This application is a national stage entry of PCT/MX2021/050004 filed Jan. 22, 2021, under the International Convention and claiming priority over Mexican Patent Application No. MX/u/2020/000042 filed Jan. 30, 2020.
The present invention is a tool for removing wall plugs from the walls without damaging the surface, and can be used with hand or power tools.
The wall plugs are elements used in the construction sector that serves to ensure and reinforce the fastening of the screws in a place or structural element such as a wall, a panel, a piece of furniture, etc. There are several types of wall plugs each one with a specific use.
The wall plugs are made of different manufacturing materials according to its use; there are usually found in plastic or metal.
For the use of the wall plugs a hole is made with a drill before introducing the wall plugs that will receive the screw. The diameter of the drill bit should be equal to that of the wall plugs. In general, you have to drill only the length of the wall plugs, and to do so it is advisable to paint a mark on the drill bit. To finish, the wall plugs must be pushed to the front surface of the hole.
Immediately, a screw is inserted into the wall plugs that will be used to fix some structural element.
In many cases the screw reaches the end of its useful life and it is necessary to remove it. The wall plug is inserted deposed from this action.
Once the used screw is removed, the wall plugs is fixed inside the wall, the panel, the furniture, or any surface where it has been perforated. Commonly the wall plugs is extracted to fill the gap or detail the surface for esthetic purposes.
In order to extract the wall plugs, different non-specialized tools are used for this purpose such as corkscrews, tweezers, disassemblers, etc.
The use of these tools for the extraction of wall plugs requires applying a lot force to press some part of the wall plugs and pull it off, which damages the surface where has been inserted.
The device and method for removing wall plugs proposed in this invention, allows the extraction of wall plugs from any surface, of simple way, fast, effortlessly and without damaging the perforated surface.
The device for removing wall plugs is a system made up of 2 elements: a screw removing wall plugs and an extractor hub. Both are coupled and inserted into the hole where it is finding the wall plugs. Subsequently, a tool is used to rotate it and start remove the wall plugs.
In order to turn the screw removing wall plugs, a mechanical manual tool can be used, such as tweezers, parakeet, pressure wrench, etc., or a power tool to turn faster, such as an electric screwdriver with a hexagonal tip.
The present invention consists of a system or tool designed for the extraction of wall plugs. This wall plugs extraction system is called the device for removing wall plugs (51).
The Removing wall plugs System (51) includes 2 elements: a screw for removing wall plugs (10) and an extractor bushing (31). These 2 elements are coupled so that the device for removing wall plugs (51) can work properly.
The screw for removing wall plugs (10) is a longitudinal element with double head. It has a screw rope (12), a manual turning Head (13) and an electric turning head (15).
The screw rope (12) is a longitudinal element with external threading that it serves for insertion into the Wall plugs (61). In one of its parts it has a screw tip (11), which is a conical element with external threading that it serves to drill and break some residue inside the Wall plugs (61). In the other end of the screw rope (12) there is an expansion radius (21) with which it joins the manual turning head (13). The expansion radius (21) is a conical element with the largest radius attached to the manual turning head (13). The function of the expansion radius is to open and break the extracted part of the wall plug.
The manual turning head is an element with 6 Sides of manual head (14). At one end it is attached to the expansion radius (21) and at the other end to the electric turning head (15), by means of its head base (17). The base head is ideally hexagonal type, i.e. 6-sided, but can be of 4, 5, 6, or more sides.
The diameter or width of the head base (17) always must be greater than the radius of the extractor bushing (31) for proper operation of the device for removing wall plugs (51).
At the base of the head (17) there is the electric turning head (15), which it is ideally 6-sided, but can be 4, 5, 6 or more sides.
The manual turning head (13) and electric turning head (15) ideally have the same number of sides, but they can also have a different number of sides each one. The manual turning head (13) must always have a radius or width greater than that of the electric turning head (15).
The extractor bushing (31) is a cylindrical element, with an inner hollow called extraction tunnel (33) that serves as a coupling to insert the screw for removing wall plug (10). The extractor bushing has (31) a bushing side (32) which must always have a diameter smaller than that of the manual turning head (13).
The extractor bushing (31) has two identical ends. Both extremes have an angle of centering (34) which is a reduction in diameter outside to the inner diameter of the bushing side (32).
The device for removing wall plugs (51) works as follows:
Number | Date | Country | Kind |
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MX/u/2020/000042 | Jan 2020 | MX | national |
Filing Document | Filing Date | Country | Kind |
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PCT/MX2021/050004 | 1/22/2021 | WO |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO2021/154066 | 8/5/2021 | WO | A |
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4652193 | Hibbs | Mar 1987 | A |
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20130216764 | Pasini | Aug 2013 | A1 |
20230042971 | Zuniga Lara | Feb 2023 | A1 |
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19520308 | Dec 1996 | DE |
202005012855 | Oct 2005 | DE |
202019001511 | May 2019 | DE |
2492764 | Jan 2013 | GB |
Entry |
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Dubelix: “Entfernt den Dübel fix!”, Youtube, Feb. 4, 2020 (Feb. 4, 2020), Retrieved from the Internet <URL: https://www.youtube.com/watch?v=c7wDtYZsAIA. |
Number | Date | Country | |
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20230042971 A1 | Feb 2023 | US |