EP3243981B1 - Lock - Google Patents

Description

The present invention relates to a lock with a plurality of locking elements, each of which can be moved between an extended locking position and a retracted release position.

In the previously known locks with a multiple lock, the additional locks are coupled to the lock gear provided for actuating the main lock in such a way that both a respective locking movement and a respective unlocking movement of the lock are transmitted directly to the additional locking elements. In the known locks, the connection of the additional locking elements to the connecting elements assigned to them is rigid, which means that if any additional locking element is manipulated, the remaining locking elements can always be moved as well. In addition, in the event of a malfunction of one of the locking elements, such as jamming of such a locking element, the complete lock is unable to function.

The pamphlets GB 2 168 748 A such as GB 1 508 838 A. already show locks with main and additional locking elements.

The invention is therefore based on the object of specifying a lock of the type mentioned at the outset, which ensures both greater protection against manipulation and more reliable locking.

According to the invention the object is achieved by a lock with the features of claim 1. Preferred embodiments of the lock according to the invention result from the subclaims, the present description and the drawing.

The lock according to the invention comprises a plurality of locking elements, each of which can be moved between an extended locking position and a retracted release position, the locking elements comprising a main locking element which can be actuated via a lock gear arranged in a lock case and at least one additional locking element. A respective additional locking element is biased by spring force into its extended locking position and can only be acted upon by a positive connection through the lock gear in the opening direction in which it is moved from its extended locking position into its retracted release position against the spring force.

Because of this design, the individual additional locking elements are decoupled both from the main locking element and from one another such that any manipulation of any additional locking element precludes a further locking element from being moved at the same time. The security against manipulation from outside in the event of an attempted break-in is thus increased. In addition, a more secure locking of the lock is achieved by decoupling the locking elements according to the invention. For example, a secure locking is guaranteed even if a few locking elements are defective and jam, for example due to a warped door leaf. Due to the decoupling of the locking elements according to the invention, the functionality of the remaining locking elements is retained even in the case of some defective locking elements.

According to a preferred practical embodiment of the lock according to the invention, a respective additional locking element is imposed with the lock gear either only on pull or only on thrust, so that it can be acted upon by the lock gear via a pulling movement or a pushing movement in the opening direction and there is a freewheel in the opposite direction.

Since a respective additional locking element can only be acted upon by the lock gear in the pulling direction or only in the pushing direction in order to be moved against the spring force in the opening direction while there is a freewheel in the opposite direction, the additional locking element is only connected to the lock gear in one direction, namely in the opening direction instead, which ensures the decoupling from the remaining locking elements.

If the main locking element can be actuated via a lock gear element, such as, in particular, a lock link or the like, then a respective additional locking element is preferably only applied to the lock gear element in a pulling or pushing manner.

While the main locking element can preferably be actuated both in the opening direction and in the closing direction via the lock gear element or lock link in question, a respective additional locking element is imposed with this lock gear element only in the opening direction, into which it can be acted upon either by a pulling movement or by a pushing movement.

A respective additional locking element can in particular be acted upon by the lock mechanism in the opening direction via a connecting element assigned to it.

In this case, the connecting element assigned to a respective additional locking element with the lock gear or the lock gear element is preferably only subjected to pull or only to thrust.

According to an expedient practical embodiment of the lock according to the invention, a respective additional locking element or the connecting element associated therewith for attachment with the lock gear is only provided with a recess on one side with a recess open in which the Lock gear or the lock gear element approach can be moved until it rests on the bottom of the recess.

For hooking a respective additional locking element or the associated connecting element with the lock gear only by train, a hook-slot connection is advantageously provided.

According to the invention, an additional locking element with an end region of the lock gear or lock gear element is only imposed on tension and a further additional locking element with an opposite end region of the lock gear or lock gear element is only imposed on thrust.

In addition to the main locking element, a plurality of additional locking elements can thus be actuated simultaneously via a lock gear element in question, such as a locking link or the like, again ensuring that the additional locking elements are decoupled both with respect to the main locking element and with one another in the manner described, i.e. can only be acted upon in the opening direction by the lock gear or the lock gear element and are preloaded by spring force in their locking position.

The two additional locking elements which can be acted upon in the opening direction by a common lock gear element can be connected to the lock gear or lock gear element in a plane or offset from one another.

