Mobile ergonomic rotating adjustable chair with lumbar support
OwnerJeffrey JENKINSinventor
Life of this patent
Estimating the term…
Abstract
An apparatus for sitting, including: a keystone assembly which connects various parts of the apparatus; a back that provides support for at least a person's back or shoulders; a floating lumbar support, which provides support for a person's lower back, attached to the keystone assembly; a seat that can adjust between a forward tilted and reclined position; a plurality of rollers, disposed on the keystone assembly, on which the seat rests; a central column, attached to the keystone assembly, on which the seat can spin; and a lower torsion spring connected to the seat and disposed on the keystone assembly allowing controlled movement of the seat.
Claims20
An apparatus, comprising:
- a seat;
- a base with a column extending upwardly therefrom;
- a plurality of legs having first end portions connected to the base, the legs extending outwardly from the base;
- a support assembly having a body portion located on the column under the seat, the support assembly having a downwardly extending arm located below a forward portion of the seat, the downwardly extending arm having a lower end, the lower end having a first spring;
- at least one upwardly extending arm connected from the first spring to the seat;
- and
- a floating lumbar support having a lumbar support arm connected to the support assembly via a second spring,
- wherein the apparatus is usable in neutral upright, forward tilt, and reclined positions,
- wherein the at least one upwardly extending arm is adapted to move forward with respect to the downwardly extending arm, and the lumbar support arm is adapted to pivot forward with respect to the seat, as a sitter in the apparatus moves from the neutral upright position to the forward tilt position, and
- wherein the at least one upwardly extending arm is adapted to move rearward with respect to the downwardly extending arm, and the lumbar support arm is adapted to pivot backward with respect to the seat, as the sitter moves from the neutral upright position to the reclined position.
An apparatus, comprising:
- a seat;
- a base with a column extending upwardly therefrom;
- a plurality of legs having first end portions connected to the base, the legs extending outwardly therefrom;
- a support assembly having a body portion located on the column under the seat, the support assembly having a downwardly extending arm located below a forward portion of the seat, the downwardly extending arm having a lower end, the lower end having a first spring;
- at least one upwardly extending arm connected from the first spring to the seat;
- and
- a floating lumbar support having a lumbar support arm connected to the support assembly via a second spring,
- wherein the apparatus is usable in neutral upright, forward tilt, and reclined positions,
- wherein the first and second springs cooperate so as to enable the seat to have combined forward-and-backward sliding and front-and-back tilting movements, the combined forward-and-backward sliding and front-and-back tilting movements of the seat being actuatable as the sitter moves through from one position to another, and
- wherein the at least one upwardly extending arm, the downwardly extending arm, and the lumbar support are adapted to be generally parallel to one another when the apparatus is in the neutral upright position.
Dependencies are inferred from the claim text.