Patent ID: 8602136

Claim:
A mobile frame for moving less able-bodied persons, comprising: at least one base bearing structure; at least one drive wheel which is rotatable about a wheel central axis; at least one wheel drive configured for driving the drive wheel about the wheel central axis; at least one drive wheel support which is connected to the bearing structure in a manner pivotable about a pivot and with which the drive wheel is connected for rotation about the wheel central axis; a pivot drive configured for pivoting the wheel support about the pivot with respect to the bearing structure; and an operating device configured to operate the wheel drive and the pivot drive for moving the frame, the operating device comprising: a handle unmovably connected to the bearing structure; a force detection assembly provided on the handle and/or on the bearing structure, and configured for measuring an elastic deformation of the operating handle and/or the bearing frame, which occurs under the influence of a force exerted by a user on the handle and for converting this measured deformation into signals containing information about both the size of the force and the direction of force which is exerted on the handle; and a control, of which an input is connected to the force detection assembly, and of which a first output is connected to the at least one wheel drive and of which a second output is connected to the at least one pivot drive, the control being configured for energizing the pivot drive for controlling the rotational position of drive wheel support about the pivot depending on the direction of force, and wherein the control is configured for energizing the wheel drive depending on the size of force exerted on the handle.