Tile Leveling System
A tile leveling system for leveling tiles is disclosed. The system has a tile lifter whose transverse member is inserted into the grout gap, and turned to get underneath adjacent tiles. The system has a reusable clamping unit, a U-shaped, possibly flexible, wedge, which is slid through the lifter's vertical shaft to sandwich the tiles between the transverse member and the wedge. The transverse member can be concave up, and the lifter can have two transverse members with spacers on each four-corner junction. The lifter's handle can have a U-shaped hole, which allows a rocker tool to be used to level tiles. Another leveling tool, called a gun tool can be used with any of the lifters. Also proposed are two simpler threaded and zip-tie systems. The leveling devices can be used as needed, thus saving the cost of using them in the entire tiled area.
This application claims the benefit under 35 USC 119(e) of U.S. Provisional Application No. 62/516,843, filed on Jun. 8, 2017 and U.S. Provisional Application No. 62/537,833, filed on Jul. 27, 2017, which are incorporated herein by reference in its entirety.
BACKGROUND OF THE INVENTIONThe process of installing a ceramic tiled floor involves a number of steps. First the subfloor is laden with a setting compound such as Thinset, mortar, mastic or any other adhesive material. Typically, one spreads out the setting compound in a localized area, using a trowel. The ceramic tiles are then laid out, and firmly pressed down into the setting compound using a wooden block. A constant spacing, or grout gap, typically 1/16, 3/32, ⅛, 3/16, ¼, 5/16, ⅜, 7/16, ½ or 1 inch, is maintained between the ceramic tiles. This constant spacing is established by using spacers, which are available in many hardware stores.
The ceramic tiles should also be leveled relative to each other. Lippage, the variation in the height of adjoining tiles, detracts from the aesthetic of the finished floor and can also be a trip hazard. Lippage can be the result of height variations in the subfloor, thickness variations of the setting compound, and variations between ceramic tiles. Ceramic tile leveling systems have been developed to reduce lippage during the floor installation process.
U.S. Pat. No. 8,429,878 B1 to Hoffman et al. describes a ceramic tile leveling system that includes a rectangular upright connecting tab that detachably connects to a subtile base traverse member. The subtile base member extends underneath two adjacent ceramic tiles. The ceramic tiles are lifted and leveled when the connecting tab is pulled through a cap base portion
U.S. Pat. No. 7,992,354 B2 to Doda describes a ceramic tile level device that includes a first member that projects upward from a transverse member, which extends underneath two tiles. The first member has an opening that receives a wedge that applies pressure to level the ceramic tiles.
SUMMARY OF THE INVENTIONA common characteristic of these previous ceramic tile leveling systems is the fact that they must be in place on the setting compound before or as the ceramic tiles are being laid out in the setting compound. Typically, the installer must anticipate that two adjacent ceramic tiles will need to be leveled relative to each other. As the installer sets the first tile down into the setting compound, the transverse member of the tile leveling system must be slid underneath the tile. Then, the adjacent tile must be set down on-top of the other side of the transverse member.
The present invention takes a different approach. The present tile leveling system can be used to level two adjacent tiles after those tiles have already been laid out into the setting compound.
For the purposes of the following discussion, “tile” is any installation material that is laid on a floor in a tiled manner with typically uniform gaps between the separate units of the material. Examples include ceramic tiles, panels, sheets, boards, pieces, paving stones, bricks, natural stone tiles, porcelain tiles, wood tiles, vinyl tiles, metal tiles, glass tiles, polyvinyl chloride (PVC) tiles.
An important characteristic is the fact that the width of the transverse member is less than the width of the gap or grout line between tiles. As a result, the transverse member can be slipped into the gap or grout line and pushed down into the setting compound such that the top edge of the transverse member is below the bottom surface of the two adjacent tiles. Then, the leveling unit can be rotated, such as by 90°. This rotation swings the transverse member so that each side is under one of the two adjacent tiles. Then, a lifting unit can be applied to sandwich the two tiles between the leveling unit and the transverse member, thereby leveling the two adjacent tiles.
Another important advantage of the invention can arise if it is used after the tiles are already laid out to fix leveling issues. In such cases the invention needs to be used only in those areas where simpler means fail to level the tiles. Most tiles laid out can be leveled by applying pressure, e.g., by using the reusable wedge or a similar large flat surface. The full use of the invention will typically only be needed in certain areas. The use options of the invention reduce cost by not having to buy too many tile leveling system units.
In general, according to one aspect, the invention features a tile leveling system. It comprises a tile lifter comprising a transverse member and a vertical shaft, wherein a width of the transverse member is equal to or less than a gap between adjacent tiles and a handle of the tile lifter to rotate the tile lifter.
