JP2000257029A - Louver unit for vehicle traveling route - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a louver unit for vehicle traveling route excellent in each function of light modulation, sound absorption, sound isolation, and ventilation, difficult to be clogged with refuse, and easy in maintenance. SOLUTION: Many sheets of vane-shaped louver members 3 are disposed on the inside of a frame member 2 at intervals in the direction of a vehicle. In this case, a louver member 3 comprising a hollow box-shaped body having many through-holes and having front and rear surfaces forming an arc or a parabolic smooth curved cross-section convex in the traveling direction of the vehicle and a sound absorbing material filled into the hollow box-shaped body is used as the louver members 3. Because the front and rear surfaces of the louver member 3 have the arc or parabolic smooth curved shape, disturbance of air flow is less in ventilation, thus providing better air permeability. In addition, because the curved surface is smooth, dust and refuse are difficult to be accumulated between the louver members 3, eliminating the need for troublesome maintenance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a louver unit for a vehicle traveling path, which is installed at an entrance or exit of a tunnel of a motorway or a railway or a cut-out shape, and performs functions of dimming, sound absorption, sound insulation and ventilation. It is.

[0002]

2. Description of the Related Art A louver for a vehicle traveling road is constituted by arranging a number of wing-shaped louver members in parallel in the vehicle traveling direction, for example, at a doorway of a tunnel or the like, so as to reduce the difference between the luminance in the field and the luminance in the tunnel. It has been developed mainly for the purpose of dimming.

In Japanese Patent Publication No. 57-40288, as a louver for an automobile road, a large number of inclined flat louver members are installed in parallel from the south to the north so that light rays are projected on the inclined surface. There is described a louver member and a vertical barrier plate perpendicular to the louver member, in which light-transmitting pores are formed to improve the light control function.

In Japanese Patent Publication No. 58-10523, a large number of louver members, each of which is formed by bending a flat plate into a U-shape or a horizontal W-shape, are similarly juxtaposed from the south to the north. It describes that a louver member and a vertical barrier plate perpendicular to the louver member are formed with light-transmitting pores.

Further, in consideration of the sound absorption, sound insulation and ventilation effects of such a louver for a vehicle traveling road, a hollow louver member having a through hole as described in, for example, Japanese Utility Model Publication No. 6-47932. Filled with a sound absorbing material such as glass wool or rock wool has been developed.

[0006]

As for the light control function of the louver, an appropriate amount of sunlight is directly irradiated onto the vehicle traveling path as much as possible due to the overlap of the inclined surface or the curved surface between the louver members. It is necessary to take in the amount of light, and it is particularly desirable to make the interval between the louver members as narrow as possible or to make it difficult for sound to escape by using the bending of the louver members in terms of the sound insulation function.

On the other hand, if the interval between the louver members is too small or if there is a bent portion, the air permeability deteriorates and the ventilation function is deteriorated. In addition, dust adheres to the louver members and dust such as fallen leaves may be removed. There is a problem that the function of the louver is hindered by being clogged.

The present invention has been made to solve the above-mentioned problems in the prior art, and has excellent functions of light control, sound absorption, sound insulation and ventilation, is hardly clogged with dust, and is easy to maintain. It is an object of the present invention to provide a louver unit for a vehicle traveling path.

[0009]

According to a first aspect of the present invention, there is provided a louver unit for a vehicle traveling path, comprising a plurality of wing-shaped louver members arranged in parallel at intervals in a vehicle direction inside a frame member. A hollow box-shaped body having a large number of through-holes as the louver member, and forming a smooth arc-shaped or parabolic cross-section with a front surface and a rear surface convex in the vehicle traveling direction; and the hollow box-shaped body. Characterized in that a louver member made of a sound absorbing material filled in the inside is used.

[0010] The most common form of the frame member is a rectangular frame member made of a steel plate or the like. However, the outer shape and the like are not particularly limited. What is necessary is just to be able to be erected. If necessary, a girder material or the like can be added in the middle to reinforce.

Since the front and rear surfaces of the louver member have a smooth arcuate or parabolic curved surface, the turbulence of airflow in ventilation is small and the air permeability is good. In addition to the good air permeability, the smooth curved surface makes it difficult for dust and dirt to accumulate between the louver members, thereby eliminating troublesome maintenance.

