JP2001302105A - Packaging sheet for metal filament winding reel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging sheet for improving packaging and inspecting workability during packaging a reel on which a metal filament is wound and improving tightness, preventing damage to the metal filament while maintaining rust preventing effect, and being usable repetitively. SOLUTION: One end of the packaging sheet 1 in the longitudinal direction is wrapped on the metal filament wound on the reel R, with a face fastener (a magic sheet) 4 to be an outer face. A coating portion 2 of the metal filament is pushed against the outer periphery of the metal filament. A flange contact portion 3 is wrapped on both flanges F, F of the reel via a bent portion B while being bent in a L-shape. A face fastener 5 is pushed against the face fastener 4 for fixing the packaging sheet 1 at both ends in the longitudinal direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packing sheet used for preventing rust and dust on a metal wire (steel wire, plated steel wire, copper wire, etc.) wound on a reel having flanges at both ends of a winding drum. More particularly, the present invention relates to a packing sheet for a metal filament wound reel (hereinafter simply referred to as a "packing sheet") which can be used repeatedly many times while maintaining a rust prevention function and a dust prevention function.

[0002]

2. Description of the Related Art Many metal wires, such as steel wires, plated steel wires, and copper wires, are shipped on reels. Rust-proof paper (commonly known as VC)
In general, it is wound and packed. This literally aims to prevent rust on the metal filament and also has a dustproof effect. When using the conventional rust-proof paper as a packing means, as shown in FIG. 4, it is wound so as to cover the outer peripheral surface of a metal filament wound around a winding drum of a reel R having flanges F, F fixed to both ends. In addition, several places at the ends in the longitudinal direction were fixed with an adhesive tape 12, and further, an adhesive tape 13 for seaming was stuck between the rust-proof paper 11 and the flange F. The rust-proof paper is obtained by applying a chemical substance such as polyethylene to a paper as a base material by laminating. That is, by applying a chemical substance, the aim is to block outside air and moisture, and to prevent the occurrence of rust or discoloration.

[0003]

However, the rust-preventing paper as the above-mentioned conventional packing means is very weak against external force, and easily breaks due to a light collision with a flange of another reel in a transportation process. There were drawbacks. Therefore, the problem of rusting could not be completely solved, and the metal wire had been damaged. Therefore, the conventional rust-proof paper has a bad influence on the quality of the metal filament, particularly when the metal filament is easily rusted. For example, in the case of a bead wire for a tire, the surface of a steel wire is plated with bronze in order to obtain adhesiveness with rubber, but the bronze is very weak against moisture and easily discolors upon contact with outside air. This discoloration is due to surface oxidation and adversely affects the adhesion to rubber. For this reason, when packing bead wires for tires, sufficient airtightness and moisture prevention are required. However, as described above, conventional rust-proof paper could not meet this requirement at all.

In FIG. 4, there is a quality problem in the operation of attaching the adhesive tape 13. In other words, in order to make the gap between the rust-preventive paper 11 and the flange F look tight, the rust-preventive paper should be along the cylindrical surface of the rust-preventive paper and the plane of the flange.
It is necessary to stick the adhesive tape while bending it into an L-shape. However, the elasticity of the adhesive tape is insufficient, and a phenomenon that wrinkles inevitably occurs. Due to the wrinkles, a gap is formed between the adhesive tape and the rust-proof paper or between the adhesive tape and the flange, and the rust-preventing effect is reduced.

In addition, since the above-mentioned seaming work is very troublesome, there is a problem that the efficiency of the packing work is remarkably reduced.

[0006] Further, the conventional rust-preventive paper induces environmental problems which have recently become a serious problem. This is because this rust-proof paper is almost disposable, and the rust-proof paper after use must be discarded.However, since the laminate material is a chemical substance such as polyethylene, harmful substances are incinerated when incinerated at normal temperature. Because it occurs. Therefore, the processing of the rust-proof paper must be entrusted to a company having a high-temperature incineration equipment, which greatly increases the processing cost.

[0007] As described above, the conventional rust-proof paper has various problems, and a new packing means to replace it has been desired. To meet this demand, the present applicant has proposed a packing sheet as disclosed in Japanese Utility Model Registration No. 3058076. This packing sheet has a width greater than the inner width of the reel flange, is made of an elastic body having air permeability, forms a rising portion in which both end portions in the width direction come into contact with the inner surface of the reel flange, and attaches the metal filament to the inside of the reel. Was sealed. By adopting this structure, the metal wire can be sealed inside the reel, and the metal wire can be prevented from being oxidized (rust or discolored) and can be used repeatedly.

