201239156 六、發明說明： 【發明所屬之技術領域】 且可視需要具有穿透吸 本發明係關於傾財吸音特性， 音板之透視性和透光性的吸音板。 【先前技術】 ^為、路#鐵路等的隔音壁，—般音源側 多狹縫的金屬板，且背_遮音板在作為 ^成有許 體中’將玻璃棉等之軟韻料、多孔t吸音材j屬製框 線和雨水等所造成之劣化防止紫外 護者。 ^㈣目的下，插人經耐純相所保 作為對於道路兩贱家之日照對策和景 對策，可解❹如樹㈣料板等之透光㈣音壁=望 組合有透光型膜振動吸音板與透明之樹脂 I遮曰板的透先•吸音型隔音壁呈實用化。 經由上述組合有透光型膜振動吸音板與透明之樹脂製遮 曰板的透光•吸音型隔音壁的實用化，雖然可將更以前之立 源側作成形成有許多狹縫的金屬板，且背面的遮音板在作: 金屬板的金屬製框體中，使用裝人玻璃棉等之軟質纖維系多 孔質吸音材之吸音面板時之課題、對於道路㈣民家的日职 問題和景觀上之問題’同乘者無法看見外面景色等在眺望: 問題大約已被解決，但在將來則内藏下述問題。 根據本發明者等所發明之透光_振動吸音板、以及隔音 100110722 201239156 壁所用之透光型膜振動吸音板，係使用網孔大小為以 下之2片鋁製板網。因此，關於重要的透光性•透視性要求 進一步改善。 [專利文獻1]日本專利第2518589號公報 [專利文獻2]台灣專利第159152號公報 【發明内容】 (發明所欲解決之問題） 本發明之目的，在於解決上述問題，並且提供一種透光 性·透視性更加優異之透光型膜振動吸音板。 (解決問題之手段） 本申】請人等，將上述專利文獻1中所示之2片板狀體之2 片紹製板網m變成透明開孔樹脂板料到提高光線 穿透率。X ’發現將2片才反狀體兩者作成透明開孔樹脂板之 同夺使透明開孔樹脂板各個孔位置錯開，以防止 =:到先線穿透率更加提高。更且，一 二片透明開孔樹脂板間的至少-處，介隔著接黏材予以 1發:=高密合性而提高吸音特性，並且達成本發明。 態樣，係於具有許多開口之2片板狀體失持 事先將成者，其賴為，2片板㈣之-方係 圍，另^板網予以平坦化者，其平坦率為㈣〜㈣之範 ’另—者為孔徑5mm〜l5mm且板厚為lmm〜3mm之 ㈣率為20%〜5G%範圍之透明開孔樹脂板。 100110722 201239156 本發明之第二態樣’係於2片透明開孔樹脂板之間夾持1 片透明樹脂薄膜而成者，其特徵為，2片開孔板的板厚相同 為1mm〜3mm ’孔徑亦相同為5mm〜15mm，且，2片透明開 孔樹脂板之各個開口率為2〇0/〇至5〇%範圍之同時，相對於 重疊2片透明開孔樹脂板時之音源側的開口面積，2片透明 開孔Μ月日板共通且重疊之開口部分的面積比率&㈣〜7〇%。 本發明之第二態樣，係將第一態樣及第二態樣中記載之i 片透明樹脂薄膜與1片透明開孔樹脂板間的至少—處，介隔 著接黏材予㈣定，經由提高密合性，使得吸音特性提高。 (發明效果） 、‘，工由使用本發明之透明開孔樹脂板，則可構築透光性·透 視性更加優異的隔音壁。 【實施方式】 關於本發狀絲型_㈣音板，參騎關面予以 細說明。另外’於下列之說明中，所謂透光型膜 係太陽光線可穿透’且透過吸立 ❿及《板可看透外在景觀的吸. 板。又，於下列之說明中，所增 β反、、罔係對金屬板使用特殊, 刃型加入鋸齒狀排列的切孔，间Α ^邊將其按拉一邊形成: 孔的網狀金屬板。圖1係板綑夕 、 、一的網孔1的正面圖，圖 係圖1之a-a剖面圖’圖3係示山^ 圖2狀態予以報乾，； 行平坦化加工之狀態的說明圖。 如圖2所_般’ •網的剖面具有大的起伏(凹凸），; 100110722 201239156 將透明樹脂薄膜2夾持時（另一 膜2的接總尤板狀體‘略）’與透明樹脂薄 膜2的接觸補充分’結果料特性科衫。圖 將板網，使魏_施行平坦化加工狀態之說明圖，夹^ ΐ=2Γ 一板狀體省略)，因為與透明樹_ 的接觸充分，故吸音特性亦提高。 但是’板網的平坦率與吸音特性之間具有關係，平坦率可 由圖2所示之T、與圖3所示之t的關係’根據下 求出。 ； R=(T-t)/T 1) R :平坦率 T ·板網之原厚（mm) t :板網之平坦化後厚度(mm) 根據本發明者等的詳細檢討結果，（式1)求出之平坦率為 0.45〜0.60之範圍係吸音特性上優異的範圍，以〇 55~〇 的 範圍更適當。另外，板網的厚度計測係以下述方式使用厚产 計，握住(股)Deckjam製之厚度計7305 :桿將測定物（多孔 金屬）夾住，於度盤式指示器上顯示厚度。 平坦化加工後之板網厚度並無特別限定，若根據所要求之 機械性強度、透光型膜振動吸音板之大小等適當選擇即可， 但若考慮吸音特性、操作性、加工性、重量等，通常為 0.2mm〜2mm左右、較佳為仏4111111〜1 mm。又，於下列說明 中所謂透明開孔樹脂板，係對透明的樹脂板施行打穿加工的 100110722 6 201239156 板狀體’因為無上述板網情況般的凹凸，故不需要平坦化的 加工。 本發明之透明開孔樹脂板的厚度，以lmm〜3mm的範圍為 貫用的’但以1.5mm〜2.0mm的範圍為更適當。透明開孔樹 脂板的開口形狀一般以圓形的鋸齒狀配置’但並非拘泥於此 形狀，以矩形和方形、三角形亦無妨。開口形狀為圓形時的 孔徑貫用為5mm〜15mm，但以8mm〜12mm為更適當。又， 透明開孔樹脂板的開口率（開口部分的全面積+樹脂板的面 積X100)以20%〜50%的範圍為實用的，但以30%〜40%的範 圍為更適當。 又’於下列說明中作為透明樹脂製薄膜，可例示公知的各 種物質’但以聚四氟乙烯(PTFE)、四氟乙烯·乙烯共聚合體 (ETFE)、聚三氟化氣乙烯(PCTFE)等透明的樹脂薄膜為適於 例不。請等聚氟乙烯系樹脂為準不燃性，且耐藥品性、耐候 性、耐熱性優異者。以下，稱為氟系透明樹脂薄膜。 其次’使用圖4說明關於本發明之透光型膜振動吸音板的 吸音機構。即’若由音源G對透光型膜振動吸音板3的表 面入射音波S，則經由音波S(振動空氣）的作用使氟系透明 薄賤5振動。即，聲音的能量被氟系透明樹脂薄膜5 的振動而轉換且表現吸音作用。（以下，視作吸音作用a。於 圖中未記栽。） 又’如上述吸音作用a般若氟系透明樹脂薄膜5振動，則 100110722 7 201239156 缚膜表面、與接觸薄膜之施行平坦化加工的板網4及透明開 孔樹脂板6的表面摩擦產生之聲音能量轉換成熱能，結果聲 曰的旎$被吸收而吸音。（以下，視作吸音作用b。於圖中 未記載。） 經由使板網平坦化以提高吸音特性的理由，推測經由平坦 化使氟系透明樹脂薄膜5與上述板網4及透明開孔樹脂板6 的接觸面積增大，且增加上述吸音作用b。更且，音波(s) 衝撞透光型膜振動吸音板3，若對板暫時加以扭轉和彎曲， 則經由板厚有的彈性而恢復並且於板產生振動。此時，推測 聲音的能量被轉換成振動的能量且被吸音。（以下，視作吸 音作用c。於圖中未記載。） 其次’如圖4所示般若在透光型膜振動吸音板3的背後介 隔著背後空氣層A配設透明樹脂製遮音板7，則透光型膜振 動吸音板3的吸音特性更加提高。其理由_係透光型膜振 動吸音板3的振動經由壓縮背後空氣層a而產生背壓Bp， 表現吸音作m以下’視作吸音仙d。於財未記載。） 本發明之透光型膜振動吸音板3,經由上述吸音作用 a〜c、及吸音作用d的相乘效果，發揮優異的吸音特性。又， 經由改善背後空氣層A的大小，則可移動後述表i及表3 所示之吸音率的峰值。即，若知士非> …a 右加大產後空氣層A，則此峰值 移動至表中的低頻率側，故描古你此古， 杈阿低頻率側的吸音特性。相反 若選擇變小背後空氣層Α，則 成&#乂 臾J上ι4峰值移動至表中的右方， 100110722 „ 201239156 故有利高頻率侧的吸音特性。 [實施例] (實施例1) 以下，根據實施例具體說明本發明。 準備使用軋製輥施行平坦化加工之網孔大小為 10mmx20mm、大小為1000mmx2000mm之銘製板網8的板 狀體。平坦化加工前的鋁製板網8的原厚T為2mm、平坦 化加工後的板厚為0.85mm、平坦率盡力作成〇.58mm。又， 準備厚度為1.5mm、開口徑為10mm、開口的中心間距離（間 距）為Mmm、開口角度為60度之鋸齒狀排列且開口率為 35%、大小為l〇〇〇mm><2〇OOmm的聚碳酸酯製透明開孔樹脂 板9。作為樹脂薄膜，係使用氟系透明樹脂薄膜1〇，膜厚 12μιη 者。 <4备 '4 在上述、大小為l〇〇〇mm><2〇〇〇mm之聚碳酸酿製透明門孔 樹脂板9的長邊側兩端，預先貼上5nmi寬的兩面接 ^ (圖中未明記），於此處將上述膜厚12μιη之氟系+多咿 膜10穩定安裝貼附。在安裝有氟系透明樹脂薄犋丨〇挝月日 聚碳酸酯製透明開孔樹脂板9上，安裝上述鉋势 之上述 且使用 將四周使用厚度〇2mm、寬2〇mm之鋁製膠帶碉8，進 紹膠帶成形壓黏機予以固定 之透光型 ，施行平 圖5中，示出由正上方俯視本發明之第一發明 振動吸音板12狀態的平面圖。如圖中所闡明般 100110722 Λ 201239156 化加工的銘製板網8位於上面（音源側）。圖6示於圖5之a-a 剖面圖。圖5、圖6均為說明圖，構成物的尺寸和形狀並非 實寸比例。 以圖7所示之2〇〇〇mm(長度）xl〇〇〇mm(寬）x 100mm(深 度）’製作僅開放上面的框體13。於寬度方向的中央部，設 置用以防止透光型臈振動吸音板彎曲的中木條14。另外’ 此框體13的底面為厚度5mm的透明樹脂製遮音板，即，透 明聚碳酸酯製遮音板15。又，四周的框部材16及中木條I4 組合使用厚度1 mm的紹板加工成箱狀而成之寬25mm(即’ 其為框部材及中木條的厚度）的板材。 圖8示出圖7的b-b剖面圖。又，圖9示出圖7的c-c剖 面圖。將此框體13的上面（開放面）以封閉般，搭載上述本 發明之透光型膜振動吸音板12的狀態17示於圖1〇。於本 發明之搭載透光型膜振動吸音板12的狀態π中，根據JIS A1409-1998測定殘響室法吸音率的結果示於表1的實施例 1 ° 若比較表1的實施例1、與習知品的比較例1則可明確， 實施例1之本發明的透光型膜振動吸音板12顯示良好的吸 音特性。那麼，於本發明之透光型膜振動吸音板12中，不 僅其吸音特性，光線穿透率亦為特性上的重要要素。 實施例1所用之本發明的透光型膜振動吸音板12，即， 網孔大小為l〇mmx20mm使用已施行平坦化加工之銘製板 100110722 10 201239156 網8、與孔徑為1Gmm之聚碳_製透明開孔樹脂板9之本 發明之透光型膜振動吸音板12的光線穿透率，使用照度計 予以計測。照度計為(股)HIR〇KI製（曰本製)之型式：⑽m TESTER 3421(受光部：約 4〇ιηιηφ)。 測定將上述本舍明之透光型膜振動吸音板放置於照度 計受光部前之時、和未放置時的照度，並且求出光線穿透 率。光源使用自然光。表2之實施例丨中，表示使用上述照 度計’求出申請項1之本發明之透光韻振動吸音板12之 光線穿透率的結果。若比較表2之實施例丨、與習知品之比 較例1則可明確’經由採用實施例丨之本發明的透光型膜振 動吸音板12，確貫可將光線穿透率改善約5〇%左右。 (比較例1) 比較例1之透光型膜振動吸音板2〇，係於日本國内在西 元2000年以後’主要使用於高速道路的隔音壁用。準備使 用乳製輥已施行平坦化加工之網孔大小為5nimxi〇mm、大 小為1000mmx2000mm之鋁製板網19的板狀體。同樣準備 網孔大小為4mmx8mm、大小為iooommUOOOmm之鋁製板 網18的板狀體。 作為樹脂薄膜’係使用與實施例1相同之氟系透明樹脂薄 膜，膜厚12μιη者。在上述、網孔大小為5mmxlOmm、 大小為lOOOmmx2000mm之铭製板網19之板狀體長邊側的 兩端’預先貼上5mm寬的兩面接黏膠帶（圖中未明記），於 100110722 11 201239156 此處將上述膜厚12μιη之氟系透明樹脂薄膜ι〇穩定安裝貼 附。 在安裝有氟系透明樹脂薄膜10之上述|呂製板網19的板狀 體上’安裝上述鋁製板網18的板狀體，並將四周使用厚度 0.2mm、寬20mm之鋁製膠帶11，且使用鋁膠帶成形壓黏機 予以固定’作成比較例1之透光型膜振動吸音板2〇。 圖11中示出由正上方俯視比較例1之透光型膜振動吸音 板20狀態的平面圖。又，圖12示出圖11的d-d剖面圖。 圖11、圖12均為說明圖，構成物的尺寸和形狀並非實寸比 例。將此比較例1之透光型膜振動吸音板2〇，安裝至與圖 7〜圖9所示實施例1同樣的框體13，並且以實施例j同樣 之方法計測殘響室法吸音率的結果，與實施例丨及實施例2 比較並且示於表1。又，同樣以實施例丨同樣之方法求出光 線穿透率的結果’與貫施例1及實施例2比較並且示於表2。 (實施例2) 準備與貫加例1同樣厚度為1 ·5πιπι、開口徑為1 〇mm、開 口之中心間距離（間距）為16mm、開口角度為6〇度之鋸齒狀 排列且開口率為35°/〇、大小為1〇〇〇minx2〇〇〇nmi的聚碳酸 酯製透明開孔樹脂板21。作為樹脂薄膜，係使用與實施例i 同樣之氟系透明樹脂薄膜.10，膜厚12μιη者。在上述、大小 為1000mmx2000mm之聚碳酸酯製透明開孔樹脂板21的長 邊側兩端’預先貼上5mm寬的兩面接黏膠帶（於圖中未明 100110722 ^ 201239156 記），於此處將上述膜厚12μιη之氟系透明樹脂薄膜10穩定 安裝貼附。 在安裝有氟系透明樹脂薄膜10之上述聚碳酸酯製透明開 孔樹脂板21上，安裝與上述相同樣式之聚碳酸酯製透明開 孔樹脂板22，分別對於10mm之開口徑，以孔位置在5mm 長度方向以錯開般切斷加工的聚碳酸酯製透明開孔樹脂板 22，且與實施例1同樣，四周使用厚度0.2mm、寬20mm之 鋁製膠帶11，並使用鋁膠帶成形壓黏機予以固定。 圖13中示出由正上方俯視本發明之第二發明之透光型膜 振動吸音板23狀態的平面圖。又，圖14示出圖13的e-e 剖面圖。圖13、圖14均為說明圖，構成物的尺寸和形狀並 非實寸比例。此處使用圖15，說明關於相同樣式之2片透 明開孔樹脂板之孔位置，於長度方向以開口徑（10mm)—半 (5mm)錯開配置時2片開孔樹脂板之開口面積的關係。 圖15係說明本發明之「相對於2片開孔板重疊時之音源 側的開口面積S，2片開孔板共通之開口部分之面積Q的比 率A(°/〇)」之圖。（a)示出由音源側觀察之2片開孔板之重疊 狀態的平面圖，又，（b)示出f-f剖面圖。若將今音源側之開 口部（圓）面積定為Η，與音源相反側之開口部（圓）重疊之開 口部分，即，上下開孔板(22與21)共通之開口部分的面積 設定為Κ，則開孔板共通部分的面積比率可以 Α(%)=Κ+Ηχ100 算定。 100110722 13 201239156 本發明中上述面積比率A為0%(無貫通2片開孔板之共 通部分)〜70%之範圍中，已確認相較於面積比率A為1〇〇%(2 片開孔的孔位置一致）之狀態吸音特性良好，但以5%〜60% 的範圍為更合適。即，本實施例之算定面積比率A=39.2%。 將此實施例2之透光型膜振動吸音板23，安裝至與圖7〜 圖9所示實施例1同樣的框體13，並且以實施例1同樣之 方法計測殘響室法吸音率的結果，與實施例1及比較例1 比較並且示於表1之實施例2。若比較表1之實施例2、與 習知品之比較例1及實施例1則可明確得知，實施例2之本 發明透光型膜振動吸音板23亦顯示良好的吸音特性。