EP1279783A1 - Locking device - Google Patents

Abstract

The security lock system, for a vehicle door, has a cylinder lock (20) operated by a key (21), with transmission rods (30) between the lock and the lock mechanism (22). The rotating unit (24) at the cylinder lock and the rotating unit (27) at the lock mechanism have a crank action on their axes (25,28), with crank pins (29) for the rods, so that a rotation at the cylinder lock is converted into a swing and translatory movement at the lock mechanism.

Description

The invention relates to a locking device, in particular for motor vehicle doors with a lock cylinder to be actuated by a key, with a lock mechanism for locking and unlocking the door and with a transmission part between the lock cylinder and lock mechanism, in this case a rotating part with the lock cylinder and with the lock mechanism connected to which the transmission part attacks. Such designs are already known. A double Bowden cable is provided between the two rotating parts, through which rotation of the lock mechanism occurs when the cylinder rotates. The exact manufacture and assembly as well as the adjustment of the deflection rollers for the Bowden cable is complex.

The object of the present invention is to design a locking device of the type mentioned at the outset in such a way that it is easy to use, but in particular it is economical to manufacture and install.

This object is achieved in that the transmission part is rod-shaped that both the Locking cylinder associated rotating part and the rotating mechanism associated with the lock mechanism is designed in a crank-like manner with an axis of rotation and with at least one crank arm that the rod-like transmission part is arranged on the crank pin; here, when the rotating part of the locking cylinder rotates, the transmission part performs both a pivoting movement and a translational movement on, in which the rotating part of the lock mechanism is also movable. With such a design, the exact distance between the locking device and the lock mechanism can be bridged. In addition, the design and assembly can be carried out inexpensively, since a mounting is reliably ensured by attaching the transmission rod to the rotating part. The production itself is also easy because on the one hand the rotating part can be easily coupled with the lock cylinder, and on the other hand easily with the lock mechanism. The rod-like transmission part also allows the distance between the locking device and the lock mechanism to be kept exactly. In order to obtain a precise starting and resetting arrangement during the closing or opening process, it is recommended that at least one of the rotating parts of the locking cylinder and / or locking mechanism is loaded with a spring which turns the rotating part back into an initial position when released.

It is particularly advisable to provide the transmission part with a slot-like opening in which the crank arm of the one rotating part engages. In this way, it is possible, for example, to achieve a rotation angle of + 90 ° degrees for the locking cylinder, but nevertheless a secure closure or opening can be achieved by this measure when the rotary movement of the one rotating part is initiated.

In a special embodiment of the invention, the rotating part has a double bearing, in this case the transmission part is arranged between the two bearing points. This double bearing point achieves an exact rotatability of the turned part, moreover an exact guidance of the transmission rod, this also ensures that any forces acting on the transmission rod are safely intercepted.

In a special exemplary embodiment of the invention, the rotating part has two rod-like transmission parts, in this case a crank pin carries the one transmission part and a second crank pin directed in exactly the opposite direction carries the second transmission part, the two crank pins on the rotating part being at an angular distance apart in the axial direction. This arrangement allows the second rotating part to be carried as soon as the first rotary movement is initiated. When the other rotary movement is initiated from a starting position, the second rotary part follows the first rotary part. It is particularly favorable here that the torque transmission is hardly dependent on the angle function, since the starting pivot point is selected such that a uniform transmission is possible, since the lever arm with which the rod is moved with respect to the rotating part hardly changes with regard to the force transmission. In a particularly simple design, the crank pins are arranged on an anchor-like intermediate piece. This anchor-like intermediate piece is arranged in a U-shape, the transmission rod then being arranged on the U-leg on one side, while the second transmission part is arranged on the other leg on the other side.

Again, it is ensured that a safe adjustment, which is only slightly dependent on the torque, is created, and at the same time, such parts can easily be produced by injection molding.

In a particular embodiment, the transmission rod comprises a bend in its longitudinal direction. The invention can also be used when the axes of the lock mechanism and the lock cylinder are not parallel to each other, but intersect, which enables precise alignment, on the one hand to be able to move the lock mechanism when the lock cylinder rotates, even if it does is not parallel to the first axis. The lock cylinder axis and the lock axis must form one plane.

The size of the bend allows the slope with which the two axes run to be adjusted or aligned from the outset.

The bend is advantageously in the region of the elongated hole recess of the transmission part. As a result of this measure, the crank pin slides in the slot opening and can thus move the transmission rod at an angle to the lock cylinder axis during a translational movement. In order to obtain a quick assembly between the crank pin and the rod-like transmission part, it is advisable to fix the transmission part to the rotating part with a snap connection. A simple latching movement already ensures that the rod is fastened between the two rotating parts, in this case it is particularly advantageous if a spherical section is provided as a crank pin for mounting the transmission part on the rotating part, on which the transmission rod can be clipped on with a corresponding cup-shaped recess. Again, a secure mounting and easy assembly is guaranteed.

