AU2003242835B9 - Wall stud - Google Patents

Wall stud Download PDF

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Publication number
AU2003242835B9
AU2003242835B9 AU2003242835A AU2003242835A AU2003242835B9 AU 2003242835 B9 AU2003242835 B9 AU 2003242835B9 AU 2003242835 A AU2003242835 A AU 2003242835A AU 2003242835 A AU2003242835 A AU 2003242835A AU 2003242835 B9 AU2003242835 B9 AU 2003242835B9
Authority
AU
Australia
Prior art keywords
wall stud
stud according
sidewalls
stud
wall
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.)
Ceased
Application number
AU2003242835A
Other versions
AU2003242835B2 (en
AU2003242835A1 (en
Inventor
Christopher Walker
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.)
Etex Australia Pty Ltd
Original Assignee
Knauf Plasterboard Pty Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9937889&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU2003242835(B9) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Knauf Plasterboard Pty Ltd filed Critical Knauf Plasterboard Pty Ltd
Publication of AU2003242835A1 publication Critical patent/AU2003242835A1/en
Publication of AU2003242835B2 publication Critical patent/AU2003242835B2/en
Application granted granted Critical
Publication of AU2003242835B9 publication Critical patent/AU2003242835B9/en
Assigned to Knauf Plasterboard Pty Limited reassignment Knauf Plasterboard Pty Limited Request for Assignment Assignors: LAFARGE PLATRES
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • E04B2/7407—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts
    • E04B2/7409—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts special measures for sound or thermal insulation, including fire protection
    • E04B2/7412—Posts or frame members specially adapted for reduced sound or heat transmission
    • 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
    • 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
    • E04B2/76—Removable non-load-bearing partitions; Partitions with a free upper edge with framework or posts of metal
    • 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
    • E04B2/76—Removable non-load-bearing partitions; Partitions with a free upper edge with framework or posts of metal
    • E04B2/78—Removable non-load-bearing partitions; Partitions with a free upper edge with framework or posts of metal characterised by special cross-section of the frame members as far as important for securing wall panels to a framework with or without the help of cover-strips

Landscapes

  • Architecture (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Structural Engineering (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Thermal Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Building Environments (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Load-Bearing And Curtain Walls (AREA)

Abstract

A wall stud has two sidewalls interconnected by a spanning web that includes first and second portions connected to respective sidewalls and being connected themselves by a curved member, preferably of semicircular shape. The curved member also has at least one row of longitudinal slots formed along its length. Sound insulating material may be packed within the stud.

