EP1356170A1 - A method of joining two or more units of insulating material - Google Patents

A method of joining two or more units of insulating material

Info

Publication number
EP1356170A1
EP1356170A1 EP02709988A EP02709988A EP1356170A1 EP 1356170 A1 EP1356170 A1 EP 1356170A1 EP 02709988 A EP02709988 A EP 02709988A EP 02709988 A EP02709988 A EP 02709988A EP 1356170 A1 EP1356170 A1 EP 1356170A1
Authority
EP
European Patent Office
Prior art keywords
section
head
fastener
horizontal plane
units
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP02709988A
Other languages
German (de)
French (fr)
Inventor
Kurt Munk Pedersen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rockwool AS
Original Assignee
Rockwool International AS
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
Application filed by Rockwool International AS filed Critical Rockwool International AS
Publication of EP1356170A1 publication Critical patent/EP1356170A1/en
Withdrawn legal-status Critical Current

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
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/941—Building elements specially adapted therefor
    • E04B1/943—Building elements specially adapted therefor elongated
    • E04B1/944—Building elements specially adapted therefor elongated covered with fire-proofing material
    • 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
    • E04B1/76—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 heat only

Definitions

  • the present invention relates to a method of joining two or more units of insulating material, as well as the use of a fastener for carrying out said method.
  • SE-C2-507549 discloses a fastening element and a method of fastening such insulating units to each other.
  • This fastening element is in the form of a helix shaped screw composed of a helix formed head and a helix formed wire. The helix shaped screw is screwed into the insulating materials to be joined together. The joint provided by use of this helix shaped screw is generally acceptable.
  • the objective of the invention is thus to provide a method of joining two or more units of insulating material to each other which method does not have the drawbacks of the known methods as disclosed above.
  • the invention comprises the use of a fastener for joining two or more units of insulating material to each other.
  • the fastener for use according to the invention comprises a head and a body extending from its head.
  • the body has an elongated shape comprising a first section and a second section, wherein this first section is connected to the head.
  • the head may also be made of the same material as that of the first section and may be shaped in direct prolongation of the first section of the body.
  • a first horizontal plane is defined as the plane perpendicular to the extending direction of the first section of the body and containing the point of connection between the head and the body.
  • the second section is connected to the first section in an angle between 45 and 135 degrees, preferably between 85 and 95 degrees, and more preferably around 90 degrees relative to the first section.
  • the head of the fastener extends beyond the first horizontal plane as defined above.
  • the head should preferably be in the form of a 0.5-10 mm thick disc arranged in said first horizontal plane. If the head is not arranged in the first horizontal plane, the head may protrude out of the connected insulation material units, and such protrusion is in general undesired.
  • the periphery of the disk may have any size and shape, provided that the head is sufficiently large to act as a hook and prevent the head from penetrating through the insulating unit.
  • the head should be in the form of a disk with a periphery surrounding an area of at least 20 mm 2 , and if the insulating units contain mineral fibres, the area should preferably be at least 100 mm 2 .
  • the shape of the head or the periphery is in general not important and may include any rounded shapes, e.g. oval or circular, as well as any angular shapes e.g. triangular, quadrangular, pentagonal, hexagonal, etc.
  • the head should preferably have some kind of knot or recess e.g. one or more holes or grooves, which knot or recess fits into a tool e.g. a screwdriver or similar tool by use of which the fastener can be turned.
  • a tool e.g. a screwdriver or similar tool by use of which the fastener can be turned.
  • the head arranged in said first horizontal plane is preferably made of the same material as that of the first section of the body and may be shaped in the form of an essentially circular spiral, which prolongs directly from the first section of the body.
  • the head could also preferably be covered by a capsule in order to minimize/prevent the filtering of the fasteners into each other.
  • a capsule in order to minimize/prevent the filtering of the fasteners into each other.
  • filtering can also be minimized by letting the spiral close into itself/join itself.
