JPH0443725Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a safety device for a chlorate candle igniter.

[Conventional technology]

As shown in FIGS. 2 and 3, a chlorate candle consists of a candle core 1 solidified and molded using chlorate as a main ingredient, and a heat insulating material 2 wrapped around the core 1, enclosed in a metal case 3. One end is covered with an ignition cap 5 via an ignition agent 4, and the cap 5 is covered with an ignition device 6 having a structure similar to a gun detonator, which is defined as a pyrotechnic product for explosives under the Explosives Control Law. A striking mechanism 8 for striking the igniter 6 is attached to the tube end 7 of the metal case 3, and a stopper 10, an absorbent 11, An oxygen outlet 13 is provided at the tube end 9 of the metal case 3 with a filter 12 interposed therebetween.

The igniter 6 in this chlorate candle is assembled by inserting the igniter 15 into the fitting 14 made of brass and caulking the insertion opening 16 as shown in the third figure.
It was configured to be kept inside.

[The problem that the idea attempts to solve]

In the conventional igniter 6, when the igniter 15 is struck by the striking mechanism 8, gas and sparks are instantaneously ejected into the ignition cap 5 through the fire channel 17 of the fitting 14. If the igniter 15 is inserted loosely and the insertion port 16 is not sufficiently caulked, there is a risk that the igniter 15 may fly out of the fitting 14 due to the reaction of the above gas and spark jets, and the head of the igniter 15 may be damaged by a nail. If the tip of the igniter 15 is intentionally pushed strongly with a sharp object, gas or sparks may come out from the head of the igniter 15.

The object of the present invention is to provide a safety device for a chlorate candle igniter that can overcome the above-mentioned conventional drawbacks.

[Means to solve the problem]

The present invention will be explained in detail below based on FIG. 1 of the drawings. Reference numeral 18 is an ignition cap, 19 is a fitting, one end 20 of which is connected to the ignition cap 18, and is molded to have a deep igniter insertion part 21. A igniter 22 and a safety ring 23 are each tightly inserted into this insertion portion 21. 24 is a safety striking pin slidably inserted into the safety ring 23; 25 is a caulked portion in which the insertion opening of the insertion portion 21 is caulked to prevent the safety striking pin 24 from slipping out; and 26 is a narrowed area by the caulked portion 25. A striking pin provided to strike the safety striking pin 24 through the insertion opening is similar to a conventional striking mechanism.

[Effect]

By activating the striking pin 26, the safety striking pin 24
When the safety striking pin 24 hits the safety ring 23,
The igniter 22 is struck by sliding on the inside of the igniter 22. Then, gas and sparks are generated and are instantaneously ejected into the ignition cap 18 through the conduit 27 of the fitting 19, igniting the candle core via the ignition agent.

〔Example〕

The tip of the safety striking pin 24 is attached to the safety ring 23.
In some cases, the safety striking pin 24 is screwed into the safety ring 23 and protrudes inside the safety ring 23 so that the rear end portion of the safety striking pin 24 can freely slide into the safety ring 23. If you do this, it will not come off even if you turn it in the opposite direction. Since the igniter 22 is struck via the safety striking pin 24, the force with which the igniter 22 is struck may be weakened compared to the case where the igniter 22 is struck directly with a normal striking pin. In order to prevent this, the safety striking pin 24 is made of a material having the same hardness as a normal striking pin. The striking pin 26 has a tip area larger than that of a conventional product to reduce deformation of the head of the pin 24 when the safety striking pin 24 is struck. In the present invention, a conventional striking pin may be used instead of the striking pin 26, and in that case, a concave portion with a radius slightly larger than the tip radius of the conventional striking pin is provided in the center of the head of the pin 24. , to reduce the deformation of the head of the pin 24 when the pin 24 is hit.

[Effect of idea]

Since the present invention is configured as described above, the igniter is held deep inside the fitting by the safety ring, and the igniter is struck through the safety striking pin, so that the igniter does not cause gas or sparks. This prevents the igniter from flying out of the fitting due to the reaction when it is ejected, and also makes it difficult to see the igniter from the outside, making it difficult to directly poke the igniter with a nail, etc. This will prevent gas and sparks from escaping.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a sectional view of a chlorate candle, and FIG. 3 is a sectional view of a conventional igniter for a chlorate candle. 18... Ignition cap, 19... Fitting, 22... Ignition tool, 23... Safety ring, 24... Safety striking pin, 25... Caulking part,
26...Blow pin.

Claims (1)

[Scope of utility model registration request] Insert the igniter and safety ring into the fitting that connects to the ignition cap of the chlorate candle, insert the safety striking pin that is struck by the striking pin into the safety ring so that it can slide freely, and insert the above fitting. A safety device for igniters for chlorate candles with a caulked mouth.