CA1310166C - Metal stud - Google Patents
Metal studInfo
- Publication number
- CA1310166C CA1310166C CA 600901 CA600901A CA1310166C CA 1310166 C CA1310166 C CA 1310166C CA 600901 CA600901 CA 600901 CA 600901 A CA600901 A CA 600901A CA 1310166 C CA1310166 C CA 1310166C
- Authority
- CA
- Canada
- Prior art keywords
- tabs
- web
- metal stud
- piece metal
- flange
- 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.)
- Expired - Lifetime
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 25
- 239000002184 metal Substances 0.000 title claims abstract description 25
- 238000010276 construction Methods 0.000 claims abstract description 10
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 5
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 238000009428 plumbing Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Landscapes
- Finishing Walls (AREA)
Abstract
ABSTRACT OF DISCLOSURE
METAL STUD
A one-piece metal stud comprises a longitudinal web with generally centrally located punch outs forming alternately oriented bent tabs, a folded and hemmed front flange, and a back flange formed of alternately oriented bent tabs. The bent tabs are folded into a lip of double thickness and extend back past the web in a single thick-ness. The punch out tabs and the back flange tabs form channels therebetween on each side of the web for holding a separate wallboard panel in each channel. A further wallboard panel or panels can be fastened to the front flange or to both the front flange and back flange tabs to complete formation of a double-wall or cavity wall construction.
METAL STUD
A one-piece metal stud comprises a longitudinal web with generally centrally located punch outs forming alternately oriented bent tabs, a folded and hemmed front flange, and a back flange formed of alternately oriented bent tabs. The bent tabs are folded into a lip of double thickness and extend back past the web in a single thick-ness. The punch out tabs and the back flange tabs form channels therebetween on each side of the web for holding a separate wallboard panel in each channel. A further wallboard panel or panels can be fastened to the front flange or to both the front flange and back flange tabs to complete formation of a double-wall or cavity wall construction.
Description
~ ~31~6 FIELD OE THE INV~NTI~N
The present invention relates to the field of wall studs, and more particularly to a one-piece metal wall stud for use as a supporting m~mber in a double-wall or cavity wall construction.
BACKG~OUND OF THæ INVENTION
A number of types of metal wall studs are currently used in the building industry, for example those disclosed `- ~ in U.S.P. 4,435,936 as invented hy E. Rutkowski and issued 10 on 03/13/84 and U.S.P. 3,839,839 as invented by P. ~illisch et al and issued on 10/08/74. The latter discloses a stud which defines two channels for holding wallboard panels, one of the channels being solid throughout its length whereas the other channel is solid on one side and intermittent on 15 the other. The first patent discloses a stud defining two channels, both of which are solid on one side and inter-mittent on the other, thereby using less material than the prior art taught. However, the fre~uent use for such metal studs in ~ire-rated walls, such as sha~t walls and stair-20 walls has fueled a continuing goal in the industry toprovide a stud which is better suited for use in a fire-rated wall; a stud which requires even less metal to make, thereby less costly and lighter, and which is easier to use in constructing a wall.
OBJ~CTS OF TH~ INVENTION
Accordingly, it is the object of the present invention to provide a one-piece metal stud which is light in weight, has good structural and thermal characteristics for use in a fire-xated wall! and which simplifies assembly of the wall.
It is a further object of the present invention to . . ~ .
1 3 ~
provide a one-piece metal stud which enables the passage of electrical, telephone and mechanical service lines, and air, through the stud without interfering with the adjacent wallboard panels.
BRIEF DESCRIPTIO~ OF THE INVENTION
Broadly stated, the present invention is directed to a one-piece metal stud compricing:
a longitudinal web with generally centrally located punch outs forming alternately oriented bent tabs substantially perpendicular to the web;
a folded and hemmed front flange substantially perpendicular to the web;
a back flange formed of alternately oriented bent tabs substantially perpendicular to the web, the bent tabs being folded over into a lip of double thickness and extending back past the web in a single thickness;
the punch out tabs and the back ~lange tabs being spaced apart and substantially parallel to one another thereby forming a channel therebetween on each side of the : 20 web;
whereby a separate wallboard panel can be held in each channel and a further wallboard panel or panels can be fastened to the front flanga or to both the front flange and the back flange tabs to complete formation of a double-wall or cavity wall construction.
