DE19952798C1 - Operating device for automobile door catch has operation of maunal handle trasferred to operating rod for door catch dependent on position of catch locking device - Google Patents

Abstract

The operating device has a manual handle (40) operated for moving the door catch (70) into its open position in the unlocked position of the latter, via a motion converter with a rotary and axially displaced shaft (20), selectively coupled with a motion transfer element (30), cooperating with an operating rod (60) for the catch, in dependence on the position of the locking device (50).

Description

The invention relates to an actuating device for a Lock, in particular a vehicle lock, which in the preamble of Claim 1 mentioned Art.

Such actuators are used to transfer a Lock from a closed position on the one hand to an open position on the other hand. For this purpose, the user actuates a handle, the Movement through one or more transmission links to one Actuating linkage of the lock is transmitted. When moving the handle can be, for example, the linear movement of a Act a button or a pivoting movement of a pivoting lever. There are Actuators known in which the movement of the Handle in a linear movement of a first transmission member is implemented. This indirectly becomes the movement of a second Transmission member causes. The second transmission link can it is a swivel lever, a slide or the like. The second transmission link stands directly or indirectly with the Actuating linkage for the lock in connection. The second Transmission link is in operative connection with the first, or  can be brought into what by articulation or by a driver device can be implemented. In any case, indicate that first and the second transmission member contact surfaces that each other at least partially overlap. When actuated, they can Contact surfaces interact with each other. Except for the Actual actuation of the lock must be an actuation device of the aforementioned type also perform a security function. Especially with linearly movable handling, it is common to secured state the operation of the handle itself, for. B. by Inserting a securing element into the stroke of the first To prevent transmission link. However, there is the Risk of destruction if excessive force is applied to the secured handle. In addition, after the destruction of the Securing element the actuator u. U. without further ado operated and the lock opened.

DE 35 20 101 A1 is a door central locking, especially for motor vehicles DE-OS 26 56 215 a Lock for motor vehicles and DE 36 23 990 A1 a locking system described for a vehicle door.

The object of the invention is an actuator of the Generic type to create, the handle even in the secured Condition can be actuated, the transfer of the lock from the Closing in the open position necessary operative connection only in Unlocking case can be made.

This problem is solved by the characteristics of the characteristic Part of claim 1.

These have the following meaning in detail. That linear movable, first transmission link is axially displaceable and rotatable shaft designed. This shaft has a radial protruding projection with a contact surface that when actuated the handle in the unlocked state with a corresponding one Contact surface of the second transmission member interacts and causes movement of the latter. Instead of securing the  Axial movement of the first transmission member, for. B. by retracting blocking a stroke in the stroke becomes an overpass the safety device in the safety position by a Rotation of the shaft causes, which in the unlocked state as Driver serving projection from the overlap area with the Contact surface of the second transmission member is pivoted. At actuation of the handle is still the shaft in a linear, axial movement offset, an operative connection to the second transmission link is not produced. A Transfer of the lock from the closed to the open position not possible with it. At the same time, excessive use of force no damage to the operating mechanism on the handle cause because the parts of the Actuate the actuator in an unchanged manner.

In order to operate the safety device incorrectly, e.g. B. as radio-controlled central locking can be carried out to prevent it is advantageous not only the functionality of the safety device regardless of the condition of the lock, but also regardless of State of the actuating device, in particular the handle shape. First of all, the actuating device should be such that that a rotation of the shaft from the unsecured to the secured Location even with active connection established, d. H. when contacting the corresponding contact surfaces of the driver projection on the Wave and the second transmission link is possible. To do this the contact surfaces themselves should be smooth and free of protrusions. This allows the actuation device to be operated even when the handle is actuated be locked.

Since it is not necessary in all cases, a transfer from the secured to the unlocked position when the handle is actuated allow, it may be sufficient to have such a transfer  prevent. The actuating device would thus remain in a sealed position Status; the safety device would have to be operated again. This can by a further radial projection of the shaft above the Driver projection or by an axially elongated shape of the driver lead can be achieved. When trying one Rotation of the shaft in the unlocking direction and when actuated This lead or area of the Driver projection on the second transmission link Find a stop and thus counter rotation of the shaft.

It is even cheaper to transfer the actuator from the secured to the unlocked position when the handle is actuated enable. Another protrusion or an axially elongated one Shape of the driver projection, as described above, would come not in question here. Rather, the shaft would twist Driver projection in the overlap area with the second Transmission link pivoted, but the position of the interacting elements would be reversed in axial order. When the handle is released, the second transmission link would follow be taken up into an unintended position where it in the worst case between driver projection and housing could jam. Such incorrect operations can be excluded by executing the second transmission link in two parts, wherein a front part hinged to the main body of the second Transfer member is arranged. This will make the front part automatically when the handle is released from the overlap area worked. A preferably provided spring load can Ensure that the front part is then ready for use again Location is folded back.

