| 摘要 |
The main lock (3) has a latch (9) which is within a U shaped keep (13) in the closed position. With correct motor (25) operation a rod (23) enables the handle (29) to open the lock and door through a linkage (7) and rotating members (16,19). On motor failure a handle lock (32) permits the handle (29) to take an emergency position which is sufficient to release the latch even without the motor operated rod |
