This application claims benefit of priority from Australian Provisional Application No. 2012904081 filed Sep. 19, 2012, which is hereby incorporated by reference for all purposes.
In the floor covering trade, flooring installers often have a need to create transitions between different types of floor coverings. For example, in one area of a given room, an area of vinyl composition tile (“VCT tile”) that is to be installed might transition to another area in which carpet is to be installed. In such case, the two materials are installed up to a transition material, and the transition material covers a gap that might otherwise exist between the materials. The transition protects the edges of the floor covering materials and prevents debris build-up between them.
One type of transition material is T-molding, sometimes referred to as “capping” in areas of the world such as Australia. In floor covering applications, T-molding is a flexible strip transition material typically made from extruded rubber or vinyl. T-molding is so-called because it has a T-shaped cross-section. The top of the “T” faces upward from the floor, and an insert of the T-molding, corresponding to the stem of the “T”, is downward upon installation. The T-molding is installed in conjunction with track material usually made from extruded aluminum. The track is fastened to a subfloor, for example by gluing or nailing. The track includes a channel, into which the insert of the T-molding is forced. A commonly used technique for installing T-molding is to hammer or mallet on the top surface of the T-molding while manually aligning the insert of the T-molding to the channel. Various types of hammers or mallets can be used.
A rubber mallet is used when malleting the T-molding to protect the top surface of the T-molding from being scratched or scuffed, as well as to protect the adjacent floor covering materials. T-molding is soft and easily scratched or scuffed. Any tile or sheet vinyl that is installed at the transition is also easily scratched, scuffed, or chipped. Any such damage to these materials can result in an unacceptable installation.
The process of snapping the T-molding into the track using a rubber mallet can be time-consuming and laborious, particularly on long lengths that are frequently encountered in commercial installations. Only about 4 inches of the T-molding can be malleted at a time, and each section requires several blows. The malleting must also be done from an uncomfortable kneeling position.
Tools from other trades that are used to quickly install T-molding, such as rapid fire pneumatic impact hammers, or roller-fed process machinery, are not practical for use on a floor covering jobsite. Flooring installers often do not own an air compressor required for pneumatic equipment. The available process machinery is designed for factory installation of T-molding onto the edges of tables, window frames, or automotive assemblies. The guidance mechanisms on such process machinery may not be adaptable to the installation of flooring T-molding and track.
Furthermore, T-molding for flooring applications is produced in various profiles for transitions between many different types of flooring materials. For example, the top surface of the T-molding can be provided in varying widths. The insert itself can be provided in different heights to accommodate thinner or thicker floor coverings. The insert may also be located off-center in relation to the overall width of the top surface of the T-molding. Furthermore, one side of the top surface can extend further downward than the other.
Previously used tools for installing T-molding may not be adaptable to all these various profiles of T-molding for flooring applications, particularly those T-moldings with an off-center insert or a top surface with one side extending downward further than the other. Previously used tools for installing T-molding have also not included a means to prevent the tool from contacting floor coverings adjacent to the transition to prevent the floor coverings from being scratched or scuffed. What is needed is a simple and inexpensive hand tool that can rapidly insert the various kinds of T-molding for floor covering applications into the track material, without scratching or scuffing the T-molding, and without contacting the adjacent floor coverings. Therefore, there is a need in the art for a solution which overcomes the drawbacks described above.
A roller tool for installing T-molding is provided in some embodiments. The roller tool includes a body, one or more T-molding guide surfaces that guide the T-molding into the front of the body, a guidance member, and a pressure roller. The T-molding has a top surface, a bottom surface, and an insert extending from the bottom surface. The T-molding is inserted into the channel of the track material. The T-molding is guided into the body by the one or more T-molding guide surfaces contacting the insert of the T-molding. The guidance member is inserted into the channel of the track. The relative positioning of the one or more T-molding guide surfaces to the guidance member locates the T-molding over the channel. The pressure roller is rotatably attached to the body rearward of the front of the body. The pressure roller is configured to press on the top of the T-molding so that, with the front of the body moving in a forward direction, the insert of the T-molding is pressed into the channel by the pressure roller.
Other aspects and advantages of the embodiments will become apparent from the following detailed description taken in conjunction with the accompanying drawings which illustrate, by way of example, the principles of the described embodiments.
