JP2019202787A - Packing method of strip member and packed strip member - Google Patents

Abstract

To provide a packing method of a strip member suppressed in outward expansion of a cylindrical body of the strip member in the radial direction.SOLUTION: In a packing method S of a strip member for packing a cylindrical body of the strip member cylindrically formed by spirally winding the strip member, a film winding process S3 is performed in which a film is spirally wound on an outer peripheral surface of the cylindrical body of the strip member along the circumferential direction of the cylindrical body of the strip member, in such a manner that at least parts of adjacent films in the axial direction of the cylindrical body of the strip member overlap with each other in the radial direction of cylindrical body of the strip member.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a method for packing a band-shaped member and a packed band-shaped member.

  Conventionally, when buried pipes such as sewer pipes and agricultural water pipes have become obsolete, it has been widely practiced to rehabilitate the buried pipes using long strip members (for example, see Patent Documents 1 and 2). When the buried pipe is rehabilitated, the belt-like member is wound spirally in the buried pipe, and the joining portion of the belt-like member is joined to form a lining pipe.

JP 2017-1000080 A2 JP 2017-124941 A

In order to form a lining pipe having a larger outer diameter, a belt-like member having higher rigidity may be used. The strip-shaped member manufactured by extrusion molding or the like is stored in the state of a cylindrical strip-shaped member cylindrical body that is configured by spirally winding the strip-shaped member in a factory or the like in consideration of convenience during construction. The
However, if the rigidity of the belt-shaped member is high, the force that the belt-shaped member cylindrical body tries to spread outward in the radial direction becomes strong. In this case, the belt-like member of the belt-like member cylindrical body is loosened.

  This invention is made in view of such a problem, Comprising: The strip | belt-shaped member packing method which suppressed that a strip | belt-shaped member cylindrical body expanded toward the radial direction outer side, and a packed strip | belt-shaped member are provided. With the goal.

In order to solve the above problems, the present invention proposes the following means.
The band-shaped member packing method of the present invention is a band-shaped member packing method for packing a band-shaped member cylindrical body formed by spirally winding the band-shaped member, the outer circumferential surface of the band-shaped member cylindrical body Along the circumferential direction of the strip member cylindrical body, at least part of the films adjacent to each other in the axial direction of the strip member cylindrical body overlaps the radial direction of the strip member cylindrical body. It is characterized by performing a film winding process of winding spirally.

According to this invention, the films wound spirally around the outer peripheral surface of the band-shaped member cylindrical body and overlapped with each other in the radial direction of the band-shaped member cylindrical body are joined together by the self-adhesiveness of the film itself, for example. A film cylinder covering the outer peripheral surface of the belt-shaped member cylinder is configured. The self-adhesive film referred to here means a film having adhesiveness to the film itself without using an adhesive.
Since the film tubular body is disposed over the entire circumference of the belt-shaped member tubular body, the film wound around the outer peripheral surface of the belt-shaped member tubular body is integrated to hold the belt-shaped member tubular body over the entire circumference. The belt-like member tubular body can be prevented from spreading outward in the radial direction.

  Further, the packaged band-shaped member of the present invention includes a band-shaped member cylindrical body formed by spirally winding the band-shaped member, a film on the outer peripheral surface of the band-shaped member cylindrical body, and the band-shaped member cylindrical shape A film formed by spirally winding along the circumferential direction of the strip member cylindrical body so that at least a part of the films adjacent to each other in the axial direction of the body overlaps the radial direction of the strip member cylindrical body And a cylindrical body.

  According to this invention, the film cylindrical body is formed by spirally winding the film around the outer peripheral surface of the band-shaped member cylindrical body, and the films overlapped with each other in the radial direction of the band-shaped member cylindrical body are, for example, a film They are joined together by their own self-adhesiveness. Since the film tubular body is disposed over the entire circumference of the belt-shaped member tubular body, the film wound around the outer peripheral surface of the belt-shaped member tubular body is integrated to hold the belt-shaped member tubular body over the entire circumference. The belt-like member tubular body can be prevented from spreading outward in the radial direction.