Furthermore, since the air permeability is good and dust and dirt hardly accumulate, the interval between the louver members can be set small, the degree of freedom in designing direct light blocking and dimming is high, and the sound absorbing property is high. It is also advantageous in terms of sound insulation.

The fact that the front and rear surfaces of the louver member have a smooth curved shape of an arc or a parabola is not necessarily limited to the case where the whole is an arc or a parabola. Such a case is included. However, as a whole, the air flow passing between the louver members is made to be as smooth as possible without disturbing.

As the material of the hollow box-shaped body, a metal such as a steel plate, stainless steel, or aluminum is mainly used, but reinforced plastics or other synthetic resins may be used. Also, in the case of a metal hollow box, if the surface roughness is increased by dull finishing (matte gray mat), light reflection can be controlled in a form that diffuses light, and glare can be suppressed. .

Further, a photocatalyst can be applied to these surfaces to prevent surface contamination and purify exhaust gas. The method of forming the through holes in the hollow box is not particularly limited, but it is economical to form the hollow box with a punching metal or an expanded metal.

As the sound absorbing material, glass wool, rock wool or the like used in conventional louver members or the like can be used. However, any sound absorbing material that can be filled and held in a hollow box having a through hole can be used. Not limited.

According to a second aspect of the present invention, there is provided a louver unit for a vehicle traveling path in which a large number of wing-shaped louver members are arranged inside a frame member at intervals in a vehicle direction, wherein the louver members are: A louver member comprising a hollow box-shaped body having a large number of through holes, a front surface and a rear surface forming an S-shaped smooth curved cross section, and a sound absorbing material filled in the hollow box-shaped body was used. It is characterized by the following.

According to a second aspect of the present invention, the front and rear surfaces of the hollow box-shaped body have an S-shape with respect to the arc or parabola of the first aspect.
A sound insulation effect can be expected. However, the louver unit for a vehicle traveling path according to claim 1 is more advantageous in terms of ventilation effect and maintenance.

According to a third aspect of the present invention, in the louver unit for a vehicle traveling path according to the first or second aspect, a part of the louver member protrudes downward from another louver member. Is what you do.

When the present invention is applied to the entrance of a tunnel or the ceiling of a digging road, an airflow in the vehicle traveling direction is generated on the lower surface of the ceiling portion by a traveling vehicle passing below, so that a part of the louver member is projected downward. The airflow is captured, discharged to the outside together with exhaust gas, etc., and fresh air is taken in from the outside in the form of natural circulation of air to enhance the ventilation effect.

According to a fourth aspect of the present invention, in the louver unit for a vehicle traveling path according to the first, second or third aspect, a through hole is formed in a portion of the hollow box-shaped body exposed to the outside of the louver unit. No opening is provided, and the opening ratio of the portion that is not exposed to the outside of the louver unit is 50 to 70%.

The provision of no through-hole in the portion of the hollow box-shaped body exposed to the outside of the louver unit mainly prevents rainwater or the like from directly entering, and also allows dirt and dust to enter the interior filled with the sound absorbing material. In order to prevent this, there is no through hole in this portion, which is advantageous in terms of the sound insulation effect.

For other parts, the porosity is 50 to 70%.
The reason for this is to enhance the sound absorbing effect as much as possible.
However, if the aperture ratio is set to 70% or more, there is a possibility that the maintenance of the surface for holding the sound absorbing material and the inflow of some rainwater or dust may be troublesome.

It is considered that the use of a punching metal or an expanded metal is economical in order to achieve such an opening ratio. Further, in the case of punching metal, if the outer peripheral portion of the punching hole as a through-hole protrudes from the outer surface of the hollow box-like body, the effect of suppressing inflow of rainwater increases.

According to a fifth aspect of the present invention, in the louver unit for a vehicle traveling path according to the first, second, third or fourth aspect, the sound absorbing material has a low density at a lower portion of the hollow box-shaped body and a high density at an upper portion thereof. Is the case.

The purpose of the louver in the present invention includes a reduction of noise in a vehicle traveling path located below the louver and a reduction of noise escaping to the outside. Regarding the noise in the running path, the sound absorption performance is improved by keeping the density of the sound absorbing material at the lower part where the sound is transmitted directly relatively low, and the noise to the outside is reduced.
The sound insulation performance is improved by increasing the density of the sound absorbing material in the upper part compared to that in the lower part.

