EP2085543B1 - Lock - Google Patents

Description

The present invention relates to a lock having a latch and an actuator operatively connected to each other so that the latch is movable from an extended position to a retracted position by actuation of the actuator and vice versa when the latch is in an unlocked condition. an actuator whereby the lock is shiftable between the unlocked state and a locked state, and a blocking member operatively connected to the actuator which prevents movement of the latch to the retracted position when the lock is in the locked state, wherein the blocking element comprises a blocking portion which engages in locking the lock in a free space, which is partially defined by a provided on the latch bolt or on an element connected to the latch element bearing area, wherein the blocking portion a n arranged to abutment against the contact area, wherein the abutment portion and the abutment portion obliquely to each other and wherein at least a part of the abutment portion comprehensive part of the blocking portion is also insertable into the space when the lock latch is between the retracted and the extended position ..

Locks of this type are used in particular for doors, but can also be used in windows or the like. Furthermore, these locks can be both conventional one-latch locks and, for example, three-latch locks or the like, which usually comprise a so-called main lock and one or more secondary locks. In a one-latch lock or a main lock of a multi-latch lock the actuator is usually formed by a pusher, while in a secondary lock, the actuator may be formed for example by a part of a drive rod or coupled to the Treibstrange control member.

In order to increase the security against burglary, the blocking element prevents the latch from being pressed back when the lock is in its locked state. The problem is, however, that the blocking element often can not develop its effect if the engaging in the strike plate lock latch before reaching its fully extended position already abuts the window or door frame and thus can not be fully extended. This case can occur, for example, if the existing in the lock catch area is not big enough. Since in this case the latch and the blocking element can not assume their predetermined position to each other, it is possible that the lock is not completely blocked and the blocking element can not be brought into its blocking effect ensuring position and thus the latch is not secured against pushing back.

EP 0 466 677 A2 discloses a lock according to the preamble of claim 1. A similar lock is in US 4,691,543 A disclosed.

It is an object of the present invention to provide a lock of the type mentioned, in which a locked back lock of the latch is reliably prevented when the lock, even if the latch can not be fully extended.

Starting from a lock of the type mentioned above, this object is achieved in that the blocking element and the actuator are held together by a defined predetermined force, wherein overcoming the defined predetermined force, the blocking element and the actuator are relatively movable. The defined predetermined force can be generated for example by a spring preload, by a latching, by a clamping connection or by a frictional connection. The blocking element and the actuator are thus not fixed and inseparable connected to each other, but can be moved relative to each other, for example, when locking the lock in not fully extended latch the contact section comes into contact with the contact area and prevents further movement of the blocking element by this contact becomes. In this case, the partially introduced into the free space blocking element remains in its position reached, while the actuator is moved in the position required for complete locking of the lock position.

Due to the oblique arrangement of the abutment portion of the blocking element and the contact area of the latch or connected to the latch element, it is possible to introduce the blocking element even when not fully extended latch in the space bounded by the investment area, wherein upon insertion of the investment area and the Anlageabschnitt due to the oblique arrangement approach each other more and more, until they preferably ultimately abut each other. If the latch is in its fully extended position, complete insertion of the blocking element into the free space is possible. However, if the latch is not in its fully extended position, then the blocking element can be at least partially inserted into the space due to the oblique arrangement, so that a back pushing the latch is reliably prevented by the partially introduced blocking element.

According to an advantageous embodiment of the invention, the abutment portion and / or the abutment area are formed in stages with abutment surfaces formed for abutment with the abutment area or the abutment portion. Optionally, only the contact section, only the contact area or both can be designed in stages. In particular, when at least a portion of the step surfaces extend substantially parallel to the contact portion or the contact area, it is achieved that upon pushing back of the lock latch, the forces occurring are directed substantially perpendicular to the step surfaces and thus no blocking forces the blocking element from its blocking position force components occur. In principle, however, at least a part of the step surfaces can also run obliquely to the contact section or the contact region. As a result, or even by a complete unestimated, oblique formation, a substantially continuous contact of the contact section Geabschnitts be achieved at the investment area at different intermediate positions of the latch.

According to another preferred embodiment of the invention, at least a part of the step surfaces are connected to each other by chamfers. Due to the run-on slopes, the lock catch is pushed even further into the extended position during movement of the blocking element, so that the lock catch may possibly assume its fully extended position or at least a further extended position.

Preferably, the blocking element is moved together with the actuator when the lock is switched with the lock bolt fully extended from the unlocked to the locked position or vice versa. When fully extended latch latch thus the blocking element and the actuator are always moved together to achieve a reliable locking of the latch in the locked state and release of the latch in the unlocked state. The movement of the blocking element is preferably carried out substantially perpendicular to the direction of displacement of the latch or the element connected to the latch.

