Back to results
US 9,844,269 B2Granted
Motorized linkage mechanism for hi-leg seating unit
AssigneeL&P Property Management Company
InventorJason Allan Bryant
Life of this patent
Estimating the term…
Abstract
A linkage mechanism provides motion capabilities for various chair types. For example, a linkage mechanism includes a combination of links that facilitate ottoman extension/closing and backrest recline/incline. In addition, a linkage mechanism includes a compact design that is usable with hi-leg style chairs having a relatively low seat height. A seating unit with a motorized linkage mechanism is also provided.
Claims20
A motorized linkage mechanism for an adjustable seating unit having forward and rearward ends, and spaced apart first and second sides, the linkage mechanism comprising:
- a pair of seat mounting plates, spaced from one another;
- a back crossbar coupled between the pair of seat mounting plates at the rearward end of the seating unit;
- an ottoman crossbar coupled between the pair of seat mounting plates at the forward end of the seating unit;
- an ottoman drive tube assembly coupled between the pair of seat mounting plates between the forward and rearward ends, the drive tube assembly comprising:
- a pair of lock mounting plates coupled respectively to the pair of seat mounting plates,
- a pair of ottoman control links rotatably coupled respectively to the pair of lock mounting plates,
- a drive tube fixedly coupled to the pair of ottoman control links and extending at least partially between the first side and the second side of the seating unit;
- a pair of footrest drive links having first and second ends, the pair of footrest drive links rotatably coupled respectively to the pair of ottoman control links at the first ends,
- a pair of rear pivot links, the pair of rear pivot links rotatably coupled respectively to the second ends of the pair of footrest drive links, the pair of rear pivot links being rotatably coupled respectively to the pair of seat mounting plates;
- a pair of base plates slidably coupled respectively to the pair of rear pivot links, and
- at least one lock bracket fixedly coupled to the drive tube between the first side and the second side, and inwardly spaced from the pair of seat mounting plates,
- at least one lock link coupled to the at least one lock bracket, the at least one lock link rotatably coupled to the ottoman crossbar;
- and
- a motorized drive mechanism coupled to the back crossbar and to the drive tube.
11 more elements
A linkage mechanism for an adjustable seating unit having forward and rearward ends, and spaced apart first and second sides, the linkage mechanism comprising:
- an ottoman drive tube assembly coupled between a pair of seat mounting plates between the forward and rearward ends, the drive tube assembly comprising:
- a pair of lock mounting plates coupled respectively to the pair of seat mounting plates;
- a pair of ottoman control links rotatably coupled respectively to the pair of lock mounting plates;
- a drive tube fixedly coupled to the pair of ottoman control links and extending at least partially between the first side and the second side of the seating unit;
- a pair of footrest drive links having first and second ends, the pair of footrest drive links rotatably coupled respectively to the pair of ottoman control links at the first ends;
- a pair of rear pivot links, the pair of rear pivot links rotatably coupled respectively to the second ends of the pair of footrest drive links, the pair of rear pivot links being rotatably coupled respectively to the pair of seat mounting plates,
- a pair of base plates slidably coupled respectively to the pair of rear pivot links;
- an ottoman crossbar coupled between the pair of seat mounting plates at the forward end;
- a first ottoman mounting bracket coupled to the ottoman crossbar between the first side and the second side;
- and
- a first front ottoman link rotatably coupled to the first ottoman mounting bracket,
- a first lock link that is rotatably coupled to the first front ottoman link;
- and
- a first lock bracket that is fixedly coupled to the drive tube and rotatably coupled to the first lock link.
11 more elements
A method of assembling a motorized linkage mechanism for an adjustable seating unit having forward and rearward ends, and spaced apart first and second sides, the method comprising:
- providing a pair of seat mounting plates;
- coupling a back crossbar between the pair of seat mounting plates at the rearward end of the seating unit;
- coupling an ottoman crossbar between the pair of seat mounting plates at the forward end of the seating unit;
- coupling an ottoman drive tube assembly to the pair of seat mounting plates between the forward and rearward ends, the drive tube assembly comprising:
- a pair of lock mounting plates coupled respectively to the pair of seat mounting plates,
- a pair of ottoman control links rotatably coupled respectively to the pair of lock mounting plates,
- a drive tube fixedly coupled to the pair of ottoman control links and extending at least partially between the first side and the second side of the seating unit;
- a pair of footrest drive links having first and second ends, the pair of footrest drive links rotatably coupled respectively to the pair of ottoman control links at the first ends,
- a pair of rear pivot links, the pair of rear pivot links rotatably coupled respectively to the second ends of the pair of footrest drive links, the pair of rear pivot links being rotatably coupled respectively to the pair of seat mounting plates,
- a pair of base plates slidably coupled respectively to the pair of rear pivot links,
- a pair of lock brackets fixedly coupled to the drive tube between the first side and the second side, and inwardly spaced from the pair of seat mounting plates, and
- a pair of lock links rotatably coupled respectively to the pair of lock brackets and to the ottoman crossbar;
- and
- coupling a motorized drive mechanism to the back crossbar and to the drive tube.
11 more elements
Dependencies are inferred from the claim text.