Height-adjustable chair arm assembly

Details Height-adjustable chair arm assembly Height-adjustable chair arm assembly

A - Human Necessities

47

C

A47C 7/54 (2006.01) A47C 1/03 (2006.01)

Patent

CA 2223628

An arm assembly (21) on a chair (11) includes an armrest (22) which adjacent one end is connected to an upper end of a support column (23). The support column is axially slidably supported within an elongate support tube (61) which projects downwardly adjacent a side of the chair seat (14). The support column and support tube have a cooperating linear anti-friction bearing arrangement (71) therebetween, the latter incorporating a resilient support track (77) to eliminate circumferential clearance. A latch member (82) is carried on the column and cooperates with a plurality of latch-receiving slots (85) formed in the support tube. The latch member is activated by a push rod (91) which projects upwardly through the support column, and at its upper end is activated by a lever (93) which terminates in a button (96) adjacent the front of the armrest.

Un ensemble bras (21) de fauteuil (11) comprend un accoudoir (22) dont une extrémité adjacente est raccordée à une extrémité supérieure d'une colonne support (23). La colonne support est supportée axialement coulissante dans un tube support allongé (61) qui fait saillie vers le bas, jouxtant un côté du siège (14) du fauteuil. Un palier à roulement (71), linéaire, coopérant, est agencé entre la colonne support et le tube support, ce palier comprenant une voie de roulement support résiliente (77) qui permet d'éliminer le jeu du pourtour. Un élément de verrouillage (82) est supporté sur la colonne et coopère avec une pluralité de fentes (85), réceptionnant les éléments de verrouillage, formées dans le tube support. Le dispositif de verrouillage est activé par une tige poussoir (91), passant par la colonne support et faisant saillie vers le haut, et à son extrémité supérieure, est activé par un levier (93) qui se termine par un bouton (96) adjacent à l'avant de l'accoudoir.

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