Further advantages of the invention result from the subclaims, the special description and drawings that Embodiments of the invention included. Show it:

Fig. 1 is an overall perspective view, partially broken away, of the actuating device, the actuating linkage and parts of the lock, wherein the lock is in the closed position, unlocks the system and the handle is not actuated,

Fig. 2 is a detailed view of first and second transmission element of the actuating device, wherein the system released and the handle is not actuated,

Fig. 3 is a detailed view of first and second transmission element of the actuating device, wherein the system released and the handle is operated and the second transmission member is in a maximum deflection position,

Fig. 4 is a detailed view of first and second transmission element of the actuating device, wherein the system back up and the handle is not actuated,

Fig. 5 is a detail view of the first and second transmission element of the actuating device, wherein the system back up and the handle is actuated,

Figure 6 is a detailed view of first and second transmission element of the actuating device, wherein the system back up and the handle is actuated, fails. During the test of the safety catch by rotation of the shaft at the contact between the projection and the second transmission member,

Fig. 7 is an overall perspective view, partially broken away, of the actuating device, the actuating linkage and areas of the lock, the lock being in the open position, the actuating device being unlocked and the handle being actuated while the device is being turned from the unlocked to the secured by turning the shaft Situation is transferred

Fig. 8 view according to the line VIII-VIII in Fig. 1, wherein in the unlocked position, the projection of the shaft is pivoted in the area of overlap with the second transmission member,

Fig. 9 a representation analogous to Fig. 8, however, the shaft is pivoted out of the overlapping region with the second transmission member in a secured state, the projection,

Fig. 10 is a detail view of portions of the backup device in side view,

Fig. 11 is a detail view of portions of the backup device in a bottom view according to XI in Fig. 10,

Fig. 12 a representation analogous to FIG. 5, but with 2-piece has been executed, the second transmission member,

Fig. 13 a representation analogous to FIG. 6, but with 2-piece has been executed, the second transmission member and without the unlocking preventing contact surface,

FIG. 14 shows the reset of the actuated handle from the phase shown in FIG. 13.

Fig. 1 shows in a perspective overall view of an actuating device 10 in the preferred embodiment. In addition to the actuating device 10 itself, the actuating linkage 60 , embodied as a Bowden cable system and parts of the lock 70, are shown. A handle 40 is connected via a guide 41 to the housing 11 of the actuating device 10 , which contains its essential, functional elements and the securing device 50 . In the final assembly state, only the handle 40 will be visible, while all other components are housed inside the door, flap or the like to be locked. The first transmission element, which is designed as a shaft 20 , is also moved linearly via the handle 40 , which is arranged to be linearly movable in the guide 41 . The shaft is supported by a guide 12 in the housing 11 and by a sleeve 51 , which is assigned to the securing device 50 and which will be discussed in more detail below. In a manner to be explained in more detail below, the movement of the shaft 20 is transmitted by the driver device in the form of the projection 21 to the second transmission element designed as a pivot lever 30 . The swivel lever 30 comprising a front arm 31 and a rear arm 32 is pivotably mounted with a bearing eye 33 on a bearing pin 34 connected to the housing 11 . In the preferred embodiment, the bearing journal 34 is made from two elastically connected half shells, which enter into a clip connection with the bearing eye 33 . This has special advantages during assembly. Of course, other connections, such as riveting or screwing, are also possible, if necessary using a separate bearing sleeve. The front arm 31 of the swivel lever 30 serves with its contact surfaces in the front area to interact with the shaft 20 . The rear arm 32 essentially serves for connection to the actuating linkage 60 . In the preferred embodiment, in which the actuating linkage 60 is designed as a Bowden cable system, the rear arm 32 carries a receptacle 321 for an extension 611 of the inner cable 61 . The inner cable 61 is guided in the outer cable 62 , which is fixed with its holder 621 to the housing 11 and with its holder 622 to the lock 70 . Analogously to the actuator 611 on the actuator side, the inner cable 61 has an adapter 612 connected to movable parts of the lock 70 . A variant of the preferred shape of the actuating linkage 60 , z. B. as a system of rigid, articulated members is also applicable regardless of the design of the actuator. In addition to the sleeve 51 already mentioned, the securing device 50 located in the housing 11 includes the slide 55 and the central locking component 56 . The purpose of the securing device 50 is to twist the shaft 20 in some areas about its longitudinal axis. The preferred embodiment shown in FIGS. 1, 7, 10 and 11 is particularly advantageous due to its simple construction. Of course, any other mechanism can be used which is suitable for causing the shaft 20 to rotate. The details of the interaction of shaft 20 and securing device 50 will be discussed below in the description of the detailed representations.

