Chairs and seats – Supplemental seat
Patent
1988-10-07
1990-11-20
Brown, Peter R.
Chairs and seats
Supplemental seat
297349, A47D 110
Patent
active
049713922
ABSTRACT:
A safety swivel chair with a child restraint device comprises a pedestal formed with a circular opening bordered by a lip. A substantially circular disk-shaped base is formed with a peripheral groove around its edge which receives the lip of the pedestal therein to pivotally engage the base to the pedestal. The base includes a pivot plate with a peripheral projection positioned to cover the opening with the projection slidingly supported on the lip, an anchor plate having a peripheral extension being positioned across the opening opposite the pivot plate with the lip between the extension and the projection, and means for holding the anchor plate in a fixed relationship with the pivot plate to establish the groove between the extension and the projection. A plurality of ball bearings are operatively mounted between the lip and the projection for pivotably supporting the projection on the pivot plate. The chair seat is reclinably attached to the base for orientation in either an upright or a reclined position, and a latch mounted on the pedestal is engageable with the base to selectively hold the chair seat in a fixed relationship with the pedestal.
REFERENCES:
patent: 4155593 (1979-05-01), Swenson et al.
patent: 4536029 (1985-08-01), Rogers, Jr.
patent: 4570997 (1986-02-01), Tanizaki et al.
patent: 4705256 (1987-11-01), Hofrichter
patent: 4707024 (1987-11-01), Schrader
patent: 4762364 (1988-08-01), Young
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