JPH08189126A - Damped ceiling structure - Google Patents

Abstract

(57) [Summary] [Structure] A large amount of particulate matter 4 is placed on the back surface of the ceiling 1. [Effect] The floor 1 vibrates on the floor of the upper floor, or an object is dropped on the floor, floor vibration or impact sound is generated, and the ceiling 1 vibrates. As a result, the ceiling 1 is mounted on the ceiling 1. Even if the placed granular material 4 vibrates, since the individual granular materials are extremely light, the sound generated by the vibration of the granular material is extremely small,
Therefore, people on the lower floor cannot hear it. In addition, as a result of vibrating a large amount of granular materials separately, the vibration of the ceiling is absorbed, resulting in an extremely good damping ceiling.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration control ceiling structure in which vibration such as floor vibration or floor impact sound of the upper floor is difficult to be transmitted to the lower floor.

[0002]

2. Description of the Related Art As a vibration control ceiling structure in which vibrations such as floor vibrations and floor impact sounds of the upper floor are difficult to be transmitted to the lower floor, there is one disclosed in Japanese Patent Application Laid-Open No. 4-238935 previously filed by the applicant of the present application. is there. In the ceiling structure described in this publication, the ceiling is hung from the floor of the upper floor with a ceiling receiving material, and a weight is attached to the ceiling receiving material so that vibration such as floor vibration or floor impact sound is absorbed by the weight. .

[0003]

However, the ceiling structure described in the above publication is extremely preferable because the floor vibration and floor impact sound can be absorbed by the weight, but the weight is attached to the ceiling without the ceiling support material. There is a problem that you can not.
In addition, there is a problem that it is difficult to attach the weight to the ceiling receiving material. Therefore, an object of the present invention is to provide a damping ceiling structure that is easy to install and can be applied to a ceiling without a ceiling support member.

[0004]

The present invention has been made to achieve the above object, and the invention according to claim 1 has a large amount of particulate matter placed on the back surface of the ceiling. Is. According to the second aspect of the invention, a bag containing a large amount of particulate matter is placed on the back surface of the ceiling. Further, according to the invention of claim 3, a container in which a large amount of particulate matter is contained is attached to the edge of the back surface of the ceiling.

The particulate matter used in the invention described in claims 1 to 3 means a granular body such as pebbles, gravel, iron scraps, iron powder, etc., and particles having a specific gravity of 1 or more are particularly preferable. Therefore,
Iron powder or the like having a large specific gravity and inexpensive silica sand are suitable. In the invention according to claim 1, the large amount of particulate matter is placed on the back surface of the ceiling, but the placing method may be appropriate. For example, it may be placed directly on the back surface of the ceiling or may be attached to a field edge attached to the ceiling. Further, as described in claim 2, a large amount of particulate matter may be put in a bag such as a cloth bag or a plastic bag, and a large amount of particulate matter may be placed in a container. You can put it and attach this container to the field. As the container used in the invention described in claim 3, a synthetic resin container is suitable.

[0006]

When a large massive weight is placed on the ceiling, the weight also vibrates when vibrating on the ceiling due to floor vibration of the upper floor, floor impact sound, etc. There is a time lag, and therefore, the ceiling and the weight collide with each other to generate a secondary sound. Therefore, in the past, the weight was attached to the ceiling receiving member, but in the present invention, since the individual particulate matter is extremely light, the vibration of the ceiling and the vibration of the particulate matter are deviated in time, and the individual particulate matter is Even if a sound is generated from the sound, the generated sound is small and therefore the sound cannot be heard. Moreover, as a result of the large amounts of granular materials vibrating separately, the vibration of the ceiling is absorbed, resulting in an extremely good damping ceiling.

Further, as in the invention described in claim 2, a large amount of particulate matter is put in the bag, or like in the invention described in claim 3, a large amount of particulate matter is put in the container. Thus, even if the granular material vibrates, it will not be diffused. or,
According to the third aspect of the present invention, when it is attached to the field edge, even if a large amount of particulate matter is placed, the ceiling is not destroyed by the weight of the large amount of particulate matter.

[0008]

Next, embodiments of the present invention will be described. FIG. 1 shows an embodiment of the damping ceiling structure of the present invention, and is a perspective view showing a part of the ceiling viewed from above. FIG. 2 shows another embodiment of the damping ceiling structure of the present invention, and is a perspective view showing a part of the ceiling viewed from above.

