JP2011149689A - Ricochet prevention structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ricochet prevention structure which stably demonstrates effect of ricochet prevention regardless of an installation state of bullet stop materials. <P>SOLUTION: The ricochet structure is mainly composed of a bullet stop material 10a inclined to a shooting side (on the left side in the figure), a bullet stop material 10b installed along a ceiling 63, and ricochet prevention materials 21a, 21b composed of a plurality of rectangular sheet materials 23 which are arranged to have an almost constant distance with respect to surfaces to be fired in the bullet stop materials 10a, 10b. The bullet stop materials 10a, 10b are respectively mounted with a plurality of fixing members 71 formed of square cylindrical bodies in an aligning state. The rectangular sheet material 23 is mounted to each fixing member 71 with a screw 77. Then, even if a bullet fired from the shooting side rebounds from any positions of the bullet stop materials 10a, 10b, a moving space of the bullet rebounded is limited, which makes the ricochet prevention structure demonstrate a stable effect of ricochet prevention. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a bullet prevention structure, and more particularly, to a bullet prevention structure for preventing bullets from being hit by existing bullet-stopping materials.

  FIG. 14 is a schematic cross-sectional view showing the bullet prevention structure disclosed in Patent Document 1. As shown in FIG.

  Referring to the figure, on the rear side (right side in the figure) of the target 3 erected on the floor 61, there are a bullet stopping member 51 made of a steel plate installed on the floor 61 and a suspension suspended from the ceiling 63. A rubber plate 52, which is a bullet preventing material, is disposed on the shooting side (left side in the figure) of the bullet member 51. The stopping member 51 is installed along a vertically installed wall (not shown).

  Shooter 1 fires bullet 8 toward target 3 with rifle 5. The fired bullet 8 penetrates the rubber plate 52 through the target 3 or without hitting the target 3, and collides with the bullet stopping member 51. Hereinafter, the operation of the bullet 8 behind the target 3 will be described.

FIG. 15 is a cross-sectional view showing the bullet preventing effect of the bullet preventing structure shown in FIG.
Referring to the drawing, the bullet 8 that has been fired first penetrates the rubber plate 52 as described above. And it collides with the bullet-stop member 51 installed in the back side of the rubber plate 52, and bounces back to the shooting side. Then, the bullet 8 bounced back to the shooting side collides with the back surface of the rubber plate 52. At this time, since the energy of the bullet 8 is reduced by the collision with the bullet stopping member 51, the bullet 8 does not penetrate the rubber plate 52 again. Then, the bullet 8 that has collided with the rubber plate 52 falls downward. In this way, the range of rebound of the fired bullet 8 from the bullet stopping member 51 is limited to ensure the safety of the sniper.

JP-A-8-136194

  In the conventional anti-bounce structure as described above, there has been a problem when the stopping member is not installed vertically. This will be described below with reference to the drawings.

  FIG. 16 is a sectional view showing another conventional anti-bounce structure, and corresponds to FIG.

  Referring to the drawing, this bullet prevention structure is installed against a wall 62 inclined to the shooting side (left side in the figure). Accordingly, the stopping material 10 is also installed between the floor 61 and the ceiling 63 in a state inclined to the shooting side. A rubber plate 52 similar to that shown in FIG. 10 is suspended from the ceiling 63 on the shooting side of the bullet-stopping material 10.

In the case of such a bullet prevention structure, the rubber plate 52 is installed vertically with respect to the slanted stopping material 10. Therefore, the space between the bullet-stopping material 10 and the rubber plate 52 increases as it goes downward.
Therefore, after the bullet 8 that has been fired penetrates the rubber plate 52 and collides with the bullet-stopping material 10, it bounces downward so as to correspond to the inclination of the bullet-stopping material 10. Then, as described above, since the space between the lower side of the bullet-stopping material 10 and the rubber plate 52 is large, the rebounding operation in which the bullet 8 bounced directly collides with the floor 61 and then collides with the back surface of the rubber plate 52. turn into.

Moreover, since it is necessary to move the installation position of the target 3 to the shooting side by the space between the above-described bullet-stopping material 10 and the rubber plate 52, the shooting space is narrowed. On the other hand, if the target 3 is moved backward as shown by a two-dot chain line in the figure in order to enlarge the shooting space, the rubber plate 52 is installed on the shooting side of the target 3 so that the target 3 can be seen from the shooter. It will disappear. That is, the rubber plate 52 cannot be installed.
Thus, the bullet prevention structure installed with respect to the wall 62 inclined to the shooting side has a low bullet prevention function and has become a bullet prevention structure that cannot effectively use the shooting space. .

