KR-20260065970-A - A preventive material for the floor impact sound

Abstract

The present invention relates to an inter-floor noise prevention material that increases the durability stress of the prevention material to prevent water from the cement mortar poured over the prevention material from being absorbed into the sound-absorbing plate, thereby fundamentally preventing the deterioration of the sound-absorbing plate's sound-absorbing function and the generation of odors caused by moisture penetration. The present invention comprises a finishing plate (1) installed on the final upper layer of a sound-absorbing material, a sound-absorbing plate (2) installed below the finishing plate, and a rubber foot (3) that transmits the load applied to the finishing plate (1) to the slab surface while simultaneously absorbing and canceling out impact sound and vibration. In this configuration, the finishing plate (1) is formed with an upper plate (110) and a lower plate (120), and a supporting plate (130) having a supporting column (132) is installed between the upper plate (110) and the lower plate (120). The outer surface of the supporting column (132) formed on the supporting plate (130) is formed as an inclined surface (131) so that the supporting column (132) is configured in a conical shape. Additionally, a waterproof hole (200) having a finishing plate coupling groove (201) is installed between adjacent finishing plates (1) and finishing plates (1), thereby increasing the stress of the finishing material so that even if a load is applied from above, the finishing plate It has the effect of preventing the product from bending easily, thereby improving its durability, and fundamentally blocking the absorption of water from the cement mortar poured over the sound-absorbing material into the sound-absorbing plate, thus preventing a decrease in sound absorption function and solving the problem of bad odors caused by moisture penetration.

Inventors

• 고광칠

Assignees

• 주식회사 유엔아이
• 고광산업 주식회사

Dates

Publication Date

20260512

Application Date

20241102

Claims (3)

1. An interlayer noise prevention material comprising a finishing plate (1) installed on the final upper layer of the sound-absorbing material, a sound-absorbing plate (2) installed on the lower part of the finishing plate, and a rubber foot (3) that transmits the load applied to the finishing plate (1) to the slab surface while absorbing and canceling out impact sound and vibration, wherein the finishing plate (1) is formed into an upper plate (110) and a lower plate (120), and a support plate (130) having a support column (132) is installed between the upper plate (110) and the lower plate (120).
2. A floor noise prevention material according to claim 1, characterized in that the outer surface of a support column (132) formed on a support plate (130) is formed as an inclined surface (131), so that the support column (132) is configured in a conical shape.
3. A floor noise prevention material characterized by being configured such that, in claim 1 or 2, a waterproof hole (200) having a finishing plate coupling groove (201) is installed between adjacent finishing plates (1) and finishing plates (1).

Description

A preventive material for the floor impact sound The present invention relates to a soundproofing material for inter-floor noise, and more specifically, to a soundproofing material for inter-floor noise that prevents the deterioration of the sound-absorbing function of the sound-absorbing plate and the generation of odors caused by moisture penetration by increasing the durability stress of the soundproofing material to prevent water from the cement mortar poured over the soundproofing material from being absorbed into the sound-absorbing plate. As multi-unit housing such as apartments and multi-family homes becomes the norm in Korea, the issue of noise between floors is gaining significant prominence. Inter-floor noise is floor impact sound that occurs when sound and impact generated on the upper floor of a multi-unit dwelling are transmitted to the lower floor. Floor impact sound includes light impact sound, which generates relatively high-frequency sounds caused by falling small objects or moving furniture, and heavy impact sound, which generates low-frequency sounds caused by children jumping or impacting relatively heavy objects. To fundamentally resolve such inter-floor noise, one approach is to strengthen structural rigidity by increasing floor thickness from the design and construction stages; however, this not only increases the building's self-weight but also raises floor heights and significantly increases construction costs. Recently, lightweight floor structures are being constructed to reduce construction costs, leading to a serious problem with impact noise, which is even more severe in multi-unit dwellings such as apartments. Even in this lightweight floor structure, expanded polystyrene is laid and the floor is constructed on top of it to reduce floor impact to some extent, but simply laying expanded polystyrene alone has almost no sound insulation or impact reduction effect. In particular, recently, conflicts between neighbors caused by inter-floor noise have emerged as a social issue, and as an alternative, a double floor structure with vibration damping effects against inter-floor noise and impact is recommended. However, in the case of a double floor structure, the floor height becomes excessively higher than a standard floor structure, which reduces the spatial area. Additionally, since construction is complex and the unit cost of materials is high, the construction cost is excessively high, so it is not suitable for general construction in general buildings except for specific buildings. Therefore, some construction sites adopt a method of laying separate sound-absorbing material beneath the vibration damping pad to reduce floor impact; however, since the sound-absorbing material is compressed by the weight of the structure itself that is layered on top of the damping pad, there is little difference from existing performance, and problems particularly arise with resilience. Under the current Building Act, residual strain is stipulated as a value at which the restoring force exceeds a certain threshold to account for cases where floor settlement occurs. However, if sound-absorbing material is simply laminated onto the vibration-damping pad as described above, the residual strain decreases as the material is compressed, leading to a failure to pass test results. Korean Patent Registration No. 10-1518026 has been provided in consideration of these issues. The aforementioned prior art invention is a structure in which a sound-absorbing plate, a thermal insulation plate, a heating plate, and a plurality of shafts formed at the bottom of the plate sequentially penetrate a plurality of holes formed in the sound-absorbing plate, the thermal insulation plate, and the heating plate, and finally are inserted into a coupling hole formed on the upper surface of a base, thereby completing a sound-absorbing material assembly. The sound-absorbing material structure based on such prior art has the disadvantage that assembly is very difficult and its durability, particularly the shaft, is weak, causing it to be easily damaged by workers stepping on it during on-site construction. In addition, this sound-absorbing structure has a problem in that water from the cement mortar poured onto the upper surface of the sound-absorbing material during construction is too easily absorbed into the lower sound-absorbing plate through the gaps between the sound-absorbing materials. Water absorbed by the sound-absorbing panel degrades its sound-absorbing function and becomes a cause of unpleasant odors resulting from moisture penetration. To solve these problems, the applicant has previously filed a floor construction method for preventing inter-floor noise, which fundamentally blocks the absorption of water from the cement mortar poured over the sound-absorbing material into the sound-absorbing plate during on-site installation, thereby resolving the issues of reduced sound absorption function and odor generation cau