A locking mechanism mounted on a cover to lock the cover onto a frame. In the locking mechanism, when a handle shaft is rotated, a first cam element of a rotating sheet drives a second cam element of a sliding sheet due to rotation. A second horizontal fastening element of the sliding sheet slides towards...http://www.google.fr/patents/US6834895?utm_source=gb-gplus-shareBrevet US6834895 - Locking mechanism