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US 6,385,912 B1Granted
Construction substructure
AssigneeSchiess-Defries Engineering Immobilien-und Bautrager GmbH
InventorsGeorg Wessel, Matthias Paul
Life of this patent
Estimating the term…
Abstract
A substructure for a sports field of the type which can be shifted on glide pads or rollers on a track of a foundation and in which the frame supporting the sports field can be lifted by pairs of hydraulic cylinders to facilitate inspection and maintenance of the structure beneath the frame. A track bridging the inspection and maintenance space can have a wedge-shaped section covering an opening for this space and hydraulically displaceable into and out of position.
Claims5
A movable sports field structure comprising:
- a trough-shaped support frame receiving a sports field and having a plurality of support pedestals;
- a foundation formed with horizontal tracks on which said supports pedestals ride;
- a bridge disposed below said support frame in a region of one of said pedestals and having a pair of hydraulic cylinders braced against said foundation at opposite ends of said bridge and actuatable to lift said support frame and provide an inspection and maintenance space below said support frame;
- and
- a bearing enabling horizontal shifting of said support frame and said bridge and interposed between a location on said bridge between said hydraulic cylinders and said support frame.
2 more elements
A movable sports field structure comprising:
- a trough-shaped support frame receiving a sports field and having a plurality of support pedestals;
- a foundation formed with horizontal tracks on which said supports pedestals ride, and with inspection and maintenance spaces;
- a track bridge on said foundation supporting said track and spanning one of said spaces;
- a pair of hydraulic cylinders on opposite ends of said bridge and actuatable to lift said support frame at said inspection and maintenance space;
- and
- respective bearings between each of said hydraulic cylinders and an underside of said support frame.
3 more elements
Dependencies are inferred from the claim text.