JP2011099584A - Multistage ignition device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a multistage ignition device capable of performing ignition by one motion of pressing a switch corresponding to a trigger. <P>SOLUTION: This multistage ignition device includes a start switch/safety release switch, an ignition dedicated switch for igniting a blasting supply, the plurality of blasting supplies, a power source for supplying electric power to the plurality of blasting supplies, an ignition circuit connecting the start switch/safety release switch and the ignition dedicated switch with the blasting supplies, and supplying electric power from the power source to the blasting supplies when the ignition dedicated switch is pressed, a self-power source holding circuit for holding the power source when the start switch/safety release switch is pressed, and a control circuit for allowing the self power source holding circuit to hold the power source when receiving an input signal from the start switch/safety release switch, creating an ignition signal every blasting supply every time of receiving an input signal from the ignition dedicated switch in holding the power source, igniting the blasting supply through the ignition circuit, and counting the ignited blasting supplies. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a multistage ignition device that is easy to fire, such as a pyrotechnic product such as a portable liquid ejecting device and a security net deploying device, and a device that uses an operation by electric ignition.

Conventionally, for example, when a pyrotechnic product such as a portable liquid ejecting device or a security net deploying device is fired continuously, a mechanical ignition circuit switching device has been used.
However, when a mechanical ignition circuit switching device is used, since the next bullet is fired while switching each time it is fired, there is a problem that many parts are required and the device becomes complicated.
Therefore, continuous fire using a simple electric circuit has been proposed.

“Sequential Igniter for Gunsizer (G-ELIS1)” (Catalog issued by Nippon Koki Co., Ltd.)

However, in this case, it is necessary to install a necessary number of ignition switches and operate each switch to ignite each.
In addition to the ignition switch, a changeover switch is provided to sequentially ignite while switching the ignition circuit.
On the other hand, a switching device is required to ignite a plurality of objects with one firing switch.

Without a changeover switch, one ignition switch is required per circuit. Therefore, the same number of switches is required to perform a large number of ignitions.
Although a single ignition switch can be used simultaneously, a changeover switch is required to sequentially ignite a plurality of ignition switches. For this reason, it is necessary to switch the changeover switch for each firing with one ignition only switch.
Furthermore, if the control circuit is always ON, the battery is consumed. Therefore, when performing electronic control, a control circuit and its power switch are required separately.

The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a multistage ignition device which can be ignited by one operation of pressing a switch corresponding to a trigger.
Another object of the present invention is to provide a multi-stage ignition device that distinguishes a signal due to a drop impact of the device and reacts only to an obvious ignition operation signal.

  The invention according to claim 1 is a start-up / safety release switch comprising a return type switch, a return type switch, an ignition only switch for igniting a pyrotechnic, a plurality of pyrotechnics, and a plurality of pyrotechnics. A power supply that supplies power to the pyrotechnics by connecting the start switch / safety release switch and the ignition dedicated switch to the pyrotechnic, and when the ignition dedicated switch is pressed, the ignition circuit that supplies the power from the power source to the pyrotechnic When the safety release switch is pressed, the power supply is held by the self-power holding circuit that holds the power and the input signal from the start / safety release switch. Each time an input signal is received, an ignition signal is generated for each pyrotechnic, and the pyrotechnic is ignited via the ignition circuit, and the ignition pyrotechnics are counted. Characterized in that it comprises a circuit.

The invention according to claim 2 is the multistage ignition device according to claim 1, wherein the plurality of pyrotechnics includes a non-explosive pyrotechnic gas generator.
According to a third aspect of the present invention, in the multistage ignition device according to the first or second aspect, the self-power holding circuit is configured such that the start switch and the safety release switch are continuously pressed for the first specified time, and the power is self-held. Then, after the control circuit is activated, a determination unit is provided that cancels the self-holding of the power source and does not activate the control circuit when the activation switch / safety release switch leaves in less than the first designated time.
According to a fourth aspect of the present invention, in the multistage ignition device according to the third aspect, the self-power holding circuit is configured to perform ignition if the pressing time of the ignition switch is equal to or longer than the second specified time after the control circuit is activated. An ignition intention determination unit is provided that determines that there is an intention and determines that there is no intention of ignition when the pressing time of the ignition dedicated switch is less than the second specified time.

According to a fifth aspect of the present invention, in the multistage ignition device according to the fourth aspect, after the determination by the ignition intention determination unit, when the contact point of the ignition dedicated switch is separated by a third specified time or more, it is determined that the ignition is completed. An ignition completion determination unit is provided.
The invention according to claim 6 is the multistage ignition device according to any one of claims 1 to 5, wherein the ignition circuit includes two transistors connected in Darlington connection.
The invention according to claim 7 is the multistage ignition device according to any one of claims 1 to 6, wherein the start switch / safety release switch and the ignition dedicated switch are integrated, and a contact that separates when pressed is provided. The switch has two contacts, that is, a contact to be connected when pressed, and a common contact, and a switch having two circuits and two contacts is formed in one switch.

According to the present invention, the switch is for generating an ignition signal, and is determined and ignited by a small electronic circuit, so that one switch can be fired at an arbitrary timing.
Further, the switch is for generating an ignition signal, and a small electronic circuit determines whether it is a drop impact or an intention to ignite.
The switch is for generating an ignition signal, and the ignition sequence is controlled by a small electronic circuit for ignition. Therefore, a changeover switch or the like is not required, and the operation is extremely simple.
Further, the switch is for generating an ignition signal, and the ignition sequence is controlled by a small electronic circuit for ignition. Therefore, a mechanical connection device is not required, and the structure is simple and inexpensive.

1 is a perspective view showing a portable liquid ejecting apparatus 1 according to a first embodiment of the present invention. 1 is an exploded perspective view showing a portable liquid ejecting apparatus 1 according to a first embodiment in two ejecting apparatuses 10 and a portable launching apparatus 20 on which these two ejecting apparatuses 10 are mounted. It is sectional drawing of the injection apparatus 10 used for the portable liquid injection apparatus 1 which concerns on 1st embodiment. It is sectional drawing which expands and shows the non-explosive pyrotechnic type gas generator 14 of the injection device 10 shown in FIG. It is explanatory drawing which shows the assembly procedure of the non-explosive pyrotechnic type gas generator 14 shown in FIG. It is a perspective view which decomposes | disassembles and shows the portable launcher 20 used for the portable liquid injection apparatus 1 which concerns on 1st embodiment. It is a top view which shows the state which assembled | attached the injection apparatus 10 to the portable launching apparatus 20 shown in FIG. 6, removing one case 21B. It is a perspective view which shows the assembly | attachment state of the switch part 24 used for the portable launcher 20 shown in FIG. 6, the power supply part 23, and socket 22c, 22d. It is explanatory drawing which shows the state which connects the non-explosive pyrotechnic type gas generator 14 to the portable launcher 20 shown in FIG. It is a perspective view which removes one case 21B and shows the state before mounting | wearing the launcher 20 which can carry the two injection devices 10 in FIG. It is a perspective view which removes one case 21B and shows the state which mounted | wore the portable launcher 20 with the two injection devices 10 in FIG. It is explanatory drawing which shows the operation state of the portable liquid injection apparatus 1 shown in FIG. It is sectional drawing which shows the operating state of the injection apparatus 10 at the time of operation of the portable liquid injection apparatus 1 shown in FIG. It is explanatory drawing which shows the relationship between the piston 13 and the adapter 17 in which the pressure release mechanism in the injection device 10 shown in FIG. 13 functions. It is explanatory drawing which shows the method of finding the optimal injection conditions (nozzle diameter, injection material viscosity) of the nozzle part 16 in the injection device 10 shown in FIG. It is explanatory drawing which shows another example of the pressure release mechanism in the injection device 10 shown in FIG. FIG. 2 is an electrical drawing showing a switch control circuit 200 and a component configuration connected to the switch control circuit 200 in the portable liquid ejecting apparatus 1 shown in FIG. 1. It is a figure which shows the relationship with ON / OFF operation | movement of the firing switch (SW2a) 24B in the switch control circuit 200 shown in FIG. It is a figure which shows the case where a drop impact is added to the launch switch (SW2a) 24B in the switch control circuit 200 shown in FIG. It is a figure which shows the effect of the capacitor | condenser (marked 0.1 micro F (104)) in the switch control circuit 200 shown in FIG. It is a figure which shows the operation | movement of the voltage 238 of the input port (pin number 2, GP5) of control IC213 in the switch control circuit 200 shown in FIG. FIG. 18 is a diagram showing a relationship between an ON / OFF operation of a firing switch (SW1a) 24A and a base voltage of a transistor 205 in the switch control circuit 200 shown in FIG. It is a figure which shows the case where a drop impact is added to the launch switch (SW1a) 24A in the switch control circuit 200 shown in FIG. When the control IC 213 in the switch control circuit 200 shown in FIG. 17 self-holds the power, a power-holding signal is output to the pin number 6 and GP1, the transistor 206 is turned on, the power is self-held, and the transistor 206 is It is a figure which shows the state in which a power supply is self-maintained regardless of operation | movement of the launch switch (SW1a) 24A when it turns ON. FIG. 18 is a diagram illustrating an operation flow of the switch control circuit 200 illustrated in FIG. 17. It is a perspective view which shows the portable liquid injection apparatus 100 which concerns on 2nd embodiment of this invention. It is a perspective view which shows the state which removed the safety cover 126 of the portable liquid ejecting apparatus 100 which concerns on 2nd embodiment of this invention. It is a perspective view which decomposes | disassembles and shows the portable liquid injection apparatus 100 which concerns on 2nd embodiment into the two injection apparatuses 110 and the portable launcher 120 which mounts these two injection apparatuses 110. FIG. It is sectional drawing of the injection apparatus 110 used for the portable liquid injection apparatus 100 which concerns on 2nd embodiment. It is a perspective view which decomposes | disassembles and shows the portable launcher 120 used for the portable liquid injection apparatus 100 which concerns on 2nd embodiment. It is a top view which removes one case 121B and shows the state which assembled | attached the injection apparatus 110 to the portable launcher 120 shown in FIG. It is a perspective view which shows the assembly | attachment state of the switch part 124 used for the portable launcher 120 shown in FIG. 30, the power supply part 123, and wire mount socket 122a, 122b. It is explanatory drawing which shows the state before connecting the non-explosive pyrotechnic-type gas generator 114 to the portable launcher 120 shown in FIG. It is explanatory drawing which shows the state after connecting the non-explosive pyrotechnic-type gas generator 114 to the portable launcher 120 shown in FIG. It is explanatory drawing which shows the procedure which removes the injection apparatus 110 in the portable liquid injection apparatus 100 which concerns on 2nd embodiment from the launcher 120 which can be carried. It is explanatory drawing which shows the procedure which removes and pulls out the injection apparatus 110 from the portable launching apparatus 120 in the portable liquid injection apparatus 100 which concerns on 2nd embodiment. FIG. 27 is an explanatory diagram illustrating an operation state of the portable liquid ejecting apparatus 100 illustrated in FIG. 26. It is sectional drawing which shows another example of the injection apparatus 110 in this invention. It is sectional drawing which shows another example of the injection apparatus 110 in this invention. It is a perspective view which shows another example of the portable liquid ejecting apparatus 100 which concerns on 2nd embodiment. It is a perspective view which shows another example of the portable liquid injection apparatus 100 which concerns on 2nd embodiment. It is a perspective view which shows another example of the portable liquid injection apparatus 100 which concerns on 2nd embodiment. It is a perspective view which shows another example of the portable liquid ejecting apparatus 100 which concerns on 2nd embodiment. It is explanatory drawing which shows the portable liquid injection apparatus 150 which concerns on another embodiment of this invention. It is explanatory drawing which shows the portable liquid injection apparatus 160 which concerns on another embodiment of this invention. It is explanatory drawing which shows the portable liquid injection apparatus 170 which concerns on another embodiment of this invention. It is a figure which shows the example which comprised the ignition circuit of the switch control circuit 200 of FIG. 17 with the small relay. It is a figure which shows the example which comprised the ignition circuit of the switch control circuit 200 of FIG. 17 by FET (MOS-FET).

Hereinafter, the present invention will be described based on embodiments shown in the drawings.
(First embodiment)
1 to 15 show a portable liquid ejecting apparatus 1 according to a first embodiment of the present invention.
The portable liquid ejecting apparatus 1 according to this embodiment includes two ejecting apparatuses 10 and a portable launching apparatus 20 on which these two ejecting apparatuses 10 are mounted.

