JP2010047980A - Rod fixing device and method for using the rod fixing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rod fixing device capable of being very simply fixed on a top part of a concrete utility pole in a short time and improving work efficiency greatly. <P>SOLUTION: A reinforcing bar for reinforcement of the utility pole protruding from an upper end face of the utility pole 1 is inserted into a long nut 11 and is fixed, and an Aramid rod string 53 attached to an upper end of an Aramid rod 31 is temporarily fastened on a temporary fixing member 17 composed of a bolt 17a and a nut 17b attached to a circular arc member 15 attached onto the long nut 11 fastened on the reinforcing bar for reinforcement of the utility pole through a connection member 13. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a rod fixing device for fixing and holding a reinforcing rod, which is attached to a top opening of a concrete utility pole and is suspended in the utility pole from the top opening, at the top of the utility pole. It relates to a method of using the apparatus.

  A concrete utility pole is usually erected on the ground with a predetermined length of the base end of the utility pole embedded in the ground. Such an electric pole is a cylindrical body whose outer peripheral part is made of reinforcing steel and concrete, and the inside is hollow, that is, hollow.

  Such a concrete utility pole is, for example, a rod that is a reinforcing rod-like member inside a utility pole from a side opening such as a ground hole formed on the side of the utility pole about 1 m above the base of the utility pole, specifically an aramid After inserting a plurality of rods, for example, pea gravel or crushed stone is inserted into the gaps between these rod-shaped members, and mortar, concrete, or the like is sequentially added to reinforce the entire utility pole.

  A plurality of aramid rods inserted into the power pole for reinforcing the power pole are inserted one by one from the side opening. This is because a fishing line is suspended from the top opening of the power pole, and the tip of the suspension string is Lower to the side opening, tie the tip of this suspension string with the aramid rod attached to the upper end of the first aramid rod, and then pull the suspension string up from the top opening of the utility pole, When the pole is pulled up to the top opening of the utility pole, the aramid rod string is temporarily fixed to a rod fixing device attached to the upper end of the utility pole, and the aramid rod is suspended in the utility pole.

  In this way, when the first aramid rod is pulled up into the utility pole and the aramid rod string is temporarily fixed to the rod fixing device, the second aramid rod is then pulled up in the same manner, and the aramid rod string is temporarily fixed to the rod fixing device. To do. Then, the aramid rod is inserted into the utility pole by sequentially repeating the pulling up of the aramid rod and the temporary fixing operation to the aramid rod string fixing device for each of the plurality of aramid rods. The string can be temporarily fixed to the rod fixing device.

  Further, in order to more effectively reinforce the power pole with a plurality of aramid rods inserted into the power pole in this way, it is necessary to arrange the plurality of aramid rods in an optimal arrangement, that is, evenly in the power pole. However, for that purpose, it is necessary to insert a plurality of aramid rods inserted into the power pole into the rod holding adjustment jig or the rod holding portion of the rod placement auxiliary tool within the power pole.

  As described above, in order to insert a plurality of aramid rods in which the aramid rod string is temporarily fixed to the rod fixing device and suspended in the power pole into the rod holding adjustment jig or the rod holding portion of the rod arranging auxiliary tool Release the temporary fixing of each aramid rod to the rod fixing device of the aramid rod string, hold the aramid rod string so as to hang the aramid rod, pull up and down the aramid rod in the electric pole, When the aramid rod is inserted into the rod holding portion and the insertion is completed, it is necessary to sequentially repeat the operation of temporarily fixing the aramid rod string to the rod fixing device for each of the plurality of aramid rods.

  Thus, the conventional rod fixing device attached to the upper end of the utility pole to temporarily fix the aramid rod string is formed by combining a plurality of members using bolts, for example, as indicated by reference numeral 99 in FIG. In particular, four L-shaped fixtures 91 are attached to the upper end of the utility pole 1. An aramid rod string 93 is inserted into a hole formed in the upper end of the fixing metal 91 and temporarily fixed. The aramid rod string 93 is attached to the upper end of the aramid rod 95 inserted into the utility pole 1. In the figure, four aramid rods 95 are inserted into the utility pole 1, and four aramid rod strings 93 attached to the upper ends thereof are temporarily fastened to the upper ends of the four fixing brackets 91.

Each fixing bracket 91 has a small inverted L-shaped support bracket 97 fixed by bolts and nuts below the horizontally extending portion of the lower end of the L-shape. The vertical base of the support fitting 97 is fixed by being sandwiched by a mounting band 90 wound around the outer periphery of the top of the utility pole 1, thereby fixing each fixing fixture 91 to the top opening of the utility pole 1. It constitutes a fixing device.
JP 2007-77613 A

  As described above, the conventional rod fixing device 99 configured by fixing the plurality of fixing brackets 91 to the top opening of the utility pole 1 with the attachment band 90, the aramid rod 95 is inserted into the utility pole 1 from the side opening of the utility pole 1. The aramid rod string 93 is operated so that the aramid rod 95 inserted or pulled into the utility pole 1 is lifted or lowered while being suspended in the utility pole 1. Although it is necessary to attach, the attachment band 90 is lightly attached to the outer periphery of the top opening of the utility pole 1 in this attachment. Then, the vertical base of the small inverted L-shaped support fitting 97 of the first fixing fitting 91 among the plurality of fixing fittings 91 is sandwiched between the attachment band 90 and the outer periphery of the utility pole, and then the attachment band 90 is fastened and fixed. To do.

