| 摘要 |
PROBLEM TO BE SOLVED: To move set fireworks up and down while moving the set fireworks right and left in the demonstration site of the set fireworks and to produce three dimensional fireworks by synchronizing the both movements. SOLUTION: A reciprocating running rope of an endless line which is provided with fireworks is constructed between a main pole and an opposite pole. A middle pole such as a crane is set on the intermediate position between the main pole and the opposite pole. The fireworks are moved up and down by moving the reciprocating running rope up and down by using a rope through a pulley from the head part of the middle pole. A three dimensional dynamic production effect can be produced in the fireworks by synchronizing the up-and- down movements and the right-and-left movements of the fireworks fitted to the reciprocating running rope. COPYRIGHT: (C)2004,JPO
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