JP2017124941A - Rotary reel, method of attaching cylindrical body to rotary reel, and method of drawing long belt-shaped body using rotary reel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary reel, a method of attaching a cylindrical body to the rotary reel, and a method of drawing a long belt-shaped body using the rotary reel which enables construction with simple works in a short time.SOLUTION: A rotary reel 1 comprises a pair of frame bodies 2 having approximately circular figure, and plural connection components 31 and 32 placed between the pair of frame bodies 2. The rotary reel 1 is assembled by arranging the pair of frame bodies 2 opposite each other, mounting the plural connection components 31, mounting a bundled and rolled belt-shaped body 61 to the rotary reel and mounting remaining plural connection components 32. The connection components 32 are inserted in a direction parallel to a rotary central axis of the frame bodies 2 and placed while keeping a constant spacing between the frame bodies 2 arranged opposite each other.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a rotating reel that holds a bundled long strip (tubular body) so as to be able to be fed out, a method of attaching the tubular body to the rotating reel, and a drawer of the long strip using the rotating reel. Regarding the method.

  When existing pipes such as sewer pipes and agricultural water pipes are aged, it is widely practiced to rehabilitate the inner peripheral surface of the existing pipes with lining pipes formed using long strips. In consideration of convenience during construction, the belt-like body is stored in a state of being wound around a drum in a factory or the like, and is transported to the construction site as it is. In order to reduce the storage space in factories and the like, a so-called drumless storage form that does not use a drum is employed instead of a storage form that uses a drum that tends to be bulky.

  For example, in Patent Document 1, a drumless long belt-like body wound in a hollow cylindrical shape is accommodated in a reel of a construction jig, and then the reel is rotated to remove the belt-like body from the inner peripheral side of the hollow cylindrical shape. A method is disclosed for pulling out and forming a lining tube. As shown in FIG. 13, this type of reel 110 includes a pair of side frames 111 and a plurality of connecting members 113 detachably connected between the side frames 111. The connecting material 113 is a cylindrical body having the same structure in which mounting plates having internal threads formed at both ends of the square pipe are fixed, and the bolt 114 is connected to the connecting material 113 via the mounting holes 112 of the reinforcing bars 116 in the side frame 111. The connecting member 113 is connected to the side frame 111 by being screwed into the female screw 115.

JP 2012-240803 A

  The conventional reel 110 has the following problems and still has room for improvement. That is, in order to assemble the reel 110, a plurality of bolts 114 are screwed into the female screw 115 of the connecting member 113 disposed between the side frames 111 via the mounting holes 112 of the reinforcing bar 116, and the connecting member 113 is attached to the entire side frame 111. Must be connected over the circumference. In the case of the form shown in FIG. 13, it is a configuration that requires two bolts for each connecting portion, and the screwing operation of 16 bolts 114 on one side frame 111 and a total of 32 bolts 114 on both side frames 111 is performed. Needed. Since all of these operations are performed manually by the operator, it takes time and effort to assemble the reel 110, and a plurality of workers may be required.

  In addition, since the long strip 117 wound in a hollow cylindrical shape is accommodated in the reel 110 in a state where a plurality of connecting members 113 are connected to the lower half of the side frame 111, the upper half of the side frame 111 is thereafter accommodated. In order to connect the connecting material 113 to the portion, the space between the already fixed side frames 111 must be expanded by a dedicated extension device 118 and inserted so as not to interfere with the side frame 111. These operations also occurred when the long belt-shaped body 117 in the reel 110 was consumed during construction and a new long belt-shaped body 117 was newly added to the reel 110.

  Accordingly, the present invention has been made in view of the above-described problems, and the object of the present invention is to reduce the number of bolting work steps and eliminate the need for a work using an extension device, etc. Another object of the present invention is to provide a rotating reel, a method of attaching a cylindrical body to the rotating reel, and a method of pulling out a long strip using the rotating reel.

