EP0976894A2 - Lock for highly safe doors - Google Patents

Abstract

The invention relates to a lock for high-security doors with at least one tumbler set, which comprises at least one convertible tumbler consisting of a locking tumbler (8) and a locking tumbler (9), the locking tumbler (8) and the closing tumbler (9) being adapted for a changeover the locking tumbler releasable coupling (11b) are connected to each other, and with a change (5) secured by the tumbler set for the actuation of a latch (6) by a double-bit key (S) with different beards. In order to form the tumblers with such a lock in order to dispense with tumbler springs with closed locking channels (7b, 9a) and to be able to actuate the latch without changing the double-bit key (S), the reversible locking tumbler (9) consists of two parts from an upper part of the locking channel ( 9a) containing the upper part (9o) and a lower part (9u) containing the lower part of the closing channel (9a), one of which can be detachably coupled to the associated locking tumbler (8) via the coupling (11b) and which can also be coupled to one another by a releasable one Coupling (11a) can be coupled and is loaded relative to one another by a spring (9d). <IMAGE>

Description

The invention relates to a lock for high security doors with at least one Guard locking set, the at least one, from a locking lock and one Closing tumbler includes existing, switchable tumbler, the blocking tumbler and the locking tumbler by one for a change of the closing releasable coupling are connected to each other, and with a through the Locked change for the actuation of a trap by a Double bit key with different beards.

Such a lock for high security doors is in DE 197 38 244.4-15 disclosed. To the trap after pulling back the latch To be able to operate, the key had to come out of the lock removed and inserted into the lock upside down, as for the Actuation of the latch also used the key bit level to actuate the Trap is used. This handling disadvantage also has one from DE 44 31 923 C1 well-known castle, in which the shared tumblers each by a Are spring loaded, which increases wear of the key bit and of the locking channels of the tumblers and a failure of the Lock if one of the springs breaks.

The invention has for its object to provide a lock of the type described above, from the tumblers at least one tumbler can be switched and the overall purpose of avoiding tumbler springs a closed locking channel with a predetermined distance according to the respective key bit level between the upper and lower part of the locking channel have, which should take place via a change secured by the tumblers without changing the double-bit key.

The solution to this problem by the invention is characterized in that the locking tumbler is formed in two parts from an upper part containing the upper part of the closing channel and a lower part containing the lower part of the closing channel, one of which can be detachably coupled to the associated blocking tumbler via the coupling and which can also be coupled to one another by a releasable coupling and are loaded relative to one another by a spring.

With the invention is intended for use in high security doors Castle created, the one hand without spring-loaded and thus an elevated Guard locks subject to wear and a change trap actuation on the other hand despite the use of at least one Configurable guard locking without removing and changing the key between latch and latch actuation.

The remaining, apart from the at least one changeable guard locking, Unlockable tumblers can use one-piece tumblers be predetermined locking channel, which at the same time the locking and the Form locking tumbler. The dimensions of the closing channel and that for the The blocking channel provided for the tour pin accordingly corresponds to the respective one Key bit level, which can be used with all, for the respective lock Keys is the same. Except for the at least one two-part locking tumbler According to the invention, the tumbler set thus includes tumblers with fixed predetermined locking channel.

In a preferred embodiment of the invention, the step change is convertible two-part locking tumbler twice as large as the increment of the tumblers with a fixed locking channel, in order to change a to obtain a sufficiently large restricted area on the tumblers.

In a preferred embodiment of the invention, the distance is Forebeard step and the rear beard step from the axis of rotation of the Double-bit key for the switchable locking device identical, whereas the Distances of the front beard step and the rear beard step from the axis of rotation of the Double bit key for the tumblers that cannot be changed are different and the sum of the distances of the forebeard and backbeard stages is not for all changeable tumblers is the same.

Fig. 1

eine ohne Schloßdecke gezeichnete Draufsicht auf das Schloß mit Darstellung einer nicht umstellbaren einteiligen Zuhaltung bei ausgeschlossenem Riegel,

Fig. 2

eine der Fig. 1 entsprechende Darstellung bei zurückgezogenem Riegel,

Fig. 3

eine weitere Darstellung gemäß den Fig. 1 und 2 nach einer Fallenbetätigung,

Fig. 4

eine der Fig. 1 entsprechende Darstellung mit einer Draufsicht auf eine umstellbare Zuhaltung bei ausgeschlossenem Riegel,

