A grasping device for a case standing on rollers or the like is attached to a frontal surface of a case. In order to design the grasping device in such a way that the case is easy to transport and it is reliably prevented from tipping even when the direction of travel changes, the grasping device has...http://www.google.se/patents/US6575493?utm_source=gb-gplus-sharePatent US6575493 - Collapsible trolley
