WO1984003982A1 - Sound-adjusting plate - Google Patents

Sound-adjusting plate Download PDF

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Publication number
WO1984003982A1
WO1984003982A1 PCT/JP1984/000153 JP8400153W WO8403982A1 WO 1984003982 A1 WO1984003982 A1 WO 1984003982A1 JP 8400153 W JP8400153 W JP 8400153W WO 8403982 A1 WO8403982 A1 WO 8403982A1
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WO
WIPO (PCT)
Prior art keywords
sound
sheet
speaker unit
adjustment plate
plate
Prior art date
Application number
PCT/JP1984/000153
Other languages
French (fr)
Japanese (ja)
Inventor
Toshio Mayumi
Original Assignee
Shin Nippon Core Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP4615883U external-priority patent/JPS59156300U/en
Priority claimed from JP3223684U external-priority patent/JPS60143496U/en
Application filed by Shin Nippon Core Co Ltd filed Critical Shin Nippon Core Co Ltd
Publication of WO1984003982A1 publication Critical patent/WO1984003982A1/en

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects

Definitions

  • the present invention relates to a sound adjusting plate made of a hollow laminated structure, and does it come out from the lower part or the rear part of the speaker unit? !
  • the present invention relates to an acoustic adjustment plate for reducing an adverse effect of a sound.
  • a support base such as a lenger, concrete board, or ⁇ -book in order to absorb the vibration energy transmitted from the sound source to the floor.
  • the speaker unit is placed on it and used.
  • the greater the quality of this support the greater the attenuation of resonance phenomena.
  • the size and mass of the support are limited, and the support is not always satisfactory.
  • sound waves emitted from the rear of the speaker unit are reflected by the rear wall of the listening room, interfere with the sound waves from the front of the speaker unit, and generate sound. It causes. For this reason, the installation board, plywood, etc. may be placed at the rear of the speaker unit, or the steel board or honeycomb may be used.
  • Panels with a core as the core and sandwiched by perforated plates on the front and back are placed on the rear side of the speaker unit and on the side, etc. Sound waves emitted from other than the front of the box are absorbed as much as possible to reduce the adverse effects of the sound. However, such a panel can only absorb sound waves that are polarized in either the middle or low frequency range, so that an appropriate sound absorbing effect can be expected. Flaws and transparent sound
  • An object of the present invention is to provide a light-weight sound-adjusting plate which eliminates the drawbacks of the conventional speed support plate or sound-absorbing plate as described above, and is lightweight, has excellent sound-absorbing characteristics, and is inexpensive. The purpose is.
  • a roll made of paper is laminated between a raised or planted porous force sheet and an air-impermeable shield when a lead thin plate is used, and an acoustic adjustment plate is formed. It was done. As a result, while coming out of the speakers J.2, J., and the boat, it absorbs the low-frequency sound waves and dampens the sound energy transmitted from the bottom of the unit to the floor (Pi The sound characteristics of the stereo listening room can be improved.
  • the size of the roll core can be selected as appropriate, but as a result of the experiment, the cellulos is about 14 m, the thickness is about 20 to 90 steel, and preferably 50 to 90 jobs. Is adopted.
  • the porous cover sheet is a For example, a brushing cloth, a flocking cloth or a felt having a value of air permeability of 5 15 cc / CJB'sec is suitable for a Frazier type testing machine.
  • the impermeable sheet may be made of a material that does not have a resonance frequency in a frequency range where sound can be lashed, for example, a lead plate or iron having a thickness of 0.3 m or more.
  • a thermoplastic plastic sheet containing iron powder is suitable.
  • the porous cover which is a component of the acoustic adjustment plate, has a relatively high absorption rate for sounds in the high frequency range, and the roll core cell has a relatively low absorption rate for sounds in the low frequency range.
  • each of the cells has an average high absorption rate over the entire sound range as a whole. .
  • the roll core and the impermeable sheet work as a vibration damping material and prevent sound (especially low sound) from propagating to the wall or floor.
  • the impermeable sheet has the effect of sound reflection and the effect of the irregular reflection of the sound of the power part.
  • this acoustic adjustment plate can obtain excellent effects in any of clarity of sound, sound image localization, and lingering sound, and solves the above-mentioned conventional problems. If the air permeability of the cover sheet is low, the sound will be muffled and a favorable effect cannot be obtained.
  • FIG. 1 is a front view of a preferred acoustic adjustment plate according to the present invention, with a part of the sound adjustment plate being peeled off
  • FIG. 2 is a longitudinal side view of the periphery
  • FIG. 3 is a plan view of a used state
  • Fig. 4 is a cross-sectional view taken along line IV-IV in Fig. 3
  • Fig. 5 is a sound absorption characteristic diagram.
  • FIG. 1 is a front view showing one of the plate-like layers [porous force sheet 12] of the acoustic adjustment plate 10 peeled off
