EP1607553A2 - Lock cylinder - Google Patents

Abstract

The cylinder has a rotor (3) mounted in cylinder housing, and including a keyway into which a shank of a standard key provided with control surfaces is pushed in order to position tumblers. The tumblers have coding units (13) arranged in bores in the housing in a programming position of the rotor. A basic code is changed using a change key that interacts with three rows of the tumblers in the programming position.

Description

The invention relates to a lock cylinder with pin tumblers, 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, in the one with control surfaces provided shaft of a normal key for the classification of the first three rows arranged tumblers can be inserted, with further tumblers, the coding elements and in a programming position of the rotor in further holes of the Cylinder housing are arranged.

Lock cylinders with pin tumblers, the closure of which can be changed, are already in numerous versions known. For example, EP 0250701 shows Cylinder lock, at least a Stiftzuhaltung a so-called Variation plate having. This variation plate can through a recess in the core be picked up and removed from the area of Stiftzuhaltung. In this Lock cylinder can close without replacement and without removal of the Castle to be changed. This is required, for example, if a key get lost.

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 a Auxiliary keep and record so that they can be removed or used again. In this lock cylinder, a conversion is comparatively complicated and needed a specialist.

GB 2154652 A discloses a lock cylinder for collecting Closing elements have a separate bore and a separate core with coding discs has. These coding discs can be stored. The lock cylinder has several Shear lines and can therefore only with comparatively large outer diameter getting produced.

The invention is based on the object, a lock cylinder of the type mentioned create, which ensures a much higher security.

The problem is solved in a generic lock cylinder that in the Programming position of the changeover key with three further rows of tumblers cooperates, which are arranged in sliders and these other rows each Contain tumblers with coding elements. In the inventive lock cylinder The conversion can be done simultaneously in three rows or three drill lines. Thus, the arrangement of Umstellpositionen, and thus the tumblers with Coding elements over 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 safe concealment of the changeover positions or the coding positions. It Thus, it can not be determined where the coding positions are on the key are located. Due to the many Umstellmöglichkeiten the owner of the lock cylinder several times, for example, 10 or 20 times forward and backward switch respectively program. Used key phrases can be archived and after a be used again at certain times. It is also essential that by the arrangement the other rows in sliders a small outer diameter and also one particularly simple assembly 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 receives the pin tumblers. These slides can be mentioned before insertion in the Recesses are manufactured and equipped with the housing pins. The one with the Tipped rotor equipped rotor can when inserting the slide in the cylinder housing be mounted so that after inserting the slide into the housing of the Lock cylinder is already functional. This training also has the significant advantage that the lock cylinder with a conventional outer diameter of 17 mm can be realized.

By a development of the invention it is provided that the further rows are arranged asymmetrically with respect to a median plane of the lock cylinder. This is a left version and a legal version possible. This has the significant advantage that Central systems can be built. For example, in a residential building the front door equipped with a lock cylinder, which has the left version. The Apartment doors are then each with a lock cylinder after the legal version equipped.

By a development of the invention it is provided that at least one of the three further rows has a stationary pin position. This pen position is preferably the rearmost position. A normal key can therefore be used for programming Not used. For programming is a special Umsetz- or Programming key necessary, which has a notch, in which the radially not movable pen can extend and retract. A normal key without this notch can be found in the programming position is not up to the key stop in the key channel be pierced. In the programming position, everyone is therefore a normal key 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 with a Footbridge connected. The division into two cylinder halves enables a particularly simple Assembly in which said slide in the recesses of the cylinder halves be used.

The invention also relates to a Umstellschlüssel for a lock cylinder according to Claim 14. This is intended to be 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 immovable.

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

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

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, however, with inserted changeover key,

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 Figure 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 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 Figure 14, wherein the recesses are oriented differently and

FIG. 16

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

The lock cylinder 1 shown in Figure 1 has a rotor 3, which in a Cylinder housing 2a is mounted. The cylinder housing 2a usually has a Cylinder bag 9, which is shown here only partially. FIG. 16 shows that the Cylinder bag 9 a recess 8 for receiving a not shown here Connecting web having the cylinder housing 2a with another Cylinder housing 2b connects. The lock cylinder is preferably a double lock cylinder with two cylinder housings 2a and 2b, with a connecting web are firmly connected to each other. For anchoring the connecting web, the two cylinder housing 2a and 2b respectively holes 10 for receiving a not here shown connecting pin.

The rotor 3 has a key channel 4 for receiving a normal key or a changeover key 17. The changeover key 17 or programming key is preferably a so-called reversible key or flat key, which in the shaft according to Figure 2 has control surfaces 18 which are provided by bores. The holes may be simple holes, stepped holes, milling or the like. The Holes are preferably in the narrow sides as well as in the side surfaces of the Arranged key shaft.