Description

SWALL STUD 0 N, The present invention relates to a wall stud having improved acoustic and mechanical ;properties.
A common building technique for the fabrication of building walls, and in particular internal walls, is to fasten sheets of walling material, such as plasterboard, to vertical t channel section beams known as wall studs. Typically, each stud is secured to a 00 horizontal beam or channel secured to either the floor or ceiling of the room in which the interior wall is being constructed. This wall construction technique is both relatively Ssimple and inexpensive and further allows existing room spaces to be subdivided if 10 required, for example when altering the use of an existing building.
(,i Rather than fasten a sheet of plasterboard to either side of the same wall stud, it is common practice to use two rows of parallel wall studs and fasten a single sheet of plasterboard to the outside faces of each of the paired studs. This is done to create a relatively large air gap within the resulting wall that provides low frequency sound is insulation.
However, this kind of 'double stud' construction usually requires some form of brace to be fastened between parallel studs spanning the air gap to give the structure adequate strength. As the brace provides a necessarily stiff connection between studs, it also provides a bridging sound transmission point, reducing the sound insulating performance of the wall. Although attempts have been made to overcome this problem by providing the braces with resilient portions intended to reduce their sound transmission properties, it remains less than totally satisfactory.
Furthermore, by using a double row of studs for a single wall, the cost of materials used, and time required to install two rows of tracks, is significantly increased over the costs that would be incurred ifa single stud construction could be used.
OBJECT OF THE INVENTION It is the object of the present invention to overcome or ameliorate one or more of the disadvantages of the prior art, or at least to provide a useful alternative.
According to a first aspect of the present invention there is provided a wall stud comprising two opposing sidewalls interconnected by a spanning web, the spanning web comprising first and second substantially planar members connected to the respective 915219 I:TCW O sidewalls and a substantially semicircular member interconnecting the first and second Splanar members, the substantially semicircular member having at least one row of ;elongate slots formed therein along a longitudinal axis thereof.
It is therefore possible to provide a channel section wall stud in which the single web interconnecting the two sidewalls to which respective sheets of walling material will be t fastened has a cross section corresponding substantially to a letter C having elongate 00 sidearms.
r Additionally or alternatively, the curved member has a plurality of rows of elongate slots formed therein, adjacent rows being longitudinally offset from one another. The slots are S io preferably at least twice the length of the interconnecting portions of the curved member.
Optionally, the width of the curved member the diameter of the semicircular embodiment) is approximately equal to the width of each of the first and second planar members.
Preferably, the curved member is substantially semicircular.
At least one of the sidewalls, and more preferably both, has a longitudinal acute groove, for example, a V-shaped groove, extending over at least a portion of the length of the stud. Additionally, the acute groove is located substantially midway across the width of the sidewall.
Preferably, at least one of the surfaces of the sidewalls facing away from each other has a plurality of depressions formed therein. Additionally, the depressions may be pyramidal in shape. Additionally or alternatively, the depressions may be formed by a deep knurling process and/or a corrugating process. The depressions increase the stiffness of the sidewalls, thus making it easier to fasten wall boards to the stud.
Optionally, a first non-woven tissue may extend across opposing edges of the curved member, whereby an enclosed space is defined between the non-woven tissue and the 915219 I:TCW WO 03/102322 PCT/GB03/02365 3 curved member, and a second non-woven tissue may extend between the opposing sidewalls.
Alternatively, a sheet of material having sound insulating properties may extend between the opposing sidewalls. The sheet of material may comprise glass or rock mineral wool matting, spun bonded polyester wool foamed plastics, or any other suitable sound absorbing material.
Embodiments of the present invention are described below, as illustrative examples only, with reference to the accompanying drawings, of which: Figure 1 is a plan view of a wall stud according to an embodiment of the present invention; Figure 2 is a front perspective view of the wall stud shown in Figure 1; Figure 3 is a front view of a wall stud according to a second embodiment of the present invention; Figure 4 is a front view of a wall stud according to a third embodiment of the present invention; Figure 5 is a front view of an alternative embodiment of the present invention; Figure 6 is a plan view of a wall stud according to a second embodiment of the present invention; and Figure 7 is a plan view of a wall stud according to a further embodiment of the present invention.
Figure 8 schematically illustrates a stud wall construction according to the prior art; and WO 03/102322 PCT/GB03/02365 4 Figure 9 schematically illustrates a stud wall construction using a stud according to an embodiment of the present invention.
Figure 1 illustrates in plan view a first embodiment of the present invention. The stud 2 has first and second sidewalls 4, 6 to which, in use, sheet walling material, indicated by chained lines 8, 10 can be attached. The sidewalls 4, 6 are substantially parallel to one another and/or substantially equal in width, their length being equal to the length of a wall stud and therefore equivalent to the height of the wall being constructed. Interconnecting the sidewalls 4, 6 along respective edges is a spanning web 12 that comprises first and second planar portions 14, 16 projecting from the respective sidewalls 4, 6 and a curved member 18 interconnecting the first and second planar portions. In the embodiment shown in Figure 1, the curved member is semicircular, such that should two identical wall studs be brought together with their spanning webs 12 adjacent to one another, the respective curved members 18 will form a complete circle. Additionally, in-turned flanges 20, 22 extend inwards from the free edges of the sidewalls 4, 6 and are substantially parallel to the portions 14, 16.
