WO2017174837A1

WO2017174837A1 - Safe box with double cylindrical closure

Info

Publication number: WO2017174837A1
Application number: PCT/ES2017/000039
Authority: WO
Inventors: Domingo Panea Medina
Original assignee: FERNÁNDEZ DELGADO, Luis; SABÁN NAVARRO, Begoña
Priority date: 2016-04-07
Filing date: 2017-04-07
Publication date: 2017-10-12
Also published as: ES2641248B1; EP3441552A4; ES2641248A1; EP3441552A1

Abstract

A safe box with a double cylindrical closure is composed of a parallelepipedal case that can be embedded into a wall and has a central door in the front case wall, wherein a safe box is provided with a double cylindrical closure, the double cylindrical closure consists of two cylinders, an outer cylinder and an inner cylinder concentrically arranged in a vertical position, capable of rotating and having respective slits which, when they are aligned, allow in the unlocking mode access to the contents of the inner cylinder, while in a locking mode the slit in the outer cylinder cannot be accessed through the door of the case, such that when the case door is opened, only the frame of the case and part of the smooth surface of the outer cylinder are visible, the actuation and the coordination of the rotation mechanisms of the outer and inner cylinder being controlled by an outer electronic control motherboard.

Description

DOUBLE CYLINDER LOCK SAFETY BOX

OBJECT OF THE INVENTION

The present invention relates to a safety box based on a double cylinder closure comprising two cylinders located concentrically with respect to each other with the minimum possible clearance, arranged vertically and having practiced recesses on its surface, sufficient to be able to deposit goods inside, which once faced, allow access to the content, this set being installed within a preferably recessed housing.

This new system dramatically improves security against safes or known flows, since it advantageously dispenses with the conventional closure of an armored door that contains the opening, safety and control mechanisms, and which usually has highly complex devices provided with Technological advances aimed at preventing potential unauthorized access to the contents of the safe, which also has similarly shielded surface coverings to hinder unauthorized access to the contents of said safe.

The access door installed in the conventional safes, is strongly linked to the frame of the latter by means of hinges in accordance with the solidity of the assembly, constituting both elements, door and box, a unique body in the closed position, which hinders a potential forced attempt of separation of both elements, when, for example, weak points susceptible to attack are violated with the use of hand tools such as levers, power tools for machining, or by heat input through autogenous or thermal lances.

Therefore, the door is the most important part of conventional safes, not only because it comprises the opening mechanism of the system, but also because it is the element through which it is directly accessed inside once opened by its owner, or, forced by violent means as in real cases, said door being the most accessible and weakest point for violation, because it has a flat surface, as well as hinges, which facilitates its machining by tools of various Indole.

In the face of this conventional configuration of a hinged door box, whose basic principle has not changed since the first safes of this type designed in the 18th century, the present invention differs, by having instead of a swinging door, two cylinders arranged concentrically with respect to each other, rotating the first one, the external one, on its axis, mounted on a single bearing located in the lower and inner central part of said housing, while a second cylinder, the internal one, rotates to the be concentric on the same axis, and is mounted on a single bearing centrally located inside the outer cylinder.

The quadrangular housing can be embedded, and is provided with an access door that gives way to the true high security system object of the present invention. The security level of said door may be lower than that of conventional boxes, since the door is not the part that supports the entire security system, as is the case in known safe boxes, on whose doors all the weight of the custody of the goods contained therein, so it is easier to find the best way to violate the security of such conventional boxes by unauthorized persons.

The housing envelops the assembly and comprises the necessary controls, security controls and circuits protected by means of sufficient security systems to avoid potential sabotage that causes an eventual attempt to open the system by electronic means, in addition to the physical system consisting of a first cylinder or external, arranged vertically and with the possibility of rotating movements on its own axis in order to change the position of its recess with respect to the door of the housing and a second cylinder, internal, concentric to the first and located inside it, both with the same axis of rotation and with a minimum clearance between them, as well as in relation to the housing that encompasses them, and which can rotate with respect to the external on its own axis, having its own rotation mechanism, just like the external cylinder, whose movements are controlled and previously programmed from the electronic control board.

