WO2016020564A1 - System comprising a key and security screw or nut and method for using said system - Google Patents

System comprising a key and security screw or nut and method for using said system Download PDF

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Publication number
WO2016020564A1
WO2016020564A1 PCT/ES2015/000109 ES2015000109W WO2016020564A1 WO 2016020564 A1 WO2016020564 A1 WO 2016020564A1 ES 2015000109 W ES2015000109 W ES 2015000109W WO 2016020564 A1 WO2016020564 A1 WO 2016020564A1
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WO
WIPO (PCT)
Prior art keywords
screw
housing
rod
key
wrench
Prior art date
Application number
PCT/ES2015/000109
Other languages
Spanish (es)
French (fr)
Inventor
Fulgencio Palazon Martinez
María Josefa PALAZON MARTINEZ
Original Assignee
Fulgencio Palazon Martinez
Palazon Martinez María Josefa
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Application filed by Fulgencio Palazon Martinez, Palazon Martinez María Josefa filed Critical Fulgencio Palazon Martinez
Publication of WO2016020564A1 publication Critical patent/WO2016020564A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/48—Spanners; Wrenches for special purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins

Definitions

  • the present invention relates to a security screw mounting system configured by said screws and the key that mounts them.
  • the main advantages of this system are the lowering of the screw, this consisting of a very simple and economical piece to manufacture with respect to the traditional security screws; the increase of the security when it is impossible to disassemble the screw without the use of the key; the increase in operability by providing through this system a single key for the assembly of all kinds of screws, modifying only one piece of the key for each type of screw; and the possibility to customize for each user one or several types of key and screw system simply by modifying one of the characteristics of the system.
  • the system consists of a screw or a lock nut consisting of a threaded stud whose upper end has been machined with a certain geometric shape.
  • said stud In the case of the nut, said stud will be hollow.
  • the key on the other hand, is composed in large strokes by a housing that threads on the body of the stud and whose interior houses a piece whose lower end has a geometry coinciding with the machined end of the stud.
  • the screw or nut that is mounted offers a surface of revolution on the outside which does not allow the use of any type of traditional key for disassembly because there is no area where the key can hold the piece, to the time using a threaded glass Without the inner part, the screw could only be tightened, but never disassembled. It is therefore necessary to use the key with its internal part as the only means to enable disassembly.
  • the device that is recommended will have application within the industry of manufacturing anchoring elements such as screws and locknuts. Given its characteristics, the use of the system implies advantages for all those fields in which security screws are applicable.
  • Bolts and locknuts are very commonly used elements for fixing easily accessible elements which are desired that cannot be easily removed, either because they are valuable elements, such as vehicle wheels, special tires or the like, or because these elements restrict access to valuables, such as the cover of arches that contain significant amounts of material.
  • any reference to security screws or anti-theft screws that are made will also be extended to safety nuts, since they are elements that follow a similar operating principle.
  • the most common security screws consist of a traditional screw in whose head it has a particular geometry, or it has a machining with a specific geometric shape, so that to remove said screw it is necessary to
  • an accessory that allows the coupling of a traditional socket wrench, where the accessory is specifically configured for said screw, with a geometry that is coincident with that.
  • One of the main problems presented by this type of screws is its high cost, because the conformation of the special geometry of the head is a complex process that greatly increases its acquisition price, making it unfeasible for use in large quantities . Due to this, the appearance of a security screw with a simple configuration that lowers its cost and allows it to be used in large quantities would be desirable. In this way, it would be possible to apply it in large installations, such as, for example, the cabs of a power line several kilometers long.
  • Safety mooring for automobile wheels It consists of a variant of the anti-theft screw, where the screw head has a warped groove, and that needs a specific tool for its operation.
  • ES0270638_U Mechanism for vehicle wheel anti-theft insurance. It is configured from a bushing that hugs the screw head, where a core is housed that has interlocks that protrude and fit with grooves arranged in the inner wall of the screw head.
  • the safety wrench and screw system that is recommended in this report is configured, as mentioned, from two main parts: a threaded stud whose upper end has a machining that gives it a specific geometry and a key to operate it.
  • the screw may have a single thread for its entire length or have two different sections with a thread of different characteristics in each of them, a lower one to adapt to its mounting location and a higher one for actuation by means of the key.
  • an intermediate flange may be arranged in the boundary zone between both threads that delimits each of the threading zones.
  • the key is configured from a minimum of three different elements: a housing, an inner rod and a cover.
  • the housing is configured as a hollow cylinder, it will be the part that houses the rod inside and will have an internal thread in its lower part that must be adjusted to the screw thread, while in its upper part it will have an external thread for the cover coupling. Also, in its upper part it will have a keyway where the pin of the rod is coupled and a housing area of the rod head where the internal diameter will be larger. The inner diameter of the rest of the housing will be such that it allows the correct coupling of the housing with the safety screw.
  • the housing will have on its outside a recessed area that allows the attachment of a fixed key so as to facilitate the operation of tightening and disassembly effortlessly with the help of said fixed key.
  • the rod is arranged inside the housing, and consists of a cylinder with an outside diameter equal to that of the screw.
  • the rod In its lower part the rod has a machined area that is coincident with the machined area of the upper part of the screw.
  • the upper part of the rod In the upper part of the rod there is a key that will fit properly with an existing keyway in the upper part of the housing.
  • the length of the rod will therefore be equal to the distance between the lower part of the housing area of the rod of the upper part of the housing and the machined area of the safety screw once it has been threaded onto the threaded area of the bottom of the housing.
