JP5358156B2 - Rehabilitated pipe production apparatus and rehabilitated pipe production method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a molding frame of pipe-making device capable of protecting worker's fingers from being pinched, preventing damage to linking bodies as much as possible and regulating turning which exceeds a set angle range. <P>SOLUTION: The molding frame 2 constituting the pipe-making device 1 is formed substantially annular by connecting a plurality of linking bodies 21 in sequence rotatably connected each other with an inner link frame 22 and with an outer link frame 23 via a connecting shaft 24. Stoppers 233, 224 which can collide each other are arranged at the outer face of the inner link frame 22 and at the inner face of the outer link frame 23, respectively. Therefore, the turning around the connecting shaft 24 between the outer link frame 23 and the inner link frame 22 of each linking body 21 can be regulated within a set angle range until the stoppers 233, 224 collide. The worker's fingers can be surely protected from being pinched since the stoppers 233, 224 are arranged at the other side which does not expose to the surface side. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a rehabilitating pipe producing apparatus for rehabilitating a rehabilitating pipe for rehabilitating an existing pipe such as an aged sewer pipe, a water sewer pipe, an agricultural water pipe, a gas pipe, etc., and a rehabilitating pipe using the pipe making apparatus. This relates to the pipe making method.

  Conventionally, in order to rehabilitate an aged existing pipe, supply a band-shaped member with joints formed on both side edges, join the joints of adjacent band-shaped members together to produce a renovated pipe, It has been practiced to supply a new strip member to the rehabilitation pipe and additionally form the rehabilitation pipe in the axial direction of the existing pipe. For example, as described in Patent Document 1, a drum around which a belt-shaped member is wound is installed on the ground, and a pipe-making device is arranged in an existing pipe, and the belt-like member is supplied from the drum to the pipe-making device in the existing pipe. , Rotate the pipe making device around the axis of the existing pipe, join the joints of the adjacent belt-like members together to make a renovated pipe, and add a new belt-like member to the renovated pipe that was piped without rotating The rehabilitation pipe is additionally formed in the axial direction of the existing pipe by supplying.

  This pipe making apparatus includes a forming frame formed in a substantially annular shape by connecting a plurality of link bodies in which a pair of link members are rotatably connected via a connecting shaft, and a connecting shaft for each link body of the forming frame. A plurality of guide rollers that are rotatably supported on each other, and a joining mechanism that is provided on the molding frame and that has an inner surface roller and an outer surface roller and joins the side edges of adjacent strip members. .

Further, as described in Patent Document 2, a pipe making device is arranged in a manhole, a belt-like member is supplied from a drum to the pipe making device in the manhole, and the joint portions of adjacent belt-like members are joined to regenerate. Pipes are manufactured and fed into the axial direction of the existing pipe while rotating the renovated pipe, and a strip member is newly supplied to the renovated pipe to form a renovated pipe. This pipe making apparatus is also configured by providing the above-described forming frame, guide roller, and joining mechanism on a support frame.
Japanese Patent No. 3035466 Japanese Patent Publication No. 7-37064

  By the way, in a pair of link member which constitutes each link object of a forming frame mentioned above, while providing a rotation regulation piece in the outer surface of an inner link member, a notch part corresponding to a rotation regulation piece is provided in an outer link member. The rotation angle of the outer link member with respect to the inner link member is restricted to the set angle range of the notch that collides with the rotation restricting piece. This prevents the pair of link members of the link body from turning and bending inward or outward beyond the set angle.

Therefore, when assembling or disassembling the molding frame, when the operator grasps the molding frame and the operator's finger is between the rotation restricting piece and the cutout portion, the pair of link members of the link body are rotated around the connecting shaft. There is a risk that the finger will be jammed. Moreover, in order to ensure the intensity | strength of the link member around a connection shaft, it is necessary to form a notch part with a fixed distance between the insertion holes which penetrate a connection shaft. Therefore, since the inner surface of the notch and the rotation restricting piece collide with each other on the outer periphery with a certain distance ensuring the strength of the link member from the inner peripheral edge of the insertion hole, a large rotational moment is generated and the notch or There was a fault that the rotation restricting piece was easily damaged or deformed.

  The present invention has been made in view of such problems, and can reliably prevent the operator from squeezing the finger, while preventing damage to the link body as much as possible and exceeding the set angle range. It is an object of the present invention to provide a rehabilitating pipe manufacturing apparatus having a molded frame that can regulate movement.

  In addition, it is possible to manufacture a rehabilitating pipe having a molded frame that can reliably prevent the operator's finger-filling and that can prevent the link body from being damaged as much as possible and restrict the rotation beyond the set angle range. The present invention provides a method for producing a rehabilitated pipe that can produce a rehabilitated pipe of an existing pipe using a pipe device.

The pipe for rehabilitating pipe according to the present invention supplies a belt-like member having joints formed on both side edges, joins the joints of adjacent belt-like members together to produce a rehabilitated pipe, and rehabilitation pipe. A rehabilitating pipe forming apparatus for newly supplying a strip-shaped member to form a rehabilitating pipe in the axial direction of the existing pipe, wherein the inner link frame and the outer link frame are connected to the connecting shaft. A plurality of link bodies that are connected to each other via a plurality of links, and a plurality of guides that are rotatably supported on a connecting shaft of each link body of the forming frame. A roller, and a joining mechanism that has a tube-forming roller and a drive roller and joins the joining portions of adjacent band-shaped members to each other, and has an inner diameter larger than the outer diameter of the connecting shaft on the outer surface of the inner link frame. Outside larger than the inside diameter A ring-shaped stopper over the set angle range is provided, and an inner surface of the outer link frame has an inner diameter and an outer diameter of the stopper of the inner link frame, and a ring-shaped stopper over the set angle range is provided inside. It is provided on the side facing the stopper of the side link frame and the center of the connecting shaft, and the rotation of the outer link frame around the connecting shaft with respect to the inner link frame is restricted to a set angle range until the stoppers collide with each other. .