  Next, the vertical base of the support metal 97 of the second fixing metal 91 is similarly sandwiched between the attachment band 90 and the outer periphery of the utility pole, and then the attachment band 90 is tightened and fixed. Since the fixing bracket 91 is already fixed by the mounting band 90, it is necessary to prevent the first fixing bracket 91 from falling. For this purpose, the second fixing member 91 is attached to the mounting band 90 and the utility pole while holding the first fixing member 91 by hand or another means so that the first fixing member 91 does not fall. It is necessary to perform a relatively difficult and troublesome work such as fastening the fixing band 90 after being sandwiched between the outer peripheries of the power cables, which is time consuming and inefficient, and at the high point of the top of the utility pole 1 Due to the work to be performed, there is a problem that such a complicated work is more time-consuming and difficult.

  In addition, the complicated work needs to be performed on all of the third and subsequent plurality of fixing fittings 91, but the work becomes more complicated and time-consuming as the number increases.

  The present invention has been made in view of the above, and the object of the present invention is a rod fixing device that can be attached to the top of a concrete electric pole very easily and in a short time, and can improve work efficiency. It is in providing the usage method of this rod fixing device.

  In order to achieve the above object, a rod fixing device according to claim 1 is attached to a top opening of a concrete electric pole and suspends a reinforcing rod that is inserted into the electric pole and suspended from the top opening of the electric pole. A rod fixing device for holding, a mounting member having a mounting hole in which a reinforcing bar of a power pole protruding upward from the upper end surface of the outer periphery of the power pole is inserted from the lower end side, and a rod suspended in the power pole The gist of the present invention is to have a temporary fixing member for temporarily fixing a string attached to the upper end of the wire and a fixing member attached to the upper portion of the attachment member for fixedly attaching the temporary fixing member.

  In the rod fixing device according to claim 1, the reinforcing bar of the electric pole protruding from the upper end surface of the electric pole is inserted into the attachment hole of the attachment member and attached, and the upper part of the attachment member attached to the reinforcing bar of the electric pole is fixed. Since the string attached to the upper end of the rod is temporarily fixed to the temporary fixing member attached to the member, the rod fixing device is efficient in a short time by simply inserting a reinforcing bar into the mounting member. Thus, the rod fixing device can be efficiently fixed to the top of the utility pole in a short time without any problem even if the number of rods is increased and the height of the utility pole is high.

  The rod fixing device according to claim 2 is the rod fixing device according to claim 1, wherein the mounting member is formed at a right angle on a side portion closer to the lower portion and has a small-diameter screw hole whose inner peripheral surface is threaded. The cylindrical member has a reinforcing member inserted into the mounting hole from the lower end side and attached to the reinforcing reinforcing rod, and then a screw is screwed into the screw hole. The gist is to fix the reinforcing bars in a fixed manner by tightening them so that they abut against the reinforcing bars.

  The rod fixing device according to claim 2, wherein the mounting member is a cylindrical member having a small-diameter screw hole on a side near the lower portion, and the cylindrical member has a screw hole after the reinforcing reinforcing bar is inserted into the mounting hole. The rod fixing device is securely fixed to the reinforcing reinforcing bar, because the reinforcing reinforcing bar is fixedly attached by screwing the screw into the screw and tightening the tip of the screw against the reinforcing reinforcing bar.

  The rod fixing device according to claim 3 is the rod fixing device according to claim 1 or 2, wherein the fixing member has an arc member formed so as to extend in an arc shape in a circumferential direction of the top opening of the utility pole, The gist is that a plurality of the temporary fixing members are attached to the arc member at a predetermined interval in the circumferential direction.

  In the rod fixing device according to the third aspect, the fixing member is an arc member, and a plurality of the temporary fixing members are attached to the arc member at a predetermined interval in the circumferential direction.

  4. The rod fixing device according to claim 4, wherein the mounting member and the fixing member are connected to the fixing member so as to be separated from the mounting member in the rod fixing device according to any one of claims 1 to 3. And having a connecting member provided between the two.

  In the rod fixing device according to the fourth aspect, the mounting member is connected to the fixing member via the connecting member.

  The rod fixing device according to claim 5 is the rod fixing device according to any one of claims 1 to 4, wherein the temporary fixing member is fixedly attached to the fixing member and attached to an upper end of the rod. The gist of the present invention is to have a bolt around which the wound string is wound, and a nut that is screwed to the bolt and is tightened so as to be temporarily fixed with the wound string interposed therebetween.

  In the rod fixing device according to claim 5, since the temporary fixing member is composed of a bolt and a nut, it is easy and simple by winding a string attached to the upper end of the rod around the bolt and then screwing and tightening the nut. It is possible to secure temporarily.

  The rod fixing device according to claim 6 is the rod fixing device according to any one of claims 1 to 5, wherein the attachment member has an attachment hole into which the reinforcing reinforcing bar is inserted from a lower end side. It is composed of a long nut having a threaded portion formed on the inner peripheral surface, and this long nut has a small-diameter screw hole formed on the side surface near the lower end side of the long nut into which the reinforcing reinforcing bar is inserted, and the reinforcing reinforcing bar is After being inserted into the mounting hole, a screw is screwed into the small diameter screw hole, and the mounting member is fixedly attached to the reinforcing reinforcing bar by tightening the screw until the tip of the screw hits the reinforcing reinforcing bar. The gist is to hold the rod fixing device fixedly at the top of the utility pole.

