| 主权项 |
1. A safety apparatus, comprising:
a platform; a U-shaped support frame comprising three rails, said support frame being open at one end with respect to an internal sidewall of a vertical enclosure, said support frame disposed on an underside of the platform; a hatch attached to a portion of the platform, said hatch having a hinged edge portion, said hinged edge portion cooperatively engageable with said platform, and said hatch having an inwardly curved, U-shaped opening formed by said hatch opposite said hinged edge portion, such that an apex of said U-shaped opening is disposed toward a body of said hatch and further disposed in an approximate geometric center of said platform, and such that lateral ends of said U-shaped opening disposed within said hatch extend distally away from said hinged edge portion of said hatch, wherein said hatch is adapted rotate away from said platform in order to allow a person to pass through said platform and said support frame; and a plurality of telescopic support legs attached to the support frame configured to telescope co-planar to the support frame; wherein said support frame further comprises first and second triangular portions bounding opposite sides of said support frame, each said triangular portion taking the form of an isosceles triangle, a respective base of each said isosceles triangle comprising one of said sides of said support frame, each said triangular portion further comprising a structural member interconnecting said base and an apex of said isosceles triangle between legs thereof, each said base disposed to carry a respective angled bracket adjacent each respective end of said base, said structural member interconnecting said base and said apex disposed to carry a respective bracket adjacent an end thereof, a face of each said respective bracket lying approximately perpendicular to said structural member and parallel to said base. |
