JP3918699B2 - Hollow panel - Google Patents

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Publication number
JP3918699B2
JP3918699B2 JP2002274727A JP2002274727A JP3918699B2 JP 3918699 B2 JP3918699 B2 JP 3918699B2 JP 2002274727 A JP2002274727 A JP 2002274727A JP 2002274727 A JP2002274727 A JP 2002274727A JP 3918699 B2 JP3918699 B2 JP 3918699B2
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Prior art keywords
hollow
panel
solid
hollow part
partition wall
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JP2002274727A
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JP2004108084A (en
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廉人 棚瀬
哲 小林
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Yamaha Corp
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Yamaha Corp
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Priority to JP2002274727A priority Critical patent/JP3918699B2/en
Application filed by Yamaha Corp filed Critical Yamaha Corp
Priority to CNB031585698A priority patent/CN100333885C/en
Priority to DE60327587T priority patent/DE60327587D1/en
Priority to CA002441749A priority patent/CA2441749C/en
Priority to EP03021112A priority patent/EP1400636B1/en
Priority to US10/666,431 priority patent/US20040074206A1/en
Priority to CNU03208045XU priority patent/CN2673986Y/en
Publication of JP2004108084A publication Critical patent/JP2004108084A/en
Priority to HK04105486A priority patent/HK1062546A1/en
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Publication of JP3918699B2 publication Critical patent/JP3918699B2/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • 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
    • E04C2/34—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 composed of two or more spaced sheet-like parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • 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
    • E04B1/84—Sound-absorbing elements
    • E04B1/86—Sound-absorbing elements slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • 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
    • E04C2/34—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 composed of two or more spaced sheet-like parts
    • E04C2/36—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 composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • 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
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • 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
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8461—Solid slabs or blocks layered
    • E04B2001/8471—Solid slabs or blocks layered with non-planar interior transition surfaces between layers, e.g. faceted, corrugated