The principle on which the safety of this new safe is based is the combination of a new group of elements and solutions unknown so far, based on the opposition that presents a cylinder to be rotated when it is blocked by several independent systems of anchoring, since in the hypothetical case that it was possible to face the recess of the external cylinder with the door of the housing using force, blocking the internal cylinder with respect to the external cylinder would prevent access, because when counting the cylinder internal with its own anchoring system similar to that of the external cylinder, the recess of the internal cylinder is not accessible, since it is misaligned in relation to that of the external cylinder, so that the recess of the external cylinder will face the face of the internal cylinder, due to said locking anchor of both cylinders independently.

In the event that the violator of the safe did not opt for the attempt to force the rotation of the first cylinder, or external cylinder, but instead opted for the machining of a hole to destroy the resistance offered by it, once it violate both active and passive security systems comprising the access door installed in the housing, the offender will find it with the curved and smooth surface of the internal cylinder which, since there is a minimum clearance between both cylinders, does not offer support to violate its turn by means of a lever, which again does not give way to the goods guarded in the box, but offers the unexpected opposition of this new safety barrier, that of the internal cylinder, identical to the first, that of the external cylinder . The difference in height between the two cylinders is such that, between them, two independent movement, safety and control systems for each cylinder are advantageously housed: gearmotor, transmission and gears, as well as electronic locking and control mechanisms, and that, from independently, they rotate in one way or another.

The access doors installed in conventional safes could be implemented in this system for exclusive models, and especially this double cylinder model could be installed, inside these safes with the appropriate adaptations, to add the advantages of both concepts, in such a way that a hybrid of special qualities would be generated, which could be specially approved to guard for example samples with potential danger such as biological, chemical products such as radioactive materials, pollutants in general, military or of extreme historical-artistic value, or of such nature, which requires a special disposition and double security with a crucial surprise effect for a potential attacker.

For those custody needs of polluting elements, potentially dangerous, or of special biological value, their housings, would be conveniently lined and insulated with the necessary materials that prevent any type of radiation or spillage abroad, guaranteeing by means of the appropriate homologation, the necessary sealing so that these materials or products of extreme value or danger, generate the slightest external or internal contamination from outside.

Likewise, the housing comprises, in a different embodiment, one or several air intakes for forced ventilation or environmental extraction, or coming from an external humidity, temperature or other environmental factors control system, including relative pressure or vacuum, to ensure that this new device, through sufficient clearances between both cylinders and their recesses, can deliver, where appropriate, the treated air necessary to standardize its quality to the goods or special and particularly vulnerable products that require specific conditions for their preservation thus avoiding their expiration, deterioration, or internal or external contamination The movement necessary for the alignment of the recesses of the two cylinders that allows access to the contents of the box safety is generated by a gearmotor that, through its internal gears, transfers its demultiplicated force to an endless screw integral to said gearmotor, which then moves to a cogwheel arranged in the center of the cylinder and which, in turn, transmits the movement to three or more cogwheels arranged equidistant.

Said sprockets cross the outer cylinder through slots, transmitting the movement to the static outer crown that is part of the housing, generating an opposite force that causes the cylinder assembly to rotate

In a hypothetical unauthorized attempt to rotate the cylinders, the transmission of the forced movement that is generated in the external cylinder would pass at the same time to two differentiated sets that would offer great opposition to the rotation by force.

On the one hand, a system composed of three or more cams arranged in an equidistant manner and actuated by their respective electromagnets, which engage in the crown of the carcass through holes in the surface of the external cylinder at the height of said crown, they would keep the outer cylinder locked without offering the slightest chance of forced rotation.

On the other hand, if they were able to deactivate each of the mechanisms that drive the electromagnets, the de-multiplication generated by the gears of the geared motor would act. If that force is finally overcome, it would meet the opposition of the electric brake that is part of said gearmotor. In another alternative embodiment, two cams for each gearwheel transmitting to the crown of the housing, arranged on each side of said gearwheels, would in turn gear both said crown and each of those by an extension of the grooves, that cause a double effect: Retention of the external cylinder with respect to the housing, as well as irreversible stranding of the sprockets with respect to it.

The industrial application of the present invention is found in the sector of the safe deposit boxes or safes industry, and in particular in concentric vertical double cylinder safes.