  The present invention was made to solve the above-described problems, and an object thereof is to provide a bullet prevention structure that stably exhibits the bullet prevention effect regardless of the installation state of the bullet stopping material. To do.

  In order to achieve the above object, the invention according to claim 1 is a bulletproof structure, wherein the bulletproof material and the bulletproof material disposed at a substantially constant distance from the surface of the bulletproof material. It is equipped with.

If comprised in this way, even if it bounces from any location of a bullet-stopping material, the movement space of the bounced bullet will be restrict | limited.
According to a second aspect of the present invention, in the configuration of the first aspect of the present invention, the bullet face of the bullet-stopping material is inclined to the shooting side.

If comprised in this way, a bouncing prevention material will be arrange | positioned so that the bullet face of a bullet stopping material may be met.
The invention according to claim 3 is the structure of the invention according to claim 2, further comprising a fixing member attached to the surface of the bullet-stopping material, wherein the bullet-proofing material is divided into a plurality of rectangular sheet materials, Each of the shape sheet members is attached to a corresponding fixing member.

If comprised in this way, it will become possible to replace the damaged rectangular sheet material.
According to a fourth aspect of the present invention, in the configuration of the third aspect of the present invention, the fixing member has at least a flange portion, and the bullet prevention material is attached to the flange portion of the fixing member with a screw.

If comprised in this way, attachment with a screw will become easy.
According to a fifth aspect of the present invention, in the configuration of the fourth aspect of the present invention, the fixing member includes an H-shaped steel cut perpendicularly to the axial direction, and the H-shaped steel has one of the flange portions as a bullet-stopping material. In addition, the other flange portion is in contact with the anti-bounce material, and one of the flange portions is disposed so that only one corner portion of the rectangular surface in contact with the bullet stopping material is at the uppermost position.

  If comprised in this way, the possibility that the bullet which bounced off from the bullet stopping material may remain on the fixing member is reduced.

  According to a sixth aspect of the present invention, in the configuration of the third aspect of the present invention, the fixing member includes a rectangular cylindrical body, and the bullet preventing material is attached to the rectangular cylindrical body with screws.

  If comprised in this way, attachment with a screw will become easy.

  According to a seventh aspect of the present invention, in the configuration of the third aspect of the present invention, the fixing member is provided between the rectangular cylindrical body, the rectangular cylindrical body and the anti-bounce material, and is fixed to the rectangular cylindrical body. The anti-bounce material is attached to the support member of the fixing member with a screw.

  If comprised in this way, the attachment location by a screw will increase.

  According to an eighth aspect of the present invention, in the configuration of the sixth or seventh aspect of the present invention, the screw is screwed so that its head does not protrude from the anti-bounce material.

  If comprised in this way, the possibility that the shot bullet may collide directly with a screw reduces.

  According to a ninth aspect of the present invention, in the configuration of the sixth aspect of the present invention, the fixing member and the screw are formed with such a strength that the fired bullet can penetrate.

  If comprised in this way, the shot bullet will penetrate a fixing member and a screw.

  As described above, according to the first aspect of the present invention, even if the bullet is bounced from any location, the movement space of the bounced bullet is limited, so that the bullet prevention effect is stably exhibited.

  In addition to the effect of the invention described in claim 1, the invention described in claim 2 is capable of effectively utilizing the shooting space because the bullet prevention material is disposed along the surface of the bullet-stopping material. Become.

  In addition to the effect of the invention described in claim 2, the invention described in claim 3 can replace a damaged rectangular sheet material, and thus has an efficient structure.

  In addition to the effect of the invention described in claim 3, the invention described in claim 4 is easy to mount with screws, so that it is easy to mount the anti-bounce material and an efficient fixing method.

  According to the fifth aspect of the invention, in addition to the effect of the fourth aspect of the invention, the possibility that the bullet bounced off from the bullet stopping material will remain on the fixing member is reduced, so that the bullet can be easily collected.

  In addition to the effect of the invention described in claim 3, the invention described in claim 6 is easy to mount with screws, so that it is easy to mount the anti-bounce material and an efficient mounting method.

