Patent ID: 8360483

Claim:
Door lock for doors of helicopters, the door lock comprising: a locking hook attachable to a door structure, the locking hook having a first elongated side surface extending a first length along the locking hook in a lengthwise direction along a first plane; a catch attachable to a fuselage structure, the catch having a bolt, the bolt having a longitudinal axis located substantially at a right angle to the first plane, the locking hook, by way of a manually activated linkage, being releasably connectable to the bolt to be movable between a blocking position when connected to the bolt and a release position when unconnected to the bolt; a spring-loaded catch hook connected by a bearing bolt to the locking hook, the catch hook being engageable with the bolt, the catch hook having a second elongated side surface extending a second length along the catch hook in the lengthwise direction along a second plane, the second length being different from the first length; the locking hook and the catch hook being supported by the bearing bolt equiaxially on a carrier plate, the locking hook and the catch hook each having a hook-shaped opening, the bearing bolt of the catch and locking hooks having a second longitudinal axis; and a spring-loaded pivoting wedge having a wedge surface and a catch step; and the spring-loaded pivoting wedge being pivotally supported on the carrier plate by a second bearing bolt having a third longitudinal axis, with the third longitudinal axis of the second bearing bolt being located substantially perpendicular to the second longitudinal axis of the bearing bolt of the catch and locking hooks.