JP4231792B2 - 中空構造板、その製造方法及びその製造装置 - Google Patents
中空構造板、その製造方法及びその製造装置 Download PDFInfo
- Publication number
- JP4231792B2 JP4231792B2 JP2003578131A JP2003578131A JP4231792B2 JP 4231792 B2 JP4231792 B2 JP 4231792B2 JP 2003578131 A JP2003578131 A JP 2003578131A JP 2003578131 A JP2003578131 A JP 2003578131A JP 4231792 B2 JP4231792 B2 JP 4231792B2
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- Prior art keywords
- hollow
- pin
- hollow structure
- plate
- embossing roller
- Prior art date
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
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- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
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- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Acoustics & Sound (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Electromagnetism (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Multimedia (AREA)
- Toxicology (AREA)
- Laminated Bodies (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Building Environments (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Panels For Use In Building Construction (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Glass Compositions (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Description
前記減圧チャンバの前部側開口部の上下内側には、前記エンボスローラの周面における接触点方向に向けて傾斜状とした一対の導入部プレートが設けられると共に、該導入部プレートの間には断面三角形状の加熱用ヒータが設けられ、前記二枚の樹脂シートを、前記前部側開口部から、前記一対の導入部プレートと前記加熱用ヒータとの間を通して前記両エンボスローラの間へ導入し、
前記エンボスローラとして、そのピンが、円錐台形状をなし、前記エンボスローラの周面に占める下底総面積の割合が0.3以上0.58以下の範囲内であって、かつ、該ピンの中心軸を含む鉛直面におけるピン側面の立ち上げ角度が50度から70度の範囲内であるものを用いることを特徴とする。
前記前部側開口部の上下内側に配置され、前記エンボスローラの周面における接触点方向に向けて傾斜状とした一対の導入部プレートを更に備え、
前記加熱用ヒータは、前記導入部プレートの間に配置された断面三角形状のヒータであり、
前記エンボスローラのピンは、円錐台形状をなし、前記エンボスローラの周面に占める下底総面積の割合が0.3以上0.58以下の範囲内であって、かつ、該ピンの中心軸を含む鉛直面におけるピン側面の立ち上げ角度が50度から70度の範囲内であることを特徴とする。
上底11dの直径を2mm、下底11eの直径8mm、高さを5mmとしたピン11bを、ピン間隔(立ち上げ部11gの間隔)を2mmで千鳥格子状に配置させた幅70mm・長さ200mmの真空成形板上に、溶解状態の厚み0.5mm、目付500g/m2のホモプロピレンシート(融点165℃、軟化点120℃)を載せ、オフラインにて真空成形を行った。得られた二枚のエンボスシートを超音波融着機を用いてピン同士を接着させた。これを芯材とし、この表裏に厚み0.25mm、目付250g/m2のホモプロピレンシートを面材として貼り合わせた。こうして、厚み10.5mm、目付1500g/m2の中空構造板を得た後、JIS K7203に準拠して曲げ試験を行った。なお、曲げ弾性勾配については、上記曲げ測定により得られた荷重−たわみ曲線の直線部分から1cm撓んだ時の荷重を求め、その曲げ弾性勾配とした。
