NL2030807B1 - Bullet trapping device and ballistic plate for such a device - Google Patents
Bullet trapping device and ballistic plate for such a device Download PDFInfo
- Publication number
- NL2030807B1 NL2030807B1 NL2030807A NL2030807A NL2030807B1 NL 2030807 B1 NL2030807 B1 NL 2030807B1 NL 2030807 A NL2030807 A NL 2030807A NL 2030807 A NL2030807 A NL 2030807A NL 2030807 B1 NL2030807 B1 NL 2030807B1
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- bullet
- ballistic
- plates
- plate
- hooks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41J—TARGETS; TARGET RANGES; BULLET CATCHERS
- F41J7/00—Movable targets which are stationary when fired at
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
The invention relates to a bullet trapping device with a frame comprising a back wall, hooks attached to said frame and ballistic plates, each ballistic plate having a front surface for 5 contacting a bullet and an opposite rear surface, wherein the front surface has an upper edge and the rear surface has a lower edge, wherein the ballistic plates are removably attached to the frame via one or more of the hooks in such a manner that one or more upper edges of the ballistic plates, when seen in front view, are overlapped by one or more lower edges of adjacent plates and wherein, when seen in side view, the upper edges are spaced apart from the lower 1 O edges of the adjacent plates by a gap to allow passage of bullet fragments therebetween towards the back wall, and wherein the ballistic plates are spaced apart from the back wall to allow bullet fragments which have passed through the gap to fall down along the back wall. The invention further relates to a ballistic plate for such a bullet trapping device.
Description
Bullet trapping device and ballistic plate for such a device
The present invention relates to a bullet trapping device as may for instance be used in enclosed spaces such as a shooting range and/or in a training building. The invention further relates to a ballistic plate for such a bullet trapping device.
From CZ 20204757 a mobile system for training shooting and tactics in enclosed spaces is known. The system is provided with ballistic panels and comprises ballistic posts which are provided with at least one vertical row of hooks for hanging eyes placed on ballistic panels.
The lower edges of higher-placed ballistic panels contact and overlap upper edges of lower- placed ballistic panels. Each of the ballistic panels is formed by a layer of high-strength steel on which a rubber-covered absorbent layer is placed, the rubber-covered absorbent layer terminating 10 to 20 mm below the edge of the high-strength steel layer on the upper horizontal side of the ballistic panel.
After extended use of the known system, bullet fragments will typically accumulate in the rubber absorbent layer, causing bulges to form. When this occurs, generally the entire rubber layer of the panel has to be replaced and the steel layer underneath the rubber layer is to be inspected to ensure it still can stop bullets. Replacing the rubber layer is relatively expensive. It is an object of the invention to provide a bullet trapping device which at least partially overcomes this drawback. It is a further object of the invention to provide a ballistic plate for such a bullet trapping device.
To this end, according to a first aspect the invention provides a bullet trapping device comprising: a frame comprising a back wall; a plurality of hooks attached to said frame; a plurality of ballistic plates adapted for stopping a bullet, each ballistic plate having a front surface for contacting a bullet and an opposite rear surface, wherein the front surface has an upper edge and the rear surface has a lower edge; wherein the ballistic plates are removably attached to the frame via one or more of the hooks in such a manner that one or more upper edges of the ballistic plates, when seen in front view, are overlapped by one or more lower edges of adjacent plates and wherein, when seen in side view, the upper edges of the ballistic plates are spaced apart from the lower edges of the adjacent ballistic plates by a gap to allow passage of bullet fragments therebetween towards the back wall; and wherein the ballistic plates are spaced apart from the back wall to allow bullet fragments which have passed through the gap to fall down along the back wall.
The gap typically has a width of at least 1 cm, e.g. between 1 and 5 cm. A substantial portion of the bullet fragments may thus pass through the gap between the upper and lower edges of two vertically adjacent ballistic plates towards the back wall, and subsequently fall down along the back wall, rather than becoming lodged in the ballistic plate. A substantial portion of the bullet fragments can in this manner be collected behind the ballistic plates, rather than be caught in the ballistic plates.
The backwall generally comprises a metal plate, e.g. having a thickness of at least 0,5 cm, e.g. between 0,5 and 4 cm, which provides additional bullet stopping capability. Thus, even when one or more ballistic plates is removed, the device offers some form of protection against bullets. Except for possible slots for the hooks and/or the surface of the back wall is preferably substantially contiguous.
In order to facilitate collection of bullet fragments that have passed through the gap, the device may be provided with a tray arranged at a lower side of the device, which tray, when seen projection onto a horizontal plane, has an opening overlapping with the space between the ballistic plates and the back wall. Though typically the frame comprises further structural elements besides the back wall, the frame may instead be formed by the back wall as well.
The hooks are preferably attached to the back wall of the frame.
In an embodiment the device further comprises one or more bullet fragment absorption plates arranged to cover the front surfaces of the ballistic plates, wherein the bullet fragment absorption plates are adapted for allowing a bullet to pass therethrough in a direction towards the back wall and for substantially preventing passage of bullet fragments therethrough in a direction away from the back wall. Thus, bullet fragments that do not pass through the gap will generally be trapped between a bullet fragment absorption plate and a ballistic plate, or trapped in a bullet fragment absorption plate. In this manner the absorption plates help to prevent bullet fragments from ricocheting back towards the shooter.
In an embodiment the bullet fragment absorption plates are removable from the bullet trapping device and attachable to the bullet trapping device, without removing any of the ballistic plates from the hooks. This may be achieved for instance by attaching the bullet fragment absorption plates to the hooks, e.g. directly or via connector elements. Additionally or alternatively, the bullet fragment absorption plates may be attached to the frame and/or to lower edges of one or more of the ballistic plates, e.g. by means of form fitting joints such as dovetail joints. The absorption plates may thus easily be replaced in a cost effective manner.
Moreover, as in this embodiment the bullet fragment absorption plates are separate from the ballistic plates, the condition of the ballistic plates may easily be checked by simply moving one or more of the bullet fragment absorption plates out of the way to gain access to the front surface of one or more of the ballistic plates.
Preferably, each bullet fragment absorption plate can be moved independently from the ballistic plates while the bullet fragment absorption plate and the ballistic plates remain attached to the frame. In this manner, ballistic plates that were covered by a bullet fragment absorption plate can easily be inspected.
In an embodiment, some or all of the bullet fragment absorption plates have a front surface with an area which is at least 2 times the area of the front surface of any ballistic plate that 1s partially or completely covered by the bullet fragment absorption plate. As the invention allows bullet fragment absorption plates to be used that have very different dimensions than the ballistic plates, the bullet fragments absorption plates do not have to be accurately cut to the same size as the ballistic plates.
In an embodiment the bullet fragment absorption plates are flexible to allow the bullet fragment absorption plates to be bend away from an underlying ballistic plate for inspection of the ballistic plate. This also allows at least partial removal of bullet fragments that have been absorbed by the absorption plates, and/or which are held between a ballistic plate and an absorption plate. The bullet fragment absorption plates preferably comprise, or are made from a flexible elastomer or rubber material, e.g. comprising rubber granules that have been pressed and/or bonded together, or a solid sheet of an elastomeric of rubber material, such as natural rubber.
In an embodiment one or more of the bullet fragment absorption plates are provided at their top edges with one or more cutouts or recessed portions for hanging the bullet fragment absorption plate from the frame and/or from one or more of the ballistic plates. The bullet fragment absorption plates thus can easily be formed as slabs, e.g. as initially rectangular slabs, into which cutouts and/or recessed portions are provided. No additional attachment means need to be provided on the bullet fragment absorption plates, i.e. no hooks or the like need to be glued onto the bullet fragment absorption plates or attached to the plates in another way in order to be able to hang the bullet fragment absorption plates from the hooks or from one or more of the ballistic plates.
The bullet trapping device typically comprises multiple rows of bullet fragment absorption plates, each row extending substantially horizontally. In such a case, when seen in front view, for bullet fragment absorption plates which are partially covered by one or more ballistic plates, said one or more cutouts or recessed portions from which the bullet fragment absorption plates hang are preferably completely covered by said one or more ballistic plates.
In this manner the cutouts and/or recessed portions from which the bullet fragment absorption plates hang will be covered by one or more ballistic plates for bullet fragment absorption plates in all rows except the top most row.
In an embodiment the bullet fragment absorption plates have a first length and the ballistic plates have a second length, wherein the first length is at least 1,5 times greater than the second length. Due to the bullet fragment absorption plates being longer than the underlying ballistic plates, it can be ensured that the entire front surface of each ballistic plate is covered by one or more of the absorption plates. It is in this manner also possible to use fewer bullet fragment absorption plates than ballistic plates.
In an embodiment the front surfaces of the ballistic plates face upwards at an angle to the vertical, wherein said angle is between 5 and 15 degrees. This angle has been found allow many of the bullet fragments to pass through the gap.
In an embodiment the ballistic plates are arranged for deflecting most of the bullets fragments of a bullet through the gap. Thus, bullet fragments are substantially prevented from accumulating at a front side of the ballistic plates.
Preferably, the ballistic plates are arranged for deflecting most of the bullets fragments of a bullet that is horizontally incident on the ballistic plate upwards and through the gap. Since the bullet fragments mostly will deflect upwards between the ballistic plates and fall down along the back plate, instead of being deflected downwards, the fragments will remain loose and can easily be removed. In prior art downwards deflecting bullet traps, bullet fragments typically clog together to massive blocks which have to be chopped out and are difficult to remove.
In an embodiment, when seen in front view, the ballistic plates are arranged in rows, each row extending horizontally, wherein the ballistic plates of all rows except the top row are arranged to completely cover the plurality of hooks. The ballistic plates in this manner protect the hooks from being damaged by bullets.
In an embodiment the frame further comprises a top plate, wherein, when seen in top view, the top plate completely overlaps the distance between the back wall and the ballistic plates, in order to prevent bullet fragments that have passed through the gap from escaping the bullet trapping device past the top of the frame.
In an embodiment the front surface of each ballistic plate further comprises a first side edge and an opposite second side edge, wherein the plurality of ballistic plates are arranged in rows, each row extending substantially in horizontal direction, and wherein, when seen in front view, the first side edge of a ballistic plate in said row is behind an adjacent ballistic plate in said row, and a second side of a ballistic plate in said row is in front of another adjacent ballistic plate in said row. The overlapping side edges ensure that there is no gap between the side edges though which a bullet might pass.
In an embodiment the frame is provided with a plurality of slots for receiving therein 5 the plurality of hooks, wherein the hooks are detachably inserted in the slots. The hooks and slots together are preferably adapted for allowing the hooks to be mounted in the slots without the use of tools. Preferably, the plurality of slots is provided in the back wall.
In an embodiment the slots are through openings, wherein the hooks each comprise a leg portion adapted for being inserted through a through opening and for abutting a rear side of the back wall, the hooks further each comprising a shoulder portion adapted for abutting a front side of the back wall when the leg portion abuts the rear side, the hooks further each comprising an arm portion, for hanging thereon one or more of the ballistic plates, wherein when the leg portion and the shoulder portion abut the rear side and front side of the wall respectively while a downward force is exerted on the arm, this causes the hook to be maintained in a substantially stationary position relative to the wall. The hooks may thus be mounted to the back wall without requiring any tools, for instance in a manner similar to how the bracket assemblies are mounted in upright supports as described in US 4,098 480A.
Preferably, the hook is adapted for spacing the ballistic plate that hangs on the hook apart from the wall. This may be achieved for instance by providing a projection on the arm in such a manner that when a plate hangs from the arm it contacts the projection which keeps the ballistic plate spaced apart from the rear wall.
In an embodiment the front surface further comprises a first side edge and an opposite second side edge, wherein the plurality of ballistic plates are arranged in rows, each row extending substantially in horizontal direction, and wherein, when seen in front view, the ballistic plates in a first row are horizontally offset from ballistic plates in an adjacent second row. The horizontal offset helps to prevent a four-fold overlap of ballistic plates and typically is between one third and one fourth of the width of a ballistic plate. Thus, when there are at least two rows of ballistic plates, corner sections of three such plates may overlap as both side edges of plates within a same row may overlap, and as lower and upper edges of two ballistic plates in adjacent different rows may partially overlap.
In an embodiment, one or more of the ballistic plates are ballistic plates according to the second aspect of the invention.
According to a second aspect, the invention provides a ballistic plate for a bullet trapping device, said plate having a front surface for stopping a bullet, said front surface having an upper edge, a first side edge and an opposite second side edge; wherein the ballistic plate is adapted for stopping a bullet and for being removably attached to the bullet trapping device via two or more hooks that are attached to the bullet trapping device, wherein the first side edge is provided with a first cutout portion and the second side edge is provided with a second cutout portion, wherein the cutout portions are each adapted for at least partially receiving a respective hook of the plurality of said hooks therein in order to hang the ballistic plate from said respective hooks. The ballistic plate can thus be formed as a plate with cutout portions, without requiring any welds, screws or other attachment means for hanging the ballistic plate on the frame. The cutout portions may easily be produced using for instance a laser cutter. The ballistic plate preferably is a ballistic plate for a bullet trapping device according to the first aspect of the invention. When the ballistic plate hangs from both hooks in a suspended manner, the center of gravity of the plate will be below the hooks.
Generally, the ballistic plates will comprise, or be substantially made from a metal or metal alloy, or another bullet stopping material. Suitable bullet stopping materials conform to test levels 2 - 12 as indicated in “Table 1: Classification of test levels”, in the document “Allgemeine Prüfgrundlagen für ballistische Material -, Konstruktions- und Produktprüfungen” by Vereinigung der Prüfstellen für angriffshemmende Materialien und Konstruktionen, 12.05.2021 (VPAM APR 2006). The ballistic plates may for instance comprise or be made of
Ultra-high-molecular-weight polyethylene, e.g. as marketed under the name Dyneema) and
Spectra®, polyamides and para-polyamides, such as Twaron'”, Kevlar®. The ballistic plates may further comprise or be made of carbon fiber composite materials, and/or as steel or titanium and alloys thereof. The invention is of particular advantage when ballistic plates are used that are more susceptible to wear, as the inventions allows fast and easy replacement of such plates in the device.
In an embodiment, the front and rear side of the ballistic plate are parallel to each other, and the rear side is free from protrusions. This allows the ballistic panels to be particularly compact, and also considerably facilitates manufacturing the ballistic panels.
In an embodiment the first and second cutout portion provided near the upper edge of said panel and are each open ended towards their respective side edge. The ballistic plates can thus be attached to the hooks by sliding movement of the plate substantially along a plane parallel to the front surface of the plate. This may be done by positioning the plate relative to the hooks such that first an edge of only one of the cutout portions rests on a hook, and
” subsequently sliding the ballistic plate in a direction substantially parallel to its front surface until also an edge of the other of the cutout portions rests on another hook.
In an embodiment, when seen in front view, one of the cutout portions comprises a stepped portion with a first edge that is offset along the longitudinal direction of the plate from a second edge of the cutout portion, wherein the first and second edge are adapted for resting on an upward facing arm surface of a hook. Preferably, the first edge and the second edge are interconnected by an intermediate edge adapted for preventing sideways movement of the plate towards the second hook when the plate rests on the first and second hook.
In an embodiment, when seen in front-view, the first cutout portion extends further from the first side edge than the second cutout portion extends from the second side edge. This facilitates hanging the ballistic plate to from hooks by first moving the plate in such a manner that a first hook extends through the first cutout portion and partially supports the plate while a second hook is horizontally spaced apart from the second cutout portion, after which the plate is moved horizontally towards the second hook until the plate is supported by both the first and second hook.
In an embodiment the ballistic plates further is provided with a elongated through hole near its upper edge, said elongated through hole adapted for acting as a handle to facilitate carrying of the ballistic plate. A person can thus hold the plate by holding it by the handle. The elongated through hole typically has an area of at least 22 cm?, to allow a person to insert his or her fingers through the hole. The total weight of a single ballistic plate preferably is less than 30 kg, more preferably less than 25 kg, e.g. between 8 and 22 kg, in particular if the plates are to be carried by hand.
In an embodiment each ballistic plate 1s formed as a unitary plate. Each plate may thus be manufactured from a larger plate, into which one or more cutout portions and/or recessed portions are provided. No welding, gluing or other methods of attaching further elements to the plates are needed. This is particularly advantageous for the ballistic plates, as any welds are likely to form structurally weak portions of the ballistic plate which may fail when bullets impact the ballistic plate.
Preferably, each ballistic plates has a substantially uniform thickness, e.g. a thickness of between 0,5 and 4 cm.
In summary, the invention relates to a bullet trapping device with a frame comprising a back wall; hooks attached to said frame and ballistic plates, each ballistic plate having a front surface for contacting a bullet and an opposite rear surface, wherein the front surface has an upper edge and the rear surface has a lower edge; wherein the ballistic plates are removably attached to the frame via one or more of the hooks in such a manner that one or more upper edges of the ballistic plates, when seen in front view, are overlapped by one or more lower edges of adjacent plates and wherein, when seen in side view, the upper edges are spaced apart from the lower edges of the adjacent plates by a gap to allow passage of bullet fragments therebetween towards the back wall; and wherein the ballistic plates are spaced apart from the back wall to allow bullet fragments which have passed through the gap to fall down along the back wall.
The present invention will now be illustrated with reference to the drawing where
Figs. 1A and 1B respectively show a perspective view and a front view of a first embodiment bullet trapping device according to the invention;
Figs. IC and 1D respectively show a cross-sectional side view through plane I-C — IC of Fig. 1B, and a detail thereof in which some components have been omitted for reasons of clarity.
Figs. 2A and 2B respectively show a perspective view and an exploded side view of a second embodiment a bullet trapping device according to the invention;
Fig. 2C shows a perspective exploded view of the device of Figs. 2A and 2B;
Fig. 2D shows a detail of Fig. 2C;
Figs. 3A and 3B respectively show a perspective view of a ballistic plate according to the invention, together with hooks, and a front view of the ballistic plate;
Figs. 4A — 4C illustrate how a ballistic plate can be mounted on hooks of the device.
In the figures, like reference numbers are used to refer to like structures.
Figs 1A shows a perspective view of a first embodiment of a bullet trapping device 1 according to the invention. The device 1 comprises a frame 10 with a substantially vertically upright back wall 11. At its front side 12 the device is provided with a plurality of bullet fragment absorption plates 20a, 20b, 20c, 20d, 20e arranged in horizontally extending rows.
Absorption plates 20a of higher rows partially overlap absorption plates 20b of lower rows in a shingle like fashion. The bullet fragment absorption plates 20,21, which are flexible and in the example shown are made from rubber granules that have been pressed together, each have a length L1. The absorption plates 20a at the top row are provided with dove-tailed projections 21 which fit in corresponding recesses in a top plate 13 of the frame 11 to form a dove tail connection. Absorption plates 20a may be easily attached to the top plate 13 and removed therefrom without using any tools.
The frame 10 is further provided with wheels 14 so that the device can be moved to different positions, e.g. to different positions on a shooting range.
Fig. 1B shows a front view of the device 1.
Fig. 1C shows a cross-sectional view through plane IC-IC of Fig. 1B, in which besides the absorption plates 20a — 20e for absorbing bullet fragments, also ballistic plates 40a, 40b, 40c, 40d for stopping bullets can be seen. The absorption plates 20b,20c,20d in the rows below the top row 20a are attached to the back wall 11 by means of hooks 30. These hooks 30a — 30d, which partially extend through the absorption plates 20b — 20e, also support the ballistic plates 40a — 40d hanging therefrom.
The ballistic plates 40a — 40d are adapted for stopping bullets. Each of the ballistic plates has a back surface which faces the back wall 13 and is spaced apart therefrom, and an opposite front surface which faces upwards at an angle a of about 10 degrees to the vertical. In the example shown, the back wall 11 extends parallel to the vertical. The ballistic plates are arranged such that, when seen in front view, upper edges at the front surfaces of ballistic plates in a same horizontally extending row are overlapped by one or more lower edges at the rear surfaces of ballistic plates in the directly adjacent higher row. The side edges of ballistic plates within a row partially overlap as well.
Fig. 1D shows a detail of Fig. 1C, without the bullet fragment absorption plates and without some of the ballistic plates, to more clearly show how the ballistic plates are arranged.
In Fig. 1D a lower edge at a rear surface of ballistic plate 40b at the higher position partially overlaps an upper edge at a front surface of ballistic plate 40c in a row directly below the ballistic plate 40b, at least when the plates 40b, 40c are seen in front view.
In the side view of Fig. 1D, it can be seen that the front side upper edge and the rear side lower edge are spaced apart by a gap G which allows passage of bullet fragments towards the backwall 13. Further hanging from the hooks are connector elements 50c, 50d and 50e, which are adapted for connecting to the corresponding bullet absorption plates 20b, 20e, 20d and 20e. As shown in Fig. 1A, the bullet absorption plates 20a in the top do not hang from hooks, but are hang from the frame and are connected to the frame by means of a dove-tail connection 21.
The hooks 30a — 30d keep the ballistic plates at a distance from the back wall 11, such that bullets fragments that have passed through the gap G can fall down along the back wall.
As, when seen in front view, the hooks 30b — 30d and the connecting elements 50c, 50d are completely overlapped by the ballistic plates, these hooks and connecting elements are protected from being damaged by bullets.
When a bullet is fired at the bullet trapping device 1, the bullet will first pass through one or more of the bullet fragment absorption plates 20c,20d (shown in Fig. 1C) before impinging on ballistic plate 40c. When the bullet impacts the ballistic plate 40c, it typically shatters into multiple fragments, some of which are absorbed by the bullet fragment absorption plate 20c and/or 20d. Other fragments of the shattered bullet can pass upwards, through the gap
G, towards the back wall 11, and subsequently fall downwards, where they can be collected.
In the bullet trapping device of Figs. 1A - 1D, the flexible bullet fragment absorption plates 20a — 20e can be inspected and replaced independently from the ballistic plates 40a-40d.
Figs. 2A and 2B respectively show a perspective view and an exploded side view of a bullet trapping device 200 according to a second embodiment of the invention. The second embodiment is largely the same as the first embodiment, except in that here frame of the device is formed by its backwall 211 which can be mounted to a wall or to posts or uprights. For reasons of clarity, not all of the ballistic plates and bullet fragment absorption plates have been shown.
Fig. 2C shows an exploded perspective view of Fig. 2A, and Fig. 2D shows a detail of
Fig. 2C. As can be seen, the ballistic plates 40b are arranged in a sideways overlapping manner, and that lower edges of ballistic plates 40b overlap upper edges of ballistic plates 40c in a directly lower row.
Ballistic plates 40b hang from hooks 30b, which hooks are partially inserted into corresponding slots 230b in the backwall 211. Likewise, ballistic plates 40c hang from hooks 30c. However, the hooks 30c are horizontally offset with respect to the hooks 30b by a horizontal distance that is about one third of the width of a ballistic plate. In this manner it is prevented that at some locations, e.g. near a lower right corner of a plate 40b, there are four overlapping ballistic plates.
Figs 3A and 3B respectively show a perspective view and a front view of a ballistic plate according to the invention. In the embodiment shown, the plate is made from a slab of a metal alloy, and has a thickness of about 1,5 cm. The plate weighs about 25 kg, allowing it to be lifted manually, without the use lifting tools.
The plate 40, which may be used as a ballistic plate 40a -40e of Fig. 1A, has a front surface 41, the front surface having an upper edge 42, a first side edge 43 and an opposite second side edge 44. The plate further has a rear surface 45 with a lower edge 46. When ballistic plate 40b and 40c in the bullet trapping device of Fig. 2C correspond to the ballistic plate 40 of Figs. 3A and 3B, then the upper edge of ballistic plate 40c will be covered by a lower edge of ballistic plate 40b, and within a same row, side edges 43 of the plates will be covered by side edges 44, at least when seen in front view.
The plate 40 has a width W which is greater than a smallest distance X between two hooks 30 from which the plate is to hang. Each hook has comprise a leg portion 31 which is to be inserted through a slot in the back wall of the device, such that the leg portion 31 abuts a rear side of the back wall 11, 211. Each of the hooks further comprises a shoulder portion 32 adapted for abutting a front side of the back wall when the leg portion abuts the rear side. The ballistic plates hang from an arm portion 33 of each hook, such that when the leg portion and the shoulder portion abut the rear side and front side of the back wall respectively while a downward force is exerted on the arm, this causes the hook to be maintained in a substantially stationary position relative to the back wall. At the end each arm portion has an upward protrusion 35, for blocking movement of a ballistic plate off from the arm. When the plate 40 hangs from the hooks 30, the arm portions of the hooks extend through a respective first cutout 47 and second cutout 48 which are provided near the upper edge of the ballistic plate. The hooks are each further provided with a projection 34, for keeping the ballistic plate spaced apart from the back wall, and with a groove 36, for accommodating a connector element for the bullet absorption plate.
With reference to Fig. 3D, the first cutout portion 47 comprises a stepped portion that is formed by a first edge 47.1 and second edge 47.2 which is parallel to the first edge, wherein the first and second edge are interconnected by an intermediate edge which extends substantially normal to the first and second edge. The second cutout comprises a first edge 48.1 which is coplanar with the second edge 47.2 of the first cutout 47.
In the embodiment shown, the plate 40 has a length L2. This length is typically smaller than the length L1 of a bullet absorption plate of the device. An elongated opening 49 near the upper part of the plate has height and width sufficient to allow four fingers of a hand to pass therethrough. In the example shown, the width W2 of the elongated opening W2 is about 13 cm. The front surface 41 of the plate is planar and parallel to its rear surface 45, and the plate may be manufactured from slabs into which cutout portions 47,48 and 49 are cut using a laser cutter.
Figs. 4A -4C illustrate how a ballistic plate may be positioned to hang from two hooks 30 as will be present in a device of the invention. The cutout portions 47, 48 allow the ballistic plate to be attached to the hooks by sliding movement of the plate substantially along a plane parallel to the front surface of the plate. This may be done by positioning the plate relative to the hooks such that first only edge 47.2 of the first cutout portion 47 rests on a first hook, as shown in Fig. 4A. In this position, the plate can be rotated in is main plane until the second cutout portion 28 is aligned with the other hook 30, but is not supported thereon as shown in
Fig. 4B. Next, the ballistic plate is slid in a direction substantially parallel to its front surface and away from the first hook until an edge 48.1 of the cutout portion 48 rests on the other hook and edge 47.1 rests on the first hook. In this position, the stepped portion of the first cutout portion 47 prevents horizontal movement of the ballistic plate. The ballistic plate is thus held in place by a loose form fitting with the hooks, such that horizontal movement of the plate relative to the hooks without first moving the plate vertically is blocked.
The shape of the ballistic plate in combination with the hooks of the device allow an individual ballistic plate to be inserted into and removed from a row of overlapping ballistic plates.
Claims (21)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2030807A NL2030807B1 (en) | 2022-02-02 | 2022-02-02 | Bullet trapping device and ballistic plate for such a device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2030807A NL2030807B1 (en) | 2022-02-02 | 2022-02-02 | Bullet trapping device and ballistic plate for such a device |
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| Publication Number | Publication Date |
|---|---|
| NL2030807B1 true NL2030807B1 (en) | 2023-08-11 |
Family
ID=80933747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL2030807A NL2030807B1 (en) | 2022-02-02 | 2022-02-02 | Bullet trapping device and ballistic plate for such a device |
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| Country | Link |
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| NL (1) | NL2030807B1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4098480A (en) | 1976-10-26 | 1978-07-04 | Lozier Store Fixtures | Universal shelf system |
| DE102004010636A1 (en) * | 2004-03-02 | 2005-09-29 | SCHÜTZ, Andreas | Firing range projectile catchment device comprises at least vertical side parts, rear wall and connecting plates made of horizontal lamellas backwardly inclined |
| US20130187336A1 (en) * | 2011-12-25 | 2013-07-25 | Daniel Isaac DREIBAND | Round Absorbing Airsoft Target Trap Assembly |
| CZ2020457A3 (en) * | 2020-08-14 | 2021-09-29 | České vysoké učenà technické v Praze | Mobile system for shooting and tactics training in enclosed spaces |
| KR20210122471A (en) * | 2020-04-01 | 2021-10-12 | 이동욱 | Bullet head collecting apparatus for shooting range |
-
2022
- 2022-02-02 NL NL2030807A patent/NL2030807B1/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4098480A (en) | 1976-10-26 | 1978-07-04 | Lozier Store Fixtures | Universal shelf system |
| DE102004010636A1 (en) * | 2004-03-02 | 2005-09-29 | SCHÜTZ, Andreas | Firing range projectile catchment device comprises at least vertical side parts, rear wall and connecting plates made of horizontal lamellas backwardly inclined |
| US20130187336A1 (en) * | 2011-12-25 | 2013-07-25 | Daniel Isaac DREIBAND | Round Absorbing Airsoft Target Trap Assembly |
| KR20210122471A (en) * | 2020-04-01 | 2021-10-12 | 이동욱 | Bullet head collecting apparatus for shooting range |
| CZ2020457A3 (en) * | 2020-08-14 | 2021-09-29 | České vysoké učenà technické v Praze | Mobile system for shooting and tactics training in enclosed spaces |
Non-Patent Citations (1)
| Title |
|---|
| "Allgemeine Priifgrundlagen fur ballistische Material-, Konstruktions- und Produktprufungen", VEREINIGUNG DER PRIIFSTELLEN FUR ANGRIFFSHEMMENDE MATERIALIEN UND KONSTRUKTIONEN, April 2006 (2006-04-01) |
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