First, the two injection devices 10 will be described.
As shown in FIG. 3, the two injection devices 10 include a container 11 for filling the injection object 12, a piston 13 for pressing the injection object 12 to inject the injection object 12 from the container 11, and a gas for pressing the piston 13. A non-explosive pyrotechnic gas generator 14 that generates pressure, a nozzle portion 16 that ejects a spray 12 pressed by the piston 13, an adapter 17 that connects the nozzle portion 16 and the container 11, and a nozzle portion 16 And a seal 18 interposed between the adapter 17.

The propellant 12 includes, for example, a tear solution and a marking solution having a viscosity of about 6 to 40 dPa · s. Since the ejected matter 12 is viscous, the ejected matter 12 is ejected as a lump, hardly diffuses, and the ejection distance becomes longer.
The tear solution is made into a viscous tear solution by dissolving a tear component in ethanol, mixing water, and adding a gelling agent. Examples of the tear component include chloroacetophenone, capsaicin, allyl isothiocyanate, and the like. Examples of the gelling agent include xanthan gum, sodium carboxymethyl cellulose, guar gum, pectin, carrageenan, propylene glycol and the like.

  The marking liquid includes a case where the paint is viscous, a case where the paint is not viscous (water dilutable), a case where the paint is not viscous (ethanol dilutable), and the like. If the paint is viscous, use it as it is within the viscosity range. When the paint is not viscous (dilutable with water), the paint is diluted with water and a gelling agent is added to obtain a viscous marking liquid. When the paint is not viscous (ethanol can be diluted), the paint is diluted with ethanol, mixed with water, and a gelling agent is added to form a viscous marking liquid. Examples of the paint include ultraviolet light-emitting paint, fluorescent paint, phosphorescent paint, paint, and ink. Examples of the gelling agent include xanthan gum, sodium carboxymethyl cellulose, guar gum, pectin, carrageenan, propylene glycol and the like.

The container 11 filled with the propellant 12 is formed of, for example, a cylindrical body made of metal such as stainless steel or aluminum, and is provided with a female screw portion 11a into which a non-explosive pyrotechnic gas generator 14 is screwed at one end and the other end. A female screw portion 11b into which the adapter 17 is screwed is provided in the portion.
The piston 13 includes, for example, a main body 13a having a cylindrical shape made of plastic such as Teflon (registered trademark), ABS resin, nylon resin, etc., a pressure release groove 13c provided on the front end portion 13b side that presses the injection product 12, The pressure receiving recessed part 13e provided in the rear-end part 13d side which contact | connects the gas ejection port of the explosive pyrotechnic type gas generator 14 is provided. The container 11 is attached to the inner wall surface 11c on the inner side of the female screw portion 11a at one end portion.

  As shown in FIGS. 3 and 4, the non-explosive pyrotechnic gas generator 14 includes a gas generator 14 a and a metal cylindrical body made of, for example, stainless steel or aluminum, and accommodates the gas generator 14 a. The holder 14o, and the leg wires 14j1 and 14j2 connected to the bridge 14g and 14g2 connected to the bridge wire 14g are fixed with epoxy resin, and the leg wires 14j1 and 14j2 connected to the cable bridge 14g are connected to the holder 14o. For example, a wedge base 14n made of a hard resin such as nylon resin or a metal such as stainless steel or aluminum, and a bottomed cylindrical body made of a metal such as stainless steel or aluminum, and covering the wedge base 14n. The cap 14k is screwed into the holder 14o by a female screw portion 14m provided on the inner periphery of the opening end.

  For example, the gas generating unit 14a is filled with a gas generating agent 14c in a gas generator tube 14b made of a metal bottomed cylindrical body made of aluminum, and an igniter cup 14d, an igniting agent 14e, and an igniting agent. The holder 14f and the plug 14g with the bridge line are sequentially loaded, and the gas generator tube body 14b is formed by caulking processing at the site 14h of the igniter holder 14f and the site 14i of the plug 14g with the bridge line.

  For example, by using a soft metal material such as aluminum, the gas generator tube 14b can easily destroy the gas generator tube 14b due to the reaction heat and reaction gas pressure of the gas generating agent 14c which is a non-explosive composition. Can be transmitted to the outside. The gas generator tube 14b may be anything as long as it is a soft metal material with good workability. For example, since the gas generator tube 14b has the same shape as an electric detonator using copper, aluminum (for example, A1-6016-0) is used. By using it, the confusingness is removed. The aluminum gas generator tube 14b is alumite-treated on the inner and outer surfaces.

  The gas generator tube 14b is filled with a gas generating agent 14c in a range of 0.3 g to 0.5 g. This gas generating agent 14c uses a low-vibration and low-noise crushing chemical gunsizer (trade name, manufactured by Nippon Koki Co., Ltd.). This is a consumption permit in exactly the same way as the crushing method using explosives. It is a non-explosive crushing composition that crushes bedrock and the like without need. This non-explosive crushing composition is disclosed, for example, in JP-A-11-029389. The gas generating agent 14c is not intended to crush the bedrock or the like, but to change the gas pressure to the purpose of injecting the ejected matter 12, and as a result, the gas generating agent 14c has a uniform particle diameter, thereby varying the gas pressure. I found that I can make it smaller. Further, it is possible to change the dose of the gas generating agent 14c in accordance with the performance of flying an object.

  The gas generating agent 14c is composed of 11.5 parts by weight of aluminum, 38.5 parts by weight of cupric oxide, a thermite agent comprising 50 parts by weight of potassium alum or ammonium alum, and a chloride previously dissolved in acetone. It is constituted by putting 1.5 parts by weight of vinyl powder in the same container, adding an appropriate amount of acetone and mixing well. When acetone is almost volatilized and solidified, it is granulated with an 8-mesh sieve and dried. After drying, 2.5 parts by weight of potassium stearate as a blunting agent and an appropriate amount of acetone are added and slowly mixed, and when acetone is vaporized and solidified, it is granulated and dried to obtain a gas generating agent. As the gas generating agent 14c, a sieved product having 24 Tyler mesh passing 42 Tyler mesh stopping is used. That is, the particle size is adjusted in the range of 0.35 mm to 0.71 mm.

  In the gas generator tube 14b, a capsule-shaped igniter cup 14d made of a synthetic resin, which serves as a partition wall, is disposed to prevent mixing of the filled gas generant 14c and igniter 14e. The igniter cup 14d may be metal or non-metal, but since the metal material is good electric, the electric ignition signal does not flow to the bridge line 14t, but is expended on the discharge energy. Since 14e may be non-ignited, it is necessary to perform an insulating process (for example, anodized process).

  The igniter cup 14d is a thin film having a thickness of 0.1 mm or less and a half-cut capsule is used, and is inserted into the igniter holder 14f. In the igniter cup 14d and the igniter holder 14f, an igniting agent 14e composed of a non-explosive composition and an electric bridge wire (for example, a platinum-iridium wire) 14t of a plug with wire bridge 14g are arranged. The igniting agent 14e was boron / cupric oxide = 10 to 20% by weight / 80 to 90% by weight.

The plug 14g with bridge line is inserted after the igniter holder 14f is inserted into the igniter cup 14d and the igniter 14e is filled in the range of 0.06g to 0.13g, and then the gas generating agent 14c is filled. A gas generator tube body is formed by press-fitting into a gas generator tube body 14b made of aluminum and forming two crimped portions (14h, 14i) from the outside of the gas generator tube body 14b made of aluminum. It is fixed to 14b. The gas generator tube 14b, which is crimped to a plug 14g with a bridge, is inserted into the wedge base 14n and filled with an epoxy resin 14u. Backward gas ejection when the gas generator 14a ignites is blocked by the epoxy resin 14u filled in the wedge base 14n.
Further, the leg lines 14j1 and 14j2 are taken out from two holes 14v vacated at the bottom of the wedge base 14n to form electrical contact portions. The wedge base 14n is provided with a wedge portion 14w to which leg lines 14j1 and 14j2 are attached and coupled to a socket 22c described later.

  The holder 14o has an inner wall portion 14p having a gas jet port 14q attached to the gas generating portion 14a and expanding toward the opening side, and a male screw portion 14r provided on the outer periphery of the opening end on the gas jet port 14q side. A male screw portion 14s that is screwed with the female screw portion 14m of the cap 14k is provided on the outer periphery of the opening end on the cap 14k side. For example, iron or stainless steel can be used as the material of the holder 14o, but aluminum A5056 is preferable in terms of weight reduction and cost. Since the holder 14o engages the male screw portion 14s with the female screw portion 14m of the cap 14k, the gas generating portion 14a is fixed by the holder 14o and the cap 14k, and the gas generating portion 14a is moved backward when the gas generating portion 14a is operated. Prevents jumping out.

The nozzle portion 16 is constituted by a one-hole straight-advancing nozzle made of a metal such as stainless steel or aluminum, or a hard resin such as ABS resin or nylon resin, and the nozzle 16a has a hole diameter of φ1.5 mm to 3 mm. Is provided with a male screw portion 16b for connection to the adapter 17.
The adapter 17 is made of, for example, a cylindrical body made of metal such as stainless steel or aluminum, and is provided with a male screw portion 17a to be screwed into the female screw portion 11b of the container 11 at one end portion, and a male screw of the nozzle portion 16 at the other end portion. A female screw portion 17b into which the portion 16b is screwed is provided. Further, the adapter 17 is provided with an annular piston receiving surface 17c that protrudes from the inner wall surface toward the center, and serves as a wall surface on which the piston 13 collides. The nozzle-side wall surface of the piston receiving surface 17c is sealed so as to prevent the spray 12 from leaking when the nozzle portion 16 is attached, for example, an aluminum seal, an aluminum plate, a grooved synthetic resin sheet, or the like. 18 is a contact surface on which 18 is interposed.

Next, the portable launcher 20 will be described.
The portable launching device 20 has a container shape in which the outer shape can be made portable by connecting, for example, a split case 21A, 21B made of an injection molded product such as ABS resin or polyacetal resin with a plurality of screws 21a. ing.
The case 21 </ b> A has two attachment portions 22 that attach the two injection devices 10 in an exchangeable manner by exposing the nozzle portion 16, and a power supply portion 23 that supplies electric power to each of the injection devices 10 attached to the two attachment portions 22. And a power supply unit that is provided between the power supply unit 23 and the injection device 10 and that short-circuits the power supply unit 23 and the injection device 10. Circuit board 25.

The attachment portion 22 includes socket assembly portions 22a and 22b in which sockets 22c and 22d that are coupled to the wedge base 14n of each injection device 10 are assembled, and a partition wall portion that rises oppositely so as to restrain the side portion of each injection device 10. 22e, an O-ring 22f for fixing the distal end side portion of the container 11 of each injection device 10, and an adapter 17 of each injection device 10, and an insertion hole 28 of each injection device 10 exposing the nozzle portion 16 is provided. And a recess 22g to be formed.
For example, as shown in FIG. 9, the sockets 22c and 22d are press-fitted into the recesses 22c3 and 22d3 of the sockets 22c and 22d by terminals 22c1, 22c2, 22d1 and 22d2 separated on the + and − sides. The terminals 22c1, 22c2, 22d1, and 22d2 are soldered with leg lines 22c4, 22c5, 22d4, and 22d5, respectively, so as to be electrically connected to the power supply circuit board 25.

  Here, the connection between the wedge base 14n of the injection device 10 and the socket 22c will be described. FIG. 9 shows the case where the resin portion of the socket 22c is removed and the actual appearance so that the connection portion can be easily understood. The connection between the wedge base 14n of the injection device 10 and the socket 22d is omitted, but is the same as the connection between the wedge base 14n of the injection device 10 and the socket 22c.

The plus side leg 14j1 of the wedge base 14n of the injection device 10 and the plus side terminal 22c1 of the socket 22c are connected. Similarly, the minus side leg 14j2 of the wedge base 14n and the minus side terminal 22c2 of the socket 22c are connected to each other. Is connected.
The socket assembly portion 22a is configured by a block-shaped body having a locking groove for restraining the socket 22c from both sides of the socket 22c.

In the power supply unit 23, electrodes 23c and 23d are arranged to face each other so that the two lithium batteries 23a can be fixed in series.
The switch part 24 is provided between the partition wall parts 22e. The switch 24a protrudes into the window 22h so that it can be pressed.

  In this embodiment, the switch part 24 is provided with the switch control circuit 200 provided with the program which makes it possible to operate the two injection apparatuses 10 by one. When the switch 24a is pressed, the switch control circuit 200 energizes one of the injection devices 10, ignites the non-explosive pyrotechnic gas generator 14, generates gas, and presses the piston 13 to cause the injection 12 to flow. After spraying from the nozzle section 16 and energization, the switch circuit program switches to the other injector 10 side, and when the switch 24a is pushed again, the other injector 10 is energized and a non-explosive pyrotechnic gas generator 14 is ignited, gas is generated, the piston 13 is pressed to inject the injection material 12 from the nozzle 16a, and after energization, it is switched to the one injection device 10 side.

