Chairs and seats – Bottom or back – Framework
Patent
1977-06-20
1978-05-09
Mitchell, James C.
Chairs and seats
Bottom or back
Framework
297183, 297232, 297243, 297DIG2, A47C 112
Patent
active
040883671
ABSTRACT:
A cantilevered seat for a transit vehicle having a seat shell and a back pan molded from polycarbonate structural foam plastic. The seat shell has contoured into its front surface two seat recess areas and two back recess areas. The seat shell is an integral member having a front panel with a laterally extending flange formed around its periphery. The rear surface of the seat shell has plurality of integrally molded horizontal, diagonal, and vertical structural rib members. Substantially in the center of the seat shell is a major vertical structural rib member and the matrix formed by said vertical, diagonal, and horizontal rib members is symmetrical about said major vertical rib member whereby the seat shell can be used either as a right hand mounted or a left hand mounted cantilevered seat. The back pan has integrally molded channels on its inwardly facing surface for receiving the vertical and horizontal rib members extending outwardly from the rear surface of the seat shell. The seat shell and back pan are bonded together as an integral member. The back pan has a knee recess formed in its outwardly facing surface. The seat shell also has a bottom seat bracket slot molded into its bottom surface adjacent each end of the seat shell. Top seat bracket slots are likewise molded into the seat shell along its back surface adjacent each end. These sets of seat bracket slots allow the seat to be mounted from either of its ends to a vertical wall. The seat shell additionally has a plurality of boss members integrally formed in predetermined structural rib members and these are symmetrically located in both of the upper corner areas of the back portion of the seat shell whereby passenger assist handles can be attached to the seat whether it is to be mounted from the left or the right side wall of the vehicle.
REFERENCES:
patent: 2797741 (1957-07-01), Hodges et al.
patent: 3041107 (1962-06-01), Schaefer
patent: 3619006 (1971-11-01), Babecki
patent: 3669496 (1972-06-01), Chisholm
patent: 3768863 (1973-10-01), Jennings
Atkinson Thomas C.
Fay Clifford C.
Gilliam Frank D.
Mitchell James C.
Rohr Industries, Inc.
Schlesinger Patrick J.
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