  The solution means of the present invention for achieving the above object is premised on a rotating reel that holds a substantially cylindrical bundle-like long belt-like body in a feedable manner. A pair of frame bodies that have a circular opening at the center and have a substantially circular outer shape with respect to the rotating reel, and a frame body that is disposed between the pair of frame bodies so that the frame bodies are spaced apart from each other. A plurality of connecting members to be maintained. The frame body includes a plurality of fixing portions to which end portions in the axial direction of connecting members are attached, and these fixing portions are disposed in a circumferential direction near the outer periphery of the frame body at intervals from each other. The fixing portion includes an attachment hole into which the connecting member is inserted, and a fastening unit that fastens the inserted connecting member to the frame body. And at least one frame body is provided with a fixing portion in which the attachment hole is provided as a through-hole penetrating the front and back of the frame body, and the connecting member can be inserted and removed in a direction parallel to the rotation axis of the frame body. It is said.

  Due to such specific matters, when fixing the connecting member to the pair of frame bodies, the connecting member is inserted and removed in a direction parallel to the rotation axis of the frame body, so that the work can be performed without requiring a plurality of workers or stretching devices. Can proceed. In addition, since the number of work steps for bolting the frame body and the connecting member can be reduced, it is possible to perform the work efficiently in a short time.

  Further, as another solution of the present invention, as a rotating reel that holds a substantially cylindrical bundle-like long strip in a feedable manner, it has a circular opening at the center and a substantially circular outer shape. A pair of frame bodies arranged opposite to each other and a plurality of connecting members disposed between the frame bodies and maintaining the mutual spacing between the frame bodies are provided. The frame body includes a plurality of fixing portions to which end portions of the connecting members in the axial direction are attached, and these fixing portions are disposed in the circumferential direction near the outer periphery of the frame body at intervals. To do. The plurality of fixing portions are provided with fixing portions having mounting holes into which the connecting members are inserted, and the connecting members attached to the fixing portions have locking portions that lock into the mounting holes. It is preferable that the stop portion is provided so as to be able to protrude and retract at an end portion of the connecting member, and the axial length of the connecting member is contracted to a length corresponding to the mutual interval between the opposing frame bodies.

  Even with this specific matter, when fixing the connecting member to the pair of frame bodies, it is possible to reduce the number of bolting work steps between the frame body and the connecting member, and it is necessary to widen the distance between the frame bodies using an extension device or the like. It becomes possible to reduce the artificiality, reduce the man-hours, and work efficiently in a short time.

  The method of attaching the cylindrical body of the present invention to the rotating reel is a method of attaching a cylindrical body configured by winding a long strip into a substantially cylindrical shape to the rotating reel. A connecting member removing step of removing a plurality of adjacent ones of the plurality of connecting members provided between the pair of frame bodies, and the cylindrical body and the rotating reel. An arranging step of arranging the shafts in parallel, an annular body containing step of rolling the rotary reel to house the cylindrical body between the pair of frame bodies, and a connecting member removing step. A connecting member attaching step for attaching the detached connecting member to the frame body.

According to the present invention, when the connecting member is attached to and detached from the pair of frame bodies, the connecting member can be disposed at a predetermined position by simply inserting and removing the connecting member in a direction parallel to the rotation axis of the frame body. The work can be easily advanced without requiring In addition, since the number of work steps for bolting the frame body and the connecting member can be reduced, the work can be efficiently performed in a short time.
Furthermore, when the substantially cylindrical tubular body is accommodated in the reel, the work of attaching and detaching the plurality of connecting members can be performed while keeping the mutual distance between the frame bodies constant, so that the workability is remarkably increased. It becomes possible to construct efficiently in a short time. In addition, when the cylindrical body is accommodated in the reel, the reel is rolled and accommodated, so there is no need to lift the cylindrical body with a crane or the like. It can be carried out.

  A method for pulling out a long strip using the rotating reel is also within the scope of the technical idea of the present invention. In other words, the rotating reel includes a pair of frame bodies having a substantially circular outer shape, and a plurality of connecting members that are disposed between the frame bodies and maintain a mutual interval between the frame bodies. As a method for pulling out the long belt-like body, a pair of frame bodies are arranged to face each other, and several of the plurality of connecting members are spaced apart in the circumferential direction below the rotation axis of the frame body. A first assembling step to be attached, a step of hanging a long strip of a substantially cylindrical bundle-like body from above, dropping it between the pair of frame bodies, and the remaining connecting members as rotational axes of the pair of frame bodies. A second assembling step for attaching the circumferentially spaced portion above the core and a step for installing the rotating reel on a support base for rotation are provided. In the second assembling step, the connecting member is attached while keeping the mutual interval between the opposed frame bodies constant.

