Tilt back chair and control
OwnerJonathan Ginatinventor
Life of this patent
Estimating the term…
Abstract
A tilt back chair provides for selective independent and concurrent movement of a chair back with respect to a chair seat. The seat is mounted to a spring biased bracket for pivotal movement about a seat tilt axis. The back is connected to a pair of pivot brackets projecting upwardly from the seat to provide for pivotal movement about a back tilt axis located above the seat and rearwardly of the seat tilt axis. When the seat is in a neutral seating position it can tilt downwardly at its forward edge about the seat tilt axis. The back is biased for displacement with the forward tilt of the seat and is tiltable rearwardly independently of the seat. The seat can also be locked in a fixed position.
Claims19
A chair comprising:
- a seat member;
- a bracket assembly mounted to said seat member and having means for connection of said seat member to a base pedestal, said bracket assembly further including pivot means for pivotable movement of said seat member relative to said base pedestal;
- a pair of back support brackets each connected to said seat member along opposite edges thereof and extending upwardly from said seat member;
- a generally U-shaped frame member having opposed end portions extending from an intermediate portion, said end portions each being pivotally connected to one of said back support brackets with said intermediate portion disposed beneath said seat member;
- and
- a back support member connected at a first end to the intermediate portion of said frame member and at a second end to a back member.
A chair comprising a seat member and a back member, a bracket assembly mounted to the seat member having means for connection of said seat member to a base pedestal, said bracket assembly further including pivot means for tiltable movement of said seat member about a transverse seat tilt axis, pivot bracket means mounted on and projecting above said seat member, a frame member for supporting said back member from the pivot bracket means, said back member being tiltable about a transverse back tilt axis defined by the pivot bracket means, said transverse back tilt axis being displaced forwardly with respect to the back member, with said seat member and said back member each being adapted for selective independent and concurrent movement.
Dependencies are inferred from the claim text.