JP7043981B2 - How to install the stand-up hardware adjuster and intermediate junction box - Google Patents

Description

The present invention relates to a standing metal adjusting tool for supporting a standing metal in a manhole, and a method for installing an intermediate junction box supported by the standing metal.

Power cables laid in underground pipelines and the like, so-called underground cables, are connected, for example, in an intermediate junction box installed in a manhole. In the intermediate junction box, mounting brackets are attached to the standing metal fittings installed by directly driving anchor bolts or the like on the wall surface in the manhole, and the intermediate junction box is fixed to the standing metal fittings via the mounting brackets.

The intermediate junction box must be installed in the specified position in the manhole. The standing hardware is provided with a plurality of bolt holes at a specified pitch along the length direction. Conventionally, the vertical position of the intermediate junction box is adjusted by changing the bolt holes for mounting the mounting hardware. Was. Further, conventionally, the position of the intermediate junction box is adjusted in the left-right direction by adjusting the position of the standing metal.

Techniques related to the support of a particular object include, specifically, conventionally, for example, the upper edge of a base material fixed substantially horizontally to the skeleton and the upper clip provided on the upper part of the lower panel. A technique relating to a panel weight receiving portion and a panel mounting structure in which a connector that is locked and extends above the upper end side of the lower panel is sandwiched by a lower clip provided at the lower part of the upper panel. (For example, see Patent Document 1 below).

Further, as a related technique, specifically, conventionally, for example, a frame material having a gripping mechanism for gripping a solar cell panel and having a predetermined length, and a frame material that is supported from below and a predetermined paint is applied. There has been a technique for a frame for a solar cell panel including a plurality of block materials made of a resin member (see, for example, Patent Document 2 below).

Further, as a related technique, specifically, conventionally, for example, a substantially rectangular opening extending in the length direction is formed in a substantially cylindrical main body embedded in an ALC panel, and one end of a panel mounting bolt is formed. Anchor that engages the panel mounting bolt with the main body by the locking portion by rotating the panel mounting bolt in the circumferential direction with the provided T-shaped locking portion inserted in the opening. There was a technique related to metal fittings (see, for example, Patent Document 3 below).

Japanese Unexamined Patent Publication No. 2017-122386 JP-A-2017-189030 Japanese Unexamined Patent Publication No. 2008-261906

However, the size of the intermediate junction box varies depending on the manufacturer, voltage, etc., and in the conventional technology described above, anchor bolts are directly placed on the wall surface inside the manhole to fix the standing metal, so the cable When an intermediate junction box with a different size from the previously installed intermediate junction box is newly installed due to the replacement of the intermediate junction box, the position of the newly installed intermediate junction box in the left-right direction fits in the specified position. There was a problem that it was difficult to install it.

In the above-mentioned conventional technology, the connection position in the newly installed intermediate junction box is different from the connection position in the previously installed intermediate junction box due to the difference in size and the like, and the connection position is deviated. In this case, in order to adjust the position of the intermediate junction box to be newly installed in the left-right direction, it is necessary to change the position of the standing metal in response to the deviation of the connection position, that is, to re-strike the anchor bolts. There is a problem that the work is troublesome, the burden on the worker is heavy, and the burden on the side wall of the manhole is also heavy.

In addition, if the position of the anchor bolt to be re-strike interferes with the reinforcing bar in the manhole, the position of the anchor bolt must be changed according to the position of the reinforcing bar in the manhole, which requires more time and effort for the construction work. There was a problem that the burden on the person was heavy and the burden on the side wall of the manhole was also heavy.

Further, the conventional technique described in Patent Document 1 described above has a problem that it is difficult to apply to a heavy junction box because sufficient strength for supporting the junction box cannot be secured. Further, the conventional technique described in Patent Document 2 described above has a problem that it is difficult to adjust the position of the junction box in the left-right direction once it is attached.

Further, in the conventional technique described in Patent Document 3 described above, the anchor fitting must be embedded in the inside of the ALC in advance. Therefore, when this technique is applied to the junction box, the anchor fitting is contained in the junction box. There is a problem that it is difficult to apply to a heavy junction box because the same member as the above must be provided and the structure of the junction box must be changed.

It is an object of the present invention to provide a standing hardware adjuster and a method for installing an intermediate junction box, which can reduce the burden on the operator for installing the intermediate junction box in order to solve the above-mentioned problems caused by the prior art. And.

Further, in order to solve the above-mentioned problems caused by the prior art, the present invention is a standing hardware adjusting tool capable of reducing the burden on the operator for installing the intermediate junction box and reducing the burden on the side wall of the manhole. And to provide a method of installing intermediate junction boxes.

