JP6636811B2 - Film roll storage device - Google Patents

Description

  The present invention particularly relates to a film roll in which a film roll formed by winding a wrap film for food packaging, aluminum foil, a cooking sheet or the like (hereinafter referred to as “wrap film”) is housed in a film roll storage box. It relates to a storage device.

  Usually, a wrap film is wound around a paper core to form a film roll, and the film roll is stored in a paper rectangular film roll storage box. This film roll storage box usually has a storage portion that has an upper surface opened to store a film roll, and a lid portion that opens and closes the upper surface opening. When using the film roll, the user wraps the film roll in the storage portion. The film is pulled out, cut to the desired length and used.

  By the way, when the film roll storage device is manufactured, the film roll is stored in the film roll storage box, and the film roll storage box is sealed. For this reason, for example, when a consumer purchases a film roll storage device and uses it for the first time, it is necessary to open the film roll storage box, find the film tip of the film roll, peel off the film, and pull it. 2. Description of the Related Art Conventionally, in order to make it easy to find and pull a film tip portion of a film roll, an attachment band is attached to the film tip portion of the film roll (see Patent Document 1). Further, for the purpose of suppressing the rotation of the film roll due to vibration during transportation and making it easier to find the adhesive band, it is also practiced to provide a groove or embossed surface on the inner surface of the film roll storage box and hook the adhesive band (Patent Document 1). 2).

JP 2008-94458 A JP 2015-3743 A

  However, in the film roll storage device disclosed in Patent Document 1, the film roll moves and rotates in the film roll storage box due to the vibration generated by the transfer until the first use after manufacturing, and the front end of the box is the rear plate of the box. It is possible to move to the side or the bottom plate side. In such a case, when the film roll storage box is opened for the first time, the position of the adhesive band of the film roll is difficult to understand, and it is necessary to rotate the film roll so that the adhesive band is turned up and then pull out the wrap film, which is inconvenient. Further, the film roll storage device disclosed in Patent Literature 2 requires special processing on the inner surface of the film roll storage box in order to hook the affixed band, which is not preferable in terms of maintaining the strength of the box and productivity. In addition, since it is difficult to form irregularities having a depth greater than the thickness of the box, the adhesive band is hardly caught and the effect of suppressing the rotation of the film roll is insufficient.

  The present application has been made in view of such a point, and it is possible to effectively suppress the rotation of the film roll in the film roll storage box without performing special processing, and to use the film roll at the start of use. Its purpose is to improve.

The present inventor has conducted extensive studies and, as a result, provided a film roll with a rotation suppression member that suppresses rotation by being caught in a gap between the upper end of the front plate and the top plate on the inner surface of the film roll storage box. The inventors have found that the above-mentioned problems can be solved, and have completed the present invention. That is, aspects of the present invention include the following.
(1) A film roll storage device in which a film roll is stored in a film roll storage box, wherein the film roll is caught by a gap between an upper end portion of a front plate and a top plate on an inner surface of the film roll storage box. A film roll storage device provided with a rotation suppressing member for suppressing rotation of the film roll.
(2) The film roll storage device according to (1), wherein the rotation suppressing member has a fixed portion fixed to the surface of the film roll and a free portion separated from the surface of the film roll.
(3) The film roll storage device according to (2), wherein the loop portion has a loop stiffness of 0.2 N or more.
(4) The length of the release portion in the direction protruding from the film roll surface is such that the release portion is hooked on the inner surface of the film roll storage box when the rising angle of the release portion from the film roll surface is 90 ° or less. The film roll storage device according to (2) or (3), which is a length.
(5) The rotation suppression member according to any one of (2) to (4), wherein one surface of the rotation suppressing member is an adhesive surface, and the free portion is formed by folding the adhesive surface inward. Film roll storage device.
(6) The fixing portion of the rotation suppressing member is fixed to the winding end of the film of the film roll, and the free portion of the rotation suppressing member is a knob portion that is picked up when the film is first drawn out. The film roll storage device according to any one of (1) to (5).
(7) The film roll storage device according to any one of (1) to (6), wherein both ends of a film leading end of the film roll are inclined toward a film rewinding direction.
(8) The film roll storage device according to any one of (2) to (6), wherein the free portion is provided with a slip prevention portion having a convex portion or a concave portion in a thickness direction.
(9) The portion of the detached portion other than the anti-slip portion is formed by folding a tape that forms an adhesive surface on one surface and bonding the adhesive surfaces together, and the anti-slip portion connects the adhesive surfaces to each other. The film roll storage device according to (8), which is formed without being bonded.
(10) The film roll storage device according to (8) or (9), wherein the anti-slip portion is formed at a tip of the separation portion.
(11) The film roll storage device according to any one of (8) to (10), wherein the anti-slip portion is formed on both surfaces of the separation portion.
(12) The free portion is caught in a gap between the upper end of the front plate and the top plate on the inner surface of the film roll storage box, or the frictional force between the inner surface of the film roll storage box and the film roll storage box increases. The film roll storage device according to any one of (2) to (6), further including a slip prevention portion that suppresses rotation of the roll.

