DE3409391A1 - MAGNETO - ELECTRONIC SYSTEM FOR OPENING AND CLOSING LOCKS - Google Patents

Description

, 3403391

) r. K. Fii

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Patent attorneys Dipl.-Ing. H. We iceman ν, Uipl.-Phys. Dr. JCFincke

Dipl.-Ing. RA ^ eickmann, Dipl.-Chem. B. Huber Dr.-Ing. H. Liska, Dipl.-Phys. Dr. J. Prechtel

PRRW 8000 MUNICH 86

PO Box 860820

GOMEZ-OLEA MaHi ₅ TAASSE ₂₂

NAVEDA, engineer phone »89) 98 03 52

TELEX5 ₂₂ 6 ₂ 1

Avda. Sancho el Fuerte, 24-3 Telegram Patentweickmannmonchen D. Escalera

PAMPLONA / Navarre
Spain

Magneto - electronic system for opening and closing locks

The invention relates to a magneto-electronic system for opening and closing locks, with the doors, for example of apartments, are provided and where the latches that shut them hold, can be operated by inserting a body as a key on an arrangement of Magnets should act, which in turn control electronic components that provide electrical power to the relay assign the unlocking of the bolt that has kept the door locked up to this point to allow the door to be opened.

These lock systems are currently widely used and replace the usual Bramah lock systems, based on serrated keys.

Very complex mechanical systems, electronic and magnetic systems are currently on the Market, usually with electrical contacts, light lines, frequency or capacitance oscillators

and magnetic combinations are used, which usually have magnets that are based on ferromagnetic Parts act, either based on cards or magnetic tapes and the combination with read heads. Castles, which are based on magnets, which in combination with magnetic detectors according to the reed or Hall effect contacts work are also used.

All currently known systems have problems or disadvantages; The effectiveness of the lock goes on . In the overwhelming number of systems it is lost when duplicate keys are used and occurs in others Dirt through the holes in which the magnetic keys or magnetic cards are inserted, making them unusable power. The fact that the keys commonly used in these locks are demagnetized is also inevitable.

Generally, the magnetic systems of locks and even the mechanical systems or the combination of both the disadvantage that the code or the key that enables the lock to be opened is in the section of the lock, which can be called the receiving part, that is, in the part, or in others Words, in the arrangement of parts that is attached to the door and the key through the appropriate slot or takes up the opening. The arrangement of the code or key in this receiving part enables any expert an access to the code and the key and to the localization of the same consequently the door by using duplicate keys, drills or simply by removing what is designated as the receiving part Part assembly is opened and the code inserted in this part is acted upon.

The currently known lock systems that use magnetic detectors have significant problems. That The first is caused by the fact that the electrical wiring of the different detectors is very complicated regarding the elaboration as well as the structure.

Also because the wiring should be individual for each key, the opening code is or Keys lie within the receiving part, zi ^ the the Access is difficult. Since about-this the magnets of these locks are arranged in the key or the receiving part the lock will become inaccessible or in other words useless if this key is accidentally used becomes demagnetized, even if only partially.

The locks to which the invention relates do not show any directly actuated safety bolts, as there are It is common to only install latches that are easily by means of an electrical device and against that of springs exerted force can be actuated, which these in the retracted position, that is, a closed position the door, seeks to hold.

Based on the aforementioned and taking into account the disadvantages mentioned, there is an essential feature of Invention in the fact that the code or the key is not in the part which is used as the receiving part of the lock arrangement is referred to, but in the part known as the male part, that is, included in the key and that the key is not permanently magnetic.

The object of the invention relating to magneto-electronic Locks refers to has the key, which contains a number of independent parts, although these

also have a part in the form of spikes or openings a soft iron plate, which can form on the receiving part or receivers, magnetic detectors, which are preferably reed or Hall effect contacts, which are arranged within the receiving part. The lock assembly also includes a single magnet, wherein all the mentioned contacts are continuously switched on as long as the key is not inserted. In combination with the above, the lock according to the invention includes one based on a printed circuit device that forms the holder for the detectors, and it has furthermore a multiple cable provided with two end connections, one of which is printed on the Circuit is arranged, while the other connection of the multiple cable on an electronic circuit is installed, to which a logic based on a microprocessor and an array of microswitches belongs, wherein a test device for the opening code cooperates with the aforementioned components.