又’ 同樣以實施例1同樣之方法求出光線穿透率的結果示於表 2 ° 若比較表2之實施例2、與習知品之比較例1比較則可明 確得知，經由採用實施例2之本發明透光型膜振動吸音板 23 ’明確得知可將光線穿透率改善約73%。如表2所闡明 般，本發明之透光型膜振動吸音板（丨2和23)，較比較例1 之習知品，即，圖11所示使用2片事先施行平坦化加工之 鋁製板網（18和19)的透光型膜振動吸音板20，更加大幅提 高光線穿透率。 (實施例3) 以實施例1同樣之方法，準備圖16所示大小為lOOOmmx 2000mm之聚碳酸酯製透明開孔樹脂板9。如圖16與其f-f 100110722 14 201239156 面圖之圖17所不般，在聚碳酸g旨製透明開孔樹脂板9的 • 2處’貼上5mm寬的兩面接黏膠帶24。（透明開孔樹脂板之 長邊側兩端，亦如上述實施例i般以5疆寬的兩面膠帶固 定，但於圖中省略。） 在此聚碳酸醋製透明開孔樹脂板9上，將膜厚12μΐΏ之氟 系透明樹脂薄膜10穩定安裝貼附而如巾請項3所示，將氣 系透明樹脂薄膜1〇與i片聚碳酸醋製透明開孔樹脂板9間 的至少一處，介隔著接黏材予以固定，作成經由提高密合 性’使吸音特性提高之本發明第三發明的透光型膜振動吸音 ‘板 25。 .圖16中示出由正上方俯視本發明第三發明之透光型膜振 動吸音板25狀態的平面圖。又，圖17中示出圖16的f-f 剖面圖。圖16與圖π均為說明圖，構成物的尺寸和形狀並 非實寸比例。將此實施例3之透光型膜振動吸音板25，如 圖18所示般，安裝至與圖7〜圖9所示之實施例1相同的框 體13 ’並且以實施例丨同樣之方法計測殘響室法吸音率的 結果於表3之實施例3中，與實施例1比較示出。 表3之氟系透明樹脂薄膜丨〇，使用5mm寬的兩面接黏膠 帶24，部分固定至聚碳酸酯製透明開孔樹脂板9的實施例 3，確實比未部分固定之實施例1之情況顯示良好的吸音特 性。 (實施例4)(申請項3之Polica/Polica :兩面膠帶） 100110722 15 201239156 說明關於本發明第三發明之又一透光型膜振動吸音板 27。以實施例2同樣之方法，準備圖19所示大小為 之聚碳酸醋製透明開孔樹脂板η。如圖 i 9與其g g剖面圖之圖2 〇所示般，在聚碳酸醋製透明開孔 樹脂板的2處，貼上5mm寬的兩面接黏膠帶μ。（透明 開孔樹脂板之長邊側兩端，亦如上述實施例！般以$腿寬 的兩面朦帶固定，但於圖中省略。） 在此聚碳_製透明開孔樹脂板21上，將膜厚叫爪之 氣系透明樹脂薄膜！〇穩定安裝貼附如申請項3所示，將敦 系透月樹月日薄膜10與i片之聚碳酸醋製透明開孔樹脂板9 間的至少-處’介隔著接黏材固^，作成經由提高密合性， 使吸音特性提高之本發明第三發明之又—透光型膜振動吸 音板27。 圖19中示出由正上方俯視本發明第三發明之又一透光型 膜振動吸音板27狀態的平面圖。又，圖20中示出圖19的 g-g剖面圖。圖19與圖20均為說明圖，構成物的尺寸和形 狀並非實寸比例。將此實施例4之透光型膜振動吸音板27， 安裝至與實施例3同樣之框體13(省略圖面），並將以實施例 2同樣之方法計測殘響室法吸音率的結果，與實施例2比較. 示於表3。 將表3之氟系透明樹脂薄膜1〇，使用5mm寬的兩面接黏 膠帶24，部分固定至聚碳酸酯製透明開孔樹脂板9的實施 100110722 16 201239156 例4，確實較未部分固定之實施例2之情況顯示良好的吸音 特性。此處，說明使用兩面接黏膠帶24，藉由部分固定至 聚碳酸酯製透明開孔樹脂板9提高吸音特性的理由。 以殘響室法計測吸音率之情況，如圖10與圖18所示般， 透光型膜振動吸音板（12、23)係以載放於框體13上的狀態 安裝至殘響室的床面。因此，在圖6之剖面圖所示之鋁製板 網8與聚碳酸酯製透明開孔樹脂板9之間，因彎曲而產生間 隙。推測此間隙若變大，則關於上述圖4所示之透光型膜振 動吸音板之吸音機構經由已說明的吸音作用b，即「若氟系 透明樹脂薄膜5振動，則薄膜表面、與薄膜接觸之已施行平 坦化加工之板網4及透明開孔樹脂板6的表面摩擦產生之聲 音能量轉換成熱能，結果聲音的能量被吸收而吸音。」減少 吸音量。 於是於發生上述「鋁製板網8與聚碳酸酯製透明開孔樹脂 板9之間因彎曲所造成之間隙」之情況，經由採用本發明第 三發明之方法，「將1片透明樹脂薄膜與1片透明開孔樹脂 板間的至少一處，介隔著接黏材予以固定，經由提高密合 性，使吸音特性提高之透光型膜振動吸音板」，則可提高吸 音特性。 其次，氟系透明樹脂薄膜10的片數，如圖21所示般在下 側（音源相反側）之聚碳酸酯製透明開孔樹脂板的下側，即使 使用多一片亦無妨。如此取得稍微提高吸音特性。又，於實 100110722 17 201239156 施例1〜實施例3之透光型膜振動吸音板（12和23和25)中， 亦如圖21所示般在下側之聚碳酸酯製透明開孔樹脂板(9和 21)的下侧，即使使用多一片氟系透明樹脂薄膜10亦無妨。 100110722 18 201239156 [表1] 本發明^透光型膜振動吸音板與習知品^玲塑沬成在盎屮齡 頻率 (Hz) 實施例 鋁板網與透明 開孔樹脂板 比較例1 在呂板網與|g板網 (習知品） 實施例2 透明開孔樹脂板與 樹脂板 AM-100mm 0.30 12/zm樹脂薄膜 12em樹脂薄膜 空氣層=100mm 空氣層=1 〇〇mm201239156 VI. Description of the invention: [Technical field to which the invention pertains] It is also possible to have a sound absorbing panel according to the present invention regarding the characteristics of the sound absorption and sound absorption, the transparency and the light transmittance of the soundboard. [Prior Art] ^The soundproof wall of the road, the railway, etc., the metal plate with a multi-slot on the side of the sound source, and the back_the sound-shielding plate is used as the soft body of the glass wool, and the porous t-absorbing sound. The deterioration caused by the material frame line and rainwater prevents the UV protector. ^ (4) The purpose is to insert the person to resist the pure phase as the countermeasures for the sunshine of the two roads, and to solve the problem, such as the tree (four) material plate and other light transmission (four) sound wall = hope combination light-transmitting film vibration The sound absorbing panel and the transparent resin I concealer are transparent. Through the above-described combination of the light-transmitting type diaphragm vibration absorbing panel and the transparent resin-made visor, the light-transmitting and sound-absorbing type sound-insulating wall is practically used, and the metal source plate having a plurality of slits can be formed from the previous source side. In the metal frame, the sound-absorbing panel on the back side is used for the sound-absorbing panel of a soft fiber-based porous sound absorbing material such as glass wool, and for the road (4) Japanese occupational problems and the landscape. The problem 'the same passenger can't see the outside scenery and so on: The problem has been solved, but in the future there will be the following problems. According to the light-transmitting-vibration sound absorbing panel invented by the inventors of the present invention, and the light-transmitting film vibration-absorbing sound absorbing panel used for the wall of the sound insulation 100110722 201239156, two aluminum mesh nets having a mesh size of the following are used. Therefore, the requirements for important light transmission and perspective are further improved. [Patent Document 1] Japanese Patent No. 2518589 [Patent Document 2] Taiwan Patent No. 159152 [Disclosure] (Problems to be Solved by the Invention) An object of the present invention is to solve the above problems and to provide a light transmissive property. · Light-transmitting film vibration sound absorbing panel with better transparency. (Means for Solving the Problems) In the above-mentioned Patent Document 1, two sheets of the two sheets of the sheet-like body shown in the above Patent Document 1 are changed into a transparent open-cell resin sheet to increase the light transmittance. X ’ found that the two apertures were made into a transparent apertured resin sheet, and the positions of the respective holes of the transparent aperture resin plate were staggered to prevent the penetration of the first line from being increased. Further, at least at least one portion between the two transparent open-cell resin sheets is provided with a single bond: = high adhesion to improve sound absorbing characteristics, and the present invention has been achieved. In the aspect, the two plate-shaped bodies with many openings are lost in advance, and the two are the two-plate (four)-square system, and the other is to flatten the flatness rate (four)~ (4) The other is a transparent open-cell resin sheet having a pore diameter of 5 mm to 15 mm and a sheet thickness of 1 mm to 3 mm (four) ranging from 20% to 5 G%. 