KR100538363B1 - Programmable cylinder lock with master key. - Google Patents

Abstract

The present invention is a stator (1); Rotor 9 and; Through a converting operation, a lock is associated with a programmable cylinder lock consisting of a mechanism 16-34 which allows a key C to fit the lock and a key different from the lock. The lock is subdivided into two or more sections and is adapted to be moved to the open position by actuation of two or more keys (C) having a different shape, thereby allowing the locking pin 45 to provide a master key arranged on one or more levels. Or a combination of the locking counter-pin 46 and the master device. Preferably, during the conversion operation, the lock includes an elastic fork ring 39 which cooperates with the rotor 9 to limit the free section of the keyhole 10 and is accommodated in the stator 1, so that the lock is specified at the conversion position. Only certain shaped keys C can be taken out of the keyhole 10 to allow reprogramming of the lock. The lock includes a pin 49 of a hard material inserted into the lock rotor 9 to prevent bleeding by means of a drill or other similar tool.

Description

Programmable cylinder lock with master key.

The present invention relates to a programmable cylinder lock consisting of a device that allows a key that was originally fitted to the lock to be locked to the lock via a conversion operation.

Throughout this application, the term “lock” refers to any particular type of lock, such as a lock, in addition to the lock of a general door.

Cylinder locks according to various embodiments suitable for actuating as described above are known, in particular locks according to EP 0,226,252. In the description herein reference may be made to programming mechanisms consistent with the mechanisms according to the European patent, but the invention is also applicable to cylinder locks using other programming mechanisms, without being limited to the use of such mechanisms.

By using locking pins divided into two or more parts, it can be operated by one key suitable for one particular lock, by one or more other keys called master keys, and by operating different locks, respectively. The master lock is known which may be operated by the respective keys. This allows you to set up the system at two or more levels within one group of locks, each with its own key that cannot operate the other group's locks, as well as a master key that can operate all groups of locks. It may be manipulated by one or more other master keys at lower levels, but is suitable for manipulating locks of each particular sub-group and locks of other sub-groups should not be considered as part of the entire lock group.

However, in known embodiments, a programmable cylinder lock cannot have a master key, but a cylinder lock with a master key is not suitable for programming.

1 is an exploded view of parts constituting a lock according to the present invention;

2 is a perspective view of a lock having an exterior and a brake partitioned to show internal parts;

3 and 4 are three-dimensional views of the inner components of the lock, seen from the left and right, respectively;

5, 6, and 7 are stereoscopic perspective views of three mechanisms involved in a lock;

8 is a cross-sectional view of the center, longitudinal and transverse planes of the lock, seen along the line VII-VII of FIG. 9;

9 is a cross-sectional view of the horizontal plane defined by the VIII-VIII line in FIG. 8;

10, 11 and 12 are vertical cross sectional views defined along the lines VII-VII, XI-XI and XII-XII of FIG. 8;

Figures 13 to 16 show how the lock according to the invention is operated to be operated by two kinds of keys.

17-22 show how a lock according to the invention is programmed to be operated by two different keys;

It is a first object of the present invention to provide a programmable cylinder lock that can be provided with a master key. It is a further object of the present invention to provide a programmable cylinder lock with a master key, which can be produced industrially advantageously. It is a further object of the present invention to provide a programmable cylinder lock with a master key having the characteristics of resistance to mechanical attempts and mechanical strength. It is a further object of the present invention to provide a programmable cylinder lock with a master key, in which the programming step is easily and reliably quick by the user. Finally, it is an object of the present invention to provide a programmable cylinder lock with a master key, in which a programming operation is allowed only by a person holding a particular key.

A first object of the present invention is achieved by a programmable cylinder lock consisting of a rotor, a stator and a mechanism that allows a key other than the one originally fitted to the lock to be locked through the conversion operation. The lock also includes one or more locking pins or counter-pins, which are subdivided into two or more parts and have characteristics suitable for being moved to an open position by two or more key actions of different shapes.

