EP1607553B1 - Lock cylinder - Google Patents

Description

The invention relates to a lock cylinder with Stiftzuhaltungen in which a basic code with at least one Umstellschlüssel is changeable, with a cylinder housing in which a rotor is mounted, which has a keyway into which a provided with control surfaces shank of a normal key for the classification of the first three rows arranged tumblers can be inserted, with further tumblers, which have coding and which are arranged in a programming position of the rotor in further holes of the cylinder housing.

Locking cylinders with pin tumblers, the closure of which can be changed, are already known in numerous designs. For example, the shows EP 0250701 a cylinder lock in which at least one pin tumbler has a so-called variation plate. This variation plate can be absorbed by a recess in the core and thus removed from the area of Stiftzuhaltung. With this lock cylinder, the lock can be changed without replacement and without removing the lock. This is required, for example, if a key is lost.

The EP 0918124 A also discloses a lock cylinder in which a basic code can be changed. For this purpose, a key has a recess, which receive a Hilfszuhaltung and thus it can be removed or replaced. In this lock cylinder is a conversion comparatively expensive and requires a specialist.

The GB 2154652 A discloses a lock cylinder having a separate bore and a separate core with encoder discs for collection of closure members. These coding discs can be stored. The lock cylinder has several shear lines and can therefore only be produced with a comparatively large outside diameter.

The invention has for its object to provide a lock cylinder of the type mentioned, which ensures a much higher security.

The object is achieved in a generic cylinder lock in that cooperates in the programming position of the Umstellschlüssel with three other rows of tumblers, which are arranged in sliders and these other rows each contain tumblers with coding. When closing cylinder according to the invention, the conversion can be done simultaneously in three rows or three drilling lines. Thus, the arrangement of the Umstellpositionen, and thus the tumblers with coding on three levels and thus done over much more holes. As a result, the Umstellmöglichkeiten be substantially increased. This results in a much higher security. The higher security results in particular by a secure concealment of the changeover positions or the coding positions. Thus, it can not be determined where the coding positions are on the key. Due to the many Umstellmöglichkeiten the owner of the lock cylinder several times, for example, 10 or 20 times forward and backward change or program. Used key sets can be archived and reused after a certain amount of time. It is also essential that the arrangement of the other rows in slides a small outside diameter and also a particularly simple installation is possible.

According to a development of the invention it is provided that the cylinder housing has recesses, in each of which a slider is inserted, the housing pins of the pin tumblers receives. These slides can be made prior to insertion into said recesses and fitted with the housing pins. The one with the When the slides are fitted, tumbler-mounted rotors can be mounted in the cylinder housing, so that after the slides slide into the housing, the lock cylinder is already functional. This development also has the significant advantage that the lock cylinder can be realized with a conventional outer diameter of 17 mm.

A development of the invention provides that the further rows are arranged asymmetrically with respect to a center plane of the lock cylinder. Thus, a left version and a legal version is possible. This has the significant advantage that central systems can be built. In a residential building, for example, the front door is equipped with a lock cylinder, which has the left version. The apartment doors are then each equipped with a lock cylinder according to the legal version.

A development of the invention provides that at least one of the three further rows has an immovable pin position. This pin position is preferably the rearmost position. A normal key can therefore not be used for programming. For programming a special Umstell- or programming key is necessary, which has a notch, in which the radially non-movable pin can extend and retract. A normal key without this notch can not be pushed in the programming position until the key stop in the keyway. In the programming position, every normal key is locked out.

The lock cylinder is according to a development of the invention, a double lock cylinder. The two cylinder housings are preferably made separately and connected to a web. The division into two cylinder halves enables a particularly simple assembly, in which said slide are inserted into the recesses of the cylinder halves.

The invention also relates to a Umstellschlüssel for a lock cylinder according to claim 14. This is provided that it at the front end of the shaft has at least one notch open towards the front. This notch allows the use of the key in the programming position in which at least one pin is immovable.

