JPH09112191A - Mounting construction for interior finish board in tunnel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the construction work easier, assure stable mounting, and mount without projecting out too far from the wall surface at tunnel side. SOLUTION: Hanging hooks 3 are attached to the rear surface of an interior finish board 2 of a tunnel, and a backing member 5 is attached in a horizontal direction to a side wall surface of the tunnel in response to the hanging hooks 3. The hanging hooks 3 are suspended from the backing member 5, a T-shaped fixing member 7 consisting of an arm piece 71 and a leg piece 72 is used for holding the hook 3 downward, and the leg piece 72 is engagedu to the backing member 5 and attached and fixed to an engaging member 8 with screws. By doing this, the interior finish board 2 of the tunnel can be supported by the backing member 5 only by suspending the hanging hook 3 to the backing member, so that the work can be made easier and also the deviation of the interior finish board 2 in an upward direction can be prevented by the fixing member 7 even though an external force lifting the finish board upward has acted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tunnel interior plate mounting structure which is mounted on a side wall surface of a tunnel such as a road.

[0002]

2. Description of the Related Art Conventionally, as a mounting structure for a tunnel interior plate, for example, in Japanese Utility Model Laid-Open No. 4-53893, a reinforcing frame is fixed around the tunnel interior plate, and a hook is attached to the reinforcing frame, and the hook is attached to the tunnel. There is described a mounting structure which is adapted to be hooked on the base material mounted on the side wall surface of the. Also, in Japanese Utility Model Laid-Open No. 4-53894,
Hook the tunnel interior plate to the base material with the hook attached to the reinforcing frame in the same manner as above, and further provide a vertical elongated hole at the lower end of the reinforcing frame, and insert the blade part of the butterfly metal fitting having the plate-shaped blade part in this elongated hole. There is disclosed a mounting structure in which the screw of the butterfly metal fitting is fitted and tightened and fixed to an engaging member engaged with a base material. Furthermore, actual Kaihei 6-41
In Japanese Patent Publication No. 97, a tunnel interior plate is hooked on a base material with a hook attached to a reinforcing frame in the same manner as described above, and a U-shaped interior plate attaching plate having an upper opening is attached to the lower left and right edges of the reinforcing frame. A mounting structure is described in which a blade portion of a butterfly metal fitting is inserted into the interior plate mounting plate, and the blade portion is fastened and fixed to a substantially U-shaped engaging member with a screw. Each of the above mounting structures basically supports the tunnel interior plate by a hook hooked on the base material.

[0003]

However, the above-mentioned mounting structure has the following problems. That is, the mounting structure described in Japanese Utility Model Laid-Open No. 4-53893 is
Since the tunnel interior plate can be attached simply by hooking the hook on the base material from above, there are work advantages such as easy construction, but since the hook is simply hooked on the base material, There is no concern that the tunnel interior plate will fall off against external force in the downward direction, but if external force that lifts the tunnel interior plate upward due to vibration or wind pressure when passing through the vehicle, the hook will disengage from the base material and the tunnel will disengage. There is a concern that the interior plate may fall, or even if the tunnel interior plate does not fall, it may not be stable and the tunnel interior plate may shift upward.

In the mounting structure described in Japanese Utility Model Laid-Open No. 4-53894, the lower end portion of the tunnel interior plate is fixed to the base material by the butterfly metal fitting and the engaging member. Although the tunnel interior plate is prevented from shifting upward even if an external force that lifts the blade upward is applied, as described by the applicant in JP-A-6-4197, Since the blade part is a simple plate and has low rigidity, it is not always firmly fixed,
Also, since the structure is such that the central screw is engaged at only one location, there is a risk that the blade portion may rotate after being fixed, which is unstable, and the work of inserting the blade portion into the elongated hole is troublesome. is there.

Further, in the mounting structure described in Japanese Utility Model Laid-Open No. 6-4197, the lower left and right edges of the tunnel interior plate are U-shaped.
Although the tunnel interior plate is prevented from shifting upward by fixing it to the base material with the letter-shaped interior plate mounting plate and the butterfly metal fitting, the interior plate is mounted between the base material and the tunnel interior plate. Since the plate is provided, considering the depth dimension of the interior plate mounting plate, the tunnel interior plate considerably projects from the tunnel side wall surface, and the average projection size from the tunnel side wall surface to the tunnel interior plate is 100 mm. It was virtually difficult to keep within.

