WO1998044214A1 - A flexible board-like product and a method for manufacturing it and a use of it. - Google Patents

A flexible board-like product and a method for manufacturing it and a use of it. Download PDF

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Publication number
WO1998044214A1
WO1998044214A1 PCT/FI1998/000268 FI9800268W WO9844214A1 WO 1998044214 A1 WO1998044214 A1 WO 1998044214A1 FI 9800268 W FI9800268 W FI 9800268W WO 9844214 A1 WO9844214 A1 WO 9844214A1
Authority
WO
WIPO (PCT)
Prior art keywords
board
layer
product
flexible
product according
Prior art date
Application number
PCT/FI1998/000268
Other languages
French (fr)
Inventor
Sebastian Bertil LÖNNQVIST
Original Assignee
Loennqvist Sebastian Bertil
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FI971360A external-priority patent/FI971360A0/en
Application filed by Loennqvist Sebastian Bertil filed Critical Loennqvist Sebastian Bertil
Priority to AU65035/98A priority Critical patent/AU6503598A/en
Publication of WO1998044214A1 publication Critical patent/WO1998044214A1/en

Links

Classifications

    • 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
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
    • E04B2/7401—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using panels without a frame or supporting posts, with or without upper or lower edge locating rails
    • E04B2/7403—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using panels without a frame or supporting posts, with or without upper or lower edge locating rails with special measures for sound or thermal insulation including fire protection
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/70—Door leaves
    • E06B3/80—Door leaves flexible
    • 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
    • E04B2001/8414—Sound-absorbing elements with non-planar face, e.g. curved, egg-crate shaped
    • 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
    • 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
    • E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element
    • E04B2001/849—Groove or slot type openings

Definitions

  • the present invention relates to a flexible, board-like product and a method for manufacturing it.
  • the building board industry manufactures a product in which an elastic material is sandwiched between two building boards.
  • One type of board made in this way is a board laminated from two sheets of plywood and a heavy rubber mat, which is generally used as flooring in buses and railroad cars, due to its excellent vibration and sound attenuation.
  • the purpose of this invention is to create a flexible board, which can be cheaply and easily manufactured, has excellent storage and acoustical improvement qualities, and is flexible.
  • a board comprising the two plywood sheets and heavy rubber layer described above, is grooved symmetrically on both sides down to the elastic material, the groove and elastic material forming a flexible joint. It is also possible to groove a board, with a building board on only one surface, the other being the elastic material. The material with an elastic structure holds this construction together, the strips of building board between the grooves acting as stiffeners. The frequency and width of the grooves can be varied according to the application to obtain a suitable bending radius.
  • Figure 1 shows an axonometric view of a section of flexible wall according to the invention
  • FIG. 1 shows the same wall seen from directly above.
  • the invention comprises a building board, an elastic material and grooves.
  • the building board may be, for example, plywood, and the elastic material, for example, rubber, a woven fabric, or plastic.
  • the building board is indicated by the numbers 1 and 3, the elastic material by number 2 and the grooves by number 4.
  • the construction may comprise only a single surface of building board and a single layer of elastic material.
  • the construction depicted above is created by attaching building boards 1 and 3 to either side of a sheet 2 of flexible material and then sawing grooves 4 in both boards 1 and 3, creating exposed grooves 4 down to sheet 2, though it is essential that material 2 itself is not sawn. Sawing can take place with any known type of saw, for example, a circular saw or a router.
  • Elastic material 2 acts as a structure holding the invention together. If the board comprises at least two stiff layers 1 and 3 and a single layer of elastic material 2, the grooves are advantageously located symmetrically on each side of the board, so that there is only the layer of elastic material 2 between them.
  • the flexibility and bending radius of the board can be altered by the width and frequency of the grooves.
  • the board can also be grooved crosswise, so that it can bend as a spherical surface.
  • One embodiment of the invention is a bendable screen, acting as an architectonic and acoustic space divider or acoustic element.
  • the screen is made, for example, as described above, from two plywood building boards with a rubber mat attached between them, so that by suitably grooving the board, unrestricted flexibility can be achieved, while retaining the necessary structural stiffness for the screen to be free standing.
  • this embodiment too, is not restricted to the manner of manufacture described above.
  • a flexible product according to the invention can also be manufactured from other structural elements for various purposes in places where flexibility is beneficial. Naturally, the product can be secured to existing structures by hinges or other means.
  • Another embodiment of the invention is a panel for improving acoustics.
  • This can be suspended from a ceiling to create different radial cylindrical surfaces, with the strips of board acting as surfaces to break up sound waves, and the elastic material forming grooves between them and a sound attenuating surface.
  • By sawing crosswise grooves a surface of grooves with building board surfaces in between can be created.
  • the board can also be made into spherical surfaces.
  • the strip-like pieces formed by sawing or otherwise need not have a constant width, a certain kind of bending being possible, even if the cuts 4 are not parallel.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Acoustics & Sound (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)

