WO2017190836A1 - Collecteur de balles - Google Patents

Collecteur de balles Download PDF

Info

Publication number
WO2017190836A1
WO2017190836A1 PCT/EP2017/000551 EP2017000551W WO2017190836A1 WO 2017190836 A1 WO2017190836 A1 WO 2017190836A1 EP 2017000551 W EP2017000551 W EP 2017000551W WO 2017190836 A1 WO2017190836 A1 WO 2017190836A1
Authority
WO
WIPO (PCT)
Prior art keywords
bullet
bullet trap
absorbing material
container
particles
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2017/000551
Other languages
German (de)
English (en)
Inventor
Alfred RAU
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schlayer Marlene
Original Assignee
Schlayer Marlene
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 Schlayer Marlene filed Critical Schlayer Marlene
Priority to EP17721329.5A priority Critical patent/EP3452776A1/fr
Publication of WO2017190836A1 publication Critical patent/WO2017190836A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41J—TARGETS; TARGET RANGES; BULLET CATCHERS
    • F41J13/00—Bullet catchers

Definitions

  • the invention relates to a bullet trap according to the preamble of claim 1.
  • Projectile catches are used in space shooting ranges or outdoor shooting ranges. They are used to safely reduce the kinetic energy of the impacting projectiles. It is known to use as an energy absorbing material sand, which is filled in the container of the bullet trap. When collecting the projectiles sand grains are crushed by the projectile. This creates dust that can settle in mechanical systems such as rail systems or the like and there ensures increased wear. Typically, the projectiles include lead. When collecting the projectiles, the lead deposits in the sand and the resulting sand dust. This lead dust abrasion and also the contaminated sand dust are poisonous. This requires an extraction system above the bullet trap. In a sand-filled bullet trap, so-called bullet nests are formed. Projectile nests are accumulations of several braked projectiles. If a projectile hits such a nest, there is a risk of bouncing and rebounding of the entire projectile or splintering of the projectile and a down or
  • the invention has the object of developing a bullet trap of the generic type such that a safe and quiet collection of projectiles is possible.
  • the energy-absorbing material is an elastomer
  • the energy-absorbing material consists of particles
  • the diameters of the particles are from greater than 0 ⁇ to 300 ⁇ .
  • the diameter of a particle here denotes the largest extent of a particle in one direction.
  • the group of elastomers include: natural rubber, butadiene / styrene rubber, butadiene rubber, isoprene rubber, ethylene-propylene rubbers, chloroprene rubber, nitrile rubber, butyl rubber, chlorine and the like. Bromobutyl rubber, silicone rubber, chlorosulfonated
  • Polyetylene rubber (Hypalon), polyethane rubber, epichlorohydrin rubber, polyacrylate rubber, ethylene-vinyl acetate rubber, fluororubbers, fluorosilicone rubber, norbornene rubber, chloropolyethylene acrylate rubber, ethylene acrylate rubber, hydrogenated nitrile rubber and all thermoplastic elastomers.
  • An elastomer in the context of the invention is one of the abovementioned substances. In the following, any desired mixture of the substances enumerated above is also referred to as the elastomer.
  • the energy-absorbing material is an elastomer, and consists of particles with a diameter of greater than 0 ⁇ to 300 ⁇ , it is not or hardly destroyed by bombardment. As a result, it does not or only to a very small extent to the development of dust.
  • the projectiles will not or hardly deformed and lead of lead-containing projectiles is not or hardly delivered to the energy-absorbing material. Little or no bullet nests are formed.
  • the bullet trap according to the invention is very safe. There are hardly or no lead-containing dusts that endanger the health. By avoiding bullet nests there are hardly or not to ricochets.
  • the noise load is significantly reduced in absorbing the kinetic energy of the projectiles in the energy absorbing material. Due to the small diameter of greater than 0 ⁇ to 300 ⁇ , resulting in a large bulk density. The high bulk density leads to a very good energy absorption by the energy-absorbing material.
  • the diameters of the particles are up to 100 ⁇ , in particular advantageously up to 40 ⁇ .
  • the energy absorbing material is an elastomer and that the diameter of the particles from 0 ⁇ to 300 ⁇ amount, the projectile during the deceleration process in the energy absorbing material of the bullet trap is hardly or not deformed. This is particularly advantageous in ballistic investigations.
  • the particles are rounded. This contributes to avoiding bullet nests. Due to the curves of the particles, the particles hardly or not interlock. This allows the particles to be easily displaced when a projectile penetrates the bullet trap. The projectile is not completely decelerated in this way already in an area near the bullet side. Due to the easier displacement of the particles through the projectile, no or only a negligible abrasion of the projectile occurs during deceleration. When using lead-containing spheres, the load of the energy-absorbing material with lead-containing toxins is negligible.
  • the particles are spherical.
  • the energy absorbing material is a ground elastomer.
  • the container has at least two chambers in the direction perpendicular to the injection side.
  • at least one chamber is filled with the energy absorbing material.
