WO2011035754A1

WO2011035754A1 - Safety lock with a key for repositioning the tumblers and for actuating the locking mechanism

Info

Publication number: WO2011035754A1
Application number: PCT/DE2010/000967
Authority: WO
Inventors: Thomas Schmidt
Original assignee: Kaba Mauer Gmbh
Priority date: 2009-09-28
Filing date: 2010-08-16
Publication date: 2011-03-31
Also published as: CN102695841B; DE102010022742A1; EP2483500B1; DE102010022742B4; BR112012007607A2; RU2012117801A; EP2483500A1; CN102695841A; RU2544829C2; PL2483500T3

Abstract

A key (7) serves for actuating a lock and has a grip, a shank (10) and a key bit (12), on which is arranged the coding of the key (7) in the form of key steps (13, 14, 18). The key bit (12) has key steps (13, 14, 18) on either side, wherein the diameter of their key bit (12), in relation to the key steps (13, 14), which project to the maximum extent in each case, is between 9,5 mm and 11 mm. A lock (1) for such keys (7), having a plurality of tumblers (24) arranged in a lock housing (2), has a rotatably mounted follower (3) which can be actuated via the key (7). This follower (3) is designed in the form of a multifunctional component, as a structural unit for repositioning the tumblers (24) and/or for controlling the locking function.

Description

DESCRIPTION

Safety lock with a key to change the tumblers and to operate the locking mechanism

The invention relates to a to be operated with a double-bitted key security lock with several arranged in a lock housing

Tumblers. Moreover, the invention relates to a key for actuating a

Security lock, with a reide, a stalk and a key bit, on which the coding of the key is arranged in the form of key steps,

Security locks for installation z. In safes are in

various variants known. The weak point of many well-known locks is the comparatively easy way to get through the lock-side opening with suitable tools in the lock interior to manipulate the tumblers. It is therefore important to keep the lock openings as small as possible, which requires that the keys also have to build small. For previously known locks, it is also necessary, in addition to the key for the actual closing function of the castle another key for the activation of the conversion of the tumblers to a new closure

reproach. The present invention thus sets itself the task of a

Security lock to create, with the particularly small building

Lock openings can be realized or the handling in relation to the conversion of the tumblers significantly simplified. This object is achieved according to a first variant of the invention in that the double-bitted key serves as the sole means for switching the tumblers and for actuating the locking mechanism.

The lock according to the invention can be handled with only one key. This key serves on the one hand to operate the locking mechanism and on the other hand to change the tumblers without any additional tools by the key at the same time the initiation of the changeover

takes over. Since the key is removable in the changeover position, the

Lock be delivered advantageously also in this position.

In addition, it is envisaged that the introduction of the

Key provided in the lock opening has a diameter between 9.5 mm and 11 mm. For example, in the vault about lying in this range dimensions are advantageous insofar as initially only a particularly small-sized breakthrough at the vault door is provided. Only at a production time reasons as late as possible then needs to be determined whether a

inventive, a combination or an electronic lock is installed in the safe. The provided for the insertion of the key opening in the lock housing and a safe door, which is assigned to this, can thus build very small, which significantly contributes to increasing safety, because Aufsperrwerkzeuge would also have to build smaller and are considerably harder to handle. The dimension of 9.5 mm corresponds to the minimum value given from a static point of view, the dimension 11 mm, taking into account a factor of the requirement that a dimension of 100 mm ² for such an opening must not be exceeded under safety criteria.

A conceivable solution for such a lock, in which the same key is used to operate the locking mechanism of the lock and to change the tumblers, provides that the lock a nut as a unit for

Has conversion of tumblers and / or to control the closing function. Such a nut is a multifunctional assembly having a variety of functions. The nut takes over the actual

Locking function with appropriate operation of the key and the

Control of the conversion of the tumblers in several steps and as a compact building part of the functions that would otherwise key or

Exercise key bit, especially what concerns the actual closing function in addition to the interaction with the tumblers. With such a lock, the function of initiating the key change can be implemented in conjunction with a suitable key, such as by rotation in the direction opposite to the opening direction.