  Due to such specific matters, when a long strip of a substantially cylindrical bundle-shaped body is accommodated in a rotary reel, the work of attaching a plurality of connecting members above the rotational axis is performed, and the mutual spacing of the frame bodies is reduced. Since it can be performed while keeping it constant, workability is remarkably improved, and it is possible to perform construction efficiently in a short time.

  In the present invention, when fixing the connecting member to the pair of frame bodies of the rotating reel, it is possible to reduce the man-hours for bolting the frame body and the connecting member, and the frame body can be spaced apart by using a dedicated extension device or the like. There is no need to expand the range, and it is possible to work efficiently in a short time.

1 shows a rotating reel according to an embodiment of the present invention, in which FIG. 1A is a top view and FIG. 1B is a front view. It is a perspective view which shows typically the elongate strip | belt-shaped body of the bundled state accommodated in the said rotation reel. It is explanatory drawing which shows the fixing | fixed part of the rotating reel which concerns on this embodiment. It is a front view which shows the drawing-out method (attachment method to the rotating reel of a cylindrical body (the 1)) of the elongate strip | belt shaped body which concerns on embodiment of this invention. It is a front view which shows the next process of FIG. It is a front view which shows the next process of FIG. It is explanatory drawing which shows an example of the structure of the fixing | fixed part of the rotating reel which concerns on this embodiment. It is explanatory drawing which shows the other example of the structure of the fixing | fixed part of the said rotation reel. It is explanatory drawing which shows the other example of the structure of the fixing | fixed part of the said rotation reel. It is explanatory drawing which shows the further another example of the structure of the fixing | fixed part of the said rotation reel. It is a front view which shows the attachment method (the 2) to the rotating reel of the cylindrical body which concerns on this embodiment. It is a perspective view which shows the next process of FIG. It is a perspective view which shows the rotating reel which concerns on the conventional form.

  A rotating reel, a method of attaching a cylindrical body to a rotating reel, and a method of pulling out a long strip using the rotating reel according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 shows a rotary reel 1 according to an embodiment of the present invention, FIG. 1 (a) is a top view thereof, and FIG. 1 (b) is a front view thereof. The rotating reel 1 holds a substantially cylindrical band 61 in a bundled state so as to be fed out.

  When the existing pipe such as a sewer pipe or an agricultural water pipe becomes obsolete, the belt-like body 61 held by the rotary reel 1 is wound spirally and functions as a lining pipe. The lining pipe is provided in the existing pipe and serves as a member for renewing the existing pipe.

  FIG. 2 is a perspective view showing the cylindrical body 6 in which the belt-like body 61 is configured in a substantially cylindrical bundle winding state. The belt-like body 61 is a long member, and is wound concentrically in a manufacturing process to form a substantially cylindrical bundle. The belt-like body 61 is a substantially hollow cylindrical tubular body 6 in which a binding material 62 is wound around four places in a bundled state, and a hollow portion 63 is formed at the center. The strip 61 is stored in the form of the cylindrical body 6 and is stored and transferred to the construction site for pipeline rehabilitation. At the construction site, the belt-like body 61 is pulled out from the cylindrical body 6 held on the rotary reel 1 while the rotary reel 1 is rotated.

  As shown in FIGS. 1A and 1B, the rotary reel 1 includes a pair of frame bodies 2 and a plurality of connecting members 3 (31, 32) arranged to face each other. The frame body 2 has a circular opening 21 at the center and has a circular outer shape. The connecting member 3 is installed between the opposing frame bodies 2 and is disposed so as to maintain a mutual distance between the pair of frame bodies 2.

  The frame body 2 of the present embodiment has an inner peripheral ring 22 and an outer peripheral ring 23 arranged concentrically. The frame body 2 includes a plurality of reinforcing bars 24 that connect the inner ring 22 and the outer ring 23 in the radial direction and are provided at equal intervals in the circumferential direction. One end of the reinforcing bar 24 is joined to the inner ring 22 and the other end is joined to the outer ring 23. Further, the reinforcing bars 24 are arranged radially from the center of the frame body 2 along the radial direction.

