This application claims the benefit of provisional patent application Ser. No. 62,893,305 filed Aug. 29, 2019
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This invention relates to fabrication and assembly tools, specifically to those used in steel stud framing.
In the field of steel stud framing, multiple structural components are used.
To delineate the location of walls and other features to be framed, location lines are typically applied, or “snapped” via chalkline to floor surfaces. Using lasers or plumblines, the location lines are then extended to the ceiling surfaces in order to correctly position and secure the top track to those surfaces. In commercial or industrial applications, the ceiling surfaces often comprise corrugated “ferrous,” or steel sheets 26. The steel sheets are usually supported by a steel framework comprising steel trusses or I-beams 30, as in
The standard, full length of top track is ten feet and its width varies. With the location of the top track established as described, two-person teams often install the top track. One team member is usually on the ground positioning the laser, cutting track to specific lengths where needed, and helping support one end of the track with a stud of adequate length while the second team member, from an elevated work platform, aligns the track into final position and fastens it to sheets 26. This support scenario regularly proves to be awkward, inefficient, and even an unsafe procedure. In cases of extremely high ceilings requiring both team members to work from an aerial lift, many valuable man-hours are expended in up and down travel for laser repositioning and materials acquisition. In such a scenario, an additional team member may be called upon to assist with the process, but at the expense of increased installation costs.
One recent improvement of my own is shown in
The value of using magnets in this fashion relies entirely upon their ability to create an effective bond. One of the detriments to this method is that not all of the sheet corrugations are always exactly in the same plane, such as in locations where the sheets are supported by varying planes of the steel structural components described earlier and shown in
Another detriment to the use of magnets in this way is that the strength of the magnet is compromised. Because the top track is steel, a portion of the force from the magnet's magnetic field is expended on the top track itself. This reduces the amount of force between the track and the steel sheeting to which the track is applied. Not only is the magnet less efficient, but the magnet's specified pull or weight rating is invalid and not applicable between the top track and steel surfaces to which it contacts.
To help overcome the above-noted shortcomings of using magnets in this fashion, some personnel have suggested increasing the number of magnets, using more powerful magnets, or doing both. Doing any of these, however, fails to definitively address the underlying problem. It also makes magnet removal more difficult and fails to rise to the level of safety and security required.
Until now, there have been no known tools offered which use magnetic force applied directly to overhead steel sheeting by which to temporarily and securely support the top track in reasonable proximity to its final position so that the track may be quickly and securely fastened by one person.
Accordingly, several objects and advantages of the present invention are to provide a steel stud framing positioning and support tool for installation of top track on corrugated steel sheeting or steel structural members
In accordance with the present invention, a positioning and support tool for steel stud top track installations in which top track is to be fastened to the underside of corrugated steel sheeting or other steel components. The tool uses a pair of magnets which connect directly to steel sheeting or other structural components. A track hanger is fastened to the magnets in such a way that the top track rests on the track hanger and is safely held captive by the tool.
In
Cable 43 is then routed into a horizontal cable protector sleeve 44. The uppermost horizontal surface of sleeve 44 provides an upper support surface on which a top track rests. Sleeve 44 and the horizontal portion of cable 43 comprise a horizontal support section 38. The horizontal support section 38 and the vertical support sections 36 together comprise a track hanger.
Cable 43 (
Operation—Preferred Embodiment—
To deploy the tool, the cable length is first adjusted by loosening the cable lock nuts 42′ and moving the upper vertical sections of cable further into or out of adjusters 42 until the upper support surface is located at an adequate distance from magnetic upper bonding surfaces of magnets 40. An adequate distance is attained when the horizontal support section 38 is capable of being positioned beneath the top track's vertical legs during magnetic bonding of magnets to a specific overhead structure. When desired cable length is attained, the cable lock nuts 42′ are tightened. A first magnet 40 is then placed into contact with, or adjacent to corrugated steel sheeting 26 or other structural steel component in the desired location. Top track 20 is then placed into position against sheeting 26 in close proximity to its intended, or installed lateral and longitudinal position. A first vertical support section 36 thus hangs in a downward direction alongside a first vertical leg of top track 20. The horizontal support section 38 is then passed horizontally beneath the vertical legs of top track 20. The remaining, or second vertical support section 36 is then extended upwards alongside the opposite, or second vertical leg of top track 20, and a second magnet 40 is then placed into contact with the underside of corrugated sheeting 26. The top track is thus supported, and the process is repeated until the desired number of tools are in position. Top track 20 may then be fastened to sheeting 26.
Alternative Swage-Style Embodiment; Detailed Description—
Magnets 40 are secured by appropriate means into pots 45. Pot 45 comprises a material that may be swaged. Each upper end of a predetermined length of cable 43 is inserted into a vertical bore of sufficient size located in the underside of each pot. Pots 45 are then swaged onto the cable ends by appropriate means.
