SYSTEM, IN PARTICULAR HAND GRENADE

Abstract

In order to improve safety, particularly during transportation and/or storage, a system (10) is proposed which at least comprises a housing (13) an explosive (3) held therein which is initiated by a blasting cap (1), wherein a sleeve insert (2, 2) in the housing (13) makes it possible for the blasting cap (1) to be removed from the explosive (3), in that the blasting cap (1) in the sleeve insert (2, 2) is height-adjustable, so that the position of the blasting cap (1) relative to the explosive (3) can be changed. The system (10) may include a fuse head (11) which at least comprises a primer cap and possibly a delay line (14). The blasting cap (1) may be an integral part of the fuse head (11) and insulated therewith on the base.

Claims

1. A system, at least having a housing and the explosive held therein and also having a blasting cap, characterized by a sleeve insert in the housing, wherein the blasting cap is height-adjustable in the sleeve insert.

2. The system according to claim 1, characterized by a fuse head at least comprising a primer cap and possibly a delay line.

3. The system according to claim 2, wherein the housing has a receiving means for the fuse head.

4. The system according to claim 2, wherein the blasting cap on the base of the fuse head, possibly on the base of the delay line, is insulated therewith.

5. The system according to claim 1, wherein the sleeve insert delimits the explosive.

6. The system according to claim 1, wherein the sleeve insert has a hollow or empty space in which a separating medium or separating means is introduced.

7. The system according to claim 1, wherein the sleeve insert has a preferably cylindrical body with a base and an opening opposite this base.

8. The system according to claim 7, wherein the sleeve insert has a shoulder in the form of a constriction which is preferably introduced in the lower end region of the sleeve insert.

9. The system according to claim 8, wherein the shoulder is conical, truncated conical, pyramid-shaped or cylindrically shaped.

10. The system according to claim 1, wherein the housing, the sleeve insert and the explosive form a modular subassembly.

11. The system according to claim 3, wherein the fuse head, the primer cap, possibly the delay line and the blasting cap form a modular subassembly.

12. The system according to claim 2, wherein a pressure element is attached between the fuse head and the housing.

13. The system according to claim 1, wherein the system is a hand grenade.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The invention is to be more closely illustrated with the help of exemplary embodiments and the drawing. The basic principle of the invention is considered more closely in this case. Sizes of the individual components, or the like, cannot be inferred from these exemplary embodiments. In the figures:

[0034] FIG. 1 shows a system according to the invention,

[0035] FIG. 2 shows the fuse head from FIG. 1,

[0036] FIGS. 3a, 3b and 3c show a sketched depiction of a first embodiment of the invention,

[0037] FIGS. 4a, 4b and 4c show a sketched depiction of a second embodiment of the invention.

DETAILED DESCRIPTION

[0038] In FIG. 1, a systemin this case a hand grenadeis identified using 10. The system 10 at least comprises a fuse head 11. A lever 12, for example a rocker lever, may be attached to the fuse head 11. The system 10 also has a housing 13. The housing 13 has an opening 13.1 for receiving the fuse head 11. The fuse head 11 can be screwed into the housing 13, for example. At least the (screw) connection between the fuse head 11 and the housing 13 is based on a material made of plastic.

[0039] FIG. 2 shows the fuse head 11 from FIG. 1. The fuse head 11 comprises a primer cap which is not depicted in greater detail and has at least one blasting cap 1 on the base side. In a preferred embodiment, the fuse head 11 also has a delay line which can be created in a manner known in the art by a delay composition in a delay composition receiving means 14, e.g. a delay tube. The blasting cap 1 can then be attached to this delay tube 14 on a lower base surface. The blasting cap 1 is preferably insulated with the base area of the delay tube 14. In the region of the blasting cap 1, a pressure element 15, e.g. a pressure spring, is attached on the circumferential side below the fuse head 11.

[0040] The housing 13 of the system 10 is filled with an explosive 3. The housing 13 also receives a sleeve insert 2. The explosive 3 can be delimited by the sleeve insert 2.

