ES2259731T3 - BLOCK DEVICE FOR SECURITY LOCK. - Google Patents

Abstract

The invention concerns a device for locking and unlocking at will an actuating movement, for use in a safety lock, said device comprising at least a key (10) bearing authenticating encoding projections (12) in succession along the longitudinal axis (1) of the key and extending perpendicular to said axis, a mechanism for sensing the encoding projections (20), a mechanism for authenticating the encoding projections (30), and a rotor, the sensing mechanism (20) including a set of fittings (21) adopting respective positions controlled by the successive projections (12) of the key (10). The invention is characterized in that each projection (12) of the key (10) brought opposite a fitting (21) imposes by itself to the corresponding fitting (21) a specific angular direction in a plane transverse to the longitudinal axis of the key (10).The invention is applicable to a safety lock.

Description

Lock device for lock security.

The invention relates generally to the field of Locksmith and locking mechanisms.

More specifically, the invention relates to a selective locking and unlocking device of a movement of drive, applicable to a security lock, including said device at least one elongated key along an axis and which includes authenticity coding reliefs that are they happen along the longitudinal axis of the key and that extend perpendicular to said axis, a palpation mechanism of the authenticity coding reliefs, in which the key is selectively introduced by a translation movement along its axis, a mechanism of authentication of the reliefs of authenticity coding, and a rotor in which they are housed the palpation and authentication mechanisms, including the palpation mechanism a set of trimmings to which they are respectively associated the reliefs of the key by means of a reciprocal correspondence established after the introduction of the key, adopting these fittings, during the introduction of the key, respective positions controlled by the reliefs successive of the key and collectively defining a configuration dynamic of the palpation mechanism that is fixed in a static test configuration once the key is inserted, providing the authentication mechanism a configuration of reference at most after the introduction of the key, and making the device a comparison between the configuration of test and reference configuration, adopting a state of lock or unlock depending on whether the comparison reveals, or not, a correspondence between the compared settings, ensuring each key relief placed in front of a garrison, in the dynamic configuration of the palpation mechanism, a guide in rotation of said fitting around the longitudinal axis of the key, both clockwise and counterclockwise, thus imposing each relief on its own on the garrison corresponding a certain angular orientation in a plane transverse to the longitudinal axis of the key in the configuration of palpation mechanism test.

Devices of this type are known from the prior art, such as the patent document published with the number CH87515. One such device includes a key whose front part includes reliefs in the form of planes They have different orientations. The garnishes carry complementary planes, which come into contact with the planes of the key when it is introduced into the rotor, by the effect of a elastic return force or not swinging the lining around a longitudinal axis. The orientation of the plane of the key located in front of the plane of the fitting determines the amplitude of the rotation of the garnish.

The trimmings each have on one side Outside a longitudinal groove. When the orientation of the key planes and complementary drawings of the side dishes is in accordance, that is when the coding of the key corresponds to that of the fittings, all slots They are aligned and form a continuous throat.

A longitudinal locking bar can then sneak in the throat, thus unlocking the device.

The test configuration on that device is the configuration adopted by the slots included in the fittings. The reference configuration is the shape of the bar longitudinal. The comparison is made by turning the key: if the fittings have adopted the test configuration in which all the slots are aligned, the rotation movement is not blocked through the bar. If the configuration is different, the movement of rotation is blocked.

This device is complex, since each fitting is associated with an elastic return means. Also, already He is well known to thieves, who have had time to adapt its tools and methods to this type of protection.

In this context, the present invention has to alleviate the difficulties indicated above, proposing a simple device that works according to a technique new and that is especially difficult to force.

For this purpose, the device of the invention, on the other hand according to the generic definition that makes the same the previous preamble is essentially characterized by those specific in the characterizing part of claim 1.

In the dynamic configuration of the mechanism of palpation, each relief of the key driven in front of a garrison also ensures a guided translation of said fitting along at least one first transverse axis contained in the transverse plane and following both one and the other of the two opposing directions aligned on said first axis transversal, thus imposing each relief by itself to the corresponding fitting a particular translation position along said first transverse axis in the test configuration of the palpation mechanism

Advantageously, the authentication mechanism may include a plurality of authentication elements to that the fittings are associated respectively by means of a permanent reciprocal correspondence, adopting each element of authentication in the transverse plane and according to the first axis transverse, a translation position determined by the position of translation of the corresponding garrison and, in relation to longitudinal axis of the key, a position of linked rotation by a function determined to the translation position of said authentication element, thus adopting the elements of authentication, during key entry, positions respective that collectively define a dynamic configuration of the authentication mechanism depending on the configuration dynamics of the palpation mechanism and fixing once Inserted the key in the reference configuration.

