Patent ID: 6340085
Filing Date: 2002-01-22
Classification: B64D,B65G

Abstract:
A roller drive unit for the transportation of freight containers in a plurality of directions comprising:a substantially annular fixing means for attachment of the roller drive unit to a floor of a cargo hold; a drive roller for rotational engagement with a freight container to be transported; and a carrier means for the drive roller and relative to which the drive roller can be retracted and can be raised into an operation position for rotational engagement with said freight container, the carrier means being located within the annular fixing means and being rotatable relative thereto in a direction perpendicular to the rotational plane of the floor, wherein the carrier means defines a supporting surface and the fixing means defines a bearing surface which bears the supporting surface of the carrier means, and wherein the carrier means defines a substantially cylindrical hollow body that is provided with a flange, an undersurface of the flange defining the supporting surface.