JPH0752968A - Sheet body for wrapping hollow object and method therefor - Google Patents

Abstract

PURPOSE:To securely, easily and rapidly fold a wrapping sheet body on both ends of a hollow object while making gathers uniform by adhering gather parts in advance which are formed by overlapping pleats when they are inserted into a hollow part of the object. CONSTITUTION:A sheet body formed of a plurality of pleats folded zigzag is pulled lengthwise to make a center 11 of the pleats flat, an outer peripheral face 1 of a hollow object is mounted on it to have the entire outer peripheral face 1 rolled in the center 11, and ends are adhered to each other. When the center 11 is stretched, a middle part 12 is naturally folded inward from a fold line 14 along an outer circumference of both end faces 2 by margins 17 for pasting which have been overlaid and pasted in a triangular shape. Then both ends 13 are folded inward along an inner circumference of both end faces 2 to have them inserted into a hollow part. Then overlaid ends 19 of both ends 13 are fixed to each other by hot melt or heat fusing, thereby completing a package.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging sheet and a packaging method for packaging a hollow article formed by winding a wire or the like.

[0002]

2. Description of the Related Art Conventionally, a paper sheet is used as a packaging sheet for packaging an article such as a tire having a hollow portion itself, or a hollow article having a hollow portion formed by winding a rubber hose, a wire, a strip-shaped sheet or the like in a coil shape. And there is gathering packaging by a rectangular sheet body integrally laminated synthetic resin film, after the packaging sheet body along the outer peripheral surface of the hollow article, the widthwise both ends of the packaging sheet body of the hollow article The packaging was completed by manually inserting it into the inner peripheral surface side while folding it into a gather shape, and finally adhering and fixing the overlapping portions of the both end portions.

[0003]

However, in the case of packaging a hollow article with the above-mentioned packaging sheet, it is not possible to reliably and easily fold both end portions of the hollow article, which not only complicates the packaging work. There is a defect that the folded state becomes non-uniform and the packaging appearance is poor.

For this reason, the hollow article is poorly packaged and sealed, and there is a problem that rust is caused by rainwater or the like particularly when a metal wire or the like is packaged by the above method.

The present invention has been made in view of the above-mentioned conventional problems, and when packaging a hollow article with a packaging sheet body, folding of the packaging sheet body at both end surface portions of the hollow article can be reliably and easily performed. A packaging sheet body for a hollow article having a hollow portion which can be performed at a very high speed, can improve the efficiency of the packaging work, and has a uniform gathered state, and can be packaged in a good state. It is an object to provide a packaging method using a sheet body.

[0006]

The present invention has been made to solve the above problems and takes the following technical means.

That is, the first means is the packaging sheet body, and the outer peripheral surface 1 and both end surfaces 2 of the hollow article B having the hollow portion 4
And a rectangular sheet body 5 that covers and wraps the inner peripheral surface 3.
In the packaging sheet body for a hollow article consisting of, the sheet body 5 has a plurality of folds 10 folded in a zigzag shape so as to be able to extend along the outer peripheral surface 1 of the hollow article B during packaging.
And the both end portions 13 and 13 of the fold portion 10 along the both end surfaces 2 and the inner peripheral surface 3 of the hollow article B.
It is characterized in that a gather portion 18 formed by superimposing between the fold portions 10 at the time of insertion is previously bonded so that the gather portion 18 is inserted into the hollow portion 4 of B.

A second means is a packaging method, which is formed by a plurality of zigzag-folded pleats 10, and a gather portion 18 formed by polymerization between the pleats 10 is pre-bonded. In the packaging sheet body of the hollow article, the sheet body 5 is wound around the outer peripheral surface 1 of the hollow article B while the fold portion 10 is extended to the central portion 11 of the sheet body 5, and both ends of the hollow article B are wound. The sheet body (5) is bent along the surface (2) and the inner peripheral surface (3), and then both ends (13, 13) of the pleats (10) are inserted into the hollow part (4) of the hollow article (B) for packaging. It is what

[0009]

The sheet body 5 according to the present invention is formed of a plurality of pleats 10 folded in a zigzag shape, and is formed on both end surfaces 2 and the inner peripheral surface 3 of the hollow article B of the sheet body 5. The outer diameter X of the hollow article B that is abutted and after packaging
And at least a part 20,21 of both end portions 13,13 of the gather portion 18 that are polymerized according to the difference between the inner diameter Y and the inner diameter Y are bonded to form the packaging sheet body A. When packaging the hollow article B, the hollow article B is formed while the central portion 11 of the fold portion 10 formed on the sheet body 5 is extended.
Just wrap it around the outer peripheral surface 1 of the
Since only 13 and 13 are adhesively fixed, the hollow article B
Due to the difference between the outer diameter X and the inner diameter Y of the
13,13 are bent inward according to the outer shape of the hollow article B.

