| 摘要 |
A seat module having full perimeter structural interlocking end portions for coupling adjacent modules together when they are assembled and which is particularly adapted for use in a tiered structure, e.g., folding bleachers, is disclosed. The seat module includes a contoured, upper seating surface for an occupant of the seat, an inwardly curved rear surface for increased foot room for an occupant of the next higher row, and a sloped front surface for full leg movement. The individual modules are molded from a single piece of high impact resistant, structural foam and include a single internal load transfer member extending from top to bottom in dividing the interior thereof into two separate chambers and increasing module stability and strength. The lower portion of the seat module is adapted to be mounted by means of a single hardware fitting in the lengthwise slot of an extruded nose beam which is firmly mounted to the seating platform structure. Seat module mounting hardware is internal to the module and thus concealed after installation. This improves appearance and reduces damage through vandalism. Each end of a row of assembled seat modules is provided with a structural foam enclosure for concealing seat module internal structure and hardware fittings in providing a finished appearance.
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