In a special embodiment of the invention, a pivoting rotary lever is arranged on the rotating part of the lock mechanism carries the second crank pin for the transmission part, here the pivot lever is both rotatable and tiltable, stops being provided on the rotating part to limit the rotational movement. Such a design allows the pivoting rotary lever to carry out a movement before the actual rotating part of the lock mechanism carries out the rotating movement. The direction in which the rotating part is to rotate later is predetermined by pivoting the rotating part, the rotating part of the lock mechanism with the locking cylinder being rotatable as soon as the pivoting rotary lever comes against the stops. During a rotary movement, the pivoting lever shortens the effective length between the two rotating parts in such a way that it is ensured that the rotating part of the lock mechanism is only moved in the direction emphasized by the rotary movement of the locking cylinder.

Fig. 1

in schematischer Darstellung in Seitenansicht Schließzylinder und Schlossmechanismus,

Fig. 2 bis 4

die einzelnen Stellungen des Übertragungsteiles,

Fig. 5

im Schnitt ein weitere Ausführungsbeispiel mit zwei Übertragungsstangen,

Fig. 6

in perspektivischer Darstellung zwei Übertragungsstangen an einer U-förmigen ankerartigen Halterung,

Fig. 7 bis 9

die verschiedenen Darstellungen des Übertragungsmechanismus bei zwei Übertragungsstangen,

Fig. 10

in Seitenansicht zwei Übertragungsstangen im Schnitt,

Fig. 11

im Seitenschnitt eine Übertragungsstange mit Abbiegung und Ausnehmung,

Fig. 12 bis 15

in schematischer Darstellung die Schließvorrichtung 19 mit einem Schwenkdrehhebel.

The subject matter of the invention is shown in the drawing in several exemplary embodiments, namely:

Fig. 1

a schematic representation in side view of the lock cylinder and lock mechanism,

2 to 4

the individual positions of the transmission part,

Fig. 5

on average another embodiment with two transmission rods,

Fig. 6

a perspective view of two transmission rods on a U-shaped anchor-like holder,

7 to 9

the different representations of the transmission mechanism with two transmission rods,

Fig. 10

side view of two transmission rods in section,

Fig. 11

in the side section a transmission rod with bend and recess,

12 to 15

in a schematic representation, the locking device 19 with a pivoting rotary lever.

1, the locking device is shown schematically. A mounting wall 31 is provided. The locking cylinder 20 with its rotating part 24 is fixed to this fastening wall. The locking cylinder can be rotated by means of a key 21. As it moves, it also rotates the rotating part 24. As can be seen, this rotating part is designed like a crank. The axis of rotation 25 of the rotating part 24 coincides with the lock cylinder axis 32.

The rotating part 24 comprises a turntable 48 which merges into a crank arm 36 on which the crank pin 26 is provided. This crank pin 26 engages in a transmission part 30, so that when the rotary part rotates, the transmission part swivels.

The lower rotating part 27 is also mounted in the housing wall 31. It is connected via a transmission paddle 23 to the lock mechanism 22 in such a way that when the rotating part 27 rotates, the Transfer paddle also rotates and moves the bolt or latch of the lock.

It should be stated here that the transfer paddle compensates for any axis offsets between the axis of rotation 28 and the axis 33 of the lock device by the type of mounting of the transfer paddle. When the lower rotary part 27 is rotated about the axis of rotation 28, the rotary movement is transmitted to the lock mechanism 22 in any case.

The rotating part 27 comprises a turntable 49 which merges into a crank arm 36, in which the crank axis 29 engages, which is arranged on the transmission rod 30. It should also be mentioned here that the rotating part 27 or the rotating part 24 is loaded with a spring (not shown), which makes it possible to reset the position shown after each movement. This spring allows the rotating part to be turned on both sides. Nevertheless, the starting position can be set exactly.

2 shows a front view of the schematically illustrated locking device. It is in the starting position. The rotation of the locking cylinder 20 causes the upper turntable 48 to move, the crank axis 26 sliding in the slot-like recess 34 up to the upper end. With a further rotation, the lower rotary part 27 is then also moved via the rod 30 and can thus actuate the lock mechanism.

4 shows when the lock mechanism is actuated. Through the return spring, not shown, when the key is released the lower rotating part and thus the upper rotating part moved into its starting position.

It should also be mentioned here that the slot-like recess 34 means that the torque transmission for opening or closing the lock is only slightly dependent on the angle of rotation, since the first section of the rotary movement takes place without the lower rotary part.

