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JP4891848B2 - Sound absorption structure of stairs - Google Patents

Sound absorption structure of stairs Download PDF

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Publication number
JP4891848B2
JP4891848B2 JP2007177032A JP2007177032A JP4891848B2 JP 4891848 B2 JP4891848 B2 JP 4891848B2 JP 2007177032 A JP2007177032 A JP 2007177032A JP 2007177032 A JP2007177032 A JP 2007177032A JP 4891848 B2 JP4891848 B2 JP 4891848B2
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Japan
Prior art keywords
sound absorbing
absorbing plate
perforated
plate
kicking
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JP2007177032A
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JP2009013677A (en
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歩 牛山
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Daiwa House Industry Co Ltd
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Daiwa House Industry Co Ltd
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Description

本発明は、階段の吸音構造に関する。   The present invention relates to a sound absorbing structure for stairs.

階段の吸音構造として、各蹴込み材板を、孔あき吸音板で構成し、該蹴込み材板の背後に空気層を形成する無孔板を設けたものは、従来より知られている。
特開２００３−２９３４７４号公報 As a sound-absorbing structure of stairs, a structure in which each kicking plate is constituted by a perforated sound-absorbing plate and a non-hole plate that forms an air layer behind the kicking plate is known.
JP 2003-293474 A

しかしながら、上記のような構造では、蹴込み材板として孔あき吸音板を用いているため、孔あき吸音板が階段室に露出してしまい、体裁を悪くしてしまうことがある。   However, in the structure as described above, since the perforated sound absorbing plate is used as the kicking material plate, the perforated sound absorbing plate is exposed to the staircase and the appearance may be deteriorated.

本発明は、上記のような問題点に鑑み、体裁を悪くすることなく、吸音効果を発揮することができる階段の吸音構造を提供することを課題とする。   In view of the problems as described above, it is an object of the present invention to provide a sound absorbing structure for stairs that can exhibit a sound absorbing effect without deteriorating appearance.

上記の課題は、各蹴込み材が、その背面側を隠蔽するが、背面側への音の透過は許容する性質の膜材からなり、該蹴込み材の背面側に孔あき吸音板が設けられると共に、該孔あき吸音板の背後に空気層を形成する無孔板が設けられていることを特徴とする階段の吸音構造によって解決される。   The above problem is that each kicking material is made of a film material that conceals the back side of the kicking material but allows sound to pass through to the backside, and a perforated sound absorbing plate is provided on the back side of the kicking material. In addition, the sound absorbing structure of the staircase is characterized in that a non-porous plate that forms an air layer is provided behind the perforated sound absorbing plate.

この構造では、各蹴込み材が、背面側への音の透過を許容する性質の膜材からなっているので、孔あき吸音板と空気層を蹴込み材の背面側に設けたものでありながら、孔あき吸音板と空気層による吸音効果を発揮することができる。   In this structure, each kicking material is made of a film material that allows sound to be transmitted to the back side, so a perforated sound absorbing plate and an air layer are provided on the back side of the kicking material. However, the sound absorbing effect by the perforated sound absorbing plate and the air layer can be exhibited.

しかも、各蹴込み材は、その背面側を隠蔽する性質を備えているので、蹴込み材を通じて孔あき吸音板が見えてしまうことがなく、階段の体裁を孔あき吸音板によって悪くすることがない。   In addition, since each kicking material has the property of concealing the back side, the perforated sound absorbing plate is not seen through the kicking material, and the appearance of the staircase may be deteriorated by the perforated sound absorbing plate. Absent.

上記の構造において、蹴込み材が、布製の膜材からなる場合は、階段を上っていくときに爪先が蹴込み材に当たっても痛くなく、ヒトに優しい階段を実現することができる。   In the above structure, when the kicking material is made of a cloth film material, even if the toe hits the kicking material when going up the stairs, a human-friendly stairs can be realized.

また、前記孔あき吸音板が、複数のスリット孔を並列させたスリット型孔あき吸音板からなり、各スリット孔が階段の幅方向に向けられている場合は、歩行音に対する吸音効果を高いものにすることができる。   The perforated sound absorbing plate comprises a slit type perforated sound absorbing plate in which a plurality of slit holes are arranged in parallel, and each slit hole is oriented in the width direction of the stairs, so that the sound absorbing effect on walking sound is high. Can be.