  ADVANTAGE OF THE INVENTION According to this invention, rotation of the film roll in a film roll storage box can be suppressed effectively, without performing special processing, and the usability at the time of starting use of a film roll can be improved.

It is a perspective view showing the outline of the film roll storage device of the present invention. It is a perspective view which shows a film roll and a film roll storage box. It is a development view of a film roll storage box. It is a perspective view of a film roll storage device in the state where the lid of the film roll storage box was closed. It is sectional drawing of a film roll storage device. It is a front view of a front board. It is a figure which shows the section of the conventional film roll storage device which provided the crevice in the front board for reference. It is a figure showing as a reference the section of the conventional film roll storage device which provided the crevice in the top plate. It is sectional drawing which shows the modification of a slip prevention part.

  The present invention will be specifically described below. The following embodiments are examples for describing the present invention, and the present invention is not limited to only the embodiments. The same elements are denoted by the same reference numerals, and duplicate description will be omitted. In addition, in the drawings, positional relationships such as up, down, left, and right are based on the positional relationships shown in the drawings unless otherwise specified. Furthermore, the dimensional ratios in the drawings are not limited to the illustrated ratios.

  FIG. 1 is a perspective view showing a film roll storage device 3 in a state where a film roll 1 is stored in a film roll storage box 2. FIG. 2 is a perspective view showing the film roll 1 and the film roll storage box 2. FIG. 3 is a development view of the front side of the film roll storage box 2. FIG. 4 is a perspective view showing the film roll storage device 3 before use with the lid of the film roll storage box 2 sealed.

  The film roll storage device 3 has the film roll 1 shown in FIG.

  As shown in FIG. 2, the film roll 1 is configured by winding a transparent wrap film 10 around a cylindrical core 11, for example. A small piece 20 as a rotation suppressing member is attached to the film roll 1 before use (before the wrap film 10 is drawn out for the first time after production). The small piece 20 is attached, for example, to the tip of the wrap film 10 at the center of the surface of the film roll 1.

  The small piece 20 is, for example, a rectangular plate-shaped member made of resin or paper, and has a fixing portion 20 a fixed to the surface of the film roll 1 as shown in FIGS. 1, 2 and 5, and a surface of the film roll 1. Has a free part 20b remote from the main body. The small piece 20 has, for example, an adhesive surface on one side, the fixing portion 20a is adhered to the tip of the wrap film 10 of the film roll 1, and the release portion 20b is formed by folding the adhesive surface inward. Therefore, the loose part 20b is thicker than the fixing part 20a. This configuration is preferable because the rigidity of the loose portion 20b is remarkably improved, and the conflicting properties of the improvement of the rigidity of the loose portion 20b and the ease of fixing the fixing portion 20a to the roll can be achieved at the same time.

