ES2376207A1 - Warhead with multiple effect units - Google Patents

Abstract

The present invention refers to a fragmentable aerodynamic device comprising a body which comprises a series of gas-generating units (1, 2 and 3), each one of which has a cylindrical casing comprising a pan (4) and a closing lid (5), where there is a combustible mix (6), being the different casings axially coupled between one another, having one of the end units (3) an ignition fuse (8), where each one of the casings has an internal coaxial core (19) which is located between the bases of the casing and has an axial drill going through said bases, except for the external base of the end unit (1) which does not have the fuse (8), whose drill is designated for having a fire-transmitting mix (20) and characterized in that said casings have on their wall mutual coupling and fixing -means, which can be released by the pressure of the gases generated by the combustion of the transmission mix and the combustible mix contained in each casing.

Description

Fragmented aerodynamic device.

Field of the Invention

The present invention relates to an artifice fragmented aerodynamic, which can be launched by hand or with a weapon of fire and that is a carrier of gas producing substances smokers, tear, signaling, etc.

More specifically the artifice of the invention It is of the type comprising a cylindrical body composed of a series of independent gas producing units, coupled and axially fixed to each other, being one of the extreme units carrier of a fuze of manual or automatic actuation, by launch with a firearm.

Background of the invention

Smoke artifacts of the type are already known exposed, in which each smoke producing unit comprises a cylindrical housing, composed of a bowl and a lid, inside the one that houses the combustible product gas products.

The bowl and lid are usually of nature metal, usually aluminum, which increases the cost and weight of each unit and with it the smoke artifact.

On the other hand, fixing between cups can present security problems, with the risk of separation accidental between cups, once the device was launched, before That this reaches the convenient height or distance.

One more problem of metal cups is that, because they are of a different nature than others metal components of the fuze, problems of oxidation.

Another problem presented by the artifice of Exposed type is that the transmission of fire, from the fulminant even the furthest unit does not occur with effectiveness desired, as to the delay with which the ignition should be transmitted from the fuze to the nearest unit, as well as to the security of fire transmission between consecutive units and a the production of gases that ensure the separation between units.

Finally it should be noted that the devices known are usually designed to be launched with a weapon of fire requires its introduction into the weapon in a sense determined.

Description of the invention

The object of the present invention is to eliminate the exposed problems, by means of an artifice in which the housings and covers of the gas producing units are of plastic material, for example based on polyamides or polyamides tropicalized, which allows to lower the costs of the carcasses, their weight, and also avoid the risk of oxidation.

Another object of the invention is to provide the media housings that ensure fixation between the different smoke producing units, preventing their accidental separation and ensuring that the separation between units will only take place, after firing the device, once it reaches the convenient height or distance.

Another object of the invention is to achieve that the artifice has a fire transmission delay, between the fuze and the nearest unit, as well as means to ensure the fire transmission between different units and separation of them, once activated the fuze and launched the artifact.

In the pyrotechnic artifice of the invention each one of the cups has an internal central core, which runs between the bases of the housing and has a drill coaxial that crosses these bases, except the external base of the Extreme unit not carrying the fuze. The drill is intended to contain a transmitter transmitter mixture, a mixture that remains in contact with a retarder disposed between the fuze and the adjacent base of the carrier unit of said fuze.

With the constitution mentioned, the housing of each unit, consisting of bowl and lid, is strengthen, thanks to the inner core that runs between the lid and bottom of the bowl. This core can be part of the cover and rest on the inner surface of the bottom of the bowl.

On the other hand, the coaxial core drill Internal quoted presents sections of different sections that ensure the fire transmission between consecutive units and also the sufficient gas production to ensure the separation of different units, once activated the fuze and launched the artifice.

In the artifice of the invention the bowl it has an external peripheral recess in its wall, from the closed base, and an internal peripheral recess, from the edge free of the wall. These recesses are in diameter and depth equal, so that the external peripheral recess of each unit is attachable in the internal peripheral recess of the next unit, defining coupling means between housings.

In addition the cups have on their wall means of mutual fixation that are releasable once the Artificial and activated fuze, when the gas pressure caused by the combustion of the transmitter mixtures and fuel contained in each housing reaches a value preset, which ensures that the artifice reaches the height or convenient distance

Fixing means between housings Consecutive consist of small projections and housings complementary that present the cups in its wall in matching positions, in the areas of mutual coupling. The projections protrude axially from the free edge of the wall of the bowl and housings are located in axial positions matching from the bottom of the external peripheral recesses, said projections and recesses being finished off in widenings complementary ends, whose coupling and separation requires a slight elastic deformation, which is achieved by being the housings Made of plastic material.