Fig. 5

eine der Fig. 4 entsprechende Draufsicht bei zurückgezogenem Riegel,

Fig. 6

eine weitere Draufsicht gemäß den Fig. 4 und 5 bei zurückgezogener Falle,

Fig. 7

eine der Fig. 6 entsprechende Draufsicht nach einem Lösen der Kupplung zwischen Schließ- und Sperrzuhaltung mittels eines Umstellschlüssels,

Fig. 8

eine der Fig. 7 entsprechende Draufsicht nach Entfernen des bisher verwendeten Schlüssels,

Fig. 9

eine weitere Draufsicht gemäß den Fig. 7 und 8 nach Einführen eines neuen Schlüssels,

Fig. 10

eine der Fig. 7 entsprechende Draufsicht nach Umstellung der Schließzuhaltung auf den neuen Schlüssel,

Fig. 11

eine Draufsicht auf das Schloßblech mit Riegel, Wechsel und Falle,

Fig. 12

eine entsprechende Draufsicht auf das Schloßblech mit zusätzlicher Darstellung einer festen Zuhaltung,

Fig. 13

eine weitere Draufsicht auf das Schloßblech mit Darstellung einer umstellbaren Zuhaltung und

Fig. 14

eine Ansicht eines Doppelbartschlüssels und des Schlüsselbartes in vergrößerter Darstellung.

An exemplary embodiment of the lock according to the invention is shown in the drawing, namely:

Fig. 1

a top view of the lock drawn without a lock cover, showing a non-convertible one-part tumbler with the bolt locked,

Fig. 2

1 corresponding representation with the bolt withdrawn,

Fig. 3

1 shows a further illustration according to FIGS. 1 and 2 after a latch actuation,

Fig. 4

1 shows a representation corresponding to FIG. 1 with a plan view of a switchable tumbler with the bolt locked,

Fig. 5

4 shows a top view corresponding to FIG. 4 with the bolt withdrawn,

Fig. 6

4 shows a further top view according to FIGS. 4 and 5 with the trap withdrawn,

Fig. 7

6 is a plan view corresponding to FIG. 6 after the clutch has been released between the locking and locking tumbler by means of a changeover key,

Fig. 8

7 shows a top view corresponding to FIG. 7 after removal of the key previously used,

Fig. 9

7 shows a further top view according to FIGS. 7 and 8 after insertion of a new key,

Fig. 10

7 shows a top view corresponding to FIG. 7 after the locking tumbler has been changed over to the new key,

Fig. 11

a top view of the lock plate with bolt, change and latch,

Fig. 12

a corresponding top view of the lock plate with additional representation of a fixed tumbler,

Fig. 13

a further top view of the lock plate showing a switchable tumbler and

Fig. 14

a view of a double bit key and the key bit in an enlarged view.

Intended for high security doors, especially in prisons Lock comprises a lock plate 1, at the front, angled edge of one Forend 2 is attached. Through an opening in the faceplate 2 protrudes at the front end a locking shaft 3 formed locking head 3a. The bolt shaft 3 is by means of elongated holes 3b slidably mounted on guide pins 1a, which on Lock plate 1 are attached. He is wearing a 3d tour pen. To attach the the lock cover, not shown, the lock plate 1 is still with Provide threaded bushings 1b. This situation is best seen in Fig. 11 too detect.

The actuation of the bolt consisting of bolt shaft 3 and bolt head 3a is done by a key S, which is designed as a double-bit key. In the Fig. 11 drawn bolt step of this key S acts on one Translation lever 4, the one on the lock plate 1 bearing mandrel 1c is pivotally mounted and in a recess in the locking shaft 3 intervenes. This makes it possible to unlock the bolt by means of the key S in Fig. 1 shown excluded position not only drawn in Fig. 2 withdrawn withdrawn position, but by another amount in the To pull in the lock, by means of the back of the bolt step of the Key S, which is accordingly larger than without changing the angle of rotation Is turned 180 ° in the lock. The bolt thereby reaches the one in FIG. 3 drawn position, in which the front edge of the bolt head 3a behind the The rear edge of the faceplate 2 is. To have adequate leadership in this position ensure the bolt, 1 guide pieces 1d are on the lock plate attached, which cooperate with the bolt head 3a.

This additional retraction of the bolt takes place according to FIG Change 5 to be able to operate a trap 6. The change 5 is again over a bearing mandrel 1e pivotally mounted on the lock plate 1. He owns one Guide slot 5a for a driving pin arranged on the locking shaft 3 3c. The guide slot 5a is formed such that the driving pin 3c is at a movement of the locking shaft 3 between those in FIGS. 1 and 2 positions shown can move freely in the guide slot 5a, however the change 5 is pivoted clockwise when the Bolt shaft 3 from the position shown in FIG. 2 to that shown in FIG. 3 Position is retracted further into the lock housing.