  According to the seventh aspect of the invention, in addition to the effect of the third aspect of the invention, the number of attachment points by screws increases, so that the screws can be easily exchanged and the attachment of the anti-bounce material is stabilized.

  In the invention described in claim 8, in addition to the effects of the invention described in claim 6 or claim 7, since the risk that the fired bullet directly collides with the screw is reduced, the fired bullet is reflected carelessly. The fear is reduced.

  According to the ninth aspect of the invention, in addition to the effect of the invention according to any one of the sixth to eighth aspects, since the bullet that has been fired penetrates the fixing member and the screw, the bullet is inadvertently reflected. There is nothing.

It is the front view which showed the bullet prevention structure by 1st Embodiment of this invention. It is sectional drawing of the II-II line shown in FIG. FIG. 3 is an enlarged view of a portion X shown in FIG. 2. It is sectional drawing of the IV-IV line shown in FIG. FIG. 2 is a cross-sectional view showing a bullet prevention effect of the bullet prevention structure shown in FIG. 1. It is a schematic diagram which shows the installation process of the bullet prevention structure shown in FIG. It is the front view which showed the bullet prevention structure by 2nd Embodiment of this invention. It is an expanded sectional view of the VIII-VIII line shown in FIG. It is a schematic diagram which shows the effect accompanying the arrangement | positioning shape of H-shaped steel. It is the front view which showed the bullet prevention structure by 3rd Embodiment of this invention. It is sectional drawing of the XI-XI line shown in FIG. It is an expanded sectional view of the XII-XII line shown in FIG. It is sectional drawing which shows the part of the member for fixation of the bullet-proof structure by 4th Embodiment of this invention. It is a schematic sectional drawing which shows the conventional bullet prevention structure. It is sectional drawing which showed the bullet prevention effect of the bullet prevention structure shown in FIG. It is sectional drawing which shows the other conventional bullet prevention structure. It is the front view which showed the bullet prevention structure by 5th Embodiment of this invention. It is sectional drawing of the XVIII-XVIII line shown in FIG. It is an expanded sectional view of the XIX-XIX line shown in FIG. It is sectional drawing which shows the part of the member for fixation of the bullet-proof structure by 6th Embodiment of this invention. It is process drawing which shows the repair operation | work of the rectangular sheet material of the bullet prevention structure shown in FIG.

  FIG. 1 is a front view showing a bullet preventing structure according to a first embodiment of the present invention, and FIG. 2 is a sectional view taken along line II-II shown in FIG.

With reference to these drawings, the anti-bounce structure 20 includes a bullet-stopping material 10a made of a steel plate installed along the wall 62 on the rear side (right side in FIG. 2), and a steel plate installed along the ceiling 63. It is mainly comprised from the bullet-stopping material 10b which consists of, and the bullet-proofing materials 21a and 21b arrange | positioned with the substantially constant distance with respect to the to-be-curved surfaces 11a and 11b in the bullet-stopping materials 10a and 10b. In addition, the structure of the part in the wall 62 and ceiling 63 of the bullet prevention structure 20 is the same structure except for the inclination angle of each member.
Further, the bullet-stopping material 10a is installed in a state inclined to the shooting side (left side in FIG. 2) as in the conventional example shown in FIG. And since the bullet preventing material 21a is arrange | positioned so that the to-be-curved surface 11a of the bullet-stopping material 10a may be used, a useless space is saved and it becomes possible to utilize a shooting space effectively.

A plurality of H-shaped steels 30a and 30b, which are fixing members and are cut perpendicularly to the width direction, are attached to each of the bullet stopping materials 10a and 10b by welding in an aligned state. The detailed structure and effects of the H-shaped steels 30a and 30b will be described later.
Further, each of the bullet prevention materials 21a and 21b is constituted by a plurality of rectangular sheet materials 23a and 23b made of a natural rubber sheet having a thickness of about 3 mm. Each of the rectangular sheet materials 23a, 23b is attached to each of the corresponding H-shaped steels 30a, 30b, and the outer edges of the adjacent rectangular sheet materials 23a, 23b are fixed with an adhesive. Yes. Therefore, it is possible to replace each of the damaged rectangular sheet members 23a and 23b, so that an efficient bullet prevention structure 20 is obtained.

  Next, the detailed structure of the H-shaped steels 30a and 30b will be described.

  3 is an enlarged view of a portion X shown in FIG. 2, and FIG. 4 is a cross-sectional view taken along line IV-IV shown in FIG.

