Locking device for an office chair structure with an articulation permitting the movement of the seat and the seat back and related structures of the chair
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United States of America Patent
Stats
-
Apr 3, 2007
Grant Date -
Jul 8, 2004
app pub date -
Dec 19, 2003
filing date -
Dec 31, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A locking device in an office chair structure of the type with articulation permitting the movement of the adjustable seat and seat back, with a mobile base from which a column rises, which is adjustable in height, and which supports a seat plane and a hinged seat back. The structure of the office chair includes a seat, attached at the front to the corresponding front side of a central support body secured to the top of the adjustable column along the vertical axis; a central support body, which, at the back, keeps in place the lower ends of the two support uprights of the armrests and a seat back connected to the seat, swinging and linked, near to the back part, to the central support body by means of a compression spring; Coaxially to the compression spring, there is a rod, one side of which is integral with the back rest, while the other side is axially mobile with respect to a static connecting body linked to the central support body of the chair.
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Family
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Cited Art Landscape
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