of the wound layer wrap film R. And releases the film in such a manner as to scrape off the film, thereby fixing the film release position P. In this case, the release force is a composite component of the pulling tension of the film along the inclined surface of the holding plate and the gravity of the wound wrap film acting downward, forcing the film from the circumferential surface of the rotating wrap film. It is possible to prevent a failure phenomenon in which the release position P enters the back surface of the holding plate and generates an abnormal pullout resistance. Even when the film is pulled out obliquely upward of the box, the release position P hardly moves, so that the film can be stably pulled out.

FIG. 3 shows the operation of the holding plate of FIG.
Is a schematic diagram viewed from above. In FIG. 3, the holding plate 21 is indicated by a broken line, and the release position P of the film on the wound layer wrap film R is indicated by a dashed line. In FIG. 3, the film release position P is drawn on the wound layer wrap film R in a pseudo arc shape in the direction opposite to the shape of the holding plate 21. That is, the wound layer wrap is located below the rotation circumference of the wound layer wrap film R. The center of the film is early, and the film release is started slightly later on both sides. This role has the effect of reducing and stabilizing the pull-out resistance of the film and reducing the draw-out direction dependence of the pull-out resistance. That is, a degree of freedom is given to the angle in the pull-out direction. Further, even if the film rewinding phenomenon occurs in the above-described state, the film end of the wound layer wrap film is bent toward the rear plate 3 from the release position P as a starting point and is placed on the wound layer wrap film near the opening. As a result, the film end is not lost and the film end can be easily taken out again.

The significance of the numerical portion of the structure of the present invention will be described with reference to the above-described operation. First, the width dimension (X1) of the holding plate at the position of the fixed point (M1, M2, M3) in the longitudinal direction of the opening of the box body. , X2, X3 = tip position) and its relational expression (1)
[X1 ≧ X2> X3] specifies the shape and dimensions of the holding plate 21 suitable for the present invention, that is, specifies that the holding plate 21 is a narrow width holding plate that forms a trapezoidal or arc-shaped leading edge. Here, "trapezoidal or arc-shaped" refers to a pseudo-trapezoidal shape in which the sides and the hypotenuse of the upper side of the trapezoid have a very small curvature and a small angular portion, or the curvature is divided by the width dimension. it is intended to encompass the larger the擬円arc. This is because it is often useful for reducing draw-out resistance and preventing the occurrence of film wrinkles. Further, the above-described shape plays a role of drawing the film release position P when the film is inclined and disposed.

In addition to the above-mentioned role, the shape of the presser plate from the viewpoint of further enhancing the processing dimensional accuracy of the box body is such that the front end edge thereof has a length of 200 mm to 50 mm at the center of the longitudinal direction, and strictly 150 mm to 50 mm. It is desirable that the shape is such that the range of 80 mm is linear. The reason for this is that, at the stage of paperboard supply in the process of assembling paperboard into a box, the reference line for regulating the paperboard supply position is often set as the leading edge of the holding plate,
It is because having a straight portion at the longitudinal center of the leading edge is valuable in enhancing the appearance and commercial value of the completed box.

Next, the above (X1 / Y1)% is changed from 28% to 2%.
The significance of setting the dimension range to 0% is that the leading edge of the holding plate arranged at an inclination angle is required to completely prevent the wound layer wrap film R from jumping out of the box body without hindering the attaching / detaching operation of the film. The width dimension is specified. This value is selected according to the length of the box, the height of the front plate, and the inclination angle of the holding plate, but the front plate is the same as the rear plate height or the rear plate height minus 3
(X1 / Y1)% is 28 when the size is in the range of mm.
It is desirable to select from the dimensional range of% to 24%. (X2
/ Y1)% and (X3 / Y1)% are 25% to 15%, respectively.
And the significance of setting the size range of 21% to 11% is as described in the above (X1
This is for stabilizing the draw-out resistance of the film and reducing the draw-out direction dependence of the draw-out resistance in the adoption of the size of / Y1)%. That is, it plays the role of drawing the film release position P. Therefore, from a strict viewpoint, (X2 / Y1)% and (X3 / Y1)
% Is desirably selected from the dimensional ranges of 24% to 16% and 19% to 12%, respectively. In particular, it should be noted that the lower limit of the (X3 / Y1)% portion is related to the processing accuracy (= action function) of the holding plate. It is desirable that the holding plate according to the present invention be strong so that the bent portion maintains a desired inclination angle. In other words, it is meaningless in a bent portion where the inclination angle easily and largely changes due to an external force applied to the holding plate. Therefore,
The holding plate in the present invention is, for example, once 18
It is refracted to 0 degrees, the fold is subjected to a pressing process of about 20 kg, and the desired inclination angle is set using the restoring force of the fold. If there is a portion having a width dimension of less than 5 mm in the longitudinal direction of the holding plate, it becomes difficult to process the above-described fold to be bent at 180 degrees, and the bending accuracy deteriorates. This corresponds to the lower limit.