Preferably, at least a bottom end of the vertical shaft has a width that is equal to or less than the gap. A breakaway region can be provided on the vertical shaft allowing the tile lifter to be snapped apart.
In examples, either end of the transverse member is beveled.
In examples, the transverse member is designed to be concave up (curving up) that has minimum surface area in contact with the setting compound for easily rotating it to get its ends under the tiles.
The transverse member and/or the vertical shaft is sized based on a desired gap between tiles. Typical widths include about 1/16, 3/32, ⅛, 3/16, ¼, 5/16, ⅜, 7/16, ½ or 1 inch.
A clamping unit is provided engaging the tile lifter to raise the transverse member against the tiles. It can be a wedge that is inserted around the vertical shaft to engage a bottom face of the handle.
In general, according to one aspect, the invention features a tile leveling method. This method comprises inserting a transverse member of a tile lifter into a gap between adjacent tiles, rotating the transverse member to extend under the tiles, and lifting the tile lifter to level the tiles with respect to each other.
In one aspect of the invention the handle of the lifter is designed to be gripped by one's thumb and fingers, with fingers inserted into a U-shaped space under the handle.
In one aspect of the leveling system, a rocker tool is inserted into the U-shaped space under the handle to lift the tiles.
In one aspect, a “gun tool” is used to lift up tiles to level them.
In two other examples of the leveling system, a lifter with a threaded shaft and a cap and a lifter with a spacer zip-tie shaft with a zip-tie cap are used to level tiles.
In an example, a flexible wedge is used to level tiles.
In an example, a tile lifter is designed especially for the junction of four corners of four tiles by including two perpendicular transverse members. Each transverse member also includes a spacer for tile spacing purposes.
The above and other features of the invention including various novel details of construction and combinations of parts, and other advantages, will now be more particularly described with reference to the accompanying drawings and pointed out in the claims. It will be understood that the particular method and device embodying the invention are shown by way of illustration and not as a limitation of the invention. The principles and features of this invention may be employed in various and numerous embodiments without departing from the scope of the invention.
In the accompanying drawings, reference characters refer to the same parts throughout the different views. The drawings are not necessarily to scale; emphasis has instead been placed upon illustrating the principles of the invention. Of the drawings:
The invention now will be described more fully hereinafter with reference to the accompanying drawings, in which illustrative embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
In general, the tile leveling system includes a tile lifter 100 and a reusable wedge 200 (
An important characteristic of the tile lifter 100 is the width 116 of the transverse member 114. This width 116 and the width 122 of at least the bottom section of the vertical shaft 112 are sized to be equal to or less than the gap or the width of the grout line that is desired or used between the tiles during installation. As a result, the transverse member 114 of the tile lifter 100 can be inserted into the grout gap and then underneath the tiles, even after those tiles have been laid out. This allows the tile lifter to then be rotated 90° to bring the transverse member 114 underneath the two adjacent tiles such that the transverse member extends in a direction that is orthogonal to the lateral extent of the grout gap. Then, the tile lifter 100 can be raised in order to level the two adjacent tiles. The gap that is used between adjacent tiles when those tiles are laid out by the installer is a matter of aesthetics. Common gaps are 1/16, 3/32, ⅛, 3/16, ¼, 5/16, ⅜, 7/16, ½ or 1 inch depending on the style and the size of the tiles used. As a result, in the preferred embodiment, different sized transverse members are used and available depending on the specific grout gap that is being used. For example in different embodiments, the width 116 of the transverse member 114 is about 1/16, 3/32, ⅛, 3/16, ¼, 5/16, ⅜, 7/16, ½ or 1 inch.
In some cases, the lifter will also be used as a tile spacer. In this scenario, the width 122 of at least the bottom section of the vertical shaft 112 is selected or sized to be equal to the desired gap or width of the grout line. As such, when employed as a tile spacer, tile lifters 100 are sold with different widths 122 of the vertical shaft such as the widths 122 being: 1/16, 3/32, ⅛, 3/16, ¼, 5/16, ⅜, 7/16, ½ and 1 inch. As a result, the tile lifters 100 are sold in a package containing 20 or 100 tile lifters having the same width 122.
In addition, the transverse member 114 further preferably comprises beveled ends 114A, 114B. These beveled ends allow the transverse member to more easily slide underneath the bottom surfaces of tiles.
Typically, the tile lifter 100 is constructed as a unitary piece of plastic. It can be formed by 3-D printing or by a molding process, such as injection molding. Preferably, the type of plastic used should have a relatively high brittleness. This allows the vertical shaft 112 to be snapped at a neck down region or breakaway region 118 near the transverse member 114.
