Trailer lock

Claim 1

In a truck, container, garage or similar structure having a compartment therein and an opening in one wall thereof adapted to be closed by a door and including a door movable between an open and a closed position, the improvement comprising: a vertically movable elongated rod means carried by said door adjacent an edge thereof; a plurality of pins pivotally mounted on said rod means; a plurality of pin apertures in said structure adjacent said door edge and means for guiding said pins into said pin apertures as said rod means moves downwardly to lock said door in said closed position, said guide means guiding said pins out of said pin apertures as said rod means is moved upwardly to allow said door to be opened; said rod means, said pins and said pin apertures being inaccessible from the exterior of said structure; a lifting bar rigidly secured to said rod means, said lifting bar being accessible from the exterior of said door and being adapted to be manually moved upwardly or downwardly to thereby move said rod means upwardly or downwardly; a key lock mechanism carried by said door and located behind the outer surface thereof, said lock mechanism having a locking element movable between a locking position and an unlocked position, said locking element cooperating with said rod means to lock the same downwardly when said locking element is moved into its locking position; said lock mechanism having a keyhole arranged in an axis which is substantially parallel to the plane of said door, and a recess within said door, said keyhole being accessible from the exterior of said door through said recess.