It should also be pointed out that, starting from FIG. 3, the upper part 24 must be rotated by approximately 90 ° so that the closing process of the lock mechanism is completed, as shown in FIG. 4.

Finally, it should be mentioned that the rotational advance, as shown in FIG. 3, is approximately 45 ° degrees. The course of rotation is designed in such a way that when the transmission part is inclined and the end of the rotational advance, the transmission part seen in side view no longer covers the axis of rotation.

In the embodiment according to FIGS. 5 and 6, the locking device consists of two transmission rods 30.

The locking device itself is shown schematically in a housing 35. This housing has a receiving chamber for the lock cylinder 20. The upper rotating part is supported at both ends (as a double bearing). In the center of the rotating part there is a crank arm 36, radially to the axis of rotation, on which the crank pin 26 is provided, in this case the crank pin is present twice, namely on the one hand pointing towards the locking cylinder and on the other hand precisely on the other side.

As shown in FIG. 6, the two crank pins are offset from one another by a certain angular amount in the axial direction of the locking cylinder. The crank pin is provided with a knob-like part 39. A shell 40 of the transmission rod is clipped onto this knob 39.

The lower rotating part is approximately U-shaped. It is also rotatably supported at its two ends in the housing, in which case one end carries the transfer paddle 23. The lower rotating part 27 is shown with a U-shaped rotary section 41, the ends of the legs carrying the axis of rotation, while the ends provided on the central web Each leg wear a lateral arm-like arm 42, which carries the crank pin 29 in the form of a rotary knob 39.

When the locking cylinder rotates, one of the transmission rods 30, as seen in FIGS. 5 and 6, is moved up, while the other rod 30 is moved downward. With the opposite movement, the movement is exactly the opposite. In this case it is important that the torque transmission is also relatively uniform.

It should also be pointed out that the return spring 37 is shown in FIG. 5. This spring is designed as a wing spring and has the effect that the position shown in FIG. 5 or 6 is retained when the key 21 is released or adjusts itself automatically.

7, 8 and 9, the different positions of the locking mechanism are shown. When the upper rotating part 24 is rotated, the crank pin 26 is moved with the two transmission rods 30, and at the same time the U-shaped one also becomes immediately at the beginning of the movement Section 21 of the lower rotating part 27 is moved into the position shown in FIG. 8.

When the lock cylinder is released, the position according to FIG. 7 would again be reached from FIG. 8.

With another rotation in the counterclockwise direction of the upper rotating part 24, the position according to FIG. 9 is then adopted, in this case the position according to FIG. 8 serves to release the lock part of the lock device, while the position according to FIG. 9 includes the locking of the lock of the lock device.

It should be noted here that these three figures are only shown schematically. The exact locations are omitted.

In the exemplary embodiment according to FIG. 10, the housing 35 and the transmission rods 30 have a bend 43, the bend here being perpendicular to the axis of rotation of the lower rotating part or of the U-shaped rotating section.

During a rotary movement, the upper two rod parts are moved downward and at the same time the rotary movement of the lower rotary section 41 is initiated, so that the rods exert a pivoting movement with respect to the upper fastening.

In this exemplary embodiment, it is again possible that, if the axes 32 of the locking cylinder and the locking mechanism lie at an acute angle, the opening and closing movement is nevertheless possible. 11 is again a Bend 43 is provided on the transmission rod, in this case the bend has a recess 44 in which the rotary knob-like part 39 of the crank axle engages.

Here, too, the two axes of the locking device and locking cylinder intersect. The slot-like recess 44 ensures that when the locking cylinder is rotated by a first amount, the lower rotating part remains in the position shown here. Only when the knob 39 is at the upper end of the slot-like recess 34 is the rotary movement and thus the opening or closing of the lock initiated. It is important that the first part of the rotary movement of the upper rotating part runs without rotating the lower part, that the rod swings either to the left or to the right depending on how it is rotated, so that with a further movement the lock device into yours The closed or open position can be transferred, as the embodiment according to FIGS. 2, 3 and 4 shows.

As can be seen, the rotating part 24 is provided with a return spring 37, which makes it possible for the starting position to be set after each opening operation and release of the key.

In the exemplary embodiment according to FIGS. 12 to 15, a locking device is shown schematically, in which in turn the axis of the locking cylinder and the axis of the locking device are arranged at an angle to one another.

The transmission rod 30 is fastened in a clip-like manner to the upper rotating part 24. A knob-like fastening point 50 is provided in the center of the lower rotating part 27. A pivot lever is attached to this knob-like attachment point 45 clipped on. This pivot lever is both rotatable and pivoted away from the rotating part.

