The present invention relates to steel stud building wall systems and especially to apparatuses for stabilizing steel studs to prevent lateral movement and torsion in such systems.
Many buildings are constructed with steel stud wall framing. When a wall is built with any kind of stud, wood or steel, it is generally desirable to fix sequential studs relative to each other against lateral movement and torsion. In steel-stud walls, an elongated steel bridging member is typically inserted horizontally through pre-punched openings in a series of vertical studs to keep them aligned. Steel studs have excellent columnar strength when they are straight, but a significant portion of that strength is lost if the studs are twisted. Because steel studs are particularly vulnerable to torsion, the bridging members, which are typically channel-shaped, having a horizontal web and two vertical side flanges, are made to closely fit the openings in the vertical studs in order to maximize torque resistance. In additional to mechanical torque, metal studs can twist or bend in response to the heat of a fire when the drywall sheathing, which acts as a firebreak, is destroyed. When metal studs twist or bend, they lose their weight-bearing capacity, multiplying the damage caused directly by fire.
While channel-shaped bridging members closely received in the openings can help restrain the studs from twisting, some twisting can still occur and the studs can still shift or bend parallel to the wall. A variety of sheet metal brackets, beginning with a simple right angle, are used with channel-shaped bridging members to prevent this shifting or bending. These brackets can be connected to the studs and the bridging member by means of separate fasteners, interlocking sections on the bracket that engage one of the studs and the bridging member or a combination of fasteners and interlocking forms.
The prior art also includes short bridging members that span only adjacent studs and have ends tailored for fastening to the wall studs and/or to each other through extensions that are inserted through the openings in the wall studs. These bridging members are typically a fixed length. U.S. Pat. No. 6,164,028, granted to John P. Hughes teaches a system of connecting such short bridging members by forming one end of the web of each bridging member to extend through the opening in the stud and to closely receive the web of the stud on both sides, and then to attach the end of another bridging member to that extension.
The prior art also includes elongated bridging members with a series of slots that allow the bridging member to not only be inserted through the openings in the wall studs but also mate with the web of the wall studs on either side of the openings. U.S. Pat. No. 7,168,219, granted to William L. Elderson, teaches such bridging members. U.S. Pat. No. 7,168,219 also teaches a special bridging member that is designed to connect in this manner to just two side-by-side studs.
It is an object of the present invention to provide bridging members that can be installed quickly in a variety of wall environments and that can form a strong connection that resists both lateral and torsional loads.
The present invention provides a bridging member that when used in series with other bridging members firmly connects and stabilizes a building wall made up of steel studs. The bridging members pass through openings in each of the studs in the section of the wall. The bridging members are designed to keep the studs in alignment along the length of the wall when they are installed through the studs.
The present invention provides a bridging member with edges that interlock with the web of a wall stud to provide exceptional torsional rigidity. The edges are braced by the body plates of the bridging member and diagonally disposed flanges of the bridging member, allowing them to resist substantially high loads.
In the present invention, first and second laterally spaced studs are connected and braced by first and second bridging members. The studs are provided with a front face and an opposite face disposed laterally therefrom on the opposed face with an opening there through that communicates between the front face and the opposite face. The second stud is disposed substantially parallel to and spaced a selected distance away from the first stud with the opposite face of the second stud facing and being disposed parallel to the front face of the first stud.
In the present invention, first and second bridging members are provided to engage and be received through the openings in the first and second studs respectively. The first and second bridging members each have a longitudinal, central axis with a mounting section and opposed first and second connecting sections on either side of the mounting section along the longitudinal, central axis. The mounting section of the first bridging member is received in the opening of the first stud and the mounting section of the second bridging member is received in the opening of the second stud. The second connecting section of the first bridging member projects substantially away from the opposite face of the first stud and also from the opposite face of the second stud, and the first connecting section of the first bridging member projects away from the front face of the first stud and extends towards the opposite face of the second stud. The second connecting section of the second bridging member projects substantially away from the opposite face of the second stud and extends toward the front face of the first stud with the second connecting section of the second bridging member engaging the first connecting section of the first bridging member such that the second stud is braced by the first stud. The first connecting section of the second bridging member projects away from the front face of the second stud and projects away from the front face of the first stud.
