Panel mounting materials and panel mounting methods

Abstract

To provide a panel mounting member and a panel mounting method capable of easily identifying a placing position of an anchor bolt by expanding a reinforcement survey device, and changing the placing position of the anchor bolt without changing the mounting position of a panel.SOLUTION: A panel mounting member for mounting a panel having a panel fixing hole part on a support body includes a plate-like plate part, a screw part erected on the plate part, and an anchor hole part formed in the plate part.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a panel mounting member for mounting a panel to a support, and a panel mounting method. [Background technology]

[0002] On railway lines and roads, concrete retaining walls and concrete soundproof walls are sometimes attached to the outside of the tracks or running paths to reduce noise in the railway environment. Furthermore, on railway lines where trains such as the Shinkansen run at high speeds, the soundproofing effect of existing soundproof walls alone is insufficient, so a technique of attaching sound-absorbing materials made of glass wool, polyester fiber, etc. to the surface of the soundproof walls is known.

[0003] Patent Document 1 describes a sound-absorbing panel mounting tool for mounting a sound-absorbing panel having a sound-absorbing material formed from a polyester-based short fiber molded body to a support such as a soundproof wall, and a sound-absorbing panel mounting structure using the sound-absorbing panel mounting tool. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 4782655 Summary of the Invention [Problem to be solved by the invention]

[0005] When the support that serves as the mounting surface for the sound-absorbing panel is made up of multiple concrete walls lined up along the longitudinal direction of the track, the concrete walls may expand and contract due to temperature changes, etc., and the spacing between adjacent concrete walls may change. The sound-absorbing panel mounting tool and sound-absorbing panel mounting structure shown in Patent Document 1 can mount sound-absorbing panels across the joints between adjacent concrete walls, even in cases where the spacing between adjacent concrete walls changes in this way.

[0006] Typically, multiple reinforcing bars extending vertically and horizontally are arranged inside a support such as a concrete soundproof wall to reinforce the support, as shown in Figures 7(a) and 7(b). Furthermore, sound-absorbing panels are generally secured to the support by driving anchor bolts into the support. If the positions where the reinforcing bars are arranged overlap with the positions where the anchor bolts are attached, the reinforcing bars and the anchor bolts may interfere with each other, potentially cutting the reinforcing bars or damaging the anchor bolts. Therefore, it is not possible to drive the anchor bolts.

[0007] Here, a conventional method for installing a sound-absorbing panel will be described. First, as shown in FIG. 8(a), the sound-absorbing panel is placed in a predetermined position on the mounting surface of the support. Next, the area of ​​the support corresponding to the panel fixing holes provided at the four corners of the sound-absorbing panel (hereinafter referred to as the rebar detection area) is inspected for the presence of rebar. If it is confirmed that no rebar is present within all four rebar detection areas, anchor bolts are inserted into the panel fixing holes and driven into the support so that they are perpendicular to the side of the support, as shown in FIG. 7(b). If rebar is present within even one of the four rebar detection areas, the sound-absorbing panel is moved, as shown in FIG. 8(b), and rebar detection is performed again in all four rebar detection areas after the move. The sound-absorbing panel is moved and the rebar detection is repeated until a sound-absorbing panel installation position is found where no rebar is present within all four rebar detection areas. After the installation position of the new sound-absorbing panel has been determined in this way, the anchor bolt is inserted through the panel fixing hole and driven into the support so that it is perpendicular to the side of the support. After that, a washer is inserted through the anchor bolt protruding from the panel fixing hole, and a nut is screwed in to secure the sound-absorbing panel to the support.

[0008] Thus, with the conventional method of installing sound-absorbing panels, it was necessary to repeatedly move the sound-absorbing panel and inspect the rebars inside all four rebar inspection ranges until the installation position of the sound-absorbing panel was determined so that the anchor bolts would not interfere with the rebars inside the support, which was time-consuming and labor-intensive.In addition, the installation position of the sound-absorbing panel had to be moved to avoid interference between the anchor bolts and the rebars inside the support, which created the problem of having to install the sound-absorbing panel in a position different from the originally planned installation position.

