Chair having reclinable back

Details Chair having reclinable back Chair having reclinable back

1998-03-16

1999-12-21

Nelson, Jr., Milton

Chairs and seats

Movable back

Tiltable

297374, B60N 202

Patent

active

060039469

ABSTRACT:
In a chair having a frame, a fixed seat, and a pivotal back, the frame includes two bridge-supporting legs extending between an upper position and a lower position behind and below the upper position. A transverse bridge fitting removably into openings in the bridge-supporting legs bridges the bridge-supporting legs in at least two orientations. The bridge limits pivotal movement of the back, when pivoted downwardly and backwardly, to at least two reclined positions. In one contemplated embodiment wherein the transverse bridge comprises a beam fitting removably and nonrotatably into the openings and bridging the bridge-supporting legs in two such orientations, a spacer extending along and mounted fixedly to the transverse beam is interposed between the transverse beam and the back in one such orientation but not in the other orientation. In other contemplated embodiments wherein the transverse bridge comprises a transverse axle, similar spacers mounted fixedly to the transverse beam are interposed between the transverse beam and the back, each spacer having a bearing surface conforming generally to a spiral or to a closed, curved shape when viewed axially and adapted to bear against the back at varying radial distances from the axis.

REFERENCES:
patent: 514403 (1894-02-01), Allen
patent: 1215609 (1917-02-01), Arnold
patent: 2182516 (1939-12-01), Coble
Picture "A", showing chair with reclining back, admitted prior art.
Picture "B", showing chair with fixed back, admitted prior art.

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