Portable riser

Details Portable riser Portable riser

1996-06-07

1998-08-04

Kent, Christopher

Static structures (e.g., buildings)

With stadium or auditorium feature

52 9, 52183, E04H 328

Patent

active

057876479

ABSTRACT:
The choral riser is to be supported on a stage surface. The choral riser has a base that presents two spaced apart base supports, each of the base support having a first and a second spaced apart pivot point. A first step member has a step pivot point and a base pivot point that is operably pivotally coupled at the base pivot point to the base at the base first pivot point and has at least one step presented thereon. A second step member has a step pivot point and a link pivot point that is operably pivotally coupled at the step pivot point to the first step member at the first step member step pivot point and has a plurality of steps presented thereon. A bar link member is operably pivotally coupled at a first end pivot point to the second step member bar link pivot point. The bar link member is operably pivotally coupled at a second end pivot point to the base second pivot point. The first and second step members are pivotable between a stowed configuration, with at least one of the steps of the first step member facing at least one of the steps of the second step member, and an operational configuration in which the steps of the first and second step members present an ascending succession of steps. The steps are readily reversible to change the stage presentation form.

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