  • FIG. 2 is an enlarged sectional view.
  • the acoustic adjustment plate 10 has a roll core 11 made of paper as a core material, a porous force sheet 12 disposed as one plate-like layer, and an improper use as the other plate-like employment. It is a hollow matrix structure in which permeable sheets 13 are arranged and stacked.
  • the roll core 11 used as the core material is cell size 14 fiber with a thickness of 90 flsa and 50 jobs.
  • the force sheet 12 uses, for example, a ventilated brushed cloth such as a french pile, and closes one opening surface 14 of the door core. As shown in Table 1 below, felt may be used instead of the brushed cloth.
  • the roll core 11 was formed by bonding the roll core elements 16 of each stage to a phase at a portion 20 to be laminated. As a result, cells of different sizes are formed for each element, that is, original cells 18 and gaps 19 are formed. Adhesive is not applied to the part 21 of each element 16 where the adjacent cell 18 contacts.
  • the acoustic adjustment plate is disposed below and behind the speaker unit 26 in the listening room 25. Adjusted sound ⁇ 10
  • the thickness of the core is 90 Nana, and the sound hairpin adjustment plate 30 arranged behind and on the side is around 50 Sir.
  • the acoustic adjustment plates 10 and 30 shown in the above embodiments exhibit an average sound absorbing effect over the entire sound range. That is, a large volume cell 18 exhibits a relatively high sound absorption rate for low-range sounds, and a small volume gap 19 exhibits a relatively high sound absorption rate for mid-range sounds.
  • the power sheet 12 of the breathable brushed cloth shows a relatively high sound absorption rate for sounds in the high frequency range. Therefore, the above three characteristics are synthesized, and an average sound absorption coefficient can be obtained over the entire sound range.
  • Fig. 5 shows the sound absorption coefficient of the sound conditioner (sample area 9.4) used as the speaker support, and the residual room method determined by JISA 1409-19797. It shows the results of the measurements.
  • the roll Your 11 works as a vibration damping material, it prevents the vibration of the sound (especially bass) from propagating to the floor or transmitting to the floor. Has a vibration damping effect.
  • one open surface of the roll core is closed with an impermeable sheet 13 made of a lead plate, it has an excellent reflection effect.
  • the roll core is covered with a breathable blanket on the other open side of the roll core, diffused reflection of sound can be expected, and an excellent sound diffusion effect can be obtained. .
  • one side is closed with a lead plate.
  • the weight is 1003 and the thickness is 3.
  • this acoustic adjustment plate is more satisfactory in terms of clarity, diffusion, and lingering as compared with the comparative example.
  • the roll core thickness is between 75 and 90, excellent results can be obtained with any of the above elements.
  • One of the factors for obtaining sound with good sound image localization and depth and spread is that the outside of each cell of the roll core is the parts 20 and 20 in Fig. 1.
  • the cells 18 and the gaps 19 are connected to each other only in the pressure-bonded state at the part 21, although they are airtightly bonded at It seems that there is something.
  • the roll core is passed through one of the opening surfaces of the roll core.
  • the acoustic adjustment plate was constructed by attaching a temper cloth and closing the other opening with a non-permeable sheet, sound was absorbed from the low-frequency range to the high-frequency range on average. Since it is reflected moderately, a clear sound can be obtained. Also, since the sound absorbing material has a sound absorbing function, it is possible to prevent the sound of the speaker from vibrating the wall floor, etc. (damping effect). ⁇ In order to improve the speaker's characteristics, it is sufficient to use this acoustic adjustment plate as a speaker unit support, but it is sufficient to combine it with the back plate. By doing so, it is possible to obtain even more effects. Also, if it is used as a wall material, a soundproof wall with sound reflection effect can be obtained, which is suitable for a musical instrument practice room.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Building Environments (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

A sound-adjusting plate constituted by a member with a hollow laminated structure. This plate can be employed as a support for a speaker unit, or it can be provided behind a speaker unit to absorb or dampen the sound energy coming from the speaker unit, to reduce any adverse effects due to the sound. For this purpose, paper roll cores (11) are used as a core material, and the surface of the openings (14) thereof on one side is covered with a porous cover sheet (12) such as a napped cloth, a flocked cloth, or felt, while the surface (15) of the other openings thereof is covered with a sheet (13) which is impermeable to air, such as lead sheeting or a plastic sheet containing iron powder. Sound within the treble region is absorbed by the porous cover sheet (12), while sounds in the middle and bass regions are absorbed by cells (18) and gaps (19) formed by the roll cores (11). Both the roll cores (11) and the impermeable sheet (13) act as vibration dampers to prevent the propagation of vibrations due to low-pitched sounds to the walls or floor.