  The release part 20b has sufficient rigidity and length. For example, the release portion 20b has a loop stiffness of 0.2N or more, preferably 0.3N or more, more preferably 0.4N or more. Thereby, when the free portion 20b is caught on the inner surface of the film roll storage box 2, the rotation of the film roll 1 can be suppressed by its rigidity. In addition, when the anti-slipping portion 201 is provided at, for example, the distal end of the release portion 20b, the rotation of the film roll 1 is suppressed by its rigidity when the anti-slipping portion 201 is caught on the inner surface of the film roll storage box 2. Further, the free portion 20b has a length in which the free portion 20b is hooked on the inner surface of the film roll storage box 2 when the rising angle of the free portion 20b from the film roll surface is 90 ° or less in the direction protruding from the surface of the film roll 1. Have. The release portion 20b is preferably such a length that the release portion 20b is hooked on the inner surface of the film roll storage box 2 when the rising angle is 60 ° or less, and more preferably the release portion when the rising angle is 0 ° to 20 °. Reference numeral 20b denotes a length that hooks on the inner surface of the film roll storage box 2, and most preferably, a length at which the release portion 20b hooks on the inner surface of the film roll storage box 2 when the rising angle is 10 °. Thus, the release portion 20b is reliably brought into contact with the inner surface of the film roll storage box 2 and can be caught to suppress the rotation of the film roll 1. The loop stiffness is measured with a loop stiffness tester manufactured by Toyo Seiki Seisakusho under the conditions of 23 ° C. and 50% RH, a loop length of 50 mm, a pressing speed of 5 mm / sec, and a pressing amount of 10 mm.

  The release portion 20b will be further described. The portion of the free portion 20b except for the anti-slip portion 201 is formed by folding the tape having the adhesive surface formed on one surface and bonding the adhesive surfaces together, and the anti-slip portion 201 does not bond the adhesive surfaces of the tape to each other. Is formed. In the example shown in FIG. 5, an anti-slip portion 201 formed without bonding the adhesive surfaces to each other is provided at the tip of the release portion 20b. (In the vertical direction). In other words, the slip prevention part 201 shown in FIG. 5 has a convex shape with respect to the front surface or the back surface of the separation part 20b.

  In this manner, by forming the anti-slip portion 201 without bonding the adhesive surfaces together, the visibility of the anti-slip portion 201 can be improved by its appearance, and the work of picking out the anti-slip portion 201 with a user's fingertip and pulling it out. Can be facilitated. In addition, there is an advantage that the anti-slip portion 201 is easily lifted from the surface of the film roll, so that even a user who is visually impaired can accurately pinch the free portion. Also, there is an advantage that the anti-slip portion 201 can be processed with a general-purpose tape. Further, as shown in FIG. 5, by forming the anti-slip portion 201 at the distal end of the release portion 20b, the anti-slip portion 201 can be particularly easily picked up, and the operation of pulling out with a fingertip can be facilitated.

  A modification of the above-described anti-slip portion 201 will be described. FIG. 9 is a diagram for explaining a modification of the anti-slip portion 201. In FIG. 9, illustration of a film roll storage box 2 for storing the film roll 1 and the like is omitted for convenience of description.

