JPH0682071U - Storage core for synthetic resin film stock - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a core in which the original fabric is not creased during storage and transportation. [Structure] A core of an original fabric S in which a strip-shaped long film made of a soft and thin synthetic resin film is wound in multiple layers for storage and transportation, and has the following types. The first winding core 1 is composed of a pair of pillow materials 2 and 3, and each pillow material 2 and 3 has a wing shape in cross section. The second winding core 4 is composed of a pair of pillows 5 and 6, and each pillow 5 and 6 is formed.
The cross-sectional shape of the arc part is such that the arc part, the parallel part, and the triangle part are continuous, and one side of the triangle part is continuous with one side of the parallel part on a straight line. Is formed on the surface. The third winding core 10 includes a pair of pillow materials 11 and 12,
When arranged on the inner circumference of the original fabric, the space member 13 is used by fitting the space member 13 between the inner end faces of the pair of pillow members 11 and 12 with the arc portion facing outward. The fourth winding core 14 is a thick plate-shaped member, and has both ends formed in arcuate portions.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a core for storage and transportation of an original fabric made of a synthetic resin film. In recent years, all products made of synthetic resin films have been used in various industrial fields, and for example, a transparent pocket file is one of them. The transparent pocket type file is a file for storing documents by binding 10 to 50 transparent bag-shaped pockets made of polypropylene film, which is convenient for visually checking the stored documents from the outside. It is often used.

This transparent pocket type file is manufactured by manufacturing a long tube-shaped film 50 as shown in FIG. 11 (A) and then cutting the film 50 to finish it as a file. In addition, in order to be used for other purposes, a single-open long film 51 as shown in FIG. 11 (B), a double-open long film 52 as shown in FIG. 11 (C), and FIG. Such a single long film 53 is also manufactured and finished into various products. By the way, since the manufacturer of a long film, that is, a semi-finished product manufacturer and the manufacturer who finishes a final product are different from each other, it is necessary to store and transport the long film. In addition, transportation is often by truck, rail, or ship. Even if the manufacturers are the same, it is necessary to transfer between processes or between factories. In this case, a conveyor or a truck will be used.

As described above, when transporting a long film, it is inconvenient as it is. Therefore, it is necessary to form a multi-layered material roll and package it so as not to collapse the material. In that case, A long film is wound in multiple layers using some kind of core. The present invention relates to a core for storing and transporting such a raw material.

[0004]

[Prior art]

 The conventional core is described by taking the transparent pocket type file raw fabric S shown in FIG. 9 as an example. The conventional core uses two paper tubes 51, and the inner core of the raw fabric S has two cores 51. The paper tube 51 of is put in so that the state of being wound in multiple layers is not broken. Then, I try to wrap it with a proper wrapping paper from above. The paper tube 51 is a paper pipe tightly wound with strong paper such as kraft paper.

[0005]

[Problems to be solved by the device]

 By the way, since the polypropylene film 50 of the original fabric S is soft and thin, it bends along the outer shape of the paper tube 51 due to the weight of the original fabric S itself. For example, as shown in FIG. 10, at the inner peripheral portion a of the original sheet S wound around the paper tube 51, the original sheet S is tightly bent by the weight of the original sheet S, and if vibration during transportation is applied in this state, It may be bent at an acute angle to make creases, and once creases are made, it is similar to paper creases and cannot be removed. In particular, it is not desirable to have a crease in a transparent pocket file because high transparency is important for maintaining high commercial value.

In view of such circumstances, it is an object of the present invention to provide a winding core in which the original fabric is not creased during storage and transportation.

[0007]

[Means for Solving the Problems]

 The core of the first invention is a core of a raw material obtained by winding a strip-shaped long film made of a soft and thin synthetic resin film in multiple layers for storage transportation, and the core is composed of a pair of pillow materials. When each pillow has a wing shape in cross section and is arranged on the inner circumference of the original fabric, the arcuate portions are used so that they face each other outward.

