WO1994029666A1 - Two-part cartridge wad with pneumatic damping - Google Patents

Two-part cartridge wad with pneumatic damping Download PDF

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Publication number
WO1994029666A1
WO1994029666A1 PCT/ES1994/000053 ES9400053W WO9429666A1 WO 1994029666 A1 WO1994029666 A1 WO 1994029666A1 ES 9400053 W ES9400053 W ES 9400053W WO 9429666 A1 WO9429666 A1 WO 9429666A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
walls
shock absorber
barrel
damper
Prior art date
Application number
PCT/ES1994/000053
Other languages
Spanish (es)
French (fr)
Inventor
Pedro Diaz Prieto
Original Assignee
Pedro Diaz Prieto
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 Pedro Diaz Prieto filed Critical Pedro Diaz Prieto
Priority to JP7501357A priority Critical patent/JPH07509775A/en
Priority to EP94916989A priority patent/EP0671598A1/en
Priority to AU68451/94A priority patent/AU6845194A/en
Publication of WO1994029666A1 publication Critical patent/WO1994029666A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B7/00—Shotgun ammunition
    • F42B7/02—Cartridges, i.e. cases with propellant charge and missile
    • F42B7/08—Wads, i.e. projectile or shot carrying devices, therefor

Definitions

  • the purpose of the present invention patent application is to have a two-piece cartridge cushion with pneumatic cushioning, which has notable advantages and innovations compared to the current cues used in the cartridge industry.
  • the studs are usually made of a single piece of deformable material, responding to the need to protect the walls of the barrel of the weapon, plummet or copper produced by the successive shots, as well as the improvement of the lead and the total sealing of the gases produced by the combustion of gunpowder.
  • Each lead charge needs a block of specific dimensions, that is to say that different plugs are needed for different lead charges, as well as for different cartridge sheath lengths, even though the load is the same.
  • the two-piece cartridge block with pneumatic design, object of the present invention consists of two interchangeable parts that are assembled, the container and the damper-seal.
  • the container incorporates a series of flippers, as well as a regulating valve of the damping and air injector, presenting both said container and the damper, transverse partitions convex-concave, capable of absorbing radial deformations with respect to the axis of symmetry of the block.
  • the shock absorber is of fourfold action, because it supports the flexion and deformation of the material, the friction against the walls and the compression of the contained air.
  • the main advantages of the taco for cartridge that is proposed compared to conventional tacos, are the following:
  • Figure 1. Shows a sectioned elevational view of an assembly of a practical embodiment of the invention.
  • Figure 2. It shows different dihedral views in plan and sectioned elevation of the container.
  • Figure 3. Shows respective dihedral views in plan and sectioned elevation of the damper-shutter.
  • FIGS 4, 5 and 6.- They show homologous views to the previous figures 1, 2 and 3 according to another alternative embodiment of the invention.
  • the container (1) is characterized by adopting an external cylindrical appearance, protruding from its base fins (7) attached thereto by the lower part, while in turn, its walls (3) have holes that serve as accommodation for said fins (7).
  • the container (1) has its smooth internal walls with a conical shape open towards the outside. Its bottom or base (4) has a convex truncated conical shape, ending in a circular ring that is the base itself of the container, where, in turn, the interior walls end.
  • the container In its lower area, the container has in its outermost part an annular groove that will serve to assemble the damper-seal (8), while in the center it has a concave, conical shape.
  • a valve (2) formed by two non-through holes that coincide in a thin membrane (5) of the same material as the base is located in the center of the base or transverse partition that is the bottom (4) thereof. of the container
  • the upper orifice of this valve can be cylindrical or prismatic and the lower one truncated or similar, and its dimensions can be as well as the thickness of the membrane, variable, depending on the needs.
  • the sealing damper (8) has an external appearance in the form of a vessel with a chamber (6) delimited by walls (9) in the form of bellows or originated by a sinusoidal curve of revolution, with the infle ⁇ tions smoothly rounded.
  • This wall (9) rests on a transversal partition (12) that forms the closure or base of the bellows which is convex in its lower part constituted by two truncated conical figures (11) and (13).
  • the same partition (12) in its lower part has a concave shape constituted by the two joined conical figures (11) and (13).
  • the present invention has tried to improve all the above drawbacks of the current studs. For this, it has been split from a block of two components, they will be manufactured by injection or blowing in plastic or deformable or semi-deformable material.
  • the lateral fins When the taco is inserted into the sheath, the lateral fins will be folded into their housing and thus remain until the exit of the block through the mouth of the barrel of the weapon in which they will be deployed to fulfill their mission of stabilization and braking.
  • the shock absorber will have flexed and the air contained inside will be slightly compressed (this compression will be predetermined depending on the length that has been given to the bellows of the shock absorber). In this position, the block receives the lead charge on its top, leaving the cartridge ready for use or firing.
  • the shock absorber when the shot occurs, the shock absorber will work by bending the material of its walls (bellows) together with the friction that occurs against the walls of the container or the barrel of the weapon.
  • the bellows of the shock absorber When the bellows of the shock absorber is completely folded, the convex cone of the base of the shock absorber will push the folded walls against the concave cone of the container partition causing them to deform until they adapt to the shape of the two cones.
  • the air contained and compressed in the chamber (6) will have reached sufficient pressure to open the valve (2) by letting out a stream of compressed air that will drive the lead charge recovering part of the energy used in the damping , in useful pulse for shooting.
  • this valve is calculated in such a way that it opens upon receiving the extra overpressure of the barrel throttling, not only part of the energy accumulated in the damping will be used to boost the lead load, but also the passage of the block will be facilitated. through the narrowing of the barrel by decreasing its internal resistance to compression. Since the transverse partition wall of the container and the closing partition of the damper are convex-concave, they allow radial contractions to be absorbed with respect to the axis of symmetry of the block, making the passage of the block with the load through the throttle, be smooth and uniform.
  • valve (2) can act instantaneously or progressively according to the needs, simply by varying the opening pressure of the valve or the section of the air outlet orifice. By combining this, it can be achieved that the air escapes almost instantaneously or somewhat slower, whereby, the advantage of having the desired final damping will be achieved.
  • the fins tend to unfold. This deployment will be facilitated in turn by the air that hits them at very high speed. Once deployed, they not only slow down the block but also stabilize it in its trajectory, making the taco-load separation of lead, as well as fast, smooth and little distorted in the trajectory of the load.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Buffer Packaging (AREA)
  • Nozzles (AREA)
  • Packaging For Recording Disks (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Air-Flow Control Members (AREA)