  In the rod fixing device according to claim 6, the attachment member is constituted by a long nut, and a screw is screwed into a small-diameter screw hole formed on a side surface near the lower end of the long nut, and the tip of the screw is connected to the reinforcing reinforcing bar. Since the mounting member is fixedly attached to the reinforcing reinforcing bar by tightening the screw until it hits, the rod fixing device is securely fixed at the top of the utility pole.

  The method for using the rod fixing device according to claim 7 is the method for using the rod fixing device according to any one of claims 1 to 5, wherein a reinforcing reinforcing bar protruding upward from the upper end surface of the utility pole is used. Insert the rod fixing device into the mounting hole from the lower end side of the mounting member of the rod fixing device and fix the mounting member to the reinforcing bar to attach the rod fixing device to the upper end of the power pole, and try to insert it into the power pole or insert Hold the string attached to the upper end of the rod, lift the rod up or down in the utility pole, move the rod up and down to a predetermined position, and then temporarily fix the string to the temporary fixing member , Temporarily fix the rod in place, and if necessary, unfasten the string temporarily and hold the rod so that it is suspended in the utility pole while holding the string. ,pull And or up, navigate to a desired position, and temporarily fixed string in temporary fixing member, and summarized in that the temporarily fixed rod in place.

  In the method of using the rod fixing device according to claim 7, the reinforcing rod for reinforcing the electric pole is inserted into the mounting hole of the mounting member, the rod fixing device is attached to the upper end of the electric pole, and the rod is fixed or inserted into the electric pole. Hold the string at the upper end of the rod, pull it up or down in the utility pole, move it up and down to a predetermined position, and then temporarily fix the string to the temporary fixing member. Unscrew and hold the rod so that it is suspended in the utility pole while holding the unfastened string, move the rod to the desired position, temporarily secure the string to the temporary fixing member, Since it is temporarily fixed at the position, the rod fixing device can be efficiently fixed to the utility pole, the rod can be inserted into the utility pole, temporarily fixed, and vertically moved by a very simple operation in a short time.

  The method for using the rod fixing device according to claim 8 is the method for using the rod fixing device according to claim 6, wherein a reinforcing reinforcing bar protruding upward from the upper end surface of the utility pole is provided at the lower end of the long nut of the rod fixing device. Insert the screw from the side, screw the screw into a small diameter screw hole formed on the side near the lower end of the long nut, and tighten the screw until the tip of the screw hits the reinforcing bar. Fixedly attached to the reinforcing bar, the rod fixing device is fixedly held at the top of the utility pole, and the rod is fixed by holding the string attached to the upper end of the inserted rod or trying to be inserted into the utility pole. The rod is moved up and down to a predetermined position by pulling up or down in the electric pole, and then the string is wound around the bolt, and the nut is screwed onto the bolt around which the string is wound and tightened. Temporarily fix the rod with a nut, temporarily fix the rod in place, and if necessary, loosen the nut to release the strap, and hold the rod While holding it in the power pole, pulling the rod up or down and moving it to the desired position, wind the string around the bolt, screw the nut onto the bolt and tighten it, and tighten the string to the bolt The gist is to temporarily fix the rod in a predetermined position by sandwiching it between the nuts.

  In the method of using the rod fixing device according to claim 8, the reinforcing bar of the utility pole is inserted into the long nut, and the screw is screwed into the screw hole formed on the side surface of the long nut and tightened to be fixed to the reinforcing bar. Install, try to be inserted into the power pole, hold the string at the upper end of the inserted rod and pull it up or down in the power pole and move it up and down to a predetermined position, then wind the string around the bolt, Screw the nut onto the bolt and tighten it. Temporarily fix the string with the nut. Temporarily fix the rod in place.If necessary, loosen the nut to release the string and fix the string. Pull the rod up and down to move it to the desired position, then wind the string around the bolt, screw the nut onto the bolt and tighten it, and temporarily clamp the string between the bolt and nut The rod To temporarily fixed to the location, a short time efficiently fixed rod fixation device to the utility pole by a very simple operation, insertion into a utility pole rod, tacking, it is possible to perform vertical movement.

  The method of using the rod fixing device according to claim 9 is the method of using the rod fixing device according to claim 7 or 8, wherein the rod fixing device is inserted into the number of temporary fixing members and rods included in the rod fixing device. The gist is that it is attached to the upper end of the utility pole by the number corresponding to the number of rods.

  In the method of using the rod fixing device according to the ninth aspect, the rod fixing device is attached to the upper end of the utility pole by the number corresponding to the number of temporary fixing members and the number of rods.

  According to the present invention, the rod fixing device is fixed to the top opening of the electric pole by inserting the reinforcing bar for reinforcing the electric pole protruding from the upper end surface of the electric pole into the attachment hole of the attachment member. Even if the number of rods increases and the number of rods increases and the height of the utility poles is high, for example, one worker can easily and easily fix the rod fixing device in a short time and efficiently. Can be secured to the top opening.

  According to the present invention, since the temporary fixing member is composed of a bolt and a nut, the rod fixing device is constructed by winding a string attached to the upper end of the rod around the bolt, and then screwing and tightening the nut. Can be temporarily and securely fixed.

  According to the present invention, the rod fixing device is used in such a manner that the reinforcing rod of the electric pole is inserted into the mounting member and the rod fixing device is fixed to the upper end of the electric pole and is about to be inserted or inserted into the electric pole. Hold the string of the rod and move it up and down to a predetermined position, and then temporarily fix the string to the temporary fixing member. The rod is temporarily fixed to the temporary fixing member, and the rod is temporarily fixed to the predetermined position. Therefore, the rod fixing device can be efficiently fixed to the utility pole in a short time by an extremely simple operation. It can be inserted into the utility pole, temporarily fixed, and moved up and down.

