EP1671001B1 - Lock - Google Patents

Abstract

The invention relates to a lock (10) comprising a key-operated lock cylinder (12) having a cam (14), an element (16) carrying out a translatory motion, and a transmission device (18) for transmitting the motion of the cam (14) onto the element (16) in order to bring the element into the closed position or the open position by means of a device. The transmission device (18) comprises a first toothed wheel (20) that is arranged so as to be rotatable about the lock cylinder (12) and together with the cam (14). The aim of the invention is to improve a lock of the above-mentioned kind in such a manner that it allows for a reliable operation with simple technical means, that has small dimensions and that can be produced at low costs. For this purpose, the first toothed wheel (20) is recessed. Said recess receives the cam (14) and is dimensioned so as to allow for the lock cylinder (12) to be put through during assembly. The transmission device (18) comprises at least one additional toothed wheel (22) that intermeshes with the first toothed wheel (20) and is disposed on at least one first shaft (24) whose axis (W) extends at an angle to the lock cylinder axis. The device translates the rotational motion of the first shaft (24) into a translatory motion of the element (16).

Description

The invention relates to a lock with a lock cylinder which can be actuated with a key and has a driving tongue, with a push movement exporting element and with a transmission device for transmitting the movement of the driving tongue on the element to this by means of first and second means in the closed position or to move the open position, wherein the transmission means comprises a first gear rotatably disposed about the lock cylinder and rotatable with the driver tongue.

Such locks are eg from the document EP 7395 A1 known. They are used, inter alia, to lock window or door leaf with the frame. However, these locks or the transmission devices of these locks on a variety of gears. In most cases, there are up to seven gears, which are necessary for the movement of the bolt and are used. In addition, this lock often has too large backset. Although it is quite possible that the first gear is a fully closed gear. However, the assembly is relatively expensive.

As a result, this lock is quite expensive to manufacture, but also prone to failure due to the complexity.

The invention is therefore an object of the invention to provide a lock of the type mentioned, which ensures technically simple means always safe operation and at the same time has small dimensions and is inexpensive to produce.

This object is achieved according to the invention in a lock of the type mentioned by the features of the characterizing part of claim 1.

The essence of the invention is that, in the simplest embodiment, only three elements can be used to transmit the motion of the driver tongue to the element. In this case, the rotational movement induced by the driver tongue is transmitted to the first gear, which meshes with the at least second gear. Due to the movement of the first gear and the second gear and thus the shaft is set in rotation, which in turn leads to a movement of the device. Since the at least one shaft is arranged transversely to the lock cylinder axis, very small backset dimensions can also be realized for the first time.

It may happen, however, that after coming out of the meshing engagement of the first gear with the second gear this second gear has a position such that a re-immerse or come into meshing engagement at least made difficult, since the corresponding teeth of the first and second gears are no longer in the designated position.

On the one hand, this can be circumvented by providing the outwardly facing surface of the driver tongue with a toothing matching the first toothed wheel. For this purpose, however, it is necessary to subject this surface of Mitnehmerzunge still an additional processing for working out of the teeth.

If this is not desired, it is advantageous if the shaft is provided with a third gear or spindle device which has a greater distance from the second gear than the recess in the region of the free end of the driving tongue and also with the first gear combs. Since the distance between the second and third gear is greater than the recess in the region of the outer edge, meshes always one of the second and third gears with the first gear.

There are many possibilities for the design of the device for converting the rotational movement of the first shaft into a pushing movement of the element. An advantageous embodiment is given by the fact that the device has a spindle arranged on the shaft, which is in engagement with a transmission member of the element. Due to the rotation of the spindle, the transmission member, which is connected to the element, forcibly guided and also forcibly moved, so that results in a linear movement of the element.

Although there are several möglickeiten the design of the transmission element, it is advantageously provided according to a development of the invention that the transmission member insertable in an opening of the thrust movements element insertable or one of the element or latch projecting and integrally formed with this nose is.

Of course, this nose can be arranged on almost all areas of the bolt. A particularly compact design results, however, when the nose is arranged at the inner end of the element or bolt.

According to one embodiment of the invention, it is provided that the device has an outer thread arranged on the shaft, which is in engagement with a threaded element arranged on the element.

It is possible that the threaded element consists of externally on the element angeodneten grooves or of an internal thread arranged in the element.

A particular embodiment is given by the fact that the device consists of a shaft arranged on the thread, which is able to engage in corresponding, arranged on the element recesses.