Abstract

Two-part cartridge wad with pneumatic damping intended to the cartridge manufacturing industry, the wad being comprised of two interchangeable parts which are assembled and which correspond to a container (1) and to a damper-seal (8). The container (1) comprises a series of hinged wings (7), as well as a valve (2) for the regulation of the damping and the air injection. Both the container (1) and the damper (8) have side walls (3 and 9) of convexo-concave shape, which are intended to absorb radial deformations with respect to the symmetry axis of the wad. The damper (8) has a quadruple function: it withstands the flexion and deformation of the material, the friction against the walls and the compression of air contained.

Description

TACO PARA CARTUCHO EN DOS PIEZAS CON AMORTIGUACIÓN TACO FOR CARTRIDGE IN TWO PIECES WITH DAMPING
NEUMÁTICAPNEUMATICS
OBJETO DE LA INVENCIÓNOBJECT OF THE INVENTION
La presente solicitud de Patente de Invención tiene por objeto un taco para cartucho en dos piezas con amortiguación neumática, que presenta notables ventajas e innovaciones frente a los actuales tacos utilizados en la industria de cartuchería.The purpose of the present invention patent application is to have a two-piece cartridge cushion with pneumatic cushioning, which has notable advantages and innovations compared to the current cues used in the cartridge industry.
ANTECEDENTES DE LA INVENCIÓNBACKGROUND OF THE INVENTION
En la actualidad y como referencia al estado de la técnica, debe mencionarse que en la industria de la cartuchería los tacos se fabrican usualmente de una sola pieza de material deformable, respondiendo a la necesidad de proteger las paredes del cañón del arma, del plomeado o cobreado producido por los sucesivos disparos, así como la mejora del plomeo y la obturación total de los gases producidos por la combustión de la pólvora.At present, and as a reference to the state of the art, it should be mentioned that in the cartridge industry the studs are usually made of a single piece of deformable material, responding to the need to protect the walls of the barrel of the weapon, plummet or copper produced by the successive shots, as well as the improvement of the lead and the total sealing of the gases produced by the combustion of gunpowder.
Sin embargo, la utilización de los actuales tacos presenta una serie de inconvenientes, entre los cuales cabe destacar :However, the use of current tacos has a number of drawbacks, among which are:
- Falta de uniformidad en el plomeo, entre diferentes disparos producidos con un mismo cartucho y taco, y en una misma arma.- Lack of uniformity in the lead, between different shots produced with the same cartridge and block, and in the same weapon.
- Amortiguan por flexión y deformación del material que los forma, no recuperándose esta energía.- Cushion by bending and deformation of the material that forms them, not recovering this energy.
- Sufren deformaciones bruscas al llegar al estrangulamiento del cañón, incrustándose los perdigones en el material.- They suffer sudden deformations when they reach the strangulation of the barrel, embedding the pellets in the material.
- La energía que consumen estas deformaciones es elevada, así como el rozamiento contra las paredes del cañón.- The energy consumed by these deformations is high, as is the friction against the canyon walls.
- Cada carga de plomo necesita un taco de dimensiones específicas, es decir que para diferentes cargas de plomo se necesitan diferentes tacos, así como para diferentes longitudes de vaina del cartucho, aún siendo la carga igual.- Each lead charge needs a block of specific dimensions, that is to say that different plugs are needed for different lead charges, as well as for different cartridge sheath lengths, even though the load is the same.
- El excesivo alcance del taco en el disparo, induciendo a errores de apreciación en el tirador y otros.- The excessive range of the cue in the shot, leading to errors of appreciation in the shooter and others.
DESCRIPCIÓN DE LA INVENCIÓNDESCRIPTION OF THE INVENTION
El taco para cartucho en dos piezas con a orti- guación neumática, objeto de la presente invención, consiste en dos piezas intercambiables que se ensamblan, el contenedor y el amortiguador-obturador.The two-piece cartridge block with pneumatic design, object of the present invention, consists of two interchangeable parts that are assembled, the container and the damper-seal.
El contenedor incorpora una serie de aletas abatibles, así como una válvula reguladora de la amorti¬ guación e inyectora de aire, presentando tanto dicho contenedor como el amortiguador, unos tabiques transver¬ sales de forma convexo-cóncava, capaces de absorber deformaciones radiales respecto al eje de simetría del taco.The container incorporates a series of flippers, as well as a regulating valve of the damping and air injector, presenting both said container and the damper, transverse partitions convex-concave, capable of absorbing radial deformations with respect to the axis of symmetry of the block.