Referring to these drawings, an H-shaped steel 30 is attached to a body portion (web) 31, flange portions 32 a and 32 b connected to both end sides of the body portion 31, and a rear surface of the flange portion 32 a by welding. Nuts 35a and 35b. Furthermore, openings 37a and 37b for inserting bolts 34a and 34b described later are formed at positions corresponding to the nuts 35a and 35b of the flange portion 32a.
The flange portion 32b is attached to the bullet stopping material 10a by welding so that one side 38 of the rectangular surface in contact with the bullet stopping material 10a is horizontal and the web direction is vertical. Further, the bolts 34a and 34b passing through the openings 27a and 27b formed in the rectangular sheet material 23 and the openings 37a and 37b of the flange portion 32a and the nuts 35a and 35 are screwed together to form a rectangular shape. The sheet material 23 is attached to the flange portion 32a. Accordingly, the rectangular sheet material 23 is disposed in a state where a certain distance A is maintained with respect to the ball surface 11a of the bullet stopping material 10a.
This distance A is extremely small, that is, adjusted by changing the dimension between the flange surfaces of the H-shaped steels 30a and 30b so as to correspond to various conditions so as not to be a distance in close contact. May be.

  Since the periphery of the H-shaped steel 30 is configured in this way, it is possible to replace each of the bolts 34a and 34b damaged by a direct impact of a bullet or the like. Therefore, it becomes easy to attach the rectangular sheet material 23 to the H-shaped steel 30 and an efficient fixing method.

  Next, the bullet prevention effect of the bullet prevention structure 20 shown in FIG. 1 will be described.

  FIG. 5 is a cross-sectional view showing the bullet preventing effect of the bullet preventing structure shown in FIG.

  Referring to the figure, a bullet 8 fired from a rifle (not shown) penetrates the rectangular sheet material 23 of the bullet preventing material 21 and collides with the bulleted surface 11a of the bullet stopping material 10a and then bounces downward. . Here, as described above, the anti-bounce material 21 is arranged in a state of maintaining a substantially constant distance with respect to the ball surface 11a. Therefore, even if the bullet 8 bounces from any part of the bullet stopping material 10a, the movement space of the bounced bullet 8 is limited. Therefore, the bullet 8 that has bounced back is surely collided with the back surface of the rectangular sheet material 23 and falls downward while colliding with the H-shaped steel 30 and the like. Therefore, the bullet preventing effect of the bullet preventing structure 20 is stably exhibited, and the bullet 8 can be easily collected.

  Further, even when the bullet 8 collides with the bullet stopping material 10a and is damaged, the damaged bullet 8 can be prevented from scattering, and the damaged bullet 8 falls between the bullet stopping material 10a and the rectangular sheet material 23. Since it accumulates in the lower part, recovery is also easy.

  In addition, although the figure shows about the part of the wall 62 of the bullet prevention structure 20, since it has the same structure also about the ceiling part, there exists the same bullet prevention effect.

  Next, a method of installing the bullet prevention structure 20 shown in FIG. 1 will be described.

  FIG. 6 is a schematic view showing an installation process of the bullet prevention structure shown in FIG.

First, referring to (1), one flange portion of the H-shaped steels 30a and 30b in which nuts (not shown) are welded to the ball-receiving surface 11 of the bullet-stopping material 10 arranged to be inclined to the shooting side (left side in the figure). A rectangular surface 32b on the bullet-stopping material 10 side is attached by welding.
Next, referring to (2), each of the rectangular sheet materials 23a, 23b is connected to the other flange portion 32a of the H-shaped steels 30a, 30b attached to the bullet-stopping material 10 with a bolt 34a and a nut (not shown). Install by screwing.
Next, referring to (3), the outer edges of the rectangular sheet materials 23a and 23b attached to the H-shaped steels 30a and 30b are bonded to each other with an adhesive to form the bullet preventing material 21. In this way, the installation of the bullet prevention structure 20 is completed.

  FIG. 7 is a front view showing a bullet prevention structure according to a second embodiment of the present invention, and FIG. 8 is an enlarged sectional view of the line VIII-VIII shown in FIG.

  Since the description is basically the same as that according to the first embodiment, the difference will be mainly described.

