JPH1129909A - Panel mounting structure - Google Patents

Abstract

(57) An object of the present invention is to provide a panel mounting structure in which a mounting bolt can be inserted into and removed from an installation groove on a body edge from an arbitrary position, and the mounting bolt does not rotate unnecessarily. A head (31) of a mounting bolt (3) is inserted through a long hole (21) of a panel (2) abutting on a body edge (1) into an installation groove (12) of the body edge (1) from an opening edge (11). The panel 2 is attached to the body edge 1 by rotating the panel 2 by approximately 90 degrees so as to lock the opening edge 11 and tighten the nut 5. The mounting bolt 3 has a substantially square detent step 33 formed at the base of the screw 32, and the head 31 is curved in an arc shape toward the screw 32, and the head of the mounting bolt 3 is located in the mounting groove 12. With the rotation of the rotation preventing step 33 between the opening edges 11 in a state where the insertion bolt 31 is inserted and rotated by approximately 90 degrees, the rotation of the mounting bolt 3 is prevented, and the bent head 31 is elastically deformed by tightening the nut 5. Then, it is pressed and locked to the inner surface of the opening edge 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the mounting of a panel mainly for the purpose of beautification on the lower part of an elevated structure such as a bridge or an elevated road bridge, or on the wall surface of a general building or the ceiling of an underpass. It is about structure. .

[0002]

2. Description of the Related Art Conventionally, as a mounting structure of a panel to be mounted on a lower part of an elevated structure such as a bridge or an elevated road bridge, as shown in FIG. 5, a mounting groove having an opening edge a protruding inward over the entire length as shown in FIG. b is attached to the lower part of the elevated building, a required number of mounting bolts d are inserted from the ends of the rim c, and the mounting bolt d is moved to a predetermined position. , The panel f is brought into contact with the body edge c, and the mounting bolt d is inserted into the mounting hole g formed in the edge of the panel f.
And then tighten the nut h to remove the panel f
Is attached to the waist edge c.

[0003]

However, in the panel mounting structure as described above, a required number of mounting bolts must be inserted in advance into the mounting groove on the body edge in mounting the panel. Since this mounting bolt must be inserted from the end of the body edge, when using a long body edge, the mounting bolts inserted from the end must be slid one by one to a predetermined position. There was a problem that it took a lot of time. Also, when the mounting bolts need to be replaced, such as when the mounting bolts are damaged, the mounting bolts cannot be replaced unless the panel is removed, resulting in poor workability.

Accordingly, the present applicant has filed a Japanese Patent Application No. 8-15140.
No. 6 proposed a panel mounting structure that solved the above-mentioned problems. The mounting structure of this panel is as follows. First, the panel is abutted against the rim so that the through-hole of the panel fits into the mounting groove of the rim, and then through the through-hole of the panel and into the mounting groove of the rim from the opening edge. The panel is fixed to the body edge by inserting the head of a T-shaped mounting bolt, then rotating the mounting bolt approximately 90 degrees to lock it on the opening edge and tightening the nut. In contrast to the usual hexagonal bolt used as a bolt, by using a T-shaped mounting bolt, the mounting bolt can be inserted into and removed from the mounting groove from any position on the body edge. is there.

Further, an elastic body such as synthetic rubber is provided on the head surface of the T-shaped mounting bolt, and a ridge is formed along the inner wall of the opening edge of the body edge. A hook is formed at the left and right ends of the head of the mounting bolt, and the hook of the mounting bolt head, which is inserted into the mounting groove of the body edge and rotated by approximately 90 degrees, is opened by the elastic body. By pressing and engaging with the ridges on the inner wall, the mounting bolt is prevented from rotating unnecessarily when tightening the nut or after tightening the nut.

However, in this panel mounting structure, the hook of the head of the mounting bolt is engaged with the ridge of the inner wall of the opening edge so as not to rotate due to the pressing force of the elastic body. The elastic body deteriorates, the pressing force decreases, the effect of preventing rotation is weakened, or the mounting bolt is unnecessarily rotated and falls off due to the loosening of the mounting bolt due to vibrations etc. when passing through the vehicle. There is.

Therefore, the present invention solves the above-mentioned problems,
An object of the present invention is to provide a panel mounting structure in which a mounting bolt can be inserted into and removed from an installation groove from an arbitrary position on a body edge, and the mounting bolt does not rotate unnecessarily.

