WO2019215375A1 - Adjustable butt for firearms - Google Patents

Adjustable butt for firearms Download PDF

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Publication number
WO2019215375A1
WO2019215375A1 PCT/ES2019/070313 ES2019070313W WO2019215375A1 WO 2019215375 A1 WO2019215375 A1 WO 2019215375A1 ES 2019070313 W ES2019070313 W ES 2019070313W WO 2019215375 A1 WO2019215375 A1 WO 2019215375A1
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WO
WIPO (PCT)
Prior art keywords
tube
central body
opening
cylinder head
adjustable
Prior art date
Application number
PCT/ES2019/070313
Other languages
Spanish (es)
French (fr)
Inventor
Jordi Gonzalez Paguina
Original Assignee
Jordi Gonzalez Paguina
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jordi Gonzalez Paguina filed Critical Jordi Gonzalez Paguina
Publication of WO2019215375A1 publication Critical patent/WO2019215375A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C23/00—Butts; Butt plates; Stocks
    • F41C23/04—Folding or telescopic stocks or stock parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C23/00—Butts; Butt plates; Stocks
    • F41C23/14—Adjustable stock or stock parts, i.e. adaptable to personal requirements, e.g. length, pitch, cast or drop

Definitions

  • the purpose of the present invention application is to register an adjustable stock for a firearm, which incorporates significant advantages over the techniques used so far.
  • the invention proposes the development of an adjustable cylinder head, which, by its particular arrangement, allows to regulate the relative position between the cylinder head and the handle and keep it perennial, without being affected by the recoil movement of the shots, 10 At the same time it allows the regulation of the longitudinal rotation of the cylinder head independently of the regulation of its distance from the handle.
  • Adjustable butts for firearms that rest on the shoulder are known in the current state of the art, which allow multiple regulations for an adaptation to the physiognomy and particular preferences of a user, in order to optimize the accuracy of the shots.
  • An example of this type of adjustable cylinder head is shown, for example, in US2010212206 and ES2692990.
  • the existing adjustable cylinder heads start from a handle adapted for the coupling in its rear area of a central piece on which the various adapter pieces are joined and regulated.
  • a telescopic tube movable and rotatable inside the centerpiece is used to adjust the distance and angle of the handle relative to the shoulder.
  • the displacement and rotation of the telescopic tube the central part is locked by means of transverse tightening points to the central part.
  • the telescopic tube In the event that the telescopic tube is toothed, its displacement is fixed without the possibility of unwanted movement in one shot, but its rotation is at the expense of the hardness with which the tightening points have been tightened. In the event that the tube is not serrated, the distance setting is also compromised to said tightening at each shot, due to the recoil.
  • the present invention has been developed in order to provide an adjustable stock for firearms that is configured as a novelty within the scope and resolves the aforementioned setbacks.
  • the adjustable cylinder head object of this invention is of the type comprising a central body, of longitudinal geometry, fixable at its front end to the handle of a firearm, which is arranged to hold on its upper side an adjustable spine in its position, and on its rear side a culat ⁇ n, which is linked to the central body and is adjustable in position with respect to the handle through a height regulating part, a lateral displacement regulating part and a pitch regulating part, already Unlike the known adjustable cylinder heads, by means of a rotatable part, regulating only the longitudinal rotation, and an externally threaded tube at its front end for adjusting the distance.
  • the central body comprises a cylindrical hollow, open at its rear end, and at the bottom of which there is an opening, preferably oblong, through which a screw is passed to fix the central body to the handle.
  • the interior of the central body comprises a second tube, with a minimum clearance with respect to said hollow, and whose front end is adjacent to the bottom of the central body.
  • This end of the second tube in turn comprises a bottom with an opening that coincides at least in part with the opening of the central body, so that the screw also fixes this second tube to the handle.
  • this second tube comprises at least one internally threaded portion, so that it allows the external thread of the first tube to be screwed. Since the cylinder head is supported at the rear end of the first tube, the distance between the cylinder head and the handle is regulated by adjusting the screwing. In their condition of use, said threaded portions are preferably located inside the central body.
  • the internally threaded tube can be dispensed with if the central body contains said internal thread, but the manufacturing complexity of the central part is higher.
  • the adjustable cylinder head can comprise two alternative configurations, but not exclusive, to prevent the rotation of the first tube and that it travels with respect to the central body.
  • the central body has a longitudinal opening on its lower side, the width of which can be varied by tightening at least one transverse screw, thus exerting pressure on the first tube and fixing its position.
  • the corresponding transverse holes, enabled on each side of the opening for tightening this at least one screw comprise helicolis, thus avoiding the problems of thread past and improving the durability of the screwed.
  • both the central body and the first and second tubes comprise at least one opening in its upper area where at least one stud contained in the spine is inserted.
  • This stud acts as a latch for the first tube, making it impossible to move and rotate it.
  • its upper opening is longitudinally oblong, to allow the different threading positions.
  • the at least one stud can be fixed to the central body by tightening a cross screw. Thanks to this configuration, the relative position between the cylinder head and the handle does not vary in the least due to the recoil in each shot.
  • a rotatable part is located at the rear end of the first tube.