Description

明 音禁調整板  Akira soundproof adjustment plate
技術分野  Technical field
こ の発明 は 、 中空積層構造体 に よ る音饗調整板 に 関す る も ので 、 ス ピ ー カ ー ュ ニ ッ 卜 の 下部 ま た は後部か ら 出 る ？！の悪影響を減殺 す る よ う に し た 音響調整板に 関 する 。  The present invention relates to a sound adjusting plate made of a hollow laminated structure, and does it come out from the lower part or the rear part of the speaker unit? ! The present invention relates to an acoustic adjustment plate for reducing an adverse effect of a sound.
背景技術  Background art
リ ス リ ングル ー ム に おい て は 、 音源か ら床に 伝わる振動 ェネル ギ ー を吸収 す る た め 、 レ ンガ 、 コ ン ク リ ー 卜 ブ π ッ ク な ど の支持 台を用 い 、 そ の上 に ス ピ ー カ ー ユ ニ ッ ト を載置 し て 使用 さ れる 。 こ の 支持台 は質 鼂が大な る ほ ど 、 共振現象の減殺カ も大 と なる が 、 使用上大き さ 、 質量に 限界があ っ て 必ず し も 満足を得て い な い 。 ま た ス ピ ー カ ー ュ ニ ッ 卜 後部か ら 出 る 音波 は 、 リ ス ニ ングル ー ム の後壁で反射 し 、 ス ピ ー カ ー前面か ら の音波 と干渉 し て維音発生 の原因 と な る 。 こ の た め イ ン シ ュ レ ー シ ョ ン ボ ー ド 、 合板な ど を ス ピ ー カ ー ユ ニ ッ ト 後部 に配置 し た り 、 或い は鐵維材 ま た はハ ニ カ ム コ ア を芯 と し 、 表裏の多孔板で サ ン ド イ ッ チ し た構造のパネ ルを 、 ス ピー カ ー ユ ニ ッ ト 後部並び に側部等に 配置 し た り し て 、 ュ ニ ッ. 卜 前面以外か ら 出 た 音波をで き る だけ吸収 し 、 音の悪影響 をな く す こ と が行なわれて いる 。 し か し こ の よ う なパネル に お い て は 、 中 ま た は低周波域の何れか に 偏 っ た 音波を吸収 す る こ と が で き る だけで 、 適正な吸音効果が期待で きず 、 透明感のある音を  In a ring room, use a support base such as a lenger, concrete board, or π-book in order to absorb the vibration energy transmitted from the sound source to the floor. The speaker unit is placed on it and used. The greater the quality of this support, the greater the attenuation of resonance phenomena. However, the size and mass of the support are limited, and the support is not always satisfactory. In addition, sound waves emitted from the rear of the speaker unit are reflected by the rear wall of the listening room, interfere with the sound waves from the front of the speaker unit, and generate sound. It causes. For this reason, the installation board, plywood, etc. may be placed at the rear of the speaker unit, or the steel board or honeycomb may be used. Panels with a core as the core and sandwiched by perforated plates on the front and back are placed on the rear side of the speaker unit and on the side, etc. Sound waves emitted from other than the front of the box are absorbed as much as possible to reduce the adverse effects of the sound. However, such a panel can only absorb sound waves that are polarized in either the middle or low frequency range, so that an appropriate sound absorbing effect can be expected. Flaws and transparent sound
O PI 得る こ とができない。 一方ハニカ ム コ アを利用するあのの中に は 表裏の板状層闥に少な く とも 3 種の異なるセルサイズを有する八 二カ ム構成雇をサン ドィ ツ チ状に積 した中空構造体の吸音パネ ル （ 米国特許第 4 ， 2 9 1 , 0 8 0号 ） に よ り 中、 低周波域の音 波を吸収する よ う に し た ¾のが知 ら れている 。 この のは、 ジ ェ ッ 卜 ェンジンのテス 卜 においてェンジンダク ト の周囲に配置し 、 l¾ ¾n、 高速の音エネルギ一を吸収 し て環境への騒音を防止する こ とを目 的と し、 機械的強度、 耐熱性の何れ ¾髙いちのが要求され ている。 こ よ う な構造のちのを り ス二ングルー ムの吸音部材に用 いても 、 微妙な音響調整を行なう こ と はできない。 O PI I can't get it. On the other hand, there is a hollow structure in which a honeycomb core with at least three types of cell sizes with at least three different cell sizes is stacked on a front and back plate-shaped girder using a honeycomb core. It is known that the sound absorbing panel (US Pat. No. 4,291,080) is designed to absorb sound waves in the middle and low frequency range. The purpose of this is to place it around the engine duct in the jet engine test, to absorb high-speed sound energy and to prevent noise to the environment, Both strength and heat resistance are required. Even if such a structure is used for a sound absorbing member of a stainless steel room, it is not possible to perform fine sound adjustment.