The density of the upper sound absorbing material and the density of the lower sound absorbing material are relative to each other, and the design thereof is based on the cross-sectional shape, dimensions, location conditions, etc. of a tunnel or a cut road where a louver is installed. Also depends on

[0028]

FIG. 1 shows an embodiment of a louver unit for a vehicle traveling road according to the present invention. The louver unit 1 comprises a frame member 2 in which vertical and horizontal beams 2a and 2b are assembled in a rectangular shape. A large number of wing-shaped louver members 3 each having an arc-shaped cross-section are arranged in parallel in the vehicle traveling direction and formed in a panel shape.

The louver unit 1 formed in such a panel shape is, for example, in the case of a cut road 11 shown in FIG.
The louver is installed on the opening to control light, absorb sound, block sound, and ventilate.

In this example, each of the louver members 3 has a smooth front surface and a rear surface formed in an arc-shaped smooth curved surface whose cross section is convex in the vehicle traveling direction, and constitutes an arc-shaped hollow box-shaped body as a whole. As shown in FIG. 3, the inside is filled with a sound absorbing material 4 such as glass wool.

As shown in FIG. 3, with respect to the adjacent louver members 3, the portion of the louver member 3 projecting forward in the vehicle traveling direction is formed on a vertical line connecting the portion of the louver member 3 projecting rearward. The inside of the vehicle (forward) is arranged so that direct sunlight does not enter the vehicle traveling path.

The louver member 3 filled with the sound absorbing material 4
The hollow box-shaped body is made of a punched metal having a large number of through-holes 5, and is configured to absorb noise when the vehicle passes through the sound-absorbing material 4 through the through-holes 5.

FIG. 4 is an explanatory view of the arrangement of the through-holes 5 and the opening ratio. In consideration of maintenance, sound absorption, and sound insulation effects, as shown in the figure, the outside of the louver unit is a hollow box-shaped body directly receiving rainwater. No through hole 5 is provided in the portion exposed to the side,
The porosity of the portion that is not exposed to the outside by the through hole is 50 to 7
It is desirable to set it to about 0%.

FIG. 5 is an explanatory diagram relating to the filling density of the sound absorbing material 4. The sound absorbing material 4 has a low density at the lower part of the louver member 3 and a high density at the upper part of the louver member 3. In addition, it is possible to enhance the sound absorbing effect on the sound generated inside and the sound insulating effect on the outside.

FIG. 2 shows an embodiment of a louver unit for a vehicle traveling road according to a third aspect of the present invention, in which some louver members 3a project downward from other louver members 3. Used.

The louver member 3a protruding downward from the other louver members 3 captures airflow in the vehicle traveling direction generated by the passage of the vehicle, thereby improving ventilation efficiency.

FIG. 6 shows an example of the shape and arrangement of the louver member 6 in one embodiment of the louver unit for a vehicle traveling road according to the second aspect of the present invention. On the other hand, it is S-shaped, and in combination with the sound absorbing material 4, a high sound absorbing effect and a sound insulating effect can be expected.

FIG. 7 shows an example of the shape and arrangement of the louver member 7 in another embodiment of the louver unit for a vehicle running road according to the first aspect of the present invention. A simple inverted J-shape that combines the above makes the air flow smooth, and the arc shape of the upper cross section makes it difficult for dust and dirt to accumulate.

[0039]

According to the louver unit for a vehicle running road of the present invention, the louver member has a smooth curved front and rear surface, so that good ventilation in ventilation can be obtained. Because the front and rear surfaces of the louver member have a smooth curved surface shape, in addition to good ventilation, dust and dirt are less likely to accumulate between the louver members, making maintenance for clogging between louver members, which was a major problem in the past, Easy. Since the air permeability between the louver members is good and dust and dirt hardly collect, the interval between the louver members can be reduced, and in combination with the curved shape of the louver members, direct sunlight is blocked, and the degree of light control is high. . Similarly, since the distance between the louver members can be reduced, it is advantageous in terms of sound absorption and sound insulation, and has a high degree of design freedom. In the invention according to claim 3, the louver member projecting downward from the other louver members has an effect of capturing the airflow in the vehicle traveling direction generated by the passage of the vehicle, and the exhaust gas generated by the vehicle is removed together with the airflow. The effect of discharging to the outside is high. In the invention according to claim 4, by providing no through-hole in a portion of the hollow box-shaped body exposed to the outside of the louver unit,
It prevents rainwater and dirt from entering directly, which is also advantageous in terms of sound insulation. Further, by setting the opening ratio to be as high as 50 to 70% for other portions, a large sound absorbing effect can be expected. According to the fifth aspect of the present invention, the sound absorbing material has a low density at the lower portion of the louver member, so that the sound absorbing effect on the sound generated inside can be enhanced, and the sound absorbing material has a high density at the upper portion of the louver member. Thereby, the sound insulation effect to the outside can be enhanced.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows one embodiment of a louver unit for a vehicle traveling road according to the present invention, wherein (a) is a vertical sectional view in a vehicle traveling direction, and (b) is a bottom view.