The present invention is also directed to a fire-rated wall comprising a plurality of spaced apart one-piece metal studs, wherein said studs are mounted in parallel relation with wallboard panels mounted therebetween, whereby a first set of separate wallboard panels are held in each channel ~ ~ 3 ~ 3 ~
and a third wallboard panel is fastened to the ~ront ~lange.
BRIEF DESCRIPTION OF THE DR~WIN&S
Referring now to the drawings which illustrate the invention.
Figure 1 is a fragmentary perspeckive view of a wall stud pursuant to the present invention; and Figure 2 is a sectional view of the stud in Figure l taken along line 2-2, with wallboard panels attached thereto.
DETAILED D~SCRIPTION OF THE PREFERRED EMBODINENT
As can be seen ~rom Figure l, the stud l of the present invention is made of sheet of light gauge metal, such as steel or aluminum, roll formed and tab punched as a one-piece unit. Stud l includes a longitudinal web 2 separating a folded and hemmed front ~lange 3 and a back flanye 4. Front flange 3 is such that it extends substantially perpendicularly away from web 2, is folded over into a double thickness which further extends past web ; 2 into a single thickness and is finally folded and hemmed back towards web 2. Back flange 4 is formed of alternately oriented bent tabs 5. Each tab 5 extends substantially perpendicularly from web 2, is folded over into a lip 10 of double thickness which extends back past web 2 in a single thickness. Lip 10 is of a width W10 which is generally substantially less than the single thickness portion being of a width W5.
Web 2 is provided with generally centrally located punch outs 6 fc>rming alternately oriented bent tabs 8 substantially perpendicular to the web, and spaced apart and 30 substantially parallel to the alternately oriented bent tabs . . .
_ 5 ~31~
5 so as to form channels 9 therebetween on each side of web 2 for holding a separate wallboard panel 7 in each channel 9, as seen in Figure 2. Tabs 8 and tabs 5 are generally immediately vis-à-vis one another to provide a good holding grip on the wallboard panels. The spaced apart height Hg of channels 9 is substantially e~qual to the thickness o~
panel 7. The height H2 of web 2 is generally more than twice height Hg of channels 9.
Width W10 of lip 10 is preferably of a width to enable the edge of panels 7, adjacent web 2, to be hidden from view. This is particularly useful, ~or during construction, one will quickly be able to det~rmine by visual inspection of flange 4, if panels 7 are properly positioned and held in channels 9. Furthermore, this will provide a preferred joint between panels 7 without requiring additional tape or other means to hide the joint. Lip 10 will also be sufficient to hold the wallboard panels to prevent them from warping between tabs 5.
As also seen in Figure 2, a further wallboard panel or panels 71 can be fastened by known means to front flange 3 to complete formation of a single faced double wall construction. Alternately, a further wallboard panel or panels 72 can be fastened by known means to the back flange tabs 5 to complete formation of a double faced wall construction.
In a preferred embodiment, tabs 5 have a length L5 generally greater than the length L8 of tabs 8. The single thickness portion of tabs 5 have a width W5 substantially equal to width W8 of tabs 8. Width W5 of the single thickness portion of tabs 5 is substantially a equal to one-half of the width W3 of front flanye 3.
Punch outs 6 are generally in the portion of web 2 between punch out tabs 8 and front flange 3, and they permit the passage of cooling air alQng the interior of the double-wa71 constructions as well as electrical or telephone cables, plumbing or other mechanical service lines. The wallboard panels 7, 71 and 72 are generally made o~
gypsum .
