In conclusion
Although commercially available are keys to the various bills: a tooth alveolar-profile wave, magnetic, etc.. See Fig.9, despite the apparent diversity, the concepts mentioned above with regard to the principles of operation, in essence do not differ greatly among themselves. In the selection of a cylinder is then advised to follow the requirements mentioned above, if you want to dispose of a good quality.
To guarantee these requirements, it is best to rely on manufacturers and distributors of undoubted reliability, long active in the field seriously, placing a technologically advanced and able to cope with changing demands with appropriate and rational solutions, without let groped by innovations designed more to stimulate the curiosity and the pleasure of the other as well as commercial interests, rather than a real solution to real needs.
locks or levers
plates can be defined locks plates (or Gorges) suits those locks whose keys operate the slabs, carved in the code which reproduces the map of the key itself, allow you to slide the bolt with the consequent opening of the lock .
The keys to the locks keys to map sheets are defined in the case of keys with a single wing and double bit keys in the case of keys with two wings.
Such keys are made up of a ring or handle, from the frame and wings, or maps, which are given the profile (or slots) that are encryption or key code. See fig. 1.
plates or gorges are practiced in the gorges of different heights, designed to slide inside them, a pin set perpendicular to the bolt, called mentonnet.
During the rotation of each key plate driven by a spring, fits into the corresponding milling (or tooth) practiced in the map key, rises to a height equal to the height of the respective tooth, aligning the groove in the mentonnet slide, allows it to bolt and then scroll through. See fig. 2
Since the number of plates and the different heights achievable, to determine the number of encryption or a combination of lock plates, it highlights the importance of having to increase the value of these parameters, so a lock with a greater number of plates, will be more secure than a lock with a smaller number (of course always with the same quality of execution). The same will apply to the heights assigned to the teeth of the key.
The quality of a lock plate, depends significantly on manufacturing tolerances, which in addition to determining the proper functioning characterize the degree of security against any attempts of unwanted openings.
E 'should also be provided for anti-handling devices and drill, and systems that attempts to circumvent carried out with key strengths. The key strength of
The key strength is a special tool, similar to a key map with no cuts, taking advantage of its strength, even without encryption, is able to overcome the resistance offered by the advance sheets of mentounet , thus causing the side slide of the bolt, along with the destruction of
lock. See Fig 3
The jump in flow
A major problem that characterizes the double bit lock is jumping delivery. This defect occurs in those cases where the rotation of the key is not sufficient to propel the latch of the treatment needed to pass the mentounet from the initial position, and then into the seat of a delivery date, the position of the next delivery.
Failure mantounet insertion into the seat may be determined in the presence of particular stress (eg resistance to the smooth running of the bar), the return of the bolt in the position occupied before turning the key.
Turning the key corresponding to a discharge, but without the corresponding drop of the bar, comes to match the carvings of the key (send map of sites in the odd see 1 and 3 flow), the position of the plates with encryption to send even (2nd and 4th discharge), causing the locking of the lock. See fig. 4
The main causes that can determine the jump of delivery are: *
excessively worn locks or keys,
* Locks with higher values \u200b\u200bof tolerance,
* Copies of duplicate keys ill,
* Excessive friction hindering the normal flow of the bolt.
E 'must point out that the company Fiam is the only one to have created and use it in their locks, patented a device to pull the bolt action to neutralize the disadvantage of the jump flow.
Burn: How to reduce a key to a whole bunch. The term burn
want to understand the hierarchical management openings.
This system, although not widespread because they are not known, offers the advantage of drastically reducing the number of keys to use, although they have a high number of ports to be opened with codes of opening different.
Wishing you an example, imagine a hypothetical Mr. Achille Pille, who lives in a house with a garden and holds a commercial.
Enjoying a burned applied to access both your home and to those of your company, may use only one key to open any door, differentiating among the many contributors, the possibilities of access according to their respective powers. See Figure 1
Commenting on the scheme in the figure, we can note that the master key (Paspartout) for the sole use of Mr. Achille Pille, his wife, Mrs. Pia Pille, will be entrusted with a key that allows access to every part of the house except the wall safe of her husband and the entire company. Their domestic workers, will be entrusted with a key that only allow the opening of the entrance gate to the garden, the front door and the cellar. Finally, the gardener, will have limited to, a key that allows access to the garden and tool shed.
the workplace, the sales manager that we will have a key that will allow access to sales offices, while the Managing Director will be given a key that will give you access to the administrative offices and archives. The employees in turn will have a key that will allow each of them restricted access to their office, in addition, for employees of the administration, to be able to access the archive.
What Mr. Pille Achilles is only a diagram showing examples of the various possibilities that a key recorder can offer.
be able to have one key that allows the opening of several locks, as well as practical elimination of bulky sets of keys, using key cylinder protected, is also offered the advantage of a more rational management of keys, which results in greater safety.
for advice - SECURITY MANAGER dr. Leonardo cell .. 335314926
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