[0009] Therefore, the present invention has been made in consideration of the above matters, and has an object to provide a sound-absorbing panel mounting member and a sound-absorbing panel mounting method that expand the rebar detection range to make it easier to identify the anchor bolt installation position, and that allows the anchor bolt installation position to be changed without changing the installation position of the sound-absorbing panel. [Means for solving the problem]

[0010] The present invention has been made to achieve the above object and has the following features.

[0011] The panel mounting member according to the present invention is a panel mounting member for mounting a panel having a panel fixing hole portion to a support body in which a plurality of reinforcing bars are disposed, and includes a panel mounting plate having a plate-shaped plate portion, a screw portion provided upright on the plate portion, and an anchor hole portion formed in the plate portion, and the panel mounting plate is configured to detect the reinforcing bars. Identifying the rangeRebar detection range identification a fixed state in which the panel is fixed, and the screw portion and the anchor hole portion are arranged spaced apart from each other, and the screw portion is inserted into the panel fixing hole, and the Rebar detection range identification In this state, the panel mounting plate is freely rotatable around the screw portion, and the anchor hole portion overlaps with the inspection range of the reinforcing bar, and in the fixed state, the anchor hole portion allows an anchor bolt driven into the support body to be inserted, avoiding the reinforcing bar.

[0012] The panel mounting member according to the present invention preferably comprises a panel fastening member that connects the panel and the screw portion, and a mounting plate fastening member that fixes the plate portion to the support body.

[0014] In the panel mounting member according to the present invention, it is preferable that the anchor hole portion is an elongated hole that intersects with the axial direction of the threaded portion and is elongated in a direction passing through the axial direction of the threaded portion.

[0015] In the panel mounting member according to the present invention, it is preferable that the plate portion is a circular plate.

[0016] In the panel mounting member according to the present invention, it is preferable that the threaded portion is formed at a position away from the center of the plate portion. In the panel mounting member according to the present invention, the panel fixing hole is formed as an elongated hole, Rebar detection range identification In this state, it is preferable that the screw portion is movable along the panel fixing hole. In the panel mounting member according to the present invention, it is preferable that the anchor hole portion is an elongated hole.

[0017] The panel mounting method according to the present invention is a method for mounting a panel having a panel fixing hole to a support body having a plurality of reinforcing bars disposed therein, the method including detecting the reinforcing bars using a reinforcing bar detection range expansion jig. Identify the range and a process of driving anchor bolts within an anchor bolt driving range that avoids the reinforcing bars, wherein the reinforcing bar detection range expansion jig has a plate-shaped plate portion, a screw portion erected on the plate portion, and an anchor hole portion formed in the plate portion, the screw portion and the anchor hole portion are arranged at a distance from each other, the screw portion is inserted into the panel fixing hole portion, the reinforcing bar detection range expansion jig is rotatable around the screw portion, and the anchor hole portion overlaps with the detection range of the reinforcing bars.

[0018] In the panel mounting method according to the present invention, ,beforeIt is preferable that the plate portion is a circular plate, the screw portion is formed at a position away from the center of the plate portion, and the anchor hole portion is an elongated hole that intersects the axial direction of the screw portion and is long in a direction passing through the axial direction of the screw portion. In the panel mounting method according to the present invention, it is preferable that the panel fixing hole is formed as an elongated hole, and the screw portion is movable along the panel fixing hole. In the panel mounting method according to the present invention, it is preferable that the anchor hole portion is an elongated hole.