With reference to these drawings, in this embodiment, the arrangement shapes of the H-shaped steels 40a and 40b attached to the bullet stopping material 10a are different. In other words, in each of the flange portions 42b of the H-shaped steels 40a and 40b of the bullet prevention structure 25 in this embodiment, one rectangular portion 45 of the rectangular surface in contact with the bullet stopping material 10a is arranged at the uppermost position. Yes. Although the arrangement shapes of the H-shaped steels 40a and 40b are different, the attachment method between the members is the same as that of the first embodiment.
The effect of the H-shaped steels 40a and 40b arranged in this way will be described.

  FIG. 9 is a schematic diagram showing the effect of the arrangement shape of the H-shaped steel, wherein (1) is the H-shaped steel shown in FIG. 7, and (2) is the H-shaped steel shown in FIG.

  First, referring to (1), in the H-shaped steel 40, as described above, the rectangular portion 45 of the flange portion 42b is disposed at the uppermost position. Accordingly, each of the surfaces 49 of the H-shaped steel 40 is inclined with respect to the falling bullet 8. Therefore, when the falling bullet 8 collides with each of the surfaces 49 of the H-shaped steel 40, it bounces back so as to be guided downward as indicated by the two-dot chain line arrow in the figure. Therefore, the possibility that the bullet 8 bounced off from the bullet stopping material (not shown) stays on the H-shaped steel 40 is reduced. As a result, since the bullet 8 surely falls to the lower part, the bullet 8 can be easily collected.

  Next, referring to (2), in the H-shaped steel 30, as described above, one side 38 of the rectangular surface in the flange portion 32b is arranged to be horizontal. Therefore, on the surface of the H-shaped steel 30, the falling bullet 8 may remain between the surface 39 and a rectangular sheet material (not shown). Therefore, such bullets 8 must be collected in each of the H-shaped steels 30, making it difficult to completely collect the bullets 8.

  FIG. 10 is a front view showing a bullet prevention structure according to a third embodiment of the present invention, FIG. 11 is a sectional view taken along line XI-XI shown in FIG. 10, and FIG. 12 is shown in FIG. It is an expanded sectional view of the XII-XII line.

  Since the description is basically the same as that according to the first embodiment, the difference will be mainly described.

Referring to these drawings, in this embodiment, the shape of fixing member 71 and the means for attaching anti-bounce material 21a to fixing member 71 are different. That is, each of the plurality of fixing members 71 of the anti-bounce structure 26 in this embodiment is formed of, for example, a rectangular cylindrical body made of an aluminum alloy, and is stopped so that its longitudinal direction is up and down. It is attached to the material 10a at equal intervals. The rectangular sheet material 23 of the bullet preventing material 21 a is attached to the fixing member 71 with a plurality of screws 77. In addition, since the fixing member 71 is formed of a square cylindrical body made of an aluminum alloy, the screw 77 can be easily screwed into the fixing member 71. Therefore, it becomes easy to attach the anti-bounce material 21a to the fixing member 71, so that an efficient method of attaching the anti-bounce material 21a is obtained.
Further, the head 81 of the screw 77 is disposed so as not to protrude from the rectangular sheet material 23. In order to achieve such an arrangement state, the screw 77 is continuously screwed and a part of the flexible rectangular sheet material 23 is deformed to embed the head 81 of the screw 77. . And since the bis | screw 77 is arrange | positioned in this way, the possibility that the shot bullet may collide with the bis 77 directly is reduced. Therefore, the risk that the fired bullet will inadvertently reflect and bounce is reduced.
Further, the strength of each of the fixing member 71 and the screw 77 may be set so that the fired bullet can penetrate. In this case, the fired bullet passes through the fixing member 71 and the screw 77 and reliably collides with the bullet stopping member 10a, so that the bullet is not carelessly reflected and bounced.

  FIG. 13 is a cross-sectional view showing a part of the fixing member of the bullet preventing structure according to the fourth embodiment of the present invention, and corresponds to FIG. 11 of the third embodiment.

  Note that the description is basically the same as that according to the third embodiment, and thus the difference will be mainly described.

  With reference to the drawings, in this embodiment, the fixing member is a support member made of a rectangular tubular body 72 and a veneer plate installed between the rectangular tubular body 72 and the rectangular sheet material 23. 74 is different. That is, the support member 74 is attached to the rectangular cylindrical body 72 with screws 78, and the rectangular sheet material 23 is attached to the support member 74 with screws 79a and 79b. The positions of the heads of the screws 79a and 79b are the same as those in the third embodiment shown in FIG.