  • the length of the body should be specific, selected for the particular use. The thicker the insulating units are, the longer the body should be. In general, the length of the body should be sufficiently long so that the fastener can penetrate at least 0.5, preferably at least 1 cm into the thickness of the outermost insulating unit (the unit farthest from the head of the fastener) , and penetrate the one or more other inner most insulating unit(s) . In most situations it is preferred that the length of the body should be between 10 and 200 mm, more preferably between 20 and 100 mm. The length of the body is defined as the perpendicular distance between the first horizontal plane and a second horizontal plane parallel to the first horizontal plane and containing a tangent to the point of the body farthest from the first horizontal plane.
  • the second section is the first section in an angle between 45 and 135 degrees, preferably between 85 and 95 degrees, and more preferably around 90 degrees relative to the first section.
  • the second section of the body is connected to a protrusion from the first section of the body to provide an angle as described above between the first and the second section.
  • the protrusion of the second section from the first section provides the body with a total width extension of the body which should preferably be between 3 and 40 mm, more preferably between 10 and 20 mm.
  • the width extension of the body is defined as the maximum perpendicular distance between a first and a second vertical plane perpendicular to said first horizontal plane and touching said body.
  • the body may e.g. have a T-formed or L-formed shape, wherein the vertical part of the T or L constitutes the first section of the body, and the horizontal part of the T or L constitutes the second section of the body. Due to providing a fastener which is both cheap and easy to produce it is, however, preferred that the fastener is shaped as a bent nail.
  • the body may preferably have an angular or round cross- section i.e. be shaped as an angular or round rod e.g. being oval or circular, as well as any angular shapes e.g. triangular, quadrangular, pentagonal, and hexagonal, which rod preferably has a maximum diameter of between 0.5 and 5 mm.
  • the cross-section or the diameter of the body may preferably be substantially equal to the diameter in its first section and more preferably the second section may have a similar diameter throughout its length besides a tip portion, which tip portion comprises a cone-shaped tip.
  • the body and head may be made from similar or from distinct materials.
  • Preferred materials for both head and body include any metals, preferably steel and brass, and further the preferred materials include polymers, preferably polymers with a relatively high flexural rigidity, e.g. polystyrene, polycarbonate, polypropylene and polyamide.
  • the second section of the body may e.g. be coated with an expandable composition i.e. a composition which expands when subjected to heat, moisture, microwave or similar.
  • the expandable composition could preferably be glue or paint which expands under influence of heat.
  • the method according to the invention of joining two or more units of insulating material to each other comprises the steps of
  • the fastener for use in the method may preferably comprise a head and a body extending from said head and have an elongated shape comprising a first section connected to the head and a second connected to said first section in an angle between 45 and 135 relative to the first section, said first and said second sections preferably being in the form of a bent rod.
  • the fasteners described above are particularly useful in the method according to the claims.
  • the units of insulating material may in principle be of any type which can be penetrated by the fastener particularly foam e.g. polyurethane foam and mineral wool e.g. rock, slag, glass and similar vitreous materials.
  • foam e.g. polyurethane foam and mineral wool e.g. rock, slag, glass and similar vitreous materials.
  • the units of insulating material may have any desired size.
  • the shape of the units of insulating material may also be as desired, but it is preferred that the surfaces of the units of insulating material which are supposed to face each other in the step of connection have shapes which correspond to each other to provide a tight connection.
  • the fastener (s) are turned e.g. at least 5 degrees, preferably at least 45 degrees and most preferably around 90 degrees.
  • the number of fasteners used connecting two or more units of insulating material to each other depends on the size of the units and the desired strength of the connection. The skilled person will by use of a few tests be able to find the optimal number of fasteners for a specific connection of units of insulating material.
  • the units to be connected are held together in the desired formation and the one or more fasteners are inserted into the units of material to thereby join the units of insulating material together.