According to the present invention, a belt-like member having joints formed on both side edges is supplied, the joints of adjacent belt-like members are joined to each other to produce a rehabilitation pipe, and a new belt-like member is added to the rehabilitation pipe. In a rehabilitating pipe manufacturing apparatus in which a rehabilitating pipe is additionally formed in the axial direction of an existing pipe, an outer link frame and an inner link frame are connected via a connecting shaft. A plurality of link bodies that are rotatably connected to each other are connected in order to form a substantially annular shape. Further, an inner diameter of the outer link frame of each link body is provided with an inner diameter larger than the outer diameter of the connecting shaft and an outer diameter larger than the inner diameter, and provided with a ring-shaped stopper over a set angle range, and the inner link A ring-shaped stopper having an inner diameter and an outer diameter of the stopper of the outer link frame on the outer surface of the frame and extending over a set angle range is provided on the side facing the stopper of the inner link frame and the center of the connecting shaft .

As a result, the rotation of each link body around the connecting shaft of the outer link frame and the inner link frame is restricted to a set angle range until the stoppers collide with each other, thereby preventing inward or outward bending reliably. can do. Moreover, by providing the stopper on the inner surface of the outer link frame and the outer surface of the inner link frame that are not exposed on the surface side, the operator's finger grasping the link body when assembling or disassembling the molding frame. Can be reliably prevented from being pinched by the stopper. In addition, since the stopper can be provided with a slight gap that does not contact the outer peripheral surface of the connecting shaft, the rotational radius of the stopper can be made as small as possible to reduce the rotational moment due to the collision between the stoppers. It is possible to prevent damage to the stopper and thus the link frame.

  In the present invention, the forming frame provided with the guide roller and the joining mechanism may be provided on the support frame.

  According to another aspect of the present invention, there is provided a method for producing a rehabilitated pipe. The pipe producing apparatus according to claim 1 is arranged in an existing pipe, and a strip-like member having joints formed on both side edges is supplied to the joining mechanism of the pipe producing apparatus. Rotate the pipe making device around the axis of the existing pipe to join the adjacent joints together to make a renovated pipe, and supply a new belt-like member to the renovated pipe made without rotation The rehabilitation pipe is additionally formed.

  According to the present invention, the pipe manufacturing apparatus according to claim 1 is arranged in an existing pipe, and a strip-like member having joints formed on both side edges is supplied to the joining mechanism of the pipe manufacturing apparatus. Then, the pipe making device is rotated around the axis of the existing pipe to join adjacent joints together to produce a renovated pipe, and a new strip member is supplied to the renovated pipe produced without rotation. Then, the rehabilitation pipe is additionally formed in the axial direction of the existing pipe.

  As a result, at the time of pipe production of rehabilitated pipes, the rotation of the outer link frame and the inner link frame of each link body around the connecting shaft is restricted to a set angle range until the stoppers collide with each other. It is possible to reliably prevent outward bending. In addition, it is possible to reliably prevent the operator's fingers from being pinched by the stopper, and it is possible to manufacture the rehabilitating tube while preventing damage to the stopper and thus the link frame.

  According to another aspect of the present invention, there is provided a method for producing a rehabilitated pipe. The pipe producing apparatus according to claim 1 is disposed in a manhole, and a belt-like member having joints formed on both side edges is supplied to the joining mechanism of the pipe producing apparatus. Rotate the pipe making device around the axis of the existing pipe to join the adjacent joints together to make a renovated pipe, and supply a new belt-like member to the renovated pipe made without rotation The rehabilitation pipe is additionally formed, and the rehabilitated pipe thus produced is pulled in the direction opposite to the direction of the additional formation of the rehabilitation pipe and carried into the existing pipe.

  According to the present invention, the pipe manufacturing apparatus according to claim 1 is disposed in a manhole, and a strip-shaped member having joints formed on both side edges is supplied to the joining mechanism of the pipe manufacturing apparatus. Then, the pipe making apparatus is rotated around the axis of the existing pipe to join adjacent joints together to produce a renovated pipe, and a new strip member is supplied to the renovated pipe produced without rotation. The rehabilitated pipe is additionally formed in the axial direction of the existing pipe, while the rehabilitated pipe is pulled in the direction opposite to the additional forming direction of the rehabilitated pipe and carried into the existing pipe.

  As a result, at the time of pipe production of rehabilitated pipes, the rotation of the outer link frame and the inner link frame of each link body around the connecting shaft is restricted to a set angle range until the stoppers collide with each other. It is possible to reliably prevent outward bending. In addition, it is possible to reliably prevent the operator's fingers from being pinched by the stopper, and it is possible to manufacture the rehabilitating tube while preventing damage to the stopper and thus the link frame.

  A pipe manufacturing method for a rehabilitated pipe according to the present invention is provided by arranging the pipe manufacturing apparatus according to claim 2 in a manhole, and supplying a band-shaped member having joints formed on both side edges to the joining mechanism of the pipe manufacturing apparatus, Adjacent joints are joined together to produce a rehabilitated pipe, and the regenerated pipe is fed while rotating, and a new strip member is supplied to the regenerated pipe that has been rotated and regenerated. Is added.

  According to the present invention, the pipe manufacturing apparatus according to claim 2 is disposed in the manhole, and a strip-like member having joints formed on both side edges is supplied to the joining mechanism of the pipe manufacturing apparatus. Adjacent joints are joined together to produce a rehabilitated pipe, and the renovated pipe that has been produced is rotated and fed in the axial direction of the existing pipe, and the renovated pipe that has been rotated is renewed. A belt-like member is supplied to the rehabilitation pipe, and a rehabilitation pipe is additionally formed in the axial direction of the existing pipe.