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • 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
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)
  • Panels For Use In Building Construction (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は中空パネルに係り、特に、壁材、床材、天井材等の建築材料として利用することに適した中空パネルに関する。
【０００２】
【従来の技術】
従来より、建築用の各種パネルにおいては、内部に中空部を備えた中空パネルが採用されている。この中空パネルによれば、断熱及び軽量化を達成することができる。ここで、公知の中空パネルとしては、表面を形成する二枚の平板間に、端面形状が波形となる二枚の波板をサンドイッチして一枚のパネルとし、前記波形に対応した中空部を横方向に沿って配した中空パネルが知られている（例えば、特許文献１参照）。この特許文献１記載の中空パネルによれば、二枚の波板の凸部同士が突き合うよう背中合わせに重ねた状態で平板間にサンドイッチされる構成となるため、パネル完成状態では、断面積の異なる中空部を内包した状態となり、特定の周波数で生じ得るコインシデンス効果の遮音欠損を改善することが可能となる。
【０００３】
【特許文献１】
特開平７−２１４７１２号公報
【０００４】
【発明が解決しようとする課題】
しかしながら、前記特許文献１に記載された中空パネルは、二枚の波板を用いて中空部の断面積を相違させる構成となっているため、中空パネル全体としての厚みを増してしまうという不都合がある他、部品点数の増加に伴うコスト的な負担が不可避となり、また、波板同士の接合が必要となって作業工数も増大するという不都合を招来するものとなる。
【０００５】
【発明の目的】
本発明は、このような不都合に着目して案出されたものであり、その目的は、パネル厚を抑制しつつ遮音性能を効果的に発揮できるようにするとともに、部品点数の削減を通じてパネル形成作業の省力化と製造コストの低廉化を達成することのできる中空パネルを提供することにある。
【０００６】
【課題を解決するための手段】
前記目的を達成するため、本発明は、パネルの内部に、略同一平面内に並ぶ複数の中空部と、中実部とが形成されてなる中空パネルであって、質量若しくは剛性を部分的に異ならせ、前記中実部は、複数の中空部に跨って各中空部の一部に中実部形成体を挿入したり、複数の中空部に跨って各中空部の一部を中実としたりすることにより形成される、という構成を採っている。
具体的には、前記中空部は、断面積が相違する中空部を含んで構成や、中空部の幅を形成する隔壁部の相互離間距離が相違する中空部を含んでいる構成、或いは、中空部間に位置する隔壁部の厚みが相違する隔壁部を含んでいる構成、若しくは、一又は複数の中空部に跨って中実部が設けられている構成を採っている。このような構成によれば、中空パネルの特定の領域における面密度すなわち剛性が不均一となる中空パネルとなる。従って、例えば、断面積が均一となる複数列の中空部を備えた中空パネルの場合では、中実で面密度が均一なパネルと同様に、特定周波数でパネルの屈曲波と音波の波長が一致するコインシデンス効果により遮音欠損が生じるが、本発明の中空パネルによれば、パネルの共振周波数がパネル面内で一定でなく分散されるため、共振によって発生する遮音欠損を抑制することが可能となる。しかも、中空部は、略同一平面内に並ぶように構成されているため、中空パネルの厚みも抑制したものとすることができる。
【０００７】
【発明の実施の形態】
本発明では、前記複数の中空部のうち、特定の中空部の断面積に略対応した断面積を有する中実部形成体を挿入する構成を採用することもできる。このような構成によれば、中空部の任意の箇所に中実部形成体を配置することで面密度を部分的に異ならせることができるようになり、これにより、既存の中空パネルに対しても容易なる適用を実現して遮音欠損を抑制することができる。
【０００８】
本発明における中空パネルは、種々の材料を用いて成形することができるが、例えば、木質エレメントを用いて形成することが好ましい。木質エレメントとしては、木質薄片、木質繊維、木質チップ、木質パーティクル等が例示できる。また、これらの木質エレメントは、型成形によってパネル状に成形することができる。この成形において用いられるバインダーとしては、発泡性バインダー樹脂、非発泡性バインダー樹脂、及びこれらの混合物の何れも採用することができる。
【０００９】
前記型成形による中空パネルの製造は、型内に木質エレメントを一定量散布した後、中空部の形状に応じた中子を略同一平面内で横並びに配置し、その上から木質エレメントを一定量散布した状態で熱圧プレスを行い、型離後に中子を引き抜くことによって内部に中空部を一体に備えたパネルとして成形することができる。その他の成形方法としては、二枚の薄板状をなす表部材と、端面形状が波形となる略トタン屋根状の一枚の中空部形成体とを別々に成形しておき、当該中空部形成体をサンドイッチするように表部材を適宜な接着剤で接着することによって得ることもできる。
【００１０】
【実施例】
以下、本発明の実施例を、以下の参考例について説明した後に、図面を参照しながら説明する。
【００１１】
［第１参考例］
図１には、第１参考例に係る中空パネルの概略斜視図が示され、図２には、その一部の端面図が示されている。これらの図において、壁パネル、床パネル、天井パネル等の建築材料として用いることができる中空パネル１０は、相互に略平行に位置する平面状の外側部１１，１１と、これら外側部１１間に位置して略同一平面内に並ぶ複数の中空部１２とを備えて構成されている。
【００１２】