Preferably, each fitting can be formed by a ring pierced by a profiled central hole in which at least one relief of the key, said fitting offering an external surface that it has at least a first cylindrical longitudinal section and a second longitudinal section partly converted into no cylindrical by means of an axial rib, the element of authentication corresponding to that garrison may include at least one first toothed crown pierced by a hole authentication that covers at least the right projections of the first and second longitudinal section of the lining corresponding and in which it is introduced without freedom of translation and with free rotation the first section of the garrison corresponding in the dynamic configuration of the mechanism of palpation, the first crown gear can be mounted mobile in translation in an oblong rotor cavity delimited by a first and a second elongated edge along the first transverse axis, and the first toothed crown can engage with a zipper arranged on the first edge of the oblong cavity to adopt, around the longitudinal axis, an angular position of rotation linked by a first linear function to its translational position in The oblong cavity

For example, each authentication item it can include a second toothed crown pierced by a hole authentication that covers at least the right projections of the first and second longitudinal section of the lining corresponding and in which it is introduced without freedom of translation and with free rotation the first section of the garrison corresponding in the dynamic configuration of the mechanism of palpation, this second crown can be mounted mobile in translation in the same oblong rotor cavity as the first crown gear, and the second crown gear can engage with a zipper arranged on the second edge of the oblong cavity to adopt, around the longitudinal axis, an angular position of rotation attached to its translational position in the oblong cavity by a second linear function, which varies in the opposite direction to The first linear function.

Advantageously, the comparison between the test configuration and reference configuration can be carried out by a movement of the key, according to its longitudinal axis, beyond the introduction movement of the key that leads to the test and reference settings, adopting the device its unlock state when each garrison can be inserted in the authentication hole of each toothed crown of the corresponding authentication element to said garrison, and adopting its blocking state at least when the axial rib of the second longitudinal section of by at least one fitting bumps against an edge of the hole of authentication of at least one toothed crown of the element of authentication corresponding to said fitting.

Preferably, at least one garnish it can carry at least one relief of axial deception in its second section, the axial length of said deception being larger than the axial length of the axial ribs that the lining carries, the respective authentication holes of the first and second crown of the authentication element corresponding to the lining may each include a plurality of notches of axial section corresponding to the axial section of the deception, being the number of notches greater than the number of deceptions that the garrison, and deception can be introduced in a notch by axial translation of the lining while the device is in its locked state.

For example, the central hole of each lining may have cross sections whose size varies longitudinally, decreasing said size from one end longitudinal towards a middle plane of the lining, and increasing from symmetrical shape from the middle plane to the longitudinal end opposite.

Advantageously, the cross sections of the center hole of each lining may have shapes polygonal or lobed.

Preferably, each fitting can include at least three axial ribs, each toothed crown can include between twenty-seven and fifty-four teeth, and each Zipper can include three to six teeth.

For example, the device may contain by At least two side dishes.

Advantageously, the key can include a part previous with coding reliefs, presenting this part anterior cross sections in the form of envelopes that are deduct from each other by translation along a first axis transverse and by rotation around the longitudinal axis of the key.

Other features and advantages of the invention will appear clearly in the description that is made to then, with reference to the attached figures, in the which:

- Figure 1 shows a perspective view of an example of a device according to the invention, with starting a part of the rotor, not having represented the key for clarity,

- Figure 2 shows a side view according to the arrow II of figure 1, the rotor not having been represented and the key having been arranged parallel to the fittings,

- Figure 3 shows a perspective view of a toothed crown and a zipper of figure 1,

- Figure 4 shows a perspective view of two notched crowns and two stacked zippers, meeting the device of figure 1 in locked position,

- Figure 5 shows a top view of the elements of figure 4, the device of the figure 1 in unlocked position,

- Figure 6 shows a view from above identical to figure 4, a fitting having been introduced in the crowns,

- Figure 7 shows an identical view to the figure 5, having inserted a garnish in the crowns,

- Figure 8 shows a perspective view corresponding to figure 7,

- Figure 9 shows a perspective view equivalent to figure 8, having experienced the garrison a axial translation,

- Figure 10 shows a perspective view of a fitting of the device of figure 1, and

- Figure 11 shows a perspective view of an oblong cavity of the device of figure 1.