  • the cover consists of a threaded plug that is coupled to the upper part of the housing by means of the threaded disposed for that purpose and which will have a length such that its lower part will come into contact with the upper part of the rod head.
  • the safety screw to be mounted is screwed into the lower part of the housing, leaving the machined area inside the housing, in its lower part.
  • the fixed key is attached to the recessed area outside the housing.
  • the housing is coupled with the rod inside it on the protruding end of the screw.
  • the appropriate rod is selected for the machining of the screw, and it is inserted through the upper part of the housing.
  • the casing and rod are rotated until the rod is fitted in its lower part with the mechanized area of the screw and in its upper part the key fits into the keyway of the upper part of the housing.
  • the lid is attached to close the assembly.
  • the fixed key is attached to the recessed area outside the housing.
  • the lid has a stem section in its lower part, so that in this case the rod is configured as a cylinder that in its upper part would have a coupling with said head, so that it is transmitted the turn to it at the time of disassembly.
  • the essentiality of the invention consists in the fact that the safety screw fits over a housing, which can be of a piece or be divided into several, where said housing inside has a rod whose lower part fits over the top of the screw and in its upper part has means to support its rotation with the rotation of the housing, also providing a cover upper which will prevent the movement of the rod in the axial direction of the key.
  • Fig. 1 Perspective view of the key and the safety screw in the mounting position.
  • Fig. 3. View of the safety screw.
  • Fig. 4. Perspective view of the stem.
  • the safety screw (1) has two differentiated threaded zones, a lower threaded zone (12) and an upper threaded zone (10). Both zones are separated by an intermediate flange (1 1). Area Bottom threaded screw (12) will allow its coupling to the mounting area (5).
  • the upper threaded area of the screw (10) is coupled on the housing (2), thanks to the lower threaded area of the housing (6).
  • the underside of the housing (18) will rest on the flange of the screw (1 1) once both elements are coupled.
  • the screw (1) has a machined area (9) consisting in the present example in a cut made transversely at 45 °. As indicated, this lowered area may have very different geometries.
  • the housing (2) has in its upper part a threaded area for the cover (7) and in its outer part a recessed area (8) for the provision of a fixed key.
  • the upper threaded area of the housing (7) will allow the coupling with the cover (3).
  • the rod (13) has in its lower part a machined area (15) coinciding with the mechanized area of the screw (9).
  • the upper face of the rod (19) will rest on the lower face of the cover (17)
  • the cover has an internal thread (16) that allows the coupling with the upper thread of the housing (7).
  • the screw (1) is screwed into the lower part of the housing (6), leaving the machined area (9) inside the housing (2).
  • the fixed key is inserted in the recessed area outside the housing (8).
  • the housing (2) is coupled on the upper threaded area of the screw (10).
  • the rod (13) suitable for machining (9) of the screw (1) is selected, and it is inserted through the upper part of the housing (2).
  • the cover (3) is attached to close the assembly.
  • the fixed key is inserted in the recessed area (8) to facilitate rotation.

Abstract

The invention relates to a system for the screwing of security or antitheft screws or nuts, formed by a screw (1) or nut and a key formed by: a casing (2); a rod (13); and a cover (3), said system being characterised in that the security screw (1) has an upper thread (10) and a lower thread (12), the upper thread being coupled to the casing (2). The interior of said casing (2) has a rod (13) consisting of a cylinder having an exterior diameter equal to that of the screw, the lower part (15) of the rod fitting on the upper part of the screw (9). The rod comprises means allowing same to rotate interdependently with the casing (2). The system also comprises an upper cover (3) that prevents the rod (13) from moving in the axial direction of the key.

Description

SISTEMA DE LLAVE Y TORNILLO O TUERCA DE SEGURIDAD Y PROCEDIMIENTO PARA UTILIZACIÓN DE DICHO SISTEMA  WRENCH AND SCREW SYSTEM OR SAFETY NUT AND PROCEDURE FOR THE USE OF SUCH SYSTEM
D E S C R I P C I Ó N D E S C R I P C I Ó N
OBJETO DE LA INVENCIÓN OBJECT OF THE INVENTION
La presente invención se refiere a un sistema de montaje de tornillos de seguridad configurado por dichos tornillos y la llave que los monta. Las principales ventajas de este sistema consisten en el abaratamiento del tornillo, consistiendo éste en una pieza muy sencilla y económica de fabricar con respecto a los tradicionales tornillos de seguridad; el aumento de la seguridad al resultar imposible el desmontaje del tornillo sin el empleo de la llave; el aumento de la operatividad al proporcionarse mediante este sistema una única llave para el montaje de todas las clases de tornillos, modificando únicamente una pieza de la llave para cada tipo de tornillo; y la posibilidad de personalizar para cada usuario uno o varios tipos de sistema de llave y tornillo simplemente modificando una de las características del sistema. Más concretamente, el sistema está compuesto por un tornillo o una tuerca de seguridad consistente en un espárrago roscado cuyo extremo superior ha sido mecanizado con una forma geométrica determinada. En el caso de la tuerca, dicho espárrago será hueco. La llave por su parte, está compuesta a grandes trazos por una carcasa que rosca sobre el cuerpo del espárrago y cuyo interior aloja una pieza cuyo extremo inferior dispone de una geometría coincidente con el extremo mecanizado del espárrago. The present invention relates to a security screw mounting system configured by said screws and the key that mounts them. The main advantages of this system are the lowering of the screw, this consisting of a very simple and economical piece to manufacture with respect to the traditional security screws; the increase of the security when it is impossible to disassemble the screw without the use of the key; the increase in operability by providing through this system a single key for the assembly of all kinds of screws, modifying only one piece of the key for each type of screw; and the possibility to customize for each user one or several types of key and screw system simply by modifying one of the characteristics of the system. More specifically, the system consists of a screw or a lock nut consisting of a threaded stud whose upper end has been machined with a certain geometric shape. In the case of the nut, said stud will be hollow. The key on the other hand, is composed in large strokes by a housing that threads on the body of the stud and whose interior houses a piece whose lower end has a geometry coinciding with the machined end of the stud.
