Safe fuse loading device with improved safety

Abstract

The present invention allows preemptive prevention of accidents of unintentional fuse detonation by equipping a rotor, which allows a fuse to be ignited by aligning detonation and connection pipes as the rotor rotates, with a double safety pin structure in which the restraint of the rotor is released only under bullet firing conditions that give rise to strong backward inertial force and rotational force. Additionally, unintentional harm to friendly forces area can be prevented by precisely adjusting loading time and increasing fuse safety distance via detent and gears and levers that adjust the rotor rotation time.

Description

Safety-enhanced fuse safety loading device

[0001] The present invention relates to a fuse safety loading device for a projectile, wherein a double safety pin structure is applied that is released only under the firing conditions of the projectile, and the safety distance is increased by delaying the loading time through a plurality of gears and levers.

[0002]

[0003] Since the safety mechanism of the fuse in ammunition, a military weapon, can become engaged due to vibrations during transportation or shocks during loading, and there is a possibility that the fuse and the bullet may explode if the safety mechanism is engaged, technology is required to prevent such accidents in advance.

[0004] In general, the safety loading device of a fuse applied to ammunition aligns its explosive sequence and enables detonation through the reverse inertial force and rotational force generated when the bullet is fired.

[0005] In addition, even if the fuse is fired and the safety mechanism is reliably loaded, a technology to delay the loading time is required because an explosion faster than expected can cause damage to friendly areas.

[0006] Therefore, it is necessary to disclose technology for a safety loading device with enhanced safety, as well as technology for precisely adjusting the loading time and increasing the safety distance.

[0007] [Prior Art Literature]

[0008] [Patent Literature]

[0009] 1. Korean Registered Patent No. 10-1695357 (Registered Jan. 5, 2017)

[0010]

[0011] The present invention aims to provide technology related to a safety loading device that enhances safety compared to existing mechanical safety loading devices by applying a double safety pin structure and increasing the safety distance.

[0012]

[0013] According to an embodiment of the present invention, a fuse safety loading device may be provided, comprising: an electric detonator provided inside a fuse; a connecting tube provided on a rotatable rotor and connected to the detonator; a double safety pin part including a safety pin support that prevents rotation of the rotor and a safety pin that fixes the safety pin support; a first gear assembly coupled to the rotor gear and a second gear assembly in contact with the first gear assembly, a winding gear that adjusts the loading time, and a lever.

[0014] The above safety pin may include: a safety pin that fixes the safety pin support by vertically crossing it, with its central portion engaging with a groove in the safety pin support and having a groove in its upper portion; a spherical safety ball provided inside a hole that engages with the groove in its upper portion; and an inertia pin that securely fixes the safety ball to the safety pin.

[0015] A spring may be provided at the lower end of each of the above-mentioned safety pin and inertia pin, and the elastic modulus of the spring may be such that the inertia pin spring is greater than the safety pin spring.

[0016] Additionally, according to an embodiment of the present invention, a fuse safety loading device may be provided, further comprising: a first gear assembly consisting of a first pinion and a first gear that engage with a gear formed on the outer surface of the rotor; a second gear assembly consisting of a second pinion and a second gear that mesh with the first gear; a winding gear that meshes with the second pinion; and a lever that contacts the winding gear.

[0017] A fuse safety loading device may be provided that further includes a detent for fixing the rotor, wherein the detent is coupled to a detent pin and the other end is fixed to a ring member that hooks onto a ring shaft, and a locking protrusion is coupled to a groove formed on the outer surface of the rotor to fix the rotor.

[0018]

[0019] The present invention enables detonation by aligning the detonator and the connecting tube as it rotates, and by providing a double safety pin structure in which the rotor's restraint is released only under firing conditions where reverse inertial force and rotational force are generated, it is possible to prevent accidents in which the fuse explodes unintentionally.

[0020] In addition, by extending the loading time through multiple gears, levers, and detents that regulate the rotor's rotation time, the safety distance can be increased, thereby preventing unexpected damage to friendly forces.