It is envisaged that the nut is provided with a serving for operating the bolt of the lock Riegelmitnehmer and / or serving for the conversion of the tumblers Umstellzapfen. About the former, the actual closing function is realized, d. H. when the nut is turned due to the operation of the key, the lock is opened and closed via the locking mechanism. The latter is part of the unit for controlling the conversion of the tumblers. As a central unit of the lock according to the invention with respect to the nut is thought that the Riegelmitnehmer and the Umstellzapfen on the back of the nut, viewed in the insertion of the key, are arranged and that the nut with Riegelmitnehmer and Umstellzapfen is otherwise made in one piece.

Specifically, it is provided that the Riegelmitnehmer, seen in the radial direction of the nut, is arranged transversely. With appropriate operation of the

Turning and turning the nut is done via this latch cam opening or closing the locking mechanism and the displacement of the trap.

In addition, it is provided that the Umstellzapfen is arranged substantially in the radial direction on the nut, that is in the form of a circular arc. Thus, while the Riegelmitnehmer transmits with its longitudinal side the torque exerted on the key to the bolt, the radially positioned on the nut Umstellzapfen pushes the individual components in the corresponding positions when activating the Umstellfunktion of the castle, which will be discussed later.

A further embodiment of the invention provides that the

Umstellzapfen seen in the axial direction before, and / or in the radial direction of the nut, is arranged behind the Riegelmitnehmer. This means, on the one hand, that the locking catch, viewed in the radial direction of the nut, is positioned behind the changeover pin. On the other hand, this is understood to mean that the Umstellzapfen, seen in the axial direction, is further away from the plane of the nut than the Riegelmitnehmer. This ensures a perfect and independent function in relation to the closing on the one hand and the conversion of the tumblers on the other hand.

In addition, it is envisaged that the nut as an introduction to the

Has key serving centering. This is preferably one or more inclinations integrated in the nut, which lead to an automatic centering of the key. This solution can make a centering in the form of a hole in the key blade in conjunction with a housing-side mandrel redundant. Advantageously, there is no weakening of the material with the risk of later damage due to cracks, bumps, etc., due to the center hole which is instead provided at best.

With regard to the adjustment of the tumblers is provided that serves to activate the Umstellfunktion of the lock in a release position in its longitudinal direction displaceably mounted Umstellsperre. This points to, the housing wall side facing a suspension.

However, the changeover lock is not addressed directly when the key is turned. Rather, it is proposed that the Umstellsperre a Umstellwirbel upstream, the activation of which takes place via the Umstellzapfen. For this purpose, the key is rotated at intentional adjustment of the tumblers against the normal opening direction. The nut, more precisely the Umstellzapfen, presses the rotatably mounted Umstellwirbel from its position; Umstellwirbel and lock are activated.

It happens that the Umstellsperre allows in its release position a pivoting of a locking vortex. The latter and the Umstellsperre are designed to correspond to each other. The locking vortex falls for this purpose in the Umstellsperre, after which the activation of the conversion is completed.

A further advantageous embodiment of the invention provides that the tumblers together is assigned a spring component, which is for the

Positioning of the various tumblers ensures. Instead of individual springs, a resiliently acting on all tumblers, compact and easy to install component is provided in the form of a leaf spring that holds the tumblers in the neutral position so that the key can be easily inserted into the lock. Furthermore, it is proposed that the housing with a guide for the

Equipped with tumblers. This guide is used to position the tumblers, including guide and tumblers are designed to correspond to each other. In a preferred embodiment, this is the case when serving as a guide integrated into the ceiling of the housing mandrel. At the

Assembly of the lock housing, the mandrel positioned with it

according to the tumblers.

It is contemplated that the tumblers have apertures formed corresponding to the mandrel which provide a positive guidance for the tumblers with respect to pivotal movement about the mandrel. The fact that the keyhole opening is provided with side skirts, which serve as a guide for the key as a manipulation protection, they fulfill a dual function, in addition, the access to the tumblers is considerably more difficult.