Fig. 1 shows the locking system with actuating device in the following constellation: lock 70 in the closed position, system unlocked, handle 40 not actuated.

In FIGS. 2-6, the main phases of the interaction between the first and second transmission element are represented ie between the shaft 20 and the swing lever 30 in the preferred embodiment. Movement arrows 8 x.y (e.g. 84.2) each indicate the movement of the shaft 20 that is required to move from the actuation phase shown in FIG. X (e.g. FIG. 4) to that in FIG. Y (e.g. Fig. 2) to arrive. Movement arrows are shown in dashed lines, which indicate a transition that is impossible in the preferred embodiment.

The constellation shown in FIG. 2 corresponds to that from FIG. 1. The reinforcing ribs 22 , 23 of the shaft 20 can be seen in this detailed drawing. These not only have the task of achieving increased bending stiffness of the shaft 20 , but, as will be explained in more detail below, also serve in their lower region 23 for the rotationally fixed and axially displaceable mounting of the shaft 20 in the sleeve 51 . A stop 13 , which is connected to the housing 11 , is not absolutely necessary for the functionality of the actuating device. However, it limits the freedom of movement of the pivoting lever 30 , in that its front arm 31 , which is preferably provided with a stiffening rib 35 , finds an abutment here. As a result, the swivel arm 30 cannot be moved into an unscheduled position even by vibrations while driving. Of course, it is also possible to provide an analog stop in interaction with the rear arm 32 of the pivot lever 30 .

The radial projection 21 is moved with the shaft 20 by a downward movement of the shaft 20 in FIG. 2, which can be triggered by actuating the handle 40 according to movement arrow 82.3 , so that its driver contact surface 211 interacts with the driver contact surface 311 . Further propulsion of the shaft 20 produces a pivoting movement of the pivot lever 30 up to its maximum actuation position according to FIG. 3. As a result, the lock 70 is transferred from its closed to its open position. Return transfer according to movement arrow 83.2 of the handle 40 , which is preferably spring-loaded, also leads to a return of the shaft 20 and the pivot lever 30 .

The system can be brought into the safety state from each of the two phases shown in FIGS . 2 and 3 according to the movement arrows 82.4 and 83.5 . By rotation of the shaft 20 , the driver contact surface 211 is pivoted out of the overlap region with the driver contact surface 311 . This can be seen particularly clearly from FIGS. 8 and 9. The dark hatched driver contact surface 211 is pivoted in FIG. 8 from the overlap area with the arm 31 , while it overlaps it in FIG. 9. The transfer according to movement arrow 82.4 from the phase shown in FIG. 2 to that shown in FIG. 4 is particularly simple. When the shaft 20 is rotated, there is no interaction between the pivot lever 30 and regions of the shaft 20 . Rotation of the shaft 20 into the secured position when the handle is actuated is also possible. Here, the shaft 20 is carried out starting from the phase shown in FIG. 3 in accordance with the movement arrow 83.5 into the phase shown in FIG. 5. Here, the driver contact surface 211 of the radial projection 21 interacts with the driver contact surface 311 of the front arm 31 of the pivot lever 30 . Rotation of the shaft 20 is nevertheless possible, provided the contact surfaces 211 , 311 themselves are smooth and free of protrusions. With the pivoting of the shaft 20 is, as shown in Fig. 5 particularly clearly seen, the radial projection 21 from the overlapping region with the front arm 31 is pivoted. The driver device formed from the contact surfaces 211 and 311 is disengaged in the secured position. Actuation of the handle 40 still causes an axial movement of the shaft 20 , but no longer leads to a movement of the swivel arm 30 .

In principle, it would be desirable to make a transfer of the securing device from the secured to the unlocked position and back completely independent of the condition of the other components of the closure. In many cases, however, it is sufficient to design the above-described securing of the system independently of the actuation state of the handle 40 . As described further below, the possibility of returning to the unlocked state when the handle 40 is actuated is associated with considerable additional expenditure. If this functionality can therefore be dispensed with, it must at least be ensured that the attempt to actuate the shaft 20 in the unlocking direction when the handle 40 is actuated does not lead to malfunctions. This can be achieved in that a stop contact surface 212 is provided on the projection 21 , which in such an attempt strikes the stop contact surface 312 of the front arm 31 of the pivot lever 30 . This interaction is shown in Fig. 6. The stop contact surface 212 can, as in the exemplary embodiment shown, be realized as an axial extension of the projection 21 . Of course, it is also possible to provide a separate projection for this.