However, since the above-mentioned packing sheet is a sheet-like elastic body having a uniform thickness without a boundary between a portion covering the reel surface and a portion (rising portion) along the inner surface of the flange, the flanges on both sides are formed. In order to maintain a uniform height and form a rising portion and wind it around a reel, considerable skill is required, which has been a cause of a reduction in workability. In addition, when the rising portion on one flange side is small, the sealing performance is reduced, so that the inspection is troublesome.

When the thickness of the entire sheet is increased so that the rising portion presses against the inner surface of the flange, "wrinkles" generated at the bent portion of the rising become large, and a gap is generated due to the influence of the wrinkles. There was naturally a limit to improving the sealing performance by increasing the restoring force. As another problem, when fastening means (for example, hook-and-loop fasteners) are provided at the overlapped portions at both ends in the longitudinal direction, a gap is generated between sheets of the overlapped portion due to the thickness of the fastening means itself, and the sealing performance is reduced. There was a risk of doing.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has improved packing and inspection workability, improved sealing performance, and maintained a rust prevention effect. An object of the present invention is to provide a packaging sheet that can be used repeatedly while preventing an accident in which a metal filament is damaged.

[0011]

In order to solve the above-mentioned problems, a packing sheet of the present invention is a sheet for packing a metal filament wound around a reel drum having flanges at both ends. On both sides in the width direction of the striated body covering portion, via the bent forming portion, rises in the circumferential direction at a substantially uniform height,
A first invention in which a flange contact portion for pressing the inner surface of the flange with a restoring force is provided continuously. According to the first invention, when the outer peripheral surface of the metal filament wound around the reel winding body is packed so as to be wound by a sheet, the metal filament coating covers the outer peripheral surface of the metal filament. , And bends reliably at the bending connection portion. Then, the restoring force of the bent connecting portion and the flange contact portion makes contact with the flange contact portion so as to press the inner peripheral surface of the flange.

In the first invention, the second invention is the one in which the thickness of the flange contact portion is larger than the thickness of the metal wire covering portion. Since the flange contact portion is to press the inner surface of the flange firmly to eliminate the gap, a certain thickness is required. However, if it is too thick, the handling workability will be poor. Therefore, the thickness of the flange contact portion is preferably in the range of 1 to 10 mm although it depends on the material.

In the second invention, the third invention is that in which the flange contact portion is formed by folding a packing sheet. According to this, the thickness of the flange contact portion can be made larger than the thickness of the metal filament covering portion. Further, since the metal wire covering portion and the flange contact portion are integrally connected, airtightness is reliably maintained and the manufacturing cost can be reduced.

Further, in any one of the first to third inventions, the sheet is made of a fibrous material as a fourth invention. The term fibrous material as used herein refers to a knitted or woven fabric or the like manufactured using natural fibers or chemical fibers. This is because, when a fibrous material is used, when the sheet is stretched under tension, the sheet expands in fiber units, so that local expansion and contraction of the sheet hardly affects other parts, and the generation of wrinkles is suppressed. As the material of the packing sheet of the present invention, cotton canvas, which is generally used for a vehicle top and a tent, is particularly preferable. This is because the cotton canvas has a good balance of rigidity and elasticity.

Further, in any one of the first to fourth inventions, a packing sheet in which hook-and-loop fasteners are respectively attached to both end overlapping portions in the longitudinal direction of the packing sheet is referred to as a fifth invention. Here, the hook-and-loop fastener is "magic tape (trademark)" generally called. By attaching the hook-and-loop fastener, the packing sheet can be easily wound with one touch when the packing sheet is wound around the outer peripheral surface of the metal filament and the overlapping portion at both ends in the longitudinal direction of the packing sheet is fixed. Also, in the case of unpacking, the packing sheet can be easily removed simply by peeling off the hook-and-loop fastener.

[0016] In the fifth aspect of the present invention, the end of the lower overlapped portion of the both end overlapped portions in the longitudinal direction of the packing sheet is provided.
A sixth embodiment is provided with a seam portion provided in the same direction as the other surface fastener. The seam serves to close a gap created between the overlapping portions of the packing sheet (between the lower and upper overlapping portions) due to the thickness of the hook-and-loop fastener. Thereby, invasion of the outside air from both end overlapping portions of the packing sheet can be prevented as much as possible.