  Both ends of the connecting member 3 in the axial direction are fixed to the reinforcing bars 24 of the frame body 2. The reinforcing bar 24 is provided with a fixing part 25 to which the end of the connecting member 3 is attached. These fixing portions 25 are arranged in the circumferential direction near the outer periphery of the frame body 2 at intervals.

  Sixteen reinforcing bars 24 of the present embodiment are provided in the frame body 2, and a fixing portion 25 for the connecting member 3 is provided every other one of these reinforcing bars 24. The fixing portions 25 are respectively located on the same radius from the center of the frame body 2.

  The rotary reel 1 is provided with two types of connecting members 3 (31, 32). In FIG. 1B, a first connecting member 31 is disposed below the rotation axis of the rotary reel 1. As shown in FIG. 1A, the first connecting member 31 is also attached to the fixing portions 25 on the left and right sides when viewed from the front of the rotary reel 1. These first connecting members 31 are formed into a cylindrical body provided with attachment plates in which female screws are formed in the axial direction at both ends of the square pipe.

  A bolt hole (not shown) is formed as the fixing portion 25 in the reinforcing bar 24 to which the first connecting member 31 is attached. The end of the first connecting member 31 is pressed against the inner surface of the reinforcing bar 24, and the bolt 41 is screwed into the female screw of the first connecting member 31 through the bolt hole of the fixing portion 25. It is connected to the crosspiece 24.

  A second connecting member 32 is disposed above the rotation axis of the rotary reel 1 in FIG. When the plurality of first connecting members 31 are connected to the reinforcing bar 24, the pair of opposing frame bodies 2 are fixed at a constant interval. For this reason, when the 2nd connection member 32 is arrange | positioned between the opposing frame bodies 2, it fixes, keeping the mutual space | interval of these frame bodies 2 fixed.

  As shown in an enlarged view in FIG. 3, the second connecting member 32 has a bolt insertion hole 33 formed through the end portion of the square pipe so as to be orthogonal to the axial direction. On the other hand, the reinforcing bar 24 has a rectangular section mounting hole 26 into which the second connecting member 32 is inserted as a fixing portion 25, and a bolt 41 that fastens the inserted second connecting member 32 to the reinforcing bar 24. And a nut 42 are provided. In this case, the attachment hole 26 is provided as a through-hole penetrating the front and back of the frame body 2 and penetrating in a direction parallel to the rotation axis. Bolt insertion holes 27 are formed in the side walls constituting the mounting holes 26 so as to be orthogonal to the axial direction of the reinforcing bars 24.

  As a result, the second connecting member 32 can be inserted into and pulled out from the outside of the frame body 2 into the mounting hole 26 in a direction parallel to the rotational axis of the frame body 2. When the second connecting member 32 is inserted into the mounting hole 26, the bolt 41 and the nut 42 are connected to the end of the second connecting member 32 and the bolt insertion holes 33 and 27 formed in the side wall of the mounting hole 26, respectively. Are fastened, and the second connecting member 32 and the reinforcing bar 24 are connected.

(How to attach the cylindrical body to the rotating reel (1))
The cylindrical body 6 constituted by the belt-like body 61 illustrated in FIG. 2 is placed on a pallet or the like so that the cylinder axis is in the horizontal direction. The cylindrical body 6 is lifted by a crane or the like with a lifting jig 7 described later attached to the hollow portion 63.

  When rehabilitating existing pipes, the rotating reel 1 is first prepared. As shown in FIG. 4, a pair of frame bodies 2 of the rotary reel 1 are arranged to face each other, and five connection members 3 (first connection members 31) are arranged in a substantially lower half portion of the rotation axis of the frame body 2. , Are attached at intervals in the circumferential direction (first assembly step). The rotating reel 1 in this state is prepared by being installed on a support base 5 with a roller.

  Alternatively, the rotating reel 1 having all the eight connecting members 3 (31, 32) attached thereto is prepared, and the connecting members 3 (second connecting members) are fixed at the three fixing portions 25 located above the rotational axis. The member 32) is removed from the pair of frame bodies 2. As a result, the upper part of the rotary reel 1 is opened. FIG. 4 shows a state in which all eight connecting members 3 (31, 32) are attached for convenience of explanation.