In order to solve the above-mentioned problems and achieve the object, the standing metal adjusting tool according to the present invention includes a first member having a rectangular plate shape surrounded by a pair of short sides and a pair of long sides, and a pair. A second member having a rectangular plate shape surrounded by a short side and a pair of long sides, and having a plate surface substantially parallel to a plane including the plate surface of the first member, and the first member. The first member and the second member are connected with a predetermined space between the plane including the plate surface formed by the member 1 and the plane including the plate surface formed by the second member. It is characterized by having a connecting member and a long hole provided in the second member, penetrating the second member in the plate thickness direction, and having the long side direction as the longitudinal direction.

Further, the standing metal adjusting tool according to the present invention is characterized in that, in the above invention, a plurality of the elongated holes are provided along the long side direction.

Further, the standing metal adjusting tool according to the present invention is characterized in that, in the above invention, the first member is provided with a through hole that penetrates the first member in the plate thickness direction.

Further, the standing metal adjusting tool according to the present invention is characterized in that, in the above invention, the through hole has a longer dimension in the long side direction than the dimension in the short side direction.

Further, in the above-mentioned invention, the standing metal adjusting tool according to the present invention has the first member and the second member connected to the connecting member on one long side of the pair of long sides, respectively. The other long side is separated from the connecting member in opposite directions, and the cross section orthogonal to the length direction forms a substantially Z shape.

Further, in the above-mentioned invention, the standing metal adjusting tool according to the present invention is one of the pair of long sides in a state where the first member and the second member face each other with their plate surfaces facing each other. The long side of the eggplant is connected to the connecting member, and the cross section orthogonal to the length direction forms a substantially U-shape.

Further, in the above-mentioned invention, the standing metal adjusting tool according to the present invention has the second member having the other long side of the pair of long sides having the pair of long sides of the first member. It is characterized in that it is positioned closer to the connecting member than the other long side.

Further, in the method of installing the intermediate junction box according to the present invention, the above-mentioned standing metal adjusting tool is fixed to the side wall in the manhole, the standing metal is temporarily fixed to the standing metal adjusting tool, and the intermediate connection used for connecting the cable is used. The position of the metal fitting in the left-right direction with respect to the metal fitting adjuster is adjusted according to at least one of the connection positions of the cable with respect to the box and the intermediate junction box, and the metal fitting with respect to the metal fitting adjustment tool is adjusted at the adjusted position. It is characterized in that the position of the wire in the left-right direction is fixed.

According to the method for installing the standing hardware adjuster and the intermediate junction box according to the present invention, it is possible to reduce the burden on the operator for installing the intermediate junction box.

Further, according to the method of installing the standing hardware adjuster and the intermediate junction box according to the present invention, it is possible to reduce the burden on the operator involved in the installation of the intermediate junction box and to reduce the burden on the side wall of the manhole. It works.

It is explanatory drawing which shows an example of a manhole. It is explanatory drawing which shows the structure of the standing metal adjusting tool of embodiment which concerns on this invention. It is explanatory drawing which shows the dimensional example of the standing metal adjustment tool. It is explanatory drawing (the 1) which shows the installation work example of the intermediate junction box using the standing metal fitting adjuster of embodiment which concerns on this invention. It is explanatory drawing (the 2) which shows the installation work example of the intermediate junction box using the standing metal fitting adjuster of embodiment which concerns on this invention. It is explanatory drawing (the 3) which shows the installation work example of the intermediate junction box using the standing metal fitting adjuster of embodiment which concerns on this invention. It is explanatory drawing which shows another structure of the standing metal adjusting tool of embodiment which concerns on this invention.

Hereinafter, preferred embodiments of the method for installing the standing hardware adjuster and the intermediate junction box according to the present invention will be described in detail with reference to the accompanying drawings.

(An example of a manhole)
First, an example of a manhole to which a standing hardware adjuster is attached will be described. FIG. 1 is an explanatory diagram showing an example of a manhole. In FIG. 1, the manhole 100 is installed underground. The manhole 100 includes a maintenance space portion 101 and a vertical hole portion 102.

The maintenance space portion 101 includes a space (hereinafter referred to as “maintenance space”) 101a surrounded by a bottom plate 103, a side wall 104, and a top plate 105. The maintenance space 101a is secured to a size that allows one or a plurality of workers to enter and work.