Mediante este sistema, el tornillo o la tuerca que se monta ofrece una superficie de revolución en su exterior la cual no permite la utilización de ningún tipo de llave tradicional para su desmontaje al no existir una zona donde la llave pueda sujetar la pieza, a la vez que empleando un vaso roscado sin la pieza interior únicamente se podría apretar el tornillo, pero nunca desmontar. Se hace por tanto necesario el empleo de la llave con su pieza interna como único medio para posibilitar el desmontaje. Through this system, the screw or nut that is mounted offers a surface of revolution on the outside which does not allow the use of any type of traditional key for disassembly because there is no area where the key can hold the piece, to the time using a threaded glass Without the inner part, the screw could only be tightened, but never disassembled. It is therefore necessary to use the key with its internal part as the only means to enable disassembly.
CAMPO DE APLICACIÓN SCOPE
El dispositivo que se preconiza tendrá aplicación dentro de la industria de fabricación de elementos de anclaje tales como tornillos y tuercas de seguridad. Dadas sus características, el uso del sistema supone ventajas para todo aquel campo en el que sean de aplicación tornillos de seguridad. The device that is recommended will have application within the industry of manufacturing anchoring elements such as screws and locknuts. Given its characteristics, the use of the system implies advantages for all those fields in which security screws are applicable.
ANTECEDENTES BACKGROUND
Los tornillos y tuercas de seguridad son elementos muy habitualmente empleados para la fijación de elementos de fácil acceso los cuales se desea que no puedan ser fácilmente retirados, bien porque son elementos de valor, como el caso de ruedas de vehículos, llantas especiales o similares, o bien porque dichos elementos restringen el acceso a objetos de valor como puede ser el caso de tapas de arquetas que contienen importantes cantidades de material. Bolts and locknuts are very commonly used elements for fixing easily accessible elements which are desired that cannot be easily removed, either because they are valuable elements, such as vehicle wheels, special tires or the like, or because these elements restrict access to valuables, such as the cover of arches that contain significant amounts of material.
En adelante, toda alusión a tornillos de seguridad o tornillos antirrobo que se realice será también extensiva a tuercas de seguridad, dado que son elementos que siguen un principio de funcionamiento análogo. Henceforth, any reference to security screws or anti-theft screws that are made will also be extended to safety nuts, since they are elements that follow a similar operating principle.
Los tornillos de seguridad (también conocidos como tornillos antirrobo) más habituales consisten en un tornillo tradicional en cuya cabeza dispone de una geometría particular, o bien dispone de un mecanizado con una forma geométrica específica, de manera que para retirar dicho tornillo se hace necesario el empleo de un accesorio que permite acoplar una llave de vaso tradicional, donde el accesorio está específicamente configurado para dicho tornillo, con una geometría que resulte coincidente con aquel. Uno de los principales problemas que presentan este tipo de tornillos es su alto coste, debido a que la conformación de la geometría especial de la cabeza supone un proceso complejo que incrementa en gran medida su precio de adquisición, haciéndolo inviable para su empleo en grandes cantidades. Debido a esto, se haría deseable la aparición de un tornillo de seguridad con una configuración sencilla que abarate su coste y permita emplearlo en grandes cantidades. De este modo se posibilitaría su aplicación en instalaciones de gran extensión, como por ejemplo las arquetas de un tendido eléctrico de varios kilómetros de longitud. The most common security screws (also known as anti-theft screws) consist of a traditional screw in whose head it has a particular geometry, or it has a machining with a specific geometric shape, so that to remove said screw it is necessary to The use of an accessory that allows the coupling of a traditional socket wrench, where the accessory is specifically configured for said screw, with a geometry that is coincident with that. One of the main problems presented by this type of screws is its high cost, because the conformation of the special geometry of the head is a complex process that greatly increases its acquisition price, making it unfeasible for use in large quantities . Due to this, the appearance of a security screw with a simple configuration that lowers its cost and allows it to be used in large quantities would be desirable. In this way, it would be possible to apply it in large installations, such as, for example, the cabs of a power line several kilometers long.
La seguridad que ofrecen los tornillos antirrobo tradicionales va en función de la complejidad de la geometría de la cabeza, el sello sobre el que ha de encajar el accesorio de montaje, de modo que cuanto más compleja sea dicho sello más dificultad habrá para copiar la llave que opera dicho tornillo. Sin embargo dicha complejidad incrementa el coste de fabricación y aumenta la posibilidad de que con el paso del tiempo se deteriore alguna parte de dicha geometría imposibilitando así el uso de la llave específica para su retirada. Por este motivo se hace también deseable la simplificación de la geometría de la cabeza del tornillo de seguridad. The security offered by traditional anti-theft screws depends on the complexity of the geometry of the head, the seal on which the mounting accessory must fit, so that the more complex the seal is, the more difficult it will be to copy the key that said screw operates. However, said complexity increases the manufacturing cost and increases the possibility that some part of said geometry will deteriorate over time, thus preventing the use of the specific key for its removal. For this reason, simplification of the geometry of the head of the safety screw is also desirable.
