JPH0537155Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a simple party. More specifically, the present invention relates to a simple party. Regarding Shion.

BACKGROUND TECHNOLOGY As a conventional simple partition, for example, as shown in FIG. There is one in which the surface of glass wool is covered with a woven fabric 22. This partition is mainly used for sound absorption, and glass wool is filled between the core material and the woven fabric.
It is designed to improve sound absorption performance, and by using it, indoor noise such as various office machines and conversations can be eliminated.

However, in the case of such conventional partitions filled with glass wool, although the sound absorbing effect of glass wool as a sound absorbing material is excellent, the glass wool itself has a wire diameter of several microns, and is not only made of long fibers. It contains short fibers that are approximately the same diameter as the wire, and if used for a long time, the fibers will be destroyed by contact with objects or the human body. There is a problem that it can be dispersed through the layers to the outside and, for example, be inhaled into the human body, causing lung cancer.

In addition, in recent years, in offices, etc., in order to improve the working environment of people and increase work efficiency, there has been a demand for partitions that have functions such as blowing cool air or scented air in addition to sound absorption. Summer.

In summary, conventional sound-absorbing partitions are known in which glass wool is filled between the core material and the woven fabric, but sound absorption can be achieved without using glass wool. Partitions that can blow air into the room and create a more comfortable working environment are completely unknown.

Problems to be solved by the invention The purpose of the invention is to solve these problems, and specifically, the purpose is to propose a simple partition that has sound absorption properties and can blow cool or scented air. shall be.

Means for Solving the Problems and Their Effects That is, the present invention consists of a three-dimensional structure consisting of a porous Al plate having communication holes on one or both sides, and an air portion on the back side of the porous Al plate. The structure is characterized in that the structure includes a blowing means or a blowing means and an aromatic agent-impregnated substrate.

Hereinafter, the present invention will be explained based on the drawings.

1 and 2 are longitudinal cross-sectional views of a simple partition according to an embodiment of the present invention, FIG. 3 is a graph showing the relationship between center frequency and sound absorption coefficient, and FIG. 4 is a graph showing the relationship between center frequency and sound absorption coefficient. FIG. 2 is a vertical cross-sectional view of an example of a conventional example.

1 is a porous Al plate, 2 is a steel plate, 10 is a blowing means, 10A is a fan, 10B is a motor, 15 is a support body, 15A, 15B are a frame body, 16 is an opening/closing means, 20 is a core material, 21 is glass wool , 22 is a woven fabric, and 30 is a fragrance impregnated substrate.

First, the partition shown in FIG. 1 is composed of a three-dimensional structure including a porous Al plate 1 and a steel plate 2 parallel to each other with a space between them, and a porous Al plate inside the steel plate 2. A support 15 is joined to the side, and frames 15A and 15B of a predetermined length are arranged at intervals in the vertical direction between the support 15 and the steel plate 2, and a blower means is mounted on the frame 15A. It is composed of 10 arranged. Porous Al plate 1
It has communicating pores and its average particle size is 100~
An Al or Al alloy powder sintered plate mainly having a thickness of 300 μm is preferably used.

Such a porous Al plate is, for example, the Al plate proposed by the applicant of the present application and described in Japanese Patent Application Laid-Open No. 53-90113.
Alternatively, it can be obtained by sintering Al alloy powder at high temperature without pressure. The porous Al plate thus obtained exhibits excellent sound absorption performance equivalent to or better than that of conventional glass wool sound absorption materials.

The three-dimensional structure is box-shaped with a square or polygonal cross section, and at least one side is made of a porous Al plate 1 and the other side is made of a steel plate 2, with a space between them. It is something. There is a layered space between the porous Al plate 1 and the support 15, and the distance between the spaces is preferably 50 m/m or more, for example. The support 15 may be made of, for example, wood, which is a skeleton that maintains the external shape of the partition, and may be a face plate, or a lattice with additional frames 15A and 15B as shown in FIG. It may be in the form of Further, as the support body 15, for example,
An example is 0.8m/m color steel plate. Note that each of the above numerical values is just an example, and the present invention is not limited thereto. Furthermore, it is possible to cover the porous Al plate or steel plate with a cloth such as woven cloth, and coating the porous Al plate will not change the sound absorption performance at all, while coating the colored steel plate will improve the appearance quality. improve. Further, by interposing frames 15A and 15B made of the same material as the support 15 between the support 15 and the porous Al plate at appropriate positions, bending rigidity can be ensured. Frame body 15A, 15
B is firmly screwed to the support 15, and fastened to the porous Al plate with screws and adhesive.

The air blowing means 10 is composed of a fan 10A and a motor 10B, and is placed on a frame 15A.