A connection of the additional locking elements offset to the lock gear element has the advantage that there is free space for other components. According to a preferred practical embodiment of the lock according to the invention, one of the two additional locking elements or the connecting element associated therewith is cranked Intermediate element connected to the lock gear or the lock gear element.

The main locking element is preferably stored in the lock case and the additional locking elements each in its own lock case.

According to a further advantageous embodiment of the invention, the lock comprises at least one cross latch, which can be arranged adjacent to the main locking element. Additionally or alternatively, at least one cross latch can be arranged adjacent to the additional locking elements. The at least one cross latch each includes a first latch element and a second latch element, which are arranged so as to be pivotable relative to one another. Here, the first latch element and the second latch element of the cross latch can be supported in the pivoted-out state on opposite inner sides of a recess in the striking plate, in which the main locking element and / or the additional locking elements engage in the locked state and the latch elements in the pivoted-out state. This ensures that the main locking element and / or the additional locking elements are locked without a bolt even under preload.

The at least one cross latch can be designed, for example, as a divided cross latch, which comprises a first cross latch element arranged above the main locking element and / or the additional locking element and a second cross latch element arranged below the main locking element and / or the additional locking element.

In an alternative embodiment of the invention, a first cross latch can be arranged above the main locking element and a second cross latch can be arranged below the main locking element. Additionally or alternatively, can be above the respective additional locking element a first cross latch and a second cross latch are arranged below the respective additional locking element.

The lock can in particular also be designed as a panic lock for an escape and rescue route. The panic function in question can in particular ensure that when a handle such as a door handle or the like is pressed down, all locking elements and latches are retracted into the lock, as a result of which the previously closed door is immediately released.

Fig. 1

eine schematische Darstellung einer beispielhaften Ausführungsform eines erfindungsgemäßen Schlosses,

Fig. 2

eine schematische Darstellung der Anbindung von Zusatzverriegelungselementen an ein zur Betätigung eines Hauptverriegelungselements vorgesehenes Schlossgetriebeelement des Schlosses gemäß Fig. 1,

Fig. 3

eine vergrößerte Darstellung des Bereichs der Anbindung des nur auf Schub mit dem in Fig. 2 gezeigten Schlossgetriebeelement verhängten Zusatzverriegelungselements an das Schlossgetriebeelement,

Fig. 4

eine vergrößerte Darstellung des Bereichs der Anbindung des nur auf Zug mit dem in Fig. 1 gezeigten Schlossgetriebeelement verhängten Zusatzverriegelungselements an das Schlossgetriebeelement,

Fig. 5

eine schematische Darstellung eines erfindungsgemäßen Schlosses mit zwei Zusatzverriegelungselementen.

Fig. 6

eine schematische perspektivische Darstellung einer beispielhaften weiteren Ausführungsform eines erfindungsgemäßen Schlosses, und

Fig. 7

eine schematische Vorderansicht des erfindungsgemäßen Schlosses aus Fig. 6.

The invention is explained in more detail below on the basis of exemplary embodiments with reference to the drawing; in this show:

Fig. 1

1 shows a schematic illustration of an exemplary embodiment of a lock according to the invention,

Fig. 2

a schematic representation of the connection of additional locking elements to a lock gear element provided for actuating a main locking element of the lock according to Fig. 1 ,

Fig. 3

an enlarged view of the area of the connection of only on thrust with the in Fig. 2 Lock gear element shown additional locking element imposed on the lock gear element,

Fig. 4

an enlarged view of the area connecting the train only with the in Fig. 1 Lock gear element shown additional locking element imposed on the lock gear element,

Fig. 5

is a schematic representation of a lock according to the invention with two additional locking elements.

Fig. 6

is a schematic perspective view of an exemplary further embodiment of a lock according to the invention, and

Fig. 7

a schematic front view of the lock according to the invention Fig. 6 .

The 1 to 7 show a schematic representation of exemplary embodiments of a lock 10 according to the invention with a plurality of locking elements 14, 14A, 48, 50, each of which can be moved between an extended locking position and a retracted release position. In addition, the lock 10 can be provided with a locking cylinder 20 and a follower 22 (cf. Fig. 1 and 5 ).

