ES2331394B1 - "LOCK KEY WITH STATIC INSERTS". - Google Patents

Abstract

Lock key with static inserts, from those with a flat shovel (1) and of which the means for set the opening key are formed on their faces older, characterized in that the flat blade (1), in each of its major faces, it has at least one static insert (2) that it comprises a base (2a) in which a prominence (2b) is erected that occupies a spatial position determined by its coordinates in the length and width of the flat blade (1), as well as its height, whose prominence (2b) is likely to operate in conjunction with a active python (4) combination, located in a corresponding lock cylinder (3), and whose static insert (2) is located in a reciprocal recess (1a) of the flat blade (1), where this static insert (2) is fixed.

Description

Key lock with static inserts.

Field of the Invention

This invention concerns a key for a lock cylinder which incorporates means designed to prevent Your unauthorized copy. This type of key is usually called "irreproducible", in the sense that it incorporates devices They make copying difficult.

Prior art

Various keys are known in this field irreproducible that can be cataloged in two classes.

A class is that of those designated as "multiestry" keys, due to the multiple function assigned to the stretch marks or longitudinal channels that the key blade has in reciprocity with the existing channel in the cylinder for introduction of it; in conventional keys stretch marks they don't fulfill an active function to set the opening key, they simply serve to accept or not the introduction of the key, accepting all those keys that have the same profile of stretch mark or a profile inscribed therein and allowing the rotation of opening only to those who also have the carving of fingerprints suitable for a certain combination of python games lock cylinder assets; instead, the keys multiestria have stretch marks with special shapes machined by milling that give the blade a greater thickness thus allowing incorporate elements that are also actively involved in the opening combination This class of multi-key keys has vulnerable points: one is the possibility that there are more keys thin that, without assuming a falsification of the form of multiestry, can enter the cylinder and with a suitable carving obtained by fraudulent copy, being able to open this cylinder; another is that copy machines can be found in the market of stretch marks that are in the hands of small industrial copiers of keys

Another class of keys is that of the shovels incorporate mobile elements capable of working in conjunction with active pythons housed in the cylinder. This type of solution gives place to complex and high price mechanisms that can be acceptable for important installations and for trainings, but that are excessive for the home and others minor facilities.

Explanation of the invention and advantages

Faced with this state of affairs, this invention presents a key lock with static inserts that has a flat shovel of which the means to establish the key to opening are formed on their major faces, whose flat shovel, in at least one of said major faces has at least one insert static insert comprising a base on which a prominence that occupies a spatial position determined by its coordinates in the length and width of the flat blade, as well as by its height, whose prominence is likely to operate in conjunction with an active combination python located in a corresponding lock cylinder, and whose static insert is located in a reciprocal recess of the flat blade, where this insert insert Static is fixed by riveting, welding or adhesive.

This solution allows a lot of combinations for making different keys, depending of how many insert inserts are fixed on the shovel, from what positions are located the same throughout this shovel, where is the prominence inside the base on which erect and what is the height of each prominence so individually and in conjunction with others existing on the shovel, when there would be more than one.

On the one hand, this great variety of combinations possible hinder the profitable copy by the counterfeiters, since the vision of an installed cylinder, even holding it in hand, it does not allow to identify the system model key-insert necessary to forge the key; Y since the insert insert acts on an internal active python of the cylinder, so, in fake, this insert insert has to match exactly in position and shape with that of the key original valid. For greater difficulty, mounting a second insert insert longer than the first, and with its corresponding set of active python in the cylinder, prevents, still copying the visible shape of the cylinder channel for the insertion of the key, the key could be falsified, since said second insert insert will block the opening rotation of the cylinder and  it is not possible to know the quantity and position of insert inserts mounted on the key just by seeing the shape of said key channel in the cylinder

On the other hand, the arrangement of the inserts hairpieces allow a conventional flat blade wrench to be become a multi-type type without having to go to the machining of special stria shapes that, by their nature, they are of production in short series that suppose a considerable cost of fixed assets and hinder storage and Logistics. While the proposed solution achieves a functionality equivalent to that of multiestry and allowing, in addition that the final configuration of the key is given in the time of issue to the client, which confers great production flexibility with warehouse reduction and costs of immobilized

On the other hand, this solution based on inserts Variable selective location hairpieces is much cheaper and simple that the arrangement of moving elements in the shovel of the key and cannot be performed by the machining machines of stretch marks (re-striators) existing in the market.

The invention comprises a wide range of execution variants; regarding the static insert insert are to note that: the height of the static insert is such that protrudes from the plane of the corresponding major face of the flat shovel; or else, the height of the static insert is such that does not protrude from the plane of the corresponding face greater than the flat blade; or, the height of the insert insert static is such that it falls below the plane of the corresponding major face of the flat blade.

Regarding the base of the insert insert, there are several executions in which: the base of the static insert is not of revolution, which makes it easy to play with its rotary position for combinatorial purposes, as well as to determine a precise operating position; Or, the base of the static insert is
revolution.

