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Electromagnetic Kabuki Drop Systems
Electromagnetic Kabuki Drop systems do not use linear solenoids but use solenoids as an electromagnet lock.
Unlike permanent magnets that are magnetic in their natural state, electromagnets are ferrous metals that only become magnetized when an electrical current is passed through them.
This characteristic allows electromagnets to act as a locking system when they are energized. When the electrical current is cut, the electromagnets magnetic powers cease allowing for a release in the locking system.
This is similar to the system used in electromagnetic doors in buildings for security purposes.
The benefits of an electromagnetic lock Kabuki Drop system are that it an easier electronic system to build as compared to linear solenoid systems. It is also easier to set up than most other systems and it is relatively silent when activated.
The downside is that it uses a lot of electricity and the constant electric current required to keep the electromagnets on can shorten the lives of the power cables.
“Electromagnetic Lock” Kabuki Drop
As the name suggests, a basic electromagnetic lock Kabuki Drop system uses electromagnets as a lock mechanism.
Each drop point comprises of a holding magnet (or electromagnet) and an armature plate.
Holding Magnet
Armature Plate
The armature plate is a ferromagnetic plate with a fixing hole that allows it to be attached to the kabuki curtain. It is usually attached to the cloth via rubber grommets.
The holding magnet will possess magnetic properties when energized. When the current passes through the magnet, it will cause the armature plate to be attracted to the magnet. This creates a locking action that holds the kabuki curtain in place.
During set-up, the holding magnet is clamped onto the flying bar. The armature plate, that is securely fastened onto the curtain is then attached, one by one, onto the respective holding magnets by means of magnetic attraction.
Photo Credit: Event Staging and Presentation Support Ltd
When all the drop points are set up, the flying bar is raised up above the stage and the curtain is suspended open.
Upon the cutting off of the electric current supply, the holding magnet demagnetizes and releases its grip on the curtain, thus allowing the curtain to fall to the floor.
“Electromagnetic Catch Release” Kabuki Drop
This system uses an electromagnetic lock system in a different way.
Instead of directly using the holding magnet to attach the curtain to the drop point, the holding magnet holds up a hook with arm lever where the curtain hangs from.
The magnet releases the hook with arm lever when electricity is applied to the unit; a sprung plate ensures release even if a light load is applied.
Electro Kabuki: EK2
Photo Credit: Electro Kabuki
Powadrop
Photo Credit: Powa Productions
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