中空部１２は、図２中紙面直交方向に沿って直線状に延びた形状に設けられている。この中空部１２は、同図中左右方向に沿って所定間隔毎に位置する隔壁部１３が、略同一の傾斜角度で傾斜向きが交互に異なる方向に設けられ、これにより、各中空部１２略台形の断面形状を呈するように設けられている。本実施例では、各中空部１２の左右幅Ｗ１が小さい第１の中空部１２Ａと、これよりも左右幅が大きい第２の中空部１２Ｂが図２中左右方向に沿って交互に位置するように形成され、これにより、隣り合う中空部１２Ａ，１２Ｂの断面積が交互に異なって不均一となるように設けられている。なお、第１及び第２の中空部１２Ａ，１２Ｂの左右幅Ｗ１，Ｗ２は、パネル厚み方向における中心位置で示しているが、これは、隔壁部１３が傾斜していることに対応して便宜上中心を基準にして示したものに過ぎない。また、隔壁部１３は傾斜していなくてもよく、サインカーブ状の波形、或いは、隔壁部１３がパネル厚み方向に直交するような略パルス波形状等に変更することもできる。また、図３に示されるように、中空部１２の幅として更に大きな幅を有する第３の中空部１２Ｃを備えた中空パネル１０としてもよい。
【００１３】
なお、前記中空パネル１０の図１中左右両端１０Ａは、中空部１２を備えない閉塞構造とされ、これにより、外側部１１の左右方向端部がパネル面に対して直交する方向に折れ曲がったりすることがない剛性が付与されて定型性が維持できるようになっている。
【００１４】
このような第１参考例によれば、一枚の中空パネル１０を全体として捉えた時に、第１及び第２の中空部１２Ａ，１２Ｂの断面積が異なって形成されていることから、これら中空部１２Ａ，１２Ｂに略対応した領域毎の面密度が相違した関係となる。従って、中空部の断面積若しくは寸法によって発現するパネル共振周波数が、パネル面内で一定ではない分散された構造となり、特定周波数における共振によって発生する遮音欠損を効果的に抑制することができる。
【００１５】
次に、本発明の前記以外の参考例及び実施例について説明する。なお、以下の説明において、前記第１参考例と同一若しくは同等の構成部分については同一符号を用いるものとし、説明を省略若しくは簡略にする。
【００１６】
［第２参考例］
図４には、本発明の第２参考例が示されている。この参考例は、中空部１２の断面積をそれぞれ同一としつつも、各中空部１２間に位置する隔壁部１３の厚みＴ１，Ｔ２が交互に位置するように設けられたところに特徴を有する。ここで、厚みは、Ｔ１＞Ｔ２の関係に設けられている。
【００１７】
このような第２参考例によっても、厚みＴ１領域の面密度が厚みＴ２領域の面密度よりも高いため、つまり、剛性が強いため、パネル共振周波数が、中空パネル１０の面内で一定ではない構造となり、第１参考例と同様の遮音効果を奏することとなる。
【００１８】
［第１実施例］
図５及び図６には、本発明の第１実施例が示されている。この実施例は、本来は中空部が形成される特定の領域に中実部１５を形成したところに特徴を備えたものである。この中実部１５は、図６に示されるように、一つの中空部形成相当領域に直線状に設けたり、複数の中空部１２に跨って各中空部１２の一部を中実とするように設けたりすることができる。図示例では、中実部１５は直線状に延びているが、必ずしも直線状である必要はない。なお、この実施例は、図４に示された特定の隔壁部１３の厚みを極端に厚く設けた態様とも言える。
【００１９】
このような実施例によっても前記各参考例と同様の作用効果を奏することができる。
【００２０】
［第２実施例］
図７には、本発明の第２実施例が示されている。この実施例は、中空部１２の内部に当該中空部の断面形状に略対応した断面形状を有する中実部形成体としての棒状部材１６を挿入したものであり、これにより、面密度を部分的に異ならせて前述した遮音効果が得られるようにしたものである。このような構成では、予め成形された中空パネルへの適用が容易となり、既存パネルへの適用ができる他、面密度を異ならせる領域を任意に決定して棒状部材１６の挿入位置を変更することが可能となる。
【００２１】
また、図８に示されるように、棒状部材１６は、中空部１２が延びている方向に対して交わる方向、例えば、直交する方向に配置し、複数の中空部１２に跨って各中空部１２の一部に挿入するようにしてもよい。
【００２２】
以上のように、本発明を実施するための最良の構成、方法等は、前記記載で開示されているが、本発明は、これに限定されるものではない。
すなわち、本発明は、主に特定の実施例に関して特に図示、説明されているが、本発明の技術的思想及び目的の範囲から逸脱することなく、以上説明した実施例に対し、形状、位置若しくは配置等に関し、必要に応じて当業者が様々な変更を加えることができるものである。例えば、前記各実施例並びに変形例を任意に組み合わせることが可能である。また、棒状部材１６の使用本数も必要に応じて適宜増加、減少させてもよく、更には、棒状部材１６自体の質量が異なるものを種々用いることによって、面密度の分布を微細に異ならせることも可能となる。
【００２３】
【発明の効果】
以上説明したように、本発明によれば、パネルの共振周波数がパネル面内で一定でなく分散されるため、共振によって発生する遮音欠損を抑制することが可能になる、という従来にない優れた作用を奏する中空パネルを提供することができる。しかも、中空部は、略同一平面内に並ぶように構成されているため、中空パネルの厚みも抑制したものとすることができる。
【００２４】
また、中空部に棒状部材を挿入する構成を採用した場合には、面密度を部分的に異ならせる部位を任意に決定して配置することができるため、容易なる適用を実現して遮音欠損を抑制することができる。
【図面の簡単な説明】
【図１】 第１参考例に係る中空パネルの一部概略斜視図。
【図２】 前記中空パネルの部分端面図。
【図３】 第１参考例の変形例を示す中空パネルの部分端面図。
【図４】 第２参考例に係る中空パネルの部分端面図。
【図５】 第１実施例に係る中空パネルの部分端面図。
【図６】 第１実施例に係る中空パネルの概略平面図。
【図７】 第２実施例に係る中空パネルの概略平面図。
【図８】 第２実施例の変形例を示す中空パネルの概略平面図。
【符号の説明】
