Spanish-type wrench with anti-slip locking mechanism

Abstract

The invention relates to a Spanish-type wrench with anti-slip locking means, consisting of a metal bar that at at least one end comprises an open U-shaped mouth defining two parallel and opposing sections with a substantially straight inner surface and a straight or substantially concave bottom configured to accommodate the head of a nut or bolt. The invention is characterized in that the straight or substantially concave bottom comprises, in its central area, an angled recess or depression as a locking element configured to receive and coincide with an edge of a nut or bolt head. Each of the two parallel and opposing sections with a substantially straight inner surface comprises a slope that defines a stop element configured to coincide with a second and a third edge of the nut or bolt head, to provide greater anti-slip locking.Greater grip and greater efficiency for tightening or loosening a nut or bolt, depending on the direction of rotation.

Description

Spanish-type wrench with anti-slip locking means iviA / a / ¿u¿ i / uuozzo FIELD OF INVENTION The present invention relates to the mechanical field in general, specifically to hand tools. More specifically, it relates to a wrench with anti-slip locking means that secures the wrench in use, preventing slippage and helping to distribute the force applied. This design defines three points of contact with the nut or screw head, thus preventing damage to the inner faces of the wrench jaws, the flat faces of the nut, and / or the flat faces of the screw head. BACKGROUND OF THE INVENTION Modern Spanish-type wrenches consist of a steel bar that at least one end is forged or defined as an open "U" shaped mouth with a concave bottom, defining two substantially straight and flat sections, and a substantially concave bottom, configured to accommodate the head of a hexagonal nut or bolt. The opening measurement of the mouth coincides with the measurement of the head of a hexagonal nut or bolt, and when used, applying torque can tighten or loosen the nut or bolt, depending on the direction of rotation. The wrench jaws have a geometry already described, which allows two opposite flat faces of a hexagonal nut or bolt head to rest on their substantially straight and flat sections. This causes them to lock into place, allowing the nut or bolt to be tightened or loosened depending on the direction of rotation when torque is applied. These substantially straight and flat sections, along with the substantially concave bottom due to their configuration and design, reduce the wrench's strength. Wrenches can cause damage to both the flat faces of nuts or bolt heads and to the wrench itself, since, when torque is applied, the flat surfaces tend to slip and wear down. Furthermore, current wrench systems only work with hexagonal nuts and bolt heads. The present invention is directed to a Spanish-type wrench with anti-slip locking means that locks the grip of the wrench in use, preventing its slippage and helping to distribute the force exerted on it, defining three support points on the nut or screw head, thus avoiding damage to the internal faces of the wrench opening, damage to the flat faces of the nut and / or the flat faces of the screw head. IVIA / a / ZUZ I / UUOZZO A search was conducted to determine the closest prior art, and the following documents were found. Document FR246731 2 (A1) by Lambert Jean-Paul, dated October 8, 1979, was located, disclosing a locking screw comprising a screwed upper portion (a) countersunk to accommodate a standard hex key and a screwed lower portion (b) countersunk for a smaller hex key than the upper portion. The two halves are connected by a reduced-diameter section (c). The screw is tightened with the larger upper hex key. At the end of its travel, a continuation of the turning force will produce a shear torque (in the S-plane), the magnitude of which is determined by the thickness of section (c). After the shearing, all the turning action acts solely on the upper portion, and deformation (7) occurs, locking the two elements. Patent MX 2631 96, issued by Hugo Edmundo Muñoz Herrera on August 17, 2004, was located. It discloses wrenches for handling nuts and similar fasteners, of the type having a fixed jaw between two fixed jaws with a movable attachment that allows the jaw opening to be modified for simultaneous use on two opposite faces of six or more nuts or similar fasteners. A single wrench is equivalent to at least three or more fixed wrenches of different sizes. In its basic design, to give an illustrative example (though not limiting to the present invention), it has the following sizes: 1 / 4", 3 / 8", 1 / 2", 5 / 8", 3 / 4", and 7 / 8" in imperial units, and 7 mm, 10 mm, 17 mm, and 20 mm in metric units.However, in this case, it requires a movable attachment that allows modifying the opening of the jaw to be used simultaneously on two opposite faces in 6 or more dimensions of said nuts or similar; but it does not solve the problem of lack of adjustment, slippage during use, nor the damage or effects generated to both the wrench and the nut. Patent application MX / a / 2007 / 00051 6 by Peter C. Chaconas, dated January 12, 2007, was located, disclosing an open-end wrench for use with a fastener having a polygonal gripping portion, an elongated body, a first jaw having a first gripping surface, and a second jaw having a second gripping surface. The jaws form a groove between them, having a closed end and an open end. The gripping surfaces are arranged with mating surfaces such that most of the force vector components applied normal to the first and second gripping surfaces are arranged parallel to the handle axis of the wrench. However, this wrench does not solve the problem of lack of adjustment, the existence of slippage during its use, nor the damage or effects generated to both the wrench and the nut, and does not allow a firm, safe and resistant grip. Given the need for a Spanish-type wrench that, when in use, makes contact with three points of a nut and / or the head of a screw and has a locking system that functions as a mechanical stop to prevent the wrench from separating from the nut and / or screw head in use, the present invention was developed. OBJECTIVES OF THE INVENTION The main objective of the present invention is to make available a Spanish-type wrench with anti-slip locking means that defines three support points on the nut or screw head, allowing better distribution of forces in the wrench, helping to improve resistance, and reducing damage to the faces of the nuts and / or screw heads. The main objective of the present invention is to make available a Spanish-type wrench with anti-slip locking means, which also prevents damage to the internal faces of the wrench opening. iviA / a / ¿u¿ i / uuozzo The main objective of the present invention is to make available a Spanish-type wrench with anti-slip locking means, which also prevents accidents due to the wrench slipping with the nut and / or screw head since it locks the wrench in use and that the jaw is compatible with hexagonal and flat nuts. The main objective of the present invention is to make available a Spanish-type wrench with non-slip locking means, which also allows a firm, safe and resistant grip. The main objective of the present invention is to make available a Spanish-type wrench with anti-slip locking means, which also withstands the torque applied to tighten or loosen hexagonal and flat nuts or bolts. The main objective of the present invention is to make available a Spanish-type wrench with anti-slip locking means, which is also structurally simple, practical, easy to use and easy to operate by a user. The main objective of the present invention is to make available a Spanish-type wrench with anti-slip locking means, which is also versatile in its use, easy to handle, resistant and durable. And all those