Preferably there is at least one locking pin or counter-pin subdivided into two or more parts.

Conventionally, it has always been used one by one, not in combination, but the invention features, among other things, combinations of different mechanisms in locks.

Because of this feature, the lock can be operated with two or more keys that differ only from the height of the teeth actuating the locking pin subdivided into two or more parts. By properly selecting the location where the breakpoints of the locking pins subdivided into two or more parts can be provided, several groups of locks can be provided, each of which can be operated by each key or by only one or more master keys. Because of the programming mechanism, several sets of keys and master keys can be predicted, and locks are suitable for operation by keys belonging to different sets of keys.

Advantageously, the lock consists of one or more locking pins or counter-pins that are not subdivided into several parts. The locking pin does not participate in programming the lock and does not provide a master key but contributes to the stability of the lock by increasing the number of combinations to be realized. Since the subdivided locking pins are economically manufactured and mounted, this makes the lock more advantageous in industry.

The programming mechanism, the locking pins subdivided into two or more parts, and the pins subdivided into several parts are organized into groups. This allows the manufacture and mounting of the lock in the best possible way. However, multiple groups or single devices can be arranged in various ways within the lock.

Advantageously, the lock consists of a stator, a cavity formed in the stator, a rotor inserted into the stator cavity and a key hole formed in the rotor, the programming mechanism comprising one or more longitudinally extending grooves and a series formed in the cavity in the stator A stator seat, a spring seated on the stator seat, and a locking counter-pin; a first seat crossing the keyhole in the rotor, a second seat parallel to the first seat, and disposed at right angles with the seat A first and second slit parallel to and comprising a series of driven differences inserted and inserted longitudinally and transversely within the first rotor seat to cooperate with teeth of the key inserted into the keyhole, Each tall driven vehicle has a plurality of protrusions at one edge, and a sliding joint member and engagement at the opposite edge A spring; The series of locking pins is slidably inserted into the second rotor seat, has a plurality of first recesses that coincide with the locking counter pins of the stator and oppose the protrusions of the keyed vehicle, and the one or more second recesses are keyed. Disposed opposite the driven vehicle; The stop bar is inserted into the first orthogonal rotor slit and has protrusions facing the second recess of the locking pin and extending in opposite directions suitable for cooperating with the stator grooves; The first spring is connected with the stop bar to push outward; The linear motion bar inserted in the second orthogonal rotor slit has a sliding joint member adapted to engage with the sliding joint member of the key driven and has a projection extending in the opposite direction suitable for cooperating with the stator groove; The second spring is connected with the linear motion bar to push outward; The part is adjusted so that the stator groove is disengaged when the stop bar moves outward under the action of the first spring so that the protrusion of the stop bar engages the second recess of the locking pin when the protrusion of the stop bar is not resisted with the stator groove. For example, when the projection of the linear motion bar is not resisted by the stator groove, the projection of the key driven vehicle engages with the corresponding recess of the locking pin and under the action of the second spring by attracting the key driven vehicle with each sliding joint member. The stator grooves disengage when the linear bar moves outwards; When the linear bar is registerd with stator grooves, the linear bar is moved outward by dragging the key driven, which separates it from the locking pin and returns the key in place to allow the lock to be programmed differently.

It is advantageous for the lock to have an elastic fork ring which cooperates with the rotor and is contained in the stator to limit the free section of the keyhole during the conversion operation. In this way, by appropriately shaping the key, only a certain key can be inserted and removed during the conversion operation, so that only those who possess this key can modify the programming of the lock.

The features, objects and advantages of the present invention will become apparent from the following detailed description of the embodiments with reference to the accompanying drawings.