A pipeline 107 in which an electric cable 106 such as a power supply side cable and a load side cable is laid is connected to the maintenance space portion 101. The pipeline 107 is buried in the ground, penetrates the side wall 104 of the maintenance space portion 101, and communicates with the maintenance space portion 101. The electric cable 106 laid in the pipeline 107 is connected via the intermediate junction box 108 in the maintenance space 101a.

The vertical hole portion 102 has a tubular shape in which the axial center direction is parallel to the vertical direction. The vertical hole portion 102 communicates with the maintenance space 101a through an opening on the lower end side connected to the top plate 105 of the maintenance space portion 101. The vertical hole 102 communicates the maintenance space 101a with the ground space.

In the vertical hole 102, a lid member 109 is detachably provided in the opening on the upper end side. The lid member 109 normally closes the opening on the upper end side of the vertical hole portion 102, is removed from the vertical hole portion 102 when working in the maintenance space 101a, and communicates the maintenance space 101a with the ground space.

A scaffolding hardware 110 is provided on the inner wall surface of the vertical hole portion 102. The scaffolding hardware 110 may be realized by a plurality of steps directly attached to the inner wall surface of the vertical hole portion 102, or may be realized by a ladder. The ladder that realizes the scaffolding hardware 110 may be movable along the inner wall surface of the vertical hole portion 102.

When a ladder that can be moved along the inner wall surface of the vertical hole 102 is provided, the ladder is lowered when the operator enters the maintenance space 101a and is positioned in the maintenance space 101a, and the last work is completed. When the worker goes up to the ground, he pulls it up and positions it in the vertical hole 102. The inner diameter of the vertical hole 102 is secured to a size that allows the operator to move up and down.

The standing metal adjusting tool 111 of the embodiment according to the present invention is installed in the maintenance space 101a in the manhole 100 and supports the standing metal 112. The standing hardware 112 supports the intermediate junction box 108. Specifically, the standing metal 112 can be realized by, for example, a rod-shaped member having a substantially L-shaped cross section cut along a plane orthogonal to the length direction.

The standing metal piece 112 is provided with a plurality of height adjusting through holes (see reference numeral 502 in FIG. 5) provided along the length direction on one of the two surfaces having a substantially L-shape. There is. Further, the standing metal object 112 is provided with a through hole for fixing a position (see reference numeral 501 in FIG. 5) on the other surface of the two surfaces having a substantially L-shape. Both the through hole for height adjustment and the through hole for fixing the position penetrate each of the two surfaces having a substantially L-shape in the plate thickness direction.

The standing metal 112 is formed by using a metal material such as steel. Specifically, the standing metal 112 can be formed by using stainless steel such as SUS304. Further, specifically, the standing metal 112 may be formed by using, for example, SS400, which is one of the SS materials which is a steel material.

(Structure of standing hardware adjuster 111)
Next, the configuration of the standing hardware adjusting tool 111 according to the embodiment of the present invention will be described. FIG. 2 is an explanatory diagram showing the configuration of the standing metal adjusting tool 111 according to the embodiment of the present invention. In FIG. 2, the standing hardware adjuster 111 is installed in the maintenance space 101a in the manhole 100. The standing hardware adjuster 111 includes a first member 210, a second member 220, and a connecting member 230.

The first member 210, the second member 220, and the connecting member 230 are formed by using a metal material such as steel. Specifically, the first member 210, the second member 220, and the connecting member 230 can be formed by using stainless steel such as SUS304 in the same manner as the standing metal 112, for example. The first member 210 and the second member 220 form a rectangular plate shape surrounded by a pair of short sides and a pair of long sides. The first member 210 and the second member 220 are connected by a connecting member 230.

The connecting member 230 connects the first member 210 and the second member 220 so that the plate surface formed by the first member 210 and the plate surface formed by the second member 220 are substantially parallel to each other. do. Further, the connecting member 230 has a plane including a plate surface formed by the first member 210 (see reference numeral 301 in FIG. 3) and a plane including a plate surface formed by the second member 220 (see reference numeral 302 in FIG. 3). ), The first member 210 and the second member 220 are connected with a predetermined interval.

The first member 210 and the second member 220 are connected to the connecting member 230 on one long side of the pair of long sides provided therein, and the other long side is separated from the connecting member 230 in opposite directions. There is. The standing metal adjuster 111 has a substantially Z-shaped cross section cut along a plane orthogonal to the length direction, like a Z-shaped steel. The first member 210, the second member 220, and the connecting member 230 can be connected by welding, for example.

