Static structures (e.g. – buildings) – With stadium or auditorium feature – Seating arrangement
Patent
1991-04-18
1993-07-20
Safavi, Michael
Static structures (e.g., buildings)
With stadium or auditorium feature
Seating arrangement
E04H 312
Patent
active
052282465
ABSTRACT:
An apparatus for turning up and down seats for a telescopic seating system includes as essential components a foot on which a single seat is fixedly mounted, a base frame having a support shaft inserted therethrough in the transverse direction so as to allow the foot to be turned up and down about the support shaft, a center shaft extending through the base frame in parallel with the support shaft and including an extension outside of the housing, a guide arm turnably mounted on the extension of the center shaft, a pair of first coil springs mounted on the support shaft within the interior of the base frame so as to allow the foot to be normally biased in the turning-up direction, a second coil spring mounted on the extension of the center shaft so as to allow the guide arm to be normally turnably biased in the forward direction, and a pair of tongue-shaped projections fixedly mounted on the center shaft within the interior of the base frame, a link plate bridged between a front shaft on the foot and a rear shaft on the tongue-shaped projections. When the telescopic seating system is in use, turning movement of the guide arm induced by forward movement of a movable platform at the lower stage is transmitted to the foot via the center shaft, the tongue-shaped projections and the link plate, whereby the foot is turned up to assume the upright standing attitude.
REFERENCES:
patent: 4063392 (1977-12-01), Van Ryn et al.
patent: 4155202 (1979-03-01), Hartman
patent: 4446659 (1984-05-01), Quigley
patent: 4557080 (1985-12-01), Walworth et al.
patent: 4569162 (1986-02-01), Suzuki
patent: 4702043 (1987-10-01), Suzuki
Kimura Toshihiko
Suzuki Fumihiko
Kabushiki Kaisha Kotobuki
Safavi Michael
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