In this case, the upper end of the change 5 pulls the trap 6 against By force of a latch spring 6a back into the lock. As in particular Fig. 11 reveals, the shaft of the trap 6 by guide pieces 1f and one Guide pin 1g, which in turn are attached to the lock plate 1, in the longitudinal direction flexibly guided. The trap 6 can also regardless of the operation of the Change 5 through a profile cylinder against the force of the latch spring 6a be withdrawn. This profile cylinder is in the drawings, in particular 11 only hinted at. His locking nose, not shown, works with one Projection 6b of the trap 6 together.

Both the actuation of the latch 3 and the retraction of the latch 6 are secured by at least one tumbler block, the at least one convertible, consisting of a locking tumbler and a locking tumbler Guard locking and other, not convertible tumblers includes. 12 is one of the tumblers 7 which cannot be changed, in addition to those shown in Fig. 11 shown parts of the castle. The function of this non-convertible Tumblers 7 is shown in FIGS. 1 to 3.

A switchable lock consisting of 8 and locking 9 Guard locking is shown in FIG. 13 with regard to its structure and with regard to its function 4 to 10.

In Fig. 12 it can be seen that the fixed, i.e. not changeable tumbler 7 with Guide slots 7a is provided, in each of which a rectangular guide mandrel 1h engages, which in turn is attached to the lock plate 1. That way tumbler 7 mounted on the lock plate 1 in a stationary manner can thus be in a vertical position Direction to be moved. This movement takes place through to the respective Tumbler 7 belonging to the level of the key bit as a double bit key trained key S.

14 shows the view of a key S and the enlarged representation of its double beard consisting of front beard V and rear beard H as well as its axis of rotation D. The distances a ₁ to a _{6 of} the front beard steps and the distances b ₁ to b _{6 of} the rear beard steps from the axis of rotation D are different for each non-adjustable tumbler 7, as can be seen from the enlarged view. However, the sum of the distances a ₁ plus b ₁ , a ₂ plus b ₂ etc. is the same for all the tumblers 7 that cannot be changed, so that for the tumblers 7 that cannot be changed, the dimensions of the closing channels 7b are identical, their position within the tumbler 7 however is different. This also results in different configurations for the tour pin channel 7c in the case of the individual tumblers 7 that cannot be changed.

Around the bolt head 3a from the excluded position shown in FIG. 1 To be able to withdraw the fixed tumblers 7 by means of each matching key bit level through the front bit V of the double bit key S be raised so that the Tourstift 3d in the area of the horizontal Part of the tour pin channel 7c reached. Only if this is not convertible for all Tumblers 7 is the case, by turning the key S further Latch from its excluded position according to FIG. 1 in the position according to Fig. 2 are withdrawn, the tour pin 3d the front horizontal Part of the tour pin channel 7c happens. Then lower the Tumblers 7 get the tour pin 3d into the position shown in FIG. 2. If now the trap 6 via the change 5 secured by the guard locking set by means of the rear bit H of the key S against the force of the latch spring 6a from the front position shown in FIG. 2 to that shown in FIG. 3 rear position must be withdrawn, the non-convertible Tumblers 7 again by means of the matching back bit steps of the key S. be raised far that the Tourstift 3d in the horizontal rear part of the tour pin channel 7c can occur. Only if this is the case can he Bolt shaft 3 from the position shown in FIG. 2 to that shown in FIG. 3 Position are moved, the trap 6 withdrawn via the change 5 becomes. When the key S is turned back, the tour pin 3d comes back in the position shown in Fig. 2 within the tour pin channel 7c. The bolt will moved back to its middle position shown in Fig. 2. The trap spring 6a pushes the latch 6 out of the faceplate 2 into the one shown in FIG Location.

To secure the actuation of both the bolt and the latch 6 Existing tumbler set includes, in addition to the fixed, i.e. not changeable tumblers 7 at least one more, from a Locking tumbler 8 and a locking tumbler 9 existing tumbler. This Configurable guard locking and the parts required for its conversion are shown in Fig. 13 shown.

According to this, the or each switchable tumbler consists of a blocking tumbler 8 with a tour pin channel 8a and a locking tumbler 9, which consists of two parts consists, namely the upper part 9o and the lower part 9u. Upper part 9o and lower part 9u of the locking tumbler 9 together form the closing channel 9a, depending on Training of the associated key bit level is adjustable.