Preferably, the blocking element and the actuator are thus in the unlocked position of the lock in a fully coupled position, while the blocking element and the actuator can be brought by the relative movement in a partially coupled position or in a mutually decoupled position.

According to a further advantageous embodiment of the invention, starting from the decoupled or the partially coupled position, the blocking element and the actuator are automatically brought into the fully coupled position when the lock is unlocked. For this purpose, in particular an end stop for the blocking element can be provided, by which a movement of the blocking element is limited when unlocking the lock. When starting at the end stop further movement of the blocking element is no longer possible, so that in a further backward movement of the actuator ultimately the blocking element and the actuator, after unlocking the lock, again assume their original position to each other in which they are completely coupled together.

According to a further advantageous embodiment of the invention, a spring element is provided by which the latch bolt is urged from the retracted position to the extended position. in principle It is also possible that, for example, a spring element is provided, which acts on the actuator or a latch and actuator connecting gear member, and the latch is moved when moving back the actuator to its initial position by a corresponding mechanical coupling in the extended position.

Further advantageous embodiments of the invention are specified in the subclaims.

Fig. 1

eine teilweise aufgerissene Darstellung einer Tür mit einem erfindungsgemäß ausgebildeten Schloss,

Fig. 2

ein erfindungsgemäß ausgebildetes Schloss im entriegelten Zustand mit vollständig ausgefahrener Schlossfalle,

Fig. 3

das Schloss nach Fig. 2 mit zurückgezogener Schlossfalle,

Fig. 4

das Schloss nach Fig. 2 im verriegelten Zustand,

Fig. 5

das Schloss nach Fig. 2 mit nicht vollständig ausgefahrener Schlossfalle während des Verriegelns,

Fig. 6

das Schloss nach Fig. 2 mit nicht vollständig ausgefahrener Schlossfalle im verriegelten Zustand,

Fig. 7

das Schloss nach Fig. 2 mit nicht vollständig ausgefahrener Schlossfalle während des Entriegelns.

The invention will be described in more detail below by means of embodiments with reference to the drawings; in these show:

Fig. 1

a partially torn view of a door with a lock formed according to the invention,

Fig. 2

an inventively designed lock in the unlocked state with fully extended latch bolt,

Fig. 3

the castle after Fig. 2 with retracted latch,

Fig. 4

the castle after Fig. 2 in the locked state,

Fig. 5

the castle after Fig. 2 with not fully extended latch during locking,

Fig. 6

the castle after Fig. 2 with not fully extended latch in the locked state,

Fig. 7

the castle after Fig. 2 with not fully extended latch during unlocking.

In the following figures, mutually corresponding elements are each designated by the same reference numerals even in different embodiments.

Fig. 1 shows a door 1 with a three-trap lock 2, which includes a main lock 3 and two secondary locks 4, which may be identical.

The main lock 3 comprises a pusher 5, via which in the usual way a latch 6 of a in Fig. 1 shown extended position can be moved to a retracted position by the pusher 5 is pivoted about a pusher 7 down. When returning to the starting position, the latch bolt 6 is moved in a known manner by spring force support again in the extended position.

The movement of the pusher 5 is transmitted in each case via a drive rod 8 to the secondary locks 4, the lock latches 9 have. The lock latches 9 are coupled via the drive rods 8 with the pusher 5 so that it moves in parallel with the latch bolt 6, that can be changed between a retracted position and an extended position.

The main lock 3 further comprises a lock cylinder 10, via which the three-latch lock 2 can be locked. Here are in the locked state of the three-trap lock 2, both the main lock 3 as also the secondary locks 4 locked. In the locked state of the main lock 3 and the secondary locks 4, the lock traps 6, 9 are each arranged in the extended position and blocked against pushing back into the retracted position. Furthermore, in addition to locking the door 1 rod exceptions 11 and, in particular on the main lock 3, locking bolt 12 or other locking elements may be provided. The control of the locking elements, that is the blocking of the lock latch 6, 9 and the extension of the locking bolt 12 and the rod exclusions 11 takes place in the usual way via locking bars 13 and provided within the main lock 3 and the secondary locks 4 lock transmission elements.

Furthermore, the invention will be described in more detail with reference to an embodiment which show the construction of a secondary lock. In principle, the invention can also be applied analogously to a main lock. The main difference lies in the fact that in a main lock a lock cylinder is present, via which the locking of the main lock is made directly, while the secondary locks starting from the lock cylinder of the main lock the locking takes place respectively via the locking bars.

