Plate-shaped constructional element and method
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E04B-001/82
E04C-002/54
E04C-002/34
출원번호
US-0786120
(2001-03-01)
우선권정보
DE-0039973 (1998-09-02)
국제출원번호
PCT/EP99/06386
(1999-08-31)
국제공개번호
WO00/14353
(2000-03-16)
발명자
/ 주소
Fuchs, Helmut
출원인 / 주소
Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
대리인 / 주소
Crowell & Moring LLP
인용정보
피인용 횟수 :
7인용 특허 :
10
초록▼
A plate-shaped constructional element comprises a perforated plate made of a solid material such as metal, wood, wood chip board, pressboard, synthetic material or gypsum, and is characterized by the provision that a micro-perforated sheet or thin plate is disposed on one of the plate surfaces of th
A plate-shaped constructional element comprises a perforated plate made of a solid material such as metal, wood, wood chip board, pressboard, synthetic material or gypsum, and is characterized by the provision that a micro-perforated sheet or thin plate is disposed on one of the plate surfaces of the plate. One variant provides that the holes in the plate are formed in such a manner that they open each into a micro hole on one side of the plate.
대표청구항▼
1. Plate-shaped constructional element defining at least part of any of wall wainscoting, a ceiling, a jointless facing shell, and a wall having a dual-shell structure, comprising: a sound-absorbing perforated plate approximately 6 to 30 mm thick made of a solid material such as metal, wood, wood
1. Plate-shaped constructional element defining at least part of any of wall wainscoting, a ceiling, a jointless facing shell, and a wall having a dual-shell structure, comprising: a sound-absorbing perforated plate approximately 6 to 30 mm thick made of a solid material such as metal, wood, wood chip board, pressboard, synthetic material or gypsum, and a micro-perforated sheet or thin plate disposed on one of the plate surfaces of said perforated plate, wherein said perforated plate consists of a supporting structure or grating having a hole area fraction of 10-90%, and wherein said micro-perforated sheet or thin plate includes holes having diameters smaller than 2 mm and a hole area fraction smaller than 4% of the total area. 2. Constructional element according to claim 1, wherein the surface of said sheet or thin plate is subjected to one of a varnish and coating surface treatment. 3. Constructional element according to claim 1, wherein one of a non-woven material, a tissue and wallpaper is disposed on said sheet or thin plate. 4. Constructional element according to claim 1, wherein one of an acoustically transmitting paint coat and a thin porous material such as paper is applied on said sheet or thin plate. 5. Constructional element according to claim 1, wherein an acoustically transmitting thin porous material layer is applied on said sheet or thin plate, and wherein a thick porous layer such as an acoustic mortar is provided on said thin porous material layer. 6. Constructional element according to claim 1, wherein an open-cell foamed material is applied as a topmost layer on said sheet or thin plate. 7. Constructional element according to claim 1, wherein said holes have diameters smaller than 1 mm. 8. Constructional element according to claim 7, wherein said hole area fraction is smaller than 2% of the total area. 9. Constructional element according to claim 1, wherein said hole area fraction is smaller than 2% of the total area. 10. Plate shaped constructional element defining at least part of any of wall wainscoting, a ceiling, a jointless facing shell, and a wall having a dual-shell structure, comprising: a thick sound-absorbing perforated supporting structure plate approximately 6 to 30 mm thick made of solid material, and a thin micro-perforated sheet disposed on one surface of the perforated supporting structure plate, wherein said perforated plate consists of a supporting structure or grating having a hole area fraction of 10-90%, and wherein said micro-perforated sheet or thin plate includes holes having diameters smaller than 2 mm and a hole area fraction smaller than 4% of the total area. 11. Plate shaped constructional element according to claim 10, wherein said thick supporting structure plate is perforated by through holes having respective hole diameters between 2 mm and 30 mm. 12. Plate shaped constructional element according to claim 10, wherein said thin micro-perforated sheet is formed as a paper sheet which is adhered to the thick supporting structure plate. 13. Plate shaped constructional element according to claim 10, wherein said thick supporting structure plate includes through holes exhibiting a total cross-sectional area of 20% to 30% of the total surface area of the thick supporting structure plate. 14. Plate shaped constructional element according to claim 13, wherein said thin micro-perforated sheet is formed as a paper sheet which is adhered to the thick supporting structure plate. 15. Plate-shaped constructional element comprising: a perforated plate made of a solid material, and a micro-perforated sheet or thin plate disposed on one of the plate surfaces of said perforated plate, wherein an acoustically transmitting thin porous material layer is applied on said sheet or thin plate, and wherein a thick porous layer is provided on said thin porous material layer.
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이 특허에 인용된 특허 (10)
Kurrasch Andrew J. (Saugatuck MI), Acoustic panel.
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