ITUB20155762A1 - SAFETY DEVICE APPLICABLE TO PLATE LOCKS - Google Patents

Description

SAFETY DEVICE APPLICABLE TO LLR LOCKS A

PLATES

DESCRIPTION

The present patent relates to safety locks and in particular concerns a safety device applicable to plate locks. Locks with double bitted keys are known which use plates, also called gorges, to allow or prevent the translation of the bolts. Plate locks, also called gorges locks, are locks whose keys operate plates, which have recesses or grooves of the depth corresponding to the recesses or grooves carved in one or two opposite wings of the key itself, and allow the bolt to slide with the consequent opening of the lock.

In particular, the plate locks have a vertical support carriage internally to which various parallel horizontal bolts are fixed. Current plate locks are also equipped with an upper control rod and a lower control rod, connected to the bolt carriage.

During assembly of the lock in the door, said control rods are joined to suitable vertical rods for locking the door to the floor and to the upper fixed frame.

The sliding of the bolt carriage involves the translation of said control rods towards the outside or towards the inside of the lock, translating in turn the vertical locking rods by inserting or disconnecting their ends in the seats in the floor and in the upper fixed frame.

The keys of the plate locks are defined bit keys, if they have only one wing with notches or grooves, and double-bit keys, if they have two wings with notches or grooves.

These keys are composed of a ring or handle, the shaft and the wings or maps, where millings or notches are made that constitute the coding or code of the key.

In the plates or gorges, all kept pushed in one direction by relative springs, vertical grooves of different heights are made, crossed by a horizontal groove.

The vertical grooves, notches or millings of the plates are complementary to the grooves or millings of the wings of the key, while the horizontal groove of said plates allows the sliding of a pin fixed perpendicularly to the bolt, called mentonnet.

During the rotation of the key, each plate is lifted from the corresponding groove or tooth of the key bit, of the measure corresponding to the single groove or single tooth, aligning the horizontal groove of the plate with the mentonnet allowing it to slide in said horizontal groove and consequently to allow the sliding of the bolts and the consequent translation of the upper and lower control rods.

Plate locks, although still considered improperly safe, have various possibilities of opening by unauthorized persons. One of the systems used by criminals is to carefully observe the owner's legal key and reproduce an identical key with the same grooves or grooves. This key, completely identical to the original key, allows you to open the lock in a few moments without leaving traces and picking or damaging any part of the lock or door.

Another system used involves the use of specific tools, such as for example palpating irons and tensioning irons. These tensor and feeler irons are inserted into the hole for the key of the lock and skilfully maneuvered in order to move and tension the various plates or gorges until the bolt is completely translated.

Another system used involves the use of a properly constructed tool. A metal tool or probe of suitable size is introduced through the hole for the key of the lock on which a small amount of impression wax is placed on the upper face. Said tool or probe is pressed against the teeth on the left and on the right of the various plates or gorges, obtaining information on the depth of the various grooves and allowing the original legal key to be reproduced.

In order to obviate all the aforesaid drawbacks, a new safety device has been studied and implemented which can be applied to plate locks.

One of the purposes of the new safety device applicable to plate locks is to prevent strangers from accessing the key hole.

Another purpose of the new safety device is to prevent the translation of the bolts by strangers.

These and other direct and complementary objects are achieved by the new safety device applicable to plate locks comprising, in its main parts, a control device, at least one electromechanical actuation device, a closing and locking slider.

The electromechanical actuation device and the closing slider are adapted to be applied outside an existing plate lock. The closing and locking slider is made up of a resistant metal plate or sheet, able to be arranged parallel and adhering to one of the two major walls of the plate lock and able to translate or rotate on a plane parallel to said major walls of the lock. itself.

The closing slider of the new safety device applicable to plate locks is applied and slides on the surface of the plate lock facing the rest of the house, house, building.

In particular, said closing and locking slider has at least one wing or portion, suitable for obstructing or not obstructing the hole for the key of the adjacent major wall, possibly with at least one end or appendix able to prevent or allow the sliding of at least one of the upper and lower control rods.

The closing slider thus constituted is able to translate parallel and substantially in adherence to one of the two major external surfaces of said lock, and in particular to translate in a direction orthogonal to the direction of translation of the bolts.

In particular, said closing slider translates and / or rotates from an open position, in which its wing or portion does not obstruct the hole for the key and in which its end or appendix does not hinder the translation of any control rod, to a closed position, in which its wing or portion completely occludes the key hole and in which its end or appendage engages and locks at least one control rod in the extended position or in the closed position.

Each operating electromechanism has elements for hooking and / or connecting with said closing and locking slider and is able to translate or rotate said slider from the closed position to the open position.

It is possible to provide that said operating electromechanism includes or is replaced by a lever, handle or other gripping element outside the lock and the door, arranged on the side facing the inside of the house, house, building, so as to allow manual operation. of the new locking device and relative sliders from the inside.