1, 2 and 8 to 12, the lock according to the invention comprises a stator 1 in which the stator has a circular cross section with a longitudinal bottom projection, widely used in this kind of lock. It is a form. However, the shape of the stator is not critical, so the stator can be shaped to meet specific plant requirements. The stator 1 has a cylindrical seat 2 for the rotor 9, along which the longitudinal groove 3, which is arranged laterally in the region of the programming mechanism, extends (FIG. 12). In this embodiment, there is a single groove 3 extending orthogonal to the hole for the locking counter-pin, described below, but this is not the only possible arrangement and according to another embodiment two or more grooves arranged at different angles are Can be predicted. Further, in the embodiment shown, the stator 1 comprises a recess 4 for receiving a ring 5 having a web 6, which is coupled to the rotor 9 to form an operating member of the lock. do. However, in other embodiments the web may be replaced by another actuating member, such as the eccentric shaft of the key protruding from the back of the rotor 9. The stator 1 comprises vertical holes 7, 8 which receive the locking counter pins of the lock, described below.

The rotor 9 is cylindrical and is received in the stator seat 2 with a keyhole for inserting a flat key C, which is supported by the elastic rings 37 and 38 as well as the elastic fork ring 39. do. In the embodiment shown, when installed with the stator 1, the rotor 9 is engaged with a ring 5 having a web 8 by means of a coupling member 36 in order to actuate it. Rear spacing plug 40 closes the stator seat 2.

Three types of mechanisms are mounted in the stator 1 and the rotor 9, which are shown in FIGS. 5 to 7 and 10 to 12.

Type I mechanisms (FIGS. 5 and 10) are mechanisms having conventional locking pins and locking counter-pins, each unit of which comprises a locking pin 41 inserted into the hole 11 of the rotor 9 And the hole engages the keyhole 10 for the flat key C, as well as the locking counter-pin 42, the spring 43 and the rest block 44, and the corresponding longitudinal bore of the stator. By the supporting rod 35 inserted into it, all of them are inserted and supported in the hole 7 of the stator 1 together with other components. This mechanism is known and is applied to the locking pin 41 such that the separating surface between the locking pin 41 and the locking counter pin 42 is resisted with a cylindrical engagement surface between the stator 1 and the rotor 9. The rotor 9 can be rotated relative to the stator 1 only when the acting key C is set at a height. In all other positions the locking pin 41 or the locking counter-pin 42 forms a latch extending through the mating surface and preventing the rotation of the rotor 9.

It should be noted that the type I mechanism according to the prior art contributes to the stability of the lock. This is because this increases the number of possible combinations and increases the lock resistance by providing the latch member. However, this does not contribute to the programmability of the lock, nor can it provide a master key to the lock. Although it is advantageous to use many of the above mechanisms because of their simplicity of manufacture and installation, the locks according to the invention can be realized without the use of type I mechanisms, which are not limited to only the type I mechanisms.

Type II mechanisms (FIGS. 6-11) are lock mechanisms with typical master keys. It is installed in the same way as the type I mechanism, but differs in that the locking pin 46 is subdivided into two or more parts in the region adjacent to the separating surface for the locking counter-pin 46. Because of this feature, one of the separation surfaces between the locking pin 45 and the locking counter pin 46 or between the sections of the locking pin 45 is a cylindrical coupling surface and ridge between the stator 1 and the rotor 9. The type II mechanism rotates the rotor 9 with respect to the stator 1 when the height of the key C tooth acting on the locking pin 45 is set so that it stirs. In all other positions the section of the locking pin 45 or the locking counter-pin 46 extends through the coupling surface and forms a latch that prevents rotation of the rotor 9. Thus, in the unlocked position, the mechanism can accommodate teeth C of varying height equal to the number of sections forming the locking pin 45.