The first connecting section of the second bridging member is available to be connected to the second connecting section of another bridging member made according to the present invention, as is the second connecting section of the first bridging member.
According to the present invention, one or more of the bridging members making the connections between the plurality of studs are provided with the mounting section having a first body part and a second body part connected thereto by means of a neck which can fit through the opening in a stud. The first and second body parts each have one or more side flanges attached thereto at an angle, and each body part also has a first inner edge with a first web interface portion and a second web interface portion, and when the bridging member engages a wall stud the first inner edges of the first and second body parts contact or are disposed closely adjacent to the web of a stud on the opposed faces of the stud.
According to the present invention, one or more of the bridging members making the connections between the plurality of studs are provided with the mounting section having a first body part and a second body part connected thereto by means of a neck which can fit through the opening in the stud. The first and second body parts each have one or more side flanges attached thereto at an angle, and the side flanges have inner edges that contact or lie closely adjacent to the central web of the wall stud when the bridging member engages the wall stud. The one or more side flanges are set at an acute angle with respect to the longitudinal, central axis of the bridging member such that the one or more side flange flares outwardly from the longitudinal, central axis as they approach the central web of the stud.
According to the present invention, the first body part and the second body part are substantially planar and lie in substantially the same plane.
According to the present invention, the first and second connecting sections of the first and second bridging members are channel shaped, and the first connecting section of each of the first and second bridging members has a first width, and the second connecting section of each of the first and second bridging members has a different second width, and one of the widths is slightly larger than the other such that connecting sections nestingly engage.
The present invention also encompasses making the connection between a plurality of studs with one or more of the bridging members of the present invention, wherein the first body parts of one or more bridging members are placed adjacent the central web of a plurality of wall studs so that the first inner edges of the first side flanges of the first body parts are adjacent the central web of the studs and fastening the second connecting sections of the bridging members to the first connecting section of the bridging members.
In the preferred embodiment, the diagonally disposed flanges of the mounting section of the bridging member meet with parallel elongated flanges of the first and second connecting sections of the bridging member that run parallel to the elongated, longitudinal axis of the bridging member.
According to the present invention, the first and second connecting sections of the bridging member can be a variety of lengths and notches can be provided in the elongated flanges of the connecting sections to allow for the trimming of the connecting sections. Preferably, the connecting sections are notched at selected locations that correspond to using a plurality of the bridging members together to span standard spacings between adjacent studs.
The exceptional strength of the interlocking connection between the bridging members and the wall studs allow the bridging members to be firmly connected to the wall studs without the use of fasteners.
As shown in
In the preferred embodiment, the bridging members 19 and 219 are identical except for their lengths. Preferably, the first and second connecting sections 61 and 261, 63 and 263 of the first and second bridging members 19 and 219 are channel shaped, and the first connecting section 61 and 261 of each of the first and second bridging members 19 and 219 has a first width, and the second connecting section 63 and 263 of each of the first and second bridging members 19 and 219 has a different second width, and one of the widths is slightly larger than the other such that connecting sections nestingly engage. As shown in the drawings the second connecting sections 63 and 263 are dimensioned to be received within the first connecting sections 61 and 261.
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Because the wall studs 2 and 202 and the bridging members 19 and 219 are typically made from sheet metal there are several major bends in both. Typically, the first side 4 and the second side 5 of the central web 3 of the wall stud 2 not only bound the central web 3 but also are bends as well as junctures between the central web 3 and the first and second side flanges 9 and 10 of the wall stud 2. There are bends and junctures between the first and second side flanges 9 and 10 where they meet the central web 3 of the wall stud 2, and there are also bends and junctures between the first and second side flanges 9 and 10, respectively, and the first and second stiffening flanges 57 and 58. Similarly, the first and second boundaries 13 and 14 of the first web 12 of the bridging members 19 are typically bends, as well as junctures between the first web 12 and the first and second boundary flanges 17 and 18. As shown in
The sheet metal of the first and second body plates 20 and 26 and the first and second webs 12 and 52 of the bridging members 19 can be embossed in order to stiffen these members, while the first and second bodies 20 and 26 remain substantially planar.