A variant of this, which allows the shaft 20 to be transferred between the secured and the unlocked position in any direction, is shown in FIGS. 12-14. The front arm 31 of the pivot lever 30 is made here in two parts. The rear part 31.1 and the front part 31.2 are connected to one another via a hinge joint 36 . The state shown in FIG. 12 corresponds analogously to that shown in FIG. 5. In addition to the multi-part design of the front arm 31 of the swivel lever 30 , the lack of the stop contact surface 212 can be seen as a difference from FIG. 5. Rotation of the shaft 20 according to the actuating arrow 812.13 brings the system into the unlocked state. This transfer was prevented by the stop contact surface 212 in the embodiment shown in FIGS. 5 and 6. As can be seen from FIG. 13, the front part 31.2 of the arm 31 comes to lie between the projection 21 and the guide 12 . When the front arm 31 is made in one piece, releasing the handle 40 would result in the arm 31 becoming jammed between the projection 21 and the guide 12 . In the case of a two-part arm 31, on the other hand, the front part 31.2 can fold away from the overlap region with the projection 21 , as is shown in FIG. 14. In order to also ensure a return of the folded away section 31.2 after the handle 40 has been reset, spring means 37 can be provided, for example. In any case, the hinge joint 36 must be mounted in such a way that the return of the handle causes the front part 31.2 to fold away, while a load in the opposite direction is provided with corresponding resistance, so that the scheduled actuation is analogous to that shown in FIGS. 2 and 3 Embodiment can take place.

FIG. 7 again shows an overall perspective view of the locking system with the actuating device 10 in a constellation which results from the rotation of the shaft 20 according to the movement arrow 83.5 halfway between the phases shown in FIGS . 3 and 5. The sliding of the driver contact surfaces 211 and 311 of the radial projection 21 and the front arm 31 of the pivoting lever 30 can be seen here .

In Figs. 10 and 11 are shown details of the securing device. The shaft 20 is axially displaceably mounted in a central recess 52 of the sleeve 51 . The recess 52 has grooves 521 , the shape of which is adapted to the stiffening ribs 23 of the shaft 20 . The sleeve 51 is in turn rotatably supported in the brackets 54 . Advantageously, the brackets 54 are formed as resilient plastic clips that engage in corresponding grooves in the sleeve 51 . Furthermore, the sleeve 51 has an eccentric extension 53 , which is provided with lateral pins 531 . The pins 531 engage in bearing eyes (not shown), preferably elongated holes, of the slider 55 . An actuation of the safety device 50 , advantageously the central locking component 56 , initially causes a linear displacement of the slide 55 . This is converted via the bearing eyes of the slide 55 and the pin 531 into a rotational movement of the sleeve 51 and thus the shaft 20 . The direction of rotation of the shaft 20 depends on the direction of movement of the slide 55 .

The embodiments of a closure with the actuating device according to the invention shown in FIGS. 1-14 merely represent particularly advantageous exemplary embodiments. As a possible modification, the second transmission element can be designed in the form of a slide or the like instead of as a swivel arm 30 .

Reference list

10th

Actuator

11

casing

12th

guide

13

attack

20th

wave

21

radial projection

211

Driver contact surface

212

Stop contact surface

22

Wide part of a stiffening rib

23

Narrow part of a stiffening rib

30th

Swivel lever

30.1

Swivel lever in the rest position

30.2

Swivel lever in the maximum drop position

31

front arm of

30th

31.1

rear part of the two-part executed variant of

31

31.2

front part of the two-part executed variant of

31

311

Driver contact surface

312

Stop contact surface

32

back arm of

30th

321

Recording for

611

33

Bearing eye

34

Bearing journal

35

Stiffening rib

35.1

rear part of

35

at made in two parts Variant of

31

35.2

front part of

35

at made in two parts Variant of

31

36

Hinge joint

37

Return spring

40

Handle

41

guide

50

Safety device

51

Sleeve

52

execution

521

Groove

53

Continuation

531

Cones

54

camp

55

Slider

56

ZV component

60

Actuating linkage

61

Inner cable

611

Extension

612

Extension

62

Outer train

621

bracket

622

bracket

70

Lock

82.3

Movement arrow

82.4

Movement arrow

83.2

Movement arrow

83.5

Movement arrow

84.2

Movement arrow

85.6

Movement arrow

812.13

Movement arrow

813.12

Movement arrow

813.14

Movement arrow

Claims (19)

