| 摘要 |
PURPOSE: A case for a fire cracker for a party is provided which does not require the production of a separate cover by integrally forming a cover and the case, makes it easier to insert the cover into the case by simply pressing and prevents the circumference of the cover from crumpled. CONSTITUTION: A fire cracker comprises a projection(12) having a cross section of a triangle shape at an upper end formed along an inner circumferential face, a stepped ridge(16) spaced from the projection(12) and formed below the projection(12), a case(10) with a gap(14) formed between the projection(12) and the stepped ridge(16) and an ignition string(2) connected to an explosive in the case(10). A cover(20) with a cross section of an edge(14) inclined in an inverse triangle is integrally formed to the case(10) along with a connecting portion(22) at one upper end of the case(10).
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