JPH064197U - Tunnel interior plate mounting structure and member mounting structure - Google Patents

Abstract

(57) [Summary] [Purpose] To firmly fix the tunnel interior plate to the base material. [Structure] The interior plate mounting plate 25 is fixed to the reinforcing frames on the left and right edges of the tunnel interior plate 1. A substantially U-shaped notch 25a is formed in the interior plate mounting plate 25. The butterfly fitting 30 includes an engaging member 32, a screw 33, and a blade portion 34. The blade portion 34 has leg portions 34c that come into contact with the furring strip 7 at both ends of a blade main body portion 34b having a hole through which the screw 33 is passed, and has flange portions 34d at the upper and lower edges. Wing 3 of butterfly bracket 30
4 is inserted into the notch 25a of the interior plate mounting plate 25, and the screw 33 that is screwed into the engaging member 32 is tightened.
4 presses and fixes the interior plate mounting plate 25 to the furring strip 7.
In this case, since there are three engagement points between the blade portion 34 and the furring strip 7, the central screw portion and the leg portions 34c at both ends, the engagement between the vane portion 34 and the furring strip 7 is stable and strong. Thus, the interior plate mounting plate 25 (and hence the tunnel interior plate 1) is firmly fixed to the furring strip 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tunnel interior plate attachment structure for attaching a tunnel interior plate to a side wall surface of a tunnel such as a road, and to a member attachment structure applicable as a means for attaching various other members.

[0002]

[Prior art]

 The tunnel interior plate described above is provided for the purpose of improving the visual environment inside the tunnel, such as improving the lighting effect due to reflection and improving the decorativeness. The method of attaching the tunnel interior plate to the tunnel side wall surface is generally such that the base material is fixed to the tunnel side wall surface so as to correspond to, for example, the upper end portion, the middle portion and the lower end portion of the tunnel interior plate, and the tunnel interior plate is attached to the base material. Secure the reinforcing frame of with bolts and nuts. However, since this method is poor in workability, the applicant first sought to improve it by, for example, hooking a hook-shaped hook fixed to the reinforcing frame on the base material at the upper and middle portions of the tunnel interior plate. For the lower end, we devised a mounting structure for fixing the reinforcing frame to the base material with butterfly fittings and filed a utility model registration application (see Japanese Utility Model Publication No. 4-53894). As shown in Fig. 8 and Fig. 9, the mounting part of this mounting structure using the butterfly metal fittings has vertical elongated holes 3b formed in the vertical reinforcing frame 3 fixed to the left and right edges of the panel 2 of the tunnel interior plate 1. An engaging member that inserts both ends of the blade portion 5 made of a flat plate of the butterfly metal fitting 4 into the elongated hole 3b, inserts a screw 6 into the blade portion 5, and engages the tip of the screw 6 with the furring strip 7, which is a base material. It is a structure in which the tunnel interior plate 1 is fixed to the furring strip 7 by being screwed onto and tightened with 8. Reference numeral 10 denotes a tunnel side wall surface. A hole-in anchor 11 is driven into the tunnel side wall surface 10, a mounting piece 13 is fixed to the hole-in anchor 11 with a nut 12, and the mounting piece 13 is fixed to the body. The rim 7 is horizontally fixed with bolts 14.

[0003]

[Problems to be solved by the device]

 The above-mentioned conventional mounting structure has much better workability than the conventional mounting method using bolts and nuts, but since the blade part 5 is a mere plate and its rigidity is a little small, when it is tightened with the screw 6, the tunnel interior The pressing force for pressing and fixing the plate 1 against the furring strip 7 is somewhat insufficient, and firm fixing is not always performed. Further, since the blade portion 5 is engaged with the furring strip 7 only at one point of the central screw 6, the blade portion 5 may rotate after being fixed by tightening, which makes it slightly unstable. The above-mentioned drawback is that the butterfly fitting is fixed by pressing the attached member (in this case, the vertical reinforcing frame 3) with the cantilevered blade, and if the bending rigidity of the blade is small, sufficient fixing force can be obtained. It is said that this is based on the characteristic peculiar to a general-purpose butterfly metal fitting. Further, the work of inserting the blade portion 5 into the elongated hole 3b of the vertical reinforcing frame 3 may be a little troublesome, and it is desirable to further simplify the work.

The present invention has been made to solve the above-mentioned conventional drawbacks. The tunnel interior plate can be firmly fixed to the base material, and the workability of mounting the tunnel interior plate can be further improved. It is an object of the present invention to provide a mounting structure for a tunnel interior plate, and a member mounting structure that can be applied to mounting other various members and can perform firm mounting.

[0005]

[Means for Solving the Problems]

 The present invention, which solves the above-mentioned problems, has a tunnel interior plate mounting structure in which a tunnel interior plate is attached to a base material fixed to the side wall surface of the tunnel, and the surface of the tunnel interior plate is attached to the reinforcing frames on the left and right edges of the tunnel interior plate. And an inner plate mounting plate having a substantially U-shaped cutout which is open vertically and fixed to the base material, and a butterfly metal member for fixing the inner material plate mounting plate to the base material. An engaging member that engages with the screw, a screw that is screwed into a screw hole formed in this engaging member, and a blade portion that has a hole through which this screw is inserted in the center. The blade body has holes, and the blade body is bent at right angles from the left and right ends of the blade body to make a vertical contact with the base material, and a gap is formed between the blade body and the blade body. A flap bent at a right angle from the upper or lower edge of the middle part of And the blade main body at the gap position of the blade is inserted into the notch of the interior plate mounting plate, and the blade main body of the blade contacts the edge of the notch of the interior plate mounting plate. It is characterized by tightening the screws until the legs come into contact with the base material.

According to a second aspect of the present invention, the height H of the leg portion of the blade portion of the butterfly fitting is set to be larger than the distance h from the substantially U-shaped notch of the interior plate mounting plate to the tip surface of the interior plate mounting plate. It is characterized by

According to a third aspect of the present invention, there is provided an engaging member which engages with a fixed member, a screw which is screwed into a screw hole formed in the engaging member, and a blade portion which has a hole through which the screw is inserted in the center. Is a member mounting structure that mounts a mounted member integrally having a plate-shaped mounting portion provided with a substantially U-shaped notch to the fixed member, and the blade portion of the butterfly member is The blade main body having holes for passing screws, the legs bent at right angles from both left and right ends of the blade main body and contacting the fixing member, and a gap is formed between the blade and the blade. A blade main body having a flange portion bent at a right angle from the upper edge or the lower edge of the middle portion of the main body portion, and inserting the blade main body portion at the gap position of the blade portion into the notch of the mounting plate, Part touches the notch edge of the mounting plate and the leg part touches the fixing member. It is characterized by tightening the end.

[0008]

[Action]

 In the above structure, when fixing the tunnel interior plate, the legs on both ends of the vane are in direct contact with the base material, and there are three points of engagement between the vane and the base material: the central screw part and the legs on both ends. Therefore, the blade part is fixed to the base material in a stable state in which it does not rotate. Since the blades that fix the inner plate mounting plate are stable, the inner plate mounting plate can also be stably attached to the base material.

Further, if the blade portion is strongly tightened until a reaction force is generated in the leg portion in contact with the base material, the reaction force of the leg portion against the force in the direction of peeling off the tunnel interior plate. The tunnel interior plate can be firmly fixed in this respect as well.

Since the blade part of the butterfly metal fitting is not a mere plate-shape but has a flange part bent in the middle part, the bending rigidity is high and the blade part can bear a large drag force when tightening the screw. Therefore, the blades can press the interior plate mounting plate with a sufficiently large force, the effect of the legs can be effectively obtained, and the tunnel interior plate can be firmly fixed to the base material. .

Since the gap between the leg portions at both ends of the butterfly metal fitting and the flange portion at the middle portion determines the position of the inner plate mounting plate and fulfills the positioning function of the tunnel inner plate, the positioning of the tunnel inner plate is accurate. Also, the workability of attaching the interior plate is improved.

Since the substantially U-shaped notch provided in the interior plate mounting plate has an open shape, it is easy to insert the blade portion into this notch.

[0013]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a cross-sectional view of a tunnel interior plate 1 according to an embodiment of the present invention mounted on a tunnel side wall surface 10, and FIG. 2 is a front view of the tunnel interior plate 1 similarly mounted on a tunnel side wall surface 10. The tunnel interior plate 1 has a structure in which a reinforcing frame 21 is fixed around a rectangular panel 2, and the reinforcing frame 21 reinforces the left and right side edges of the panel 2 and the vertical reinforcing frame 3 and the upper and lower sides of the panel 2. The horizontal reinforcing frame 22 reinforces the edge of the. Although illustration is omitted, the lateral reinforcing frame 22 is a simple U-shaped cross section that fits on the edge of the panel 2. As shown in FIG. 4, the vertical reinforcing frame 3 has a sectional shape in which a U-shaped portion is integrally formed with a flange portion 3a perpendicular to the panel 2. Then, hook-shaped hooks 23 are respectively fixed to the upper end portion and the intermediate portion of the vertical reinforcing frame 3 by screws (not shown) as shown in FIG. 1, and the lower end portion of the flange portion 3a of the vertical reinforcing frame 3 is fixed to the lower end portion. As shown in FIGS. 3 to 5, an inner plate mounting plate 25 having a substantially U-shaped notch 25a that is open on the upper side is fixed with a screw 26.

On the other hand, the tunnel side wall surface 10 has a predetermined height position corresponding to the upper and middle hooks 23 of the vertical reinforcing frame 3 and the lower end portion of the vertical reinforcing frame 3 as in the conventional case. The hole-in anchor 11 described above is driven at a height position corresponding to the interior plate mounting plate 25, and the mounting pieces 13 and 13 ′ made of angle steel are fixed to the hole-in anchor 11 with the nut 12, and the mounting piece 13 is mounted. , 13 'are secured by bolts 14 to the above-mentioned furring strips 7, 7'of angle steel that extend horizontally in the tunnel length direction. In addition, the mounting piece 13 'and the furring strip 7'corresponding to the upper end and the middle portion of the vertical reinforcing frame 3 and the mounting piece 13 and the furring strip 7 corresponding to the lower end are mounted in the opposite vertical directions. ing. The mounting piece 13 and the furring strip 7 form a base material. It should be noted that as the base material, it is possible to use one member in which the attachment piece 13 portion and the furring strip 7 portion are integrated.

3 to 7 show details of the mounting structure for mounting the lower end of the vertical reinforcing frame 3 to the furring strip 7, which is the lower base material. Reference numeral 30 is a butterfly fitting for fixing the interior plate mounting plate 25 fixed to the vertical reinforcing frame 3 of the tunnel interior plate 1 to the furring strip 7. This butterfly metal fitting 30 has grooves 32b on the left and right side portions 32a that fit into the horizontal portions 7b of the furring strip 7, and a screw hole 32d is formed in the central portion 32c. 32, a screw 33 that is screwed into the screw hole 32d of the engaging member 32, and a blade portion 34 in which a hole 34a for inserting the screw 32 is formed in a flat blade main body portion 34b in the center. The blade portion 34 is bent at right angles from the left and right ends of the blade main body portion 34b, and is vertically contacted with the furring strip 7, and the blade portion 34b is perpendicular to the upper and lower edges of the middle portion of the blade main body portion 34b. It has a bent flange portion 34d, and a gap 35 for inserting the interior plate mounting plate 25 is provided between each of the left and right leg portions 34c and the flange portion 34d.

The operation of attaching the tunnel interior plate 1 to the tunnel side wall surface 10 will be described. The hooks 23 attached to the upper end portion and the intermediate portion of the tunnel interior plate 1 are attached to the upper side and the middle side of the tunnel side wall surface 10 side, respectively. The tunnel inner plate 1 is hung by being hooked on the furring strip 7 ', and then the inner plate mounting plate 25 fixed to the lower end of the vertical reinforcing frame 3 is fixed to the lower furring strip 7 by the butterfly metal fitting 30. In this case, when the gap 35 of the blade portion 34 of the butterfly fitting 30 is inserted into the notch 25a of the interior plate mounting plate 25 from above, and then the screw 33 screwed to the engaging member 32 is tightened, The blade portions 34 press the interior plate mounting plate 25 against the furring strip 7 to fix it.