  • This rotatable piece comprises on the one hand a cylindrical projection that is inserted inside the first tube and on the other side a trunk for the support and regulation of the pitch regulating piece.
  • both comprise means that allow longitudinal rotation but not longitudinal displacement between them.
  • the cylindrical projection comprises a threaded hole, preferably with helicolis
  • the tube comprises an oblong opening, the hole and the opening coinciding in a longitudinal position, such that a screw passes through the oblong opening and is threaded to said hole .
  • the oblong opening allows the circular displacement of the screw inside, thus regulating the rotation between the piece and the tube. Once regulated, its position is fixed by tightening the screw.
  • the centerpiece its bottom contains a projection projected outwards, which fits into a cavity comprised in the back of the handle. In this way, possible inclinations of the cylinder head with respect to the handle are avoided.
  • the adjustable cylinder head of the present invention it is possible to regulate the relative position between the cylinder head and the handle and keep it perennial, without affecting the recoil movement of the shots, while allowing the regulation of the longitudinal rotation of the culat ⁇ n independently of the regulation of his distance with respect to the handle.
  • Figure 1 It is a perspective view of an explosion of the preferred embodiment of the adjustable cylinder head of the present invention.
  • Figure 2. It is a view of the lower floor of the preferred embodiment of the central body.
  • the preferred embodiment of the present adjustable cylinder head comprises a central body (1), of geometry longitudinal, fixable at its end before the handle (not shown) of a firearm.
  • the central body (1) is arranged to hold on its upper side a spine (2) adjustable in position, and on its rear side a padded stock (3), adjustable in position with respect to the handle through a regulating part of the height (4), a regulating piece of the lateral displacement (5) to which the previous piece is linked, a pitch regulating piece (6) to which the previous piece is linked, a longitudinally rotatable piece (7) to which the previous part is linked, and an externally threaded tube (8) to which the previous part is linked.
  • the central body (1) comprises a cylindrical recess (1 1) open at its rear end and at whose bottom (12) an oblong opening (13) is located, through which a screw (not shown) is passed to fix the central body (1) to the handle.
  • the interior of the central body (1) comprises an internally threaded tube (9), with a minimum clearance with respect to said recess (1 1), and whose front end is adjacent to the bottom (12) of the central body (1).
  • This end of the second tube (9) in turn comprises a bottom (91) with an opening (92) that coincides at least in part with the oblong opening (13) of the central body (1), so that the screw also fixes this second tube (9) to the handle.
  • this second tube (9) comprises an internally threaded portion (not visible in the figure), so that it allows the first tube (8) to be screwed, which in turn comprises an externally threaded portion (81).
  • said threaded potions (81, 91) are located inside the central body (1).
  • the central body (1) has on its lower side a longitudinal opening (14), the width of which can be varied by tightening a transverse screw (not shown) through corresponding transverse holes (15).
  • both the central body (1), and the first and second tubes (8, 9) comprise openings (17, 82, 93) in its upper area, where two studs (21) contained in the loin (2). These studs (21) act as a bolt for the tubes (8,9), making their rotation impossible.
  • its upper opening (82) is longitudinally oblong, to allow the different threading positions.
  • the studs (21) can be fixed to the central body (1) by tightening transverse screws (not shown) located in the upper area of the central body (1).
  • the corresponding upper transverse holes (18) preferably comprise helicolis.
  • a rotatable part (7) is located at the rear end of the first tube (8).
  • This rotatable part (7) comprises on the one hand a cylindrical projection (71) that is inserted inside the first tube (8) and on the other side a trunk (72) for the support and regulation of the pitch regulating part ( 6).
  • this comprises in the cylindrical projection (71) a threaded hole (73), preferably with helicolis, and the tube (8) comprises an opening perimetrically oblong (83), said hole (73) and said opening (83) coinciding in longitudinal position, so that a screw (not shown) crosses the perimeter oblong opening (83) and is threaded to said hole (73).
  • This perimeter oblong opening (83) allows the perimeter displacement of the screw inside, thus regulating the rotation between the piece (7) and the tube (8). Once regulated, its position is fixed by tightening the screw.
  • central part (1) its bottom contains an annular projection (19) projected outwards, which fits into a cavity comprised in the rear part of the handle.
  • annular projection (19) projected outwards, which fits into a cavity comprised in the rear part of the handle.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

The invention relates to an adjustable butt for firearms, comprising a first tube (8) that is externally threaded on a portion of the front end, a second tube (9) that is internally threaded on a portion of the rear end and disposed such that the first tube (8) screws into the second tube, with the front end thereof being accommodated in the base of a central body (1), and with the front end having a base (91) with an opening (92) disposed in order to coincide at least partially with an opening (13) in the central body (1), such that said screw also secures this second tube (9) to the handle, as well as means for securing the first tube (8) in position in relation to the central body (1), and a rotary piece (7) having a main body (72) on the rear side for supporting and adjusting the piece (6) for adjusting the pitch, and having a cylindrical projection (71) on the front side which is introduced into the rear end of the first tube (8) and linked thereto with means that permit longitudinal rotation but no longitudinal movement therebetween.