  According to the present invention, the rod fixing device is used by inserting the reinforcing bar of the utility pole into the long nut, screwing the screw into the screw hole of the long nut and tightening it, and fixing it to the reinforcing reinforcing bar, and inserting it into the utility pole. Hold the string of the inserted rod or move it up and down to a predetermined position, wind the string around the bolt, screw the nut into the bolt and tighten it, and temporarily clamp the string with the nut Then, if necessary, loosen the nut to release the temporary fixing of the string, hold the string and move the rod to the desired position, wind the string around the bolt, tighten with the nut and temporarily fix the rod, Is temporarily fixed at a predetermined position, so that the rod fixing device can be efficiently fixed to the utility pole, inserted into the utility pole, temporarily fixed, and vertically moved by a very simple operation in a short time.

  Hereinafter, the best mode for carrying out the present invention (hereinafter referred to as an embodiment) will be described with reference to the drawings.

  FIG. 1 is a perspective view showing a rod fixing device according to an embodiment of the present invention, and FIGS. 2 (a) and 2 (b) are a front view and a rear view of the rod fixing device shown in FIG. A rod fixing device 10 shown in FIGS. 1, 2 (a) and (b) has a long nut 11 which is a cylindrical member at the lower part, and is formed at the upper end of the long nut 11 with, for example, a reinforcing bar having a diameter of about 10 mm. The connected connecting member 13 is attached, and an arc member 15 which is a curved fixed member formed in an arc shape is attached on the connecting member 13.

  When the rod fixing device 10 is attached to the top of the utility pole, the arc member 15 is formed such that the arc-shaped spread of the arc member 15 partially matches the circular shape of the outer periphery of the top of the utility pole. That is, the arc member 15 is formed in a circular arc shape and curved in the circumferential direction of the top opening of the utility pole.

  In addition, a plurality of temporary fixing members 17 in the present embodiment, each including a bolt 17a and a nut 17b, are attached to the arc member 15 at a predetermined interval in the circumferential direction, that is, in the spreading direction. The bolt 17a of the temporary fixing member 17 is passed through a hole formed in the arc member 15, and when the head portion hits the arc member 15, the head portion is fixed to the arc member 15 by, for example, adhesion or welding. Has been. After the bolt 17a is fixed to the arc member 15 in this way, the nut 17b is screwed onto the threaded portion of the bolt 17a protruding from the arc member 15.

  The nut 17b has a knob like a butterfly wing, and is easily tightened by screwing the nut 17b into the bolt 17a. As described above, the temporary fixing member 17 including the bolt 17a and the nut 17b is in a state in which the nut 17b is removed or the nut 17b is slightly loosened so that the threaded portion of the bolt 17a appears between the nut 17b and the arc member 15. When the aramid rod string is wound around the threaded portion of the bolt 17a and the nut 17b is screwed into the threaded portion and tightened, the aramid rod string is temporarily sandwiched between the nut 17b and the arc member 15 and temporarily tightened. Fixed to.

  In this embodiment, the fact that the aramid rod string is fastened and temporarily fixed between the bolt 17a and the nut 17b of the temporary fixing member 17 in this embodiment is referred to as “temporary fixing”.

  The connecting member 13 attached to the upper end of the long nut 11 is inserted into the long nut 11 from above in FIGS. 1, 2A and 2B and cannot be clearly seen. A support bar extending downward is provided at the center lower side. This support bar is inserted into the screw hole of the long nut 11 from above, whereby the connecting member 13 is fixed to the long nut 11.

  The connection member 13 is fixed to the long nut 11 simply by inserting the support rod of the connection member 13 into the long nut 11. Therefore, in order to further secure the fixing, the long nut 11 has two small-diameter screw holes 11a and 11b formed near the upper portion and the lower portion of the side portion thereof.

  That is, after the support rod of the connecting member 13 is inserted into the long nut 11, a small screw is screwed into the small diameter screw hole 11 a above the long nut 11, and the tip of the small screw is connected to the support rod of the connecting member 13. If the small screw is tightened so as to abut, the connecting member 13 is securely fixed to the long nut 11.

  The small diameter screw hole 11b below the long nut 11 is used to fix the rod fixing device 10 to the utility pole. Specifically, as will be described later, in order to fix the rod fixing device 10 to the utility pole, the reinforcing reinforcing bar protruding from the upper end surface of the concrete utility pole is inserted into the long nut 11 of the rod fixing device 10 from below. After the insertion, another small screw is screwed into the small-diameter screw hole 11b below the long nut 11, and the small screw is tightened so that the tip of the small screw abuts against the reinforcing bar of the electric pole. The long nut 11 is securely fixed to the reinforcing steel bars, and the rod fixing device 10 is thereby securely fixed to the top of the utility pole 1.

  The connecting member 13 having such a support rod connects the circular arc member 15 to the long nut 11 and is formed of, for example, a reinforcing bar. In the structure shown in FIGS. 1, 2 (a), (b), It has an annular portion formed in an elongated and slightly angular shape. The annular portion is formed in the same arc shape as the arc member 15 in the lateral direction, and the arc member 15 is fixedly attached to the upper side of the arc portion by welding or the like, for example. Further, the connecting member 13 is provided with a reinforcing bar 13a vertically so as to reinforce the central portion thereof.

