Seat with adjustable backrest

Abstract

A seat is configured to comprise a plurality of notches on the arm of seat portion and two shaped shrouds of backrest each covered on the arm. Whereby raising the shrouds will cause the shrouds to disengage from the notches so as to freely move above along the notches and release of the shrouds will cause the shrouds to move downward to engage with the notches. By utilizing this, an angle adjustment of backrest with respect to seat portion is effected.

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