DE10010363A1 - Lock with retainers in flat lock box has movable belt in box and retainers pivotably arranged around rotary axis, being adjustable in surface direction - Google Patents

Abstract

The lock with retainers (3) in a flat lock box (1) has a movable bolt (2) in the box and the retainers pivotably arranged around a rotary axis. The retainers are adjustable in their position relatively to the rotary axis in the direction of their surface. Adjustment occurs at right-angles to the displacement direction of the bolt. For pivoting the retainers a key is provided. The rotary axis of the retainers is formed by a nose structure (9) on a rotary component (11). The retainers are identically formed and the rotary component is accessible and rotatable from the exterior of the lock box.

Description

The invention relates to a recodable lock with surface tumblers in a substantially flat lock case,
wherein the lock has pivotable Zuhaltun conditions and
a key is provided for swiveling the tumblers,
a bolt is slidably arranged in the lock case.

Furthermore, the invention relates to a method for recoding a lock with tumblers,
wherein the tumblers in a lock case are brought into a predetermined position by means of a key about an axis of rotation
and by means of an actuating element which can be rotated by the key, a bolt is moved in the lock case,
the key can only be removed in one position and can be positioned in several positions.

Locks of the generic type are already known. By means of a Key that has a key bit with a different depth of cut th, thin plates, preferably metal plates, which as Tumblers are referred to a predetermined pivot point pivoted to different degrees. Each of the tumblers is with at least Provide at least one recess in which at least part of a lock intervenes. Locks of the generic type are with several of such tumblers, so that they are described as above a corresponding key must be pivoted in such a way in order align the recesses to each other so that the locking bolt or Engage parts of the locking bolt in this now uniform recess can. For example, if the key is lost To recode the lock to another key, others have to attitudes or the existing ones used in a different order become.

An already simplified solution is featured in EP 663 497 A2 beat; here a recodable lock is described, the several has spring-loaded tumblers, each around a swivel axis They are pivotable around and on their ent from the pivot axis distal ends are provided with openings for a leg therein a fence slat that is mounted so that they cross can move to the direction of movement of the lock bolt.

The fence slats are provided with a toothing, which over a fe the loaded coding device can be fixed in position. To one Recoding will be a recoding pin in the lock case actuated and pressed axially inward to achieve that at the  Turning the key, i.e. during the locking process, the coding direction no longer engages in the teeth of the fence slats and thus their fixation is removed.

The recoding pin remains in this pressed position because it is over a cone is held. After replacing the key a new key, which is possible after turning 180 °, are the tumblers during the closing process by the key teeth raised and take up a new position. At the same time, the Fence slats moved transversely to the transom, because the legs of the fence fence are still connected to the tumblers. Due to the white The encoding spigot will also be rotated further released and automatically comes in from its depressed position its starting position because it is spring-loaded.

The recoding takes place in that the position of the legs, the intervene in the tumblers, is changed relative to the bolt.

Such recodings are relatively expensive because a plurality of Parts are used to achieve the desired recoding chen.

Based on this prior art, the invention lies Task based on a recodable lock like this to form that the recoding is easier to handle and to Use parts can be minimized or simplified in order to reduce the cost to reduce.  

The solution to the problem by the invention is characterized in that the tumblers ( 3 ) are adjustable relative to the axis of rotation ( 8 ) in the direction of their surface in their position, the adjustment takes place substantially perpendicular to the direction of movement of the bolt ( 2 ).

The axis of rotation ( 8 ) of the tumblers ( 3 ) is formed by a nose ( 9 ) on a rotating element ( 11 ) which is accessible and rotatable from outside the lock case ( 1 ).

The rotary element ( 11 ) is positively connected to a locking element ( 7 ) which is equipped with a link which is acted upon by a guide element which is connected to the bolt ( 2 ). This ensures that the lock can be fitted to a new key without replacing the tumblers.

It is provided that the nose ( 9 ) fixes the tumblers ( 3 ) in their rotational position. The shape of the nose ( 9 ) is designed so that it engages in the corresponding notches ( 10 ) of the tumblers ( 3 ).

The notches ( 10 ) in the tumblers ( 3 ) are preferably designed as a row of teeth. The rotary element ( 11 ) can advantageously be pivoted with a commercially available screwdriver. However, an embodiment is also conceivable in which the rotating element ( 11 ) is pivoted using a commercially available hexagon key.

The locking element ( 7 ) is of particular importance; this is equipped with a backdrop into which a guide element ( 17 ), which is firmly connected to the bolt ( 2 ), engages. The backdrop is designed so that pivoting is only possible in a predetermined position of the bolt ( 2 ).