The control device can consist of a remote control, a numeric keypad, a transponder detector or other device capable of being operated by the owner either directly, such as for example the numeric keypad or the remote control, or in indirect way, such as the transponder detector.

When the lock is open, the new safety device is in the open position, i.e. with the closing slider moved to a position which does not obstruct the key hole and which does not prevent the translation of any command rod.

After the lock has been closed by means of the proprietary key, the user activates the operating electromechanism so as to translate said closing slider into the relative closing position.

The closing slider in its closed position achieves a double purpose and effect;

prevents translation in the opening direction of the control rods and consequently also of the bolt carriage, both with the proprietary key and with any other means or tool;

prevents access to the plates or gorges through the hole for the key, preventing the bad guys from operating on the gorges to detect their coding grooves or move with tools called plates or gorges to allow the passage of the mentonnet.

The characteristics of the new safety device applicable to plate locks will be better clarified by the following description with reference to the drawing tables, attached by way of non-limiting example. Figures 1 and la show respectively a side view and a front view of a first example of embodiment of the new safety device applicable to plate locks (S), comprising a closing slider (C) and an electric drive mechanism ( TO).

The closing slider (C) is substantially constituted by a flat plate, arranged in adherence to the major surface (SI) of the lock (S) arranged towards the outside of the house, house, building.

Said closing slider (C), in this example, is translated by said actuating electromechanism (A) parallel to said major surface (SI) of the lock (S) and parallel to the movement of the bolts (X).

Said closing slider (C) has a portion (CI) suitable for obstructing or not obstructing the hole (Sf) for the key, and two ends (C2) suitable for preventing or allowing the sliding of the upper control rods (Y) and inferior. Said portion (Cl) of said slider (C) is adapted to be arranged, as a consequence of the translation of said slider (C), in correspondence with the hole (Sf) of the key, completely obstructing it as shown in figure 2, or laterally to said hole (Sf) for the key, allowing the passage of the key itself, as shown in figure 1.

Above and below said plate of said slider (C) there are the two locking ends (C2) of the control rods (Y). When the closing slider (C) is translated, said ends (C2) prevent, as shown in figure 2, or allow, as shown in figure 1, the translation in the opening direction of the control rods (Y) and consequently also of the latch carriage (X).

The closing slider plate (C) also includes upper and lower elements or appendages (C3) that wrap the upper and lower sides of the lock (S), both to allow a better translation of the closure slider (C) on the lock. (S), and to prevent the closing slider (C) from moving away from the surface (SI) of the lock (S) on which it slides.

Figure 3 illustrates a second embodiment of the new safety device applicable to plate locks in which the closing slider (C) translates vertically, parallel to the lateral surface (SI) of the lock (S) and perpendicular to the movement of the bolts. (X). These are the schematic modalities sufficient for the skilled person to realize the invention, consequently, in concrete application there may be variations without prejudice to the substance of the innovative concept.

Therefore, with reference to the preceding description and to the attached table, the following claims are expressed.

Claims (8)

CLAIMS 1. Safety device applicable to plate locks characterized by the fact of comprising a translating or rotating closing cursor (C) able to occlude or not occlude the hole for the key (Sf) and able to prevent or allow the return movement of at least one control rod (Y), and where said closing slider (C) is arranged parallel and adherent to the external surface of the major wall (SI) of the lock (S) facing the rest of the house, apartment, building. 2. Safety device applicable to plate locks, as per claim 1, characterized in that said closing slider (C) comprises at least one wing or portion (Cl) able to be arranged, with the translation or rotation of the slider ( C) itself, in a position such as to occlude the key hole (Sf) of the adjacent wall (SI) of the lock (S) or in a position completely away from said key hole (Sf) of the adjacent wall (SI) of the lock (S). 3. Safety device applicable to plate locks, as per claim 1, characterized in that said closing slider (C) comprises at least one end or appendix (C2) able to be arranged, with the translation or rotation of the slider ( C) itself, in a position such as to prevent the return movement of at least one control rod (Y) or in a completely remote position such as to allow the retraction or extension movement of both control rods (Y). 4. Safety device applicable to plate locks, as per the preceding claims, characterized in that it comprises a knob, lever or other element that can be operated by the user arranged inside the house, apartment or building suitable for activating said closing slider (C). 5. Safety device applicable to plate locks, as per claims 1, 2, 3, characterized by the fact that it comprises actuating electromechanisms (A), housed in any case inside the door, suitable for translating said closing slider (C) from the open position to the closed position and vice versa. 6. Safety device applicable to plate locks, as per claim 5, characterized in that it comprises a radio-receiving device, coupled with the relative radio-transmitting device, able to control said electro-actuating mechanisms (A). 7. Safety device applicable to plate locks, as per claim 5, characterized in that it comprises an alphanumeric keyboard device adapted to control said electro-actuating mechanisms (A). 8. Safety device applicable to plate locks, as per claim 5, characterized by the fact of comprising a transponder detector and decoder device, coupled with the relative transponder or transponders, adapted to control said operating electromechanisms (A).