Safety lock of the type with deadlock plates, in particular for armored doors

Abstract

The safety lock of the type with deadlock plates, in particular for armored doors, comprises a keyhole in which a first operating key for a plurality of locks can be inserted, means for disabling saidfirst key operated by a second key that can be inserted in the keyhole and is operative only on the lock, and means for actuating at least one element for closing the lock irrespective of the deadloc k plates.

Description

technical field [0001] The present invention relates to a safety lock generally used for doors, gates, safes and the like with high flexibility of use. Background technique [0002] It is known that on construction sites, the doors of rooms under construction are provided with at least one lock of the type used for armored doors, so that throughout the construction site there are many locks which are opened or closed according to the work performed or completed in the premises. [0003] First of all on a jobsite where there is work left to be done (for example it could be of the plumbing or electrical type or to complete their inner workings) it is necessary to be able to access the work other than with a master key (i.e. the last key handed over to the owner of the room) Instead of opening the room, the room is opened (for example) using a so-called "site key" (ie a key kept in the hands of a worker who freely enters the room). [0004] Sometimes, in addition to master key...

AI Technical Summary

Problems solved by technology

[0011] The disadvantages of this solution are widespread due to the fact that the door needs to be affected by removing the escutcheon, a task performed by professionals

[0012] Considering the long-term need to use final pulleys instead of temporary pulleys and considering the need for two types of locks (one for doors that open on the left and one for doors that open on the right, usually only on the inside of the door) operation above) is significantly increased by the fact that the lock composition

[0013] Finally, it is pointed out that locks of the type described must be tested at the installation site and not in the factory, with all the disadvantages that can arise from this installation

[0014] Another type of lock is basically similar to the above lock, but instead of being designed to use the final pulley instead of the temporary pulley, it is only designed to replace the element that can change the mapping relationship of the lock

[0015] Thus, substantially only the mapping part is replaced at a lower cost compared to the aforementioned lock, even if there are still disadvantages (such as tolerances due to the general fact that the tests are not carried out in the workshop but directly at the installation site difference, resulting in a disadvantage that implies that the lock needs to be removed for installation in order to operate) is still the case

[0019] The disadvantage of this type of lock is the generally high cost of the coding device, so that the lever or plate it consists of must be able to be moved horizontally by means of special tools in addition to having to move in the vertical direction in order to improve the new coding.

[0020] Therefore, the mechanism of the lock is very complex and also tends to jam easily

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