Alternatively, the first member 210, the second member 220, and the connecting member 230 may be integrally formed. When the first member 210, the second member 220, and the connecting member 230 are integrally formed, specifically, for example, the standing metal adjusting tool 111 can be formed by rolling. Further, when the first member 210, the second member 220, and the connecting member 230 are integrally formed, specifically, for example, a metal plate (steel plate) having a predetermined thickness is bent to adjust the standing metal. Tool 111 may be formed.

The first member 210 is provided with a through hole 211 that penetrates the first member 210 in the plate thickness direction. The inner diameter of the through hole 211 is equal to or larger than the diameter of the shaft portion of the anchor bolt (see reference numeral 401 in FIG. 4) used for attaching the standing metal adjuster 111 to the manhole 100, and the head of the anchor bolt is equal to or larger than the diameter of the shaft portion. It is said to be smaller than the size.

The through hole 211 may have a perfect circular shape or may have an elongated hole shape as shown in FIG. By forming the through hole 211 into a long hole shape, it is possible to adjust the position of the standing metal adjusting tool 111 with respect to the side wall 104 when the standing metal adjusting tool 111 is attached to the manhole 100, which will be described later.

The second member 220 is provided with an elongated hole 221. The elongated hole 221 penetrates the second member 220 in the plate thickness direction, and is provided with the long side direction of the second member 220 (standing metal adjusting tool 111) as the longitudinal direction. The width dimension of the elongated hole 221 is the same as the diameter dimension of the shaft portion of the bolt 222 used when the standing metal fitting 112 to be fixed by the standing metal fitting 111 is attached to the standing metal adjusting tool 111. The size is smaller than the head of 222.

(Dimensional example of standing hardware adjuster 111)
Next, a dimensional example of the standing hardware adjuster 111 will be described. FIG. 3 is an explanatory diagram showing a dimensional example of the standing hardware adjuster 111. In FIG. 3, the standing hardware adjusting tool 111 can have a length dimension L1 of about 650 mm to 700 mm, for example. The length dimension L1 coincides with the length of the long side of the first member 210 and the second member 220. The dimensions H1 and H2 of the short sides of the first member 210 and the second member 220 can be about 50 mm to 60 mm. The dimension H1 and the dimension H2 may be the same or different.

Further, the dimensions L2 and L3 of the elongated hole 221 in the length direction can be, for example, about 100 mm to 200 mm. The dimension L2 and the dimension L3 may be the same or different. In FIG. 3, reference numeral 301 indicates the position of the plane including the plate surface formed by the first member 210. Similarly, reference numeral 302 indicates the position of the plane including the plate surface formed by the second member 220.

(Example of installation work of intermediate junction box 108)
Next, an example of installation work of the intermediate junction box 108 using the standing hardware adjusting tool 111 according to the embodiment of the present invention will be described. 4 to 6 are explanatory views showing an example of installation work of the intermediate junction box 108 using the standing hardware adjusting tool 111 according to the embodiment of the present invention.

When installing the intermediate junction box 108, first, as shown in FIG. 4, the standing hardware adjuster 111 is fixed to the side wall (inner wall surface) 104 of the manhole 100. The standing hardware adjuster 111 is fixed to the side wall 104 of the manhole 100 by using, for example, an anchor bolt 401. More specifically, the standing hardware adjuster 111 is fixed to the side wall 104 of the manhole 100 by a post-installed anchor such as a metal expansion anchor. By fixing the standing hardware adjuster 111 to the side wall 104 of the manhole 100 by forming a cross section orthogonal to the length direction into a substantially Z shape, a gap 402 is provided between the second member 220 and the side wall 104 of the manhole 100. Is formed.

Next, the standing hardware 112 is fixed to the standing metal adjusting tool 111. Specifically, as shown in FIG. 5, first, a bolt 222 for fixing the standing metal 112 is inserted into the elongated hole 221 of the standing metal adjusting tool 111. The bolt 222 is inserted into the standing hardware adjuster 111 from the side wall 104 side of the manhole 100. Next, the bolt 222 inserted in the elongated hole 221 is inserted into the position fixing through hole 501 provided in the standing metal fitting 112. Then, the nut 223 is screwed into the bolt 222 inserted into the elongated hole 221 and the through hole 501 for fixing the position. Thereby, the standing metal 112 can be fixed to the standing metal adjusting tool 111. In FIG. 5, reference numeral 502 indicates a through hole for height adjustment.