１０…中空パネル、１２…中空部、１２Ａ…第１の中空部、１２Ｂ…第２の中空部、１３Ｃ…第３の中空部、１３…隔壁部、１５…中実部、１６…棒状部材（中実部形成体）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hollow panel, and more particularly, to a hollow panel suitable for use as a building material such as a wall material, a floor material, and a ceiling material.
[0002]
[Prior art]
Conventionally, in various panels for construction, a hollow panel having a hollow portion therein is employed. According to this hollow panel, heat insulation and weight reduction can be achieved. Here, as a known hollow panel, between the two flat plates forming the surface, two corrugated plates whose end face shape is corrugated is sandwiched into one panel, and the hollow portion corresponding to the corrugated shape is formed. A hollow panel arranged along the lateral direction is known (see, for example, Patent Document 1). According to the hollow panel described in Patent Document 1, since it is configured to be sandwiched between the flat plates in a state where the convex portions of the two corrugated plates face each other, the cross-sectional area of the panel is completed. It becomes possible to improve the sound insulation defect of the coincidence effect that can occur at a specific frequency because the different hollow portions are included.
[0003]
[Patent Document 1]
JP-A-7-214712 [0004]
[Problems to be solved by the invention]
However, since the hollow panel described in Patent Document 1 has a configuration in which the cross-sectional areas of the hollow portions are different using two corrugated plates, there is a disadvantage that the thickness of the entire hollow panel is increased. In addition, the cost burden associated with the increase in the number of parts is unavoidable, and the corrugated sheets need to be joined together, resulting in an increase in work man-hours.
[0005]
OBJECT OF THE INVENTION
The present invention has been devised by paying attention to such inconveniences, and the purpose of the present invention is to enable the sound insulation performance to be effectively exhibited while suppressing the panel thickness, and to form the panel through the reduction of the number of parts. It is an object of the present invention to provide a hollow panel that can achieve labor saving and low manufacturing cost.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a hollow panel in which a plurality of hollow portions arranged in substantially the same plane and a solid portion are formed inside the panel, and the mass or rigidity thereof is partially The solid part is inserted into a part of each hollow part across a plurality of hollow parts, or a part of each hollow part is solid across a plurality of hollow parts. It is configured to be formed by .