  • at least one chamber is substantially filled with air.
  • the chamber which is arranged adjacent to the injection side, substantially filled with air.
  • the at least two chambers are separated by a plate. The plate made of elastomer is advantageous. If the bullet trap fires with a projectile, the projectile first penetrates from the bullet side into the air-filled chamber adjacent to the bullet side. Subsequently, the projectile penetrates the elastomeric plate and penetrates into the chamber filled with the energy absorbing material.
  • the plate Due to the fact that the plate is made of elastomer, the hole resulting from the penetration of the plate through the projectile closes completely or almost completely again after the projectile has penetrated the plate. As a result, no or hardly any energy absorbing material passes from the filled with energy absorbing material chamber in the air-filled chamber. As the elastomeric plate penetrates a projectile, there are no large openings from which the energy absorbing material could trickle out. In this way, the energy absorbing material is enclosed in the at least one chamber filled with the energy absorbing material. It can also be provided that the plate rests directly on the bullet side. In this case, the volume of the substantially air-filled chamber is vanishingly small.
  • the container has an inner side, on which a first holding device and a second holding device are respectively arranged directly adjacent to each other for holding the plate.
  • a first holding device and a second holding device are respectively arranged directly adjacent to each other for holding the plate.
  • the bullet side is formed by a wooden panel. If ricochets hit the wooden panel in the opposite direction to the direction of penetration, they can be prevented by the wooden panel from escaping from the bullet trap.
  • the container has side surfaces which run perpendicular to the insertion side.
  • the side surfaces are fixed to a metal ring.
  • the metal ring leaves the bullet side free. As a result, the side surfaces of the bullet trap are stably connected.
  • the container has a perpendicular to the bullet side measured length, which is smaller than 100 cm.
  • the bullet trap can be accommodated in a shooting facility to save space.
  • the container is cuboid.
  • the longitudinal direction of the container is perpendicular to the bullet side.
  • FIG. 1 is a schematic, perspective view of a bullet trap, wherein the upper side surface of the bullet trap is removed, 2 shows a section along the dashed line II shown in dashed lines in Fig. 1,
  • FIGS. 1 and 2 detailed representations of particles of the energy absorbing material of FIGS. 1 and 2.
  • Fig. 1 shows a bullet trap 1.
  • the bullet trap 1 is used to safely reduce the kinetic energy of a projectile that penetrates into the bullet trap.
  • the projectile 1 has a bullet side 10.
  • the bullet side 10 is arranged perpendicular to an ideal weft direction 12.
  • the projectile 1 comprises a container 2.
  • the container 2 is bounded by the bullet side 10, side surfaces 21, 22, 23, 24 and a rear wall 14.
  • the side surfaces 21, 22, 23, 24 are oriented perpendicular to the bullet side 10.
  • the side surfaces 21 and 23 and the side surfaces 22 and 24 are each opposite in parallel.
  • the side surfaces 21 and 22 are oriented perpendicular to each other.
  • the side surface 22 forms the bottom of the container 2.
  • the upper side surface 24 is not shown to illustrate the interior of the bullet trap 1.
  • the projectile catch 1 is cuboid.
  • the longitudinal direction of the container 2 runs perpendicular to the injection side 10 and parallel to the weft direction 12.
  • the bullet side 10 is formed by a wooden panel.
  • the injection side is formed by an elastomer.
  • the side surfaces 21, 22, 23, 24 consist in the embodiment of wood. It can be provided that the inner sides of the side surfaces 21, 22, 23, 24 are lined with an elastomer. It can also be provided that the side surfaces 21, 22, 23, 24 are made of elastomer.
  • the rear wall 14 is a steel plate in the embodiment. However, it can also be provided that the rear wall 14 is formed by a concrete wall. The injection side 10 facing side of the rear wall 14 is lined in the embodiment with an elastomer.
  • the container 2 has two chambers 4, 5 in the weft direction 12.
  • the chamber 4 is arranged adjacently to the injection side 10. Between the chambers 4 and 5, a plate 6 is arranged.
  • the plate 6 separates the two chambers 4, 5 from each other.
  • the plate 6 is made of elastomer.
  • the chamber 5 is filled with an energy absorbing material 3.
  • the energy absorbing material 3 consists of particles 13, 33.
  • Chamber 4 is substantially filled with air.
  • the chamber 4 is bounded by a metal ring 11 in addition to the plate 6, the side surfaces 21, 22, 23, 24 and the injection side 10.
  • the container 2 has an inner side 7.
  • the opposite sides of the side surfaces 21, 22, 23, 24 and the opposite sides of the bullet side 10 and the rear wall 14 form the inner side 7 of the container 2.
  • the metal ring 11 is enclosed by the side surfaces 21, 22, 23, 24.
  • the side surfaces 21, 22, 23, 24 are fixed to the metal ring 11.
  • the metal ring 11 leaves the bullet side 10 free.
  • the metal ring 11 abuts against the inside 7 of the container 2.
  • the metal ring 1 1 is angled at four places at right angles.