Further, in the above-described method for packing the band-shaped member, the band-shaped member is annularly wound around the band-shaped member cylindrical body so as to pass through the outer peripheral surface side and the inner peripheral surface side of the band-shaped member cylindrical body, and the band-shaped member You may perform the bundling process which binds a member cylindrical body.
According to this invention, the shape of the strip-shaped member cylindrical body can be reliably held by the cylindrical shape.

Further, in the above-described packing method for the band-shaped member, before the bundling step, a buffer material arranging step of covering the end in the axial direction of the band-shaped member cylindrical body with a buffer material is performed. In the bundling step, The said linear member may be wound from the outer side of a material, and the said strip | belt-shaped member cylindrical body and the said buffer material may be bound.
According to this invention, when the band-shaped member cylindrical body is bound by the linear member, the end portion in the axial direction of the band-shaped member cylindrical body is formed by the linear member as compared with other portions of the band-shaped member cylindrical body. Receive strong power. By disposing the cushioning material between the strip member cylindrical body and the linear member, the force of the linear member is dispersed to act on the end portion of the strip member cylindrical body, and the end portion of the strip member cylindrical body Can be prevented from being damaged.

Moreover, in the packing method for the band-shaped member, in the binding step, the linear member may be wound at a plurality of positions in the circumferential direction of the band-shaped member cylindrical body to bind the band-shaped member cylindrical body. .
According to this invention, the shape of the strip-shaped member cylindrical body can be more securely held in a cylindrical shape.

Further, in the above-described method for packing a belt-shaped member, in the film winding step, the film may not be wound around the inner peripheral surface of the belt-shaped member cylindrical body.
According to the present invention, the strip-shaped member cylindrical body tends to spread outward in the radial direction of the strip-shaped member cylindrical body due to its own rigidity, so that the film does not have to be wound around the inner peripheral surface of the strip-shaped member cylindrical body. The shape of the belt-shaped member cylindrical body is held in a cylindrical shape. Therefore, the amount of work required to hold the shape of the belt-shaped member cylindrical body in a cylindrical shape can be reduced.

  According to the packing method of the band-shaped member and the packed band-shaped member of the present invention, it is possible to suppress the band-shaped member cylindrical body from spreading outward in the radial direction.

It is a perspective view which shows the packaged strip | belt-shaped member of one Embodiment of this invention. It is a side view of the packaged strip-shaped member. It is a figure which shows typically the principal part in the cross-sectional view of the strip-shaped member cylindrical body of the packaged strip-shaped member. It is a flowchart which shows the packing method of the strip | belt-shaped member of one Embodiment of this invention. It is a perspective view which shows an example of the winding apparatus used with the packaging method of the strip | belt-shaped member. It is sectional drawing which shows the principal part explaining the process of forming a lining pipe | tube by the same strip | belt-shaped member within a buried pipe.

Hereinafter, an embodiment of a packaged strip-shaped member according to the present invention will be described with reference to FIGS. 1 to 6.
As shown in FIGS. 1 and 2, the packaged belt-like member 1 of the present embodiment includes a belt-like member cylindrical body 2 and a packaging member 3.
As shown in FIG.1 and FIG.3, the strip | belt-shaped member cylindrical body 2 winds the strip | belt-shaped member 11 helically, and is comprised by the cylindrical shape as a whole. The term “spiral” as used herein refers to a spatial curve that can be generated when traveling on the outer peripheral surface of a cylinder while traveling at a constant speed in the axial direction of the cylinder.

The strip-shaped member 11 is formed long. For example, as shown in FIG. 3, the belt-like member 11 includes a base portion 12, an engaging portion 13, an engaged portion 14, and a reinforcing portion 15.
The base 12 is formed in a long flat plate shape.
The engaging portion 13 protrudes from the first end portion in the width direction of the base portion 12 toward one side in the thickness direction of the base portion 12. A columnar engagement member 13a is fixed to the tip of the engagement portion 13 in the direction in which the engagement portion 13 protrudes. The engaging member 13 a extends along the base portion 12.