[0041] The deflagration limit of the explosive 3 used determines the necessary combustion pressure which is required in order to create a necessary deflagration wave to initiate the explosive 3. Accordingly, the detonation transmission can be weakened by suitable separating media and/or spacings, so that an initiation of the explosive 3 does not take place. Using these measures, individually or in combination, an interruption or weakening of the detonation wave acting on the explosive 3 can be created. In this way, a safe state can also be set.

[0042] In a first embodiment according to FIGS. 3a-3c, the sleeve insert 2 is configured cylindrically with a flat base 6 and has an opening 8 opposite this base 6. The sleeve insert 2 has a hollow or empty space 5. A separating medium or separating means 4, e.g. air, can be introduced in said space. The blasting cap 1 can be moved into and out of the sleeve insert 2. The blasting cap 1 is arranged within the sleeve insert 2 in a height-adjustable manner for this purpose.

[0043] The safe state of the system 10 is depicted in FIG. 3a. The blasting cap 1 is located outside the sleeve insert 2 and is not therefore in contact with the explosive 3. An initiation of the blasting cap 1 by the delay charge does not lead to an initiation of the explosive 3. A deflagration wave which forms cannot reach the explosive 3. This variant has the advantage that an unwanted initiation of the explosive 3 can be definitively precluded.

[0044] FIG. 3b shows a first armed or live state of the system 10. The blasting cap 1 is located at least partially in the sleeve insert 2. The blasting cap 1 in this case interacts functionally in a known manner with the explosive 3 in the system 10. An ignition of the blasting cap 1 by the delay charge causes the initiation of the explosive 3 during closure of the ignition chain.

[0045] Optimization of the initiating power is achieved when the blasting cap 1 has been completely moved into the sleeve insert 2 (FIG. 3c).

[0046] FIGS. 4a-4c show a further embodiment. A lower end region of the sleeve insert 2 has a shoulder 7 in the form of a constriction. A base 6 of the sleeve insert 2 has a smaller diameter than the sleeve insert 2 itself. In order to centre the blasting cap 1 in the sleeve insert 2, this tapering or constriction can be used at least to support the orientation within the sleeve insert 2. The constriction 7 may have a uniform geometric shape like the sleeve insert 2, but it may also differ therefrom. The blasting cap 1 and at least the end region, i.e. the constriction 7 of the sleeve insert 2 should, however, be adapted to one another in terms of shape.

[0047] If there is no longer an anticipated use, the system 10 can be changed from the live, armed state back into a safe, disarmed state. For this purpose, the blasting cap 1 is moved from the active region of the explosive 3, from the sleeve insert 2, 2.

[0048] The adjustment of the blasting cap 1 can take place through movement of the fuse head 11. This can be achieved through a rotation of the fuse head 11, for example. If the fuse head 11 is turned to the right, for example, the blasting cap 1 moves in the direction of the sleeve insert 2, 2. A rotation to the left then once again moves the blasting cap 1 out of the sleeve insert 2, 2 accordingly. The connection between the fuse head 11 and the housing 13 in this case is preferably achieved via a thread based on plastic on the fuse head 11 and on the housing 13.

[0049] The pressure element 15 which is installed in addition is used to ensure the separation of the blasting cap 1 and, where necessary, the delay element (14) from the explosive 3, particularly when under the influence of heat caused by fire, etc. The functionality and strength of plastics cannot be guaranteed when under the influence of intense heat. If the plastic, and therefore the connection between the housing 13 and the fuse head 11, is softened under the influence of heat and the pressure element 15 presses the fuse head 11 out of the housing 13, the blasting cap 1 should be located in the live position or in the live state.

[0050] In a preferred embodiment, the housing 13, the explosive 3 and the sleeve insert 2, 2 form a modular, self-contained unit 20 or 20, in which the fuse head 11 can be received. The fuse head 11 may likewise form a modular unit 21 with the primer cap, the blasting cap 1 and possibly the delay line 14.