Next, the position of the standing hardware 112 in the left-right direction (horizontal direction) is adjusted. Specifically, first, the screw between the bolt 222 and the nut 223 is loosened. At this time, the nut 223 may not be completely removed from the bolt 222, but may be loosened. Next, as shown in FIG. 6, the bolt 222 is slid and moved along the bidirectional arrow 601 in the elongated hole 221. Thereby, the position of the standing metal piece 112 in the left-right direction can be adjusted. Then, the bolt 222 and the nut 223 are tightened in a state where the position of the standing metal piece 112 in the left-right direction (horizontal direction) is determined. As a result, the position of the standing metal piece 112 in the left-right direction can be fixed.

After that, the intermediate junction box 108 is attached to the standing metal 112 by using one of the plurality of height adjusting through holes 502 in the standing metal 112. Before attaching the intermediate junction box 108 to the standing hardware 112, the intermediate junction box 108 may be placed at the bottom of the maintenance space 101a or the like, and the cable on the power supply side and the cable on the load side may be connected.

Conventionally, when the cable on the power supply side and the cable on the load side are connected before the intermediate junction box 108 is attached to the standing metal 112, when the intermediate junction box 108 is fixed to the standing metal 112, the cable depends on the position of the standing metal 112. In some cases, the length of the cable was insufficient and the cable was stretched. Further, the size of the intermediate junction box 108, the connection position of the cable in the intermediate junction box 108, and the like may differ depending on the manufacturer, voltage, and the like.

Conventionally, the standing metal 112 is directly fixed to the side wall 104 of the manhole 100 by driving the anchor bolt 401 on the side wall 104 of the manhole 100. In such a case, the anchor bolt 401 must be re-strike. rice field. For this reason, the construction work is troublesome and the burden on the worker is increased. Further, since the anchor bolts 401 are driven into a plurality of locations on the side wall 104 of the manhole 100, a large load is applied to the side wall 104 of the manhole 100.

On the other hand, by using the standing metal adjusting tool 111 of the embodiment according to the present invention to support the standing metal 112 having a plurality of through holes 502 for height adjustment, the through hole 502 for height adjustment is supported. The height position of the intermediate junction box 108 in the vertical direction (vertical direction) can be adjusted, and the position of the intermediate junction box 108 in the left-right direction can be adjusted by sliding the bolt 222 in the elongated hole 221.

When sliding the bolt 222 in the elongated hole 221, it is sufficient to loosen the tightening condition of the nut 223 with respect to the bolt 222, and it is not necessary to completely remove the nut 223 from the bolt 222. As a result, workability can be improved and the nut 223 can be prevented from being lost.

(Another configuration of the standing hardware adjuster)
Next, another configuration of the standing metal adjusting tool according to the embodiment of the present invention will be described. FIG. 7 is an explanatory diagram showing another configuration of the standing metal adjusting tool according to the embodiment of the present invention. In FIG. 7, the same parts as those of the above-mentioned standing hardware adjuster 111 are indicated by the same reference numerals, and the description thereof will be omitted.

In the standing hardware adjuster 700 shown in FIG. 7, the first member 210 and the second member 220 are connected by the connecting member 230 with their plate surfaces facing each other. The first member 210 and the second member 220 are each connected to the connecting member 230 on one of the long sides of the pair of long sides, and the cross section orthogonal to the length direction has a substantially U-shape. Eggplant.

In the second member 220, the other long side of the pair of long sides that is not connected to the connecting member 230 is connected to the other long side of the pair of long sides of the first member 210. It is positioned on the member 230 side. That is, the plate area of the second connecting member 230 is smaller than the plate area of the first member 210. The first member 210 is provided with a through hole 211 for an anchor bolt 401 at a portion that does not overlap with the second member 220 in a direction orthogonal to the plate surface of the first member 210 and the second member 220. Has been done.

As described above, the standing metal adjusting tools 111 and 700 according to the embodiment of the present invention are paired with a first member 210 having a rectangular plate shape surrounded by a pair of short sides and a pair of long sides. A second member 220 having a rectangular plate shape surrounded by a pair of long sides and a plate surface provided substantially parallel to a plane including the plate surface of the first member 210. The first member 210 and the second member are provided with a predetermined space between the plane including the plate surface formed by the first member 210 and the plane including the plate surface formed by the second member 220. It is provided with a connecting member 230 for connecting the 220, and an elongated hole 221 provided in the second member 220, which penetrates the second member 220 in the plate thickness direction and has a long side direction as a longitudinal direction. It is characterized by.

