JP5822147B2 - Film roll wrinkle countermeasure structure - Google Patents

Description

  The present invention relates to a wrinkle countermeasure structure of a film roll in which a film processed into a packaging material for confectionery bags, foods, daily necessities and the like is wound in a roll shape.

  In film rolls for transporting printing films to the printing process, wrinkles that can be formed during transport are a problem. The cause of wrinkles is often due to the end surface corners of the film roll formed by winding the film in a roll shape, which is pressed by the floor surface or the like. That is, the film roll may be transported by rolling on the floor surface with its end face corners down, and the corners of the film roll are pressed, and the corners are wrinkled. Therefore, ingenuity has been devised to prevent wandering in such situations. In the following Patent Document 1, as shown in FIG. 5 (A), a cushioning material C such as corrugated cardboard or foamable plastic is provided between the hard protective plate P provided on the end face of the film roll F and the end face of the film roll F. Further, as shown in FIG. 5 (B), a predetermined space S is formed at the buffer material C side portion of the outer peripheral edge of the protective plate P. By doing so, as shown in FIGS. 6A and 6B, even when the film roll F is rolled and conveyed on the floor surface with its end face corners down, the corners are provided with cushioning material. Since there is C and the predetermined space S, the drag from the floor surface against gravity is not transmitted to the corners of the end face of the film roll F, so that the film roll F cannot be wrinkled.

Japanese Patent No. 4130406

However, when the cushioning material C is crushed by repeated use and does not perform its cushioning function, the inner diameter side of the end face corner of the film roll F in the case of FIG. 6A or the space S in the case of FIG. The drag from the floor surface against gravity is transmitted to the A part of the end face of the film roll F moved to the position, and the part is wrinkled.
In view of such a problem, an object of the present invention is to suppress the formation of wrinkles on the end surface of the film roll by suppressing the drag from the floor against gravity acting on the film portion of the film roll.

The first invention of the present invention is a flat protective plate that suppresses external force applied to the end surface of the film roll by forming a film roll by winding a film around a core member that is a core for winding. Is a film roll wrinkle countermeasure structure formed by covering the protective film, and when the film roll covered with the protective plate is placed in a state of receiving a resistance against gravity from the plate surface of the protective plate, the resistance is applied to the film roll. It is characterized by having a configuration that avoids being transmitted to the core member and transmitting it intensively to the core member.
According to 1st invention, since it has the structure which transmits the drag from a protection board to a core member, and avoids transmitting to a film roll, it can suppress that a wrinkle is formed on the end surface of a film roll.

According to a second aspect of the present invention, in the first aspect, the core member is formed of a hollow pipe, and the protection plate is inserted in a state where a protrusion extending from the center of the protection plate is inserted into the hollow portion of the core member. A spacer having a strength for supporting the gravity of the film roll is provided around a portion of the film roll that covers the end surface of the film roll and is sandwiched between the core member and the protective plate. When the substrate is placed in a state where a drag force against gravity is generated, the drag force is transmitted from the protective plate to the core member via the spacer.
According to the second invention, since the drag from the protective plate is transmitted to the core member via the spacer and is not received by the film roll, it is possible to suppress wrinkles on the end surface of the film roll.

According to a third invention of the present invention, in the second invention described above, a cushioning material is interposed between the film roll and the protective plate and around the spacer so as to relieve external force applied to the film roll. It is characterized by that.
According to the third invention, since the cushioning material is interposed between the film roll and the protection plate, even if the film roll and the protection plate may approach for some reason, the approaching motion Is absorbed by the compression deformation of the cushioning material, and the film roll and the protective plate are prevented from coming into contact with each other, and the end surface of the film roll can be prevented from wrinkling.

It is a front view of one embodiment of the present invention. It is a disassembled perspective view of the lower part of the said embodiment. It is III-III sectional drawing of FIG. It is a perspective view in the packing state of the said embodiment. It is explanatory drawing in order to demonstrate the prior art in this invention. It is explanatory drawing for demonstrating the effect | action of the prior art similar to FIG.

1 to 4 show an embodiment of the present invention. This embodiment is an example in which the present invention is applied to a film roll in which a film processed into a confectionery bag is wound into a roll shape.
The film roll 10 is configured by winding a film 12 using a core member 11 formed of a hollow pipe as a winding core.
When the film roll 10 is transported, wrinkle countermeasure structures 20 for suppressing wrinkles on both end faces of the film roll 10 are attached. As the wrinkle countermeasure structure 20, first, flat protective plates 21 that suppress external force from being applied to both end faces of the film roll 10 are respectively covered. Each protective plate 21 is a disc having a diameter approximately equal to the outer diameter of the film roll 10 and is made of resin, wood, or the like. A through hole 21a is formed in the circular central portion of the protective plate 21, and the shaft portion 22a (corresponding to the projection portion of the present invention) of the cap 22 is inserted into the hollow portion of the core member 11 through the through hole 21a. Thus, the protective plate 21 is put on the end surface of the film roll 10. The cap 22 is integrally provided with a flange portion 22b at the end of the shaft portion 22a. When the shaft portion 22a of the cap 22 is inserted into the protection plate 21 and the core member 11, the flange portion 22b of the cap 22 is protected by the protection plate 21. The cap 22 is fitted into a recess 21 b formed around the through hole 21 a so that the cap 22 does not enter the hollow portion of the core member 11, and the inserted cap 22 is removed from the plate surface of the protection plate 21. It does not protrude.