There are indeed versions with two rotationally symmetrically arranged notches or four symmetrically arranged notches possible. Accordingly, two or four immovable pins are present in the lock cylinder.

Further advantageous features emerge from the dependent claims, the following description and the drawings.

Figur 1

einen erfindungsgemässen Schliesszylinder, wobei sich der Rotor und die Zuhaltungen in der Montagestellung befindet,

Figur 2

der Zylinder gemäss Figur 1 jedoch mit eingesetztem Umstellschlüssel,

Figur 3

der Schliesszylinder nach einem Umprogrammieren,

Figur 4

der Schliesszylinder bei abgezogenem Schlüssel,

Figur 5

der Schliesszylinder in der Programmierstellung mit einem eingesetzten zweiten Umstellschlüssel,

Figur 6

der Schliesszylinder nach dem Umprogrammieren mit dem zweiten Umstellschlüssel,

Figur 7

der Schliesszylinder nach dem Abziehen des Umstellschlüssels nach der zweiten Version,

Figur 8

ein weiterer Schnitt durch den erfindungsgemässen Schliesszylinder,

Figur 9

ein Schnitt gemäss Figur 8, jedoch mit dem Rotor in der Programmierstellung,

Figur 10

Beispiele von Codekarten,

Figuren 11a - 11c

drei Ausführungsbeispiele des erfindungsgemässen Programmierschlüssels,

Figuren 12a - 12c

Vorderansichten der Schlüssel gemäss den Figuren 11a - 11c,

Figuren 13a - 13c

Längsschnitte durch bestückte Schieber,

Figur 14

eine Frontansicht eines Zylindergehäuses mit asymmetrischer Anordnung von Ausnehmungen für die Schieber,

Figur 15

eine Ansicht gemäss Figur 14, wobei die Ausnehmungen anders orientiert sind und

Figur 16

schematisch eine räumliche Ansicht des Zylindergehäuses gemäss Figur 14.

An embodiment of the invention will be explained in more detail with reference to the drawing. Show it:

FIG. 1

a locking cylinder according to the invention, wherein the rotor and the tumblers are in the assembly position,

FIG. 2

the cylinder according to FIG. 1 but with inserted Umstellschlüssel,

FIG. 3

the lock cylinder after a reprogramming,

FIG. 4

the locking cylinder with removed key,

FIG. 5

the lock cylinder in the programming position with an inserted second changeover key,

FIG. 6

the lock cylinder after reprogramming with the second changeover key,

FIG. 7

the lock cylinder after removal of the changeover key after the second version,

FIG. 8

a further section through the lock cylinder according to the invention,

FIG. 9

a section according to FIG. 8 , but with the rotor in the programming position,

FIG. 10

Examples of code cards,

FIGS. 11a-11c

three embodiments of the inventive programming key,

FIGS. 12a-12c

Front views of the keys according to the FIGS. 11a-11c .

FIGS. 13a-13c

Longitudinal sections through fitted slides,

FIG. 14

a front view of a cylinder housing with asymmetric arrangement of recesses for the slide,

FIG. 15

a view according to FIG. 14 , wherein the recesses are oriented differently and

FIG. 16

schematically a spatial view of the cylinder housing according to FIG. 14 ,

The in FIG. 1 Locking cylinder 1 shown has a rotor 3 which is mounted in a cylinder housing 2a. The cylinder housing 2a usually has a cylinder bag 9, which is shown only partially here. The FIG. 16 indicates that the cylinder bag 9 has a recess 8 for receiving a connecting web, not shown here, which connects the cylinder housing 2a with another cylinder housing 2b. The lock cylinder is preferably a double lock cylinder with two cylinder housings 2a and 2b, which are fixedly connected to one another by a connecting web. For anchoring the connecting web, the two cylinder housings 2a and 2b each have holes 10 for receiving a connecting pin, not shown here.