qualities and objectives that will become apparent when making a general and detailed description of the present invention supported by the illustrated modalities. ινΐΛ / a / zuz i / uuozzo BRIEF DESCRIPTION OF THE INVENTION In general, the Spanish-type wrench with anti-slip locking means according to the present invention comprises a metal bar that at at least one of its ends comprises an open mouth in the shape of a “U” that defines two parallel and opposite sections of substantially straight inner surface and a straight or substantially concave bottom configured to accommodate the head of a nut or bolt;wherein said straight or substantially concave bottom comprises in its central zone an angled notch, recess or depression as a locking element configured to receive and coincide with an edge of a nut or screw head and wherein each of said two parallel and opposite sections of substantially straight internal surface comprises a difference in level that defines a stop element configured to coincide, each, with a second and a third edge of the nut or screw head, to offer greater anti-slip locking, greater grip and greater efficiency in tightening or loosening a nut or screw, depending on the direction of rotation.; In the use of a Spanish-type wrench with anti-slip locking means in accordance with the present invention, three contact points are generated: a first support point is generated between the notch, recess or angled depression of the straight or substantially concave bottom of the jaw with an edge of a nut or screw head; a second support point is generated between a second edge of a nut or screw head and one of the two stop elements of one of the two parallel and opposite sections of substantially straight internal surface of the jaw; and the third support point is generated in an area of ​​one of the two parallel and opposite sections of substantially straight internal surface of the jaw, close to the straight or substantially concave bottom; depending on the direction of rotation of the wrench, whether to loosen or tighten the nut or screw. In the preferred embodiment of the invention, said notch, recess or angled depression made in the straight or substantially concave bottom of the open mouth of said key, is in the shape of a “v” or in the shape of a “u”. In the preferred embodiment of the invention, the difference in level that defines a stop element in each of said two parallel and opposite sections of substantially straight internal surface, is a right-angled step. iviA / a / ¿u¿ i / uuozzo In the preferred embodiment of the invention, the difference in level that defines a stop element in each of said two parallel and opposite sections of substantially straight internal surface, is an acute-angled step. This design helps distribute the force applied to the wrench, as it has three points of contact with the nut, preventing damage to the inside of the wrench jaws, the flat faces of the nut, and / or the flat faces of the bolt head. The design also helps lock the wrench in place during use to prevent accidents that could result from the wrench slipping on the nut and / or bolt. The geometric configuration described helps to distribute the loads and at the same time, when using the wrench, blocks the separation of the jaw from the nut and / or screw head. To better understand the characteristics of the present invention, the following drawings, which are illustrative but not limiting, are included as an integral part of this description. ινΐΛ / a / zuz i / uuozzo BRIEF DESCRIPTION OF THE FIGURES IVIA / a / ZUZ I / UUOZZO Figure 1 shows a side view of the Spanish-type wrench with anti-slip locking means, with an enlarged opening, incorporating the teachings of the present invention. Figure 2 shows a side view of the Spanish-type wrench with anti-slip locking means, showing an enlargement of the jaws illustrating the three contact points on the body of the nut or hexagonal screw head, with the teachings of the present invention. Figure 3 shows a side view of the Spanish-type wrench with anti-slip locking means, showing an enlargement of the opening that illustrates the contact between an edge of a nut or screw head with a stop element of a parallel and opposite section of substantially straight internal surface of said U-shaped open opening of the wrench. For a better understanding of the invention, a detailed description of some of its modalities will be given, shown in the drawings that are attached to this description for illustrative but not limiting purposes. DETAILED DESCRIPTION OF THE INVENTION The characteristic details of the Spanish-type wrench with anti-slip locking means are clearly shown in the following description and in the attached illustrative drawings, with the same reference signs serving to indicate the same parts. Referring to figures 1 to 3, the Spanish-type wrench with anti-slip locking means according to the present invention comprises a metal bar (1) which at at least one of its ends comprises an open mouth in the shape of a “U” (2) that defines two parallel and opposite sections of substantially straight inner surface (3, 4) and a straight or substantially concave bottom (5) configured to accommodate the head of a nut or screw (6);wherein said straight or substantially concave bottom (5) comprises in its central zone an angled notch, recess or depression (7) as a locking element, configured to receive and coincide with an edge (8) of the nut or screw head (6) and wherein each of said two parallel and opposite sections of substantially straight internal surface (3, 4) comprises a slope that defines a stop element (9, 10) configured to coincide, each, with a second and a third edge (8a, 8b) of the nut or screw head (6), to offer greater anti-slip locking, greater grip and greater efficiency for tightening or loosening a nut or screw (6), depending on the direction of rotation.; The difference in level defined by a stop element (9, 10) in each of the two parallel and opposite sections of substantially straight internal surface (3, 4) is a right-angled step. Referring to Figure 2 in the use of a Spanish-type wrench with anti-slip locking means in accordance with the present invention, in this case the wrench is turned in the direction of the arrow shown, (clockwise, which would be for tightening a nut or screw) three contact points are generated, a first support point (b) is generated between the notch, recess or angled depression (7) of the straight or substantially concave bottom (5) of the mouth (2) with an edge (8) of a nut or screw head (6); a second support point (c) between a second edge (8b) of a nut or screw head (6) and the stop element (10) of the parallel and opposite section of substantially straight internal surface (4) of the mouth (2) and the third support point (a) is generated in an area of ​​the parallel and opposite section of substantially straight internal surface (3) of the mouth (2), close to the straight or substantially concave bottom (5). ινΐΛ / a / zuz i / uuozzo If the key is turned counterclockwise (i.e., to loosen the nut or screw head (6)), the support points (c) and (a) are reversed. Figure 3 shows an enlargement of the detail of the contact point (c) between a second edge (8b) of a nut or screw head (6) and the stop element (10) of the parallel and opposite section of substantially straight internal surface (4) of the mouth (2). The invention has been sufficiently described to enable a person with average knowledge of the art to reproduce it and obtain the results mentioned herein. However, any person skilled in the field of the art to which the present invention pertains may be able to make modifications not described herein; however, if the application of these modifications to a particular structure or to the manufacturing process thereof requires the subject matter claimed in the following claims, such structures shall be considered within the scope of the invention.

