Stud attachment clip
A stud attachment clip for attaching a metal stud to a metal track includes a mounting portion configured for mounting on the metal track and an attaching portion connected to the mounting portion and configured to hold the stud in place.
A field of the invention is attachment clips. An additional field of the invention is attachment clips for attaching a stud to a track.
BACKGROUNDMetal framing is steadily increasing in popularity in the construction industry. Metal framing (typically steel) offers advantages compared to wood when used as framing materials related to strength, cost, resistance to shrinkage and warping, resistance to insect damage, resistance to combustion, and others. With reference to
Despite its many advantages, there are opportunities for improving metal framing systems and methods. As an example, the vertical stud 4 is typically attached to the horizontal track 2 using a fastener 6 such as a screw, bolt and nut, rivet, nail, or the like. Typically, the fastener 6 is inserted through a sidewall of the track to join it to a sidewall of the vertical stud. Although such practices and systems are effective, opportunities for improvement exist. For example, inserting the fastener 6 through the layers of the track and the stud can be difficult due to the limited thickness of the layers. Further, this practice often results in a head of the fastener 6 being exposed on the metal track 2 sidewall surface. In many applications, this is the surface to which wallboard or other facing material is attached. The protruding fastener head can complicate such attachment. In some cases, an uneven facing material attachment and/or warping of the facing material can result.
Additionally, in many applications, the distance between the overhead and lower track changes somewhat during construction. The ceiling and/or floor may sag, for example, as construction loads are placed on them. To accommodate such changes, one or the other end of a stud may be initially attached with a temporary fastener. After a construction event has shifted the ceiling and/or floor, the temporary fastener is removed and replaced with a permanent fastener with the stud now in a deflected position as compared to its original position.
SUMMARYThe above-identified deficiencies of the prior art are addressed by the present stud attachment clip for attaching a metal stud to a metal track. The present attachment clip includes a mounting portion configured for to mounting on the metal track and an attaching portion connected to the mounting portion and configured to hold the stud in place. The mounting portion preferably includes a flat mounting plate, and the attaching portion preferably includes a plurality of locking fingers that rise from the mounting plate for engaging the stud.
Referring now to
The base portion 60 of the lower track 54 is suitable for mounting on an underlying substrate, which may be a concrete, metal or wood floor, for instance. Likewise, the flat base portion 60 of the overhead track 56 is suitable for mounting on an overhead substrate, which may be, for example, a concrete, metal or wood ceiling. As shown in
A passage 82 extends through the plate 80. A fastener 84, preferably a nail or pin, is held in the passage 82. The nail 84 includes a head 86 and a cap 88 over a tip, which is sharp and pointed to facilitate insertion into a substrate. A positioning flute 90 is optionally included on the shaft of the nail 84 for positioning the nail in the barrel of a driving tool such as a combustion or pneumatic driver gun (not illustrated). The flute 90 is a collar made of flexible plastic with fins extending outward to engage the driver gun barrel. Other fasteners in addition to the nail 84 may be used, with examples including screws, bolts, adhesives and the like.
A crush dimple or boss 92 surrounds the passage 82. The boss 92 is configured as a circular ridge or dimple that is useful to prevent the nail head 86 from penetrating through the plate 80 when driven with a large force as is common in installation tools of the type discussed above. The crush dimple flattens when the nail head 86 impacts it, thereby absorbing some force from the nail insertion. The crush dimple 92 may also provide some rigidity and resistance to bending of the plate 80.
Use of a fastener such as the nail 84 is believed to provide useful advantages and benefits in some example applications. As an example, the nail 84 can be used to attach the attaching clip 58 to the tracks 54 and 56 (
Further, including the nail 84 held in the passage 82 and together with the positioning flute 90 is useful to accommodate one handed operation. An operator can load the nail 84 in a driving tool barrel where it will be held through operation of the positioning flute 90. One hand is then used to operate the driving tool and position the clip 58 for attachment to the track 54, 56 in a desired position. This is particularly beneficial for overhead attachment.