[0019] The above summary of the invention does not list all of the features necessary for the present invention, and subcombinations of these features may also constitute inventions. [Effects of the Invention]

[0020] According to the present invention, the range of detection of reinforcing bars inside the support body is expanded, making it easier to identify the anchor bolt installation positions and reducing the effort and time required to install the anchor bolts. Furthermore, according to the present invention, even if the anchor bolt installation positions are changed from the originally planned positions, the installation positions of the sound-absorbing panels can be maintained at the originally planned positions. [Brief explanation of the drawings]

[0021] [Figure 1] FIG. 1 is a front view showing one embodiment of a sound-absorbing panel attached to a support using a sound-absorbing panel attachment member according to the present embodiment. [Figure 2] XX exploded cross section of Figure 1 [Figure 3] FIG. 1 is a perspective view showing a sound-absorbing panel mounting plate according to the embodiment; [Figure 4] 1 is a reference diagram showing a procedure for attaching a sound-absorbing panel using the sound-absorbing panel attachment member according to the present embodiment, illustrating the state in which the sound-absorbing panel is attached to a predetermined position. [Figure 5] 5A and 5B show a procedure for attaching a sound-absorbing panel using a sound-absorbing panel mounting member according to this embodiment, in which FIG. 5A is a reference diagram showing how a reinforcing bar detection range is specified using a reinforcing bar detection range expansion jig, and FIG. 5B is a reference diagram showing the expanded reinforcing bar detection range. [Figure 6]FIG. 10 is a reference diagram showing the state in which anchor bolts are driven into the expanded rebar detection range and the sound-absorbing panel is attached to the support body using the sound-absorbing panel attachment member according to this embodiment. [Figure 7] FIG. 7(a) is an enlarged front view of a part of the sound-absorbing panel, and FIG. 7(b) is a YY cross-sectional view of FIG. 7(a). [Figure 8] 8(a) shows a conventional method for installing sound-absorbing panels. FIG. 8(a) is a front view showing a state in which a reinforcing bar is placed within the reinforcing bar detection range. FIG. 8(b) is a front view showing a state in which the sound-absorbing panel has been moved to avoid the reinforcing bar. DETAILED DESCRIPTION OF THE INVENTION

[0022] Preferred embodiments for carrying out the present invention will be described below with reference to the drawings. Note that the following embodiments do not limit the inventions according to the claims, and not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention.

[0023] Fig. 1 is a front view showing one form of a sound-absorbing panel attached to a support using a sound-absorbing panel mounting member according to this embodiment, Fig. 2 is an exploded cross-sectional view taken along line XX of Fig. 1, and Fig. 3 is a perspective view showing a sound-absorbing panel mounting plate according to this embodiment. In this specification, the track longitudinal direction and vertical direction are defined as the directions of the arrows shown in Fig. 1.

[0024] The sound-absorbing panel mounting member 3 (panel mounting member in the claims) of this embodiment is used when mounting a sound-absorbing panel 1 (panel in the claims) to a support 100, which is a soundproof wall made of concrete, as shown in Figures 1 and 2.

[0025] The support 100 is, for example, a concrete soundproof wall installed on an elevated bridge for a high-speed railway, and is erected on both sides of the track in the longitudinal direction of the track in the width direction. Inside the support 100, a plurality of reinforcing bars 101 extending vertically and a plurality of reinforcing bars 102 extending horizontally are arranged, which serve as tension reinforcement members for the support 100. In addition, anchor bolts 35a are driven into the support 100 by a method described below.

[0026] The sound-absorbing panel 1 has a panel portion 2 filled with sound-absorbing material, and a plurality of mounting brackets 10 for mounting the panel portion 2 to a support body 100 .

[0027] The panel portion 2 is, for example, formed into a flat box shape from aluminum, stainless steel, or the like, and is filled with sound-absorbing material such as glass wool or polyester fiber. For example, a plurality of holes are formed in a staggered pattern on the surface of the panel portion 2 facing the track. A plurality of bolts for fixing the mounting bracket 10 are attached to both ends of the upper and lower edges of the panel portion 2 in the longitudinal direction of the track, and the threaded portions of these plurality of bolts protrude vertically upward from the upper edge of the panel portion 2 and vertically downward from the lower edge.