As a further training means for guiding the key ( 6 ) are provided, for example as a mandrel ( 15 ) and / or as an actuating element ( 3 ), wherein the mandrel ( 15 ) engages in the tip of the key ( 6 ) and the actuating element ( 5 ) is operatively connected to the key sel. The bolt ( 2 ) is moved by a driver ( 16 ) by the actuating element ( 5 ).

In order to prevent snagging, the tumblers ( 3 ) are designed according to training with beads that are executed differently in the adjacent tumbler. This ensures that the tumblers do not lie flat on one another, but are spaced apart in each of their pivoted positions. Elaborate deburring can thus be dispensed with.

Furthermore, due to their shape, the tumblers ( 3 ) are loaded with the same spring force in each of their swivel positions. The same applies to a defined deflection. That is, For example, when the tumblers (3), taking their attitudes in their neutral position under schiedliche layers relative to the lock case (1), confirmation by betae deflected in the direction of rotation, each of the Zuhaltun is gen (3) to an equally large displacement of a Angle β claimed with the same spring force; an end position determination of the tumblers via their restoring force by the spring ( 4 ) is thus excluded. This applies regardless of which setting position of the tumbler ( 3 ) was assigned during coding.

With a different position of the tumblers ( 3 ) in their zero position as described above relative to the lock case, it is excluded by design that all tumblers are in contact with the bolt ( 2 ). This is also to be justified kinematically, since no curve over all setting positions of the Tumblers ( 3 ) forms a constant distance from the bolt ( 2 ). Although it is possible to set up an approximation curve iteratively and thus minimize the distance difference, there is always a difference. It is therefore intended to use an elastic element, for example an elastomer profile, so that the positions in their longitudinal direction - based on the direction of movement of the bolt - are slightly displaceable. It is thus sicherge provides that with an externally acting displacement force on the bolt ( 2 ) the tumblers ( 3 ), which come first with the bolt ( 2 ) to the extent that they can dodge until the difference in length and all tumblers ( 3 ) come to rest on the transom. An unlocking attempt in which an attempt is made to swivel each individual tumbler into its unlocked position by pressing the bolt ( 2 ) against the tumblers ( 3 ) with a wire is effectively prevented since not only one tumbler ( 3 ) on the bolt ( 2 ) is present.

The method according to the invention for recoding a lock with spring-loaded tumblers has the following steps:

• a) turning the key from the zero position (a) to a first position (b), the tumblers ( 3 ) being pivoted about an axis of rotation ( 8 ) and the leg-like projections ( 12 ) of the bolt ( 2 ) in the Engage recesses ( 13 ) of the tumblers ( 3 ),
• b) pivoting the rotary element ( 11 ) through an angle (α), a nose ( 9 ) on the rotary element ( 11 ) from the recess ( 10 ) of the tumblers ( 3 ) being disengaged, the rotary element ( 11 ) with a locking element (7) is connected, which is connected via a connecting link by a guide member (17) with the latch (2) in combination and the pivoting only possible when these are the locking element (7) is free,
• c) further turning of the key ( 6 ) from the first position (b) to a second position (c); in this position (c) who both the bolt ( 2 ) and the tumblers ( 3 ) on the driver ( 16 ) of the actuating element ( 5 ) fixed in their position. The next step in the process
• d) Removing the first key can be done safely. On closing,
• e) Insert a second key, which is in the Differentiation between the first key and  
• f) turning the second key from the second position (c) to the first position (b), the tumblers ( 3 ) being displaced relative to the rotary element ( 11 ),
• g) pivoting the rotating element ( 11 ) into its starting position in order to bring the nose ( 9 ) of the rotating element ( 11 ) into the recess ( 10 ) of the tumblers ( 3 ).

The position of the pivot point of each tumbler ( 3 ) is thus changed, whereby a recoding, matching the new key, is achieved.

In the drawings, an embodiment of the invention is Darge poses.

Fig. 1 shows schematically a perspective view of a lock, in

Fig. 2 is a locked position of the lock box without lock shown

Fig. 3 shows the lock during a process step for recoding, and in

Fig. 4 is a longitudinal section through the lock,

Fig. 5 illustrates the three key positions

In Fig. 1, a lock is shown schematically in perspective, showing a lock case 1 with the key 6 inserted. Portions of the lock case are shown broken out to view the tumblers 3 , which always press against the actuating element 5 via the springs 4 . The bolt 2 is in the lock case 1 leads and can only be moved in its longitudinal axis when the attitudes 3 to the key 6 are brought into a predetermined position. Furthermore, the pivot axis 8 of the tumblers 3 , which is connected to a locking element 7 , can be seen in FIG. 1.