100110722 201239156 The second aspect of the present invention is a method in which a transparent resin film is sandwiched between two transparent apertured resin sheets, and the thickness of the two apertured sheets is the same as 1 mm to 3 mm. The aperture is also the same as 5 mm to 15 mm, and the aperture ratio of each of the two transparent apertured resin sheets is in the range of 2 〇 0 / 〇 to 5 〇 %, while the source side of the two transparent apertured resin sheets is overlapped. The area of the opening, the area ratio of the opening portion of the two transparent openings and the overlapping of the opening plates, & (4) ~ 7〇%. According to a second aspect of the present invention, at least a portion between the i-sheet transparent resin film and the one transparent transparent resin sheet described in the first aspect and the second aspect is separated by a bonding material (four) By improving the adhesion, the sound absorbing characteristics are improved. (Effect of the Invention) In the case of using the transparent perforated resin sheet of the present invention, it is possible to construct a sound insulating wall which is more excellent in light transmittance and transparency. [Embodiment] For the hairline type _ (four) sound board, the reference to the riding surface will be described in detail. In addition, in the following description, the so-called light-transmitting film is permeable to the sun's rays and is permeable to the suction plate and the plate can be seen through the suction plate of the external landscape. Further, in the following description, the β-inverse and the lanthanum are used in a special manner for the metal plate, and the blade-shaped type is provided with a zigzag-shaped cut hole, and the Α is formed by pulling the side to form a mesh metal plate of the hole. Fig. 1 is a front view of a mesh 1 of a bundle, and a cross-sectional view of a mesh of Fig. 1. Fig. 3 is a view showing a state in which the state of Fig. 2 is reported to be dry; As shown in Fig. 2, the cross section of the net has large undulations (concavities and convexities); 100110722 201239156 When the transparent resin film 2 is held (the other film 2 is connected to the general plate-like body), and the transparent resin film 2 contact supplements are divided into the results of the material characteristics of the shirt. The diagram will be used to make the stencil, and the illustration of the flattened processing state is clamped. 夹=2Γ A plate-shaped body is omitted. Because the contact with the transparent tree _ is sufficient, the sound absorbing characteristics are also improved. However, there is a relationship between the flatness of the panel and the sound absorbing characteristics, and the flatness ratio can be obtained from the relationship between T and T shown in Fig. 2 as follows. R = (Tt) / T 1) R : flatness ratio T · original thickness of the net (mm) t : thickness after flattening of the net (mm) According to the detailed review results of the inventors, etc., (Formula 1) The range in which the flatness ratio is 0.45 to 0.60 is excellent in the sound absorbing characteristics, and the range of 〇55 to 〇 is more appropriate. Further, the thickness measurement of the screen was carried out in the following manner using a thick gauge, and a thickness gauge 7305 made of Deckjam was held by a rod: the rod clamped the measurement object (porous metal), and the thickness was displayed on the dial indicator. The thickness of the slab after the flattening process is not particularly limited, and may be appropriately selected according to the required mechanical strength, the size of the light-transmitting film vibration absorbing plate, etc., but considering sound absorbing characteristics, workability, workability, and weight. Etc., it is usually about 0.2 mm to 2 mm, preferably 仏4111111 to 1 mm. Further, in the following description, the transparent open-cell resin sheet is a 100110722 6 201239156 sheet-like body which is subjected to a puncture process on a transparent resin sheet. Since the unevenness is not obtained in the case of the above-mentioned screen, it is not necessary to perform flattening. The thickness of the transparent apertured resin sheet of the present invention is preferably in the range of from 1 mm to 3 mm, but is more suitably in the range of from 1.5 mm to 2.0 mm. The opening shape of the transparent open resin board is generally arranged in a circular zigzag shape, but it is not limited to this shape, and it may be rectangular, square or triangular. When the shape of the opening is circular, the aperture is 5 mm to 15 mm, but it is more preferably 8 mm to 12 mm. Further, the aperture ratio of the transparent apertured resin sheet (the total area of the opening portion + the area of the resin sheet X100) is practically in the range of 20% to 50%, but it is more preferably in the range of 30% to 40%. In the following description, as a film made of a transparent resin, various known materials can be exemplified, but polytetrafluoroethylene (PTFE), tetrafluoroethylene/ethylene copolymer (ETFE), polytrifluoroethylene (PETFE), etc. A transparent resin film is suitable for the case. Please wait for the fluoroethylene resin to be incombustible, and to have excellent chemical resistance, weather resistance, and heat resistance. Hereinafter, it is called a fluorine-based transparent resin film. Next, the sound absorbing mechanism of the light-transmitting type film vibration-absorbing sound absorbing panel of the present invention will be described with reference to Fig. 4 . In other words, when the sound source G is incident on the surface of the light-transmitting film-vibrating sound-absorbing panel 3 by the sound source G, the fluorine-based transparent thin film 5 is vibrated by the action of the sound wave S (vibrating air). In other words, the energy of the sound is converted by the vibration of the fluorine-based transparent resin film 5 and exhibits a sound absorbing effect. (Hereinafter, it is regarded as the sound absorbing effect a. It is not recorded in the figure.) If the fluorine-based transparent resin film 5 vibrates as described above, the surface of the film is bonded to the contact film. The sound energy generated by the surface friction of the stencil 4 and the transparent aperture resin sheet 6 is converted into heat energy, and as a result, the squeaky 旎$ is absorbed and absorbs sound. (The following is a view of the sound absorbing effect b. It is not shown in the figure.) It is estimated that the fluorine-based transparent resin film 5 and the above-mentioned stencil 4 and the transparent open-cell resin are planarized by the reason that the stencil is flattened to improve the sound absorbing characteristics. The contact area of the board 6 is increased, and the above-described sound absorbing effect b is increased. Further, the sound wave (s) collides with the light-transmitting type film