Description

MEMORIA DESCRIPTIVA  DESCRIPTIVE MEMORY
CULATA REGULABLE PARA ARMAS DE FUEGO ADJUSTABLE HEAD FOR FIREARMS
OBJETO DE LA INVENCIÓN OBJECT OF THE INVENTION
La presente solicitud de invención tiene por objeto el registro de una culata regulable para arma de fuego, que incorpora notables ventajas frente a las técnicas utilizadas hasta el momento. The purpose of the present invention application is to register an adjustable stock for a firearm, which incorporates significant advantages over the techniques used so far.
Más concretamente, la invención propone el desarrollo de una culata regulable, que, por su particular disposición, permite regular la posición relativa entre el culatín y la empuñadura y mantenerla de forma perenne, sin que le afecte el movimiento de retroceso de los disparos, 10 a la vez que permite la regulación de la rotación longitudinal del culatín independientemente de la regulación de su distancia respecto a la empuñadura. More specifically, the invention proposes the development of an adjustable cylinder head, which, by its particular arrangement, allows to regulate the relative position between the cylinder head and the handle and keep it perennial, without being affected by the recoil movement of the shots, 10 At the same time it allows the regulation of the longitudinal rotation of the cylinder head independently of the regulation of its distance from the handle.
ANTECEDENTES DE LA INVENCIÓN BACKGROUND OF THE INVENTION
Son conocidas en el actual estado de la técnica las culatas regulables para armas de fuego que se apoyan en el hombro, las cuales permiten múltiples regulaciones para una adaptación a la fisonomía y preferencias particulares de un usuario, con el fin de optimizar la precisión de los disparos. Un ejemplo de este tipo de culata regulable se muestra por ejemplo en los documentos de patente US2010212206 y ES2692990. Adjustable butts for firearms that rest on the shoulder are known in the current state of the art, which allow multiple regulations for an adaptation to the physiognomy and particular preferences of a user, in order to optimize the accuracy of the shots. An example of this type of adjustable cylinder head is shown, for example, in US2010212206 and ES2692990.
Las culatas regulables existentes parten de una empuñadura adaptada para el acoplamiento en su zona posterior de una pieza central sobre la que se unen y regulan las diversas piezas adaptadoras. De entre estas piezas adaptadoras, un tubo telescópico desplazable y rotable por el interior de la pieza central se utiliza para ajustar la distancia y el ángulo de la empuñadora respecto al hombro. En estas realizaciones existentes, el desplazamiento y rotación del tubo telescópico se traba a la pieza central mediante puntos de apriete transversales a la pieza central. The existing adjustable cylinder heads start from a handle adapted for the coupling in its rear area of a central piece on which the various adapter pieces are joined and regulated. Among these adapter pieces, a telescopic tube movable and rotatable inside the centerpiece is used to adjust the distance and angle of the handle relative to the shoulder. In these existing embodiments, the displacement and rotation of the telescopic tube the central part is locked by means of transverse tightening points to the central part.
En el caso de que el tubo telescópico se encuentre dentado, su desplazamiento queda fijado sin posibilidad de movimiento indeseado en un disparo, pero su rotación queda a expensas de la dureza con la que se hayan apretado los puntos de apriete. En el caso de que el tubo no se encuentre dentado, la fijación de la distancia también se encuentra comprometida a dicho apriete en cada disparo, debido al retroceso. In the event that the telescopic tube is toothed, its displacement is fixed without the possibility of unwanted movement in one shot, but its rotation is at the expense of the hardness with which the tightening points have been tightened. In the event that the tube is not serrated, the distance setting is also compromised to said tightening at each shot, due to the recoil.
Por tanto, todavía hay necesidad de una culata regulable que asegure la fijación de la distancia y la rotación del tubo telescópico de forma perenne. La presente invención contribuye a solucionar y solventar la existente problemática. Therefore, there is still a need for an adjustable cylinder head that ensures the fixation of the distance and the rotation of the telescopic tube in a perennial way. The present invention contributes to solve and solve the existing problem.
EXPLICACIÓN DE LA INVENCIÓN EXPLANATION OF THE INVENTION
La presente invención se ha desarrollado con el fin de proporcionar una culata regulable para armas de fuego que se configura como una novedad dentro del campo de aplicación y que resuelve las contrariedades anteriormente mencionadas. The present invention has been developed in order to provide an adjustable stock for firearms that is configured as a novelty within the scope and resolves the aforementioned setbacks.
