ES2178526B1 - KEY FOR LOCK. - Google Patents

Abstract

Lock key comprising: a key head (1) incorporating an interactive programmable chip (3) and electric conductor loop (4) with fixed or modifiable electronic identification code in accordance with a sequentiality established by computer program; a key blade (2) insertable into the key channel (14) of a respective lock cylinder (11) attached to the key head (1) by an outer neck (5) to the lock cylinder (11), the key blade (2) has a cross-section in any way known per se and, at its rear part in front of the outer neck (5), a pair of opposite electrical terminals (6) interconnected with the interactive programmable chip (3) appears. the key head (1), incorporating at least one concavity (7) carved in reciprocity with the tip of a radial python (15) of the rotor (12) of the lock cylinder (11).

Description

Key for lock.

Field of the Invention

This invention relates to a key of lock that is versatile because it has a shovel type conventional for recording mechanical opening codes, but it can act independently as an electronic only key, and is capable of operating a lock without mechanical key traditional and equipped with a mechanical lock that is governed by electric-electronic means; as well as a combination of both.

Prior art

In the field of this invention there is a problem consisting of an incompatibility between the keys corresponding to conventional type locks (in which there is a combination of mechanical opening based on games Python-counterpoint between the rotor and the static housing of the lock cylinder) and the intended keys to maneuver only electronic locks, in which there are no classic python-contrapiton combination games, but an electronic code that acts on a lock Electromechanical rotor rotation. In such a way that when of the conventional mechanical locks of an establishment operated with the same key, must be replaced by modern only electronic locks equipped with older and better performance, the result is that two different ones have to be used keys

On the other hand, between the keys that incorporate electronic means of identification is known a guy who owns two opposite retractable buttons that are guided and mounted against two springs within the flat neck material of a key that is located outside the lock cylinder between the end of the key blade inserted in the rotor and the head of key, these retractable buttons contact paths independent semicirculars located in a tubular extension cylindrical rotor front. This solution implies, on the one hand, a considerable complication in the construction of the rotor, on the other On the other hand, the semicircular tracks are fully exposed to the weathering action; and on the other hand, mounting counter spring of retractable buttons requires spatial availability that limits its location to the edges of said outer flat neck, but not to the major faces of it.

Explanation of the invention and advantages

Facing this state of affairs the key now advocated includes: a key head incorporating a chip interactive programmable and an electrical conductor loop, whose chip interactive programmable has an electronic identification code that throughout the opening maneuver is fixed or modifiable according with a sequentiality or randomness established by a computer program, and whose electrical conductor loop is interconnected with said interactive programmable chip and extends internally following the contour of said key head; and one key blade inserted in the key channel of a respective lock cylinder and that is attached to said key head by an external neck to this lock cylinder, whose shovel of key presents a cross section of any form in itself known and, in its back and in front of said neck outside, a pair of opposite terminals appears on this key blade electrical that are interconnected with said programmable chip interactive key head, and whose key blade incorporates, at least one concavity that is carved in reciprocity with the tip of a radial python of the rotor of said lock cylinder (11) which is in contact with a respective counter counter mounted counter spring in the static housing of this lock cylinder, and said concavity is carved in a central longitudinal strip of said key blade in a manner compatible with any other fingerprints intended to determine a mechanical combination Conventional opening of the lock.

This new key can operate as a key only electronics in which the interactive programmable chip and loop electric conductor have the mission of communicating with the electronic lock cylinder for recognition of code that releases the rotating sentence of the rotor. In the invention any one of said opposite electrical terminals is susceptible coming into contact with a radial electrical contact of said rotor of the lock cylinder at a distance from the bottom of said key channel of this rotor that is equal to the one between said electrical terminal and the tip of the key blade. The majors benefits of this electronic only key are obtainable when said intercom between key and cylinder is not only established in the key entry position, but remain for all the rotary maneuver of it by means of a device that guarantee the maintenance of electrical communication; by example, a device in which said radial electrical contact is in permanent contact with an annular track, electrically conductive, which surrounds a section in solidarity internal of said rotor and that on its external face this annular track is in contact with an installed electric brush counter spring in said static cylinder housing of lock.

This new key can also operate as a classic key by engraving on its shovel the traces of conventional mechanical combination.

