JPH0260960B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ignition device that injects and ignites an ignitable substance.

Injecting a target object from a cylinder and igniting it can be used for various purposes, such as when launching a luminous agent, smoke generating agent, or flaming agent to provide a signal, or when ejecting a luminescent agent and igniting it. It may be used as a target for shooting, etc. When igniting such an ignitable material, if the ignition timing is different, the ignitable material may be ignited inside the cylinder and pose a danger to the operator. Furthermore, if the ignitable material is ignited even if the injection force is not sufficient, the ignitable material will fall into the surrounding area, which is extremely dangerous. Despite this risk, a highly safe ignition device that takes ignition timing into consideration has not been provided.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a highly safe ignition device in which the ignitable material is ignited after it is ejected from the cylinder. be.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic cross-sectional view of an ignition device according to the present invention. In FIG. 1, the ignition device includes a hollow cylinder 1 with one end sealed, and an ignition agent 6 inserted into the cylinder 1 in a tight fit so as to provide a sealed part 2 therein. a storage member 3; a propulsion detonation member 4 that detonates within the sealed portion 2 and injects the ignition agent storage member 3 from the cylinder 1; and a propulsion detonation member 4 that is fixed to the ignition agent storage member 3 and ignites the ignition agent 6. It consists of an ignition member 5. The ignition agent storage member 3 stores a ignition agent 6 such as a luminescent agent, a flaming agent, or a smoke generating agent inside a hollow cylindrical body. An end cap 7 is attached to the open end of the pyrotechnic agent storage member 3 to seal the open end of the pyrotechnic agent storage member 3 and to be secured to the open end of the cylindrical body 1. An ignition block 30 as a casing of the ignition member 5 and an obturator 8 are held at one end of the ignition agent storage member 3 by a connecting plate 9 and fixed with bolts 10. The obturator 8 is in contact with the inner surface of the cylindrical body 1 so as to form the sealed portion 2, and the cylindrical body 1 is disposed in the center of the obturator 8.
A stopper 8 is used for positioning by contacting the bottom of the
It is equipped with a. The propulsion detonation member 4 is constructed by fixing a detonation block 11 to the closed end side of the cylindrical body 1. The detonation block 11
Inside, an anode terminal 13 and a cathode plate 14 are arranged on the closed end side of the cylindrical body 1 with an insulator 15 interposed therebetween. The anode terminal 13 is connected to a positive terminal of a power source 16, and the cathode plate 14 is connected to a negative terminal of the power source 16 via a switch 17. In the area facing the anode terminal 13 and the cathode plate 14, there is an ignition charge 19 housed in the tube of the detonation block 11.
, and a transfer charge 20 to be laminated on this ignition charge 19 are arranged. Furthermore, a propellant charge 23 is stored in the upper layer of the transfer charge 20. A holding plate 25 is provided at one end of the propellant 23, and the holding plate 25 is held by the detonation block 11. Next, the ignition member 5 will be explained. The ignition block 30 fixed to the ignition agent storage member 3 has notches 30A, 30B, 30
It is equipped with C. And these notches 30
Relief holes 31, 31 of the firing pin presser plate 39 (details will be described later) are provided so that A, 30B, and 30C are communicated with each other. The cylinder body 1 is provided in the cutout portion 30A.
A cylindrical firing pin chamber 32 extending along the longitudinal direction is fixed, one end of which is sealed, and the other open end having a threaded portion 32A formed therein. In addition, the firing pin chamber 32
An escape hole 32B that communicates with the escape hole 31 provided in the cutout portions 30A and 30B is provided in the side portion of the notch. The screw portion 32A has a detonator chamber 33.
The detonator chamber 33 fixes a detonator 34 to the open end of the firing pin chamber 32, and stores a transfer powder 35 facing the detonator 34.
The transfer powder 35 stored in this detonator chamber 33 is
The ignition agent storage member 3 is inserted through the pyrotechnic charge holding plate 36.
It is designed to face the pyrotechnic agent 6 inside. A firing pin 37 is provided within the firing pin chamber 32. The firing pin 37 has a cylindrical body with one end sealed and has a protrusion 37A protruding from the outer surface of the closed end. The firing pin 37 is biased toward the detonator 34 along the ejection direction of the pyrotechnic charge storage member 3 by a firing pin spring 38 which is a first biasing member. Further, this firing pin 37 is connected to the escape hole 32B.
The firing pin retaining plate 39 which is more protruding allows the detonator 34 to be pushed against the biasing force of the firing pin spring 38.
It is locked in a position apart from the Notch 30
C is provided with a firing pin releaser 40 to which the other end of the firing pin presser plate 39 is fixed. The firing pin presser plate 39 is formed along a direction intersecting the ejection direction of the pyrotechnic agent storage member 3, and has one end locked to the firing pin 37 and a central portion inserted into the escape holes 31 and 3.
2B, and the other end is fixed to the firing pin releaser 40 by a fixture 41. Also, a through hole 39 is provided in the center of this firing pin presser plate 39.
A is drilled. The firing pin releaser 40 is
A notch 40A is provided along the injection direction of the pyrotechnic agent storage member 3, and a releaser spring 42, which is a second biasing member, is provided between the ignition block 30 and the ignition block 40A. The end surface of the firing pin releaser 40 abuts against the inner surface of the cylindrical body 1 and is held under pressure by the urging force of the releaser spring 42. The firing pin presser plate 39, the firing pin releaser 40, and the releaser spring 42 form a firing pin release member 43. The notch 30B is provided with a firing pin release regulating member 44 that restricts movement of the firing pin presser plate 39 in the direction B in the drawing by a protrusion 44A that loosely fits into the through hole 39A of the firing pin presser plate 39. . This firing pin release regulating member 44 is
One end of the cylindrical body has a sealed shape, and the protrusion 44A is formed on the outer surface of the closed end, and a coil spring 45 serving as a third biasing member is provided between the bottom of the cylindrical body and the ignition block 30. has been established.

