JP5374256B2 - Manufacturing method of band-shaped member bundle - Google Patents

Description

The present invention relates to a method for manufacturing a band-shaped member bundle that is wound in a hollow cylindrical shape in order to transport a long band-shaped member that is wound spirally to form a rehabilitation pipe.

  In existing pipes that have deteriorated, a belt-shaped member is spirally wound to produce a rehabilitation pipe, and the inner peripheral surface is lined by the renovation pipe that has been produced. In such an existing pipe lining method, since the belt-shaped member is fed into the existing pipe, it is necessary to transport the long belt-shaped member to the construction site.

  The belt-shaped member is usually transported to the site while being wound around a transport drum. The transport drum around which the belt-shaped member is wound is configured by connecting a cylindrical body between the center portions of a pair of disk-shaped side plates, and a long belt-shaped member is wound around the body and set. When the belt-shaped member having a certain length is wound, the body is pulled out from the side plate in a state where the belt-shaped member is wound. The transport drum on which the belt-like member is wound is transported to the construction site and temporarily placed, and the belt-like member is drawn out from the inner peripheral side of the transport drum and fed into the existing pipe, and spirally formed in the existing pipe. By being wound, rehabilitation pipes are sequentially manufactured (see, for example, Patent Document 1).

  The length of the belt-like member wound around the transport drum is generally about 500 m to 2000 m, and the length of the rehabilitation pipe formed by the belt-like member of this length is about 2 m in diameter of the rehabilitation pipe. If it is about, it will be about 5-12 m. Therefore, when the lining length of the existing pipes is long, it is necessary to bring a large number of transport drums to the construction site.

  The transport drum is formed in a maximum length that can be transported by a truck or the like with a long strip-shaped member that can be transported at one time. Specifically, a transport drum having a side plate outer diameter of 3000 mm and a body length of about 1200 mm is often used. Therefore, if a large number of transport drums of this size are brought to the construction site and temporarily placed, traffic around the construction site may be congested or the pedestrian's passage may be blocked during the temporary placement period. is there.

  In order to avoid such a problem, if the transport drums are brought into the construction site one by one, a large space is required in another place as a place for temporarily storing the transport drums. In addition, in a factory where a belt-shaped member is manufactured and wound around a transport drum, it is necessary to store a large number of transport drums until it becomes necessary. If there is more consumption than the manufacturable length, there is a possibility that a shortage of the supply amount of the belt-shaped member may sometimes occur.

  In response to such a problem, the applicant is able to stably store and transport the hollow cylindrical belt-like member while reliably preventing the unrolling of the hollow cylindrical belt-like member without using a transport drum. And a manufacturing method for manufacturing a band-shaped member bundle using a manufacturing drum or a winding device is proposed (see, for example, Patent Document 2).

  In addition, as shown in FIG. 5, the strip | belt-shaped member 10 is formed by extrusion molding the synthetic resin which has flexibility, for example, hard vinyl chloride, polyethylene, a polypropylene. The belt-shaped member 10 is provided with a plurality of T-shaped reinforcing ribs 12 on the back surface of the belt-plate-like substrate 11, and the bonding convex portion 13 is erected on the back surface of one side edge of the substrate 11. In addition, a stepped portion 14 stepped down to the back side by the thickness of the substrate 11 is formed so that the side edge portion of the substrate 11 provided with the bonding convex portion 13 is disposed on the other side edge portion. The stepped portion 14 is provided with a joint concave portion 15 into which the joint convex portion 13 can be fitted. Further, the joint concave portion 15 is inclined so as to be positioned on the protruding side of the joint concave portion 15 as the distance from the substrate 11 increases. Ribs 16 are formed. Such a belt-like member 10 has a width w and a height h.

Japanese Patent No. 30223353 JP 2009-107723 A

  By the way, the jig | tool for construction of the strip | belt-shaped member binding body described in the cited reference 2 was formed by connecting a plurality of reinforcing bars radially between the outer ring and the inner ring at intervals in the circumferential direction. A plurality of connecting rods are detachably connected to the rotating body at intervals in the circumferential direction. Then, a band-shaped member bundle body in which the hollow cylindrical part is directed in the left-right direction is accommodated between the left and right rotating bodies, and a plurality of connecting rods are spaced in the circumferential direction across the left and right rotating bodies located on the outer peripheral side. I try to connect them.

