EP1295000B1 - Actuating device for a lock, especially in a motor vehicle - Google Patents

Description

The invention relates to an actuating device for a lock, in particular on a motor vehicle, which in the preamble of claim 1 mentioned type. In such actuators is characterized by the Actuation of an actuator, often as linearly displaceable Button is formed, the linear movement of a transmission element causes. Depending on the version, the transmission element is as one piece Extension of the actuating element or designed as an independent component. On the transmission element, a driver device is provided which its movement onto a trigger element, e.g. a bell crank, transmits, via an actuating linkage, such as a Bowden cable, with the Castle is in operative connection.

Often, such actuators are securable. In particular are often provided central locking devices through which Locking elements are moved so that the movement of the actuating and / or the transmission and / or the trigger element are blocked.

From DE 198 31 944 C1 is a confirmation device for a lock known. The arranged in a cylinder housing and rotatably mounted Lock cylinder is connected to a lever housing. Both are in Unlocking and locking position of the lock cylinder axially slidably arranged. On the lever housing inside is a second Cam provided. The first cam can be used both in unlock and in Locking position of the lock cylinder to be moved with. In a Intermediate position is the axial displacement of the lock cylinder prevents the second cam. This prior art has several Disadvantages. By blocking one or more moving parts there is a danger of destruction when using force on the Actuator. In addition, does the blocking element (cam) prove as the weakest link in the operational chain between Actuator and lock, use of force leads to breakage of the Blocking element and unauthorized triggering the Schloßmechanismusses. When Another disadvantage of the known devices is the backup only either via the central locking unit together with the other locks of the motor vehicle activatable or in principle separately. Latter Variant has the disadvantage of uncomfortable handling for the user, what experience has shown that the separate security option, e.g. a glove compartment or other lockable storage compartment, in usually not used. Especially in convertibles is such Backup option but of particular importance. At the former Variant, on the other hand, is any current owner of the Central locking trip unit, e.g. a radio transmitter, capable of all locks of the vehicle connected to the central locking open together. However, this is often unwanted. So must For example, in hotels or workshops where third parties move the vehicle must be allowed access to the vehicle interior. On the other hand, it would be beneficial if storage compartments remained closed, so that personal belongings are protected against the access of third parties.

The object of the invention is to provide an actuating device of the aforementioned To provide type that allows a legitimate user to convenient way the fuse through the central locking unit to activate, but at the same time leaves him the opportunity, unauthorized Give users only selective access. Another task The invention is to make the actuator so that also with excessive force on the actuator not the danger an unauthorized opening of the castle exists. Error operations are more reliable and the user by absolute Stell- or Drehwege convey the feeling of a precisely working mechanism.

These objects are achieved by the features of the characterizing part of claim 1. These have the following significance in particular. The Transmission element is mounted as an axially displaceable and rotatable shaft. The rotation of this shaft is effected by a first securing device, preferably a central locking unit. The actuator has an area which, by means of a second securing device, preferably a cylinder lock, regardless of the shaft and its Securing device is rotatable. Both elements each have at least an eccentrically arranged extension, wherein the end faces of the Fortsätze are facing each other. By pressing one of the provided Securing devices, the relative rotational position of each other changes opposite extensions to each other. It is according to the invention provided that the end faces of the extensions in certain relative Rotational positions overlap, while in other rotational positions they do not overlap one another overlap. Upon actuation of the actuating element in the overlapping position finds the extension of the rotatable portion of the actuating element a Stop at the end face of the wave extension. This allows the Movement of the actuating element in a linear movement of the axial slidable shaft are transferred. Upon actuation of the Actuator in a non-overlapping position, however, be found Extension no stop, which is why no axial displacement of the shaft takes place, which would trigger the lock mechanism. The entire device is therefore in any non-overlapping position in one Securing position. Increased application of force to the actuator can do not lead to the destruction of an element and the Forcibly activate the lock mechanism.