The case 21A is surrounded by a rising wall 22i, and a screw boss portion 22j for screwing a plurality of screws 21a is provided on the rising wall 22i.
The case 21B has a function as a lid that covers the upper surface side after mounting each component in the case 21A. The case 21B is surrounded by a rising wall 21f, and a plurality of screws 21a are inserted through the rising wall 21f. And a window 21c through which the switch 24a is exposed is provided on the top plate 21d.

In the portable launching device 20, a safety cover 26 that prevents an unexpected operation of the switch unit 24 is movably attached to the top plate 21d and the bottom plate 22k of the cases 21A and 21B.
The safety cover 26 has a U-shape formed by connecting the two cover portions 26a and 26b with a connecting portion 26c having a width equivalent to the thickness of the assembled cases 21A and 21B, and the two cover portions 26a, Two guides 26d that are guided along two grooves 21e and 21e (not shown in the case 21A) provided on the side surfaces of the cases 21A and 21B are provided on the inner surface of the case 26b.

Next, the switch control circuit 200 will be described with reference to FIG.
Here, in order to describe a case where two injection devices 10 are operated, each non-explosive pyrotechnic gas generator 14 will be described as a pyrotechnic (IGN1) 14A and a pyrotechnic (IGN2) 14B.
In addition, the switch unit 24 is an integrated type of two switches. The switch unit 24 has two contacts, a contact that separates when pressed, a contact that connects when pressed, and a common contact. Since a switch constituting a switch having two circuit contacts is used, the start switch and safety release switch will be described as a firing switch (SW1a) 24A, and the ignition only switch will be described as a firing switch (SW2a) 24B.

  The switch control circuit 200 uses a control IC 213 formed of 12F629 as a control device, and includes a resistor (2.2 kΩ) 202, a resistor (2.2 kΩ) 203, a transistor (2SA1162) 205, a transistor (2SC2712) 206, and a port of the control IC 213. (Pin number 6, GP1), resistor (2.2 kΩ) 210, capacitor (1 μF) 207, capacitor (0.1 μF) 208, control IC 213 + power supply terminal (pin number 1, Vdd) and control IC 213 − Consists of a self-power holding circuit 300 composed of power supply terminals (pin number 8, Vss), a control IC 213 port (pin number 2, GP5), a resistor (10 kΩ) 209, and a capacitor (0.1 μF) 212 Fire determination circuit (ignition intention determination unit) 301 and control IC 213 port (pin No. 5, GP2), resistance (10 kΩ) 214, transistor (2SC2712) 216, transistor (2SC2873) 217, first firing circuit (ignition circuit) 302, and control IC 213 port (pin number 3, GP4), a resistor (10 kΩ) 218, a transistor (2SC2712) 220, and a second firing circuit (ignition circuit) 303 composed of a transistor (2SC2873) 221.

In the present embodiment, the battery 23a composed of two lithium batteries is necessary for the operation of the control IC 213 to be used and the ignition of the pyrotechnics (IGN1) 14A and pyrotechnics (IGN2) 14B to be used. Supply power. In addition, two 3V batteries are connected in series in order to obtain a voltage of 5V or more necessary for the control IC 213 to be used. Furthermore, the ignition of the pyrotechnics (IGN1) 14A and pyrotechnics (IGN2) 14B to be used requires a current of 1A or more, so a cylindrical lithium primary battery CR2 is selected from various 3V electromotive force lithium batteries. used.
The resistor (2.2 kΩ) 202 and the resistor (2.2 kΩ) 203 divide the battery voltage of the battery 23a by half when the firing switch (SW1a) 24A is turned on, and the base circuit 233 of the transistor (2SA1162) 205. Supply voltage. Alternatively, a voltage is supplied to the base circuit 233 of the transistor (2SA1162) 205 even when the transistor (2SC2712) 206 is in an ON state and self-holds the power supply. A terminal 235 of the firing switch (SW1a) 24A is a collector voltage of the transistor (2SC2712) 206.

The firing switch (SW1a) 24A constitutes a switch with two circuits and two contacts with the firing switch (SW2a) 24B. When the firing switch (SW1a) 24A is pushed, this contact is turned ON, and the voltage required for the operation of the transistor (2SA1162) 205 is set to the resistance (2.2kΩ) 202 and the resistance (2.2kΩ) 203 by the transistor (2SA1162) 205. It has a function of supplying to the base circuit 233.
When a voltage is supplied to the base circuit 233 of the transistor (2SA1162) 205 by the firing switch (SW1a) 24A, the resistor (2.2kΩ) 202, and the resistor (2.2kΩ) 203, the transistor (2SA1162) 205 is connected between the emitter and the collector. Is conducted, and a voltage is supplied to the power supply circuit (5.4 to 5.8 V) 237 of the control IC 213. With this voltage, the control IC 213 performs its function.

When the transistor (2SC2712) 206 receives the power supply self-holding control signal (5V) 231 from the 6th pin of the control IC 213 to the base circuit 232 of the transistor (2SC2712) 206 via the resistor (2.2Ω) 210, It becomes the ON state and gives the same effect as when the firing switch (SW1a) 24A is turned ON. Therefore, while receiving the power supply self-holding control signal (5V) 231, the control IC 213 continues to function even when the firing switch (SW1a) 24A is turned off.
Conversely, when the firing switch (SW1a) 24A is in the OFF state and the power supply self-holding control signal (5V) 231 is turned off (0V), the transistor (2SA1162) 205 is turned off and is controlled by the control IC 213 itself. The IC 213 is turned off, so that the battery is not consumed.

The self-holding control voltage 231 from the I / O port (Pin No. 6, GP1) of the control IC 213 is 0V (Low state) when the control IC 213 is OFF or the control IC 213 is OFF by itself. When it is held, it becomes 5V (Hi state).
The voltage of the base circuit 232 in which the self-holding control voltage 231 controls the transistor (2SC2712) 206 via the resistor (2.2 kΩ) 210 is about 0.6V to 0.8V, 0V when the self-holding control voltage 231 is 5V. In this case, it becomes 0V.
The voltage of the base circuit 233 of the transistor (2SA1162) 205 that turns on the control IC 213 is a voltage that is divided by half of the power supply voltage 230 by the resistor (2.2 kΩ) 202 and the resistor (2.2 kΩ) 203. It is.

The power supply voltage 237 of the control IC 213 is 5V when the transistor (2SA1162) 205 is ON, and 0V when it is OFF.
When the voltage 238 of the firing switch (SW2a) 24B and the input terminal (pin number 2, GP5) of the control IC 213 is about 5V, it is determined that there is no intention to launch, and when it is 0V, there is a intention to launch.
A control voltage 239 for igniting the pyrotechnic (IGN1) 14A is supplied from the I / O port (pin number 5, GP2) of the control IC 213. It is 0V during standby and 5V during ignition.
The voltage 240 supplied to the base of the ignition control transistor (2SC2712) 216 from the ignition control voltage 239 via the resistor (10 kΩ) 214 is divided by the resistor (10 kΩ) 214 and the resistor (10 kΩ) 215, and in standby mode 0V, about 2.5V at ignition. The resistor (10 kΩ) 214 transmits the ignition signal (pin number 5, GP2) 239 of the control IC 213 to the ignition control transistor (2SC2712) 216 and the ignition control transistor (2SC2873) 217 of the pyrotechnic (IGN1) 14A.

A control voltage 241 for igniting the pyrotechnic (IGN2) 14B is supplied from the I / O port (pin number 3, GP4) of the control IC 213. It is 0V during standby and 5V during ignition.
The voltage 242 supplied to the base of the ignition control transistor (2SC2712) 220 from the ignition control voltage 241 through the resistor (10 kΩ) 218 is divided by the resistor (10 kΩ) 219 to be 0 V during standby and about 2.5 V during ignition. It is.
The bypass capacitor (1 μF) 207 and the bypass capacitor (0.1 μF) 208 prevent the AC component and noise from being accumulated in the power supply voltage (5.4 to 5.8 V) 237 supplied to the control IC 213. In addition, when the transistor (2SA1162) 205 is turned off, the power supply voltage (5.4 to 5.8 V) 237 is slowly reduced with a time constant. The pyrotechnics (IGN1) 14A and the pyrotechnics (IGN2) 14B consume a large current, and have an effect of guaranteeing even if the battery voltage 230 of the battery 23a instantaneously drops. The capacitor (1 μF) 207 can be omitted. Alternatively, a resistance of 10 kΩ to 100 kΩ can be used instead. When using pyrotechnics that consume more power than in the present embodiment, it is necessary to gradually increase the capacitor (1 μF) 207 to stabilize the operation of the control IC 213.

A resistor (10 kΩ) 209 is a resistor that normally sets the voltage 238 of the input port (pin number 2, GP5) that receives the ignition signal of the control IC 213 to the power supply voltage 237. When the firing switch (SW2a) 24B is turned ON, the voltage 238 of the input port (pin number 2, GP5) that receives the ignition signal of the control IC 213 becomes 0V. At that time, it has a function of limiting the current so that an excessive current does not flow through the firing switch (SW2a) 24B.
When the power supply self-holding control signal of the control IC 213 is supplied to the transistor (2SC2112) 206, the resistor (2.2 kΩ) 210 does not adversely affect the control IC213 and the transistor (2SC2112) 206 due to excessive current flowing. It is resistance to do.
The firing switch (SW2a) 24B is a switch that forms a pair with the firing switch (SW1a) 24A. When the firing switch (SW2a) 24B is pressed, the input port (pin number 2, GP5) of the control IC 213 is changed from 5V to 0V.

A capacitor (0.1 μF) (denoted as 104) 212 is a bypass capacitor of the input port (pin number 2, GP5) of the control IC 213. There is an electromagnetic field such as a strong wireless device around, and the malfunction of the control IC 213 is prevented by a high-frequency induced current.
The resistor (10 kΩ) 215 causes the I / O port 5 (GP2) to become unstable when the ignition control transistor (2SC2712) 216 malfunctions or the control IC 213 starts operating due to a strong external radio wave or the like. This prevents the ignition control transistor (2SC2712) 216 from malfunctioning.
The emitter of the ignition control transistor (2SC2712) 216 is connected to the base of the ignition control transistor (2SC2873) 217. The collector of the ignition control transistor (2SC2712) 216 and the collector of the ignition control transistor (2SC2873) 217 are connected to each other. Connected to the product (IGN) 222. That is, the ignition control transistor (2SC2712) 216 and the ignition control transistor (2SC2873) 217 are Darlington-connected. For this reason, when the ignition signal 239 is supplied from the I / O port 5 (GP2) of the control IC 213 via the resistor 214, the two transistors work together to ignite the pyrotechnic (IGN1) 14A. The necessary current (1A or more) 243 flows, and the pyrotechnic (IGN1) 14A is ignited.

The resistors 218, 219, the ignition control transistor (2SC2712) 220, the ignition control transistor (2SC2873) 221, and the pyrotechnic (IGN2) 14B have the same configuration and function.
The land 236 is connected to the base of the transistor (2SC2712) 206 and the minus of the battery 23a. When this is short-circuited, the transistor (2SC2712) 206 is forcibly turned OFF, and the control IC 213 can be forcibly terminated. The land 206 is used for product inspection. Even if the pin 245 of the connector 234 and the pin 250 of the connector 234 are short-circuited, the same effect is obtained.

  As the control IC 213, any control IC that can perform a program operation of one input port, three output ports or more can be used. For example, many control ICs such as PIC of Microchip Technology and H8 of Renesas Technology can be used. The pin IO and the like are based on the detailed description of the control IC shown in Table 1.

In Table 1 and FIG., ICSCLKCLK is a terminal to which a timing signal for distinguishing bit signals of 1 and 0 is written when the control program for the portable liquid ejecting apparatus 1 is written in the control IC 213.
ICSPDAT is a terminal that applies the program as a bit signal of 1 and 0 when the control program of the portable liquid ejecting apparatus 1 is written in the control IC 213.
The transistor (2SC2712) 216, transistor (2SC2873) 217 and transistor (2SC2712) 220, and transistor (2SC2873) 221 used in the ignition circuit receive the ignition signal from the control IC 213 and receive the pyrotechnic (IGN1) 14A, fire Any switching circuit can be used as long as it can flow a current necessary for igniting the work (IGN2) 14B. A switching circuit having a mechanical contact such as a relay, or a semiconductor switching circuit such as a transistor or FET can be used.