本発明の階段の吸音構造は、以上のとおりのものであるから、体裁を悪くすることなく、吸音効果を発揮することができる。   Since the sound absorbing structure of the staircase of the present invention is as described above, the sound absorbing effect can be exhibited without deteriorating the appearance.

次に、本発明の実施最良形態を図面に基づいて説明する。   Next, the best mode for carrying out the present invention will be described with reference to the drawings.

図１及び図２に示す実施形態の階段構造において、１…は段板、２…は蹴込み材であり、各蹴込み材２…の背面側には、孔あき吸音板３が、階段の傾斜方向に向けられて設置されていると共に、該孔あき吸音板３の背後に空気層５を形成する無孔板４が同じく階段の傾斜方向に向けられて設けられている。   In the staircase structure of the embodiment shown in FIGS. 1 and 2, 1 is a step plate, 2 is a kick material, and a perforated sound absorbing plate 3 is provided on the back side of each kick material 2. A non-perforated plate 4 that forms an air layer 5 behind the perforated sound absorbing plate 3 is also provided so as to face the inclined direction of the stairs.

孔あき吸音板３は、複数のスリット孔３ａ…を並列させたスリット型孔あき吸音板からなっており、各スリット孔３ａ…が階段の幅方向に向けられて備えられている。   The perforated sound absorbing plate 3 is composed of a slit type perforated sound absorbing plate in which a plurality of slit holes 3a are arranged in parallel, and each slit hole 3a is directed in the width direction of the stairs.

そして、各蹴込み材２は、その背面側を隠蔽するが、背面側への音の透過は許容する性質を備えた布製の膜材で構成されている。   Each kicking material 2 is made of a cloth film material having a property of concealing the back surface side but allowing sound to be transmitted to the back surface side.

上記の階段の吸音構造では、各蹴込み材２…が、背面側への音の透過を許容する性質を備えているので、図１（ロ）に示すように、歩行音等は、蹴込み材２…を透過するが、蹴込み材２…の背後には、孔あき吸音板３と、その背後に空気層５が備えられているので、孔あき吸音板３と空気層５による吸音作用で、歩行音等が、階段室や、それと隣接する玄関ホールや廊下で響くのを効果的に防ぐことができる。   In the sound absorbing structure of the above staircase, each kicking material 2 has a property that allows sound to be transmitted to the back side. Therefore, as shown in FIG. Although it penetrates the material 2..., The perforated sound absorbing plate 3 and the air layer 5 are provided behind the kick material 2. Therefore, the sound absorbing action by the perforated sound absorbing plate 3 and the air layer 5 is provided. Thus, it is possible to effectively prevent walking sounds and the like from reverberating in the staircase and the entrance hall and hallway adjacent to it.

特に、本実施形態では、吸音板として、スリット型孔あき吸音板３を採用しているので、吸音板３の厚さ寸法ａ、各スリット孔３ａの幅寸法ｂ、スリット孔３ａ…の間の間隔寸法ｃ、各スリット孔３ａの長さ寸法ｄ、空気層５の厚さ寸法ｅを種々設定することによって、環境に応じて、吸音しようとする周波数の音を効果的に吸音することができる。例えば、ａを８ｍｍ、ｂを５ｍｍ、ｃを５０ｍｍ、ｄを５００ｍｍ、ｅを３０ｍｍに設定することにより、共振周波数を６０７Ｈｚ程度となしえて、特定の環境での歩行音等を効果的に吸音することができるようになる。   In particular, in the present embodiment, the slit-type perforated sound absorbing plate 3 is employed as the sound absorbing plate, so that the thickness dimension a of the sound absorbing plate 3, the width dimension b of each slit hole 3a, and the slit holes 3a. By setting the interval dimension c, the length dimension d of each slit hole 3a, and the thickness dimension e of the air layer 5, it is possible to effectively absorb sound having a frequency to be absorbed depending on the environment. . For example, by setting a to 8 mm, b to 5 mm, c to 50 mm, d to 500 mm, and e to 30 mm, the resonance frequency can be set to about 607 Hz, and the walking sound in a specific environment can be effectively absorbed. Will be able to.

