The technical field relates to tools for use in mounting tiles, such as ceramic, stone, or metal tiles, onto a suspended vertical wall surface that has no horizontal bottom support below it, such as a wall surface located above a niche formed in a wall, or above another recessed surface such as a window frame.
There is a continuing need for improvement in implements and methods for quick and efficient installation of tiles in a manner that results in a smooth, even, high-quality tiled surface. Workers installing tiles, and in particular, large or heavy tiles like ceramic or stone tiles, onto a vertical surface located above a niche formed in the wall surface struggle to keep the tiles from slipping out of place due to the force of gravity, because the tiles have no support along their bottom edges. When installing tiles, the adherent material used to secure the rear surface of the tiles to the vertical surface of the wall requires some time to harden and to fix the tiles onto the surface. Before the adherent material hardens, often the adherent material meant to hold the tiles in place will have insufficient holding power. The result is that tiles have a lack of support and will slip downwardly out of place before the adherent material hardens. Thus, a low-quality installation may result, wherein the tiles are not secured in their correct positions. Prior solutions to this problem lack capabilities for quick installation of a support, and for quick removal and placement of the support for re-use. Prior solutions also lack adjustability to a number of different niche configurations and tile positioning requirements.
In embodiments disclosed herein, the invention comprises novel designs for a support tool for use in installing tiles onto a surface. The tool provides a support for the bottom edge of tiles being mounted onto a vertical surface above a niche or other wall recess. The tool has features for quick installation and de-installation, for adjustment of the secured position of the bottom edge of the tiles relative to the position of the upper surface of the niche, for re-use in niches in many sizes and shapes, and for use in conditions where it is undesirable to drill holes in the wall or in the upper surface of the niche.
One embodiment is a tile installation tool that has a support plate configured to be affixed to an upper surface of a niche of a wall, and an adjustable tile support bar engaged with the support plate. The tile support bar is held in a selected position relative to a position of the support plate.
One example of this embodiment has a support rod connected to the support plate, wherein the tile support bar is slidably engaged with the support rod and the support rod supports the tile support bar in the selected position relative to the position of the support plate. This example also has a securing nut, wherein the securing nut is configured to secure the tile support bar in the selected position to provide support to a lower edge of at least one tile. In part of this example, the securing nut engages with exterior threads formed on the support rod to secure the tile support bar in the selected position. In another part, the support plate has a wall-side surface configured to be positioned to be flush with a surface of a wall into which a recess is formed, and the support plate has side wings that extend in a direction opposite to that of a horizontal upper surface of the support plate such that wall-side surfaces of the wings are flush with the surface of the wall.
Yet another part of this example has an extender assembly removably mounted to the tool. The extender assembly has a tube comprising a hole formed in an upper end of the tube and interior threads formed in a side wall of the hole engage with exterior threads formed on the support rod to removably mount the extender assembly to the tool. The extender assembly is adjustable in length. Further, the tube has a slot formed in a side wall of the tube along an axial direction of the tube and can receive insertion of a threaded extension rod through an opening formed in a lower end of the tube. A limiter pin inserted through the slot and into an aperture formed in an upper end of the extension rod holds the extension rod within the tube and slides along the slot with movement of the extension rod. Further, an extension nut has interior threads within a central hole of the extension nut that engage with exterior threads of the extension rod, such that the extension nut, when turned, presses against the lower end of the tube to secure a position of the extension rod upwardly or downwardly with respect to the tube.
Yet another embodiment of this disclosure is a system for installing tiles that includes a tile installation tool that has a support plate, a tile support bar, a support rod connected to the support plate. The tile support bar is slidably engaged with the support rod and the support rod supports the tile support bar in a selected position relative to a position of the support plate. The tile installation tool has a securing nut that secures the tile support bar in the selected position to provide support to a lower edge of at least one tile, and a means for securing the tool in a recess formed in a wall.
In one example of this embodiment, the support plate includes apertures for receiving insertion of screws, and the means for securing comprises screws. In another example, the means for securing comprises an extender assembly having an adjustable length.
Yet another embodiment of this disclosure is a method for installing tiles above a niche formed in a wall. The method includes providing a tile installation tool that has a support plate, a tile support bar, a support rod connected to the support plate that supports the tile support bar in a selected position relative to a position of the support plate, and a securing nut. The securing nut is configured to secure the tile support bar in the selected position to provide support to a lower edge of at least one tile. The tile installation tool also has screws. The method includes inserting the screws through apertures formed in the support plate, screwing the screws into an upper surface of the niche above the support plate to secure the tool to the surface, adjusting the position of the tile support bar to the selected position by turning the securing nut, and positioning the at least one tile so that the lower edge of the at least one tile abuts the tile support bar.
