US20220412102A1

US20220412102A1 - Impact-absorbing device and structure for blocking noise between floors by using same

Info

Publication number: US20220412102A1
Application number: US17/755,261
Authority: US
Inventors: Min Ho Kang
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-25
Filing date: 2020-10-12
Publication date: 2022-12-29
Also published as: WO2021080225A2; KR102341255B1; WO2021080225A3; EP4050181A2; KR20210049295A; CN114599847A; JP2022554140A

Abstract

An impact-absorbing device and a structure for blocking noise between floors by using same are proposed. The impact-absorbing device has a body (100) including an upper cylinder (120), of which the inside is empty and which has an opening opened downward, and a lower container (140), of which the upper end is inserted into the upper cylinder (120), so that the length thereof can extend and contract has an elastic support (160) formed in the transverse direction inside the upper cylinder (120) and/or the lower container (140), and includes a transmitting body (180), which is supported by the elastic support (160) so as to transmit, to the elastic support (160), impact applied to the upper cylinder (120), and thus impact is absorbed since the elastic support (160) is elastically deformed by the transmitting body (180) while the length of the body (100) is reduced due to the impact.

Description

TECHNICAL FIELD

The present disclosure relates to an impact-absorbing device and a structure for blocking noise between floors by using the same and, more particularly, to a device configured to absorb an impact generated from a bottom of a building and a structure configured to block noise between floors generated from the building by using the device.

BACKGROUND ART

In recent years, the form of buildings has been concentrated into multi-story apartment buildings, such as apartments and villas. In these apartment buildings, noise between floors inevitably occurs due to an impact to a floor, and the conflict between residents due to the noise is emerging as a major social problem. Therefore, in order to secure quiet residential environment, efforts for implementing the impact noise blocking performance of a floor have been made.
The floor impact noise is divided into a heavy impact noise, such as noise generated when children run, and a light impact noise, such as a noise made when a chair is moved. Herein, a main cause of conflict due to the noise between floors is heavy impact noise, and reinforcement of a structure is proposed as a solution, such as increasing the thickness of a concrete slab of a floor of a building. However, when the thickness of the floor slab of the building is increased, as the weight of the building is increased as well as the amount of the floor slab, the dimensions of major structural members such as beams, columns, and foundations also are increased. Therefore, there is a problem in that the amount of structure and construction cost of the building are inevitably increased, which lowers the economic efficiency of the building.

DISCLOSURE

Technical Problem

Accordingly, the present disclosure has been made keeping in mind the above problem occurring in the related art, and an objective of the present disclosure is intended to provide an impact-absorbing device, which is configured to significantly reduce noise between floors of a building to secure quiet residential environment, and a floor structure of the building, which blocks noise between floors by using the same.

Technical Solution

The present disclosure has been made keeping in mind the above problem occurring in the related art, and the present disclosure is intended to provide an impact-absorbing device configured to elastically absorb an impact, and to provide a structure configured to reduce noise between floors by using the impact-absorbing device when a floor of a building is constructed.

Advantageous Effects

According to the present disclosure, the noise between floors can be significantly reduced, so that a building with quiet residential environment can be constructed.

DESCRIPTION OF DRAWINGS

FIG. 1 is a view showing an example of an impact-absorbing device according to the present disclosure;

FIG. 2 is an exploded-view showing the impact-absorbing device according to the present disclosure;

FIG. 3 is a sectional view showing the impact-absorbing device according to the present disclosure;

FIG. 4 is a view showing an example where the impact-absorbing device according to the present disclosure absorbs an impact.

FIG. 5 is a view showing a transmitting body according to another embodiment of the present disclosure;

FIG. 6 is a view showing an example of the impact-absorbing device according to another embodiment of the present disclosure; and

FIG. 7 is a view showing an example of a bottom structure to which the impact-absorbing device according to the present disclosure is applied.