Next, the meaning of the angle (30 to 87 degrees) formed between the back surface of the holding plate and the back surface of the front plate 1 is that the angle between the leading edge of the holding plate 21 and the attaching / detaching operation of the wrapping film R is not hindered. This serves as a scraper when the film is pulled out from the wound layer wrap film R. Therefore, it is desirable that the angle be in the range of 35 to 85 degrees, and strictly, it is most preferable that the angle be maintained in the range of 40 to 80 degrees.

In the method of manufacturing a storage box according to the present invention, for example, the parts of the front plate 1, the bottom plate 2, the rear plate 3, the cover plate 4, and the cover piece 8 of the paperboard mount illustrated in FIG. First, a rectangular prism body is formed by bending at approximately right angles, a winding layer wrap film R is inserted into the prism body through an opening of the side plate, and both side plates 8 are closed and bonded later to form a rectangular box. Often the method is taken. When inserting the above-mentioned winding wrap film, the winding wrap film hits the side edge of the holding plate 21 in the prismatic body to make it difficult to insert the box. Occasionally, the edges are deformed or damaged. As a countermeasure, it is desirable that the inside of the holding plate 21 having a length of 7 to 10 mm from both sides in the longitudinal direction of the opening is cut out at an inclination of 60 to 40 degrees. The holding plate 21 cut out with this inclination,
Even if the wound wrap film hits the side edge, the role of the insertion of the wound wrap film is improved by correcting the inclination angle (position) of the holding plate by guiding the cut-out side edge. Fulfill.

The storage box according to the present invention has a
It is most effective and desirable to use the vinylidene chloride resin wrap film storage box having excellent adhesion to other articles. This type of storage box is 45 to 55 mm in width,
Those having a longitudinal dimension of 150 to 470 mm are commercially available.

[0020]

【Example】

[0021]

Embodiments 1 to 5 At the upper edge of the front plate 1 of the box shown in FIG.
A backing sheet (an example of which is shown in FIG. 3) on which a holding plate 21 having the shape shown in FIGS. 1A to 1E is arranged is bent by the manufacturing method described in the text, and the winding layer wrap made of vinylidene chloride resin. Storage boxes each containing a film [20 m roll, trade name Saran Wrap: manufactured by Asahi Kasei Co., Ltd.] were prepared for each 100 boxes. Here, the position of the longitudinal side (M3) of the holding chamber opening of the holding plate 21 is approximately 10 mm from the longitudinal side of the opening.
Inside position. In this case, the inclination angle of the holding plate 21 with respect to the back surface of the front plate was in the range of 85 to 80 degrees.

The following evaluation was performed on the obtained storage box. [Comparative Evaluation] The following items (a) to (g) were evaluated using randomly selected samples of 5 to 10 boxes each. (A) In the opened state, hold the lower part of the box, turn the box upside down (with the lid down), shake lightly, and evaluate whether the wound layer wrap film has popped out. (B) Opened In the box in the state, the detachment of the wound layer wrap film is repeated three times, and the easiness of the detachment operation and the evaluation of the presence / absence of the deformation of the holding plate are evaluated. (To make the piece face up) and evaluate whether or not the wound layer wrap film pops out. (D) Fix the lid body fully open so that the lid plate surface is 90 degrees to the bottom surface, and 50 degrees to the bottom plate surface Repeatedly pull out the film to be pulled out diagonally upward to evaluate the presence / absence of popping out of the wrapping film. (E) A series of operations of [opening-film pulling out (about 15 cm) -closing-cutting] is possible. Quickly and repeatedly 1
It performed 0 times, wound layer evaluation of the presence or absence of jumping out and the film of the unwinding of the occurrence of wrap film (f) the box was fixed horizontally, perpendicularly to the box body, when bring out horizontally film to the bottom plate Measurement and evaluation of pull-out resistance value (g) Measurement of pull-out resistance value when the above-mentioned drawer is tilted by 4 degrees from a vertical line to the box, and evaluation of occurrence of abnormal phenomenon Evaluation of storage boxes of Examples 1 to 5 Table 2 shows the results.