The selective locking and unlocking device of a drive movement includes, in a known manner, by at least one elongated key 10 along a longitudinal axis 1 and which it carries, in a previous part 11, coding reliefs of authenticity 12, as can be seen in figure 2. That part previous 11 ends by a head 13.

Said reliefs 12 follow one another along the axis longitudinal 1 of the key 10 and extend perpendicularly to said axis.

The device also includes a mechanism for palpation 20 of the coding reliefs 12, in which selectively insert the key 10 by a movement of translation according to its axis 1, an authentication mechanism 30 of the coding reliefs 12, and a rotor 40 in which the palpation and authentication mechanisms 20 and 30.

The palpation mechanism 20 includes a set of trimmings 21 to which the reliefs 12 of the key 10 by reciprocal correspondence established after the introduction of the key 10. The fittings 21 and the reliefs 12 are in identical number.

These fittings 21 adopt, during the key insertion movement 10, temporary positions respective controlled by the successive reliefs 12 of the key 10 and that collectively define a dynamic configuration of the palpation mechanism 20.

During the introduction of the key, the garrisons 21 are associated temporarily with different 12 reliefs of the key according to several successive correspondences. This dynamic configuration changes as key 10 is introduces deeper into the palpation mechanism 20.

This dynamic configuration is set to a static test configuration once fully entered the key.

Authentication mechanism 30 provides a static reference configuration at most after the key introduction.

The device makes a comparison between the test configuration and reference configuration, and adopts a locked or unlocked state of the drive movement depending on whether the comparison reveals, or not, a total correspondence between the compared settings.

According to the invention, in the dynamic configuration of the palpation mechanism 20, each relief 12 of the key 10 located in front of a garrison 21 ensures a guided rotation of said fitting around the longitudinal axis 1 of the key, both clockwise and counterclockwise.

Each relief 12 thus imposes its own fitting 21 corresponding an angular orientation determined in a plane transverse to the longitudinal axis 1 of the key 10 in the test configuration of the palpation mechanism 20.

In the dynamic configuration of the mechanism of palpation 20, each relief 12 of the key placed in front of a garrison 21 also ensures a guide in translation of said fitting 21 along at least one first transverse axis 2 contained in the transverse plane.

This translation is oriented according to one or the other of two opposing directions aligned on said first axis transverse 2.

Each relief 12 thus imposes its own corresponding fitting 21 a particular translation position  along said first transverse axis 2 in the test configuration of the palpation mechanism 20.

The authentication mechanism 30 includes a plurality of authentication elements 31 to which fittings 21 are respectively associated by a reciprocal correspondence

The number of authentication items 31 is therefore identical to the number of fittings 21.

Each authentication element 31 adopts, in the transverse plane and following the first transverse axis 2, a translation position determined by the translation position of the corresponding fitting 21 and, in relation to the axis longitudinal 1 of the key 10, a united rotation position by a function determined to the translation position of said authentication element 31.

Authentication elements 31 thus adopt, during the introduction of the key 10, respective positions that collectively define a dynamic configuration of the mechanism of authentication 30 dependent on the dynamic configuration of the palpation mechanism 20 and that is fixed, once the key, in the reference configuration.

As shown in figure 10, each trim 21 is formed by a substantially cylindrical ring pierced through a profiled central hole 22, into which selectively at least one relief 12 of the key.

The fitting 21 offers an external surface 23 presenting at least a first longitudinal section cylindrical 231 and a second longitudinal section 232 converted into part in non-cylindrical by at least one axial rib 24.

The first section 231 and the cylindrical part of the second section 232 have the same diameter and substantially the Same longitudinal length.

Fittings 21 typically carry three ribs 24 distributed regularly along the periphery  of the second longitudinal section 232.

Said ribs 24 come in one piece with the Garrison. Each rib is delimited by a radial surface 241 parallel to the outer surface 23, two longitudinal edges 242 parallel to each other, and two transverse edges 243 parallel each other noticeably in ring sectors.