本発明は、 上述 し た ごとき従来のス ピ一 力一支持台或は吸音板 の欠点を除去 し 、 軽量で吸音特性にすぐれ、 しかち低価な音饔 ΙΪ 整板を提供するこ とを 目 的 と している 。  An object of the present invention is to provide a light-weight sound-adjusting plate which eliminates the drawbacks of the conventional speed support plate or sound-absorbing plate as described above, and is lightweight, has excellent sound-absorbing characteristics, and is inexpensive. The purpose is.
発明の開 Invention opening
本発明 は、 起-毛ま た は植毛した多孔性力 パーシー 卜 と鉛薄板の し とき空気不透過性シ一 ドとの間 にペ ー パ ー製ロ ールコ アを積層 して音響調整板と したものである 。 このこ とによ っ てス ピー カ ー J.二 、J、 卜 から出る中、 低周波域の音波を吸収 し 、 ュニ ッ 卜下部か ら床へ伝わる音エネルギ一を制振 （ パイ アレーシ ヨ ンダン ピング ） する ¾ので、 ステ レオ リ スニ ングルームの音軎特性を改善さ せる 。  According to the present invention, a roll made of paper is laminated between a raised or planted porous force sheet and an air-impermeable shield when a lead thin plate is used, and an acoustic adjustment plate is formed. It was done. As a result, while coming out of the speakers J.2, J., and the boat, it absorbs the low-frequency sound waves and dampens the sound energy transmitted from the bottom of the unit to the floor (Pi The sound characteristics of the stereo listening room can be improved.
ぺ一パ一製ロ ールコ アの大きさ は適宜選択 し得るものであるが、 実験の結果セルロ 1 4 m程度、 厚さ 2 0 〜 9 0 鋼程度、 好ま し く は 5 0 〜 9 0 職 のものが採用される 。 また多孔性カ バ一シー ト は a 例 え ば フ ラ ジ ール型試験機で 、 通気度 5 1 5 c c / CJB' se c の 値を有する起毛布、 植毛布ま た は フ ェル 卜 が適 し ている 。 The size of the roll core can be selected as appropriate, but as a result of the experiment, the cellulos is about 14 m, the thickness is about 20 to 90 steel, and preferably 50 to 90 jobs. Is adopted. The porous cover sheet is a For example, a brushing cloth, a flocking cloth or a felt having a value of air permeability of 5 15 cc / CJB'sec is suitable for a Frazier type testing machine.
更 に 前記不透過性シ ー ト と し て は 、. 音 と し て 睫取 し 得る周 波数領 域で共振周波数を有さ な い材質 、 例え ば 0 . 3 顧以上の鉛板又 は 鉄粉を 混入 し た 塩化 ビ ニ ール板の ご と き 含鉄粉熱可塑性プ ラ ス チ ッ グシ ー ト が適当で あ る 。 音響調整板の構成要素たる多孔性カ バ ー シ 一 卜 は髙音域の 音 に対 し て 、 比較的高い吸収率を示 し 、 ロ ー ル コ ア の セル は低音域の音 に 対 し 、 ま た セル間 の 閻隙 は中音域の 音 に対 し て夫々 比較的高い吸収率 を示 す の で 、 全体 と し て 全音域 に亘 つ て 平均 的に 高い吸収率を示す こ と と な る 。 ま た ロ ー ル コ ア 及び不透過性 シ ー 卜 は制振材 と し て 働き 、 音 （ 特 に 低音 ） に よ る 振動 の壁又 は床へ の伝幡を未然 に 防止す る もので あ る.と共 に 、 不 透過性 シ ー 卜 は 音の 反射作用を 、 ま た 力 パ ー シ ー 卜 の 音の乱反射 作用 を有す る も ので あ る 。  Further, the impermeable sheet may be made of a material that does not have a resonance frequency in a frequency range where sound can be lashed, for example, a lead plate or iron having a thickness of 0.3 m or more. As for the vinyl chloride plate mixed with the powder, a thermoplastic plastic sheet containing iron powder is suitable. The porous cover, which is a component of the acoustic adjustment plate, has a relatively high absorption rate for sounds in the high frequency range, and the roll core cell has a relatively low absorption rate for sounds in the low frequency range. In addition, since the gap between the cells has a relatively high absorption rate for the sound in the midrange, each of the cells has an average high absorption rate over the entire sound range as a whole. . In addition, the roll core and the impermeable sheet work as a vibration damping material and prevent sound (especially low sound) from propagating to the wall or floor. Along with that, the impermeable sheet has the effect of sound reflection and the effect of the irregular reflection of the sound of the power part.