For this purpose, the upper part 9o of the locking tumbler 9 by means of two in Elongated holes 9b engaging guide pins 1k movable in height on the Lock plate 1 out, whereas the lower part 9u of the locking tumbler 9 and Locking tumbler 8 are guided in a vertically movable manner on guide mandrels 10a a changeover plate 10 are arranged. The lower part 9u of the locking tumbler 9 is for this purpose in the illustrated embodiment with three elongated holes 9c trained for the guide mandrels 10a. The locking tumbler 8 has Embodiment only one slot 8b for a guide mandrel 10a, because the Locking tumbler 8 also with its front on the lower part 9u Locking tumbler 9 is guided, as can best be seen from FIG. 13.

Both between the lower part 9u and the upper part 9o of the locking tumbler 9 also between the upper part 9o of the locking tumbler 9 and the locking tumbler 8 clutch gears 11a and 11b are formed, so that on the one hand Upper part 9o and lower part 9u of the locking tumbler 9 relative to one another and on the other hand, the locking tumbler 8 relative to the upper part 9o of the closing tumbler 9 can be set in different positions.

The uncoupling and coupling of these parts is done with the help of Changeover plate 10, which is shown in Fig. 13 in its coupling position. she is in Direction of this clutch position loaded by a tension spring 10b. she can but against the force of this tension spring 10b attached to the lock plate 1 Guide pins 1l in the illustration in Fig. 13 shifted so far to the left that the clutch gears 11a and 11b disengage. This shift of the changeover plate 10 from that shown in FIG. 13 Coupling position in the release position shown in FIGS. 7 to 9 happens by means of a change-over slide 12. This change-over slide 12 is on the Lock plate 1 can be moved in height by guide bolts engaging in elongated holes guided and loaded by a clutch spring 13. The changeover slide 12 has a control slot 12a into which a mandrel 10c arranged on the changeover plate 10 intervenes. If the changeover slide 12 by means of a key operated Conversion eccentric 14 raised against the force of the clutch spring 13, causes that consisting of the mandrel 10c and the control slot 12a Slot control a movement of the changeover plate 10 against the force of it Tension spring 10b in Fig. 13 to the left by an amount such that the Clutch teeth 11a and 11b disengage. In this decoupled position can both the relative position between the lower part 9u and Upper part 9o of the locking tumbler 9 and the relative position of the upper part 9o the locking tumbler 9 can be changed to the locking tumbler 8. Once the Switching eccentric 14 is rotated back into its original position, the Changeover slide 12 due to the clutch spring 13 and the changeover plate 10 due to its tension spring 10b again in that shown in Fig. 13 Clutch position.

After the explanation of the structure of the changeable guard locking is now to be Function will be explained with reference to FIGS. 4 to 10. 4 to 6 the actuation of the switchable tumbler and FIGS. 7 to 10 the changeover on a double bit key with another key bit.

1 to 3 with respect to the fixed tumbler 7 also takes place at the changeable guard locking according to FIGS. 4 to 6 a withdrawal of the in excluded position located bolt head 3a from the position after Fig. 4 in the position of FIG. 5 by turning the key S, the 4 the locking tumbler 9 and with this the Locking tumbler 8 lifts so that the tour pin 3d in the front part of the horizontal tour pin channel 8a enters and the bolt from his excluded position according to Fig. 4 in its retracted position Fig. 5 can be moved. The Tourstift 3d is in this position rear area of the tour pin channel 8a; it comes after lowering the convertible, consisting of locking device 8 and 9 locking device Guard locking in the position shown in Fig. 5. To start from the position 5 by further retraction of the bolt, the latch 6 on the change 5 To be able to operate, the switchable guard locking must now be operated using the Hinterbarts H are raised again specifically, so that the Tourstift 3d again in the horizontal, this time the rear part of the tour pin channel 8a arrives, as shown in FIG. 6. Only in this through the tumbler set monitored position of the switchable tumbler, the trap 6 on the Change 5 are operated.

To switch the guard locking to another double-bit key 7, it is necessary, using a changeover key U to disengage the clutch teeth 11a and 11b when the door is open. By Turning this changeover key U is via the changeover eccentric 14 Changeover slider 12 raised and the changeover plate 10 in the drawing shifted to the left. This results in both a decoupling of the lower part 9u Locking tumbler 9 from its upper part 9o as well as a decoupling of the Locking device 8 from the upper part 9o of the locking device 9. The old key 7 remains in the position shown there, in which he upper part 9o and lower part 9u of the locking tumbler 9 against the force of a return spring 9d apart.