MODE FOR INVENTION

The present disclosure proposes an impact-absorbing device and a structure for blocking noise between floors by using the impact-absorbing device. The present disclosure will be described in detail with reference to accompanying FIGS. 1 to 7 .
First, the impact-absorbing device will be described. FIG. 1 is a view showing an example of an impact-absorbing device according to the present disclosure. FIG. 2 is an exploded-view showing the impact-absorbing device according to the present disclosure. FIG. 3 is a sectional view showing the impact-absorbing device according to the present disclosure.
As described above, the impact-absorbing device according to the present disclosure includes an upper cylinder 120 having an empty inside portion and an opening opened downward and a lower container 140 coupled to the upper cylinder 120. The impact-absorbing device is configured to reciprocate while the lower container 140 is partially inserted into the upper cylinder 120, so that the length thereof may extend and contract. Herein, the lower container 140 may have also an empty inside space and an opening opened upward as the upper cylinder 120.
A support plate 122 may be provided on the outer circumference of the upper cylinder 120. The support plate 122 may be provided at a lower portion of the upper cylinder 120. A fastening protrusion 102 may be provided on an upper end of the upper cylinder 120. As the fastening protrusion 102 is provided on the upper end of the upper cylinder 120, the fastening protrusion 102 may be provided on an upper end of a body 100.
At least one of the upper cylinder 120 and the lower container 140 includes an elastic support 160 therein, and the elastic support 160 is arranged in a transversal direction. In a case of providing the elastic support 160 in the upper cylinder 120, the elastic support 160 is provided in a location spaced apart from the ceiling at a predetermined gap, and in a case of providing the elastic support 16 in the lower container 140, the elastic support 160 is provided in a location spaced apart from the bottom in the elastic support 160 at a predetermined gap.
The elastic support 160 is configured to elastically contract and extend while securing sufficient strength, and the elastic support 160 may be made of a steel wire as shown in the drawing. A plurality of steel wires is provided such that opposite ends thereof are securely fixed to edges of the upper cylinder 120 and the lower container 140. Herein, it is preferable that each of the steel wires is arranged to pass through the center of weight in a sectional direction of the upper cylinder 120 and the lower container 140. Therefore, when the elastic support 160 is formed of the plurality of steel wires, the steel wires cross each other while passing through the center of weight, thereby providing the shape in which the steel wires radially spread from the center of weight.
Meanwhile, in addition to the steel wires, the elastic support 160 may be made of a metal mesh, metal plate, plastic plate, etc. When a structure may support an external force, be elastically deformed, and absorb an impact, the structure may be adopted as the elastic support 160.
According to the present disclosure, the impact-absorbing device includes a transmitting body 180 provided inside the body 100. The transmitting body 180 may be configured to be supported by the elastic support 160. In a case where the elastic support 160 is provided in the upper cylinder 120, an upper end of the transmitting body 180 is in contact with the elastic support 160 and a lower end thereof is in contact with the bottom in the lower container 140. In a case where the elastic support 160 is provided in the lower container 140, the upper end of the transmitting body 180 is in contact with the ceiling of the upper cylinder 120 and the lower end thereof is in contact with the elastic support 160. In a case where the elastic support 160 is provided in both the upper cylinder 120 and the lower container 140, the upper end and the lower end of the transmitting body 180 may be in contact with the elastic supports 160 in the upper cylinder 120 and the lower container 140.
When an impact is applied to the upper cylinder 120, the transmitting body 180 provided as described above transmits the impact to the elastic support 160. Then, the elastic support 160 is elastically deformed and absorbs the impact. In this process, the lower container 140 is moves into the upper cylinder 120 and thus the length of the body 100 is reduced, and after the impact is absorbed, the length of the body 100 extends and is restored to the initial length thereof to absorb the impact.
The transmitting body 180 may have a cylindrical shape. The transmitting body 180 may be made of a rubber material with elasticity. In the above configuration, a groove 182 is formed in a portion of the transmitting body 180 in contact with the steel wire, so that the steel wire is fitted into the groove 182. Therefore, the transmitting body 180 is stably provided.
A through hole 104 may be provided at any one of the upper cylinder 120 and the lower container 140. A plurality of through holes 104 may be provided at any one of the upper cylinder 120 and the lower container 140, and according to this configuration, air may be moved into and from the body 100 in a process where the body 100 contracts by acting on the impact. Therefore, contraction and extension movement of the body 100 is efficiently performed.
Then, a sound-absorbing material may be filled inside the body 100. The sound-absorbing material absorbs noise generated in a process where the body 100 absorbs an impact.