In the present embodiment, the battery 23a is used as the power source. However, in addition to the lithium battery, for example, a primary battery such as a manganese battery or an alkaline battery, a Ni—Cd battery, a Ni—H battery, a Pb storage battery, a lithium secondary battery, or the like. Any device that can supply current and voltage necessary for the operation of the control IC 213 and ignition of the pyrotechnic (IGN1) 14A and pyrotechnic (IGN2) 14B can be used.
A lithium primary battery having such characteristics as long-term storage, small size and light weight and capable of supplying a large current is desirable.
In the present embodiment, a power supply voltage of 5 V or more recommended for the operation of the PIC can be secured, and a safety factor with respect to the current 1A required for ignition of the pyrotechnic (IGN1) 14A and the pyrotechnic (IGN2) 14B. Two 2CR5 type cylindrical lithium primary batteries that can supply an ignition current of 2A when viewed twice are used in series.

In general, electric currents of 1A or more are applied to pyrotechnics such as electric detonators used for industrial explosives, ignition balls used for blasting fires, etc., and technical standards of the Explosives Control Law It is stipulated in.
Although the firing switch (SW1a) 24A and the firing switch (SW2a) 24B are used, the firing switch SW can be used as long as it is a contact switch. The basic firing operation is to hold the firing mechanism (trigger) in all firearms such as pistols and rifles. For this reason, a push button switch (commonly called a momentary operation push button switch) incorporating a self-returning spring is desirable.

In this embodiment, since the self-ON / OFF circuit is provided, when the contact of the firing switch (SW1a) 24A is closed, the resistor (2.2 kΩ) 202 and the resistor (2.P) are connected to the base circuit 233 of the transistor (2SA1162) 205. The voltage of the battery 23a divided by 1/2 by 2kΩ) 203 acts. Then, when a voltage is supplied to the base circuit 233 of the transistor (2SA1162) 205 by the resistor (2.2 kΩ) 202 and the resistor (2.2 kΩ) 203, the emitter-collector becomes conductive, and the power supply circuit (5. (4 to 5.8 V) 237 is supplied with voltage.
Since the two-circuit type having contacts that operate simultaneously is used for the firing switch (SW1a) 24A and the firing switch (SW2a) 24B, the circuit activation switch is also used.

  In this embodiment, if the control IC 213 with sufficiently low current consumption and a battery with a sufficiently large current capacity are combined, this circuit is not necessary when the control IC 213 is always in a standby state. Alternatively, this circuit is unnecessary when a switch for turning ON / OFF the control IC 213 is provided.

Considering the safety that costs, costs, and batteries are not exhausted when they are used, considering the simplicity that operations are concentrated in one push button switch at the same time, a two-circuit type push button switch is used. It is desirable to use it.
When the firing switch (SW1a) 24A and the firing switch (SW2a) 24B are separate switches, the firing switch (SW1a) 24A becomes an activation switch / activation switch / safety release switch for the device, and the firing switch (SW2a) 24B is a firing-only switch. become. The use of such a two-stage operation method is also possible.

Next, elimination of malfunction factors that occur during handling, such as drop impact, will be described.
1) Elimination of cause of malfunction during storage standby Even if the firing switch (SW1a) 24A closes for a moment due to a drop impact (a kind of chattering phenomenon), the control IC 231 controls the operation of the firing switch (SW2a) 24B. If the firing switch (SW2a) 24B is not turned ON for 10 ms or longer continuously, the ignition sequence of the pyrotechnics (IGN1) 14A and the pyrotechnics (IGN2) 14B will not be transferred to even if there is a drop impact. Or, even if repeated drop impacts are applied, no malfunction occurs.

2) Elimination of cause of malfunction during standby operation During the standby operation, the contact of the firing switch (SW2a) 24B is constantly monitored, and it is determined that the firing is performed when the contact is continuously turned on for 10 ms or longer. For this reason, there is no false launch due to a drop impact even during standby.

3) Supplementary items General countermeasures against drop impacts include (a) mechanical circuit lock, (b) impact detection sensor, etc., to distinguish between impact and firing signals.
(A) is costly and needs to be unlocked when launched. In the case of the repetitive type, there is a drawback that the shock becomes defenseless once the lock is removed.
In (b), an expensive impact detection sensor or the like is required, and in order to detect impact in all directions, the sensor requires three axes of x, y, and z. A comparator circuit for determining impact is also required.

4) Characteristics of switches Switches with mechanical contacts normally hold the contacts open and closed by the force of a spring. For this reason, when a strong impact such as dropping is applied, the contact point may contact for a moment on the order of microseconds to milliseconds. On the other hand, pyrotechnics ignite even when energized in the order of microseconds. Therefore, in the circuit of direct power ⇒ switch ⇒ pyrotechnics, it is inevitable that this contact will accidentally fire due to a momentary contact.
If this characteristic is reversed, small to medium switches do not have a malfunction mode in which a contact point exceeding 2 to 3 ms is in contact. Therefore, it is determined as a firing signal with 10 ms as a threshold.
Some large switches that handle large electric power do not have a momentary contact due to a drop impact, but are excluded because they cannot be used in the portable invention.

2. By using the bypass capacitors (7) and (8) of the control IC (13) for eliminating malfunction factors that occur when used near powerful radio wave sources such as police radio, the bypass capacitor (12) of the ignition control signal Bypassing the induced current from radio sources such as wireless, malfunction is prevented.
3. Extensibility 1) Use of control IC 213 The control IC 213 is a programmable IC. Therefore, it is easy to change the design such as increasing the determination time for preventing malfunction from 10 ms to 20 ms at the time of design change or component change.

2) This device can ignite many pyrotechnics by increasing the output port of a small detonator or control IC, or increase the input port of the control IC, so that several launch switches It has expandability such as igniting when turned on at the same time or turned on in order.
Relationship between Transistors 216 and 217 and Transistors 220 and 221 This connection method is a connection method called Darlington connection.
The output of the control IC 213 is a digital signal value (Hi, Low), and the current that can be extracted as a current is in the order of mA. As it is, it is impossible to obtain A-order current and power necessary for ignition of the pyrotechnics 14A and 14B. In order to switch such a current with a transistor, an amplification factor of more than 1000 times is required. A single transistor with an amplification factor of 1000 times or more and a current that can flow is 1 A or more is not sold. Therefore, Darlington connection is performed as a method of increasing the amplification factor (DC amplification factor: hfe).

Since the transistors 216 and 217 and the transistors 220 and 221 are Darlington connected, the two transistors behave like one transistor, and the amplification factor is approximately the product of the current amplification factors of the two transistors. .
Since the amplification factor of the transistor (2SC2712) 216 is 70 to 700, and the amplification factor of the transistor (2SC2878) 217 is 70 to 240, the product of both is 4900 or more. The allowable current is also 2A.

In the present embodiment, the program monitors the changes of Hi (1, about 5 V in binary number) and Low (0, 0 V in binary number) of the input port of the control IC 213 and performs a predetermined operation described in the program. Operates (self-holding of power supply, ignition operation).
Predetermined operations (self-holding of the power supply, ignition operation) are performed by the operation of the peripheral circuit due to changes in Hi (1, about 5 V in binary number) and Low (0, 0 V in binary number) of each output port of the control IC 213. To change.

Hereinafter, the relationship between Hi (1 in binary number, about 5V), Low (0, 0V in binary number), and the firing switch (SW2a) 24B of the input port of the control IC 213 will be described.
Case (1): Launch switch (SW1a) 24A is OFF ⇒ Battery 23a is OFF
⇒ Control IC 213 is OFF = Standby state without power consumption Case (2): Launch switch (SW1a) 24A is ON ⇒ Battery 23a is ON ⇒ Control IC 213 starts function

Case (1): Fire switch (SW2a) 24B is OFF => Input port of control IC 213 is Hi
Case (2): Firing switch (SW2a) 24B is ON => Input port of control IC 213 is Low
Here, the firing switch (SW1a) 24A and the firing switch (SW2a) 24B are in the same package, and a switch that is turned on when the push button is pressed is standard.

That is, there is only a combination of case (1) / case (1) or case (2) / case (2).
When the firing switch (SW1a) 24A and the firing switch (SW2a) 24B are separate switches, the firing switch (SW1a) 24A is a switch that only activates the control IC 213 (the activation switch and safety release switch and Call).
The firing switch (SW2a) 24B is a switch that only gives a firing signal to the control IC 213.

The relationship between the voltage of the ignition signal port 239 (pin number 5, GP2) and the operation of the Darlington-connected transistor (2SC2712) 216 and transistor (2SC2873) 217 for controlling ignition is as follows.
Ignition signal Low → Darlington connection transistor = OFF → Pyrotechnic (IGN1) 14A is not ignited.
Ignition signal Hi → Darlington connection transistor = ON → Pyrotechnic (IGN1) 14A is ignited.

Next, the firing control signal (operation of the firing switch) will be described with reference to FIG.
The operation of the input port voltage 238 (pin number 2, GP5) of the control IC 213 will be described.
1) The relationship with the ON / OFF operation of the firing switch (SW2a) 24B will be described.
Here, it is shown as a voltage change of the input port voltage (pin number 2, GP5) of the control IC 213 when the firing switch (SW2a) 24B is pushed with the intention of firing.

When the firing switch (SW2a) 24B is OFF, since the resistor (10 kΩ) 209 is connected to the power supply voltage (5.4 to 5.8 V) 237, the power supply voltage (5.4 to 5.8 V) ( Since the input port voltage (Pin No. 2, GP5) is applied to the control IC 213 through the resistor (10 kΩ) 209 through the resistor (10 kΩ) 209, the “Hi (about 5 V) state” is set. ing.
When the firing switch (SW2a) 24B is pressed, the contact is closed, and the voltage of the input port (pin number 2, GP5) of the control IC 213 is forcibly connected to a minus (ground side voltage expressed by Vss) 250. And becomes Low (0 V).
When the firing switch (SW2a) 24B is released again, it returns to Hi.

When the firing switch (SW2a) 24B is OFF, it has a logical relationship of Hi (5V) and ON (Low) (0V).
2) A case where a drop impact is applied to the firing switch (SW2a) 24B will be described with reference to FIG.
FIG. 18 shows a voltage change of the input port voltage (pin number 2, GP5) of the control IC 213 when a drop shock wave is applied to the firing switch (SW2a) 24B and the contact is closed for a moment (dancing).

If a drop impact is applied to the firing switch (SW2a) 24B, the contact may close for a moment and become Low, but the program of the control IC 213 is not a firing signal unless Low continues for 10 ms or longer. By distinguishing with, misfire can be avoided.
Next, the effect of the capacitor (0.1 μF (104)) 212 will be described with reference to FIG.
FIG. 19 shows a waveform when the launch switch (SW2a) 24B, its connection lead wire, and a printed circuit board are guided by a surrounding wireless device. 19A shows a case where the capacitor (0.1 μF (104)) 212 is not provided, and FIG. 19B shows a case where the capacitor (0.1 μF (104)) 212 is provided.

The capacitor (0.1 μF (104)) 212 has a property common to various capacitors that allows alternating current (high frequency) to pass but does not allow direct current to pass.
By utilizing this property, the input port voltage (pin number 2, GP5) of the input circuit of the control IC 213 has an effect of removing high-frequency noise induced from powerful radio waves or the like.
As shown in FIG. 19A, even if high-frequency noise is induced in the input port voltage (pin number 2, GP5) of the control IC 213 by operation near a radio device or the like, capacitors (0. Since 1 μF (104)) 212 is bypassed between signal 238 and minus 250, the voltage including noise is applied to the input port voltage (pin number 2, GP5) of control IC 213 as shown in FIG. 19B. It is not applied and there is no risk of misfire.

Next, the ignition control signal will be described.
The operation of the output port voltage (pin number 5, GP2) 239 of the control IC 213 has the following relationship with the operation of the firing switch (SW2a) 24B.
The operation of the input port voltage (pin number 2, GP5) 239 of the control IC 213 is shown in FIG.
When the firing switch (SW2a) 24B is pressed again after energizing and firing the pyrotechnic (IGN1) 14A, the ignition port voltage (pin number 3, GP4) 241 of the pyrotechnic (IGN2) of the control IC 213 is the same. Control is ignited.