The rotor 3 has a key channel 4 for receiving a normal key or a Umstellschlüssels 17. The Umstellschlüssel 17 or programming key is preferably a so-called reversible key or flat key, which in the shaft according to FIG. 2 Control surfaces 18 has created by holes. The holes can be simple holes, stepped holes, millings or the like. The bores are preferably arranged in the narrow sides as well as in the side surfaces of the key shank.

The cylinder housing 2a has 6 recesses 7, which extend in longitudinal directions of the key channel 4 and each receive a slider 6. The slides 6 each have according to the FIGS. 13a to 13c a plurality of holes in different hole patterns, which are arranged in a row and each having a housing pin 12 and in some cases at least one coding element 13 record. The housing pins 12 are each provided with a coil spring 11 or other suitable spring element on an in FIG. 16 shown relatively thin housing wall 30 supported. In the FIGS. 1 to 9 this housing wall 30 is not shown for graphic reasons. The housing pins 12 are different in length, like the FIGS. 13a to 13c for example, show.

The slides 6 with the springs 11, the housing pins 12 and optionally the coding elements 13 form Zuhaltungsreihen A to F. The tumbler rows A, B and C work together with the normal key. The tumbler rows D, E and F, on the other hand, merely serve to convert or program the closures. As can be seen, the tumbler rows A, B and C are according to FIG. 1 arranged symmetrically with respect to a median plane M. The tumbler row A is in the nine o'clock position, the tumbler row B in the twelve o'clock position and the tumbler row C in the three-o'clock position. However, the Zuhaltungsreihen D, E and F provided for conversion or programming are arranged asymmetrically with respect to the center plane M, as well as the FIG. 1 lets recognize. The tumbler row D is in the Halbelfuhrstellung, the Zuhaltungsreihe E in the half-time position and the tumbler row F in the Halbfiinfuhrstellung. These tumbler rows D, E and F are rotated clockwise by 45 ° with respect to the tumbler rows A, B and C.

The rotor 3 is provided with three drill rows H, I and K, wherein the first row of drill H core pins 14, the second row of drilling I core pins 15 and the third row of drill K core pins 16 has. These pins 14, 15 and 16 are usually different lengths, even within a row of holes. Such core pens are well known in the art.

Based on FIGS. 1 to 4 the conversion of a closure with a changeover key 17 will be explained in more detail below.

The FIG. 1 shows the lock cylinder 1 in the basic position after installation. The tumblers with the core pins 14, 15 and 16 are in the locked position, and thus not arranged with a key. The shear line 5 between the rotor 3 and the cylinder housing 2a is transferred by the housing pins 12, 12 'and 12 "and thus the rotor 3 is locked with respect to the cylinder housing 2a The rotor 3 is here in the programming position, ie with respect to the median plane If the changeover key 17 is now inserted into the keyway 4, then the tumblers of the tumbler rows D, E and F are displaced radially outwards.The housing pins 12, 12 'and 12 "no longer lock. Two coding elements 13 of the tumbler row F are offset beyond the shear line 5 to the outside in the corresponding slide 6. In the drilling row I is a coding element 13. In the drilling row H are still both coding elements 13th

Next, the rotor 3 is rotated by turning the Umstellstellschlüssels 17 counterclockwise by 45 °. The located in the rotor 3 Codierelemente 13 are thereby also rotated by 45 ° in the counterclockwise direction. These coding elements change their position. Next, the changeover key 17 will be subtracted. The tumblers are now moved radially inwardly by the action of the springs 11 until the tips of the core pins 14, 15 and 16 touch. The rotor 3 is thereby locked. Of course, this applies simultaneously not only for three tumblers, but for each of three rows of tumblers. The conversion of the closure is completed. As can be seen, such a conversion is extremely easy and can be done by anyone very quickly in a few seconds.