vibration-absorbing sound-absorbing plate 3. When the plate is temporarily twisted and bent, it is restored by the elasticity of the plate thickness and vibrates in the plate. At this time, it is estimated that the energy of the sound is converted into the energy of the vibration and is absorbed. (Hereinafter, it is regarded as the sound absorbing effect c. It is not shown in the figure.) Next, as shown in Fig. 4, a transparent resin sound insulating plate 7 is disposed between the light-transmitting film vibration-absorbing and absorbing panel 3 via the back air layer A. Further, the sound absorbing characteristics of the light-transmitting film vibration-absorbing sound absorbing panel 3 are further improved. The reason is that the vibration of the light-transmitting type diaphragm vibration-absorbing sound-absorbing panel 3 generates the back pressure Bp by compressing the back air layer a, and the sound-absorbing sound is made m or less as the sound-absorbing sound d. Yu Cai did not record. The light-transmitting type film vibration-absorbing sound-absorbing panel 3 of the present invention exhibits excellent sound absorbing characteristics by the multiplication effects of the sound absorbing effects a to c and the sound absorbing action d. Further, by improving the size of the back air layer A, the peak value of the sound absorption rate shown in Tables i and 3 described later can be moved. That is, if Zhishifei > ...a increases the postpartum air layer A to the right, the peak shifts to the low frequency side of the table, so that the sound absorption characteristics of the low frequency side of the ancient world are described. On the contrary, if the air layer 背后 is selected to be smaller, the peak value of ι4 on the &#乂臾J moves to the right of the table, and 100110722 „ 201239156 is advantageous for the sound absorbing characteristics on the high frequency side. [Embodiment] (Embodiment 1) Hereinafter, the present invention will be specifically described based on examples. A plate-like body of a stencil 8 having a mesh size of 10 mm x 20 mm and a size of 1000 mm x 2000 mm which is subjected to flattening by a rolling roll is prepared. The aluminum stencil 8 before flattening processing is prepared. The original thickness T is 2 mm, the thickness after flattening is 0.85 mm, and the flatness is as much as 〇.58 mm. Further, the thickness is 1.5 mm, the opening diameter is 10 mm, and the center-to-center distance (pitch) of the opening is Mmm. A polycarbonate transparent open-cell resin sheet 9 having an opening angle of 60 degrees and having an opening ratio of 35% and a size of l〇〇〇mm><2〇OOmm. As a resin film, fluorine-based transparent is used. The resin film is 1 〇, and the film thickness is 12 μm. <4 Preparation '4 On the long side of the above-mentioned polycarbonate-made transparent door resin sheet 9 having a size of l〇〇〇mm><2〇〇〇mm End, pre-posted 5nmi wide two-sided connection ^ (not clearly stated in the picture), The fluorine-based + multi-ruthenium film 10 having a film thickness of 12 μm is stably attached and attached. The fluorine-coated transparent resin is attached to the transparent open-cell resin plate 9 made of the Japanese moon-day polycarbonate, and the above-mentioned planing surface is installed. The above-mentioned aluminum tape 碉8 having a thickness of 〇2 mm and a width of 2 〇mm is used, and the light-transmitting type which is fixed by the tape forming press machine is applied, and the plan view is shown in FIG. A plan view showing the state of the vibration absorbing panel 12 of the first invention. As illustrated in the figure, 100110722 Λ 201239156 The processed stencil 8 is located on the upper side (source side). Fig. 6 is a cross-sectional view taken in Fig. 5 aa. Fig. 5 6 is an explanatory diagram, and the size and shape of the constituent are not in the actual inch ratio. The opening is only opened by 2〇〇〇mm (length) xl〇〇〇mm (width) x 100mm (depth) shown in Fig. 7 The frame body 13 is provided with a middle wood strip 14 for preventing the light-transmitting type vibration sound absorbing panel from being bent at the center portion in the width direction. The bottom surface of the frame body 13 is a transparent resin sound-shielding plate having a thickness of 5 mm, that is, transparent. Polycarbonate sound-absorbing panel 15. Further, the surrounding frame member 16 and The wood strips I4 are combined into a box having a thickness of 1 mm and formed into a box shape and having a width of 25 mm (i.e., 'which is the thickness of the frame member and the middle wood strip). Fig. 8 is a cross-sectional view taken along line bb of Fig. 7. Fig. 9 is a cross-sectional view taken along line cc of Fig. 7. The state 17 in which the upper surface (open surface) of the casing 13 is closed and the light-transmitting type diaphragm vibration-absorbing acoustic panel 12 of the present invention is mounted is shown in Fig. 1 . In the state π in which the light-transmitting type film vibration-absorbing sound absorbing plate 12 is mounted, the sound-absorbing ratio of the residual room method is measured in accordance with JIS A1409-1998. The results are shown in Table 1 of the first embodiment. In Comparative Example 1, it is clear that the light-transmitting type film vibration-absorbing acoustic panel 12 of the present invention of Example 1 exhibits good sound absorbing characteristics. Then, in the light-transmitting type film vibration-absorbing sound-absorbing panel 12 of the present invention, not only the sound absorbing characteristics but also the light transmittance is an important factor in characteristics. The light-transmitting type film vibration-absorbing sound-absorbing panel 12 of the present invention used in the first embodiment, that is, the mesh size is l〇mmx20 mm, using the flattening plate 100110722 10 201239156 net 8, which has been subjected to planarization processing, and the polycarbon having a pore diameter of 1 Gmm_ The light transmittance of the light-transmitting type film vibration-absorbing sound-absorbing panel 12 of the present invention in which the transparent aperture resin sheet 9 is made is measured using an illuminometer. The illuminance meter is a type of HIR 〇 KI (made by the 曰) system: (10) m TESTER 3421 (light-receiving part: about 4 〇ιηιηφ). The illuminance at the time of placing the light-transmitting type film vibration-absorbing plate of the