| 摘要 |
A safety lock of the type with safety plates or gorges comprises means of arrest that withhold temporarily one or more gorges in a position moved away from their resting position, in such a way as to enable actuation of the lock with a first key, and means for deactivating said means of arrest in such a way as to enable actuation of the lock only with a second key different from the first key. Preferably, the adaptation of the lock to operate only with the second key is obtained simply as a result of using the second key in the lock. |
