Mobile robot including a lift assembly and a low-profile drive mechanism

Abstract

A mobile robot includes a lift assembly, a low-profile drive mechanism, and a plurality of wheels such that the mobile robot is moveable. The lift assembly includes a base and a platform moveable between a lowered state where the platform is proximal to the base and an elevated state where the platform is distal to the base. The low-profile drive mechanism includes a plurality of electric motors arranged in series along an axis to define an initial electric motor, one or more intermediate electric motors, and a final electric motor. The low-profile drive mechanism also includes a gear mounted to each of the electric motors and an output member driven by the gear mounted to the final electric motor to receive the combined rotational torque from the gears. The output member is coupled to the platform to move the platform between the lowered state and the elevated state.

Dependencies are inferred from the claim text.