Connecting accessories for attaching at least one sanding block to an extension handle.

Abstract

The coupling accessory (1) for coupling at least one sanding block (2) to an extension handle which, applicable as a coupling means to secure the clamping of at least one sanding block (2) in the connecting end (30) of the end of the extension handle (3), includes a piece which, in turn, includes the lower assembly area (11) which includes the shape and size suitable for insertion into the gap of the connecting end (30) of the extension handle (3) and the upper support area (10) with a flat and rectangular surface (101) including several perforated protrusions (103) protruding so that they are pinned into the sanding block (2) when placed and pressure is applied on the surface area (101) and with two partitions (102) on two of its opposite sides which protrude as clamping jaws, the space of this surface (101) is sized to accommodate and receive by adjustment to apply pressure, at least one sanding block (2).

Description

[0001]DESCRIPTION OF THE COUPLING ACCESSORY FOR USE OF A SANDING BLOCK WITH AN EXTENSION POLE OBJECT OF THE INVENTION The invention, as expressed in the statement of this specification, refers to a coupling accessory for use of a sanding block with an extension pole, providing advantages and characteristics, which are described in detail below.The object of the present invention lies in a useful accessory that constitutes an element specifically designed to serve as a coupling means that allows the fastening of a sanding block in the connection of the end of an extension pole, specifically a painter's brush extension of those existing in the market, with the purpose of being able to carry out manual sanding jobs using the block on surfaces far from the position of the user such as ceilings or walls, being able to comfortably reach them directly from the ground, that is, without having to climb ladders or scaffolding, as occurs when said pole is used to paint with a brush or roller. FIELD OF APPLICATION OF THE INVENTION The field of application of the present invention falls within the sector of the industry dedicated to the manufacture of work tools, focusing particularly on the field of coupling accessories, and more specifically coupling accessories for sanding jobs.BACKGROUND OF THE INVENTION As is known, after applying fillers to repair cracks, dents, and damage to walls and ceilings or other surfaces made of various substrates such as iron, wood, etc., it is often necessary to sand the surface smooth before painting or applying the finish. To achieve this, among other options, such as the use of sanding machines or sheets of sandpaper, one of the most common options used by professionals in the sector, especially in the area of ​​preparation of interior surfaces such as walls and ceilings, where hand sanding is preferred, are sanding blocks. A sanding block is a hand tool consisting of a parallelepiped, rectangular, or square block, generally made of wood or plastic, which has a surface covered with sandpaper or abrasive cloth.The main advantage of this tool is that it provides a stable and rigid support to better hold the sheet of sandpaper. The objective of this invention is to overcome the disadvantage of always having to hold the sanding block directly in the hand to use it. Therefore, sanding distant surfaces, such as ceilings or high sections of walls, requires climbing ladders or scaffolding, complicating the professional's work and increasing the risk of accidents due to falls.To this end, an accessory has been developed specifically designed to allow the sanding block to be used with a painter's extension pole, which is in turn a commonly used tool in the sector concerned here and which, as is known, consists of a pole, often composed of two or more extendable segments, which at one end has a grip and at the opposite end has a hollow connection head suitable for holding the handle of the roller or brush, normally by means of an adjustment screw. Furthermore, and as a reference to the current state of the art, it should be noted that, at least on the part of the applicant, the existence of any other coupling accessory for a sanding block is unknown, nor any other similar application invention that has technical, structural and constitutive characteristics equal to or similar to those claimed here.EXPLANATION OF THE INVENTION The coupling accessory for use with a sanding block with an extension pole that the invention proposes is configured as an optimal solution to the objectives previously indicated which, in turn, represents an improvement on the current state of the art, the characterizing details that make it possible and that distinguish it being conveniently included in the final claims that accompany this description.Specifically, what the invention proposes, as previously indicated, is a useful accessory that constitutes an element specifically designed to serve as a coupling means to secure a sanding block to the connection head at the end of a painter's extension pole of those existing on the market to attach a roller or a brush, in order to be able to carry out manual sanding work using the sanding block on surfaces that may be far from the user's position, such as ceilings or high parts of walls, allowing them to be easily reached without having to climb ladders or scaffolding.To this end, and more specifically, the coupling accessory of the invention is configured, essentially, from a piece comprising an upper support area, provided with means for holding at least one sanding block so that it can be easily placed and removed from the coupling accessory, preferably by means of a pressure fit, and a lower assembly area of ​​shape and size suitable for its insertion into the hollow connection head that the conventional extension pole of type one has for use as a sanding block with a painter's extension pole.Thus, in a preferred embodiment, the upper support area is defined by a flat, rectangular surface whose smaller sides have respective partitions in the form of gripping jaws, being sized to adjust and allow fixation by pressure according to the shape and size of the sanding block for which it is intended and which can be standardized, and without ruling