WIRE REPAIRER AND TENSIONER.

Abstract

Wire repair and tensioner characterized in that: - The locking flaps (3), rigidly attached via the lateral extensions (2) to the central body (1), are configured, taking as the reference origin the geometric center of the opening (1.3) and the corresponding elevation plane as the principal plane, forming angles of opposite signs and central symmetry. - The central body (1) has several openings, two closed-section openings, two axes of symmetry and rhomboidal principal shape (1.1), one open-section opening, vertical symmetry and V-shaped principal shape (1.2), and one closed opening (1.3) with its geometric center on the vertical axis of rotation. - The lateral extensions (2), with rotational symmetry of order 2, are configured at the ends of the central body (1) generating a winding space (2.1) with each of the locking flaps (3), in addition, their configuration, with inclinations of opposite sign, generates a main shape of the central body (1) essentially inverted truncated cone and determines lateral folds (2.2) adjacent to said central body (1) and angularly arranged to it that increase in length depending on their proximity to the winding space (2.1).

Description

WIRE REPAIR AND TENSIONER The present invention relates to a resistant element intended for joining and / or tensioning wires. The use of wires of different sections requires a reliable solution that allows them to be joined and tensioned, or only tensioned, those that have lost their useful working capacity. Various sectors such as enclosures and fencing, management and guidance of agricultural plantations, security systems for power lines and telecommunications infrastructure, or others, use this type of device as fundamental component parts of the installation. The present invention provides a unique solution to this need by means of a single piece that allows two separate sections of wire to be joined and the resulting section to be tensioned, or simply to tension a section that, although continuous, has lost its tensile capacity. The invention limits the minimum bending radius of the wire, thus reducing the risk of exceeding its plastic limit and the consequent breakage. Its design allows for maximum simplicity in its manufacture and use, so that it can be installed with the help of an object of essentially elongated geometry that can be fitted into the corresponding opening intended for this purpose. The different parts of the invention are defined to ensure high reliability in use and, in addition, to allow disassembly or detensioning in a simple way while maintaining the functional integrity of both the invention and the section or sections of wires. STATE OF THE ART There are various solutions for the repair and / or tensioning of filamentary elements; some are used at the ends of a wiring system, while others can be incorporated in intermediate areas by using them directly on the separated sections of a wire. Patent ES2284365A1 proposes a widely used solution in the agricultural sector: the use of a component consisting of a body and several inserts located at its ends. These inserts typically include a toothed roller, a spring, and a cap. By inserting the wire ends into corresponding holes in the end caps, the spring and toothed roller act upon the wire, creating a unique anti-return effect specific to this type of invention. Inserting the wire ends into both sides of the fastening element generates a torque of equal magnitude and opposite direction, thus ensuring the system remains stable. Several similar solutions are reflected in inventions GB2378213A and JPH09151996A where, similarly, a device formed by a body housing springs and locking elements manages to solve the joining of two wire ends to generate the desired continuity. Other more specific inventions achieve the tensioning of wires by means of devices incorporated in fence supports, for example, the one set out in invention ES2161591A1, where a box system and tie shaft with freedom of rotation in one direction enables the winding and the consequent tensioning of the wire. In a trellis planting system and for its incorporation at the ends of each of the rows, a spring system is developed which, by repositioning itself within the body that contains it, achieves the desired wire tension; this is invention ES2313103T3. Regardless of the inventions mentioned above, and after an extensive search on global e-commerce portals, solutions were found that attempt to address the joining of wires in various fields, primarily in the agricultural and forestry sectors. One invention marketed by several companies consists of a body, threaded at both ends, onto which several hooks, also threaded, are installed. The wire is attached to one of the hooks, and the other hook can be attached to an end support or to another wire end, in case two separate wire sections need to be connected continuously. The relative rotation between the body and the hooks causes a change in the distance between the hooks and the consequent increase or decrease in tension on the wire. These inventions are commonly referred to as hook turnbuckles. Other inventions achieve the joining of wire ends by means of pressure exerted between a main body, into which the wire ends to be joined are inserted, and one or more threaded elements directly screwed onto said main body. The direct action of these threaded elements on the wire, whose position is limited within the main body where it is housed, allows for the desired firm connection. These are called locking clamp connections. These inventions are not useful for generating wire tension. DESCRIPTION OF THE INVENTION Considering the background described above, the applicant thought of making a simple manufacturing element, essentially through sheet metal cutting and deformation processes, that can be used for joining wire ends and their subsequent tensioning or for tensioning a wire without tensile capacity. The design