La culata regulable objeto de esta invención es del tipo que comprende un cuerpo central, de geometría longitudinal, fijable por su extremo anterior a la empuñadura de un arma de fuego, el cual se encuentra dispuesto para sostener en su lado superior un lomo regulable en su posición, y en su lado posterior un culatín, el cual está vinculado al cuerpo central y es regulable en posición respecto a la empuñadura a través de una pieza reguladora de la altura, una pieza reguladora del desplazamiento lateral y una pieza reguladora del pitch, y a diferencia de las culatas regulables conocidas, mediante una pieza rotable, reguladora únicamente de la rotación longitudinal, y un tubo externamente roscado en su extremo anterior para el ajuste de la distancia. El cuerpo central comprende un hueco cilindrico, abierto en su extremo posterior, y en cuyo fondo hay situada una abertura, preferiblemente oblonga, a través de la cual se hace pasar un tornillo para fijar el cuerpo central a la empuñadura. The adjustable cylinder head object of this invention is of the type comprising a central body, of longitudinal geometry, fixable at its front end to the handle of a firearm, which is arranged to hold on its upper side an adjustable spine in its position, and on its rear side a culatín, which is linked to the central body and is adjustable in position with respect to the handle through a height regulating part, a lateral displacement regulating part and a pitch regulating part, already Unlike the known adjustable cylinder heads, by means of a rotatable part, regulating only the longitudinal rotation, and an externally threaded tube at its front end for adjusting the distance. The central body comprises a cylindrical hollow, open at its rear end, and at the bottom of which there is an opening, preferably oblong, through which a screw is passed to fix the central body to the handle.
El interior del cuerpo central comprende un segundo tubo, con una holgura mínima respecto a dicho hueco, y cuyo extremo anterior se encuentra contiguo al fondo del cuerpo central. Este extremo del segundo tubo comprende a su vez un fondo con una abertura que coincide al menos en parte con la abertura del cuerpo central, de forma que el tornillo también fija este segundo tubo a la empuñadura. The interior of the central body comprises a second tube, with a minimum clearance with respect to said hollow, and whose front end is adjacent to the bottom of the central body. This end of the second tube in turn comprises a bottom with an opening that coincides at least in part with the opening of the central body, so that the screw also fixes this second tube to the handle.
En el extremo posterior, este segundo tubo comprende al menos una porción internamente roscada, de forma que permite el enroscado de la rosca externa del primer tubo. Ya que en extremo posterior del primer tubo se encuentra soportado el culatín, la distancia entre culatín y empuñadura queda regulada mediante el ajuste del enroscado. En su condición de uso, dichas porciones roscadas quedan preferiblemente situadas en el interior del cuerpo central. At the rear end, this second tube comprises at least one internally threaded portion, so that it allows the external thread of the first tube to be screwed. Since the cylinder head is supported at the rear end of the first tube, the distance between the cylinder head and the handle is regulated by adjusting the screwing. In their condition of use, said threaded portions are preferably located inside the central body.
En una realización alternativa se puede prescindir del tubo internamente roscado si el cuerpo central contiene dicha rosca interna, pero la complejidad de fabricación de la pieza central resulta más elevada. In an alternative embodiment, the internally threaded tube can be dispensed with if the central body contains said internal thread, but the manufacturing complexity of the central part is higher.
La culata regulable puede comprender dos configuraciones alternativas, pero no excluyentes, para evitar la rotación del primer tubo y que se desplace respecto al cuerpo central. The adjustable cylinder head can comprise two alternative configurations, but not exclusive, to prevent the rotation of the first tube and that it travels with respect to the central body.
En una primera configuración, el cuerpo central posee en su lado inferior una abertura longitudinal, la anchura de la cual puede variar mediante el apriete de al menos un tornillo transversal, ejerciendo así presión sobre el primer tubo y fijando su posición. Preferiblemente, los correspondientes orificios transversales, habilitados en cada lado de la abertura para el apriete de este al menos un tornillo, comprenden helicolis, evitando así los problemas de pasado de rosca y mejorando la durabilidad del atornillado. In a first configuration, the central body has a longitudinal opening on its lower side, the width of which can be varied by tightening at least one transverse screw, thus exerting pressure on the first tube and fixing its position. Preferably, the corresponding transverse holes, enabled on each side of the opening for tightening this at least one screw, comprise helicolis, thus avoiding the problems of thread past and improving the durability of the screwed.
En una segunda configuración no excluyente a la anterior, tanto el cuerpo central, como el primer y segundo tubos comprenden al menos una abertura en su zona superior por donde se encuentra introducido al menos un espárrago contenido en el lomo. Este espárrago actúa de pestillo del primer tubo, imposibilitando tanto el desplazamiento como la rotación de este. En el caso del primer tubo, su abertura superior es longitudinalmente oblonga, para permitirle las distintas posiciones de roscado. El al menos un espárrago se puede fijar al cuerpo central mediante el apriete de un tornillo transversal. Gracias a esta configuración, la posición relativa entre el culatín y la empuñadura no varía lo más mínimo debido al retroceso en cada disparo. In a second configuration not exclusive to the previous one, both the central body and the first and second tubes comprise at least one opening in its upper area where at least one stud contained in the spine is inserted. This stud acts as a latch for the first tube, making it impossible to move and rotate it. In the case of the first tube, its upper opening is longitudinally oblong, to allow the different threading positions. The at least one stud can be fixed to the central body by tightening a cross screw. Thanks to this configuration, the relative position between the cylinder head and the handle does not vary in the least due to the recoil in each shot.