El amortiguador es de cuádruple acción, pues soporta la flexión y deformación del material, el roza¬ miento contra las paredes y la compresión del aire contenido. Las principales ventajas del taco para cartucho que se propone frente a los tacos convencionales, son las siguientes :The shock absorber is of fourfold action, because it supports the flexion and deformation of the material, the friction against the walls and the compression of the contained air. The main advantages of the taco for cartridge that is proposed compared to conventional tacos, are the following:
- Mejora del plomeo.- Lead improvement.
- Necesita menos energía para un mismo impulso de carga.- You need less energy for the same load impulse.
- Para un mismo taco; posibilidad de adaptarse a vainas de cartucho de diferentes longitudes y de recibir distintas cargas de plomo en un mismo cartucho.- For the same taco; possibility of adapting to cartridge cases of different lengths and receiving different loads of lead in the same cartridge.
- Posibilidad de intercambiarse contenedores y amortiguadores de diferentes prestaciones entre sí.- Possibility of exchanging containers and dampers of different benefits with each other.
- Flexibilidad de adaptación a los estrecha¬ mientos del cañón y a diferentes diámetros de ánima para un mismo calibre.- Flexibility to adapt to the narrows of the barrel and to different bore diameters for the same caliber.
- Perfecta obturación de los gases con el mínimo rozamiento.- Perfect gas seals with minimal friction.
- Menor incrustación de los perdigones en el material del taco, haciendo más fácil la separación taco- carga.- Less embedding of the pellets in the material of the block, making the taco-load separation easier.
- Menor alcance del taco.- Lower reach of the cue.
- Retroceso más suave.- Softer recoil.
- Sistema de amorgituación con recuperación de energía.- Amorgituación system with energy recovery.
Para complementar la descripción que seguida- mente se va a realizar y con objeto de ayudar a una mejor comprensión de sus característica, se acompaña a la presente memoria descriptiva de un juego de planos en cuyas figuras, de forma ilustrativa y no limitativa, se representan los detalles más significativos de la inven¬ ción.To complement the description that followed- The mind will be carried out and in order to help a better understanding of its characteristics, the present descriptive report of a set of drawings is attached, in whose figures, in an illustrative and non-limiting way, the most significant details of the invention are represented ¬ tion.
BREVE DESCRIPCIÓN DE LOS DISEÑOSBRIEF DESCRIPTION OF THE DESIGNS
Figura 1.- Muestra una vista en alzado seccio¬ nado de conjunto de una realización práctica de la invención.Figure 1.- Shows a sectioned elevational view of an assembly of a practical embodiment of the invention.
Figura 2.- Muestra sendas vistas diédricas en planta y alzado seccionado del contenedor.Figure 2.- It shows different dihedral views in plan and sectioned elevation of the container.
Figura 3.- Muestra respectivas vistas diédricas en planta y alzado seccionado del amortiguador-obturador.Figure 3.- Shows respective dihedral views in plan and sectioned elevation of the damper-shutter.
Figuras 4, 5 y 6.- Muestran vistas homologas a las anteriores figuras 1, 2 y 3 según otra alternativa de realización de la invención.Figures 4, 5 and 6.- They show homologous views to the previous figures 1, 2 and 3 according to another alternative embodiment of the invention.
DESCRIPCIÓN DE UNA REALIZACIÓN PREFERENTEDESCRIPTION OF A PREFERRED EMBODIMENT
A la vista de las comentadas figuras y de acuerdo con la numeración adoptada, se puede observar en su realización un taco para cartucho que se compone de dos piezas de fabricaciones independientes, el contenedor (1) y el amortiguador-obturador (8) . Estas dos piezas ensambladas forman el taco para cartuchos propiamente dicho.In view of the aforementioned figures and in accordance with the numbering adopted, it can be observed in its realization a cartridge block that is composed of two independent manufacturing parts, the container (1) and the damper-shutter (8). These two assembled parts form the taco for cartridges themselves.
El contenedor (1) se caracteriza por adoptar una apariencia externa cilindrica, sobresaliendo de su base unas aletas (7) unidas al mismo por la parte infe¬ rior, mientras que a su vez, sus paredes (3) presentan unos huecos que sirven de alojamiento a dichas aletas (7).The container (1) is characterized by adopting an external cylindrical appearance, protruding from its base fins (7) attached thereto by the lower part, while in turn, its walls (3) have holes that serve as accommodation for said fins (7).
Cuando se pliegan estas aletas (7) , éstas quedan alojadas en los citados huecos, presentando el contenedor una apariencia externa totalmente cilindrica.When these fins (7) are folded, they are housed in said holes, the container presenting a totally cylindrical external appearance.
El contenedor (1) presenta sus paredes internas lisas con forma troncocónica abierta hacia el exterior. Su fondo o base (4) presenta una forma troncocónica convexa, terminando en un anillo circular que es la base propiamente dicha del contenedor, donde a su vez, ter i- nan las paredes interiores.The container (1) has its smooth internal walls with a conical shape open towards the outside. Its bottom or base (4) has a convex truncated conical shape, ending in a circular ring that is the base itself of the container, where, in turn, the interior walls end.