Therefore, after that, both end portions 13 and 13 of the fold portion 10 will be described.
It is possible to easily cover both end surfaces 2 and the inner peripheral surface 3 of the hollow article B simply by inserting into the hollow portion 4 of the hollow article B by hand, and the gather portion 18 is evenly folded. Therefore, the folded state is very uniform and the packaging appearance is improved.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the packaging sheet A according to the present invention has an outer peripheral surface 1 having a width a and both end surfaces having a width b.
2 and a hollow article B having an inner peripheral surface 3 and having a hollow portion 4 in the center thereof, for example, an article having a hollow portion itself such as a tire, a rubber hose, a wire rod, a strip-shaped sheet, etc. It is composed of a rectangular sheet body 5 for packaging the article wound around.

As shown in FIG. 2 (a), the sheet body 5 has a paper 7 coated with a heat-sealable resin 6, a laminated synthetic resin film 6 and a paper 7, and a synthetic resin film. And laminated with non-woven fabric, or laminated with synthetic resin film and rustproof paper, as shown in Fig. (B), synthetic resin film 6 or waterproof paper, or a single layered body such as cloth, or the same figure. innermost layer ₆₁ as shown in (c), a multilayer film composed of the intermediate layer 6 _2, the outermost layer 6 ₃ etc. is appropriately employed, the raw fabric film A ₁
Is wound on a roll and the film A ₁ is fed by a feed roller to form a sheet body 5 below.

As the synthetic resin film 6, a plastic film such as polyethylene having heat sealability, or a plastic film such as polyester or nylon having heat shrinkability, heat resistance and strength is used, and particularly in the case of the above-mentioned multilayer film. , a film having heat sealability and moisture permeable waterproof innermost layer _61, a thin film of a film having a hygroscopic in the intermediate layer 6 _2, the outermost layer 6 ₃ good film waterproof and water repellent, respectively Preference is given to using.

For example, as shown in FIG. 3, a band-shaped original film A ₁ made of the above-mentioned material is provided with mountain fold lines 8 and valley fold lines 9 alternately in the longitudinal direction thereof. By folding the mountain fold line 8 and the valley fold line 9 in a zigzag manner, a plurality of pleats 10 are formed as shown in FIG. 4, and are formed so that they can be easily extended by hand. There is.

Original film A ₁ on which the pleats 10 are formed
Is cut to an appropriate length to form the sheet body 5, and therefore, before packaging (before use), it can always be folded in the zigzag shape and stored compactly, and it is very easy to handle even when carrying it. It will be easy.

Further, as shown in FIGS. 3 and 4, the sheet body 5 has a width a ′ substantially the same as the outer peripheral surface 1 of the hollow article B at the center in the width direction, and the outer peripheral surface 1 Central part 11 that covers
And intermediate portions 12, 12 having substantially the same width b ′ as both end faces 2 of the hollow article B at both ends thereof and covering the both end surfaces 2, and extending to the intermediate portion 12, the hollow article Both end portions 1 having a width c ′ that is approximately half that of the outer peripheral surface 1 of B and covering the inner peripheral surface 3
3,13 are provided, the central part 11 and the intermediate part 12,12 are at the first fold line 14,14, and the intermediate part 12,12 and both ends 13,13 are at the second fold line 15,15. , Are installed in series.

At the position where the mountain fold lines 8 of the both ends 13, 13 of the sheet body 5 are provided, the margin of margin surrounded by the boundary line 20 having a constant width with the mountain fold lines 8 as the center of line symmetry. At the position where the portion 16 is provided and the mountain fold line 8 of the intermediate portion 12, 12 is provided, a glue margin portion surrounded by a triangular boundary line 21 with the mountain fold line 8 as the center of line symmetry. When the folds 10 are provided, the glue margin portions 16 and 17 that are polymerized when the folds 10 are formed are adhered to each other by heat sealing or an adhesive as shown in FIGS. 18 is forming.

It should be noted that the width of the glue margin portion 16 and the overlapping width S corresponding to the bottom of the glue margin portion 17 having a substantially triangular shape are the outer circumference (outer diameter X) and the inner circumference (inner diameter) of the hollow article B. Y) Make it decided according to the difference.

That is, assuming that the distance between the mountain fold lines 8 is X ₁ , X ₂ , X ₃ ..., The width X ′ = X ₁ + X ₂ + X _{3 of the} sheet body 5 in the longitudinal direction.
..., which is approximately the same length as the outer diameter X of the hollow article B. At this time, assuming that the space between the adhesive margin portions 16 is Y ₁ , Y ₂ , Y ₃ ……, and the total of them, Y ₁ + Y ₂ + Y ₃ ……, is set to be substantially the same as the inner diameter Y. The width S = (X ₁ -Y ₁ ) / 2 can be easily determined.