If the double-bit key S is now turned into the position shown in FIG. 8, pulls the return spring 9d upper part 9o and lower part 9u of the locking tumbler 9 to for mutual investment. This situation is shown in Fig. 8.

In order to set the locking tumbler 9 to a new key S ₁ , this key S _{1 is} now inserted according to FIG. 9 and turned into the position shown in FIG. 9. When the clutch teeth 11a and 11b are released, this new key S _{1 transfers the} upper part 9o and lower part 9u of the locking tumbler 9 to a new relative position in which the locking channel 9a of the locking tumbler 9 receives its new design. If the changeover key U and with it the changeover eccentric 14 is now turned back into its initial position, the changeover slide 12 is lowered due to the clutch spring 13 loading it and thus a return of the changeover plate 10 due to the tension spring 10b to the initial position in which the two clutch teeth 11a and 11b interlock in the new mapping. This completes the changeover of the three-part tumbler consisting of locking tumbler 8 and upper part 9o and lower part 9u of the closing tumbler 9.

The enlarged representation in FIG. 14 shows that the distance c _{1 of} the front beard V is identical to the distance c _{2 of} the rear beard H from the axis of rotation D of the key S in the key step intended for the changeable guard locking. The step jump to the adjacent steps for the tumblers 7 that cannot be changed is however twice as large as the step jumps between neighboring steps of these tumblers 7. Finally, the bolt step R of the key S is identified in FIG. 14.

Reference list

D

Axis of rotation

H

Back beard

R

Bolt step

S

key

U

Conversion key

a ₁ -a ₆

distance

b ₁ -b ₆

distance

c ₁ , c ₂

distance

V

Forebeard

1

Lock plate

1a

Guide pin

1b

Threaded bush

1c

Bearing mandrel

1d

Guide piece

1e

Bearing mandrel

1f

Guide piece

1g

Guide pin

1h

Guide pin

1k

Guide pin

1l

Guide pin

2nd

Forend

3rd

Bolt shaft

3a

Bolt head

3b

Long hole

3c

Driving pin

3d

Tour pin

4th

Translation lever

5

Change

5a

Guide slot

6

Cases

6a

Trap spring

6b

head Start

7

solid tumbler

7a

Guide slot

7b

Locking channel

7c

Tourstiftkanal

8th

Locking device

8a

Tourstiftkanal

8b

Long hole

9

Locking tumbler

9a

Locking channel

9b

Long hole

9c

Long hole

9d

Return spring

9o

Top

9u

Lower part

10th

Conversion plate

10a

Guide pin

10b

Tension spring

10c

mandrel

11a

Clutch teeth

11b

Clutch teeth

12th

Diverter slide

12a

Control slot

13

Clutch spring

14

Conversion eccentric

Claims (5)

Lock for high-security doors with at least one guard locking set, which comprises at least one convertible guard locking consisting of a locking tumbler (8) and a locking tumbler (9), the locking tumbler (8) and the locking tumbler (9) being released by a coupling which can be released for a change of the lock (11b) are connected to each other, and with a change (5) secured by the guard locking set for the actuation of a latch (6) by a double-bit key (S) with different beards,
characterized by
that the locking tumbler (9) is formed in two parts from an upper part (9o) containing the upper part of the closing channel (9a) and a lower part (9u) containing the lower part of the closing channel (9a), one of which can be released via the coupling (11b) can be coupled to the associated locking tumbler (8) and can also be coupled to one another by a releasable coupling (11a) and is loaded relative to one another by a spring (9d). Lock according to claim 1, characterized in that except at least a convertible two-part locking tumbler (9) the tumbler set tumblers that cannot be changed (7) with a predetermined locking channel (7b) includes one piece a locking tumbler and one Form locking tumbler. Lock according to claim 1 or 2, characterized in that the Step change of the switchable two-part locking tumbler (9) twice as much is as large as the increment of the tumblers (7) with a fixed locking channel (7b). Lock according to at least one of claims 1 to 3, characterized in that the distance (c ₁ , c ₂ ) of the front bit step and the rear bit step from the axis of rotation (D) of the double bit key (S) for the switchable locking tumbler (9) are identical. Lock according to at least one of claims 1 to 4, characterized in that the distances (a ₁ to a ₆ ) of the front bit step and the distances (b ₁ to b ₆ ) of the back bit step from the axis of rotation (D) of the double bit key (S) for the tumblers that cannot be changed (7) are different and the sum of the distances (a ₁ to a ₆ , b ₁ to b ₆ ) of the front and rear beard stages is the same for all the tumblers (7) that cannot be changed.

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