Los tornillos de seguridad que actualmente se comercializan restringen su geometría a unos cuantos modelos, de modo que al usarlos se ha de aceptar el hecho de que habrá más gente que disponga del accesorio específico para retirarlos. Unos tornillos personalizados suponen un coste mucho más elevado aún, agravando el problema de la inviabilidad económica para su uso. Mediante el presente sistema se logra posibilitar la personalización del tornillo al poder modificarse varios parámetros de fácil configuración durante su fabricación, como son la geometría del mecanizado del extremo (pudiendo elegirse entre formas planas, de cuña, triangulares, cuadradas, etc.) y el roscado del tornillo (paso, tipo de rosca, sentido de giro, etc.) Se conoce por parte del titular de la presente solicitud diversos documentos relacionados con sistemas de fijación y llave antirrobo, como son: ES2296566 A1. Tuerca antivandálica y herramienta. Consiste en una tuerca cuya parte exterior es cilindrica y que utiliza una llave para su accionamiento la cual dispone de unos elementos de acuñamiento interiores. The safety screws that are currently marketed restrict their geometry to a few models, so that when using them you have to accept the fact that there will be more people who have the specific accessory to remove them. Custom screws are a much higher cost, aggravating the problem of economic unfeasibility for use. Through this system it is possible to customize the screw by modifying several easily configurable parameters during its manufacture, such as the geometry of the machining of the end (being able to choose between flat, wedge, triangular, square shapes, etc.) and the screw threading (pitch, thread type, direction of rotation, etc.) Various documents related to locking systems and anti-theft key are known from the holder of the present application, such as: ES2296566 A1. Vandal nut and tool. It consists of a nut whose outer part is cylindrical and that uses a key for its drive which has internal wedging elements.
ES0292553 U. Amarre de seguridad para ruedas de automóviles. Consiste en una variante del tornillo antirrobo, donde la cabeza del tornillo dispone de una acanaladura alabeada, y que necesita de un útil específico para su accionamiento. ES0292553 U. Safety mooring for automobile wheels. It consists of a variant of the anti-theft screw, where the screw head has a warped groove, and that needs a specific tool for its operation.
ES0250881 U. Tornillos y tuercas antirrobo. Resultan una variante del anterior sistema, donde en lugar de una acanaladura en la frontal de la cabeza del tornillo se dispone una serie de orificios de modo que el accionamiento del tornillo sólo es posible mediante un accesorio cuya geometría coincida con la distribución de dichos orificios. ES0250881 U. Bolts and anti-theft nuts. They result in a variant of the previous system, where instead of a groove in the front of the screw head a series of holes are arranged so that the screw drive is only possible by means of an accessory whose geometry coincides with the distribution of said holes.
ES0270638_U. Mecanismo para el seguro antirrobo de ruedas de vehículos. Se configura a partir de un casquillo que abraza la cabeza del tornillo, donde se aloja un núcleo que dispone de unos enclavamientos que sobresalen y que encajan con unas ranuras dispuestas en la pared interior de la cabeza del tornillo. ES0270638_U. Mechanism for vehicle wheel anti-theft insurance. It is configured from a bushing that hugs the screw head, where a core is housed that has interlocks that protrude and fit with grooves arranged in the inner wall of the screw head.
Ninguno de los documentos citados resuelve los problemas comentados de la manera en que lo hace el sistema que se preconiza en la presente memoria, pudiéndose afirmar que no es conocida por parte del titular, por tanto, ningún dispositivo de características similares, en base a lo cual se solicita la protección ofrecida a este tipo de invenciones. DESCRIPCIÓN DE LA INVENCIÓN. None of the aforementioned documents solve the problems mentioned in the manner in which the system described in this report does, and it can be said that it is not known by the owner, therefore, no device of similar characteristics, based on the which is requested the protection offered to this type of inventions. DESCRIPTION OF THE INVENTION
El sistema de llave y tornillo de seguridad que se preconiza en la presente memoria se configura, tal y como se ha comentado, a partir de dos piezas principales: un espárrago roscado cuyo extremo superior dispone de un mecanizado que le confiere una geometría determinada y una llave para operarlo. The safety wrench and screw system that is recommended in this report is configured, as mentioned, from two main parts: a threaded stud whose upper end has a machining that gives it a specific geometry and a key to operate it.
El tornillo podrá disponer de un roscado único para toda su longitud o bien disponer de dos tramos diferenciados con un roscado de características diferentes en cada uno de ellos, uno inferior para adaptarse a su lugar de montaje y otro superior para el accionado mediante la llave. Asimismo, se podrá disponer un reborde intermedio en la zona límite entre ambos roscados que delimite cada una de las zonas de roscado. The screw may have a single thread for its entire length or have two different sections with a thread of different characteristics in each of them, a lower one to adapt to its mounting location and a higher one for actuation by means of the key. Likewise, an intermediate flange may be arranged in the boundary zone between both threads that delimits each of the threading zones.
La llave se configura a partir de un mínimo de tres elementos diferenciados: una carcasa, un vástago interior y una tapa. The key is configured from a minimum of three different elements: a housing, an inner rod and a cover.