Further, as shown in FIG. 5B, a synthetic resin film 6 having a heat-sealing property of the sheet body 5 is used as an innermost layer so that the glue margin portions 16 and 17 can be easily adhered to each other. Can be used as

Next, a method of actually packaging the hollow article B using the packaging sheet A having the zigzag shape as described above will be described.

First, when the sheet body 5 formed as described above is stretched by pulling it in the longitudinal direction, the central portion 11 of the fold portion 10 is not folded back and is in a flat state. Place it so that the outer peripheral surface 1 of B contacts, and as shown in FIG.
Then, the ends are bonded and fixed.

When the central portion 11 is extended, the intermediate portions 12, 12 are separated from the end faces 2 of the hollow article B by the first folding lines 14, 14 by the triangular shaped adhesive margin portion 17 bonded by polymerization. It is naturally bent inward along the circumference (outer diameter X).

After that, the both end portions 13 and 13 are connected to the second folding line.
From 15,15, the inner circumference of both ends 2 of hollow article B (inner diameter Y)
It is bent inward along and is pushed into the hollow portion 4 of the hollow article B by hand or a jig.

As shown in FIG. 8, the superposed end portions 19 of both end portions 13, 13 of the sheet body 5 inserted into the hollow portion 4 of the hollow article B are hot melted or heat welded. By fixing, the package as shown in FIG. 7 is completed.

At this time, for example, as shown in FIG.
By folding back one end portion 19 of the sheet body 5 having the heat-sealable synthetic resin film 6 or the like as the innermost layer so that the film 6 is exposed on the surface,
Adhesion between the overlapping portions of both end portions 13 and 13 inserted into the hollow portion 4 is very easily performed by heat sealing.

If the sheet body 5 to be used is made of a heat-shrinkable film, it may be finally heat-shrinked to complete a tightly held package. .

Although the hollow article B is wound around the sheet body 5 with the gather portion 18 on the front side in the above embodiment, the gather portion 18 is wound on the back side, that is, the gather portion 18 is in contact with the hollow article B. When mounted, as shown in FIG. 10, the border line 20 of the fixed size margin portion 16 and the border line 21 of the triangular shaped margin portion 17 are only on the front side. The appearance is also very good, and water and dust will not collect.

Therefore, for example, when transporting by ship, it may be necessary to carry out the loading work in the rain, and the gather part
When 18 is provided on the front side, water tends to collect in the gather portion 18, but it can be sufficiently prevented,
The hollow article is very well packaged and sealed, and particularly when a metal wire or the like is packaged, rust is not caused by rainwater or the like.

In the above case, the sheet body 5 is made of a water resistant plastic film 6 such as polyethylene.
It is preferable that the outer surface and the like are formed.

In addition, although an example in which the entire surfaces of the glue margin portions 16 and 17 are adhered has been described, the present invention is not limited to the above embodiment, and for example, the border lines 20 and 21 of the glue margin portions 16 and 17 are used. It may be a simple one that is sewn only with a sewing machine, line-sealed, or point-sealed.

Further, in the above embodiment, the sheet body 5
, The outer circumference (outer diameter X) and inner circumference (inner diameter Y) of the hollow article B
The first contact line 14, 14 and the second contact line 15, 15 have been provided in advance in the portion that abuts against.
14, 15 may be forcibly bent along the outer circumference (outer diameter X) and the inner circumference (inner diameter Y) of the hollow article B, even if it is not provided.

Similarly, the mountain fold line 8 and the valley fold line 9 may not be provided in particular, and the glue margin portions 16 and 17 or the boundary lines 20 and 21 may be polymer-bonded as appropriate.

The packaging sheet A according to the present invention is not limited to the above-mentioned embodiment, but may be made of an appropriate material depending on the type of the hollow article B, and may be hollow by appropriately using the front and back surfaces. It can be used for packaging of item B.

Further, the hollow article B is not limited to the above-mentioned shape. For example, when the hollow article has a long cylindrical shape, a tubular film body or the like is prepared separately,
The tubular film body may be inserted into the hollow portion of the hollow article B, and the end portions of both end portions of the sheet body may be bonded to the end portions of the tubular film body (not shown).

Also, in the case of a hollow article having a semicircular cross section as shown in FIG. 11 and an oval hollow article having a cross section as shown in FIG. 13, the outer peripheral surface 1 and the cotton 2 at both ends of the article are used. ,
Alternatively, since only the cotton 2 on both ends has a curved surface, as shown in FIGS. 12 and 14, depending on the shape, the glue from the second fold lines 15, 15 of the sheet body 5 to the central portion 11 Substitute
The shapes of 16, 16 are not limited to the triangular shape as in the above-mentioned embodiment, but can be changed.