The independent rotation of the shaft and the rotatable area of the Actuator allows one of the extensions, preferably that of the Actuator to convert to an absolute rotational position, in which no overlap with the other extension is possible, namely regardless of which of its intended, absolute positions this is located. In this position, referred to hereinafter as the "Hotel Position" Reference is made to the vehicle of any third party, the has a central locking device, moves be, but in one with the inventive Actuator equipped storage compartment stowed, personal Objects are safely protected. In another, by the legitimate User adjustable rotational position of the extension on the actuating element, on which is hereinafter referred to as "normal position" is against the overlap depending on the absolute position of the wave extension, so that provided with the actuator according to the invention Storage compartment together with the central locking securable or is securable.

To achieve this object, according to the invention characterizing part of claim 2, proposed axially between the Fortsätzen a locking disc rotatably to arrange, which is a recess whose shape is a passing through the extension of the Actuating element only in certain, absolute rotational positions of this Extension allows while passing through in other rotational positions is mechanically prevented. This embodiment has the following advantages:

Is the extension of the actuating element in an "allowed" Position, he attacks upon actuation of the actuating element by the Recess of the locking disc and can, depending on the absolute rotational position the axially displaceable shaft, meet on the extension, whereby the Lock mechanism can be triggered. Would during this Active connection accidentally rotation of the rotatable portion of the Actuator done, the end faces of the extensions could slipping from each other, which would lead to incorrect operation. Through a positive engagement of the extension of the actuating element by the recess of the non-rotatable locking disc, is a rotation effectively prevented on the actuator. Misoperation is with it locked out. In addition, the provision of the locking disc has the consequence that the penetration of the extension itself only in the "allowed" or "allowed" Positions is possible, i. E. only after passing through absolute turning lanes, giving the impression of the exact working mechanism for the User is increased.

Fig. 1

einen Querschnitt durch eine erfindungsgemäße Betätigungsvorrichtung,

Fig. 2

einen weiteren Querschnitt durch eine erfindungsgemäße Betätigungsvorrichtung um 90° gegen Fig. 1 verdreht,

Fig.3

ein Schema von möglichen Drehstellungskonstellationen in einer besonders vorteilhaften Ausführungsform, wobei die Schnitte a, b und c den Schnittlinien IIIa, IIIb und IIIc in den Fig. 1 und 2 entsprechen,

Fig. 4

eine Draufsicht auf den Drehzylinder einer erfindungsgemäßen Betätigungsvorrichtung mit verschiedenen Drehlagen des Schlüsselschlitzes,

Fig. 5

eine Schnittzeichnung durch eine erfindungsgemäße Betätigungsvorrichtung, eingebaut in einem besonders vorteilhaft gestalteten Armaturenbrett.

Further advantages of the invention will become apparent from the other dependent claims, the specific description and the drawings. Show it:

Fig. 1

a cross section through an actuating device according to the invention,

Fig. 2

rotated a further cross-section through an actuating device according to the invention by 90 ° with respect to FIG. 1,

Figure 3

a diagram of possible rotational position constellations in a particularly advantageous embodiment, the sections a, b and c corresponding to the sectional lines IIIa, IIIb and IIIc in FIGS. 1 and 2,

Fig. 4

a top view of the rotary cylinder of an actuating device according to the invention with different rotational positions of the key slot,

Fig. 5

a sectional drawing through an actuator according to the invention, installed in a particularly advantageous designed dashboard.

In the sectional drawing of Fig. 1, the essential elements of a particularly advantageous embodiment of an inventive Actuator clearly visible. In a housing 10 are an axially displaceable shaft 20 and a trained as a push button 30 Actuator disposed between which a locking plate 40 rotatably is held, which is provided with a central recess 41. Of the rotatable portion of the actuating element is as lock cylinder 31 of an in executed the push button 30 integrated cylinder lock. The Cylinder lock is by means of a mechanical key 35, which in the Key slot 34 is inserted, actuated. On the lock cylinder 31 is an extension 32 is provided in the axial extension, whose eccentricity in Fig. 1 is not, in Fig. 2, however, clearly visible. Upon actuation, i. Pushing the push button 30, the extension 32, if he is in a suitable absolute rotational position, the recess 41 of the Lock washer 40 pass through. On the other side of the blocking disc he meets one likewise eccentric extension 22 of the shaft 20. In continuation of the Eindrückbewegung the shaft 20 is axially displaced, the Carrier 21 with the as the lever 12 schematically indicated triggering element interacts. Not shown in Figs. 1 and 2 is an actuating linkage, with which the Release lever 12 with the lock also not shown in Active compound is. Also indicated only schematically is the Central locking unit 11 through which the shaft 20 are rotated can.