  As a result, at the time of pipe production of rehabilitated pipes, the rotation of the outer link frame and the inner link frame of each link body around the connecting shaft is restricted to a set angle range until the stoppers collide with each other. It is possible to reliably prevent outward bending. In addition, it is possible to reliably prevent the operator's fingers from being pinched by the stopper, and it is possible to manufacture the rehabilitating tube while preventing damage to the stopper and thus the link frame.

  According to the rehabilitated pipe manufacturing apparatus of the present invention, it is possible to reliably prevent the operator from squeezing the finger and to prevent the link body from being damaged as much as possible to restrict the rotation exceeding the set angle range. A molded frame that can be obtained can be obtained.

  In addition, according to the method for producing a rehabilitated pipe of the present invention, it is possible to reliably prevent the operator's finger stuffing and to prevent the link body from being damaged as much as possible, and to rotate beyond the set angle range. A rehabilitated pipe of an existing pipe can be manufactured using a molding frame that can be regulated.

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

  First, prior to describing the embodiment of the pipe producing apparatus 1 of the present invention, one embodiment of the band-like member 100 used will be described with reference to FIG.

  The belt-like member 100 is formed by extruding a flexible synthetic resin, for example, hard vinyl chloride, polyethylene, polypropylene, etc., wound around a drum D (see FIG. 10) in a hollow cylindrical shape, and transported to the site. Is done. The belt-like member 100 is provided with a plurality of (three in the embodiment) T-shaped reinforcing ribs 102 on the back surface of a belt-like substrate 101 with the tips positioned parallel to the substrate 101. A bonding projection 103 is erected on the back surface of one side edge of the substrate 101. Further, the other side edge portion of the substrate 101 is formed in a stepped portion 104 stepped down to the back side by the thickness of the substrate 101 so that the side edge portion of the substrate 101 provided with the bonding convex portion 103 is disposed. In the stepped portion 104, a joint concave portion 105 into which the joint convex portion 103 can be fitted is provided. An inclined rib 106 that is inclined so as to be positioned on the protruding side of the bonding recess 105 as it is separated from the substrate 101 is formed in the bonding recess 105, and the tip of the inclined rib 106 is one side edge of the band-shaped member 100. Is forming.

  Such a belt-like member 100 is supplied to the pipe manufacturing apparatus 1 described later so that the back side of the substrate 101, that is, the side where the reinforcing ribs 102 and the like are erected is the outer peripheral side. As shown in a) and (b), the joint concave portion 105 of the other belt-like member 100 is outside (inside) the joint convex portion 103 of one belt-like member 100 out of the two belt-like members 100 and 100 adjacent to each other. By fitting from the side (outer (inner) circumferential side of the preceding belt-like member 100), the adjacent belt-like members 100, 100 are joined to each other, and the rehabilitated pipe S having a predetermined pipe diameter (see FIG. 3). Can be made.

  At this time, a stepped-down portion 104 of the belt-like member 100 that follows the side edge portion of the substrate 101 on which the joint convex portion 103 of the preceding belt-like member 100 is provided is disposed, and the joint convex portion 103 of the belt-like member 100 that precedes the belt. The inclined ribs 106 of the belt-like member 100 following the reinforcing ribs 102 on the side provided with are locked.

  Next, an embodiment of the pipe making apparatus 1 will be described with reference to FIGS. 3 and 4.

  The pipe making apparatus 1 includes a forming frame 2 that guides the belt-like member 100 in a spiral shape, a plurality of guide rollers 3 that are rotatably provided on the forming frame 2, and an adjacent spiral shape that is attached to the forming frame 2. The belt-like members 100 and 100 are joined to each other and a joining mechanism 4 that joins them together.

  As shown in FIG. 5, the molding frame 2 includes a plurality of link bodies 21 in which an inner link frame 22 and an outer link frame 23 are rotatably connected via a connecting shaft 24. The individual link bodies 21 are connected in order to form a substantially annular shape.

  Here, the inner link frame 22 and the outer link frame 23 constituting each link body 21 are a pair of link plates 221 and 231 opposed to each other in the front-rear direction, and one end portions of the pair of link plates 221 and 231 opposed to each other. It is formed in a U-shape from connecting plates 222 and 232 installed between them. Then, the other end portions of the pair of link plates 231 and 231 in the outer link frame 23 are superimposed on the other end portions of the pair of link plates 221 and 221 in the inner link frame 22, respectively, and they are connected to the connecting shaft. The link body 21 is formed by being rotatably connected via 24.

  Adjacent link bodies 21 and 21 are detachably connected via bolts and nuts by appropriately connecting connection plates 222 and 232 of link frames 22 and 23 and connection plates 222 and 232 of link frames 22 and 23. .

  However, if a specific pair of adjacent link bodies 21 and 21 can be attached and detached so that the forming frame 2 can be formed in a straight line, the remaining connecting plates 222 and 232 are fixed so as not to be attached and detached by welding or the like. It doesn't matter.

Further, as shown in detail in FIG. 6, an insertion hole 22 a through which the connecting shaft 24 is inserted is formed at each other end of the pair of link plates 221, 221 of the inner link frame 22, and the outer surface side thereof is formed. The bearing bush 223 for supporting the connecting shaft 24 is provided, the inner diameter is slightly larger than the outer diameter of the bearing bush 223 and the outer diameter is larger than the inner diameter, and the set angle is centered on the center of the insertion hole 22a. A ring-shaped stopper 224 is provided over a range. In addition, an insertion hole 23a through which the connecting shaft 24 is inserted is formed in each other end of the pair of link plates 231 and 231 of the outer link frame 23, and the inner link frame 22 described above is formed on the inner surface side thereof. A ring-shaped stopper 233 having an inner diameter and an outer diameter of the stopper 224 and extending over a set angle range centered on the center of the insertion hole 23a is provided on the side facing the stopper 224 and the center of the insertion hole 23a. Thereby, as shown in FIG. 7, the rotation of the outer link frame 23 relative to the inner link frame 22 is set until the stopper 224 of the inner link frame 22 and the stopper 233 of the outer link frame 23 collide with each other. By restricting the angle range, the inner link frame 22 and the outer link frame 23 of the link body 21 are prevented from bending inward or outward.