Further, an input cord (not shown) is connected to an indoor outlet outside the partition, while an ON/OFF switch for the blower means 10 is installed at an appropriate location in the partition. When the blower means 10 turns on the switch connected to the input outlet power source, the motor 10B is excited and the fan 1 is turned on.
The fan 0A rotates, and the fan 10A blows the air inside the partition to the outside of the partition through the communication hole of the porous Al plate. Of course, it is possible to make the ventilation surface of the porous Al plate partially open or have a ventilation port structure such as a louver, but even if the porous Al plate is used for the entire surface on one side as shown in Figure 1, it is possible to use other ventilation There is no need to provide an opening, and the flat aesthetic appearance of the surface is not impaired when viewed by the user. To install such a partition, the sounds of office equipment and conversation may be placed on the porous Al plate side. When such noise, that is, air vibration, reaches the porous Al plate 1,
Part of the energy is converted into frictional energy in this area and the sound is reduced.
Passing sound is reflected by the steel plate 2 and converted into the porous Al plate 1 again, reducing the sound. Furthermore, as shown in Figure 3, by setting the distance dimension of 1/4 of the center frequency of the sound as the thickness of the spatial layer inside the partition, the input wave and the reflected wave are canceled out, resulting in an effective sound absorption effect. bring.

That is, in Figure 3, the spatial layer thicknesses are 50, 75, and 50, respectively.
90 and 100 m/m, the relationship between noise frequency and sound absorption coefficient for each spatial layer thickness is shown. For example, if the frequency of the noise is high, the thickness of the spatial layer is designed to be thin, while if the frequency of the noise is low, the thickness of the spatial layer is designed to be thick.

In the above embodiment, the porous Al plate is arranged on one side of the partition. However, it may be arranged on both sides of the partition.
For example, prepare two copies of the structural example shown in Figure 1,
If it is made into an integral structure in which the back side is bonded to the steel plate 2, the air from the air blowing means 10 will be exhausted from both sides.

The simple partition shown in FIG. 2 is different from the simple partition shown in FIG. 1 in that the fragrance-impregnated substrate 30 and the opening/closing means 16 for inserting and removing the fragrance-impregnated substrate 30 into and out of the partition are arranged in the direction of the air blowing direction of the air blowing means 10. are arranged on a support body 15 and a steel plate 21. The aromatic agent-impregnated substrate 30 is made by press-compressing a material with good impregnability, such as felt fiber, and vacuum-impregnating it in an aromatic liquid. It may also be arranged on the front side of the means 10.
When the aromatic agent-impregnated base 30 is installed in a recess provided in the frame 15A, it is possible to prevent displacement due to air blowing. Further, the opening/closing means 16 is disposed at an appropriate position on the support body 15 and the steel plate 2 on the back side of the partition, and preferably at a position where the fragrance can be easily inserted and replaced. The fan 10A is rotated by the input of the power for the motor fan, and when blowing the air inside the partition, it also carries the aroma impregnated in the aromatic agent-impregnated base 30, and the aroma passes through the communication holes of the porous Al plate 1. and flows outside the party.

As explained above, the present invention may be configured in such a way that no fragrance is used, or, even if fragrance is used, several types of fragrances may be placed in the air flow path and one of them may be selected appropriately using a push-button type fragrance storage container lid opening and closing mechanism.

The present invention includes not only the above-mentioned simple partition, but also a continuous partition partition from the floor to the ceiling and a screen-type partition called a low partition. There is no particular difference from the configuration described in the embodiment, and the effects are also the same.

<Effects of the invention> As explained in detail above, the invention consists of a three-dimensional structure consisting of a porous Al plate having communication holes on one or both sides, and an air portion on the back side of the porous Al plate. The structure is characterized in that the structure includes a blowing means or a blowing means and an aromatic agent-impregnated substrate.

According to the present invention, a porous Al plate having communicating holes is formed on at least one side or both sides, and a blowing means or a blowing means and an aromatic agent-impregnated substrate are arranged inside, so that the fragrance accompanying the blowing of air flows through the porous holes. It flows into the room through the communication holes in the high-quality aluminum plate, creating a cooling sensation, and at the same time, it can be used without worrying about the health problems caused by the scattering of conventional glass wool.

[Brief explanation of the drawing]

FIG. 1 and FIG. 2 are longitudinal sectional views of a simple partition according to an embodiment of the present invention, respectively;
FIG. 3 is a graph showing the relationship between center frequency and sound absorption coefficient, and FIG. 4 is a longitudinal cross-sectional view of an example of a conventional example. Code, 1... Porous Al plate, 2... Steel plate, 10
...Air blowing means, 10A...Fan, 10B...Motor, 15...Support, 16...Opening/closing means, 20
... core material, 21 ... glass wool, 22 ... woven fabric, 30 ... fragrance impregnated substrate.

Claims (1)

[Scope of utility model registration request] Porous Al with communicating holes on one or both sides
It consists of a three-dimensional structure consisting of a plate and having an air section on the back side of the porous Al plate, and is characterized in that the structure is provided with an air blowing means or an air blowing means and an aromatic agent-impregnated base inside the structure. Simple partition.