然 し て こ の音響調整板 は音の 明瞭さ 、 音像定位、 余韻の いずれ に お い て も優れ た効果を得る こ と が で き 、 前記従来の 問題点を解 決す る も ので あ る 。 尚 、 カ バ 一 シ ー ト の通気性が小さ い と 音が こ も り 好 ま し い効果を得 る こ と が で き な い 。  However, this acoustic adjustment plate can obtain excellent effects in any of clarity of sound, sound image localization, and lingering sound, and solves the above-mentioned conventional problems. If the air permeability of the cover sheet is low, the sound will be muffled and a favorable effect cannot be obtained.
図面の簡単な説明 BRIEF DESCRIPTION OF THE FIGURES
第 1 図 は 、 こ の発明 に係る好ま し い音響調整板の 1 部を剥離 し て示 し た 正面図 、 第 2 図 は周 じ く 縦断側面図 、 第 3 図 は使用 状態 の平面図 、 第 4 図 は第 3 図 の IV— IV線 に おけ る 断面図、 第 5 図 は 吸音特性線図 で あ る 。  FIG. 1 is a front view of a preferred acoustic adjustment plate according to the present invention, with a part of the sound adjustment plate being peeled off, FIG. 2 is a longitudinal side view of the periphery, FIG. 3 is a plan view of a used state, Fig. 4 is a cross-sectional view taken along line IV-IV in Fig. 3, and Fig. 5 is a sound absorption characteristic diagram.
-; A I 発明を実施する ための最良の形態 -; AI BEST MODE FOR CARRYING OUT THE INVENTION
以下添付図面に従っ て本発明を詳細に説明する。 第 1 図は、 音 響調整板 1 0の一方の板状層 [多孔性力 パ ー シー 卜 1 2 ] を剥離 して 示 した正面図であ り 、 第 2 図は拡大断面図である 。  Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a front view showing one of the plate-like layers [porous force sheet 12] of the acoustic adjustment plate 10 peeled off, and FIG. 2 is an enlarged sectional view.
上記音響調整板 1 0は、 ペ ーパー製ロ ールコ ア 11を芯材 と し 、 一 方の板状層 と して多孔性力パーシー 卜 1 2を配置し、 他方の板状雇 と し て不透過性シ ー 卜 1 3を配置 し て積層 した中空積屬構造体であ る。  The acoustic adjustment plate 10 has a roll core 11 made of paper as a core material, a porous force sheet 12 disposed as one plate-like layer, and an improper use as the other plate-like employment. It is a hollow matrix structure in which permeable sheets 13 are arranged and stacked.
芯材 と しての ロ ールコ ア 1 1はセルサイ ズ 1 4 纖で厚さ 9 0 flsaの もの と 5 0 職のものが使用 さ れる 。 力パ ー シ ー 卜 1 2は例えばフ レ ンチパィ ルのご とき通気性起毛布が用い ら れ口 ールコ ァの一方の 開口面 1 4を閉塞 し ている 。 なお、 後記表 1 に示す よ う に起毛布に 代えフェル 卜 を貼着 しても よい 。 不透過性シー 卜 1 3は、 例えば厚 さ 0 . 3 顧 の鉛板が用 い ら れ、 □ —ル コ アの他方の開口面 1 5を閉 塞 している。 前記ロ ールコ ア 1 1は第 1 図 に示すよ う に各段ロ ール コ アエ レメン 卜 1 6を部分 2 0 の と ころで相 に接着 し て積層 し た あのである。 その結果、 各エ レメ ン ト ごと に大小異なる容積のセ ル、 すなわ ち本来のセル 1 8と間隙 1 9が形成さ れている 。 各エ レメ ン 卜 1 6の隣接するセル 1 8が接触する部分 2 1は接着剤が貼付さ れて いない 。  The roll core 11 used as the core material is cell size 14 fiber with a thickness of 90 flsa and 50 jobs. The force sheet 12 uses, for example, a ventilated brushed cloth such as a french pile, and closes one opening surface 14 of the door core. As shown in Table 1 below, felt may be used instead of the brushed cloth. As the impermeable sheet 13, for example, a lead plate having a thickness of 0.3 is used, and the other opening 15 of the □ -core is closed. As shown in FIG. 1, the roll core 11 was formed by bonding the roll core elements 16 of each stage to a phase at a portion 20 to be laminated. As a result, cells of different sizes are formed for each element, that is, original cells 18 and gaps 19 are formed. Adhesive is not applied to the part 21 of each element 16 where the adjacent cell 18 contacts.
上記音響調整板は、 第 3 図、 第 4 図に示す よう に リ スニングル 一ム 25内のス ピー カ ー ュニ ッ 卜 26の下部お よび背後に配置さ れる すなわちスピ一 力一支持台 と しておかれた音饔調整扳 1 0は、 ロ ー  As shown in FIGS. 3 and 4, the acoustic adjustment plate is disposed below and behind the speaker unit 26 in the listening room 25. Adjusted sound 饔 10
