Patent ID: 7040672

Claim:
In a bolt lock for doors and flaps and comprising a flat-bar bolt that is mounted to move parallel to an edge of a door and that has disposed thereon at least one locking section, and further comprising a bolt holder mounted on a frame of said door to receive and hold said locking section, and also comprising an actuating means for longitudinal displacement of said flat-bar bolt between an unlocked and a locked position, the improvement wherein: said locking section comprises at least one twisted portion with respect to a longitudinal axis of said flat bar bolt such that said twisted portion is disposed at an angle to an orientation of said flat-bar bolt and provides a locking surface; and said bolt holder is provided with a catch that is disposed at the same angle relative to said flat-bar bolt as is said locking surface of said locking section, said catch being adapted to engage over said locking surface.