present invention in front of the illuminance receiving portion of the illuminometer and when it was not placed was measured, and the light transmittance was determined. The light source uses natural light. In the embodiment of Table 2, the result of obtaining the light transmittance of the light-transmitting vibration-absorbing sound absorbing panel 12 of the present invention of the application 1 is shown using the above illuminometer. Comparing the Example of Table 2 with Comparative Example 1 of the conventional product, it is clear that the light transmittance can be improved by about 5% by the light-transmitting film vibration-absorbing sound-absorbing panel 12 of the present invention by using the embodiment. about. (Comparative Example 1) The light-transmitting type film vibration-absorbing and absorbing panel 2 of Comparative Example 1 was used in Japan for the sound-proof wall of an expressway after the year 2000. A plate-like body of an aluminum mesh 19 having a mesh size of 5 nimxi 〇 mm and a size of 1000 mm x 2000 mm which has been subjected to planarization processing using a glazing roll is prepared. Also, a plate-like body of an aluminum mesh 18 having a mesh size of 4 mm x 8 mm and an size of iooomm UOOOmm was prepared. As the resin film, a fluorine-based transparent resin film similar to that of Example 1 was used, and the film thickness was 12 μm. In the above-mentioned, both ends of the long side of the plate-shaped body of the mesh plate 19 having a mesh size of 5 mm x 10 mm and a size of 1000 mm x 2000 mm are pre-applied with a double-sided adhesive tape of 5 mm width (not shown in the figure) at 100110722 11 201239156 Here, the fluorine-based transparent resin film ι of the film thickness of 12 μm was stably attached and attached. The plate-like body of the above-described aluminum mesh 18 is attached to the plate-like body of the above-mentioned stencil 19 to which the fluorine-based transparent resin film 10 is attached, and an aluminum tape 11 having a thickness of 0.2 mm and a width of 20 mm is used for the periphery. And it was fixed by using an aluminum tape forming press machine to make the light-transmitting type film vibration-absorbing sound-absorbing board of Comparative Example 1. Fig. 11 is a plan view showing the state of the light-transmitting type film vibration-absorbing and absorbing panel 20 of Comparative Example 1 as viewed from directly above. FIG. 12 is a cross-sectional view taken along line d-d of FIG. 11. 11 and 12 are explanatory views, and the size and shape of the constituents are not actual ratios. The light-transmitting type film vibration-absorbing sound-absorbing plate of Comparative Example 1 was attached to the frame 13 similar to that of the first embodiment shown in Figs. 7 to 9, and the sound absorption rate of the residual chamber method was measured in the same manner as in the example j. The results are compared with Examples and Example 2 and shown in Table 1. Further, the results of obtaining the optical transmittance in the same manner as in the examples were compared with those of the first embodiment and the second embodiment and shown in Table 2. (Example 2) A zigzag arrangement in which the thickness was 1 · 5 πππι, the opening diameter was 1 〇 mm, the center-to-center distance (pitch) of the opening was 16 mm, and the opening angle was 6 准备 degrees, and the aperture ratio was prepared. A polycarbonate transparent open-cell resin sheet 21 of 35°/〇 and a size of 1〇〇〇minx2〇〇〇nmi. As the resin film, a fluorine-based transparent resin film .10 similar to that of Example i was used, and the film thickness was 12 μm. In the above-mentioned long-side both ends of the polycarbonate transparent open-hole resin sheet 21 having a size of 1000 mm x 2000 mm, a double-sided adhesive tape of 5 mm width is attached in advance (not shown in the figure, 100110722 ^ 201239156), and the above The fluorine-based transparent resin film 10 having a film thickness of 12 μm is stably attached and attached. A polycarbonate transparent open-cell resin sheet 22 of the same type as described above was attached to the above-mentioned polycarbonate transparent open-cell resin sheet 21 to which the fluorine-based transparent resin film 10 was attached, and the opening position was 10 mm, respectively. The polycarbonate transparent perforated resin sheet 22 which was cut in the longitudinal direction of 5 mm was cut in the same manner as in the first embodiment, and an aluminum tape 11 having a thickness of 0.2 mm and a width of 20 mm was used for the periphery, and a pressure-sensitive adhesive was formed using an aluminum tape. The machine is fixed. Fig. 13 is a plan view showing a state in which the light-transmitting type film vibration-absorbing acoustic panel 23 of the second invention of the present invention is viewed from above. FIG. 14 is a cross-sectional view taken along line e-e of FIG. 13 and 14 are explanatory views, and the size and shape of the constituents are not in proportion. Here, with reference to Fig. 15, the relationship between the opening positions of the two sheets of the open-cell resin sheets in the same pattern for the positions of the holes of the two transparent opening resin sheets in the longitudinal direction with the opening diameter (10 mm) - half (5 mm) shifted in the longitudinal direction will be described. . Fig. 15 is a view showing the ratio A (°/〇) of the area Q of the opening portion common to the two aperture plates when the aperture area S on the sound source side is overlapped with the two aperture plates. (a) is a plan view showing an overlapping state of two perforated plates viewed from the sound source side, and (b) is a f-f cross-sectional view. When the area of the opening (circle) on the sound source side is set to Η, the opening portion overlapping the opening (circle) on the opposite side of the sound source, that is, the area of the opening portion common to the upper and lower opening plates (22 and 21) is set to Κ, the area ratio of the common part of the perforated plate can be calculated by Α(%)=Κ+Ηχ100. 