The described embodiments and the advantages thereof may best be understood by reference to the following description taken in conjunction with the accompanying drawings. These drawings in no way limit any changes in form and detail that may be made to the described embodiments by one skilled in the art without departing from the spirit and scope of the described embodiments.
A roller tool, as disclosed herein, includes embodiments of a flooring T-molding roller tool as shown in
Detailed illustrative embodiments are disclosed herein. However, specific functional details disclosed herein are merely representative for purposes of describing embodiments. Embodiments may, however, be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
It should be understood that although the terms first, second, etc. may be used herein to describe various steps or calculations, these steps or calculations should not be limited by these terms. These terms are only used to distinguish one step or calculation from another. For example, a first calculation could be termed a second calculation, and, similarly, a second step could be termed a first step, without departing from the scope of this disclosure. As used herein, the term “and/or” and the “I” symbol includes any and all combinations of one or more of the associated listed items.
As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises”, “comprising”, “includes”, and/or “including”, when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Therefore, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.
It should also be noted that in some alternative implementations, the functions/acts noted may occur out of the order noted in the figures. For example, two figures shown in succession may in fact be executed substantially concurrently or may sometimes be executed in the reverse order, depending upon the functionality/acts involved.
An example of T-molding and the track used to fasten the T-molding to a subfloor, is shown in
To install this transition, track 20 is fastened to a subfloor as by gluing or nailing. The track 20 has a channel 21 with teeth 23 and a flat 24. The insert 14 of T-molding 10 is “snapped” or pressed into channel 21 of track 20 by applying an embodiment of the disclosed roller tool to the top surface 12 of T-molding 10. Teeth 23 of track 20 hold barbs 16 of T-molding 10, preventing T-molding 10 from being easily removed.
A finished T-molding transition is shown in
As shown in
As shown in
Guide wheel centerline 1125 is a horizontal line on the same vertical plane as guide edge centerline 1415. The way this is achieved as follows: The guide edge centerline 1415 is a horizontal line passing midway between left insert guide edge 1425 and right insert guide edge 1426. Guide wheel slot 1410 of guide plate 1400 is centered horizontally on the same vertical plane as guide edge centerline 1415. As a result, when guidance edge 1105 of guide wheel 1100 is inserted into guide wheel slot 1410 of guide plate 1400, guide wheel centerline 1125 is also centered horizontally on the same vertical plane as guide edge centerline 1415. Therefore, when guidance edge 1105 of guide wheel 1100 is inserted and centers within the channel of a track, guide wheel slot 1410 ensures that the centerline of the track channel, the guide wheel centerline 1125, and the guide edge centerline 1415 will all be centered horizontally on the same vertical plane. As used herein, guide wheel 1100 is an example of a guidance member that is insertable into the channel of the track to guide the roller tool along the channel of the track as it is moved forward along the track. A person skilled in the art might envision other similar means of guiding the roller tool, including a simple fm or extension of the body 1300 or guide plate 1400 that is insertable into the track channel to guide the roller tool. Any such is included in the definition of a guidance member.
Left insert guide edge 1425 and right insert guide edge 1426 are both equally spaced from guide edge centerline 1415. The total space between left insert guide edge 1425 and right insert guide edge 1426 accepts the width dimension of the insert of the T-molding. The height of left insert guide edge 1425 and right insert guide edge 1426 accommodates the height dimension of the insert 14 of the T-molding 10. Left insert guide edge 1425 and right insert guide edge 1426 guide the insert 14 of T-molding 10 over guide wheel centerline 1125, as well as over the channel of the track. From this position, the T-molding 10 will easily pass through body 1300 to pressure roller 1200 where it is pressed into the track channel. As used herein, left insert guide edge 1425 and right insert guide edge are T-molding guide surfaces which guide the T-molding 10 by contacting the insert 14 (shown in
As shown in
As shown in
To install pressure roller 1200, the pressure roller 1200 is inserted into body 1300 and aligned with pressure roller bearing holes 1320. Pressure roller axle 1700 is inserted through a pressure roller bearing hole 1320, through pressure roller 1200, and through another pressure roller bearing hole 1320. Pressure roller axle 1700 is fastened by e-clips 1800 and caps 1805.