1. actuating device for a lock ( 70 ), in particular a vehicle lock,
through which the lock ( 70 ) can be converted from a closed to an open position
and which can be moved into a secured and an unlocked position by a securing device ( 50 ),
with a handle ( 40 ), the actuation of which in the unlocked state serves to transfer the lock ( 70 ) into the open position,
wherein a linear movement of a first transmission element is effected,
which has a driver device which, through mechanical interaction of its contact surface ( 211 ) with a regionally overlapping contact surface ( 311 ) of a second transmission element, which interacts with an actuating linkage ( 60 ) for the lock ( 70 ), transmits the movement to this second transmission element ,
whereas, in the secured state, at least the movement of the second transmission element is prevented,
characterized in that
the first transmission member is designed as a rotatable and axially displaceable shaft ( 20 ) which has a radially projecting projection ( 21 ) which, in the unlocked state, serves to entrain the second transmission member while in the secured state it rotates the shaft ( 20 ) by means of the securing device ( 50 ) is pivoted out of the overlap area with the second transmission member. 2. Apparatus according to claim 1, characterized in that the interacting contact surfaces ( 211 ; 311 ) of the projection ( 21 ) and the second transmission member ( 30 ) are sufficiently smooth and free of protrusion to a rotation of the shaft ( 20 ) in the interaction Allow safety direction. 3. Device according to one of claims 1 and 2, characterized in that the second transmission member ( 30 ) is deflected by actuating the handle ( 40 ) in the unlocked state from a rest position and in the absence of one over the contact surface ( 211 ) of the projection ( 21 ) transmitted force automatically returns at least approximately to the rest position. 4. Device according to one of claims 1 to 3, characterized in that on the shaft ( 20 ) has a contact surface ( 212 ) having a projection which, when actuated handle ( 20 ), a rotation of the shaft ( 20 ) in the unlocking direction by a stop counteracts on a corresponding contact surface ( 312 ) of the second transmission element ( 30 ). 5. The device according to claim 4, characterized in that the rotation of the shaft preventing contact surface ( 212 ) on an axial extension of the entrainment of the second transmission member ( 30 ) serving projection ( 21 ) is provided. 6. The device according to claim 4, characterized in that for the Taking the second transmission link and for the prevention different projections are provided for rotation of the shaft are. 7. Device according to one of claims 1 to 3, characterized in that the second transmission member ( 30 ) is constructed at least in two parts, a front part ( 31.2 ) is fastened to a rear part ( 31.1 ). 8. The device according to claim 7, characterized in that the foldable front part ( 31.2 ) after rotation of the shaft ( 20 ) with actuated handle ( 40 ) in the unlocking direction with the slave projection ( 21 ) overlaps that the contact surfaces ( 221 ; 311 ) point away from each other and that when the handle ( 40 ) is reset, the foldable front part ( 31.2 ) folds out of the overlap area. 9. Device according to one of claims 7 and 8, characterized in that the foldable front part ( 31.2 ) is articulated via a hinge joint on the rear part ( 31.1 ) of the second transmission member. 10. Device according to one of claims 7 to 9, characterized in that a return spring ( 37 ) is provided which, in the absence of external forces, returns the foldable front part ( 31.2 ) to its rest position. 11. Device according to one of claims 1 to 10, characterized in that the shaft ( 20 ) has radially projecting and axially extending stiffening ribs ( 22 , 23 ). 12. The device according to one of claims 1 to 11, characterized in that the second transmission member is designed as a pivot lever ( 30 ). 13. The device according to one of claims 1 to 12, characterized records that the second transmission member is designed as a slide is. 14. Device according to one of claims 1 to 13, characterized in that the actuating linkage ( 60 ) for the lock ( 70 ) is a Bowden cable construction. 15. The device according to one of claims 1 to 13, characterized in that the actuating linkage ( 60 ) for the lock ( 70 ) is constructed from rigid, articulated elements. 16. The device according to one of claims 1 to 15, characterized in that the actuating member ( 40 ) is designed as a button. 17. The device according to one of claims 1 to 15, characterized in that the actuating member ( 40 ) is designed as a pivot lever. 18. Device according to one of claims 1 to 17, characterized in that the shaft ( 20 ) is axially displaceably and rotatably mounted in a rotatably mounted sleeve ( 51 ). 19. The apparatus according to claim 18, characterized in that the sleeve ( 51 ) via a slide ( 55 ) which engages an eccentric extension ( 53 ) of the sleeve ( 51 ) is rotatable.