  As the anti-slip portion 201, various shapes can be selected as long as the anti-slip portion 201 has a shape that is convex with respect to the surface or the back surface of the loose portion 20b, or has a shape that is concave with respect to the surface or the back surface of the loose portion 20b. For example, as shown in FIG. 9 (A), the protrusion 201a provided at the tip of the release portion 20b and the plurality of protrusions 201b having a mountain-like cross section on the upper surface on the surface in the middle of the release portion 20b prevent slippage. The unit 201 may be configured. Further, as shown in FIG. 9 (B), the anti-slip portion 201 may be constituted by a plurality of convex portions 201b having a mountain shape in cross section on both surfaces in the middle of the free portion 20b. Further, as shown in FIG. 9C, a plurality of convex portions 201c having a mountain shape in cross section are formed on the surface of the middle portion of the separation portion 20b, and a plurality of convex portions 201c having a mountain shape in cross section are formed on the back surface of the middle portion of the separation portion 20b. The protrusions 201c formed on the front surface or the back surface may be shifted to the front-rear direction (the left-right direction in FIG. 9) to form the slip prevention portions 201. Further, as shown in FIG. 9D, the anti-slip portion 201 may be formed on the surface of the free portion 20b by a convex portion 201d which is convexly curved upward. Further, as shown in FIG. 9E, the anti-slipping portion 201 may be constituted by a plurality of convex portions 201e which are convexly curved with respect to the front surface or the back surface of the separation portion 20b. Further, as shown in FIG. 9 (F), a non-slip portion 201 having a plurality of concave portions 201f processed into a concave shape on the front surface or the rear surface of the free portion 20b may be used. As shown in FIG. 9 (G), the anti-slip portion 201 may be obtained by embossing 201 g on the front surface or the back surface of the free portion 20 b. Further, the anti-slip portion 201 may be formed by applying an anti-slip varnish in a stripe shape, a lattice shape, a polka dot shape, or the like, or by applying a foaming ink or a paint containing particles on the surface or back surface of the free portion 20b.

  In the modified example of the anti-slip portion 201 described above, for example, FIG. 9B shows an example in which four convex portions 201b are formed on both surfaces of the separation portion 20b, but the above-described convex portions 201a to 201e, The number, shape, and the like of the concave portions 201f are not limited to the example illustrated in FIG. In other words, as long as the anti-slipping portion 201 has a function of suppressing slipping with the fingertip when the part of the release portion 20b is picked with the fingertip, the shape and number thereof can be appropriately selected. It is.

  The fixing portion 20a of the small piece 20 has a length of about 10 mm to 150 mm. The length may be appropriately selected in consideration of the peeling force of the fixing portion 20a from the roll so that the fixing portion 20a does not fall off the film roll during production and transportation, and is easily peeled off from the film when the film is used. The entire small piece 20 has a length of 以上 or more, preferably １ ／ or more of the outer circumference of the film roll 1.

  As shown in FIGS. 1 to 4, the film roll storage box 2 has a rectangular parallelepiped shape as a whole, and has a lid portion 30 and a storage portion 31. The cover 30 has, for example, a cover piece 40, a top plate 41, and a side cover piece 42. The storage section 31 has a front plate 50, a bottom plate 51, a rear plate 52, a side plate 53, a flap 54, and the like.

  The storage portion 31 is formed in a rectangular parallelepiped shape having an upper surface opening 31a, and can store the film roll 1 from the upper surface. The front plate 50 is a portion arranged on the side from which the wrap film is drawn out, that is, on the front side, and has, for example, an elongated substantially rectangular shape as shown in FIG. The upper end portion 60 of the front plate 50 functions as a hook portion of the small piece 20 or a member constituting the hook portion. That is, when the lid 30 is closed as shown in FIG. 5, a gap is formed between the front plate upper end portion 60 and the top plate 41, and the tip of the free portion 20b of the small piece 20 is caught here.

  The top plate 41 of the lid 30 extends forward from the upper edge of the rear plate 52 and covers the upper surface opening 31 a of the storage unit 31. The cover piece 40 extends from the front edge of the top plate 41 toward the front plate 50 and covers the front surface of the front plate 50. A saw blade 70 for cutting the wrap film 10 drawn from the film roll 1 of the storage unit 31 is provided on the back side of the tip of the cover piece 40.