Para el ajuste del ángulo de rotación longitudinal del culatín de forma independiente al ajuste de su distancia, una pieza rotable se encuentra situada en el extremo posterior del primer tubo. Esta pieza rotable comprende por un lado una proyección cilindrica que queda introducida en el interior del primer tubo y en el otro lado un tronco para el soporte y regulación de la pieza reguladora del pitch. Para la regulación y fijación entre el primer tubo y la pieza rotable, ambos comprenden unos medios que permiten la rotación longitudinal pero no el desplazamiento longitudinal entre ellos. En una realización preferente, la proyección cilindrica comprende un orificio roscado, preferentemente con helicolis, y el tubo comprende una abertura oblonga, coincidiendo el orificio y la abertura en posición longitudinal, de forma que un tornillo atraviesa la abertura oblonga y queda roscado a dicho orificio. La abertura oblonga permite el desplazamiento circular del tornillo por su interior, regulándose así la rotación entre la pieza y el tubo. Una vez regulada, su posición se fija mediante el apriete del tornillo. For the adjustment of the angle of longitudinal rotation of the cylinder head independently of the adjustment of its distance, a rotatable part is located at the rear end of the first tube. This rotatable piece comprises on the one hand a cylindrical projection that is inserted inside the first tube and on the other side a trunk for the support and regulation of the pitch regulating piece. For the regulation and fixation between the first tube and the rotatable part, both comprise means that allow longitudinal rotation but not longitudinal displacement between them. In a preferred embodiment, the cylindrical projection comprises a threaded hole, preferably with helicolis, and the tube comprises an oblong opening, the hole and the opening coinciding in a longitudinal position, such that a screw passes through the oblong opening and is threaded to said hole . The oblong opening allows the circular displacement of the screw inside, thus regulating the rotation between the piece and the tube. Once regulated, its position is fixed by tightening the screw.
En una realización preferente de la pieza central, su fondo contiene un saliente proyectado hacia el exterior, el cual encaja en una cavidad comprendida en la parte posterior de la empuñadura. De esta forma se evitan posibles inclinaciones de la culata respecto a la empuñadura. In a preferred embodiment of the centerpiece, its bottom contains a projection projected outwards, which fits into a cavity comprised in the back of the handle. In this way, possible inclinations of the cylinder head with respect to the handle are avoided.
En conclusión, gracias a la culata regulable de la presente invención, se permite regular la posición relativa entre el culatín y la empuñadura y mantenerla de forma perenne, sin que le afecte el movimiento de retroceso de los disparos, a la vez que permite la regulación de la rotación longitudinal del culatín independientemente de la regulación de su distancia respecto a la empuñadura. In conclusion, thanks to the adjustable cylinder head of the present invention, it is possible to regulate the relative position between the cylinder head and the handle and keep it perennial, without affecting the recoil movement of the shots, while allowing the regulation of the longitudinal rotation of the culatín independently of the regulation of his distance with respect to the handle.
Estas y otras características y ventajas de la culata regulable objeto de la presente invención resultarán evidentes a partir de la descripción de una realización preferida, pero no exclusiva, que se ilustra a modo de ejemplo no limitativo en los dibujos que se acompañan. These and other features and advantages of the adjustable cylinder head object of the present invention will be apparent from the description of a preferred but not exclusive embodiment, which is illustrated by way of non-limiting example in the accompanying drawings.
DESCRIPCIÓN DE LOS DIBUJOS DESCRIPTION OF THE DRAWINGS
Figura 1 .- Es una vista en perspectiva de un explosionado de la realización preferente de la 20 culata regulable de la presente invención. Figure 1 .- It is a perspective view of an explosion of the preferred embodiment of the adjustable cylinder head of the present invention.
Figura 2.- Es una vista de la planta inferior de la realización preferente del cuerpo central. Figure 2.- It is a view of the lower floor of the preferred embodiment of the central body.
REALIZACIÓN PREFERENTE DE LA INVENCIÓN PREFERRED EMBODIMENT OF THE INVENTION
A la vista de las mencionadas figuras y, de acuerdo con la numeración adoptada, se puede observar en ellas un ejemplo de realización preferente de la invención, la cual comprende las partes y elementos que se indican y describen en detalle a continuación. In view of the aforementioned figures and, according to the numbering adopted, an example of a preferred embodiment of the invention can be observed therein, which comprises the parts and elements indicated and described in detail below.
Tal y como se muestra en la Fig. 1 y la Fig. 2, la realización preferente de la presente culata regulable comprende un cuerpo central (1 ), de geometría longitudinal, fijable por su extremo anterior a la empuñadura (no mostrada) de un arma de fuego. As shown in Fig. 1 and Fig. 2, the preferred embodiment of the present adjustable cylinder head comprises a central body (1), of geometry longitudinal, fixable at its end before the handle (not shown) of a firearm.
El cuerpo central (1 ) está dispuesto para sostener en su lado superior un lomo (2) regulable en posición, y en su lado posterior un culatín acolchado (3), regulable en posición respecto a la empuñadura a través de una pieza reguladora de la altura (4), una pieza reguladora del desplazamiento lateral (5) a la que se vincula la pieza anterior, una pieza reguladora del pitch (6) a la que se vincula la pieza anterior, una pieza rotable longitudinalmente (7) a la que se vincula la pieza anterior, y un tubo externamente roscado (8) al que se vincula la pieza anterior. The central body (1) is arranged to hold on its upper side a spine (2) adjustable in position, and on its rear side a padded stock (3), adjustable in position with respect to the handle through a regulating part of the height (4), a regulating piece of the lateral displacement (5) to which the previous piece is linked, a pitch regulating piece (6) to which the previous piece is linked, a longitudinally rotatable piece (7) to which the previous part is linked, and an externally threaded tube (8) to which the previous part is linked.