Fig. 2 shows an example of a tumbler 3 with a portion of the bolt 2 in its closed position. In this position, the key 6 can be removed. The rotary element 11 with the attached nose 9 , about which the tumblers 3 pivot, is in its starting position with a tooth of the row of teeth 10 in engagement. In this position of the bolt 2, the pivoting of the rotary element 11 is prevented, since this is prevented by a non-illustrated guide member which is engaged with the likewise not shown locking element 7 in compound.

The situation after step b or before step g is shown in FIG. 3.

The actuating element 5 and the key 6 have been rotated from the zero setting a to a first latching position b and thus the positions 3 , depending on the corresponding height of the key, have been pivoted by a corresponding angle about the axis of rotation 8 ver. The leg-like projections 12 of the bolt 2 engage in the recesses 13 of the tumblers 3 . In this position it is possible that the rotating element 11 can be pivoted by a predetermined angle α, the nose 9 , which is located on the Drehele element 11, is brought out of the teeth 10 of the tumblers 3 except for a grip. The actuation of the rotary element 11 is possible from outside of the lock case. In this position of the bolt 2 , the pivoting of the rotary element 11 is made possible because the locking element is released via the design of a backdrop (not shown).

After pivoting the rotating element 11 , a further twisting of the key 6 and the actuating element 5 from the first position b into a second position c is possible, which again corresponds to the starting position a, the key has thus been rotated through 360 ° and can can now be replaced by a second key, which differs from the first key in the version of the bar. Due to the backdrop in the locking element 7 in conjunction with the actuating element 5 connected via the bolt 2 , an unintentional turning back of the key 6 beyond the position b is prevented. An uncontrolled adjustment of the tumblers 3 is therefore excluded.

The new key 6 is now brought from the second position c to the first position b, the tumblers 3 being moved relative to the rotary element 11 . Due to the structural design of the actuating element 5 and the locking element 7 , it is neces sary to pivot the rotary element 11 by the angle α into its initial position in order to bring the nose 9 of the rotary element 11 into engagement with the toothing 10 before another Turning the key is possible. The axis of rotation 8 of each tumbler 3 has also been changed and recoded to the new key 6 .

The interaction of the individual parts is illustrated again in FIG. 4. Key 6 and actuator 5 lie on a common axis of rotation, the actuator 5 in the Schloßka most 1 is fixed. The latch 2 is moved via a driver 16 . A guide element 17 on the bolt 2 is in a backdrop of the locking element 7 in engagement. The locking element 7 is positively connected to the rotating element 11 , on which there is a nose 9 which engages in the toothing 10 of the tumblers 3 . The tumblers can be pivoted about this nose 9 , the contact edge of the nose 9 thus forms the axis of rotation 8 of the tumblers 3 . The rotating element 11 is also guided in the lock case 1 and is accessible from the outside.

Fig. 5 again illustrates the individual positions ac. Fig. 5a shows the starting position a. The first position b is shown in Fig. 5b ge, this is achieved after a predetermined rotation of the key and the actuating element 5 . The second position c is shown in FIG. 5c, this again corresponds to position a according to FIG. 5a. To make it easier to find the individual positions, detents can be provided via a spring-loaded ball or a mark can be made outside the lock.

With the lock according to the invention, it is possible with simple Ausge to recode from one key to another to take.  

Reference list

1

Lock case

2

bars

3rd

Tumbler

4

Locking spring

3rd

5

Bolt actuator

2

6

key

7

Locking element

8th

Swivel axis of the guard locking

3rd

9

nose

10th

Notches in tumbler

3rd

11

Rotating element

12th

Leg-like projections of the bolt

2

13

Recess in guard locking

3rd

14

Elastic element

15

mandrel

16

Carrier for bars

2

17th

Guide element
α twist angle of

7

Claims (21)