While multiple embodiments are disclosed, still other embodiments of the present invention will become apparent to those skilled in the art from the following detailed description, which shows and describes illustrative embodiments of the invention.
The above-mentioned and other features of this disclosure and the manner of obtaining them will become more apparent and the disclosure itself will be better understood by reference to the following description of embodiments of the present disclosure taken in conjunction with the accompanying drawings, wherein:
While the invention is amenable to various modifications and alternative forms, specific embodiments have been shown by way of example in the drawings and are described in detail below. The intention, however, is not to limit the invention to the particular embodiments described. On the contrary, the invention is intended to cover all modifications, equivalents, and alternatives falling within the scope of the invention as defined by the appended claims.
In the following detailed description, reference is made to the accompanying drawings which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, and it is to be understood that other embodiments may be utilized and that structural changes may be made without departing from the scope of the present invention. Therefore, the following detailed description is not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims and their equivalents.
The support plate 4 may be formed in a “crown” type of shape as depicted in
Any kind of screws that fit the holes in the main support plate 4, sufficient in length, can be used to penetrate the upper surface U of the niche, which may be formed of drillable surfaces such as wood, drywall, or cement boards. Preferably the screws are of a length adequate to reach the studs located above the upper surface U. At least one screw should be placed on each side of the threaded support rod 16. More screws might be necessary depending on the weight of tiles that need to be supported by the tool. The screws preferably may be tightened all the way, to ensure that the tool 100 is installed in a stable fashion and does not move relative to the niche during tile installation. Other known means of temporary installation of the plate 4, such as by using nails instead of screws, may be employed.
In embodiments of the tool 100, the support plate 4 has extensions 6, 6 in the nature of wing-like projections along the plane of the upper surface 8 of the plate 4 resulting in the “crown” shape as shown in the drawing figures. The extensions 6, 6 may be useful to increasing the stability of an installation of the tool 100 by increasing the distance between holes 12, 12 without adding extra weight and material between the holes 12, 12. The tool 100 preferably is installed in a way in which that the support plate 4 will not have any contact with the tiles in need of support.
The support plate 4 has a wall-side surface 10 that may be positioned to be flush with the surface of the wall into which the niche or recess was formed. The support plate 4 may have extended portions in the nature of side wings 14, 14 that extend downwardly, in a direction opposite to that of the horizontal upper surface 8 of the support plate. The wall-side surface 10 of the plate 4 preferably is installed so as to be flush with the wall-side surface of the wings 14, 14 so that the wall-side surface of the wings also is flush with the wall in which the niche is formed.
The wings 14, 14 are seen in the underside views of the tool 100 shown in
The head portion 2 of the tool 100 includes a support rod 16 affixed (permanently or temporarily, preferably permanently) to the support plate 4. The support rod 16 may preferably be affixed on a side of the plate opposite to the horizontal upper surface 8, so that the rod 16 extends downwardly when the upper surface 8 of the plate 4 is installed in abutment with the upper wall (ceiling) surface U of the niche. In an embodiment, the threaded rod 16 has a dimension of approximately 3½ inches long and 0.50 inches wide in diameter, and is affixed in the front center of the support plate 4.
The support rod 16 has exterior threading in the nature of helical threads 30 as shown in
The turning of the securing nut 32 in turn will move a tile supporter 18 upwardly and downwardly along the axial direction of the support rod 16 (in the direction of line A in
As seen by comparing
The desired position for the lower edges of the installed tiles might, for example, be flush, or close to flush, with a horizontal plane of the upper surface U of the niche. In this instance, as seen in
In other installations, the desired position for the lower edge of the installed tiles might be slightly lower than the plane of a horizontal upper surface U of the niche. For example, it might be desirable to have the lower edge of the installed tiles extend below the plane of the upper surface U, so that the lower edge of the tiles may meet with a top surface of a layer of tiles, or other wall coverings, later installed upon the upper surface U. In this case, the installer would turn the nut 32 so that the upper surface 26 of the tile support bar 24 is held at a desired position below the upper surface 8 of the plate 4. An example of adjustment to this position is shown in
In use, after the plate 4 is secured in position in abutment with the upper surface of the niche, and the tile supporter 18 has been adjusted to hold the support bar 24 in its desired position, the installer applies the adherent material to the rear surface of the tiles to be installed in the first horizontal row of tiles above the niche, and positions these tiles so their lower edges are held in the correct position by the tile support bar 24. After the tiles in the first row are in place, the tile support bar 24 may be lowered or raised as needed to reach a desired horizontal level, by turning the nut 32. The tool 100 then is left in position until the adherent material is dry and is securing the tiles in place. After the adherent material is sufficiently dry, the operator may turn the securing nut 32 so as to lower the tile support bar 24 away from the lower edges of the installed tiles. This lowering permits removal of the tool without risking damage to the lower edges of the installed tiles. The operator may remove the screws or nails that are holding the plate 4 in position. This allows the operator to remove the tool 100 for re-use in another application.