Since the rectangular sheet material 23 is attached to the plate-like support member 74 with screws 79a and 79b, the number of attachment points with the screws 79a and 79b increases compared to the attachment method shown in FIG. Accordingly, the mounting stability of the rectangular sheet material 23 is increased. Further, since the attachment positions of the screws 79a and 79b to the rectangular sheet material 23 are arbitrary, the rectangular sheet material 23 can be easily attached.
Further, for example, when a bullet that has been launched collides with the screws 79a and 79b and the screws 79a and 79b are damaged, the rectangular sheet material 23 can be easily attached again with new screws at the peripheral portions. Therefore, the screws 79a and 79b can be easily replaced.

In the fourth embodiment, the support member is formed of a plywood plate, but any other material such as a thin steel plate may be used as long as it is a plate-like material having a strength through which the fired bullet can penetrate. It may be formed by.
In the first and second embodiments, the rectangular sheet material is attached to the fixing member by bolts and nuts. However, the rectangular sheet material may be securely attached to the fixing member. For example, other members such as screws or an adhesive may be attached. In the case of mounting with a screw, it is only necessary to use an H-shaped steel with a thin flange portion so that the screw can be screwed together, and it is only necessary to screw it in, so mounting of the rectangular sheet material becomes easy. Further, the strength of the bolt and nut may be set to a size that does not reflect the fired bullet, for example, using a rubber bolt and nut.

  Furthermore, in said 1st and 2nd embodiment, although the H-shaped steel is used as a fixing member, if it is a steel material which has a flange part at least on the anti-bounce material side, other shapes may be used. good. Alternatively, other materials and shapes may be used as long as the shape is not limited to the steel material but can be attached to the bullet-stopping material and can be attached to the rectangular sheet.

Furthermore, in the first and second embodiments described above, the H-shaped steel is formed with substantially the same length, width, and height, but these may be formed with other dimensional ratios.
Furthermore, in the third and fourth embodiments described above, the rectangular sheet material is attached to the fixing member with screws, but if the rectangular sheet material can be reliably attached to the fixing member, It may be attached by other members.

  Furthermore, in the third and fourth embodiments described above, the rectangular cylindrical body is formed of an aluminum alloy, but if it has a strength that can be screwed with a screw, for example, a lightweight steel or a thin steel plate, It may be formed of other materials.

  Furthermore, in the third and fourth embodiments described above, the head of the screw that fixes the anti-bounce material is arranged so as not to protrude from the anti-bounce material, but the head of the screw protrudes from the anti-bounce material. May be arranged.

  Further, in the third and fourth embodiments described above, the square cylindrical body and the screw are set to have such strength that the fired bullet can penetrate, but these are reflected by the fired bullet and bounce off. It may be set to an appropriate strength.

  Furthermore, in each of the above-described embodiments, the anti-bounce structure is installed on the wall and the ceiling that are inclined toward the shooting side. However, the structure is not necessarily installed on the ceiling. Further, the present invention can be similarly applied to various places such as vertical walls and floors and inclined portions.

  Furthermore, in each of the embodiments described above, the bullet stopping material is made of a steel plate, but may be made of another material as long as it can withstand the impact of the shot bullet.

  Further, in each of the above embodiments, the rectangular sheet material is made of natural rubber. For example, a styrene butadiene rubber, neoprene rubber, a rubber chip that is formed into a sheet shape or a piece of cloth such as a flexible piece is used. If the strength is set so that the fired bullet can penetrate, it may be made of other materials.

  Furthermore, in each of the above-described embodiments, the bullet prevention material is divided into a plurality of rectangular sheet materials, but the bullet prevention material may be constituted by a single sheet material.

  Furthermore, in each of the above-described embodiments, a specific member is used as a fixing member. However, if the anti-bounce material can be disposed at a substantially constant distance with respect to the surface of the bullet-stopping material, such fixing is performed. There may be no member for use, and in that case, for example, each of the upper end portion and the lower end portion of the anti-bounce material may be fixed to the ceiling and the floor.

  Furthermore, in each of the above-described embodiments, each of the adjacent rectangular sheet materials is fixed by bonding the outer edges thereof with an adhesive. For example, the ends of the adjacent rectangular sheet materials are fixed to each other. May be fixed and connected by other methods such as screwing the parts together.