Then, the upper cylinder 120 and the lower container 140 may be coupled to each other without being separated in the contraction and extension movement. This coupling may be achieved by applying elastic silicone at predetermined intervals on a portion where the upper cylinder 120 and the lower container 140 are connected to each other. The present disclosure is not limited to the embodiment, and when a structure is contractible and extendable but not separated, the structure may be applied.
FIG. 4 is a view showing an example where the impact-absorbing device according to the present disclosure absorbs an impact.
When a load is applied to the impact-absorbing device according to the present disclosure, the length of the body 100 is reduced while the lower container 140 is moved into the upper cylinder 120. When a load is applied to the upper cylinder 120 while the lower container 140 is supported, the upper cylinder 120 is lowered and the length of the body is reduced. Therefore, the elastic support 160 is pressed by the transmitting body 180 to be elastically deformed and supports the load. Accordingly, the impact is elastically absorbed.
FIG. 5 is a view showing the transmitting body according to another embodiment of the present disclosure.
As described above, the transmitting body 180 according to the present disclosure may have a spherical shape. The transmitting body 180 may be made of a material such as rubber with elasticity and may be provided to be supported by the elastic support 160.
FIG. 6 is a view showing an example of the impact-absorbing device according to another embodiment of the present disclosure.
As shown in the drawing, in the impact-absorbing device according to the present disclosure, the elastic support 160 may be provided only in the lower container 140. In this case, the upper end of the transmitting body 180 is in contact with the ceiling in the upper cylinder 120 and the lower end of the transmitting body 180 is supported by the elastic support 160. Although not shown in the drawing, alternately, the elastic support 160 may be provided only in the upper cylinder 120.
Hereinbelow, a structure of blocking noise between floors by using the impact-absorbing device according to the present disclosure as described above will be described. FIG. 7 is a view showing an example of a bottom structure to which the impact-absorbing device according to the present disclosure is applied. The impact-absorbing device according to the present disclosure is applied to a bottom structure of a building.
As shown in the drawing, the structure for blocking noise between floors according to the present disclosure is configured such that the impact-absorbing device according to the present disclosure is provided between a concrete base 600 and an indoor floor layer 400, which is arranged above the concrete base 600 at a predetermined gap. A gap is formed between the concrete base 600 and the indoor floor layer 400, and the body 100 of the impact-absorbing device is provided in the gap at a predetermined interval.
The indoor floor layer 400 may include a panel 420. The panel 420 is formed of plastic or wood, and is formed with a thickness sufficient to support a load. When the indoor floor layer 400 is formed by pouring cement mortar, the panel 420 serves to allow the pouring work.
An insulation layer 200 is formed below the indoor floor layer 400. The insulation layer 200 is provided with a constant thickness, and when the panel 420 is provided to the indoor floor layer 400, the insulation layer 200 is provided below the panel 420.
In the above configuration, an upper portion of the body 100 of the impact-absorbing device according to the present disclosure penetrates through the insulation layer 200. Preferably, the body 100 is formed such that only the upper cylinder 120 penetrates through the insulation layer 200. Accordingly, even when a height from the concrete base 600 to the indoor floor layer 400 is formed equal to the height of the body 100, the insulation layer 200 may be formed, so that even when the insulation layer 200 is formed, the height of the indoor floor layer 400 is not changed. In this configuration, the upper end of the body 100 is in contact with the indoor floor layer 400, and as a result, an impact applied from the indoor floor layer 400 is directly transmitted to the body 100.
Herein, the fastening protrusion 102 provided on the upper end of the body 100 is formed with a constant height from the center portion of the body 100, and is fitted into the indoor floor layer 400. When the panel 420 is provided at the indoor floor layer 400, the fastening protrusion 102 is fitted into the panel 420. The fastening protrusion 102 may have a screw structure to be fitted in a screw-coupling manner. Therefore, a position of the body 100 is securely fixed.
As described above, in the structure having the insulation layer 200, the support plate 122 provided on the outer circumference of the upper cylinder 120 supports a lower end of the insulation layer 200 to contribute so that the insulation layer 200 remains stable.
Meanwhile, an anti-vibration rubber 500 may be provided under a lower end of the body 100. The anti-vibration rubber 500 is formed in a plate shape and with a constant thickness. The anti-vibration rubber 500 serves to prevent vibrations or noise generated by operation of the body 100 from being transmitted to the concrete base 600. The anti-vibration rubber 500 may be formed of rubber as well as other materials that may have the same function as rubber.
As described above, in the structure for blocking noise between floors according to the present disclosure, an impact generated in the indoor circumstances is transmitted to the body 100 through the indoor floor layer 400, and thus the body 100 slightly contracts and then extends to an initial position thereof as described with reference to FIG. 4 , so that the impact is softly absorbed. Therefore, noise between floors can be efficiently mitigated.