  • the units of insulating material may be compressed during the fastening of the fasteners.
  • Another or additional way to obtain a highly tight fastening is to further add glue between the surfaces to be connected. The amount of glue can be much lower than when using glue alone. Also it is possible to use glue with less tack as the fastener will hold the units of insulating material together.
  • the fastener is inserted into and penetrates a first unit and optionally further units of insulating material designated as the innermost unit(s) of insulating material, and therefrom further inserted partly into an outermost unit of insulating material and finally turned at least 5 degrees.
  • the outermost unit of insulating material i.e. the unit of insulating material which is supposed to contain the second section of the body is in the form of an insulating material based on mineral wool.
  • mineral wool insulating units generally comprise naturally formed layers, i.e. like layers in a book.
  • the fastener while being inserted into the outermost unit is held in a position where it fits in between the layers of the outermost unit i.e.
  • the second section is extending in the direction + about 15 degrees of the main direction of the layers of the outermost unit, more preferably, the fastener while being inserted into the outermost unit is held in a position where a third vertical plane containing the extension direction of the second section of the body is substantially parallel with the main direction of the layers of the outermost unit of insulating material, wherein the third vertical plane is perpendicular to the first horizontal plane.
  • Fig. 1 is a perspective view of a preferred fastener for use in the invention.
  • Fig. 2 is a side view of another fastener for use in the invention.
  • Fig. 3 is a side view of a third embodiment for use in the invention.
  • Fig. 4 is a top view showing the head of a fastener for use in the invention.
  • Fig. 5 is a top view showing another head of a fastener for use in the invention.
  • Fig. 6 is a top view showing another head of a fastener for use in the invention.
  • Fig. 1 shows a preferred fastener for use in the invention.
  • the fastener comprises a head 1 and a body 2.
  • the body comprises a first section 3 connected to the head and a second section 4, connected to the first section.
  • the body sections 3 and 4 may be made in one part and bent to provide the preferred angle A.
  • the head 1 is connected to the body 2, in a connection point 5.
  • the body 2 is shaped as a round rod with a substantially circular cross-section.
  • the diameter of the body 3 is substantially equal in both its first section 3 and its second section 4 besides a tapering tip portion
  • the head 1 is shaped as a thin disk with a substantially circular periphery.
  • the head 41 shown in fig. 4 is square formed head with a transverse groove 42.
  • the head 51 shown in fig. 5 has a substantially circular periphery and comprises two depressions or through-going holes 52 for inserting a tool and turning the fastener as described above.
  • the head 61 shown in figure 6 is shaped as an essentially circular spiral which may prolong directly from the first section of the body.
  • the exterior arm 62 of the spiral comprising the head may close into itself so as to provide a contact point 63, thereby preventing the filtering of the fasteners into each other.
  • the vertical plane defined by the first portion 64 of the circular spiral comprising the head 61 is substantially parallel to the vertical plane defined by the length direction of the second section of the body. This feature allows the user to known the orientation of said second section while installing the fasteners.
  • Fig. 2 shows a variation of the fastener of fig. 1 for use in the invention.
  • the fastener comprises a head 21, and a body 22.
  • the body comprises a first section 23 connected to the head and a second section 24, connected to the first section.
  • the body sections 23 and 24 may be made in one part and bent to provide the preferred angle A which in the fastener of fig. 2 is smaller than in the fastener of fig. 1.
  • the fastener comprises a head 31 and a body 32.
  • the body comprises a first section 33 connected to the head and a second section 34, connected to the first section.
  • the first and second sections of the body 32 are shaped as a T and thereby provides two angles Al and A2 which are substantially equal to each other.
  • the angles Al and A2 may vary individually from each other, but preferably within the interval between 45 and 135 degrees.
  • first and the second horizontal planes are indicated with the lines HI—HI and H2-H2, respectively, wherein the horizontal planes contain these lines and extend in a direction perpendicular to the paper.
  • the first and the second vertical planes are indicated with the lines Vl-Vl and V2-V2, respectively, wherein the vertical planes contain these lines and extend in a direction perpendicular to the paper.