[0021]

[0022] FIG. 1 is an internal cross-sectional view of a fuse according to an embodiment of the present invention, and

[0023] FIG. 2 is a perspective view of a fuse safety loading device according to an embodiment of the present invention, and

[0024] Figures 3 through 7 sequentially show the process of releasing the constraint of the rotor through the cross-section of AA shown in Figure 2.

[0025]

[0026] The advantages and features of the embodiments of the present invention, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Throughout the specification, the same reference numerals refer to the same components.

[0027] In describing the embodiments of the present invention, specific descriptions of known functions or configurations will be omitted if it is determined that such detailed descriptions could unnecessarily obscure the essence of the invention. Furthermore, the terms described below are defined in consideration of their functions in the embodiments of the present invention, and these definitions may vary depending on the intentions or practices of the user or operator. Therefore, such definitions should be based on the content throughout this specification.

[0028] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0029]

[0030] FIG. 1 is an internal cross-sectional view of a fuse according to an embodiment of the present invention, FIG. 2 is a perspective view of a fuse safety loading device according to an embodiment of the present invention, and FIG. 3 to 7 sequentially show the process of releasing the restraint of the rotor through the cross-section of AA shown in FIG. 2.

[0031] FIG. 1 is an internal cross-sectional view of a fuse according to an embodiment of the present invention. Referring to FIG. 1, there is a full-explosion tube (140) provided inside the fuse, and a connecting tube (130) is shown at the upper end of the full-explosion tube (140). When the electric detonator (110) is detonated by a detonation signal generated according to the mode in which the detonator (120) is aligned with the connecting tube (130) and loaded, the detonation occurs in the order of detonator (120) - connecting tube (130) - full-explosion tube (140).

[0032] As illustrated in FIG. 2, the detonator (120) is provided on a rotatable rotor (100), and the safety device of the rotor (100) is released by the reverse inertia force and rotational force generated as the bullet is fired, and the rotor (100) rotates around the rotation axis (101) so that the detonator (120) is aligned.

[0033] The safety loading device must include two or more physically independent safety elements, and is equipped with a safety pin support (240) that engages with the lower outer groove of the rotor (100) to prevent rotation of the rotor (100), and has a double safety pin (200) structure that interlocks and fixes the safety pin support (240). Here, the safety pin (210) can fix the safety pin support (240) by vertically crossing it.

[0034] The double safety pin (200) structure consists of a safety pin (210), a safety pin support (240), a safety ball (220), and an inertia pin (230). The safety pin and the inertia pin are released only when a strong backward inertia force is generated while the projectile is fired, and the safety pin support (240) can be released only when the safety pin and the inertia pin are released. The safety pin support (240) is released only when a condition generating rotational force is added, and the detonator (120) can be aligned as the rotor (100) rotates.

[0035] By applying a double safety pin structure, the safety loading device is not engaged due to shocks and vibrations that may occur during the transport or handling of ammunition, or shocks generated during ammunition loading; instead, the safety loading device is engaged solely by the reverse inertia and rotational force generated during ammunition firing.

[0036] In FIGS. 3 to 7, the process of releasing the safety pin (210), safety ball (220), inertia pin (230), and safety pin support (240) under conditions where the bullet is fired is shown.

[0037] First, let us explain how the rotor (100) is fixed due to the combined relationship of these when the bullet is not fired.

[0038] The safety pin support (240) is made of a cylindrical rod, so that one side is coupled to a groove at the bottom of the body of the rotor (100), and the other side is shown protruding in the drawing. A groove is formed along the circumferential surface of the other side, so that the safety pin support (240) can be fixed by engaging the central part of the safety pin (210) with this groove.

[0039] The safety pin (210) can also basically have a cylindrical structure and has a groove carved into the upper part, so that a spherical safety ball (220) is assembled into this groove.

[0040] Here, a second safety pin (230) having a cylindrical structure can secure the safety ball (220) by pressing it against the safety ball (220).

[0041] Accordingly, as shown in FIG. 3, the structure is formed by sequentially connecting and fixing the safety pin support (240) to the inertia pin (230), and if this structure is not released, the safety pin support (240) that restrains the rotor is not released, and thus the rotor (100) does not rotate.