The FIGS. 5 to 7 show a changeover with a changeover key 17 ', the FIG. 5 equals to FIG. 2 However, the tumblers according to the different control surfaces 18 of the Umstellschlüssels 17 'are correspondingly different radially offset. The coding elements 13 are correspondingly distributed differently on the rotor 3 and the cylinder housing 2a. The two coding elements 13 top left are in Umstellschlüssel used 17 'in the cylinder housing 2a, while in the other positions, the two coding elements 13 are each in the rotor 3. Now, the rotor 3 with the Umstellschlüssel 17 'counterclockwise by 45 ° in the in the FIG. 6 rotated position shown. Now the Umstellschlüssel 17 'deducted, whereupon the tumblers in the in the FIG. 7 shown positions fall. The conversion is with it completed. The closure according to FIG. 7 is as seen a different closure than the according FIG. 4 , That is, the lock cylinder 1 according to FIG. 7 requires a key other than the one to classify the tumblers FIG. 4 , The lock cylinder according to FIGS. 4 and 7 can be changed again.

The arrangement according to FIG. 4 is thus also starting from the arrangement according to FIG. 7 achievable and vice versa. A used key set can be made ineffective, archived and reused after a few years by changing the lock cylinder 1.

As the FIG. 8 shows, has the last drilling position of the tumbler row F no radial bore, in which the in FIG. 9 shown core pin 31 could dodge radially. This has the consequence that this pin position is radially immovable. Now, the rotor 3 with a normal key in the Umstellposition according FIG. 9 turned, this normal key can not be deducted in this position. It is also not possible to completely insert a normal key into the closing channel 4 with a rotor 3 in the programming position, since the core pin 31 abuts the front end of the normal key and prevents it from further penetration. Therefore, a normal key can not be used to switch a lock. This is possible with the changeover key 17 or 17 ', this has according to the Figures 11 a to 11 c and 12 a to 12 c at the front end notches 23 which extend in the longitudinal direction of the shaft 20, 21 and 22 and which are open at the front. Depending on the number of fixed core pins 31, the changeover key 17 has a corresponding number of notches 23. It can in rotationally symmetrical arrangement according to the Figures 12b and 12c two notches 23 or four and six notches 23 may be present.

The Figures 13a, 13b and 13c As shown, each slide 6, 6 'and 6 "has a plurality of coding positions P, each of which has at least one coding disk 13. These coding positions P as well as the drilling patterns can be varied in many ways. It is also possible to rotate the slider 6 by 180 °, so again results in a different arrangement. Thus, the slides 6 'and 6 "correspond to the slider 6, but these are only turned through 180 °, and the slides 6, 6' and 6" can be fitted outside the cylinder and form inserts 24, 25 and 26 which are mounted automatically can. In the insert 26, the above-mentioned immovable pin position is formed by a pin 28 which is inserted into a corresponding bore of the slider 6 ".

The pin 28 is accordingly an immovable core pin 31 at. The inserts 24, 25 and 26 can also be interchanged, which in turn results in other closures. The coding positions P can thus be varied in three levels and thus over a large number of different holes. This increases the Umstellmöglichkeiten and thus the security essential. The coding positions P are therefore completely obfuscated and can not be determined.

The cylinder housing 2a can in the version according to FIG. 14 or in the version according to FIG. 15 be educated. These two versions differ by the arrangement of the recesses 7. In the FIG. 14 are three recesses 7 ', which are provided for the conversion, rotated to the right, while in the embodiment according to FIG. 15 these recesses 7 'and 45 ° are turned to the left. With this setup, two complementary independent hole patterns can be included in the programming. As a result, a central system can be set up. Here, for example, the cylinder housing 2a according to FIG. 14 for the front door and the cylinder housing 2a according to FIG. 15 used for the apartment doors. The Umstellschlüssel 17 for the apartment doors can then not be used to switch the front door and vice versa. If the lock cylinder is a double lock cylinder, then it has two cylinder housings according to the version FIG. 14 or two cylinder housing according to the version FIG. 15 on. The FIG. 10 shows three examples of code cards, wherein the coding positions are each marked with K and the usual closing positions with X.