  As shown in FIG. 4, before the film roll storage device 3 is used, the lid 30 of the film roll storage box 2 is sealed with an opening piece 80. The opening piece 80 is located at the lower part of the front surface of the front plate 50 of the storage unit 31, and is formed in a belt shape along the longitudinal direction of the film roll storage box 2. The opening piece 80 is cutably connected to the tip of the cover piece 40. Further, the opening piece 80 is adhered to the surface of the front plate 50. When the film roll storage box 2 is opened, the lid 30 can be opened by cutting off the opening piece 80 along the longitudinal direction of the box.

  In addition, examples of the base paper constituting the film roll storage box 2 include, for example, cardboard, coated cardboard, and corrugated cardboard. However, the present invention is not limited to these, and papers known in the art may be appropriately selected and used. Can be. The base paper may be made by embossing, printing, or laminating using polyethylene or the like on these materials.

  The film roll storage device 3 before use (before opening) manufactured at a factory or the like is sealed in a state where the film roll 1 is stored in the film roll storage box 2 as shown in FIGS. I have. The film roll storage device 3 is transported in this state until used by a user. The film roll 1 tries to move and rotate in the film roll storage box 2 due to the vibration generated by the transfer at this time, but the loose portion 20 b of the small piece 20 attached to the surface of the film roll 1 is moved by the film roll storage box 2. And caught on the inner surface of it to suppress its rotation. The release portion 20b is hooked on the upper end portion 60 of the front plate 50 on the inner surface of the film roll storage box 2, for example. When the anti-slip portion 201 is provided, for example, at the tip of the release portion 20b, the anti-slip portion 201 is caught on, for example, the upper end portion 60 of the front plate 50 on the inner surface of the film roll storage box 2 to suppress the rotation. . Further, when the anti-slip portion 201 is provided on the surface of the separation portion 20b, the frictional force between the anti-slip portion 201 and the inner surface of the film roll storage box 2 becomes large, and the rotation thereof is suppressed. Further, the loose portion 20b of the small piece 20 may be hooked on the front plate upper end portion 60 in advance, or may be hooked on the front plate upper end portion 60 according to the movement of the film roll 1 afterwards. Thereafter, after the film roll storage box 2 is opened, the small piece 20 is pulled and the wrap film 10 is pulled out from the film roll 1 and used.

  According to the present embodiment, the small piece 20 that is caught on the inner surface of the film roll storage box 2 and suppresses the rotation of the film roll 1 is provided on the surface of the film roll 1 before use. Thereby, the rotation of the film roll 1 in the film roll storage box 2 at the time of transfer can be suppressed, and the tip (small piece 20) of the wrap film 10 of the film roll 1 can be positioned on the upper surface, so that the wrap film 10 can be easily pulled out, and the usability at the start of use of the film roll 1 can be improved.

  Since the small piece 20 has the fixing portion 20a and the separation portion 20b, and the separation portion 20b is hooked on the inner surface of the film roll storage box 2, the reaction force applied from the film roll storage box 2 to the separation portion 20b is fixed. The rotation of the film roll 1 can be appropriately suppressed. Further, for example, the small piece 20 can be used as a guide for pulling out the wrap film 10 when it is first pulled out.

  Since the release portion 20b is hooked on the front plate 50 of the film roll storage box 2, for example, when the film roll storage box 2 is opened, the small piece 20 is located on the upper surface of the film roll 1. Thereby, the small piece 20 can be pinched and maintained at a position where it can be easily pulled.

Since the loop stiffness of the loose portion 20b including the anti-slip portion 201 is 0.2 N or more, sufficient rigidity of the loose portion 20b is secured, and the rotation of the film roll 1 can be appropriately suppressed. Also,
Sufficient rigidity of the anti-slip portion 201 is ensured, and even if the user grips the anti-slip portion 201 with a finger, it is possible to prevent the anti-slip portion 201 from being crushed.