The above-described configuration and relative dimensions of the component parts of the one-piece stud provide sturdy support for the aligned wallboard panels in the channels and easy assembly of a double-wall construc-tion. The above dimensions are maant as an example of an embodiment and not as a limitation. The stud is ideally suited for use in various fire-ratad shaftwall, stairwall, ceiling or partition assemblies and resists deflection from lateral pressures. The stud is formed of a minimum amount of metal and hence at a lower cost.
Such a fire-rated wall will thus comprise a plurality o~ the present matal stud 1, spaced apart and in parallel relation, with a first set of wallboard panels 7 there-between and held in each channel and a third wallboard panel~s) 71 suitably fastened to front ~lange 3. An additional fourth wallboard panel(s) 72 may also be suitably fastened to back flange 4.
As an exampIe, when a stud of the present invention is compared to a stud as disclosed in U.S.P. 4,435,936, both having dimensions of 5cm ~or a web height and 4cm for ~ront flange width, the stud of the present invention uses around 25% less metal. Such a reduction in metal, and therafor in ~' ~ 3 ~
weight, can further bring reductions in shipping costs and also cause less exertion for the workers during construc-tion.
Having described the invention, modifications will be evident to those skilled in the art without departing ~rom the spirit of the invention, as defined in the appended claims.
, :
The present invention relates to the field of wall studs, and more particularly to a one-piece metal wall stud for use as a supporting m~mber in a double-wall or cavity wall construction.
BACKG~OUND OF THæ INVENTION
A number of types of metal wall studs are currently used in the building industry, for example those disclosed `- ~ in U.S.P. 4,435,936 as invented hy E. Rutkowski and issued 10 on 03/13/84 and U.S.P. 3,839,839 as invented by P. ~illisch et al and issued on 10/08/74. The latter discloses a stud which defines two channels for holding wallboard panels, one of the channels being solid throughout its length whereas the other channel is solid on one side and intermittent on 15 the other. The first patent discloses a stud defining two channels, both of which are solid on one side and inter-mittent on the other, thereby using less material than the prior art taught. However, the fre~uent use for such metal studs in ~ire-rated walls, such as sha~t walls and stair-20 walls has fueled a continuing goal in the industry toprovide a stud which is better suited for use in a fire-rated wall; a stud which requires even less metal to make, thereby less costly and lighter, and which is easier to use in constructing a wall.
OBJ~CTS OF TH~ INVENTION
Accordingly, it is the object of the present invention to provide a one-piece metal stud which is light in weight, has good structural and thermal characteristics for use in a fire-xated wall! and which simplifies assembly of the wall.
It is a further object of the present invention to . . ~ .
1 3 ~
provide a one-piece metal stud which enables the passage of electrical, telephone and mechanical service lines, and air, through the stud without interfering with the adjacent wallboard panels.
BRIEF DESCRIPTIO~ OF THE INVENTION
Broadly stated, the present invention is directed to a one-piece metal stud compricing:
a longitudinal web with generally centrally located punch outs forming alternately oriented bent tabs substantially perpendicular to the web;
a folded and hemmed front flange substantially perpendicular to the web;
a back flange formed of alternately oriented bent tabs substantially perpendicular to the web, the bent tabs being folded over into a lip of double thickness and extending back past the web in a single thickness;
the punch out tabs and the back ~lange tabs being spaced apart and substantially parallel to one another thereby forming a channel therebetween on each side of the : 20 web;
whereby a separate wallboard panel can be held in each channel and a further wallboard panel or panels can be fastened to the front flanga or to both the front flange and the back flange tabs to complete formation of a double-wall or cavity wall construction.
The present invention is also directed to a fire-rated wall comprising a plurality of spaced apart one-piece metal studs, wherein said studs are mounted in parallel relation with wallboard panels mounted therebetween, whereby a first set of separate wallboard panels are held in each channel ~ ~ 3 ~ 3 ~
and a third wallboard panel is fastened to the ~ront ~lange.
BRIEF DESCRIPTION OF THE DR~WIN&S
Referring now to the drawings which illustrate the invention.