In the Fig. 2 to 7 an embodiment of a lock 14 according to the invention is shown in six different positions. The lock 14 has a lock housing 15, of which only a lock cover 16 is shown in the figures, which is located in the lowest level of the drawing plane. The lock cover 16 comprises on its longitudinal side a perpendicular to the plane of the lock cover extending portion which forms a rear wall 17 of the lock housing 15. To form the lock housing 15 is a lock lid 16 corresponding, not shown in the figures, further counter lock cover provided, which can be connected to the lock cover 16 so that the individual subsequently described lock elements are arranged between the two lock covers.

In the central region of the lock 14, the lock catch 9 is arranged, which by two guide portions 18, 19, which are formed for example of characteristics in the lock cover 16, for moving according to a double arrow 20 of the in Fig. 2 illustrated fully extended position in the in Fig. 3 shown retracted position is performed. The guide portion 19 has at its rear end a 90 ° angled portion 21 which forms a rear end stop for the latch 9.

On the lock cover 16, a pin 22 is fixed, on which a trained as a spiral spring spring element 23 is attached. While a free end 24 of the spring element 23 is supported on the rear wall 17, the other free end 25 is formed longer and is located on a rear abutment portion 26 of the latch 9 so that it from the in Fig. 3 shown retracted position in the in Fig. 2 shown fully extended position is urged.

The displacement of the latch 9 according to the double arrow 20 is effected by control members, not shown, which can be actuated via the door handle 5 and the drive rods 8 coupled thereto.

At the rear region of the lock catch 9, an edge 27 facing the front end of the lock catch 9 is formed, which, when the lock catch 9 is extended, is arranged on a longitudinal side 28 of a flat, elongated actuator between the lock catch 9 and the lock cover 16 29 comes to the plant, whereby the extension of the lock latch 9 is limited.

The actuator 29 is mounted longitudinally displaceable in accordance with a double arrow 30 and acts on the one hand with provided on the lock cover 16, not shown guide elements together. On the other hand, the actuator 29 has a slot 31 into which engages a pin 32 fixed to the lock cover 16 and the counter lock cover for guiding the actuator 29.

At the two ends of the actuator 29 coupling portions 33, 34 are formed, which are formed for connecting the actuator 29 with the locking bar 13 and the rod exclusion 11. Furthermore, a blocking element 35 is attached to the upper end of the actuator 29, which comprises a blocking portion 48 with a contact portion 49. On the side facing the lock cover 16 side of the blocking element 35, a guide portion 36 is further provided in the form of a groove which cooperates with a formed on the lock cover 16 guide member 37 and upon movement of the actuator 29 according to the double arrow 30 a guided displacement of the blocking element 35 together ensured with the actuator 29.

The connection between the blocking element 35 and the actuator 29 via a trained as a leaf spring spring element 38 which is fixed with one end 39 in an opening 40 of the blocking element 35 and the other, free end 41 comprises a latching nose 42. The locking lug 42 engages behind a locking edge 43 formed on the longitudinal side 28 of the actuator 29, so that upon movement of the actuator 29 according to the lower half of the double arrow 30, the blocking element 35 is displaced together with the actuator 29. The actuator 29 and the blocking element 35 are in a completely coupled position.

Furthermore, the blocking element 35 has a stop 44 on which an end edge 45 of the actuator 29 comes into contact with a movement in accordance with the upper half of the double arrow 30, so that even with such a displacement of the actuator 29, the blocking element 35 together with the actuator 29th is moved.

On the lock cover 16, a pin 46 is provided which forms an upper stop for the blocking element 35. Both the pin 46 and the pin 32 each have a threaded bore, can be screwed into the screws for fastening the counter lock cover, not shown. Another attachment, such as a rivet connection is possible. In addition, if necessary, further connecting elements, for example, further pins may be provided.

In the following, the operation of the lock 14 designed according to the invention will be described with reference to FIGS Fig. 2 to 7 shown different states of the lock 14 described in more detail.

Fig. 2 shows the unlocked state of the lock 14, wherein the pusher 5 is in its horizontal position and the latch 9 is arranged in the fully extended position.

Upon actuation of the pusher 5 to open the unlocked door 1, the rotational movement of the pusher 5 is converted within the main lock 3 in a corresponding translational movement of the drive rod 8. This movement of the drive rod 8 is in turn implemented via not shown control members in a retraction of the latch 9, so that the Latch 9 ultimately the in Fig. 3 shown withdrawn position and the door 1 can be opened in the usual way.

