ES2336174A1 - Improvements introduced in a pyrotechnical canyon (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improvements introduced in a pyrotechnic can, whose cylindrical body below the closing wall and in its internal wall forms at least one peripheral groove or slit in order to fit by elastic jump at least one peripheral fin of a pipe formed in the support platform which determines the immovable connection of the barrel and the support platform during the deflagration of the launching load housed in the internal cavity of the barrel, contributing to said unión the hollow tubing of the support platform that is open by the upper base which it allows a greater elasticity of its cylindrical wall where at least the anchoring fin is formed, favoring the penetration of the tubulant inside the cylindrical body until at least said fin is inserted in at least one groove of the barrel. (Machine-translation by Google Translate, not legally binding)

Description

Refinements introduced in a canyon pyrotechnic.

The invention consists of improvements introduced into a pyrotechnic cannon for firing fires  artificial and of general application in the pyrotechnic industry which is made up of a vertical tube launcher in the air of the pyrotechnic housings housed inside for explosion to certain height, for which effect the barrel must be firmly attached to a support platform in order to prevent pressure of the firing shot of the pyrotechnic charge produce the involuntary removal of the barrel from its support platform, what which would cause the gun to tip over and the uncontrolled firing of the ground-level housings in all directions, which could create accidents between the audience and staff pyrotechnic, as well as causing material damage that could be irreparable.

The improvements introduced in the canyon pyrotechnic object of the invention are specified in the fact conform to the inner wall of the cylindrical tubular body of the cannon and below its closed base, a few means of lace internals that allow it to be fixed vertically by jump elastic on a support platform provided with a means of insert structured in a special way, which produces the union immovable from the barrel to the support platform, being trained the coupling of both bodies to resist without separating the abrupt reaction of the firing of the launch load of the pyrotechnic housings housed inside the canyon, which involuntary accidents in the firing of these cannons are avoided pyrotechnics

Also the improvements introduced in the pyrotechnic cannon also includes the special structure of the forming means formed on the support platform that are constituted by a hollow tubing and open at the base upper, whose advantageously elastic wall forms a fin peripheral that fits by elastic jump in the middle of the barrel of fast and efficient way.

In the current state of the pyrotechnic technique, It is already known that a pyrotechnic cannon is constituted by a hollow cylindrical body provided with a closing partition in proximity to one of its bases which determines an upper cavity to house inside several pyrotechnic charges and / or housings pyrotechnics as well as a lifting load, whose explosion to Through a delay wick or an electric igniter allows the launching of pyrotechnic loads or housings at a certain height for its delayed explosion and thus create the effects of noise and color desired in fireworks.

It is also known in the art, that the cylindrical body of the barrel is placed vertically on a horizontal support platform for which effect said platform has a protrusion closed by its bases and provided with an annular crest that allows its coupling under pressure on the internal smooth wall of the base
Canyon.

This system of union of pressure of the cannon on the support platform has been verified that it is not very effective during firing as the barrel tends to disengage from the support platform due to the pressure of the gases created in The explosion of the launching charge.

To avoid decoupling the two bodies have been used stapling media between the barrel and the support bulge, which improves said pressure bonding, but it requires a series of complementary works that cause a waste of time and energy, as well as labor demand specialized to perform the operations, which results in a Increase in the final cost of the finished product.

To alleviate these inconveniences the invention brings to the market some improvements introduced in the manufacture of pyrotechnic cannons, which improve those existing in the market, when obtaining in the operation of the molding of the cannon some lace means on its inner wall that allow a coupling fast with the insertion of a pipe obtained in the molding of the support platform, which ensures the immobility of the cannon on the platform in the firing gunpowder shot of the pyrotechnic charges housed inside.

For this purpose the improvements introduced into a pyrotechnic cannon are characterized because the cylindrical barrel body below the closing partition form at least one groove or slot in its inner wall peripheral ready to fit by elastic jump at least one peripheral fin of a tubing formed in the platform of support which determines the immovable union of the barrel and the support platform during load deflagration of launch lodged in the internal cavity of the canyon.

The hollow tubing of the support platform that is open at the top base what allows a greater elasticity of its cylindrical wall where it is conformed at least one fin favoring the penetration of the tubing inside the cylindrical body until at least said fin in at least one slot of the barrel.

For more understanding of it so far exposed, is accompanied by the present specification of a game of drawings in which the object of the invention is shown, without it should be understood that the graphic representation referred to constitutes a limitation of the peculiar characteristics of this application.

