EP2231970B1 - Actuator for an electromechanical rotary locking cylinder and an electromechanical rotary locking cylinder with such an actuator - Google Patents

Description

The invention relates to an actuator according to the preamble of Ansrpuchs. 1

An actuator of this type and an electromechanical rotary lock cylinder with such an actuator is in the International Patent Application PCT / CH 2006/000695 ( WO 2007/073608 ) of December 13, 2006 of the applicant. The rotary lock cylinder has as usual a stator and a rotor and tumblers. In addition to the tumblers the rotary lock cylinder has two locking pins which are locked in the locked position by the actuator, so that these locking pins can only be moved to release the motor when the actuator releases them. Upon insertion of a key in the keyway of the rotary lock cylinder, a pusher member is moved downwardly by the key and the lock pins are biased by a spring therethrough. However, the locking pins can not be moved, they are locked as mentioned. If the key is recognized as authorized by the electronic circuit after reading a code, the actuator releases the locking pins. Due to the biasing by the pusher member, the locking pins are moved to a releasing position so that the rotor can be rotated and the lock can be opened. The electronic circuit immediately falls back into a "sleep mode" after the motor has been actuated. If the key is withdrawn, then the trigger member goes through the action of another spring up to the starting position. A wake-up contact wakes up the electronic circuit and activates the motor, which then locks the locking pins again.

The US-A-2007/0084259 discloses a lock cylinder with an electronic key. A rod-shaped blocking element is supported on a deformable part which can be positioned so that the blocking element releases or blocks a rotor. By means of an access device, the lock cylinder can be transferred from a releasing to a locked state. This is done alternatively by subtracting the key or after a predetermined period of time.

The EP-A-1 505 229 discloses a locking cylinder having an electrically activatable locking mechanism and an electromagnetic drive for adjusting a blocking element. The drive is controlled by an electronic control device based on data one transponder, which is arranged in a key. Again, it is provided that an unlocked lock cylinder is driven after a predetermined period of time to move a blocking element in a blocking position. This can prevent the lock cylinder from being left unintentionally open for a long time.

The US-A-2004/0035160 relates to a locking device with a programmable key. In order to lock a rotor, a blocking element is provided, which can be actuated by a rotor. When the locking device and the door are open, the key is removed. The blocking element then returns to its rest position and a switch, the power supply is interrupted.

The ES-A-2 808 552 discloses a lock cylinder with a locking element that can be operated with a rotor.

The invention is based on the object to provide an actuator of the type mentioned, which works even more robust and reliable and can still be produced relatively inexpensively.

The object is achieved in a generic actuator according to claim 1. When removing the key thus the electronic circuit is woken up in a first step and then delayed the motor is turned on to lock the at least one locking pin on said locking device again. This can be avoided even with very robust and rigid design of the actuator that the engine is turned on too early and jammed the locking device. As a result, in particular a rigid and compact design is possible, which prevents a knocking.

According to the invention, the holding means have a contact element which is mounted on the blocking device and can be pivoted therewith. The contact element thus forms a switching element with two positions. In one position, the switch is closed and opened in the other.

Preferably, the contact element is mounted on a locking lever, which cooperates with said locking pin to lock or release it.

According to a development of the invention, the contact element has two contact tongues, which bridge in a first position two contacts of the electronic circuit and thus hold the engine in said quiescent state and do not bridge said contacts in a second position. The first position is the holding position and the second position is that after the said period of time.

According to a development of the invention it is provided that the locking device comprises a pivotable locking lever and a toothed segment, wherein the toothed segment is disposed between the motor and the locking lever, wherein the locking lever in a first position blocks said at least one locking pin and releases in a second position.

The invention also relates to an electromechanical rotary lock cylinder with such an actuator. The actuator forms a unit with a pusher member. The pusher member may be moved downwardly with the forward end of a key for biasing the at least one locking pin. The locking device here has only the function to lock or unlock the locking pin. The energy for moving the locking pin is applied by the user by moving the pusher member with the key down. The power consumption for operating the engine can therefore be minimized. A battery with which the motor is fed, can have a correspondingly longer life.

According to a development of the invention it is provided that the wake-up contact is switched to a contact element which is connected to the trigger member and with this downward and upward movable. This contact element is preferably designed so that it can be contacted with the key or a separate key. This contact can be used as programming contact, for emergency supply or for other purposes.

According to a development of the invention, the wake-up contact is arranged on a first printed circuit board and the holding contact is arranged on a second printed circuit board. This allows a cost-effective, yet reliable design. The first circuit board and / or the second circuit board are inserted into a housing of the actuator. This allows a very simple, yet precise positioning of the circuit boards with respect to the holding contact.