  The guide roller 3 is rotatably provided on the connecting shaft 24 of each link body 21. Here, the guide roller 3 is made of synthetic resin or metal, is rotatably supported around the connecting shaft 24 via a bearing 25, and contacts the flat inner surface of the strip member 100, that is, the inner peripheral surface of the rehabilitating pipe S. To do.

  Further, the guide roller 3 is in the existing pipe K, and is piped while moving around in contact with the inner peripheral surface of the rehabilitated pipe S piped from the adjacent strip members 100 and 100 joined together by the joining mechanism 4. In order to move the apparatus 1 in the axial direction of the existing pipe K, the apparatus 1 is arranged so as to be perpendicular to the belt-like member 100 constituting the rehabilitation pipe S. In order to arrange the guide roller 3 so as to be perpendicular to the belt-like member 100 constituting the rehabilitation pipe S, for example, a connecting portion between a pair of link bodies 21 and 21 adjacent to the joining mechanism 4 of the molding frame 2. The one link body 21 may be moved in the tube axis direction with respect to the other link body 21 and fixed to the joining mechanism 4 in the moved state.

  Of the link bodies 21, the link body 21 to which the joining mechanism 4 is attached is provided with a tube-making roller 42 to be described later instead of the guide roller 3, and is joined to the rotation direction of the tube-making apparatus 1. About the link body 21 behind the mechanism 4, the direction opposite to the direction in which the rehabilitating pipe S is formed by the width of the belt-like member 100 rather than the link body 21 to which the joining mechanism 4 is attached so as not to interfere when the belt-like member 100 is supplied. (See FIG. 8).

  As shown in FIG. 9, the joining mechanism 4 includes a pinch roller 41 in which a tube-forming roller 42 and a drive roller 43 are combined, and a gear box 44 fixed to the outer link frame 23 of the link body 21 in the molding frame 2. The rotating shaft of the tube-forming roller 42 and the rotating shaft of the driving roller 43 are axial with respect to the lead angle of the renovated tube S. The hydraulic motor 45 rotates the pinch roller 41 via the gears 441, 442, and 443. Are arranged so as to be orthogonal to each other and are rotatably supported by the gear box 44 together with the output shaft of the hydraulic motor 45. Then, by rotating the hydraulic motor 45, the tube-forming roller 42 is fixed to the output shaft, the rotation shaft of the tube-forming roller 42, and the rotation shaft of the drive roller 43, and the gears 441, 442 and 443 are engaged with each other. The rotation direction is set so that the driving roller 43 is rotated in the opposite direction, and the belt-shaped member 100 is sandwiched between the tube-making roller 42 and the driving roller 43 and sent out.

  Here, the tube-forming roller 42 has a length that is approximately twice the width of the belt-like member 100 and is formed into a cylindrical shape with steel or the like, and has a preceding spiral belt-like member 100 and a subsequent spiral shape. The outer diameter is set so that the outer peripheral surface contacts and rotates with the smooth inner peripheral surface of the rehabilitation pipe S formed by the adjacent band members 100 and 100.

  Further, the driving roller 43 includes reinforcing ribs 102 and 102 of the belt-like members 100 in the belt-like members 100 and 100 that are adjacent to each other by joining the preceding spiral belt-like member 100 and the following spiral belt-like member 100. A plurality of strips having a width that can be inserted between adjacent reinforcing ribs 102, 102 of the belt-like member 100 are provided between the outer peripheral surface and the outer peripheral surface of the tube-forming roller 42. The outer diameter is set so as to have an interval corresponding to the thickness of the substrate 101 of the belt-like member 100. Therefore, the outer peripheral surface of the driving roller 43 is the belt-like member 100 on the side that becomes the outer peripheral surface of the rehabilitating pipe S by the adjacent belt-like members 100 and 100 joined to each other between the adjacent reinforcing ribs 102 and 102 of each belt-like member 100. Rotates in contact with the back side.

  Furthermore, the outer peripheral surface of the drive roller 43 is knurled, and rotates without sliding with respect to the adjacent band-shaped members 100 and 100 joined.

  A spacer roller 46 having a slightly larger diameter than the outer diameter of the drive roller 43 is rotatably supported on the rotation shaft of the drive roller 43 supported on the gear box 44 of the joining mechanism 4. By rotating the outer peripheral surface of the roller 46 in contact with the inner peripheral surface of the existing pipe K, the roller 46 moves around the inner peripheral surface of the existing pipe K by the reaction. That is, when the joining mechanism 4 is driven, the pipe making apparatus 1 revolves around the axis of the renovated pipe S.

  The hydraulic motor 45 is driven by the pressure oil supplied from the hydraulic unit P through the pressure oil hose, and the hydraulic unit P is driven by the electric power supplied from the generator G (see FIG. 10). In this case, the pressure oil hose extending from the hydraulic unit P is connected to the hydraulic motor 45 via the rotary joint, and can supply the pressure oil without affecting the circular movement (revolution) of the pipe making apparatus 1.

  Next, a construction procedure for rehabilitating the existing pipe K using the pipe making apparatus 1 configured as described above will be described.

  First, the existing pipe K is provided with manholes M and M for each predetermined span. In this example, the manhole on the upstream side of the construction target area (rehabilitation area) is set to the start side manhole M1, and the manhole on the downstream side is set to the arrival side. The manhole M2 is used, and the rehabilitated pipe S is manufactured in the existing pipe K using these manholes M1 and M2. The rehabilitation pipe S is produced from the start side manhole M1 of the existing pipe K toward the arrival side manhole M2.