In the core of the second invention, the core comprises a pair of pillows, and each pillow has a cross-sectional shape in which an arc portion, a parallel portion and a triangle portion are continuous, and one side of the triangle portion is Contiguously with one side of the parallel part, both sides of the triangular part are formed with slopes on one side and flat faces on the other side. It is intended for use, and the slope sides of the triangles are used by overlapping.

A winding core according to a third aspect of the present invention comprises a pair of pillow members and a spacer member inserted between the pair of pillow members, and each pillow member has a cross-sectional shape of an arc portion. The parallel part has a continuous shape, the inner end surface of the parallel part is formed in the fitting part, and the spacing member has a shape in which the parallel part and the fitting parts are formed on both side edges of the parallel part. When arranging on the inner circumference, place a pair of pillows with the arc portion facing outward and at intervals, and insert a spacer between the inner end faces of the pair of pillows to fit each other. It is used by fitting the parts together.

The winding core of the fourth invention is one in which both ends of a thick plate-shaped member are formed into arcs, and is used by being arranged on the inner circumference of the original fabric.

The strip-shaped long film in the present invention is not particularly limited in thickness and length, but for example, it is often 200 m to 2000 m in length and 10 to 300 μm in thickness. Of course, the core of the present invention can also be applied to a raw material of a strip-shaped long film outside the above range.

[0012]

[Action]

 When the winding cores of the first to fourth inventions are all put in the inner circumference of the original fabric, the inner circumference of the original fabric is smoothly wound along the circumference of the winding core, and there is a portion which is bent at an acute angle. It doesn't crease because it doesn't exist.

[0013]

【Example】

 Next, each embodiment of the present invention will be described with reference to the drawings. (First Embodiment) This is an embodiment of the first invention, and FIG. 1 shows the core 1. The winding core 1 of the present embodiment is composed of a pair of pillow materials 2 and 3, and both pillow materials 2 and 3 are formed to have an airfoil cross section. Reference numerals 2a and 3a indicate arcuate portions. 1. When using the above-mentioned pillow materials 2, 3, as shown in FIG. 2, the arcuate portions 2a, 3a are arranged on the inner circumference of the original fabric S so as to face each other outward. By doing so, the original fabric S is smoothly curved and will not be creased even if vibration or the like is applied during transportation.

(Second Embodiment) This is an embodiment of the second invention, and FIG. 3 shows the core 4. The winding core 4 of this embodiment is composed of a pair of pillow materials 5 and 6. Each of the pillow members 5 and 6 has a shape in which the circular arc portions 5a and 6a, the parallel portions 5b and 6b, and the triangular portions 5c and 6c are continuous in a cross-sectional view, and one side of the triangular portions 5c and 6c is the parallel portion 5b, It is continuous with 6b in a straight line. Therefore, one surface of each of the triangular portions 5c, 5c is formed as the inclined surface 7 and the other surface is formed as the flat surface 8. When using the above-mentioned pillows 5 and 6, as shown in FIG. 4, the arcuate portions are directed toward the outside on the inner circumference of the original fabric S, and the slopes of the triangular portions 5c and 6c are arranged so as to overlap each other. . By doing so, the original fabric S is smoothly curved and does not crease even if vibration is applied during transportation.

Third Embodiment This is an embodiment of the third invention, and FIG. 5 shows the core 10. The winding core 10 of the present embodiment is composed of a pair of pillow materials 11 and 12 and a spacing material 13 inserted between them. Each of the pillow members 11 and 12 has a shape in which arc portions 11a and 12a and parallel portions 11b and 12b are continuous, and inner end surfaces of the parallel portions 11b and 12b are formed in fitting recesses 11c and 12c. The spacing member 13 has a parallel portion 13b and fitting protrusions 13c formed on both side edges thereof. It should be noted that the fitting projections may be formed on the pillow members 11, 12 and the fitting recesses may be formed on the spacing member 13. When the winding core 10 is used, as shown in FIG. 6, the circular arc portions 11a and 12a of the pillow members 11 and 12 are directed outward and spaced apart, and the spacing member 13 is placed between them. insert. By preparing some arbitrary widths for the spacing members 13, the spacing between the pair of pillow members 11, 12 can be arbitrarily selected. Also in this embodiment, the original fabric S is smoothly curved, and even if vibration is applied during transportation, no crease is formed.

