ARTICULATING CHAIR

1 . An articulating chair comprising:

a support frame;

a seat connected to and rotatable relative to the support frame;

a backrest connected to and rotatable relative to the support frame; and

a linking arm having a first end connected to the backrest and a second end connected to the seat;

wherein:

the backrest and the seat are rotatable relative to the support frame in the same angular direction; and

the backrest is rotatable relative to the seat.

2 . The articulating chair of claim 1 , wherein an angular range of rotation of the backrest is greater than an angular range of rotation of the seat.

3 . The articulating chair of claim 2 , wherein the angular range of rotation of the backrest is approximately 50° and the angular range of rotation of the seat is approximately 25°.

4 . The articulating chair of claim 1 , wherein an angular rate of rotation of the backrest is greater than an angular rate of rotation of the seat.

5 . The articulating chair of claim 1 , wherein the linking arm is configured to rotate a front edge of the seat up when the backrest reclines.

6 . The articulating chair of claim 1 , further comprising a biasing member, wherein the backrest is moveable between an upright position and a reclined position and wherein the biasing member biases the backrest toward the upright position.

7 . The articulating chair of claim 6 , wherein the biasing member is connected between the support frame and the backrest.

8 . The articulating chair of claim 7 , wherein the biasing member is a gas spring.

9 . The articulating chair of claim 6 , wherein the biasing member is chosen from the group consisting of a gas damper, a linear actuator, a power drive, a motor drive, and an electric screw drive.

10 . The articulating chair of claim 1 , wherein the backrest comprises at least one massaging device.

11 . The articulating chair of claim 1 , wherein the seat comprises at least one massaging device.

12 . The articulating chair of claim 1 , wherein the linking arm has a curved shape.

13 . The articulating chair of claim 1 , further comprising:

a mounting bracket connected to the backrest and the first end of the linking arm; and

a side arm connected to the seat and the second end of the linking arm, the side arm being in substantially the same plane as the mounting bracket.

14 . The articulating chair of claim 1 , further comprising:

a first fastener connecting the backrest and the first end of the linking arm; and

a second fastener connecting the seat and the second end of the linking arm.

15 . The articulating chair of claim 14 , further comprising:

a first pivot, the backrest rotatable relative to the support frame about the first pivot; and

a second pivot, the seat rotatable relative to the support frame about the second pivot,

wherein a first distance between the first fastener and the first pivot is not equal to a second distance between the second fastener and the second pivot.

16 . The articulating chair of claim 15 , wherein:

the first fastener is below the first pivot; and

the second fastener is below the second pivot.

17 . An articulating chair movable between an upright position and a reclined position, the articulating chair comprising:

a support frame;

a seat pivotally connected to the support frame by a seat pivot;

a backrest pivotally connected to the support frame by a backrest pivot;

a linking arm having a first end connected to the backrest and a second end connected to the seat; and

at least one massaging device connected to at least one of the seat and the backrest;

wherein:

the backrest and the seat are rotatable relative to the support frame in the same angular direction; and

the backrest is rotatable relative to the seat.

18 . The articulating chair of claim 17 , wherein an angular range of rotation of the backrest is greater than an angular range of rotation of the seat.

19 . The articulating chair of claim 17 , wherein the linking arm is configured to rotate a front edge of the seat up when the backrest reclines.

20 . The articulating chair of claim 17 , further comprising a biasing member, wherein the backrest is moveable between an upright position and a reclined position and wherein the biasing member biases the backrest toward the upright position.