The lock 10 can, for example, be designed as a purely mechanical, self-locking lock and be equipped with a panic function, the lock 10 being able to be unlocked from one side at any time by actuating a handle, while on the other side the lock can only be opened via the locking cylinder 20 . However, the lock 10 can, for example, also be equipped with a split follower 22 which can be actuated electromagnetically or electromechanically. It is therefore possible to decouple the handle on one side of the lock from the opening mechanism, which means that access to a secure area can be controlled. The lock 10 can, for example, also be actuated by a motor.

The locking elements 14, 14A, 48, 50 comprise a main locking element 14, 14A and additional locking elements 48, 50 which can be acted upon via a lock gear 24 arranged in a lock case 12, in particular both in the locking direction and in the unlocking direction.According to the invention, a respective additional locking element 48, 50 is in by spring force its extended locking position is biased and only in the opening direction, in which it is moved against its spring force from its extended locking position to its retracted release position, can be acted upon by the lock gear 24 via a positive connection. The additional locking elements 48, 50 are thus only moved into their extended locking position by spring force. Due to the lock gear 24, they can only be acted upon in the opening direction against the spring force. The additional locking elements 48, 50 are consequently decoupled from the main locking element 14, 14A and from one another in such a way that in the event of manipulation of one of the additional locking elements 48, 50 it is prevented that at the same time a further locking element is also moved in the opening direction.

How especially out Fig. 1 , 5 , 7 and FIG. 8 can also be seen, the main locking element 14, like an auxiliary latch 44, is mounted in the lock case 12.

As with the 2 to 4 To this end, a respective additional locking element 48, 50 can be applied to the lock gear 24 either only on pull or only on thrust, so that it can be acted upon by the lock gear 24 via a pulling movement or a pushing movement in opening direction 26 and in the opposite direction Freewheel is present.

In the present case, the main locking element 14, 14A can be actuated via a lock gear element 28, such as, in particular, a lock link or the like, and a respective additional locking element 48, 50 is only applied to the lock gear element 28 in a pulling or pushing manner, so that this lock gear element 28 only moves it in Pull direction or only in the push direction and thus only in the opening direction 26 can be acted upon.

As with the 2 to 4 it can be seen that a respective additional locking element 48, 50 can be acted upon by a connecting element 30, 32 assigned to it by the lock gear element 28 in the opening direction 26. This is assigned to a respective additional locking element 48, 50 Connection element 30, 32 imposed with the lock gear element 28 only on train or only on thrust.

As especially with the help of Fig. 3 It can be seen that a respective additional locking element 50 or the connecting element 32 associated therewith for being hung with the lock gear element 28 can only be provided with a recess 34 on one side, in which a recess 36 assigned to the lock gear element 28, until it rests on the floor 38 the recess 34 is displaceable.

On the other hand, a hook-elongated hole connection can be provided for pulling a respective additional locking element 48 or the connecting element 30 assigned to it with the lock gear element 28 (see FIG. Fig. 4 ), in the present case, for example, the lock gear element 28 is provided with a hook 40.

As especially with the help of Fig. 2 It can be seen that an additional locking element 48 with an end region of the lock gear 24 or lock gear element 28 can only be applied in tension and a further additional locking element 50 with an opposite end region of the lock gear 24 or lock gear element 28 only in thrust. The two additional locking elements 48, 50 can be connected to the lock gear 24 or the lock gear element 28 in one plane or offset from one another.

In the latter case, one of the two additional locking elements 48, 50 or the connecting element 30, 32 assigned to it can be connected via a cranked intermediate element 42 (cf. Fig. 2 and 4th ) be connected to the lock gear 24 or the lock gear element 28, in the present case, for example, the connecting element 30 assigned to the additional locking element 48 is connected to the lock gear element 28 via such a cranked intermediate element 42. The slot 46 is that previously mentioned Hook-slot connection provided in the illustrated embodiment in the intermediate element 42. As already mentioned, the lock gear element 28 is provided with the hook 40 which interacts with this elongated hole 46.

As with the Fig. 5 It can be seen that the additional locking elements 48, 50 can be accommodated in lock boxes 54, 56 which are arranged on both sides of extensions of a faceplate 52 connected to the lock box 12, the lock boxes 54, 56 each having an opening for the relevant additional locking element 48, 50 are provided. This means that the door in question can also be locked at the top and bottom. In the illustrated embodiment, the additional locking elements 48, 50 are designed as hooks and, in the extended locking position, each engage in recesses, not shown, of a striking plate, not shown.