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

Abstract

The use of a fastener (22) for joining two or more units of insulating material to each other. The fastener for use comprises a head (21) and a body (23) extending from its head. The body has an elongated shape comprising a first section and a second section, wherein this first section is connected to the head. The head may also be made of the same material as that of the first section and may be shaped in direct prolongation of the first section of the body and a method of joining two or more units of insulating material to each other.

Description

A method of joining two or more units of insulating material
The present invention relates to a method of joining two or more units of insulating material, as well as the use of a fastener for carrying out said method.
In many situations it is desired or even necessary to fasten insulating boards or units to each other. Mounting of insulating boards in buildings e.g. in walls, floor systems, roofing systems and particularly around profiles such as load-bearing profiles and through-going profiles therefore often requires the use of glue or other fastening means for fastening the insulating units to each other.
In most countries it is a requirement that • the load- bearing profiles and through-going profiles are insulated against fire so that the insulating layer can withstand fire for a certain time and e.g. keep the temperature of profiles of steel under the point of softening. In such situations it is absolutely necessary to fasten the units of insulating material to each other intimately around the profile to provide safe fire insulation around the profiles.
Likewise it is desired to fasten units of insulating material to each other in corners in general when placing insulating units around cables, pipes and similar elongated units as well as when fastening additional after-insulating units in a wall, floor or roof of a building. SE-C2-507549 discloses a fastening element and a method of fastening such insulating units to each other. This fastening element is in the form of a helix shaped screw composed of a helix formed head and a helix formed wire. The helix shaped screw is screwed into the insulating materials to be joined together. The joint provided by use of this helix shaped screw is generally acceptable. But since the workman often needs to use several or even many helix shaped screws in the mounting of insulating units, he normally has a large number of helix shaped screws in a box, and due to the shape of the helix shaped screws they get filtered into each other. Furthermore, the shape of the helix shaped screw also makes it difficult and time-consuming to use, particularly it is difficult to introduce the first turns of the helix shaped wire into the insulating material and the workman needs to use both hands to make sure that the helix shaped screw is positioned correctly.
The objective of the invention is thus to provide a method of joining two or more units of insulating material to each other which method does not have the drawbacks of the known methods as disclosed above.
In particular it is an objective of the invention to provide a method of joining two or more units of insulating material to each other which method is fast, simple and easy to practise compared to known methods.
These and other objectives have been achieved by the method and the use as defined in the claims.
The invention comprises the use of a fastener for joining two or more units of insulating material to each other. The fastener for use according to the invention comprises a head and a body extending from its head. The body has an elongated shape comprising a first section and a second section, wherein this first section is connected to the head. The head may also be made of the same material as that of the first section and may be shaped in direct prolongation of the first section of the body. A first horizontal plane is defined as the plane perpendicular to the extending direction of the first section of the body and containing the point of connection between the head and the body. In the fastener used according to the invention the second section is connected to the first section in an angle between 45 and 135 degrees, preferably between 85 and 95 degrees, and more preferably around 90 degrees relative to the first section.
In general the head of the fastener extends beyond the first horizontal plane as defined above. The head should preferably be in the form of a 0.5-10 mm thick disc arranged in said first horizontal plane. If the head is not arranged in the first horizontal plane, the head may protrude out of the connected insulation material units, and such protrusion is in general undesired.
The periphery of the disk may have any size and shape, provided that the head is sufficiently large to act as a hook and prevent the head from penetrating through the insulating unit. Preferably the head should be in the form of a disk with a periphery surrounding an area of at least 20 mm2, and if the insulating units contain mineral fibres, the area should preferably be at least 100 mm2. The shape of the head or the periphery is in general not important and may include any rounded shapes, e.g. oval or circular, as well as any angular shapes e.g. triangular, quadrangular, pentagonal, hexagonal, etc. To make it easy to turn the fastener about 90 degrees, the head should preferably have some kind of knot or recess e.g. one or more holes or grooves, which knot or recess fits into a tool e.g. a screwdriver or similar tool by use of which the fastener can be turned.