BACKGROUND OF THE INVENTION

Although document ES2013148A6 refers to a hydraulic or pneumatic closure for security doors, comprising arranged on a frame-door assembly, one or more closing cylinders movable by pneumatic or hydraulic means, such that electrically through a compressor or pump, the necessary pressure is obtained to keep the closure in position, providing the electrical connection a lock switch, and being the valve that discharges the circuit, a valve equipped with a lock closure, it is actually something very different from the concentric cylinders of the requested invention, which, in addition to not being hydraulic, open and close by matching or not their recesses by mechanical means. Document ES2053930T3 describes an electromagnetically controlled safety box lock, with an encodable release control and a handle for actuating the latch, whose housing houses a recess in the front face of the latch and a locking mechanism, while in a hole in the rear of the housing is mounted an electromagnet, whose armature sits on a locking lever provided with locking boss, which is arranged rotatably on a lever of command, with a turning pin moved by the latch with the locking boss and a pin acting by the latch acting on the joystick, which contains a formation of the locking boss in such a way that the turning pin collides against the locking projection, both in the introduction and in the separation of the latch, in the event that the electromagnet is not energized, that above the latch a control slide is mounted coupled thereto, to which the pin is fixed Turn and the spike.

In the compared invention the turning pin is revindicated to be able to close the safety box while in the proposal said box closes with the concentric cylinder system.

ES0267048U proposes a safe, which has a hollow cylindrical door, with bases of adequate thickness and resistance, which has, in the vicinity of its periphery, uniformly distributed, with four through holes, on which four numbered dials are applied. they activate eccentric paths, equipped with a triangular projection on their periphery, capable of fitting into the corresponding triangular notches for this purpose existing in the door frame, said projections being able to appear outside the peripheral surface of the cylinder that forms the door thanks to the presence, in that, of the corresponding windows, achieving, remove the door, only when the four dials allow the correct position of triangular protruding coughs and, in turn, when rotating on itself, the position of the door allows the coincidence of cited projections projecting with the notches of the frame, this constituting a certain angular position the door, the fifth secret, not modrficable

ES2208790T3 describes an electromagnetically controlled lock, especially for safes, with a manually activated latch and an electromagnet that locks or releases the latch through control and locking elements, which a hand-operated turnstile drags into the control slide outside the latch, which moves through a control cam a transverse slide, which is coupled through the electromagnet with the blocking slide, in whose passage channel the latch pin fits.

The compared invention is about a magnetically controlled lock while the proposed invention is about a locking system for safety boxes consisting of concentric cylinders.

Conclusions: As can be seen from the research carried out, none of the documents found solves the problems raised as the proposed invention does.

DESCRIPTION OF THE INVENTION

The double cylindrical safety box object of the present invention is constituted from a recessed housing with central door in its front wall, which retains the parallelepipedic exterior shape of conventional safes, not providing such robust protection against penetration, because inside the said housing is the device object of this invention, consisting of two cylinders, one external and one internal, arranged concentrically with respect to each other and in an upright position, with the ability to rotate and, They have practiced recesses, so that aligning them conveniently makes access to the contents of the inner cylinder possible. From the door of the box there is no access, in blocking mode, to the recess of the external cylinder to prevent it from being used as a support for tools that cause a forced rotation of the external cylinder, such that when the door is opened Only the frame's door and part of the smooth surface of the outer cylinder are shown in sight.

The drive mechanism is constituted by an electronic control and command plate, gearmotor, electric brake and auger, as well as a set of sprockets that transmit the movement to each of the cylinders, thus achieving the programmed rotation. A toothed crown anchored to the housing that surrounds the outer cylinder in its upper part, is engaged by several planetary sprockets, located inside the outer cylinder that, arranged in the same plane, equidistant from each other and being at the same height as the crown gear outside, enable said gear through horizontal grooves made in the surface of the cylinder.

Said geared motor drives an integral screw, which transmits movement to a central gearwheel, which transmits movement at the same time to said planetary gearwheels that, meshing through the grooves of the external cylinder with the crown that surrounds it externally occurs the rotating movement of said external cylinder.

All the aforementioned assembly is anchored directly on the upper inner surface of said outer cylinder.