According to the standing metal adjusting tools 111 and 700 of the embodiment according to the present invention, the standing metal adjusting tool 111 fixed to the side wall 104 of the manhole 100 by using an anchor bolt 401 is provided on the second member 220. The standing metal 112 can be fixed by screwing the nut 223 into the bolt 222 inserted into the long hole 221 and the position fixing through hole provided in the standing metal 112.

Since the standing metal 112 is not directly fixed to the side wall 104 of the manhole 100, the standing metal in the left-right direction is adjusted by adjusting the position of the bolt 222 that connects the standing metal adjusting tool 111 and the standing metal 112 in the elongated hole 221. The position of 112 can be adjusted.

As a result, for example, even after the electric cables 106 on the power supply side and the load side are connected via the intermediate junction box 108 and the intermediate junction box 108 is assembled, the length and tension of the electric cables 106 can be adjusted. The position of the intermediate junction box 108 in the left-right direction can be easily adjusted. As a result, the intermediate junction box 108 can be easily and surely installed at the specified position without re-strike the anchor bolt 401.

Further, when the intermediate junction box 108 having a size different from the previously installed intermediate junction box 108 is newly installed due to the replacement of the electric cable 106 or the like, the anchor bolt 401 does not need to be re-strike. The position of the newly installed intermediate junction box 108 in the left-right direction can be easily adjusted. Thereby, regardless of the size of the intermediate junction box 108, the intermediate junction box 108 can be easily and surely installed at the specified position.

When adjusting the position of the intermediate junction box 108 in the left-right direction, the bolt 222 can be easily slid and moved in the elongated hole 221 simply by loosening the nut 223 without completely removing it from the bolt 222. As a result, the position of the intermediate junction box 108 in the left-right direction can be adjusted steplessly, so that the position of the intermediate junction box 108 in the left-right direction can be finely adjusted.

As described above, according to the standing hardware adjusting tool 111 of the embodiment according to the present invention, the intermediate junction box 108 can be easily and surely installed at the specified position, so that the operator involved in the installation of the intermediate junction box 108 can be installed. It is possible to reduce the burden on the. Further, according to the standing hardware adjusting tool 111 of the embodiment according to the present invention, the intermediate junction box 108 can be installed without re-strike the anchor bolt 401, so that the operator involved in the installation of the intermediate junction box 108 is required. It is possible to reduce the burden on the side wall 104 of the manhole 100 as well as reduce the burden on the manhole 100.

Further, the standing metal adjusting tool 111 according to the embodiment of the present invention is characterized in that a plurality of elongated holes 221 are provided along the long side direction.

According to the standing metal adjusting tool 111 of the embodiment according to the present invention, by providing a plurality of elongated holes 221 in one standing metal adjusting tool 111, the degree of freedom in adjusting the position of the standing metal 112 in the left-right direction is secured. can do. By adjusting the dimension in the short side direction of the second member 220 and the plate thickness dimension of the second member 220, it is possible to secure the strength of the standing metal adjusting tool 111 by providing a plurality of elongated holes 221. can.

Further, the standing hardware adjusting tool 111 according to the embodiment of the present invention is characterized by being provided in the first member 210 and provided with a through hole 211 penetrating the first member 210 in the plate thickness direction. There is.

According to the standing hardware adjuster 111 of the embodiment according to the present invention, the through hole 211 through which the anchor bolt 401 is passed is provided in the first member 210 instead of the second member 220 in which the elongated hole 221 is provided. Therefore, when the bolt 222 is slid in the elongated hole 221, it is possible to prevent the anchor bolt 401 from interfering with the operator's hand and hindering the work. As a result, the burden on the worker can be reduced.

Further, the standing metal adjusting tool 111 according to the embodiment of the present invention is characterized in that the through hole 211 has a shape in which the dimension in the long side direction is longer than the dimension in the short side direction.

The standing metal adjusting tool 111 of the embodiment according to the present invention can adjust the position where the anchor bolt 401 is driven without changing the position of the standing metal adjusting tool 111 with respect to the side wall 104 of the manhole 100. As a result, the position of the standing metal adjusting tool 111 with respect to the side wall 104 of the manhole 100 is not affected by the position where the anchor bolt 401 is driven, and the degree of freedom in attaching the standing metal adjusting tool 111 can be secured.

Further, in the standing hardware adjusting tool 111 of the embodiment according to the present invention, the first member 210 and the second member 220 are respectively connected to the connecting member 230 on one long side of the pair of long sides. The other long side is separated from the connecting member 230 in opposite directions, and the cross section orthogonal to the length direction has a substantially Z shape.