The adjustability of the tile supporter 18 afforded by the adjustment of the nut 32 also provides easy and safe removal of the tool 100 after installation of the tiles has been completed and the adherent material has hardened, without damage to the installed tiles. After hardening of the adherent, the nut 32 may be turned to lower the tile support bar 18 so that its upper surface 26 moves downwardly, away from the secured tiles (that is, for example, moving from a position as shown in
The installer has the benefit of choosing whether to secure the tool 100 to the niche using screws, instead of the assembly 50, in the instances where the niche upper surface U is formed of a drillable material such as wood or drywall-type materials. Alternatively, in instances where the upper surface of the niche is not drillable or making holes is not desirable (e.g., upper surface is formed of concrete, or of a water barrier that should not be drilled), the installer may choose to secure or brace the tool 100 in place in the niche using the extension assembly 50. In an example, extra support might be desired, in which case the installer may choose to secure the tool in place both with screws and with the extension assembly.
As seen in
An extension nut 72 having helical interior threading in the nature of interior threads 80 formed in an interior side wall of its central hole 78 is shaped and configured to be movably connected to the extension rod 64. The interior threads (not shown) of the extension nut 72 mate with, and move along, the exterior threads 66 of the extension rod 64 when the nut 72 is turned relative to the extension rod 64. During this turning, the limiter pin 70, which extends through, and thus is held in, the slot 60, prevents the tube 52 from rotating along with the rotation of the extension rod 64. In this manner, the installer may adjust the length of the extension assembly to a desired length, by turning the extension nut 72 and thus moving the extension rod 64 upwardly or downwardly within the hollow tube 52. The nut 72 may be turned, preferably by hand using handles as shown in the configuration in
The nut 32 and the extension nut 72 may be of a standard known design having an inner nut with interior threads, preferably formed of a metal, such as steel or aluminum, and a handle feature allowing an installer to turn the nut by hand. In a known example, such a nut has an outer handle portion formed of a thermoplastic material such as a rigid plastic that is shaped and suited to be gripped and turned by hand so as to have its internal helical screw threads engage with exterior threads of rods such as support rod 16 and extension rod 64. The nut 32 and extension nut 72 may be of similar size, shape, threading, and design. The support rod 16 and the extension rod 64 may have similar diameters, design, and threading, such that manufacture and repair of the tool in its two embodiments 100 and 200 may be accomplished in a simple and efficient manner, because the support nut 32 and the extension nut 72 may be substituted for one another for engagement with either of the support rod 16 and the extension rod 64. Removable limiter pins may optionally be positioned at ends of the support rod and/or the extension rod, as shown in
The lower end 74 of the extension rod 64 may include a cap or cover in the form of a bumper 76 that is configured and formed of a material that will reduce slippage between the lower end 74 of the extension rod 64 and a building surface such as a floor of the niche, or a floor of a room in which the niche is positioned. The bumper may preferably be formed of a thermoplastic material, such as any suitable plastic or rubber materials, such as anti-skid, anti-mar, and/or cushioning thermoplastic materials.
