Reclining chair
A reclining chair includes a stationary frame having first and second sides, a seat, a seat back, and a foot rest mounted to the frame, a linkage mechanism mounted to the frame and configured to move the seat, the seat back, and the foot rest between a sitting position and a reclining position and having a driving arm adjacent to the first side and configured to drive the linkage mechanism, and a rotatable arm mounted to the first side of the stationary frame.
1. A reclining chair comprising:
a stationary frame having first and second sides;
a seat, a seat back, and a foot rest mounted to the frame;
a linkage mechanism mounted to the frame and configured to move the seat, the seat back, and the foot rest between a sitting position and a reclining position and having a driving arm adjacent to the first side and configured to drive the linkage mechanism by rotational and translational motion between a first location and a second location relative to the stationary frame;
a rotatable arm mounted to the first side of the stationary frame for rotational motion about a pivot axis; and
a transmission linkage on the first side having a first end coupled to the rotatable arm and a second end coupled to the driving arm;
wherein the transmission linkage comprises at least two universal joints and a telescoping joint to maintain the coupling to the rotatable arm and to the driving arm as the driving arm translates and rotates.
2. The reclining chair of claim 1 wherein the first location of the driving arm is when the seat, the seat back, and the foot rest are in the sitting position and the second location of the driving arm is when the seat, the seat back, and the foot rest are in the reclining position.
3. The reclining chair of claim 2 wherein the translational motion of the driving arm is non-linear.
4. The reclining chair of claim 1 wherein the telescoping joint is located between the universal joints.
5. The reclining chair of claim 4 wherein the telescoping joint further comprises a first arm received by a second arm and wherein the first arm is configured to move telescopically within the second arm.
6. The reclining chair of claim 5 wherein the first and second arms are keyed to prevent rotation relative to each other.
7. The reclining chair of claim 6 wherein the first and second arms comprise corresponding square cross sections.
8. The reclining chair of claim 1 wherein the rotatable arm is mounted to the first side of the stationary frame at the pivot point.
9. The reclining chair of claim 8 wherein the rotatable arm is configured to be rotatable between a first position corresponding with the sitting position and a second position corresponding with the reclining position.
10. The reclining chair of claim 1 , wherein the rotatable arm is a lever.
11. The reclining chair of claim 8 wherein telescoping joint is between the universal joints.