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US 10,299,601 B2Granted
Auto-adjusting headrest for an ergonomic chair
AssigneeSv Tool Corporation
InventorsJohn M. Speicher, Che Voigt
Life of this patent
Estimating the term…
Abstract
An ergonomic chair with an auto-adjusting headrest having a base assembly including floor base, a seat bottom, and vertical structure. A seat back frame and back plate are pivotally attached to the base assembly. An arc-shaped guide bar and head rest restraint are slideably disposed on the back plate. such that the back plate slides approximately parallel to the seat back frame. Arc shaped guide bar rotates as the seat back is tilted rearward and forward.
Claims17
A chair, comprising:
- a seat base;
- a seat back rotatable in relation to said seat base;
- a head rest assembly slidably mounted to said seat back, said headrest assembly including a head restraint mounted atop an arcuate and slidable guide bar, said guide bar slidably movable in an arc having a center of rotation that may be adjusted vertically in relation to said seat back by a user;
- wherein slidable movement of said guide bar is actuated by a flexible cable drive rotating said head restraint forward and upward on at least one slide and a spring that urges said head restraint downward and rearward toward a backside of said seat back.
1 more element
A chair, comprising:
- a base assembly including a floor base, seat bottom, and vertical structure;
- a seat back frame pivotally attached to said base assembly;
- a headrest frame attached to said seat back frame;
- an arc-shaped guide bar slideably disposed in said headrest frame;
- and
- a head rest plate pivotally affixed to said arc-shaped guide bar;
- wherein said headrest frame, said arc-shaped guide bar and said head rest plate operate as an assembly which can be vertically adjusted.
4 more elements
An ergonomic chair and auto-adjusting headrest assembly, comprising:
- a seat base;
- a seat back pivotally mounted to said seat base;
- an arc-shaped headrest assembly frame mounted on said seat back, said headrest assembly frame having slides;
- an arc-shaped guide bar slideably disposed in said slides;
- a headrest plate pivotally mounted to an upper end of said guide bar;
- wherein said guide bar moves in a generally arc-shaped motion in said slides as said seat back is tilted rearward from an upright to a generally reclined position or upward from a generally reclined to a generally upright position.
3 more elements
Dependencies are inferred from the claim text.