JP3623758B2 - Wooden soundproof panel - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is primarily the noise caused by the travel of the vehicles, in order to sound insulation or sound absorption, about the wooden acoustic panel noise barriers installed along the wayside of the highway and railway. In particular, the present invention uses wood to make the appearance gentle, to impart the toughness of the wood to the soundproof wall, and to make effective use of the wood, and also uses metal and concrete. corrosion of time, salt damage occurs or, about the name not soundproof wall for the wooden soundproof panel of degradation due to acid rain.
[0002]
[Prior art]
Conventionally, concrete panels, metal panels, plastic panels, etc. have been used for sound barriers installed along highways and railway lines in order to insulate and absorb the noise associated with the traveling of vehicles, etc. . However, these were dull in appearance, and artifacts such as concrete, metal and plastic were exposed on the surface, and the landscape was damaged.
Therefore, as a consideration for the landscape, an attempt has been made to use a wood panel in which logs are stacked on a soundproof wall using wood.
[0003]
Wood panels stacked with logs are good in appearance and do not harm the landscape when used on sound barriers installed along expressways and railway lines. However, over time, logs will dry out. Progresses and the log material is cracked or warped. Such cracks and warpage of the panel material cause gaps in the soundproof wall.
In order to enhance the effect as a soundproof wall, the use of a double wallboard, or the idea of packing a sound absorbing material such as glass wool in the space between the two wallboards of the front plate and the back plate has also been made However, while it increases only the cost, it is not always effective in preventing the sound leaking from the gap generated in the wall plate.
[0004]
[Problems to be solved by the invention]
The present inventors have solved the above-mentioned problems, obtain a soundproof wall that has a gentle appearance, does not harm the landscape, and is extremely unlikely to have a gap over a long period of time even if shrinkage due to drying or expansion due to rain is repeated. As a result, the present invention has been reached.
[0005]
[Means for Solving the Problems]
The present invention has been made to solve the above problems, stacked lamina, or laminated wood formed by the adhering the adjacent lamina wooden soundproof constituted soundproof wall by width strip material panel that provides. Furthermore, as the effect is larger ones, the present invention, the thickness of the lamina that Kyosu Hisage wooden acoustic panel for sound barrier is 10 to 300 mm. When using a wooden sound insulation panel, it is necessary to use a wooden sound insulation panel made by adhering packing to the contact surface with other wooden sound insulation panels. the contact surface between the pillars supporting the wooden acoustic panel, wooden acoustic panel formed by bonding the packing is required, the present invention is that Kyosu Hisage such wooden acoustic panel.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
As one usage method of the wooden soundproof panel concerning this invention, it can be used for the soundproof wall installed along a highway. As an image diagram, FIG. 1 shows an example used for a soundproof wall of an expressway. When used in this way, it is possible to remarkably suppress the transmission of vehicle noise to the outside of the sound barrier. Hereinafter, a wooden soundproof panel according to the present invention will be described with reference to the drawings.
[0007]
The lamina (4) used in the present invention is a substantially rectangular wood having a thickness (4a), a width (4b), and a length (4c) as shown in FIG. In order to improve the quality of the lamina, it is usually made by cutting out the defective parts such as large knots, holes, combs and crucibles when cutting from wood. Due to its quality, the ones that are made by removing defective parts such as fine knots, holes, combs and crucibles are of high quality.
Lamina is usually made by drying the board, removing the defects and cutting it, cascading it to the required length, and applying a canna. Next, an adhesive is applied and formed into a laminated material or a width strip material according to the application.
The lamina preferably has a thickness of 300 to 10 millimeters, more preferably 50 to 20 millimeters, and a width of 200 to 40 millimeters from the viewpoint of pressure resistance and drying efficiency.
Regarding the relationship between the thickness and the width, the thickness generally means a smaller numerical value than the width, and the numerical values may be the same.
[0008]
The laminated material according to the present invention is formed by applying an adhesive to the lamina, stacking it, and curing the adhesive. When stacked, what is stacked in the thickness direction is called laminated wood, and what is stacked in the width direction is called width stripping material. The wooden soundproof panel according to the present invention may be composed of laminated material or may be composed of width material, but is preferably laminated material. This is because the laminated lumber is superior to the width lumber in dimensional stability over time.