  FIG. 17 is a front view showing a bullet prevention structure according to a fifth embodiment of the present invention, FIG. 18 is a cross-sectional view of the XVIII-XVIII line shown in FIG. 17, and FIG. 19 is shown in FIG. It is an expanded sectional view of the XIX-XIX line.

  Note that the description is basically the same as that according to the third embodiment, and thus the difference will be mainly described.

  Referring to these drawings, in the bullet preventing structure 28 according to this embodiment, the shape of the fixing member 73 and the arrangement position of the rectangular sheet materials 23a and 23b with respect to the fixing member 73 are different. That is, each of the plurality of fixing members 73 of the bullet preventing material 21a is formed of a square columnar body made of wood, and is attached to the bullet stopping material 10a at equal intervals so that the longitudinal direction thereof is up and down. Yes. The horizontal joints of the rectangular sheet materials 23a and 23b are arranged on the fixing member 73, and the horizontal ends of the rectangular sheet materials 23a and 23b are formed by a plurality of screws 77a and 77b. Each is attached to a fixing member 73. The fixing member 73 is set to have a strength that allows screws 77a and 77b to be screwed in easily.

  In this way, by fixing each of the horizontal ends of the rectangular sheet materials 23a and 23b, the installation state of each of the rectangular sheet materials 23a and 23b is stabilized. Therefore, the rectangular sheet materials 23a and 23b adjacent in the horizontal direction or the vertical direction can be individually installed without being integrated. In that case, it becomes compact rectangular sheet material 23a, 23b at the time of installation, and handling becomes easy.

  Similarly to the third embodiment, the heads of the screws 77a and 77b are arranged so as not to protrude from the rectangular sheet materials 23a and 23b. Furthermore, if the strength of each of the fixing member 73 and the screws 77a and 77b is set so that the fired bullet can penetrate, the bullet will not be reflected and bounced unintentionally.

  FIG. 20 is a cross-sectional view showing a portion of the fixing member of the bullet preventing structure according to the sixth embodiment of the present invention, which corresponds to FIG. 19 of the fifth embodiment.

  Since the description is basically the same as that according to the fifth embodiment, the difference will be mainly described.

  Referring to the figure, in the bullet prevention structure 29 according to this embodiment, the fixing member is between the rectangular columnar body 83 and the rectangular columnar body 83 and each of the rectangular sheet materials 23a and 23b. The point which is comprised from the supporting members 84a and 84b which consist of the some installed rectangular veneer board differs. That is, the end portions of the support members 84a and 84b are attached to the rectangular columnar body 83 by the plurality of screws 78a and 78b, respectively. Thus, by dividing into a plurality of support members 84a and 84b, the handling becomes easier as compared with a support member made of, for example, a single plywood shown in FIG.

  The end portions of the rectangular sheet materials 23a and 23b are attached to the support members 84a and 84b by screws 79a and 79b, respectively. In addition, when assuming the repair method of the rectangular sheet materials 23a and 23b, which will be described later, the end portions of the rectangular sheet materials 23a and 23b are screwed into the rectangular columnar body 83 via the support members 84a and 84b. It may be attached by each of 79a, 79b. In that case, it is necessary to shift the positions of the screws 79a and 79b with the screws 78a and 78b for fixing the support members 84a and 84b in the vertical direction. The head positions of the screws 79a and 79b are the same as those of the fifth embodiment shown in FIG.

  Since the bounce prevention structure 29 is configured in this manner, the range in which the screws 79a and 79b can be attached to the ends of the rectangular sheet materials 23a and 23b increases, and these attachment locations are optional.

  Next, a repair method when the rectangular sheet materials 23a and 23b of the bullet prevention structure 29 are damaged will be described.

  FIG. 21 is a process diagram illustrating a repair work for the rectangular sheet material of the bullet prevention structure shown in FIG.

  First, referring to (1), if the bullet preventing structure 29 is continuously used, a broken portion 55 is generated in the rectangular sheet material 23. The broken portion 55 has a high probability of occurring on the rear side of a target (not shown) where, for example, the fired bullets are concentrated.

  Next, referring to (2), for example, a new rectangular sheet material 24 made of the same material as the rectangular sheet material 23 is placed on the outer side (the lower side in the figure) so as to cover the damaged portion 55 of the rectangular sheet material 23. ) To the support member 84 by a plurality of screws 86.

