Resources Contact Us Home
Articulated seating mechanism

Image Number 3 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
Semiconductor device
User interfaces
Method for producing organo-oligo silsesquioxanes
System for seeking for an optimal configuration of a bi-, tri- or multi-ventricular cardiac resynchronization implanted device
Switchgear operating apparatus and three-phase switchgear
Device and method for superimposing patterns on images in real time, particularly for guidance by location
Methods of prognosing a rheumatoid arthritis remission phenotype
  Randomly Featured Patents
Clutch mechanism with overtravel capability
Image recognition apparatus and method
Spectrally tailored raman pump laser
Apparatus and method for processing a microelectronic workpiece using metrology
Ignition circuit for explosive devices and the like
Semiconductor device including a bipolar structure
Devices and methods for raising and/or lowering a printing form
Lattice matched semiconductor growth on crystalline metallic substrates
Standard peripheral communication
Collapsible ink loader feed support