Adjustable chair
OwnerSue Vanmaastricht, Bruce Albeeinventors
Life of this patent
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Abstract
An adjustable chair with adjustable features to relieve the pressure on occupant's spine, tailbone, and pelvic bone when in sitting position. The adjustable chair includes a seat assembly and an adjustable support frame underlying the seat assembly with a plurality of legs and support casters. The seat assembly includes a backrest and a seat articulated together adjacent the lower edge of the backrest and rear edge of the seat. The automatic adjustable chair includes plurality of electrically motorized drive system to automate the various adjustable features. These drive systems are controlled by a single controller unit operable by the occupant from the sitting position.
Claims6
An adjustable chair comprising a backrest and a seat articulated together at a hinge point, the backrest including a vertical support structure that tilts about the hinge point and a lumbar support adjustable vertically and horizontally, and the seat including a seat pad and base structure, the seat pad being adjustable horizontally relative to the base structure and the hinge point with a gap between the seat pad and the hinge point, and the base structure having front and rear portions, each of the front and rear portions being independently adjustable vertically, so that as the vertical support structure tilts, the seat pad is adjusted horizontally away from the hinge point to maintain position of the seat pad below a thigh region of a person sitting on the adjustable chair wherein the gap is maintained between the seat pad and the hinge point regardless of the tilt of the vertical support structure so that an occupant's buttocks can remain in the gap and avoid a pressure point at the buttocks.
Dependencies are inferred from the claim text.