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Preferably, the interface portions 24, 25, 30 and 31 are always in contact with the central web 3 of the wall stud 2, but they may, due to differences in the thickness of the central web 3 of different wall studs, and otherwise imperfect tolerances, be adjacent to the central web 3 of the wall stud 2 without always being in contact. This is true generally of such a connection 1, in which elements are often imperfect.
Preferably, the neck 32 passes through the elongated opening 8 in the central web 3 of the wall stud 2. The first web interface portion 24 and the second web interface portion 25 of the first inner edge 23 preferably interface with either the inner surface 6 or the outer surface 7 of the central web 3 of the wall stud 2. The first web interface portion 30 and the second web interface portion 31 of the second inner edge 29 preferably interface with the other of the inner surface 6 and the outer surface 7 of the central web 3 of the wall stud 2. The neck 32 preferably is almost as wide as the typical elongate opening 8. Preferably, the first inner edge 23 of the most preferred embodiment is substantially wider than the opening 8 in central web 3 of the wall stud 2.
Preferably, the first body plate 20 has a first side boundary 33 and a second side boundary 34. A first side flange 35 is preferably attached to the first side boundary 33 and a second side flange 36 is attached to the second side boundary 34. The bridging member 19 is preferably made from sheet metal, preferably galvanized steel and the first and second side boundaries 33 and 34 are preferably bends in the material of the bridging connectors 19. As shown in
Most preferably, as shown in
The first and second side flanges 35 and 36 of the mounting section 62 of the present invention angle away from the first and second boundary flanges 17 and 18 of the first connecting section 61, so that the first and second side flanges 35 and 36 buttress the central web 3 where they interface with the central web, creating much greater resistance to lateral movement of the bridging member 19 than if the first and second side flanges 35 and 36 were parallel to the first and second boundary flanges 17 and 18 of the bridging member 19.
The first and second side flanges 35 and 36 are preferably straight and meet the first and second boundary flanges 17 and 18 at acute angles. This braces the interface between the first side flange 35 and the first boundary flange 17, and the interface between the first side flange 36 and the second boundary flange 18. The first and second side flanges 35 and 36 can also be curved.
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Preferably, the first side flange 43 of the second body 26 of the mounting member 62 interfaces with the first boundary flange 17 of the second connecting section 63, and the second side flange 44 of the second body 26 of the mounting section 62 interfaces with the second boundary flange 18 of the second connecting section 63.
The first and second side flanges 43 and 44 of the second body 26 of the mounting section 62 of the present invention angle away from the first and second boundary flanges 17 and 18 of the second connecting section 63, so that the first and second side flanges 43 and 44 buttress the central web 3 at their interfaces, creating much greater resistance to lateral movement of the bridging member 19 than if the first and second side flanges 43 and 44 were parallel to the first and second boundary flanges 17 and 18 of the second connecting section 63.
The third and fourth side flanges 43 and 44 are straight and meet the first and second boundary flanges 17 and 18 of the second web 52 at acute angles. This braces the interfaces between the third and fourth side flanges 43 and 44 and the first and second boundary flanges 17 and 18 from one direction.
