JP4698317B2 - Bounce prevention device - Google Patents

Description

  The present invention relates to an apparatus for preventing bullets from penetrating a shooting target during shooting training at a shooting range.

  A bullet that has penetrated a shooting target during a shooting training at a shooting range has conventionally accumulated a sandbag filled with sand in a cloth bag around the target, bites into the sandbag, prevents jumping, and removes the sandbag As a result, bullets were being collected. In this method, it is difficult to collect the shot bullets, causing problems such as lead damage, and bullets stopped inside the sandbag by the bullet type are deformed and crushed and difficult to collect. This is because in order to collect bullets stopped inside the sandbag, the sandbag must be removed and separated and collected by a dedicated instrument or a specialized contractor, and cannot be recovered in the shooting range.

  In addition, the sandbag must be completely removed for recovery. In reality, such work is impossible, and there is a case in which the lead component is melted from the sandbag installed in the long term and lead damage is caused. Furthermore, it is difficult to arrange the entire surface of the indoor shooting range on the wall or ceiling. This is because when sandbags are placed on the wall surface of a limited space such as an indoor shooting field, the shooting space must be sacrificed, and it is not practical to place it on the ceiling surface.

  An apparatus and a method for facilitating the collection of bullets in place of the above-described method using a sandbag is disclosed in Patent Document 1. The bullet collecting device according to this publication is composed of a container filled with sand that captures bullets inside, provided with a synthetic resin material or a rubber material that closes bullet bullet holes at least on the front surface in the bullet incident direction. It is to be installed behind. And, the recovery method is to install the container behind the target of the shooting range, and after shooting training, discharge the bullets shot into the container together with the sand filled in the container, and collect the bullets. It is a method of doing.

The device that fills the container with sand and captures bullets is used as an actual device in which a plurality of containers are stacked and a plurality of sets are installed in the direction in which the bullets fly for safety. In such an apparatus, bullets that penetrate the front surface of the container are stopped in the container by the sand, and even if the bullets penetrate the front surface, the outflow of sand is prevented by contraction of the front surface member. However, when collecting the captured bullets, the container is lifted, the discharge port on the bottom is opened, and the shot bullets are discharged out of the container together with the sand filled in the container. Will be collected. The container is heavy, it is difficult to determine which container has a bullet in it, and there is still room for improvement in order to make collection work easy and efficient.
JP 2003-287399 A

In view of the above problems, the present invention provides a bullet prevention device that is easy to handle like a flexible sheet, has a high bullet (stopping) prevention effect, and can easily collect bullets. Is an issue.
It is another object of the present invention to provide a flexible sheet for preventing bullets that is compatible with the above-mentioned bullet preventing apparatus.

As a means for solving the above-mentioned problems, the present invention independently supports a plurality of flexible sheets containing synthetic resin or rubber on the target periphery of the shooting range via supporting means in outdoor or indoor shooting ranges. Ri consists flexible sheet group to be, the flexible sheet, bullet, is configured to penetrate, and its thickness is less bullet length, the flexible sheet group, the The number of sheets necessary for the flexible sheet to attenuate and stop the kinetic energy of the bullets is combined in a separate and independent state to form a bullet prevention device.

  According to the bullet prevention device having the above-described configuration, the bullet energy is attenuated by the flexible sheet placed at a predetermined position behind the target and the bullet is effectively prevented. And even if it falls from between the flexible sheets or adheres to the flexible sheet and stops, it can be easily removed and the collection becomes easy. Since the flexible sheet is supported as a group of a plurality of sheets so as to be movable and separated from each other, even if a bullet is shot, the kinetic energy is attenuated each time it penetrates each sheet, and a predetermined number of sheets are loaded. Stop when you pass. Therefore, if the number of sheets in the sheet group is several times the number of sheets before stopping in consideration of safety, the sheet group will not penetrate.

  As a flexible sheet suitable for the above-mentioned bullet prevention device, a plurality of flexible sheets containing synthetic resin or rubber, which are necessary for attenuating and stopping bullet kinetic energy, are combined separately and independently. A flexible sheet for preventing jumping can be used. The flexible sheet may be any flexible sheet including synthetic resin or rubber, but preferably has a property of attenuating kinetic energy by applying frictional resistance as much as possible to the penetrating bullet. The support means may be of a type that can support the flexible sheet separately and independently from the upper surface portion or its periphery, and a support arm or a support guide member can be used.

According to the present invention, the bullet prevention device supports the plurality of flexible sheets separately from each other by the supporting means around the target and arranges them behind the target. Even if it is inserted, the bullet is prevented by stopping with the predetermined number of sheets, and if it stops between the sheets, the bullet will fall down and will be easily removed even if it stops within the thickness of the sheet Therefore, it is easy to collect, and there is an advantage that bullets can be collected at the shooting range without using a dedicated collecting device or equipment.
In addition, the flexible sheet for preventing bullets that is compatible with the above-mentioned bullet preventing device is a combination of a plurality of flexible sheets containing synthetic resin or rubber, which are separated and independently combined, so that it absorbs the kinetic energy of bullets. The sheet can be used as a sheet that can prevent the jumping of the bullet, and there is an advantage that the bullet collecting operation is easy and efficient.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows (a) an overall schematic diagram of an indoor shooting field provided with the embodiment of the embodiment of the present invention, and (b) a schematic perspective view of the system. As shown in the figure, the anti-bounce device A is a predetermined distance backward from the target 2 in order to prevent a bullet (rifle) P fired from the rifle 1 toward the target 2 after the bullet P penetrates the target 2. is set up. In addition, the apparatus for preventing splash A is a flexible structure in which a plurality of flexible sheets 3 are suspended from the ceiling surface C by inserting the arm of the support means 4 into the hole above the sheet and each sheet is supported independently. It is made of a conductive sheet group, and is installed along the wall surface W in the direction F to which the bullet P passing through the target 2 faces.