When returning the pusher 5 to its original position, the latch 9 is in its in. Due to the spring force of the spring element 23 Fig. 2 shown completely extended position shifted until the formed in the rear region of the latch 9 edge 27 again comes to rest on the longitudinal side 28 of the control member 29.

When locking the main lock 3 on the lock cylinder 10, the corresponding rotational movement of the lock cylinder is converted into a translational movement of the locking bar 13, the movement of which via the coupling portion 33 a corresponding longitudinal displacement of the actuator 29 according to an arrow 47 (FIG. Fig. 4 ) causes the actuator 29, the in Fig. 4 has reached the position shown. Simultaneously, the blocking element 35 is due to the latching connection between the spring element 38 and the locking edge 43 of the actuator 29 also shifted in the direction of arrow 47 so that the abutment portion 49 comprehensive blocking portion 48 of the blocking element 35 in a free space 55 between the latch 9 and the rear wall 17 comes to rest, which is limited in the extension direction of the latch 9 by the contact area 26.

The abutment section 49 is of stepped design and comprises three step surfaces 50, 51, 52, which are connected to each other by run-on slopes 53, 54, so that the abutment section 49 in its entirety extends obliquely to the abutment region 26 of the lock catch 9. Due to the oblique course of the contact section 49, the blocking section 48 has a smaller width on its side facing the free space 55 than on its side facing away from the free space 55. While the two step surfaces 50, 51 run parallel to the contact region 26 of the latch 9, the step surface 52 is formed to extend obliquely thereto, but with a smaller pitch than the run-on slopes 53, 54.

Is the latch 9 in its fully extended position according to Fig. 4 Thus, the blocking portion 48 can completely penetrate into the free space 55, as in Fig. 4 is shown. In this position, the locking element 9 is prevented by the blocking element 35 from being pressed back when the lock catch 9 their abutment portion 26 to the step surface 52 of the abutment portion 49 and prevents a transverse displacement of the blocking element 35 by the guide member 37 and the rear wall 17 becomes.

If the latch 9 can not be fully extended, for example, due to a too small folding air gap, the free space 55 in the extension direction has a reduced inside width, as in FIG Fig. 5 is shown. Since the blocking portion 48 at the lower end due to the oblique course of the abutment portion 49 has a reduced width, despite the reduced clearance of the free space 55, a partial penetration of the blocking portion 48 in the free space 55 is possible. According to Fig. 5 For example, the blocking portion 48 can penetrate into the free space 55 until the rear upper edge of the latch 9 forming the upper end of the abutment region 26 comes into contact with the run-on slope 52.

In order to achieve a complete locking of the lock 14, the actuator 29 is moved further in the direction of the arrow 47. Since a further displacement of the blocking element 35 is not possible, the latching lug 42 of the spring element 38 is pushed back by the obliquely extending latching edge 43 against the spring bias, so that the actuator 29 moves relative to the blocking element 35 in the direction of the arrow 47 until it the in Fig. 6 achieved shown position corresponding to the locked position of the lock 14. Since in this position, the locking edge 43 is no longer engaged behind by the locking lug 42, the actuator 29 and the blocking element 35 are in a partially coupled position.

If the lock 14 is unlocked again, the actuator 29, starting from the in Fig. 6 shown position again according to an arrow 56 in the in Fig. 2 Position shown moved back. Since the blocking element 35 is braced due to the bias of the pressed back spring element 38 with the actuator 29, the blocking element 35 is taken with the actuator 29 until it comes to rest on the pin 46, as in Fig. 7 is shown. For complete unlocking of the lock 14, the actuator 29 is moved further in the direction of arrow 56 until it is in Fig. 2 reached shown position. In this case, the locking lug 42 of the spring element 38 engages behind the latching edge 43 of the actuator 29 automatically again, so that after the complete unlocking of the lock 14 again in Fig. 2 shown initial state is reached and the actuator 29 and the blocking element 35 are again in their fully coupled position.

Is at the in Fig. 7 shown position, the frictional force between the guide portion 36 and the guide member 37 is greater than between the locking lug 42 and the longitudinal side 28 of the actuator 29, so it is also possible that when shifting back the actuator 29 to the starting position, the blocking element 35 initially not with the actuator 29th is taken away, but in his in Fig. 6 remains shown position. However, as soon as the front edge 45 of the actuator 29 comes to rest on the stop 44 of the blocking element 35, the blocking element 35 is taken with the actuator 29 until it is the in Fig. 2 reached starting position reached.