  The rod fixing device 10 configured as described above is used by being attached to the top opening at the upper end of the utility pole 1 as shown in FIG. Specifically, as shown in FIG. 4 (a), the hollow concrete utility pole 1 has a plurality of reinforcing bars 21 protruding upward from the upper end surface thereof, in FIG. 4 (a). However, the long nut 11 of the rod fixing device 10 shown in FIG.

  In FIG. 3, the rod-like members suspended in the utility pole 1 and temporarily fixed to the rod fixing device 10 are three rods indicated by reference numerals 31a, 31b and 31c, specifically, three aramids in this embodiment. The rod fixing device 10 shown in FIG. 1 includes four rods and one guide rod denoted by reference numeral 33 and has three temporary fixing members 17, so that the aramid rods 31 a, 31 b, 31 c and the guide rod 33 are provided. Two rod fixing devices 10 are used to suspend the four.

  Therefore, as shown in FIG. 4A, the six reinforcing bars 21 protruding from the upper end surface of the utility pole 1 are cut into four pieces as shown in FIG. Leave only. Then, the two reinforcing bars 21 are inserted into the long nuts 11 of the two rod fixing devices 10 from below as shown in FIG. 3, and then the small screws 35 are inserted into the small-diameter screw holes 11 b below the long nuts 11. When the small screw 35 is tightened so that the tip of the small screw 35 abuts against the reinforcing bar 21 of the utility pole 1, the rod fixing device 10 is securely fixed to the reinforcing bar 21. The fixing device 10 is fixed to the upper part of the utility pole 1 as shown in FIG.

  That is, the two rod fixing devices 10 attached to the upper part of the utility pole 1 are fixed by inserting the reinforcing bar 21 of the utility pole 1 into the long nut 11 and screwing the small screw 35 into the screw hole 11b and tightening. Is done.

  In FIG. 3, the three aramid rods 31a, 31b, 31c and one guide rod 33 inserted into the utility pole 1 are attached with aramid rod strings 53a, 53b, 53c and 53d at their upper ends. The aramid rod string 53 is temporarily fixed to the temporary fixing member 17 of the rod fixing device 10, whereby the three aramid rods 31 and the one guide rod 33 are suspended in the utility pole 1. .

  That is, the first aramid rod 31a among the three aramid rods 31a, 31b, 31c is the temporary fixing member 17 on the left front side of the arc member 15 of the rod fixing device 10 whose aramid rod string 53a is shown on the left side in the drawing. The aramid rod 31b is temporarily fixed to the temporary fixing member 17 on the right side of the arc member 15 of the rod fixing device 10, and the third aramid rod 31c The aramid rod string 53c is temporarily fixed to the temporary fixing member 17 in the middle of the arc member 15 of the rod fixing device 10 shown on the right side in the drawing. Further, the guide rod 33 is temporarily fixed to a temporary fixing member 17 whose aramid rod string 53d is in the middle of the arc member 15 of the rod fixing device 10 shown on the left side in the drawing. Thus, the three aramid rods 31 a, 31 b, 31 c and one guide bar 33 temporarily fixed to the temporary fixing member 17 of the rod fixing device 10 are in a state of being suspended in the utility pole 1.

  As described above, the work of attaching the rod fixing device 10 to the upper end of the utility pole 1 is simply to temporarily insert the reinforcing bar 21 of the utility pole 1 into the long nut 11 and the rod fixing device 10 is temporarily fixed to the utility pole 1. Since the screw screw 11 is screwed into the screw hole 11b of the rod fixing device 10 temporarily fixed in this manner and tightened, the rod fixing device 10 is fixed to the upper end of the utility pole 1. Compared with the conventional one, it can be performed efficiently and reliably in a very short time, and can be performed safely and easily, for example, by a single worker even at a high place such as the top of the utility pole 1. Even if the number of rod-shaped members such as aramid rods is increased, it can be performed very easily regardless of the number.

  Next, referring to FIG. 3 and FIG. 5, the aramid rod string attached to the upper end of the aramid rod 31 is temporarily attached using the rod fixing device 10 fixed to the upper end of the utility pole 1 as shown in FIG. A method of using the rod fixing device 10 that is temporarily fixed to the fixing member 17 will be described.

  The rod fixing device 10 moves the aramid rod 31 up and down to a predetermined position by lifting or lowering the aramid rod 31 inserted into the utility pole 1 while moving the aramid rod 31 to a predetermined position. The aramid rod string is temporarily fixed to the temporary fixing member 17 and the aramid rod 31 is temporarily fixed at a predetermined position. This operation is performed as a first operation from the side opening below the utility pole 1 to the utility pole 1. The work of temporarily fixing the aramid rod string 53 attached to the upper end of the aramid rod 31 pulled up one by one to the upper portion of the temporary fixing member 17 of the rod fixing device 10 is sequentially applied to all the plurality of aramid rods 31. There is work to do.

  Further, as the second work, a plurality of aramid rods 31 in which the aramid rod string 53 is temporarily fixed to the temporary fixing member 17 of the rod fixing device 10 after the inside of the electric pole 1 is pulled up in the first work are connected to the electric pole. A plurality of aramid rods are inserted into the annular rod holding portion of the rod placement auxiliary tool in order to increase the reinforcement by evenly arranging them in the circumferential direction within the rod 1. There is an operation of performing all 31 in order.