Each authentication item 31 includes by at least a first and second thin 32 and 33 crown identical illustrated in figures 3 to 5. Each crown 32, 33 it has an outer edge 321, 331 that carries teeth 322, 332 noticeably radial. Said crowns 32, 33 are also traversed each by an authentication hole 323, 333 that covers at least the right projections of the first and second longitudinal section 231, 232 of the corresponding fitting 21, as shown in figures 6 to 9.

Said authentication hole thus presents the shape of a disk from which an outer edge carries three cuts 324, 334 in the form of axial ribs 24, distributed regularly on its periphery.

In the dynamic configuration of the mechanism of palpation 20, the first section 231 of the fitting is introduced 21 corresponding to the authentication element 31 without freedom of translation and with free rotation in the first and second crown 32 and 33, as shown for example in Figure 8.

The first and second crown 32 and 33 are concentric and are stuck against each other.

The rotor 40 has a general form of axle cylinder coaxial to the longitudinal axis of the key 10, and carries Reference 1 like this. Said rotor 40 includes, as shown in figure 1, a transverse anterior plate 47, cavities oblong 41 transverse in the same number as the number of fittings 21, and a transverse back plate 48.

The anterior plate 47, with a general disk shape center 471, is crossed by an introduction hole 472 of the key 10. Said hole 472 includes at least one part round located in the center of the anterior plate, serving said round rotating guide bearing part of the key 10.

The back plate 48 presents, on one side inside, a hollow relief not shown in the figures, of form corresponding to that of head 13 of the key 10. Said head 13 is inserted into the hollow relief when the key 10 is completely inserted into rotor 40.

The cavities 41, illustrated in Figure 11, they are all identical and elongated along the first transverse axis 2. Its cross sections form approximately center ellipses 411 and large axis along the first transverse axis 2.

The cross sections of said cavities 41 are symmetrical in relation to the first transverse axis 2, and symmetrical in relation to a transverse axis perpendicular to the first cross axis 2.

Two oblong cavities 41 neighbors are separated by a transverse veil 46, which has an opening oblong 461.

Said oblong openings 461 have two opposite elongated edges 463 each including a part right central 464 parallel to the first transverse axis 2, and two curved edges joining elongated edges 463.

Said openings 461 are symmetrical in relation to to the first transverse axis 2, and symmetrical in relation to an axis transverse perpendicular to the first transverse axis 2, and present a center 462.

The size of the openings 461 is smaller than the size of the cross sections of the cavities 41.

The center 471 of the anterior plate 47, the centers 411 of the cross sections of the cavities 41, the centers 462 of the openings 461 of the veils 46 and the relief in hollow of the back plate 48 are all aligned along an axis longitudinal.

Each oblong cavity 41 is associated in a way permanent to a garrison 21 and an authentication element 31.

Each oblong cavity 41 is delimited by a first and a second elongated and opposite edge 42 and 43, which carry each one in its center a longitudinal fixing rib, respectively 421 and 431.

A first zipper 44, illustrated in the Figure 3, is arranged in each oblong cavity 41. It is presented in shape of a thin metal piece, of a thickness close to the thickness of the first and second crown, and includes a straight edge 441 of the that two opposite ends are joined by a concave edge 442

The straight edge 441 carries four teeth 443 in its center The concave edge 442 has a hollow 444 in its center in a complementary way to the cross section of the rib of fixing 421.

The first zipper 44 is arranged in the oblong cavity 41, in a transverse plane, introducing the fixing rib 421 in the recess 444 such that the rack 44 is connected in translation along the first axis transverse 2. The teeth 443 are then rotated in one direction perpendicular to the first transverse axis 2.

The first toothed crown 32 of the element of authentication 31 corresponding to cavity 41 is mounted mobile in translation along the first transverse axis 2 in the cavity 41. Engrana with zipper 44, as shown in figure 3, such that the first crown 32 adopts an angular position of rotation around the longitudinal axis 1 joined by a first linear function to its translational position in the oblong cavity 41.

In this first linear function it is a function of number of zipper teeth 44 and the number of teeth of the crown 32.

Toothed crown 32 is guided in translation to along the edge 42 by the rack 44, and along the edge 43 for one piece in the same way as zipper 44 but devoid of teeth, attached to the rib 431. Said piece no It is represented in Figures 1 and 11.

As shown in figure 1, the cavity oblong 41 also contains a second zipper 45, identical to the first zipper 44, arranged so that the rib of fixing 431 is inserted into a recess 454 that carries an edge concave 452 of the zipper 45.