The ambivalence of the new key as only classical mechanical electronics allows its use to act only electronically with a single electronic cylinder and, at the same time, to operate other locks of the same user that have combination conventional mechanics Which allows the current supply of electronic keys like this to users who don't have cylinders yet electronic locks, but you can purchase them in the future and, meanwhile, they use it as a classic mechanical key; or to users who they have electronic cylinders that do not yet have all the benefits of a modern electronic key, but that can aspire in the future to prepared modern electronic cylinders For these new benefits.

The new arrangement of electrical terminals by front of the outer collar of the key is compatible with conventional external rotor configurations in which only radial housing should be practiced for said radial electrical contact In addition, this solution promotes arrangement behind the rotor front of a conductive annular track that will remain hidden and inaccessible from outside and protected from the weathering, which will act as a conductive medium between said contact radial electric and an electric brush connected to the electronic lock cylinder.

In the invention two variants of execution of the electrical terminals: in one of them, said terminals electrical are attached one on each side of a rigid core arranged next to the rear end of said key blade; on the other, said electrical terminals are installed at the end of elastic brackets that are anchored in a rigid core located in said outer collar of the key to a convenient distance from the rear end of said key blade. Any of these solutions is a very small space occupation that it makes possible its location both on the edges and on the faces older than a `` flat '' key shovel; what provides more alternative executions of keys according to the invention.

The device of concavities carved in the central strip of the key blade, to operate with respective Python games contrapitón in the classic style, constitutes a protection device against attempts at frontal violation of the lock cylinder by introducing objects into its channel key.

The constitution of this new key is it shows its full compatibility with all known types of forms in your key shovel, as well as with any known type of lock cylinder

These and other features advantages of the invention follows from the detailed exposure that is made to continuation in relation to the graphic representation that attached.

Drawings and references

To better understand the nature of the present invention, in the accompanying drawings we represent a preferred form of industrial realization, which is exemplary merely illustrative and not limiting.

Figure 1 shows a key according to the invention side view showing the inside of your key head (1) and a part of its key blade (2).

Figure 2 shows in longitudinal section a key according to the invention operatively inserted in a rotor (12) of a lock cylinder (11) and corresponding to a version of electrical terminals (6) not retractable.

Figure 3 is a partial view of Figure 2, but showing the version of floating electrical terminals and retractable

Figures 4 to 11 show individual executions key variants according to the invention.

Figures 12 to 19 show the respective key blade cross sections (2) corresponding to the Figures 4 to 11.

Figures 20 to 22 show different perspectives of variants of lock cylinders (11) operated with the key according to the invention.

In these figures the following are indicated references:

one.-

Head of key

two.-

Shovel key

3.-

Programmable chip interactive

4.-

Conductor loop electric

5.-

Outer collar key

6.-

Electrical terminals in key blade (2)

7.-

Concavities of key shovel (2)

8.-

Footprints of key blade combination (2)

9.-

Retractable Python in key shovel (2)

10.-

Drive spring retractable python (9)

eleven.-

Cylinder lock

12.-

Cylinder rotor (eleven)

13.-

Static housing cylinder (11)

14.-

Key channel in rotor (12)

fifteen.-

Radial python in rotor (12)

16.-

Contrapitón in static housing (13)

17.-

Contact radial electric rotor (12)

18.-

Impeller spring contact (17)

19.-

Ring track electrically conductive

twenty.-

Pythons mobiles

twenty-one.-

Brush electric in static housing (13)

22.-

Rigid core in key shovel (2)