  At this time, the new rectangular sheet material 24 is disposed on the rectangular sheet material 23 having the damaged portion 55. Therefore, since the attachment location to the support member 84 by the screw 86 can be selected freely, the rectangular sheet material 24 can be reliably and easily fixed to the support member 84.

  Next, referring to (3), when the rectangular sheet material 24 is fixed to the support member 84 by the screws 86 via the rectangular sheet material 23 having the broken portions 55, the repair work of the rectangular sheet material 23 is performed. Complete.

  By repairing the rectangular sheet material 23 in this manner, for example, it becomes more efficient than the repair in which the damaged rectangular sheet material 23 itself is replaced with a new rectangular sheet material.

  Further, when the damaged portion 55 of the rectangular sheet material 23 is small, it may be repaired so as to fill the damaged portion 55 with a caulking material or the like instead of the above-described repair method. Further, after the damaged portion 55 is filled with a caulking material or the like, a new rectangular sheet material 24 may be attached to the outer surface.

  Furthermore, when the rectangular sheet material 24 used for repair is newly damaged, a new rectangular sheet material may be installed again on the outer surface of the rectangular sheet material 24 in the same manner as the above-described repair method.

  Furthermore, such a repair method can be similarly applied to the bulletproof structure according to the fourth embodiment shown in FIG.

  In the sixth embodiment, the support member is formed of a plurality of plywood plates. However, as long as it is a plate-like material having a strength through which the fired bullet can penetrate, for example, a thin steel plate or the like. It may be made of any material. Further, the support member may be formed of a single veneer plate.

Further, in the fifth and sixth embodiments described above, a rectangular columnar body is used as the fixing member. However, instead of the rectangular columnar body, for example, a rectangular cylindrical shape according to the third and fourth embodiments is used. The body may be used.
Furthermore, in the fifth and sixth embodiments described above, the quadrangular columnar body is made of wood, but if it is strong enough to be screwed with a screw, for example, steel, rubber or a rubber chip is used as a material. It may be formed of other materials such as a block material.

8 ... Bullet 10 ... Stopping material 11 ... Bulleted surface 20, 25, 26, 28, 29 ... Bounce prevention structure 21 ... Bounce prevention material 23 ... Rectangular sheet material 30, 40 ... H-shaped steel 32, 42 ... Flange 45 ... Square parts 71, 73 ... Fixing member 72 ... Square cylindrical body 74, 84 ... Support members 77, 79 ... Bis 81 ... Head 83 ... Square columnar body The same reference numerals in the drawings indicate the same or corresponding parts. .

Claims (9)

A bullet-proof structure,
A stop material,
A bouncing prevention structure comprising: a bouncing prevention material disposed at a substantially constant distance with respect to the surface of the bullet stopping material.   The bullet prevention structure according to claim 1, wherein the bullet face of the bullet-stopping material is arranged to be inclined toward the shooting side. A fixing member attached to the surface of the bullet-stopping material;
The bullet prevention structure according to claim 2, wherein the bullet prevention material is divided into a plurality of rectangular sheet materials, and each of the rectangular sheet materials is attached to the corresponding fixing member. The fixing member has at least a flange portion,
The said bullet prevention material is a bullet prevention structure of Claim 3 attached to the flange part of the said fixing member with a screw | thread. The fixing member includes an H-shaped steel cut perpendicular to the axial direction,
The H-shaped steel is
One of the flange portions is in contact with the bullet stopping material, and the other of the flange portions is in contact with the bullet preventing material,
The bullet prevention structure according to claim 4, wherein one of the flange portions is disposed so that only one corner portion in a rectangular surface in contact with the bullet stopping material is at an uppermost position. The fixing member includes a square cylindrical body,
The said bullet prevention material is a bullet prevention structure of Claim 3 attached to the said square cylinder body with a bis | screw. The fixing member includes a rectangular cylindrical body, and a plate-like support member provided between the rectangular cylindrical body and the anti-bounce material, and fixed to the rectangular cylindrical body,
The said bullet prevention material is a bullet prevention structure of Claim 3 attached to the said supporting member of the said fixing member with a bis | screw.   8. The bullet preventing structure according to claim 6, wherein the screw is screwed so that a head thereof does not protrude from the bullet preventing material.   9. The bullet prevention structure according to claim 6, wherein the fixing member and the screw are formed with a strength that allows a bullet to be fired.

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