The mechanism that makes the blockage possible is constituted by the gearboxing generated by the internal gears of the geared motor, the opposition to being rotated from the electric brake that forms part of the motor, as well as, a system constituted by several double-coil electromagnets integral to the same base, where the drive mechanism of which a semi-gear is part is supported, which, through some grooves or holes that pass through the external cylinder, as well as the cogwheels that produce the rotation, impact on the outer toothed crown when it is in closing mode, blocking the system and preventing any possibility of rotation. Said electromagnets can be replaced or complemented by other locking systems especially wedge-shaped, in an independent electrical circuit to reinforce the one defined above, an example of this being an electromagnet that releases the spring from a shaft that ends in a semi-gear of a only tooth that acts as a ratchet when engaging in the outer crown or housing. The transmission and blocking system of the internal cylinder is based on the same principle of operation as the external cylinder, and is located on the upper external surface of the internal cylinder, anchored thereto, leaving the movement mechanism of said cylinder above it. external. This system consists of a geared motor that transmits the movement to an endless screw, which in turn connects with a cogwheel attached to the inner wall of the external cylinder, thus achieving a relative movement of the internal cylinder with respect to the external one. The support of both concentric cylinders is achieved by means of two single bearings that surround the axis of the aforementioned cylinders, thereby ensuring their centering and minimum clearance between cylinders, a first axial needle bearing between the bases of the two cylinders being housed, thus allowing the relative rotation of both, while the second bearing is external, resting directly on the housing and inside, this being the one that has to support the weight of both cylinders, so it can not only be axial, but which is a spherical roller bearing that ensures the stability of the system and allows free rotation of the cylinders.

To allow access to the assets held in the safe, the two recesses of both cylinders must coincide with the door of the housing. Once the safety box is closed, an automatic program is activated to misalign the recesses of both cylinders with respect to the door of the housing as well as in relation to both, controlled so that its resting position is random to each use, likewise in this resting position, the electric brakes of both gearmotors and the latches or locking cams that directly affect the two crowns that control the movement of both cylinders are automatically activated.

The electronic control systems are programmed in the motherboard that is divided into two parts, one of them housed in the interior part of the housing and the other in the cabin where the movement and locking mechanisms are located in such a way that the system cannot be accessed and thus avoid manipulations tending to violate its security system. Said motherboard has opening, closing and maneuvering controls by means of electronic components designed for this purpose, as well as an ammeter circuit that can detect out-of-range consumption, so it would be a complementary control for unauthorized movements or unpredictable locks that they would avoid compression accidents, which would trigger the usual alarms to which conventional safety boxes are connected.

To avoid a possible electrical sabotage that allows the unauthorized opening of the box, the installation that feeds the control board contains a safety system that prevents the actuation of the motors and unlocking the latches independently, since said installation is duly protected and encoded by digital means already present in the latest generation of conventional safe deposit boxes. The rotation of both cylinders is controlled by inductive speed sensors, which through a hole made in individual cylinders, count the turns, speed and direction of rotation to determine its operation and attempt of forced rotation or errors in it, complemented by a system of ammeter sensors that would control the consumption of the motors that would determine in parallel and in a combined way both factors that, together with a high security alarm system conventionally associated with the safes, would activate the active and passive protection alarms. BRIEF DESCRIPTION OF THE DRAWINGS

For a better understanding of the description, some drawings representing a preferred embodiment of the present invention are attached to this specification. Figure 1: Conventional perspective view of the housing with the door closed

Figure 2: Conventional perspective view of the housing with the door open through which the recess of the outer cylinder aligned with that of the inner cylinder can be seen

Figure 3: Conventional perspective view of the housing with the door open through which it can be seen that the recess of the external cylinder is misaligned with the door of the housing (closed box).

Figure 4: Conventional perspective view from above of the external cylinder with gears, gearmotor, worm, central gearwheel, planetary sprockets, recesses.

Figure 5: Conventional perspective view of the structure

where you can see the crown attached to the housing and which allows the movement of the external cylinder.

Figure 6: Conventional perspective view of the external cylinder where the grooves through which the gear wheels that engage with the crown of the housing pass

Figure 7: Plan view of the system comprising the movement of the external cylinder defined above.

Figure 8: Sectional view of the internal cylinder movement system, housed in the upper external part of the internal cylinder and whose gear wheel engages in the crown integral to the external cylinder.