Further advantageous features emerge from the dependent claims, the following description and the drawings.

Figur 1

schematisch eine räumliche Ansicht eines erfindungsgemässen Aktuators,

Figur 2

eine weitere räumliche Ansicht des erfindungsgemässen Aktuators,

Figur 3

eine weitere Ansicht des erfindungsgemässen Aktuators, wobei dieser in der Sperrstellung gezeigt ist,

Figur 4

eine Ansicht gemäss Figur 3, wobei der Aktuator hier in der entsperrten Position gezeigt ist und

Figur 5

eine räumliche Ansicht eines Kontaktelements.

Embodiments of the invention will be explained in more detail with reference to the drawing. Show it:

FIG. 1

3 is a schematic view of a perspective view of an actuator according to the invention;

FIG. 2

a further spatial view of the inventive actuator,

FIG. 3

a further view of the inventive actuator, wherein this is shown in the blocking position,

FIG. 4

a view according to FIG. 3 wherein the actuator is shown here in the unlocked position and

FIG. 5

a spatial view of a contact element.

The FIG. 1 shows an actuator 1, which has a housing 2, which has a housing upper part 2a and a housing portion 2b and in which an electric motor 4 is mounted. The power supply of the electric motor 4 takes place, for example, via a battery, not shown here, which is electrically connected via contacts 5 to the electric motor 4. In the housing 2, a pusher member 3 is also mounted, which has a rear part 3a and a front part 3b, which engage with mounted actuator 1 in the keyway of an electromechanical rotary lock cylinder, not shown here. With this presser member 3, two locking pins 6 can be biased by inserting a key, not shown here in the keyway. With a locking lever 9, the two locking pins 6 according to FIG. 3 be locked so that they remain in the original position during pretensioning. To the disclosure of the basic structure of such an actuator and an electromechanical rotary lock cylinder is on the already mentioned PCT / CH 2006/000695 directed.

The actuator 1 has an electronic circuit E, which according to the FIG. 1 a first circuit board 13 and a second circuit board 14 has. About the first circuit board 13 two contact tongues 15 are arranged, which form a wake-up switch A with the first circuit board 13. The contact tongues 15 are, as shown, first bent downwards and then upwards and finally form a contact surface 15a which is arranged at the upper end of the front part 3b. If the trigger member 3 is moved downwards by insertion of a key shank into the key channel, then the two contact tongues 15 also move downwards and close the wake-up switch A. As a result, the electronic key is moved Circuit E woken up and turned on after a review of the key code of the motor 4. This one turns in FIG. 3 only indicated worm wheel 21 which is connected to the axis of the motor 4 and with a toothed segment 18 and engaged with toothings 19. The sector gear 18 pivotally mounted with journals 20 pivotally mounted in the housing 2 and arranged above the locking lever 9, which also over Spindle 11 limited in recesses 12 ( Fig. 1 ) of the housing 2 is mounted. The sector gear 18 has a first and a second position. In the first position, the sector gear 18 locks the locking lever 9 in the in FIG. 3 shown position. In the other position, which is a different pivot position, the locking lever 9 is free and can be around the axle 11 in the in FIG. 4 shown position to be pivoted.

The locking lever 9 has at a distance from the journal 11 each have a recess 10, in accordance with each FIG. 3 a foot 8 of a locking element 6 engages. Is the locking lever 9 according FIG. 3 locked by the sector gear 18, the two locking pins 6 can not be moved down. By depressing the trigger member 3 thus the two locking pins 6 can be biased. The provided springs are not shown here. If the locking lever 9, however, free, so the two locking pins 6 in consequence of said bias in the in FIG. 4 shown lower position to be moved. The locking pins 6 are in this case in a guide part 7 ( Fig. 4 ) slidably guided. In this position, the locking pins 6 no longer protrude into the rotor of the rotary lock cylinder and thus release it. The locking lever 9 is in the in FIG. 4 shown pivot position locked by the downwardly moved locking pins 6 by the stop of the feet 8 at one approach 22. The locking lever 9 can thus only in the in FIG. 3 shown starting position to be pivoted when the key is removed and the trigger member 3 and the two locking pins 6 by a spring, not shown here back up into the in FIG. 3 shown position to be moved. Does the locking lever 9 in FIG. 3 achieved position shown, it is locked by a corresponding pivoting movement of the toothed segment 18 again. The two locking pins 6 can then no longer be moved down.