LIST OF REFERENCE NUMBERS

1

door

2

Three traps Castle

3

main lock

4

In addition to locks

5

handle

6

latch

7

follower

8th

driving rod

9

Castle traps

10

lock cylinder

11

bar exclusions

12

safety catch

13

locking bars

14

(Side) Castle

15

lock housing

16

lock cover

17

rear wall

18

guide section

19

guide section

20

arrow

21

section

22

spigot

23

spring element

24

free end of the spring element

25

free end of the spring element

26

plant area

27

edge

28

long side

29

actuator

30

double arrow

31

Long hole

32

spigot

33

coupling portion

34

coupling portion

35

blocking element

36

guide section

37

guide element

38

spring element

39

End of the spring element

40

opening

41

free end of the spring element

42

locking lug

43

catch edge

44

attack

45

frontal edge

46

spigot

47

arrow

48

blocking portion

49

contact section

50

step surface

51

step surface

52

step surface

53

starting slope

54

starting slope

55

free space

56

arrow

Claims (12)

1. A lock having a lock striker plate (6, 9) and an actuation member (5) which are operatively connected to one another so that the lock striker plate (6, 9) can be moved from a moved out position into a retracted position and vice versa by actuating the actuation member (5) if the lock (3, 4, 14) is in an unlocked state; having an actuator (29) by which the lock (3, 4, 14) can be switched between the unlocked state and a locked state; and having a blocking element (35) which is operatively connected to the actuator (29) and by which a movement of the lock striker plate (6, 9) into the retracted position is prevented when the lock (3, 4, 14) is in the locked state, wherein the blocking element (35) comprises a blocking section (48) which, on the locking of the lock (3, 4, 14) engages into a free space (55) which is regionally bounded by a contact region (26) provided at the lock striker plate (6, 9) or at an element connected to the lock striker plate (6, 9), with the blocking section (48) comprising a connection section (49) formed for contact with the contact region (26), with the contact section (49) and the contact region (26) extending obliquely to one another and with at least one part of the blocking section (48) comprising a part of the contact section (49) also being able to be introduced into the free space (55) when the lock striker plate (6, 9) is between the retracted position and the moved out position,
   characterised in that
   the blocking element (35) and the actuator (29) are held together by a force which is preset in a defined manner; and in that the blocking element (35) and the actuator (29) can be moved relative to one another on overcoming the force which is preset in a defined manner.
2. A lock in accordance with claim 1,
   characterised in that
   the contact section (49) and/or the contact region (26) is formed in a stepped manner and has step surfaces (50, 51, 52) which are formed for contact with the contact region (26) or with the contact section (49) respectively.
3. A lock in accordance with claim 2,
   characterised in that
   at least some of the step surfaces (50, 51) extend substantially in parallel with the contact section (49) or with the contact region (26) respectively.
4. A lock in accordance with claim 2 or claim 3,
   characterised in that
   at least some of the step surfaces (52) extend obliquely to the contact section (49) or to the contact region (26) respectively.
5. A lock in accordance with claim 2, claim 3 or claim 4,
   characterised in that
   at least some of the step surfaces (50, 51, 52) are connected to one another by run-on chamfers (53, 54).
6. A lock in accordance with at least one of the preceding claims,
   characterised in that
   the blocking element (35) is moved together with the actuator (29) when the lock (3, 4, 14) is switched from the unlocked position into the locked position, or vice versa, with a completely moved out lock striker plate (6, 9).
7. A lock in accordance with at least one of the preceding claims,
   characterised in that
   the force which is preset in a defined manner is generated by a spring pre-load, by a latch connection, by a clamp connection or by friction locking.
8. A lock in accordance with at least one of the preceding claims,
   characterised in that
   the blocking element (35) and the actuator (29) are in a position completely coupled with one another in the unlocked position of the lock (3, 4, 14); and in that the blocking element (35) and the actuator (29) are brought into a partly coupled position or into a mutually decoupled position by the relative movement.
9. A lock in accordance with claim 8,
   characterised in that,
   starting from the decoupled position or from the partly coupled position, the blocking element (35) and the actuator (29) are automatically brought into the position completely coupled with one another when the lock (3, 4, 14) is unlocked.
10. A lock in accordance with at least one of the preceding claims,
    characterised in that
    an end abutment (46) for the blocking element (35) is provided by which a movement of the blocking element (35) is bounded on the unlocking of the lock (3, 4, 14).
11. A lock in accordance with at least one of the preceding claims,
    characterised in that
    a spring element (23) is provided by which the lock striker plate (6, 9) is urged from the retracted position into the moved out position.
12. A lock in accordance with at least one of the preceding claims,
    characterised in that
    the actuation member is configured as a handle (5) or as a control member which can be actuated via a handle (5).

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