[0009]
The wooden soundproof panel according to the present invention is composed of the above-mentioned laminated material or width strip material, but may be composed of a single laminated material or width strip material, but in the case of a large wooden soundproof panel You may be comprised from several laminated material or width | variety strips.
In the case where a plurality of laminated materials or width strips are formed, it is preferable that the packing is bonded to the surface where the laminated materials or the width strips are in contact with other structures as shown in FIG. . FIG. 3 shows an example of a wooden soundproof panel according to the present invention. Laminae (4) is stacked in the thickness direction to form laminated wood (6). Further, a wooden soundproof panel (7) is configured by adhering packing (5) to a contact surface with another wooden soundproof panel and a contact surface with a support supporting the wooden soundproof panel.
[0010]
In the present invention, it is preferable that the packing is attached to at least a contact surface with another wooden soundproof panel or a contact surface with a support supporting the wooden soundproof panel. In view of the soundproofing effect, it is preferable that the wooden soundproofing panel has a packing attached to all the surfaces in contact with other structures.
As the material for the packing, those usually used as packing can be used, but a preferable one is a weather-resistant synthetic rubber.
[0011]
Next, the usage method of the wooden soundproof panel concerning this invention is demonstrated using figures. FIG. 4 is a perspective view of the soundproof wall when the wooden soundproof panel according to the present invention is inserted into a support made of H-shaped steel driven into the foundation. As shown in FIG. 1, the foundation (2) is constructed at the end of the road surface of the expressway, and the foundation is fitted with H-shaped steel as a support (9), and the wooden soundproof panel (7a) (7b), (7c) and (7d) are inserted into the recesses of the H-shaped steel of the two struts (9) to constitute the sound insulation wall (8). Packing is interposed between the upper and lower contact surfaces of the wooden soundproof panels (7a), (7b), (7c), and (7d), and no gap is generated. In addition, packing (5) is interposed between the contact surfaces of the wooden soundproof panels (7a), (7b), (7c), and (7d) and the H-shaped steel of the support column (9), so that no gap is generated.
[0012]
FIG. 5 shows that a wooden soundproof panel (7) according to the present invention is inserted into a pillar (9) made of H-shaped steel driven into a foundation (2) to constitute a sound insulation wall (8). FIG. 5 is a top plan view of a sound insulation wall in which a spring (10) is attached to a gap formed between an unbonded surface of the packing and the H-shaped steel and the wooden soundproof panel is strongly pressed against the H-shaped steel by the force of the spring. .
When the wooden soundproof panel (7) is inserted into the H-steel column (9) driven into the foundation (2) to form a sound insulation wall, the wooden soundproof panel (9) inserted into the H-shaped steel recess of the column (9) ( If the thickness of 7) is much thinner than the width of the concave portion of the H-shaped steel, a gap will be formed between the H-shaped steel and the wooden soundproof panel (7), and there is a risk of sound leaking. Therefore, as shown in FIG. 5, a spring (10) is attached between the non-adhered surface (7x) of the wooden soundproof panel (7) and the H-shaped steel (9x). Since this spring strongly presses the wooden soundproof panel (7x), the packing (5) and the wooden soundproof panel (7y) are strongly pressed against the H-shaped steel (9y) to prevent the leakage of sound by eliminating the gap. Yes.
If bolts are used to bring the wooden soundproof panel (7) into close contact with the H-shaped steel, the wood will shrink over the years, resulting in a gap between the H-shaped steel and the tree. In addition, when the tree is pressed against the H-shaped steel by a spring, no gap is generated between the H-shaped steel and the tree even if the tree contracts.
[0013]
FIG. 6 is a partial perspective view of a sound insulating wall having a sound absorbing function, that is, a sound absorbing wall (14), which is composed of a wooden soundproof panel (7) having a sound absorbing function. The sound absorbing wall (14) is constructed by attaching the lattice (11) and the glass wool layer (12) to the wooden soundproof panel (7) and inserting it into the recess of the H-shaped steel column (9) driven into the foundation (2). It was.
An air layer (13) is provided between the glass wool layer (12) and the wooden sound insulation panel (7). Part of the sound is attenuated between the lattices (11) and absorbed by the glass wool layer (12). Since the volume of sound insulation by the sound insulation wall (8) is reduced, the sound insulation effect is enhanced. Furthermore, the sound reflected by the sound insulation wall (8) is also absorbed by the glass wool layer (12),
Since it is attenuated by the grid (11), the sound is reduced even for the driver who drives the vehicle, and it is friendly to humans.