Referring once again to
The fingers 100 and 102 are spaced apart from one another by some distance in a direction that lies along the axis labeled as Y in the overhead view of
As best shown by the overhead plan view of
Also, variations of the present attachment clips of the invention include a plurality of locking fingers that are not offset from one another in the X direction of
The clip 120 provides advantages of low cost of manufacture and easy, nested stackable shipment and storage. The locking fingers 124 are optionally coplanar and/or joined when the clip 120 is manufactured and shipped. A user could then bend the fingers 124 apart from one another into the V shape to receive the stud 52. The locking fingers 124 can then be bent back towards one another to more firmly hold the stud 52 in place.
Referring once again to
In some example applications, both locking fingers have a height of at least about 0.25″. The height should be sufficiently large to allow some movement of the stud 52 along the height of the locking finger 100, 102 (i.e., in the Z direction of
The present clip 58 as well as many depicted alternatives are useful for reducing or eliminating these duplicative labor and other costs. Some of the present attachment clips are configured to hold the stud 52 in place but to allow some movement in the vertical direction (i.e., the direction normal to the track major axis and along the Z axis of
Different amounts of movement may be allowed in this Z direction depending on the configuration of the locking fingers 100 and 102. They may be configured, for example, to allow for limited movement in the Z direction of no more than about 1/16″, no more than about ⅛″, no more than about ¼″, no more than about ½″, or other limited amounts of movement as may be desirable for a particular application.
Referring once again to the clip 58 shown in
Also, it is believed that installation of the stud 52 using the clip 58 on one cross sectional side of the stud, and attaching the other end of the stud using another clip at the opposite cross sectional side of the stud is useful for resisting rotation of the stud along its major axis. Or, a pair of clips 58 can be used on one or both ends of the stud. This provides multiple attachment points to result in a high resistance to axial rotation of the stud.
The present attachment clips 58, 120, 130 may be made of any suitable material which can be selected based on considerations of strength, ease of use, ease of manufacture, cost, resistance to corrosion, and the like. Some applications may call for more strength than others. For example, some applications may include placing the vertical stud 52 under higher loads in the direction of a track major axis than others. In many applications, the load on the studs in this direction is not high. In such applications relatively thin and lightweight clips may be used. Metals such as a tin, rolled steel, alloys, and polymers are example suitable materials. The clips as shown in
If made of a polymer, a suitably strong and rigid polymer will be useful, with examples being nitrites, styrenes (including polystyrene), and acrylonitrile butadiene styrene (ABS). The example attachment clip 58 is made of thin rolled steel having a thickness of about 0.010″, and may be made in a single piece and then formed through die cutting and bending. Other thicknesses of steel may also be used. This has been found to provide cost and strength advantages that are useful in many applications. Manufacture in a polymer process through the use of molds may also be useful.
The attachment clips 58, 120 and 130 represent only a few example embodiments of the present attachment clip. Many other example configurations are contemplated.
As best illustrated by
Examples include widths of the slot 160 that accommodate one or both of 20 or 25 gage steel (i.e., slot 160 width of from about 0.017″-0.022″), with some additional width provided (e.g., about 0.05″) to allow some tolerance. The width of the slot 160 may be set slightly larger than the wall thickness of the stud 52 for ease of insertion into the attachment clip. Or, in other example clips, the width of the slot 160 may be very close to or even slightly less than the stud wall thickness for a tighter engagement. Configuring the locking fingers 154, 156 and 158 to result in a width of the slot 160 that is smaller than the stud wall thickness may cause the locking fingers 154, 156, 158 to exert a spring gripping force on the stud. While this may be desirable in some applications, in other applications a looser fit may be preferred to facilitate, for example, allowing for vertical movement of the stud 52 (i.e., in the direction of the Y axis of
Referring again to the clip 150 of
Other engagement lips are contemplated and will be apparent to those knowledgeable in the art, including the lips 136 of
The clip 150 of
An adhesive may be applied, for example, to a bottom surface 164 of the mounting plate 152 and/or the track base portion 60 (
The attachment clip 150 may also be used with a nail, screw or other penetrating fastener. The fastener may be driven through the mounting plate 152. A nail gun may be used, for example, to drive a nail through the mounting plate 152 to hold the clip 150 in place on a track and/or an underlying substrate. Or, a passage can be provided to ease attachment.