Fig. 3 shows in a clear way different constellations of Rotary positions, the shaft 20 and the lock cylinder 31 in a particular advantageous embodiment of the invention can take. The Numbers 1 to 5 each designate different constellations, while the letters a to c refer to the corresponding ones Section planes, which are shown as IIIa, IIIb and IIIc in Figs. 1 and 2 are. In series a is thus the position of the wave extension 22 with his hatched shown face 23 indicated. In row b is non-rotatable held lock washer 40 with its recess 41 shown in the embodiment shown constructed essentially of two areas is, namely the unlocking 42 and the special area 43, on whose special functions will be discussed below. Row c schematically shows a section through the lock cylinder 31 with its Extension 32 and in particular its hatched drawn face 33rd Row d symbolizes the in the illustrated embodiment provided positions of the key slot 34. A plan view of the Lock cylinder 31 with the various positions of the Key slot 34 is shown in FIG.

The constellations 1 and 2 in Fig. 3 show the two in the "hotel position" achievable positions of the individual elements. In row c is the face of the Cylinder extension shown in their "hotel position" 33 '. In this position is an impression of the push button not possible because the end face 33 ' strikes against the locking plate 40 without dipping its recess 41 can. However, the locking plate 40 is not the actual Securing mechanism, since in this position even if missing Blocking plate 40 or its destruction after excessive force application an operative connection with the end face 23 of the shaft 20 is not made can be, regardless of whether the face of the Wave extension in its securing position 23 '(constellation 1) or in its unlocking position 23 "(constellation 2) is located Cylinder is in the "hotel position" 33 ', so can a third party, e.g. a hotel porter without concern the triggering device of Central locking, e.g. a radio remote control, be entrusted, so that this is able to move the vehicle. Yet it does not become him be able to access personal items in one with the inventive operating device equipped storage compartment are housed.

The constellations 3 and 4, however, are provided in "normal operation". The end face of the cylinder extension is here in its "normal position" 33 ''. In this rotational position, the extension 32 "on actuation of the Push button 30 through the recess 41 of the locking plate 40, and that in particular by their unlocking 42, dive through. Whether there an operative connection with the wave extension 22 and thus triggering the Lock mechanism is achieved depends solely on the rotational position of the Wave 20 off. Is namely the wave extension in the Backup position 22 '(constellation 3), performs the operation of the Push button 30 not to open the lock. Takes the wave extension but its unlocking position 22 "(constellation 4), the lock opened upon actuation of the push button 30. This is a misoperation by accidentally turning the lock cylinder 31 during the Active compound excluded. The unlocking 42 of the Sperrplattenausnehmung 41 is namely advantageously designed so that the extension 32 "engage substantially in a form-fitting manner through it can. A rotation of the lock cylinder 31 is thus effectively prevented.

The relatively high complexity of the constellations 1 to 4 becomes made possible by the shape of the extensions 22 and 32 and by the achievable, absolute rotational positions of shaft 20 and lock cylinder 31. Die Face 23 of the wave extension 22 is shaped so that they only in one of the two half-planes extending through a the axis of rotation perpendicular cutting straight line are separated from each other. Advantageously, this will as in the embodiment shown in the figures, by an approximately semicircular nature of the end face 23 realized. It should Care should be taken, however, that the tendon of the approximately semicircular Circular section is set back by a few of the circle diameter. This can be avoided that even in one Non-overlapping position, e.g. through manufacturing tolerances, an unwanted Overlap with the other extension 32 along the circle diameter and especially arises in the center of the circle.

The end face 33 of the cylinder extension 32, however, is advantageously so shaped to extend only in one of the four quarter levels that pass through two the axis of rotation and perpendicular intersecting straight lines separated are. In particular, it is advantageous, the end face 33, as in the in the Figures illustrated embodiment, approximately in a quarter-circle to shape. Again, care should be taken that the end face 33, especially in its tip, not on the circle diameter and in particular does not reach the axis of rotation. The reasons for this are analogous from the predicted.