[0014]
The sound insulation wall shown in FIGS. 8 and 9 is a specimen subjected to a transmission loss test.
FIG. 8 is a sound source side elevational view of the sound insulation wall, and FIG. 9 is an AA cross-sectional view of the sound insulation wall.
The wooden sound insulation panel (7) constituting the sound insulation wall has a log half (15) attached to the sound source side. It is for decoration to bring out kindness that does not damage the scenery. Wooden soundproof panel (7)
Is inserted into the concave portion of the H-shaped steel of the support column (9), and then a wedge is driven to fix it to the H-shaped steel of the support column (9). With the force of the wedge, the wooden soundproof panel, together with the packing (5), is in close contact with the H-shaped steel on the side opposite to the wedge, thereby preventing sound leakage. Further, there is a packing (17) at the tip of the wedge (16), and the wedge (16) and the H-shaped steel are in close contact with each other.
This was subjected to a test at the Japan Architecture Research Institute (5-8-1, Fujishirodai, Suita-shi, Osaka). When the transmission loss was measured at the sound source side with 400 Hz and 1000 Hz sound at 100 dB, the 400 Hz sound transmission loss was 31.8 dB, and the 1000 Hz sound transmission loss was 38.1 dB. there were. This transmission loss was a high sound transmission loss that was never obtained in the woody system.
[0015]
【The invention's effect】
The wooden soundproof panel according to the present invention is made of a laminated material or laminating material formed by laminating laminae and adhering adjacent laminaes, so that cracking occurs even if time passes and drying progresses. No warpage or warp occurs, and no gap is generated in the soundproof wall. Therefore, no sound leakage occurs.
Moreover, the wooden soundproof panel according to the present invention is used for constructing a wooden soundproof wall using wood. Unlike the concrete panel, metal panel, plastic panel, etc., the appearance is tasteless dry, and the artifacts such as concrete, metal, plastic, etc. are exposed on the surface and the scenery is damaged, the wooden soundproof panel according to the present invention is It gives kindness and softness to people.
By using a wooden panel, the surface can be decorated aesthetically, for example, by applying a mural or diversifying the design by incorporating other materials. Furthermore, the wooden soundproof panel that has become unnecessary after replacing the wooden soundproof panel can be easily recycled and reused as a wooden material.
Furthermore, the wooden soundproof panel according to the present invention imparts the toughness of wood to the soundproof wall, and enables effective use of wood.
[Brief description of the drawings]
FIG. 1 is a diagram showing a soundproof wall made of a wooden soundproof panel according to the present invention installed along a highway.
FIG. 2 is a perspective view of a lamina.
FIG. 3 is a perspective view of a wooden soundproof panel.
FIG. 4 is a perspective view of a sound insulation wall.
FIG. 5 is a top plan view of the sound insulation wall of FIG. 4;
FIG. 6 is a partial perspective view of a sound insulating wall having a sound absorbing function.
7 is a top plan view of the sound insulation wall of FIG. 6. FIG.
FIG. 8 is an elevation view of a sound insulation wall on the sound source side. FIG. 9 is a cross-sectional view taken along line AA of the sound insulating wall of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Sound insulation wall 2 Foundation 3 Road 4 Lamina 5 Packing 6 Glue 7 Wooden sound insulation panel 8 Sound insulation wall 9 Strut 10 Spring 11 Lattice 12 Glass wool 13 Air layer 14 Wooden sound absorption wall 15 Log half 16 Wedge 17 Packing

Claims (3)

A soundproof wall wooden acoustic panel installed to sound insulation or sound-absorbing noise of a vehicle, stacking lamina laminated timber formed by the adhering the adjacent lamina or width strip material Tona Rukoto soundproof wall wooden soundproof panel according to claim. A is from 10 to 300 mm thickness of claims 1 soundproof wall wood soundproofing panel according lamina. Other contact Menma other wooden acoustic panel the contact surface between the pillars supporting the tree made soundproofing panels, made by bonding a packing according to claim 1 or 2 soundproof wall wood soundproofing panel according.

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