Figure 9: Conventional perspective view of the bearing it supports, allows the support, centering and rotation of the internal cylinder.

Figure 10: Conventional perspective view of the bearing it supports, allows the support, centering and rotation of the external cylinder and its assembly.

Figure 11: View of the housing section, both bearings and both cylinders.

Figure 12: Conventional perspective view of the ratchet in locked position

Figure 13: Conventional perspective view of the released ratchet The numerical references that appear in the figures correspond to the following constituent elements of the invention:

1. Housing

2. Housing door

3. Housing window

4. Toothed crown of the housing

5. External electronic motherboard

6. Opening and turning control systems, and alarm

7. External cylinder

8. External cylinder recess

9. Internal crown of the outer cylinder

10. External cylinder bearing

11. External cylinder movement system:

12. Gear support anchored on the upper inner part of the outer cylinder.

13. External cylinder gearmotor support

14. External cylinder geared motor

15. External cylinder geared motor brake

16. External cylinder auger support

17. External cylinder auger screw

18. Central sprocket of the outer cylinder

19. Planetary sprockets of the outer cylinder

20. Cylinder recesses for planetary sprockets

21. Internal Cylinder

22. Internal cylinder recess

23. Internal cylinder bearing

24. Movement system of the internal code

25. Gear support anchored on the upper outer part of the inner cylinder

26. Internal cylinder gearmotor support

27. Internal cylinder gearmotor

28. Electrobrake of the internal cylinder gearmotor 29. Internal cylinder auger support

30. Internal cylinder auger screw

31. Internal cylinder sprocket

32. Electromagnet

33. Dock

34. Axis

35. Ratchet

DESCRIPTION OF A PREFERRED EMBODIMENT

A preferred embodiment of the present invention can be based on a casing (1) recessed with a central door (2) in its front wall, which has the parallelepiped exterior shape of conventional safes, said casing (1) not providing such a robust protection against penetration, because inside said casing (1) is where the cylindrical double lock safety box object of this invention really is, consisting of two cylinders (7 and 21), one external (7) and an internal one (21), arranged concentrically with respect to each other and in an upright position, with the capacity of rotating movements and, having cut-off paths (8 and 22), so that aligning them conveniently makes it possible to access the contents of the internal cylinder (21). From the door (2) of the housing (1) there is no access, in blocking mode, to the recess of the external cylinder (8) to prevent it from being used as support for tools that cause a forced rotation of said cylinder external (7), so that when the door (2) of the housing (1) is opened, only the frame of said housing (1) and part of the smooth surface of the external cylinder (7) are shown.

An external electronic control board (5) controls and controls the actuation and coordination of the rotation mechanisms of the external (7) and internal (21) cylinders.

The external cylinder (7) is constituted by a toothed crown (4) anchored to the housing (1) that surrounds said external cylinder (7) in its part upper, being meshed by several planetary cogwheels (19), located inside said external cylinder (7) which, arranged in the same plane, equidistant from each other and being at the same height as the aforementioned cogwheel (4) of the external cylinder (7), enabling the gear through horizontal grooves made in the surface of said external cylinder (7).

Said geared motor (14) of the external cylinder (7) drives a solidarity screw (17), which transmits movement to a central gearwheel (18), which transmits movement at the same time to said planetary gearwheels (19) which , by rotating through the horizontal grooves of the external cylinder (7) with the crown (4) that surrounds it externally, the rotating movement of said external cylinder (7) occurs. All the aforementioned assembly is anchored directly on the upper inner surface of said outer cylinder (7),

The mechanism that makes it possible to block is based on the gear reduction generated by the internal gears of the geared motor (14), as well as on the opposition of the electric brake (15) of said geared motor (14) to be turned, and on a system constituted by at least a double coil electric coil (15) integral with the base, where the drive mechanism of which a semi-gear is part is supported, which, through grooves that pass through the external cylinder (7) as well as the sprockets (19) ) that produce the turn, affect the outer toothed crown (18) when it is in closing mode, blocking the system and preventing any possibility of turning. In a different embodiment said electric brakes (15) can be replaced or complemented by other locking systems especially in the form of a cuff, in an independent electrical circuit that reinforces the one described above, such as an electromagnet (32) that releases the spring (33 ) of a shaft (34) that ends in a semi-gear of a single tooth that acts as a ratchet (35) when engaging in the toothed crown of the housing (4). The transmission and locking system of the inner cylinder (21) is based on the same principle of operation as the outer cylinder (7), and is located on the upper outer surface of the inner cylinder (21), anchored to it, under the mechanism of movement of said external cylinder (7). This system consists of a gearmotor (27) of the internal cylinder (21) that transmits the movement to a worm screw (30) of the internal cylinder (21), which in turn connects with a cogwheel (31) integral to the internal wall of the external cylinder (7), thus achieving a relative movement of the internal cylinder (21) with respect to the external cylinder (7).