The engaged portion 14 protrudes from the second end portion in the width direction of the base portion 12 toward the one side in the thickness direction of the base portion 12. The end of the semi-cylindrical engaged member 14a is fixed to the tip of the engaged portion 14 in the direction in which the engaged portion 14 protrudes. The engaged member 14a opens toward the other side in the thickness direction of the base 12 and is arranged so that the base 12 is not positioned in the direction in which the engaged member 14a opens. The engaged portion 14 extends along the base portion 12. The engaged member 14a can be attached to and detached from the outer peripheral surface of the engaging member 13a.
The base 12, the engaging portion 13, and the engaged portion 14 are integrally formed of a material having elasticity such as vinyl chloride resin.

The reinforcement part 15 is formed, for example with metals, such as stainless steel. The rigidity of the reinforcing part 15 is higher than the rigidity of the base part 12 and the like. The reinforcing portion 15 is fixed to the one side surface of the base portion 12.
In addition, the structure of the strip | belt-shaped member 11 is not limited to this. The reinforcing portion 15 is provided on the surface on the back side of the base portion 12, but may be embedded in the base portion 12. Examples of the cross-sectional shape of the reinforcing portion 15 include a plate shape, a square shape, a W shape, or a convex shape.

  Below, the radial direction of the strip-shaped member cylindrical body 2 configured in a cylindrical shape is simply referred to as a radial direction. A direction along the axis (center axis) C of the strip member cylindrical body 2 is simply referred to as an axis C direction, and a direction around the axis C of the strip member cylindrical body 2 is referred to as a circumferential direction.

The band-shaped member cylindrical body 2 is configured by, for example, arranging a first cylindrical body 18 and a second cylindrical body 19 that are configured by spirally winding the band-shaped member 11 and overlapping each other in the coaxial and radial directions. Yes. The inner diameter of the second cylindrical body 19 is not less than the outer diameter of the first cylindrical body 18. The second cylindrical body 19 is disposed on the radially outer side of the first cylindrical body 18. The strip-shaped member cylindrical body 2 is configured by overlapping two cylindrical bodies in the radial direction.
The configuration of the belt-shaped member cylindrical body is not particularly limited, and the belt-shaped member cylindrical body may be configured by one cylindrical body or configured by overlapping three or more cylindrical bodies in the radial direction. May be.

In the first cylindrical body 18, the engagement member 13 a of one belt-like member 11 and the engaged member 14 a of the other belt-like member 11 are engaged with each other among a pair of belt-like members 11 adjacent to each other in the axis C direction. Not done. The same applies to the second cylindrical body 19. Thus, the strip-shaped member cylindrical body 2 is so-called aligned winding.
As shown in FIGS. 1 and 2, a through hole 11 a penetrating the belt-like member 11 (base portion 12) is formed at the longitudinal end of the belt-like member 11.

The packing member 3 is for packing the strip-shaped member cylindrical body 2. The packaging member 3 includes a film cylindrical body 26, a buffer material 27, a binding band (linear member) 28, and a rope 29.
As shown in FIGS. 1 to 3, the film cylindrical body 26 is configured by winding a film 32 around the outer peripheral surface of the band-shaped member cylindrical body 2 in a spiral shape along the circumferential direction. The film 32 is disposed on the radially outer side of the second tubular body 19 of the strip-shaped member tubular body 2, and is not disposed between the second tubular body 19 and the first tubular body 18. The film cylindrical body 26 is preferably wound around the outer peripheral surface of the band-shaped member cylindrical body 2 by five or more rounds.

The film 32 has self-adhesiveness. For example, a stretch film can be used as the film 32. A laminated film including a release substrate, a self-adhesive layer, and a surface layer may be used as the film 32. The film 32 is preferably formed of an olefinic synthetic resin such as polyethylene or polypropylene. The film 32 may be formed of vinyl chloride resin, vinylidene chloride resin, or the like. The adhesive strength of the film 32 may be appropriately selected so that the strip-shaped member cylindrical body 2 is not unwound, but a width of 0.01 to 2.0 N / mm is preferable.
The color of the film 32 is preferably transparent.

