| 摘要 |
PROBLEM TO BE SOLVED: To provide a cracker capable of allowing an ejection to be blasted off straight to a front part of a cylindrical body while preventing scattering of a pressure receiving plate and the circumference of the ejection to the surrounding, and allowing the ejection to be normally blasted off while preventing variation of attitude of the pressure receiving body by vibration or the like in transportation. SOLUTION: In this cracker constituted by connecting the pressure receiving plate 41 and the ejection into the cylindrical body 10 to be blasted off to the circumference in gunpowder explosion, the pressure receiving plate 41 has a pair of right and left leg portions 42 extending to a rear portion, and connected in the cylindrical body 10 through the pair of leg portions 42, and the pair of leg portions 42 are fitted in the cylindrical body 10 in a state of being contracted and kept into contact with an inner peripheral face of the cylindrical body 10. COPYRIGHT: (C)2007,JPO&INPIT
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