  Therefore, in order to accommodate and support the band-shaped member bundle with respect to the construction jig, after connecting a plurality of connecting rods to the left and right rotating bodies over a half circumference, the band-shaped member bundle is lifted to rotate left and right. Drop into the space formed between the bodies and the multiple connecting rods, and align the multiple connecting rods on the left and right rotating bodies over the remaining half circumference to match the outer peripheral surface of the band-shaped member bundle housed in the left and right rotating bodies Need to be fixed.

  Here, as the belt-like member, ones having different widths and heights corresponding to the diameters of the existing pipes to be rehabilitated are used. Further, in the factory, the band-shaped member bundle is manufactured by winding and bundling the band-shaped member with a set winding length, for example, 1.0 km or 0.5 km.

  Therefore, when a band-shaped member bundle is manufactured using a production drum or a winding device, the outer diameter of the band-shaped member bundle varies depending on the type and winding length of the band-shaped member. For this reason, when the band-shaped member bundle is accommodated in the construction jig, the outer diameter of the band-shaped member bundle is measured in advance, and a plurality of connecting rods are adjusted between the left and right rotating bodies corresponding to the outer diameter. However, since it is necessary to connect them, the operation becomes complicated, and a lot of time is required for the accommodation operation. That is, in order to produce a rehabilitated pipe over a construction section, a large number of strip-shaped member bundles are required, so that one strip-shaped member is bound to a construction jig for a limited working time of one day. The ratio of the time required for the housing operation determined by the product of the time required to accommodate and support the body and the number of the band-like member bundles required increases, and the work time allocated to the pipe making is relatively reduced. There is a possibility that the pipe making work in the set construction section will be delayed.

The present invention has been made in view of such problems, and a method for manufacturing a band-shaped member bundle that can reduce the work time required to accommodate and support the band-shaped member bundle in a construction jig at a construction site. Is to provide.

Preparation of the belt-shaped member bundles of the present invention is accommodated in construction jig, outside the manufacturing method of the belt-shaped member bundling body supported, regardless of the length of the winding length of the belt-shaped member strip bundles The inner diameter of the band-shaped member bundle is calculated from the width and height of the band-shaped member, its winding length, and the width of the band-shaped member bundle so that the diameter is constant, and the winding core corresponds to the calculated inner diameter. After the outer diameter of the belt is adjusted , the belt-shaped member is wound around the winding core in order by the set winding length , and the wound hollow cylindrical belt-shaped member is bundled with a binding material to bind the belt-shaped member bundle having a constant outer diameter. It is characterized by manufacturing.

According to the present invention, the width and height of the band-shaped member, the winding length thereof, the width of the band- shaped member bundle so that the outer diameter of the band-shaped member bundle is constant regardless of the length of the belt-shaped member. From this, the inner diameter for forming the band-shaped member bundle with the set outer diameter is calculated. Then, after adjusting the outer diameter of the winding core in accordance with the calculated inner diameter, the band-shaped member is wound around the winding core in order by a set winding length to manufacture a band-shaped member bundle having a constant outer diameter.

  As a result, regardless of the winding length of the belt-like member, it is possible to produce a belt-like member bundle with a constant outer diameter, and when connecting the connecting rod to the left and right rotating bodies constituting the construction jig, It becomes possible to connect in advance to a position corresponding to the outer diameter of the band-shaped member bundle, and it is possible to shorten the work time required to house and support the band-shaped member bundle in the construction jig.

According to the method for manufacturing a band-shaped member bundle of the present invention, an existing facility is used for a band-shaped member bundle that can reduce the work time required to accommodate and support the band-shaped member bundle in a construction jig at a construction site. It can be manufactured using.

It is a front view shown with the jig | tool for construction which abbreviate | omitted a part of embodiment of the strip | belt-shaped member binding body manufactured by the manufacturing method of this invention. It is a perspective view which shows an example of a strip | belt-shaped member binding body with a construction jig. It is a perspective view which shows the strip | belt-shaped member binding body from which the internal diameter differs from the strip | belt-shaped member binding body of FIG. 2 with a construction jig. Is a perspective view showing the belt-shaped member bundles. It is sectional drawing which shows an example of a strip | belt-shaped member.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows an embodiment of a band-shaped member bundle 1 of the present invention together with a construction jig 5.

  This band-shaped member bundle 1 is formed in a hollow cylindrical shape by winding a band-shaped member 10 for producing a rehabilitated pipe for lining an aged existing pipe. As shown in FIG. The cushioning material 2 such as corrugated cardboard is wound around the outer peripheral surface, the inner peripheral surface, and the left and right side surfaces at intervals in the circumferential direction (in the embodiment, four locations at intervals of 90 degrees), It is formed by binding and binding a binding material 3 such as a string or a band around the buffer material 2.