Figure 2 shows a front perspective view of the stud shown in Figure 1 and it can be seen that the curved member 18 has a number of longitudinal slots 24 formed along its length and, in the embodiment shown, along the central axis of the curved member 18. In preferred embodiments the length of the longitudinal slots 24 is at least twice that of the interconnecting portions of the curved member 18. Contrary to expectations, it has been found that the provision of the curved member 18 and the slots 24 do not significantly weaken the wall stud when compared with standard studs. It is thought that the curved member 18 introduces sufficient resilience to the wall stud to allow some flexing of the stud, which absorbs some of the vibrational energy imparted to the wall stud 2 by soundwaves incident on the sheet wall members 8, 10. It is thought that the longitudinal slots 24 further improve the sound insulating qualities of the stud 2 by providing a physical break in the transmission path of the sound vibrations through the curved member 18. The slots 24 also minimise the material used in spanning web 12.
WO 03/102322 PCT/GB03/02365 Also visible in Figure 2, are the plurality of pyramid shaped depressions 26 that are formed in the outside surfaces of the sidewalls 4, 6. The depressions are preferably formed by deep knurling the sidewalls 4, 6 during manufacture of the stud 2, although other suitable manufacturing processes may also be used. Equally, other shaped depressions may additionally or alternatively provided, such as corrugations. Each depression is preferably 2mm square and 2mm in-depth and are formed in a repeating pattern 2mm apart from one another. The depressions increase the stiffness of the sidewalls making it easier to attach sheets of wall material to them, for example using screws. Also more clearly visible in Figure 2 are acutely angled grooves 28, 30 formed within the respective sidewalls 4, 6 and directed towards each other.
Preferred dimensions for the wall stud 2 are as follows: The spanning web 12 may be between 40mm and 150mm in width.
The width of the curved member 18, or diameter, may be approximately /3 of the total width of the spanning web 12, with the curved member 18 located substantially centrally in the web.
The width of the sidewalls 4, 6 may be between 32mm and 52mm.
The width of the interned flanges 20, 22 may be between 6mm and 12mm.
The length of the slots 24 may be approximately The separation of the slots 24 may be between 10mm and 25mm the length to separation ratio of the slots is approximately 3:1).
The width of the slots 24 is approximately between 1mm to 4mm.
Figure 3 illustrates a further embodiment of the present invention in which more than a single row of elongate slots are provided along the length of the curved member 18. In the WO 03/102322 PCT/GB03/02365 6 embodiment shown in Figure 3 a first and second row of slots 24, 25 is provided, with the second row of slots 25 being displaced along the length of the curved member 18 by approximately half the length of a slot with respect to the first row of slots 24. The two rows of slots are equally spaced apart across the curved member 18.
Figure 4 illustrates a further embodiment having a first, second and third row of elongate slots 24, 25, 27 provided along the length of the curved member 18, with the third, middle, row of slots 27 being displaced relative to the first and second rows 24, 25. In other embodiments further rows of slots may be provided, preferably equally spaced around the curved member 18.
By providing multiple rows of elongate slots the ability of the stud to transmit sound waves is further reduced. In the illustrated embodiments it is preferred to displace the rows of slots with respect to one another to maintain sufficient strength within the stud. However, other arrangements of the rows of slots may be utilised in conjunction with appropriate stud materials and the illustrated embodiments are not to be considered as limiting the scope of the present invention.
A further embodiment of a wall stud according to an embodiment of the present invention is shown in Figure 5. As in Figures 1 to 4, the stud includes first and second planar portions 14, 16 interconnected by a curved member. In the embodiment of Figure 5, a row of diagonal slots 24' is provided in the curved member. The slots extending across a substantial proportion of the circumference of the curved member but not across its entirety.
Figure 6 illustrates a plan view a further embodiment of wall stud according to the present invention. The stud 2 has a non-woven fibreglass tissue 32 extending across the open face of the curved member 18 and attached to a first and second portions 14, 16 of the spanning web 12. A second non-woven tissue 34 extends between opposing surfaces of the sidewalls 4, 6. The provision of the non-woven fibreglass tissue increases the sound absorbing performance of the wall stud 2.
WO 03/102322 PCT/GB03/02365 7 Figure 7 shows an alternative embodiment of wall stud according to the present invention in which a sheet of sound absorbing material 36 extends between opposing faces of the sidewalls 4, 6, substantially filling the space defined by the sidewalls and spanning web 12 of the stud 2. The sound absorbing material 36 may be fibreglass insulation, spun bonded polyester wool, or any other suitable material. As for the embodiment shown in Figure 3, the embodiment shown in Figure 4 provides an improved sound insulation performance for the stud 2. Both of the embodiments shown in Figures 3 and 4 reduce the sound transmission across the stud by approximately 2dB.
A stud wall construction according to prior art techniques is schematically illustrated in Figure 8. Two parallel vertical studs 81 and 82 are provided, to each of which a single sheet of plasterboard or other walling 83 is fastened. Each row of studs is located in an upper and lower horizontal track. To add structural rigidity to the wall construction a brace 84 is fastened between the studs 81, 82. The brace 84 has a resilient section 85 formed by folded sections of the brace in an effort to reduce its sound transmission qualities.
This is contrasted by the stud wall construction illustrated in Figure 9 using a stud 2 in accordance with embodiments of the present invention. In the illustrated embodiment the stud 2 used is substantially larger than the prior art studs 81, 82 shown in Figure 8 and is located in appropriately sized single upper and lower tracks. This allows sheets of plasterboard 83 to be fastened to the outer face of the opposing sidewalls of the stud 2, whilst still providing an air gap between the plasterboard sheets that is substantially the same as that provided by the prior art stud wall construction illustrated in Figure 8. The curved member 18 of the stud 2 provides similar resilience as that provided by the resilient portion 85 of the prior art brace 84.