El cuerpo central (1 ) comprende un hueco cilindrico (1 1 ) abierto en su extremo posterior y en cuyo fondo (12) hay situada una abertura oblonga (13), a través de la cual se hace pasar un tornillo (no mostrado) para fijar el cuerpo central (1 ) a la empuñadura. The central body (1) comprises a cylindrical recess (1 1) open at its rear end and at whose bottom (12) an oblong opening (13) is located, through which a screw (not shown) is passed to fix the central body (1) to the handle.
El interior del cuerpo central (1 ) comprende un tubo internamente roscado (9), con una holgura mínima respecto a dicho hueco (1 1 ), y cuyo extremo anterior se encuentra contiguo al fondo (12) del cuerpo central (1 ). Este extremo del segundo tubo (9) comprende a su vez un fondo (91 ) con una abertura (92) que coincide al menos en parte con la abertura oblonga (13) del cuerpo central (1 ), de forma que el tornillo también fija este segundo tubo (9) a la empuñadura. The interior of the central body (1) comprises an internally threaded tube (9), with a minimum clearance with respect to said recess (1 1), and whose front end is adjacent to the bottom (12) of the central body (1). This end of the second tube (9) in turn comprises a bottom (91) with an opening (92) that coincides at least in part with the oblong opening (13) of the central body (1), so that the screw also fixes this second tube (9) to the handle.
En su otro extremo, este segundo tubo (9) comprende una porción internamente roscada (no visible en la figura), de forma que permite el enroscado del primer tubo (8) que comprende a su vez una porción externamente roscada (81 ). En su condición de uso, dichas pociones roscadas (81 , 91 ) quedan situadas en el interior del cuerpo central (1 ). At its other end, this second tube (9) comprises an internally threaded portion (not visible in the figure), so that it allows the first tube (8) to be screwed, which in turn comprises an externally threaded portion (81). In their condition of use, said threaded potions (81, 91) are located inside the central body (1).
El cuerpo central (1 ) posee en su lado inferior una abertura longitudinal (14), la anchura de la cual puede variar mediante el apriete de un tornillo transversal (no mostrado) a través de correspondientes orificios transversales (15). A su vez, tanto el cuerpo central (1 ), como el primer y segundo tubos (8, 9) comprenden unas aberturas (17, 82, 93) en su zona superior, por donde se encuentran introducidos dos espárragos (21 ) contenidos en el lomo (2). Estos espárragos (21 ) actúan de pestillo de los tubos (8,9), imposibilitando la rotación de estos. En el caso del primer tubo (8), su abertura superior (82) es longitudinalmente oblonga, para permitirle las distintas posiciones de roscado. Los espárragos (21 ) se pueden fijar al cuerpo central (1 ) mediante el apriete de tornillos transversales (no mostrados) situados en la zona superior del cuerpo central (1 ). Los correspondientes orificios transversales superiores (18) preferiblemente comprenden helicolis. The central body (1) has on its lower side a longitudinal opening (14), the width of which can be varied by tightening a transverse screw (not shown) through corresponding transverse holes (15). In turn, both the central body (1), and the first and second tubes (8, 9) comprise openings (17, 82, 93) in its upper area, where two studs (21) contained in the loin (2). These studs (21) act as a bolt for the tubes (8,9), making their rotation impossible. In the case of the first tube (8), its upper opening (82) is longitudinally oblong, to allow the different threading positions. The studs (21) can be fixed to the central body (1) by tightening transverse screws (not shown) located in the upper area of the central body (1). The corresponding upper transverse holes (18) preferably comprise helicolis.
Para el ajuste del ángulo de rotación longitudinal del culatín (3) de forma independiente al ajuste de su distancia, una pieza rotable (7) se encuentra situada en el extremo posterior del primer tubo (8). Esta pieza rotable (7) comprende por un lado una proyección cilindrica (71 ) que queda introducida en el interior del primer tubo (8) y en el otro lado un tronco (72) para el soporte y regulación de la pieza reguladora del pitch (6). Para la regulación y fijación entre el primer tubo (8) y la pieza rotable (7), esta comprende en la proyección cilindrica (71 ) un orificio roscado (73), preferentemente con helicolis, y el tubo (8) comprende una abertura perimetralmente oblonga (83), coincidiendo dicho orificio (73) y dicha abertura (83) en posición longitudinal, de forma que un tornillo (no mostrado) atraviesa la abertura perimetralmente oblonga (83) y queda roscado a dicho orificio (73). Esta abertura perimetralmente oblonga (83) permite el desplazamiento perimetral del tornillo por su interior, regulándose así la rotación entre la pieza (7) y el tubo (8). Una vez regulada, su posición se fija mediante el apriete del tornillo. To adjust the angle of longitudinal rotation of the cylinder head (3) independently of the adjustment of its distance, a rotatable part (7) is located at the rear end of the first tube (8). This rotatable part (7) comprises on the one hand a cylindrical projection (71) that is inserted inside the first tube (8) and on the other side a trunk (72) for the support and regulation of the pitch regulating part ( 6). For the regulation and fixing between the first tube (8) and the rotatable part (7), this comprises in the cylindrical projection (71) a threaded hole (73), preferably with helicolis, and the tube (8) comprises an opening perimetrically oblong (83), said hole (73) and said opening (83) coinciding in longitudinal position, so that a screw (not shown) crosses the perimeter oblong opening (83) and is threaded to said hole (73). This perimeter oblong opening (83) allows the perimeter displacement of the screw inside, thus regulating the rotation between the piece (7) and the tube (8). Once regulated, its position is fixed by tightening the screw.
