The present invention relates to a cabin lock mechanism (1) which enables to make a flexible connection between the cabin and the chassis in heavy vehicle cabins supported from one side and oscillating from the other side, and which has at least one flexible member (6) that is provided in the cabin colon (A) and that is stretched as a result of the force applied by the flexible end (3.1) mounted to the pusher (3) in case the cabin is closed, and that enable the cabin to be held locked in a stretched manner.