Claims (12)

1. A wall stud comprising two opposing sidewalls interconnected by a spanning web, the spanning web comprising first and second substantially planar members connected to the respective sidewalls and a substantially semicircular member interconnecting the first and second planar members, the substantially semicircular member having at least one row of elongate slots formed therein along a longitudinal axis thereof.
2. A wall stud according to claim 1, wherein a plurality of rows of elongate slots are formed along a longitudinal axis of the curved member, adjacent rows lo of elongate slots being longitudinally offset from one another.
3. A wall stud according to claim 1 or 2, wherein the length of the elongate slots is at least twice the length of the interposed portions of the substantially semicircular member.
4. A wall stud according to any preceding claim, wherein the width of the substantially semicircular member is approximately equal to the width of each of the first and second planar members.
A wall stud according to any preceding claim, wherein at least one of the sidewalls has a longitudinal acute groove.
6. A wall stud according to claim 5, wherein the acute groove is located substantially midway across the width of the sidewall.
7. A wall stud according to any preceding claim, wherein at least one of the surfaces of the sidewalls facing away from one another has a plurality of depressions formed therein.
8. A wall stud according to claim 7, wherein said depressions are pyramidal in shape.
9. A wall stud according to claim 7 or 8, wherein said depressions are formed by a deep knurling process.
A wall stud according to any preceding claim, wherein a first non-woven tissue extends across opposing edges of the substantially semicircular member, whereby an enclosed space is defined between said non-woven tissue and the substantially semicircular member, and wherein a second non-woven tissue extends between said opposing sidewalls.
11. A wall stud according to any one of claims 1 to 9, wherein a sheet of material having sound insulating properties extends between the opposing sidewalls. 915219 I:T'CW O
12. A wall stud according to claim 11, wherein said sheet of material N comprises glass or rock mineral wool, spun bonded polyester wool or foamed plastic. S13. A wall stud substantially as hereinbefore described with reference to SFigs. 1 and 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, or Fig. 7 of the accompanying drawings. Dated 21 August, 2007 Lafarge Platres 00 Patent Attorneys for the Applicant/Nominated Person SPRUSON FERGUSON 915219 1:TCW
AU2003242835A 2002-05-31 2003-05-30 Wall stud Ceased AU2003242835B9 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB0212734.8A GB0212734D0 (en) 2002-05-31 2002-05-31 Wall stud
GB0212734.8 2002-05-31
PCT/GB2003/002365 WO2003102322A1 (en) 2002-05-31 2003-05-30 Wall stud

Publications (3)

Publication Number Publication Date
AU2003242835A1 AU2003242835A1 (en) 2003-12-19
AU2003242835B2 AU2003242835B2 (en) 2007-10-18
AU2003242835B9 true AU2003242835B9 (en) 2008-06-12

Family

ID=9937889

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003242835A Ceased AU2003242835B9 (en) 2002-05-31 2003-05-30 Wall stud

Country Status (14)

Country Link
US (1) US20060185315A1 (en)
EP (1) EP1513989B1 (en)
KR (1) KR20060063529A (en)
CN (1) CN100451260C (en)
AT (1) ATE346197T1 (en)
AU (1) AU2003242835B9 (en)
BR (1) BR0311569A (en)
DE (1) DE60309867T2 (en)
ES (1) ES2277111T3 (en)
GB (2) GB0212734D0 (en)
PL (1) PL209868B1 (en)
PT (1) PT1513989E (en)
WO (1) WO2003102322A1 (en)
ZA (1) ZA200409526B (en)

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PT1513989E (en) 2007-01-31
US20060185315A1 (en) 2006-08-24
PL209868B1 (en) 2011-10-31
ATE346197T1 (en) 2006-12-15
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ES2277111T3 (en) 2007-07-01
BR0311569A (en) 2005-03-01
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AU2003242835A1 (en) 2003-12-19
DE60309867D1 (en) 2007-01-04
WO2003102322A1 (en) 2003-12-11
ZA200409526B (en) 2005-09-28
EP1513989B1 (en) 2006-11-22
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PL372530A1 (en) 2005-07-25
CN100451260C (en) 2009-01-14

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