En su zona inferior el contenedor presenta en su parte más exterior una hendidura anular que servirá para ensamblar en ella el amortiguador-obturador (8) , mientras que en el centro presenta forma troncocónica, cóncava. A su vez, en el centro de la base o tabique transversal que hace de fondo (4) del mismo, está situada una válvula (2) formada por dos orificios no pasantes que coinciden en una membrana fina (5) del mismo material que el del contenedor. El orificio superior de esta válvula puede ser cilindrico o prismático y el inferior troncocó- nico o similar, pudiendo ser sus dimensiones así como el espesor de la membrana, variables, en función de las necesidades.In its lower area, the container has in its outermost part an annular groove that will serve to assemble the damper-seal (8), while in the center it has a concave, conical shape. In turn, a valve (2) formed by two non-through holes that coincide in a thin membrane (5) of the same material as the base is located in the center of the base or transverse partition that is the bottom (4) thereof. of the container The upper orifice of this valve can be cylindrical or prismatic and the lower one truncated or similar, and its dimensions can be as well as the thickness of the membrane, variable, depending on the needs.
Así mismo, cabe señalar que la membrana puede ser sustituida por un tapón que pueda deslizarse en su asiento por efecto de la presión, siendo su forma de actuar equivalente a la membrana, o bien por un orificio que regule la salida del aire a conveniencia. El amortiguador obturador (8) presenta una apariencia externa en forma de vaso con una cámara (6) delimitada por paredes (9) en forma de fuelle u origina¬ das por una curva senoidal de revolución, con las infle¬ xiones suavemente redondeadas. Esta pared (9) apoya en un tabique transversal (12) que forma el cierre o base del fuelle el cual es por su parte inferior de forma convexa constituida por dos figuras troncocónicas unidas (11) y (13).Likewise, it should be noted that the membrane can be replaced by a plug that can slide in its seat due to the pressure, its way of acting being equivalent to the membrane, or by a hole that regulates the air outlet at convenience. The sealing damper (8) has an external appearance in the form of a vessel with a chamber (6) delimited by walls (9) in the form of bellows or originated by a sinusoidal curve of revolution, with the infle¬ tions smoothly rounded. This wall (9) rests on a transversal partition (12) that forms the closure or base of the bellows which is convex in its lower part constituted by two truncated conical figures (11) and (13).
El mismo tabique (12) en su parte inferior presenta forma cóncava constituida por las dos figuras troncocónicas unidas (11) y (13) .The same partition (12) in its lower part has a concave shape constituted by the two joined conical figures (11) and (13).
La parte superior o borde (10) del amortiguadorThe top or edge (10) of the shock absorber
(8) , lleva una hendidura anular, determinando que este reborde sea bilabiado para una mejor estanqueidad al apoyar en una superficie plana. A su vez, existe un resalte anular en su parte superior que encastrará en el alojamiento del contenedor (1) , impidiendo que una vez ensamblados amortiguador (8) y contenedor (1) , éstos se separen fácilmente.(8), has an annular groove, determining that this flange is bilabiado for a better seal when resting on a flat surface. In turn, there is an annular shoulder in its upper part that will fit into the housing of the container (1), preventing that once assembled shock absorber (8) and container (1), they are easily separated.
La presente invención ha tratado de mejorar todos los inconvenientes anteriores de los actuales tacos. Para ello, se ha partido de un taco de dos compo¬ nentes se fabricarán por inyección o soplado en plástico o material deformable o semideformable.The present invention has tried to improve all the above drawbacks of the current studs. For this, it has been split from a block of two components, they will be manufactured by injection or blowing in plastic or deformable or semi-deformable material.
Una vez ensamblados los dos componentes del taco, éste se encuentra en disposición de ser montado en el cartucho.Once the two components of the block are assembled, it is ready to be mounted on the cartridge.
Al introducir el taco en la vaina, se plegarán las aletas laterales en su alojamiento y así permanecerán hasta la salida del taco por la boca del cañón del arma en que se desplegarán para cumplir su misión de estabili¬ zación y frenado.When the taco is inserted into the sheath, the lateral fins will be folded into their housing and thus remain until the exit of the block through the mouth of the barrel of the weapon in which they will be deployed to fulfill their mission of stabilization and braking.