The movement of the type II mechanism is shown in Figs. 13-16, wherein the locking pin 45 is formed of four sections. According to FIG. 13, the key C corresponding to the mechanism is such that the separating surface between the first and second sections of the locking pin 45 is resisted to the cylindrical coupling surface between the stator 1 and the rotor 9. The tooth height of is set. Thus, the rotor 9 is free to rotate as shown in FIG. 14; Only the first section of the locking pin 45 rotates with the rotor and all remaining sections of the locking pin remain floating with the locking counter-pin 46. On the other hand, according to FIG. 15, the separation surface between the third and fourth sections of the locking pin 45 corresponds to the mechanism so that it is resisted to the cylindrical coupling surface between the stator 1 and the rotor 9. The height of the teeth of the key C is determined. Thus, the rotor 9 is free to rotate as shown in FIG. 16; The three first sections of the locking pin 45 rotate with the rotor and the remaining four sections of the locking pin remain floating with the locking counter-pin 46. According to this embodiment, the height of the teeth of the key C, which rotates the rotor, is two more.

By properly selecting the length and number of sections that form the locking pins of each type II mechanism, one can provide a master key at one or more levels to operate a certain number of locks, each of which is a separate key. Can work by and this key can't work lock of other group.

Especially in locks subdivided into multiple sub-groups, it is possible to provide an upper level master key and a lower level multiple master key capable of operating all groups of locks, one of the lower level master keys being the corresponding sub-group. All locks in the group may be activated, but locks in other subgroups may not. This scheme can be extended to more than one level of master keys.

Since this is a type II mechanism that gives the lock the possibility of having a master key, it requires at least one type II mechanism in the lock according to the invention but in practice the number of mechanisms is more than one preferred.

In the type II mechanism, the locking pin 45 is subdivided into two or more parts. The same movement can be achieved by subdividing the locking counter-pin into parts. That is, the additional section provided is considered differently from the locking pin 45 or the locking counter-pin 46.

The lock according to the invention should also include a programming mechanism, such as the type III mechanism described by way of non-limiting example.

Type III mechanisms (Figs. 7 and 12) are programming mechanisms consistent with the programming mechanism described in EP 0,226,252. To accommodate this mechanism, the rotor includes a set of first sheets 12 (FIGS. 8, 9) across the keyhole 10 for flat key C and is orthogonal to the sheets and parallel to the axis of rotation. In addition to the first slit 14 and the second slit 15, a set of second sheets 13 parallel to the first sheet are included. For each unit of the programming mechanism, a key driven 16 is inserted to move longitudinally and transversely in one of the first rotor seats 12 to cooperate with the key C teeth inserted in the keyhole 10. . This key driven 16 has a projection 17 at one edge and a sliding joint member 18 at the opposite edge, which is coupled to a spring 19 that pushes up. The locking pin 20 slides into one of the second seats 13 and faces the protrusion 17 of the key driven 16 as well as one or more second recesses facing the key driven 16. It has a plurality of first recesses. The stop bar 23 is inserted into the first orthogonal rotor slit 14 and is capable of cooperating with the stator grooves 3 and extending to the opposite sides, as well as the projections 25 extending to the second side of the locking pin 20. The protrusion toward the recess 22 is provided. The stop bar 23 is engaged with a spring 26 that pushes outward. The linear motion rods 27 are inserted into the second orthogonal rotary slit 15 and are adapted to cooperate with the stator grooves 3 as well as the projections 29 extending toward the opposite sides, as well as the key driven difference 16. A sliding coupling member 28 suitable for engaging the sliding coupling member 18 of the < RTI ID = 0.0 > The linear motion rod 27 is connected with the spring 30 which pushes outward.

The locking counter-pin 31 can be inserted into the stator hole 8 to cooperate with the locking pin 20; The block 33 is pushed by means of a spring 32 placed by means against the support rod 34 inserted into the corresponding stator bore. Locking counter-pins can be predicted to impart greater resistance to the lock, but this is unavoidable, and blocking the rotor imparts only to the blocking pins 20; The blocking counter-pin 31, the corresponding spring 32, the block 33 and the support rod 34 can be omitted in the lock according to the invention.

17-22, the operation of the programming mechanism is as follows.