Furthermore, it is advantageous if the device has a disk arranged on the shaft, which engages with a second spindle arranged on the element.

In contrast to the embodiment shown above, here the spindle is arranged on the thrust movement exporting element, and this spindle is rotated by the disc in rotation.

In all embodiments described so far, the first wave is arranged virtually next to the lock cylinder. However, in order to be able to provide even smaller mandrel dimensions, it is advantageous if a second shaft is present, which is arranged transversely to both the first shaft and the lock cylinder axis and has at least the further fourth gear, that meshes with the second gear. This second shaft can then be arranged above the lock cylinder such that the second shaft then extends above the lock cylinder.

Of course, the orientations of the individual parts can also be chosen differently.

According to one embodiment of the invention, it is provided that the element is an approach, a coupling piece of a push rod or a bolt.

There are many ways to shape the teeth of the gears. But it is advantageous if the first gear has a helical toothing and the second or third gear is formed in a helical shape.

Of course, the shaft can be arranged in almost all areas around the lock cylinder with any but suitable orientations. A particularly simple arrangement but is given when the shaft is approximately perpendicular to the axis of the lock cylinder.

In order to be able to induce two opposing linear movements either selectively or simultaneously with one transmission device, it is advantageous if the device is designed to transmit two counter-rotating linear movements. But this can be done e.g. be made possible by the fact that the spindle has two opposite slopes. But it is also possible that the external thread has two opposing slopes. At these components with the opposite slopes then two elements can be articulated to perform the thrust movement and thus moved.

But it is also possible that a further device is arranged on the shaft. This can be done simultaneously two pushing movements transmitting elements or bars are set in a linear movement.

So that a displacement of the linear movements is possible, it is advantageous if at least one further transmission device is present. It is possible to drive in or out of two elements in the same direction. However, this can also be done in opposite directions when the device of the second transmission device has a corresponding slope.

Furthermore, it is advantageous if the lock cylinder is a commercially available cylinder. Of course, other lock cylinders can be used as long as they have the corresponding Mitnehmerzunge.

Depending on the application, it is advantageous if the lock is made of metal or plastic or a combination thereof.

Fig.1

eine teilweise geschnittene Seitenansicht eines Schlosses gemäß eines ersten Ausführungsbeispiels;

Fig.2

eine teilweise geschnittene Seitenansicht des Schlosses gemäß Fig.1 gesehen entlang des Pfeiles A von Fig.1;

Fig.3

eine der Fig.1 ähnliche teilweise geschnittene Seitenansicht ohne Schließzylinder;

Fig.4

eine Seitenansicht eines Schlosses gemäß eines zweiten Ausführungsbeispiels;

Fig.5

eine Seitenansicht eines Schlosses gemäß eines dritten Ausführungsbeispiels;

Fig.6

eine Seitenansicht eines Schlosses gemäß eines vierten Ausführungsbeispiels;

Fig.7

eine Seitenansicht eines Schlosses gemäß eines fünften Ausführungsbeispiels; und

Fig.8

eine Seitenansicht eines Schlosses gemäß eines sechsten Ausführungsbeispiels.

Further advantages and features of the invention will become apparent from the following description of several embodiments and from the drawings, to which reference is made. Show it:

Fig.1

a partially sectioned side view of a lock according to a first embodiment;

Fig.2

a partially sectioned side view of the castle according to Fig.1 seen along the arrow A of Fig.1 ;

Figure 3

one of the Fig.1 similar partially sectioned side view without lock cylinder;

Figure 4

a side view of a lock according to a second embodiment;

Figure 5

a side view of a lock according to a third embodiment;

Figure 6

a side view of a castle according to a fourth embodiment;

Figure 7

a side view of a lock according to a fifth embodiment; and

Figure 8

a side view of a castle according to a sixth embodiment.

Based on Fig.1 to 8 Now several embodiments of a castle 10, 10 ^I , 10 ^II , 10 ^III and 10 ^IV described in more detail. The same reference numerals designate the same elements, unless otherwise stated.

The lock 10, 10 ^I , 10 ^II , 10 ^III , 10 ^IV and 10 ^V includes a lock cylinder 12 which is operable with a key. By actuation of the key a Mitnehmerzunge 14 is moved on a circular path to effect with a transmission device 18 is a linear movement of a thrusting motion transmitting element 16 in its closed position or its open position. In the described embodiments, this push-motion transmitting element is a bolt 16. However, this element 16 may also be the approach or coupling piece of a push rod or a similar movement-transmitting element.

