Patent ID: 8011216

Claim:
A storage and locking arrangement for storing keys to locks and controlling the use of keys, comprising: a closed box, a central lock and a key for the central lock, as well as a number of auxiliary locks, each auxiliary lock having a designated key whereby the locks are cylinder locks arranged in the closed box so that they can be unlocked using keys from outside of the box, and wherein the lock cylinder of the central lock includes a bolt element configured to rotate with the lock cylinder of the central lock, wherein the bolt element is arranged to control the turning of the lock cylinders of the auxiliary locks so that when the central lock is locked, the bolt element prevents the keys to the auxiliary locks from being removed from their respective locks, and that once the central lock is unlocked, the bolt element is arranged to allow at selected positions of rotation the operation of any single auxiliary lock at a time using the corresponding key to the auxiliary lock so that the key to the auxiliary lock can be removed from the auxiliary lock, wherein the auxiliary locks are arranged in an arc around the central lock, and the bolt element is a plate-like piece having a guide slot corresponding to said arc, and wherein shaped ends of the lock cylinders of the auxiliary locks or bolt elements attached to the lock cylinders of the auxiliary locks are arranged in the guide slot so that the guide slot normally prevents turning the lock cylinders of the auxiliary locks, and wherein the guide slot has an extension section that allows turning the lock cylinder of an auxiliary lock.