Background of the Invention
The present invention relates in general to an installation tool and, more particularly, to a device or tool which can be used to install drywall.
Prior Art
In construction in the United States, it is conventional to apply drywall composed of sheets of gypsum covered with paper a surface sheet to form the interior walls of buildings and homes. These sheets can be various sizes and may be up to 4'.times.12'When drywall is applied to walls and ceilings, it is often necessary for one worker to hold the wallboard in place while another worker nails or screws the drywall to underlying boards or metal supports. In the case where a drywall board is applied in home construction as the ceiling, the wallboard must be accurately positioned and held up in place by one worker while it is secured to the wood rafters or metal supports by another worker. This is particularly true when large drywall section, such as 4'.times.12', weighing a considerable amount are secured to ceilings in this manner.
It is, therefore, an object of the present invention to avoid the necessity of having two workers secure drywall to ceiling areas.
It is also another object of the present invention to provide a tool which will assist workers in more accurately positioning drywall when applied to sidewalls.
Summary of the Invention
A drywall installation tool is provided having first and second sections whose upper surfaces are at an angle of from about 15 to 30 degrees with respect to each other. The first section of the tool has at least two perforations through which a securing means, such as a nail or screw, can be inserted for securing the tool to a sheet of drywall which is already in place. A spacer projects from the upper surface of the first section of the tool to aid in accurately positioning the tool on the drywall surface, i.e. the spacer comes in contact with the edge of the drywall sheet which is already in place. The second section of the tool has at least a portion of its upper surface roughened to provide a frictional surface to prevent drywall from sliding down when it is brought into contact with the upper surface of the second section.
Description of the Drawings
FIG. 1 is a side view of the drywall installation tool of the present invention, illustrating a preferred embodiment in which the perforations are spaced apart.
FIG. 2 is a top view of the drywall installation tool of FIG. 1, illustrating the rounded corners and positioning of the perforations.
Detailed Description of the Invention
The drywall installation tool of the present invention is shown generally at 1 in FIGS. 1 and 2. Tool 1 which is generally rectangular comprises a first planar section and a second section 5. The first section 3 has an upper surface 7 and a lower surface 9. The first section has at least two spaced apertures (holes) 11 and 13 through which a securing means, i.e. nail or screw, can be inserted to secure the tool to a sheet of drywall (not shown) which has already been secured in place.
A spacer means 15 projects upwardly from the upper surface 7 of the first planar section 3. The spacer means 15 preferably projects upwardly from the upper surface 7, a distance of from about 0.0625 to 0.1875 inches, and extends across the entire width of the first section 3. The spacer means 15 is preferably about 0.5 to 1.25 inches from the first side of the first section. The first section 3 has a first edge 17 which is opposite a first side 19 of the first section 3.
Tool 1 is integrally formed from a single sheet of metal or from a single piece of plastic, such as polycarbon. The first side 19 of the first sheet 3 is where the planar surface 7 of the first section 3 ends, i.e. where the upper surface of the tool begins to angle away from the planar surface 7 of the first section 3.
Generally, the first section 3 is adjacent the second section 5 and the second section has an upper surface 21 and a lower surface 23. The upper surface surface 21 of the second section 5 is generally planar and has a friction means 25 formed thereon (FIG. 1).
The friction means can take the form of a roughened surface or a sharp projection. In a preferred embodiment (not shown), the friction means 25 comprises a plurality of teeth projecting at an angle of less than 60 degrees from the upper surface 25, the teeth pointing toward the first side 15 of the first section 3.
The upper surface 25 of the second section 5 is at an angle of 15 to 30 degrees, preferably 20 to 25 degrees, most preferably at 20 degrees with respect to the upper surface 7 of the first section 3.
The first edge 17 of the first section 3 preferably is a smooth curved surface, thereby to avoid damage to a drywall surface when brought into contact therewith. Also, the outer edge 27 of the second section 5 is preferably provided with a smooth curved surface (FIG. 1 ) such as a circular surface.
The ends as well as the corners 29 of tool 1 are curved to avoid damage to drywall when brought into contact therewith. In a preferred embodiment, one of the two spaced holes 11 in first section 3 is about 0.5 to 1.25 inches from the first edge 17 of the first section.