Figure 1 is a fragmentary perspeckive view of a wall stud pursuant to the present invention; and Figure 2 is a sectional view of the stud in Figure l taken along line 2-2, with wallboard panels attached thereto.
DETAILED D~SCRIPTION OF THE PREFERRED EMBODINENT
As can be seen ~rom Figure l, the stud l of the present invention is made of sheet of light gauge metal, such as steel or aluminum, roll formed and tab punched as a one-piece unit. Stud l includes a longitudinal web 2 separating a folded and hemmed front ~lange 3 and a back flanye 4. Front flange 3 is such that it extends substantially perpendicularly away from web 2, is folded over into a double thickness which further extends past web ; 2 into a single thickness and is finally folded and hemmed back towards web 2. Back flange 4 is formed of alternately oriented bent tabs 5. Each tab 5 extends substantially perpendicularly from web 2, is folded over into a lip 10 of double thickness which extends back past web 2 in a single thickness. Lip 10 is of a width W10 which is generally substantially less than the single thickness portion being of a width W5.
Web 2 is provided with generally centrally located punch outs 6 fc>rming alternately oriented bent tabs 8 substantially perpendicular to the web, and spaced apart and 30 substantially parallel to the alternately oriented bent tabs . . .
_ 5 ~31~
5 so as to form channels 9 therebetween on each side of web 2 for holding a separate wallboard panel 7 in each channel 9, as seen in Figure 2. Tabs 8 and tabs 5 are generally immediately vis-à-vis one another to provide a good holding grip on the wallboard panels. The spaced apart height Hg of channels 9 is substantially e~qual to the thickness o~
panel 7. The height H2 of web 2 is generally more than twice height Hg of channels 9.
Width W10 of lip 10 is preferably of a width to enable the edge of panels 7, adjacent web 2, to be hidden from view. This is particularly useful, ~or during construction, one will quickly be able to det~rmine by visual inspection of flange 4, if panels 7 are properly positioned and held in channels 9. Furthermore, this will provide a preferred joint between panels 7 without requiring additional tape or other means to hide the joint. Lip 10 will also be sufficient to hold the wallboard panels to prevent them from warping between tabs 5.
As also seen in Figure 2, a further wallboard panel or panels 71 can be fastened by known means to front flange 3 to complete formation of a single faced double wall construction. Alternately, a further wallboard panel or panels 72 can be fastened by known means to the back flange tabs 5 to complete formation of a double faced wall construction.
In a preferred embodiment, tabs 5 have a length L5 generally greater than the length L8 of tabs 8. The single thickness portion of tabs 5 have a width W5 substantially equal to width W8 of tabs 8. Width W5 of the single thickness portion of tabs 5 is substantially a equal to one-half of the width W3 of front flanye 3.
Punch outs 6 are generally in the portion of web 2 between punch out tabs 8 and front flange 3, and they permit the passage of cooling air alQng the interior of the double-wa71 constructions as well as electrical or telephone cables, plumbing or other mechanical service lines. The wallboard panels 7, 71 and 72 are generally made o~
gypsum .
The above-described configuration and relative dimensions of the component parts of the one-piece stud provide sturdy support for the aligned wallboard panels in the channels and easy assembly of a double-wall construc-tion. The above dimensions are maant as an example of an embodiment and not as a limitation. The stud is ideally suited for use in various fire-ratad shaftwall, stairwall, ceiling or partition assemblies and resists deflection from lateral pressures. The stud is formed of a minimum amount of metal and hence at a lower cost.
Such a fire-rated wall will thus comprise a plurality o~ the present matal stud 1, spaced apart and in parallel relation, with a first set of wallboard panels 7 there-between and held in each channel and a third wallboard panel~s) 71 suitably fastened to front ~lange 3. An additional fourth wallboard panel(s) 72 may also be suitably fastened to back flange 4.