In this case, as shown in FIG. 6, the height H of the leg portion 34c of the blade portion 34 is changed from the notch 25a of the interior plate attachment plate 25 to the tip of the interior plate attachment plate 25 as shown in FIG. If it is set slightly larger than the distance h to the surface (for example, about 3 mm when h = 20 mm), the inner plate mounting plate 25 exerts no pressing force when the leg portion 34c is lightly applied to the furring strip 7. I do not receive it. Here, when the screw 33 is strongly tightened, as shown in FIG. 7, the blade body 34b is bent and the left and right legs 34c are slightly curved, so that the blade body 34b is attached to the interior plate mounting plate 25. The inner plate mounting plate 25 is firmly pressed against the furring strip 7 by hitting the edge of the notch 25a. Since the blade body portion 34b has a flange portion 34d instead of a flat plate, it has a high bending rigidity and can bear a large drag force when tightening the screw. Therefore, the vane portion 34 can press the interior plate mounting plate 25 with a sufficiently large force, and the tunnel interior plate 1 can be firmly fixed to the furring strip 7.

Further, since there are three engaging points between the blade portion 34 and the furring strip 7, that is, the central screw 33 portion and the leg portions 34c at both ends, the vane portion 34 itself does not rotate on the furring strip 7 and is stable. It will be fixed directly in this condition. Since the blade portion 34 for fixing the inner plate mounting plate 25 is stable, the inner plate mounting plate 25 can also be stably mounted to the furring strip 7. Also, since the reaction force is generated in the leg portion 34c that contacts the furring strip 7, the blade portion 34 is not affected by the reaction force of the leg portion 34c with respect to the force in the direction of peeling off the tunnel interior plate 1. The tunnel interior plate 1 is firmly fixed in this respect as well, because it can resist with even greater force.

Regarding the positioning of the tunnel interior plate 1 in the width direction, the interior plate attachment plate 25 fixed to the vertical reinforcing frame 3 is provided between the leg portion 34c of the blade portion 34 of the butterfly fitting 30 and the flange portion 34d. When the tunnel interior plate 1 is inserted into the gap 35, the tunnel interior plate 1 is automatically positioned (that is, the gap between the adjacent tunnel interior plates 1 is automatically determined), so that the tunnel interior plate 1 can be positioned accurately and easily. As a result, the workability of mounting the interior plate is improved.

Further, since the substantially U-shaped notch 25a provided in the interior plate mounting plate 25 has an open shape, it is easy to insert the blade portion 34 into the notch 25a, and the conventional vertical reinforcing frame is used. The workability is improved as compared with the structure in which the blade portion is inserted into the elongated hole provided in.

The height H of the leg portion 34c of the blade portion 34 may be at least a length such that the leg portion 34c contacts the furring strip 7 in the tightened and fixed state. Therefore, H is approximately equal to h or H> h. Even if H is substantially equal to h but slightly smaller than h, and even if there is a gap between the tip of the leg portion 34c and the furring strip 7 before tightening, the screw 33 is strongly tightened and the interior plate mounting plate 25 side is compressed. It is also conceivable that the leg portion 34c is deformed to come into contact with the furring strip 7.

Further, in the embodiment, the interior plate mounting plate 25 is provided separately from the vertical reinforcing frame 3 and is fixed with the screw 26. However, if the vertical reinforcing frame 3 has high rigidity, the vertical reinforcing frame 3 itself has a notch. It is also possible to form the cutout and make the cutout function as an interior plate mounting plate.

Further, although the above-mentioned embodiment is applied to the tunnel interior plate, the present invention is not limited to this, and a panel-shaped member or other kind is used by using a butterfly fitting provided with an engaging member, a blade portion and a screw. It can be applied when each member is attached and fixed to a fixing member such as a base material.

[0024]

[Effect of device]

 According to the present invention, the blade portion and the base material are engaged at three places, the screw portion and the leg portions at both ends, so that the blade portion and the base material are engaged with each other stably and strongly, and the blade The tunnel interior plate bound by the section is firmly fixed to the base material.

Further, when the blade portion is tightened with the screw until a reaction force is generated in the leg portion that comes into contact with the base material, when the blade portion is forced to peel off the tunnel interior plate, Even the reaction force can be resisted by a larger force, and in this respect as well, the tunnel interior plate is firmly fixed.

Since the blade part of the butterfly metal fitting is not a mere plate shape but has a flange part bent in the middle part, the bending rigidity is high and the inner plate mounting plate can be pressed with a large force, and the action of the leg part Can be effectively obtained, and the tunnel interior plate can be firmly fixed to the base material.

Since the gap between the leg portions at both ends of the butterfly metal fitting and the flange portion at the intermediate portion fulfills the positioning function of the tunnel interior plate, the positioning operation of the tunnel interior plate becomes accurate and easy. The workability of attaching the inner plate is improved.