Next, the operation of the self-holding power supply will be described.
The firing switch (SW1a) 24A is a switch that controls activation of the control IC 213. However, since the firing switch (SW1a) 24A is a push button switch, it fires the first shot and turns off in a state waiting for the second shot. If even the control IC 213 is turned off once it is turned off, the program is also stopped, and the next signal (counter, counter flag) for the second shot is also extinguished. To prevent this, once the control IC 213 starts up normally, the control IC 213 itself sets the self power holding output port (Pin No. 6, GP1) to Hi and turns on / off the firing switch (SW1a) 24A. It is a function that allows control to continue regardless.

Specifically, when the self-holding control output port (pin number 6, GP1) is turned on, the transistor (2SCC2712) 206 is turned on via the resistor (2.2kΩ) 210, and the firing switch (SW1a) 24A is turned on. Has the same effect as
That is, while the self-holding control output port (pin number 6, GP1) 231 is turned on by the program, the control IC 213 is kept in the ON state.

1) The relationship between the ON / OFF operation of the firing switch (SW1a) 24A and the base 233 voltage of the transistor (2SA1162) 205 is shown in FIG.
FIG. 21 shows the voltage change of the base voltage of the power supply self-holding operation transistor (2SA1162) 205 when the firing switch (SW1a) 24A is pushed with the intention of firing.
When the firing switch (SW1a) 24A is OFF, no voltage is applied, but when the firing switch (SW1a) 24A is ON, the voltage is halved by the resistor (2.2kΩ2) 202 and the resistor (2.2kΩ) 203. The battery voltage 230 is applied and becomes Hi (about 3 V).
When the firing switch (SW1a) 24A is released, it returns to 0V.

2) A case where a drop impact is applied to the firing switch (SW1a) 24A will be described with reference to FIG.
When a drop impact is applied to the firing switch (SW2a) 24B, the contact is momentarily closed and a voltage is applied to the power supply self-holding operation transistor (2SA1162) 205, but the control IC 213 program continuously 10ms to 50ms (program As long as it does not continue, it can be distinguished from a signal that does not self-hold.
When the control IC 213 holds the power supply by itself, a power supply holding signal is output to the pin number 6 and GP1, the transistor (2SC2712) 206 is turned on, and the power supply is held by itself.

When the transistor (2SC2712) 206 is turned on, as shown in FIG. 24, the power supply is self-maintained regardless of the operation of the firing switch (SW1a) 24A.
Next, the operation flow and program flow of the portable liquid ejecting apparatus 1 will be described with reference to FIG.
The counter is a program concept that distinguishes between shooting the first shot and shooting the second shot.
If three-shot or four-shot is used, the same number of output control ports and Darlington-connected transistors are required.

1. Standby state (storage state)
The firing switch (SW1a) 24A is OFF and the control IC 213 is OFF (step S1 in FIG. 25). It is in this state during normal storage, transportation and carrying.
2. Starting of the apparatus The firing switch (SW1a) 24A is turned on, and power is supplied to the control IC 213 (steps S2 and S3 in FIG. 25). The control IC 213 is activated and the program is executed.
When the firing switch (SW1a) 24A is pressed, the control IC 213 confirms whether or not the ON is continued for 30 ms in order to confirm the intention of launching. When it is confirmed, the control IC 213 is turned ON (self power supply holding start).

While the control IC 213 waits for 30 ms, the control IC 213 confirms the following 1) and 2).
1) The firing switch (SW1a) 24A continues to be pressed, and this determines whether or not to shift to the firing position (step S5 in FIG. 25).
2) The firing switch (SW1a) 24A is turned ON for a moment = it is a malfunction such as a drop impact, and it is determined whether or not it should return to the standby state (step S4 in FIG. 25).

The difference between 1) and 2) is automatically advanced by the following operations.
While the contact of the firing switch (SW1a) 24A is closed, power is continuously supplied to the control IC 213. When the contact of the firing switch (SW1a) 24A is released, power is not supplied to the control IC 213.
When the firing switch (SW1a) 24A is continuously pressed for 30 ms or longer, the control IC 213 starts holding the self-power supply and proceeds to the next operation (step S5 in FIG. 25).

When the contact of the firing switch (SW1a) 24A is released in less than 30 ms, the power supply of the control IC 213 is turned off and the operation is stopped (steps S5 and S14 in FIG. 25).
The control IC 213 determines an abnormality such as a drop impact depending on whether or not the firing switch (SW1a) 24A is continuously closed for 30 ms or more and prevents a malfunction (steps S4 and S5 in FIG. 25).

If the firing switch (SW1a) 24A is still ON after 30 ms, the self-power holding by the control IC 213 starts (step S6 in FIG. 25).
The control IC 213 initializes the launch counter (step S7 in FIG. 25). Here, pyrotechnic product (IGN1) 14A is designated as a pyrotechnic product of one invention.
The circuit configuration involved in the self power supply holding is a self power supply holding circuit 300.

  The port (pin number 6, GP1) of the control IC 213 becomes Hi when the power supply is kept. The resistor (2.2 kΩ) 210 supplies the Hi signal to the transistor (2SA1162) 205. The transistor (2SA2712) 206 receives the voltage of the control IC 213 via the resistor (2.2 kΩ) 210, and turns on the transistor (2SA1162) 205. The resistor (2.2 kΩ) 202 and the resistor (2.2 kΩ) 203 form a voltage supplied to the transistor (2SA1162) 205 by the resistor (2.2 kΩ) 202 and the resistor (2.2 kΩ) 203. The transistor (2SA1162) 205 is turned on by the transistor (2SA2712) 206 and supplies power to the control IC 213. The lithium power supply 201 supplies power. The capacitor (1 μF) 207 stabilizes the operation of the control IC 213. The capacitor (0.1 μF) 208 stabilizes the operation of the control IC 213. The power of the lithium power supply 201 is supplied to the + power supply terminal (pin number 1, Vdd) of the control IC 213 and the -power supply terminal (pin number 8, Vss) of the control IC 213 via the transistor (2SA1162) 205.

3. At this stage, the program of the control IC 213 is completely activated, and the following determination is made not by the operation of the contact point of the firing switch (SW1a) 24A but by the operation of the firing switch (SW2a) 24B.
The firing switch (SW2a) 24B is continuously pressed for 10 ms or longer, and the control IC 213 confirms whether or not there is an intention to launch (step S8 in FIG. 25).
The circuit configuration involved in the confirmation of the intention to launch is a firing determination circuit (ignition intention determination unit) 301.

Note that the firing determination circuit (ignition intention determination unit) 301 also determines whether the firing switch (SW2a) 24B after firing is OFF.
The port of the control IC 213 (pin number 2, GP5) is Hi for standby and Low for launch. The resistor (10 kΩ) 209 generates the voltage of the fire signal at the input of the fire switch (SW2a) 24B. The firing switch (SW2a) 24B is an interface that conveys the intention of firing the push button from the person to the device. The capacitor (0.1 μF) 212 removes high frequency noise.

1) When the firing switch (SW2a) 24B is continuously ON for 10 ms or longer, the control IC 213 determines that there is an intention to launch, and fires the ignition circuit (IGN) designated by the firing counter as ON (FIG. 25). Steps S10 and S11). When the counter value is 1, firing is performed by turning on the pyrotechnics (IGN1) 14A, and if the counter is 2, firing the pyrotechnics (IGN2) 14B.
The circuit configuration corresponding to this is a first firing circuit (ignition circuit) 302 and a second firing circuit (ignition circuit) 303.

In the first firing circuit (ignition circuit) 302, the port (pin number 5, GP2) of the control IC 213 becomes Hi when firing. Resistor (10 kΩ) 214 provides a firing signal to transistor (2SC2712) 216. The transistor (2SC2712) 216 and the transistor (2SC2873) 217 are turned on / off by the Darlington connection. The pyrotechnic (IGN1) 14A ignites and operates when a predetermined current flows.
In the second firing circuit (ignition circuit) 303, the port (pin number 3, GP4) of the control IC 213 becomes Hi when firing. Resistor (10 kΩ) 218 provides a firing signal to transistor (2SA2712) 220. The transistor (2SC2712) 220 and the transistor (2SC2873) 221 are turned on / off by the Darlington connection. The pyrotechnic (IGN2) 14B ignites and operates when a predetermined current flows.

2) When the firing switch (SW2a) 24B is ON for less than 10 ms, the control IC 213 determines that the firing switch (SW2a) 24B has been pressed once to press fire, but subsequently received a drop impact. Then, it does not fire (steps S8 and S9 in FIG. 25). In particular, it prevents a malfunction due to a drop of time before hitting the first shot and shooting the second shot.
4). Determination of completion of firing and preparation of next bullet The control IC 213 monitors the state of the firing switch (SW2a) 24B after firing, and if it is OFF for 50 ms or longer (releases the hand from the switch), it determines that the firing is complete, and the next bullet (Step S13 in FIG. 25).

Specifically, advance the launch counter by one; Return to firing judgment and launch.
The circuit configuration involved in this firing completion determination (launching completion determination unit) and preparation for the next bullet is a firing determination circuit (ignition intention determination unit) 301.
The port of the control IC 213 (pin number 2, GP5) is Hi for standby and Low for launch. The resistor (10 kΩ) 209 generates the voltage of the fire signal at the input of the fire switch (SW2a) 24B. The firing switch (SW2a) 24B is an interface that conveys the intention of firing the push button from the person to the device. The capacitor (0.1 μF) 212 removes high frequency noise.

5. Treatment at the time of shooting, treatment at the time of standing for a long time When n shots are shot at the time of n shooting, the self-power holding is released and the operation is ended.
The circuit configuration involved here is a self-power holding circuit 300.
Regardless of how many shots are made using the timer method, the self-power holding can be canceled and the operation can be ended after a certain period of time.

Next, the operation of the portable liquid ejecting apparatus 1 according to this embodiment will be described.
First, assembly of the portable liquid ejecting apparatus 1 according to this embodiment will be described.
As shown in FIGS. 2 and 10, the two injection devices 10 are inserted into the insertion holes 28 of the portable launching device 20 from the wedge portion 14 w, and are inserted into the socket assembly portions 22 a and 22 b of the portable launching device 20. By engaging the respective wedge portions 14w with the provided sockets 22c and 22d, the two injection devices 10 can be moved in a state where the nozzle portion 16 protrudes from the insertion hole 28 as shown in FIGS. Assembly to the portable launcher 20 is complete.

  As shown in FIG. 9, the wedge portion 14w and the sockets 22c and 22d are connected to the positive leg 14j1 of the wedge base 14n of one injector 10 and the positive terminal 22c1 of the socket 22c. Similarly, the negative leg 14j2 of the wedge base 14n and the negative terminal 22c2 of the socket 22c are connected. The plus side leg 14j1 of the wedge base 14n of the other injection device 10 is connected to the plus side terminal 22d1 of the socket 22c. Similarly, the minus side leg 14j2 of the wedge base 14n and the minus side terminal of the socket 22d are connected. 22d2 is connected.

Thus, the assembly of the portable liquid ejecting apparatus 1 is completed by attaching the two ejecting apparatuses 10 to the portable launching apparatus 20.
In the portable liquid ejecting apparatus 1, the user can operate the switch 24a at any time by inserting a finger from the windows 21c and 22h. In order to prevent erroneous operation, the safety cover 26 can be slid to close the windows 21c and 22h.
Next, the operation of the portable liquid ejecting apparatus 1 will be described.
In the standby state, power is not supplied to the control IC 213. The lithium power source 201 is OFF and the power source is not consumed. It is in this state during normal storage, transportation and carrying.

  In this state, when the user encounters a suspicious person or the like, when the user Y presses the switch 24a of the portable liquid ejecting apparatus 1 against the suspicious person X, as shown in FIG. The injection device 10 is energized, the current of the battery 23a passes through the leg wires 14j1 and 14j2, the energizer wire 14t of the non-explosive pyrotechnic gas generator 14 is energized, the bridge wire 14t generates heat, and the igniting agent 14e The gas generating agent 14c is combusted by the ignition of the igniting agent 14e, the gas generator tube 14b is broken by the generated gas, the gas pressure is released, and the gas pressure is released as shown in FIG. The gas pressure pushes the piston 13, the piston 13 pushes the spray 12, and the pushed spray 12 breaks the seal 18 and is ejected to the outside from the nozzle 16 a (see FIG. 25). Here, the force for breaking the seal 18 is about 1 to 3 kgf.

As shown in FIG. 13B, when the piston 13 reaches the adapter 17, the gas pressure passes through the gap between the adapter 17 and the piston 13, and the residual pressure is released to the outside.
On the other hand, in switch part 24, after energization to one injection device 10, the program of a switch circuit switches to the other injection device 10 side (refer to Drawing 25).