Are now both extensions independent of each other in two by 90 ° Rotatable mutually offset rotational positions, the Konstallationen can be 1 to realize 4.

In the particularly advantageous embodiment shown in the figures, is another Konstallation 5 is provided. It is in particular by it characterized in that the cylinder extension into a special position 32 '" can be converted, in which its end face 33 '' 'with the end face 23' of the wave extension 22 'in their securing position in areas overlaps. In order in this special position an operative connection between the To reach extensions 32 '' 'and 22', is in the locking disc 40 a Special area 43 of the recess 41 is provided, which is a penetration of the Extension 33 '' 'allows. This advantageous development offers itself especially in convertible vehicles. Is the vehicle already over secured the central locking, and the user wants but one with the inventive actuator provided storage compartment again without re-activating the central locking, this can be done in the Special position, which is also due to the position 34 '' 'of Key slot 34 distinguishes, be achieved. To malfunction too Avoid, it is advantageous if the mechanical key 35 in this Special position 34 '' 'of the key slot is not removable. When additional relief may be an automatic reset, e.g. by Spring force, provided in the "normal position" 34 "of the key slot become.

Finally, it is advantageous to use the invention Install actuator in a dashboard 50 that is nearby the actuator has a projection 51. Is also the mechanical key 35 shaped so that its handle in the "normal position" 35 'did not collide with the dashboard 50 when pressed in, while in his "hotel position" 35 'while impressing with the Projectile 51 would collide, is an additional, purely mechanical Security precaution affected. In this embodiment also takes over the locking disc 40 an additional function. Since they are impressions anyway prevented in the position 35 ', the surface of the projection 51 is in Normal case against mechanical damage by the key 35 ' protected. In case of violence, the collision of Key 35 'and projection 51 an additional safeguard.

Of course, other embodiments of the invention Actuator possible. In particular, it is not mandatory necessary, the rotatable portion of the actuator as Design lock cylinder 31. Rather, it is conceivable here to provide an electric lock, e.g. via a special function of a Radio remote control is controlled. Nor is it absolutely necessary to design the actuator as a push button 30. Rather, you can the features essential to the invention also in embodiments, e.g. when Lever or the like, be realized. Finally, the must Locking plate 40 not, as shown in Figs. 1 and 2, as a separate part be designed. Rather, it is possible and often for cost reasons advantageous, the locking plate 40, at least partially, as suitable shaped projection of the housing 10 to design.

LIST OF REFERENCE NUMBERS

10

casing

11

Central locking component

12

sear

20

axially displaceable shaft

20 '

20 in locking position

20 ''

20 in unlocking position

21

Carrier device at 20

22

eccentric extension of 20

22 '

22 in locking position

22 "

22 in unlocking position

23

Face of 22

23 '

23 in locking position

23 "

23 in unlocking position

30

push-button

31

lock cylinder

31 '

31 in "Hotel Position"

31 "

31 in "normal position"

31 '' '

31 in special situation

32

eccentric extension of 31

32 '

32 in "hotel position"

32 "

32 in "normal position"

32 '' '

32 in special situation

33

Face of 32

33 '

33 in "Hotel position"

33 ''

33 in "normal position"

33 '' '

33 in special situation

34

key slot

34 '

34 in locking position

34 "

34 in "normal position"

34 '' '

34 in special situation

35

key

35 '

35 in "hotel position"

35 ''

35 in "normal position"

40

locking disc

41

Recess in 40

42

Unlocking area of 41

43

Special area of 41

50

dashboard

51

Lead in 50th

φ ₁

angle of rotation

φ ₂

angle of rotation

Claims (20)