Another variant of the invention provides that the tumblers have in the area provided for the insertion of the key opening for reducing the size of this opening. The object of the invention is also achieved according to a second, related to the key, variant in that the key bit has key levels on both sides, wherein the diameter of the key bit, based on the respective maximum protruding key stages, between 9.5 mm and 11 mm.

The coding of the key is thus formed in a particularly compact form, being analogous to a conventional double-bitted key on the key bit. The maximum diameter of the key bit is between 9.5 mm and 11 mm, where the maximum diameter is the distance that exists between the two or more on opposite sides of the key bit furthest protruding key levels. The provided for the insertion of the key opening in the lock housing and a door, which is assigned to this, so it can build very small, which significantly contributes to the increase in security, because

Aufsperrwerkzeuge would also have to build smaller and are much harder to handle. The measure of 9.5 mm corresponds to the minimum value given under static aspects, the dimension 11mm taking into account a factor of the specification that under safety criteria a measure of

100 mm ² must not be exceeded for such an opening. The key according to the invention is also advantageous insofar as the key bit has key stages on both sides and is therefore designed in the manner of a double bit. Thanks to the small dimensions of the beard, the key can easily fit into the key Tumblers are used, especially since no space for the otherwise present between the two halves of harvester Halmabschnitt is needed. Thus, the key according to the invention is particularly suitable to implement in addition to the closing and the function of initiating the key change.

In addition, it is provided that the key bit is formed integrally with a portion of the key blade. Thought in this context z. B. to a key with hooking mechanism, so a two-part stem, one part of the beard and its other part is assigned to the Reide. Both parts of the straw are then connected together via the hooking mechanism. The key bit and the corresponding section of the

Key shanks as a common component contribute significantly to the fact that a key with comparatively small dimensions still has the necessary stability.

Another advantage of the compact dimensions of the

Doppelbartschlüssels lies in the fact that access to more cost-effective

Manufacturing process is enabled. For example, it is envisaged that the consisting of key bit and Halmabschnitt unit in

Metal powder injection molding process is made. The comparatively small-sized beard, together with the stalk section to which it is assigned, can be produced in the metal powder injection molding process and therefore significantly faster or in fewer steps. The invention is characterized in particular by the fact that

Security lock is created that meets the highest security requirements and thus z. B. is particularly well suited for use in safe doors. The key provided for the closing function also undertakes the initiation of the conversion. A separate access for a tool for the conversion of the tumblers on the front or back of the lock can be dispensed with. A lock can thus already be delivered in Umstellzustand, especially since the key can be removed in the Umstellposition. The changeover process can only be completely implemented if the previously valid, suitable key is used. The nut takes on a part of the functions that otherwise have to exercise several components. This refers primarily to the conversion of the tumblers, both with respect to the activation of the changeover and the then to take place conversion of the castle to a new closure. The nut is almost the continuation of the

Key, she imitates him by acting as a kind of drive to open the

Lock or bolt and central unit also in view of the

Changeover mechanism of the tumblers serves. The nut has for this purpose on its front a closing and a Umstellzapfen. This is one

Multifunctional component in the shape of the nut created, which also makes in particular a separate Umstellschlüssel unnecessary in the future. Instead, the activation of the change is initiated by turning the key opposite to the actual opening direction.

Due to its compactness, the key according to the invention satisfies particularly stringent security requirements by proposing a double-bit key. This has on both sides key levels, with the maximum remote ends of opposing key levels 9 mm to 11.5 mm apart. The key according to the invention satisfies one hand, stability criteria and on the other hand builds very small, so that according to the opening behind the lock z. B. a safe wall also correspondingly small and thus can be made safer. Further details and advantages of the subject invention will become apparent from the following description of the accompanying drawings, in which a preferred embodiment with the necessary details and individual parts is shown. 1 shows a double-bitted key,

FIG. 2 shows the back of a nut,

FIG. 3 shows the front side of a nut, FIG. 4 shows the initiation of the conversion,

FIG. 5 the activation of Umstellwirbel and lock,

FIG. 6 shows the completed conversion,

7 shows the lock with inserted key,

FIG. 8 shows the lock after key turn of approximately 70 °,

9 shows the lock after key turn of about 545 °,

Figure 10 shows the lock after key rotation of about 180 ° and

11 shows a housing cover with a mandrel.