The support of both concentric cylinders (7 and 21) is achieved by means of two single bearings (10 and 23) that surround the axis of the aforementioned cylinders (7 and 21), thus ensuring their centering and minimum clearance between cylinders, being a first axial needle bearing (10) housed between the bases of the two cylinders (7 and 21), thus allowing the relative rotation of both, while the second bearing (23) is external, resting directly on the housing and on its inside, this being the one that has to support the weight of both cylinders (7 and 21), so it can not only be axial, but is a spherical roller bearing that ensures the stability of the system and allows free rotation of the cylinders (7 and 21).

To allow access to the assets held in the safe, the two recesses (8 and 20) of both cylinders (7 and 21) must coincide with the door of the housing (1). Once the safety box is closed, an automatic program (6) is activated to misalign the recesses (8 and 20) of both cylinders (7 and 21) with respect to the housing door (1) as well as in relation to both recesses (8 and 20), controlled so that their resting position is random for each use, likewise in this resting position the electric brakes (15 and 28) of both gearmotors (14 and 27) are automatically activated. and the latches or locking cams that directly affect the two crowns (9 and 31) that control the movement of both cylinders (7 and 21). The electronic control systems (6) are programmed in the base plate (5) which is divided into two parts, one of them housed inside the housing (1) and the other in the cabin where the mechanisms are located of movement and blocking in such a way that the system cannot be accessed and thus avoid manipulations tending to violate the security system.

Said base plate (5) has open, close and maneuver controls by means of electronic components for this purpose, as well as with an ammeter circuit that can detect out-of-range consumption, making it a complementary control for unauthorized movements or Unpredictable locks that prevent compression accidents, triggering the usual alarms to which conventional safety boxes are connected. To avoid possible electrical sabotage that allows unauthorized opening of the box, the installation that feeds the control base plate (5) contains a safety system that prevents the operation of the gearmotors (14 and 27) and unlocking the latches. independently, since said installation is duly protected and encoded by digital means already present in conventional safe deposit boxes.

The rotation of both cylinders (7 and 21) is controlled by inductive speed sensors, which through a hole made in individual cylinders (7 and 21), count the turns, speed and direction of rotation to determine their operation and attempt of forced rotation or errors in it, complemented by a system of ammeter sensors that control the consumption of the motors that determine in parallel and in combination both factors that, together with a high security alarm system conventionally associated with the safes , activate active and passive protection alarms.

Claims

1.- Safety box with double cylindrical closure, consisting of a housing (1) recessed with a central door (2) in its front wall, in a parallelepipedic manner, characterized in that inside the said housing (1) there is a box of double cylindrical safety, consisting of two cylinders (7 and 21), one external (7) and one internal (21), arranged concentrically with respect to each other and in an upright position, with the capacity of rotating movements, which have practiced paths recesses (8 and 22), which once aligned make it possible to unlock the contents of the internal cylinder (21), while in blocking mode there is no access from the door (2) of the housing (1) to the recess of the external cylinder (8), so that when the door (2) of the housing (1) is opened, only the frame of said housing (1) and part of the smooth surface of the external cylinder is shown (7), the drive and coordination being controlled With the rotation mechanisms of the external (7) and internal (21) cylinders by an external electronic motherboard (5) for control and command.

2, - Double cylindrical safety box, according to claim 1, characterized in that the external cylinder (7) is constituted by a toothed crown (4) anchored to the housing (1) surrounding said external cylinder (7) in its part upper, being meshed by several planetary gearwheels (19), located inside said external cylinder (7) which, arranged in the same plane, equidistant from each other and being at the same height as the said gearwheel (4) of the external cylinder (7), enable the gear through horizontal grooves made in the surface of said external cylinder (7).