Thus, the motor 4, the sector gear 18 is only pivoted when the locking lever 9 in the in FIG. 3 shown position, a holding contact B is provided which has a contact element 16 which has a first tongue 16a and a longer second tongue 16b. These tongues 16a and 16b are in accordance with FIG. 5 attached to a web 16c, with which the contact element 16 is attached to a web 23 of the locking lever 9, as the FIG. 2 shows. The contact element 16 is latched in particular with the web 16c on the locking lever 9. When the locking lever 9 is pivoted, the two tongues 16a and 16b grind at a first contact 17a or at a second contact 17b of the printed circuit board 14. In the position of the locking lever 9 according to FIG FIG. 4 the contact element 16 connects the two contacts 17a and 17b with each other. By this electrical bridging of the two contacts is held on the electronic circuit E of the motor 4 in the rest position. Even when waking up the electronic circuit E, the motor 4 can therefore not be turned on. However, the contact element 16 is located in the in FIG. 2 shown lower position, so only the first tongue 16a is still in contact with the first contact 17a. The contact between the second tongue 16b and the second contact 17b, however, is canceled. In this switching position, the motor 4 can be switched by the electronic circuit E. However, not before reaching this position. The holding contact B thus ensures that the toothed segment 18 is pivoted by the motor 4 only in the locked position when the locking lever 9 after removal of the key in the FIG. 3 has reached shown position. The holding contact B or holding switch is realized here by electrical contacts. In principle, however, the holding contact B could also be realized, for example, by means of sensors, for example with a Hall sensor.

The inventive actuator 1 can be made of a few and robust parts and with a largely rigid and positive Kraflübertragung. An opening by vibration can be avoided. Since it is ensured by said holding contact that after removing the key in the intended time, the locking pins 6 are locked again, also results in a high reliability. <B> LIST OF REFERENCES </ b> 1 actuator 15a contact area 2 casing 16 contact element 2a Housing top 16a first tongue 2 B Housing bottom 16b second tongue 3 latch element 16c web 3a back part 17 contacts 3b front part 17a first contact 4 engine 17b second contact 5 connections 18 toothed segment 6 locking pins 19 Perforation 7 guide part 20 journal 8th Foot 21 worm 9 locking lever 22 approach 10 recess 23 web 11 journal 12 recess A Weckschalter 13 circuit board B keep in touch 14 circuit board e electronic switch 15 contact tongues

Claims (9)

1. An actuator (1) for an electromechanical rotary lock cylinder, with a motor (4), an electronic circuit (E), at least one locking pin (6) and a locking device (18, 9) with which the at least one locking pin (6) can be locked via the motor (4) in a locking position, wherein the electronic circuit (E) has a waking contact (A) for the purpose of waking the circuit (E), characterised in that holding means (B) are provided, which, after the opening of the waking contact (A) with the removal of a key, prevent a premature switching-on of the motor (4), wherein the holding means (B) have a contact element (16) which is mounted on the locking device (18, 9) and can be pivoted with the latter.
2. The actuator according to Claim 1, characterised in that the contact element (16) is mounted on a locking lever (9), which is mounted such that it can pivot, and which is provided for locking the at least one locking pin (6).
3. The actuator according to one of Claims 1 to 2, characterised in that the contact element (16) has two contact tongues (16a, 16b), which in a first position short-circuit two contacts (17a, 17b) of the electronic circuit (E) and thus keep the electronic circuit (E) in a "sleep mode", and which in a second position do not short-circuit the said contacts.
4. The actuator according to one of Claims 1 to 3, characterised in that the locking device (18, 9) has a pivotable locking lever (9), and a gear segment (18), wherein the gear segment (18) is arranged between the motor (4) and the locking lever (9), and the locking lever (9) locks in a first position and unlocks in a second position.
5. An electromechanical rotary locking cylinder with an actuator (1) according to one of Claims 1 to 5, characterised in that the actuator (1) forms a unit with a latch element (3) and the latch element (3) can be moved downwards with the front end of a key for pretensioning the at least one locking pin (6).
6. The electromechanical rotary locking cylinder according to Claim 5, characterised in that the at least one locking pin (6) has a foot (8), which engages in a locking position in a recess (10) of a locking lever (9).
7. The electromechanical rotary locking cylinder according to Claim 5 or 6, characterised in that the waking contact (A) is connected to a contact element (15a), which is connected to the latch element (3) and can be moved downwards and upwards with the latter.
8. The electromechanical rotary cylinder according to one of Claims 5 to 7, characterised in that the waking contact (A) is arranged on a first circuit board (13) and the holding contact (B) on a second circuit board (4).
9. The electromechanical rotary cylinder according to Claim 8, characterised in that the first circuit board (13) and/or the second circuit board (14) are inserted into a housing (2) of the actuator (1) and positioned in the latter.

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