  • a first holding device 8 and a second holding device 9 are arranged on the inside 7 of the container 2. Both holding devices 8, 9 serve to hold the plate 6.
  • the plate 6 is held either by the holding device 8 or by the holding device 9.
  • the two holding devices 8, 9 are arranged adjacent to each other in the weft direction 12.
  • the first holding device 8 has a smaller distance to the insertion side 10 than the second holding device 9.
  • the first holding device 8 and the second holding device 9 consist of U-profiles.
  • the legs of the U-shaped profile of the holding devices 8, 9 run parallel to the injection side 10.
  • the first holding device 8 comprises two opposing U-profiles.
  • the second holding device 9 also comprises two opposing U-profiles.
  • the U-profiles of the holding devices 8, 9 are arranged on the side surfaces 21 and 23.
  • the new plate When replacing the plate 6, the new plate, while the old plate 6 is still in one of the two holding devices, for example in the second holding device 9, in the other holding device, in this case in the first holding device 8, pushed.
  • 9 plates are held both in the first holding device 8 and in the second holding device.
  • the replaced plate 6 is pulled out of its holding device - in this case from the second holding device 9. Thereby, a transfer of energy absorbing material 3 from the chamber 5 into the chamber 4 during a plate exchange is avoided.
  • Upon penetration of a projectile in the weft direction 12 in the existing elastomeric plate 6 is formed in the plate 6 a hole.
  • this hole closes completely or almost completely after the projectile has penetrated the plate 6 and completely penetrated into the chamber 5. This results in no permanent holes in the plate 6, through which the particles 13, 33 of the energy absorbing material 3 could penetrate from the chamber 5 into the chamber 4.
  • FIG. 2 shows a section along the section plane II shown in dashed lines in FIG. 1.
  • the container 2 of the projectile nose 1 has a length 1 measured perpendicular to the entry side 10, parallel to the weft direction 12. The length 1 is less than 100 cm.
  • the chamber 5 of the container 2 has a length kl. The length kl of the chamber 5 is measured in the weft direction 12 and perpendicular to the bullet side 10 of the point farthest from the bullet side 10 of the second holding device 9 to the rear wall 14. The length kl of the chamber 5 is more than 90% of the length 1 of the container 2.
  • the chamber 4 has a length k2. The length k2 is measured perpendicular to the insertion side 10 and parallel to the weft direction 12.
  • the length k2 of the chamber 4 is measured from the bullet side 10 to the bullet side 10 closest point of the first holder 8.
  • the length k2 of the chamber 4 is exaggerated in the drawing in Figs. 1 and 2. In reality, the chamber 4 is much smaller in relation to the chamber 5.
  • the length k2 of the chamber 4 is less than 10% of the length 1 of the container 2.
  • the container 2 is filled with particles 13, 33.
  • the particles 13, 33 consist of
  • Fig. 3 shows the particle 13 and Fig. 4 shows the particle 33.
  • the particles 13, 33 are rounded. They have no corners or edges.
  • the particle 13 has no specific geometric shape. It can be described as lumpy or potato-shaped.
  • the particle 33 is spherical.
  • the absorbing material 3 is formed by both particles 13 and particles 33. However, it can also be provided that the absorbent material is formed exclusively by particles 13 or exclusively by particles 33.
  • the particle 13 from FIG. 3 has a diameter d 1.
  • the particle 33 of FIG. 4 has a diameter d2.
  • the term "diameter” refers to the one-dimensional largest extent of a particle, ie the length of the particle measured in the direction in which the particle has its greatest extent.
  • the diameter d2 of the spherical particle 33 is the diameter of a sphere in the geometric sense.
  • the diameters d1, d2 of the particles 13, 33 are from greater than 0 ⁇ m to 300 ⁇ m.
  • the diameters d 1, d 2 of the particles 13, 33 are at most 100 ⁇ m.
  • the diameters d 1, d 2 of the particles 13, 33 are preferably not more than 40 ⁇ m.
  • the bulk density of the energy absorbing material 3 increases. With a larger bulk density, the maximum amount of energy that increases from bullet trap 1 increases. The maximum of the bullet catch 1 to be included
  • Energy amount corresponds to the maximum amount of energy that a projectile may have so that its kinetic energy is completely and safely absorbed in the projectile 1.
  • the bulk density, and thus the diameter d1, d2 of the particles 13, 33, is adapted in the exemplary embodiment to the maximum amount of energy to be absorbed.
  • This adaptation of the bulk density to the maximum amount of energy to be absorbed takes place in Interplay with the adaptation of the length shown in Fig. 2 kl filled with the energy absorbing material 3 chamber 4.
  • the longer the length kl of the chamber 4 the greater the maximum amount of energy to be taken of a projectile by the projectile 1.
  • the maximum of the projectile 1 The energy to be absorbed can thus be unchanged if the length k1 of the chamber 4 is shortened, provided that at the same time the diameter of the particles 13, 33 is correspondingly reduced, that is, the corresponding bulk density is increased.
  • the energy absorbing material 3 of the particles 13, 33 is an elastomer.
  • the energy-absorbing material 3 formed by the particles 13, 33 is a ground elastomer.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

