Resources Contact Us Home
Articulated seating mechanism

Image Number 13 for United States Patent #7234772.

An articulated seating mechanism including a rocker base, a seat plate, and a pair of side rails, each having an arcuate side. The side rails may be disposed downwardly from the seat plate or upwardly from the rocker base. First and second arcuate gear portions are disposed on the arcuate side of each of the side rails and a first and second substantially flat or linear gear racks are affixed either to the underside of the seat plate or the upper side of the rocker base, so as to bring the linear gears and the arcuate gears into intermeshing relationship. A back support is pivotally connected to the seat plate and to first and second back links, and the back links are pivotally connected to the rocker base to provide a rocking motion of the seat plate and a dynamic synchronous adjustment of the angular variation between the seat plate and the back support. The linear gear racks move in a tangent to the arcuate gear portions to provide a moving fulcrum during rocking movements. No springs or other force means are necessary to assist in moving easily from a reclined position to task.

  Recently Added Patents
Sampling filter device
Method for production of a thermoelectric apparatus
High-resolution, active reflector radio frequency ranging system
Mono-body defibrillation probe
Method and apparatus for blind signal extraction
Memory interface circuit, memory interface method, and electronic device
  Randomly Featured Patents
Dynamoelectric claw-shaped rotor with magnet retainer
Rotating elevator mechanism for article transfer in an automated storage system
Transparent doorknob with embedded ornament
EEPROM memory architecture optimized for embedded memories
Method for carrying out repair, maintenance or testing apparatus, components and the like in hot cells
Image processing apparatus for discriminating image field of original document plural times and method therefor
Side-by-side dual port USB connector
Semiconductor device and method for manufacturing the same
Indexing device
Method and system for tint control for component video signals