According to another feature of the invention, the fuze carrying unit carries coupled over the free edge from its wall a second cover on which the fuze is mounted. This second cover has a central housing in which a core that is the carrier of the retarding fuel mixture, which will be in contact with the fuel mixture that fills the drill of the core of the adjacent unit.

As is traditional in this type of artifice pyrotechnics, the fuze has a transport insurance that is broken by the firing pin, during the launch of the device by a firearm.

The artifice of the invention is designed to that can be fired whatever the position Enter into the throwing weapon. For this, the firing pin of the fuze is held internally by transport insurance, which is broken when the artifact introduced in a certain sense, while externally it is closed by a sealing cap that has a weakening ring that is breakable in case the artifact gets into the weapon in opposite direction, that is on the side of the fuze.

Brief description of the drawings

The attached drawings show an example of non-limiting realization, with the help of which they can be understood better the features of the artifact of the invention. In the drawings:

Figure 1 is a diametral section of a smoke artifact constituted according to the invention, with a automatic fuze operated by launch by means of a fire.

Figure 2 shows in partial diametral section an artifact similar to that of figure 1, with fuze of manual override.

Figure 3 is a diametral section of one of the intermediate cups that make up the artifact of the invention.

Figure 4 is a diametral section of the extreme bowl.

Figure 5 is a side elevation of the lid top of the bowl on which the fuze is mounted.

Figure 6 corresponds to detail A of the Figure 1, on a larger scale.

Description of an embodiment

Figure 1 shows an artifact. pyrotechnic constituted according to the invention, which it comprises a body that in the example represented in the drawings It is composed of three gas producing units, which are reference numbers 1, 2 and 3. Each unit includes a cylindrical housing that is composed of a bowl 4 and a lid closure 5. Within each housing a product load 6 is housed fuel producing fumigant, tear gas, of signaling, etc., which will go abroad through holes 7 presenting the covers 5.

One of the extreme units, in the example represented in the drawings the unit referenced with the number 3, It is a carrier of a fuze 8, which includes a body 9 that defines a housing for a bushing 10 that bears the firing pin 11 and which is externally closed by a cover 12 easily breakable The firing pin 10 is kept in a position of retraction by means of transport insurance 13, easily breakable and by the spring 14. In the body 9 there is also a fulminant 15, against which the firing pin 11 will act upon being moved towards said fulminant by breakage of the insurance 13 and spring compression 14.

The described effect will occur when the artifact in a gun endowed with bocacha, with the fuze directed outward. After firing the gun the firing pin 11 by inertia breaks transport insurance 13 and overcomes the resistance of spring 14, hitting the fulminant 15, to cause its combustion.

The cups of the different units, except for the extreme unit 1, presented on the wall, from the closed base, an external peripheral recess 16, as well as a recess internal peripheral 17 from the free edge of its wall, being the outer peripheral recess 16 of each cup can be attached to the internal peripheral recess 17 of the next bowl, as Show in the drawings. Bowl 4 of the extreme unit 1 lacks external peripheral recess, to configure a closing bottom 18.

The closing lid 5 of each bowl is located immediately inside the inner peripheral recess 17 of the wall, so that the bottom of each bowl will rest on the cover 5 of the next unit.

The lid 5 of each bowl has a core central 19 equipped with a coaxial drill 20, with different sections section, which are filled by a 20 'transmitter mix fire.

The bowl of the unit 3 carrying the fuze 8 is closed by a second cover 22, which it has a central housing in which a core 23 is mounted bearer of a delay 24.

As you can see, hole 20 of core 19 of each lid crosses the lid and bottom of each bowl, so that the 20 'fire transmitter mixture runs between delay 24 and the extreme unit 1, ensuring the ignition of all loads 6 gas producers. The bottom of each bowl 4, except for the extreme unit 1, forms a widening 24 capable of accommodating a greater amount of fire transmitter mixture, capable of producing gases to cause separation between consecutive units, at The artifact is fired.

With the constitution commented, when shooting the artifact introduced into a mouth of a firearm, in the previously described, the firing pin 11 breaks the insurance of transport 13 and overcoming the force of the spring 14 affects the fulminant 15 turning on, which in turn causes the ignition of the delay 24 that is transmitted, through the mixture of 20 'fire transmission, to chemical charges 6. The ignition of the fire transmission mixture 20 'in the widenings 24 will produce the separation between the different units 1, 2 and 3. The gases produced by the combustion of these chemical charges 6 they will come out through holes 7 of covers 5.

The artifice of the invention may include also a manually operated fuze, as depicted in figure 2, in which the fulminant 15 'is turned on by the firing pin 11 'by actuating the lever 26, being said fulminant mounted on the fuze body 9 '. Lever 26 It can also be made of polyamide or tropicalized polyamide. For the other, the artifice of figure 2 is of constitution coinciding with the one described with reference to figure 1.