In a preferred embodiment the head arranged in said first horizontal plane is preferably made of the same material as that of the first section of the body and may be shaped in the form of an essentially circular spiral, which prolongs directly from the first section of the body.
The head could also preferably be covered by a capsule in order to minimize/prevent the filtering of the fasteners into each other. In the case of a spiral-shaped head, such filtering can also be minimized by letting the spiral close into itself/join itself.
The length of the body should be specific, selected for the particular use. The thicker the insulating units are, the longer the body should be. In general, the length of the body should be sufficiently long so that the fastener can penetrate at least 0.5, preferably at least 1 cm into the thickness of the outermost insulating unit (the unit farthest from the head of the fastener) , and penetrate the one or more other inner most insulating unit(s) . In most situations it is preferred that the length of the body should be between 10 and 200 mm, more preferably between 20 and 100 mm. The length of the body is defined as the perpendicular distance between the first horizontal plane and a second horizontal plane parallel to the first horizontal plane and containing a tangent to the point of the body farthest from the first horizontal plane.
In the fastener used according to the invention the second section is the first section in an angle between 45 and 135 degrees, preferably between 85 and 95 degrees, and more preferably around 90 degrees relative to the first section.
The second section of the body is connected to a protrusion from the first section of the body to provide an angle as described above between the first and the second section. The protrusion of the second section from the first section provides the body with a total width extension of the body which should preferably be between 3 and 40 mm, more preferably between 10 and 20 mm. The width extension of the body is defined as the maximum perpendicular distance between a first and a second vertical plane perpendicular to said first horizontal plane and touching said body.
The body may e.g. have a T-formed or L-formed shape, wherein the vertical part of the T or L constitutes the first section of the body, and the horizontal part of the T or L constitutes the second section of the body. Due to providing a fastener which is both cheap and easy to produce it is, however, preferred that the fastener is shaped as a bent nail.
The body may preferably have an angular or round cross- section i.e. be shaped as an angular or round rod e.g. being oval or circular, as well as any angular shapes e.g. triangular, quadrangular, pentagonal, and hexagonal, which rod preferably has a maximum diameter of between 0.5 and 5 mm.
The cross-section or the diameter of the body may preferably be substantially equal to the diameter in its first section and more preferably the second section may have a similar diameter throughout its length besides a tip portion, which tip portion comprises a cone-shaped tip.
The body and head may be made from similar or from distinct materials. Preferred materials for both head and body include any metals, preferably steel and brass, and further the preferred materials include polymers, preferably polymers with a relatively high flexural rigidity, e.g. polystyrene, polycarbonate, polypropylene and polyamide.
The second section of the body may e.g. be coated with an expandable composition i.e. a composition which expands when subjected to heat, moisture, microwave or similar. The expandable composition could preferably be glue or paint which expands under influence of heat. By using a fastener with a second section coated with an expandable composition, a further improved fastening of insulating units may be obtained.
The method according to the invention of joining two or more units of insulating material to each other comprises the steps of
i) providing two or more units of insulating material and placing them in the desired position in relation to each other, ii) providing one or more fasteners,
iii) inserting the one or more fasteners into the units of material to thereby join the units of insulating material together.
The fastener for use in the method may preferably comprise a head and a body extending from said head and have an elongated shape comprising a first section connected to the head and a second connected to said first section in an angle between 45 and 135 relative to the first section, said first and said second sections preferably being in the form of a bent rod. The fasteners described above are particularly useful in the method according to the claims.
The units of insulating material may in principle be of any type which can be penetrated by the fastener particularly foam e.g. polyurethane foam and mineral wool e.g. rock, slag, glass and similar vitreous materials.
The units of insulating material may have any desired size. The shape of the units of insulating material may also be as desired, but it is preferred that the surfaces of the units of insulating material which are supposed to face each other in the step of connection have shapes which correspond to each other to provide a tight connection. After the one or more fastener have been inserted, the fastener (s) are turned e.g. at least 5 degrees, preferably at least 45 degrees and most preferably around 90 degrees. The number of fasteners used connecting two or more units of insulating material to each other depends on the size of the units and the desired strength of the connection. The skilled person will by use of a few tests be able to find the optimal number of fasteners for a specific connection of units of insulating material.
