Reclining chair
First Claim
1. In a reclining chair comprisinga base structure including a vertically adjustable column,a back rest,a seat carrier supported by said column and having a forward end,link means pivoted by a first pivot disposed in the front of said column to said seat carrier at the forward end thereof and by a second pivot disposed behind said column to said back rest,a seat carried by said link means,said chair being adapted to assume a position for work, in which said seat is approximately horizontal and includes an angle of about 90°
- with said back rest, a position for reclining, in which said seat is rearwardly inclined and includes an obtuse angle with said back rest, and a plurality of intermediate positions between said positions for work and for reclining,locking means for locking said chair in any of said positions, andspring means operatively connected to said back rest and said link means for urging said chair from said position for reclining to said position for work,the improvement comprising shifting means connected to said back rest at a location spaced from said second pivot and to said link means for imparting to said link means forward and rearward displacements, respectively, in response to a pivotal movement imparted to said back rest by said occupant to shift said chair from said position for work to said position for reclining and from said position for reclining to said position for work;
said first pivot being carried by said link means and being mounted in said seat carrier in slide bearings for guiding said first pivot relative to said seat carrier during said forward and rearward displacements of said link means.
1 Assignment
0 Petitions
Accused Products
Abstract
A chair which is provided with a seat having an adjustable inclination comprises a seat carrier, which is pivoted by a first pivot to a link arrangement which carry the seat, a back rest, which is carried by a back rest carrier, which is pivoted to the link arrangement by a second pivot, and a device for shifting the chair from a position for work, in which the seat is approximately horizontal and includes with the back rest an angle of about 90 degrees, to a position for reclining, in which the seat is rearwardly inclined and includes an obtuse angle with the back rest. The shift from the position for reclining to the position for work is effected by movements of the body of the occupant and is assisted by springs. The seat carrier is provided with slide bearings and slots, in which the first pivot is displaceable away from the column as the chair is shifted to its position for reclining. The pivotal movement which is imparted to the back rest by the movement of the body of the occupant is adapted to be a transformed to the displacement by a shifting device which includes pairs of levers. Owing to that design, the center of gravity is displaced so that the back rest can be swung further to the rear without a risk that the stability of the chair might be endangered.
75 Citations
11 Claims
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1. In a reclining chair comprising
a base structure including a vertically adjustable column, a back rest, a seat carrier supported by said column and having a forward end, link means pivoted by a first pivot disposed in the front of said column to said seat carrier at the forward end thereof and by a second pivot disposed behind said column to said back rest, a seat carried by said link means, said chair being adapted to assume a position for work, in which said seat is approximately horizontal and includes an angle of about 90° - with said back rest, a position for reclining, in which said seat is rearwardly inclined and includes an obtuse angle with said back rest, and a plurality of intermediate positions between said positions for work and for reclining,
locking means for locking said chair in any of said positions, and spring means operatively connected to said back rest and said link means for urging said chair from said position for reclining to said position for work, the improvement comprising shifting means connected to said back rest at a location spaced from said second pivot and to said link means for imparting to said link means forward and rearward displacements, respectively, in response to a pivotal movement imparted to said back rest by said occupant to shift said chair from said position for work to said position for reclining and from said position for reclining to said position for work;
said first pivot being carried by said link means and being mounted in said seat carrier in slide bearings for guiding said first pivot relative to said seat carrier during said forward and rearward displacements of said link means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- with said back rest, a position for reclining, in which said seat is rearwardly inclined and includes an obtuse angle with said back rest, and a plurality of intermediate positions between said positions for work and for reclining,
Specification