Abstract

The invention relates to a flexible, board-like product made from a stiff board (1, 3) and elastic material (2) and a method for manufacturing it. The product comprises one or two surfaces of material (1 and/or 3), a layer of elastic material (2) and grooves (4). The grooves are cut through material (1, 3) to material (2). The grooves (4) according to the invention are machined in the boards particularly by means of a circular saw. The product has excellent acoustical properties.

Description

A FLEXIBLE BOARD-LIKE PRODUCT AND A METHOD FOR MANUFACTURING IT AND A USE OF IT.
The present invention relates to a flexible, board-like product and a method for manufacturing it.
There is often a need to divide dwelling or working accommodation into smaller parts, without it being necessary or sensible to construct permanent partition walls, which are difficult to alter later. Besides the visual division of a room, its acoustics must be improved to best fit the use of the room. It may also be desirable to temporarily divide a room completely into separate parts acoustically and visually, using a dividing structure that can be easily adapted, dismantled and stored. Stiff panel-type boards are usually used for this purpose, these being divided into sections of a certain dimension, which can be assembled to form a wall of the required length. A stiff board is generally expensive, while its erection is complicated, requiring another board, wall or foot for support. It is also difficult to adjust.
Sometimes it is only necessary to temporarily improve the acoustic properties of a room, in which case the solution should be easily adjustable and require little space for storage. The most usual solutions cover the surfaces of the room or separate structures with a material having good acoustic properties. Such structures do not meet the aforementioned criteria.
A need has also become apparent to develop a type of door better suited to the needs of disabled persons. It has proven difficult for a person in a wheelchair to open a conventional door, as disabled people find it easier to use a flexible door. Flexible doors have not been used until now. However, concertina and folding doors are known.
It has been difficult to find a suitable method of manufacturing a flexible material, which would be not only sufficiently stiff, but also sufficiently flexible. Often a construction, in which there are strips attached sequentially to one another, or to another corresponding construction, is used, but this is difficult and expensive to implement. It has also been difficult to create a construction of sufficient elasticity.
The building board industry manufactures a product in which an elastic material is sandwiched between two building boards. One type of board made in this way is a board laminated from two sheets of plywood and a heavy rubber mat, which is generally used as flooring in buses and railroad cars, due to its excellent vibration and sound attenuation.
The purpose of this invention is to create a flexible board, which can be cheaply and easily manufactured, has excellent storage and acoustical improvement qualities, and is flexible.
The aforementioned and other good properties and advantages of this invention have been achieved in the characteristic manner described in the accompanying Claims.
According to one well-regarded embodiment of the invention, a board, comprising the two plywood sheets and heavy rubber layer described above, is grooved symmetrically on both sides down to the elastic material, the groove and elastic material forming a flexible joint. It is also possible to groove a board, with a building board on only one surface, the other being the elastic material. The material with an elastic structure holds this construction together, the strips of building board between the grooves acting as stiffeners. The frequency and width of the grooves can be varied according to the application to obtain a suitable bending radius.
It is obvious that this is only one example of the materials and method of manufacture. Thus, certainly other sheet materials besides rubber are sufficiently stiff and flexible to support a product given a strip-like shape. For example, structures with sufficient stiffness and flexibility can be obtained by using plastic-based or similar boards, while several materials also achieve good sound absorption. The choice often depends on the application and on the weight of the required material. The following detailed description of the invention refers to the accompanying example illustrations, in which:
Figure 1 shows an axonometric view of a section of flexible wall according to the invention and
Figure 2 shows the same wall seen from directly above.
The invention comprises a building board, an elastic material and grooves. The building board may be, for example, plywood, and the elastic material, for example, rubber, a woven fabric, or plastic. In the drawing, the building board is indicated by the numbers 1 and 3, the elastic material by number 2 and the grooves by number 4. According to the invention, the construction may comprise only a single surface of building board and a single layer of elastic material. In particular, the construction depicted above is created by attaching building boards 1 and 3 to either side of a sheet 2 of flexible material and then sawing grooves 4 in both boards 1 and 3, creating exposed grooves 4 down to sheet 2, though it is essential that material 2 itself is not sawn. Sawing can take place with any known type of saw, for example, a circular saw or a router.
Elastic material 2 acts as a structure holding the invention together. If the board comprises at least two stiff layers 1 and 3 and a single layer of elastic material 2, the grooves are advantageously located symmetrically on each side of the board, so that there is only the layer of elastic material 2 between them.
The flexibility and bending radius of the board can be altered by the width and frequency of the grooves. The board can also be grooved crosswise, so that it can bend as a spherical surface.
It is self-evident that precisely the same result can be achieved by attaching strips of board 1 and 3 to one or both sides of the flexible material in a suitable manner, for instance, by gluing, so that the sawing described above is unnecessary. The invention brings considerable advantages.
One embodiment of the invention is a bendable screen, acting as an architectonic and acoustic space divider or acoustic element. The screen is made, for example, as described above, from two plywood building boards with a rubber mat attached between them, so that by suitably grooving the board, unrestricted flexibility can be achieved, while retaining the necessary structural stiffness for the screen to be free standing. Naturally, this embodiment, too, is not restricted to the manner of manufacture described above.
A flexible product according to the invention can also be manufactured from other structural elements for various purposes in places where flexibility is beneficial. Naturally, the product can be secured to existing structures by hinges or other means.
Another embodiment of the invention is a panel for improving acoustics. This can be suspended from a ceiling to create different radial cylindrical surfaces, with the strips of board acting as surfaces to break up sound waves, and the elastic material forming grooves between them and a sound attenuating surface. By sawing crosswise grooves, a surface of grooves with building board surfaces in between can be created. In this way, the board can also be made into spherical surfaces. It is also obvious that the strip-like pieces formed by sawing or otherwise need not have a constant width, a certain kind of bending being possible, even if the cuts 4 are not parallel.

