Patent ID: 11993163

Abstract:
The present invention provides a storage system comprising at least one container vehicle (6′,300′,400), a horizontal rail grid (108,5) and a charging system for charging a rechargeable power source (20) of the container vehicle, wherein the container vehicle comprises a first set of wheels (32a) and a second set of wheels (32b) for moving the container vehicle upon the rail grid; the first set of wheels (32a) is displaceable in a vertical direction between a first position, wherein the first set of wheels may move the container vehicle in a first direction (X), a second position, wherein the first and the second set of wheels are in contact with the rail grid, and a third position wherein the second set of wheels may move the container vehicle in a second direction (Y) perpendicular to the first direction; the charging system comprises two separated charge-receiving elements (21a,21b) arranged on the container vehicle and connected to the power source (20), and a charging station (22) comprising two separated charge-providing elements (23a,23b) connected to a power source charger (24); and each of the charge-receiving elements (21) comprises a first contact surface (25), and each of the charge-providing elements (23a,23b) comprises a second contact surface (26); wherein the first contact surfaces are arranged to be contactable with the corresponding second contact surfaces when the container vehicle is positioned above the charge-providing elements.