La carcasa se configura como un cilindro hueco será la parte que aloje en su interior el vástago y dispondrá en su parte inferior de un roscado interior que se deberá ajustar al roscado del tornillo, mientras que en su parte superior dispondrá de un roscado exterior para el acople de la tapa. Asimismo, en su parte superior dispondrá de un chavetero donde se acopla la chaveta del vástago y de una zona de alojamiento del cabezal del vástago donde el diámetro interno será mayor. El diámetro interior del resto de la carcasa será tal que permita el acople correcto de ésta con el tornillo de seguridad. La carcasa dispondrá en su parte exterior de una zona rebajada que permita el acople de una llave fija de modo que se facilite la operación de apriete y de desmontaje sin esfuerzo con ayuda de dicha llave fija. El vástago se dispone el interior de la carcasa, y consiste en un cilindro de diámetro exterior igual al del tornillo. En su parte inferior el vástago dispone de una zona mecanizada que resulta coincidente con la zona mecanizada de la parte superior del tornillo. En la parte superior del vástago se halla una chaveta que encajará adecuadamente con un chavetero existente en la parte superior de la carcasa. La longitud del vástago será igual por tanto a la distancia existente entre la parte inferior de la zona de alojamiento del vástago de la parte superior de la carcasa y la zona mecanizada del tornillo de seguridad una vez que éste ha sido roscado sobre la zona roscada de la parte inferior de la carcasa. The housing is configured as a hollow cylinder, it will be the part that houses the rod inside and will have an internal thread in its lower part that must be adjusted to the screw thread, while in its upper part it will have an external thread for the cover coupling. Also, in its upper part it will have a keyway where the pin of the rod is coupled and a housing area of the rod head where the internal diameter will be larger. The inner diameter of the rest of the housing will be such that it allows the correct coupling of the housing with the safety screw. The housing will have on its outside a recessed area that allows the attachment of a fixed key so as to facilitate the operation of tightening and disassembly effortlessly with the help of said fixed key. The rod is arranged inside the housing, and consists of a cylinder with an outside diameter equal to that of the screw. In its lower part the rod has a machined area that is coincident with the machined area of the upper part of the screw. In the upper part of the rod there is a key that will fit properly with an existing keyway in the upper part of the housing. The length of the rod will therefore be equal to the distance between the lower part of the housing area of the rod of the upper part of the housing and the machined area of the safety screw once it has been threaded onto the threaded area of the bottom of the housing.
La tapa consiste en un tapón roscado que se acopla a la parte superior de la carcasa mediante el roscado dispuesto a tal efecto y que tendrá una longitud tal que su parte inferior entrará en contacto con la parte superior de la cabeza del vástago. The cover consists of a threaded plug that is coupled to the upper part of the housing by means of the threaded disposed for that purpose and which will have a length such that its lower part will come into contact with the upper part of the rod head.
Según lo indicado, el procedimiento de montaje de un tornillo de seguridad mediante el presente sistema conlleva las siguientes etapas. As indicated, the procedure for mounting a safety screw by means of this system involves the following steps.
El tornillo de seguridad a montar se enrosca en la parte inferior de la carcasa, quedando la zona mecanizada en el interior de la carcasa, en su parte inferior. Se acopla la llave fija a la zona rebajada del exterior de la carcasa. The safety screw to be mounted is screwed into the lower part of the housing, leaving the machined area inside the housing, in its lower part. The fixed key is attached to the recessed area outside the housing.
Se procede mediante apriete a montar el tornillo. Una vez que queda apretado, se retira la carcasa girando en el sentido contrario. Proceed by tightening to mount the screw. Once it is tight, the housing is removed by turning in the opposite direction.
Para el desmontaje del tornillo, los pasos son los siguientes: For disassembly of the screw, the steps are as follows:
Se acopla la carcasa con el vástago en su interior sobre el extremo sobresaliente del tornillo. The housing is coupled with the rod inside it on the protruding end of the screw.
Se selecciona el vástago adecuado al mecanizado del tornillo, y se inserta éste por la parte superior de la carcasa. Se gira carcasa y vástago hasta que el vástago queda encajado en su parte inferior con la zona mecanizada del tornillo y en su parte superior la chaveta encaja en el chavetero de la parte superior de la carcasa. The appropriate rod is selected for the machining of the screw, and it is inserted through the upper part of the housing. The casing and rod are rotated until the rod is fitted in its lower part with the mechanized area of the screw and in its upper part the key fits into the keyway of the upper part of the housing.
Se acopla la tapa para cerrar el conjunto. The lid is attached to close the assembly.
Se acopla la llave fija a la zona rebajada del exterior de la carcasa.  The fixed key is attached to the recessed area outside the housing.
Se procede a girar en el sentido de desmontaje del tornillo. En este momento el vástago presiona sobre el tornillo obligándolo a girar.  It is turned in the direction of disassembly of the screw. At this time the rod presses on the screw forcing it to rotate.
A partir de la configuración básica que se ha descrito en los párrafos anteriores, existen multitud de variantes que se pueden aplicar sobre dicha configuración, las cuales no alterarán el principio de la invención. Por ejemplo, es posible dividir la carcasa en dos partes diferenciadas, añadiendo a la carcasa anteriormente citada un acople inferior que dispone en su parte inferior del roscado adecuado al tornillo. De esta manera en el caso de variar las características del roscado del tornillo, bastaría con modificar el acople inferior, pudiendo emplearse en todo momento la carcasa original. From the basic configuration described in the previous paragraphs, there are many variants that can be applied to said configuration, which will not alter the principle of the invention. For example, it is possible to divide the housing into two different parts, adding to the aforementioned housing a lower coupling that has the appropriate thread in its lower part to the screw. Thus, in the case of varying the screw threading characteristics, it would be enough to modify the lower coupling, the original housing being able to be used at all times.