Una vez está el taco alojado en la vaina y asentado contra la carga de pólvora, en esta posición, el amortiguador se habrá flexionado y el aire contenido dentro estará ligeramente comprimido (esta compresión estará predeterminada en función de la longitud que se haya dado al fuelle del amortiguador) . En esta posición el taco recibe la carga de plomo en su parte superior, quedando el cartucho dispuesto para su uso o disparo.Once the block is housed in the sheath and seated against the powder load, in this position, the shock absorber will have flexed and the air contained inside will be slightly compressed (this compression will be predetermined depending on the length that has been given to the bellows of the shock absorber). In this position, the block receives the lead charge on its top, leaving the cartridge ready for use or firing.
Teniendo en cuenta lo anterior, al producirse el disparo, el amortiguador trabajará por flexión del material de sus paredes (fuelle) junto con el rozamiento que se produce contra las paredes del contenedor o del cañón del arma. Cuando el fuelle del amortiguador se halle completamente plegado, el cono convexo de la base del amortiguador empujará a las paredes plegadas contra el cono cóncavo del tabique del contenedor haciéndoles deformarse hasta adaptarse a la forma de los dos conos. En esto, el aire contenido y comprimido en la cámara (6) habrá alcanzado la presión suficiente para que se abra la válvula (2) dejando salir un chorro de aire comprimido que impulsará la carga de plomo recuperando parte de la energía empleada en la amortiguación, en impulso útil para el disparo. Si esta válvula está calculada de tal manera que se abra al recibir la sobrepresión extra del estrangulamiento del cañón, no sólo se utilizará parte de la energía acumulada en la amortiguación para impulsar la carga de plomo, sino que además se facilitará el paso del taco a través del estrechamiento del cañón al disminuir su resistencia interna a la compresión. Puesto que el tabique transversal del contene¬ dor y el tabique de cierre del amortiguador tienen forma convexo-cóncava, permiten absorber contracciones radiales respecto al eje de simetría del taco, haciendo que el paso del taco con la carga a través del estrangula iento, sea suave y uniforme.Taking into account the above, when the shot occurs, the shock absorber will work by bending the material of its walls (bellows) together with the friction that occurs against the walls of the container or the barrel of the weapon. When the bellows of the shock absorber is completely folded, the convex cone of the base of the shock absorber will push the folded walls against the concave cone of the container partition causing them to deform until they adapt to the shape of the two cones. In this, the air contained and compressed in the chamber (6) will have reached sufficient pressure to open the valve (2) by letting out a stream of compressed air that will drive the lead charge recovering part of the energy used in the damping , in useful pulse for shooting. If this valve is calculated in such a way that it opens upon receiving the extra overpressure of the barrel throttling, not only part of the energy accumulated in the damping will be used to boost the lead load, but also the passage of the block will be facilitated. through the narrowing of the barrel by decreasing its internal resistance to compression. Since the transverse partition wall of the container and the closing partition of the damper are convex-concave, they allow radial contractions to be absorbed with respect to the axis of symmetry of the block, making the passage of the block with the load through the throttle, be smooth and uniform.
Además, la válvula (2) podrá actuar de forma instantánea o progresiva de acuerdo a las necesidades, simplemente variando la presión de apertura de la válvula o la sección del orificio de salida del aire. Conjugando esto, puede conseguirse que el aire escape de forma casi instantánea o algo más lenta, con lo cual, se conseguirá la ventaja de tener la amortiguación final deseada.In addition, the valve (2) can act instantaneously or progressively according to the needs, simply by varying the opening pressure of the valve or the section of the air outlet orifice. By combining this, it can be achieved that the air escapes almost instantaneously or somewhat slower, whereby, the advantage of having the desired final damping will be achieved.
Cuando el taco sale por la boca del cañón del arma, las aletas tienden a desplegarse. Este despliegue estará facilitado a su vez por el aire que a altísima velocidad choca contra ellas. Una vez desplegadas, no sólo frenan el taco sino que además, lo estabilizan en su trayectoria, haciendo que la separación taco-carga de plomo, además de rápida sea suave y poco distorsionada de la trayectoria de la carga.When the cue comes out of the gun barrel, the fins tend to unfold. This deployment will be facilitated in turn by the air that hits them at very high speed. Once deployed, they not only slow down the block but also stabilize it in its trajectory, making the taco-load separation of lead, as well as fast, smooth and little distorted in the trajectory of the load.
Al separarse el taco rápidamente de la carga, por frenarse en el aire, caerá a escasa distancia del tirador, con lo que la confusión de éste respecto a si ha sido o no alcanzado el blanco, será prácticamente nula. When the block is quickly separated from the load, due to slowing in the air, it will fall a short distance from the shooter, so that its confusion regarding whether or not the target has been reached will be practically zero.