[0008]

In order to achieve the above object, the present invention has the following arrangement. That is, the panel mounting structure according to the present invention has a body edge in which an opening edge is formed along the length direction and a width that allows the head to be inserted into the mounting groove from the opening edge. And a panel with a substantially T-shaped mounting bolt projecting to the left and right, and a panel with a long hole through which the head of the mounting bolt can be inserted. Then, insert the head of the mounting bolt into the mounting groove of the body edge from the opening edge, then rotate the mounting bolt approximately 90 degrees to lock it to the opening edge and tighten the nut to attach the panel to the body edge. The mounting bolt has a substantially square detent step formed at the root of the screw, and the head is curved in an arc shape on the screw side, and the mounting bolt is provided in the mounting groove. With the head of the mounting bolt inserted and turned approximately 90 degrees, stop rotation Rotation of the mounting bolt is prevented by positioning the step between the opening edges, and the curved head is elastically deformed by tightening the nut so that the curved head is pressed into engagement with the inner surface of the opening edge. It is.

According to the present invention, a T-shaped mounting bolt is used, and the head of the mounting bolt is inserted into the mounting groove of the body edge from the opening edge through the long hole of the panel abutting the body edge. Insert
After that, the mounting bolt is rotated by approximately 90 degrees to be locked on the opening edge, and the panel is mounted on the body edge by tightening the nut. Therefore, the mounting bolt is inserted into the mounting groove from an arbitrary position on the body edge. And can be removed.

The mounting bolt has a substantially square detent step formed at the root of the screw and has a head curved in an arc shape on the screw side, and the head of the mounting bolt is inserted into the mounting groove. The rotation of the mounting bolt is prevented by positioning the rotation stop step between the opening edges in a state in which the opening is rotated approximately 90 degrees, and the curved head is elastically deformed by tightening the nut, and is pressed into engagement with the inner surface of the opening edge. It has been made to be. Therefore, unnecessary rotation of the mounting bolt is reliably prevented when the nut is tightened or after the nut is tightened by the rotation preventing step. In addition, the curved head is elastically deformed by tightening the nut and pressed against the inner surface of the opening edge, so that the mounting bolt is prevented from loosening due to vibration etc. when passing through the vehicle, and unnecessary rotation of the mounting bolt is also ensured. Is blocked.

[0011]

Next, an embodiment of the present invention will be specifically described with reference to the drawings. 1 is an exploded perspective view showing an embodiment of the present invention, FIG. 2 is a sectional view of a main part, FIG. 3 is a perspective view of a mounting bolt, and FIG. 4 is a bottom view showing another embodiment of the mounting bolt. is there.

Reference numeral 1 denotes a body edge which is attached to a lower part of an elevated structure such as a bridge or an elevated road bridge, for example, and has a mounting groove 12 having an opening edge 11 protruding inward and formed along the length direction. I have. The body edge 1 is generally made of an extruded material such as an aluminum alloy, but may be made by bending a steel plate or a stainless steel plate. The rim 1 is generally used in a length of 2 m or more.

Reference numeral 2 denotes a panel attached to the body edge 1. By attaching the panel 2, a lower part of an elevated structure such as a bridge or an elevated road bridge is concealed, and the appearance is improved. The panel 2 is formed by bending a metal plate such as a steel plate or an aluminum plate into a hat-shaped cross section as appropriate, and the surface thereof is appropriately subjected to surface treatment such as painting or plating. A plurality of insertable long holes 21 are formed.

Reference numeral 3 denotes a mounting bolt, and a head 31 projects left and right from the opening edge 11 of the body edge 1 with a width capable of being inserted into the mounting groove 12, and has a substantially square shape at the base of the screw 32. A stop step 33 is formed and the head 31 is
It has a substantially T-shape curved in a bow shape on two sides.

In general, the material of the mounting bolt 3 is prepared by processing a suitable metal such as stainless steel, mild steel, titanium, or an aluminum alloy by cold forging or cutting, and performing an appropriate surface treatment. It may be manufactured by molding a thermoplastic resin such as polyvinyl chloride, polyethylene, and polystyrene.

