Patent ID: 8960799
Filing Date: 2015-02-24
Classification: A47C

Abstract:
1. A lumbar support seat for positioning the pelvis and supporting the lumbar vertebrae, comprising: a seat main body having a top surface that is concave so as to correspond to the shape of a human's pelvis and bottom portion that is convex such that a front and rear portion of the seat main body extend upwardly from a middle portion of the seat main body; a lumbar supporting die forming a supporting plate for supporting the lumbar vertebra; one or more fixing frames which are secured to a rear side of the rear portion of the seat main body and extend upwardly from the rear portion; and one or more supporting frames which are secured to a rear side of the lumbar supporting die and extend downwardly from the lumbar supporting die to connect with the one or more fixing frames in a hinged connection; wherein an upper portion of each fixing frame includes a hinge connection protrusion that extends from a front portion of the fixing frame and a stopper protrusion that extends from a rear portion of the fixing frame, the stopper protrusion having an arc shape that extends upwardly overtop the hinge connection protrusion; and wherein a lower portion of each supporting frame forms a hinge connection groove and a stopper groove, the hinge connection groove configured to receive the hinge connection protrusion of a corresponding fixing frame to secure the supporting frame to the fixing frame, the stopper groove extending downwardly into the hinge connection groove to form a surface that the stopper protrusion contact when the lumbar supporting die is rotated away from the seat main body to thereby limit rotation.