To execute the changeover works of first and second each working condition efficiently.
In the entertainment facility, in which an entertainment space M1 is freely used properly and formed under a first working condition and a second working condition, a floor forming device 6, in which panel members 2 for forming a floor under the second working condition are installed freely onto the floor under the first working condition, is mounted, a device body 6A formed of frames for constituting the floor forming device 6 is set up, and a driving device 9 freely making the device body 6A travel and driving the device body 6A extending over a floor forming range under the second working condition and a lifting device 10 freely lifting and lowering and driving the panel members 2 are fitted to the device body 6A.
CHUMA TATSUICHI
FURUKAWA HIROSHI
MATSUKAWA TOSHIMASA
MUKAI HISAO
MASUDA YUKIO
HONMA TAKASHI
IWATA SHOGO
NAGATA YOSHIO
NAKAHARA KOJI
YANAGISAWA NOBUYUKI
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