In one embodiment, the pressure roller 1200 is essentially cylindrical or has a center section that is cylindrical, i.e., a cylinder of constant diameter. In a further embodiment, the pressure roller 1200 is convex or has a center section that is convex, which concentrates pressure on the portion of the top surface 12 (
As shown in
The vertical offset between the axis of guide wheel axle 1500 and the axis of pressure roller axle 1700 positions all or a majority of the top surface 1325 of body 1300 roughly parallel with a subfloor surface 50, or parallel to the channel 21 of the track 20. This creates an ergonomic location at top surface 1325 for hand pressure.
The horizontal offset between the axis of guide wheel axle 1500 and the axis of pressure roller axle 1700 permits a gradual transition of T-molding 10 from a starting height at the left insert guide 1405 to the bottom of pressure roller 1200 where it is pressed into the track. Body 1300 is hollow internally and with no features having edges that could scratch T-molding 10 as it passes through to pressure roller 1200.
Returning to
Because the T-molding may be produced in varying widths of top surfaces, some having one side of the top surface extending downward further than the other, some having inserts of differing heights, or some even having inserts that are off-center, it is preferred to guide the T-molding through the tool by using the insert of the T-molding. Additionally it is preferred to guide the T-molding by contacting the insert only so that there is no risk of scratching or scuffing the top surface 12 (
Returning to
100441 As shown in
A method for installing T-molding is shown in
In an action 810, T-molding is received into a roller tool. For example, the T-molding can be received into the body of the roller tool. In one embodiment, the T-molding passes into the body forward of the pressure roller of the roller tool.
In an action 812, a guidance member is inserted into a channel. For example, a guide wheel could be used as a guidance member, with the guide wheel inserted into the channel of a track into which the T-molding is to be installed. In one embodiment, the guide wheel is dimensioned so as to fit in the channel of the track and align the body and the T-molding guide surfaces of the roller tool, while further aligning the pressure roller to the channel, centering the pressure roller over the channel.
In an action 814, the T-molding is aligned to the guidance member of the roller tool. For example, the T-molding can be aligned to the guidance member of the roller tool via application of one or more T-molding guide surfaces, as discussed above.
In an action 816, the pressure roller is pressed onto the top of the T-molding. In an action 818, the roller tool is moved forward, i.e., the body of the roller tool is moved in a forward direction. Pressing the pressure roller onto the top surface of the T-molding and moving the roller tool forward results in the insert of the T-molding being inserted into the channel and the insert seating to the channel.
In one embodiment of the method, the insert of the T-molding passes between the left insert guide and the right insert guide. Surfaces of the left insert guide and the right insert guide are included in the guide surfaces. The left insert guide and the right insert guide are attached to the body forward of the pressure roller, in one embodiment of the roller tool.
In one embodiment of the method, the T-molding passes into the body of the roller tool at a front of the body. The guide surfaces include a third surface that presses on the top surface of the T-molding so that the insert of the T-molding passes between a first surface and a second surface. The first surface and the second surface are included in the guide surfaces.
In one embodiment of the method, the T-molding enters the body forward of the pressure roller. The T-molding enters the body of the roller tool rearward of the guide surface or surfaces. The T-molding exits the body and is pressed by the pressure roller as the body moves in a forward direction.
It should be appreciated that embodiments of the roller tool can install types of T-molding in applications besides flooring. For example, embodiments of as the roller tool could install T-molding on edges of furniture such as desks, or on edges of wall partitions and in other locations.
The foregoing description, for the purpose of explanation, has been described with reference to specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in view of the above teachings. The embodiments were chosen and described in order to best explain the principles of the embodiments and its practical applications, to thereby enable others skilled in the art to best utilize the embodiments and various modifications as may be suited to the particular use contemplated. Accordingly, the present embodiments are to be considered as illustrative and not restrictive, and the invention is not to be limited to the details given herein, but may be modified within the scope and equivalents of the appended claims.
As previously explained, T-molding is sometimes referred to as “capping” in some areas of the world, such as Australia. As used herein, the terms capping roller, T-molding roller, and roller tool (as shown in
Number | Date | Country | Kind |
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2012904081 | Sep 2012 | AU | national |