  Further, the loose portion 20b is caught in a gap between the front plate upper end portion 60 and the top plate 41 on the inner surface of the film roll storage box 2, or the frictional force between the inner surface of the film roll storage box and the film is increased. An anti-slip portion 201 for suppressing rotation of the roll 1 is provided. Thereby, rotation of the film roll 1 in the film roll storage box 2 at the time of transfer can be suppressed, and the leading end of the wrap film 10 of the film roll 1 (the anti-slip portion 201 of the small piece 20) can be positioned on the upper surface. Therefore, the wrap film 10 can be easily pulled out, and the usability at the start of using the film roll 1 can be improved.

  In particular, since the anti-slip portion 201 in the separation portion 20b is caught on the inner surface of the film roll storage box 2 or the frictional force with the inner surface of the film roll storage box is increased, the anti-slip portion 201 is removed from the film roll storage box 2. The reaction force applied to the release portion 20b including the release portion 20b can be appropriately transmitted to the film roll 1 via the fixing portion 20a, and the rotation of the film roll 1 can be appropriately suppressed.

  Note that if the loop stiffness of the loose portion 20b is 0.2 N or more, the rotation of the roll can be suppressed. If the loop stiffness of the width 10 mm is 1.5 N or less, the small piece 20 is rolled due to the rigidity of the small piece 20. There is little possibility that it will be lifted off the surface and peeled off. In order to prevent the small pieces 20 from peeling off from the roll surface, it is effective to increase the sticking of the small pieces 20 to the roll. However, if too strong, the film is broken when the small pieces 20 are peeled off from the film, and the usability is poor. In addition, since the rigidity required for the release portion 20b increases as the weight of the film roll increases, the film roll may be appropriately selected from the above range in consideration of the rotation suppressing effect, ease of use, and cost.

  The width (length in the direction perpendicular to the protruding direction) of the free portion 20b is preferably 5 mm or more in order to ensure that the free portion 20b is caught inside the box from the viewpoint of suppressing rotation. When it is also used as a film drawing piece, it is preferably 5 to 30 mm from the viewpoint of pinching easiness. Since the width of the free portion 20b and the loop stiffness rigidity are substantially proportional, the width of the free portion 20b may be appropriately adjusted to adjust the loop stiffness rigidity.

  The length at which the release portion 20b is securely hooked on the inner surface of the film roll storage box 2 is defined as the length at which the release portion 20b rises from the surface of the film roll 1 at 90 ° or less. It means the length of the hook. The rising angle is an angle formed by the loose part 20b with respect to a tangent at a contact point between the loose part 20b and the surface of the film roll 1. When the rising angle is 60 ° or less, the length of the releasing portion 20b is more preferably such that the releasing portion 20b is hooked on the inner surface of the film roll storage box 2, and when the rising angle is 0 ° to 20 °, the releasing portion 20b is turned on the film roll. The length that hooks on the inner surface of the storage box 2 is more preferable, and the length that the free portion 20b hooks on the inner surface of the film roll storage box 2 when the rising angle is 10 ° is most preferable.

  For example, when a film roll having an outer diameter of 40.5 mm is placed in a film roll storage box 2 having an inner diameter in the height direction of 42.1 mm and an inner diameter in the depth direction of 43.3 mm, the loose portion 20b having a length of 23 mm is provided. The rising angle from the surface of the film roll 1 is 10 °, which is the most preferable in terms of suppressing rotation. When the release portion 20b is long enough to be hooked on the inner surface of the film roll storage box 2 when the rising angle is 90 ° or less, the release portion 20b can be hooked on the film roll storage box 2 and a rotation suppressing effect can be obtained.

  The hook portion constituted by the front plate upper end portion 60 and the like may have any shape as long as the loose portion 20b is hooked and rotation can be suppressed. The width and height of the hooking portion may be longer than the width and thickness of the free portion 20b. When the gap between the upper end portion 60 of the front plate 50 and the top plate 41 is used as the hooking portion, the depth of the hooking portion is preferably 1 mm or more, since the rotation suppressing effect is high and it is preferable.

