KI
1330 Bellevue Street
Green Bay, WI 54302
Tel: (920) 468-8100
Fax: (920) 468-0280
E-mail: consultki@ki.com
Web site: www.ki.com

SINGLE PEDESTAL SEATING

Product Description:
Individually mounted fixed pedestal seating with tablet writing surface provides flexibility in classroom layouts.

Product Benefits:

Five chair options offer a wide variety in comfort and price levels
Four tablet arm options give users a choice in function, style, and price
Powder-coated beams and bases provide maximum durability

Specifications:

Scope
Seating shall be Single Pedestal Seating as manufactured by KI, Green Bay, WI.

Single Pedestal Seating shall be floor mounted on individual bases with or without tablet arms. Bases shall be floor or riser mounted. Floor mounted bases can accommodate sloped floors.

Materials

A. Bases
Individual pedestal bases shall be fabricated steel column, 11-gauge 1-1/2" x 2" seamless tubular steel for floor mounting or riser mounting installations. Vertical rectangular column shall be welded to a 6" x 8" die-formed 11-gauge flange which bolts to the floor or vertical face of the riser with four anchor bolts (not furnished). Seat shells shall be mounted to an 11-gauge stamped steel spider welded to the top of the column. Tablet arm supports shall be welded to the spider. Plastic flange covers shall be furnished on floor mounted bases only (not available on riser mount bases).

B. Tablet Arms
1. "G" Style Tablet Arm
Support shall be two 1-1/8" x 16-gauge steel tubes. The lower end of the tubes shall be welded to the steel seat spider. The 1" x 2" x 14-gauge support bracket is welded between the two vertical tubes and under the 14-gauge steel top plate. Two injection molded pivot cams mount to the support bracket and encompass a 5/8" diameter shaft containing a 3/16" x 7/8" hardened key stop. This assembly provides the total travel motion of the tablet, 0 degrees (use position) and 175 degrees (stored position). Welded to the shaft is a 7-gauge pivot plate having two steel hinge barrels, one which is keyed to restrict the tablet travel from 0 degrees stored to 90 degrees use position. This pivot bracket is assembled with a pin and spring to a hinged 7-gauge steel support plate measuring 2-1/4" x 9" x 7-gauge which in turn fastens to the tablet board with six #12 x 3/4" wood screws. The writing surface "G" style, shall be 9-1/8" x 18-1/8" x 13-3/4", constructed of 15mm Baltic birch plywood core, top faced with .050" HPL and backed with a .040" HPL backer sheet. Edges shall be clear lacquer sealed. Right- and left-hand models with all standard laminate colors are available.

2. "K" Style Tablet Arm
Support shall be die cast aluminum alloy in finishes to match the frame. Rotating hinge shall be die cast aluminum with steel pins and springs. Folding mechanism shall have a minimum number of moving parts to prevent wear. Armrest shall be an integral part of the arm support. The cast aluminum support shall have jaws at 90 degrees to the vertical support that match a steel adapter and are secured with four hex head bolts. The steel adapter shall be welded to a 1-1/2" x 3/4" nominal 14-gauge support tube which in turn is welded to the spider on the frame. Tablet arm shall roll up from the front and rotate forward into storage position at side of cast aluminum support.

Writing surface, "K" style, shall be 10" x 12" x 13-1/8", plywood core 5/8" thick, 11 plys of Northern hardwood surfaced with .030" high-pressure laminate pattern and matching plain under-surface. Underside shall be routed to accept 3" x 3" hinge plate fastened to the wood with four sheet metal screws. Edges shall be lacquered and sealed. Right- or left-hand models shall be available. All standard laminate colors are available.

Optional oversize "K" writing surface - 9" x 12" x 16-1/8". Same construction as above.

3. "S" Style Stationary Tablet Arm
Available with all shells except Versa Conference, Piretti Stack and Piretti 2000 Task. Vertical tubular support of 1-1/8", 14-gauge steel is welded at the bottom to the seat spider under the shell. At the top, a steel plate is welded to the vertical support and secured with screws to the underside of the wood.

Writing Surface � 9-1/2" x 20-3/4" x 12-1/2". High-density particleboard core, 5/8" thick with plastic melamine surface. Right- or left-hand models available. Limited laminate colors available. Edge is painted to match laminate.

Optional oversize "S" writing surface � 10-1/2" x 20-1/2" x 17" plywood core 5/8" thick with .030" high-pressure laminate and plain under-surface. Right or left hand models available. Edges shall be lacquered and sealed.

4. "F" Style Flip-up Tablet Arm
Available with all shells except Versa Conference, Piretti Stack and Piretti 2000 Task. Vertical tubing, 1-1/8" x 14-gauge, is welded to seat adapter or spider at the bottom. Formed steel hinge at the top of the vertical tubing allows the tablet arm wood to flip up for easy entrance or exit from the seat. Hinge is secured to wood with screws.

Optional oversize "F" writing surface � 10-1/2" x 20-1/2" x 17" plywood core 5/8" thick with .030" high-pressure laminate and plain under-surface. Right- or left-hand models available. Edges shall be lacquered and sealed.

