JPS58195700A - Light and sound shielding looper - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a louver that is used by being arranged in a shelf-like manner above an entrance and an exit.

Drivers of cars traveling on expressways tend to slow down when they approach a tunnel because it is dark in front of them, which causes traffic jams in front of the tunnel and causes accidents. It is known that there are Furthermore, it is known that the sound pressure distribution due to noise generated by automobiles becomes large at the corners of tunnel entrances, and as a countermeasure against this noise, sound insulation can be provided using louvers.

In order to eliminate these causes, it is necessary to adjust the brightness of the road surface in front of the tunnel.

However, shielding the road surface in front of the tunnel from sunlight and controlling the brightness of the road surface using electric lights is not preferable because it requires a large amount of power and other maintenance costs. Therefore, as shown in Figure 1, louvers 2, which are formed in a lattice shape with diagonal members made of plate materials inclined approximately 600 degrees from the horizontal and facing south, are installed in the front part of the tunnel L for about 30 m, and in the short distance between the tunnels. It is planned to be placed above the road surface between tunnels to dim the light and insulate the road surface.

Such large louvers require a lot of effort to assemble, and the construction cost is greatly influenced by the assembly cost.

The present invention aims to provide a light-shielding/sound-insulating louver whose construction cost can be reduced by using vertical members and diagonal members formed of one continuous material.

The invention will be explained with reference to the drawings.

In the following drawings, the thicknesses of the belt-shaped flat plate materials are omitted because the illustrations would be complicated.

In FIG. 2, numeral 3 indicates a belt-shaped flat plate material before being bent into a step-like shape. The strip-like flat plate material 3 has an equal width W over its entire length. When this strip-shaped flat plate material 3 is bent into a step-like shape along a plurality of lines inclined at the same angle with respect to the longitudinal edges indicated by dotted lines so that the height a and width of each step are equal, the result is as shown in Fig. 3. , Fig. G, and Fig. S. The bent corner □ 3C is bent so that the height] 3a and the width surface 3b are lI and O to form a bond. A plurality of the step-shaped flat plate materials 3 are arranged so that their longitudinal edges q lie along one plane, and are placed side by side so that only the bent corners 3C are in contact with each other, and the bent corners 3c are welded and screwed together. If they are combined equally, a lattice-like body in which the height surface 3a and the width surface 3b are inclined with respect to the parallel planes is obtained. The present invention uses this as a light-shielding/sound-insulating louver.

When used simply as a light-shielding louver, an aluminum plate, a steel plate, etc. can be used as the band-shaped flat plate material 3, and as a sound-insulating louver, a sound absorbing material is applied to one or both sides of these plates. When making a louver for an automobile road, by setting the inclination angle q of the width surface 3b with respect to the parallel surface to be AC3, and selecting the height a relative to the width W of the strip-shaped flat plate material 3, the angle of inclination q with respect to the parallel surface is ! I-tune line! Above, one side of one width surface 3b (lower side when flat or vertical) The other side of surface 3b (
A □ is used so that the □ overlaps the longitudinal edge of the -1- side when the flat surface is horizontally turned.

According to the present invention, since the louver can be constructed only from band-like flat plate materials formed in a step-like shape, the number of assembly steps can be significantly reduced compared to the case where diagonal members and vertical members are separately manufactured. Since loss can be almost completely eliminated, construction costs can be significantly reduced when making large items such as road louvers.

Note that the louver of the present invention can be used as a general indoor or outdoor louver.

[Brief explanation of drawings]

No. 1 IJ is a cross-sectional view showing the arrangement of light-shielding/sound-insulating louvers on expressways, Fig. 2 is a plan view of the □ band-shaped flat plate material used for the light-shielding/sound-insulating louvers of the present invention before being bent into a step shape, and Fig. 3 is A plan view of an embodiment of a band-shaped flat plate material formed in a stepped shape, which is a component of the light-shielding/sound-insulating louver of the present invention, FIG. 7 is a side view of FIG. 3, FIG. S is a front view of FIG. 3,
FIG. 6 is a plan view of an embodiment of the light-shielding/sound-insulating louver of the present invention constructed using the band-shaped flat plate material shown in FIGS. 3-S. l...tunnel, co...louver, 3...belt-shaped flat plate material,
34L...height surface, 3b...width surface, 3c...bent corner, g...longitudinal direction, W...width of band-shaped flat plate material, a...height of step, b...width of step, l ...A line perpendicular to the vertical plane of the strip-shaped flat plate material, q...The angle of inclination of the width surface 3b with respect to the vertical plane.

Claims (2)

[Claims] (1) A plurality of strip-shaped flat plates are bent along a plurality of straight lines tilted at the same angle at intervals with respect to the longitudinal edge to form a step shape with equal step height and width. A light-shielding/sound-shielding louver characterized in that its longitudinal edges lie along a plane, and the louvers are arranged side by side so that only the bent corners touch each other and are joined together at the corners. (2) The scope of claims (1) in which the longitudinal bending lines of one flat sheet material are formed so that the other lines at the bending angles overlap each other on a line perpendicular to the vertical planes of the flat sheet materials (1).
) Light-shielding/sound-blocking louver described in section 2.