FIG. 2 is a vertical sectional view in a vehicle traveling direction showing one embodiment of a louver unit for a vehicle traveling path according to a third embodiment of the present invention.

FIG. 3 is a vertical sectional view showing an example of a shape and an arrangement of a louver member in the embodiment of FIG. 1 or FIG. 2;

FIG. 4 is an explanatory diagram relating to a hole opening ratio of a through hole according to claim 4 of the present application.

FIG. 5 is an explanatory diagram relating to a packing density of a sound absorbing material according to claim 5 of the present application.

FIG. 6 is a vertical sectional view showing an example of a shape and an arrangement of a louver member in one embodiment of a louver unit for a vehicle traveling road according to a second embodiment of the present invention.

FIG. 7 is a vertical sectional view showing an example of the shape and arrangement of a louver member in another embodiment of the louver unit for a vehicle traveling path according to claim 1 of the present application.

FIG. 8 shows a louver unit erection position when the louver unit for a vehicle traveling road of the present invention is used above an opening of a digging road, where (a) is a vertical sectional view in a direction perpendicular to the road, and (b) Is a plan view.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Louver unit, 2 ... Frame member, 2a ... Vertical beam, 2b
.. Horizontal beam, 3 ... louver member, 3a ... louver member protruding downward, 4 ... sound absorbing material, 5 ... through hole, 6 ... louver member,
7 ... louver member, 11 ... cutting road

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Motoo Matsumoto Inventor 1-21 Fusocho, Amagasaki-shi, Hyogo Sumitomo Metal Construction Materials Co., Ltd. Within the company (72) Eiji Kawasaki 2-1-1 Edobori, Nishi-ku, Osaka-shi, Osaka Sumitomo Metal Construction Materials Co., Ltd. (72) Inventor Takeshi 2-1-1 Edobori, Nishi-ku, Osaka-shi, Osaka Sumitomo Metal Construction Materials Co., Ltd. F term (reference) 2D001 AA02 BA01 BB01 CA02 CB03 CD03 DA04 DA07

Claims (5)

[Claims] 1. A louver unit for a vehicle traveling path comprising a plurality of wing-shaped louver members arranged in parallel at intervals in a vehicle direction inside a frame member, the louver member having a large number of through holes, A louver member composed of a hollow box-shaped body having a smooth arcuate or parabolic cross section whose front and rear surfaces are convex in the vehicle traveling direction and a sound absorbing material filled inside the hollow box-shaped body is used. A louver unit for a vehicle traveling path. 2. A louver unit for a vehicle running path comprising a plurality of wing-shaped louver members arranged in parallel at intervals in a vehicle direction inside a frame member, the louver member having a large number of through holes, A vehicle traveling path using a louver member including a hollow box-shaped body having a front surface and a rear surface forming a S-shaped smooth curved cross section, and a sound absorbing material filled in the hollow box-shaped body. Louver unit. 3. The louver unit for a vehicle traveling path according to claim 1, wherein a part of the louver member protrudes downward from another louver member. 4. A portion of the hollow box-shaped body which is exposed to the outside of the louver unit is not provided with a through-hole, and a portion of the portion which is not exposed to the outside of the louver unit has a porosity of 50-7.
The louver unit for a vehicle running path according to claim 1, wherein the louver unit is 0%. 5. The louver unit according to claim 1, wherein said sound absorbing material has a low density at a lower portion of said hollow box-shaped body and a high density at an upper portion thereof.