Under these circumstances it can be seen that when the key or the card is in the receiver or in the Receiving part is used, the soft iron parts or spikes absorb the magnetic field of some detectors, which are permanently magnetized until the key has penetrated the receiving part, so that when the Soft iron key is inserted, some detectors are deactivated and the operating code is set in this way is that in case it matches the program in the microswitches, the microprocessor Transmits current to one or more suitable transistorized power units that allow the passage of electrical Power to the lock or, in other words, to the electromagnets that power the locking bolts or - control the door hook.

In the case of the aforementioned structure, it should be noted that the first time the with the appropriate code provided key is used, this code is tested by an "ad hoc" test device provided for this purpose and the microswitches are then arranged according to the exact reading provided by the test facility will. The logic is then ready for operation.

Further details, features and advantages of the invention can also be found in the following part of the description, in the exemplary embodiments of the invention with reference would be explained in more detail to the accompanying drawings will. Show it :

Fig. 1 is a perspective view of the two

Main components, i.e. the female and male parts, with only the exterior of the the first-mentioned part, i.e. the part or the arrangement of parts shown which the castle itself forms which in the to

opening door or should be installed separately from it, with both the main housing as well as the parts of the key itself to be described are shown; Fig. 2 is a perspective view of another

Embodiment of the key or plug-in part showing various configurations of its prongs;
Fig. 3 An exploded perspective view of the various, the lock, so the recording

part, forming parts;

Fig. 4 is a perspective view of both the in

the microprocessor to be installed holder as well as 3 ^r -> microswitches and the test device, the

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electronically connected to the detectors introduced into the lock shown in FIG. 3 is;

Figure 5 is a perspective view of the same lock with a tubular key and the hole through which the key enters the part or assembly of parts known as the female part;
A perspective view of the tubular key;

A longitudinal section through an embodiment of the key and the receiving part, which is in the Figures 5 and 6 are shown; The configuration of the etched on the plate 16 printed circuit;

A perspective view of the base and the holder 17 in which the magnetic detectors are housed;
Fig. 10 is a schematic view of the interior of a bolt or bolt, which is in one with a lock according to

the door equipped with the invention could be incorporated;

Fig. 11 The same scheme as in the previous figure, in which the lock is operated so that it is in an unlocked position;

FIG. 12 A view similar to that of FIG. 10, although in this case the bolt is controlled mechanically from a lateral position opposite the, shown in Figures 10 and 11; FIG. 13 A view of the lock from FIG. 12 in FIG unlocked position.

Fig. 6th Fig. 7th Fig. 8th Fig. 9

Logically, as mentioned earlier, the Figures 10, 11, 12 and 13 illustrated mechanisms by the magneto-electronic lock, which is described below or operated by other devices which, however, preferably control the lock.

FIG. 1 illustrates generally with the reference number 1 the arrangement of parts, referred to as the receiving part, that is in the door leaf or separate therefrom is installed, while the reference number 2 still generally indicates the key containing the code which after the translation or interpretation by the arranged in the housing 10 formed by the receiving part Magneto-electric devices allow the generation of electronic commands that the bolts logically unlocked via appropriate electronic devices such as electromagnets.

The receptacle of the receiving part consists of one or two bodies 9 and 10 within the container shaped in this way formed in combination with the keyhole cover, in which the opening for inserting the key is, the is clearly shown in FIG.

The key itself is formed from a holder 3 with a flat shaft, to which a recess 4 belongs, which can even be formed continuously, within which there is a part 5, which is the prong-like Has teeth 5a or openings 5b over which a small plate 6 is placed. All of this is fitting in one sized envelope 7 arranged. The part 5 is obtained from the part 5c by removing some of its teeth or Pips are removed.

The part 5 consists of soft iron and could accordingly be magnetized, although it has such properties

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shafts does not remain.

Although the key 3 of the embodiment shown in Figure 2 is based on a body that the 1, the serrated part 5, as in the previous case, forms the code for opening the lock and can be accommodated in a dovetail-like recess in which the narrow cover 8 so is used that the casing 7 does not need to be attached. It can be seen that the key 3 can be achieved by injection molding, casting or punching without first making the recess.

As shown in Figure 3, the receiving part consists of a housing which is formed from the part or parts 9 and 10, which form a kind of housing, inside which is screwed what is called the top of the housing, i.e. / the part 10 , and in which a pair of flanges 11 are spaced from one another by means of the screws shown in Figure 3 to form a magnet 12 in the form of an elongated rectangular flange o Immediately below this is a block consisting of plates 13, which also have holes like the flanges 11 and 14, which are fastened by means of the corresponding screws. Between the plates 13 and 14 are arranged two flanges 15, between which a passage is formed, which is accessible through the opening on the front of the housing, as shown in Figure 1, and through which the key, which in this case is right-angled, must step through in its flat position; however, if it is tubular, ie a key as shown in Figures 5, 6 and 7, this hole must logically be round, and accordingly the block consist of plates 13, 14 _/ and the flanges 15 can be a single unit with a mating one Hole (not shown in the figures, there

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it is deemed superfluous).