Claims

Claims
1. A flexible, board-like product, formed of a layer of fairly stiff, flexible material (2) that retains its shape and a layer of board-like material (1 , 3) on at least one side, characterized in that the layer of board-like material (1 , 3) is divided into strip-like sections by means of gaps (4) extending essentially to the layer of material (2).
2. A product according to Claim 1 , characterized in that there is a layer of board-like material (1 , 3) divided into strip-like sections on both sides of layer (2).
3. A product according to Claim 1 , characterized in that the gaps (4) are essentially at an equal distance to one another.
4. A product according to Claim 1 , characterized in that there are gaps (4) in the product in at least two directions, which are possibly at essentially right angles to each other.
5. A product according to Claim 1 , characterized in that the layer of flexible material (2) is a sheet of rubber, plastic or woven fabric.
6. A product according to Claim 1 , characterized in that the layers of board-like material (1 , 3) are building boards, such as plywood, solid timber or plastic-based material.
7. A product according to Claim 1 , characterized in that the product has gaps (4) at varying distances to each other.
8. A method for manufacturing a flexible, board-like product, formed of a layer of fairly stiff, flexible material (2) that retains its shape (2) and a layer of board-like material (1 , 3) on at least one side, characterized in that the layer of board-like material (1 , 3) is attached to at least one side and most advantageously to both sides of layer (2) and that the material layers (1 , 3) are divided into strip-like sections by means of cuts (4) that essentially extend to the layer of material (2).
9. A method according to Claim 8, characterized in that the division of the material layers (1 , 3) takes place by sawing.
10. The use of a product according to Claim 1 as a unit improving acoustics, as an architectonic space unit, as a flexible door or as any other object requiring flexibility.
PCT/FI1998/000268 1997-04-03 1998-03-26 A flexible board-like product and a method for manufacturing it and a use of it. WO1998044214A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU65035/98A AU6503598A (en) 1997-04-03 1998-03-26 A flexible board-like product and a method for manufacturing it and a use of it.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FI971360 1997-04-03
FI971360A FI971360A0 (en) 1997-04-03 1997-04-03 Fritt boejbar av byggnadsplatta och elastict laminerad skiva ocfofarande Foer framstaellning daerav
FI973951A FI973951A (en) 1997-04-03 1997-10-14 Flexible disc-shaped product and process for making it
FI973951 1997-10-14