  First, the first operation will be described with reference to FIG. In FIG. 5, the first aramid rod 31a has already been pulled up from the side opening 51 below the utility pole 1 to above the utility pole 1, and an aramid rod string 53a attached to the upper end of the aramid rod 31a is attached to the rod fixing device 10. The tip of the second aramid rod 31b is carried to the vicinity of the side opening 51 of the utility pole 1 and is attached to the aramid rod string 53b at the tip of the aramid rod 31b. On the other hand, a state is shown in which a lower end portion of a suspension string 57 such as a fishing line hanging from the top opening 55 of the utility pole 1 to the lower side of the utility pole 1 is tied by a knot 53n.

  As described above, with the aramid rod string 53b of the second aramid rod 31b being tied to the hanging string 57 by the knot 53n, the hanging string 57 is pulled upward from the top opening 55 of the utility pole 1, for example, by the take-up reel 81. When wound up in this way, the second aramid rod 31b is pulled up in the utility pole 1 from the side opening 51, and the upper end of the aramid rod 31b is pulled up above the utility pole 1.

  Therefore, the aramid rod string 53b at the upper end of the second aramid rod 31b is temporarily fixed to the temporary fixing member 17 of the rod fixing device 10 in the pulled up state. As a result, the second aramid rod 31b is also suspended in the utility pole 1 in the same manner as the first aramid rod 31a.

  The aramid rod string 53b is temporarily fixed to the temporary fixing member 17, as described above, after the aramid rod string 53b is wound around the bolt 17a constituting the temporary fixing member 17, and then the aramid rod string 53b is attached to the bolt 17a. When the aramid rod string 53b is temporarily fixed to the temporary fixing member 17, the tip of the aramid rod string 53b wound around the bolt 17a remains. For example, if the tip of the aramid rod string 53b is temporarily adhered to the outer periphery of the utility pole 1 with, for example, adhesive tape, the remaining tip of the aramid rod string 53b is suspended near the top of the utility pole 1. Can be prevented, and work efficiency can be improved.

  Further, if the third aramid rod 31c is similarly pulled up from the side opening 51 in the utility pole 1 and the aramid rod string 53c is temporarily fixed to the temporary fixing member 17 of the rod fixing device 10, as shown in FIG. The aramid rod strings 53a, 53b, 53c of the three aramid rods 31a, 31b, 31c are temporarily fixed to the temporary fixing members 17 of the rod fixing device 10, respectively.

  In FIG. 3, a guide rod 33 is provided in the center of the aramid rods 31a, 31b, 31c in the utility pole 1, and an aramid rod string 53d attached to the upper end of the guide rod 33 is a rod fixing device. 10 is temporarily fixed to the temporary fixing member 17. The temporary fixing method of the aramid rod string 53 d attached to the upper end of the guide rod 33 to the temporary fixing member 17 is as follows. The guide rod 33 is inserted from above the utility pole 1 together with a rod arrangement adjusting jig (not shown), and the method of inserting the guide rod 33 is not directly related to the present invention. Therefore, the description thereof is omitted and the illustration of the guide rod 33 is omitted in FIG.

  Next, the second operation will be described with reference to FIGS. 6 (a) and 6 (b). FIG. 6 (a) shows that, as a result of the first work, as shown in FIG. 3, three aramid rods 31a, 31b, 31c are inserted into the utility pole 1, and the aramid rod strings 53a, 53b, 53c are inserted. Are fixed to the temporary fixing member 17 of the rod fixing device 10, and the three aramid rods 31a, 31b, 31c are arranged so that the three aramid rods 31a, 31b, 31c can be evenly arranged in the inner circumferential direction in the utility pole 1. In the middle of 31b and 31c, the first rod arrangement auxiliary tool 61 is already provided, and each aramid rod is inserted into the annular rod holding portion 63 of the rod arrangement auxiliary tool 61. In addition to this, the second rod arrangement auxiliary tool 61 is shown inserted from the side opening 51 of the utility pole 1 in the middle using the operation tool 67. In FIG. 6, the guide bar 33 shown in FIG. 3 is not shown for simplicity because it is not directly related to the gist of the present invention.

  Although not shown, the first rod placement auxiliary tool 61 provided in the middle of the utility pole 1 is suspended from the top opening 55 of the utility pole 1 by a string or the like. Ten temporary fixing members 17 are temporarily fixed, whereby the first rod placement auxiliary tool 61 is set in the middle of the utility pole 1. In addition, the second rod placement auxiliary tool 61 inserted using the operation tool 67 in the middle of the side opening 51 of the utility pole 1 is also suspended from the top opening 55 of the utility pole 1 by a string (not shown), It is temporarily fixed to the temporary fixing member 17.

  As shown in FIG. 6 (b), the rod placement auxiliary tool 61 is configured by attaching three rod holding portions 63 formed in a ring shape or a U shape with reinforcing bars or the like to the outer peripheral portion of an annular frame 65. ing. The rod placement auxiliary tool 61 has a guide hole for inserting the guide rod 33 shown in FIG. 3 in detail. This guide hole is similar to the guide rod 33 in the present invention. Since it is not directly related to the gist, it is not shown for simplicity.

  The three rod holding portions 63 of the rod placement auxiliary tool 61 shown in FIG. 6B are equally arranged in the circumferential direction of the frame 65, that is, in the circumferential direction of the utility pole 1, and these three rod holding portions 63 When three aramid rods 31 are inserted into the portion 63, the three aramid rods 31 are evenly arranged in the inner circumferential direction in the utility pole 1, and thus the aramid rod 31 is placed in the utility pole 1 in this way. Then, for example, bean gravel or crushed stone is introduced into the gaps between the aramid rods 31a, 31b, and 31c, and mortar, concrete, and the like are sequentially added to reinforce the utility pole 1 as a whole. .

