Abstract: In an embodiment a resilient lever is placed between the top body and the bottom body of a flip top electronic apparatus. The axles of the lever are located so that a front edge of the top body stays near the bottom body during the movement of the top body over a keypad on the bottom body. An end of the top body jumps or slides over the bottom body, e.g. keyboard. The resilient feature gives the locking effect in the open and closed positions of the apparatus. There can be one, two or more resilient members. In an embodiment a rail is positioned to the bottom body. A resilient follower is attached to the top body. The resilient follower is also attached to the rail. Thereby these elements bound top body's front edge to the bottom body. The first body portion can be a top body having a display chassis, for example a lid. The second body portion can be a bottom body having a keyboard or a keypad, for example the second body portion can be an engine block having a chassis.