上底11dの直径を2mm、下底11eの直径6mmと、高さを5mmとしたピン11bを、ピン間隔を2mmで千鳥格子状に配置させた幅70mm・長さ200mmの真空成形板を使用し、実施例1と同様の方法で中空構造板を得た後、曲げ試験を行った。
上底11dの直径を2mm、下底11eの直径6mm、高さを5mmとしたピン11bを、ピン間隔を4mmで千鳥格子状に配置させた幅70mm・長さ200mmの真空成形板を使用し、実施例1と同様の方法で中空構造板を得た後、曲げ試験を行った。
上底11dの直径を4mm、下底11eの直径8mmと、高さを5mmとしたピン11bを、ピン間隔を2mmで千鳥格子状に配置させた幅70mm・長さ200mmの真空成形板を使用し、実施例1と同様の方法で中空構造板を得た後、曲げ試験を行った。
上底11dの直径を2mm、下底11eの直径10mmと、高さを5mmとしたピン11bを、ピン間隔を2mmで千鳥格子状に配置させた幅70mm・長さ200mmの真空成形板を使用し、実施例1と同様の方法で中空構造板を得た後、曲げ試験を行った。
ピンに段差をつけた形状とする。上底11d、中段の内側、中段の外側、下底11eの直径を順に1.5mm、3mm、5mm、6mmとし、高さを5mmとしたピン11bを、ピン間隔を2mmで千鳥格子状に配置させた幅70mm・長さ200mmの真空成形板を使用し、実施例1と同様の方法で中空構造板を得た後、曲げ試験を行った。
上底11dの直径を4mm、下底11eの直径6mm、高さを5mmとしたピン11bを、ピン間隔を4mmで千鳥格子状に配置させた幅70mm・長さ200mmの真空成形板を使用し、実施例1と同様の方法で中空構造板を得た後、曲げ試験を行った。
上底11dの直径を2mm、下底11eの直径4mm、高さを5mmとしたピン11bを、ピン間隔を4mmで千鳥格子状に配置させた幅70mm・長さ200mmの真空成形板を使用し、実施例1と同様の方法で中空構造板を得た後、曲げ試験を行った。
上底11dの直径を6mm、下底11eの直径8mm、高さを5mmとしたピン11bを、ピン間隔を4mmで千鳥格子状に配置させた幅70mm・長さ200mmの真空成形板を使用し、実施例1と同様の方法で中空構造板を得た後、曲げ試験を行った。
上底11dの直径を4mm、下底11eの直径6mm、高さを5mmとしたピン11bを、ピン間隔を2mmで千鳥格子状に配置させた幅70mm・長さ200mmの真空成形板を使用し、実施例1と同様の方法で成形したところ、ウェビングが発生し、良好な中空構造板を得られなかった。
上底11dの直径を2mm、下底11eの直径12mm、高さを5mmとしたピン11bを、ピン間隔を2mmで千鳥格子状に配置させた幅70mm・長さ200mmの真空成形板を使用し、実施例1と同様の方法で中空構造板を得た後、曲げ試験を行った。
中空凸部(エンボスピン)上底の直径を2mm、下底の直径を6mm、高さ5.5mmとし、ピン間隔2mmで千鳥格子状に配置させた縦1000mm、横1000mmの真空成形板上に、溶融状態の厚み0.5mm、目付500g/m2のホモポリプロピレンシート(融点165℃、軟化点120℃)を載せ、オフラインにて真空成形を行った。得られた二枚のエンボスシートの凸部先端同士を熱融着させ、これを芯材とし、この表裏に厚み0.25mm、目付250g/m2のホモポリプロピレンシートを面材として貼り合わせた。こうして、総厚み11.5mm、目付1500g/m2の中空構造板を得た後、この中空構造板の一方のライナー部に等ピッチでφ1.0の小孔を開孔率0.36%となるように孔あけ加工した。この一辺1m角の孔あき中空構造板を小型残響室(日東紡音響エンジニアリング製)にて吸音率を測定した。
実施例1と同様の方法で中空構造板を得た後、この中空構造板の一方のライナー部に等ピッチでφ2.5mmの孔を開孔率0.36%となるように孔あけ加工した。この孔あき中空構造板を小型残響室にて吸音率を測定した。
実施例1と同様の方法で中空構造板を得た後、この中空構造板の一方のライナー部に等ピッチでφ4.0mmの孔を開孔率0.36%となるように孔あけ加工した。この孔あき中空構造板を小型残響室にて吸音率を測定した。
実施例1と同様の方法で中空構造板を得た後、この中空構造板の一方のライナー部に等ピッチでφ2.5mmの孔を開孔率0.19%となるように孔あけ加工した。この孔あき中空構造板を小型残響室にて吸音率を測定した。
実施例1と同様の方法で中空構造板を得た後、この中空構造板の一方のライナー部に等ピッチでφ2.5mmの孔を開孔率0.66%となるように孔あけ加工した。この孔あき中空構造板を小型残響室にて吸音率を測定した。
実施例1と同様の方法で孔あき中空構造板を得た後、この中空構造板の孔あき面に、吸音材として厚み6mmの軟質ウレタン発泡体を接着した積層中空構造板を作製し、小型残響室にて吸音率を測定した(t=1→厚1mm)。
実施例2と同様の方法で孔あき中空構造板を得た後、この中空構造板の孔あき面に、吸音材として厚み6mmの通気性表皮材と軟質ウレタン発泡体(t=5)を接着した積層中空構造板を作製し、小型残響室にて吸音率を測定した。