Operation; Swage-Style Embodiment—
A first magnet 40 is placed into contact with sheeting 26 or other structural steel component in the desired location. Top track 20 is then placed into position against sheeting 26. A first vertical support section of cable 43 thus hangs in a downward direction alongside a first vertical leg of top track 20. A horizontal support section of cable 43 is then passed horizontally beneath the vertical legs of top track 20. The remaining, or second vertical support section of cable 43 is then extended upwards alongside the opposite, or second vertical leg of top track 20. The remaining, or second magnet 40 is then placed into contact with the underside of corrugated sheeting 26. The top track is thus supported at the desired location, and the process is repeated until the desired number of tools are in position.
Alternative Embodiment with Pre-Formed Magnets and Alternative Cable Length Adjustment Means—Background And Description—
In the preferred embodiment, magnets 40 are located within pots to facilitate the machining of threads for the Strut Lock™ assemblies. As an additional alternative,
Operation; Embodiment with Pre-Formed Magnets and Alternative Cable Adjustment Means—
Barrel connector 47 is released by squeezing the ends of the barrel toward its middle. Cable 43 is then adjusted to a desired length by extending or contracting the cables into or out of barrel 47. When desired length is obtained, barrel 47 is released. One of the magnets 46 is placed into contact with sheeting 26 in the desired location. Top track 20 is then placed into position against sheeting 26. A first vertical support section of cable 43 thus hangs downward from magnet 46 alongside one of the vertical legs of top track 20. A horizontal support section of cable 43 is then passed horizontally beneath the vertical legs of top track 20. The cable then passes upward, placing a second vertical support section alongside the remaining vertical leg. The final magnet 46 is placed into contact with the underside of sheeting 26 alongside top track 20 opposite the first magnet. The process is repeated until the desired number of tools are in position. When top track is fastened, tool is removed.
Alternative Rigid Embodiment; Detailed Description—
Magnets 40 (not shown) are secured into pots 49. Pots 49 are bored and tapped vertically in a fashion similar to the preferred embodiment. The upper ends of vertical support sections, comprising threaded rods 51, are threadedly mated with the tapped bores. A horizontal support section 52, comprising flat bar stock, is bored and tapped with bores being located at a predetermined distance from one another, as shown, to receive the lower ends of rods 51. The predetermined distance between the bores of the horizontal support section is equal to or greater than the predetermined width of the horizontal web of the top track.
Operation; Alternative Rigid Embodiment—
To adjust the vertical elevation of the horizontal support section 52, rods 51 are threaded into or out of section 52 until the desired distance between said magnetic upper surface and said upper support surface-is achieved. Top track 20 is then placed into contact with the underside of sheeting 26. Magnets 40 are placed into contact with sheeting 26 or other structural member at each side of track 20 to thus support top track 20. The process is repeated until the desired number of tools are in position.
Alternative Rigid Embodiment with Two-Piece Horizontal Support Section; Detailed Description—
Operation; Rigid Embodiment with Two-Piece Horizontal Support Section—
Set screw 59 is loosened slightly so that the male portion 52B of the horizontal support section may be slid further into or slid further out of the female portion of the horizontal support section 52A. When vertical support sections are separated to the desired width, set screw 59 is tightened. The threaded rods 51 are then threaded up or down to establish the correct vertical elevation by adjusting the distance from the upper support surface of the horizontal support section to the magnetic upper bonding surface of magnets 40. The vertical adjustment of rods 51 allows compensation for thicknesses of adjacent structural components, compensation for irregularities in the plane of the corrugated sheeting, or for optimum positioning of magnets. With preliminary adjustments complete, the track 20 is then placed into the desired location. The support is then positioned under the track, with magnets 40 placed against the steel sheeting 26 or other steel components. Additional positioning and support tools may be added as desired. When top track is in final position, it is fastened in prescribed fashion, and the tool is removed so that subsequent framing operations may proceed.
Thus the reader will see that the tool of the present invention provides a compact device that is specifically designed for safely supporting steel stud framing top track when fastening the track to steel surfaces and structures, that its use reduces installation time, offers a quantifiable weight rating, and reduces the number of personnel required for installation.
While my above description contains many specificities, these should not be construed as limitations on the scope of the invention, but rather as an exemplification of one preferred embodiment thereof. Many other variations are possible. For example, other types of cable length adjustment means may be used, such as the Kwik Loc™ two-way style cable connector manufactured by RIZE Enterprises®.
Also regarding the cable length adjusters, the drawing figures show two of these embodiments as positioned in the area of the vertical support section. Some types of adjusters may also be effectively positioned in the horizontal support section.
Another possible variation to the embodiments presented is that the adjustment to the vertical elevation provided by the threaded rods of the rigid versions may also be accomplished by other means, such as a tooth and pawl system similar to that used in cable ties. This could be accomplished by replacing the threaded rod with vertical members into which teeth are machined. These vertical members would be mated to releasable pawls fitted into the horizontal support sections so that each pawl engages the teeth of a vertical member as they pass through the horizontal support sections.
Accordingly, the scope of the invention should be determined not by the embodiments illustrated, but by the appended claims and their legal equivalents.
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Number | Date | Country |
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3556956 | Oct 2019 | EP |
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Number | Date | Country | |
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62893305 | Aug 2019 | US |