OMPI ル コ ア厚み 9 0 娜の も の で あ り 、 背後お よ び側方に 配置 し た 音簪 調整板 30は周 じ く 5 0 卿のも のであ る 。 OMPI The thickness of the core is 90 Nana, and the sound hairpin adjustment plate 30 arranged behind and on the side is around 50 Sir.
上記実施例 に 示す 音響調整板 1 0、 30は全音域 に □ つ て 平均 的な 吸音効果を奏す る 。 す なわ ち 、 大容積の セル 1 8は低音域の音 に対 し て 比較的高い吸音率を示 し 、 小容積の 隙 1 9は 中 音域の 音 に対 し て 比較的高い吸音率を示 し 、 ま た通気性起毛布の 力 パ ー シ ー 卜 1 2が 髙音域の 音に 対し て 比較的高い吸音率を示 す 。 し た が っ て 前 記三つ の特性が合成さ れ、 全音域 に 亘 つ て 平均的な吸音率が得 ら れ る こ と と な る 。 第 5 図 は ス ピ ー カ ー 支持 台 と し た 音 響 調 整 板 ( 試料面積 9 . 4 ) の吸音率を J I S A 1 4 0 9 - 1 9 7 7 で定 め ら れ た残藿室法 に よ り 測定 し た 結果を示 す も の で あ る 。  The acoustic adjustment plates 10 and 30 shown in the above embodiments exhibit an average sound absorbing effect over the entire sound range. That is, a large volume cell 18 exhibits a relatively high sound absorption rate for low-range sounds, and a small volume gap 19 exhibits a relatively high sound absorption rate for mid-range sounds. In addition, the power sheet 12 of the breathable brushed cloth shows a relatively high sound absorption rate for sounds in the high frequency range. Therefore, the above three characteristics are synthesized, and an average sound absorption coefficient can be obtained over the entire sound range. Fig. 5 shows the sound absorption coefficient of the sound conditioner (sample area 9.4) used as the speaker support, and the residual room method determined by JISA 1409-19797. It shows the results of the measurements.
上記実施例 に示す音響調整板 は 、 ロ ー ルユア 1 1が制振材 と し て 働 く の で 、 音 （ 特 に 低音 ） に よ る 振動 の劈又 は床へ の伝幡を未然 に 防止する 制振効果を有する 。 ま た 、 ロ ー ル コ ア の一方の 開 口面 を鉛板 に よ る 不透過性 シ ー 卜 1 3で 開塞 し て あ る の で優れ た 反射効 果を有す る 。 し かも ロ ール コ ア の他方の開 口 面 に は通気性起毛布 が張設 し て あ る ので 、 音の乱反射が期待で き 、 音の優れ た 拡散効 果を得る こ と がで き る 。  In the acoustic adjustment plate shown in the above embodiment, since the roll Your 11 works as a vibration damping material, it prevents the vibration of the sound (especially bass) from propagating to the floor or transmitting to the floor. Has a vibration damping effect. In addition, since one open surface of the roll core is closed with an impermeable sheet 13 made of a lead plate, it has an excellent reflection effect. Furthermore, since the roll core is covered with a breathable blanket on the other open side of the roll core, diffused reflection of sound can be expected, and an excellent sound diffusion effect can be obtained. .
次 に 音響調整板の効果の比較結果を示す 。  Next, the results of comparing the effects of the acoustic adjustment plates are shown.
O PI 一 1 ス ピーカ ー ュニ ッ 卜の背後に縦設 し て使用 O PI (1) Used vertically installed behind the speaker unit
Figure imgf000008_0001
Figure imgf000008_0001
， -：: '二'- -、 、 * ( 注 ） ,-:: 'two'--,, * ( note )
① 本発明 の音響調整板 '  ① Sound adjustment plate of the present invention ''
③ ロ ー ル コ ァ に セル ロ ー ス フ ア イ パ ー を充填 し た も の ③ Roll core filled with cellulose fiber
①〜③は いずれ も一側 を鉛板で閉塞 し て あ る 。 In all of ① to ③, one side is closed with a lead plate.
④⑤ は単板  ④⑤ is a veneer
⑥ 重さ 1 0 0 3 、 厚さ ひ . 3 廳  1 The weight is 1003 and the thickness is 3.
⑦ 重 さ 2 1 0 9 ノ m 、 厚 さ 讓  2 Weight 2 109 m, thickness
