Importance

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Abstract

Movable stands include a plurality of floor stands, and a plurality of leg parts. The leg parts include a first stopper that allows the floor stand and the floor stand one step below to move forward in conjunction with each other to a state of being deviated in a stepped form, and a second stopper that allows the floor stands of the set to move forward in conjunction while being aligned in an up and down direction. The movable stands include a mode switching unit that switches the second stopper between a protruded state and a retracted state, and a switching drive unit. In the storage position, a plurality of sets of mode switching units are integrally driven in conjunction with driving of the switching drive unit to switch the plurality of sets of second stoppers between the protruded state and the retracted state.

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First Claim