According to the standing metal adjusting tool 111 of the embodiment according to the present invention, the standing metal adjusting tool 111 is fixed to the side wall 104 of the manhole 100 by forming a cross section orthogonal to the length direction into a substantially Z shape. A gap 402 can be secured between the second member 220 and the side wall 104 of the manhole 100. As a result, after fixing the standing metal adjusting tool 111 to the side wall 104 of the manhole 100, the bolt 222 can be inserted into the elongated hole 221 using the gap 402, and the standing metal adjusting tool 112 can be attached to the standing metal adjusting tool 111.

In this way, the work of fixing the standing metal adjuster 111 to the side wall 104 of the manhole 100 and the work of attaching the standing metal 112 to the standing metal adjusting tool 111 are performed separately in order, for example, the side wall of the manhole 100. It is possible to reduce the burden on the operator by eliminating the restriction that the bolt 222 must be inserted into the elongated hole 221 before fixing the standing metal fitting 111 to the 104.

Further, according to the standing metal adjusting tool 111 of the embodiment according to the present invention, the cross section orthogonal to the length direction has a substantially Z shape so that the plate surfaces of the first member 210 and the second member 220 can be formed. Since the first member 210 and the second member 220 do not overlap in the orthogonal direction, the standing metal adjuster 111 is fixed to the side wall 104 of the manhole 100 when the bolt 222 is slid in the elongated hole 221. It is possible to prevent the anchor bolt 401 from interfering with the operator's hand and hindering the work. As a result, the burden on the worker can be reduced.

Further, according to the standing metal adjusting tool 111 of the embodiment according to the present invention, the cross section orthogonal to the length direction has a substantially Z shape so that the plate surface of the first member 210 and the second member 220 can be formed. When the standing hardware adjuster 111 is viewed from an orthogonal direction, both the first member 210 and the second member 220 can be easily and surely visually recognized. As a result, both the mounting state of the standing metal fitting 111 on the side wall 104 of the manhole 100 and the mounting state of the standing metal fitting 112 on the standing metal fitting 111 can be easily confirmed, and the burden on the operator is reduced. be able to.

Further, in the standing hardware adjusting tool 111 of the embodiment according to the present invention, one of a pair of long sides is provided with the first member 210 and the second member 220 facing each other. It is characterized in that the cross section connected to the connecting member 230 on the long side and orthogonal to the length direction forms a substantially U-shape.

According to the standing hardware adjuster 111 of the embodiment according to the present invention, the cross section orthogonal to the length direction is formed into a substantially U-shape so that the plate surface of the first member 210 and the second member 220 can be formed. The first member 210 and the second member 220 can be overlapped with each other in the orthogonal direction to reduce the size of the standing metal adjusting tool 111. As a result, the worker can hold the standing hardware adjuster 111 as if holding it, which makes it easier to hold, so that the burden on the worker can be reduced. In addition, the handleability of the standing hardware adjuster 111 can be improved, and the space required for installation can be kept small.

Further, in the standing metal adjusting tool 111 of the embodiment according to the present invention, the second member 220 has a pair of long sides and the other long side is a pair of long sides of the first member 210. It is characterized in that it is positioned on the connecting member 230 side with respect to the other long side.

According to the standing metal adjuster 111 of the embodiment according to the present invention, the first member 210 and the second member 220 are connected in a direction orthogonal to the plate surface of the first member 210 and the second member 220. By overlapping, the space required for installing the standing hardware adjuster 111 is kept small, and by providing the through hole 211 in the portion of the first member 210 that does not overlap with the second member 220, the anchor bolt 401 works. It is possible to avoid hindering work by interfering with the hands of people. As a result, the burden on the worker can be reduced.

Further, the mounting state of the standing metal adjusting tool 111 with respect to the side wall 104 of the manhole 100 and the standing metal fitting 112 with respect to the standing metal adjusting tool 111 without taking a posture of looking into the first member 210 through the second member 220. Since both of the mounting states can be easily confirmed, the burden on the operator can be reduced.

Further, in the method of installing the intermediate junction box 108 according to the embodiment of the present invention, the standing metal adjusting tool 111 is fixed to the side wall 104 in the manhole, the standing metal adjusting tool 111 is temporarily fixed to the standing metal adjusting tool 111, and electricity is provided. The position of the standing metal 112 with respect to the standing metal adjusting tool 111 in the left-right direction is adjusted and adjusted according to at least one of the connecting position of the electric cable 106 with respect to the intermediate junction box 108 used for connecting the cable 106 and the intermediate connecting box 108. It is characterized in that the position of the standing metal 112 is fixed with respect to the standing metal adjusting tool 111 at the positioned position.