out the possibility of incorporating up to two sanding blocks arranged coplanarly attached to said gripping jaw. In turn, in a preferred embodiment, the flat surface also has a plurality of perforating studs that are nailed into the sanding block when it is placed on said surface, providing additional support to the gripping jaw partitions. And, for its part, the lower assembly area is defined by a cylindrical section of diameter according to the size of the hole in the connection head of the elongated pole for which it is intended, and which is usually standardized.Furthermore, to facilitate the use of the sanding block with the extension pole, the flat surface that forms the upper support area of ​​the accessory has a certain inclination with respect to the axial axis of the cylindrical section that forms the lower assembly area, which is the same axis as that of the pole, said angle preferably being between 25 and 50°. In turn, in an optional embodiment, the aforementioned inclination of the flat surface can be adjusted, for which, preferably, the support area and the assembly area are two independent pieces linked by an articulated joint.Finally, in other embodiments, the accessory comprises one or more additional elements coupled to the support area, such as: - a stabilizing element consisting of a small wheel held by a flexible element that serves as a support on the work surface, minimizing the effort required for sanding; and / or - a light directed toward the work surface to detect irregularities to be polished; and / or - a scraper to remove protuberances or larger irregularities. DESCRIPTION OF THE DRAWINGS To complement the description being provided and in order to aid in a better understanding of the features of the invention, a drawing is attached to this specification as an integral part thereof, in which the following is represented for illustrative and non-limiting purposes: Figure 1.- Shows a schematic front perspective view of an embodiment of the coupling accessory for use with a sanding block with an extension pole, object of the invention, shown next to an example of the sanding block for which it is intended, showing the parts and elements it comprises; Figure 2.- Shows a schematic side perspective view of the example of the accessory of the invention shown in Figure 1, in this case shown with the sanding block once incorporated therein; Figure 3.- Shows a side elevational view of the accessory of the invention next to the extension pole to which it is coupled, showing, by means of an arrow, the way in which it is inserted into the hollow connection head thereof; Figure 4.- Shows an elevational view of the accessory of the invention once placed on the extension pole, and Figure 5.- Shows an elevation view of the accessory of the invention once placed on the extension pole with some optional elements such as an articulated joint that allows adjusting the angle of the flat surface, a stabilizing element, a light to detect irregularities and a scraper to eliminate protuberances or thicker irregularities. PREFERRED EMBODIMENT OF THE INVENTION In view of the aforementioned figures, and in accordance with the numbering adopted, one can observe in them a non-limiting embodiment of the coupling accessory for use of a sanding block with an extension pole of the invention, which comprises what is described in detail below.Thus, as can be seen in said figures, the accessory (1) of the invention, applicable as a coupling means to secure at least one sanding block (2) to the connection head (30) of the end of an extension pole (3), essentially comprises a part which, in turn, comprises an upper support area (10), provided with means to secure at least one sanding block (2) to it in an easily removable manner, and a lower assembly area (11) of a shape and size suitable for its insertion into the hollow of the connection head (30) of the extension pole (3).Preferably, the upper support area (10) has a flat, rectangular surface (101) with two partitions (102) on two of its opposite sides that emerge in the form of a gripping jaw, the space of said surface (101) being sized to fit and receive, by means of a pressure fit, at least one sanding block (2) for which it is intended and which can be of a standardized shape and size, being able to receive and hold up to two sanding blocks (2). Optionally, the flat, rectangular surface (101) of the upper support area (10) also has a plurality of perforating lugs (103) that emerge from it such that they are nailed into the sanding block (2) when it is placed and fixed under pressure on said surface (101), providing additional support to the partitions (102) of the gripping jaw.For its part, the lower assembly area (11) is defined by a cylindrical section (110) of diameter according to the size of the gap in the connection head (30) of the extension rod (3) for which it is intended, and which can be standardized. In any case, preferably, the flat surface (101) of the upper support area (10) is inclined with respect to the axial axis of the cylindrical section (110) of the lower assembly area (11), the angle (a) of said inclination being preferably between 25 and 50º, with 35º being preferred. Looking at Figure 5, it can be seen how, in one embodiment, the angle (a) of inclination of the flat surface (10) can be regulated. To this end, preferably, the upper support area (10) and the lower assembly area (11) are two separate parts of the piece that are linked by means of an articulated joint (12).Finally, in said figure 5 it can be seen how, optionally, the accessory (1) may also comprise one or more additional elements coupled in the support area (10) such as a stabilizing element (13) that serves as a support on the work surface and / or a light (14) to detect irregularities and / or a scraper (15) to eliminate protuberances or larger irregularities. Preferably, said stabilizing element (13) is formed by a small wheel (130) connected to the support area (10) by means of a flexible member (131). Having sufficiently described the nature of the present invention, as well as the manner of putting it into practice, it is not considered necessary to explain it further so that any expert in the field understands its scope and the advantages derived from it.