5. Optional Plywood Core
5/8" thick, 11 plys of Northern hardwood surfaced with .030" high-pressure laminate pattern and plain undersurface, is available at a slight up-charge. All standard laminate colors are available on plywood core tablet arms.

C. Shells
1. 1000 Series Polypropylene
One-piece molded seats and backrest design on high-impact polypropylene. Rolled edges and ribs under seat for extra strength. Nominal flex plus textured surfaces provide good posture support and discourage slouch seating. Four molded-in sills on underside of shell attach to spider with hi-lo screws. Upholstery available (See options below).

2. Dorsal Shell
Two-piece injection-molded thermoplastic seat and backrest with textured seat and backrest surface, on front only. Seat and backrests are joined by a maintenance-free steel hinge with integral spring mechanism which allows the upper back to articulate back with pressure. The hinge to be covered with high-strength plastic bellows. Four molded-in sills on underside of seat attach to spider with hi-lo screws. Upholstery available (See options below).

3. Piretti Torsion
Seats and backrests are molded compound curved polypropylene with a textured finish. Seat is two piece construction. Two die cast aluminum backrest supports attach the backrest to the Torsion mechanism. A steel tube is cast into each backrest support for added strength. The back flex is achieved by the Torsion mechanism. It consists of two flat torsion springs captured at both ends by brass bushings which in turn engage with the backrest supports. The Torsion mechanism creates gradually increasing resistance over the full 12 degrees of back flex. Upholstered chairs have partially exposed polypropylene surfaces. Fabric is upholstered over 9/16" foam on the backrest and 1-1/2" foam on the seat.

4. Piretti Stack
Seats and backrests shall be molded compound curved polypropylene with a textured finish. Backrest edges shall have an integral channel into which upholstery is secured. Upholstered chairs shall have partially exposed polypropylene surfaces. Upholstery covers 1/2" foam on the backrest and 3/4" foam on the seat. Molded plastic seat liner covers the seat underside. The back shall tilt 15 degrees. Two hidden lever mechanisms which respond to the user�s weight shall be located in the seat. Each has a double cam action. The rear cam shall be tied to the back structure and shall be set in motion when the occupant leans back. This, in turn, through a spring linkage, shall activate the front cam at a slightly different ratio (1½ to 1). The mechanism shall consist of stamped steel frame and levers, a steel spring and molded Delrin and nylon components. It shall be calibrated at the factory and shall need no further adjustment.

5. Piretti 2000 Task
Seat and back innerstructure shall be constructed of 1/2" thick 7-ply plywood. Molded foam shall be glued to the plywood and covered with upholstery fabric. A molded plastic seat liner shall cover the seat underside, and a molded plastic back shroud shall cover the back of the chair. A fully upholstered back is also available. An adjustable height back shall be available as standard allowing 2-1/4" of vertical travel in five incremental steps, which shall lock and unlock automatically without levers. An optional adjustable back angle inclination shall also be available in a range from 87 degrees to 100 degrees. The user shall be able to infinitely vary the angle of the inclination of the back by raising a lever. Two hidden lever mechanisms which respond to the user�s weight shall be located in the seat. Each has a double cam action. The rear cam shall be tied to the back structure and shall be set in motion when the occupant leans back. This, in turn, through a spring linkage, shall activate the front cam at a slightly different ratio (1½ to 1). The mechanism shall consist of stamped steel frame and levers, a steel spring and molded Delrin and nylon components. It shall be calibrated at the factory and need no further adjustment.

6. Optional Upholstery Pads
1000 and Dorsal series shells. Fixed seat cushion (FS) or fixed seat and back cushions (FSB) are mechanically fastened to front of shell. Foam padded with upholstery cover.

D. Colors
Frame finishes � Powder-coat finish is standard on all frames in a choice of black, sand, warm grey, and blue grey. Plastic components match the four standard powder-coat colors. Standard KI fabrics available; C.O.M. (customer�s own material) fabrics require factory approval.

E. Options
Bookracks - Chrome wire bookracks are available.

Note: Floor mounting anchors are not provided.

INSTALLATION SECTION

FLOOR MOUNTING REQUIREMENTS

Minimum Construction Required for Upright Installation

Wood Floors
� Minimum two layers of 3/4" thickness tongue & groove
� APA rated grade plywood
� Allow minimum embedment 1-1/2" with lag screws
� Use toggle bolt if less than 1-1/2" embedment

Concrete Floors
� 3000 psi Concrete compressive strength
� 3" thick free of obstructions for 1-1/2"
� 4" thick for riser mount free of obstructions for 2-1/2"
� Riser to be plumb within 1/8 degree
� Minimum anchor embedment 1-1/2"

Note: Warranty null and void if KI product is installed on flooring not meeting minimum structural requirements stated above.

Floor Fastener Requirements

Wood Floors
� 5/16" x 1-3/4" lag bolts; grade 5
� 5/16" flat washers
� 3/8" toggle bolts
� All hardware to be plated
� Four bolt assemblies required per base

Concrete Floors
� 5/16"-18 or 3/8"-16 grade 5 expansion anchors
� Standard flat washers, plated
� LockTite (red) thread lock or equal
� Four screw assemblies required per base

Note: Floor mounting fasteners are not provided.