Counterweight Fly System Diagram
Double purchase meaning the weight of the counterweights on the arbor equals twice the weight of the scenery batten.
Counterweight fly system diagram. All users must be. When a near balanced condition occurs the effort required to fly a set in or out equals the amount of system friction plus the inertia to move the load. But rope systems are often included as an auxiliary system. Most elevators have an entirely separate speed regulating system called a governor which is a heavy flywheel with massive mechanical arms built inside it.
A counterweight system is meant to be operated in a near balanced condition. Normally the arms are held inside the flywheel by hefty springs but if the lift moves too fast they fly outward pushing a lever mechanism that trips one or more braking systems. Also the room or space be low that slot. Designed to allow the fly rail where you control the system to be on a raised level.
A fly system or theatrical rigging system is a system of rope lines blocks counterweights and related devices within a theater that enables a stage crew to fly hoist quickly quietly and safely components such as curtains lights scenery stage effects and sometimes people systems are typically designed to fly components between clear view of the audience and out of view into the. Refer to figure 4 5 for a diagram that shows the components of a counterweight fly system. Well equipped theatres often have a flyrail on both stage left and right. Any additional objects flown from the batten will require that additional weights be placed on the arbor.
Streamlined to allow more line sets in a theater since counterweights don t take up as much space as sand bags. Rope systems are often used for temporary or custom rigging as rope systems are easier to adapt than counterweight or winch systems. Designed system of permanently installed hoists and a control system is easy to use and is a lower risk approach than a counterweight system. Each empty pipe batten has weight and therefore counterweights must be added to the arbor for that batten.
Today the main fly system is rarely a rope system. Rigging wall that allows the counterweight arbors to travel lower than the stage floor to provide in creased batten travel. Auditorium noun the seating area or audience chamber of a performance space.