Patent ID: 7618090

Claim:
An abdominal support swivel chair comprising a support base, disposable support means secured to said support base for displacing said chair on a support surface, an adjustable center post assembly extending vertically from a center of said support base along a central vertical axis of said support base, a saddle seat having a rear buttocks support section and a central narrow frontal projecting section merging therewith through opposed side thigh cavities, said saddle seat being secured to a seat frame connected at a top end of said adjustable center post, an abdominal support pad secured to an adjustable support arm connected to said seat frame forwardly of the central narrow frontal projecting section, the abdominal support pad comprising a support base of inverted T-shape configuration defining opposed lower side wings and a central vertical projecting arm having a forward outward tilt profile, said support arm having an upper securing end section adapted for securement of said abdominal support pad, said adjustable support arm being connected forwardly of said seat frame and aligned therewith, adjustable connecting means to position said abdominal support pad at a desired vertical position and a forwardly inclined position for the comfort of a user person, said adjustable connecting means comprises a vertical adjusting mechanism and a horizontal adjustment mechanism, said vertical adjusting mechanism having a securement member secured at a front end of said seat frame, a vertical through slot in said securement member, and arresting means for arresting engagement of said adjustable support arm in said through slot, said adjustable support arm being a flat metal bar, said through slot receiving a straight lower section of said flat metal bar therethrough, said flat metal bar also having an inwardly and upwardly inclined intermediate section above said straight lower section and merging into a lower end of an attachment end section disposed substantially parallel to said lower section and constituting said upper securing end section thereof, said arresting means having a threaded bolt portion for providing wedging engagement of a portion of said straight lower section extending in said through slot, and hand-operable means to engage and disengage said arresting means, said abdominal support pad being dimensioned to provide freedom of arm movement to a user person and supporting a central area of the abdomen of a user person, said horizontal adjusting mechanism comprising a pivot connecting the securement member to said seat frame such that the abdominal support pad is pivotable with respect to the seat frame, and biasing means related to the pivot to bias the abdominal support pad toward a substantially vertical position to oppose a force to a user leaning forwardly on the abdominal support pad when seated in the chair.