  Thus, when the cylindrical body 6 is ready to be accommodated in the rotary reel 1, the lifting jig 7 is passed through the hollow portion 63 of the cylindrical body 6 as shown in FIG. The cylindrical body 6 is lifted by a crane or the like through the tool 7. The cylindrical body 6 is suspended from above and accommodated in a space defined by the pair of frame bodies 2 and the five connecting members 3 (first connecting members 31).

  Next, as shown in FIG. 6, the three connecting members 3 (second connecting members 32) removed from the pair of frame bodies 2 are attached to the pair of frame bodies 2 (second assembly step). That is, the second connecting member 32 is directed from the outer surface side of one frame body 2 toward the inner surface side of the other frame body 2 through the mounting hole 26 of the fixing portion 25 and the rotation axis of these frame bodies 2. Insert in parallel direction. Next, the second connecting member 32 and the reinforcing bar 24 disposed through the mounting hole 26 of the frame body 2 are fastened with bolts 41 and nuts 42 (see FIG. 3).

  The operator can insert the second connecting member 32 into the two mounting holes 26 from the front side or the back side of the rotary reel 1 and perform the bolting operation without going around the inside of the rotary reel 1. In addition, since the second connecting member 32 can be easily attached while keeping the mutual spacing between the frame bodies 2 arranged opposite to each other, a plurality of workers are not required.

  Thereby, the upper part of the pair of frame bodies 2 above the rotation axis can be connected by the second connecting member 32, and the cylindrical body 6 can be stored in the rotary reel 1. A plurality of connecting members 3 are disposed outside the cylindrical body 6, and the cylindrical body 6 is stably held on the rotary reel 1.

(How to attach the cylindrical body to the rotating reel (2))
Another method for attaching the cylindrical body 6 to the rotary reel 1 will be described.
When rehabilitating existing pipes, the rotating reel 1 is first prepared. As shown in FIG. 11, a rotating reel 1 having all eight connecting members 3 (31, 32) attached thereto is prepared in advance, and as shown in a circle in FIG. 11, is positioned above the rotational axis. At the three fixing portions 25 to be removed, the connecting member 3 (second connecting member 32) is removed from the pair of frame bodies 2 (connecting member removing step). At this time, although the rotary reel 1 is temporarily placed on the ground or the like, it is preferable to temporarily support it with a support member or the like so as not to roll.

Alternatively, the pair of frame bodies 2 of the rotary reel 1 are arranged to face each other at the construction site, and five connection members 3 (first connection members 31) are arranged around the lower half of the rotation axis of the frame body 2. You may attach at intervals in a direction. In other words, other than the second connecting member 32 of the rotary reel 1 may be assembled from the beginning at the construction site.
A part of the rotating reel 1 is opened by any one of the above methods.

  In this way, after the rotary reel 1 is ready, the cylindrical body 6 is attached to the rotary reel 1. As shown in FIG. 12A, the cylindrical body 6 and the rotary reel 1 are arranged so that their axial directions are parallel to each other (arrangement step). At this time, the cylindrical body 6 is preferably supported by a temporary support member such as a pallet so as not to roll. Subsequently, as shown in FIG. 12B, the rotary reel 1 is rolled to accommodate the cylindrical body 6 between the pair of frame bodies 2 (cylindrical body accommodation step). Then, as shown in FIG.12 (c), the three connection members 3 (2nd connection member 32) removed by the connection member removal process are attached to a pair of frame body 2 (connection member attachment process). In the connecting member attaching step, when the second connecting member 32 to be attached is positioned below, the second connecting member 32 may be attached to the pair of frame bodies 2 in a state of being lifted by several centimeters with a crane or the like. Moreover, what is necessary is just to remove the temporary support member installed in the downward direction of the cylindrical body 6 immediately after a connection member attachment process.

  In the cylindrical body accommodation step, the cylindrical body 6 is lifted up above the pair of frame bodies 2 by a crane or the like and is not accommodated in the rotary reel 1, so safety can be improved. Moreover, since the cylindrical body 6 is accommodated in the rotating reel 1 from the opening formed by rolling the rotating reel 1 and removing the connecting member 3 (second connecting member 32), a simple operation is performed. Thus, the cylindrical body 6 can be accommodated in the rotary reel 1.