100110722 13 201239156 In the present invention, the above-mentioned area ratio A is 0% (the common portion of the two-piece perforated plate is not penetrated), and it is confirmed that the area ratio A is 1% (2 pieces) in the range of ~70%. The sound absorbing characteristics are good in the state of the hole position, but it is more suitable in the range of 5% to 60%. That is, the calculated area ratio A of the present embodiment is 39.2%. The light-transmitting type film vibration-absorbing sound absorbing plate 23 of the second embodiment was attached to the same frame body 13 as that of the first embodiment shown in Figs. 7 to 9, and the sound absorption rate of the reverberation chamber method was measured in the same manner as in the first embodiment. As a result, it was compared with Example 1 and Comparative Example 1 and shown in Example 2 of Table 1. Comparing Example 2 of Table 1 with Comparative Example 1 and Example 1 of the conventional product, it is clear that the light-transmitting type film vibration-absorbing acoustic panel 23 of the second embodiment of the present invention also exhibits good sound absorbing characteristics. Further, the results of obtaining the light transmittance in the same manner as in Example 1 are shown in Table 2 °. Comparing Example 2 of Comparative Table 2 with Comparative Example 1 of the conventional product, it is clear that the second embodiment is adopted. The light-transmitting film vibration-absorbing sound-absorbing panel 23' of the present invention clearly shows that the light transmittance can be improved by about 73%. As shown in Table 2, the light-transmitting type film vibration-absorbing sound-absorbing sheets (丨2 and 23) of the present invention are the same as those of the comparative example 1, that is, two sheets of aluminum sheets which were previously subjected to flattening processing as shown in Fig. 11 The light-transmitting type film vibration-absorbing sound-absorbing panel 20 of (18 and 19) further increases the light transmittance. (Example 3) A polycarbonate transparent open-cell resin sheet 9 having a size of 1000 mm x 2000 mm shown in Fig. 16 was prepared in the same manner as in Example 1. As shown in Fig. 16 and Fig. 17 of the f-f 100110722 14 201239156, a double-sided adhesive tape 24 of 5 mm width is attached to the ? 2 portion of the transparent open-cell resin sheet 9 of the polycarbonate. (The two ends of the long side of the transparent opening resin sheet are also fixed by a double-sided tape of 5 widths as in the above-described embodiment i, but are omitted in the drawing.) On the polycarbonate transparent opening resin board 9, The fluorine-based transparent resin film 10 having a film thickness of 12 μm is stably attached and attached, and as shown in the item 3, at least one place between the gas-based transparent resin film 1〇 and the i-piece polycarbonate transparent opening resin plate 9 is used. The light-transmitting film vibration-absorbing sound-absorbing plate 25 of the third invention of the present invention which improves the sound absorbing property by improving the adhesion property is fixed by the adhesive material. Fig. 16 is a plan view showing a state in which the light-transmitting type diaphragm vibration absorbing panel 25 of the third invention of the present invention is viewed from above. 17 is a cross-sectional view taken along line f-f of FIG. 16. Both Fig. 16 and Fig. π are explanatory diagrams, and the size and shape of the constituents are not in proportion. The light-transmitting type film vibration-absorbing sound-absorbing plate 25 of the third embodiment is attached to the same frame 13' as that of the first embodiment shown in Figs. 7 to 9 as shown in Fig. 18, and the same method as in the embodiment The results of measuring the sound absorption rate of the reverberation chamber method are shown in Example 3 of Table 3 in comparison with Example 1. The fluorine-based transparent resin film of Table 3 was partially fixed to the polycarbonate transparent apertured resin sheet 9 by using a double-sided adhesive tape 24 of 5 mm width, and it was indeed the case of Example 1 which was not partially fixed. Shows good sound absorption characteristics. (Embodiment 4) (Polica/Polica of Application No. 3: double-sided tape) 100110722 15 201239156 A further light-transmitting type film vibration-absorbing acoustic panel 27 according to the third invention of the present invention will be described. In the same manner as in Example 2, a polycarbonate resin transparent open-cell resin sheet η having a size shown in Fig. 19 was prepared. As shown in Fig. 2 of Fig. 9 and Fig. 2 of the g g sectional view, a double-sided adhesive tape μ of 5 mm width is attached to two places of the transparent open-cell resin plate made of polycarbonate. (The long sides of both sides of the transparent opening resin sheet are also fixed by the two-side belts of the leg width as in the above embodiment, but are omitted in the drawing.) On the polycarbon-made transparent opening resin sheet 21 The film thickness is called the gas-based transparent resin film of the claw! 〇 Stable installation and attachment As shown in the application item 3, at least the 'between the viscous material' between the stencil of the Moonlight Moonlight Film 10 and the i-Piece Polycarbonate-made transparent aperture resin plate 9 Further, the light-transmitting type film vibration-absorbing sound-absorbing panel 27 of the third invention of the present invention which improves the sound absorbing characteristics by improving the adhesion property is prepared. Fig. 19 is a plan view showing a state in which the light-transmitting type film vibration-absorbing and absorbing panel 27 of the third invention of the present invention is viewed from above. Further, Fig. 20 is a cross-sectional view taken along line g-g of Fig. 19. 