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
la.- Taco para cartucho en dos piezas con amortiguación neumática, destinado a cartuchos de armas de fuego y similares, caracterizado esencialmente por estar constituido por dos piezas intercambiables y ensamblables correspondientes a un contenedor (1) y a un amortiguador-obturador (8) , obtenidas por inyección o soplado en plástico u otro material deformable o semide- formable, de modo que el contenedor incorpora una serie de aletas periféricas (7) abatibles y susceptibles de desplegarse cuando el taco sale por la boca del cañón del arma que lo dispara, frenando el taco rápidamente y estabilizándolo en su trayectoria, consiguiendo que la separación del mismo con la carga de plomo sea rápida, suave y poco distorsionadora de la trayectoria de la carga.la.- Two-piece cartridge cushion with pneumatic damping, intended for firearms cartridges and the like, essentially characterized by being made up of two interchangeable and assembled parts corresponding to a container (1) and a cushion-shutter (8), obtained by injection or blowing in plastic or other deformable or semi-formable material, so that the container incorporates a series of folding peripheral fins (7) that can be deployed when the block comes out of the barrel of the firing gun, braking the block quickly and stabilizing it in its trajectory, making the separation of it with the lead charge fast, smooth and little distorting of the trajectory of the load.
2a.- Taco para cartucho en dos piezas con amortiguación neumática, según la reivindicación ante¬ rior, caracterizado por el contenedor (1) adopta una configuración cilindrica de la que sobresalen de su base las citadas aletas (7) las cuales se unen al mismo por su parte inferior, alojándose éstas en posición de plegado en unos rebajes practicados de forma coincidente en sus paredes (3) las cuales son lisas con forma troncocónica abierta hacia el exterior, presentando su fondo o base (4) una forma troncocónica convexa que termina en un anillo circular que es la base propiamente dicha del contenedor, el cual en su zona inferior presenta en su parte más exterior una hendidura anular apta para recibir o acoplar el amortiguador-obturador (8) , mientras que en el centro presenta una forma troncocónica cóncava, presentando el centro de la base (4) una válvula (2) formada por dos orificios no pasantes que coinciden en una membrana fina (5) del mismo material que el del contenedor, la cual puede ser sustituida por un tapón que pueda deslizarse en su asiento por efecto de la presión, o bien por un orificio que regule la salida del aire a conveniencia.2a.- Two-piece cartridge cushion with pneumatic cushioning, according to the preceding claim, characterized by the container (1) adopts a cylindrical configuration from which the aforementioned fins (7) protrude from its base, which are attached to it on the lower part, these being housed in a folded position in a recess made in a coincident manner in its walls (3) which are smooth with a frustoconical shape open towards the outside, presenting its bottom or base (4) a convex truncated conical shape that ends in a circular ring which is the base itself of the container, which in its lower part has in its outermost part an annular groove suitable for receiving or attaching the damper-seal (8), while in the center it has a truncated conical shape concave, the center of the base (4) presenting a valve (2) formed by two non-through holes that coincide in a thin membrane (5) of the same material as that of the container, which can be replaced by a plug that can slide in its seat due to the pressure, or by a hole that regulates the air outlet at convenience.
3a.- Taco para cartucho en dos piezas con amortiguación neumática, según las reivindicaciones 1 y3a.- Two-piece cartridge cushion with pneumatic damping, according to claims 1 and
2, caracterizado porque el amortiguador-obturador (8) adopta una configuración en forma de vaso con una cámara2, characterized in that the damper-shutter (8) adopts a vessel-shaped configuration with a camera
(6) delimitada por paredes (9) en forma de fuelle asenta¬ das en un tabique transversal (12) que constituye el cierre o base de la citada pared (9) y que está formado por dos cuerpos troncocónicos (11) y (13) , presentando la parte superior (10) del amortiguador (8) , una hendidura anular que determina un reborde bilabiado que garantiza la estanqueidad necesaria al apoyarse sobre una superfi¬ cie plana, habiéndose previsto así mismo un resalte anular en su parte superior que es apto para ser recibido en el citado alojamiento del contenedor (1) , impidiendo la separación entre amortiguador (8) y contenedor (1) , siendo dicho amortiguador (8) capaz de soportar la flexión y deformación del material, rozamiento contra las paredes y la compresión del aire contenido durante el disparo.(6) delimited by walls (9) in the form of bellows seated in a transverse partition (12) that constitutes the closure or base of said wall (9) and which is formed by two truncated conical bodies (11) and (13 ), presenting the upper part (10) of the shock absorber (8), an annular groove that determines a bilabied flange that guarantees the necessary sealing when resting on a flat surface, also having an annular projection in its upper part which is suitable for being received in said housing of the container (1), preventing the separation between shock absorber (8) and container (1), said shock absorber (8) being able to withstand the bending and deformation of the material, friction against the walls and the compression of the air contained during firing.