The second crown 33 of the element of authentication 31 corresponding to cavity 41 is mounted mobile in translation along the first transverse axis 2 in the cavity oblong 41, and gear with the second rack 45, as shown in figure 4.

Like crown 32, crown 33 is guided in translation along the edge 43 by the zipper 45, and along the edge 42 by the piece 46, visible in figure 11, devoid of teeth but similar to the zipper 44.

Thus, the second zipper 45 and the second crown 33, on the one hand, and the first zipper 44 and the first crown 32, on the other hand, are symmetrically arranged in the oblong cavity 41 in relation to the first transverse axis 2. Zippers 44 and 45 are arranged face to face in the oblong cavity 41.

The second crown 33 adopts an angular position of rotation around the longitudinal axis, joined by a second linear function to its position of translation in the cavity oblong 41.

This second linear function is a function of number of teeth of the zipper 45 and the number of teeth of the crown 33. Varies in the opposite direction to the first function linear.

The size of the oblong opening 461 of the veil 46 it is smaller, according to at least one direction, than the diameter of the toothed crowns 32 and 33, said crowns being accordingly prisoners of the oblong cavity 41.

The longitudinal thickness of the oblong cavity 41 corresponds approximately to the total thickness of the first and second crown 32 and 33 glued against each other, such that said crowns are guided in their transverse displacements by veils 46.

The longitudinal length of each of the first and second section 231 and 232 of each fitting 21 is also substantially equal to the total thickness of the first and second crown 32 and 33 glued against each other.

Fittings 21 are aligned one behind of others in the rotor 40, according to a longitudinal direction, as shown in figures 1 and 2. The first section 231 of each fitting 21 is on the side of the back plate 48, and the second Section 232 is on the side of the front plate.

During the key insertion phase 10 in the rotor 40, the first section 231 of each fitting 21 is enter authentication holes 323 and 333 of the corresponding first and second crown 32 and 33, while the second section 232 is inserted into oblong opening 461 of the veil 46 bordering the corresponding cavity 41 on the side of the plate previous 47.

When the key 10 is inserted in the mechanism of palpation 20, the fittings 21 move according to the first transverse axis 2, and move in rotation around the axis longitudinal 1, as shown by the arrows in figure 6.

When the key is fully inserted, each fitting 21 is pierced by the key and has experienced by therefore a displacement along the first transverse axis 2 corresponding to the coding relief 12 of the part of the key that goes through it.

Each garrison 21 drags the first and second corresponding crown 32 and 33 in translation along the first cross axis 2, which roll on rack 44 and 45 and they therefore experience a rotation in the transverse plane, to the time they remain concentric.

The first and second crown 32 and 33 experience rotations in opposite directions.

Authentication holes 323 and 333 They also experience rotations in opposite directions. These rotations drive the authentication holes 323 and 333 and its cuts 324 and 334 to respective angular positions determined. These angular positions may or may not overlap. perfectly, that is to say drive the three cuts 324 and the three 334 cuts to overlap or not.

The garrison 21 experiences in turn a rotation by the influence of the corresponding relief 12 of the key 10, which drives the three axial ribs 24 to a default angular position.

The test configuration corresponds to both to the set of angular positions that are going to adopt the ribs 24 of the trimmings 21, due to the influence of angular displacements imposed by the reliefs of key coding 12.

The reference configuration corresponds to set of angular positions to be taken by the 324 cuts and 334 of the authentication elements 31, due to the influence of displacements along the first transverse axis 2, taxes by the coding reliefs of the key 12.

The comparison between the test configuration and the reference configuration is made by a movement of translation of the key 10, according to its longitudinal axis, beyond of the key insertion movement that leads to the test and reference settings.

The key 10 includes a bulge 14 in a end of its anterior part 11, said bulge being positioned 14 inside the round part of the introduction hole of the key 472 when the latter is inserted in the rotor 40 to the point that leads to the test settings and of reference.

The key 10, in its movement beyond said point, drag the fittings 21 in translation by means of the bulge 14, which comes to push the nearest garrison of the anterior plate 47. The device then adopts its state of unlocking when each fitting 21 can be inserted into the authentication holes 323 and 333 of toothed crowns 32 and 33 of the authentication element 31 corresponding to said lining 21.

This is possible if the angular positions of all cuts 324, all cuts 334 and all axial ribs 24 are perfectly corresponding. This situation is represented in figures 5, 7 and 8.