Claims

CLAIMS 1.- Coupling accessory for use of a sanding block with an extension stick, applicable as a coupling means to ensure the fastening of at least one sanding block (2) in the connection head (30) of the end of an extension stick (3), comprising a piece that, in turn, comprises ^ an upper support area (10), has a flat and rectangular surface (101) with two partitions (102) on two of its opposite sides that emerge in the form of a gripping jaw, the space of said surface (101) being sized to fit and receive by means of pressure adjustment, at least one sanding block (2), and ^ a lower assembly area (11) of a shape and size suitable for its insertion into the hollow of the connection head (30) of the extension stick (3),characterized in that the flat, rectangular surface (101) of the upper support area (10) has a plurality of perforating studs (103) that emerge therefrom such that they engage the sanding block (2) when it is placed and snapped onto said surface (101).

2. Coupling accessory for use with a sanding block with an extension pole, according to claim 1, characterized in that it further comprises a scraper (15).

3. Coupling accessory for use with a sanding block with an extension pole, according to any of the preceding claims, characterized in that it further comprises a light (14).

4. Coupling accessory for use with a sanding block with an extension pole, according to any of the preceding claims,characterized in that the lower assembly zone (11) is defined by a cylindrical section (110) of diameter according to the size of the gap presented by the connection head (30) of the extension stick (3).

5. - Coupling accessory for use of a sanding block with an extension stick, according to any of the preceding claims, characterized in that the flat surface (101) of the upper support zone (10) is inclined with respect to the axial axis of the cylindrical section (110) of the lower assembly zone (11), with an angle (a) of between 25 and 50º.

6. - Coupling accessory for use of a sanding block with an extension stick, according to any of the preceding claims, characterized in that the angle (a) of inclination of the flat surface (10) can be adjusted., 7.- Coupling accessory for use with a sanding block with an extension pole, according to any of the preceding claims, characterized in that it also comprises a stabilizing element (13) that serves as a support on the work surface. 8.- Coupling accessory for use with a sanding block with an extension pole, according to claim 7, characterized in that the stabilizing element is formed by an additional small wheel (130) connected to the support area (10) by means of a flexible member (131).

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