DESCRIPTION FOR REFERENCE NUMERALS

- 100: body, 102: fastening protrusion,
- 104: through hole, 120: upper cylinder,
- 122: support plate, 140: lower container,
- 160: elastic support, 180: transmitting body,
- 182: groove, 200: insulation layer,
- 400: indoor floor layer, 420: panel,
- 500: anti-vibration rubber, 600: concrete base.

Claims

1. An impact-absorbing device comprising:

a body (100) comprising an upper cylinder (120), of which an inside space is empty and that has an opening opened downward, and a lower container (140), of which an upper end is inserted into the upper cylinder (120), so that the length thereof is extendable and contractible; and

an elastic support (160) formed in a transverse direction inside at least any one of the upper cylinder (120) and the lower container (140) and a transmitting body (180) configured to be supported by the elastic support (160) and transmit an impact applied to the upper cylinder (120) to the elastic support (160),

wherein when an impact is applied to the upper cylinder (120), the length of the body (100) is reduced, and thus the elastic support (160) is elastically deformed by the transmitting body (180) to absorb the impact.

2. The impact-absorbing device of claim 1, wherein the elastic support (160) is made of a steel wire.

3. The impact-absorbing device of claim 1, wherein the transmitting body (180) has a cylindrical or spherical shape, and having has a groove (182) formed on a portion in contact with the steel wire so that the steel wire is fitted into the groove (182).

4. The impact-absorbing device of claim 1, wherein at least any one of the upper cylinder (120) and the lower container (140) has a through hole (104) so that air flows through the through hole (104) during an extending and contracting process.

5. The impact-absorbing device of claim 1, wherein a sound-absorbing material is filled inside the body (100).

6. A structure for blocking noise between floors, the structure comprising:

a concrete base (600) and an indoor floor layer (400) provided above the concrete base (600) with a predetermined gap; and

an impact-absorbing device of according to claim 1 provided between the concrete base (600) and the indoor floor layer (400),

wherein an impact generated from the indoor floor layer (400) is absorbed by the impact-absorbing device to block noise between floors.

7. The structure of claim 6, wherein a fastening protrusion (102) is provided on an upper end of the body (100) of the impact-absorbing device, and

a position of the body is fixed as the fastening protrusion (102) is fitted into the indoor floor layer (400).

8. The structure of claim 6, further comprising:

an insulation layer (200) provided below the indoor floor layer (400),

wherein the upper cylinder (120) of the body (100) of the impact-absorbing device penetrates through the insulation layer (200).

9. The structure of claim 8, wherein a support plate (122) is provided on an outer circumference of the upper cylinder (120), and the support plate (122) is configured to support the insulation layer (200).

10. The structure of claim 6, wherein an anti-vibration rubber (500) is provided on a lower end of the body (100) of the impact-absorbing device.