The operation of the ignition device configured as described above is explained in a second manner.
The explanation will be made with reference to FIGS. 4 through 4. First of all,
The function of the propulsion detonation member 4 for injecting the pyrotechnic agent storage member 3 from the cylindrical body 1 will be explained. When the switch 17 is turned on, the anode terminal 13 and the cathode plate 14 are energized, and the ignition charge 19 is first ignited by this energization. When the ignition charge 19 is ignited, the flame propagates to the transfer charge 20 and further ignites the propellant 23.
As a result, the explosive charge 23 explodes, and the explosive pressure within the sealed portion 2 causes the explosive charge storage member 3 to be ejected along the direction of arrow A in FIG.

Next, the operation of the ignition device after the propellant 23 explodes will be explained. The second is a schematic cross-sectional view showing a state in which the pyrotechnic agent storage member 3 advances inside the cylinder body 1. In FIG. 2, a propulsive force F1 is acting on the pyrotechnic agent storage member 3 toward the direction A in the figure due to explosive pressure. On the other hand, an inertial force F2 that resists the propulsive force F1 acts on the firing pin release regulating member 44, and due to the action of this inertial force F2, the firing pin is released from the through hole 39A of the firing pin holding plate 39 against the urging force of the coil spring 45. The protrusion 44A will come off. Therefore, the firing pin release regulating member 43 becomes operable for the first time at this time. If the explosion is insufficient with the propulsion detonator 4 and sufficient propulsive force F1 cannot be obtained,
Since the protrusion 44A does not come off from the through hole 39A, the firing pin release member 43 does not operate and the igniter 6 is not ignited. In this way, the firing pin release regulating member 44 has the effect of increasing the safety of the ignition device.

Next, the operation of the ignition device when the end of the pyrotechnic agent storage member 3 is detached from the cylinder 1 will be explained with reference to FIG. As shown in FIG.
When the obturator 8 is detached from the open end of the cylinder 1, the firing pin releaser 40, which was pressed and held in contact with the inner surface of the cylinder 1, moves in the direction of injection of the pyrotechnic agent storage member 3 (direction A in the figure). There is no member to restrict movement in the intersecting direction, so it is in a free state. That is,
This is because the firing pin release regulating member 44 still releases the firing pin presser plate 39 due to the inertial force F2. Therefore, the firing pin releaser 40 will fly out in the direction B in the drawing due to the biasing force of the releaser spring 42. Then, as the firing pin releaser 40 pops out, the firing pin presser plate 39 moves to the escape hole 3.
1 and 32B and moves in the direction B in the drawing, one end of the firing pin presser plate 39 separates from the firing pin 37. Then, the restriction of the firing pin spring 38 against urging the firing pin in the direction A in the drawing is released, and the firing pin 37 collides with the detonator 34.
The detonator 34 is ignited by this impact, and the flame propagates to the transfer powder 35, causing a primary explosion.
Then, the ignition agent 6 is ignited by the explosion of the transfer powder 35. The pyrotechnic agent storage member 3 is the fourth
As shown in the figure, the pyrotechnic agent 6 stored inside is burnt or exploded while continuing to move in the direction A in the figure, and can be applied to uses depending on the type of the pyrotechnic agent 6. For example, if the ignition agent 6 is a luminescent agent, the luminescent agent can be emitted while emitting light. For example, if an infrared luminescent agent is used as the luminescent agent, it can be used as a practice target for an infrared tracking missile. In addition, it can be applied to various uses such as a smoke generating agent or a flame generating agent as an ignition agent.