[0028] The mounting brackets 10 are located at the four corners of the panel 2, and are attached to both ends of the upper and lower edges in the track longitudinal direction. As shown in FIG. 2 , the mounting bracket 10 is formed by bending a single steel plate into a generally L-shape. A wall-side mounting surface 11, which constitutes one side of the generally L-shape of the mounting bracket 10, is formed with a panel-fixing hole 11a. Furthermore, a panel-side mounting surface 12, which constitutes the other side of the generally L-shape of the mounting bracket 10, is formed with a plurality of through holes 12a, through which the threaded portions of multiple bolts protruding from the upper and lower edges of the panel 2 are inserted. The mounting bracket 10 is attached to the panel 2 by threading nuts via washers onto the threaded portions of multiple bolts inserted through the multiple through holes 12a. Note that in this embodiment, the mounting bracket 10 is described as being formed by bending a single steel plate into a generally L-shape. However, the method for forming the mounting bracket 10 is not limited to this, and the mounting bracket 10 may be formed by casting, die-casting, or the like.

[0029] The panel fixing hole 11a is an elongated hole that is long in the longitudinal direction of the track, and receives a threaded portion 32 of a sound absorbing panel mounting plate 30 (described later) or an anchor bolt 35a (described later).

[0030] As shown in FIG. 2, the sound-absorbing panel mounting member 3 includes a sound-absorbing panel mounting plate 30, a sound-absorbing panel fastening member 34 (a panel fastening member in the claims), and a mounting plate fastening member 35.

[0031] As shown in FIGS. 2 and 3, the sound-absorbing panel mounting plate 30 includes a disk-shaped plate portion 31, a screw portion 32 provided upright on the plate portion 31, and an anchor hole portion 33 formed in the plate portion 31.

[0032] The plate portion 31 is made of a disk-shaped steel plate. The diameter D of the plate portion 31 is set appropriately depending on the position where the screw portion 32 is erected on the plate portion 31 and the size of the anchor hole portion 33. In this embodiment, the plate thickness t of the plate portion 31 is preferably formed to be, for example, 3.2 to 12 mm.

[0033] The threaded portion 32 is formed at a position away from the center of the plate portion 31. The threaded portion 32 is erected so as to be perpendicular to the surface of the plate portion 31, and is attached to the plate portion 31 by, for example, welding. The threaded portion 32 has an outer diameter large enough to support the sound-absorbing panel 1. In this embodiment, the threaded portion 32 is preferably a male screw with a nominal diameter of, for example, M12.

[0034] An anchor bolt 35a, which will be described later, is inserted through the anchor hole 33. The anchor hole 33 is formed as an elongated hole that intersects with the axial direction of the threaded portion 32 and is long in a direction passing through the axial center of the threaded portion 32. It is preferable that the center line extending in the longitudinal direction of the anchor hole 33 overlaps with a line connecting the center of the plate portion 31 and the axial center of the threaded portion 32. It is also preferable that both ends of the anchor hole 33 in the longitudinal direction are positioned closer to the center of the plate portion 31 than the threaded portion 32. In this embodiment, it is preferable that the anchor hole 33 is formed as an elongated hole such that the distance between the axial center of the threaded portion 32 and the axial center of the anchor bolt 35a is changeable between 47.5 and 72.5 mm, for example.

[0035] As shown in FIG. 2, the sound-absorbing panel fastening member 34 includes a nut 34a that can be screwed onto the threaded portion 32, and a washer 34b for the nut 34a.

[0036] 2, the mounting bracket 10 and the sound-absorbing panel mounting plate 30 are connected by inserting a washer 34b into the threaded portion 32 protruding from the panel fixing hole 11a and screwing in a nut 34a. By using two nuts 34a in a stack, an axial force acts between the two nuts 34a, preventing loosening due to vibrations or the like.

[0037] The fastening member 35 for the mounting plate includes an anchor bolt 35a having a male thread, a nut 35b that can be threaded onto the anchor bolt 35a, and a washer 35c for the nut 35b.