Since the substantially U-shaped notch of the interior plate mounting plate has an open shape, it is easy to insert the blade portion into this notch, and the workability is improved as compared with the conventional long hole.

Each of the above effects can be similarly obtained when the member to be attached is not the tunnel interior plate but another member.

[Brief description of drawings]

FIG. 1 is a sectional view of a tunnel interior plate attached to a side wall of a tunnel, showing a mounting structure of a tunnel interior plate according to an embodiment of the present invention.

FIG. 2 is a front view of a tunnel interior plate attached to a tunnel side wall surface.

FIG. 3 is a perspective view showing a mounting structure of a tunnel interior plate of the present invention.

FIG. 4 is a plan view showing a mounting structure for a tunnel interior plate of the present invention.

5 is a cross-sectional view taken along the line AA in FIG.

FIG. 6 is an explanatory view of a preferable embodiment of the butterfly metal fitting in FIGS. 4 and 5, and is a view of a state before tightening and fixing.

FIG. 7 is an explanatory view of a preferred embodiment of the butterfly fitting in FIGS. 4 and 5, and is a view in a state where it is fastened and fixed.

FIG. 8 is a plan view showing a conventional mounting structure for a tunnel interior plate.

9 is a sectional view taken along line BB in FIG.

[Explanation of symbols]

 1 Tunnel Interior Plate 2 Panel 3 Vertical Reinforcement Frame (Reinforcement Frame) 3a Flange Part 7 Furring Edge (Base Material) 10 Tunnel Side Wall 25 Interior Plate Mounting Plate 25a Notch 30 Butterfly Metal Fitting 32 Engagement Member 32d Screw Hole 33 Screw 34 Blade Part 34a Hole 34b Blade main body part 34c Leg part 34d Flange part

Claims (3)

[Scope of utility model registration request] 1. A tunnel interior plate mounting structure for mounting a tunnel interior plate to a base material fixed to a side wall surface of the tunnel, wherein the tunnel interior plate is fixed to reinforcing frames at right and left edges of the tunnel interior plate perpendicularly to the surface of the tunnel interior plate. And an inner plate mounting plate having a substantially U-shaped cutout that is open on the upper side, and a butterfly metal member for fixing the inner plate mounting plate to the base material, the butterfly metal member engaging with the base material. A blade main body having a mating member, a screw screwed into a screw hole formed in the engaging member, and a blade portion having a hole through which the screw is inserted in the center, the blade portion having a hole through which the screw is inserted. Department,
The upper edge or the lower part of the middle part of the blade main body is formed so that a gap is formed between the leg that is bent at right angles from the left and right ends of the blade main body and is in vertical contact with the base material, and the leg. And a flange portion that is bent at a right angle from the edge, and insert the blade main body portion at the gap position of the blade portion into the notch of the interior plate mounting plate, and the blade body portion of the blade portion cuts the interior plate mounting plate. A mounting structure for a tunnel interior plate, characterized in that a screw is tightened until it contacts the edge of the notch and the legs contact the base material. 2. The height H of the leg portion of the blade portion of the butterfly fitting is
2. The tunnel interior plate mounting structure according to claim 1, wherein a distance h from a substantially U-shaped notch of the interior plate mounting plate to a tip surface of the interior plate mounting plate is larger than a distance h. 3. A butterfly fitting comprising an engaging member which engages with a fixed member, a screw which is screwed into a screw hole formed in the engaging member, and a blade portion which has a hole for passing the screw at the center thereof. Due to
A member mounting structure for mounting a mounted member integrally having a plate-shaped mounting portion provided with a substantially U-shaped notch to the fixed member, wherein a blade portion of the butterfly metal fitting has a hole for passing the screw. In order to form a gap between the blade main body, the leg that is bent at right angles from the left and right ends of the blade main body and comes into contact with the fixing member, a gap is formed between the blade main body and an intermediate portion of the blade main body. A blade portion that is bent at a right angle from an upper edge or a lower edge, and inserts the blade main body portion in the gap position of the blade portion into the notch of the mounting plate, and the blade main body portion of the blade portion cuts the mounting plate. A member mounting structure characterized in that a screw is tightened until it contacts the edge of the notch and the leg contacts the fixing member.