Below the plate 14 are sleeve-like spacers which, in combination with other spacers arranged on the underside of the lower part 9 of the housing, receive a plate 16 which contains a printed circuit with a holder 17, in which magnetic detectors are provided in this Printed circuit are used, the printed circuit logically connected by the terminals 18 to a multiple cable 19 ¹ , which has a further terminal 20 on the opposite side. The suitably closed structure of this type of housing is fastened in the door leaf or separately therefrom and in a suitable place that the key can be inserted, as shown in Figure 3. A key with a tubular section can also be used instead of a flat key will.

The connection 20 of the multiple cable 19 is, as in Figure 4 connected to another printed circuit board having a microprocessor 22 shown in is suitably combined with a group of microswitches and checkers 24. Set the microswitches the code selector of the key that passes through the openings, teeth or prongs of part 5 for the case a flat wrench or a series of soft iron washers and spacers that support them hold in a suitable manner within the tube forming the key, as shown in FIGS.

It can be seen in the holder of the microprocessor 22, i.e. in the plate 21 a switch 25 with two opposite positions, where in which one of the testers 24 begins to work, while the other forms the operating position.

• M09391 -AH-.

From the foregoing it can be seen that after inserting the flat or circular key in the corresponding hole in the part of the lock that forms the housing, some of the magnetic detectors, all of which are activated at that moment, are inre activity depending on the code of either the serrated plate or the perforated plate 5b of the flat key or the metal disks, if the key is tubular ο lose, so that the printed circuit carrying the detectors transmits, via the multiple cable, the instructions issued by the microprocessor, the logic of which is thus transmitted to the microswitches The effect is that if the code is correct, ie if the key is intended to open the door, the microprocessor switches through to one or more transistor-equipped power units, such as the relays that act on the bolts and keep the door closed ..

Hence it is clear that if anyone has one unauthorized attempt to open the door without using the key containing the code on the receiving part fiddling around, the structure of the bolt or latch cannot be unlocked, because, what needs to be emphasized, the The code is in the key and not in the receptacle.

The structure of the mechanical device for locking the door, preferably in combination with the one above mentioned magneto-electronic lock is used, will now be described in-the principle reference is made to the embodiments in Figures 10 to 13, the only difference with respect to FIGS. 10 and 12 in the closed position and with respect to the figures 11 or 13 is in the unlocked position.

As can be seen, the arrangement is enclosed in a housing 41, through one of the sides of the Projecting bolt 26 which structurally can be viewed or described as a pin to which a radial approach 27 near its rear end belongs to the same Time is conveyed through the part 28, which for this purpose has a slot 29 in which the projection 27 is housed, as in Figures 10 to 13 to see is.

The slot 29 is formed at the end of the piece 28 which is freely rotatable relative to the slot at 30 on a Connecting rod 31 and also articulated to another connecting rod 32, all of which can be freely rotated around 30 are.

The connecting rod 31 is in turn about the axis of rotation hinged to another piece 35, the purpose of which will be described. The other hand is the connecting rod hinged at one end at 30 and the connecting rod is freely hinged to the structure of the housing 41 at 40.

The bolt 3 6 abuts in a closed position against the part 35, the bolt 26 over a short distance in the Sleeve 37 can be pushed in until it reaches the end piece, as in a close position in Figure 10 or shown.

The bolt 26 or the controlling part 28 is constantly pretensioned by a spring 38, which is shown in FIG. or 12 illustrated locking position echoes. The end piece 35 has an axis of rotation, ie it can rotate about an axis 39. The axes 39 and 40, on which the end piece 35 and the connecting rod 32 P5 rotate, are logically fixed to the housing 41.

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When the current coming from the electronic components of the lock described above the electromagnet 42 reached via the conductor 43, this electromagnet is excited and then its plunger 44, ** As shown in Fig. 11 or 13, act on the connecting rod 32 that the part 28 down pulls, since both parts are freely rotatable about the axis 30.

¹ ^ The connecting rod 31 is also pulled, which, when it is pivoted, causes the end piece 35 to rotate, as shown in FIGS , the, from the sleeve 37

leads, can move down.