As preparations before construction, a drum D (with a turntable), a pipe making apparatus 1, a hydraulic unit P, a generator G, etc., on which the belt-like member 100 shown in FIG. The drum D is installed on the ground on the start side manhole M1 side, while the generator G is installed on the ground on the arrival side manhole M2 side. Moreover, the pipe making apparatus 1 and the hydraulic unit P are carried in and installed in the upstream end in the existing pipe K to be rehabilitated through the start side manhole M1. At that time, the pipe making apparatus 1 is disassembled into the forming frame 2 provided with the guide roller 3 and the joining mechanism 4 and is then assembled. Next, the pressure oil hose from the hydraulic unit P is connected to the hydraulic motor 45 of the joining mechanism 4 in the pipe making apparatus 1 through a rotary joint.

  In addition, about the shaping | molding flame | frame 2, the connection part of a pair of adjacent link bodies 21 and 21 is removed, a plurality of link bodies 21 are carried in one row, and a pair of adjacent link bodies 21, 21 connecting portions are connected to form a substantially annular shape.

  Moreover, about the pipe manufacturing apparatus 1, according to the pipe diameter of the renovated pipe S to manufacture, the circumference (the number of the link bodies 21) of the shaping | molding flame | frame 2 is adjusted.

  Furthermore, the pipe making apparatus 1 is adjusted so as to have a helical pitch corresponding to the inner diameter of the existing pipe K to be rehabilitated and the width of the band-shaped member 100 to be used.

  When such a preparatory work is completed, the belt-like member 100 is pulled out from the inner peripheral side of the drum D arranged on the ground and pulled into the existing pipe K through the starting side manhole M1, and the pinch of the joining mechanism 4 in the pipe making apparatus 1 is pinched. The roller 41 is inserted and sent to the outside of the guide roller 3 provided on the molding frame 2.

  Next, in a state where the belt-like member 100 fed out of the guide roller 3 is sandwiched between the inner peripheral surface of the existing pipe K, the pipe making apparatus 1 is rotated around the axis of the existing pipe K, and the belt-like member 100 is rotated. A start rehabilitating tube S ′ is formed by winding around the forming frame 2 several times (1 to 3 times). At this time, the tube-forming device 1, that is, the joining mechanism 4 circulates, so that the joining convex portion 103 of the succeeding spiral strip member 100 is placed on the inner periphery of the joining concave portion 105 of the preceding spiral strip member 100. The side edge portion of the substrate 101 provided with the joining convex portion 103 of the subsequent spiral belt-like member 100 is disposed at the stepped portion 104 of the preceding spiral belt-like member 100 while being inserted from the side, The reinforcing rib 102 on the side where the joint convex portion 103 of the succeeding spiral band member 100 is engaged with the inclined rib 106 of the preceding spiral band member 100 so that the adjacent spiral band member 100 is adjacent. , 100 are joined together.

  After the start-up rehabilitating pipe S ′ is completed, the joining mechanism 4 of the pipe making apparatus 1 is driven. As a result, the hydraulic motor 45 of the joining mechanism 4 rotates to rotate the pinch roller 41, and the tube-making roller 42 and the drive roller 43 sandwich and feed the belt-shaped member 100, and relatively move along the belt-shaped member 100. Moves (revolves) in the direction opposite to the feed direction. At this time, the belt-like member 100 guided by the forming frame 2 and the guide roller 3 that revolves around by the rotation of the pinch roller 41 and relatively fed so as to be adjacent to the starting rehabilitation pipe S ′ is the joint protrusion 103. Is inserted into the joint recess 105 of the band member 100 of the starting rehabilitation pipe S ′ from the inner peripheral side, and the rear end side of the band member 100 following the stepped part 104 of the band member 100 of the starting rehabilitation pipe S ′. An edge is disposed, and the reinforcing rib 102 on the rear end side of the succeeding strip member 100 is engaged with the inclined rib 106 of the strip member 100 of the start rehabilitation pipe S ′, and the adjacent spiral strip member 100, The rehabilitation pipes S are manufactured by joining 100 to each other (see FIG. 2B).

  In this way, the pinch roller 41 of the joining mechanism 4 joins the spiral strip member 100 following the leading spiral strip member 100 to produce the rehabilitated tube S while forming the regenerated tube S on the inner peripheral surface of the existing tube K. As a result, the pipe making apparatus 1 eventually produces the belt-like member 100 in the rehabilitated pipe S, and moves (revolves) in the circumferential direction, and at the same time, the existing pipe toward the reaching side manhole M2. Move to K axis.

  That is, the belt-like member 100 supplied to the pipe making apparatus 1 is joined to the belt-like member 100, 100 adjacent to each other by the pinch roller 41 of the joining mechanism 4 to be piped to the rehabilitating pipe S, and the rehabilitated pipe is made. The pipe S is arranged in the existing pipe K without rotating, and a spiral strip member 100 is newly supplied to the reaching side manhole M2 side of the rehabilitating pipe S so that the rehabilitating pipe S faces the reaching side manhole M2. It is additionally formed in the axial direction of K.

  When the pipe production of the rehabilitation pipe S is completed over the entire length of the construction target area (rehabilitation area) of the existing pipe K, the strip-like member 100 at the end of the rehabilitation pipe S is cut, and then the pipe production apparatus 1 is disassembled. The pipe making apparatus 1 and the hydraulic unit P are removed.

  That is, since the forming frame 2 is formed by connecting a plurality of link bodies 21 to each other, the forming frame 2 is connected to the link body by removing the connection of the connecting portions of the pair of adjacent link bodies 21 and 21. It can be one row of 21.

  Here, as the joining mechanism 4 of the pipe making apparatus 1, the driving roller 43 is not provided, but the pipe making roller 42 and a pressing roller (not shown) that is provided on the forming frame 2 and feeds the belt-like member 100 are provided. In this case, since there is no portion projecting in the outer diameter direction, the renovated pipe S can be produced with almost no gap between the existing pipe K.

