Office chair

Details Office chair Office chair

A - Human Necessities

47

C

155/51.2

A47C 1/02 (2006.01) A47C 1/032 (2006.01)

Patent

CA 1156923

ABSTRACT OF THE DISCLOSURE A reclining article of furniture for sitting, especially an office chair, with the article including a seat portion and a back portion articulated thereto. The seat portion and back portion are respectively connected to an underframe. The seat portion is supported in a forward zone and the back portion is supported by a supporting lever articulated to the underframe and articulated to the back portion at the hip level of a user, to obtain a support which is also effective in the zone of the lumbodorsal vertebrae and to provide a close contact of the supporting surfaces with the user's body. The contact is uniform in the rest position approximately from the back of the knees up to the shoulder blades. The seat and back merge through an arcute intermediate section which is flexible so that the arc can become wider. A connecting line extending between two points of articulation of the supporting lever in a basic position of the chair is inclined at an angle of between 0° and 25° and, preferrably, between 15° and 25°, with respect to the vertical. By virtue of these features, the seat surface is initially lengthened toward the rear before a stronger rearward inclination of the back occurs when the seat is moved from an upright sitting attitude to a reclined attitude.

376626

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