  Therefore, as shown in FIG. 6A, the rod holding of the second rod placement auxiliary tool 61 inserted into the power pole 1 using the operation tool 67 in the middle from the side opening 51 of the power pole 1. Each of the three aramid rods 31a, 31b, 31c is inserted into the portion 63 one by one from the lower end portion, and each aramid rod string 53a, 53b, 53c is temporarily fixed to the temporary fixing member 17 of the rod fixing device 10, Then, the rod placement auxiliary tool 61 is lifted upward in the electric pole 1 and moved to a predetermined position. Next, each aramid rod 31 is pulled up to a predetermined rod position, and then each aramid rod string 53 is moved to the rod fixing device 10. The operation of temporarily fixing to the temporary fixing member 17 will be described in detail.

  As illustrated in FIG. 6A, the second rod arrangement auxiliary tool 61 is inserted into the utility pole 1 using the operation tool 67 from the side opening 51 of the utility pole 1. Then, the lower ends of the three aramid rods 31 are slightly above the second rod placement aid 61. Accordingly, in this state, the first aramid rod 31a among the three aramid rods 31 is temporarily unfixed to the temporary fixing member 17 of the aramid rod string 53a, and the aramid rod string 53a is connected to the top opening 55 of the utility pole 1. The aramid rod 31a is gradually pulled down while the aramid rod 31a is suspended in the utility pole 1 while being held by hand, for example.

  In this manner, the lower end portion of the aramid rod 31a is operated to be inserted into one rod holding portion 63 of the second rod placement auxiliary tool 61 while gradually lowering the aramid rod 31a. The operation of inserting the lower end portion of the aramid rod 31a into the rod holding portion 63 in this way is performed by using, for example, a rod lower end operation jig (not shown) having a bifurcated tip end or the like. It is desirable to carry out while adjusting the position of the part.

  In this way, after the lower end portion of the first aramid rod 31a is inserted into the rod holding portion 63 of the rod placement auxiliary tool 61, the aramid rod string 53a is temporarily fixed to the temporary fixing member 17, and then the second rod Similarly, the aramid rod 31b is released from the temporary fixing member 17 of the aramid rod string 53b, pulled down while being held while the aramid rod 31b is held by the aramid rod string 53b, and the lower end of the aramid rod 31b is After being inserted into the second rod holding portion 63 of the placement auxiliary tool 61, the aramid rod string 53 b is temporarily fixed to the temporary fixing member 17.

  Next, the third aramid rod 31c is similarly inserted into the rod holding portion 63 of the second rod placement auxiliary tool 61, and the aramid rod string 53b is temporarily fixed to the temporary fixing member 17, thereby three When the insertion of all of the aramid rods 31a, 31b, 31c into the second rod placement auxiliary tool 61 and the temporary fixing of the aramid rod strings 53a, 53b, 53c to the temporary fixing member 17 are completed, While holding the string (not shown) hanging from the top opening 55 of the utility pole 1 as described above, the second rod placement aid 61 is pulled up in the utility pole 1 and the second rod placement aid 61 is moved. 6, the string is pulled up to a predetermined position above the electric pole 1 as indicated by a dotted line 71, and the string is temporarily fixed to the temporary fixing member 17 of the rod fixing device 10 at that position.

  When the second rod arranging auxiliary tool 61 is pulled up to a predetermined position in the utility pole 1 and the string is temporarily fixed, the upper ends of the three aramid rods 31a, 31b, 31c are next the top openings 55 of the utility pole 1. The aramid rods 31a, 31b, 31c are pulled up one by one so as to come close to, moved to a predetermined position, and temporarily fixed at that position. As described above, all the three aramid rods 31 are inserted into the second rod arrangement auxiliary tool 61, and the aramid rod strings 53 are also temporarily fixed to the temporary fixing members 17 of the rod fixing device 10. Further, the same method can be used when the aramid rod 31 is inserted into the third and more rod placement auxiliary tools 61.

  In the above embodiment, the rod fixing device 10 includes three temporary fixing members 17 via the arc member 15, and uses long nuts for fixing to the utility pole 1. Although the case where it has the connection member 13 between these is shown, this invention is not limited to such a structure.

  That is, the fixing member to which the temporary fixing member 17 is attached does not need to be the circular arc member 15 and does not need to be in the circular arc shape. The temporary fixing member 17 is simply fixed to the cylindrical member such as the long nut 11. Any fixing member can be used.

  Furthermore, three temporary fixing members 17 do not need to be provided in one rod fixing device 10, and one temporary fixing member 17 may be provided in one rod fixing device 10. In addition, four or more temporary fixing members 17 may be provided in one rod fixing device 10. Specifically, the number of rod fixing devices or the number of temporary fixing members possessed by the rod fixing device is determined according to the number of aramid rods inserted into the utility pole and the number of temporary fixing members possessed by the rod fixing device. It is.

  Further, there is no need for the connecting member 13 between the long nut 11 and the arc member 15. For example, the long nut 11 or the circular arc member 15 may be long up to the connecting member 13. Further, the long nut 11 does not have to be a nut, and it is only necessary to insert a reinforcing bar 21 that protrudes upward from the upper end of the utility pole 1 and easily fix the rod fixing device 10 to the reinforcing bar 21. Yes, there is no need for a screw to be formed on the inner peripheral surface like a long nut, and there is no need for a cylindrical member like a long nut, and the reinforcing bar 21 is simply inserted from the lower end side and attached. Any attachment member having a hole may be used.

