| 摘要 |
A lock cylinder and barrel that will only function and rotate when the correct key is inserted into the barrel aperture. The key will have cuts to match the pin mechanism of the lock cylinder. The key also has a projection or wing that will activate and depress a pivoted arm being part of the barrel assembly that locks into the cylinder housing. The special features of fee key with the wing and the locking arm will provide for two (2) distinct levels of keys and lock cylinders in a series of locks or master key system. Level one, being a special key with a wing that is deemed restricted and only sourceable from the lock system originator following presentation of a written order. Level two, being a standard key without a wing that can be sourced at any key cutting centre or locksmith. |