Specifically, the hollow part includes a hollow part having a different cross-sectional area, a structure including a hollow part having a different separation distance between partition walls that form the width of the hollow part, or a hollow part. The structure which includes the partition part in which the thickness of the partition part located between parts differs, or the structure by which the solid part was provided ranging over the one or some hollow part is taken. According to such a structure, it becomes a hollow panel from which the surface density, ie, rigidity, in the specific area | region of a hollow panel becomes non-uniform | heterogenous. Therefore, for example, in the case of a hollow panel having a plurality of rows of hollow portions having a uniform cross-sectional area, the bending wave of the panel matches the wavelength of the sound wave at a specific frequency, as in the case of a solid and uniform surface density. The sound insulation defect occurs due to the coincidence effect. However, according to the hollow panel of the present invention, since the resonance frequency of the panel is not uniformly distributed in the panel surface, it is possible to suppress the sound insulation defect caused by the resonance. . And since the hollow part is comprised so that it may be located in a line in a substantially identical plane, the thickness of a hollow panel can also be suppressed.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
In this invention, the structure which inserts the solid part formation body which has a cross-sectional area substantially corresponding to the cross-sectional area of a specific hollow part among these hollow parts can also be employ | adopted. According to such a configuration, it becomes possible to partially vary the surface density by arranging the solid part forming body at an arbitrary position of the hollow part. It is possible to suppress the sound insulation defect by realizing an easy application.
[0008]
Although the hollow panel in this invention can be shape | molded using various materials, it is preferable to form using a wood element, for example. Examples of the wood element include wood flakes, wood fibers, wood chips, wood particles, and the like. These wood elements can be formed into a panel shape by molding. As the binder used in this molding, any of a foamable binder resin, a non-foamable binder resin, and a mixture thereof can be employed.
[0009]
In the manufacture of the hollow panel by the above molding, after a certain amount of wood elements are dispersed in the mold, cores corresponding to the shape of the hollow portion are arranged side by side in a substantially identical plane, and a certain amount of wood elements are placed from above. It can be formed as a panel having a hollow portion integrally formed therein by performing hot-pressing in a sprayed state and pulling out the core after mold release. As other forming methods, two thin plate-like surface members and one hollow portion forming body having a substantially tin roof shape whose end face shape is corrugated are separately formed, and the hollow portion forming body is formed separately. Can also be obtained by adhering the front member with an appropriate adhesive so as to sandwich them.
[0010]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings after describing the following reference examples .
[0011]
[First Reference Example]
FIG. 1 shows a schematic perspective view of a hollow panel according to a first reference example, and FIG. 2 shows a partial end view thereof. In these drawings, a hollow panel 10 that can be used as a building material such as a wall panel, a floor panel, or a ceiling panel is composed of planar outer portions 11 and 11 that are positioned substantially parallel to each other, and the outer portions 11. And a plurality of hollow portions 12 which are positioned and arranged in substantially the same plane.
[0012]
The hollow portion 12 is provided in a shape extending linearly along the direction orthogonal to the paper surface in FIG. In this hollow portion 12, partition wall portions 13 positioned at predetermined intervals along the left-right direction in the figure are provided in directions in which the inclination directions are alternately changed at substantially the same inclination angle. It is provided so as to exhibit a trapezoidal cross-sectional shape. In the present embodiment, the first hollow portions 12A having a small left-right width W1 of each hollow portion 12 and the second hollow portions 12B having a larger left-right width than this are alternately positioned along the left-right direction in FIG. Thus, the cross-sectional areas of the adjacent hollow portions 12A and 12B are alternately different and provided to be non-uniform. The left and right widths W1 and W2 of the first and second hollow portions 12A and 12B are shown by the center positions in the panel thickness direction, but this corresponds to the fact that the partition wall portion 13 is inclined for convenience. It is only shown based on the center. Further, the partition wall portion 13 does not have to be inclined, and can be changed to a sine curve waveform or a substantially pulse wave shape such that the partition wall portion 13 is orthogonal to the panel thickness direction. Further, as shown in FIG. 3, the hollow panel 10 may include a third hollow portion 12 </ b> C having a larger width as the width of the hollow portion 12.