  The film roll with small pieces of the present invention is housed in a housing box by a known method or the like, and then delivered to the consumer. When the small piece 20 is used for the film withdrawing means, the small piece 20 is stored in advance toward the opening side of the storage box to suppress rotation during transportation, and the film withdrawal means is used when the consumer opens the box. This is preferable because it can be easily found. Alternatively, the film roll with small pieces may be rotated to a preferable position by vibrating the entire storage box after the storage.

  The film leading end of the film roll 1 may be formed such that both ends in the width direction are inclined toward the film rewinding direction. More specifically, the leading end of the film of the film roll 1 may be inclined so as to retreat in the rewinding direction from the center in the width direction to both ends. By doing so, the film withdrawing means can be more easily found based on its appearance, and the trouble that both ends of the film are caught in the film roll 1 during film withdrawal and cannot be withdrawn can be reduced. As a method of forming both ends of the film leading end so as to be inclined toward the film rewinding direction, a method of cutting the film leading end into a shape inclined with respect to the winding direction or a method of cutting the film leading end with respect to the winding direction After that, a method of folding back to a preferable shape using a roller, a guide plate, air blowing, or the like is used.

  As described above, the preferred embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to such examples. It will be apparent to those skilled in the art that various changes or modifications can be made within the scope of the concept described in the claims, and these naturally belong to the technical scope of the present invention. It is understood.

  For example, the number, shape, and position of the small pieces 20 are not limited to those in the above embodiment. For example, there may be a plurality of small pieces 20. The shape of the small piece 20 is not limited to a rectangular plate shape, but may be an elliptical shape or the like. Further, the position of the small piece 20 is not limited to the central portion in the longitudinal direction of the film roll 1 but may be near both ends. In addition, the rotation suppressing member does not need to function as a guide attached to the leading end of the film in order to pull out the wrap film 10, and in such a case, it may be provided on the film roll 1 separately from the guide.

  In addition, the film roll storage box 2 and the like may have other configurations. For example, combining with a film roll storage box provided with a means for preventing the film roll 1 from rotating in the box in the reverse direction (rotation in the direction opposite to the feeding direction) or a film roll storage box having an inner layer provided with a non-slip layer. As a result, the rotation suppressing effect is further enhanced.

  The material of the rotation suppressing member is not particularly limited, besides resin, paper, and plate material. The sticking means may use a self-adhesive tape or label, or may use a known method. The fixing part and the loose part may be made of different materials. In the case where the material is also used as a film drawing piece (small piece), the material is preferably a material such as resin or plate material that is hardly torn. In particular, PP, PET, polyethylene cloth and the like are inexpensive and preferable.

  In addition, by performing the non-slip processing on the surface of the rotation suppressing member on the side facing the inside of the storage box, the rotation suppressing effect can be further enhanced.

  Hereinafter, examples of the present invention will be described, but these do not limit the scope of the present invention.

(Loop stiffness rigidity)
Using a loop stiffness tester manufactured by Toyo Seiki Co., Ltd. under the conditions of 23 ° C. and 50% RH, the loop length is 50 mm, the pushing speed is 5 mm / sec, the pushing amount is 10 mm, and the measurement is performed 5 times. Rigid.

(Rotation prevention rate)
Fix a corrugated cardboard case containing 30 pieces of 30 cm x 50 m Saran Wrap (registered trademark, manufactured by Asahi Kasei Home Products Co., Ltd.) to a transport packaging tester BF-50UT manufactured by IDEX Co., Ltd. It was confirmed in advance that the rotation in the forward direction (extending direction) was performed, and a small piece was attached and vibrated for 1 minute at a frequency of 40 Hz and an acceleration of 3 G, and the rotation prevention rate was calculated based on how many of the ten rotations did not occur.