  Furthermore, although two rod fixing devices 10 are attached to the top opening 55 at the upper end of the utility pole 1 and three aramid rods 31 are inserted into the utility pole 1, the aramid rods 31 are limited to three. Any number of books can be used.

It is a perspective view which shows the structure of the rod fixing device concerning one Embodiment of this invention. (a) And (b) is the front view and back view of a rod fixing device which are respectively shown in FIG. It is a perspective view which shows the use condition which attached the rod fixing device shown in FIG. 1 to the top opening of the upper end of a utility pole. It is a perspective view which shows the reinforcing bar which protrudes in the upper end surface of the utility pole shown in FIG. It is sectional drawing for demonstrating the operation | work which attaches the rod fixing device shown in FIG. 1 to the top opening of the upper end of a utility pole, and inserts the reinforcing aramid rod from the side opening of a utility pole. (a) is a cross section for explaining the work of attaching the rod fixing device shown in FIG. 1 to the top opening at the upper end of the utility pole and inserting the aramid rod inserted into the utility pole into the rod holding part of the rod placement aid It is a figure and (b) is a perspective view which shows the auxiliary tool for rod arrangement | positioning. It is a perspective view which shows the structure of the conventional rod fixing device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Utility pole 10 Rod fixing device 11 Long nut 11a, 11b Screw hole 13 Connecting member 15 Arc member 17 Temporary fixing member 17a Bolt 17b Nut 21 Reinforcing bar 31a, 31b, 31c Aramid rod 51 Side opening 55 Top opening 53a, 53b, 53c Aramid rod string 61 Auxiliary tool 63 for rod arrangement Rod holding part

Claims (9)

A rod fixing device that is attached to the top opening of a concrete electric pole and holds a reinforcing rod that is inserted into the electric pole and suspended from the top opening of the electric pole.
A mounting member having a mounting hole to which a reinforcing bar for reinforcing the power pole protruding upward from the upper end surface of the outer periphery of the power pole is inserted from the lower end side; and
A temporary fixing member for temporarily fixing the string attached to the upper end of the rod suspended in the electric pole;
A rod fixing device, comprising: a fixing member attached to an upper portion of the attachment member and fixedly attaching the temporary fixing member. The mounting member includes a cylindrical member having a small-diameter screw hole formed at a right angle on a side portion near the lower portion and threaded on the inner peripheral surface,
The cylindrical member is inserted into the mounting hole from the lower end side and attached to the reinforcing reinforcing bar, and then a screw is screwed into the screw hole, and the tip of the screw is pushed into the reinforcing reinforcing bar. The rod fixing device according to claim 1, wherein the reinforcing steel bar is fixedly attached by being tightened so as to be applied. The fixing member has an arc member that is formed in an arc shape in the circumferential direction of the top opening of the utility pole,
The rod fixing device according to claim 1 or 2, wherein a plurality of the temporary fixing members are attached to the arc member at a predetermined interval in the circumferential direction.   4. The connecting member according to claim 1, further comprising a connecting member provided between the mounting member and the fixing member so as to connect the fixing member so as to be separated from the mounting member. 5. Rod fixing device.   The temporary fixing member is fixedly attached to the fixing member, a bolt around which a string attached to the upper end of the rod is wound, and a bolt that is screwed into the bolt and temporarily sandwiches the wound string. The rod fixing device according to any one of claims 1 to 4, further comprising a nut that is tightened so as to be stopped. The mounting member is composed of a long nut in which a thread portion is formed on the inner peripheral surface of the mounting hole into which the reinforcing reinforcing bar is inserted from the lower end side.
This long nut has a small-diameter screw hole formed on the side surface near the lower end side of the long nut into which the reinforcing bar is inserted,
After the reinforcing bar is inserted into the mounting hole, a screw is screwed into the small diameter screw hole, and the mounting member is fixed to the reinforcing bar by tightening the screw until the tip of the screw hits the reinforcing bar The rod fixing device according to any one of claims 1 to 5, wherein the rod fixing device is fixedly held and fixedly held at the top of the utility pole. A method of using the rod fixing device according to any one of claims 1 to 5,
The reinforcing rod protruding upward from the upper end surface of the utility pole is inserted into the mounting hole from the lower end side of the mounting member of the rod fixing device to fix the mounting member to the reinforcing rebar, thereby fixing the rod fixing device to the upper end of the utility pole. Attached to the
The rod attached to the upper end of the rod inserted in the utility pole is moved up and down to a predetermined position and then temporarily fixed to a temporary fixing member, and the rod is temporarily fixed at a predetermined position. How to use the rod fixing device. A method for using the rod fixing device according to claim 6,
Insert a reinforcing bar protruding upward from the upper end surface of the utility pole into the long nut of the rod fixing device from the lower end side,
Screw the screw into a small-diameter screw hole formed on the side near the lower end of the long nut, and tighten the screw until the tip of the screw hits the reinforcing bar. A method of using the rod fixing device, wherein the rod fixing device is fixedly held at the top of the utility pole.   9. The rod fixing device is attached to the upper end of the utility pole by the number corresponding to the number of temporary fixing members of the rod fixing device and the number of rods inserted in the utility pole. A method of using the described rod fixing device.

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