The cylinder housing 2a has 6 recesses 7 extending in longitudinal directions of Key channel 4 extend and each receive a slider 6. The slide 6 each have according to Figures 13a to 13c a plurality of holes in different Drilling patterns 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 with a coil spring 11 or other suitable spring element on an in Figure 16 shown comparatively thin housing wall 30 supported. In the figures 1 to 9, this housing wall 30 is not shown for reasons of the drawing. The Housing pins 12 are different in length, as the figures 13a to 13c, for example demonstrate.

The slider 6 with the springs 11, the housing pins 12 and possibly the Coding elements 13 form tumbler rows A to F. The tumbler rows A, B and C work together with the normal key. The tumbler rows D, E and F serve however, only for conversion or programming of the closures. As can be seen, the Zuhaltungsreihen A, B and C according to Figure 1 with respect to a Middle plane M arranged symmetrically. The tumbler row A is located 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. The conversion or programming provided Zuhaltungsreihen D, E and F are, however, with respect to the median plane M arranged asymmetrically, as can also be seen in Figure 1. The tumbler series D is in the Halbelfuhrstellung, the tumbler E in the Half-time position and the tumbler row F in the half-five-hour position. These Guard locking series D, E and F are with respect to the tumbler series A, B and C in the Turned clockwise by 45 °.

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

With reference to the figures 1 to 4, the conversion of a closure with a Changeover key 17 explained in more detail.

FIG. 1 shows the locking cylinder 1 in the basic position after assembly. 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 exceeded by the housing pins 12, 12 'and 12 "and is therewith the rotor 3 locked with respect to the cylinder housing 2a. The rotor 3 is located here in the programming position, that is with respect to the center plane M clockwise to Turned 45 °. If now the changeover key 17 is inserted into the key channel 4, then the tumblers of the tumbler rows D, E and F are moved radially outward. The housing pins 12, 12 'and 12 "no longer lock Latches F are on the shear line 5 to the outside in the corresponding Slider 6 offset. In the drilling row I is a coding 13. In the Bohrreihe H are still both coding elements 13th

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

FIGS. 5 to 7 show a changeover with a changeover key 17 ', FIG. 5 corresponds to Figure 2, but with the tumblers according to the different Control surfaces 18 of the Umstellschlüssels 17 'corresponding radially offset differently are. The coding elements 13 are correspondingly different on the rotor 3 and the Cylinder housing 2a distributed. The two coding elements 13 top left are at inserted Umstellschlüssel 17 'in the cylinder housing 2a, while in the other Positions, the two coding elements 13 are each located in the rotor 3. Now the Rotor 3 with the changeover key 17 'in the counterclockwise direction by 45 ° in the in the figure 6 rotated position shown. Now the Umstellschlüssel 17 'deducted, whereupon the Tumblers fall into the positions shown in FIG. The conversion is with it completed. The closure according to FIG. 7 is, as can be seen, a different closure than according to Figure 4. That is, the lock cylinder 1 according to Figure 7 requires for Classification of the tumblers a different key than the one according to Figure 4. Die Locking cylinders according to FIGS. 4 and 7 can be changed over again as desired.

The arrangement according to FIG. 4 is therefore also based on the arrangement according to FIG Figure 7 achievable and vice versa. A used key set may be ineffective made, archived and after some years by conversion of the lock cylinder 1 to be used again.

As FIG. 8 shows, the last drilling position of the tumbler row F has no radial Hole into which the core pin 31 shown in Figure 9 could dodge radially. this has As a result, this pin position is radially immovable. Will now the rotor 3 with a Normal key turned in the Umstellposition according to Figure 9, so this can Normal keys are not deducted in this position. It is also not possible at a rotor 3 in the programming position a normal key in the Close Schliesskanal 4, since the core pin 31 at the front end of the Normal key pokes and prevents this from further penetration. One Normal key can therefore 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, located in Longitudinal direction of the shaft 20, 21 and 22 extend and the front open are. Depending on the number of fixed core pins 31, the changeover key 17 has a corresponding number of notches 23. It can be rotationally symmetric Arrangement according to Figures 12b and 12c two notches 23 or four and six Notches 23 may be present.

FIGS. 13a, 13b and 13c show in longitudinal section the loaded slides 6, 6 '. or 6 "of the tumbler rows D, E and F. As can be seen, everyone owns Slider 6, 6 'and 6 "multiple coding positions P, each at least one Coding disc 13 own. These coding positions P as well as the drilling patterns can varied varied. It is also possible to rotate the slider 6 by 180 °, so again results in a different arrangement. Thus, the slider 6 'and 6 "correspond to the Slider 6, but these are only rotated by 180 °. The slides 6, 6 'and 6 "can be fitted outside the cylinder and form deposits 24, 25 and 26, the can be mounted automatically. In the insert 26 is the above immovable pin position formed by a pin 28 in a corresponding Bore of the slide 6 "is inserted.