First, the embodiment shown in FIG. 1 will be described. In FIG. 1, reference numeral 1 denotes a ceiling. The ceiling 1 is provided with a field edge 2 in a grid pattern, and a ceiling material 3 made of gypsum board is attached to a lower surface of the field edge 2. 4 is a granular material in which a large amount of silica sand is put in the bag 5.
The bag 5 is placed directly on the ceiling material 3. Next, the construction method and operation of the ceiling 1 will be described. The field edge 2 is attached to the ceiling portion of the lower floor, and the ceiling material 3 is attached to the lower surface of the field edge 2. A bag 5 containing a large amount of the granular substance 4 is placed on the ceiling material in some places, and the floor of the upper floor is mounted on the bag 5.

Thus, since the bag 5 is simply placed on the ceiling material 3, the construction is extremely simple. The floor vibrates by moving on the floor of the upper floor of the building constructed in this way, and when a floor impact sound is generated, the ceiling vibrates. At that time, the granular material 4 placed on the ceiling
The individual sand in the room vibrates, but the energy consumed by the vibration of the sand reduces the vibration of the ceiling,
Therefore, floor vibrations and floor impact noises are hard to be transmitted to the lower floors.
Even if it is transmitted, it is extremely small, so it will not bother people on the lower floor. Even if the granular material 4 in the bag 5 vibrates in this way, the granular material 4 does not spread because it is in the bag 5.

Next, the embodiment shown in FIG. 2 will be described. In FIG. 2, reference numeral 1a is a ceiling, and the ceiling 1a is provided with a field edge 2a in a grid pattern, and a ceiling material 3a made of gypsum board is attached to the lower surface of the field edge 2a. Reference numeral 5a is a container in which mounting pieces 52 are provided on both side edges, and a granular substance 4a made of a large amount of iron scrap is placed in the container 5a. The attachment piece 52 of the container 5a is attached to the field edge 2a of the ceiling material 3 with a screw 51.

Next, the construction method and operation of the ceiling 1a will be described. The field edge 2a is attached to the ceiling portion of the lower floor, and the ceiling material 3a is attached to the lower surface of the field edge 2a. The mounting piece 52 of the container 5a is placed on the field edge 2a of the ceiling 1a and the adjacent field edge 2a, and the screw 51 is mounted on the field piece 2a.
The container 5a is screwed into the field edge 2a, and a large amount of the particulate matter 4a is put therein. Then, the floor of the upper floor is attached on the ceiling 1a. As described above, since the container 5a is simply attached to the field edge 2a and the granular material 4a is put therein, the construction is extremely simple.

When the floor is vibrated by exercising on the floor of the upper floor of the building constructed in this way and a floor impact sound is generated, the ceiling vibrates. The granular substance 4a in the container 5a on which the above-mentioned is vibrated individually. At that time, the vibration of the ceiling is reduced due to the energy consumed by the vibration of the particulate matter 4a, so that the vibration of the floor and the floor impact sound are hard to be transmitted to the lower floor, and even if they are transmitted, they are extremely small. Since it is there, it does not bother people on the lower floor. Further, even if a large amount of the granular material 4a in the container 5a vibrates in this way, the large amount of the granular material 4a does not spread because it is in the container 5.

[0014]

According to the present invention, when the floor vibrates on the upper floor or an object is dropped on the floor, floor vibration or floor impact sound is generated and the ceiling vibrates. At that time, the particulate matter placed on the ceiling vibrates, and the energy absorbed by the particulate matter absorbs the vibration of the ceiling, resulting in a very good damping ceiling. Moreover, since a large amount of granular material is simply placed on the ceiling, the construction is extremely simple.

When a large amount of granular material is put in the bag as in the second aspect of the present invention, or when it is put in the container as in the third aspect of the present invention, the granular substance is generated. It is preferable because it is not diffused even when vibrated. Further, it is preferable that the ceiling is not broken due to the weight of a large amount of particulate matter if it is attached to the field edge as in claim 3.

[Brief description of drawings]

FIG. 1 shows an embodiment of a damping ceiling structure of the present invention,
It is a perspective view showing a part of ceiling viewed from above.

FIG. 2 shows another embodiment of the present invention and is a perspective view showing a part of the ceiling viewed from above.

[Explanation of symbols]

 1, 1a Ceiling 2, 2a Field edge 3, 3a Ceiling material 4, 4a Granular material (silica sand, iron scrap) 5 Bags 5a Container

Claims (3)

[Claims] 1. A vibration-damping ceiling structure characterized in that a large amount of particulate matter is placed on the back surface of the ceiling. 2. A vibration-damping ceiling structure, characterized in that a bag having a large amount of particulate matter contained therein is placed on the back surface of the ceiling. 3. A vibration-damping ceiling structure, characterized in that a container having a large amount of particulate matter contained therein is attached to the edge of the back surface of the ceiling.