Abstract An adjustable seat for use in combination with a chair or like support whereby individuals with limited muscular control such as persons afflicted with arthritis or aged persons may be assisted without exertion on their part in moving from a sitting position to a standing position, and vice versa. The seat may be an integral part of the chair or a separate assembly which is placed thereon, and includes a body supporting part that is controllably automatically actuatable by the person tiltably, upwardly and forwardly toward the front of the chair in the direction the person normally moves in rising from a sitting position within the chair to a standing position. Conversely, the body supporting part may be controllably actuated by the person in the opposite direction when the person desires to be seated thereby in the chair.
An adjustable seat assembly comprising a base, a seat member disposed above said base, drive means for swinging and elevating said seat relative to said base, bar means connectable with said base being movable in direction generally perpendicular to said base, means pivotally connecting said bar means to said seat, lever means comprising a first lever and a second lever operatively connected to each other in telescopic relation, the first lever being operatively connected to the bar means and the second lever being operatively connected to said seat, said drive means being operatively connected to said seat and actuable to swing said seat about said bar means pivotal connection, and said lever means being movable with said seat and operable to move said bar means relative to said base effective with said drive means to simultaneously swing and elevate said seat.
Claim 2
Dependent Claim
141 words
An adjustable seat assembly comprising a base, a seat member disposed above said base, drive means for swinging and elevating said seat relative to said base, bar means connectable with said base being movable in direction generally perpendicular to said base, means pivotally connecting said bar means to said seat, lever means comprising a first lever and a second lever operatively connected to each other in telescopic relation, the first lever being operatively connected to the bar means and the second lever being operatively connected to said seat, said drive means being operatively connected to said seat and actuable to swing said seat about said bar means pivotal connection, and said lever means being movable with said seat and operable to move said bar means relative to said base effective with said drive means to simultaneously swing and elevate said seat.
Claim 3
Dependent Claim
49 words
An adjustable seat assembly as defined in claim 1 and whereiN the bar means is provided with a gear rack and the first lever has gear means for meshing engagement with said rack whereby movement of said lever means causes the bar means to move relative to the base.
Claim 4
Dependent Claim
45 words
An adjustable seat assembly as defined in claim 1 and wherein swinging of the seat by said drive means causes said first lever to move telescopically relative to said second lever affecting the movement of said bar means to simultaneously swing and elevate said seat.