In a state where the end face of the film roll 10 is covered with the protective plate 21, the strength between the core member 11 and the protective plate 21 and around the shaft portion 22 a of the cap 22 supports the gravity of the film roll 10. A spacer 23 is provided. The spacer 23 is made of the same diameter, the same thickness, and the same material as the core member 11, and the height is approximately the same as the thickness. Therefore, when the film roll 10 is placed on the floor, all the gravity of the film roll 10 is received by the spacer 23 and transmitted to the protective plate 21. In other words, the drag force from the floor surface against the gravity is transmitted from the protective plate 21 to the core member 11 via the spacer 23 and is not transmitted to the film roll 10. In addition, the material which comprises the spacer 23 should just be comprised so that it may be equipped with the intensity | strength which supports the gravity of the film roll 10, and plastics, a metal, etc. may be sufficient as it.
A corrugated cardboard plate 24 (corresponding to the cushioning material of the present invention) is interposed between the film roll 10 and the protective plate 21 and around the spacer 23 to soften the external force applied to the film roll 10. The corrugated cardboard plate 24 is made of corrugated cardboard, but may be foamed plastic. Further, the corrugated cardboard plate 24 is formed in a donut shape having a size such that the outer diameter of the spacer 23 fits into the inner diameter so as to fill the space between the film roll 10 and the protective plate 21. Therefore, when the protective plate 21 is put on both end faces of the film roll 10 via the corrugated cardboard plate 24, they form a single cylindrical shape as a whole.
The protection plate 21, the cap 22, the spacer 23, and the corrugated cardboard plate 24 constitute the wrinkle countermeasure structure 20.
When the film roll 10 is transported, it is packed as shown in FIG. That is, the anti-wrinkle structure 20 is put on both end faces of the film roll 10 as described above, the protective sheet 31 for preventing dirt is wound around the outer periphery of the film roll 10, and the belt 32 is wound thereon to integrate them. ing. The belt 32 is wound between the hollow portion of the core member 11 and the outer peripheral portion of the film roll 10, and is wound at three locations that are substantially equidistant on the outer periphery of the film roll 10. The number of winding points of the belt 32 on the outer periphery of the film roll 10 may be four or more. Moreover, it replaces with winding of the belt 32, the outer peripheral part corresponding to the both ends of the film roll 10 including the wrinkle countermeasure structure 20 is wound with an adhesive tape, and the film roll 10 and the wrinkle countermeasure structure 20 are integrated. You may do it.

According to the above embodiment, the drag force from the protective plate 21 against the gravity of the film roll 10 is transmitted to the core member 11 via the spacer 23 and is not received by the film 12 portion of the film roll 10. Therefore, it is possible to suppress wrinkles on the end surface of the film roll 10.
In addition, since the corrugated cardboard plate 24 is interposed between the film roll 10 and the protective plate 21, even if the film roll 10 and the protective plate 21 may approach for some reason, they approach each other. The movement is absorbed by the compressive deformation of the cardboard abutment plate 24, and the film roll 10 and the protective plate 21 are prevented from coming into contact with each other, and the end surface of the film roll 10 can be prevented from wrinkling. The phenomenon in which the film roll 10 and the protective plate 21 approach each other occurs in the following case. First, as described based on FIG. 4, when the film roll 10 is strongly wound by the belt 32 and the protective plate 21 is deformed, secondly, the outer peripheral edge portion of the protective plate 21 as shown in FIG. When the film roll 10 is tilted down and placed on the floor surface, when the core member 11 is weakly supported by the cap 22 and the film roll 10 is tilted with respect to the protective plate 21, third, with respect to the core member 11. This is a case where the winding strength of the film 12 is weak, the core member 11 receives the drag from the protective plate 21 via the spacer 23, and the core member 11 is pushed in the axial direction so as to come out of the film roll 10.

As mentioned above, although specific embodiment was described, this invention is not limited to those external appearances and structures, A various change, addition, and deletion are possible in the range which does not change the summary of this invention. For example,
1. In the above embodiment, the separate spacer 23 is provided between the core member 11 and the protective plate 21, but the spacer 23 may be integrated with the core member 11, integrated with the protective plate 21, or integrated with the cap 22. good.
2. In the said embodiment, although the wrinkle countermeasure structure 20 was provided in the both end surfaces of the film roll 10, you may provide only in the end surface used as the downward direction.
3. The use of the film is not limited to confectionery bag films. When it is a film roll, any soft packaging film may be used as long as it receives an external force on its end face to cause buckling and cause wrinkles on the film.

DESCRIPTION OF SYMBOLS 10 Film roll 11 Core member 12 Film 20 Wrinkle countermeasure structure 21 Protection board 22 Cap 22a Shaft part (projection part)
23 Spacer 24 Corrugated cardboard (buffer material)
31 Protective sheet 32 Belt

Claims (1)

Film roll in a state where the film on a core member of a hollow pipe made of the winding core is wound is configured, on the end face of the film roll, plate-shaped protection plate capable of suppressing the external force is applied to the end face It is a wrinkle countermeasure structure of a film roll formed by covering,
The protective plate is formed by covering the end surface of the film roll with a protruding portion extending from the center thereof inserted in the hollow portion of the core member,
A spacer sandwiched between the core member and the protective plate, and around the protrusion, has a shape that corresponds to the protective plate side end surface of the core member and has a strength to support the gravity of the film roll. When the film roll is placed in a state where a drag force is generated against the gravity, the drag force is transmitted from the protective plate to the core member via the spacer,
A film roll wrinkle countermeasure structure characterized in that a cushioning material that softens an external force applied to the film roll is interposed between the film roll and the protective plate and around the spacer.

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