4a.- Taco para cartucho en dos piezas con amortiguación neumática, según las reivindicaciones 1 a4a.- Two-piece cartridge cushion with pneumatic damping, according to claims 1 to
3, caracterizado porque se ha previsto que al ser el taco alojado en la vaina y asentado contra la carga de pólvo¬ ra, origine una flexión del amortiguador (8) con la correspondiente compresión del aire contenido en el mismo, recibiendo el taco en esta posición la carga de plomo en su parte superior, quedando el cartucho dispues- to para su uso o disparo. δa.- Taco para cartucho en dos piezas con amortiguación neumática, según las reivindicaciones 1 a 4, caracterizado porque el amortiguador (8) tras produ¬ cirse el disparo actúa por flexión del material de sus paredes (9) junto con el rozamiento que se produce contra las paredes (3) del contenedor (1) ó del cañón del arma, de modo que cuando el fuelle de dichas paredes se halle completamente plegado, el cono convexo de la base del amortiguador empujará a las paredes plegadas contra el cono cóncavo del tabique del contenedor haciéndolas deformarse hasta adaptarse a la forma de los dos conos.3, characterized in that it is envisaged that since the plug is housed in the sheath and seated against the powder load, it causes a flexion of the shock absorber (8) with the corresponding compression of the air contained therein, receiving the plug in this position the lead charge on its top, the cartridge being ready for use or firing. δa.- Two-piece cartridge cushion with pneumatic damping, according to claims 1 to 4, characterized in that the shock absorber (8) after firing occurs acts by bending the material of its walls (9) together with the friction that is produces against the walls (3) of the container (1) or the barrel of the weapon, so that when the bellows of said walls are completely folded, the convex cone of the base of the shock absorber will push the folded walls against the concave cone of the container wall causing them to deform until they adapt to the shape of the two cones.
6a.- Taco para cartucho en dos piezas con amortiguación neumática, según las reivindicaciones 1 a 5, caracterizado porque se ha previsto que el aire comprimido contenido en la cámara (6) alcance la presión suficiente para abrir la válvula (2) dejando salir un chorro de aire comprimido que impulse la carga de plomo recuperando parte de la energía empleada en la amortigua- ción, en impulso útil para el disparo, estando o no dicha válvula (2) calculada de modo que se abra al recibir la sobrepresión extra del estrangulamiento del cañón, facilitando también el paso del taco a través del estre¬ chamiento del cañón por disminución de su resistencia interna a la compresión, pudiendo ser dicha válvula variable en sus dimensiones.6a.- Two-piece cartridge cushion with pneumatic damping, according to claims 1 to 5, characterized in that it is provided that the compressed air contained in the chamber (6) reaches sufficient pressure to open the valve (2) by letting out a jet of compressed air that drives the lead charge by recovering part of the energy used in the damping, in pulse useful for firing, whether or not said valve (2) is calculated so that it opens when receiving the extra overpressure of the throttle of the barrel, also facilitating the passage of the block through the narrowing of the barrel by decreasing its internal resistance to compression, said valve being variable in its dimensions.
7a.- Taco para cartucho en dos piezas con amortiguación neumática, según las reivindicaciones 1 a 6, caracterizado porque el tabique transversal del contenedor y el de cierre del amortiguador tienen la forma convexo-cóncava adecuada para permitir absorber las deformaciones radiales respecto al eje de simetría del taco, permitiendo una perfecta obturación en diferentes diámetros de ánima así como que el paso del mismo con la carga a través del estrangula iento del cañón sea suave y uniforme.7a.- Taco for two-piece cartridge with pneumatic damping, according to claims 1 to 6, characterized in that the transverse partition of the container and the closure of the damper have the appropriate convex-concave shape to allow the absorption of radial deformations with respect to the axis of taco symmetry, allowing a perfect seal in different bore diameters as well as the passage of the same with the Load through the throttle of the barrel is smooth and uniform.
Según se describe y reivindica en la presente memoria que consta de 13 hojas foliadas y mecanografiadas por una sola cara y 6 láminas de dibujos. As described and claimed herein, it consists of 13 foliated and typed sheets on one side and 6 sheets of drawings.
PCT/ES1994/000053 1993-06-04 1994-06-01 Two-part cartridge wad with pneumatic damping WO1994029666A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP7501357A JPH07509775A (en) 1993-06-04 1994-06-01 Air damping two-element wad
EP94916989A EP0671598A1 (en) 1993-06-04 1994-06-01 Two-part cartridge wad with pneumatic damping
AU68451/94A AU6845194A (en) 1993-06-04 1994-06-01 Two-part cartridge wad with pneumatic damping

