Tilt mechanism for a chair

Details Tilt mechanism for a chair Tilt mechanism for a chair

2007-12-12

2009-11-03

Nelson, Jr., Milton (Department: 3636)

Chairs and seats

Movable bottom

Interconnected with back for relative concurrent movement

Reexamination Certificate

active

07611202

ABSTRACT:
A tilt mechanism provides improved coordination in the motions of a chair seat and a chair back during chair tilt. In one aspect, the tilt mechanism includes a seat base, a back bracket, a back support bar, a guide track and a back follower member. The seat base is slidably coupled to the chassis and rigidly coupled to the chair seat. The back support bar is configured for moveable engagement with the back bracket coupled with the chair back. Additionally, the back follower member, coupled with the chair back, is received within one or more channels formed in the guide track for moveable engagement therewith. A proportional and asynchronous action is achieved via the back bracket moving relative to and in engagement with the back support bar, the back follower member moving within the guide track and the seat base sliding forwardly relative to the chassis.

REFERENCES:
patent: 1414637 (1922-05-01), Gell
patent: 2143098 (1939-01-01), Wohlk
patent: 2182598 (1939-12-01), Owler
patent: 5660439 (1997-08-01), Unwalla
patent: 5735574 (1998-04-01), Serber
patent: 6641214 (2003-11-01), Veneruso
patent: 6685267 (2004-02-01), Johnson et al.
patent: 2429405 (2007-02-01), None

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