Upon initiation of the rotation, see FIG. 13, the transmission rod is pivoted, as a result of which either the pivot lever 45 would have to perform a rotational movement or else it would pivot away from the lower rotating part, as shown in FIG. 14. With a further rotation of the upper turntable 48, the pivoting projection finally strikes against stops 46 and 47 and cf. FIG. 15, and can then also move the lower rotating part. The swivel lever ensures that when the rotary movement is initiated, the lower rotary part is carried along exactly from FIG. 12.

The starting point can in turn be set automatically by a spring (not shown) when the locking device is released. With a movement then in the clockwise direction, the lower rotating part would also rotate in the clockwise direction, but in this case the pivoting movement of the pivoting insert would initially occur until the pivoting lever would finally hit the stop 47.

As already mentioned, the illustrated embodiments are implementations of the invention, for example. This is not limited to this. Rather, various changes and applications are still possible. In particular, the return spring could be provided both on the upper and on the lower rotating part. The transmission part can consist of a sheet metal strip or of a plastic injection molded part. The invention also consists in the fact that the case of a rod solution can be used to rotate the cylinder lock by ± 90 °.

LIST OF REFERENCE NUMBERS

19

closing device

20

lock cylinder

21

key

22

lock mechanism

23

transmission paddle

24

Turned part above

25

axis of rotation

26

crank pin

27

Turned part below

28

axis of rotation

29

crank pin

30

transmission rod

31

housing wall

32

Lock cylinder axis

33

the lock axis

34

slot-like recess

35

casing

36

crank

37

Return spring 37

39

knob

40

bearing shell

41

U-shaped turning section from 27

42

side arm at 41

43

Turn on 30

44

recess

45

pivoting lever

46

attack

47

attack

48

Turntable above

49

Turntable below

50

fastening point

Claims (11)

Locking device, in particular for motor vehicle doors, with a lock cylinder (20) to be actuated by a key (21), with a lock mechanism (22) for locking or unlocking the door and with a transmission part (30) between the lock cylinder (20) and lock mechanism (22 ), in this case a rotating part (24, 27) is connected to the lock cylinder (20) and to the lock mechanism (22), on which the transmission part engages,
characterized,
that the transmission part (30) is rod-shaped, that both the rotary part (24) assigned to the locking cylinder (20) and the rotary part (27) assigned to the lock mechanism (22) are crank-shaped with an axis of rotation (25, 28), and with at least one crank pin (26, 29) that the rod-like transmission part (30) is arranged on the crank pin (26, 29), in this case the transmission part (30) guides both when the rotating part (25, 27) of the locking cylinder (20) rotates a swivel motion as well as a Translational movement, in which the rotating part (27) of the lock mechanism (22) can also be moved. Locking device according to claim 1, characterized in that at least one of the rotating parts (24, 27) of the locking cylinder (20) and / or locking mechanism (22) is loaded with a spring (37) which the rotating part (24, 27) releases when released turns back a starting position. Locking device according to claim 1 or 2, characterized in that the transmission part (30) has a slot-like opening (34) in which the crank pin (26, 29) of the rotating part (24, 27) engages. Locking device according to one of claims 1 to 3, characterized in that the rotating part (24, 27) has a double bearing, in this case the transmission part (30) is arranged between the two bearing points. Locking device according to one of Claims 1 to 4, characterized in that the rotating part (24, 27) has two rod-like transmission parts (30), in this case a crank pin (26, 29) carries the one transmission part (30) and a second crank pin directed in exactly the opposite direction (26, 29) the second transmission part (30), the two crank pins (26, 29) on the rotating part (24, 27) being at an angle of at least 30 ° apart when viewed in the axial direction (25, 28). Locking device according to one of claims 1 to 5, characterized in that that the two crank pins (26, 29) are arranged on an anchor-like intermediate piece (41, 42). Locking device according to one of claims 1 to 6, characterized in that the rod-like transmission part (30) comprises a bend (30) in its longitudinal direction. Locking device according to one of claims 1 to 7, characterized in that the bend is in the region of the slot recess (44) of the transmission part (30). Locking device according to one of claims 1 to 8, characterized in that the transmission part (30) can be fixed on the rotary part (24, 27) by a latching connection. Locking device according to claim 9, characterized in that a spherical section (39) is provided on the rotating part (24, 27) for mounting the projection part (30), on which the transmission rod (30) can be clipped on with a corresponding bearing shell (40). Locking device according to one of claims 1 to 10, that on the rotating part (24, 27) of the lock mechanism (22) a pivoting rotary lever (45) is arranged, which forms the second bearing point for the transmission part (30), in this case the pivoting lever (45) both rotatable and tiltable, stops (46, 27) on the rotating part (27) being provided to limit the rotary movement.

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