  In this state, as shown in FIG. 12B, when the user Y presses the switch 24a again, the other injector 10 is energized, and the current of the battery 23a passes through the leg lines 14j1 and 14j2. The electric bridge wire 14t of the non-explosive pyrotechnic gas generator 14 is energized, the electric wire 14t generates heat, the igniting agent 14e is ignited, and the gas generating agent 14c is combusted by the ignition of the igniting agent 14e. As a result, the gas generator tube 14b is broken and the gas pressure is released. As shown in FIG. 13A, the released gas pressure pushes the piston 13 and the piston 13 pushes the injection 12 and is pushed. The projectile 12 breaks the seal 18 and is ejected to the outside from the nozzle 16a.

On the other hand, the switch unit 24 switches the program of the switch circuit to the one injector 10 side after energizing the other injector 10 (see FIG. 25).
Thus, since the portable liquid ejecting apparatus 1 according to the present embodiment can perform the ejection of the ejected matter 12 twice against the suspicious person X, it is possible to self-defense.
And after using the two injection apparatuses 10, the two injection apparatuses 10 after use are extracted from the portable launching apparatus 20, and the new injection apparatus 10 is each mounted in the portable launching apparatus 20.

Thereby, the portable liquid ejecting apparatus 1 according to the present embodiment can be put into a usable state again.
The battery 23a is replaced by removing the screw 21a and removing the case 21B from the case 21A.

Next, in the portable liquid ejecting apparatus 1 according to this embodiment, the optimum conditions for the clearance between the piston 13 (outer diameter, length, groove size) and the inner diameter portion (inner diameter, inner diameter length) of the adapter 17 were examined.
Examine the relationship between the piston and adapter with which the pressure relief mechanism functions.
In FIG. 14A, an operation test was performed to check whether the pressure release mechanism functions according to the conditions of the gas flow path portions indicated by [1], [2] and [3].
The results are shown in Table 2, Table 3, and Table 4.

表２に示す結果から、ピストン長＜アダプタ内径長が求められた。 [1] Relationship between piston length and adapter inner diameter length

From the results shown in Table 2, piston length <adapter inner diameter length was obtained.

表３に示す結果から、ピストン外径＜アダプタ内径が求められた。 [2] Relationship between piston outer diameter and adapter inner diameter

From the results shown in Table 3, piston outer diameter <adapter inner diameter was obtained.

表４に示す結果から、ピストン外周からノズルへの流路が確保できる形状であれば溝形状に制限はないことが求められた。 [3] Pressure release groove shape of piston

From the results shown in Table 4, it was determined that there is no limitation on the groove shape as long as the flow path from the outer periphery of the piston to the nozzle can be secured.

The evaluation in each table is indicated by ○ and ×.
○: No injection material remains in the injection device. (Pressure release mechanism worked)
X: The injection thing remains in an injection device. (If the pressure release mechanism works, there will be no remaining propellant in the injector.)

From the above, the relationship between the adapter 17 and the piston 13 in which the pressure release mechanism functions is as follows.
Piston length <Adapter inner diameter length Piston outer diameter <Adapter inner diameter The groove shape is not limited as long as the flow path from the piston outer periphery to the nozzle 16a can be secured.

Next, in the portable liquid ejecting apparatus 1 according to the present embodiment, an ejection test is performed by changing the nozzle diameter and the ejected matter viscosity condition, and the ejecting is performed under the conditions of the nozzle diameter φ1.5 mm to 3 mm and the ejected matter viscosity of 6 to 40 dPa · s. Confirmed that the situation was good.
Find the optimal spraying conditions (nozzle diameter, jetted product viscosity).

Test Method As shown in FIG. 15 (a), an injection device is fixed on one side, and a plate on which A3 paper is pasted is installed at a position 5 m from the injection device.
The state of adhesion of the ejected matter ejected from the ejecting device to the A3 sheet is confirmed.

Nozzles are difficult to diffuse during nozzle injection, and the nozzle diameter that can be injected is determined.
The nozzle diameter is changed using a one-hole straight nozzle so that the sprayed material is difficult to diffuse.

The propellant viscosity, which is difficult to diffuse during spraying and can be sprayed, is determined.
In order to perform the test by adjusting the viscosity, the gelling agent was added to the ink diluted with water in the test, and the viscosity was adjusted by the amount added.
Gelling agent: Xanthan gum Solvent: Indian ink + water

The graph shown in FIG. 15B shows the relationship between the amount of gelling agent added and the viscosity under the above conditions, and the relationship varies depending on the type of gelling agent and the type of solvent. The propellant viscosity was measured at 20 ° C.
Result Evaluation As shown in FIG. 15 (c), the ejection result was evaluated by ◯ × according to the state of adhesion of the ejected matter to the A3 paper.

表５において、
※１．ガス発生剤薬量０．３ｇ〜０．５ｇで試験
※２．噴射物量は最大６ｍｌで試験 The results are shown in Table 5.

In Table 5,
* 1. Test with a gas generant dose of 0.3 g to 0.5 g * 2. Tested with a propellant volume of up to 6 ml

From the above, the optimum injection conditions are as follows.
Nozzle diameter: Straight forward single-hole nozzle with a diameter of φ1.5 to 3 mm Projected matter viscosity: 6 to 40 dPa · s
In the above-described embodiment, the case where the piston 13 and the adapter 17 are provided with the pressure adjusting mechanism for releasing the gas pressure from the nozzle portion 16 to the outside when the piston 13 collides is described. However, the present invention is not limited thereto. For example, as shown in FIG. 16, a plurality of pressure release grooves 17 d connected to the inner wall of the adapter 17 and the piston receiving surface 17 c may be used.

In the present embodiment, the variables shown in Table 6 described for the case where the two injection devices 10 are fired are used.
The present invention is not limited to this, and it is possible to launch n shots. In that case, the variables shown in Table 7 may be used.

Here, in this embodiment, the grounds for determining each waiting time of the portable liquid ejecting apparatus 1 will be described.
As described above, a switch of a type that presses a movable contact with a spring, such as a push button switch such as a firing switch (SW1a) 24A and a firing switch (SW2a) 24B, which is adopted in the present embodiment, There is a phenomenon called chattering where the contacts close for a moment due to a drop impact.
This chattering phenomenon includes not only a pattern that is turned ON when the switch is OFF, but also a pattern that is OFF for a very short time when the contact is opened momentarily when the switch is ON. Further, the contact may be turned ON / OFF several times when switching from ON to OFF.

In general, the case where the power is turned off for a moment when the power is turned on lasts longer than the case where the power is turned on for the time. For example, the former is about 1 ms instantaneous ON is 1 or 2 times, and the latter is about 1 ms instantaneous OFF is 4 or 5 times.
In the present embodiment, the standby time is adjusted in consideration of the characteristics peculiar to chattering of the switch.
1. Waiting time at startup (30 ms)
It is waiting for a time to prevent the switch in the OFF state from firing accidentally due to a drop impact or the like.

When the main body is dropped on the ground, it may bounce a few times, so it takes a long time to prevent malfunctions caused by a few consecutive impacts.
That is, it is necessary to consider about 3 ms.
However, if it is too long, the shooter will feel a time lag when launching. The human has pushed ⇒ It starts to feel the time lag of launching from about 50 ms with a sensitive person. Therefore, the feeling did not deteriorate, and the safety factor against dropping was about 10 times and was set to 30 ms.

2. Launch determination (10ms)
Even in the state of shooting the first shot after shooting the first shot, it is necessary to keep safety against dropping impact just in case.
However, since this state is already a shooting system, the situation is different from dropping it carelessly. Therefore, considering the safety factor of about 3 times, it was set to 10 ms.

3. OFF judgment (50ms)
If the OFF determination is not performed, it is not known whether or not the first shot has been completed.
The speed at which the switch is released varies from person to person. In the case of a person who releases slowly, chattering may occur for about 5 ms. Furthermore, there is a switch characteristic that chattering when the switch is turned from ON to OFF is longer than when the switch is turned on.
If this ON / OFF is mistakenly recognized as the second shot, it will be fired continuously. Therefore, the safety factor was set to 50 ms when viewed about 10 times.

Moreover, although this embodiment demonstrated the case where two discharges were performed, this invention is applicable not only to this but when performing three or more discharges. In this case, for example, the following flow is used.
This time, it is determined how many shots to fire, and if it is the second launch, the launch port (pin number 5, GP2) connected to the pyrotechnic (IGN2) 14B is set to Hi. It is determined whether or not the firing switch (SW2a) 24B has been turned off (= whether or not the input port has returned to Hi), and if it is confirmed that the firing switch (SW2a) 24B has returned, the firing counter is incremented by one (next is the third shot) .

Next, it is continuously monitored that the firing switch (SW2a) 24B is pushed again (= the input port becomes Low).
Next, it is determined whether or not the firing switch (SW2a) 24B has been turned off (= whether or not the input port has become Low), and if it is confirmed that the firing switch (SW2a) 24B has been turned on, 10 ms or longer If the firing switch (SW2a) 24B is continuously pressed, the process proceeds to a step of determining the number of firings this time.
In the case of n shots, this process is repeated.

(Second embodiment)
26 to 37 show the portable liquid ejecting apparatus 100 according to the second embodiment of the present invention.
The portable liquid ejecting apparatus 100 according to the present embodiment includes two ejecting apparatuses 110 and a portable launching apparatus 120 on which these two ejecting apparatuses 110 are mounted.

First, the two injection devices 110 will be described.
As shown in FIGS. 28 and 29, the two injection devices 110 include a container 111 that fills the injection 112, a piston 113 that presses the injection 112 and injects the injection 112 from the container 111, and a piston 113. A non-explosive pyrotechnic-type gas generator 114 that generates gas pressure to be pressed, a nozzle portion 116 that ejects a spray 112 that is pressed by a piston 113, and a cup that is interposed between the nozzle portion 116 and the container 111. 117. The two injection devices 110 are attached to the container 111 with a Δ seal 119 serving as a mark for mounting on the portable launch device 120.

The same thing as the injection object 12 in 1st embodiment was used for the injection object 112. FIG. Therefore, detailed description is omitted.
The container 111 filled with the propellant 112 is made of, for example, a cylindrical body made of metal such as stainless steel or aluminum, and is provided with a female screw portion 111a into which a non-explosive pyrotechnic gas generator 114 is screwed at one end and the other end. A female screw portion 111b into which the nozzle portion 116 is screwed is provided. In addition, the container 111 is provided with an annular piston receiving surface 111d that protrudes from the inner wall surface toward the center, and serves as a wall surface on which the piston 113 collides.

The inner diameter on the piston receiving surface 111d side is slightly larger than the inner diameter on the piston 113 side to form the pressure release portion 111e. This pressure release part 111e is set as follows based on the relationship between the adapter 17 and the piston 13 in which the pressure release function described in the first embodiment functions.
The length of the piston 113 <the length of the inner diameter of the pressure release portion 111e The outer diameter of the piston 113 <the inner diameter of the pressure release portion 111e The wall surface on the nozzle portion 116 side of the piston receiving surface 111d 112 is sealed so that it does not leak, for example, an abutment surface on which a grooved cup 117 made of elastic synthetic resin is interposed.

  The piston 113 includes, for example, a main body 113a having a cylindrical shape made of plastic such as Teflon (registered trademark), ABS resin, nylon resin, etc., a pressure release groove 113c provided on the front end portion 113b side that presses the spray 112, and a non- A pressure receiving recess 113e provided on the side of the rear end 113d in contact with the gas outlet of the explosive pyrotechnic gas generator 114. The piston 113 is attached to the inner wall surface 111 c on the inner side of the female screw portion 111 a at one end of the container 111.

  The non-explosive pyrotechnic gas generator 114 includes a gas generator 114a, a cylindrical body made of, for example, stainless steel or aluminum, a holder 114o for housing and fixing the gas generator 114a, and an electric bridge wire. A wire mount plug 114k that fixes the embolus 114g and the leg wires 114j1 and 14j2 connected to the plug embedding plug 114g with an epoxy resin and connects the leg wires 114j1 and 14j2 connected to the emery cable plug 114g. It consists of

  For example, the gas generating unit 114a is filled with a gas generating agent 114c in a gas generator tube 114b made of a metal bottomed cylindrical body made of aluminum, and an igniter cup 114d, an igniting agent 114e, and an igniting agent. The holder 114f and the bridge plug with plug 114g are sequentially loaded, and the gas generator tube body 114b is formed by caulking at the portion 114h of the igniter holder 114f and the portion 114i of the bridge plug 114g.

