Chassis for a chair seat

Details Chassis for a chair seat Chassis for a chair seat

1999-11-22

2000-10-17

Nelson, Jr., Milton

Chairs and seats

Movable back

Tiltable

2973005, B60N 202, A47C 1024

Patent

active

061319988

ABSTRACT:
A chassis is provided for a chair having a backrest and a chair seat. The chassis includes a swivel seat mounted to an underside of the chair seat, a first connecting seat, and a second connecting seat. The first connecting seat includes a mediate portion pivotally connected to a mediate portion of the swivel seat. The second connecting seat includes a first end having an upper portion pivotally connected to an end of the first connecting seat and a lower portion pivotally connected to an end of the swivel seat. The second connecting seat further includes a second end securely connected to the backrest to move therewith. When the backrest is moved rearward, the chair seat swivels through an angular displacement smaller than that of the backrest.

REFERENCES:
patent: 4830431 (1989-05-01), Inoue
patent: 5066069 (1991-11-01), DeGelder
patent: 5152580 (1992-10-01), Stumpf
patent: 5280998 (1994-01-01), Miotto et al.
patent: 5573303 (1996-11-01), Doerner
patent: 5658045 (1997-08-01), Van Koolwijk et al.

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