  In the connecting member attaching step, the second connecting member 32 is directed from the outer surface side of one frame body 2 toward the inner surface side of the other frame body 2 through the attachment holes 26 of the fixing portion 25, and these frame bodies 2. Insert it in a direction parallel to the axis of rotation. Next, the second connecting member 32 and the reinforcing bar 24 disposed through the mounting hole 26 of the frame body 2 are fastened with bolts 41 and nuts 42 (see FIG. 3).

  The operator can insert the second connecting member 32 into the two mounting holes 26, 26 facing each other from the front side or the back side of the rotary reel 1 and perform the bolting operation without going around the inside of the rotary reel 1. it can. In addition, since the second connecting member 32 can be easily attached while keeping the mutual interval between the opposed frame bodies 2 and 2 constant, a plurality of workers are not required.

  The cylindrical body 6 can be stored in the rotary reel 1 by the above process. A plurality of connecting members 3 (31, 32) are arranged on the outer side in the radial direction of the cylindrical body 6, and the cylindrical body 6 is stably held on the rotary reel 1. As shown in FIG. 6, after the cylindrical body 6 is accommodated in the rotating reel 1, the rotating reel 1 is installed on the support base 5 with a roller.

  When the cylindrical body 6 is accommodated in the rotary reel 1, the binding material 62 is cut and the binding of the band-shaped body 61 is released. In the rotary reel 1, these connecting members 3 are fixed to the reinforcing bars 24 so that the cylindrical body drawn by the inner sides of the eight connecting members 3 is larger than the outer shape of the cylindrical body 6. For this reason, the cylindrical body 6 from which the binding has been released swells in the direction opposite to the winding direction of the belt-like body 61 and deforms so as to press the outer peripheral surface against the plurality of connecting members 3. Thereby, the outer diameter of the cylindrical body 6 expands. The center of the cylindrical body 6 is held in a state of being positioned on the rotation axis of the rotary reel 1.

  Next, the winding start end portion of the belt-like body 61 is pulled out from the inner peripheral side of the cylindrical body 6, and is pulled out through the circular opening 21 (inside the inner peripheral ring 22) of the frame body 2. The belt-like body 61 is pulled out while rotating the rotary reel 1 using the support 5 and one end thereof is guided to a pipe-making machine for a lining pipe. At this time, the rotary reel 1 can be stably rotated, and the belt-like body 61 can be pulled out smoothly.

  As described above, the first connecting member 31 is rarely removed after being attached with the pair of frame bodies 2 facing each other in order to maintain the mutual distance between the frame bodies 2. On the other hand, the second connecting member 32 is detached from the frame body 2 or attached to the frame body 2 every time when the cylindrical body 6 is accommodated. For this reason, the 2nd connection member 32 is set as the structure which can be attached and detached while maintaining the mutual space | interval of the frame body 2 arrange | positioned oppositely, and does not require an operation | work effort.

  That is, as shown in FIG. 3, the rotary reel 1 is inserted into and removed from the mounting hole 26 formed through the fixed portion 25 in the length direction (a direction parallel to the rotation axis). It has a structure that can be used. As shown in FIG. 7, the mounting hole 26 is provided as a through hole in both the fixing portions 25 of the pair of frame bodies 2, so that the second mounting hole 26 can be second from the outer surface on either side of the frame body 2. The connecting member 32 can be inserted and removed. If the second connecting member 32 is inserted into the mounting hole 26, the bolt 41 and the nut 42 can be tightened to easily connect to the reinforcing bar 24.

  As shown in FIG. 8, the mounting hole 26 is provided as a through hole in the reinforcing bar 24 of both the frame bodies 2, and one of the frame bodies 2 </ b> A has a first hole inside the mounting hole 26. The structure in which the step part 28 which the edge part of the 2 connection member 32 latches was formed may be sufficient. At one end in the axial direction of the second connecting member 32, a hook-shaped locking portion 34 that locks to the stepped portion 28 is provided.

  In this case, the second connecting member 32 is inserted into the mounting hole 26 from the outer surface of the one frame body 2 </ b> A, and the locking portion 34 is locked to the stepped portion 28. Further, the other end portion of the second connecting member 32 is fitted into the mounting hole 26 penetrating the other frame body 2 </ b> B, and is fastened using the bolt 41 and the nut 42. As a result, the positioning of the second connecting member 32 is facilitated, the number of work steps for tightening the bolt 41 and the nut 42 can be reduced, and the connection can be performed in a short time without further labor.