Figure 1.- Represents an elevation view and longitudinal section of a pyrotechnic cannon in disposition of vertical coupling on a support platform, where incorporate the perfected introduced in a pyrotechnic cannon, object of the invention.

Figure 2.- Shows an elevation view and section longitudinal of the pyrotechnic cannon of the previous view, coupled and embedded in the support platform through the improvements introduced in a pyrotechnic cannon, object of the invention.

The following are detailed and list the different components that make up the improvements introduced in a pyrotechnic cannon, object of the invention.

Looking at the first and second figures it turns out easily appreciated that the pyrotechnic cannon is constituted by a hollow cylindrical body (1), closed by a partition (2) conformed in proximity to one of its bases, which determines a internal cavity (3) inside which the explosive charge of launch and pyrotechnic housings for light effects and Fireworks color.

The partition (2) can completely seal the cavity (3) where the firing load and the housings are located pyrotechnics, in which case the fire for the ignition of the cannon is causes with a wick of delay that is introduced by its base open top or also said partition (2) may be provided with one or more central holes or series of holes forming a grid, so that said holes allow the passage of a lower flame that comes from a delay wick or a electric igniter and that reaches inside the cavity (3) to turn on the firing load and pyrotechnic devices housed inside.

The cylindrical body (1) of the barrel is located conventionally in vertical arrangement on a platform horizontal support (4) that is provided with a protuberance (5) for pressure coupling in the lower opening (6) of the barrel, determined between its lower edge and the closing partition (2) of said cannon.

The barrel body obtained in an operation of plastic molding, is perfected by forming in it molding operation on its inner wall (7) below the partition (2) at least one groove or peripheral groove (8).

Also the protuberance (5) of the support is perfect when being shaped in a form molding operation of a hollow tubing (10), provided with at least one fin peripheral (9) and whose upper base (11) is open, which determines that its cylindrical wall (12) maintains a certain elasticity where the peripheral fin (9) is formed.

All this is arranged so that when coupled the barrel (1) by the mouth (6) on the pipe (10) of the support platform (4), the peripheral fin (9) of said tubing will fit by elastic jump in the groove or slit peripheral (8) formed in the inner wall (7) of the barrel by under the closing partition (2).

In this way the peripheral fin (9) of the tubing (10) results in an anchoring means that fixes the position of the cylindrical body (1) of the barrel on the platform tubing support (4) immovably, which ensures that they remain both bodies joined in said fitting position during the cannon shot explosion and carcass launch pyrotechnics, making it impossible for the cannon to exit involuntarily from the support platform.

This connection also helps the tubing (10) of the support platform (4), which is open at its base upper (11), which determines that its cylindrical wall (12) where the insert fin (9) is formed, has a certain elasticity favoring the penetration of the tubing into the cylindrical body (1) of the barrel to produce the flap fit (9) in the groove (8) of said barrel body.

With all this it is achieved that the union of a pyrotechnic cannon with its support platform is more effective and be done with minimal effort or minimum waste of time and energy and at a very economical price since the lace and inserts Special configuration are performed in the same operation of molding of plastic bodies, thereby avoiding operations complementary complementary to the consolidation of the union of cannon with its support, nor specialized personnel required for assembly, thus reducing the final manufacturing costs of the product.

Claims (1)

1. Improvements introduced in a pyrotechnic cannon, of the type that is constituted by a hollow cylindrical body (1) closed by a partition (2) in proximity to one of its bases, to form an internal cavity (3) where the charges are housed pyrotechnics and that is arranged vertically on a support platform (4) provided with a protuberance (5) with an annular crest for the coupling fitted in the mouth (6) of the closed base of the barrel, characterized in that the cylindrical body (1) of the barrel below the closing partition (2) forms in its inner wall (7) at least one peripheral groove or groove (8) able to fit by elastic jump at least one peripheral fin (9) of a pipe (10) formed in the support platform (4) which determines the immovable union of the barrel (1) and the support platform (4) during the deflagration of the launch load housed in the internal cavity (3) of the barrel, contributing to said joining the hollow tubing (10) of the support platform (4) that is open by the upper base (11) which allows greater elasticity of its cylindrical wall (12) where at least the fin (9) is formed favoring the penetration of the tubing (10) into the cylindrical body (1) until at least said fin (9) is introduced into at least the groove (8) of the barrel.