Although the clip 250 has been illustrated with only one engaging arm 256, other example clips may include a pair of opposing engaging arms—one at each side edge of the mounting plate 252 to engage both track sidewalls 62 and 64. Such a configuration may provide even greater holding power and resistance to rotation. Also, the engaging arm 256 has been illustrated as extending only part of the height of the track sidewall 62. Other example clips may include engaging arms that extend for greater portions of the sidewall 262.
As best illustrated by the cross sectional elevational view of
In some applications this may not be desirable due to potential interference with subsequent installation of wall board or other planar facing materials. Interference may be mitigated to an extent by providing only a single engaging arm 306 and/or only a single locking tang 308. That is, although two engagement arms 306 have been illustrated, other embodiments may include only a single engagement arm 306. This could be useful, for example, to lock the clip 300 in place by engaging the tang 308 of a single engaging arm 306 on the back sidewall 64 of the track 54, 56, leaving the front sidewall 62 free from encumbrances for ease of installation of wall board or other planar facing materials.
The above discussion and figures have illustrated some example embodiments of the present attachment clips. These embodiments are illustrative only, however. Many other embodiments will be possible within the scope of the attached claims. Further, many equivalent and alternative structures will be apparent to those knowledgeable in the art. For example, it will be appreciated that elements of one example clip illustrated herein may find utility when used with a different embodiment.
Claims
1. A stud attachment clip for attaching a metal stud to a metal track, the attachment clip comprising:
- a mounting portion configured for mounting on the metal track; and,
- an attaching portion connected to said mounting portion and configured to hold the stud in place.
2. A stud attachment clip as defined by claim 1 wherein the track has a major axis and wherein the stud is attached to the track in a direction generally normal to the track major axis, wherein said attaching portion rises at an angle of about 90° from said mounting portion, and wherein said attaching portion is configured to restrain the stud from movement along the track major axis and to allow for movement of the stud in the direction normal to the major axis.
3. A stud attachment clip as defined by claim 1 wherein said attaching portion includes a plurality of locking fingers configured to engage the stud and hold it in place.
4. A stud attachment clip as defined by claim 3 wherein the metal track has a major axis, wherein said locking fingers prevent movement of the stud in the direction of said major axis, and wherein said locking fingers are configured to allow movement of the stud in a direction normal to said major axis.
5. A stud attachment clip as defined by claim 3 wherein the metal track has a major axis, and wherein at least a first portion of said plurality of locking fingers are offset from a second portion of said plurality of locking fingers in a direction along said track major axis to define a slot between said first and second portions of locking fingers.
6. A stud attachment clip as defined by claim 5 wherein the width of said slot in the direction of said track is no greater than about 0.05″.
7. A stud attachment clip as defined by claim 3 wherein the track defines a track major axis, and wherein said plurality of fingers comprise at least three fingers, the center of said three fingers offset by some distance in the direction of said track major axis from the first and third of said fingers to create a slot between said center finger and said first and third of said fingers, said slot dimensioned to receive the stud.
8. A stud attachment clip as defined by claim 3 wherein said mounting portion defines a plane and wherein said plurality of locking fingers are at an angle of about 90° from said mounting portion plane and have a height of at least about 0.25″ in a direction normal to said mounting portion plane, and wherein said locking fingers have differing heights.
9. A stud attachment clip as defined by claim 3 wherein each of said plurality of locking fingers has a first end closest to said mounting portion and a distal second end, and wherein at least a portion of said plurality of locking fingers includes a bent receiving lip on said second end to facilitate receiving the stud.
