JPH0412394Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a warhead fuse for training bullets of high-velocity energy bullets.

(Prior art and its problems) Normally, when a high-velocity energy bullet hits a target point, for example when shooting an armor-piercing bullet with a reduced caliber sabot, it penetrates the target's armor or buries deep into the soil due to its velocity energy. Stop.

However, if the bullet does not hit the target point, or if it does hit but does not stop depending on the situation at the point of impact and continues to fly, the remaining kinetic energy is large, so There was a problem in that there was a risk of unexpected damage to the person's property.

(Purpose of the invention) This invention was proposed in view of the above points, and its purpose is to take into consideration the dangers during training shooting, and to shoot at the point of impact or within a certain firing distance after the scheduled impact time has elapsed. automatically destroys the bullet shell and interrupts subsequent flight to prevent damage caused by ricochet, etc.
The purpose of the present invention is to provide a warhead fuse for training ammunition with improved safety.

(Means for Solving the Problems) That is, in order to achieve the above object, the present invention provides a warhead fuze for training bullets for high-velocity energy bullets. rechargeable power supply circuit,
This power supply circuit drives the CR time base voltage of the time base C _T R _T circuit consisting of a capacitor C _T and a resistor R _T , and compares this voltage with a separately set reference voltage to determine the relationship between the two. When the trigger voltage is reached, a trigger voltage is generated through a comparator, and the timer circuit generates the trigger voltage within a certain distance preset according to the target distance at the time of shooting, and the trigger voltage of this timer circuit is charged in advance. An ignition circuit that discharges the charged energy of the detonator ignition capacitor, ignites the electric detonator and the explosives connected to it, such as the conductor and transfer charge, thereby destroying the bullet shell and making it impossible to fly thereafter. The main point is to be prepared.

(Function) In the present invention, a timer circuit is provided in the ignition circuit of the fuse so that the bullet shell is automatically destroyed at the point of impact or after the scheduled time of impact has elapsed after firing.

In addition, in the event that a training bullet hits the target point, there is a possibility that it will not stop at that point and ricochet again due to an abnormality in the point of impact or the angle of impact, so an inertial type A switch is provided, the deceleration upon impact is detected, the switch is activated, and an ignition circuit is formed separately to ignite the detonator.

Furthermore, when operating the fuze, a mechanical shutter is installed between the electric detonator and the connected gunpowder, so that even if the electric detonator accidentally ignites, it will not ignite during handling up to firing and inside the gun cavity. This prevents energy from being transmitted to the connected gunpowder, and after firing, the shutter position is changed using the impact of the firing and an internal drive spring, and the fire between the detonator, conductor, and carrier charge is transmitted through the primer. I'm trying to get through the road.

(Embodiments) Preferred embodiments of the present invention will be described below with reference to the drawings.

Fig. 1 shows the first embodiment of the present invention, and Fig. 1 shows the internal structure of a training ammunition warhead fuse 1, which includes a setback generator 2, a fuse ignition circuit 3, a safety A mechanism 4, a conductor explosive 5, a transfer explosive 6, etc. are built-in. Note that 7 in the figure is a safety pin, which is used to prevent the setback generator from operating due to shocks such as dropping during handling.

B shows a setback power generation system power supply circuit of the setback generator 2. In this power supply circuit, a power generation coil 9 is provided in a permanent magnet 8, and a crimping spring 10 is inserted into the power generation coil 9 due to the impact at the time of firing. The plunger 11 is configured to be movable against the force, and starts generating electricity due to the impact at the time of firing, and rectifies the voltage through a rectifier circuit D connected to the electricity generating coil 9 to create an energy storage capacitor.
It is configured to charge _C1 .

C shows the ignition circuit 3 used in the present invention, which can be roughly divided into the power supply circuit 12, the timer circuit 13 to which the output of the power supply circuit 12 is sent out and which generates a trigger voltage after a predetermined period of time has elapsed, and the timer circuit It is composed of a block including an ignition circuit 14 to which a trigger voltage from a circuit 13 is applied to operate an electric detonator A.

In operation, when a training bullet is fired, if the power supply circuit 12 is a setback generator, it starts generating electricity due to the impact at the time of firing, and the voltage is transferred to the rectifier circuit D and the capacitor C. ₁ and diode D ₁ , etc., and immediately charge the ignition capacitor C ₂ .

In addition, at the same time as the above power supply starts charging the ignition capacitor _C2 , the time base in the timer circuit 13 is activated.
Driving of the C _T R _T circuit also starts. This time base
The output of the _{CTR T} circuit is compared with a preset reference voltage of the comparator IC, and when a certain value is reached, a trigger voltage is sent from the comparator IC to the thyristor Th provided in the firing circuit 14. That is, the _{CTR T} drive and reference voltage settings are adjusted in the comparator IC, and the time T from firing to trigger generation is set to T=t+Δt with respect to the scheduled bullet impact time t during training shooting. Here Δt is T,
Taking various errors in t into consideration, the time is set to a small value within a range that does not result in a negative time. Incidentally, it is possible to set a plurality of T's in advance corresponding to t at the time of shooting, and select an appropriate T from them by an operation before firing.

This selection operation is performed, for example, by a time selection mechanism exposed outside the fuse. As a result, even if the training bullet does not hit the intended landing point during training and attempts to continue flying, it will be able to continue flying at a certain distance in the air.
It will automatically destroy and the bullet shell will scatter, making it possible to reliably interrupt further flight.