19 and 20 are explanatory views, and the size and shape of the constituents are not actual ratios. The light-transmitting type film vibration-absorbing and absorbing plate 27 of the fourth embodiment was attached to the frame 13 (the drawing surface) similar to that of the third embodiment, and the sound-absorbing rate of the residual room method was measured in the same manner as in the second embodiment. Compared with Example 2, it is shown in Table 3. The fluorine-based transparent resin film of Table 3 was partially fixed to the polycarbonate transparent open-cell resin sheet 9 by using a double-sided adhesive tape 24 of 5 mm width, and was carried out in an example of 100110722 16 201239156. The case of Example 2 shows good sound absorbing characteristics. Here, the reason why the sound absorbing characteristics are improved by partially fixing the polycarbonate transparent opening resin sheet 9 by using the double-sided adhesive tape 24 will be described. In the case where the sound absorption rate is measured by the reverberation chamber method, as shown in FIG. 10 and FIG. 18, the light-transmitting film vibration-absorbing sound-absorbing panels (12, 23) are attached to the reverberation chamber in a state of being placed on the casing 13. Bed surface. Therefore, a gap is formed between the aluminum mesh 8 shown in the cross-sectional view of Fig. 6 and the polycarbonate transparent resin plate 9 due to the bending. When the gap is increased, the sound absorbing mechanism of the light-transmitting type film vibration absorbing plate shown in FIG. 4 is subjected to the sound absorbing action b described above, that is, "if the fluorine-based transparent resin film 5 vibrates, the film surface and the film The sound energy generated by the surface friction of the stencil 4 and the transparent aperture resin sheet 6 which have been subjected to the flattening process is converted into heat energy, and as a result, the energy of the sound is absorbed and the sound is absorbed. Then, in the case where the above-mentioned "the gap between the aluminum mesh 8 and the transparent transparent resin plate 9 made of polycarbonate is caused by the bending" occurs, by using the method of the third invention of the present invention, "a transparent resin film is used. At least one place between the one transparent transparent resin sheet and the light-transmitting type film vibration-absorbing sound-absorbing plate which is fixed by the adhesive material and which improves the sound absorbing property by improving the sound absorbing property can improve the sound absorbing characteristics. Next, as shown in Fig. 21, the number of the fluorine-based transparent resin film 10 may be on the lower side of the polycarbonate transparent opening resin sheet on the lower side (the opposite side of the sound source), even if a plurality of sheets are used. This achieves a slight improvement in sound absorption characteristics. Further, in the transparent optical film vibration absorbing panels (12 and 23 and 25) of the embodiment 1 to the embodiment 3, as shown in Fig. 21, the transparent open-cell resin plate made of polycarbonate on the lower side is also shown in Fig. On the lower side of (9 and 21), even if a single piece of the fluorine-based transparent resin film 10 is used, it may be used. 100110722 18 201239156 [Table 1] The present invention is a light-transmissive film vibration-absorbing sound-absorbing plate and a conventional product, and a plastic product is formed at an angling age frequency (Hz). Example Aluminium stencil and transparent open-cell resin plate Comparative Example 1 | g plate net (a conventional product) Example 2 Transparent opening resin plate and resin plate AM-100mm 0.30 12/zm resin film 12em resin film air layer = 100mm air layer = 1 〇〇 mm
630 0.86 0.83 800 0.85 0.76 1000 0.80 0.84 0.82 1250 0.81 0.81 1600 0.72 0.70 2000 2500 0.60 0.55 0.58 0.55630 0.86 0.83 800 0.85 0.76 1000 0.80 0.84 0.82 1250 0.81 0.81 1600 0.72 0.70 2000 2500 0.60 0.55 0.58 0.55
0.58 3150 0.38 0.48 0.45 4000 0.28 0.34 0.40 [實施例1]透光型膜振動吸音板之構成 鋁製板網（10-20)/12 // m氟系透明樹脂薄膜 /聚碳酸酯製透明開孔樹脂板 [比較例1 ]透光型膜振動吸音板之構成（習知品） 鋁製板網（4-8)/12// m氟系透明樹脂薄膜 /鋁製板網（5-10) [實施例2]透光型膜振動吸音板之構成 聚碳酸酯製透明開孔樹脂板A2# m氟系透明樹脂薄膜 /聚碳酸酯製透明開孔樹脂板 100110722 19 201239156 [表2] 本發明之透光型膜振動吸音板與習知品之光線穿透率比較 透光型膜振動吸音板 實施例1 比較例1 (習知品） 實施例2 光線穿透率（％) 62 41 71 [實施例1]透光型膜振動吸音板之構成 鋁製板網（10-20)/12// m氟系透明樹脂薄膜 /聚碳酸酯製透明開孔樹脂板 [比較例1]透光型膜振動吸音板之構成（習知品） 鋁製板網（4-8)/12 /z m氟系透明樹脂薄膜 /鋁製板網（5-10) [實施例2]透光型膜振動吸音板之構成 聚碳酸酯製透明開孔樹脂板/12 e m氟系透明樹脂薄膜 /聚碳酸酯製透明開孔樹脂板 100110722 20 201239156 [表3] 無巧用兩面膠帶之樹脂薄膜部分固定之殘響室法吸音率比較 實施例1 實施例3 實施例2 鋁板網與透明 開孔樹脂板 銘板網與透明 開孔樹脂板 頻率 (Hz) 無兩面膠帶 部分固定 有兩面膠帶 部分固定 透明開孔樹脂板與 透明開孔樹脂板 無兩面膠帶 部分固定 實施例4 透明開孔樹脂板與 月開孔樹脂板 12"m 樹脂薄膜 12仁m 樹脂薄膜 有兩面膠帶 邹分固定 12/zm 樹脂薄臈 空氣層=100mm 空氣層=100mm 空氣層=100rmn 12/zm 樹脂薄膜 ^氣層=100mm0.58 3150 0.38 0.48 0.45 4000 0.28 0.34 0.40 [Example 1] Composition of light-transmitting film vibration-absorbing sound-absorbing plate Aluminum mesh (10-20)/12 // m fluorine-based transparent resin film/polycarbonate transparent opening Resin plate [Comparative Example 1] Composition of light-transmitting film vibration-absorbing sound-absorbing plate (available product) Aluminum plate mesh (4-8)/12// m fluorine-based transparent resin film/aluminum plate mesh (5-10) [Implementation Example 2] Structure of a light-transmitting film vibration-absorbing sound-absorbing plate Polycarbonate-made transparent resin plate A2# m-fluorine-based transparent resin film/polycarbonate transparent opening resin plate 100110722 19 201239156 [Table 2] Light Transmissive Sound Absorbing Plate and Light Transmittance of Light Transmissive Membrane Sound Absorbing Plate Example 1 Comparative Example 1 (Conventional Product) Example 2 Light transmittance (%) 62 41 71 [Example 1] Light transmission The composition of the film vibration-absorbing sound-absorbing plate is made of aluminum plate mesh (10-20)/12// m fluorine-based transparent resin film/polycarbonate transparent opening resin plate [Comparative Example 1] Composition of light-transmitting film vibration-absorbing sound-absorbing plate (Knowledge) Aluminum plate mesh (4-8)/12 /zm fluorine-based transparent resin film/aluminum plate mesh (5-10) [Example 2] Light-transmitting film vibration Structure of sound absorbing panel Polycarbonate transparent opening resin sheet / 12 em fluorine-based transparent resin film / polycarbonate transparent opening resin board 100110722 20 201239156 [Table 3] Inadvertently fixed by resin film of double-sided tape Case Compartment Sound Absorption Ratio Comparison Example 1 Example 3 Example 2 Aluminum plate mesh and transparent aperture resin plate Mingban mesh and transparent aperture resin plate frequency (Hz) No double-sided tape portion fixed with double-sided tape portion Fixed transparent aperture resin plate Part 4 is fixed with a transparent open-cell resin plate without a double-sided tape. Example 4 Transparent open-cell resin plate and moon-opening resin plate 12"m Resin film 12-n resin film has two-sided tape Zou-Zun fixed 12/zm resin thin air layer= 100mm air layer = 100mm air layer = 100rmn 12/zm resin film ^ gas layer = 100mm