The units to be connected are held together in the desired formation and the one or more fasteners are inserted into the units of material to thereby join the units of insulating material together. To provide a particularly tight connection of units of insulating material, the units of insulating material may be compressed during the fastening of the fasteners. Another or additional way to obtain a highly tight fastening is to further add glue between the surfaces to be connected. The amount of glue can be much lower than when using glue alone. Also it is possible to use glue with less tack as the fastener will hold the units of insulating material together.
It is preferred that the fastener is inserted into and penetrates a first unit and optionally further units of insulating material designated as the innermost unit(s) of insulating material, and therefrom further inserted partly into an outermost unit of insulating material and finally turned at least 5 degrees.
In a particularly preferred embodiment the outermost unit of insulating material, i.e. the unit of insulating material which is supposed to contain the second section of the body is in the form of an insulating material based on mineral wool. Such mineral wool insulating units generally comprise naturally formed layers, i.e. like layers in a book. In this embodiment it is preferred that the fastener while being inserted into the outermost unit is held in a position where it fits in between the layers of the outermost unit i.e. the second section is extending in the direction + about 15 degrees of the main direction of the layers of the outermost unit, more preferably, the fastener while being inserted into the outermost unit is held in a position where a third vertical plane containing the extension direction of the second section of the body is substantially parallel with the main direction of the layers of the outermost unit of insulating material, wherein the third vertical plane is perpendicular to the first horizontal plane.
In the following the invention will be described in further details with reference to the drawings.
Fig. 1 is a perspective view of a preferred fastener for use in the invention.
Fig. 2 is a side view of another fastener for use in the invention.
Fig. 3 is a side view of a third embodiment for use in the invention.
Fig. 4 is a top view showing the head of a fastener for use in the invention.
Fig. 5 is a top view showing another head of a fastener for use in the invention.
Fig. 6 is a top view showing another head of a fastener for use in the invention. Fig. 1 shows a preferred fastener for use in the invention. The fastener comprises a head 1 and a body 2. The body comprises a first section 3 connected to the head and a second section 4, connected to the first section. As shown in fig. 1 the body sections 3 and 4 may be made in one part and bent to provide the preferred angle A.
The head 1 is connected to the body 2, in a connection point 5. The body 2 is shaped as a round rod with a substantially circular cross-section. The diameter of the body 3 is substantially equal in both its first section 3 and its second section 4 besides a tapering tip portion
6.
The head 1 is shaped as a thin disk with a substantially circular periphery.
As shown in fig. 4 and fig. 5 the head may have many other shapes. The head 41 shown in fig. 4 is square formed head with a transverse groove 42. When the fastener has been inserted into the insulating units, it can be turned by use of a tool e.g. in the form of a screwdriver fitting into the groove 42. The head 51 shown in fig. 5 has a substantially circular periphery and comprises two depressions or through-going holes 52 for inserting a tool and turning the fastener as described above. The head 61 shown in figure 6 is shaped as an essentially circular spiral which may prolong directly from the first section of the body. The exterior arm 62 of the spiral comprising the head may close into itself so as to provide a contact point 63, thereby preventing the filtering of the fasteners into each other. The vertical plane defined by the first portion 64 of the circular spiral comprising the head 61 is substantially parallel to the vertical plane defined by the length direction of the second section of the body. This feature allows the user to known the orientation of said second section while installing the fasteners.
Fig. 2 shows a variation of the fastener of fig. 1 for use in the invention. The fastener comprises a head 21, and a body 22. The body comprises a first section 23 connected to the head and a second section 24, connected to the first section. As shown in fig. 2 the body sections 23 and 24 may be made in one part and bent to provide the preferred angle A which in the fastener of fig. 2 is smaller than in the fastener of fig. 1.
A similar fastener is shown in fig. 3. The fastener comprises a head 31 and a body 32. The body comprises a first section 33 connected to the head and a second section 34, connected to the first section. The first and second sections of the body 32 are shaped as a T and thereby provides two angles Al and A2 which are substantially equal to each other. In a non-shown variant of this embodiment shown in fig. 3, the angles Al and A2 may vary individually from each other, but preferably within the interval between 45 and 135 degrees.
In figs. 2 and 3 the first and the second horizontal planes are indicated with the lines HI—HI and H2-H2, respectively, wherein the horizontal planes contain these lines and extend in a direction perpendicular to the paper. The first and the second vertical planes are indicated with the lines Vl-Vl and V2-V2, respectively, wherein the vertical planes contain these lines and extend in a direction perpendicular to the paper.