The device adopts its blocking state by at least when one of the axial ribs 24 of at least one fitting 21 bumps into an edge of the authentication hole 323 or 333 of at least one toothed crown 32 or 33 of the element of authentication 31 corresponding to said fitting 21.

This is done if at least one cut 324 is not in the same angular position as a cutout 334, or if an axial rib is not in the same angular position that a cutout 324 or a cutout 334. Figure 6 shows a situation of this kind.

When the device adopts its state of unlocking, the longitudinal displacement of the fittings 21 leads the first sections 231 of the trimmings to be introduced, at least in part, into oblong opening 461 of the veil 46 that borders the corresponding cavities 41 on the side of the back plate 47. In parallel, the second sections 232 of the trimmings are introduced, at least in part, in the authentication holes 323 and 333 of the first and second crown 32 and 33 corresponding. Figure 9 depicts this situation.

It will be noted that this movement is only possible if there is a play between the back plate 48 and the cavity 41 closest to it, and between the anterior plate 47 and the cavity 41 closest to it.

These games are created for example by inserting a additional veil 46 between anterior plate 47 and cavity 41 plus next, and another veil 46 between the back plate 48 and the cavity 41 closer.

Device coding is done by therefore performing for each fitting 21 the following stages

one/

Choose in zippers 44/45 of oblong hole 41 corresponding to the fitting 21 the position cross section of crowns 32 and 33 for which the unlocking this is equivalent to choosing the transverse displacement of the fitting 21 for which the unlocking will take place.

2/

Choose the angular position they will occupy the first and second crown 32 and 33 in the transverse position chosen in point 1 / and for which the unlock

The shape of the front part 11 of the key 10 and from coding reliefs 12 can be deduced once these parameters set.

To make it more difficult to force the device, at least one garrison 21, and in general all, carries at least minus a relief of axial deception 25 in the second section 232 of its external surface 23, as shown for example in the figure 10.

Said deception 25 is presented in the form of a rib made of a piece with the lining 21, long and narrow, semi-disc section.

The axial length of said deception 25 is greater that the axial length of the axial ribs 24 that the garrison 21. The deceptions 25 extend longitudinally towards the first section 231 beyond the end of the ribs 24.

Authentication holes 323 and 333 respective of the first and second crown 32 and 33 of the element of authentication 31 corresponding to garrison 21 include each one a plurality of notches 35 of axial section corresponding to the axial section of the deception, visible in figures 3 to 9.

The number of notches 35 is greater than the number of deceptions 25 that the garrison carries 21.

Deception 25 can be introduced in a notch 35 by axial translation of the fitting 21, while the device is in its locked state.

In this case, deception 25 is introduced until that an axial rib 24 of the fitting 21 stops against a Toothed crown 32 or 33.

This feature of the device does more difficult for a forcer to try for each garrison 21 individually the angular positions that allow you to enter said fitting in the associated toothed crowns.

When the device can take its position of unlocking, the deceptions 25 line up with notches 35. The axial movement of the key 10 by means of which the comparison between test and reference settings it implies the introduction of cheating 25 in said notches 35 corresponding, as can be seen in figures 7 to 9.

In the embodiment represented in the Figures 1 to 10, the garrisons carry 6 scams distributed regularly between the ribs, and toothed crowns wear 12 notches each, distributed regularly between cuts 324 and 334.

The central hole 22 of each fitting 21 it presents cross sections whose size varies longitudinally. Said size decreases from one end longitudinally towards a middle plane of the fitting 21, and increases of symmetrical shape from the middle plane to the longitudinal end opposite of the fitting 21. The central hole has both beveled edges in the longitudinal direction.

This feature is especially advantageous, since the key 10 has in its previous part 11 some reliefs 12 that can form marked angles between them. The edges bevels of the central hole 22 allow the key to be inserted through the lining, despite these marked angles.

The cross sections of the central hole 22 of each fitting 21 have substantially triangular shapes  equilateral. The angles of these triangles are cut.

Also, other forms can be adapted, such as the square, pentagonal, polygonal or even lobed.

In the embodiment of the invention described above, each fitting 21 includes three ribs axial 24. These ribs are located in angular positions corresponding to those of the angles of the central hole 22.

It is possible to use a larger number of axial ribs, four or even more, without leaving the invention.