En esta realización preferente de la pieza central (1 ), su fondo contiene un saliente anular (19) proyectado hacia el exterior, el cual encaja en una cavidad comprendida en la parte posterior de la empuñadura. De esta forma se evitan posibles inclinaciones de la culata regulable respecto a la empuñadura. Los detalles, las formas, las dimensiones y demás elementos accesorios, así como los materiales empleados en la fabricación de la culata regulable de la invención, podrán ser convenientemente sustituidos por otros que sean técnicamente equivalentes y no se aparten de la esencialidad de la invención ni del ámbito definido por las reivindicaciones que se incluyen a continuación. In this preferred embodiment of the central part (1), its bottom contains an annular projection (19) projected outwards, which fits into a cavity comprised in the rear part of the handle. In this way, possible inclinations of the adjustable stock with respect to the handle are avoided. The details, shapes, dimensions and other accessory elements, as well as the materials used in the manufacture of the adjustable cylinder head of the invention, may be conveniently replaced by others that are technically equivalent and do not depart from the essentiality of the invention or of the scope defined by the claims included below.

Claims

Figure imgf000011_0001
Figure imgf000011_0001
1 Culata regulable para armas de fuego, del tipo que comprende un cuerpo central (1 ), de geometría longitudinal, con un hueco cilindrico (1 1 ) abierto en su extremo posterior, en cuyo fondo (12) hay situada una abertura (13) a través de la cual se hace pasar un tornillo para fijar el cuerpo central (1 ) a la empuñadura del arma de fuego, estando el cuerpo central (1 ) dispuesto para sostener en su lado superior un lomo (2), regulable en su posición, y en su lado posterior un culatín acolchado (3), el cual está vinculado a una pieza reguladora de la altura (4), ésta a una pieza reguladora del desplazamiento lateral (5) y ésta a una pieza reguladora del pitch (6), caracterizado porque comprende: 1 Adjustable stock for firearms, of the type comprising a central body (1), of longitudinal geometry, with a cylindrical recess (1 1) open at its rear end, at whose bottom (12) an opening (13) is located through which a screw is passed to fix the central body (1) to the handle of the firearm, the central body (1) being arranged to hold on its upper side a spine (2), adjustable in its position , and on its back side a padded stock (3), which is linked to a height adjusting part (4), this one to a lateral displacement regulating part (5) and this one to a pitch regulating part (6) , characterized in that it comprises:
- un primer tubo (8), externamente roscado en una porción de su extremo anterior, - a first tube (8), externally threaded in a portion of its front end,
- un segundo tubo (9), internamente roscado en una porción de su extremo posterior y dispuesto para que el primer tubo (8) se enrosque, estando su extremo anterior alojado en el fondo del cuerpo central (1 ), comprendiendo el extremo anterior un fondo (91 ) con una abertura (92) dispuesta para coincidir al menos en parte con la abertura (13) del cuerpo central (1 ), de forma que el mencionado tornillo también fija este segundo tubo (9) a la empuñadura, - a second tube (9), internally threaded in a portion of its rear end and arranged so that the first tube (8) is screwed, its front end being housed at the bottom of the central body (1), the front end comprising a bottom (91) with an opening (92) arranged to coincide at least in part with the opening (13) of the central body (1), so that said screw also fixes this second tube (9) to the handle,
- unos medios de fijación de la posición del primer tubo (8) respecto al cuerpo central (1 ), y - means for fixing the position of the first tube (8) with respect to the central body (1), and
- una pieza rotable (7), que comprende en el lado posterior un tronco (72) para el soporte y regulación de la pieza reguladora del pitch (6), y en su lado anterior una proyección cilindrica (71 ) que queda introducida en el extremo posterior del primer tubo (8) y vinculada a éste con unos medios que permiten la rotación longitudinal pero no el desplazamiento longitudinal entre ellos. - a rotatable part (7), comprising on the rear side a trunk (72) for the support and regulation of the pitch regulating part (6), and on its front side a cylindrical projection (71) that is inserted into the rear end of the first tube (8) and linked to it with means that allow longitudinal rotation but not longitudinal displacement between them.