1. Recodable lock with flat tumblers ( 3 ) in an essentially flat lock case ( 1 ),
wherein the lock has tumblers ( 3 ) pivotable about an axis of rotation ( 8 ) and
a key ( 6 ) being provided for pivoting the tumblers ( 3 ),
wherein a bolt ( 2 ) in the lock case ( 1 ) is slidably arranged,
characterized by
that the tumblers ( 3 ) are adjustable in position relative to the axis of rotation ( 8 ) in the direction of their surface, the adjustment being carried out essentially perpendicular to the direction of displacement of the bolt. 2. Lock according to claim 1, characterized in that the axis of rotation ( 8 ) of the tumblers ( 3 ) is formed by a nose ( 9 ) on a rotary element ( 11 ). 3. Lock according to claim 2, characterized in that the rotating element ( 11 ) from outside the lock case ( 1 ) is accessible and rotatable. 4. Lock according to claim 2 or 3, characterized in that the rotating element ( 11 ) with a locking element ( 7 ), preferably as a form-fitting, is connected. 5. Lock according to claim 4, characterized in that the locking element ( 7 ) is equipped with a backdrop which is opened by a guide element which is connected to the bolt ( 2 ). 6. Lock according to one or more of claims 2 to 5, characterized in that the nose ( 9 ) fixes the tumblers ( 3 ) in their fulcrum position. 7. Lock according to one or more of claims 2 to 6, characterized in that the nose ( 9 ) is designed such that it is adapted to the shape of a notch ( 10 ). 8. Lock according to one or more of the preceding claims, characterized in that the notch ( 10 ) of the tumbler ( 3 ) is designed as a row of teeth. 9. Lock according to one or more of the preceding claims, characterized in that means are provided for guiding the key ( 6 ). 10. Lock according to claim 9, characterized in that the means a mandrel and / or an actuating element for guiding the key ment. 11. Lock according to one or more of the preceding claims, characterized in that the tumblers ( 3 ) are designed with beads. 12. Lock according to claim 11, characterized in that the beads of adjacent tumblers ( 3 ) are designed differently. 13. Lock according to claim 12, characterized in that the attitudes ( 3 ) are spaced apart by the beads in each of their pivoting positions. 14. Lock according to one or more of the preceding claims, characterized in that the tumblers ( 3 ) are acted upon by spring-loaded elements ( 4 ). 15. Lock according to one or more of the preceding claims, characterized in that the tumblers ( 3 ) are designed so that each tumbler ( 3 ) is acted upon with the same large deflection with an equal spring force. 16. Lock according to claim 15, characterized in that the attitudes ( 3 ) are designed so that each tumbler ( 3 ) with the same large deflection, regardless of the setting position of the attitude ( 3 ) about its axis of rotation ( 8 ) with an equally large spring force is applied. 17. Lock according to one or more of the preceding claims, characterized in that the tumblers ( 3 ) are acted upon by an elastic element ( 14 ) so that they can be displaced transversely to their pivoting direction. 18. Lock according to one or more of the preceding claims, characterized in that the actuating element ( 5 ) and the Verrie gelungselement ( 7 ) with a mutually corresponding Ku lisse are executed. 19. Method for recoding a lock with tumblers ( 3 ),
wherein the tumblers ( 3 ) in a lock case ( 1 ) by means of a key ( 6 ) about an axis of rotation ( 8 ) are brought into a predetermined position and
by means of a by the key ( 6 ) rotatable actuating element ( 5 ) a bolt ( 2 ) in the lock case ( 1 ) is pushed ver
wherein the key ( 6 ) can only be removed in one position and can be positioned in several positions (a, b, c),
characterized,
that the recoding has the following process steps:

• a) Turning the key from the zero position (a) to a first locking position (b), the tumblers ( 3 ) being pivoted about an axis of rotation ( 8 ) and the leg-like projections of the bolt ( 2 ) in the recesses of the tumblers ( 3 ) intervene,
• b) pivoting the axis of rotation ( 8 ) by an angle (α), a nose ( 9 ) on the axis of rotation ( 8 ) being disengaged from the toothing ( 10 ) of the tumblers ( 3 ), the axis of rotation ( 8 ) also a locking element ( 7 ) is connected, which is connected to the bolt ( 2 ) via a link and only allows pivoting if the latter releases the locking element,
• c) further turning the key from the first position (b) to a second position (c),
• d) removing the first key,
• e) inserting a second key, which differs in the bar version from the first key,
• f) turning the second key from the second position (c) into the first position (b), the tumblers ( 3 ) being displaced relative to the axis of rotation ( 8 ),
• g) pivoting the axis of rotation ( 8 ) in their initial position to bring the nose ( 9 ) of the axis of rotation ( 8 ) into the toothing ( 10 ) into engagement.

20. The method according to claim 19, characterized in that before Process step c) Process step b) must be carried out. 21. The method according to claim 19, characterized in that before Ver Step g), step f) must take place.