Advantageously, the lock 10 can also comprise at least one cross latch 15, 15A, 15B with two latch elements 16, 16A, 16B, 18, 18A, 18B arranged on opposite sides of the main locking element 14, 14A (cf. Fig. 1 , 5 , 6 and 7 ). The main locking element 14, 14A and the cross latch elements 16, 16, 1618, like the auxiliary latch 44, are mounted in the lock case 12. At least one cross latch 15, 15A, 15B of this type ensures that the main locking element 14, 13A is free from jamming even under preload.

How from Fig. 1 and 5 can also be seen, the cross latch 15 is designed in the exemplary embodiment shown as a divided cross latch, which comprises a first cross latch element 16 arranged above the main locking element 14 and a second cross latch element 18 arranged below the main locking element 14. Here, the first cross latch element 16 and the second cross latch element 18 in the pivoted-out state are supported on opposite inner sides of the recess in the striking plate, into which the main locking element 14 engages in the locked state.

In an exemplary embodiment of the invention, not shown, the additional locking elements 48, 50 designed as hooks are each replaced by a bolt-latch combination, which comprises an additional locking element 48, 50 designed as a slide and the divided cross latch 15 with two cross latch elements 16, 18. Here, the first cross latch element 16 is arranged above the associated additional locking element 48, 50 and the second cross latch element 18 is arranged below the associated additional locking element 48, 50.

How from 6 and 7 Furthermore, in the alternative embodiment shown, a first cross latch 15A with two cross latch elements 16A, 18A is arranged above the main locking element 14A, and a second cross latch 15B with two cross latch elements 16B, 18B is arranged below the main locking element 14A. How from 6 and 7 can also be seen, the first cross latch 15A and the second cross latch 15B are arranged mirror-symmetrically to a central transverse axis QA of the locking element 7. This means that the two cross latches 15A, 15B are each at the same distance from the locking element 14A.

How from 6 and 7 It can also be seen that the first latch element 16A of the first cross latch 15A and the first latch element 16B of the second cross latch 15B are arranged mirror-symmetrically to the central transverse axis QA of the locking element 7. In addition, the second latch element 18A of the first cross latch 15A and the second latch element 18B of the second cross latch 15B are also arranged mirror-symmetrically to the central transverse axis QA of the locking element 14A. The first latch elements 16A, 16B can be supported with a respective stop surface on a first inner side of the not shown recess in the striking plate, and the second latch elements 18A, 18B can be supported with a respective stop surface on a second inner side of the not shown recess in the striking plate. As a result of this arrangement, the two cross latches 15A, 15B can advantageously be brought into both by means of support points arranged above and below the locking element 14A Reduce opening directions of preload forces, so that locking element 14A remains centered in the recess of the striking plate, not shown, even when preload forces are active, and safe movement of locking element 14A is possible in the event of panic.

In an exemplary embodiment of the invention, not shown, the additional locking elements 48, 50 designed as hooks are each replaced by a bolt-latch combination, which comprises an additional locking element 48, 50 designed as a slide and two cross latches 15A, 15B, each with two cross latch elements 16A, 18A, 16B , 18B. Here, the first cross latch 15A is arranged above the associated additional locking element 48, 50, and the second cross latch 15B is arranged below the associated additional locking element 48, 50.

The lock 10 can in particular also be designed as a panic lock for an escape and rescue route. A corresponding panic function can in particular be used to ensure that all locking elements and latches are retracted into the lock 10 by actuating a handle, such as a door handle, so that the previously locked door is immediately released.

Reference list

10th

lock

12th

Lock case

14, 14A

Main locking element

15, 15A, 15B

Cross trap

16, 16A, 16B

first cross trap element

18, 18A, 18B

second cross trap element

20th

Locking cylinder

22

Trigger nut

24th

Lock gear

26

Opening direction

28

Lock gear element

30th

Fastener

32

Fastener

34

Recess

36

approach

38

ground

40

hook

42

Intermediate element

44

Auxiliary trap

46

Long hole

48

Additional locking element

50

Additional locking element

52

Faceplate

54

Lock box

56

Lock box

QA

Central transverse axis

Claims (15)

