Tilt chair control mechanism

Details Tilt chair control mechanism Tilt chair control mechanism

A - Human Necessities

47

C

155/22.2

A47C 3/026 (2006.01)

Patent

CA 1096765

ABSTRACT OF THE INVENTION A control mechanism for a tilt seat chair includes a control body ?u?ported in a relatively stationary position by a fixedly attached vertical post member. A torsion unit comprising a pair of resiliently urged concentric sleeves extends through opposed sidewalls of the control body forwardly of the post member and includes a forwardly extending tension lever having adjusting means constantly bearing against a case hardened transverse plate carried by the control body. A chair seat spider assembly pivotedly supported solely by the innermost sleeve of the torsion unit normally abuts, in its at rest position, non-metallic forward stop means carried by the control body and is limited in rearward tilting displacement by abutment of the same spider assembly with rear stop ramps comprising integral portions of the control body disposed rearwardly of the vertical post member.

319782

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