The transmission device 18 consists in all embodiments of a rotatable about the lock cylinder 12 and rotatable with the Mitnehmerzunge 14 first gear 20. This first gear 20 meshes with at least one second gear 22 which is disposed on a shaft 24. In the opposite end to the second gear 22, the shaft 24 is provided with means 26, 28; 34, 36; 38, 40; 42, 44; 46, 48 provided, which puts the latch 16 in a linear or pushing movement.

As in the Fig.1 to 3 can be seen, in the first embodiment, the device consists of a shaft 24 arranged on the spindle 26, in which a transmission member 28 of the bolt 16 engages.

Although in the Fig.1 to 3 not shown, the spindle 26 may have two mutually opposite slopes. This is on the one hand advantageous if the linear movement or the exit of the element or bolt 16 should be designed freely selectable. On the other hand, it is also possible to move simultaneously two elements or bars 16 opposite each other linear.

However, these opposing linear movements can also be ensured by the fact that a further spindle 26 is arranged on the shaft 24. But this is also in the FIGS. 1 to 3 not shown.

In order to be able to vary the positions of the extension of the element or of the bolt 16 even further, it may be provided to arrange at least one further transmission device 18. Of course, the orientation of the individual transmission devices 18 is freely selectable. This again applies to all embodiments.

In the first embodiment, the transmission member is a projection 28 projecting from the latch 28, which is arranged at the inner end of the bolt 16. In this case, therefore, the nose 28 is formed integrally with the latch 16. But it is also possible, which is not shown, to form the transmission member 28 as a separate part, which can then be inserted into a corresponding opening of the element or latch 16.

The first gear 20 has a recess 30 in which the Mitnehmerzunge 14 is received. In addition, the recess 30 has such a dimension on, the lock cylinder 12 can be pushed through this recess 30 during its assembly.

If, as shown, the lock cylinder is a commercial profile cylinder 12, the recess 30 has approximately the shape of the outer contour of the profile cylinder 12. However, all commercial cylinders and even special forms thereof can be used.

Although it is possible, which is not shown, to provide the outwardly facing surface of the driving tongue 14 with a first gear 20 matching teeth. This serves to always ensure a meshing of the second gear 22 with the first gear 20 and the corresponding teeth of the Mitnehmerzunge 14 despite the presence of the recess 30. For this purpose, however, the Mitnehmerzunge 14 must be subjected to further processing.

A simpler solution is in the FIGS. 1 to 4 . 6 and 8th shown. This consists of a third gear 32 or according to FIG. 8 from a spindle device 32 ', which is arranged on the shaft 24 to the second gear 22 with a distance which is greater than the recess 30 in the region of the free Mitnehmerzunge 14. Of course, the third gear 32 is arranged so that it the first gear 20 meshes. Since this distance between the second and third gears 22 and 32 or between the second gear 32 and the spindle device 32 'is greater than this clear width of the recess 30, there is at least one of the two gears 22 or 32 and the second gear 22 or the spindle device 32 'in mesh with the first gear 20.

Of course, the first to third gears 20,22 and 32 may have any suitable shapes. In the illustrated embodiments of the lock 10, a helical toothing was selected for the first gear 20. The second and third gears 22 and 32 each have a bevel gear shape, with the second and third gears 22 and 32 being disposed on the shaft 24 so that their respective smaller end surfaces are aligned with each other.

The arrangement of the shaft 24 with respect to the lock cylinder can of course be arranged depending on the desired location of engagement of the bolt 16 with the frame. In the first embodiment, the shaft 24 is arranged approximately perpendicular to the axis of the lock cylinder 12, approximately parallel to the vertical axis of the lock cylinder 12th

As a result, the bolt 16 is moved in the embodiment shown in the direction of the vertical axis of the lock cylinder 12 in the desired position.

Is operated by means of a key, not shown, the lock cylinder or profile cylinder 12 and turned the key, the Mitnehmerzunge 14 comes into engagement with the first gear 20 in the region of the recess 30. Thus, the first gear 20 is rotated, and the rotational movement of the first gear 20 is transferred to the meshing with this second and third gears 22 and 32. Since the second and third gears 22 and 32 are of course non-rotatably connected to the shaft 24, the spindle 26 is also rotated by the rotation of the second and third gears 22 and 32, which is also rotatably connected to the shaft 24. In this case, the nose 28 is in engagement with the spindle groove of the spindle 26 and is forcibly guided with the movement of the spindle 26 in the embodiment shown depending on the direction of rotation of the shaft 24 upwards or downwards. Since the nose 28 is in this case made in one piece with the latch 16, therefore, the bolt 16 also performs a linear movement upwards or downwards.