L'invention concerne un collecteur de balles (1) comprenant un contenant (2) pourvu d'un côté entrée (10) et un matériau absorbeur d'énergie (3). Le contenant (2) est rempli du matériau absorbeur d'énergie (3). Le matériau absorbeur d'énergie (3) est un élastomère. Le matériau absorbeur d'énergie (3) se compose de particules (13, 33). Les diamètres (d1, d2) des particules (13, 33) sont compris entre 0 μm et 300 μm.
PCT/EP2017/000551 2016-05-03 2017-05-03 Collecteur de balles Ceased WO2017190836A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17721329.5A EP3452776A1 (fr) 2016-05-03 2017-05-03 Collecteur de balles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202016002885.6U DE202016002885U1 (de) 2016-05-03 2016-05-03 Geschossfang
DE202016002885.6 2016-05-03

Publications (1)

Publication Number Publication Date
WO2017190836A1 true WO2017190836A1 (fr) 2017-11-09

Family

ID=56117000

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/000551 Ceased WO2017190836A1 (fr) 2016-05-03 2017-05-03 Collecteur de balles

Country Status (3)

Country Link
EP (1) EP3452776A1 (fr)
DE (1) DE202016002885U1 (fr)
WO (1) WO2017190836A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202019001557U1 (de) 2019-04-04 2019-04-15 Marlene Schlayer Geschossfang

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0438175A2 (fr) * 1990-01-19 1991-07-24 Allan Stefan Dipl.-Ing. Wojcinski Collecteur de bulles rempli de matériau granulaire
DE29920304U1 (de) * 1999-11-19 2001-01-04 Gerd Bücheler Schießanlagen und Schießstandbau, 70376 Stuttgart Geschossfangeinrichtung
DE102006048893A1 (de) * 2006-10-17 2008-04-24 Clariant International Limited Geschossfangmasse mit verbessertem Abfangverhalten für Geschossprojektile

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101644918B1 (ko) * 2015-10-16 2016-08-03 주식회사 에아가이아 실내 실탄사격장의 납흄 발생 억제를 위한 탄두 회수 시스템

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0438175A2 (fr) * 1990-01-19 1991-07-24 Allan Stefan Dipl.-Ing. Wojcinski Collecteur de bulles rempli de matériau granulaire
DE29920304U1 (de) * 1999-11-19 2001-01-04 Gerd Bücheler Schießanlagen und Schießstandbau, 70376 Stuttgart Geschossfangeinrichtung
DE102006048893A1 (de) * 2006-10-17 2008-04-24 Clariant International Limited Geschossfangmasse mit verbessertem Abfangverhalten für Geschossprojektile

Also Published As

Publication number Publication date
DE202016002885U1 (de) 2016-05-19
EP3452776A1 (fr) 2019-03-13

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