Publications (1)

Publication Number Publication Date
WO1998044214A1 true WO1998044214A1 (en) 1998-10-08

Family

ID=26160359

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1998/000268 WO1998044214A1 (en) 1997-04-03 1998-03-26 A flexible board-like product and a method for manufacturing it and a use of it.

Country Status (3)

Country Link
AU (1) AU6503598A (en)
FI (1) FI973951A (en)
WO (1) WO1998044214A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2926308A1 (en) * 2008-01-16 2009-07-17 David Alambari Structural acoustic wave absorbing and/or insulating panel for e.g. storage cabinet of office workstation, has assembling unit for joining panels and acoustic web for forming sandwich structure
EP1961885A3 (en) * 2007-02-26 2009-09-02 REHAU AG + Co Wall element
DE102014005826A1 (en) * 2014-04-24 2015-10-29 Wolfgang Lambacher Cover and its use
BE1022440B1 (en) * 2013-09-04 2016-03-30 VANDEVIVERE, Ivan PLEASED ACCESSION DOOR

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2054499A (en) * 1934-12-28 1936-09-15 Florman Irving Flexible shutter and method of making same
US2671522A (en) * 1950-03-31 1954-03-09 Bourgeois Charles Sound-absorbing panel
US3086585A (en) * 1960-08-08 1963-04-23 Clopay Corp Hinge construction for accordion folding door
SE385136B (en) * 1974-12-13 1976-06-08 Totebo Industrier Ab IMITED LID PANEL
US4027715A (en) * 1974-11-25 1977-06-07 Tohma Kohan Kabushiki Kaisha Door

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2054499A (en) * 1934-12-28 1936-09-15 Florman Irving Flexible shutter and method of making same
US2671522A (en) * 1950-03-31 1954-03-09 Bourgeois Charles Sound-absorbing panel
US3086585A (en) * 1960-08-08 1963-04-23 Clopay Corp Hinge construction for accordion folding door
US4027715A (en) * 1974-11-25 1977-06-07 Tohma Kohan Kabushiki Kaisha Door
SE385136B (en) * 1974-12-13 1976-06-08 Totebo Industrier Ab IMITED LID PANEL

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1961885A3 (en) * 2007-02-26 2009-09-02 REHAU AG + Co Wall element
FR2926308A1 (en) * 2008-01-16 2009-07-17 David Alambari Structural acoustic wave absorbing and/or insulating panel for e.g. storage cabinet of office workstation, has assembling unit for joining panels and acoustic web for forming sandwich structure
BE1022440B1 (en) * 2013-09-04 2016-03-30 VANDEVIVERE, Ivan PLEASED ACCESSION DOOR
DE102014005826A1 (en) * 2014-04-24 2015-10-29 Wolfgang Lambacher Cover and its use
DE102014005826B4 (en) * 2014-04-24 2018-11-08 Wolfgang Lambacher Device and its use

Also Published As

Publication number Publication date
FI973951A0 (en) 1997-10-14
AU6503598A (en) 1998-10-22
FI973951A (en) 1998-12-08

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