| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem that there has not been an assembling spherical toy using a planer piece conventionally since it is very difficult to assemble the multiple planar pieces into a spherical shape (32-faceted body). SOLUTION: In the assembling spherical toy using 20 pieces of planar regular hexagonal pieces 1 and assembling the spherical body of the 34-faceted body which is provided with 20 regular hexagonal surfaces and 12 regular pentagonal holes 2, recessed grooves 15 are respectively formed at positions which are in parallel with three alternate sides 14 and at equal intervals from the respective sides 14 on the outer surface 11 of each regular hexagonal piece 1, and respective rubber rings 4 are fitted into a series of respective circular recessed grooves 15A which are arranged to enclose the respective regular pentagonal holes 2 in respective circular piece groups 1A which enclose each regular pentagonal hole 2 and make one group with five pieces, and the whole regular hexagonal pieces 1 are elastically bound to be the spherical body.
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