Patent ID: 9022400
Filing Date: 2015-05-05
Classification: A61G

Abstract:
1. A motorized wheelchair comprising: a chassis, a seat attached to the chassis, and at least one motor designed to move the chair, wherein the chair comprises two front suspension arms, namely an upper front suspension arm and a lower front suspension arm, each front suspension arm being connected by a pivot link to the chassis and by a pivot link to a support assembly of a front wheel, such that the pivot links and form a deformable parallelogram, two rear suspension arms, namely an upper rear suspension arm and a lower rear suspension arm, each rear suspension arm being connected by a pivot link to the chassis and by a pivot link to a support assembly of a rear wheel, such that the pivot links and form a deformable parallelogram, and connecting means arranged to connect one of the front suspension arms to one of the rear suspension arms and to convert each rotational movement of said front suspension arm with respect to the chassis into a reverse rotational movement with respect to the chassis of the rear suspension arm to which it is connected by the connecting means, and vice versa, any pitching movement of the chair thereby being converted into a substantially vertical movement of the seat parallel to the plane formed by the bearing points of the wheels of the chair on the ground.