  The experimental conditions and results are shown in Tables 1 and 2 below.

  When the length of the loose portion of the small piece is short and the loose portion does not catch on the storage box, the rotation of the film roll cannot be prevented. However, when the loose portion is hooked on the storage box, it can be confirmed that the rotation can be suppressed. The optimum loop stiffness range was such that the tape forming the loose portion (including the non-slip portion) had a loop stiffness of 0.2 N or more, more preferably 0.3 N or more, and still more preferably 0.4 N or more. The rising angle of the free portion is preferably 90 ° or less, more preferably 60 ° or less, still more preferably 0 ° to 20 °, and most preferably 10 °.

  The present invention effectively suppresses the rotation of the film roll in the film roll storage box without performing any special processing, and further guides the film roll so that the knob portion is located at a position where it can be easily picked, and an appropriate drawing direction. Can be visually recognized, which is useful in improving usability at the start of use of the film roll.

DESCRIPTION OF SYMBOLS 1 Film roll 2 Film roll storage box 3 Film roll storage device 10 Wrap film 20 Small piece (rotation suppression member)
Reference Signs List 20a fixing part 20b loose part 30 lid part 31 storage part 41 top plate 50 front plate 60 front plate upper end part 201 anti-slip part

Claims (11)

A film roll storage device in which a film roll is stored in a film roll storage box,
The film roll is provided with a rotation suppressing member that suppresses rotation of the film roll by being caught in a gap between a front plate upper end portion of the inner surface of the film roll storage box and a top plate ,
The rotation suppressing member has a fixed portion fixed to the surface of the film roll, and a free portion separated from the surface of the film roll,
The length of the release part in the direction protruding from the film roll surface is a length at which the release part is hooked on the inner surface of the film roll storage box when the rising angle of the release part from the film roll surface is 90 ° or less. There is a film roll storage device. The film roll storage device according to claim 1 , wherein the loop stiffness of the separation portion is 0.2 N or more. One side of the rotation suppressing member is an adhesive surface,
The free portion, the is formed by folding back the adhesive face on the inside, the film roll storage device according to claim 1 or 2. The fixing portion of the rotation suppressing member is fixed to a winding end portion of the film of the film roll,
The film roll storage device according to any one of claims 1 to 3 , wherein the release portion of the rotation suppressing member is a knob portion that is picked up when the film is first pulled out. The film roll storage device according to any one of claims 1 to 4, wherein both ends of a film leading end portion of the film roll are inclined toward a film rewinding direction. The film roll storage device according to any one of claims 1 to 5 , wherein an anti-slip portion having a convex portion or a concave portion is provided on a surface or a back surface of the separation portion. The portion excluding the anti-slip portion of the release portion is formed by folding a tape forming an adhesive surface on one surface and bonding the adhesive surfaces together,
The film roll storage device according to claim 6 , wherein the anti-slip portion is formed without bonding the adhesive surfaces. The film roll storage device according to claim 6 , wherein the anti-slip portion is formed at a tip of the release portion. The film roll storage device according to any one of claims 6 to 8, wherein the anti-slip portion is formed on both surfaces of the separation portion. Wherein the free portion, the film caught in the gap between the roll front plate upper part of the storage box of the inner surface and the top plate suppresses the anti-skid parts rotation before SL film roll is provided, from claim 1 10. The film roll storage device according to claim 9. The fixing portion of the rotation suppressing member is fixed to a winding end portion of the film of the film roll,
The release portion of the rotation suppressing member is a knob portion that is pinched when the film is first drawn out,
The leading end of the release portion is caught in a gap between the upper end of the front plate on the inner surface of the film roll storage box and the top plate, and the film roll attempts to move and rotate in the film roll storage box due to vibration generated by the transfer. When suppressing the rotation of the film roll by the rigidity of the loose part,
The film roll storage device according to claim 1, wherein the loop stiffness of the separation portion is 0.2 N or more.

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