2.- Culata regulable según la reivindicación 1 , caracterizado porque los medios de fijación de la posición del primer tubo (8) respecto al cuerpo central (1 ) están formados al menos por una abertura longitudinal (14) en el cuerpo central (1 ), la anchura de la cual puede variar mediante el apriete de al menos un tornillo transversal. 2. Adjustable stock according to claim 1, characterized in that the means for fixing the position of the first tube (8) with respect to the central body (1) are formed at least by a longitudinal opening (14) in the central body (1) , the width of which can vary by tightening at least one transverse screw.
3.- Culata regulable según la reivindicación 2, caracterizado porque los correspondientes orificios transversales (15), habilitados en cada lado de la abertura longitudinal (14) para el apriete del al menos un tornillo transversal, comprenden helicolis. 3. Adjustable cylinder head according to claim 2, characterized in that the corresponding transverse holes (15), enabled on each side of the longitudinal opening (14) for tightening the at least one transverse screw, comprise helicolis.
4.- Culata regulable según cualquiera de las reivindicaciones anteriores, caracterizada porque tanto el cuerpo central (1 ), como el primer y segundo tubos (8, 9) comprenden al menos una abertura superior (17, 82, 93) por donde se encuentra introducido al menos un espárrago (21 ) contenido en el lomo (2), siendo longitudinalmente oblonga la abertura superior (82) del primer tubo (8). 4. Adjustable cylinder head according to any of the preceding claims, characterized in that both the central body (1) and the first and second tubes (8, 9) comprise at least one upper opening (17, 82, 93) where it is located introduced at least one stud (21) contained in the spine (2), the upper opening (82) of the first tube (8) being longitudinally oblong.
5.- Culata regulable según la reivindicación 4, caracterizado porque el al menos un espárrago (21 ) se fija al cuerpo central (1 ) mediante el apriete de un tornillo transversal. 5. Adjustable cylinder head according to claim 4, characterized in that the at least one stud (21) is fixed to the central body (1) by tightening a transverse screw.
6.- Culata regulable según la reivindicación 6, caracterizado porque el correspondiente orificio transversal superior (16) para el apriete del al menos un espárrago (21 ) comprende un helicolis. 6. Adjustable cylinder head according to claim 6, characterized in that the corresponding upper transverse hole (16) for tightening at least one stud (21) comprises a helicolis.
7.- Culata regulable según cualquiera de las reivindicaciones anteriores, caracterizada porque la pieza rotable (7) comprende en la proyección cilindrica (71 ) un orificio roscado (73) y el primer tubo (8) comprende una abertura perimetralmente oblonga (83), coincidiendo el orificio (73) y la abertura (83) en posición longitudinal, así como un tornillo que atraviesa la abertura (83) y queda roscado al orificio (73). 7. Adjustable cylinder head according to any of the preceding claims, characterized in that the rotatable part (7) comprises in the cylindrical projection (71) a threaded hole (73) and the first tube (8) comprises a perimeter oblong opening (83), the hole (73) and the opening (83) coinciding in longitudinal position, as well as a screw that passes through the opening (83) and is threaded to the hole (73).
8.- Culata regulable según la reivindicación 8, caracterizado porque el orificio roscado (73) comprende un helicolis. 8. Adjustable cylinder head according to claim 8, characterized in that the threaded hole (73) comprises a helicolis.
9.- Culata regulable según cualquiera de las reivindicaciones anteriores, caracterizada porque el fondo de la pieza central (1 ) contiene un saliente (19) proyectado hacia el exterior, el cual encaja en una cavidad comprendida en la parte posterior de la empuñadura. 9. Adjustable cylinder head according to any of the preceding claims, characterized in that the bottom of the central part (1) contains a projection (19) projected outwards, which fits into a cavity comprised in the rear part of the handle.
PCT/ES2019/070313 2018-05-10 2019-05-10 Adjustable butt for firearms WO2019215375A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4769937A (en) * 1987-09-25 1988-09-13 Gregory Glenn D Recoil reduction device including means for adjusting the stock length of shotguns
US5392553A (en) * 1994-01-11 1995-02-28 Carey; Donald C. Gun stock assembly with universally adjustable comb piece
US8720099B1 (en) * 2013-05-07 2014-05-13 Charles H. Sisk Multi-axis adjustable buttstock
US9417032B1 (en) * 2015-09-10 2016-08-16 Grip Plus, Inc Firearm stock and recoil system
ES2582980A1 (en) * 2016-03-07 2016-09-16 Jose Manuel DÍAZ AJA Adjustable cylinder head support in the shoulder for firearms (Machine-translation by Google Translate, not legally binding)

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4769937A (en) * 1987-09-25 1988-09-13 Gregory Glenn D Recoil reduction device including means for adjusting the stock length of shotguns
US5392553A (en) * 1994-01-11 1995-02-28 Carey; Donald C. Gun stock assembly with universally adjustable comb piece
US8720099B1 (en) * 2013-05-07 2014-05-13 Charles H. Sisk Multi-axis adjustable buttstock
US9417032B1 (en) * 2015-09-10 2016-08-16 Grip Plus, Inc Firearm stock and recoil system
ES2582980A1 (en) * 2016-03-07 2016-09-16 Jose Manuel DÍAZ AJA Adjustable cylinder head support in the shoulder for firearms (Machine-translation by Google Translate, not legally binding)

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ES1220209Y (en) 2019-02-08

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