Patent ID: 8407943
Filing Date: 2013-04-02
Classification: B66F,E04H

Abstract:
1. A bleacher seating system comprising: a plurality of deck portions, each of said deck portions configured to support one or more seats, said deck portions being movable relative to one another between a nested configuration in which said deck portions are arranged generally on top of one another, and an extended position in which a lower deck portion is extended outward from an upper deck portion so that the deck portions are arranged in a stepped manner; a lift mechanism for adjustably supporting a respective one of said deck portions at a support surface, wherein said lift mechanism is configured to selectively raise and lower said respective deck portion between a lowered position, a first raised position and a second raised position relative to the support surface; first and second stop members coupled to said lift mechanism; a lock mechanism for limiting lowering of a respective one of said deck portions when said respective deck portion is at one of said first and second raised positions, said lock mechanism comprising: wherein said lock mechanism is actuatable to mechanically limit or substantially preclude lowering of said deck portion responsive to said deck portion being moved to one of said first and second raised positions.