As shown in FIG. 3, the film 32 is arranged so that at least a part of the 32 films adjacent in the direction of the axis C overlaps in the radial direction. It is preferable that the films 32 adjacent to each other in the axis C direction overlap with each other by a half or more of the width of the film 32 (length in the axis C direction). For example, when the width of the film 32 is 500 mm, the overlapping length is preferably 250 mm or more.
As shown in FIGS. 1 and 2, the film cylindrical body 26 is wound around the central portion in the direction of the axis C on the outer peripheral surface of the band-shaped member cylindrical body 2. The film cylindrical body 26 is not wound around the end portion in the axis C direction on the outer peripheral surface of the strip-shaped member cylindrical body 2 and the inner peripheral surface of the strip-shaped member cylindrical body 2.

The buffer material 27 is formed, for example, by bending a resin sheet such as polyethylene into a U shape. The buffer material 27 is formed by bending a sheet having a width of 150 mm and a length of 700 mm, for example. The width of the buffer material 27 is preferably wider than the width of the binding band 28.
The shock absorbing material 27 has covered the edge part of the axis line C direction of the strip | belt-shaped member cylindrical body 2, respectively. The buffer material 27 is arranged so as to sandwich the outer peripheral surface and the inner peripheral surface of the strip-shaped member cylindrical body 2 in the radial direction. The buffer material 27 may sandwich not only the belt-shaped member cylindrical body 2 but also the end in the axis C direction of the film cylindrical body 26 in the radial direction.
A plurality (four in this embodiment) of the cushioning material 27 are arranged in the circumferential direction. The plurality of buffer materials 27 are arranged around the axis C at equal angles. That is, the plurality of cushioning materials 27 are arranged in the so-called 12 o'clock direction, 3 o'clock direction, 6 o'clock direction, and 9 o'clock direction, respectively.

The binding band 28 is wound around the belt-shaped member cylindrical body 2 in an annular shape so as to pass through the outer peripheral surface side and the inner peripheral surface side of the belt-shaped member cylindrical body 2. The binding band 28 is wound from the outside of the cushioning material 27 and binds the band-shaped member cylindrical body 2 and the cushioning material 27. A plurality of binding bands 28 (four in the present embodiment) are arranged in the circumferential direction corresponding to the buffer material 27.
The rope 29 is fixed to the end of the band-shaped member 11 by being inserted into the through hole 11 a of the band-shaped member 11 and tied to the end of the band-shaped member 11. The rope 29 is fixed to the end portion of the strip-shaped member cylindrical body 2 by being wound around the end portion in the axis C direction of the strip-shaped member cylindrical body 2.

Next, a method for packing the band-shaped member for packing the band-shaped member cylindrical body 2 (hereinafter also simply referred to as a packing method) will be described. FIG. 4 is a flowchart showing the packing method S.
First, in the end fixing step (step S1 shown in FIG. 4), as shown in FIGS. 1 and 2, the rope 29 is inserted into the through hole 11a of the strip member 11 and tied to the end of the strip member 11, It is fixed to the end of the member 11. The rope 29 is wound around the end in the axis C direction of the strip-shaped member cylindrical body 2 and is held so that the end of the strip-shaped member 11 does not spread outward in the radial direction.
In addition, you may perform edge part fixing process S1 after the shock absorbing material arrangement | positioning process S3 mentioned later.

  Next, in the film winding step (step S <b> 3), the film 32 is spirally wound around the outer peripheral surface of the strip-shaped member cylindrical body 2 along the circumferential direction. At this time, at least a part of the films 32 adjacent to each other in the axis C direction is overlapped in the radial direction. In addition, in film winding process S3, the film 32 is not wound around the internal peripheral surface of the strip | belt-shaped member cylindrical body 2. FIG.

In the film winding step S3, for example, a winding device 41 shown in FIG. 5 is used. The winding device 41 includes a support unit 42, a drive unit 43, and a film supply unit 44. The support portion 42 supports the belt-shaped member cylindrical body 2 so as to be rotatable around the axis C. The drive unit 43 rotates the belt-shaped member cylindrical body 2 around the axis C. The film supply unit 44 holds the roll film 32.
While the leading end of the film 32 is attached to the end of the outer peripheral surface of the strip-shaped member cylindrical body 2 in the direction of the axis C, the drive unit 43 rotates the strip-shaped member cylindrical body 2 around the axis C while supporting the support 42. In contrast, the film supply unit 44 is moved in the direction of the axis C. Then, the film 32 is spirally wound around the outer peripheral surface of the strip-shaped member cylindrical body 2 along the circumferential direction.
When the film winding step S3 ends, the process proceeds to step S5.