The in the FIGS. 4 to 7 illustrated second to fourth embodiments will now be described essentially with respect to their differences from the first embodiment.

The Figure 4 shows a lock 10 ^I , in which the means for implementing the rotational movement of the first shaft 24 in a pushing movement of the element 16 from an arranged on the shaft 24 external thread 34 which is in engagement with a member 16 arranged on the threaded element 36. According to Figure 4 this threaded element 36 consists of grooves 38 which mesh with the external thread 34. The remaining parts of this castle 10 ^I are identical to those of the first embodiment, so that a detailed re-description is omitted.

If now in the second embodiment, the first gear 20 is set in rotation, the shaft 24 and thus also the external thread 34 rotates. Due to this rotation of the external thread 34, the grooves 38 engaged with the external thread 34 become depending on the direction of rotation of the shaft 24 forcibly guided upward or downward according to the drawing.

This in Figure 5 illustrated third embodiment differs not only in the nature of the device, but also with respect to the transmission device 18. This third embodiment has a second shaft 50 which is arranged transversely to both the first shaft 24 and the lock cylinder axis S. This second shaft 50 has at least one fourth gear 52, which meshes with the second and third gear 22 and 32, respectively. At the in Figure 5 illustrated third embodiment, the second shaft 50, a fifth gear 54, which also meshes with the first gear 20 and the fourth gear 52 has a greater distance than the inside diameter of the recess 30 is. As with the first two embodiments can be dispensed with the fifth gear 54 when the measures listed in these embodiments are taken. As in the second embodiment, the third embodiment according to Figure 5 an external thread 34. In contrast to the second embodiment, however, the element 16 is provided with an inner thread 40 arranged in a bore into which the external thread 34 engages. However, the generation of the linear or pushing movement of the element 16 follows in a similar manner as in the second embodiment.

The fourth embodiment is in Figure 6 shown. This fourth embodiment has certain similarities with respect to the means for implementing the rotational movement of the shaft 24 in the linear or pushing movement of the element 16. The peculiarity here is that in the shaft 24 only a single thread 42 is formed, which is able to engage in corresponding arranged on the element 16 recesses 44.

The remaining parts of this castle 10 ^III but again agree with the first and second embodiments, so that is dispensed with a detailed description.

At the in Figure 7 the fifth embodiment shown, the device consists of a shaft 24 arranged on the disc 46, which is in engagement with a member 16 arranged on the second spindle 48. Due to the high frictional force between the disk 46 and the second spindle 48 to be ensured in this embodiment, rotating the disk 46 also rotates the second spindle 48, forcing it into linear motion. Of course, the extending portion of the element 16 can be made in one piece with the second spindle 48 or as an extra part.

The remaining parts of this castle 10 ^IV correspond to those of the third embodiment of the castle 10 ^II , so that will be omitted here again detailed description.

In FIG. 8 a sixth embodiment of a lock 10 ^{V is} shown, which differs from the first embodiment only in that instead of the third gear 32, the spindle device 32 'is present. For the rest, reference is made to the description of the first embodiment.

It is expressly understood that the described embodiments are not intended to be limiting. Although not explicitly shown in the figures, it is perfectly possible to use all devices with all transmission gears or transmitting parts.

As the material for the lock 10 metal or plastic or a combination thereof can be selected.

According to the invention thus an extremely compact and simple lock 10 is given, which is not only easy to manufacture, but also always works safely.