こ の結果 よ り 、 こ の音響調整板 は 明瞭さ · 拡散 · 余韻の いず れ に お い て も対比例 に 比較 し て 満足で き る も の で あ る と い える 。 特 に ロ ー ル コ ア の厚さ が 7 5 顧〜 9 0 廳の場合 に は 、 前記各要素の い ず れ に お い て も きわ だ っ て 優れ た 結果を得る こ と がで き た 。 尚 音像定位性が よ く 、 奥行き 、 拡が り を も っ た 音が得 ら れる要因 の 一つ に 、 ロ ー ル コ ア の各 セ ルの外側 は第 1 図 中部分 2 0、 2 0に お い て は気密に接着さ れて い る が 、 部分 2 1に お い て は圧接さ れて い る の みで 、 セル 1 8と 間 隙 1 9と が連通 し て い る こ と が あ る も の と 思わ れる 。  From this result, it can be said that this acoustic adjustment plate is more satisfactory in terms of clarity, diffusion, and lingering as compared with the comparative example. In particular, when the roll core thickness is between 75 and 90, excellent results can be obtained with any of the above elements. . One of the factors for obtaining sound with good sound image localization and depth and spread is that the outside of each cell of the roll core is the parts 20 and 20 in Fig. 1. The cells 18 and the gaps 19 are connected to each other only in the pressure-bonded state at the part 21, although they are airtightly bonded at It seems that there is something.
- 2 ス ピ ー カ ー ユ ニ ッ ト 支持台 と し て 使用 -2 Used as speaker unit support
Figure imgf000009_0001
Figure imgf000009_0001
^^
O PI ② 比 弹性率 4 · ス 1 V ス 匚 刀 と O PI ② Specificity ratio 4 · su 1 V su
レ*¾ / /if / cm レ * ¾ / / if / cm
Figure imgf000010_0001
Figure imgf000010_0001
i ¾f fits i ¾f fits
« に よ り 、 まで強める こ と «To strengthen
ほ とん 周 ？ S S Ι¾ にIs it almost Shu? In S S Ι¾
③?S\ - n吸TL 晋 Vr; 率 ■ とじ - 7h^ I 十 ③? S \ -n absorption TL Jin Vr; rate ■ Binding- 7 h ^ I ten
し T一 ア ^ 7 to  Shi T-i ^ 7 to
、 つ 十 3¾ tl¾ ノ 』 - ハ、、  , Thirteenth tl¾ no 』-ha,
nTL 立 ¾h 田 4 吸首 狩 リ 。 力 タ グ 十 ； & ス じ 刀  nTL Standing field 4 Sucking neck hunting. Power tag ten; & sword
/王- ^ ϋ 白 H7 白 ΛΖ  / King- ^ ϋ White H7 White ΛΖ
艮 ¾Γ ク π u ス "7 按 m gfh i囬s; ¾、 なので密着性が 白  7 ¾Γ m gfh i us; ¾, so the adhesion is white
{^ ノ 〜Z U +7 亜 ίΛ " ノ ー ヽ W仇 {^ ノ ~ Z U +7 sub
価 値 自 由度が高い。 Value High degree of freedom.
( 寸法 ： 実施例 450 X 300mm x 91廳 内コ ア厚 90廳 ） 効果比較 (Dimensions: Example 450 x 300mm x 91 hall inner core thickness 90 hall) Comparison of effects
コ ンク 一 実施倒  Defeated by Konk
卜プロ ッ ク  Remote block
音の明瞭さ △  Sound clarity △
音 像 定 位 〇 ◎  Sound image localization 〇 ◎
3? B貞 厶 ◎ ロ ー ル コ ア の一方の 開 口 面 に 通 上記の よ う に 本発明 に よ れば 、 3? B Sadamu ◎ According to the present invention, as described above, the roll core is passed through one of the opening surfaces of the roll core.
気性布を貼付す る と共 に 、 他方の 開口面を非透過性シ ー 卜 で 閉塞 し て 音響調整板を構成 し た の で 、 低音域か ら 髙音域 に つ て 平均 的に 吸音 し 、 かつ 適度 に 反射す るので 、 ク リ ヤ ー な音を得る こ と がで ぎ る 。 ま た 吸音材が吸音機能を あ つ ので 、 ス ピ ー カ ー の 音が 壁床等を振動さ せる こ と を未然 に 防止す る （ 制振効果 ） こ と がで き る等の効果が ぁ る 。 尚 、 ス ピ ー カ ー の特性向 上 に は 、 こ の 音響 調整板を ス ピ ー 力一ュ ニ ッ 卜 支持台 と し て 用 い る の みで十分で あ る が 、 背板 と 組み合わ せ れば 、 よ り 一層 の効果を得る こ と が で き る 。 ま た 壁材 に 用 い れば 、 音反射効果の あ る 防音壁を得る こ と が でき 、 楽器の練習室 に 好適で あ る Since the acoustic adjustment plate was constructed by attaching a temper cloth and closing the other opening with a non-permeable sheet, sound was absorbed from the low-frequency range to the high-frequency range on average. Since it is reflected moderately, a clear sound can be obtained. Also, since the sound absorbing material has a sound absorbing function, it is possible to prevent the sound of the speaker from vibrating the wall floor, etc. (damping effect).ぁIn order to improve the speaker's characteristics, it is sufficient to use this acoustic adjustment plate as a speaker unit support, but it is sufficient to combine it with the back plate. By doing so, it is possible to obtain even more effects. Also, if it is used as a wall material, a soundproof wall with sound reflection effect can be obtained, which is suitable for a musical instrument practice room.
O PI O PI
J  J

