Pillar intended to form part of a furniture support equipped with a gas spring

Claim 1

A pillar intended to form part of a piece of furniture when interposed between a foot and a top part of said piece of furniture, said pillar comprising: a support tube which can be fastened to the foot; a sliding tube having a top conical end portion which can be engaged by a force fit in a correspondingly shaped cavity in the top part; and a gas spring, said gas spring including a body, a piston rod, and a control finger, said body disposed in the sliding tube, with lateral clearance therebetween, said rod being fixed, at its end remote from the piston, to the bottom of the support tube, said control finger being located at an end of said body remote from said rod, wherein said pillar is further equipped with a top stop means, situated in the top end portion of the sliding tube, to limit upward movement of the gas spring body, said top stop means including a vertical through passage in which a pushrod is movable to actuate said control finger and a rigid sleeve which is force fitted within the entire conical end portion of the sliding tube, in order to reinforce said tube, and wherein said sliding tube includes a bottom stop means situated at the bottom of the sliding tube and adapted to limit downward displacement of the gas spring body, said bottom stop means having a vertical through passage in which the piston rod of the gas spring can move.