(Fourth Embodiment) This is an embodiment of the fourth invention, and FIG. 7 shows the core 14. The winding core 14 is a thick plate-shaped member, the middle portion thereof is a parallel portion 14b having the same thickness, and both ends thereof are formed into arc portions 14a. When this winding core 14 is used, it may be inserted into the inner circumference of the original fabric S as shown in FIG. In this case, since the original fabric S is smoothly curved along the outer circumference of the winding core 14, especially the circular arc portion 14a, no crease is formed.

[0017]

[Effect of device]

 According to the present invention, it is possible to prevent the original sheet from being creased, and it is possible to maintain high transparency, which is important particularly in a transparent pocket type file.

[Brief description of drawings]

FIG. 1 is a perspective view of a winding core 1 according to a first embodiment.

FIG. 2 is a diagram illustrating a usage state of the winding core 1 according to the first embodiment.

FIG. 3 is a perspective view of a winding core 4 according to a second embodiment.

FIG. 4 is an explanatory view of a usage state of the winding core 4 according to the second embodiment.

FIG. 5 is a perspective view of a winding core 10 according to a third embodiment.

FIG. 6 is a diagram illustrating a usage state of the winding core 10 according to the third embodiment.

FIG. 7 is a perspective view of a winding core 13 according to a fourth embodiment.

FIG. 8 is an explanatory view of a usage state of the winding core 13 according to the fourth embodiment.

FIG. 9 is an explanatory view of a usage state of a conventional winding core.

FIG. 10 is an explanatory diagram of a problem of the conventional winding core.

FIG. 11 is a perspective view of a strip-shaped long film made of synthetic resin.

[Explanation of symbols]

 1 core 2 pillow material 3 pillow material 4 core 6 pillow material 7 pillow material 10 core 11 pillow material 12 pillow material 13 spacing material 14 core

Claims (4)

[Scope of utility model registration request] 1. A roll core of an original fabric obtained by winding a soft strip-shaped long film made of a synthetic resin film in multiple layers for storage and transportation, wherein the core comprises a pair of pillow materials, and each pillow material Is a wing-shaped cross-section, and when placed on the inner circumference of the material roll, the arc-shaped parts are used with the arc-shaped parts facing outwards. 2. A roll core of an original fabric obtained by winding a strip-shaped long film made of a soft and thin synthetic resin film in multiple layers for storage and transportation, wherein the core is composed of a pair of pillow materials. The cross-sectional shape of the arc is such that the arc portion, the parallel portion and the triangular portion are continuous, and one side of the triangular portion is linearly continuous with one side of the parallel portion. It is formed on the surface, and when it is placed on the inner circumference of the original fabric, the circular arc parts face each other and the slope sides of the triangular parts are overlapped and used. Storage of the synthetic resin film original fabric Transport core. 3. A roll core of an original fabric obtained by winding a strip-shaped long film made of a soft and thin synthetic resin film in multiple layers for storage and transportation, the core having a pair of pillows and a pair of pillows. The cross-sectional shape of each pillow material is a shape in which the arc portion and the parallel portion are continuous, and the inner end surface of the parallel portion is formed in the fitting portion. The spacer has a shape in which a parallel part and fitting parts are formed on both side edges, and when the spacer is arranged on the inner circumference of the original fabric, the arc part faces outward,
And a pair of pillows are arranged at intervals, a spacer is fitted between the inner end surfaces of the pair of pillows, and the mating parts are fitted together for use. A core for storage and transportation. 4. A roll core of a raw material obtained by winding a strip-shaped long film made of a soft and thin synthetic resin film in multiple layers for storage and transportation, wherein the core has arcuate portions at both ends of a thick plate member. It was formed in. Storage and transport core for synthetic resin film stock.