LIST OF REFERENCE NUMBERS

10

Lock

12

Lock cylinder, cylinder

14

actuator tongue

16

Pushing motion transmitting element, tie

18

transmission direction

20

1st gear

22

2nd gear

24

wave

26

1st spindle

28

Transmission link, plug-in part, nose

30

recess

32

3rd gear

32 '

spindle device

34

external thread

36

threaded element

38

groove

40

inner thread

42

thread

44

recess

46

disc

48

2nd spindle

50

2nd wave

52

4th gear

Claims (19)

1. Lock (10) having a lock cylinder (12) which can be actuated with a key and has a driver tongue (14), having an element (16) performing a pushing movement and having a transfer device (18) for transferring the movement of the driver tongue (14) to the element (16) in order to displace this element by means of first and second devices (26, 28; 34, 36; 42, 44; 46, 48) into the locking position and into the open position, wherein the transfer device (18) has a first toothed wheel (20) which is rotatably disposed about the lock cylinder (12) and can be rotated with the driver tongue (14), and wherein the first toothed wheel (20) has an opening (30) in which the driver tongue (14) is received and is of a size such that the lock cylinder (12) can be inserted therethrough during assembly, characterised in that the transfer device (18) has at least one second toothed wheel (22), wherein either the second toothed wheel (22) meshes with the first toothed wheel (20) or a further toothed wheel (52) meshes with the first and second toothed wheel, and wherein the second toothed wheel (22) is disposed on at least one first shaft (24), the axis (W) of which extends transversely to the lock cylinder axis (S), and that the first devices (26; 34; 42; 46) are disposed in a non-rotatable manner on the first shaft (24) and are in engagement with the second devices (28; 36; 44; 48) disposed on the element (16) in such a way that the first devices (26; 34; 42; 44) convert the rotational movement of the first shaft (24) into a pushing movement of the element (16).
2. Lock as claimed in claim 1, characterised in that the first shaft (24) is provided with a third toothed wheel (32) or a spindle device (32'), which toothed wheel or spindle device is at a distance from the second toothed wheel (22) which is greater than the size of the opening (30) in the region of the free end of the driver tongue (14) and also meshes with the first toothed wheel (20).
3. Lock as claimed in claim 1, characterised in that the device has a spindle (26) which is disposed on the shaft (24) and is in engagement with a transfer member (28) of the element (16).
4. Lock as claimed in claim 3, characterised in that the transfer member is an insert part which can be inserted into an orifice in the element transferring the pushing movements or is a lug (28) protruding from the element or bolt (16) and formed as one piece therewith.
5. Lock as claimed in claim 4, characterised in that the insert part or the lug (28) is disposed on the inner end of the element or bolt (16).
6. Lock as claimed in claim 1, characterised in that the device has an outer thread (34) which is disposed on the shaft (24) and which is engagement with a threaded element (36) disposed on the element (16).
7. Lock as claimed in claim 6, characterised in that the threaded element consists of channels (38) disposed on the outside of the element (16) or of an inner thread (40) disposed in the element (16).
8. Lock as claimed in claim 6 or 7, characterised in that the device consists of a thread turn (42) which is disposed on the shaft (24) and which can engage in corresponding openings (44) disposed on the element (16).
9. Lock as claimed in claim 1, characterised in that the device has a disc (46) which is disposed on the shaft (24) and which is in engagement with a second spindle (48) disposed on the element (16).
10. Lock as claimed in any one of claims 1 to 9, characterised in that a second shaft (50) is provided which is disposed transversely to both the first shaft (24) and also to the lock cylinder axis (S) and comprises at least the further fourth toothed wheel (52) which meshes with the second toothed wheel (22).
11. Lock as claimed in any one of claims 1 to 10, characterised in that the element is a shoulder, a coupling piece of a push rod or a bolt (16).
12. Lock as claimed in any one of claims 1 to 11, characterised in that the first toothed wheel (20) has helical toothing and the second, third or fourth toothed wheel (22, 32, 52) is formed in the manner of a bevel wheel.
13. Lock as claimed in any one of claims 1 to 12, characterised in that the first and/or second shaft (24, 50') extends approximately perpendicular to the axis of the lock cylinder (12).
14. Lock as claimed in any one of claims 1 to 13, characterised in that the device (26, 28; 34, 36; 38, 40; 42, 44; 46, 48) is arranged for the transfer of two oppositely directed linear movements.
15. Lock as claimed in any one of claims 1 to 14, characterised in that a further device (26) is disposed on the shaft (24).
16. Lock as claimed in any one of claims 1 to 15, characterised in that at least one further transfer device (18) is provided.
17. Lock as claimed in any one of claims 1 to 16, characterised in that the lock cylinder is a commercially available cylinder (12).
18. Lock as claimed in any one of claims 1 to 17, characterised in that the outwardly directed surface of the driver tongue (14) is provided with toothing which matches the first toothed wheel (20).
19. Lock as claimed in any one of claims 1 to 18, characterised in that it consists of metal or synthetic material or a combination thereof.

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