Static structures (e.g. – buildings) – With stadium or auditorium feature – Seating arrangement
Patent
1990-02-13
1990-12-25
Murtagh, John E.
Static structures (e.g., buildings)
With stadium or auditorium feature
Seating arrangement
182113, E04H 312
Patent
active
049793403
ABSTRACT:
A mobile folding choral riser includes a foldable frame having means for receiving a number of removable riser steps at progressively higher locations on the frame. Locking means are provided for releasably securing the steps to the framework. A guardrail is provided along the back of the riser, and the guardrail is pivotable to permit overlapping with the guardrails of other riser sections when a riser in forward configuration (widest step at the back) is placed adjacent a riser section in reverse configuration (narrowest step at the back). Interlocks are provided for securing adjacent riser sections together, regardless of whether individual sections are in forward or reverse configuration. The riser can be folded between transport and operational configurations with locking or holding mechanisms for each configuration.
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Botts Rollin D.
Wilson Keremit H.
Murtagh John E.
Sico Incorporated
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