2. 3.-

Corbels elastic

Exhibition of a preferred embodiment

In relation to the drawings and references above Listed, some variants are illustrated in the attached drawings preferred execution of a new key lock performance only electronic and / or classical mechanics that, as it is illustrated in figures 1 and 2, it comprises: a key head (1) incorporating an interactive programmable chip (3) and a conductive loop electric (4), whose interactive programmable chip (3) has a code electronic identifier that throughout the opening maneuver is fixed or modifiable according to a sequentiality or a randomness established by a computer program, and whose electric conductor loop (4) is interconnected with said chip interactive programmable (3) and extends internally following the contour of said key head (1); and a key shovel (2) insertable in the key channel (14) of a respective cylinder of lock (11) and which is attached to said key head (1) by an outer neck (5) to this lock cylinder (11), whose blade of key (2) has a cross section of any shape in yes known and, in its back and in front of said neck outside (5), a pair of opposites appears in this key blade (2) electrical terminals (6) that are interconnected with said chip programmable interactive (3) of the key head (1), and whose blade of key (2) incorporates at least one concavity (7) that is carved in reciprocity with the tip of a radial python (15) of the rotor (12) of said lock cylinder (11) that is in contact with a counter counter (16) mounted counter spring in the static housing (13) of this lock cylinder (11), and said concavity (7) is carved in a central longitudinal strip of said key blade (2) compatible with other possible ones fingerprints (8) intended to determine a mechanical combination Conventional opening of the lock.

As shown in Figure 2, any one of said opposite electrical terminals (6) are likely to enter contact with a radial electrical contact (17) of said rotor (12) of the lock cylinder (11) at a distance from the bottom of said key channel (14) of this rotor (12) which is equal to the one that exists between said electrical terminal (6) and the tip of the key blade (2), whose radial electrical contact (17) is in turn in contact permanent with an annular track (19), electrically conductive, which solidarity surrounds an internal section of said rotor (12) and that on its outer face this annular track (19) is in turn in contact with an electric brush (21) installed counter spring in said static housing (13) of the lock cylinder (11).

An execution is shown in figure 2 preferred in which said electrical terminals (6) are attached one on each side of a rigid core (22) arranged after the rear end of said key blade (2); this solution does not allow any retraction of the electrical terminals, so it will be used in combination with a radial electrical contact (17) mounted tilting on the rotor (12) against a drive spring (18), to ensure permanent contact between both elements.

An alternative execution to this is illustrated in figure 3, where said electrical terminals (6) are installed at the end of elastic brackets (23) that are anchored in a rigid core (22) located in said outer neck (5) of the key at a convenient distance from the rear end of said blade of key (2), in this solution the electrical terminals (6) are elastically retractable (so they have a convexity protruding), so that the radial electrical contact (17) does not requires said drive spring (18) to ensure permanence of the contact

The reduced spatial occupation of the terminals electrical (6) allows its indistinct location in the vertical plane containing the longitudinal axis of said key channel (14) of the rotor (12), relative to a horizontal key channel (14); or well, in the horizontal plane that contains the longitudinal axis of said key channel (14) of the rotor (12), relative to a channel of key (14) horizontal. As examples of both cases, observe Figures 4 to 11, and Figures 1 to 3 themselves. Consideration of One or the other case is a function of the `` flat '' blade wrench (figures 1 to 6) or `` toothed '' blade (figures 7 to 9), since in the first the key channel (14) is usually horizontal and in the Second is usually vertical. On the `` flat '' shovel keys (2) there are two minor longitudinal faces or edges, and two faces longitudinal lines in which the eventual carving of said fingerprints (8) of the conventional mechanical combination of lock opening (not shown). On the key blades `` jagged '' or `` singing '' (2) there is a longitudinal edge over the eventual carving of said traces (8) of the conventional mechanical combination of lock opening.

The invention is compatible with spade wrenches `` flat '' (figures 1 to 6 and 12 to 14), of `` toothed '' blade (figures 7 to 9 and 15 to 17), of cylindrical blade (figures 10 and 11, 18 and 19) and, in general, in other known ways of blade cross section of key (2).

Also, the invention is compatible with various copy security systems established in these various key blade shapes (2). Figures 5 and 13 show a `` flat '' key blade (2) incorporating mobile pythons (20) in oblique arrangement and freely movable in its axial direction; Figures 6 and 14 show a `` flat '' key blade (2) that incorporates two retractable pythons (9) mounted in mutual opposition and against two springs (10), one in each said song of this key blade (2); and in figures 9 and 17 a shovel is shown `` toothed '' key (2) which, similar to the preceding case, incorporates a retractable python (9) mounted against a spring (10) at the edge of this key blade (2) that is opposite to that of said possible traces (8) of the mechanical combination Conventional opening of the lock. There are many others known safety devices for the key blade which are Compatible with the new key.

