Chair with a tilting backrest
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United States of America Patent
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Oct 11, 2016
Grant Date -
Nov 26, 2015
app pub date -
Apr 20, 2015
filing date -
May 22, 2014
priority date (Note) -
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Abstract
A chair comprising: a base structure, a seat fixed to the base structure, a backrest, and a pair of oscillation joints which connect the backrest to the seat or to the base structure so as to allow tilting of the backrest around a transverse axis between a rest position and a backwardly tilted position, wherein each of said oscillation joints comprises: an essentially L-shaped rigid support a rigid lever articulated to the rigid support, and having a first and a second lever arm located on opposite sides with respect to the articulation axis, and an elastic device comprising a telescopic element and a compression spring, wherein the elastic device applies an elastic force between said rigid support and said first lever arm and wherein said second lever arm protrudes outwards from said rigid support and is fixed to a corresponding side edge of the backrest.
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