1. Lock (10) having a plurality of locking elements (14, 14A, 48, 50) which are each able to move between an extended locking position and a retracted release position, wherein the locking elements (14, 14A, 48, 50) comprise a main locking element (14, 14A), which can be actuated by way of a lock mechanism (24) which is arranged in a lock case (12), and at least one additional locking element (48, 50) which is preloaded by spring force into the extended locking position thereof and which can only be loaded by the lock mechanism (24), by way of a positively locking connection, in the opening direction (26), in which it is moved, counter to the spring force, from the extended locking position thereof to the retracted release position thereof,
   characterized in that an additional locking element (48) is subjected only to tension with an end region of the lock mechanism (24) or lock mechanism element (28), and a further additional locking element (50) is subjected only to shear with an opposite end region of the lock mechanism (24) or lock mechanism element (28).
2. Lock according to Claim 1,
   characterized in that a respective additional locking element (48, 50) is subjected either only to tension or only to shear with the lock mechanism (24), such that it can be loaded in the opening direction (26) by the lock mechanism, by way of a tensile movement or a shear movement, and freewheels in the opposite direction.
3. Lock according to Claim 1,
   characterized in that the main locking element (14, 14A) can be actuated by way of a lock mechanism element (28), such as, in particular, a lock slotted guide or the like, and a respective additional locking element (48, 50) is subjected only to tension or only to shear with the lock mechanism element (28).
4. Lock according to at least one of the preceding claims, characterized in that a respective additional locking element (48, 50) can be loaded in the opening direction (26) by the lock mechanism (24), by way of a connecting element (30, 32) which is assigned to said additional locking element.
5. Lock according to Claim 4,
   characterized in that the connecting element (30, 32) which is assigned to a respective additional locking element (48, 50) is subjected only to tension or only to shear with the lock mechanism (24) or the lock mechanism element (28).
6. Lock according to at least one of the preceding claims, characterized in that a respective additional locking element (50) or the connecting element (32) assigned thereto, for the purposes of being subjected only to shear with the lock mechanism (24), is provided with a cutout (34) which is open on one side and in which a shoulder (36) which is assigned to the lock mechanism (24) or to the lock mechanism element (28) can be displaced until it bears against the bottom (38) of the cutout (34).
7. Lock according to at least one of the preceding claims, characterized in that, for subjecting a respective additional locking element (48) or the connecting element (30) assigned thereto only to tension with the lock mechanism (24), a hook-and-slot connection is provided.
8. Lock according to at least one of the preceding claims, characterized in that the two additional locking elements (48, 50) are connected, in a plane, to the lock mechanism (24) or the lock mechanism element (28) .
9. Lock according to at least one of the preceding claims, characterized in that the two additional locking elements (48, 50) are connected, with an offset in relation to each other, to the lock mechanism (24) or the lock mechanism element (28).
10. Lock according to Claim 9,
    characterized in that one of the two additional locking elements (48, 50) or the connecting element (30, 32) assigned thereto is connected by way of a cranked intermediate element (42) to the lock mechanism (24) or the lock mechanism element (28).
11. Lock according to at least one of the preceding claims, characterized in that the main locking element (14, 14A) is mounted in the lock case (12) and the additional locking elements (48, 50) are each mounted in a dedicated locking box.
12. Lock according to at least one of the preceding claims, characterized in that at least one cross latch (15, 15A, 15B) is arranged adjacent to the main locking element (14, 14A) and/or to the additional locking element (48, 50), wherein the at least one cross latch (15, 15A, 15B) in each case comprises a first latch element (16, 16A, 16B) and a second latch element (18, 18A, 18B), which are arranged so as to be able to pivot in relation to each other.
13. Lock according to Claim 12,
    characterized in that the at least one cross latch (15) is embodied as a divided cross latch which comprises a first cross latch element (16), which is arranged above the main locking element (14) and/or the additional locking element (48, 50), and a second cross latch element (18), which is arranged below the main locking element (14) and/or the additional locking element (48, 50) .
14. Lock according to Claim 12,
    characterized in that a first cross latch (15A) is arranged above the main locking element (14) and/or the additional locking element (48, 50) and a second cross latch (15B) is arranged below the main locking element (14) and/or the additional locking element (48, 50).
15. Lock according to at least one of the preceding claims, characterized in that it is embodied as a panic lock for an emergency escape path.

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