[0023]

[Comparative example] The shape and size of the holding plate are 9m for M1 to M3.
The same conditions as in the embodiment except that the width was set to be a constant quadrilateral with a width of m (19.6% of Y1) and the inclination angle of the holding plate was changed to 90 degrees (no inclination). 100 boxes were made. About the obtained storage box, the same evaluation as an Example was performed. Table 2 shows the results.

[0024]

[Reference example] For reference, a storage box of the same type as that currently available on the market [trade name Saran Wrap: manufactured by Asahi Kasei]
(One without 1) was also made in 100 boxes. This storage box was also evaluated in the same manner as in the above examples and comparative examples. Table 2 shows the results.

[0025]

[Table 1]

[0026]

[Table 2]

[0027]

According to the present invention having the above-described structure,
Even if the box that has been opened without any precautionary operations is shaken or rolled if the box is turned upside down with the lid open, a high level of prevention function that prevents the wrapping film from popping out of the box. An object of the present invention is to provide a storage box which can be easily attached to and detached from the box body of the wound layer wrap film, and which has a low resistance and can be pulled out of the film.
This storage box has the effect of significantly reducing the frequency of occurrence of the phenomenon that the film end rewinds into the box body because the wound layer wrap film is well held by the box body. In addition, even if the film end rewinds into the box for some reason during the drawer operation, the rewinded film end stays on the wound wrap film in a double or more bent state. It has the effect of preventing loss of sight.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of a holding plate showing an embodiment of a storage box of the present invention.

FIG. 2 is an explanatory schematic diagram of a cross-sectional perspective view showing the operation of the storage box (example) of the present invention.

FIG. 3 is a schematic view of the operation of the holding plate shown in FIG.

FIG. 4 is a schematic view showing a shape of a paperboard to be a storage box of the present invention.

FIG. 5A is a schematic view showing a conventional storage box.
(B) is a schematic diagram showing a state where a cover plate is opened in a conventional storage box.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front plate 2 Bottom plate 3 Rear plate 4 Cover plate 5 Cover piece 6 Opening piece 7 Auxiliary side plate 8 Side plate 9 Local joining part 10 Cut-out line 11 Side cover part 12 Crimping nail for fixing cutting tool 13 Auxiliary side cover part 20 Storage Chamber 21 Holding plate K Cutting tool (metal saw blade) R Film in rolled state F Film

Claims (3)

(57) [Claims] A storage room (20) for storing a wound wrap film (R) is formed by a front plate (1), a bottom plate (2), a rear plate (3), and a side plate (8), and the rear plate (3) extends in a direction covering the opening of the storage room (20). A cover plate 4 extends from an upper edge of the cover plate 4, a cover piece 5 extends in a direction covering the front plate 1 from a tip of the cover plate 4, and a cutting tool K is fixed to a tip of the cover piece 5. Is a rectangular box having a pressing plate 21 extending from the upper edge of the front plate 1 toward the storage chamber 20 at the inside of the front plate 1, and pulling out a necessary amount of the film from the stored wound wrap film R, In the wrap film storage box used by cutting with the fixed cutting tool K, the holding plate 2
1. The width (X1) of the storage chamber opening at the central longitudinal portion (M1) is 28% to 20% of the width of the storage opening, and the holding plate 21 has both longitudinal side portions (M3) of the storage chamber opening. The width (X3) at 21% to 11% of the width of the storage opening, and the width (X2) at the midpoint (M2) of the holding plate 21 at (M1) and (M3) is 25% of the width of the opening. % To 15%, and the widths X1, X2, X3 satisfy the following general formula (1);
The leading edge of the holding plate 21 forms a trapezoidal or arc-shaped leading edge, and the angle between the back surface of the holding plate 21 and the back surface of the front plate 1 is 30 to 87 degrees from the edge of the front plate 1. A storage box for a wrap film, which extends toward the storage room 20. X1 ≧ X2> X3 (1) 2. The holding plate 21 according to claim 1, wherein a portion having a length of 7 to 10 mm from both sides in a longitudinal direction of the opening is cut out with an inclination of 60 to 40 degrees. Wrap film storage box. 3. The pressing plate 21 has a front end edge that is linear in the range of 200 mm to 50 mm at the center of the longitudinal direction.
Or a storage box for the wrap film according to 2.