| 摘要 |
PROBLEM TO BE SOLVED: To provide a portable large soap bubble-generating device that can be carried easily. SOLUTION: A post holder 14 is fixed to the four corners of a stage substrate 12. A top board 20 is arranged at the upper portion of the stage substrate 12, and a flange 22 is fixed to the lower surface of the four corners of the top board 20. A guide post 26 is arranged between the stage substrate 12 and the top board 20, and a lower end part 26A of the guide post 26 is inserted into an insertion hole 14A of the post holder 14 and is fixed by a first pin 32. Also, an upper end part 26B of the guide post 26 is inserted into the insertion hole 22A of the flange 22 and is fixed by a second pin 33.
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