The pin 28 is accordingly an immovable core pin 31 at. The inserts 24, 25 and 26 can also be exchanged with each other, so that in turn others Closures result. The coding positions P can thus be in three levels and thus be varied 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 Figure 14 or in the version according to be formed of Figure 15. These two versions differ by the Arrangement of the recesses 7. In FIG. 14, there are three recesses 7 'which are intended for the conversion are provided, turned to the right, while in the execution according to Figure 15 these recesses 7 'and 45 ° are turned to the left. Through this structure Two complementary independent drilling patterns can be included in the programming become. As a result, a central system can be set up. This is for example the cylinder housing 2a according to Figure 14 for the front door and the cylinder housing 2a used according to Figure 15 for the apartment doors. The Umschlüsselschlüssel 17 for the Apartment doors can then not be used to rearrange the front door and vice versa. If the lock cylinder is a double lock cylinder, then it points corresponding to two cylinder housing of the version according to Figure 14 or two Cylinder housing according to the version Figure 15 on. FIG. 10 shows three examples of Code cards, where the coding positions each with K and the usual closing positions are marked with X.

LIST OF REFERENCE NUMBERS

1.

lock cylinders

2a

cylinder housing

2 B

cylinder housing

Third

rotor

4th

keyway

5th

archipelago area

6th

pusher

7th

recess

8th.

recess

9th

cylinder sack

10th

drilling

11th

feather

12th

housing pin

13th

coding

14th

core pin

15th

core pin

16th

core pin

17th

Change Key

18th

control surface

19th

key grip

20th

key shaft

21st

key shaft

22nd

key shaft

23rd

score

24th

inlay

25th

inlay

26th

inlay

27th

drilling

28th

pen

29th

pen

30th

housing wall

31st

core pin

A

tumblers

B

tumblers

C

tumblers

D

tumblers

e

tumblers

F

tumblers

H

drill string

I

drill string

K

drill string

M

midplane

P

encoding position

Claims (16)

Lock cylinder with pin tumblers, in which a basic code with at least one Umstellschlüssel (17,17 ') is changeable, with a cylinder housing (2a, 2b) in which a rotor (3) is mounted, which has a keyway (4), in the a shaft of a normal key provided with control surfaces (18) for arranging the tumblers arranged in three first rows (A, B, C) can be pushed in, with further tumblers having coding elements (13) in a programming position of the rotor (3) in FIG further holes of the cylinder housing (2a, 2b) are arranged, characterized in that in the programming position of the Umstellschlüssel (17, 17 ') cooperates with three further rows (D, E, F) of tumblers, which are arranged in sliders and these further Rows (D, E, F) each contain tumblers with coding elements (C). Locking cylinder according to claim 1, characterized in that the further three rows (D, E, F) are arranged asymmetrically with respect to an intermediate end (M) of the closing cylinder (1). 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 °. Locking cylinder according to one of claims 1 to 3, characterized in that the three first rows (A, B, C) according to a median plane (M) of the lock cylinder (1) are arranged symmetrically. Locking cylinder according to one of claims 1 to 4, characterized in that the coding elements (13) are disc-shaped. Locking cylinder according to one of claims 1 to 5, characterized in that the cylinder housing (2a, 2b) recesses (7), in each of which a slide (6) is inserted, the housing pins (12) receives the pin tumblers. 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. Locking cylinder according to one of claims 1 to 7, characterized in that at least one of the further three rows (D, E; F) has an immovable pin position. Locking cylinder according to claim 8, characterized in that the immovable pin position is the rearmost position. Locking cylinder according to one of claims 1 to 9, characterized in that it is a double lock cylinder and has two separately produced housing halves (2a, 2b). Locking cylinder according to claim 10, characterized in that the two housing halves (2a, 2b) are fixedly connected to one another by a web. 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 right-handed or left-handed version. Locking cylinder according to one of claims 1 to 12, characterized in that the normal key and the Umstellschlüssel (17, 17 ') have holes through which said control surfaces (18) are formed. Umstellschlüssel for a lock cylinder according to claim 1, characterized in that it comprises at least one forwardly open notch (23) at a front end of the shaft. Umstellschlüssel according to claim 15, characterized in that the notches (23) are arranged rotationally symmetrically with respect to the longitudinal axis of the key. Umstellschlüssel according to claim 14, characterized in that it is a reversible key.

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