  Thereby, since the strip | belt-shaped member binding body 1 is bundled in multiple places by the binding material 3 in the direction which cross | intersects the winding direction of the hollow cylindrical strip | belt-shaped member on which the strip | belt-shaped member 10 was wound, the strip | belt-shaped member 10 is bound. Can be surely prevented. Further, when the band-shaped member bundle 1 is stored vertically with the hollow cylindrical portion directed horizontally, it can be stably stored in an upright state.

When the band-like member bundle 10 is bound by the binder 2, the cardboard as a protective material is wound around the outer peripheral surface of the band-like member bundle 1 and fixed, and then the cardboard is prevented from being damaged by rainwater or the like. Therefore, after laminating the film and covering the outer peripheral surface and the left and right side surfaces of the band-shaped member bundle 1 with a light shielding sheet to prevent deterioration of the band-shaped member 10 due to ultraviolet rays, the hollow cylindrical portion is placed vertically in the horizontal direction. On the other hand, as shown in FIG. 1 to FIG. 3, the construction jig 5 for the band-shaped member bundle 1 is detachable between a pair of left and right rotating bodies 6 and 6 and these rotating bodies 6 and 6. It is composed of a plurality of connecting rods 7 that can be connected.

  Each rotating body 6 includes an inner ring 61, an outer ring 62, and a plurality of reinforcing bars 63 (eight in the drawing) that are radially connected between the inner ring 61 and the outer ring 62 in the circumferential direction. An attachment hole 63 a is formed in the reinforcing bar 63 in the vicinity of the outer peripheral ring 62.

  The connecting rod 7 is a rod-like body having the same structure with nuts (not shown) fixed at both ends, and the bolt 8 is screwed into the nut of the connecting rod 7 through the mounting hole 63a of the reinforcing bar 63 in the rotating body 6. The connecting rod 7 can be detachably connected to the rotating body 6.

  Here, the mounting hole 63a of the connecting rod 7 is formed at a position corresponding to a preset outer diameter of the band-shaped member bundle 1 as described later.

  The construction jig 5 configured as described above includes a plurality of bolts 8 inserted between the left and right rotating bodies 6 and 6 by inserting the bolts 8 through the mounting holes 63a of the corresponding reinforcing bars 63 in the left and right rotating bodies 6 and 6. Each of the connecting rods 7 is screwed into the nut of each of the connecting rods 7 and the connecting rods 7 are sequentially connected over the left and right rotating bodies 6 and 6.

  That is, when the band-shaped member bundle 1 is housed and supported in the construction jig 5, the plurality of connecting rods 7 are sequentially connected to the left and right rotating bodies 6 and 6 over a half circumference at intervals in the circumferential direction. The construction jig 1 is assembled in which the left and right rotating bodies 6 and 6 are connected to each other by a plurality of connecting rods 7 at intervals in the circumferential direction.

  In this case, if the right and left rotating bodies 6 and 6 are self-supporting and the strength to support the band-shaped member bundle 1 is ensured, the connecting rods 7 are not necessarily connected to the left and right rotating bodies 6 and 6 over a half circumference. It is not necessary to do so, and a plurality of connecting rods 7 may be connected at intervals in the circumferential direction over a range less than a half circumference.

  Next, the band-shaped member bundle 1 that has been transported to the construction site and unloaded on the ground with the hollow cylindrical portion oriented horizontally (the band-shaped member bundle 1 has the light-shielding sheet, film, and cardboard removed prior to transportation. The assembled construction jig 5 is brought close to the band-shaped member bundle 1 and the left and right rotating bodies 6 and 6 are opposed to the left and right side surfaces of the band-shaped member bundle 1 so as to be substantially continuous. Then, the construction jig 5 is rotated, and the band-shaped member bundle 1 is put through the half-circumferential portion where the connecting rod 7 is not connected. Next, the construction jig 5 is rotated together with the belt-like bundle 1 to house the belt-like member bundle 1 and hold the construction jig 5 in a state of being supported across a plurality of connecting rods 7. Then, between the connecting rods 7 separated by a half of the plurality of connecting rods 7 connected to the rotating bodies 6, 6, the bolts 8 pass through the mounting holes 63 a of the corresponding reinforcing bars 63 in the left and right rotating bodies 6, 6. Is inserted into the nuts of a plurality of connecting rods 7 arranged between the left and right rotating bodies 6, 6, and the connecting rod 7 is connected in order over the left and right rotating bodies 6, 6. As a result, the band-shaped member bundle 1 is accommodated in the construction jig 5 with the axial center substantially coincided, the outer peripheral surface thereof is supported by the plurality of connecting rods 7, and the left and right side surfaces thereof are rotated left and right. It is supported by the bodies 6 and 6.

