Rocker/glider recliner linkage with projected back pivot point
A linkage for use in reclining furniture may include a back bracket supported by forward and rear back pivot links. The bottom of the rear back pivot link may be pivotably coupled to a rear lift link and the bottom of the forward back pivot link may be pivotably coupled to the rear lift link in a different location. A control link may be pivotably coupled on one end to one of the forward back pivot link and the rear back pivot link. The control link may pull the pivoting linkage of the back bracket and the forward and back pivot links as the overall linkage is moved from a closed to a TV to a full-recline position. The resulting pivot point for the back is projected upwardly and forwardly, to a point where an upholstered back and seat meet on a finished chair.
1. A motor-driven seating unit comprising:
a first linkage coupled to a first side of a base unit;
a second linkage coupled to a second side of the base unit opposite the first side, the first and second linkages configured to move between a closed position where an ottoman portion is folded and an open position where the ottoman portion is unfolded;
a cross-tube coupled on a first end to the ottoman portion of the first linkage at a first rear ottoman link, the cross-tube coupled on a second end to the ottoman portion of the second linkage at a second rear ottoman link; and
a motor coupled to the cross-tube and configured to move the first and second linkages between the closed position and the open position.
2. The motor-driven seating unit of claim 1 further comprising:
a first bracket coupled to the first rear ottoman link at a first pivot point;
the first end of the cross-tube fixedly coupled to the first bracket;
a first ottoman control link pivotably coupled to the first bracket between the first pivot point and the fixed coupling;
the first ottoman control link pivotably coupled to a first front ottoman link of the ottoman portion of the first linkage;
a second bracket coupled to the second rear ottoman link at a second pivot point;
the second end of the cross-tube fixedly coupled to the second bracket;
a second ottoman control link pivotably coupled to the second bracket between the second pivot point and the fixed coupling; and
the second ottoman control link pivotably coupled to a second front ottoman link of the ottoman portion of the second linkage.
3. The motor-driven seating unit of claim 1 , wherein a clevis is fixedly coupled to the cross-tube, wherein the motor is pivotably coupled to the clevis.
4. The motor-driven seating unit of claim 1 , wherein the motor includes a track and a drive block that is configured to move along the track as the first and second linkages move between the closed position and the open position.
5. The motor-driven seating unit of claim 4 further comprising:
a first motor bell crank pivotably coupled to a first control link of the first linkage, a second motor bell crank pivotably coupled to a second control link of the second linkage; and
a rear motor tube having a third end opposite a fourth end, the rear motor tube extending between the first and second linkages and fixedly coupled on the third end to the first motor bell crank and fixedly coupled on the fourth end to the second motor bell crank,
the rear motor tube being pivotably coupled to the drive block.
6. The motor-driven seating unit of claim 5 ,
wherein the first motor bell crank is pivotably coupled to a first end of a first strut, and a second end of the first strut is pivotably coupled with a first seat mounting plate of the first linkage,
wherein the second motor bell crank is pivotably coupled with a first end of a second strut, and a second end of the second strut is pivotably coupled with a second seat mounting plate of the second linkage.
7. The motor-driven seating unit of claim 4 further comprising:
a first motor bell crank pivotably coupled to a first lift link of the first linkage, a second motor bell crank pivotably coupled to a second lift link of the second linkage; and
a rear motor tube having a third end opposite a fourth end, the rear motor tube extending between the first and second linkages and fixedly coupled on the third end to the first motor bell crank and fixedly coupled on the fourth end to the second motor bell crank,
the rear motor tube being pivotably coupled to the drive block.
8. The motor-driven seating unit of claim 7 ,
wherein the first motor bell crank is pivotably coupled to a first end of a first strut, and a second end of the first strut is pivotably coupled with a first base plate of the first linkage,
wherein the second motor bell crank is pivotably coupled with a first end of a second strut, and a second end of the second strut is pivotably coupled with a second base plate of the second linkage.
9. The motor-driven seating unit of claim 8 , wherein the first strut and the second strut are each planar links.
10. The motor-driven seating unit of claim 1 , wherein the seating unit comprises a rocker-recliner seating unit or a glider-recliner seating unit.
11. A motor-driven seating unit comprising:
a first linkage coupled to a first side of a base unit;
a second linkage coupled to a second side of the base unit opposite the first side, the first and second linkages configured to move between a closed position where an ottoman portion is folded and an open position where the ottoman portion is unfolded;
a cross-tube coupled on a first end to the ottoman portion of the first linkage at a first rear ottoman link, the cross-tube coupled on a second end to the ottoman portion of the second linkage at a second rear ottoman link;
a motor coupled to the cross-tube and configured to move the first and second linkages between the closed position and the open position;
a first bracket coupled to the first rear ottoman link at a first pivot point;
the first end of the cross-tube fixedly coupled to the first bracket;
a first ottoman control link pivotably coupled to the first bracket between the first pivot point and the fixed coupling;
the first ottoman control link pivotably coupled to a first front ottoman link of the ottoman portion of the first linkage;
a second bracket coupled to the second rear ottoman link at a second pivot point;
the second end of the cross-tube fixedly coupled to the second bracket;
a second ottoman control link pivotably coupled to the second bracket between the second pivot point and the fixed coupling; and
the second ottoman control link pivotably coupled to a second front ottoman link of the ottoman portion of the second linkage.