Patent ID: 7337583

Claim:
An extendable deck assembly for a seating area having multiple tiers, said extendable deck assembly comprising: a base portion, said base portion having a lower surface, opposite walls and a cover plate, said cover plate extending across and between said opposite walls and defining an upper surface of said base portion, said base portion defining a cavity between said opposite walls and between said cover plate and said lower surface; a deck portion, said deck portion being extendable and retractable between a retracted position, where said deck portion is positioned substantially within said cavity of said base portion, and an extended position, where said deck portion is at least partially extended from said base portion; and a support assembly arranged in said cavity of said base portion, said support assembly comprising a fixed end attached to said base portion, a movable end attached to said deck portion and at least one movable support, said at least one movable support being movably engagable with said lower surface of said base portion and with said cover plate of said base portion, said at least one movable support being movable relative to said fixed end and being extendable and retractable when said deck portion is extended and retracted, said at least one movable support being configured to substantially support said cover plate when said deck portion is in said extended position, wherein said at least one movable support comprises a plurality of roller assemblies, each of said roller assemblies having at least one lower roller that rollingly engages said lower surface of said base portion and at least one upper roller that rollingly engages said cover plate.