Further, in any one of the first to sixth inventions, a sheet in which at least one corner of both ends in the longitudinal direction of the sheet is obliquely cut (obliquely cut) is referred to as a seventh invention. . The overlapping portion at both ends of the packing sheet is bulky because the lower overlapping portion is overlapped from above the lower overlapping portion. In particular, when the flange contact portion of the upper overlap portion rides on the flange contact portion of the lower overlap portion, it is inevitable to some extent that a local gap occurs due to the thickness of the flange contact portion. . However, according to the seventh aspect, this gap can be made as small as possible. That is, by cutting the corner of the end of the sheet obliquely, the contact distance between the two flange contact portions becomes longer, and the local gap can be dispersed in the sheet longitudinal direction.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The thickness of the bent portion is preferably smaller than the thickness of the flange contact portion. The reason for this is that the bending portion needs "flexibility" and the flange contact portion needs some "rigidity". Further, with such a structure, since the sheet is reliably bent at the bent portion with respect to the bending of the sheet, the workability of handling the packing sheet can be improved. However, since the bent portion also serves as a “spring” for pressing the flange contact portion against the inner surface of the flange, a certain thickness is required.

As the forming means for increasing the thickness of the flange contact portion, the sheet is preferably folded, but other means may be employed. For example, strips of cotton or non-woven fabric are sewn on both sides in the sheet width direction,
Alternatively, it may be attached. Further, a rubber lining may be applied to the flange contact portion to increase the thickness.

Further, the relationship between the metal wire covering portion, the bent portion, and the flange contact portion may be sewn or pasted to each other by using a separated one even if it is an integral body. It may be attached. Further, each part may be made of the same material, or each part may be made of a different material using the various materials described above.

If the hook-and-loop fastener is attached such that one is longer in the sheet longitudinal direction and the other is longer in the sheet width direction, even if the winding amount of the metal filament changes and the outer peripheral length of the metal filament changes. Since the fastening position can be easily changed, versatility and versatility can be increased.

It is preferable that the outer surface of the packing sheet is waterproofed and the inner surface is provided with rustproof means. In the case of the present invention, for example, a wax may be coated as a waterproof treatment, and a bag containing, for example, a vaporizable rust inhibitor may be attached to the inner surface of the sheet as a rust preventive means.

FIG. 1 shows an embodiment of the packing sheet according to the present invention. The packing sheet 1 is made of cotton canvas, and has flange contact portions 3 and 3 on both sides in the width direction of the metal wire covering portion 2.
Are connected continuously. The flange contact portion 3 is formed by folding both ends in the width direction of the cotton canvas into a double shape. Therefore, the thickness of the flange contact portion 3 is twice as large as the thickness of the metal wire covering portion 2. The folded portion is stitched in the longitudinal direction (stitches are omitted in the figure).

Three surface fasteners (magic tapes) 4, 4, and 4 are attached to one end in the longitudinal direction of the sheet. The sheet surface to which the hook-and-loop fastener 4 is attached becomes an outer surface when wound around a reel. At the other end in the longitudinal direction of the sheet, a hook-and-loop fastener 5 is attached to the back side of the surface to which the hook-and-loop fastener 4 is attached, long in the sheet width direction. The relationship between the surface fasteners 4 and 5 may be such that one is male and the other is female.

Further, a seaming portion 6 is provided on the side to which the hook-and-loop fastener 4 is attached. The seaming portion 6 prevents outside air from entering from the space between the hook-and-loop fasteners 4. Therefore, the thickness of the seaming portion 6 may be approximately the same as the thickness of the hook-and-loop fasteners 4 and 5 pressed together. The material of the seaming portion 6 may be a fibrous material or a rubber material, but a material having no air permeability is preferable.

Further, the oblique portions 7, 7 are provided at one end of the packing sheet 1.
Is provided. This is obtained by diagonally cutting the corners of the sheet.

The packaging of a reel using the above-described packaging sheet 1 will be described with reference to FIGS. One end of the packing sheet 1 is wound around the metal filament W (not visible in FIG. 2) wound around the reel R so that the hook-and-loop fastener 4 is on the outer surface, and the metal filament coating 2 is wound around the metal filament W. While pressing the flange contact portion 3 in the L-shape on the inner surfaces of both flanges F, F of the reel, winding it around the outer peripheral surface of the metal filament W, pressing the hook-and-loop fastener 5 against the hook-and-loop fastener 4, Fix both ends of 1.

