JPS6479599A - Method of igniting launching powder for firework - Google Patents

Abstract

PURPOSE: To reduce labor and improve safety in a powder cartridge-equipped launching shot filled with launching gunpowder by providing a shock a percussion on a powder cartridge bottom with a needle of a solenoid shock apparatus disposed independently from the powder cartridge, and firing launching powder. CONSTITUTION: A percussion 70-equipped powder cartridge 10 containing a launching shot 13 is taken out from a container case together with a fixing table 20, and a shooting-up cylinder 30 is lifted by operating a lever 44 to place the powder cartridge 10 on a frame table 41, and then the shooting-up cylinder 30 is lowered to be fixed with a fixing metal fitment 45. Once a switch 59 of a power supply 58 is on, an iron piece containing coil 52 lowers an iron piece 53 and pull up a needle 57. Once the needle 57 provides the percussion 70 a shock, the percussion 70 is fired to fire launching gunpowder 12 and hence shoot the shooting-up ball 13. There is eliminated the possibility of firing happening owing to sparks of fire, and there is ensured safe, secure, and simple firing by insulating the launching gunpowder 12 and the launching shot 13 from the outside through the powder cylinder 10 as described above, and adopting a firing technique where heat and electricity are not used.