1. Actuating device for a lock, especially in a motor vehicle,
   having an actuating element (30) and a transmission element (20) with a capacity for linear movement when actuated when it is operatively connected,
   while a catch device (21) is provided on the transmission element (20) to transmit the movement of the transmission element to a release element (12) which cooperates with an actuating linkage for the lock,
   characterised in that the transmission element is constructed as an axially movable shaft (20) with an eccentrically located extension (22), which shaft can be rotated between a plurality of rotational positions by mean of a first securing device (11),
   and the actuating element comprises an area (31) with an eccentrically located extension (32), which area can be rotated between a plurality of rotational positions by means of a second securing device and is movable substantially in the axial direction,
   the end faces (23, 33) of the extensions facing each other and overlapping each other in at least one, but not every, relative rotational position which can be selected,
   at least one rotational position of one of the extensions (22, 32) being provided in which there is no overlapping of the end faces (23, 33), regardless of which selectable rotational position the other extension (33, 23) happens to occupy.
2. Actuating device according to claim 1, characterised in that, between the actuating element (30) and the transmission element (20), there is a locking disc (40) which has an opening (41) the shape of which allows the extension (32) of the actuating element (30) to pass through in at least one, but not every one, of its pre-determined rotational positions.
3. Actuating device according to one of claims 1 or 2, characterised in that the actuating element is a push button (30) with the capacity for linear movement.
4. Actuating device according to claim 3, characterised in that the second securing device is a cylinder lock which is integrated into the push button (30) and can be locked and unlocked with the aid of a mechanical key (35).
5. Actuating device according to one of claims 1 to 3, characterised in that the second securing device is an electrical lock.
6. Actuating device according to one of claims 2 to 5, characterised in that the locking plate (40) is mounted to be non-rotational.
7. Actuating device according to one of claims 2 to 6, characterised in that at least part of the locking plate (40) is designed as an integral part of a housing (10).
8. Actuating device according to one of claims 1 to 7, characterised in that the end face (23) of the shaft extension (22) extends in only one of the two half-planes which are separated from each other by a straight line intersecting the rotation axis at right angles thereto.
9. Actuating device according to claim 8, characterised in that the end face (23) of the shaft extension (22) is approximately in the shape of a segment of a circle, the chord of the segment being set back only slightly from the straight line intersecting the rotation axis.
10. Actuating device according to one of claims 1 to 9, characterised in that the end face (33) of the extension (32) of the actuating element (30) extends in only one of the four quarter-planes which are separated from one another by two straight lines intersecting the rotation axis and one another at right angles.
11. Actuating device according to claim 10, characterised in that the end face (33) of the extension (32) of the actuating element (30) is substantially in the shape of a quarter circle, the point being slightly set back from the rotation axis.
12. Actuating device according to one of claims 1 to 11, characterised in that the shaft (20) can be rotated into an unlocking position (20") and to a locking position (20') rotated at approximately 90° thereto.
13. Actuating device according to one of claims 1 to 12, characterised in that the rotatable area (31) of the actuating element (30) can be turned to an unlocking position (31 ") and to a locking position (31') rotated at about 90° thereto.
14. Actuating device according to one of claims 2 to 13, characterised in that in the unlocking position (31") of the rotatable area (31) of the actuating element (30), its extension (32"), when actuated, can pass through the opening (41) in the locking plate (40), while in the locking position (32') this extension collides, when actuated, with the locking plate (40).
15. Actuating device according to one of claims 1 to 14, characterised in that the locking and unlocking positions of the shaft (20', 20") and of the rotatable area (31', 31") of the actuating element (30) are coordinated with one another such that the end faces (23, 33) of their extensions (22, 32) do not overlap each other when one of the elements is in its locking position.
16. Actuating device according to one of claims 1 to 15, characterised in that another rotational position (31''') of the rotatable area (31) of the actuating element (30) is provided, in which the end face (33''') of its extension (32''') overlaps the end face (23') of the shaft extension (22') in its locking position (22').
17. Actuating device according to claim 16, characterised in that, in the additional rotational position (31"') of the rotatable area (31) of the actuating element (30), its extension (32"'), when actuated, can pass through the opening (41) in the locking plate (40).
18. Actuating device according to one of claims 16 or 17, characterised in that the mechanical key (35) cannot be pulled out in the additional rotational position (31''') of the rotatable area (31) of the actuating element (30).
19. Actuating device according to one of claims 1 to 18, characterised in that the first securing device is a central locking device (11).
20. Actuating device according to one of claims 3 to 19, characterised in that a projection (51) is provided on the motor vehicle in the vicinity of the push button (30), to prevent the push button (30) from being pushed in when the lock is in the locked position by blocking the path of the mechanical key (35).

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