h a l f b a k e r yWhat was the question again?
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Seating for spectators/audiences at sports, music and
other events. Arrives as a container/trailer on a lorry.
Has a small, self-contained power and control unit. Place
it in the right location, clear the area, and press the
“go”
button.
Electrohydraulically it unfolds, like an electrohydraulic
butterfly. Foot-pads spread to stably distribute load on
soft
grounds. A bank of seats slides out vertically and
horizontally to form an audience stand, with steps, aisles
and handrails already integrated.
Optional extras: canopy/sunshade, lighting & power
distribution, sound system, portaloos underneath.
Perhaps
powered wheels to manoeuvre/hitch to trailer.
Multiple units can be connected along/around to form
complete stadia.
When the event’s over, press the “close” button (making
sure no-one is still in the stand) and it folds, concertinas
and compresses itself back into it’s container unit.
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Annotation:
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//Self-erecting Spectator Seating// I'm not going to any
event where the spectators are self-erecting,
thankyouverymuch. |
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This already exists. We have observed several being set up at a motorsport event. They were built on standard articulated truck trailers; after the tractor units were uncoupled, a pipe or cable was run back to power the deployment. We suspect the mechanism was electrical but could have been hydraulic; probably not pneumatic as air motors are distinctively noisy. |
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Thanks both. Provisionally [mfd], but i’ll let it
remain for a moment (if you don’t mind) while I
find a source. |
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