The recesses 16 and 17, which will be in diameter and approximately equal depth, constitute the means of coupling between consecutive housings. Also these housings they have mutual fixing means on their wall that are releasable due to the effect of the pressure of the original gases due to combustion of the transmitter and fuel mixtures contained in each housing. These means, as seen in Figures 3 and 4 may be constituted by small projections 28 protruding axially from the free edge of the wall of the cups 4 and in housings Complementary 29 having said cups on the wall, in matching positions, from the bottom of the recesses external peripherals 16. Both projections and recesses can be finished off in complementary widening 30s.

For fixing consecutive housings will introduce the highlights 28 of each bowl into the housings 30 of the next bowl, once placed in facing position and exerting slight pressure, until the widening is achieved 30 of the 28 projections will enter the accommodation 29, thanks to the elastic deformation that will be achieved by being the cups Made of plastic material.

Cup 4 of the extreme unit, represented in figure 4, it will present the projections 28 that can be introduced into the housings 30 of the bowl of the unit 2. On the other hand the lid 22, represented in figure 5, will have housings 29 for receive the bowl projections of the adjacent unit 3.

With highlights 28 and housings 29 you they have fixing means that prevent accidental separation of the different units that make up the artifice. The separation between the units will only take place, once the artifice is fired and activated the fuze, when the combustion of the mixture begins 20 'transmitter and fuel mixture 6 and the gases reach a preset pressure, thus ensuring that the device launched Reach convenient height or distance.

As stated above, in the artifice of figure 1 the fuze 8 includes a body 9 that defines a housing for a bushing 10 that bears the firing pin 11 and which is externally closed by a plug sealing 12 which has a weakening ring 32, figure 6, which is breakable, in case the device is introduced into the weapon on the side of the fuze, as a result of the gases of the weapon in charged with the firing of this device. Breaking the plug 12 will cause the firing pin 11 to break the safety of transport 13 and overcome the force of the spring 14, so that hit the fulminant causing the delay to ignite 24.

The operation of the artifice, whatever the sense in which it is Enter in the weapon.

The fixing means between the cups of the different housings, constituted by the 28 and housings 29 also serve as a means of fixing between housings, to prevent their rotation. These means of fixing also ensure that the different units do not separate until we reach the necessary internal pressure.

The different housings can also have on the wall, internally, of an annular channel 33, figure 3, in the that an O-ring can be mounted, which is best achieved sealed between consecutive units.

Although in the example described with reference to Figures 1 and 2 the device includes only three units gas producers, as this number can be understood can vary, increasing or decreasing.

Claims (6)

1. A fragmented aerodynamic device, comprising a body composed of a series of units (1, 2 and 3), producing gas, each of which comprises a cylindrical housing composed of a bowl (4) and a cover (5) closure, in which a fuel mixture (6) is housed, the different housings being axially coupled to each other, being one of the end units (3) carrying an ignition fuze (8), characterized in that each of the housings It has an internal coaxial core (19) that runs between the bases of the housing and has an axial bore that crosses said bases, except the external base of the end unit (1) not carrying the fuze (8), whose bore is intended to contain a fire transmitter mixture (20); and because said housings have on their wall coupling and mutual fixing means, which are releasable due to the pressure of the gases caused by the combustion of the transmitter and fuel mixtures contained in each housing. 2. Artifice according to claim 1, characterized in that the bowl (4) has on the wall an external peripheral recess (16), from its closed base, and an internal peripheral recess (17), from its free edge, after which the lid is located, said recesses having equal diameter and depth to define the coupling means between housings. 3. Artifice according to claim 1, characterized in that the fixing means between consecutive housings consist of small projections (28) and complementary housings (29) that present the cups in their wall in coincident positions, in the coupling areas. 4. Artifice according to claim 3, characterized in that said projections (28) axially protrude from the free edge of the wall of the cups and the housings (29) are located in coincident axial positions, from the bottom of the external peripheral recesses ( 16), said projections and recesses being finished off in two complementary endings (30) complementary. 5. Artifice according to the preceding claims, characterized in that the unit (3) carrying the fuze (8) has a second cover (22) attached to the free edge of its wall on which the fuze is fixed, the second cover of which has complementary housings (29) with the small projections (28) of the bowl (4) of the adjacent unit (3) and forms a central housing in which a core (23) is mounted which is a carrier of a retarding fuel mixture (24 ) which is arranged between the fuze (8) and the bore (20) of the unit (3) carrying said fuze. 6. Artifice according to claim 1, characterized in that the bowl (4) and cover (5) of each housing are made of polyamides or tropicalized polyamides.