A type of chair that can be used for sitting or reclining

Abstract

A reversible chair consists of a vertical modified parallelogram structure and a seat structure. The sides of the parallelogram form the base of the chair. The two vertical modified parallelogram bases are installed on both sides of the seat surface and form a whole with the seat. The vertical modified parallelogram structure consists of two parallelogram bases (armrests), a chair frame, a return spring, a backrest, a crossbar, a naturally drooping U-shaped support rod installed on the backrest and crossbar, a drooping base, and a seat. The seat structure consists of a seat surface, a turntable, a seat post, a support, and pulleys. The parallelogram structure is installed on the seat structure and can move and deform back and forth, allowing the chair to transform into a reversible chair for both sitting and reclining.

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