Patent ID: 7123487
Filing Date: 2006-10-17
Classification: G06K

Abstract:
1. A card interface device comprising: a main housing body having an opening portion, a lid portion mounted on the main housing body in such a manner as to turn freely thereon to open or close the opening portion, a concave lock portion and a locking protrusion located adjacent to the concave lock portion, both of which are provided on the side of the opening portion of the main housing body in order to be able to lock the lid portion in the closed state, and a hooking piece provided on the lid portion and comprising a spring portion in a shape of a plate with a predetermined width and an arc-shaped protrusion formed at an end of the spring portion, wherein the lock protrusion has a greater curvature than a curvature of the arc-shaped protrusion, and the arc-shaped protrusion comes into contact with the locking protrusion and the concave lock portion under pressure by the aid of the spring portion when the lid portion is turning to open or close the opening portion, and receives a force opposing the turning direction before and after it passes through the locking protrusion to prevent from forming a dead point on a top of the lock protrusion.