In view of the above, the present invention provides a tunnel interior plate mounting structure that solves the above-mentioned problems, is easy to install, can be stably mounted, and can be mounted without protruding too much from the tunnel side wall surface. It is intended to be provided.

[0007]

In order to achieve the above object, the present invention has the following arrangement. That is, in the mounting structure for a tunnel interior plate according to the present invention, a hanging hook is attached to the back surface of the tunnel interior plate, and a base material is attached to the side wall of the tunnel in a horizontal direction corresponding to the hanging hook. Engagement member in which the hanging hook is hung on the lower part, and the hanging hook is pressed from above by the arm piece of the T-shaped fixing member including the arm piece and the leg piece to engage the leg piece with the base material. It is characterized in that it is fixed with screws and attached.

[0008]

Next, an embodiment of the present invention will be specifically described with reference to the drawings. That is, FIG. 1 is a front view showing an embodiment of the present invention, FIG. 2 is a sectional view of FIG. 1, FIG. 3 is an enlarged sectional view of an upper portion of FIG. 1, and FIG. 4 is an enlarged sectional view of a lower portion of FIG. 5 is an enlarged perspective view of the vicinity of the fixing member of FIG. 1, FIG. 6 is a perspective view showing the fixing member and the engaging member of FIG. 1,
FIG. 7 is a perspective view showing another embodiment of the tunnel interior plate portion, and FIG. 8 is a perspective view showing another embodiment of the vicinity of the fixing member.

First, in the embodiment shown in FIGS. 1 to 6, reference numeral 1 is a tunnel side wall surface, 2 is a tunnel interior plate attached to the tunnel side wall surface 1, and along the tunnel side wall surface 1. It is formed in a vertically long rectangular shape that bends up and down, and inverted U-shaped hanging hooks 3 are attached to the left and right ends of each of the upper, lower, and middle portions of the back surface. The tunnel interior plate 2 is, for example, a metal plate such as a stainless steel plate whose surface is coated with an inorganic material, but is not necessarily limited thereto.
Further, the tunnel interior plate 2 may be provided with appropriate rigidity by folding both side edges thereof to the back side along the length direction, and as shown in FIG. 7, a vertical frame 41 and a horizontal frame 42 are provided around the periphery. The reinforcing frame 4 made of may be attached. Further, the hanging hook 3 may be directly attached to the back surface of the tunnel interior plate 2, and when the reinforcing frame 4 is attached,
Along the vertical frame 41, the support piece 4 is formed in the direction of the side wall 1 of the tunnel.
The hanging hook 3 may be attached to the supporting piece 43 of the protruding piece 3.

Reference numeral 5 is a base material, and the base material 5 is a horizontal portion 51.
And a vertical portion 52, which has a long L-shape, and which corresponds to the hanging hooks 3 attached to the upper, lower, and middle portions of the back surface of the tunnel interior plate 2 respectively, It is attached to the side wall surface 1 in parallel in the vertical direction. The base material 5 may be attached directly with a gap between it and the tunnel side wall surface 1, but in the present embodiment, first, the upper and lower portions of the tunnel side wall surface 1 substantially corresponding to the hanging hooks 3 are first attached. And two intermediate nuts 12 are screwed into the anchor bolts 11, and the short L-shaped mounting member 6 is mounted.
The base material 5 is attached to the tunnel side wall 1 with the vertical portion 52 facing upward and the horizontal portion 51 facing the tunnel side wall surface 1. Then, by hanging the hanging hooks 3 on the vertical portions 52 of the base material 5, respectively,
The tunnel interior plate 2 is suspended and supported by the base material 5. The mounting position of the mounting member 6 may be mounted in the vicinity of the hanging hook 3 as shown in FIG. 1 or may be mounted at the connecting portion of the base material 5, and is not particularly limited.

Numeral 7 is a fixing member, which is mainly used to prevent the tunnel interior plate 2 from being displaced upward even if an external force for lifting the tunnel interior plate 2 is applied. The arm piece 71, which has a T-shape obtained by punching out a plate-shaped body such as a metal plate like 5 to 6, holds the upper end of the hanging hook 3 hooked on the base material 5 from above as described above. The leg piece 72 hangs downward from the center of the arm piece 71, and the leg piece 72 is fixed to the engaging member 8 engaged with the base material 5 with the screw 9 and attached. There is. Fixing member 7 to T
The reason for forming the character is that by disposing the fixing members 7 at the respective joint portions of the tunnel interior plates 2 that are successively attached, the hanging hooks 3 of the adjacent tunnel interior plates 2 are The arm piece 71 on the left side of the fixing member 7 attaches the hanging hook 3 of one tunnel interior plate 2 to the arm piece 7 on the right side.
This is because 1 can press the respective hanging hooks 3 of the other tunnel interior plate 2.