10. A stud attachment clip as defined by claim 3 wherein said plurality of locking fingers have a finger major axis, wherein the metal track has a track major axis in a direction normal to said finger major axis, and wherein said plurality of locking fingers allow some sliding of the stud along said finger major axis while preventing said stud from movement along said track major axis.
11. A stud attachment clip as defined by claim 1 wherein said mounting portion comprises a flat mounting plate that is generally coplanar with a base region of the metal track to which said mounting plate is attached.
12. A stud attachment clip as defined by claim 1 wherein said mounting portion comprises a planar mounting plate having a passage for receiving a fastener.
13. A stud attachment clip as defined by claim 12 wherein the stud attachment clip further comprises said fastener, said fastener configured for use with a combustion driving tool and including a head configured to be received in a barrel of the combustion driving tool, a shaft connected to said head, a positioning flute on said shaft for positioning said pin in the tool barrel, a cap on a shaft end distal from said head, and wherein said mounting plate further comprises a crush dimple surrounding said passage.
14. A stud attachment clip as defined by claim 1 wherein the metal track has a general U shape defined by a lowermost base portion coplanar with an underlying substrate and two opposing sidewalls rising from and substantially normal to said base portion, the lowermost base portion having a width between the two opposing sidewalls; and wherein
- said mounting portion comprises a mounting plate coplanar and substantially coextensive with the track base portion width, said mounting plate having two opposing side edges and at least one attachment arm rising at a normal from at least one of said side edges and configured to engage the track sidewalls.
15. A stud attachment clip as defined by claim 14 wherein the track sidewall each have a top edge, and wherein
- said at least one attachment arm has a lower end attached to said mounting plate side edge and has an overlapping tang at an opposing upper end configured to extend over the track sidewall top edge and to hold the stud attachment clip in place on the track.
16. A stud attachment clip as defined by claim 14 wherein said at least one attachment arm comprises a pair of attachment arms, one each of said attachment arms attached to each of said mounting plate side edges.
17. A stud attachment clip as defined by claim 1 wherein the attachment clip has a general L shape, wherein said mounting portion comprises a flat mounting plate and said attaching portion comprises a planar attaching plate connected to said mounting plate at an angle of about 90°, adhesive on an underside of said attaching plate for attaching said attaching plate to the stud.
18. A stud attachment clip as defined by claim 1 wherein said mounting portion comprises a mounting plate, and further comprising attachment means on an underside of said mounting plate to attach the clip to the metal track.
19. An L-shaped stud attachment clip for attaching a metal stud to a metal track, the track having a major axis, the clip for attaching the stud to the track in a generally normal direction to the major axis, the metal track having a base portion attached to an underlying substrate, the attachment clip comprising:
- a planar mounting plate for mounting on the track and having an edge; and
- a plurality of locking fingers connected to said mounting plate edge at an angle of about 90° from said mounting plate, said fingers having different heights in a direction normal to the track major axis, said plurality of fingers offset from one another in the direction of the track major axis to define a slot for receiving the stud.
20. A stud attachment clip for attaching a metal stud to a metal track as defined by claim 19 wherein the metal track has a general U-shape having a channel defined by two opposing sidewalls rising from and substantially normal to a lowermost planar base portion, the base portion having a width between the two sidewalls, wherein said mounting plate edge is a first edge; and wherein
- said mounting plate has a width coextensive with the track base portion width and opposing second and third edges, an engaging arm rising from at least one of said second and third edges, a locking tang on said engaging arm for engaging one of the track sidewalls; and
- wherein said plurality of fingers comprises at least three fingers, a central of said three fingers offset from a first and third of said fingers in the direction of the track major axis.
Type: Application
Filed: May 11, 2007
Publication Date: Nov 13, 2008
Inventors: Anatoly Gosis (Palatine, IL), Robert G. Kobetsky (Chicago, IL), Yury Shkolnikov (Glenview, IL), George M. Velan (Mount Prospect, IL), Mark Bauer (Mount Prospect, IL), Matthew Davis (Stone Mountain, GA), Anthony Caringella (Norridge, IL)
Application Number: 11/803,084