If there is no key (FIG. 17) or if a wrong key is fitted, the locking pin 20 and the locking counter-pin 31 cross the engagement surface between the stator 1 and the rotor 9, and the movement of the rotor To prevent. Because of the engagement between the protrusion 17 and the recess 21, the locking pin 20 is fixed with the key driven 16. Under the action of the spring 26, the stop bar 23 is inserted into the projection 25 and the stator groove 3 so that the recess 22 and the projection 24 are separated and the corresponding key when the key is inserted or removed. The movement of the locking pin 20 together with the driven vehicle 16 is free. If the correct key is inserted (FIG. 18), the separating surface between the end of the locking pin 20 and the locking counter-pin 31 is registered with the mating surface between the stator 1 and the rotor 9, so that the lock Rotate 360 ° to operate. At the end of the rotary motion, all components are returned to their initial positions and the keys can be withdrawn.

Conversely, if the rotor 9 is rotated 180 ° to the translation position (FIG. 19), the projections 29 of the linear motion rod 27 engage the stator grooves 3, under the action of the spring 30, mutually. The mated sliding joint members 18, 28 move the key driven vehicle 16 laterally and separate the projections 17 from the recesses 21. On the other hand, the stop bar 23, which no longer matches the groove 3, engages the protrusion 24 with the recess 22, blocking the locking pin 20 in this position. If the key C can be pulled out of this position, all the key driven cars 16 are moved to the end of the stroke by the springs 19 and the lock loses the program.

Thereafter, by inserting a new key (FIG. 21), the key driven 16 has a program position corresponding to the new key. By rerotating the rotor by 180 °, the lock returns to the initial position but is programmed for the new key.

To make all of this possible, the new key is compatible with Type I and Type II mechanisms, which cannot be programmed and modified.

It is generally not advisable to allow anyone with a key to modify the lock's program. For this reason, it can be predicted that the normal key cannot be removed from the lock at the rotational position rotated by 180 °, and only the key with unique characteristics can be removed from this position to modify the lock program.

For this purpose an elastic fork ring 39 is provided to engage the peripheral groove 47 in the rotor 9 near the outer end, the rotor 9 being inserted into the cavity 2 of the rotor 1. The ring is then engaged with the corresponding inner peripheral groove 48 in the cavity 2 and remains stationary as the rotor rotates. An elastic fork ring 39 is shaped to interfere with the keyhole 10 for the insertion of the key when the rotor 9 rotates in its initial position. The corresponding notch T is provided in the key C adjacent to the handle, so that the key rotates freely even when the elastic fork ring 39 is present, but when it is rotated by 180 °, the registration of the elastic fork ring and notch T is the key C. To prevent it from being pulled out.

The key to modify the programming has a reduced height as indicated by B in FIG. 5. This key is not held by the resilient fork ring 39 so it can be rotated 180 ° and taken out of the rotor 9, but then another key with a reduced height can be reprogrammed with a lock.

Certain forms of modifying the lock's programming may be provided for all keys or only some of them or only a specific master key, and the keys may modify the lock's programming.

As can be seen herein, industrial manufacture of locks according to the present invention is relatively easy and advantageous, although the desired type of lock is complex. The operation of modifying the programming of the lock executed by the user is the simplest and at the same time the safest. The structure of the lock is suitable for various kinds of keys. The lock also has great resistance, even if the internal mechanism is very sophisticated. A pin 49 of hard material can be inserted into the rotor 9 to have a special resistance to attempts to damage the lock by a drill or similar tool.

It will be appreciated that the invention is not limited to the examples shown and described. While several possible modifications have been described, those skilled in the art will understand that other modifications may be utilized. In particular, although a single groove may be provided to cooperate with the stop bar and the linear motion bar in the lock stator, one or more keys placed in various positions may be provided with two or more grooves arranged at different angles to change positions. Matters replaced by technical equivalent means and the foregoing modifications may be applied within the scope of the present invention as described in the following claims.