Otra posibilidad consiste en que la tapa disponga en su parte inferior de un tramo de vástago, de modo que en este caso el vástago se configura como un cilindro que en su parte superior dispondría de un acoplamiento con el citado cabezal, de manera que se transmita el giro a éste en el momento del desmontaje. Another possibility is that the lid has a stem section in its lower part, so that in this case the rod is configured as a cylinder that in its upper part would have a coupling with said head, so that it is transmitted the turn to it at the time of disassembly.
Otra posible alternativa consistirá en la realización de un orificio pasante a la carcasa y al vástago, de manera que mediante un útil tipo palanca que se emplee atraviese ambas piezas y cumpla al mismo tiempo las funciones del chavetero y la chaveta citados anteriormente, pudiendo en este caso prescindirse de estos. En resumen, la esencialidad de la invención consiste en el hecho de que el tornillo de seguridad encaja sobre una carcasa, que puede ser de una pieza o estar dividida en varias, donde dicha carcasa en su interior dispone de un vástago cuya parte inferior encaja sobre la parte superior del tornillo y en su parte superior dispone de medios para solidarizar su giro con el giro de la carcasa, disponiendo además una tapa superior que impedirá el movimiento del vástago en el sentido axial de la llave. Another possible alternative will consist of the realization of a through hole to the housing and the rod, so that by means of a useful lever type that is used, it crosses both pieces and fulfills at the same time the functions of the keyway and the key mentioned above, being able in this case dispense with these. In summary, the essentiality of the invention consists in the fact that the safety screw fits over a housing, which can be of a piece or be divided into several, where said housing inside has a rod whose lower part fits over the top of the screw and in its upper part has means to support its rotation with the rotation of the housing, also providing a cover upper which will prevent the movement of the rod in the axial direction of the key.
DESCRIPCIÓN DE LOS DIBUJOS DESCRIPTION OF THE DRAWINGS
Fig. 1. Vista en perspectiva de la llave y el tornillo de seguridad en posición de montaje. Fig. 1. Perspective view of the key and the safety screw in the mounting position.
Fig. 2. Sección de la carcasa. Fig. 2. Housing section.
Fig. 3. Vista del tornillo de seguridad. Fig. 3. View of the safety screw.
Fig. 4. Vista en perspectiva del vástago. Fig. 4. Perspective view of the stem.
Fig. 5. Sección de la tapa. Fig. 6. Vista en perspectiva del montaje, con la carcasa y la tapa seccionadas para mejor observación del interior de la llave. Fig. 5. Cover section. Fig. 6. Perspective view of the assembly, with the housing and lid sectioned for better observation of the interior of the key.
DESCRIPCIÓN DE LA FORMA DE REALIZACIÓN PREFERIDA DESCRIPTION OF THE PREFERRED EMBODIMENT
A la vista de las mencionadas figuras, y sin pretender en modo alguno limitar el alcance de la descripción, se describe un ejemplo de realización preferida. In view of the aforementioned figures, and without in any way limiting the scope of the description, a preferred embodiment example is described.
El tornillo de seguridad (1) dispone de dos zonas roscadas diferenciadas, una zona roscada inferior (12) y una zona roscada superior (10). Ambas zonas están separadas por un reborde intermedio (1 1). La zona roscada inferior del tornillo (12) permitirá su acoplamiento a la zona de montaje (5). The safety screw (1) has two differentiated threaded zones, a lower threaded zone (12) and an upper threaded zone (10). Both zones are separated by an intermediate flange (1 1). Area Bottom threaded screw (12) will allow its coupling to the mounting area (5).
La zona roscada superior del tornillo (10) se acopla sobre la carcasa (2), gracias a la zona roscada inferior de la carcasa (6). La cara inferior de la carcasa (18) descansará sobre el reborde del tornillo (1 1) una vez acoplados ambos elementos. En su parte superior, el tornillo (1) dispone de una zona mecanizada (9) consistente en el presente ejemplo en un corte realizado transversalmente a 45°. Tal y como se ha indicado, esta zona rebajada podrá tener muy diferentes geometrías. The upper threaded area of the screw (10) is coupled on the housing (2), thanks to the lower threaded area of the housing (6). The underside of the housing (18) will rest on the flange of the screw (1 1) once both elements are coupled. In its upper part, the screw (1) has a machined area (9) consisting in the present example in a cut made transversely at 45 °. As indicated, this lowered area may have very different geometries.
La carcasa (2) dispone en su parte superior de una zona roscada para la tapa (7) y en su parte exterior una zona rebajada (8) para la disposición de una llave fija. La zona roscada superior de la carcasa (7) permitirá el acople con la tapa (3). The housing (2) has in its upper part a threaded area for the cover (7) and in its outer part a recessed area (8) for the provision of a fixed key. The upper threaded area of the housing (7) will allow the coupling with the cover (3).
El vástago (13) dispone en su parte inferior de una zona mecanizada (15) coincidente con la zona mecanizada del tornillo (9). La cara superior del vástago (19) apoyará sobre la cara inferior de la tapa (17) The rod (13) has in its lower part a machined area (15) coinciding with the mechanized area of the screw (9). The upper face of the rod (19) will rest on the lower face of the cover (17)
La tapa dispone de un roscado interno (16) que permite el acople con el roscado superior de la carcasa (7). The cover has an internal thread (16) that allows the coupling with the upper thread of the housing (7).
