JP3080575U - Structure of coreless band coil for packing - Google Patents

Abstract

(57) [Problem] To prevent collapse of a coreless band coil for packing during transportation and packing. A part of an orthogonal portion (7) between a plurality of body winding bands (5) wound around a body portion of a coil body (2) and a band winding start end (4) is melt-temporarily attached (10).

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This invention relates to a coil structure of a coreless band for packaging.

[0002]

[Problems to be solved by the invention]

 Recently, there has been a tendency to use so-called non-core bands, in which the core of the packaging band has been removed due to demands for pollution prevention, but the number of windings of the non-core band has been reduced during transportation and packing. However, there is a drawback that the roll is likely to collapse from the inner peripheral portion. The object of the present invention is to provide a coreless band coil that eliminates the above-mentioned common drawbacks of the coreless band and facilitates transportation and packing.

[0003]

[Means for Solving the Problems]

 The present invention relates to a coreless coil body of a packing band made of a thermoplastic synthetic resin, in which three or four body-wound bands are radially wound around the body of the coil body at equal angular intervals, and a winding start end of the band coil is provided. And a part of the orthogonal portion of any of the above-mentioned body-wound bands is fusion-temporarily bonded. The number of body-wound bands can be selected as appropriate according to the size of the coil body and the width of the band, etc., but usually three are used. It is sufficient if the members are joined to such a strength that they can be easily peeled or separated by the band pulling force of the machine. Even with such strength, it is possible to prevent collapse during transport.

[0004]

[Embodiment of the invention]

 1 is a polypropylene band for packing having a width of about 15 mm, 2 is a coreless coil body, 3 is a winding start end, and 4 is a drawing end. Reference numeral 5 denotes an annular body-wound band wound around the body of the coil body, which is provided in a radial manner at equal angular intervals. Reference numeral 5A denotes a joined body winding band joined to the packing band 1, and 5B and 5C denote a wound body winding band. Reference numeral 6 denotes an inner peripheral portion of the body winding band, 7 denotes a rectangular orthogonal portion, 8 denotes a side portion, and 9 denotes an upper surface portion. Reference numeral 10 denotes a temporary attachment portion, which is melt-joined in a point shape as shown in FIGS. 3 and 4 by ultrasonic spot welding or a hot iron. Partial joining of the edge in FIG.

[0005] As shown in FIG. 5, the coil body of the present invention having the above-mentioned structure is fitted and loaded on the drum 12 of the band reel 11 of the packing machine, and is sandwiched between the pair of reel side plates 13. After loading, the upper surface of the body winding band is cut or cut off. When the band is consumed and the final state is reached, the body winding band 5A joined to the winding start end 4 is also drawn into the packing machine side, but is broken at the band introduction port of the packing machine (not shown) or the band path in the middle. And remains outside the machine together with the winding band 5B and 5C.

[0006] In the present invention, the scar remaining on the surface of the packing band is so small that there is no protrusion or deformed portion, so that there is no possibility that the band running path and other related mechanisms will be obstructed. In addition, the fused temporary bonding part of the present invention is point-shaped and has a small area, so that the molten part does not reach the band of the next layer.However, a thin sheet of thermosetting resin is inserted as a separator between the bands immediately below the orthogonal part. If they are joined together, they can be reliably prevented.

[0007]

[Effect of the invention]

 Although the band coil of the present invention is simple to manufacture, it can prevent the collapse during transportation and the collapse during packing and enjoy the advantages of the coreless band.

[Submission Date] April 17, 2001 (2001.4.1.17)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

[0005] As shown in FIG. 5, the coil body of the present invention having the above-mentioned structure is fitted and loaded on the drum 12 of the band reel 11 of the packing machine, and is sandwiched between the pair of reel side plates 13. After loading, the upper surface of the body winding band is cut or cut off. When the band is consumed and the final state is reached, the body winding band 5A joined to the winding start end 4 is also drawn into the packing machine side, but is handled at the band introduction opening of the packing machine (not shown) or the band route in the middle. And remains outside the machine together with the winding band 5B and 5C.

[Brief description of the drawings]

FIG. 1 is a side view of a band coil of the present invention.

FIG. 2 is a partially enlarged development view of the inner peripheral surface of the band coil.

FIG. 3 is an enlarged plan view of an orthogonal portion.

FIG. 4 is an enlarged plan view of another orthogonal portion.

FIG. 5 is a sectional view of a coil loaded on a reel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Packing band 2 Coreless coil body 3 Winding end part 4 Pull-out end part 5 Body winding band 5A Joining body winding band 6 Inner circumference part 7 Orthogonal part 8 Side part 9 Top surface part 10 Melt temporary attachment part

Claims (2)

[Utility model registration claims] In a coreless coil body of a packing band made of a thermoplastic synthetic resin, a body winding band is radially wound around a plurality of body portions of the coil body, and a winding start end of the coil body and any one of the above-mentioned ones. A structure of a coreless band coil for packaging formed by melting and temporarily attaching a part of an orthogonal portion of a body winding band. 2. The structure according to claim 1, wherein the temporary fusion bonding part is a part of the center or the edge of the orthogonal part.