According to the method of installing the intermediate junction box 108 according to the embodiment of the present invention, the intermediate junction box 108 can be installed without re-strike the anchor bolt 401, so that the operator involved in the installation of the intermediate junction box 108 is required. It is possible to reduce the burden on the side wall 104 of the manhole 100 as well as reduce the burden on the manhole 100.

As described above, the method of installing the standing metal adjuster and the intermediate junction box according to the present invention is useful for the method of installing the standing metal adjusting tool for supporting the standing metal and the intermediate junction box supported by the standing metal in the manhole. In particular, it is suitable for a method of installing a standing metal adjuster and an intermediate junction box that support a standing metal used for installing a heavy object such as an intermediate junction box in a manhole.

100 Manhole 101a Maintenance space 106 Electric cable 108 Intermediate junction box 111, 700 Standing hardware adjuster 112 Standing hardware 210 First member 211 Through hole 220 Second member 221 Long hole 230 Connecting member 401 Anchor bolt 501 Position fixing penetration Hole 502 Through hole for height adjustment

Claims (6)

A metal fitting adjuster that is attached to the side wall in a manhole and supports a plurality of metal fittings that support an intermediate junction box used for connecting cables.
A first member in the shape of a rectangular plate surrounded by a pair of short sides and a pair of long sides,
A second member having a rectangular plate shape surrounded by a pair of short sides and a pair of long sides, and having a plate surface substantially parallel to a plane including the plate surface of the first member.
The first member and the second member are placed at a predetermined distance between the plane including the plate surface formed by the first member and the plane including the plate surface formed by the second member. The connecting member to be connected and
A through hole provided in the first member, penetrating the first member in the plate thickness direction, and penetrating a side wall fixing bolt for fixing the first member to the side wall.
The long side direction is the longitudinal direction , which is provided in the second member and penetrates the second member in the plate thickness direction and penetrates the standing metal fixing bolt for fixing the standing metal. An elongated hole formed with a dimension in the long side direction longer than the dimension in the short side direction ,
Equipped with
A standing metal adjusting tool characterized in that a plurality of the elongated holes are provided along the long side direction . The standing metal adjusting tool according to claim 1 , wherein the through hole has a longer dimension in the long side direction than the dimension in the short side direction. The first member and the second member are each connected to the connecting member on one long side of the pair of long sides, and the other long side is separated from the connecting member in opposite directions. The standing hardware adjusting tool according to claim 1 or 2 , wherein the cross section orthogonal to the length direction forms a substantially Z shape. The first member and the second member are connected to the connecting member on one of the long sides of the pair of long sides in a state where the plate surfaces face each other, and are orthogonal to each other in the length direction. The standing hardware adjusting tool according to claim 1 or 2 , wherein the cross section has a substantially U-shape. In the second member, the other long side of the pair of long sides is positioned closer to the connecting member than the other long side of the pair of long sides in the first member. The standing hardware adjusting tool according to claim 4 . The first member having a rectangular plate shape surrounded by a pair of short sides and a pair of long sides has a rectangular plate shape surrounded by a pair of short sides and a pair of long sides, and the plate surface is described above. A second member provided substantially parallel to the plane including the plate surface of the first member, a plane including the plate surface formed by the first member, and a plane including the plate surface formed by the second member. A connecting member for connecting the first member and the second member, and the first member provided on the first member with a predetermined space between the first member and the first member in the plate thickness direction. A through hole through which the side wall fixing bolt for fixing the first member to the side wall of the manhole is penetrated, and a through hole provided in the second member to penetrate the second member in the plate thickness direction. A long hole through which a bolt for fixing the standing metal for fixing the standing metal is penetrated, and the dimension in the long side direction is longer than the dimension in the short side direction with the long side direction as the longitudinal direction. The standing metal adjuster provided with the above is fixed to the side wall by using the side wall fixing bolt .
A plurality of standing metal fittings are temporarily fixed to the elongated holes provided along the long side direction of the second member of the standing metal fitting adjusting tool by using the standing metal fitting fixing bolts .
Depending on at least one of the intermediate junction box used for connecting the cable and the connection position of the cable to the intermediate junction box, the standing metal fixing bolt is moved in the elongated hole to move the standing metal fitting to the standing metal adjusting tool. Adjust the position in the left-right direction,
At the adjusted position, the position of the standing metal in the left-right direction with respect to the standing metal adjusting tool is fixed.
How to install the intermediate junction box, which is characterized by this.

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