The use of gypsum board for interior walls and ceilings of structures is ubiquitous. Walls and ceilings may be finished in a fraction of the time required for lathe and plaster finishing.
Along with its many advantages, gypsum board has severe limitations with respect to its ability to support pictures, mirrors and the like. Unless a hanger is positioned directly over a stud, into which screws of nails may be driven, special fixtures are required. A common practice is to drill a hole through the board, insert an appropriately sized plastic anchor into the board, and drive a screw into the anchor to which the hanger is attached. Other devices include a self-tapping screw which simultaneously cuts a hole and screws into the board. Yet other hangers comprise a nail driven into the board at an acute angle from which a hook is suspended.
All of the prior art devices have disadvantages. Drilling a hole in the board produces a fine white dust which is difficult to clean up. Moreover, when prior art hangers are removed, a scar is left in the board which must be patched with joint compound or the like, followed by sanding and painting to match the color of the wall. In general, installing or removing prior art hangers is a messy job.
In accordance with the present invention, there is provided a hanger constructed in accordance with the teachings of application Ser. No. 10/538,812. The hanger comprises a steel strip bent into a Vee to provide two legs. The first leg is arcuate and functions as an anchor when properly inserted into gypsum board. The second leg is straight, with a hook or U-bend formed at its terminus for engaging the wire on which the picture or mirror is suspended. An installation tool constructed in accordance with the present invention is provided which enables the arcuate leg of the hanger to be driven into the gypsum board along an arcuate path until the second leg is brought firmly against the surface of the board. The installation tool is then removed, leaving the hook of the hanger ready to receive the suspension wire. If the hanger must be removed or relocated, the hanger is readily removable from the board by rotating it out along the same path as it was inserted, leaving a minimally perceptible scar in the board. Moreover, if the hanger is removed only to reposition it, it may be reinserted as little as ¼-inch away from its previous location, a feature not achievable with prior art hangers.
The structure of the installation tool of the present invention will become readily apparent from the following description and drawing, in which:
As shown in
A slot 21 is provided near the upper end of the outer leaf 15, which is sized to receive the u-bend formed in the distal end of the hanger 23 as best seen in
The method of insertion of the hanger into gypsum board will next be described. The installation tool is placed against the board wall in the position shown in
Once installed, the hanger of the present invention is able to support surprisingly large loads. A hanger ¼-inch wide readily supports a twenty pound load. Using two such hangers, a forty pound mirror, for example, may safely be hung. Moreover, the load-bearing capacity of the hanger is independent of the thickness of the gypsum board; a twenty pound load can be supported on ¼-inch board as readily as on ⅝-inch board.
The drawings and the foregoing description are not intended to represent the only forms of the invention in regard to the details of its construction and manner of operation. Changes in form and in the proportion of parts, as well as the substitution of equivalents, are contemplated as circumstances may suffice to render expedient; and although specific terms have been employed, they are intended in a generic and descriptive sense only and not for the purposes of limitation, the scope of the invention being delineated by the following claims.
The present invention relates generally to hangers for installation in gypsum board (drywall) from which pictures, mirrors and the like are hung. More particularly, it relates to a novel insertion tool for installing a hanger which is the subject matter of co-pending application Ser. No. 10/538,812, which is incorporated herein in its entirety.
Number | Date | Country | |
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Parent | 10538812 | Dec 2005 | US |
Child | 11437470 | May 2006 | US |