Next, in the buffer material arranging step (step S5), as shown in FIGS. 1 and 2, both end portions in the direction of the axis C of the band-shaped member cylindrical body 2 are covered with the buffer material 27. At this time, the outer peripheral surface and the inner peripheral surface of the strip-shaped tubular member 2 are sandwiched in the radial direction by the buffer material 27. In this example, the buffer material 27 is arranged at a plurality of positions in the circumferential direction.
This buffer material arrangement | positioning process S5 is performed before the bundling process S7 mentioned later.

Next, in the bundling step (step S7), the bundling band 28 is wound from above the buffer material 27 to bind the band-shaped member cylindrical body 2 and the buffer material 27 together. In the binding step S <b> 7, the binding band 28 is wound around the belt-shaped member cylindrical body 2 on the plane including the axis C.
In this example, in correspondence with the buffer material 27, the binding band 28 is annularly wound at a plurality of positions in the circumferential direction to bind the band-shaped member cylindrical body 2 and the buffer material 27.

  With the above, all the steps of the packing method S are completed, and the belt-shaped member cylindrical body 2 is packed with the packing member 3.

The strip-shaped member cylindrical body 2 packed as described above is transported to a rehabilitation construction site and set on a turntable (not shown). The binding band 28, the buffer material 27, the film cylindrical body 26, and the rope 29 are removed from the band-shaped member cylindrical body 2.
The band-shaped member 11 is unwound from the band-shaped member cylindrical body 2 while rotating the band-shaped member cylindrical body 2 on the turntable.
As shown in FIG. 6, the belt-like member 11 is spirally wound around the aged buried pipe P1. Of the pair of belt-like members 11 adjacent to each other in the axial direction of the buried pipe P1, the engagement member 13a of one belt-like member 11 and the engaged member 14a of the other belt-like member 11 are engaged. A pair of belt-like members 11 adjacent in the axial direction are appropriately joined together to form a lining pipe P2.
Thus, the buried pipe P1 is rehabilitated.

  As described above, according to the packing method S of the present embodiment, the films 32 wound spirally around the outer peripheral surface of the band-shaped member cylindrical body 2 and overlapped in the radial direction are joined to each other by self-adhesiveness. Thus, the film cylindrical body 26 covering the outer peripheral surface of the strip-shaped member cylindrical body 2 is configured. Since the film cylindrical body 26 is arranged over the entire circumference of the band-shaped member cylindrical body 2, the film 32 wound around the outer peripheral surface of the band-shaped member cylindrical body 2 is integrated with the belt-shaped member cylindrical shape over the entire circumference. It is possible to hold the body 2 and prevent the belt-shaped member cylindrical body 2 from spreading outward in the radial direction.

Since the bundling process S7 is performed in the packing method S, the shape of the belt-shaped member cylindrical body 2 can be reliably held in a cylindrical shape.
Before the binding step S7, the cushioning material arrangement step S5 is performed, and the binding band 28 is wound from the outside of the cushioning material 27 in the binding step S7. When the band-shaped member cylindrical body 2 is bound by the binding band 28, the end of the band-shaped member cylindrical body 2 in the direction of the axis C is stronger than the other part of the band-shaped member cylindrical body 2. Receive. By disposing the buffer material 27 between the band-shaped member cylindrical body 2 and the binding band 28, the force generated by the binding band 28 is dispersed and applied to the end portion of the band-shaped member cylindrical body 2. It is possible to suppress damage to the end portions of the two.

In the binding step S7, the binding band 28 is wound annularly at a plurality of positions in the circumferential direction. For this reason, the shape of the strip-shaped member cylindrical body 2 can be more securely held in a cylindrical shape.
In the film winding step S <b> 3, the film 32 is not wound around the inner peripheral surface of the strip-shaped member cylindrical body 2. Since the band-shaped member cylindrical body 2 tends to spread outward in the radial direction due to its own rigidity, the shape of the band-shaped member cylindrical body 2 can be obtained without winding the film 32 around the inner peripheral surface of the band-shaped member cylindrical body 2. Is held in a cylindrical shape. Therefore, the amount of work required to hold the shape of the belt-shaped member cylindrical body 2 in a cylindrical shape can be reduced.