0.36 [實施例1]與[實施例2]之透光型膜振動吸音板之構成參照[表1] [實施例3]透光型膜振動吸音板之構成 鋁製板網(10-20)/12 m氟系透明樹脂薄膜(固定兩面膠帶） /聚碳酸酯製透明開孔樹脂 [實施例4]透光型膜振動吸音板之構成 聚碳酸酯製透明開孔板/12 " m氟系透明樹·脂薄膜(固定兩面膠帶） /聚碳酸酯製透明開孔板 100110722 21 201239156 (產業上之可利用性） .經由使用本發明之透光型膜振動吸音板，不僅具有吸音特 性’且視需要透過吸音板，具有更高之透光性及透視性之利 用於道路·鐵路用之隔音壁的可能性。 【圖式簡單說明】 圖1係示出板網之一個網孔的正面圖。 圖2係圖1之a-a剖面圖。 圖3係說明對圖2狀態之板網已施行平坦化加工的狀態 圖。 圖4係說明透光型膜振動吸音板的吸音機構圖。 圖5係本發明第一發明之透光型膜振動吸音板12的平面 圖。 圖6係圖5的a-a剖面圖。 圖7係由正上方俯視計測殘響室法吸音率所用之框體圖。 圖8係圖7的b-b剖面圖。 圖9係圖7的c-c剖面圖。 圖1〇係不出搭載有本發明透光型膜振動吸音板12之狀態 17的圖。 圖11係比較例1之透光型膜振動吸音板加的平面圖。 圖12係圖11的d_d剖面圖。 圖13係本發明第二發明之透光型膜振動吸音板 23的平面 圖。 100110722 22 201239156 圖14係圖13的e-e剖面圖。 圖15係用以說明關於2片開孔樹脂板之開口面積關係的 圖。 圖16係本發明第三發明之透光型膜振動吸音板25的平面 圖。 圖17係圖16的f-f剖面圖。 圖18係示出搭載有本發明透光型膜振動吸音板25之狀態 26的圖。 圖19係本發明第三發明之透光型膜振動吸音板27的平面 圖。 圖20係圖19的g-g剖面圖。 圖21係使用2片氟系透明樹脂薄膜10之情況的說明圖。 【主要元件符號說明】 1 板網的一個網孔 2 透明樹脂薄膜 3 透光型膜振動吸音板 4 已施行平坦化加工之板網 5 氟系透明樹脂薄膜 6 透明開孔樹脂板 7 透明樹脂製遮音板 8 鋁製板網 9 聚碳酸酯製透明開孔樹脂板 100110722 23 2012391560.36 [Example 1] and [Example 2] The configuration of the light-transmitting type film vibration-absorbing sound-absorbing plate is referred to [Table 1] [Example 3] The structure of the light-transmitting type film vibration-absorbing sound-absorbing plate (10-20) /12 m fluorine-based transparent resin film (fixed double-sided tape) / polycarbonate transparent open-cell resin [Example 4] Light-transmitting film vibration-absorbing sound-absorbing plate composition Polycarbonate transparent perforated plate / 12 " m fluorine Transparent tree and fat film (fixed double-sided tape) / polycarbonate transparent perforated plate 100110722 21 201239156 (industrial availability). By using the light-transmitting type film vibration-absorbing sound-absorbing plate of the present invention, not only sound-absorbing characteristics' And, if necessary, through the sound absorbing panel, it has the possibility of utilizing the sound insulating wall for roads and railways with higher light transmittance and transparency. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front view showing a mesh of a mesh. Figure 2 is a cross-sectional view taken along line a-a of Figure 1. Fig. 3 is a view showing a state in which the stencil of the state of Fig. 2 has been subjected to planarization processing. Fig. 4 is a view showing a sound absorbing mechanism of a light transmitting type diaphragm vibration absorbing panel. Fig. 5 is a plan view showing a light-transmitting type film vibration-absorbing sound absorbing panel 12 of the first invention of the present invention. Figure 6 is a cross-sectional view taken along line a-a of Figure 5. Fig. 7 is a frame diagram used for measuring the sound absorption rate of the reverberation chamber from a top view. Figure 8 is a cross-sectional view taken along line b-b of Figure 7. Figure 9 is a cross-sectional view taken along line c-c of Figure 7. Fig. 1 is a view showing a state 17 in which the light-transmitting type diaphragm vibration absorbing panel 12 of the present invention is mounted. Fig. 11 is a plan view showing the addition of the light-transmitting type film vibration-absorbing acoustic panel of Comparative Example 1. Figure 12 is a cross-sectional view taken along line d_d of Figure 11. Figure 13 is a plan view showing a light-transmitting type film vibration-absorbing and absorbing panel 23 of the second invention of the present invention. 100110722 22 201239156 FIG. 14 is a cross-sectional view taken along line e-e of FIG. Fig. 15 is a view for explaining the relationship of the opening areas of the two apertured resin sheets. Fig. 16 is a plan view showing a light-transmitting type film vibration-absorbing and absorbing panel 25 according to a third invention of the present invention. Figure 17 is a cross-sectional view taken along line f-f of Figure 16; Fig. 18 is a view showing a state 26 in which the light-transmitting type film vibration-absorbing sound absorbing panel 25 of the present invention is mounted. Fig. 19 is a plan view showing a light-transmitting type film vibration-absorbing and absorbing panel 27 according to a third invention of the present invention. Figure 20 is a cross-sectional view taken along line g-g of Figure 19. Fig. 21 is an explanatory view showing a state in which two fluorine-based transparent resin films 10 are used. [Description of main component symbols] 1 One mesh of the mesh 2 Transparent resin film 3 Transmissive film vibration-absorbing plate 4 Plate that has been flattened 5 Fluorine-based transparent resin film 6 Transparent open-hole resin plate 7 Transparent resin Sound-absorbing panel 8 Aluminum mesh 9 Polycarbonate transparent opening resin plate 100110722 23 201239156
ίο 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 A BP 氟系透明樹脂薄膜 鋁製膠帶 實施例1之透光型膜振動吸音板 框體 中木條 透明聚碳酸酯製遮音板 框部材 搭載有透光型膜振動吸音板12之狀態 網孔大小4mmx8mm的紹製板網 網孔大小5mmx 10mm的銘製板網 比較例1之透光型膜振動吸音板 聚碳酸酯製透明開孔樹脂板 聚碳酸酯製透明開孔樹脂板 實施例2之透光型膜振動吸音板 兩面接黏膠帶 實施例3之透光型膜振動吸音板 搭載有透光型膜振動吸音板25之狀態 實施例4之透光型膜振動吸音板 具有2片氟系透明樹脂薄膜10的透光型膜振動吸 音板 背後空氣層 背壓 100110722 24 201239156 G 音源 Η 開口部（圓）的面積 . K 上下之開孔板(22與21)共通之開口部分的面積 S 音波 Τ t 板網之原厚 板網之平坦化後厚度 100110722 25ο 11 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 A BP Fluorine-based transparent resin film Aluminum tape Example 1 Translucent film vibration sound absorbing panel frame made of wood transparent polycarbonate The sound-shielding frame member is equipped with a light-transmitting film vibration-absorbing sound-absorbing plate 12 in a state of mesh size of 4 mm x 8 mm. The mesh size of the mesh is 5 mm x 10 mm. The mesh plate of the comparative example 1 is a light-transmitting film vibration-absorbing sound-absorbing plate made of polycarbonate. Transparent open-cell resin plate polycarbonate transparent open-cell resin plate Example 2 light-transmitting film vibration-absorbing sound-absorbing plate double-sided adhesive tape The light-transmitting film vibration-absorbing sound-absorbing plate of the third embodiment is equipped with a light-transmitting film vibration-absorbing sound-absorbing plate 25 State of the Invention The light-transmitting type film vibration-absorbing sound-absorbing plate of the embodiment 4 has two fluorine-based transparent resin films 10, and the air-back layer of the light-transmitting film vibration-absorbing sound-absorbing plate is back-pressured. 100110722 24 201239156 G Source Η Area of the opening (circle). K The area of the opening portion common to the upper and lower perforated plates (22 and 21) S. The thickness of the original thick plate net of the plate net is 100110722 25