As described above, the shapes of the glue margin portions 16 and 17 are appropriately changed according to the shape of the hollow article, and other constituent members are appropriately designed within the scope intended by the present invention depending on the application. Freedom.

[0039]

The packaging sheet body of the present invention comprises a sheet body main body formed of a plurality of zigzag-folded folds, and is in contact with both end surfaces and the inner peripheral surface of the hollow article of the sheet body main body. And, since the gathered portion which is polymerized in accordance with the difference between the outer diameter and the inner diameter of the hollow article after packaging is pre-bonded, the packaging sheet body, when packaging the hollow article, The gather portion is naturally bent inward along the outer periphery of the hollow article simply by winding the outer peripheral surface of the hollow article while extending the central portion of the fold portion of the sheet body.

Therefore, thereafter, both end surfaces and the inner peripheral surface of the hollow article can be easily covered only by inserting the both end portions of the fold into the hollow portion of the hollow article, and as a whole,
Hollow articles can be packaged with one touch and quickly.

Moreover, since the gathered portions are evenly folded, the folded state is very uniform and the packaging appearance is improved.

Further, when the hollow article is packaged with the gather portion of the sheet body being the back side, only the border line is on the front side, so that a tight packaging can be achieved as a whole and the appearance is very good. It is good for water and does not collect water or dust.

Further, since the packaging sheet body of the present invention is folded in a zigzag shape, it can be compactly folded and stored before use, and it is very easy to handle even when carrying it. .

[Brief description of drawings]

FIG. 1 is a perspective view of a hollow article according to the present invention.

FIG. 2 is a developed sectional view of a main part of the seat body.

FIG. 3 is a developed plan view of an essential part of the seat body.

FIG. 4 is a perspective view showing the assembly process of the sheet body.

5 (a) is a cross-sectional view taken along the line II of FIG.
(B) is a cross-sectional explanatory view and an enlarged view taken along line II-II of FIG. 4.

FIG. 6 is a perspective view showing one step of the packaging of the present invention.

FIG. 7 is a perspective view showing a completed packaging state of the present invention.

8 is a sectional view taken along line III-III of FIG.

FIG. 9 is a cross-sectional explanatory view of another main part of the same.

FIG. 10 is a perspective view showing another completed packaging state of the present invention.

FIG. 11 is a sectional perspective view of another hollow article according to the present invention.

FIG. 12 is a plan view of another main part of the seat body main body.

FIG. 13 is a sectional perspective view of another hollow article according to the present invention.

FIG. 14 is a plan view of another main part of the seat body main body.

[Explanation of symbols]

 1 outer peripheral surface 2 both end surfaces 3 inner peripheral surface 4 hollow portion 5 sheet body 10 pleated portion 13 both end portions of pleated portion 18 gather portion 20 border line 21 border line A packaging sheet body B hollow article

Claims (4)

[Claims] 1. A rectangular sheet body (5) for packaging the outer peripheral surface (1), both end surfaces (2) and inner peripheral surface (3) of a hollow article (B) having a hollow portion (4). In a packaging sheet body for a hollow article consisting of the sheet body (5),
(B) is formed from a plurality of folds (10) folded in a zigzag shape so that it can be extended along the outer peripheral surface (1), and both ends (13), (of the folds (10), 13) is inserted into the hollow part (4) of the hollow article (B) along both end faces (2) and the inner peripheral surface (3) of the hollow article (B) so that the pleats are inserted at the time of insertion. Department
A packaging sheet body for a hollow article, characterized in that a gather portion (18) formed by polymerization between (10) is previously bonded. 2. A plurality of folds folded in a zigzag shape.
The central portion of the sheet body (5) of the packaging sheet body of a hollow article formed from (10) and having gathered portions (18) formed by polymerization between the folds (10) adhered in advance ( 11) The outer peripheral surface of the hollow article (B) while extending the folds (10)
The sheet body (5) is wound around (1), and the sheet body (5) is bent along both end surfaces (2) and the inner peripheral surface (3) of the hollow article (B), Next, the hollow article (B) is packaged by inserting the both ends (13) and (13) of the pleats (10) into the hollow portion (4) and packaging the hollow article. 3. The method for wrapping a hollow article according to claim 2, wherein the gathering portion (18) of the sheet body (5) is placed on the back side. 4. The sheet body (5) sends out a belt-shaped original film (A ₁ ) and folds it in a zigzag pattern to form a plurality of folds (10), and the folds (10) of the folds (10). Mountain fold
The method for packaging a hollow article according to claim 2 or 3, wherein the overlapping parts (16) provided at both ends (13) and (13) of the part (8) are formed by bonding.