Turntable

Details Turntable Turntable

1994-06-15

1996-03-19

Cranmer, Laurie K.

Chairs and seats

Movable bottom

297240, 297337, A61G 710

Patent

active

054998620

ABSTRACT:
A top plate (12) with a padded cushion (18) is pivotably mounted on a bottom plate (16) . The padded cushion (18) is fixed in position on the top plate (12) by an integral rigid retaining ring ( 20) , with inner beading (34) of the retaining ring (20) extending in a clamping fashion beneath outer beading (26) of the top plate (12). An annular groove (22) close to the outer edge of the top plate (12) means that the remaining annular wall (24) with the marginal beading (26) is only connected to the top plate (12) via a thin bridge, said bridge constituting an articulation zone (28), so that, when the retaining ring (20) is lifted off, the annular wall (24) functions as a flexible tongue and can be moved elastically inwards.

REFERENCES:
patent: 5000513 (1991-03-01), Schmidt
patent: 5390378 (1995-02-01), Janisch
patent: 5390978 (1995-02-01), Janisch

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