[0042] Now, looking at the sequence in which the safety device is released as the bullet is fired and a strong backward inertia force is generated, as illustrated in FIG. 4, the inertia pin (230) may be pushed backward first by the strong backward inertia force. Since springs may be provided at the lower ends of the safety pin (210) and the inertia pin (230), the inertia pin (230) compresses the spring and the upper part supporting the safety ball (220) moves down, causing the safety ball (220) to be pushed and moved into the space occupied by the inertia pin (230).

[0043] As shown in FIG. 5, as the safety ball (220) that was fixing the safety pin (210) moves, the safety pin (210) can also move down by compressing the spring due to the reverse inertia force.

[0044] Referring to FIG. 5, as the safety pin (210) descends, the upper part of the safety pin (210), which had a groove carved to secure the safety ball (220), is positioned in the groove of the safety pin support (240), thereby creating a condition where the safety pin support (240) can be released from the safety pin (210).

[0045] When the projectile is initially fired, a large backward inertia force is generated, and subsequently, when a forward inertia force is generated, it can return to its original position due to the elastic restoring force of the spring compressed at the bottom of each pin.

[0046] Accordingly, by making the spring elasticity coefficient of the inertia pin (230) greater than that of the safety pin (210), the inertia pin (230) rises before the safety pin (210), thereby preventing the safety ball from rising and thus preventing the safety pin (210) from rising and the safety pin support from being released.

[0047] As illustrated in FIG. 6, as the inertia pin (230) rises first and pushes the safety ball (220) away, the safety pin (210) is not returned to its original position and remains fixed in the lowered state, so the restraint of the safety pin support (240) is maintained.

[0048] Meanwhile, since the safety pin support (240) is positioned perpendicular to the safety pin (210), the rotor (100) cannot be released from restraint by the reverse inertia force, but as shown in FIG. 7, the safety pin support (240) is pushed out by the rotational force generated as the bullet rotates, allowing the rotor (100) to rotate together. Thus, the safety pin support (240) is configured to block the rotational direction of the rotor (100), and since the safety pin (210), safety ball (220), and inertia pin (230) fix the direction perpendicular to this rotating plane, a double safety device is provided.

[0049] Now, a configuration is needed to control the loading time during which the bullet is fired and the detonator (120) and the connector (130) are aligned. If the loading time is too short, there is a risk that the bullet will explode in friendly territory, so it is necessary to delay this loading time.

[0050] Accordingly, a gear part that is coupled to a gear (102) formed on the outer surface of the rotor (100) is installed, and the loading time can be adjusted by delaying the rotation of the rotor (100) by contacting a pellet (350) assembled on the lever (340).

[0051] To control this more precisely, as shown in FIG. 2, the loading delay unit (300) for delaying the loading time may include a No. 1 gear assembly (310), a No. 2 gear assembly (320), a winding gear assembly (330), and a lever (340).

[0052] The first gear assembly (310) consists of a first pinion and a first gear, and the first pinion can mesh with a gear (102) formed on the outer surface of the rotor (100).

[0053] The second gear assembly (320) consists of a second pinion and a second gear, and the second pinion can mesh with the first gear.

[0054] The winding gear (330) can be engaged with the pellet (350) of the lever (340).

[0055] The lever (340) is made of a pellet (350) that contacts the winding gear (330), and since it can be spaced apart from the central axis, the contacting winding gear (330) can rotate even when caught on the pellet (350).

[0056] Two pellets (350) can be installed, and since weight and center of gravity affect the delay time, they can be designed to match the target delay time.

[0057] According to an embodiment of the present invention, two pellets (350) can be arranged with respect to the central axis of the lever (340) to engage with the winding gear (330).

[0058] In addition, since the delay time can be precisely designed by adjusting values ​​such as the module and the number of teeth according to the design specifications of the first gear assembly (310), the second gear assembly (320), and the winding gear assembly (330), the present invention does not limit the number of gears or the module.

[0059] Meanwhile, the detent (400) fixes the rotor (100) and, when rotational force exceeding a certain level is generated, flips outward to release the restraint of the rotor.