envisions a very simple and safe installation system that allows the use of multiple tools, with an essentially elongated geometry, for the installation of this new invention. The invention also allows the detensioning and disassembly of the invention without the need to cut or damage the previously fixed and / or tensioned wire. The invention is manufactured as a single piece consisting of several parts. A first part, or central body, has the necessary openings to accommodate the ends of the wires to be joined or the wire to be tensioned, as well as an opening of sufficient size to attach the installation tool. A second part, or side extensions, connects the central body to the locking flaps. The third part, or locking flaps, consists of two flaps arranged at the ends of the invention and shaped with an inclined plane geometry such that, due to the retention generated by the wire itself, the device can be rotated in one direction but not the other. The piece, formed using sheet metal, has a shape, in its central part or body, essentially truncated conical; this geometry allows the wire to be wound around said body and favors an arrangement where the lateral extensions, which join the central body with the locking flaps, retain the wire in the space determined for this purpose. The side extensions connect the central body to the locking flaps and, through a double fold, ensure that the latter are sufficiently separated from the central body, thus creating the necessary space to accommodate the coiled wire. The folding of the side extensions also produces a wall of variable geometry, normal to the central body, which ensures a greater contact surface with the coiled wire and therefore a greater radius of curvature, thus preventing the plastic limit of the material from being exceeded. The two locking flaps, one on each side and in the shape of an inverted V, fold at an obtuse angle in the area closest to the vertex. Furthermore, the folding of both flaps will be in the same direction so that the wire is not blocked if the device rotates and the wire winds in the same direction as folding, while the device rotates in the opposite direction, limited by the action of these flaps and the configuration described above. BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described in detail by means of a preferred embodiment with the aid of the following drawings: - Figure 1 is a perspective view of a wire repairer and tensioner. - Figure 2 is an elevation view of a wire repairer and tensioner. DETAILED EXPOSURE OF MODES OF REALIZATION With reference to the accompanying drawings, Figures 1 and 2 show an example of a preferred embodiment where the component parts of the wire repairer and tensioner can be observed. The first part, or central body (1), has several openings of varying geometry so that wires of different diameters and cross-sections can be attached. The main rhomboidal openings (1.1) are used to create a single continuous line once the free ends of several wires are inserted. The elongated, V-shaped opening (1.2) is used to attach a slack wire. These openings can be reshaped to accommodate different wire diameters and cross-sections. The central body (1) has an opening (1.3) where the installation tool can be attached. In these figures, a circular section opening can be seen, although other types of openings with diverse geometries could be made to attach tools with different modes and systems of clamping and force transmission. A second part, the side extensions (2), connect the central body (1) to the locking flaps (3). The configuration of these side extensions (2) creates, through a double fold, the necessary winding space (2.1) between the central body (1) and the locking flaps (3) for winding the wire. The folding, as described above, also creates, at the ends of the central body (1), two side walls (2.2) of variable geometry. These side walls (2.2) prevent the plastic limit of the wire(s) being repaired and / or tensioned from being reached by increasing the minimum winding radius. Furthermore, their variable, inclined geometry facilitates winding the wire in the desired area. The geometry and folding of these side walls (2.2) can be varied to adapt to different wire characteristics and / or desired tying methods. The third part, or locking flaps (3), consists of two flaps located at the ends of the piece and shaped with an inclined plane geometry. This allows the device to rotate in one direction, but not the other, due to the action of the wire. Folding both locking flaps (3) in the same direction prevents the wire from locking if the device rotates and the wire winds in the same direction. Rotation in the opposite direction is limited by the action of these flaps (3) and the configuration described above.

Claims

1. Wire repair and tensioning device characterized in that: - The locking flaps (3), rigidly attached via the lateral extensions (2) to the central body (1), are configured, taking as the reference origin the geometric center of the opening (1.3) and the corresponding elevation plane as the principal plane, forming angles of opposite signs and central symmetry. - The central body (1) has several openings: two closed-section openings with two axes of symmetry and a rhomboidal principal shape (1.1), one open-section opening with vertical symmetry and a V-shaped principal shape (1.2), and one closed opening (1.3) with its geometric center on the vertical axis of rotation. - The lateral extensions (2), with rotational symmetry of order 2, are configured at the ends of the central body (1), generating a winding space (2).1) with each of the locking flaps (3), in addition, their configuration, with opposite inclinations, generates a main shape of the central body (1) essentially inverted truncated cone and determines lateral folds (2.2) adjacent to said central body (1) and angularly arranged to it that increase in length depending on their proximity to the winding space (2.1).