As shown in
Preferably, the connection 1 of the present invention is formed according to the following steps. First, a first bridging member 19 is preferably inserted through the elongated opening 8 in the central web 3 of the vertical wall stud 2. Preferably, while it is being inserted, the bridging connector 19 is positioned so that the neck 32 of the bridging connector 19 is not orthogonal to the first and second elongated portions 66 and 67 of the elongated opening 8. The second body 26 and the second web 52 of the bridging member 19 are inserted through the elongated opening 8. Preferably, the bridging member 19 is rotated so that the neck 32 is orthogonal to the first and second elongated portions 66 and 67 of the elongated opening 8, the first web interface portion 24 and the second web interface portion 25 of the first inner edge 23 interface with the central web 3 of the wall stud 2, and the first web interface portion 30 and the second web interface portion 31 of the first inner edge 29 interface with the central web 3 of the wall stud 2. The first connecting section 61 of the first bridging member 19 is then connected to the second connecting section 263 of the second bridging member 219 which is received with its mounting section 262 engaging the second stud 202.
According to the present invention, the first and second connecting sections 61 and 63 of the first and second bridging members 19 and 219 are channel shaped, and the first connecting section 61 and 261 of each of the first and second bridging members 19 and 219 has a first width, and the second connecting section 63 and 263 of each of the first and second bridging members 12 and 219 has a different second width, and the first width of the first connecting section 61 and 261 is slightly larger than the second width of the second connecting section 63 and 263 such that the second connecting section 63 of one of the first and second bridging members can nestingly engage with the first connecting section 61 of the other of the first and second bridging members.
As shown in
It is possible to use additional fasteners 81 and have additional fastener openings 82 elsewhere on the bridging member 19, such as the first web 52.
As shown, the first body plate 20 is preferably installed against the front surface 6 of the central web 3 of the wall stud 2 where it is not bounded by the first and second side flanges 9 and 10 of the wall stud 2.
It is also possible, where the width of the wall stud 2 is sufficient, to install the bridging connector 19 with the first body plate 20 against the opposite surface 7 of the central web 3 of the wall stud 2, with the second body plate 26 against the front surface 6.
Other attachments, with or without separate fasteners 81, welds, or the like are possible between the bridging members 19, but it is desirable to use the minimum number of fasteners 81 because this saves time and material and related costs.
In the preferred embodiment, the bracing members 19 and 219 are designed to attach to only one stud 2 or 202 at the mounting section 62 and to interconnect the studs 2 and 202 by connecting to other bridging members 19 and 219, thus in the preferred embodiment the first bridging member 19 does not reach the opposite face 7 of the second stud 202, and does not make any contact with the second stud 202. Similarly, the mounting section 62 of the second bridging member 219 is attached to the second stud 202, and second bridging member 219 does not reach the front side 6 of the first stud 2, such that the second bridging member 219 does not make any contact with the second stud 2.
In the preferred embodiment, at least one of the first inner edge 23 of the first body part 20 and the first inner end edge 83 of the first side flange 35 braces the first bridging member 19 against the first wall stud 2.
The preferred method of making the connection between a plurality of studs 2 and 202 with one or more of the bridging members 19 and 219 of the present invention involves placing the first body parts 20 and 220 of one or more bridging members 19 and 219 adjacent the central web 3 and 203 of a plurality of wall studs 2 and 202 so that the first inner edges 83 and 283 of the first side flanges 35 and 235 of the first bodies 20 and 220 are adjacent the central web 3 and 203 of the studs 2 and 202 and fastening the second connecting sections 63 and 263 of the bridging members 19 and 219 to the first connecting sections 61 and 261 of the bridging members 19 and 219.
The first and second connecting sections 61 and 261, 63 and 263 of the bridging members 19 and 219 can be a variety of lengths and notches 54 and 254 can be provided in the elongated flanges 17 and 18, 217 and 218 of the connecting sections 61 and 261, 63 and 263 to allow for the trimming of the connecting sections 61 and 261, 63 and 263. As shown in the drawings, only the second connecting sections 63 and 263 are notched, but either or both could be notched. Preferably, the connecting sections 61 and 261, 63 and 263 are notched at selected locations that correspond to using a plurality of the bridging members 19 and 219 together to span standard spacings between adjacent studs 2 and 202.
Number | Date | Country | |
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Parent | 13281429 | Oct 2011 | US |
Child | 14062712 | US |
Number | Date | Country | |
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Parent | 14062712 | Oct 2013 | US |
Child | 14468269 | US |