[0060] To explain this in detail, one side of the detent (400) is connected to a rotation axis (420) and the other side is connected to a ring member (440) that is hooked onto a ring axis (430), and a hooking protrusion (410) is connected to a groove formed on the outer surface of the rotor (100) to fix the rotor (100).

[0061] In order for the connection of the hooking protrusion (410) to be released from the groove, a force sufficient to move the ring member (440) that is hooked onto the other ring shaft (430) of the detent (400) must be applied. The magnitude of this force can be determined according to the strength of the ring member (440).

[0062] Accordingly, the fuse safety loading device according to an embodiment of the present invention can prevent accidents in which the fuse explodes unintentionally by providing a double safety pin structure in which the rotor, which aligns the detonator and the connecting tube to cause an explosion as it rotates, is released from restraint only under projectile firing conditions in which strong reverse inertial force and rotational force are generated.

[0063] In addition, the loading time can be precisely controlled through multiple gears, levers, and detents that regulate the rotor's rotation time, thereby increasing the safety distance and preventing unexpected damage to friendly areas.

[0064]

[0065] Although various embodiments of the present invention have been presented and described in the above description, the present invention is not necessarily limited thereto, and those skilled in the art will understand that various substitutions, modifications, and changes are possible within the scope of the technical concept of the present invention.

[0066] [Explanation of the symbol]

[0067] 1 : New priest

[0068] 10: Fuse safety loading device

[0069] 100 : Rotor

[0070] 110 : Electric detonator 120 : Detonator

[0071] 130 : Connector 140 : Bombardment

[0072] 200: Double safety pin structure

[0073] 210 : Safety pin 220 : Safety ball

[0074] 230 : Inertia pin 240 : Safety pin support

[0075] 300 : Loading delay unit

[0076] 310: Gear Assembly No. 1 320: Gear Assembly No. 2

[0077] 330 : Winding gear assembly 340 : Lever

[0078] 350 : Pellet

[0079] 400 : Detent

[0080] 410 : Locking protrusion 420 : Rotating shaft

[0081] 430 : Ring axis 440 : Ring member

Claims

1. A bomb tube (140) equipped with gunpowder inside a fuse (1); A detonator (120) provided on a rotatable rotor (100) and connected to a connecting tube (130); A double safety pin structure (200) including a safety pin support (240) that prevents rotation of the rotor (100) and a safety pin that fixes the safety pin support (240); and A loading delay unit (300) that adjusts the loading time by contacting a pellet (350) with a gear (102) coupled to the gear of the rotor (100); A fuse safety loading device including 2. In Claim 1, A fuse safety loading device characterized by the above safety pin fixing the above safety pin support (240) by vertically crossing it.

3. In Claim 2, The above safety pin is, A safety pin (210) having a central portion that engages with a groove in the above safety pin support (240) and a groove in the upper portion; A spherical safety ball (220) provided inside the hole, engaging with the groove at the top of the safety pin (210); A fixing pin (230) that securely fastens the safety ball (220) to the safety pin (210); A fuse safety loading device including additionally.

4. In Claim 3, A fuse safety loading device further comprising a spring at each lower end of the safety pin (210) and the fixing pin (230).

5. In Claim 4, A fuse safety loading device characterized by the elastic modulus of the above spring being greater than that of the inertia pin (230) than that of the safety pin (210).

6. In Claim 1, The above gear part is, A first gear assembly (310) comprising a first pinion that engages with a gear (102) formed on the outer surface of the rotor (100) and a first gear; A fuse safety loading device comprising: a second gear assembly (320) consisting of a second pinion meshing with the first gear and a second gear; a winding gear (330) meshing with the second pinion; and a lever (340) spaced apart from a central axis to allow the winding gear (330) to rotate, the lever comprising a pellet (350) in contact with the winding gear (330).

7. In Claim 1, Further including a detent (400) that fixes the rotor (100), One side of the detent (400) is connected to a rotation axis (420) and the other side is connected to a ring member (440) that is hooked onto a ring axis (430), and a locking protrusion (410) is connected to a groove formed on the outer surface of the rotor (100) to fix the rotor (100) in a fuse safety loading device.

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