  In the above-described embodiment, the pipe making apparatus 1 is arranged on the existing pipe K, the pipe making apparatus 1 is rotated around the axis of the existing pipe K, the rehabilitated pipe S is produced, and the production is performed without rotation. Although the pipe manufacturing process which supplies the strip | belt-shaped member 100 to the renovated pipe S newly piped and adds and forms the renovated pipe S was demonstrated, the pipe manufacturing apparatus 1 is arrange | positioned in the start side manhole M1, and the pipe manufacturing apparatus 1 is already installed. Rotating around the axis of the tube K to produce the rehabilitated pipe S, supplying the strip member 100 to the renewed pipe S that has been produced without rotation to form the renovated pipe S on the other hand, The rehabilitated pipe S can be rehabilitated by pulling the rehabilitated pipe S in the direction opposite to the direction in which the rehabilitated pipe S is added and carrying it into the existing pipe K.

  Hereinafter, a construction procedure for arranging the pipe making device 1 in the start side manhole M1 and rehabilitating the existing pipe K will be described with reference to FIG.

  This pipe making apparatus 1 also has the same structure as that of the above-described embodiment, that is, a forming frame 2 that guides the supplied band-like member 100 in a spiral manner, and a plurality of guide rollers that are rotatably provided on the forming frame 2. 3 and a joining mechanism 4 which is attached to the molding frame 2 and joins the adjacent spiral belt-like members 100, 100 to each other. Omitted.

  A drum D (with a turntable) on which the belt-like member 100 is wound is disposed on the ground on the start side manhole M1 side, and a power unit (not shown) including a generator and a hydraulic unit is installed. Moreover, after carrying in the pipe making apparatus 1 in the start side manhole M1 using a crane etc., the hydraulic piping from a power unit is each connected to the hydraulic motor 45 which drives the joining mechanism 4 via a rotary joint.

  On the other hand, a winch 5 for pulling the rehabilitation pipe S into the existing pipe K is installed on the ground on the arrival side manhole M2 side, and the ropes 51 such as wires and ropes wound around the winch drum are not shown. Lead to the start side manhole M1 side using a wire.

  When the preparatory work is completed, the belt-like member 100 is pulled out from the inner peripheral side while rotating the drum D around the axis, and drawn into the start-side manhole M1, and the tip is introduced into the joining mechanism 4 of the pipe making apparatus 1. .

  And in the starting side manhole M1, in a state where the pipe making apparatus 1 is lifted using a crane or the like, the joining mechanism 4 is rotated forward to feed the belt-like member 100, and after winding about two rounds, the belt-like member 100 is wound. Is narrowed down and held by the guide roller 3, and is formed to have a diameter slightly smaller than the inner diameter corresponding to the outer periphery of the forming frame 2, that is, the inner diameter of the existing pipe K. Next, the belt-like member 100 is further wound around the forming frame 2 of the pipe making apparatus 1 for about 4 to 7 turns, and the start rehabilitation pipe S 'having a slightly smaller diameter than the inner diameter of the existing pipe K is produced. Thereafter, the leading end of the striated body 51 drawn into the start side manhole M1 is connected to the leading portion of the rehabilitation pipe S.

  Next, the tip end portion of the start rehabilitation pipe S ′ is suspended from the existing pipe opening in the start side manhole M1, and then the joining mechanism 4 of the pipe making apparatus 1 is rotated forward in the start side manhole M1. As a result, the joining mechanism 4 of the pipe making apparatus 1 can rotate around the axis of the existing pipe K in a direction opposite to the relative feeding direction of the belt-like member 100 with respect to the start rehabilitation pipe S ′ supported by the existing pipe K. The rehabilitation pipe S is manufactured. In this case, the direction in which the pipe making apparatus 1 pipes the regenerated pipe S (will proceed) is opposite to the existing pipe K to be rehabilitated.

  The winch 5 is driven simultaneously with this pipe making work, and the rehabilitated pipe S is pulled into the existing pipe K by the ridge body 51 at the same speed as the pipe making speed in the axial direction of the rehabilitated pipe S. . As a result, the remanufactured pipe S is not removed, and the remanufactured pipe S that has been manufactured is not wound around the existing pipe K without moving from the fixed position in the start-side manhole M1. Inserted into.

  Then, the rehabilitated pipe S is piped and inserted into the existing pipe K, and when it reaches the reaching side manhole M2, the band-like member 100 is cut at the front side of the pipe making apparatus 1 and the end portion thereof is processed. Then, the pipe making apparatus 1 is removed from the rehabilitated pipe S, and the strip 51 is removed from the rehabilitated pipe S, and then the pipe making apparatus 1 is disassembled and removed.

  By the way, in embodiment mentioned above, the pipe making apparatus 1 is rotated around the axial center of the existing pipe K, the renovated pipe S is produced, and the strip | belt-shaped member 100 is newly added to the renovated pipe S produced without rotating. Has been described, and the pipe making procedure for forming the rehabilitating pipe S in the axial direction of the existing pipe K has been described. However, the pipe making apparatus 1 is disposed in the starting side manhole M1 and the strip member 100 is joined to the pipe making apparatus 1. It supplies to the mechanism 4, joins the junction part of the adjacent strip | belt-shaped members 100 and 100 mutually, pipes the renovated pipe S, and sends it out toward the arrival side manhole M2, rotating the piped renovated pipe S. Further, the rehabilitating pipe S can be additionally formed by supplying the belt-like member 100 to the rehabilitating pipe S that is manufactured while rotating.

  Hereinafter, other embodiments of the pipe making apparatus 1 of the present invention will be described with reference to FIGS. 12 and 13.

  As described above, the pipe making apparatus 1 includes a molding frame 2 that guides the supplied strip member 100 in a spiral manner, a plurality of guide rollers 3 that are rotatably provided on the molding frame 2, and an adjacent spiral. The forming frame 2 provided with the guide rollers 3 and the joining mechanism 4 are attached to a support frame 6.

  Here, the pipe manufacturing apparatus 1 is the same as that of the above-described embodiment, the same members are denoted by the same reference numerals, and detailed description thereof is omitted, and the upstream starting side manhole M1 to the downstream reaching side manhole M2 is omitted. Only the procedure for making the rehabilitated pipe for rehabilitating the existing pipe will be described with reference to FIG.

  First, a drum D (with a turntable) around which a belt-like member 100 is wound and a power unit W including a hydraulic unit and a generator are installed on the ground on the start side manhole M1 side. Moreover, the pipe making apparatus 1 is installed in the invert of the start side manhole M1.

  At that time, the pipe making apparatus 1 is disassembled and carried into the forming frame 2 provided with the guide roller 3 and the joining mechanism 4 and assembled in the start side manhole M1. Thereafter, the hydraulic piping from the power unit W is connected to the hydraulic motor 45 of the joining mechanism 4.

  In addition, about the shaping | molding flame | frame 2, the connection part of a pair of adjacent link bodies 21 and 21 is removed, a plurality of link bodies 21 are carried in one row, and a pair of adjacent link bodies 21, The connecting portions 21 are connected to form a substantially annular shape, and are attached to the support frame 6.

  Moreover, about the pipe manufacturing apparatus 1, according to the pipe diameter of the renovated pipe S to manufacture, the circumference (the number of the link bodies 21) of the shaping | molding flame | frame 2 is adjusted.

  Furthermore, the pipe making apparatus 1 is adjusted so as to have a helical pitch corresponding to the inner diameter of the existing pipe K to be rehabilitated and the width of the band-shaped member 100 to be used.

  When the preparatory work is completed, the belt-like member 100 is pulled out from the outer peripheral side of the drum D arranged on the ground and drawn into the starting side manhole M1, and the tip portion is inserted into the pinch roller 41 of the joining mechanism 4 to Send to the outer periphery.

  By pulling out the belt-like member 100 from the outer peripheral side of the drum D and sequentially supplying it to the pipe making apparatus 1, the leading end of the belt-like member 100 turns around the outer peripheral side of the molding frame 2 and is inserted into the pinch roller 41 of the joining mechanism 4 again. At this time, the subsequent belt-like member 100 is inserted into the pinch roller 41 of the joining mechanism 4. As a result, the joining concave portion 105 of the subsequent spiral band member 100 is fitted into the joining convex portion 103 of the preceding spiral band member 100 from the outer peripheral side, and the joining convex portion 103 of the preceding strip member 100 is provided. The stepped portion 104 of the subsequent band-shaped member 100 is arranged on the side edge of the substrate 101 thus formed, and further, the subsequent band-shaped member is formed on the reinforcing rib 102 on the side where the joint convex portion 103 of the preceding band-shaped member 100 is provided. The inclined rib 106 of the member 100 is locked, and the adjacent belt-like members 100 and 100 are joined to each other to start the production of the start rehabilitation pipe S ′. Similarly, the belt-like member 100 is inserted through the joining mechanism 4 several times (about 1 to 3 times), and the start rehabilitation pipe S ′ is produced.

  After completion of the production of the start rehabilitation pipe S ′, the joining mechanism 4 is driven. As a result, the hydraulic motor 45 of the joining mechanism 4 is driven to rotate to rotate the pinch roller 41, the belt-like member 100 is pulled out from the drum D, is sandwiched between the tube-making roller 42 and the driving roller 43, and is sent out to the outer peripheral side of the molding frame 2. . At this time, the joining concave portion 105 of the succeeding spiral band member 100 is fitted into the joining convex portion 103 of the preceding spiral strip member 100 from the outer peripheral side, and the rear end side of the substrate 101 in the preceding strip member 100 The stepped portion 104 of the subsequent strip member 100 is disposed on the side edge, and the inclined rib 106 of the subsequent strip member 100 is locked to the reinforcing rib 102 on the rear end side of the preceding strip member 100. Then, the adjacent spiral band members 100, 100 are joined together to produce the rehabilitation pipe S (see FIG. 2B).

  As a result, the adjacent spiral belt-like members 100, 100 adjacent to each other on the start side manhole M1 side of the start rehabilitation pipe S ′ are joined together to continuously produce the rehabilitation pipe S, and rehabilitation together with the start rehabilitation pipe S ′. The pipe S is sent out while rotating toward the reaching side manhole M2.

  As described above, the adjacent belt-like members 100 and 100 are joined to each other by the pinch roller 41 of the joining mechanism 4 of the pipe making apparatus 1 to produce the rehabilitated pipe S, and the regenerated pipe S that has been produced is formed into the molding frame 2. And is sent out while rotating toward the reaching manhole M2.

  When the pipe production of the rehabilitation pipe S is completed over the entire length of the construction target area (rehabilitation area) of the existing pipe K, the strip-like member 100 at the end of the rehabilitation pipe S is cut, and then the pipe production apparatus 1 is disassembled. Remove from the starting manhole M1.

  That is, since the forming frame 2 is formed by connecting a plurality of link bodies 21 to each other, the forming frame 2 is connected to the link body by removing the connection of the connecting portions of the pair of adjacent link bodies 21 and 21. It can be one row of 21. Further, the joining mechanism 4 is separated from the support frame 6 and removed from the starting side manhole M1.

  In addition, in embodiment mentioned above, although the case where the renovated pipe | tube S was manufactured with the strip | belt-shaped member 100 shown in FIG. 1 was demonstrated, it is not limited to such a strip | belt-shaped member 100.

  For example, as shown in FIG. 15, a reinforcing member having a substantially W-shaped cross section made of metal (usually steel) (may be V-shaped or U-shaped) between the reinforcing ribs 102 of the band-shaped member 100 of FIG. 1. The belt-like member 100A to which 200 is attached may be used.

  Moreover, as shown in FIG. 16, the strip | belt-shaped member 100B which consists of the strip | belt-shaped body 110 and the connector 120 which joins the adjacent strip-shaped bodies 110 and 110 may be sufficient.

  The band-shaped body 110 is formed by extruding a flexible synthetic resin, and a plurality of T-shaped reinforcing ribs 112 are located on the back surface of the band-plate-shaped substrate 111 so that the ends thereof are parallel to the substrate 111. Is provided. And the joint ditch | groove 113 is continuously formed in the both-sides edge part of the board | substrate 111 along a longitudinal direction, respectively.

  On the other hand, the connector 120 is formed with a pair of joint convex portions 121 that can be joined to the joint concave portions 113 and 113 at both side edges where the adjacent strips 110 and 110 are abutted, along the longitudinal direction.

  Thus, the leading edge side joining recess 113 of the preceding strip 110 and the leading edge joining recess 113 of the following strip 110 in a state where the front edge and the trailing edge of the strips 110, 110 adjacent to each other are abutted. By connecting and joining the connector 120 from the inner peripheral side of the belt-like body 110 across the belt, the belt-like member 100B formed by connecting the belt-like bodies 110, 110 adjacent to each other via the connector 120 can be formed. it can.

It is sectional drawing which shows an example of the strip | belt-shaped member used for the pipe manufacturing apparatus of this invention. It is sectional drawing explaining the joining process of the strip | belt-shaped member of FIG. It is a perspective view which shows one Embodiment of the pipe making apparatus of the rehabilitation pipe | tube of this invention. It is a front view of the pipe making apparatus of FIG. It is the front view and top view explaining the link body of the shaping | molding frame which comprises the pipe manufacturing apparatus of FIG. It is a disassembled perspective view which abbreviate | omits and shows a part of inner link frame and outer link frame of the link body of FIG. FIG. 6 is a cross-sectional view taken along the line AA of FIG. 5 showing a state where the stopper of the outer link frame collides with the stopper of the inner link frame of the link body and the bending is restricted. It is a top view explaining the link body of the shaping | molding frame to which the joining mechanism which comprises the pipe manufacturing apparatus of FIG. 3 was attached. It is a side view which shows the joining mechanism which comprises the pipe making apparatus of FIG. It is process drawing explaining the pipe making method of the rehabilitation pipe | tube by the pipe making apparatus of FIG. It is process drawing explaining other embodiment of the pipe making method of the rehabilitation pipe | tube by the pipe making apparatus of FIG. It is a side view which shows other embodiment of the pipe making apparatus of the rehabilitation pipe | tube of this invention. It is a front view of the pipe making apparatus of FIG. It is process drawing explaining the pipe making method of the renovated pipe by the pipe making apparatus of FIG. It is sectional drawing which shows the modification of a strip | belt-shaped member. It is sectional drawing which shows the other modification of a strip | belt-shaped member, and a disassembled perspective view which abbreviate | omits and shows a joining state partially.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pipe making apparatus 2 Forming frame 21 Link body 22,23 Link frame 221,231 Link plate 224,233 Stopper 3 Guide roller 4 Joining mechanism 41 Pinch roller 100,100A, 100B Strip member

Claims (5)

A belt-like member having joints formed on both side edges is supplied, the joints of adjacent belt-like members are joined together to form a renovated pipe, and a new belt-like member is supplied to the rehabilitated pipe. Is a remanufactured pipe forming device that is additionally formed in the axial direction of an existing pipe, the inner link frame and the outer link frame being connected to each other via a connecting shaft in a freely rotatable manner. A molding frame formed by connecting a plurality of bodies in order, formed into a substantially annular shape, a plurality of guide rollers rotatably supported on a coupling shaft of each link body of the molding frame, a pipe making roller, and a driving roller And a joining mechanism that joins the joining portions of adjacent band-shaped members together, and has an inner diameter larger than the outer diameter of the connecting shaft and an outer diameter larger than the inner diameter on the outer surface of the inner link frame. Over the set angle range A ring-shaped stopper is provided, and the inner link frame has an inner diameter and an outer diameter on the inner surface of the outer link frame. A remanufactured pipe manufacturing apparatus that is provided on the opposite side with respect to the center of the inner link frame and restricts the rotation of the outer link frame around the connecting shaft with respect to the inner link frame to a set angle range until the stoppers collide with each other .
  2. The rehabilitating pipe producing apparatus according to claim 1, wherein the forming frame provided with the guide roller and the joining mechanism are provided on a support frame.   2. The pipe making apparatus according to claim 1 is disposed in an existing pipe, and a strip-like member having joints formed on both side edges is supplied to the joining mechanism of the pipe making apparatus, and the pipe making apparatus is arranged around the axis of the existing pipe. To make a rehabilitation pipe by joining the adjacent joints to each other to make a rehabilitation pipe, and supplying a new strip member to the rehabilitation pipe made without rotation to form a rehabilitation pipe. Tube method.   2. The pipe making apparatus according to claim 1 is disposed in a manhole, and a strip-like member having joints formed on both side edges is supplied to the joining mechanism of the pipe making apparatus, and the pipe making apparatus is arranged around the axis of an existing pipe. While rotating, the adjacent joints are joined together to make a rehabilitation pipe, and a new strip is supplied to the rehabilitation pipe that has been made without rotation to form a rehabilitation pipe. A method for producing a rehabilitated pipe in which the rehabilitated pipe is pulled in a direction opposite to the direction in which the rehabilitated pipe is additionally formed and carried into the existing pipe.   A pipe-making apparatus according to claim 2 is disposed in a manhole, a strip-like member having joints formed on both side edges is supplied to the joining mechanism of the pipe-making apparatus, and adjacent joints are joined together to regenerate. A method for producing a rehabilitated pipe, in which a pipe is formed, and the regenerated pipe that has been produced is fed while being rotated, and a reed pipe is additionally formed by supplying a new strip member to the regenerated pipe that has been produced while rotating.

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