1 shows a part of a Doppelbartschlüssels 7, consisting of a portion 11 of the key blade 10 with the adjoining beard 12 at the end 43 of the straw 10. Of the various key stages of the beard 12 are some with the reference numeral 13, 14, 18, 56th , 57 and 58. Here are on the side 59 of the beard 12, the key level 14 and on the

opposite side 60, the key level 13 maximum out. The distance between the maximum in this embodiment prominent

Key steps 13 and 14 is between 9.5 mm and 11 mm. Different

expressed, the diameter of the key bit 12, based on the respective maximum protruding key stages - here the key stages 13 and 14 - is in the range of these dimensions, which are advantageous on the one hand under stability and on the other under safety criteria. The reference numeral 42, 42 ', this diameter is additionally illustrated. In Figure 2 is a nut 3 from its back 6 with the two central

Components Riegelmitnehmer 4 for activating the Umstellfunktion of the lock and Umstellzapfen 5 shown to change the tumblers. It can be seen here, as seen from the axis 45, that the locking cam 4 is positioned farther outward than the reversing pin 5. When viewed in the axial direction 45, the reversing pin 5 is further away from the plane of the nut 3 than the latter

Latch driver 4. When viewed in the insertion direction of the key from the front side 22, the nut 3 is shown in FIG. On the front 22, the backdrop 23 can be seen. The reference numerals 16 and 17 are used as the insertion aid for the key, not shown here, centering.

Simplified are now in Figures 4, 5 and 6, the mechanisms in

Related to the activation of the conversion of the lock to a new closure shown. It is advantageous that the activation of the conversion and their implementation can be done with a single key. This is denoted by the reference numeral 7 and in the illustration of Figure 4 already rotated in opposite directions to the normal lock opening in the context of the activation of the changeover. The Umstellzapfen 5 drives on the nut 3, symbolized by the arrow 46, the Umstellwirbel 20. The Umstellsperre 8 is in its normal position, a pivoting of the locking vortex 21 is blocked, the arm 47 of the Umstellsperre blocked the arm 48 of the locking vortex 21st

Activation of the Umstellwirbels 20 and thus in the wake of

Umstellsperre 8 is then carried out in the representation of Figure 5. The

Umstellsperre 8 is moved in the direction of arrow 9. The spring 15 of

Umstellsperre 8 serves to support the assembly on the housing wall of the castle. The locking peg 21 can now with his arm 48 in the

Umstellsperrenseitige bulge 49 or invade the Umstellsperre 8.

In the illustration according to FIG. 6, the blocking vortex 21 has then fallen in; the activation of the conversion is completed and the key 7 can be turned back to the basic position, not shown here.

In Figures 7 to 10, the conversion of the castle is shown on a new closure. In the illustration according to FIG. 7, the key 7 is shown in the insertion position. At the end facing away from the latch 29 26 of the housing 2 of the lock 1 is formed as a leaf spring 37 spring 32. The spring 32, 37 keeps the previously transported by the key in its zero position, here covered by the first tumbler 24, always in this position. The reference numerals 33 and 34 are provided two internals, the serve to reduce the size of the opening 35 for the key 7, to complicate the handling of manipulation tools.

The illustration according to FIG. 8 now shows the key 7 after it has been rotated by approximately 70 ° with respect to the position shown in FIG. The latch 29 is still in the closed position. The tumblers, here covered by the top tumbler 24, have fallen on the key 7 and sorted for the current closure. Reference numeral 27 designates an opening in the tumbler 24 which, in cooperation with a mandrel integrated in the housing cover, serves as a positive guide for the tumblers 24.

Shown in Figure 9 is a lock 1 after a turn of a total of about 135 °, the bolt 29 is in the open position, a change is not possible.

The changeover in the illustration according to FIG. 10 is activated by turning the key 7 counter to the opening direction by about 80 ° and back to the starting position. Subsequently, the key 7 is rotated further than in the normal lock opening to the stop (about 180 °) and can now be removed. A new key with appropriate coding can be used and the lock 1 can be closed. The conversion is complete.