In addition, in the firing circuit 14, the thyristor Th
A switch IS is connected in parallel to a series circuit of an ignition capacitor C ₂ and an electric detonator A, which are connected in parallel to the ignition capacitor C 2 and an electric detonator A. This switch IS consists of a relatively sensitive inertial switch, and takes into account the possibility that even if the training bullet hits the target point, it will not stop there but will jump and continue flying further, so it is fully trained. Even if the bullet does not stop, the switch is activated by detecting the deceleration to the extent that it changes direction and continues flying. When the bullet hits, this switch IS closes, and the ignition capacitor C ₂ , switch IS, and electricity are activated. A closed circuit is formed for the detonator A, thereby igniting the electric detonator A and destroying the shell, thereby making it possible to reliably prevent damage caused by ricocheting, etc.

Note that d shows an example of the configuration of the switch IS, which has a substantially cylindrical shape with a bottom and moves against a spring 17 at one end inside a conductive metal case 16 provided with a lead wire 15. A freely movable contact member 18 is provided, and a lead wire 2 is connected to the opening side of the metal case 16 via a substantially ring-shaped insulating member 19.
A fixed contact member 21 to which 0 is connected is provided, and a movable contact member 18 is provided when the bullet changes direction.
moves and the contact closes.

Figures 2A to 2C show a second embodiment of the present invention. In this embodiment, the power supply circuit used for the warhead fuse 1 for training ammunition shown in A is an external charging system configured as shown in B. It is unique in that it is made of materials. That is, 22 in the figure is an external charging device, L
is the energy receiving coil, D is the rectifier diode,
C ₁ is an energy storage capacitor, and S is a launch detection switch. If the power source is this external charging power source, charge the power supply capacitor C ₁ before launch, and use the impact of the launch to activate the power supply. A switch S inserted between _C1 and the ignition capacitor is closed to charge the ignition capacitor _C2 . Other configurations and operations are the same as those of the first embodiment described above, so explanations will be omitted.

FIG. 3 shows the mechanical shutter section provided in the safety mechanism 4 in the first and second embodiments described above, which is designed to protect against accidental electric detonators during storage, transportation, and handling of ammunition before firing. The detonator A is installed between the electric detonator A and the connected gunpowder in consideration of the ignition of the detonator A. That is, when the shutter 23 is in the safe position, the position of the detonator 24 shown in the figure is shifted from the line connecting the electric detonator A and the conductor 5 above and below, and the space between them is closed by a metal surface, so that in the unlikely event that the electric detonator Even if A were to accidentally ignite, the conductor would not ignite and would not cause any serious harm.

On the other hand, if the gun is fired, the lock pin 25 will come out of the original pin hole due to the impact. Then the drive spring 26
The force rotates the shutter 23, and when the electric detonator A, the detonator, and the conductor 5 are aligned in a straight line as shown in the figure, the locking pin 25 is fixed in a separate hole to complete the conduit and destroy the shell. It is configured as follows.

(Effects of the invention) As described above, according to the invention, a high-velocity energy training bullet has an internal setback power generation type power source or an external rechargeable power source, and this power source can reduce the capacitance C _T and the resistance R. Drives the CR time base voltage of the time base C _T R _T circuit, compares that voltage with a separately set reference voltage, and when the relationship between the two reaches a specified value, a trigger voltage is generated through the comparator _. The trigger voltage is used to discharge the charged energy of the detonator ignition capacitor, which has been charged in advance, by the trigger voltage. Since the electric detonator and the conductor and charge charges connected to it are ignited to destroy the bullet shell and make subsequent flight impossible, there is no chance of causing unexpected damage to objects behind or to the side of the target point. .

Furthermore, if an inertial type landing switch is provided, even if the training bullet does not stop at the target point, it can be detected and the bullet shell destroyed, resulting in safety.

Furthermore, if a mechanical shutter is provided, even if the electric detonator accidentally ignites, it will be possible to prevent the ignition energy from being transmitted to the gunpowder, and overall, this invention has the effect of significantly improving safety compared to previous methods. be.

[Brief explanation of the drawing]

Figures 1A to 1D show the first embodiment of the present invention, in which A is an explanatory diagram showing the internal structure of a training warhead fuze, B is a setback power generation system power supply circuit, C is an ignition circuit, and D is the interior of the landing/launch switch. Explanatory diagrams showing the structure, FIGS. 2A to 2C are a second embodiment of the present invention, and FIG. 3 is an internal structural diagram of a mechanical shutter used in the present invention. 1...Warhead fuse for training ammunition, 3...Ignition circuit, 1
2...Power supply circuit, 13...Timer circuit, 14...
Ignition circuit, C ₂ ...Ignition capacitor, A...Electric detonator, Th...Thyristor, IS...Arrival/start switch, IC...Comparator.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a warhead fuse for high-velocity energy bullet training rounds, this fuze has an internal setback power generation type power supply or an external rechargeable power supply circuit, and this power supply circuit, Drives the CR time base voltage of the time base C _T R _T circuit consisting of a capacitor C T and a resistor R _T , compares that voltage with a separately set reference voltage _, and when the relationship between the two reaches a specified value, the comparator A timer circuit that generates a trigger voltage through a timer circuit and generates the trigger voltage within a certain distance preset according to the target distance at the time of shooting, and a detonator that has been charged in advance with the trigger voltage of this timer circuit. It is characterized by being equipped with an ignition circuit that discharges the charging energy of the ignition capacitor, ignites the electric detonator and the explosives connected thereto, such as a conductor explosive, a transfer explosive, etc., and destroys the shell and makes subsequent flight impossible. A warhead fuse for training ammunition. (2) To form a closed circuit with the series circuit of the detonator capacitor and electric detonator in the ignition circuit,
A warhead fuze for training ammunition according to claim 1, which is comprised of a firing switch connected in parallel that detects the time of impact and discharges the charged energy of a detonator ignition capacitor to ignite an electric detonator. . (3) A warhead fuse for training ammunition according to claim 1 of the utility model registration claim, in which a mechanical shutter is provided between an electric detonator and a connected gunpowder.