The panel 2 is mounted on the body edge 1 by the mounting bolts 3. That is, first, the mounting groove 1
The panel 2 is brought into contact with the front surface of the body edge 1 so that the long hole 21 of the panel 2 is aligned with the panel 2, and then the T is inserted through the long hole 21 of the panel 2 and into the mounting groove 12 of the body edge 1 from the opening edge 11. The head 31 and the detent step 33 of the letter-shaped mounting bolt 3 are inserted. Thereafter, the mounting bolt 3 is rotated by approximately 90 degrees, and the bolt is slightly pulled out while being rotated by approximately 90 degrees.
The rotation of the mounting bolt 3 is prevented by positioning the rotation preventing step 33 between the opening edges 11. Next, in a state where the rotation of the mounting bolt 3 is stopped, the oblong hole 21 of the panel 2 is
A washer 4 is attached to the screw 32 of the mounting bolt 3
Screw in nut 5 and tighten. The curved head 31 is elastically deformed by the tightening of the nut 5 and is pressed and locked on the inner surface of the opening edge 11, and the panel 2 is attached to the body edge 1.

The step 33 for preventing rotation of the mounting bolt 3
In particular, if the dimension between the two sides 34, 34 of the detent step 33 facing the opening edge 11 when the mounting bolt 3 is inserted is set to a dimension that allows insertion from the opening edge 11 into the mounting groove 12, there is no particular problem. Although not provided, the two sides 35, 35 of the detent step 33 facing the opening edge 11 in a state of being rotated by approximately 90 degrees.
The dimension between them is slightly smaller than the dimension between the opening edges 11 so that the detent step 33 does not play in the rotational direction between the opening edges 11, and the dimension is set as small as possible. preferable.

Although the plane shape of the head 31 of the mounting bolt 3 is substantially rectangular in the drawing, it is necessary to prevent the corner 36 from hitting the inner surface of the mounting groove 12 when rotated by 90 degrees. . As shown in FIG. 4, the corner 36 may be drawn in an arc from the center so that the dimension from the center to the corner 36 on the side that comes into contact with the inner surface of the mounting groove 12 is reduced by rotation. However, the planar shape of the head 31 is not particularly limited.

[0019]

According to the present invention, a T-shaped mounting bolt is used, which penetrates the long hole of the panel abutting the body edge, and is inserted into the mounting groove of the body edge from the opening edge. The panel is fixed to the body edge by inserting the part and then rotating the mounting bolt approximately 90 degrees to lock the opening edge and tightening the nut, so that the mounting bolt can be attached to any part of the body edge. It can be inserted and removed from the mounting groove from the position.

The mounting bolt has a substantially square detent step formed at the root of the screw and has a head curved in an arc shape on the screw side. The head of the mounting bolt is inserted into the mounting groove. The rotation of the mounting bolt is prevented by positioning the rotation stop step between the opening edges in a state in which the opening is rotated approximately 90 degrees, and the curved head is elastically deformed by tightening the nut, and is pressed into engagement with the inner surface of the opening edge. It has been made to be. Therefore, unnecessary rotation of the mounting bolt is reliably prevented when the nut is tightened or after the nut is tightened by the rotation preventing step. In addition, since the curved head is elastically deformed by tightening the nut and pressed against the inner surface of the opening edge, the mounting bolt is prevented from loosening due to vibration etc. when passing through the vehicle, and unnecessary rotation of the mounting bolt is also ensured Is blocked.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a main part showing one embodiment of the present invention.

FIG. 3 is a perspective view showing a mounting bolt of FIG. 1;

FIG. 4 is a bottom view showing another embodiment of the mounting bolt.

FIG. 5 is an exploded perspective view showing a conventional panel mounting structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body edge 11 Opening edge 12 Mounting groove 2 Panel 21 Slot 3 Mounting bolt 31 Head 32 Screw 33 Detent step 34 Side of detent step 35 Side of detent step 36 Corner 4 Washer 5 Nut

Claims (1)

[Claims] 1. A body edge in which a mounting groove whose opening edge protrudes inward is formed along the length direction, and a head projects from the opening edge to the left and right with a width capable of being inserted into the mounting groove. A substantially T-shaped mounting bolt, and a panel provided with a long hole through which the head of the mounting bolt can be inserted. The head of the mounting bolt is inserted into the mounting groove, and then the mounting bolt is rotated by approximately 90 degrees to be locked on the opening edge, and the panel is mounted on the body edge by tightening the nut. The mounting bolt has a substantially square detent step formed at the root of the screw, and the head is curved in an arc shape on the screw side, and the mounting bolt has a head in the mounting groove. After inserting and rotating it approximately 90 degrees, place the detent step between the opening edges. The mounting structure of the panel is characterized in that the rotation of the mounting bolt is prevented by the above, and the curved head is elastically deformed by tightening the nut so as to be pressed against the inner surface of the opening edge.