As for the location of prominence erected at the base it is contemplated that: said prominence of the insert static hairpiece is offset from the base; O well, said prominence of the static insert is centered Regarding the base.

Regarding the location of the insert insert static as a whole, the invention contemplates the alternatives following: that the static insert is in the part corrugated flat blade or, outside this corrugated part, in the thicker material area of the flat blade.

Drawings and references

To better understand the nature of the invention, an embodiment is shown in the attached drawings industrial that is merely illustrative and not limitative.

Figure 1 is a perspective view of a key according to the invention incorporating an enlarged detail of a static insert (2) that corresponds to an insert (2) circled in a section of a lock cylinder (3) that has inserted the key concerned which in turn incorporates a detail enlarged static insert (2) circled. In this figure the base (2a) of the static insert (2) is not revolution and the prominence (2b) of it is off center.

Figure 2 shows the key in perspective of Figure 1, incorporating an enlarged detail of another way of execution of the static insert (2), where the base (2a) is of revolution and, in it, prominence (2b) is centered.

Figure 3 shows the key of Figure 1, in orthogonal projection and front view of a major face of your shovel flat (1).

Figure 4 is an enlargement of the section IV-IV indicated in figure 3.

Figure 5 is an enlargement of the section V-V indicated in figure 3.

In these figures the following are indicated references:

one.-

Flat shovel

1st.-

Flat blade recess (1)

2.-

Static insert

2nd.-

Static insert insert base (2)

2b.-

Prominence of static insert (2)

3.-

Flat blade lock cylinder (1)

4.-

Active python in lock cylinder

Exhibition of a preferred embodiment

Regarding the drawings and references above listed, an execution mode is illustrated in the attached drawings preferred object of the invention, referred to a key of lock with static inserts that, as shown in figure 1, has a flat shovel (1) of which the means to establish the Opening key are formed on their major faces. In this Figure 1 illustrates the essence of the invention, consisting in that the flat blade (1), in at least one of said major faces, has, at least one static insert (2) comprising a base (2a) in which a prominence (2b) occupying a position is erected spatial determined by its coordinates in the length and width of the flat shovel (1), as well as its height, whose prominence (2b) is liable to operate in conjunction with an active python (4) of combination located in a corresponding lock cylinder (3), and whose static insert (2) is located in a reciprocal recess (1a) of the flat blade (1), where this insert static insert (2) is fixed by riveting, welding or adhesive.

Among the execution variants of this invention figure 1, together with figure 4, highlights one in which the height of the static insert (2) is such that it protrudes with respect to the plane of the corresponding major face of the blade flat (1), as well as the base (2a) of the static insert (2) is not of revolution and that the prominence (2b) of the insert Static hairpiece (2) is off center with respect to the base (2a).

Another variant of execution is that highlighted in Figures 2 and 5, where said base (2a) of the static insert (2) is also of revolution, but the prominence (2b) of the static insert (2) is centered with respect to the
base (2nd).

Obviously, by extension, other executions possible (not represented) and combinable with each other contemplate a option in which the height of the static insert (2) is such that does not protrude from the plane of the corresponding face greater than the flat blade (1); as well as the height of the insert static hairpiece (2) is such that it falls below the plane of the corresponding major face of the flat blade (1).

Location options are also contemplated in which said static insert (2) is in the part corrugated flat blade (1) or, outside this corrugated part, in the thickest material area of the flat blade (1); in the Accompanying figures have opted for the first of these indicated options.

Claims (7)

1. Lock key with static inserts, of which it has a flat blade (1) and of which the means for establishing the opening key are formed on its larger faces, characterized in that the flat blade (1), in each of its major faces, it has, at least, a static insert (2) comprising a base (2a) in which a prominence (2b) is erected that occupies a spatial position determined by its coordinates in the length and width of the flat blade (1), as well as its height, whose prominence (2b) is capable of operating in conjunction with an active combination python (4), located in a corresponding lock cylinder (3), and whose static insert ( 2) is located in a reciprocal recess (1a) of the flat blade (1), where this static insert (2) is fixed. 2. Lock key with static inserts, according to the first claim, characterized in that the height of the static insert (2) is such that it protrudes from the plane of the corresponding major face of the flat blade (1). 3. Lock key with static inserts, according to the preceding claims, characterized in that the base (2a) of the static insert (2) is not revolution. 4. Lock key with static inserts, according to the first and second claims, characterized in that the base (2a) of the static insert (2) is of revolution. 5. Lock key with static inserts, according to the first claim, characterized in that the prominence (2b) of the insert (2) is offset from the base (2a). 6. Lock key with static inserts, according to the first claim, characterized in that said prominence (2b) of the static insert (2) is centered with respect to the base (2a). 7. Lock key with static inserts, according to the first claim, characterized in that the height of the static insert (2) is such that it does not protrude from the plane of the corresponding major face of the flat blade (1).