Claims

CLAIMS Having sufficiently described the invention, the following claims are claimed as property. 1.- A Spanish-type wrench with anti-slip locking means of the type formed by a metal bar which at at least one of its ends comprises an open end in the shape of a “U” defining two parallel and opposing sections with a substantially straight inner surface and a straight or substantially concave bottom configured to accommodate the head of a nut or bolt, characterized in that said straight or substantially concave bottom comprises in its central area an angled notch, recess or depression as a locking element configured to receive and coincide with an edge of a nut or bolt head and wherein each of said two parallel and opposing sections with a substantially straight inner surface comprises a slope that defines a stop element configured to coincide, each,with a second and a third edge on the nut or screw head, to offer greater anti-slip locking, greater grip and greater efficiency for tightening or loosening a nut or screw, depending on the direction of rotation. 2.- The Spanish-type key with anti-slip locking means, according to claim 1, characterized in that said notch, recess or angled depression made in the straight or substantially concave bottom of the open mouth of said key, is in the shape of a “v” or in the shape of a “u”.

3. The Spanish-type wrench with anti-slip locking means, according to claim 1, characterized in that said difference in level that defines a stop element in each of said two parallel and opposite sections of substantially straight internal surface, is a right-angled step. 4 - The Spanish-type wrench with anti-slip locking means, according to claim 1, characterized in that said unevenness that defines a stop element in each of said two parallel and opposite sections of substantially straight internal surface, is a step at an acute angle.

5. The Spanish-type wrench with anti-slip locking means, according to any of the preceding claims, characterized in that it defines three points of contact, a first support point is generated between the notch, recess or angled depression of the straight or substantially concave bottom of the jaw with an edge of a nut or screw head; a second support point between a second edge of a nut or screw head and one of the two stop elements of one of the two parallel and opposite sections of substantially straight internal surface of the jaw and the third support point is generated in an area of ​​one of the two parallel and opposite sections of substantially straight internal surface of the jaw, close to the straight or substantially concave bottom; depending on the direction of rotation of the wrench, whether to loosen or tighten the nut or screw.

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