実施例1と同様の方法で中空構造板を作製し、小型残響室にて吸音率を測定した。
厚み6mmの軟質ウレタン発泡体について、小型残響室にて吸音率を測定した。
実施例1と同様の方法で中空構造板を得、孔を開けなかった以外は実施例6と同じ条件で発泡材からなる吸音材を貼り合わせて積層中空構造板を作製し、残響室法にて吸音率を測定した。比較例3の各周波数における吸音率を表2に示す。
Claims (3)
- 二枚の熱可塑性樹脂シートに突設された複数の中空凸部同士を突き合わせた状態で溶着してなる中空構造板であって、
前記中空凸部は、円錐台形状をなし、前記中空凸部の周面に占める下底総面積の割合が0.3以上0.58以下の範囲内であって、かつ、該中空凸部の中心軸を含む鉛直面における中空凸部側面の立ち上げ角度が50度から70度の範囲内であることを特徴とする中空構造板。 - 二枚の熱可塑性樹脂シートを減圧チャンバ内に導入し、該減圧チャンバ内に回転可能に配置された上下一対のエンボスローラの周面にそれぞれの樹脂シートを吸着させて両エンボスローラに突設されたピン形状に応じて各樹脂シートに多数の中空凸部を形成するとともに、両エンボスローラの接線位置で前記中空凸部の端面同士を連続して熱融着することにより、中空構造板を製造する方法であって、
前記減圧チャンバの前部側開口部の上下内側には、前記エンボスローラの周面における接触点方向に向けて傾斜状とした一対の導入部プレートが設けられると共に、該導入部プレートの間には断面三角形状の加熱用ヒータが設けられ、前記二枚の樹脂シートを、前記前部側開口部から、前記一対の導入部プレートと前記加熱用ヒータとの間を通して前記両エンボスローラの間へ導入し、
前記エンボスローラとして、そのピンが、円錐台形状をなし、前記エンボスローラの周面に占める下底総面積の割合が0.3以上0.58以下の範囲内であって、かつ、該ピンの中心軸を含む鉛直面におけるピン側面の立ち上げ角度が50度から70度の範囲内であるものを用いることを特徴とする中空構造板の製造方法。 - 内部が減圧吸引される減圧チャンバと、この減圧チャンバの前部側開口部に周面を向けた状態で該減圧チャンバ内に回転可能に軸受支持され、かつそれぞれに設けたピンが接線位置で互いに二枚の熱可塑性樹脂シートを介して接触する上下一対のエンボスローラと、前部側開口部に配置された加熱用ヒータとを備えた中空構造板の製造装置において、
前記前部側開口部の上下内側に配置され、前記エンボスローラの周面における接触点方向に向けて傾斜状とした一対の導入部プレートを更に備え、
前記加熱用ヒータは、前記導入部プレートの間に配置された断面三角形状のヒータであり、
前記エンボスローラのピンは、円錐台形状をなし、前記エンボスローラの周面に占める下底総面積の割合が0.3以上0.58以下の範囲内であって、かつ、該ピンの中心軸を含む鉛直面におけるピン側面の立ち上げ角度が50度から70度の範囲内であることを特徴とする中空構造板の製造装置。
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JPWO2020065716A1 (ja) * | 2018-09-25 | 2021-09-09 | MT−Tec合同会社 | 自動車用遮音材 |
JP7343516B2 (ja) | 2018-09-25 | 2023-09-12 | 寿屋フロンテ株式会社 | 自動車用遮音材 |
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DE60334084D1 (de) | 2010-10-21 |
JPWO2003080326A1 (ja) | 2005-07-21 |
US20050126852A1 (en) | 2005-06-16 |
ATE480395T1 (de) | 2010-09-15 |
WO2003080326A1 (fr) | 2003-10-02 |
JP4565028B2 (ja) | 2010-10-20 |
US7754312B2 (en) | 2010-07-13 |
JP2008260309A (ja) | 2008-10-30 |
EP1491327A4 (en) | 2009-01-21 |
JP2009019495A (ja) | 2009-01-29 |
CN1281404C (zh) | 2006-10-25 |
AU2003227222A1 (en) | 2003-10-08 |
US20080128080A1 (en) | 2008-06-05 |
EP1491327A1 (en) | 2004-12-29 |
US20080113128A1 (en) | 2008-05-15 |
CN1649724A (zh) | 2005-08-03 |
JP4802225B2 (ja) | 2011-10-26 |
EP1491327B1 (en) | 2010-09-08 |
US7878229B2 (en) | 2011-02-01 |
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