As an exampIe, when a stud of the present invention is compared to a stud as disclosed in U.S.P. 4,435,936, both having dimensions of 5cm ~or a web height and 4cm for ~ront flange width, the stud of the present invention uses around 25% less metal. Such a reduction in metal, and therafor in ~' ~ 3 ~
weight, can further bring reductions in shipping costs and also cause less exertion for the workers during construc-tion.
Having described the invention, modifications will be evident to those skilled in the art without departing ~rom the spirit of the invention, as defined in the appended claims.
, :
Claims (11)
1. A one-piece metal stud comprising:
a longitudinal web with generally centrally located punch outs forming alternately oriented bent tabs substan-tially perpendicular to the web;
a folded and hemmed front flange substantially perpen-dicular to the web;
a back flange formed of alternately oriented bent tabs substantially perpendicular to the web, the bent tabs being folded over into a lip of double thickness and extending back past the web in a single thickness;
the punch out tabs and the back flange tabs being spac-ed apart and substantially parallel to one another thereby forming a channel therebetween on each side of the web;
whereby a separate wallboard panel can be held in each channel and a further wallboard panel or panels can be fastened to the front flange or to both the front flange and the back flange tabs to complete formation of a double-wall or cavity wall construction.
a longitudinal web with generally centrally located punch outs forming alternately oriented bent tabs substan-tially perpendicular to the web;
a folded and hemmed front flange substantially perpen-dicular to the web;
a back flange formed of alternately oriented bent tabs substantially perpendicular to the web, the bent tabs being folded over into a lip of double thickness and extending back past the web in a single thickness;
the punch out tabs and the back flange tabs being spac-ed apart and substantially parallel to one another thereby forming a channel therebetween on each side of the web;
whereby a separate wallboard panel can be held in each channel and a further wallboard panel or panels can be fastened to the front flange or to both the front flange and the back flange tabs to complete formation of a double-wall or cavity wall construction.
2. A one-piece metal stud as defined by claim 1 wherein the spaced apart height of the channels is substantially equal to the thickness of wallboard panels which can be held in the channels.
3. A one-piece metal stud as defined by claim 1 wherein the height of the web is more than twice the spaced apart height of the channels,
4. A one-piece metal stud as defined by claim 1 wherein the length of the back flange tabs is greater than the length of the punch out tabs.
5. A one-piece metal stud as defined by claim 1 wherein the width of the single thickness portion of the back flange tabs is substantially equal to the width of the punch out tabs.
6. A one-piece metal stud as defined by claim 1 wherein the width of the single thickness portion of the back flange tabs is substantially equal to one-half the width of the front flange.
7. A one-piece metal stud as defined by claim 1 wherein the lip of double thickness is of a width which at least hides edges, adjacent the web, of wallboard panels which can be held in the channels.
8. A one-piece metal stud as defined by claim 1 wherein the punch outs are in a portion of the web between the punch out tabs and the front flange, thereby enabling the passage of at least one of the group comprising electrical cables, telephone cables, plumbing lines and mechanical service lines, without interfering with wallboard panels which can be held in the channels.
9. A one-piece metal stud as defined by claim 1 wherein the punch outs are in a portion of the web between the punch out tabs and the front flange, thereby enabling the passage of air from one side of the web to the other
10. A fire-rated wall comprising a plurality of spaced apart one-piece metal studs as defined by claim 1, wherein said studs are mounted in parallel relation with wallboard panels mounted therebetween, whereby a first set of separate wallboard panels are held in each channel and a third wallboard panel is fastened to the front flange.
11. A fire-rated wall as defined by claim 10, wherein a fourth wallboard panel is fastened to the back flange tabs.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/316,769 US4866899A (en) | 1987-04-01 | 1989-02-28 | Metal stud |
| US07/316,769 | 1989-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1310166C true CA1310166C (en) | 1992-11-17 |
Family
ID=23230601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 600901 Expired - Lifetime CA1310166C (en) | 1989-02-28 | 1989-05-26 | Metal stud |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1310166C (en) |
-
1989
- 1989-05-26 CA CA 600901 patent/CA1310166C/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |