The present invention relates in general to deflection clips used in construction, and in particular to interior construction to secure an interior wall framing stud to the top appropriated ceiling track.
Deflection tracks and clips are two of the many construction elements common to metal stud framing. A deflection track assembly is part of a wall construction assembly and is used to accommodate the expected vertical movement (deflection) of the structure without damage to the wall finish and system assembly.
In a deep leg track system, the vertical studs are temporarily fastened into place by screwing the stud to the deflection clip. These screws must be removed prior to installing the wallboard for deflection to occur without damaging the wall.
Light gauge metal stud framing can be labor-intensive in comparison to the low cost of the materials. It is estimated that approximately 60% of the metal studs used in the United States are for interior non-structural wall partitions.
Deflection clips are used to attach the exterior curtain wall studs to the building structure and provide for vertical building movement independent of the framing. These clips slide in the vertical direction. A clip only supports the stud in the horizontal direction. Unless a stud is designed to take vertical load, it will deflect or buckle under compression and fail. The slide created by deflection clips guards against incidental bearing loads.
Deflection dies have been utilized in interior construction of partitions in commercial and residential spaces. Traditionally, there is a floor track which is an upward-opening channel on the floor and an overhead track which is a downward-opening track on the ceiling. Metal studs are inserted into the track at specified spacings. The studs are then secured to the tracks with various types of attachments generally referred to as deflection clips.
In the prior art, various deflection clips have been suggested. However, these deflection clips require fastening the stud to the ceiling track, then subsequently removing the fastener prior to installing the wallboard. This process is time-consuming and labor-intensive. It can be seen, then, that there is a need for a deflection clip that, when engaged with the stud, does not require temporary attachment of the stud to the ceiling track runner while still allowing the ceiling track and deflection clip to slide on the stud as increased roof loads occur.
To minimize the limitation in the prior art, the present invention discloses a deflection clip for use in the erection of interior partitions. The deflection clip has a base that is substantially flat and substantially rectangular-shaped. The base has an inside surface, an outside surface, a left end portion, and a right end portion. The left and right end portions each have an extension that is substantially perpendicular to the base. Each extension has an inside and outside surface. Each extension is integrally formed with the base. On the outside surface of each extension, a flange extends from the inferior surface externally. Each flange contains at least one substantially triangular shaped barb cut from the flange. Each barb extends outward by leaving the superior portion of the barb connected to the flange.
The deflection clip secures a stud positioned between the open channel tracks which are affixed to the floor and ceiling. The open channel tracks are C-shaped with a base and two legs extending perpendicular to the base. The C shaped open channel allows a stud to be placed therein. The stud rests in the base of the floor track and is short of touching the base of the ceiling track. This gap allows the ceiling to move up and down without transferring loads to the stud. The deflection clip secures the stud from moving along the longitudinal length of the open channel tracks. The deflection clip is fastened into place in the top track using the barbs. The stud in then inserted into the clip without fastening the stud to the clip or top track. The deflection clip and top track can then slide on the stud as required due to changes in vertical loads.
In one embodiment, the deflection clip is made from light gauge steel that is sufficiently resilient allowing the clip to be simply tapped into place. This eliminates the requirement for fasteners to secure the clip in place. Eliminating the use of fasteners helps to eliminate drywall bulge created by screw attachments to the stud. Alternatively, the present invention eliminates the labor required to screw the deflection clips into place, then remove the screws prior to drywall installation. The deflection clip may be used in either the floor or the ceiling track.
The clip 100 comprises a planar base 101 and perpendicular end portions 102, 103 that create a C-channel for engagement of structural members or studs 200. The end portions 102, 103 further have a resiliently-deformable flange 104, 105 that extends upwardly and outwardly from the bottom of the end portions 102, 103. Each flange 104, 105 has at least one barb 106, 107 extending outward from the flange 104, 105. This configuration allows the clip 100 to be fastened to the ceiling track 202 with the barbs 106, 107 thus eliminating the need for temporary fixation by conventional screws and subsequent removal of the screws prior to installing wallboard. Although not explicitly shown, it will be understood that conventional strengthening features such as ribs can be integrated into portions of the clip 100 as needed, especially to strengthen the flanges 104, 105.
In one embodiment, each end portion 102, 103 has an extension tab 108 extending inwardly perpendicular from the interior surface of the end portions 102, 103 to improve the sliding and engagement function of the structural members 200.
Another feature of the clip 100 is the unitary construction. Forming the clip 100 out of single piece of metal increases its strength and decreases production costs.
It is clear that the present invention is well suited to perform better than current deflection clips due to the advantages mentioned herein. While a present embodiment of the invention has been described for the purposes of disclosure, it will be understood that numerous changes may be made in the construction, operation, and arrangement of the various elements without departing from the spirit and scope of the invention as defined in the following claims.
| Number | Name | Date | Kind |
|---|---|---|---|
| 2711876 | Goebel | Jun 1955 | A |
| 3461638 | Balinski | Aug 1969 | A |
| 3589660 | Dunckel | Jun 1971 | A |
| 4056904 | Dawdy | Nov 1977 | A |
| 4194336 | Weinar | Mar 1980 | A |
| 4805364 | Smolik | Feb 1989 | A |
| 4854096 | Smolik | Aug 1989 | A |
| 4908915 | Ruggles et al. | Mar 1990 | A |
| 5060434 | Allison | Oct 1991 | A |
| 5325651 | Meyer et al. | Jul 1994 | A |
| 5394665 | Johnson | Mar 1995 | A |
| 5664392 | Mucha | Sep 1997 | A |
| 5720138 | Johnson | Feb 1998 | A |
| 5720571 | Frobosilo et al. | Feb 1998 | A |
| 5966893 | Quillin | Oct 1999 | A |
| 6213679 | Frobosilo et al. | Apr 2001 | B1 |
| 6792733 | Wheeler et al. | Sep 2004 | B2 |
| Number | Date | Country | |
|---|---|---|---|
| 20120304583 A1 | Dec 2012 | US |