[0038] 2, the anchor bolt 35a is inserted into the anchor hole 33 and driven perpendicularly to the side surface of the support body 100 using a method for driving the anchor bolt 35a described below. The anchor bolt 35a has an outer diameter large enough to support the sound-absorbing panel 1. In this embodiment, the anchor bolt 35a preferably has a male thread with a nominal diameter of M12, for example.

[0039] 2, the sound-absorbing panel mounting plate 30 is fixed to the support body 100 by inserting a washer 35c into the anchor bolt 35a protruding from the anchor hole 33 and screwing in a nut 35b. By using two nuts 35b stacked together, an axial force acts between the two nuts 35b, making it possible to prevent loosening of the screw due to vibration or the like.

[0040] Next, a method for mounting the sound absorbing panel 1 using such a sound absorbing panel mounting member 3 will be described.

[0041] Figure 4 shows the procedure for attaching a sound-absorbing panel using the sound-absorbing panel mounting member of this embodiment, and is a reference diagram showing the sound-absorbing panel in place; Figure 5 shows the procedure for attaching a sound-absorbing panel using the sound-absorbing panel mounting member of this embodiment; Figure 5(a) is a reference diagram showing how the rebar detection range is identified using a rebar detection range expansion jig; Figure 5(b) is a reference diagram showing the expanded rebar detection range; and Figure 6 is a reference diagram showing the state after anchor bolts have been driven into the expanded rebar detection range and the sound-absorbing panel has been attached to the support using the sound-absorbing panel mounting member of this embodiment.

[0042] First, as shown in Fig. 4, the sound-absorbing panel 1 is placed in a predetermined position on the support body 100, and the area of ​​the support body 100 that corresponds to the panel fixing holes 11a of the mounting brackets 10 provided at the four corners of the sound-absorbing panel 1 (hereinafter referred to as reinforcing bar detection area A) is identified. Next, a search is performed to determine whether reinforcing bars 101, 102 are present inside the reinforcing bar detection area A. The search for reinforcing bars 101, 102 is performed non-destructively using known means such as electromagnetic wave radar or electromagnetic induction.

[0043] If the reinforcing bars 101, 102 are not arranged inside the reinforcing bar detection range A, the anchor bolt 35a can be driven into the range of the support body 100 corresponding to the panel fixing hole 11a. In this specification, the range in which it is confirmed that the reinforcing bars 101, 102 are not arranged as a result of reinforcing bar detection in the reinforcing bar detection range A is referred to as the anchor bolt driving range B.

[0044] If the rebar detection range A can be identified as the anchor bolt installation range B, the anchor bolt 35a is inserted into the panel fixing hole 11a and installed in the support 100 so that it is perpendicular to the side surface of the support 100. The procedure up to this step is the same as the conventional method for installing sound-absorbing panels.

[0045] In the area of ​​the reinforcing bar detection range A where the reinforcing bars 101, 102 are arranged inside the support body 100, as shown in Figure 5(a), the screw portion 32 of the sound-absorbing panel mounting plate 30 is inserted into the panel fixing hole portion 11a, and the sound-absorbing panel mounting plate 30 is attached to the mounting bracket 10. At this time, the screw portion 32 is free to rotate and move within the panel fixing hole portion 11a.

[0046] The entire range of the support body 100 corresponding to the anchor holes 33 of the sound-absorbing panel mounting plate 30 thus mounted (hereinafter referred to as the expanded rebar detection range A') is identified. Next, an inspection is performed to determine whether rebars 101, 102 are present within the expanded rebar detection range A'. In this process, the sound-absorbing panel mounting plate 30 is used as a jig (rebar detection range expansion jig in the claims) that expands the detection range for the rebars 101, 102. In this specification, the range in which it is confirmed that no rebars 101, 102 are present as a result of the rebar detection in the expanded rebar detection range A' is referred to as the expanded anchor bolt driving range B'.