The relationship between the fixing member 7 and the engaging member 8 will be described in more detail.
The engaging portion 8 has a through hole 73 formed therein, while the engaging member 8 has a screw hole 81 into which the screw 9 is inserted.
The two side parts 83, 83 of the second part are formed in a U shape bent in the direction of the leg part 72, and the both side parts 83, 83 are provided with concave grooves 84, 84 with which the horizontal part 51 of the base material 5 is engaged. It is cut out. The concave grooves 84, 84 of the engaging member 8 are formed in the base material 5
While engaging with the horizontal portion 51 of the, and pressing the upper end of the hanging hook 3 with the arm piece 71 of the fixing member 7 from above,
By screwing the screw 9 inserted through the through hole 73 of the leg piece 72 into the screw hole 81 of the attachment portion 82 and tightening the leg piece 72,
Is pressed toward the attachment portion 82 and fixed, and the fixing member 7 is attached to the engaging member 8.

The fixing member 7 may be provided on all of the hanging hooks 3, but as in the present embodiment, it is provided at least one on each of the left and right hanging hooks 3, respectively. For example, the tunnel interior plate 2 is prevented from shifting upward. That is, in this embodiment, as shown in FIG.
4 to 4, the fixing members 7 are provided only for the hanging hooks 3 attached to both left and right edges of the upper rear surface of the tunnel interior plate 2, and the hanging hooks 3 attached to the lower portion and the middle portion are attached. On the other hand, the fixing member 7 is not provided.

Further, as shown in FIG. 8, the fixing member 7 contacts the side surface of the hanging hook 3 from both end edges of the arm piece 71 of the fixing member 7 so as to prevent lateral displacement of the tunnel interior plate 2. The locking pieces 74 that can come into contact with each other may be hung, and in this way, the side surfaces of the hanging hook 3 are locked by the locking pieces 74, and the lateral displacement of the tunnel interior plate 2 can be prevented. preferable.

[0015]

According to the present invention, if the hanging hooks attached to the back surface of the tunnel interior plate are hung on the base material, the tunnel interior plate is supported by the base material, so that the construction is easy and fixed. Since the suspension hooks are pressed down from above by the member, the tunnel interior plate is prevented from shifting upward even if an external force that lifts the tunnel interior plate upwards is applied. It can be installed without protruding too much from the side wall surface.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a sectional view of FIG.

FIG. 3 is an enlarged cross-sectional view of the upper part of FIG.

FIG. 4 is an enlarged cross-sectional view of the lower portion of FIG.

5 is an enlarged perspective view of the vicinity of the fixing member in FIG.

FIG. 6 is a perspective view showing a fixing member and an engaging member of FIG.

FIG. 7 is a perspective view showing another embodiment of the tunnel interior plate portion according to the present invention.

FIG. 8 is a perspective view showing another embodiment of the vicinity of the fixing member in the present invention.

[Explanation of symbols]

 1 Tunnel Side Wall Surface 11 Anchor Bolt 12 Nut 2 Tunnel Interior Plate 3 Hanging Hook 4 Reinforcing Frame 41 Vertical Frame 42 Horizontal Frame 43 Supporting Piece 5 Base Material 51 Horizontal Section 52 Vertical Section 6 Mounting Member 7 Fixing Member 71 Arm Piece 72 Leg Piece 73 Through Hole 74 Locking Piece 8 Engaging Member 81 Screw Hole 82 Mounting Part 83 Side Part 84 Recessed Groove 9 Screw

Claims (2)

[Claims] 1. A suspension hook is attached to a back surface of a tunnel interior plate, a base material is horizontally attached to a side wall of a tunnel so as to correspond to the suspension hook, and the suspension hook is suspended on the base material. At the same time, the hanging hook is pressed down from above by the arm piece of the T-shaped fixing member including the arm piece and the leg piece, and the leg piece is fixed to the engaging member engaged with the base material with the screw and attached. A tunnel interior plate mounting structure featuring. 2. A locking piece that can abut against a side surface of the hanging hook is hung from both side edges of the arm piece of the fixing member so as to prevent lateral displacement of the tunnel interior plate. The structure for mounting a tunnel interior plate according to claim 1.