Claims (6)

A rotor having a stator 1, a cavity 2 provided in the stator 1, and a keyhole 10 inserted in the cavity 2 of the stator 1. ) And a programming mechanism (16-34) for making a lock to match another key (C) and two or more keys (different forms), subdivided into two or more sections ( In a programmable cylinder lock consisting of a locking pin 45 or a counter-pin 46 which is brought into the opening position by the action of C), The programming mechanism 16-34 comprises one or more longitudinally extending grooves 3 formed in the cavity 2 and a series of stator sheets in the stator 1. seat, 8 and springs 32 and locking counter pins received in the stator seat; In the rotor 9, as well as a series of first sheets 12 traversing the keyhole 10 and a series of second sheets 13 parallel to the first sheet 12, A first slit 14 and a second slit 15, which are orthogonal to the seats 12, 13 and parallel to the rotor axis 0, and a key C inserted in the keyhole 10. And a series of key followers 16 inserted to cooperate with the teeth of the crank and adapted to move longitudinally within the first rotor seat 12. Each key driven 16 has a plurality of projections 17 on one edge, a sliding joint member 18 and an engagement spring 19 on the opposite edge; A series of locking pins 20 are slid into the second rotor seat 13, coincident with the locking counter-pins 31 of the stator, and the projections 17 of the key driven vehicle 16. A plurality of first recesses (21) facing one another and one or more second recesses (22) placed opposite the key driven vehicle (16); A stop bar 23 is inserted into the first orthogonal rotor slit 14 and extends in the opposite direction from the protrusion 24 towards the second recess 22 of the locking pin 20. Has a continuous protrusion 29 adapted to cooperate with a stator groove 3; A first spring 26 is connected with the stop bar 23 to push outward; A translation bar 27 is inserted into the second orthogonal rotor slit 15 and is a sliding joint member 28 that engages with the sliding joint member 18 of the key driven 16. And a continuous protrusion 29 extending in the opposite direction and for cooperating with the stator groove 3; The second spring 30 is connected with the linear motion rod 27 to push outward; When the continuous protrusion 25 of the stop bar 23 does not register with the stator groove 3, the protrusion 24 of the stop bar 23 has a second recess of the locking pin 20. (22), the stator groove (3) under the action of the first spring 26 is to be separated when the stop bar (23) to move outwards, but the continuous protrusion of the linear motion bar (27) When the 29 does not register with the stator groove 3, the protrusion 17 of the key follower 16 engages with the corresponding recess 21 of the locking pin 20 and mutually When the stator groove 3 moves the linear motion rod 27 outward under the action of the second spring 30 by attracting the key driven 16 due to the respective sliding joint members 28 and 18 engaged. When the stator groove (3) and the register (register) is to be separated, the linear motion rod 27 is a key driven The car is moved outwards by pulling the car 16, the key driven car is separated from the locking pin 20, the key C is replaced in this position, and the lock is programmed in a different way from the original programming. A lock characterized in that The lock as claimed in claim 1, wherein the locking pin 45 or the counter-pin 46 subdivided into two or more sections is one or more in total. The lock of claim 1 further comprising one or more locking pins 41 or counter-pins 42 not subdivided into sections. The method according to claim 1, further comprising a programming mechanism 16-34, a locking pin 45 or a locking counter-pin 46 subdivided into two or more sections, and a subdivision into several sections. Unlocked locking pins 41 or locking counter-pins 42 are integrally organized in groups, said groups being arranged in various ways within the lock. 2. The method of claim 1, in cooperation with the rotor 9 and in the stator 1 to limit the free section of the keyhole 10 during a change operation. It further includes an elastic fork-shaped ring 39, wherein only certain keys C in the form of reduced heights (line B) can be removed from the keyhole 10 at the transition position. Lock, characterized in that it allows re-programming of the lock 2. The lock of claim 1 further comprising a pin 49 inserted into the lock rotor 9 to prevent effraction with a drill or similar tool.