  For example, by using a soft metal material such as aluminum, the gas generator tube 114b can easily destroy the gas generator tube 114b due to the reaction heat and the reaction gas pressure of the gas generating agent 114c which is a non-explosive composition. Can be transmitted to the outside. The gas generator tube body 114b may be anything as long as it is a soft metal material with good workability. For example, the gas generator tube body 114b has the same shape as an electric detonator using copper, so aluminum (for example, A1-6016-0) is used. By using it, the confusingness is removed. The aluminum gas generator tube body 114b is alumite-treated on the inner and outer surfaces.

As in the first embodiment, the gas generator tube 114b is filled with a gas generating agent 114c in a range of 0.3 g to 0.5 g. This gas generating agent 114c was the same as the gas generating agent 14c of the first embodiment. Therefore, detailed description is omitted.
In the gas generator tube 114b, as in the first embodiment, a capsule-shaped igniter cup 114d made of a synthetic resin that serves as a partition wall to prevent mixing of the filled gas generant 114c and igniter 114e. Is arranged. This igniter cup 114d was the same as the igniter cup 14b of the first embodiment. Therefore, detailed description is omitted.

  As in the first embodiment, the igniter cup 114d is inserted into the igniter holder 114f using a thin capsule having a thickness of 0.1 mm or less and a half-cut capsule. In the igniter cup 114d and the igniter holder 114f, an igniting agent 114e composed of a non-explosive composition and an electric bridge wire (for example, a platinum-iridium wire) 114t including a plug-in plug 114g are arranged. The igniting agent 114e was boron / cupric oxide = 10 to 20% by weight / 80 to 90% by weight.

  The plug 114g with a bridge line is inserted after the igniter holder 114f is inserted into the igniter cup 114d and the igniter 114e is filled in the range of 0.06 to 0.13g, and then the gas generating agent 114c is filled. The medicine is pressed into the gas generator tube made of aluminum and fixed to the gas generator tube 114b made of aluminum. The gas generator tube 114b, which is crimped to a plug 114g with a bridge, is inserted into the holder 114o and filled with epoxy resin. The wire mount plug 114k is connected by caulking to the leg wires 114j1 and 114j2 extending from the plug 114g with the electric bridge line. Backward gas ejection when the gas generator 114a ignites is blocked by the epoxy resin filled in the holder 114o.

As shown in FIGS. 33 and 34, the wire mount plug 114k includes a box-shaped plug body 114m provided with a partition wall therein and a partition in the plug body 114m so as to extend to the opening end of the plug body 114m. In the positive side male terminal 114u and the negative side male terminal 114v attached to the wall vertically and the outer top plate of the plug body 114m, the plug body 114m is folded back from the opening end side toward the injection device 110 side in the vertical direction. A locking tongue 114w that is attached in a telescopic manner, a release claw 114x that is attached to the tip of the locking tongue 114w, and a locking projection 114y that is attached in the middle of the locking tongue 114w Have
The holder 114o has an inner wall portion 114p having a gas outlet 114q that fixes the gas generating portion 114a and expands toward the opening side, and a male screw portion 114r is provided on the outer periphery of the opening end portion on the gas outlet 114q side. ing. For example, stainless steel or aluminum can be used as the material of the holder 114o.

The nozzle portion 116 is composed of a one-hole straight nozzle made of a metal such as stainless steel or aluminum, or a hard resin such as ABS resin or nylon resin, and the nozzle hole 116a has a hole diameter of 1.5 mm to 3 mm. The male screw part 116b for connection with the container 111 is provided in the part.
The end surface of the nozzle hole 116a of the nozzle portion 116 is sealed with a circular adhesive seal made of, for example, paper or synthetic resin, in order to identify before and after the operation of the injection device 110 and prevent foreign matter from entering the nozzle portion 116. A seal 118 is affixed.

Next, the portable launcher 120 will be described.
As shown in FIG. 30, the portable launching device 120 can have a portable outer shape by connecting, for example, a split case 121A, 121B made of an injection molded product such as ABS resin or polyacetal resin with a plurality of screws 121a. The container shape is made.
The case 121 </ b> A exposes the nozzle part 116 to attach the two injection devices 110 in a replaceable manner, and the power supply unit 123 supplies power to each of the injection devices 110 attached to the two attachment portions 122. And a power supply unit that is provided between the power supply unit 123 and the injection device 110 and that short-circuits the power supply unit 123 and the injection device 110; Circuit board 125.

The attachment portion 122 includes wire mount sockets 122a and 122b that are coupled to the wire mount plug 114k of each injection device 110, a partition wall portion 122e that rises to oppose the side portion of each injection device 110, and each injection device. 110 includes an O-ring 122f that fixes the front end side portion of the container 111, and a recess 122g that forms an insertion hole 128 of each injection device 110 that exposes the nozzle portion 116. The wire mount sockets 122a and 122b are soldered to the power circuit board 125.
As shown in FIGS. 33 and 34, the wire mount sockets 122a and 122b are vertically attached to a box-shaped socket body 122c provided with a recess for fitting the wire mount plug 114k, and a wall surface of the recess of the socket body 122c. A positive female terminal 122c1 and a negative female terminal 122c2 and a hole 122c3 provided on the ceiling of the socket main body 122c and into which a locking projection 114y attached to the plug main body 114m is fitted. As shown in FIGS. 33 and 34, the wire mount sockets 122a and 122b are attached to a support plate 122d. The support plate 122d includes leg wires (not shown) that connect the + side female terminal 122c1 and the − side female terminal 122c2 of the wire mount sockets 122a and 122b to the power supply circuit board 125.

Here, the connection between the wire mount plug 114k of the injection device 110 and the wire mount sockets 122a and 112b will be described.
FIG. 33 shows a state before connection, and FIG. 34 shows a state after connection.
The positive male terminal 114u of the wire mount plug 114k of the injection device 110 and the positive female terminal 122c1 of the wire mount sockets 122a and 122b are connected. Similarly, the negative male terminal 114v of the wire mount plug 114k and the wire mount are connected. The negative female screws 122c2 of the sockets 122a and 122b are connected. Further, the protrusion 114y of the locking tongue 114w of the wire mount plug 114k enters the hole 122c3 of the wire mount sockets 122a and 122b, so that the wire mount plug 114k and the wire mount sockets 122a and 122b are connected and fixed. .

In the power supply unit 123, electrodes 123c and 123d are arranged to face each other so that the two batteries 123a can be fixed in series. The switch part 124 is provided between the partition wall parts 122e. It protrudes to the side surface of the nozzle unit 116 side of the injection device 110 so that the switch 124a can be pressed.
In the present embodiment, the switch unit 124 has the same configuration as the switch unit 24 of the first embodiment, and a description thereof will be omitted.

The case 121A is surrounded by a rising wall 122i, and a screw boss part 122j for screwing a plurality of screws 121a is provided on the rising wall 122i.
The case 121B has a function as a lid that covers the upper surface side after mounting each component in the case 121A. The case 121B is surrounded by a rising wall 121f and a plurality of screws 121a are inserted through the rising wall 121f. Holes 121b are provided. An opening 121c for exposing the switch 124a is provided on one end of the top plate 121d.

  The case 121B functions as a lid that covers each component after the components are mounted in the case 121A. The case 121B is surrounded by a rising wall 121f, and a plurality of holes 121b for inserting the screws 121a into the rising wall 121f. And a window 121y for attaching a release button is provided on the top plate 121d. As shown in FIGS. 35 and 36, the release button 121g is for removing the injection device 110 from the portable launching device 120, and is an elastic synthetic resin part. A button main body 121h provided with an annular groove 121i and a release convex portion 121j provided at the center of the button main body 121h.

  By pressing the release button 121g, as shown in FIGS. 35 and 36, the convex portion 121j of the release button 121g presses the claw portion 114x provided on the locking tongue piece 114w of the wire mount plug 114k, and the locking tongue The convex part 114y of the piece 114w comes off from the hole part 122c3 of the wire mount sockets 122a and 122b. In this state, the ejection device 110 can be detached from the portable launching device 120 by pulling out the nozzle portion 116 of the ejection device 110 from the portable launching device 120.

In the portable launching device 120, a safety cover 126 that prevents an unexpected operation of the switch unit 124 is attached to the switch unit mounting side surfaces of the cases 121A and 121B.
As shown in FIGS. 36 and 37, the safety cover 126 has a U-shape formed by connecting two cover portions 126a and 126b with a connecting portion 126c having a width equivalent to the thickness of the assembled cases 121A and 121B. In addition, the guides are provided along grooves 121x and 122x respectively provided on the outer surfaces of the partition walls 121f and 122e that form the insertion holes 128 of the cases 121A and 121B on the inner surfaces of the two cover portions 126a and 126b and the connecting portion 126c. A guide 126e provided with the claw portion 126d is provided. A switch 124a is accommodated between the guides 126e.

As shown in FIGS. 26, 27, and 28, near the two insertion holes 128 of the portable launcher 120, the container of the ejector 110 is mounted when the injector 110 is attached to the portable launcher 120. A Δ portion 129 is provided as a mark for aligning the apex position with the Δ seal 119 attached to 111.
Further, near the two insertion holes 128 of the portable launching device 120, numerals 1 and 2 indicating the order of the ejecting devices 110 to be fired are provided.
Further, the portable launching device 120 is provided with a convex part 121j and a concave part 121k that constitute an aiming device on the cover 121A. As shown in FIG. 28, this sighting device has a convex portion 121j as a target position, and the upper surface of the convex portion 121j and the upper surface of the concave portion 121k are in a straight line, thereby aiming at the top and bottom, and the center of the concave portion 121k. Since the convex part 121j comes to the left and right, it is possible to aim at the left and right.

Next, the operation of the portable liquid ejecting apparatus 100 according to this embodiment will be described.
First, assembly of the portable liquid ejecting apparatus 100 according to the present embodiment will be described.
As shown in FIG. 28, the two injection devices 110 are inserted into the insertion holes 128 of the portable launching device 120 from the wire mount plug 114k, and the portable launching device 120 is shown in FIGS. As shown in FIGS. 27, 31, and 32, by connecting to the wire mount sockets 122 a and 122 b, the firing device 120 that can carry the two injection devices 110 with the nozzle portion 116 protruding from the insertion hole 128. Assembling is completed.

  As shown in FIGS. 33 and 34, the wire mount plug 114k and the wire mount sockets 122a and 122b are coupled to each other by connecting the positive male terminal 114u and the wire mount sockets 122a and 122b of the wire mount plug 114k of each injection device 110 as shown in FIGS. The positive female terminal 122c1 is connected, and similarly, the negative male terminal 114v of the wire mount plug 114k and the female terminal 122c2 on one side of the wire mount sockets 122a and 122b are connected. Further, the protrusion 114y of the wire mount plug 114k enters the hole 122c3 of the wire mount sockets 122a and 122b and is fixed.

As described above, the assembly of the portable liquid ejecting apparatus 100 is completed by attaching the two ejecting apparatuses 110 to the portable launching apparatus 120.
The portable liquid ejecting apparatus 100 allows the user to operate the switch 124a on the nozzle unit 116 side of the projecting apparatus at any time. In order to prevent erroneous operation, the safety cover 126 is attached to the switch 124a and the nozzle part 116 side.
In this state, when the user encounters a suspicious person or the like, the safety cover 126 is removed as shown in FIG.

  As shown in FIG. 37, when the user Y points the portable liquid ejecting apparatus 100 toward the suspicious person X and presses the switch 124a, the one ejecting apparatus 110 is energized, and the current of the battery 123a is changed to the leg line. 114 j 1 and 114 j 2 are passed through the non-explosive pyrotechnic-type gas generator 114, and the bridge wire 114 t is heated, the bridge wire 114 t is heated, the igniting agent 114 e is ignited, and the ignition agent 114 e ignites the gas generating agent 114 c. The gas generated by combustion burns the gas generator tube 114b, releases the gas pressure, the released gas pressure pushes the piston 113, the piston 113 pushes the propellant 112, and the pushed propellant 112 The cup 117 is broken, the sealing seal 118 is broken, and the nozzle 116a sprays the outside.

Here, the force for breaking the cup 117 is about 1 to 3 kgf, and the force for breaking the sealing seal 118 is about 0.5 kgf.
When the piston 113 reaches the pressure release portion 111e of the container 111 during the above-described operation, the gas pressure passes through the gap between the pressure release portion 111e and the piston 113, and the residual pressure is released to the outside.
On the other hand, in the switch unit 124, after energization of one injection device 110, the program of the switch circuit is switched to the other injection device 110 side.

