Control Mechanism Features
Synchro: Forward tilt/lock. One-lever controls seat tilt and back angle.
Tri-Action: Forward tilt/lock. Separate levers control seat tilt and back angle.
Multi-Function: Forward tilt/lock. Forward and rear articulation at the center of the control, with infinite lock and torsion spring tension control. Separate levers control seat tilt and back angle.
Knee-Tilt: Forward tilt/lock. Forward and rear articulation at the front of the control, with infinite lock and torsion spring tension control. Separate levers control seat tilt and back angle. All Control Mechanisms swivel 360°. Standard Features Durable bumper edge Upholstery Fully Upholstered Out-Back 25" Black 5 Star Resin Base Dual Hooded Black Casters Complies with: ANSI / HFS 100-1988 ANSI / BIFMA X5.1-1993 ANSI / BIFMA X5.7-1991 |
Style: Durable Bumper Edge upholstery style on seat and back. Fully upholstered out-back. Controls: All controls are conveniently placed and within easy reach of the seated occupant. Levers and large knobs operable by persons with disabilities shall be utilized where applicable. Seat angle, seat height, back angle, and back height are infinitely variable over the range of adjustment. All connecting points are metal-to-metal for durability. Height Adjustment: Separate single lever actuated pneumatic system with lift range of 17" to 21.5". Optional ranges from 16" to 34". Cylinder size is a 50 mm diameter for adequate strength. Base and Casters: Base is a resin 25" five-prong spider with adequate diameter to minimize the risk of upset. All five casters will remain on the floor when intended chair occupant sits down and/or leans back in the chair. All parts of the base are of adequate strength to support the occupant without undue flex or breakage. Standard Casters are 55 mm hooded twin wheel, hard plastic, which roll and swivel easily for use on carpet. Softer tread, twin wheel casters for hard flooring and glides are also available . Seat Pan Structure: ¾- inch thick, cross-grain hardwood, laminated compound curve plywood Seat Structure, attached to mechanism with bolts into long barrel T-Nuts. Minimum 2.5 PCF density polyurethane cushion uses a proprietary four-stage process of resilient and dual density foam to create a flat seat across the width. Front edge of pan or platform bends downward with one or less inches of unsupported foam to give a definite "waterfall" front edge. Size: Depth 19", Width 18.5", 3" thick high resilient polymeric and dual density urethane foam. Optional seat slider mechanisms allow for appropriate seat pan depth. Seat Pan Angle: Separate single lever actuated to 8° anteriorly or forward and at least 2° posteriorly or rearward sloping. Multi-Function and Knee-Tilt Controls rock back at least 10°. Seat can be locked at any desired angle within the adjustment range. Backrest Structure: 1/2 inch thick, cross-grain hardwood, laminated compound curve plywood attached to steel back bar with bolts into long barrelT-Nuts. Minimum 2.5 PCF density polyurethane foam. Vertically convex lumbar support with no horizontally concave surfaces (flat across the width) to maintain the back's natural S-curve. Size: Width 16.5", Height 15", 2" thickness of high resilient polymeric urethane foam. Backrest angle and height adjustment: Separate single lever actuates to at least 90° forward and 105° rearward angle. Knob adjusts 3" of backrest height for proper lumbar support. Optional lumbar adjustment ranges available. Optional Armrests: Durable black urethane padded armrests have a soft textured surface. Steel structural support attaches to chair seat pan. Adaptations for horizontal adjustment also available. Tear Drop "T" Arms, Non-Adjustable.
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