3. Safety box with double cylindrical closure, according to claims 1 and 2, characterized in that a gearmotor (14) of the external cylinder (7) drives an integral screw (17), which transmits movement to a central gearwheel (18 ), which transmits movement at the same time planetary gearwheels (19) which, meshing through the horizontal grooves of the external cylinder (7) with the crown (4) that surrounds it externally, produce the rotating movement of said external cylinder (7), all this assembly being anchored directly on the upper internal surface of said external cylinder (7).

4. Safety box with double cylindrical closure, according to claims 1 to 3, characterized in that the locking mechanism is based on the gear reduction generated by the internal gears of the gearmotor (14), as well as the opposition of the electric brake (15) of said gearmotor (14) to be rotated, and in a system consisting of at least one double-coil electromagnet (32) integral with the base, where the drive mechanism of which a semi-gear part is supported is supported, which, through grooves that pass through the external cylinder (7) as well as the sprockets (19) that produce the rotation, impact the outer gear (18) when it is in closing mode, blocking the system and preventing any possibility of rotation, said electromagnets (32) may be in different embodiments substituted or complemented by other wedge locking systems, in an independent electrical circuit that reinforces the one described above, as for example an electromagnet (32) that releases the spring (33) from a shaft (34) that ends in a single-tooth semi-gear that acts as a ratchet (35) when engaging in the toothed crown of the housing (4).

5. Safety box with double cylindrical closure, according to claims 1 to 4, characterized in that the transmission and locking system of the internal cylinder (21) is based on the same principle of operation of the external cylinder (7), being located on the surface upper external of the internal cylinder (21), anchored thereto, below the movement mechanism of said external cylinder (7), said system consisting of a gearmotor (27) of the internal cylinder (21) that transmits movement to an auger (30 ) of the internal cylinder (21), which in turn connects with a cogwheel (31) integral to the wall internal of the external cylinder (7), thus achieving a relative movement of the internal cylinder (21) with respect to the external cylinder (7).

6. Safety box with double cylindrical closure, according to claims 1 to 5, characterized in that the support of both concentric cylinders (7 and 21) is achieved by means of two bearings (10 and 23) that surround the axis of said cylinders (7 and 21), a first axial needle bearing (10) being housed between the bases of the two cylinders (7 and 21), thus allowing the relative rotation of both, while the second bearing (23) is external, resting directly on the housing, this being the one that has to support the weight of both cylinders (7 and 21), this second bearing (23) being spherical rollers.

7 - Double cylindrical safety box, according to claims 1 to 6, characterized in that said base plate (5) has controls for opening, closing and maneuvering by electronic components, as well as an ammeter circuit capable of detecting consumption outside of range, and trigger conventional alarms, comprising the installation that feeds the control base plate (5) a safety system that prevents the actuation of the gearmotors (14 and 27) and unlocks the latches independently.

8.- Operation of the previously claimed cylindrical safety box, characterized in that

a) to allow access to the goods guarded in the safe, the two recesses (8 and 20) of both cylinders (7 and 21) must coincide with the door of the housing (1)

b) Once the safety box is closed, an automatic program (6) is activated to misalign the recesses (8 and 20) of both cylinders (7 and 21) with respect to the housing door ( 1), as well as in relation to both recesses (8 and 20), controlled so that their resting position is random for each use, also activating in this resting position automatically the referred electroprakes (15 and 28) of both gearmotors (14 and 27) and latches or locking cams that directly affect the two crowns (9 and 31) that block the movement of both cylinders (7 and 21)

c) The electronic control systems (6) are programmed in the base plate (5) which is divided into two parts, one of them housed in the inner part of the housing (1) and the other in the cabin where they are located the movement and blocking mechanisms in such a way that the system cannot be accessed, thus avoiding manipulations tending to violate the security system.

d) The rotation of both cylinders (7 and 21) is controlled by inductive speed sensors, which through a hole made in two cylinders (7 and 21), count the turns, speed and direction of rotation to determine their operation and attempt of forced rotation or errors in it, complemented by a system of ammeter sensors that control the consumption of the motors that determine both factors in parallel and in combination.