In the embodiment illustrated in the Figures 1 to 10, each toothed crown includes 36 teeth, and each Zipper includes four teeth.

These numbers of teeth are suitable for the intended object, but it is possible to use the device of the invention for example with zippers of between three and six teeth and crowns between twenty-seven and fifty-four teeth.

The device contains six trimmings in the embodiment illustrated in Figures 1 to 10. It can also be used with a lower or higher number of fittings.

The lower the number of trimmings, The lower the security level of the device.

On the contrary, a large number of trimmings guarantees greater security, but increases the cost and forces Reduce the size of each coding relief. Below a minimum size, there is a risk of device dysfunction.

The device can include a single crown by garnish, in order to simplify the mechanism and / or to authorize  several translations and, therefore, to accept several keys.

The key 10 carries in its previous part 11 the coding reliefs 12. This previous part 11 presents cross sections in the form of envelopes that are deduced from others by translation along the first transverse axis 2 and by rotation about the longitudinal axis 1 of the key 10. To facilitate the assembly of the device, the rotor is divided according to a longitudinal plane in two half cylinders.

These half cylinders are in solidarity with each other another using classic means, such as screws or rivets

It is well understood that the device described previously it is especially difficult to force. The configuration test mechanism is obtained in effect by double movement of the fittings, according to a transverse direction and in rotation. The reference configuration of the elements of authentication also results from a double movement, being joined the angular displacement to the lateral displacement by means of the zippers. Authentication items include two crowns that rotate in the opposite direction, which makes the forced device even more complicated. Finally, the principle of device operation is new and still unknown by forcers.

Claims (12)