  The flexible sheet 3 is made of a flexible (flexible) material such as a synthetic resin sheet, a rubber sheet, a rubberized cloth, or a synthetic resin-coated cloth obtained by coating a woven cloth with a synthetic resin. The synthetic resin sheet is a thermoplastic resin such as vinyl chloride, the rubber sheet is a variety of synthetic rubber, the rubberized cloth is a woven cloth coated with rubber, and a material having a high passage resistance against the bullet P may be used. it can. The sheets are not bonded to each other, and are supported in a separate and independent manner that are movable independently of each other in the shooting direction of the bullet P. The thickness of the flexible sheet 3 is not more than the maximum length of the bullet type to shoot. Further, any of the above various sheets may be used in combination.

  In the illustrated example, the support means 4 is in the form of an arm extending from the ceiling surface C. However, the support means 4 may be supported by an arm attached to the wall surface W or a guide support frame. With respect to the arm, it is possible to provide a locking piece on the upper side of the sheet without providing a hole in the sheet so that the locking piece is hooked on the arm. In the guide support frame, locking pieces project from both sides of the upper part of the seat, and the locking pieces can be supported by the guide support frame. In either case, it is necessary that each sheet is supported in a separate and independent manner. Further, the number of flexible sheets is set to a number sufficient for bullets not to penetrate through all the sheets and to be stopped on the way.

  According to the bullet prevention device A having the above-described configuration, the bullet that has penetrated the target 2 is stopped at an appropriate number of positions in the thickness of the plurality of flexible sheets 3 as shown in FIG. . Since the flexible sheet 3 is used, each time a bullet penetrates each sheet, the kinetic energy of the bullet is absorbed and stopped at an appropriate number of positions. If a bullet is stopped between the sheets, it will fall to the floor, and even if it stops within the sheet, the sheet thickness is less than the length of the bullet, so for example by shaking the sheet in whole or in part. It can be easily recovered without falling off the sheet and using a dedicated recovery device or equipment.

  In addition, when the flexible sheet group is supported in a separated and independent manner without bonding, a spacer may be attached to or placed on each sheet so as to ensure a certain gap. Moreover, although the example which provided the flexible sheet group along the wall surface W was shown, you may make it provide along a ceiling surface. In this case, the flexible sheet group may be supported in an inclined manner on the ceiling surface as the bullet is shot obliquely upward. In the illustrated example, an indoor shooting range is shown, but the present invention can also be applied to an outdoor shooting range. The support means 4 may be installed at an appropriate position behind the target.

  A fire test was conducted to measure the stopping performance of an example of the flexible sheet 3 using a rubberized cloth. In the test, as shown in FIG. 1A, a plurality of flexible sheets 3 are suspended at a position 25 m away from the position of the rifle 1, and rubberized cloth, metal powder, old tires, etc. at the same position. A rubber chip obtained by pulverizing the above was placed in a plastic container as a comparative example, and the test was performed so that each was under the same conditions. The bullets used were 5.56 mm and 7.62 mm, and the respective bullet lengths were about 10 mm and about 20 mm.

Example Rubberized cloth sheet Thickness 8 mm × 50 sheets Comparative example Rubberized cloth, metal powder, ground rubber chip of old tire
(30 (high) x 35 (horizontal) x 50 (depth) cm in plastic container)
Stop distance 1. Example 5.56 mm bullet 48 mm (sixth sheet)
(Rubber-coated sheet) 7.62 mm bullet 80 mm (10th sheet)
2. Comparative Example 1 5.56 mm bullet about 100 mm
(Metal powder tip) 7.62mm bullet approx. 120mm
3. Comparative Example 2 5.56 mm bullet approximately 150 mm
(Rubber-coated cloth tip) 7.62 mm bullet Approx. 220 mm
From the above results, it was found that the example of a plurality of flexible sheets of rubberized cloth has the greatest effect of preventing bullet (stopping). The test situation is shown in FIG. (A) is a photograph of a rubberized cloth sample of the example, and (b) is a photograph showing plastic containers of Comparative Examples 1 and 2. The sample in (a) is the first sample with a 7.62 mm bullet stopped, and in FIG. (B), a bullet is driven from the direction of the arrow toward the container window.

  The bullet prevention device of the present invention comprises a plurality of flexible sheets, and can be used to prevent bullets and collect bullets in shooting training at a shooting range.

(A) Overall schematic layout diagram including the embodiment of the embodiment of the present invention in a shooting range, (b) perspective view of the appearance of the device Partial enlarged cross-sectional view of a jump prevention device (A) Photograph of sample of flexible sheet of example, (b) Appearance photograph of plastic container of comparative example

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rifle 2 Target 3 Flexible sheet 4 Support means A Bulletproof device P Bullet

Claims (3)

Outdoors or indoors firing range, Ri consists flexible sheet group which is supported independently through the support means to a target periphery of shooting ranges of the plurality of flexible sheet comprising a synthetic resin or rubber, wherein accessibility The flexible sheet is configured such that a bullet passes therethrough, and the thickness thereof is equal to or less than the bullet length, and the flexible sheet group attenuates the kinetic energy of the bullet. A bullet prevention device characterized in that the number of sheets required for stopping is combined in a separate and independent state .   The material of the flexible sheet is either a synthetic resin sheet, a rubber sheet, a rubberized cloth coated with rubber on a woven cloth, or a synthetic resin coated cloth sheet coated with a synthetic resin on a woven cloth, or any of the sheets The jump preventing apparatus according to claim 1, wherein the apparatus is a combination.   3. The bullet preventing device according to claim 1, wherein the flexible sheet is supported in a separate and independent manner movable in the bullet shooting direction.