LIST OF REFERENCE NUMBERS

1. lock cylinders 22nd key shaft 2a cylinder housing 23rd score 2 B cylinder housing 24th inlay Third rotor 25th inlay 4th keyway 26th inlay 5th archipelago area 27th drilling 6th pusher 28th pen 7th recess 29th pen 8th. recess 30th housing wall 9th cylinder sack 31st core pin 10th drilling A tumblers 11th feather B tumblers 12th housing pin C tumblers 13th coding D tumblers 14th core pin e tumblers 15th core pin F tumblers 16th core pin H drill string 17th Change Key I drill string 18th control surface K drill string 19th key grip M midplane 20th key shaft P encoding position 21st key shaft

Claims (13)

1. A locking cylinder with pin tumblers, at which a basic code is changeable with at least one change key (17, 17'), with a cylinder housing (2a, 2b) in which a rotor (3) comprising a key channel (4) is mounted, into which a shank provided with control surfaces (18) of a standard key is insertable for the positioning of the tumblers which are arranged in three first rows (A, B, C) in the longitudinal direction of the key channel (4), with further tumblers comprising coding elements (13) and which, particularly in a programming position of the rotor (3), are arranged in bores of the cylinder housing (2a, 2b), wherein, in a programming position, the change key (17, 17') can cooperate with three further rows (D, E, F) of tumblers arranged in the longitudinal direction of the key channel (4), these tumblers being arranged in slides (6), wherein said three further rows (D, E, F) of tumblers serve for changing the closures of the three first rows (A, B, C), and these said further rows (D, E, F) of tumblers contain coding elements (13), wherein, by turning the change key (17), the coding elements (13) change the position relative to said tumblers or rows (A, B, C, D, E, F) respectively.
2. The locking cylinder according to Claim 1, characterized in that the further three rows (D, E, F) are arranged asymmetrically with respect to a central plane (M) of the locking cylinder (1).
3. The locking cylinder according to Claim 1 or 2, characterized in that the three first rows (A, B, C) and the further rows (D, E, F) are offset by a rotation of 45°.
4. The locking cylinder according to one of Claims 1 to 3, characterized in that the three first rows (A, B, C) are arranged symmetrically according to a central plane (M) of the locking cylinder (1).
5. The locking cylinder according to one of Claims 1 to 4, characterized in that the coding elements (13) are disk-shaped.
6. The locking cylinder according to one of Claims 1 to 5, characterized in that the cylinder housing (2a, 2b) comprises recesses (7) into each of which a slide (6) is inserted which accommodates housing pins (12) of the pin tumblers.
7. The locking cylinder according to Claim 6, characterized in that six slides (6) are arranged in the cylinder housing (2a, 2b), wherein three slides are arranged in the programming position.
8. The locking cylinder according to one of Claims 1 to 7, characterized in that at least one of the further three rows (D, E, F) comprises a fixed pin position.
9. The locking cylinder according to Claim 8, characterized in that the fixed pin position is the rearmost position.
10. The locking cylinder according to one of Claims 1 to 9, characterized in that it is a double locking cylinder and comprises two housing halves (2a, 2b) which are produced separately.
11. The locking cylinder according to Claim 10, characterized in that the two housing halves (2a, 2b) are firmly connected to one another by a web.
12. The locking cylinder according to Claim 10 or 11, characterized in that the housing halves (2a, 2b) are formed asymmetrically and are provided either in a version which is turned to the right or in a version which is turned to the left.
13. The locking cylinder according to one of Claims 1 to 12 and a change key as well as a standard key, characterized in that the standard key as well as the change key (17, 17') comprising bores by means of which the said control surfaces (18) are formed.

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