| 摘要 |
<p>The invention deals with a lock specially conceived for hotels or for any practical situation that requires constant variations in the opening code, and the use of different keys of the perforated card type. There are locks of the above mentioned type which incorporate a set of pins and counterpins that are moved into the opening position by means of a key and a complementary matrix, also consisting on a perforated card, and which must be replaced every time the code is changed. The lock presented in this invention does not incorporate any such complementary key-matrix, but a single setting plate, that remains within the lock and which is able to move or immobilize a series of auxiliary parts -formed by washers or similar- to cause this washers to position themselves or not inside the pin-counterpin housings; this is done in such a way that, after the setting plate moves in one direction and any key is inserted in the slot, when the setting plate is moved again, this time in the opposite direction, the key is coded in accordance with the requirements of the key that is inserted, since the washers corresponding to all housings facing key areas where no holes or perforations are present are thus withdrawn.</p> |