Finally, FIG. 11 shows the ceiling 31 of a lock housing 2. In this ceiling 31, a mandrel 30 projecting perpendicularly from the ceiling 31 is integrated as a guide 19 for the tumblers, not shown here. In addition to the mandrel 30 is the opening 28 for the key together with two aprons 50, 51, which also serve as manipulation protection to the effect that the access is prevented from the outside to the tumblers, not shown here.

Claims

1. A safety lock (1) to be actuated with a double-bit key (7) with a plurality of tumblers (24) arranged in a lock housing (2), characterized

that the double - bitted key (7) as the sole means of conversion of

Tumblers (24) and to operate the locking mechanism is used.

2. Lock according to claim 1,

characterized,

in that the opening (35) provided for inserting the key (7) into the lock (1) has a diameter between 9.5 mm and 11 mm.

3. lock according to claim 1,

characterized,

in that the lock (1) has a nut (3) as a structural unit for converting the tumblers (24) and / or for controlling the closing function.

4. lock according to claim 1,

characterized,

in that the nut (3) is provided with a locking catch (4) serving to operate the bolt of the lock (1) and / or a lever for converting the lock

To tumblers (24) serving Umstellzapfen (5) is provided.

5. Lock according to claim 1,

characterized,

in that the latch driver (4) and the changeover pin (5) are arranged on the rear side (6) of the nut (3).

6. Lock according to claim 1,

characterized,

in that the locking catch (4), seen in the radial direction of the nut (3), is arranged transversely.

7. Lock according to claim 1,

characterized,

that the Umstellzapfen (5) is arranged substantially in the radial direction on the nut (3).

8. Lock according to claim 1,

characterized,

that the Umstellzapfen (5) in the axial direction before, and / or in the radial direction of the nut (3) seen behind the Riegelmitnehmer (4) is arranged.

9. lock according to claim 1,

characterized,

in that the nut (3) has a centering device (16, 17) serving as an insertion aid for the key (7).

10. Lock according to claim 1,

characterized,

that for activating the Umstellfunktion the lock (1) in a

Release position a slidably mounted in its longitudinal direction (9)

Changeover lock (8) is used.

11. Lock according to claim 10,

characterized,

that the Umstellsperre (8) is preceded by a Umstellwirbel (20) whose

Activation via the Umstellzapfen (5) takes place.

12. Lock according to claim 11,

characterized,

that the Umstellsperre (8) in its release position allows pivoting of a locking vortex (21).

13. Lock according to claim 1,

characterized,

that the tumblers (24) together have a spring component (32) associated therewith.

14. Lock according to claim 1,

characterized,

in that the housing (2) is equipped with a guide (19) for the tumblers (24).

15. Lock according to claim 14,

characterized,

in that a mandrel (30) integrated in the cover (31) of the housing (2) serves as guide (19).

16. Lock according to claim 15,

characterized,

the tumblers (24) have openings (27) formed corresponding to the mandrel (30).

17. Lock according to claim 15,

characterized,

in that the key opening (28) is provided with side skirts (50, 51) which serve as a guide for the key (7) as well as manipulation protection.

18. Lock according to claim 16,

characterized,

that the tumblers (52, 53, 54, 55) in the area of for the insertion of the

Key (7) provided opening (35) internals (33, 34) for reducing the size of this opening (35).

19 key (7) for actuating a security lock, with a Reide, a blade (10) and a key bit (12) on which the coding of the key (7) in the form of key stages (13, 14, 18) is arranged,

characterized,

that the key bit (12) on both sides key stages (13, 14, 18), wherein the diameter of the key bit (12), based on the respective maximum protruding key steps (13, 14), between 9.5 mm and 11 mm.

20. key according to claim 19,

characterized,

in that the key bit (12) is formed integrally with a section (11) of the key half (10).

21. A key according to claim 20,

characterized,

the assembly consisting of key bit (12) and section (11) is produced by the metal powder injection molding process.