Claims

P a t e n t C l a i m s :
1. Use of a fastener for joining two or more units of insulating material to each other, wherein said fastener comprises a head and a body extending from said head, and said body having an elongated shape comprising a first section and a second section, wherein said first section is connected to the head and defining a first horizontal plane perpendicular to the extending direction of the first section of the body, and the second section is connected to said first section in an angle between 45 and 135 degrees, preferably between 85 and 95 degrees, and more preferably around 90 degrees relative to the first section.
2. Use of a fastener according to claim 1 wherein said head extends beyond the first section in a first horizontal plane perpendicular to the extending direction of the first section of the body, said head preferably being in the form of a disc being 0.5-10 mm thick arranged in said first horizontal plane.
3. Use of a fastener according to claim 1 wherein said head extends beyond the first section in a first horizontal plane perpendicular to the extending direction of the first section of the body, said head preferably being shaped in the form of a circular spiral arranged in said first horizontal plane.
4. Use of a fastener according to claim 3 wherein said circular spiral may preferably prolong directly from the first section of the body.
5. Use of a fastener according to claim 3 or 4 wherein said circular spiral comprises an exterior arm, said arm may close into itself so as to provide a contact point, thereby preventing the filtering of the fasteners into each other.
6. Use of a fastener according to any one of claims 1-5 wherein the length of the body is between 10 and 200 mm, preferably between 20 and 100 mm, said length of the body being defined as the perpendicular distance between the first horizontal plane and a second horizontal plane parallel to the first horizontal plane and containing a tangent to the point of the body farthest from the first horizontal plane.
7. Use of a fastener according to any one of claims 1-6, wherein the second section of the body is protruding from the first section of the body to thereby provide a total width extension of the body being between 3 and 40 mm, preferably between 10 and 20 mm, said width extension of the body being defined as the maximum perpendicular distance between a first and a second vertical plane perpendicular to said first horizontal plane and touching said body.
8. Use of a fastener according to any one of the preceding claims wherein the body is shaped as an angular or round rod, preferably having a maximum diameter of between 0.5 and 5 mm.
9. Use of a fastener according to claim 8 wherein the body is shaped as a round rod having substantially equal diameter in its first section, and preferably said second section having a similar diameter throughout its length besides a tip portion, which tip portion comprises a cone shaped tip.
10. A method of joining two or more units of insulating material to each other which method comprising the steps of
i) providing two or more units of insulating material and placing them in the desired position in relation to each other,
ii) providing one or more fasteners,
iii) inserting the one or more fasteners into the units of material to thereby join the units of insulating material together,
wherein at least one of said fasteners comprises a head and a body extending from said head, and having an elongated shape comprising a first section connected to the head and a second section connected to said first section in an angle between 45 and 135 relative to the first section, said first and said second sections preferably being in the form of a bent rod.
11. A method according to claim 10 wherein said method includes the use of a fastener as defined in any one of the claims 1-9.
12. A method according to claim 10, including the step of using the fastener by inserting it into and to penetrate one or more innermost unit(s) of insulating material and inserting it partly into an outermost unit, and turning the fastener at least 5 degrees, preferably at least 45 degrees and most preferably around 90 degrees.
13. A method according to claim 12, wherein said outermost unit of insulating material being mineral wool comprising naturally formed layers, and said second section of the body is extending in a direction from said first section of the body lying in a third vertical plane perpendicular to said first horizontal plane, and wherein said fastener while being inserted into the outermost unit is held in a position where the third vertical plane is substantially parallel with the direction of the layers .
EP02709988A 2001-02-01 2002-01-31 A method of joining two or more units of insulating material Withdrawn EP1356170A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DKPA200100165 2001-02-01
DK200100165 2001-02-01
PCT/DK2002/000072 WO2002061217A1 (en) 2001-02-01 2002-01-31 A method of joining two or more units of insulating material

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EP1356170A1 true EP1356170A1 (en) 2003-10-29

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EP02709988A Withdrawn EP1356170A1 (en) 2001-02-01 2002-01-31 A method of joining two or more units of insulating material

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PL (1) PL364103A1 (en)
WO (1) WO2002061217A1 (en)

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PL364103A1 (en) 2004-12-13

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