In this manner, the second embodiment tool 200 may be braced in position to support tiles above a niche without screws, if desired, by using the adjustable extension assembly 50. The installer may turn the extension nut 72 to expand the distance between the upper end 54 of the slotted tube 52, which is secured to the support plate 4, and the lower end 74 of the extension rod 64. Thus the upper surface 8 of the support plate 4 may be secured by friction abutment against the upper surface U of the niche by extending the extension assembly 50 to affix the tool 200 in place. A tension is formed between the support plate 4 and the lower end 74 of the extension rod 64 when the lower end 74 of the extension rod 64 presses against a floor of the niche, or the floor of the room in which the niche is formed in a wall. Thus the tool is securely held in position between the upper surface U of the niche and a bottom surface or floor surface, via a wedging force, with friction abutments between the support plate and surface U on the support plate end, and between the lower end of the extension rod and a floor surface or bottom surface of the niche. Similar to the use of the first embodiment tool 100, the securing nut 32 of the second embodiment tool 200 may be turned to adjust the position of the tile supporter 18, and thus in turn the tile support bar 24, upwardly or downwardly as needed, to abut the lower end of the tiles at a desired position. After time for the adherent material securing the tiles to the wall to be hardened sufficiently, the second embodiment tool 200 may be removed. Optionally the securing nut 32 may be turned to lower the tile support bar 24 away from the lower edges of the installed tiles to avoid damage during removal of the tool 200. The tension between the lower end 74 of the extension rod 64 and the support plate 4 may be released by turns of the extension nut 72, and so the tool 200 may be loosened from its installed position and removed.
As may be appreciated from the above descriptions, the tool 100 and the extendible tool 200 are intended to hold the first row of tiles above a niche, upon which the additional tiles positioned above the first row may be installed either before or during drying of the adhesive material positioned between the tiles and the wall. The tools support the tiles against downward slippage and also allow for proper alignment with the rest of the tiles installed, so that all of the tiles are in the same horizontal line.
In embodiments, the tool also may be employed in horizontal applications where it may be desirable to support tiles along a vertical edge of a wall corner or other feature.
Elements of the tool 100 and the tool 200 may preferably be formed of a metal or metal-containing material. One or more suitable aluminum or steel materials may preferably be used to form one or more of the support plate 4, tile supporter 18, tile support bar 24, support rod 16, slotted tube 52, extension rod 16, and limiter pin 70. Aluminum may be preferred, as having sufficient rigidity and strength while also being lightweight and easy for an installer to handle and transport.
Versatility of application is an improved feature of the tool in that the tool in its embodiments exemplified in
A system is provided in the instant disclosure, comprised of the foregoing elements, comprising, or consisting of, or consisting essentially of, a tool 100 or a tool 200 as described above. The system may comprise securing means such as screws.
A method is provided for installing tiles using a tool according to any of the embodiments described herein and depicted in one or more of the drawing figures. The method comprises, or consists of, or consists essentially of, steps of employing a tool as in any of the foregoing embodiments, comprising: providing the tool; installing the tool, via optionally (a) installing the tool 100 using securing means affixed through the screw holes 12, 12 in the plate 4; or (b) installing the tool 200 using pressure and friction abutment between the upper surface 8 of the plate and the lower end 74 of the extension rod 64; or (c) installing the tool 200 using both securing means through the screw holes as in (a) and also using pressure and friction abutment as in (b); adjusting the position of the support bar; positioning the tiles above the niche; optionally re-adjusting the position of the support bar; allowing time for the adherent material to harden sufficiently to support the tiles; and removing the tool. Embodiments of the method are depicted in the flow charts of
One of skill in the art will appreciate from the foregoing that unexpected benefits are derived from application of the tool, system and method to the problem of installing tiles above a niche, without the need for additional components or parts. Changes to the configuration may add costs, weight, and complexity to manufacture, operation, and maintenance of the tool. A key benefit contemplated by the inventor is improvement of tile installation through use of the disclosed tool, system, and method, while excluding any additional components, steps, or change in structural features. In this exclusion, maximum cost containment may be effected. Accordingly, the substantial benefits of simplicity of manufacture, operation, and maintenance may reside in an embodiment of the invention consisting of or consisting essentially of features of the tool, system, or method as disclosed herein. Thus, embodiments of the invention contemplate the exclusion of steps, features, parts, and components beyond those set forth herein. The inventor contemplates, in some embodiments, the exclusion of certain steps, features, parts, and components that are set forth in this disclosure even when such are identified herein as being preferred or preferable.
It is to be understood that the above description is intended to be illustrative, and not restrictive. Many other embodiments will be apparent to those of skill in the art upon reading and understanding the above description. For example, it is contemplated that features described in association with one embodiment are optionally employed in addition or as an alternative to features described in association with another embodiment. The scope of the invention should, therefore, be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.
The present application is a national phase entry of International Application No. PCT/US21/22105 filed on Mar. 12, 2021 and claims the benefit of U.S. Provisional Patent Application No. 62/991,363 filed on Mar. 18, 2020, the contents of which are hereby incorporated by reference in their entirety.
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PCT/US2021/022105 | 3/12/2021 | WO |
Publishing Document | Publishing Date | Country | Kind |
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WO2021/188376 | 9/23/2021 | WO | A |
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