Reference will now be made to
In more detail, in the first step 310, the setting compound, such as thinset or mastic 7 is applied to a substrate, e.g., subfloor 9. Then, the tiles can be laid out in their desired pattern. The tile lifters 100 or other spacers can be used to ensure uniform spacing between the tiles.
Also shown is the gap or grout line 56. This gap 56 is characterized by a gap width 58. Generally, spacers, not shown, are used to ensure that this grout gap 56 has a constant width and thus the tiles 5, 6 have a constant spacing with respect to each other. Alternatively, the tile lifters 100 are employed as spacers.
Referring back to
In this orientation, the tile lifter 100 is inserted into the gap 56 (see arrow 180,
The tile lifter 100 must be inserted into the grout gap 56 to a depth such that the top face 120 of the transverse member 114 is lower than the bottom faces 5A, 6A of the adjacent tiles 5, 6.
With reference back to
In this orientation, the transverse member 114 of the tile lifter 100 extends orthogonally to the grout gap 56. Each end of the transverse member 114 is under one of the two adjacent tiles 5, 6.
In step 316 of
This is shown in
Then, as described in step 320 of
With reference back to step 320 of
Having described the primary embodiments of the tile leveling system and its components, we now turn to several alternate embodiments of tile leveling systems and components.
As a tile leveling system, the threaded spacer 500A and cap 500B can be used in two ways. First is to use the transverse member 514 as a uniform spacer, and then to screw in the cap 500B all the way down to the level of the tiles and apply pressure on the tiles by aligning the ends of the cap 523A and 523B to be perpendicular to grout gap 56 of
The second way to use the threaded spacer and cap system to level tiles is to use the threaded spacer 500A as a tile lifter (much like 100) by turning the traverse member 514 to get underneath adjacent tiles and then use the screw-in cap 500B to apply pressure on the tiles so that transverse member 514 lifts up the tiles and levels them with respect to each other. The spacer shaft 512 can be snapped off at 518, leaving behind the transverse member 514 in the grout gap after the tiles are leveled in a manner comparable to tile lifter 100 being snapped off at the breakaway region 118. The transverse member 514 is later covered with grout and hidden from sight.
As a tile leveling system, the zip-tie system of
The second way to use the zip-tie system to level tiles is to use the zip-tie spacer 600A as a tile lifter like 100 by turning the traverse member 614 to get underneath adjacent tiles and then to use the zip-tie cap 600B to apply pressure and lift the tiles to level them with respect to each other. The shaft 612 can be snapped off at 618, leaving behind the transverse member 614 in the grout gap, after the tiles are leveled in a manner comparable to tile lifter 100 being snapped off at the breakaway region 118. The transverse member 614 is later covered with grout and hidden from sight.
The procedure shown in
A gun tool 1000 is shown in
The gun tool 1000 is put together by inserting handle 1210 of the trigger arm 1200, in the direction shown by the arrows in
The gun tool levels tiles as shown in
While this invention has been particularly shown and described with references to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention encompassed by the appended claims.
Claims
1. A tile leveling system, comprising:
- a tile lifter comprising a transverse member and a vertical shaft, wherein a width of the transverse member is equal to or less than a gap between adjacent tiles; and
- a handle of the tile lifter to rotate the tile lifter.
2. A tile lifting system of claim 1, wherein at least a bottom end of the vertical shaft has a width that is equal to or less than the gap.
3. A tile lifting system of claim 1, further comprising a breakaway region on the vertical shaft allowing the tile lifter to be snapped apart.
4. A tile lifting system of claim 1, wherein either end of the transverse member is beveled.
5. A tile lifting system of claim 1, wherein the width of the transverse member is about 1/16, 3/32, ⅛, 3/16, ¼, 5/16, ⅜, 7/16, ½ or 1 inch.
6. A tile lifting system of claim 1, further comprising a clamping unit for engaging the tile lifter to raise the transverse member against the tiles.
7. A tile lifting system of claim 6, wherein the clamping element is a wedge that is inserted around the vertical shaft to engage a bottom face of the handle.
8. A tile leveling method, comprising:
- inserting a transverse member of a tile lifter into a gap between adjacent tiles;
- rotating the transverse member to extend under the tiles; and
- lifting the tile lifter to level the tiles with respect to each other.
9. A tool for engaging the tile leveler at a handle using a gun configuration or rocker configuration.
Type: Application
Filed: Jun 8, 2018
Publication Date: Dec 13, 2018
Inventor: Scott Frisco (Haverhill, MA)
Application Number: 16/003,561