  As shown in FIG. 9, the mounting hole 26 is provided as a through hole in the reinforcing bar 24 of one frame body 2A, and the end of the second connecting member 32 is provided in the reinforcing bar 24 of the other frame body 2B. You may be comprised as the recessed part 29 which receives a part (front-end | tip part). In this case, the second connecting member 32 is inserted into the mounting hole 26 from the outer surface of one frame body 2A, and the end portion is disposed to abut against the recessed portion 29 on the other frame body 2B side. Even with such a configuration, the positioning of the second connecting member 32 can be facilitated, the number of work steps for tightening the bolt 41 and the nut 42 can be reduced, and the connection can be made in a short time without any further trouble. It becomes.

  Further, the rotating reel 1 according to the present embodiment is not limited to the configuration in which the mounting hole 26 is provided in at least one frame body 2 as a through hole penetrating the front and back of the frame body 2. That is, as shown in FIG. 10, the reinforcing bars 24 of both the frame bodies 2 may be formed with recessed portions 29 that open to the inner surface side as concave recesses. In this case, the second connecting member 32 is provided with a locking portion 35 that is locked to the recessed portion 29 as a convex portion that can be projected and retracted at the end of the second connecting member 32. Thereby, the 2nd connection member 32 is comprised so that the axial direction length in the state in which the latching | locking part 35 was immersed may become a length corresponding to the mutual space | interval of the opposing frame body 2. As shown in FIG.

  In this case, the second connecting member 32 is inserted in the radial direction along the reinforcing bar 24 from the outside of the opposing frame body 2, and the end portion is slid on the inner surface of the reinforcing bar 24. The locking portion 35 is inserted while being inserted into the end portion of the second connecting member 32, and protrudes from the end portion when reaching the recessed portion 29. As a result, the engaging portions 35 at both ends of the second connecting member 32 can be engaged with the recessed portions 29 of the reinforcing bars 24 facing each other. Such a series of operations may be performed while keeping the mutual distance between the pair of frame bodies 2 constant. Further, there is no need to fasten the bolt 41 and the nut 42, and the second connecting member 32 can be connected to the frame body 2 in a more simple and short time. In addition, the latching | locking part 35 may be comprised so that it can protrude / extend by biasing members, such as a spring, and you may comprise so that it can protrude / extend manually.

  As described above, the rotating reel 1 of the present embodiment can attach and detach the connecting member 3 (32) without expanding the mutual distance between the opposing frame bodies 2 regardless of the form. Further, since the man-hours for bolting the connecting member 3 and the frame body 2 are reduced, the belt-like body 61 is pulled out using the rotating reel 1 and supplied to a pipe making machine or the like, so that it can be efficiently performed in a short time. It becomes possible to construct a lining pipe.

  Further, in this embodiment, when the cylindrical body 6 is attached to the rotary reel 1, the rotary reel 1 is rolled so that the cylindrical body 6 is accommodated in the rotary reel 1. Therefore, efficiency is reduced without taking time and effort. It can be installed well and safely.

In addition, this invention is not limited only to the said embodiment, It can implement in other various forms, without deviating from the mind or main characteristics.
For example, in the above embodiment, the fixed portion 25 and the connecting member 3 positioned above the rotation axis of the rotary reel 1 have a configuration that can be inserted and removed in a direction parallel to the rotation axis or the end of the connection member 3 (32). Although it was set as the structure which can be made to appear and retract, it is not restricted to this, The structure which concerns about all the fixing | fixed parts 25 and the connection members 3 may be employ | adopted.
In the above-described embodiment, the method of rolling the rotary reel 1 with the three connecting members removed to accommodate the cylindrical body 6 in the rotary reel 1 has been described. However, the cylindrical body 6 is the rotary reel. If it is accommodated in 1, the number and location of the connecting members to be removed can be set as appropriate.

  INDUSTRIAL APPLICABILITY The present invention can be suitably used for an operation for rehabilitating an existing pipe using a long band-like body.