A la vista de la disposición de elementos descrita, el procedimiento de montaje del tornillo (1) sobre la zona de montaje (5) será el siguiente: In view of the arrangement of elements described, the procedure for mounting the screw (1) on the mounting area (5) will be as follows:
El tornillo (1) se enrosca en la parte inferior de la carcasa (6), quedando la zona mecanizada (9) en el interior de la carcasa (2). The screw (1) is screwed into the lower part of the housing (6), leaving the machined area (9) inside the housing (2).
Se inserta la llave fija en la zona rebajada del exterior de la carcasa (8).  The fixed key is inserted in the recessed area outside the housing (8).
Se procede mediante apriete a montar el tornillo (1). Una vez que queda apretado, se retira la carcasa (2) girando en el sentido contrario. Mientras que el procedimiento de desmontaje será: Proceed by tightening the screw (1). Once it is tight, the casing (2) is rotated in the opposite direction. While the disassembly procedure will be:
Se acopla la carcasa (2) sobre la zona roscada superior del tornillo (10). The housing (2) is coupled on the upper threaded area of the screw (10).
Se selecciona el vástago (13) adecuado al mecanizado (9) del tornillo (1), y se inserta éste por la parte superior de la carcasa (2).  The rod (13) suitable for machining (9) of the screw (1) is selected, and it is inserted through the upper part of the housing (2).
Se gira carcasa (2) y vástago (13), unidos por la chaveta (4) y el chavetero Case (2) and rod (13) are turned, joined by the key (4) and the keyway
(14) hasta que el vástago (13) queda encajado en su parte inferior con la zona mecanizada del tornillo (9). (14) until the rod (13) is fitted in its lower part with the machined area of the screw (9).
Se acopla la tapa (3) para cerrar el conjunto.  The cover (3) is attached to close the assembly.
Se inserta en la zona rebajada (8) la llave fija para facilitar el giro.  The fixed key is inserted in the recessed area (8) to facilitate rotation.
Se procede a girar en el sentido de desmontaje del tornillo (1).  It is turned in the direction of disassembly of the screw (1).
Descrita suficientemente la naturaleza de la presente invención, así como la manera de ponerla en práctica, no se considera necesario hacer más amplia su explicación para que cualquier experto en la materia comprenda su alcance y las ventajas que de ella se derivan, haciendo constar que, dentro de su esencialidad, podrá ser llevada a la práctica en otras formas de realización que difieran en detalle de la indicada a título de ejemplo, y a las cuales alcanzará igualmente la protección que se recaba siempre que no se altere, cambie o modifique su principio fundamental. Describing sufficiently the nature of the present invention, as well as the way of putting it into practice, it is not considered necessary to broaden its explanation so that any person skilled in the art understands its scope and the advantages derived therefrom, stating that, within its essentiality, it may be carried out in other embodiments that differ in detail from that indicated by way of example, and to which it will also achieve the protection that is sought provided that it does not alter, change or modify its fundamental principle .

Claims

R E I V I N D I C A C I O N E S R E I V I N D I C A C I O N E S
SISTEMA DE LLAVE Y TORNILLO DE SEGURIDAD caracterizado por que está formado por un tornillo (1) y una llave compuesta a partir de una carcasa (2), un vástago (13) y una tapa (3), donde el tornillo de seguridad (1) dispone de un roscado superior (10) y un roscado inferior (12) donde el primero se acopla a una carcasa (2), donde dicha carcasa (2) en su interior dispone de un vástago (13) consistente en un cilindro de diámetro exterior igual al del tornillo cuya parte inferior (15) encaja sobre la parte superior del tornillo (9) y el cual dispone de medios para solidarizar su giro con el giro de la carcasa (2), disponiendo además una tapa (3) superior que impedirá el movimiento del vástago (13) en el sentido axial de la llave. WRENCH AND SAFETY SCREW SYSTEM characterized in that it is formed by a screw (1) and a wrench composed of a housing (2), a rod (13) and a cover (3), where the safety screw (1 ) has an upper thread (10) and a lower thread (12) where the first one is coupled to a housing (2), where said housing (2) inside has a rod (13) consisting of a diameter cylinder exterior equal to that of the screw whose lower part (15) fits over the upper part of the screw (9) and which has means to support its rotation with the rotation of the housing (2), also providing an upper cover (3) that it will prevent the movement of the rod (13) in the axial direction of the key.
SISTEMA DE LLAVE Y TORNILLO DE SEGURIDAD según reivindicación 1 , caracterizado por que en el tornillo (1) el roscado superior (10) y el inferior (12) podrán ser iguales. WRENCH AND SAFETY SCREW SYSTEM according to claim 1, characterized in that in the screw (1) the upper thread (10) and the lower one (12) may be the same.
SISTEMA DE LLAVE Y TORNILLO DE SEGURIDAD según reivindicación 1 , caracterizado por que en el tornillo (1) el roscado superiorWRENCH AND SAFETY SCREW SYSTEM according to claim 1, characterized in that in the screw (1) the upper thread
(10) y el inferior (12) podrán estar delimitados por un reborde intermedio(10) and the lower one (12) may be delimited by an intermediate flange
(11) . (eleven) .
