Hydraulic device to deploy a bleacher system
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United States of America
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Sep 10, 2024
Grant Date -
N/A
app pub date -
Aug 30, 2022
filing date -
Aug 30, 2022
priority date (Note) -
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Abstract
A control system guides and supports the deployment of a folded, collapsed bleacher system. The control system includes a hydraulic device implemented as a piston-cylinder combination anchored at one end to the trailer frame carrying the stowed bleacher and anchored at another end to an undercarriage support member of the bleacher. The movement of the piston exerts a tandem pivoting action on the front and rear bleacher sections, which deploys and opens the bleacher system to a level, seating-ready configuration. A weight detection module senses the approach of a free-fall condition of the bleacher system during deployment and increases the applied resistance of the piston-cylinder combination, controlling the rate of descent of the bleacher system to avoid free-fall.
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