For clarity in the `` flat '' key blades (2) represented the combination footprints (8) have been ignored conventional mechanics; which appear, however, in the `` jagged '' key blades (2), where the clarity of the drawing

The invention is also compatible with various known lock cylinders (11). In figures 20 to 22 it is show some simple type (only for access from the exterior), but they could also be double (for exterior access and interior).

Claims (12)

1. Key for lock, characterized in that it comprises a key head (1) incorporating an interactive programmable chip (3) and an electrical conductor loop (4), whose interactive programmable chip (3) has an electronic identification code that throughout the maneuver opening is fixed or modifiable according to a sequentiality or randomness established by a computer program, and whose electrical conductor loop (4) is interconnected with said interactive programmable chip (3) and extends internally following the contour of said key head (one); and a key blade (2) insertable in the key channel (14) of a respective lock cylinder (11) and which is attached to said key head (1) by an outer neck (5) to this lock cylinder (11), whose key blade (2) has a cross section of any shape known per se and, at its rear and in front of said outer neck (5), a pair of opposite electrical terminals (6) that are interconnected with said interactive programmable chip (3) of the key head (1), and, whose key blade (2) incorporates at least one concavity (7) that is carved in reciprocity with the tip of a radial python (15) of the rotor (12) of said lock cylinder (11) which is in contact with a respective counter-pin (16) mounted counter spring in the static housing (13) of this lock cylinder (11) ), and said concavity (7) is carved in a central longitudinal strip of said key blade (2) in compa Possible with other possible fingerprints (8) intended to determine a conventional mechanical combination of opening the lock. 2. Lock key, according to the preceding claim, characterized in that any one of said opposite electrical terminals (6) is capable of coming into contact with a radial electrical contact (17) of said rotor (12) of the lock cylinder ( 11) at a distance from the bottom of said key channel (14) of this rotor (12) which is equal to that between said electrical terminal (6) and the tip of the key blade (2), whose electrical contact radial (17) is in permanent contact with an electrically conductive annular track (19), which integrally surrounds an internal section of said rotor (12) and that on its external face this annular track (19) is in turn in contact with an electric brush (21) installed counter spring in said static housing (13) of the lock cylinder (11). 3. Lock key, according to the preceding claims, characterized in that said electrical terminals (6) are attached one on each side of a rigid core (22) arranged next to the rear end of said key blade (2). 4. Lock key, according to the first and second claims, characterized in that said electrical terminals (6) are installed at the end of elastic brackets (23) that are anchored in a rigid core (22) located in said outer neck (5) of the key at a convenient distance from the rear end of said key blade (2). 5. Key for lock, according to the preceding claims, characterized in that said electrical terminals (6) are in the vertical plane containing the longitudinal axis of said key channel (14) of the rotor (12), relative to a channel of key (14) horizontal. 6. Lock key, according to the first to fourth claims, characterized in that said electrical terminals (6) are in the horizontal plane containing the longitudinal axis of said key channel (14) of the rotor (12), in relation to a horizontal key channel (14). 7. Lock key, according to claim one, characterized in that said key blade (2) is of the type having the so-called `` flat '' keys, where there are two minor longitudinal faces or edges, and two major longitudinal faces in which eventual carving of said fingerprints (8) of the conventional mechanical combination of opening of the lock occurs. 8. Key for lock, according to the first claim, characterized in that said key blade (2) is of the type that have the keys called `` serrated '' or `` edge '', in which there is a longitudinal edge on which the eventual carving of said fingerprints (8) of the conventional mechanical combination of opening of the lock occurs. 9. Lock key, according to the first claim, characterized in that said key blade (2) is cylindrical in cross-section. 10. Lock key, according to claim 7, characterized in that said key blade (2) incorporates mobile pythons (20) in oblique arrangement and freely movable in their axial direction. 11. Lock key, according to claim 7, characterized in that said key blade (2) incorporates two retractable pythons (9) mounted in mutual opposition and against two springs (10), one in each said edge of this key shovel (2). 12. Lock key, according to claim 8, characterized in that said key blade (2) incorporates a retractable python (9) mounted against a spring (10) in the edge of this key blade (2) which it is opposite to said eventual fingerprints (8) of the conventional mechanical combination of the lock opening.