US Patent 9220326 Luggage construction

An article of luggage, such as a trolley suitcase, comprises a shape defining framework. The article of luggage may comprise a shape defining framework and a towing handle telescopically incorporated into the shape defining framework. The shape defining framework may be formed from a plurality of elongate members interconnected at their end regions by connection pieces. At least one wheel can be positioned on the shape defining framework such that when the article of luggage is moved from a standing position to a towing position, the wheel(s) enables the article of luggage to roll along the ground in the direction it is being towed.