Patent ID: 7806481

Claim:
A seating unit, comprising: a base with a laterally-extending tubular support; an armrest having a tubular end telescopingly engaging the tubular support; the tubular end having a first sidewall adjacent a similarly-shaped sidewall of the tubular support; and a clamp mechanism extending through the first sidewall and through the similarly-shaped sidewall configured to clamp the first sidewall and the similarly-shaped sidewall without crushing other walls of the tubular support and tubular end, such that remaining walls of the tubular support and the tubular end are not stressed in a way that will deform them even when the clamp mechanism is clampingly pressing the adjacent sidewalls together wherein the tubular support includes a top wall opposite the similarly-shaped sidewall, the top wall having an aperture, and wherein the clamp mechanism includes a headed fastener shaped to fit completely through the aperture during assembly.