[0013]
Note that the left and right ends 10A of the hollow panel 10 in FIG. 1 have a closed structure that does not include the hollow portion 12, whereby the left and right end portions of the outer portion 11 are bent in a direction perpendicular to the panel surface. Stiffness that does not occur is given so that the regularity can be maintained.
[0014]
According to such a first reference example, when the single hollow panel 10 is captured as a whole, the cross-sectional areas of the first and second hollow portions 12A and 12B are formed differently. The area density corresponding to the regions 12A and 12B substantially differs in area density. Accordingly, the panel resonance frequency expressed by the cross-sectional area or size of the hollow portion becomes a distributed structure that is not constant in the panel surface, and sound insulation defects generated by resonance at a specific frequency can be effectively suppressed.
[0015]
Next, reference examples and examples other than those described above will be described. In the following description, the same reference numerals are used for the same or equivalent components as in the first reference example, and the description is omitted or simplified.
[0016]
[Second Reference Example]
FIG. 4 shows a second reference example of the present invention. This reference example is characterized in that the thicknesses T1 and T2 of the partition wall portions 13 located between the hollow portions 12 are alternately arranged while the cross-sectional areas of the hollow portions 12 are the same. Here, the thickness is provided in a relationship of T1> T2.
[0017]
Also according to the second reference example, since the surface density of the thickness T1 region is higher than the surface density of the thickness T2 region, that is, the rigidity is strong, the panel resonance frequency is not constant in the plane of the hollow panel 10. It becomes a structure and has the same sound insulation effect as the first reference example.
[0018]
First Embodiment
5 and 6 show a first embodiment of the present invention. This embodiment is characterized in that the solid portion 15 is originally formed in a specific region where the hollow portion is formed. The solid portion 15, as shown in FIG. 6, or disposed linearly in a hollow portion formed corresponding region, and solid part of the hollow portion 12 straddling a plurality of hollow portions 12 to Or can be provided. In the illustrated example, the solid portion 15 extends linearly, but does not necessarily need to be linear. In addition, this Example can also be said to be an aspect in which the specific partition wall 13 shown in FIG. 4 is extremely thick.
[0019]
Also according to such an embodiment, the same operational effects as those of the reference examples can be obtained.
[0020]
[ Second Embodiment]
FIG. 7 shows a second embodiment of the present invention. In this embodiment, a rod-like member 16 as a solid part forming body having a cross-sectional shape substantially corresponding to the cross-sectional shape of the hollow part 12 is inserted into the hollow part 12, whereby the surface density is partially reduced. The above-described sound insulation effect can be obtained. In such a configuration, it becomes easy to apply to a pre-formed hollow panel, and can be applied to an existing panel. In addition, the area where the surface density is varied is arbitrarily determined, and the insertion position of the rod-shaped member 16 is changed. Is possible.
[0021]
Further, as shown in FIG. 8, the rod-shaped member 16 is arranged in a direction intersecting with the direction in which the hollow portion 12 extends, for example, in a direction orthogonal thereto, and spans the plurality of hollow portions 12. You may make it insert in a part of .
[0022]
As described above, the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this.
That is, although the present invention has been illustrated and described with particular reference to particular embodiments, it will be appreciated that the shape, position, or position of the embodiments described above is not departed from the technical spirit and scope of the invention. With respect to the arrangement and the like, those skilled in the art can make various changes as necessary. For example, the above embodiments and modifications can be arbitrarily combined. Further, the number of rod-shaped members 16 used may be increased or decreased as necessary, and the distribution of surface density may be made slightly different by using various rod-shaped members 16 having different masses. Is also possible.
[0023]
【The invention's effect】
As described above, according to the present invention, since the resonance frequency of the panel is not constant in the panel surface, the sound insulation defect caused by resonance can be suppressed. A hollow panel having an effect can be provided. And since the hollow part is comprised so that it may be located in a line in a substantially identical plane, the thickness of a hollow panel can also be suppressed.