  Next, the left and right rotating bodies 6 and 6 of the construction jig 5 that accommodates and supports the band-shaped member bundle 1 are placed on a turntable (not shown), the binding material 3 is cut, and the band-shaped member 10 is wound in the winding direction. After releasing the fixing in the intersecting direction, the winding start end portion of the belt-like member 10 is pulled out from the inner peripheral side of the hollow cylindrical belt-like member, and is drawn outward through the inner peripheral ring 61 of one rotating body 6. Thereby, the one end part of the strip | belt-shaped member 10 can be guide | induced into the existing pipe | tube through the manhole which is not shown in figure.

  By the way, although the band-shaped member bundle 1 described above is not shown in detail, it is manufactured using a manufacturing drum or a winding device.

In manufacturing the band-shaped member bundle 1, after adjusting the outer diameter of the winding core to the inner diameter obtained from the following equation, the band-shaped member 10 is sequentially set to the winding core having the adjusted outer diameter until reaching the set winding length. It rolls up. In particular,
W: Width Ri of band-shaped member bundle 1 Ri: Inner diameter Ro of band-shaped member bundle 1 Ro: Outer diameter of band-shaped member bundle 1 h: Height of band-shaped member 10 W: Width of band-shaped member 10 L: Winding of band-shaped member 10 Length P: Winding pitch (width w of strip member 10 + gap p between adjacent strip members 10 and 10)
N: If the total number of layers to be rolled up is
L (N): the winding length of the Nth layer counted from the innermost layer (first layer) = 2π · (Ri−h / 2 + Nh) · W / (w + p)
L (1 to N): Total winding length from the innermost layer (first layer) to the Nth layer = 2π · (Ri + h / 2) · W / (w + p) +... + 2π · (Ri−h) / 2 + Nh) ・ W / (w + p)
It becomes. And since all the strip | belt-shaped members 10 are rolled up by N layer winding, it is L (N-1) <L <L (N).

Also,
Since L (N) = 2π (Ro−h / 2) · W / (w + p),
The inner diameter Ri of the band-shaped member bundle 1 at this time is
Ri = Ro-Nh.

  Specifically, the winding length L of the band-shaped member 10 is 500 m, the width w of the band-shaped member 10 is 100 mm, the height h of the band-shaped member 10 is 20 mm, the width W of the band-shaped member bundle 1 is 1200 mm, and the band-shaped member bundle is formed. When the outer diameter R of 1 is 1000 mm and the winding pitch P is 120 mm, the number of layers of the belt-like member 10 to be wound is 9, and the inner diameter at that time is 820 mm.

  Therefore, although not shown in detail, when the belt-shaped member bundle 1 is manufactured by winding the belt-shaped member 10 on a winding drum capable of expanding and reducing the diameter as in a winding device, the diameter expansion position and the diameter reduction are performed. What is necessary is just to start winding by reducing a diameter of a winding drum to the outer diameter corresponding to the calculated | required internal diameter between positions.

  Further, like a manufacturing drum, a plurality of connecting rods are connected to the left and right rotating bodies at intervals in the circumferential direction to form a winding core, and the band-shaped member 10 is wound around the winding core to bind the band-shaped member. When the body 1 is manufactured, the connecting rod may be connected between the left and right rotating bodies so that the connecting rod is positioned at a position corresponding to the determined inner diameter. That is, since the slits are formed in each of the plurality of reinforcing bars that are radially connected between the outer ring and the inner ring in the left and right rotating bodies in the circumferential direction, Then, the connecting rod may be connected between the left and right rotating bodies so that the connecting rod is positioned at the outer diameter corresponding to the determined inner diameter, and winding may be started.

DESCRIPTION OF SYMBOLS 1 Band-shaped member binding body 2 Buffer material 3 Bundling material 5 Construction jig 10 Band-shaped member

Claims (1)

Housed in construction jig, the manufacturing method of the belt-shaped member bundling body supported, so that the outer diameter of the belt-shaped member bundles regardless of the length of the winding length of the belt-shaped member is constant, the width of the belt-shaped member After calculating the inner diameter of the band-shaped member bundle from the height, the winding length, the width of the band-shaped member bundle, and adjusting the outer diameter of the core to correspond to the calculated inner diameter, A band-shaped member bundle comprising a member having a constant outer diameter, wherein the members are wound in order by a set winding length , and the wound hollow cylindrical band-shaped member is bundled with a binding material. Manufacturing method.

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