Lumbar support for a chair

A flexible back chair having a lumbar support assembly comprising:

• said flexible chair back having a front and a rear;
• at least one generally vertical support member disposed to the rear of the chair back;
• means slidable in a generally vertical direction on said at least one generally vertical support and having opposed ends;
• gripping means on each of said opposed ends for slidably gripping opposed edges of said flexible back;
• wherein said means slidable on said at least one generally vertical support is dimensioned and configured to force opposed edges of said flexible back forwardly of said chair back in the lumbar region of the chair user and is maintained in a preselected vertical position relative to said support by tension of said chair back.

A chair having a lumbar support comprising:

• a base;
• a seat connected to said base;
• a back operatively connected to said base, said back being flexible and having upper, lower and lateral edges;
• and
• a transverse member having opposed ends with gripping elements for operative engagement with opposing lateral edges of said back wherein said transverse member flexes said back to adjust the tension thereof.

A chair with a lumbar support member comprising:

• a base;
• a seat connected to said base;
• a rigid frame member connected to said base;
• a back having a fabric center portion mounted to a flexible peripheral carrier, said peripheral carrier having an upper, a lower and lateral side portions, said lower portion of said back being secured to said rigid frame member;
• and
• a lumbar support member having spaced apart connector elements slidably engaging the lateral side portions of said peripheral carrier whereby flexing of said peripheral carrier alters the tension of said fabric center portion.