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A chair includes a base, a seat, a back pivoted to the base and an inner shell construction connecting a cushion assembly to the back. A chair control includes a control housing, a pair of coil springs and an adjustment subassembly. The coil springs include ends which engage the back and bias the ba

A chair includes a base, a seat, a back pivoted to the base and an inner shell construction connecting a cushion assembly to the back. A chair control includes a control housing, a pair of coil springs and an adjustment subassembly. The coil springs include ends which engage the back and bias the back to an upright position. The adjustment subassembly includes an adjuster plate pivoted to the control housing and engaging the other ends of the springs, an adjuster nut engaging the plate and an adjustment screw.

대표청구항 ▼

A tilt assembly for a chair, said assembly comprising: a control housing; a back support lever pivoted to said control housing; a torsion spring disposed within said control housing, said torsion spring having first and second ends, said first end engaging said back support lever; an adjuster plate

A tilt assembly for a chair, said assembly comprising: a control housing; a back support lever pivoted to said control housing; a torsion spring disposed within said control housing, said torsion spring having first and second ends, said first end engaging said back support lever; an adjuster plate having a forward end pivoted to said control housing, said adjuster plate further having a rearward end; an adjuster nut engaging the rearward end of said adjuster plate, said second end of said torsion spring engaging said adjuster plate; and an adjuster screw mounted on said control housing and engaging said adjuster nut.