しかも、各蹴込み材２…は、その背面側を隠蔽する性質を備えた布製の膜材で構成されているので、蹴込み材２…を通じて孔あき吸音板３が見えず、階段の体裁が孔あき吸音板３によって悪くなることもなく、また、階段を上っていくときに爪先が蹴込み材２に当たっても痛くなくてヒトにも優しい。   Moreover, since each kicking material 2 is made of a cloth film material having a property of concealing the back side thereof, the perforated sound absorbing plate 3 cannot be seen through the kicking material 2. It does not get worse by the perforated sound absorbing plate 3, and even if the toe hits the kicking material 2 when going up the stairs, it does not hurt and is friendly to humans.

以上に、本発明の実施形態を示したが、本発明はこれに限られるものではなく、発明思想を逸脱しない範囲で各種の変更が可能である。例えば、上記の実施形態では、孔あき吸音板として、スリット型の孔あき吸音板３を用いた場合を示したが、各種形態の孔を備えた孔あき吸音板が用いられてもよい。   Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the invention. For example, in the above embodiment, the slit-type perforated sound absorbing plate 3 is used as the perforated sound absorbing plate, but a perforated sound absorbing plate having holes of various forms may be used.

階段の吸音構造の実施形態を示すもので、図（イ）は断面側面図、図（ロ）は吸音の作用を示す断面側面図である。The embodiment of the sound absorption structure of the staircase is shown, in which FIG. (A) is a sectional side view and FIG. 孔あき吸音板と無孔板とを階段の背面側から分離させた状態の斜視図である。It is a perspective view in the state where a perforated sound absorbing plate and a non-perforated plate were separated from the back side of the stairs.

符号の説明Explanation of symbols

２…蹴込み材
３…スリット型孔あき吸音板（孔あき吸音板）
３ａ…スリット孔
４…無孔板
５…空気層 2 ... Kicking material 3 ... Slit type perforated sound absorbing plate (perforated sound absorbing plate)
3a ... slit hole 4 ... non-perforated plate 5 ... air layer

Claims (3)

各蹴込み材が、その背面側を隠蔽するが、背面側への音の透過は許容する性質の膜材からなり、該蹴込み材の背面側に孔あき吸音板が設けられると共に、該孔あき吸音板の背後に空気層を形成する無孔板が設けられていることを特徴とする階段の吸音構造。   Each kicking material is made of a film material that conceals the back side of the kicking material but allows sound to be transmitted to the backside. A perforated sound absorbing plate is provided on the back side of the kicking material, and the holes A sound absorbing structure for a staircase, characterized in that a non-porous plate forming an air layer is provided behind the perforated sound absorbing plate. 前記蹴込み材が、布製の膜材からなる請求項１に記載の階段の吸音構造。   The staircase sound-absorbing structure according to claim 1, wherein the kick material is made of a cloth film material. 前記孔あき吸音板が、複数のスリット孔を並列させたスリット型孔あき吸音板からなり、各スリット孔が階段の幅方向に向けられている請求項１又は２に記載の階段の吸音構造。   The sound absorbing structure for a staircase according to claim 1 or 2, wherein the perforated sound absorbing plate is a slit-type perforated sound absorbing plate in which a plurality of slit holes are arranged in parallel, and each slit hole is directed in the width direction of the staircase.
JP2007177032A 2007-07-05 2007-07-05 Sound absorption structure of stairs Expired - Fee Related JP4891848B2 (en)

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Publication number Priority date Publication date Assignee Title
JP5225638B2 (en) * 2007-09-06 2013-07-03 トヨタホーム株式会社 SOUND ABSORBING STRUCTURE FOR BUILDING, BUILDING WITH THE SAME, AND METHOD FOR PRODUCING SOUND ABSORBING STRUCTURE
CN112185327A (en) * 2020-09-16 2021-01-05 西安交通大学 Micro-seam low-frequency sound absorption unit and nested broadband sound absorption structure with same

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JP2003293474A (en) * 2002-04-01 2003-10-15 Sekisui Chem Co Ltd Indoor sound absorbing structure and building
JP2007162253A (en) * 2005-12-12 2007-06-28 Nakanishi Metal Works Co Ltd Reverberant sound reducing device

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