  In addition, according to the packing method S of the present embodiment, the film cylindrical body 26 is configured by the film 32 being spirally wound around the outer peripheral surface of the strip-shaped member cylindrical body 2, and the films that overlap each other in the radial direction. 32 are mutually joined by self-adhesiveness. Since the film cylindrical body 26 is arranged over the entire circumference of the band-shaped member cylindrical body 2, the film 32 wound around the outer peripheral surface of the band-shaped member cylindrical body 2 is integrated with the belt-shaped member cylindrical shape over the entire circumference. It is possible to hold the body 2 and prevent the belt-shaped member cylindrical body 2 from spreading outward in the radial direction.

As mentioned above, although one embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and modifications, combinations, and deletions within a scope not departing from the gist of the present invention Etc. are also included.
For example, in the packing method S of the embodiment, the cushioning material 27 may be disposed at one place in the circumferential direction of the strip-shaped member cylindrical body 2 in the cushioning material arranging step S5. In this case, in the binding step S <b> 7, the binding band 28 is wound at one place in the circumferential direction of the band-shaped member cylindrical body 2.
In the packing method S, the cushioning material arrangement step S5 may not be performed. In this case, in the bundling step, the band-shaped member 11 of the band-shaped member cylindrical body 2 is bound by winding the band 28 directly around the band-shaped member cylindrical body 2 in an annular shape.
In the packing method S, the end fixing step S1 and the bundling step S7 may not be performed.

In the embodiment, the linear member is the binding band 28, but the linear member is not limited thereto, and may be a wire, a rope, or the like.
Although the shape of the band-shaped member cylindrical body 2 is cylindrical, the shape of the band-shaped member cylindrical body 2 is not limited thereto, and may be a cylindrical shape such as an ellipse or a polygon.

DESCRIPTION OF SYMBOLS 1 Packed strip | belt-shaped member 2 Strip | belt-shaped member cylindrical body 11 Band-shaped member 26 Film cylindrical body 27 Buffer material 28 Binding band (linear member)
32 Film C Axis S Packing method (Packing method for band-shaped member)
S3 Film winding process S5 Buffer material arrangement process S7 Bundling process

Claims (6)

A band-shaped member packing method for packing a band-shaped member tubular body configured in a cylindrical shape by spirally winding a band-shaped member,
A film is placed on the outer peripheral surface of the belt-like member tubular body, and the belt-like member is arranged such that at least a part of the films adjacent to each other in the axial direction of the belt-like member tubular body overlaps the radial direction of the belt-like member tubular body. A method for packing a band-shaped member that performs a film winding step of spirally winding along a circumferential direction of a cylindrical body.   A bundling process is performed in which a linear member is wound around the belt-like member tubular body in an annular manner so as to pass through the outer peripheral surface side and the inner peripheral surface side of the belt-like member tubular body, and the belt-like member tubular body is bound. The packing method of the strip | belt-shaped member of Claim 1. Before the bundling step, a cushioning material arranging step of covering the axial end of the strip member cylindrical body with a cushioning material is performed,
The method for packing a belt-like member according to claim 2, wherein, in the binding step, the linear member is wound from the outside of the shock-absorbing material to bind the belt-like member cylindrical body and the shock-absorbing material.   The method for packing a band-shaped member according to claim 2 or 3, wherein, in the binding step, the band-shaped member cylindrical body is bound by winding the linear member at a plurality of positions in the circumferential direction of the band-shaped member cylindrical body.   The method for packing a belt-shaped member according to any one of claims 1 to 4, wherein, in the film winding step, the film is not wound around an inner peripheral surface of the belt-shaped member cylindrical body. A belt-shaped member cylindrical body formed by spirally winding a belt-shaped member,
A film is placed on the outer peripheral surface of the belt-like member tubular body, and the belt-like member is arranged such that at least a part of the films adjacent to each other in the axial direction of the belt-like member tubular body overlaps the radial direction of the belt-like member tubular body. A film tubular body configured by spirally winding along the circumferential direction of the tubular body,
Packed belt-like member comprising

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