Mechanical chair

Details Mechanical chair Mechanical chair

1993-10-21

1995-04-11

Lopez, F. Daniel

Chairs and seats

Movable bottom

Interconnected with back for relative concurrent movement

297322, 29735413, A61G 1500

Patent

active

054051886

ABSTRACT:
An adjustable chair, such as a dental patient chair includes a chair back pivotally connected to a frame and mechanically linked to a travelling seat assembly so that as the chair back is pivoted, the distance between the back and seat assembly increases as the back is moved to an upright orientation and deceases as the back is moved to a reclined orientation. Linkage between the back and seat assembly may include a plate connected to rotate on an axis as the back is pivoted, and eccentrically connected to the travelling seat assembly.

REFERENCES:
patent: 4362336 (1982-12-01), Zapf et al.
patent: 4452486 (1984-06-01), Zapf et al.
patent: 4572573 (1986-02-01), Yoshikawa et al.

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