[0047] Next, as shown in Figure 6, the sound-absorbing panel mounting plate 30 is fixed to the mounting bracket 10 using sound-absorbing panel fastening members 34 so that the expanded anchor bolt driving range B' overlaps with the anchor hole portions 33. Note that the plate portion 31 of the sound-absorbing panel mounting plate 30 is formed in a circular plate shape that has no particular directionality, so the aesthetic appearance is not impaired regardless of the angle at which it is mounted.

[0048] Next, the anchor bolt 35a is inserted into the anchor hole 33 and driven into the support body 100 so that the anchor bolt 35a is perpendicular to the side surface of the support body 100. Thereafter, the washer 35c is inserted into the anchor bolt 35a protruding from the anchor hole 33, and the nut 35b is screwed and fastened, thereby fixing the sound-absorbing panel mounting plate 30 to the support body 100.

[0049] In anchor bolt installation range B, where anchor bolts 35a can be installed without attaching the sound-absorbing panel mounting plate 30, a spacer 40 having a thickness t equivalent to that of the plate portion 31 is placed between the wall-side mounting surface 11 of the mounting bracket 10 and the support body 100, as shown in Figure 1. Thereafter, washers 35c are inserted into the anchor bolts 35a protruding from the panel fixing holes 11a, and nuts 35b are screwed and fastened to fix the mounting bracket 10 to the support body 100.

[0050] Thus, according to the sound-absorbing panel installation method using the reinforcing bar detection range expansion jig of this embodiment, the range in which anchor bolts 35a can be installed can be expanded by expanding the range in which reinforcing bars can be detected. Therefore, even if reinforcing bars 101, 102 are disposed inside support body 100 corresponding to panel fixing hole 11a, unlike conventional sound-absorbing panel installation methods, there is no need to redo reinforcing bar detection for the inside of support body 100 corresponding to all four panel fixing hole 11a, thereby eliminating the effort required for reinforcing bar detection and significantly shortening construction time.

[0051] Furthermore, by using the sound-absorbing panel mounting member 3 of this embodiment to mount the sound-absorbing panel 1 to the support 100, even if reinforcing bars 101, 102 are present inside the support 100 corresponding to the panel fixing hole portion 11a, the sound-absorbing panel 1 can be mounted without moving it from its originally planned position, unlike conventional methods of mounting sound-absorbing panels.

[0052] In this specification, the panel attached to the support 100 has been described as an acoustic panel as an example, but the panel attached to the support 100 is not limited to this and may be a panel with other functions.

[0053] In the sound-absorbing panel mounting member 3 according to this embodiment, the plate portion 31 has been described as being circular and having a diameter D. However, the shape of the plate portion 31 is not limited thereto. It may be strip-shaped or rectangular, as long as the plate portion 31 is provided with the threaded portion 32 and the anchor hole 33. In the sound-absorbing panel mounting member 3 according to this embodiment, the plate portion 31 has been described as having a single anchor hole 33. However, the number of anchor holes 33 is not limited thereto. Multiple anchor holes 33 may be formed. In the sound-absorbing panel mounting member 3 according to this embodiment, the anchor hole 33 has been described as being elongated in a direction that intersects the axial direction of the threaded portion 32 and passes through the axial direction of the threaded portion 32. However, the shape of the elongated hole is not limited thereto. The center line of the elongated hole may be curved, or even circular. In the above description, multiple holes are formed in a staggered pattern on the track-side surface of the panel portion 2. However, the shape of the track-side surface of the panel portion 2 does not have to be limited thereto. Holes may not be formed. Furthermore, in the method for attaching a sound-absorbing panel according to this embodiment, the case where the sound-absorbing panel mounting plate 30 is used as a reinforcing bar detection range expansion jig has been described, but the reinforcing bar detection range expansion jig may have any shape as long as it has the same function as the sound-absorbing panel mounting plate 30 in order to expand the detection range of the reinforcing bars 101, 102. It is clear from the claims that such modified or improved forms are also included within the technical scope of the present invention. [Explanation of symbols]