SISTEMA DE LLAVE Y TORNILLO DE SEGURIDAD según reivindicación 1 , caracterizado por que la carcasa (2) se configura como un cilindro hueco y aloja en su interior el vástago (13), disponiendo en su parte inferior de un roscado interior (6) que se ajusta al roscado superior del tornillo (12), mientras que en su parte superior dispondrá de un roscado exterior (7) para el acople de la tapa (3). KEY SYSTEM AND SAFETY SCREW according to claim 1, characterized in that the housing (2) is configured as a hollow cylinder and houses inside the rod (13), having an inner thread (6) at its bottom adjusts to the upper thread of the screw (12), while in its upper part there will be an external thread (7) for the coupling of the cover (3).
SISTEMA DE LLAVE Y TORNILLO DE SEGURIDAD según reivindicación 1 , caracterizado por que la carcasa (2) dispondrá en su parte superior de un chavetero (14) donde se acoplara una chaveta (4) de la que dispondrá el vástago. WRENCH AND SAFETY SCREW SYSTEM according to claim 1, characterized in that the housing (2) will have in its part top of a keyway (14) where a key (4) is attached, which will have the rod.
SISTEMA DE LLAVE Y TORNILLO DE SEGURIDAD según reivindicación 1, caracterizado por que la tapa (3) tendrá una longitud tal que su parte inferior (17) entrará en contacto con la parte superior de la cabeza del vástago (13). WRENCH AND SAFETY SCREW SYSTEM according to claim 1, characterized in that the cover (3) will have a length such that its lower part (17) will come into contact with the upper part of the rod head (13).
PROCEDIMIENTO DE MONTAJE Y DESMONTAJE DEL SISTEMA DE LLAVE Y TORNILLO DE SEGURIDAD descrito en las reivindicaciones 1 a 6 caracterizado por que el sistema de montaje del tornillo comprende los siguientes pasos: ASSEMBLY AND DISASSEMBLY PROCEDURE OF THE WRENCH AND SAFETY SCREW SYSTEM described in claims 1 to 6 characterized in that the screw mounting system comprises the following steps:
El tornillo (1) se enrosca en la parte inferior de la carcasa (6), quedando la zona mecanizada (9) en el interior de la carcasa (2). The screw (1) is screwed into the lower part of the housing (6), leaving the machined area (9) inside the housing (2).
Se inserta la llave fija en la zona rebajada del exterior de la carcasa (8).  The fixed key is inserted in the recessed area outside the housing (8).
Se procede mediante apriete a montar el tornillo (1). Una vez que queda apretado, se retira la carcasa (2) girando en el sentido contrario.  Proceed by tightening the screw (1). Once it is tight, the casing (2) is rotated in the opposite direction.
Mientras que el procedimiento de desmontaje consistirá en los siguientes pasos: While the disassembly procedure will consist of the following steps:
Se acopla la carcasa (2) sobre la zona roscada superior del tornillo (10). The housing (2) is coupled on the upper threaded area of the screw (10).
Se selecciona el vástago (13) adecuado al mecanizado (9) del tornillo (1), y se inserta éste por la parte superior de la carcasa (2).  The rod (13) suitable for machining (9) of the screw (1) is selected, and it is inserted through the upper part of the housing (2).
Se gira carcasa (2) y vástago (13), unidos por la chaveta (4) y el chavetero Case (2) and rod (13) are turned, joined by the key (4) and the keyway
(14) hasta que el vástago (13) queda encajado en su parte inferior con la zona mecanizada del tornillo (9). (14) until the rod (13) is fitted in its lower part with the machined area of the screw (9).
Se acopla la tapa (3) para cerrar el conjunto.  The cover (3) is attached to close the assembly.
Se inserta en la zona rebajada (8) la llave fija para facilitar el giro.  The fixed key is inserted in the recessed area (8) to facilitate rotation.
Se procede a girar en el sentido de desmontaje del tornillo (1).  It is turned in the direction of disassembly of the screw (1).
PCT/ES2015/000109 2014-08-08 2015-08-07 System comprising a key and security screw or nut and method for using said system WO2016020564A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201400685A ES2562995B1 (en) 2014-08-08 2014-08-08 Key and screw system or safety nut and procedure for using said system
ESP-201400685 2014-08-08

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1438269A (en) * 1919-05-22 1922-12-12 William F Sehrt Stud-bolt driver
US1631489A (en) * 1924-11-18 1927-06-07 Reece Button Hole Machine Co Tool for inserting or removing screws
US2775153A (en) * 1955-03-25 1956-12-25 Leonard J Parhaniemi Stud drivers and pullers
US5375956A (en) * 1993-03-11 1994-12-27 Pennig; Dietmar Head screw construction for use in fixing the position of an intramedullary nail
FR2875869A1 (en) * 2004-09-27 2006-03-31 Chris Fer Entpr Unipersonnelle Screw and bolt fixation device for lock, has control unit with threading corresponding to that of threaded part with locking unit locking threaded part so that rotation of control unit rotates rod to locking or unlocking ends

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1438269A (en) * 1919-05-22 1922-12-12 William F Sehrt Stud-bolt driver
US1631489A (en) * 1924-11-18 1927-06-07 Reece Button Hole Machine Co Tool for inserting or removing screws
US2775153A (en) * 1955-03-25 1956-12-25 Leonard J Parhaniemi Stud drivers and pullers
US5375956A (en) * 1993-03-11 1994-12-27 Pennig; Dietmar Head screw construction for use in fixing the position of an intramedullary nail
FR2875869A1 (en) * 2004-09-27 2006-03-31 Chris Fer Entpr Unipersonnelle Screw and bolt fixation device for lock, has control unit with threading corresponding to that of threaded part with locking unit locking threaded part so that rotation of control unit rotates rod to locking or unlocking ends

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ES2562995A1 (en) 2016-03-09

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