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US 7,600,817 B2Granted
Chair
AssigneeHill-Rom Services, Inc.
InventorsKenneth L. Kramer, Marshall S. Dahneke, Reed N. Wilcox, David T. Schwanemann, John P. Biondo, Francis C. Ganance, Scott A. Schultz, Russell L. Hardy, Troy D. Acton
Life of this patent
Estimating the term…
Abstract
A chair with articulable support sections and an integrated lift system may have support sections mechanically linked such that a single actuation control device may articulate multiple sections. The chair includes configurable accessories directed to the comfort of an occupant of the chair. The support sections may include air cells to adjust firmness of support section surfaces.
Claims22
A chair comprising
- a frame,
- a seat support plate supported on the frame, the seat support plate including a first arcuate guide and a second arcuate guide, the first arcuate guide centered on a first axis and the second arcuate guide being centered on a second axis, the second axis spaced apart from the first axis,
- a back support plate including a first roller engaging the first arcuate guide and a second roller engaging the second arcuate guide,
- a motion control member pivotably coupled to the seat support plate at a first connection point and pivotably coupled to the back support plate at a second connection point, the motion control member actuating between an extended position wherein the back support plate is positioned to place the chair in a sitting position and a retracted position wherein the back support plate is positioned to place the chair in a reclining position.
1 more element
A lift chair comprising,
- a rear seat frame including a first arcuate guide and a second arcuate guide, the first arcuate guide centered on a first axis and the second arcuate guide being centered on a second axis,
- a support frame,
- a drive link coupled to the support frame and pivotably coupled to the rear seat frame,
- a front seat frame pivotably coupled to the support frame and the rear seat frame to control motion of the rear seat frame as the drive link articulates such that the rear seat frame articulates upwardly and forwardly,
- a back support plate including a first roller engaging the first arcuate guide and a second roller engaging the second arcuate guide, and
- a motion control member pivotably coupled to the rear seat frame at a first connection point and pivotably coupled to the back support plate at a second connection point, the motion control member actuating between an extended position wherein the back support plate is positioned to place the chair in a sitting position and a retracted position wherein the back support plate is positioned to place the chair in a reclining position.
3 more elements
A chair comprising
- a frame,
- a seat support plate supported on the frame, the seat support plate including a first arcuate guide and a second arcuate guide, the first arcuate guide centered on a first axis and the second arcuate guide being centered on a second axis, wherein the first arcuate guide is located vertically above the second arcuate guide, the first arcuate guide having a constant radius of curvature and the second arcuate guide having elliptical curvature,
- a back support plate including a first roller engaging the first arcuate guide and a second roller engaging the second arcuate guide,
- a motion control member pivotably coupled to the seat support plate at a first connection point and pivotably coupled to the back support plate at a second connection point, the motion control member actuating between an extended position wherein the back support plate is positioned to place the chair in a sitting position and a retracted position wherein the back support plate is positioned to place the chair in a reclining position.
1 more element
Dependencies are inferred from the claim text.