In this state, when the user presses the switch 124a again, the other injector 110 is energized, the current of the battery 123a passes through the leg lines 114j1 and 114j2, and the non-explosive pyrotechnic gas generator 114 is energized. The bridge line 114t is energized, the bridge line 114t generates heat, the igniting agent 114e is ignited, the gas generating agent 114c is combusted by the ignition of the igniting agent 114e, and the generated gas breaks the gas generator tube 114b. The gas pressure is released, and the released gas pressure pushes the piston 113, the piston 113 pushes the injection 112, the pushed injection 112 breaks the cup 117, breaks the sealing seal 118, and is injected from the nozzle 116a to the outside. Is done.
On the other hand, after the switch unit 124 energizes the other injection device 110, the program of the switch circuit is switched to the one injection device 110 side.

Thus, since the portable liquid ejecting apparatus 100 according to the present embodiment can perform the ejection of the ejected matter 112 twice against the suspicious person X, it is possible to self-defense.
Therefore, as shown in FIG. 37, the user Y makes full use of the convex part 121j and the concave part 121k that constitute the sighting device provided in the portable launching device 120 to aim up, down, left, and right, and thereby The injection becomes more accurate and self-defense is possible.
And after using the two injection devices 110, the two used injection devices 110 are extracted from the portable launch device 120, and the new injection devices 110 are respectively mounted on the portable launch devices 120.

As shown in FIG. 36, the ejection device 110 is pulled out from the portable launcher 120 by holding the release button 121g of the portable launcher 120 and holding the nozzle portion 116 of the ejection device 110. This is accomplished by pulling it out of the portable launcher 120.
As shown in FIG. 35, by pushing the release button 121g, the claw portion 114x of the wire mount plug 114k of the injection device 110 is pushed, and the convex portion 114y of the wire mount plug 114k becomes the wire mount of the portable launch device 120. The sockets 122a and 122b are removed from the holes 122c3. The injection device 110 can be extracted from the portable launch device 120 by pulling out the injection device 110 in this state.

The injection device 110 can be attached to the portable launching device 120 by attaching a Δ seal 119 attached to the container 111 of the injection device 110 and a Δ portion 129 provided near the insertion hole 128 of the portable launching device 120. This is performed by inserting the injection device 110 into the insertion hole 128 of the portable launching device 120 with the apex positions of the two being aligned.
Thereby, the portable liquid ejecting apparatus 100 according to the present embodiment can be put into a usable state again.
The battery 123a is replaced by removing the screw 121a and removing the case 121B from the case 121A.

Next, in the portable liquid ejecting apparatus 100 according to the present embodiment, the optimum conditions for the clearance between the piston 113 (outer diameter, length, groove size) and the container pressure release portion (inner diameter, inner diameter length) were examined.
In the present embodiment, the function of the adapter 17 in the first embodiment is added to the container 111, and the container 111 is a single component having a pressure release portion 111e, so the piston in which the pressure release mechanism in the first embodiment functions. 13 and the adapter 17 are the same result.
Therefore, also in this embodiment, the same result as the first embodiment could be obtained.

In the above-described embodiment, the case where the pressure release mechanism that releases the gas pressure from the nozzle portion 116 to the outside when the piston 113 collides is configured by the piston 113 and the pressure release portion 111e provided in the container 111 has been described. The present invention is not limited to this. For example, the present invention may be configured by forming a plurality of pressure release grooves connected to the inner wall of the pressure release portion 111e of the container 111 and the piston receiving surface 111d.
Although the case where the pressure release part 111e was provided in the container 111 was demonstrated in the said embodiment, this invention is not restricted to this, For example, as shown in FIG. 39, the container 111 is adapter like 1st embodiment. 17 may be provided.

Moreover, although the said embodiment demonstrated the case where the coupling | bonding of the wire mount plug 114k and wire mount socket 122a, 122b was used for the coupling | bonding of the injection apparatus 110 and the portable launching apparatus 120, this invention is based on this. Not limited to this, as shown in FIG. 38, similarly to the first embodiment, the injection device 110 may be connected to the wedge base portion 14n and the socket 22c.
Moreover, although the said embodiment demonstrated the case where a sight was comprised with the convex part 121z and the recessed part 121k, this invention is not restricted to this, For example, it replaces with the recessed part 121k by the side of a recessed part, as shown in FIG. It is also possible to provide two convex portions 121m and to aim at the convex portion 121z coming to the center of the two convex portions 121m. Further, as shown in FIG. 41, a ring portion 121n may be provided instead of the recess 121k, and the projection 121z may be aimed at the center of the circle of the ring portion 121n. Furthermore, as shown in FIG. 42, a laser pointer 121o may be attached and aimed.

In the above embodiment, the case where the safety cover 26 or 126 is made detachable has been described. However, the present invention is not limited to this, and as shown in FIG. 43, it can be opened and closed by a hinge (not shown). A connecting member 126f connected to a hinge (not shown) may be provided so that it can be opened and closed by the hinge (not shown).
Moreover, although the case where the safety cover 26 or 126 was made detachable was described in the above embodiment, the present invention is not limited to this, and the safety cover 26 or 126 may be slid sideways.

Further, the present invention may be a generally known automatic pistol type portable liquid ejecting apparatus 150, 160, 170 as shown in FIGS. 44 to 46, for example.
44 to 46, barrel portions 151, 161, and 171 are portions into which the cartridge-like ejection devices 10 and 110 of the portable liquid ejection devices 150, 160, and 170 are loaded. In the automatic pistol, this is a metal tube having a rifle (spindle), but in the portable liquid ejecting apparatuses 150, 160, and 170 according to the present embodiment, the cartridge-shaped ejecting apparatuses 10 and 110 are loaded.

If it is a single shot type, one cartridge-like injection device 10, 110 is loaded in one barrel.
In the case of the two-shot type, one cartridge-like injection device 10 or 110 is loaded on each barrel arranged horizontally or vertically.
The barrel is a metal cylinder without a rifle that holds and protects the cartridge-like injection devices 10 and 110, and a connector for electrically connecting the control circuit board and the liquid injection pyrotechnics and the control circuit board to the bottom of the barrel. Have.

The grip portions 152, 162, and 172 are portions that are gripped by the hand. In the automatic pistol, a magazine containing bullets is loaded here, but the portable liquid ejecting apparatus 150, 160, 170 according to the present embodiment incorporates a battery and a control circuit board.
The triggers 153, 163, and 173 are portions that are pulled with fingers for firing. The automatic pistol has a complicated link mechanism for hitting a mechanically ignited detonator and firing bullets. However, in the portable liquid ejecting apparatus 150, 160, 170 according to this embodiment, for example, an electrical A push button switch forming a firing circuit is attached to the triggers 153, 163, and 173. If the head of the push button switch is a size that fits on a finger, the push button switch may be disposed at a position corresponding to the triggers 153, 163, and 173.

In the case of the two-shot type, the electronic circuit is the same as that used in the above embodiment except for the appearance and the arrangement of the cartridge-like injection devices 10 and 110.
In the switch control circuit 200 shown in FIG. 17, two transistors (2SC2712) 216, two transistors (2SC2873) 217 and two transistors in which ignition circuits of pyrotechnics (IGN1) 14A and pyrotechnics (IGN2) 14B are Darlington connected. Although the case where the transistor (2SC2712) 220 and the transistor (2SC2873) 221 are configured has been described, the present invention is not limited thereto, and a small relay, thyristor, FET (MOS-FET), or the like can be used.

  47 shows that the relay 1 is provided in place of the two Darlington-connected transistors (2SC2712) 216 and the transistor (2SC2873) 217 connected to the port (pin number 5, GP2) of the control IC 213, and the port of the control IC 213 ( Instead of two Darlington-connected transistors (2SC2712) 220 and transistor (2SC2873) 221 connected to pin number 3, GP4), relay 2 is provided, and diodes 1 and 2 are provided for each to ignite with a small relay. The example which comprised the circuit is shown.

48, instead of two Darlington-connected transistors (2SC2712) 216 and a transistor (2SC2873) 217 connected to the port (pin number 5, GP2) of the control IC 213, an FET 1 (2SK3462) is provided. A FET (MOS-FET) switching circuit is configured by providing FET1 (2SK3462) instead of two Darlington-connected transistors (2SC2712) 220 and transistor (2SC2873) 221 connected to the port (pin number 3, GP4) An example is shown.
In the present invention, the selection of a transistor is the best measure in terms of cost, safety, and miniaturization.

In the embodiment of the present invention, the case where the multistage ignition device according to the present invention is applied to the switching circuit of the portable liquid ejecting apparatus has been described. However, the present invention is not limited to this, for example, It can be used as an ultra-compact blaster that connects pyrotechnics (electric detonator, electric ignition ball for blasting fire, etc.) and controls these ignitions.
Further, it can be used as a firing device for an electric ignition type gun using an electric ignition type bullet.

1,100,150,160,170 Portable liquid injection device 10,110 Injection device 11,111 Container 12,112 Propellant 13,113 Piston 14,114 Non-explosive pyrotechnic gas generators 14a, 114a Gas generation unit 14k Cap 14o, 114o Holder 14n Wedge base 14j1, 14j2 Leg wire 14A Pyrotechnic (IGN1)
14B Pyrotechnic (IGN2)
16, 116 Nozzle portion 16a, 116a Nozzle 17 Adapter 17c Piston receiving surface 17d Pressure release groove 18 Seal 20, 120 Portable launcher 21A, 21B, 121A, 121B Case 22, 122 Mounting portion 22a, 22b Socket assembly portion 22c, 22d Socket 23, 123 Power supply unit 23a, 123a Battery 24, 124 Switch unit 24a, 124a Switch 24A Launch switch (SW1a)
24B launch switch (SW2a)
25, 125 Power circuit board 28, 128 Insertion hole 111e Pressure release part 114k Wire mount plug 121g Release button 121y Window 122a, 122b Wire mount socket 200 Switch control circuit 202, 203 Resistance (2.2kΩ)
205 transistor (2SA1162)
206 Transistor (2SC2712)
207 condenser (1μF)
208 condenser (0.1μF)
209 Resistance (10kΩ)
210 Resistance (2.2kΩ)
212 capacitor (0.1μF)
213 IC for control
214 Resistance (10kΩ)
216 transistor (2SC2712)
217 Transistor (2SC2873)
218 Resistance (10kΩ)
220 transistor (2SC2712)
221 transistor (2SC2873)
300 Self-power holding circuit 301 Firing determination circuit (ignition intention determination unit)
302 First firing circuit 303 Second firing circuit

Claims (7)

Start switch and safety release switch consisting of a reset switch,
An ignition-only switch that includes a return-type switch and ignites the pyrotechnics;
Multiple pyrotechnics,
A power source for supplying power to the plurality of pyrotechnics;
An ignition circuit that connects the start switch and safety release switch and the ignition dedicated switch to the pyrotechnic, and supplies power from the power source to the pyrotechnic when the ignition dedicated switch is pressed;
A self-power holding circuit that holds the power supply when the start switch and safety release switch are pressed;
When an input signal from the start switch and safety release switch is received, the power source is held by the self-power holding circuit, and each time the pyrotechnics are received each time an input signal is received from the ignition switch, the power source is held. A multistage ignition device comprising: a control circuit that generates an ignition signal, ignites the pyrotechnics through the ignition circuit, and counts the pyrotechnics ignited. The multistage ignition device according to claim 1, wherein
The plurality of pyrotechnics includes a non-explosive pyrotechnic gas generator. In the multistage ignition device according to claim 1 or 2,
In the self-power holding circuit, after the start switch / safety release switch is continuously pressed for a first designated time and the power supply is self-held to start the control circuit, the start switch / safety release switch A multistage ignition device comprising: a determination unit that releases the self-holding of the power source and does not activate the control circuit when the power source is separated within a specified time. In the multistage ignition device according to claim 3,
The self-power holding circuit determines that there is an intention to ignite when the pressing time of the ignition dedicated switch is equal to or longer than a second specified time after the control circuit is activated, and the pressing time of the ignition dedicated switch is A multistage ignition device comprising an ignition intention determination unit that determines that there is no intention to ignite when the time is less than two specified times. In the multistage ignition device according to claim 4,
After the determination by the ignition intention determination unit, the multi-stage ignition device includes an ignition completion determination unit that determines that the ignition is completed when the contact of the ignition dedicated switch is separated by a third specified time or more. . The multistage ignition device according to any one of claims 1 to 5,
The ignition circuit includes two transistors connected in a Darlington connection. The multistage ignition device according to any one of claims 1 to 6,
The start switch / safety release switch and the ignition only switch are integrated, and have two contacts, a contact that separates when pressed, a contact that connects when pressed, and a common contact. A multistage ignition device characterized in that a two-circuit, two-contact switch is formed in the inside.

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