1. Selective locking and unlocking device of a drive movement, applicable to a safety lock, said device including at least one key (10) elongated along an axis (1) and including authenticity coding reliefs (12 ) which follow each other along the longitudinal axis (1) of the key and extend perpendicularly to said axis, a palpation mechanism (20) of the authenticity coding reliefs (12), in which the key (10) is selectively introduces by means of a translation movement along its axis (1), an authentication mechanism (30) of the authenticity coding reliefs (12), and a rotor (40) in which the palpation mechanisms (20) are housed and authentication (30), including the palpation mechanism (20) a set of fittings (21) to which the reliefs (12) of the key (10) are respectively associated by reciprocal correspondence established after the introduction ction of the key (10), adopting said fittings (21), during the introduction of the key (10), respective positions controlled by the successive reliefs (12) of the key (10) and collectively defining a dynamic configuration of the mechanism of palpation (20) that is fixed in a static test configuration once the key (10) has been introduced, the authentication mechanism (30) providing a reference configuration at most after the introduction of the key (10), and carrying out the device a comparison between the test configuration and the reference configuration, adopting a lock or unlock state according to which the comparison reveals, or not, a correspondence between the compared configurations, ensuring each relief (12) of the key (10) placed in front of a fitting (21), in the dynamic configuration of the palpation mechanism (20), a rotation guidance of said fitting (21) around the lon axis of the key (10), both clockwise and counterclockwise, thus imposing each relief (12) by itself to the corresponding fitting (21) an angular orientation determined in a plane transverse to the longitudinal axis of the key (10 ) in the test configuration of the palpation mechanism (20), characterized in that each relief (12) of the key located in front of a fitting (21) further ensures a guide in translation of said fitting (21) along at least a first transverse axis (2) contained in the transverse plane and because the mechanism (30) includes a plurality of authentication elements (31) that adopt, during the introduction of the key (10), respective positions that collectively define a dynamic configuration of the authentication mechanism (30) dependent on the dynamic configuration of the palpation mechanism (20) and which is fixed, once the key (10) has been introduced, in the reference configuration to. 2. Device according to claim 1, characterized in that, in the dynamic configuration of the palpation mechanism (20), each relief (12) of the key (10) located in front of a fitting (21) also ensures a translation guide of said fitting (21) along at least a first transverse axis (2) contained in the transverse plane and both along one or the other of two antagonistic directions aligned on said transverse axis (2), thus imposing each relief (12 ) by itself to the corresponding fitting (21) a determined translation position along said first transverse axis (2) in the test configuration of the palpation mechanism (20). Device according to claim 2, characterized in that the fittings (21) are respectively associated by a permanent reciprocal correspondence to the authentication elements (31), adopting each authentication element (31), in the transverse plane and according to the first transverse axis (2), a translation position determined by the translation position of the corresponding fitting (21) and, in relation to the longitudinal axis (1) of the key (10) a rotation position joined by a function determined to the translation position of said authentication element (31). Device according to claim 3, characterized in that each fitting (21) is formed by a ring pierced by a profiled central hole (22) into which at least one relief (12) of the key (10) is selectively inserted. , said fitting (21) offering an external surface (23) having at least a first cylindrical longitudinal section (231) and a second longitudinal section (232) partly converted into a non-cylindrical by an axial rib (24), because the authentication element (31) corresponding to said fitting (21) includes at least a first toothed crown (32) crossed by an authentication hole (323) that covers at least the straight projections of the first and second longitudinal section (231 ) and (232) of the corresponding fitting (21) and in which the first section (231) of the corresponding fitting (21) in the configuration is introduced without freedom of movement and with free rotation Dynamic ón of the palpation mechanism (20), because the first toothed crown (32) is mounted mobile in translation in an oblong cavity (41) of the rotor (40) delimited by a first and a second elongated edge (42) and (43 ) along the first transverse axis (2), and because the first toothed crown (32) meshes with a rack (44) arranged on the first edge (42) of the oblong cavity (41) to adopt, around the longitudinal axis, a angular position of rotation linked by a first linear function to its translational position in the oblong cavity (41). 5. Device according to claim 4, characterized in that each authentication element (31) includes a second crown gear (33) crossed by an authentication hole (333) covering at least the straight projections of the first and second longitudinal section (231) and (232) of the corresponding fitting (21) and in which the first section (231) of the corresponding fitting (21) is introduced without freedom of movement and in free rotation in the dynamic configuration of the palpation mechanism ( 20), because this second toothed crown (33) is mounted mobile in translation in the same oblong cavity (41) of the rotor (40) as the first toothed crown (32), and because the second toothed crown (33) meshes with a rack (45) arranged on the second edge (43) of the oblong cavity (41) to adopt, around the longitudinal axis, an angular position of rotation linked to its translational position in the oblong cavity (41) by means of a second linear function, which varies in the opposite direction of the first linear function. Device according to claim 5, characterized in that the comparison between the test configuration and the reference configuration is carried out by means of a translational movement of the key (10), according to its longitudinal axis, beyond the movement of introduction of the key (10) leading to the test and reference configurations, the device adopting its unlocking state when each fitting (21) can be introduced into the authentication hole (323, 333) of each toothed crown (32, 33) of the authentication element (31) corresponding to said fitting (21), and adopting its blocking state at least when the axial rib (24) of the second longitudinal section (232) of at least one fitting (21) bumps against a edge of the authentication hole (323, 333) of at least one toothed crown (32, 33) of the authentication element (31) corresponding to said fitting (21). Device according to any one of claims 5 to 6, characterized in that at least one fitting (21) has at least one axial deception relief (25) in its second section (232), the axial length of said deception greater than the axial length of the axial ribs (24) carried by the fitting (21), because the respective authentication holes (323) and (333) of the first and second crown (32) and (33) of the element of Authentication (31) corresponding to the lining (21) each includes a plurality of notches (35) of axial section corresponding to the axial section of the hoax (25), the number of notches (35) being greater than the number of hoaxes ( 25) which carries the lining (21), and because the deception (25) can be introduced into a notch (35) by axial translation of the lining (21), while the device is in its locked state. Device according to any one of claims 4 to 7, characterized in that the central hole (22) of each fitting (21) has cross sections whose size varies longitudinally, said size decreasing from a longitudinal end towards a mid plane of the fitting (21), and increasing symmetrically from the middle plane to the opposite longitudinal end. Device according to claim 8, characterized in that the cross sections of the central hole (22) of each fitting (21) have polygonal or lobed shapes. Device according to any one of claims 6 to 9, characterized in that each fitting (21) includes at least three axial ribs (24), each toothed crown (32, 33) includes twenty-seven to fifty-four teeth (322 , 332) and each rack (44, 45) includes three to six teeth (443). Device according to any one of claims 1 to 10, characterized in that it contains at least two fittings (21). Device according to any one of claims 1 to 11, characterized in that the key (10) includes a front part (11) carrying the coding reliefs (12), said front part presenting cross-sections in the form of a shell that is deduct from each other by translation along a first transverse axis and by rotation around the longitudinal axis of the key (10).