The rod or part 28 drags the attachment 27 and consequently the bolt 26 to which the attachment belongs, against the resistance of the spring 38 with.

By the time the electromagnet 42 is no longer receiving current, it is no longer energized and the expansion the spring 38 causes the arrangement to be that of the original one shown in FIGS. 10 and 12, respectively

Position returns, with the bolt 26 over the attachment 27, to the part 28 of all connecting rods and dragging parts along in order to resume the positions shown in the previous figures.

The surfaces 44 facilitate the abutment of the bolt against the part 35 when the electromagnet 42 is not is operated electrically.

The construction of the embodiments of FIGS. 12 and 13

is practically identical with the exception that the part 35 is in a lateral position with respect to the of the embodiment of FIGS. 10 and 11 is arranged.

Claims (7)

^ 3 ^ (19391 Dr. K. j Fincke Patent attorneys Dipl.-Ing. H. Wkic.kma ^, - D: pl; _t phys; Dipl.-Ing. R A.Weickmann, Dipl.-Chem. B. Huber Dr.-Ing. H. Liska, Dipl.-Phys. Dr. J. Prechtel 8000 MUNICH 86 POST BOX 860 820 MDHLSTRASSE 22 Mariano GOMEZ-OLEA phone (ossj ^ s0352 NAVEDA / Ingenieur Telegram patentweickmannMünchen Avda. Sancho el Fuerte, 24-3 ° D. Escalera PAMPLONA / Navarre
Spain Magneto - electronic system for opening and closing locks Claims ff) Magneto-electronic system to open and Closing of locks, characterized in that the opening code of the lock is in a key (3) is introduced, through which a device for determining the code can be excited, which with an electronic Circuit (22) with a device (24) for interpreting the code and a device (23) is provided for exciting the electromechanical locking / unlocking elements of the lock, wherein the opening code is made up of a series of serrated openings (5 ^), those in a metal layer (5) with temporarily but not permanently magnetizable properties are formed that absorb or deflect the magnetic field, the layer (5) in the The key (3) is integrated into the lamellar extension and is surrounded by a protective cover (7,8) is covered without magnetic properties, the device for determining the code in one prismatic housing (1,9,10) are housed, which is provided in the lock, the housing depending on the structure of the key (3) has an opening and a penetration passage, wherein in the passage a permanent magnet is arranged, while a flight of magnetic detectors in a holder (17) is arranged above that by means of a printed Circuit (16) through connections (18, 20) and a multiple conductor (19) with the electronic circuit (22) are connected, as the main active EIement a microprocessor with a work program that is controlled by a decision logic that puts this in proper relationship with the Brings numerous microswitches (23) to the working position, which correspond in number to the magnetic detectors, wherein the microprocessor controls the actuation of an operating stage, which as means for electrical supply of the locking / unlocking elements (26) of the lock is provided. 2. Magneto-electronic system for opening and closing of locks according to claim 1, characterized in that the jagged layer (5 ^) forming the opening code is inserted in the key (3) in a recess (7), the walls of which have no magnetic properties constitute the means for receiving and protecting the code. 3 “Magneto-electronic system for opening and closing of locks according to claim 1, characterized in that that the key (3) is predominantly tubular Has configuration, the opening code due to the special distribution of a series of narrow Metal disks with temporarily but not permanently magnetized properties is determined with alternate a series of non-magnetizable spacers, with all washers and spacers in the tubular area of the key (3) are arranged. 4. Magneto-electronic system for opening and closing locks according to claim 1, characterized in that that the key (3) has a flat, card-like shape, the opening code by the special Distribution of a series of serrated openings is determined in a metal layer made of a material are formed that absorbs or deflects the magnetic field, the entire metal layer is arranged between two parallel layers of a material without magnetic properties, which the Protect code. 5. Magneto-electronic system for opening and closing of locks according to claim 1, characterized in that the electronic circuit (22) with a two-way switch (25) for checking and assigning the decision logic as well as with an escape from electrically illuminated optical or diode indicators showing the work code. 6. Magneto-electronic system for opening and closing of locks according to claim 1, characterized in that the locking / unlocking elements of the lock are one Have electromagnet (42), the actuating rod (44) in an excited position against a Spring (38) on a lever (38) arranged as a tension element 34 409391 attacks, the arms of which are hinged to a bolt (27) or a hook of the bolt (26). 7. Magneto-electronic system for opening and closing of locks according to claims 1, 2, 3 and 4, characterized in that the material forming the code, which is arranged between the permanent magnet and the magnetic detectors, consists of soft iron.