Claims

請求の範囲 . ペーパー製ロ ールコアを芯材と し 、 その一方の開口面 、多孔性力パー シ ー 卜 を貼着 し 、 他方の開口面に空気不 透過性シー ト を貼着 してなる音響調整板。  Claims A sound obtained by bonding a roll core made of paper as a core material, adhering a porous force sheet to one opening surface, and adhering an air-impermeable sheet to the other opening surface. Adjustment plate.
多孔性力パ ー シー 卜 は、 音波透過性があ る起毛布、 植 The porous force sheet is made of a brushed cloth,
'毛布ま た はフ ェル トである特許請求の範囲第 " 1 項記載 の音響調整板。 The acoustic adjustment plate according to claim 1, wherein the acoustic adjustment plate is a blanket or a felt.
空気不透過性シー 卜 は鉛板である特許請求の範囲第 1 項記載の音響調整板。  2. The acoustic adjustment plate according to claim 1, wherein the air-impermeable sheet is a lead plate.
空気不透過性シ ー ト は、 鉄粉を混入 し た熟可塑性ブラ ス チッ ク シ ー 卜 である特許請求の範囲第 1 項記载の音 罾調整板。  The sound adjusting plate according to claim 1, wherein the air-impermeable sheet is a ripened plastic sheet mixed with iron powder.
PCT/JP1984/000153 1983-03-30 1984-03-30 Sound-adjusting plate WO1984003982A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4615883U JPS59156300U (en) 1983-03-30 1983-03-30 acoustic adjustment board
JP3223684U JPS60143496U (en) 1984-03-05 1984-03-05 acoustic adjustment board

Publications (1)

Publication Number Publication Date
WO1984003982A1 true WO1984003982A1 (en) 1984-10-11

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WO (1) WO1984003982A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS486820Y1 (en) * 1967-08-30 1973-02-21
JPS5124241Y2 (en) * 1973-08-30 1976-06-22
JPS5152322Y2 (en) * 1974-12-20 1976-12-15
JPS522401Y2 (en) * 1975-03-11 1977-01-20
JPS5338336Y2 (en) * 1974-09-20 1978-09-18
JPS5413301A (en) * 1977-07-01 1979-01-31 Shisutemu Reiauto Kk Shield plate
JPS5546866B1 (en) * 1970-12-18 1980-11-26

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166149A (en) * 1965-01-19 Damped-resonator acoustical panels
US4379191A (en) * 1975-08-13 1983-04-05 Rohr Industries, Inc. Honeycomb noise attenuation structure
GB2056367B (en) * 1979-07-06 1983-06-02 Rohr Industries Inc Process for producing noise attenuation panels

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS486820Y1 (en) * 1967-08-30 1973-02-21
JPS5546866B1 (en) * 1970-12-18 1980-11-26
JPS5124241Y2 (en) * 1973-08-30 1976-06-22
JPS5338336Y2 (en) * 1974-09-20 1978-09-18
JPS5152322Y2 (en) * 1974-12-20 1976-12-15
JPS522401Y2 (en) * 1975-03-11 1977-01-20
JPS5413301A (en) * 1977-07-01 1979-01-31 Shisutemu Reiauto Kk Shield plate

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0139765A4 *

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EP0139765A4 (en) 1985-10-14

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