[0024]
In addition, in the case of adopting a configuration in which a rod-like member is inserted into the hollow portion, it is possible to arbitrarily determine and arrange a part where the surface density is partially different. Can be suppressed.
[Brief description of the drawings]
FIG. 1 is a partial schematic perspective view of a hollow panel according to a first reference example.
FIG. 2 is a partial end view of the hollow panel.
FIG. 3 is a partial end view of a hollow panel showing a modification of the first reference example.
FIG. 4 is a partial end view of a hollow panel according to a second reference example.
FIG. 5 is a partial end view of the hollow panel according to the first embodiment.
FIG. 6 is a schematic plan view of a hollow panel according to the first embodiment.
FIG. 7 is a schematic plan view of a hollow panel according to a second embodiment.
FIG. 8 is a schematic plan view of a hollow panel showing a modification of the second embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Hollow panel, 12 ... Hollow part, 12A ... 1st hollow part, 12B ... 2nd hollow part, 13C ... 3rd hollow part, 13 ... Partition part, 15 ... Solid part, 16 ... Rod-shaped member ( Solid part formation)

Claims (2)

パネルの内部に、略同一平面内に並ぶ複数の中空部と、中実部とが形成されてなる中空パネルであって、
前記中空部は、断面積が相違する中空部を含んでいる構成、中空部の幅を形成する隔壁部の相互離間距離が相違する中空部を含んでいる構成、或いは、中空部間に位置する隔壁部の厚みが相違する隔壁部を含んでいる構成であり、
前記中実部は、複数の中空部に跨って各中空部の一部に中実部形成体を挿入することにより形成されることを特徴とする中空パネル。A hollow panel in which a plurality of hollow portions arranged in substantially the same plane and a solid portion are formed inside the panel,
The hollow part includes a hollow part having a different cross-sectional area, a structure including a hollow part having a different separation distance between partition walls forming the width of the hollow part, or located between the hollow parts. It is a configuration including a partition wall portion having a different thickness of the partition wall portion,
The solid part is formed by inserting a solid part forming body into a part of each hollow part across a plurality of hollow parts . パネルの内部に、略同一平面内に並ぶ複数の中空部と、中実部とが形成されてなる中空パネルであって、
前記中空部は、断面積が相違する中空部を含んでいる構成、中空部の幅を形成する隔壁部の相互離間距離が相違する中空部を含んでいる構成、或いは、中空部間に位置する隔壁部の厚みが相違する隔壁部を含んでいる構成であり、
前記中実部は、複数の中空部に跨って各中空部の一部を中実とすることにより形成されることを特徴とする中空パネル。A hollow panel in which a plurality of hollow portions arranged in substantially the same plane and a solid portion are formed inside the panel,
The hollow part includes a hollow part having a different cross-sectional area, a structure including a hollow part having a different separation distance between partition walls forming the width of the hollow part , or located between the hollow parts. It is a configuration including a partition wall portion having a different thickness of the partition wall portion,
The said solid part is formed by making a part of each hollow part solid over a some hollow part, The hollow panel characterized by the above-mentioned.
JP2002274727A 2002-09-20 2002-09-20 Hollow panel Expired - Fee Related JP3918699B2 (en)

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DE60327587T DE60327587D1 (en) 2002-09-20 2003-09-19 Multiwall sheet
CA002441749A CA2441749C (en) 2002-09-20 2003-09-19 Hollow panel
EP03021112A EP1400636B1 (en) 2002-09-20 2003-09-19 Hollow panel
CNB031585698A CN100333885C (en) 2002-09-20 2003-09-19 Hollow plate
US10/666,431 US20040074206A1 (en) 2002-09-20 2003-09-19 Hollow panel
CNU03208045XU CN2673986Y (en) 2002-09-20 2003-09-19 Hollow plate
HK04105486A HK1062546A1 (en) 2002-09-20 2004-07-26 Hollow panel

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