FIG. 3 is a partial cross-sectional view of the reel, in which a bent portion B is formed at the boundary between the metal filament covering portion 2 and the flange contact portion 3. The flange contact portion 3 is pressed against the inner surface of the flange F by a restoring force against bending.

[0029]

According to the packing sheet of the present invention, the flange contact portion can be easily and reliably raised at a substantially uniform height via the bent portion, and therefore, compared to the prior art,
Handling operability can be greatly improved, and sealing performance can be improved.

Further, by making the flange contact portion thicker than the metal wire covering portion, the restoring force of the flange contact portion is improved, so that the sealing performance can be further improved and the efficiency of the packing operation can be improved. it can. Further, by forming the flange contact portion by folding back the sheet, the manufacturing cost can be reduced and a practical sheet can be provided.

Further, by using a fibrous material for the sheet, the influence of local expansion and contraction of the sheet on other portions can be reduced as much as possible, and the occurrence of wrinkles is suppressed, so that the sealing property is improved. It can be further improved.

Further, by attaching the hook-and-loop fasteners to the overlapping portions at both ends in the longitudinal direction of the sheet, the efficiency of packing and unpacking work is increased, and the work cost can be reduced. Also,
By providing a seam at the end of the lower polymerized portion of the two-sided polymerized portion in the longitudinal direction of the packing sheet, it is possible to prevent outside air from entering from a gap between the hook-and-loop fasteners, and the rust prevention effect is further improved. .

Further, by cutting at least one end of both ends in the longitudinal direction of the sheet obliquely to form an oblique portion, the gap between the overlapping portions of the flange contact portions can be reduced. Therefore, invasion of outside air from the gap in this portion can be prevented as much as possible, and the rust prevention effect can be further improved.

Further, according to the packing sheet of the present invention, even if a flange of another reel collides with the metal filament during the transportation process or handling, the metal filament is not damaged due to the protective effect of the packaging sheet. . Further, unlike a conventional rust-proof paper, there is almost no risk of breakage, and it is possible to prevent an accident in which the metal filament comes into contact with the outside air, and it is possible to reliably prevent oxidation (rust or discoloration) of the filament. In addition, it can be easily packed just by wrapping one sheet around the metal filament,
Since it can be easily unpacked, workability is greatly improved and it can be used repeatedly. Furthermore, with the recent seriousness of resource and environmental issues, conventional rust-proof paper has a short service life and increases waste disposal and incineration costs, whereas the rust-preventive sheet of the present invention can greatly extend the life, Resources can be saved and waste incineration costs can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view showing an embodiment of a packing sheet for a metal filament wound reel of the present invention.

FIG. 2 is a schematic explanatory view showing a use state of a packing sheet for a metal filament wound reel of the present invention.

FIG. 3 is a schematic partial sectional view of a metal wire winding reel using the metal wire packing sheet of the present invention.

FIG. 4 is a schematic explanatory view showing a conventional means for packing a metal filament.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Packing sheet 2 Metal strip covering part 3 Flange contact part 4, 5-sided fastener 6 Seam part 7 Slanted part B Bend formation part

Claims (7)

[Claims] 1. A sheet for packing a metal filament wound on a reel cylinder having flanges at both ends, wherein the metal filament is coated on both sides in a width direction of a metal filament covering part via a bent part. A packing sheet for a metal wire wound reel, characterized in that a flange contact portion that rises in a circumferential direction at a substantially uniform height and that presses against the inner surface of the flange with a restoring force is continuously provided. 2. The packing sheet for a metal wire wound reel according to claim 1, wherein the flange contact portion is thicker than the metal wire coated portion. 3. The packaging sheet according to claim 2, wherein the flange contact portion is formed by folding the sheet. 4. The sheet material is a fibrous material.
4. A packing sheet for a metal filament wound reel according to any one of items 1 to 3. 5. The packing sheet for a metal filament wound reel according to claim 1, wherein a hook-and-loop fastener is attached to each of the overlapping portions at both ends in the longitudinal direction of the packing sheet. 6. The metal wire body winding according to claim 5, wherein a sealing portion is provided in the same direction as the other surface fastener at the end of the lower overlapping portion of the both end overlapping portions in the longitudinal direction of the packing sheet. Packing sheet for reel. 7. The packing sheet for a metal filament wound reel according to claim 1, wherein a corner of at least one of both ends in the longitudinal direction of the sheet is slanted.