Theatre Solution Teatro Auditorium Seating - Manual (Page 27)

26 Specifications Teatro Auditorium Seating
B. Seat Construction: The seat panel shall be 5/8” thick, electronically glued curved hardwood plywood.
The padding material shall be 3” thick polyurethane foam, shall be glued to the inner surface of the seat
panel, and shall conform to the California Bureau of Home Furnishings Technical Bulletin 117. The
outside surface of the seat panel shall be encapsulated in 1/2” thick slab polyurethane foam. The
complete seat assembly shall be supported by two 7 gauge formed steel mounting brackets which will
attach the seat assembly to the hinges on the standards. The seat shall have a built-in counterweight to
insure automatic self-rising without the aid of springs. Arch-spring seat construction will not be
acceptable.
C. Back Construction: The back panel shall be 3/8” thick, electronically glued curved hardwood plywood.
The padding material shall be 1-3/4” thick polyurethane foam, 2-3/4” thick in the lumbar region, shall be
glued to the inner panel, and shall conform to the California Bureau of Home Furnishings Technical
Bulletin 117. The outide surface of the back panel shall be encapsulated in 1/4” thick slab polyurethane
foam. The complete back assembly shall be supported by two 13 gauge formed steel brackets and two
3/8-16 hex head bolts which will attach the back assembly to the frame.
D. Armrests: Shall be kiln-dried solid hardwood, nominally 1” thick x 2-1/2” wide x 12” long, stained to
match the outer seat and back panels. The armrest will be fastened to the steel frame arm support with
one 10-24 x 7/8” flat head machine screw and one 10-24 x 2-1/4” flat head machine screw into threaded
inserts on the underside of the armrest. Chairs equipped with tablet arms shall have armrests nominally
1” thick x 2-1/2” wide x 18” long and shall be attached to the steel frame arm support with four #8 x 3/4”
sheet metal screws.
E. Hinge: The seat hinge shall be a weldment consisting of a 7 gauge hot-rolled pickled-in-oil steel
component and shall be formed and punched to receive a 0.56” id x 0.75” od x 0.5” long steel bushing.
A self-lubricating nylon sleeve shall be fitted between the seat hinge and the standard seat hinge pin.
The hinge shall be machined to provide a positive stop location for the seat in both occupied and
unoccupied positions. The hinge shall be fitted with a plastic cover to eliminate all pinch points and shall
include a 3/16” thick urethane rubber pad to dampen noise upon the seat return to the vertical position.