[0054] 1. Sound-absorbing panels 2 Panel section 10 Mounting bracket 11 Wall mounting surface 11a Panel fixing hole 12 Panel side mounting surface 12a Through hole 3. Sound-absorbing panel mounting material 30 Sound-absorbing panel mounting plate 31 Plate section 32 Threaded section 33 Anchor hole 34 Fastening members for sound-absorbing panels 34a, 35b nuts 34b, 35c Washers 35 Fastening member for mounting plate 35a anchor bolt 40 spacer 100 support 101, 102 Reinforced concrete A Rebar detection range A' Extended rebar detection range B. Anchor bolt installation range B' Expanded anchor bolt installation range

Claims

1. A panel mounting member for mounting a panel having a panel fixing hole to a support body having a plurality of reinforcing bars disposed therein, a panel mounting plate having a plate-like plate portion, a screw portion erected on the plate portion, and an anchor hole portion formed in the plate portion; The panel mounting plate is capable of selecting a reinforcing bar detection range specifying state in which the reinforcing bar detection range is specified, and a fixing state in which the panel is fixed, the threaded portion and the anchor hole portion are spaced apart from each other; The panel fixing hole has the screw portion inserted therethrough, In the reinforcing bar detection range specified state, the panel mounting plate is rotatable around the screw portion, and the anchor hole portion overlaps with the reinforcing bar detection range, A panel mounting member characterized in that, in the fixed state, an anchor bolt driven into the support body is inserted through the anchor hole portion while avoiding the reinforcing bar.

2. The panel mounting member according to claim 1, a panel fastening member that connects the panel and the threaded portion; a fastening member for a mounting plate that fixes the plate portion to the support body; A panel mounting member comprising:

3. The panel mounting member according to claim 1 or 2, The panel mounting member is characterized in that the anchor hole portion is an elongated hole that intersects with the axial direction of the threaded portion and is elongated in a direction passing through the axial direction of the threaded portion.

4. The panel mounting member according to any one of claims 1 to 3, The panel mounting member is characterized in that the plate portion is a circular plate.

5. The panel mounting member according to claim 4, A panel mounting member according to claim 1, wherein the screw portion is formed at a position away from the center of the plate portion.

6. The panel mounting member according to claim 1, The panel mounting member is characterized in that the panel fixing hole portion is formed as a long hole, and in the reinforcing bar detection range specified state, the screw portion is freely movable along the panel fixing hole portion.

7. The panel mounting member according to claim 1, The panel mounting member is characterized in that the anchor hole portion is an elongated hole.

8. A panel mounting method for mounting a panel having a panel fixing hole to a support body having a plurality of reinforcing bars disposed therein, comprising: A step of specifying a range in which to search for the reinforcing bar using a reinforcing bar search range expansion jig; and driving an anchor bolt within a driving range that avoids the reinforcing bars, The reinforcing bar detection range expansion jig has a plate-shaped plate portion, a screw portion erected on the plate portion, and an anchor hole portion formed in the plate portion, the threaded portion and the anchor hole portion are spaced apart from each other; The panel fixing hole has the screw portion inserted therethrough, The reinforcing bar detection range expansion jig is rotatable around the threaded portion, A panel mounting method characterized in that the anchor hole portion overlaps with the inspection range of the reinforcing bar.

9. 9. The panel mounting method according to claim 8, The plate portion is a circular plate, the threaded portion is formed at a position away from the center of the plate portion, A panel mounting method according to claim 1, wherein the anchor hole is an elongated hole that intersects with the axial direction of the threaded portion and is elongated in a direction passing through the axial direction of the threaded portion.

10. 9. The panel mounting method according to claim 8, The panel mounting method is characterized in that the panel fixing hole is formed as an elongated hole, and the screw portion is movable along the panel fixing hole.

11. 9. The panel mounting method according to claim 8, A panel mounting method characterized in that the anchor hole portion is an elongated hole.

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