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9301229A ES2076081B1 (en) 1993-06-04 1993-06-04 TACO FOR CARTRIDGE IN TWO PIECES WITH PNEUMATIC CUSHIONING.
ESP9301229 1993-06-04

Publications (1)

Publication Number Publication Date
WO1994029666A1 true WO1994029666A1 (en) 1994-12-22

Family

ID=8282068

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES1994/000053 WO1994029666A1 (en) 1993-06-04 1994-06-01 Two-part cartridge wad with pneumatic damping

Country Status (7)

Country Link
EP (1) EP0671598A1 (en)
JP (1) JPH07509775A (en)
CN (1) CN1110485A (en)
AU (1) AU6845194A (en)
CA (1) CA2140913A1 (en)
ES (1) ES2076081B1 (en)
WO (1) WO1994029666A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9778002B2 (en) * 2013-12-20 2017-10-03 Ra Brands, L.L.C. Shot cup wad
US10850584B2 (en) 2016-06-07 2020-12-01 Beijingwest Industries Co., Ltd. Damper housing and a method for manufacturing the damper housing

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE171410C (en) *
BE702530A (en) * 1966-01-26 1968-01-15
LU59337A1 (en) * 1968-08-27 1970-01-07
FR2070268A6 (en) * 1969-11-07 1971-09-10 Delage Beaudeuf Joseph
AU422052B2 (en) * 1966-11-28 1972-03-03 Wad column
FR2343219A1 (en) * 1976-03-03 1977-09-30 Piegay Marcel Hunting gun cartridge wad - has annular external recess round internal chamber and between cylindrical portions

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289586A (en) * 1964-11-09 1966-12-06 Fed Cartridge Corp Wad column
ES157781Y (en) * 1970-04-20 1971-03-16 Angulo Egana PERFECTED PLUG FOR LOADING CARTRIDGES FOR HUNTING
ES167111Y (en) * 1971-03-18 1972-02-16 Bernard Lajus TACO FOR HUNTING CARTRIDGES.
US4220090A (en) * 1978-09-05 1980-09-02 Fackler David G Shot wad column
ES296581Y (en) * 1985-03-25 1989-07-01 Piegay Marcel PLUG FOR HUNTING SHOTGUN CARTRIDGE AND OTHER FIREARMS

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE171410C (en) *
BE702530A (en) * 1966-01-26 1968-01-15
AU422052B2 (en) * 1966-11-28 1972-03-03 Wad column
LU59337A1 (en) * 1968-08-27 1970-01-07
FR2070268A6 (en) * 1969-11-07 1971-09-10 Delage Beaudeuf Joseph
FR2343219A1 (en) * 1976-03-03 1977-09-30 Piegay Marcel Hunting gun cartridge wad - has annular external recess round internal chamber and between cylindrical portions

Also Published As

Publication number Publication date
CN1110485A (en) 1995-10-18
AU6845194A (en) 1995-01-03
ES2076081R (en) 1997-10-16
EP0671598A1 (en) 1995-09-13
ES2076081A2 (en) 1995-10-16
JPH07509775A (en) 1995-10-26
CA2140913A1 (en) 1994-12-05
ES2076081B1 (en) 1998-07-01

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