In this way, the firing pin release member 43 is activated when the igniter storage member 3 is separated from the cylinder 1, so the igniter 6 is not ignited within the cylinder 1, and the operator can As a result, safety is improved and there is no fear of damage such as breakage of the cylinder 1. Further, the firing pin release member 44 does not operate when the pyrotechnic charge storage member 3 cannot obtain sufficient propulsion force, which further increases safety for the operator. Furthermore, first, second, and third biasing members 38 and 4 bias the firing pin 37, firing pin releaser 40, and firing pin release regulating member 44, respectively.
2 and 45 can be installed in a state close to the free length, so that the life of the biasing member can be increased. That is, the first biasing member 38 only needs to have a biasing force sufficient to cause the firing pin 37 to collide with the detonator 34 and ignite the detonator 34 when the firing pin presser plate 39 is detached, and the second biasing member The member 42 only needs to have a biasing force sufficient to release the firing pin presser plate 39 from the firing pin 37 when the pyrotechnic charge storage member 3 is detached from the cylinder 1. This is because no compressive force is required. Further, the third biasing member 45 only needs to have a biasing force to the extent that the protruding portion 44A does not separate from the through hole 39A when only an extremely low propulsive force acts on the pyrotechnic agent storage member 3. However, an excessive compression force is unnecessary, and if the compression force is excessive, the ignition device may not operate.

It goes without saying that the present invention is not limited to the embodiments described above, and includes various modifications within the scope of the gist of the invention. For example, the configuration of the firing pin release member 43 is not limited to that shown in FIG. 1, but may be as shown in FIG. 5. In FIG. 5, a firing pin press plate 39 that locks the firing pin 37 is connected via a hinge 50 to one end of a swing link 52 that is swingable about a fulcrum 51. As shown in FIG. The other end of the swing link 52 is connected via a hinge 54 to a shaft 53 to which a firing pin releaser 40 is fixed, which is biased by a releaser spring 42 and pressed against the inner surface of the cylinder body 1 . Even with such a configuration, if the firing pin releaser 40 is detached from the inner surface of the barrel 1 and moved in the direction C in the figure, the firing pin presser plate 39 can be detached in the direction D in the figure by rotation of the swing link 52. can. Therefore, it is possible to achieve the same effects as in the embodiments described above. Furthermore, the first, second, and third biasing members 38, 42, and 45 are not limited to coil springs, but may be other biasing members such as plate springs.

As explained above, according to the present invention, it is possible to accurately ignite the ignitable material ejected from the cylinder at the timing immediately after the flammable material leaves the cylinder, resulting in a highly safe ignition device. can be provided. Furthermore, by providing the firing pin release regulating member, when the propulsive force of the igniter storage member is not sufficient, the operation of the firing pin release member can be restricted to prevent ignition, thereby further improving safety. Can be done.

[Brief explanation of drawings]

FIG. 1 is a schematic cross-sectional view of the ignition device according to the present invention,
2 to 4 are schematic sectional views for explaining the function of the ignition device, and FIG. 5 is a schematic sectional view showing a modification of the firing pin release member. DESCRIPTION OF SYMBOLS 1... Cylindrical body, 2... Sealing part, 3... Ignition agent storage member, 4... Propulsion detonation member, 5... Ignition member,
6...Igniting agent, 34...Detonator, 37...Firing pin, 4
3... Firing pin release member, 44... Firing pin release regulating member.

Claims (1)

[Scope of Claims] 1. A cylindrical body whose one end is sealed; an igniting agent storage member which is inserted into the cylindrical body in a tight fit such that a sealed portion is provided at one end of the cylindrical body and stores an igniting agent therein; An ignition device comprising a propulsion detonation member that detonates within a sealed portion and injects the ignition agent storage member from the cylindrical body, and an ignition member that is fixed to the ignition agent storage member and ignites the ignition agent, the ignition member a detonator for igniting the pyrotechnic charge; a firing pin disposed opposite to the detonator and urged toward the detonator; one end of the detonator abutting the firing pin to lock the firing pin at a position separated from the detonator; An ignition device comprising: a firing pin release member whose other end is biased in a direction intersecting the injection direction of the ignition agent storage member and is held in contact with the inner surface of the cylindrical body. 2. A cylindrical body whose one end is sealed, an igniting agent storage member which is inserted tightly into the cylindrical body so as to provide a sealed portion at one end of the cylindrical body and stores an igniting agent therein, and an igniting agent storage member which is detonated within the sealed portion. In the ignition device, the ignition device includes a propulsion detonation member that injects the ignition agent storage member from the cylinder body, and an ignition member that is fixed to the ignition agent storage member and ignites the ignition agent. a detonator to be ignited; a firing pin disposed opposite to the detonator and urged toward the detonator; one end of the detonator contacts the firing pin to lock the firing pin at a position separated from the detonator; the other end of the firing pin ignites the detonator; a firing pin release member that is biased in a direction crossing the injection direction of the pyrotechnic agent storage member and held in contact with the inner surface of the cylinder; and a firing pin release member that is biased along the injection direction of the pyrotechnic agent storage member and released the firing pin. An ignition device comprising: a firing pin release regulating member that locks the firing pin release member and restricts movement of the firing pin release member in a direction intersecting the ejection direction.