DESCRIPTION OF SYMBOLS 1 Rotating reel 2 Frame body 21 Circular opening 22 Inner ring 23 Outer ring 24 Reinforcement bar 25 Fixing part 26 Mounting hole 27 Bolt insertion hole 28 Step part 3 Connecting member 31 First connecting member 32 Second connecting member 33 Bolt insertion Hole 34 Locking portion 41 Bolt 42 Nut 5 Support base 6 Tubular body 61 Band-shaped body 62 Bundling material 63 Hollow portion 7 Lifting jig

Claims (8)

A rotating reel for holding a substantially cylindrical long band in a bundled state so as to be capable of being sent out,
A pair of frame bodies having a circular opening at the center and having a substantially circular outer shape and facing each other, and a plurality of connecting members disposed between the frame bodies to keep the frame bodies spaced apart from each other And
The frame body includes a plurality of fixing portions to which end portions of the connecting members in the axial direction are attached, and these fixing portions are arranged in the circumferential direction near the outer periphery of the frame body at intervals.
The plurality of fixing portions are provided with mounting holes into which the connecting members are inserted and fastening means for fastening the inserted connecting members to the frame body. At least one of the frame bodies includes the mounting holes. A rotary reel provided as a through-hole penetrating the front and back of a frame body, wherein the connecting member includes a fixed portion that can be inserted and removed in a direction parallel to the rotational axis of the frame body. The rotary reel according to claim 1,
The mounting reel is provided as a through hole in both of the pair of frame bodies. The rotary reel according to claim 1,
The mounting reel is provided as a through hole in one frame body, and is provided in the other frame body as a concave recess for receiving an end of a connecting member. The rotary reel according to claim 2,
The rotating reel according to claim 1, wherein the mounting hole is provided with a step portion in which the end portion of the connecting member is locked in the hole. A rotating reel for holding a substantially cylindrical long band in a bundled state so as to be capable of being sent out,
A pair of frame bodies having a circular opening at the center and having a substantially circular outer shape and facing each other, and a plurality of connecting members disposed between the frame bodies to keep the frame bodies spaced apart from each other And
The frame body includes a plurality of fixing portions to which end portions of the connecting members in the axial direction are attached, and these fixing portions are arranged in the circumferential direction near the outer periphery of the frame body at intervals.
The plurality of fixing portions include a fixing portion having an attachment hole into which the connecting member is inserted, and the connecting member attached to the fixing portion has an engaging portion that engages with the attaching hole. The rotary reel is characterized in that the portion is provided so as to be able to protrude and retract at the end of the connecting member, and the axial length of the connecting member can be contracted to a length corresponding to the interval between the opposing frame bodies. . It is a method of attaching a cylindrical body constituted by winding a long belt-like body into a substantially cylindrical shape to a rotating reel,
A rotating reel according to any one of claims 1 to 5, comprising:
A connecting member removing step of removing several adjacent ones of the plurality of connecting members disposed between the pair of frame bodies;
An arrangement step of arranging the cylindrical body and the rotary reel such that respective axial directions are parallel;
An annular body housing step of rolling the rotating reel to house the cylindrical body between the pair of frame bodies;
And a connecting member attaching step for attaching the connecting member removed in the connecting member removing step to the frame body. A method for pulling out a long band using a rotating reel,
The rotary reel has a pair of frame bodies having a substantially circular outer shape, and a plurality of connecting members that are disposed between the frame bodies and maintain a mutual spacing between the frame bodies,
A first assembly step in which a pair of frame bodies are arranged opposite to each other, and several of the plurality of connecting members are attached at intervals in the circumferential direction below the rotation axis of the frame body;
A step of hanging a long strip of a substantially cylindrical bundle from above and dropping it between a pair of frame bodies;
A second assembly step of attaching the remaining connecting members above the rotational axis of the pair of frame bodies at intervals in the circumferential direction;
Installing on a support base for rotating the rotating reel,
In the second assembling step, the connecting member is attached while maintaining a constant interval between the opposed frame bodies. A method for pulling out the long band-shaped body according to claim 7,
In the second assembly step, the connecting member is inserted from the outer surface side of one of the frame bodies toward the inner surface side of the other frame body in a direction parallel to the rotation axis of these frame bodies, and at least the A method for pulling out a long band-shaped body, characterized in that one frame body is disposed so as to penetrate therethrough.

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