DE10206534A1 - Key for a motor vehicle has both electronic and emergency mechanical operating functions - Google Patents

Abstract

A key (1) for a motor vehicle comprises an electronic key with a key head (31) and a part (32) comprising a mechanical emergency key (30) which is connected to the key housing and can be turned between a rest position and a using position.

Description

The commissioning of motor-driven motor vehicles includes the one hand Establishing access authorization to the motor vehicle (closing process, Opening process) and on the other hand the manufacture of the engine starting process Driving authorization for the motor vehicle. For commissioning motor-driven Motor vehicles use vehicle keys that an operator can use Doors of the motor vehicle and one arranged in the interior of the motor vehicle Driver authorization unit (often one that is preferably attached to the steering column Ignition lock) can operate. Car keys are increasing these days Dimensions formed as an electronic key, using an electronic Circuitry generated encoded signals in a particular Frequency range (especially in the HF range or IR range) to the motor-driven Transfer motor vehicle, e.g. to unlock or lock the door locks of the motor-driven motor vehicle and / or to unlock / lock a Drive control unit of the motor-driven motor vehicle.

If through the usually powered by a battery as a power supply electronic keys all for starting the motorized Operations required for the motor vehicle are carried out, d. H. both the manufacture of the Access authorization as well as the establishment of the driving authorization can be with an electronic key that is no longer functional (e.g. due to a Failure of the battery as a power supply or in the event of a malfunction of the electronic circuitry) problems arise for the operator, since then none Access to the motor vehicle is no longer possible (in particular, there is no opening of the doors of the motor vehicle is no longer possible) and / or no longer authorized to drive can (in particular, no engine start can take place). To one Ensure commissioning of the motor-driven motor vehicle in any case (especially with an electronic that is no longer functional Key), is used in an emergency, preferably in the housing of the vehicle key Integrated mechanical key provided as an emergency key with which the Commissioning of the motor-driven motor vehicle by mechanical means can be carried out (especially the doors of the Motor vehicle be opened mechanically).

The invention has for its object to provide a vehicle key with the commissioning of the motor-driven motor vehicle in all cases simple way is made possible.

This object is achieved by the features in the characteristic of Claim 1 solved.

Advantageous configurations of the vehicle key are part of the others Claims.

According to the invention for the commissioning of the motor-driven Motor vehicle, d. H. to establish the access authorization to the motor vehicle with the Operation of the vehicle doors and to establish the driving authorization for the Motor vehicle provided with the implementation of the engine starting process from The vehicle key to be carried by the operator is captive and space-saving Vehicle key housing attached, non-positive in any position and / or positively connected to the housing of the vehicle key mechanical emergency key on; this in the housing of the vehicle key Integrated mechanical emergency key is available to the operator at any time and without additional effort for additional receptacles (such as key rings etc.) are available. The mechanical emergency key can be of two different types Preferred positions are arranged relative to the housing of the vehicle key, in which the mechanical emergency key through a locking device (through Snap locking devices in a receiving device) with respect to the Housing of the vehicle key is fixed: in a rest position for the Normal operation of the vehicle key - here is the key bit of the mechanical one Emergency key in the housing of the vehicle key (in a housing recess of the Housing of the vehicle key) arranged sunk - and in one Use position for emergency operation of the vehicle key - here is the key bit of the mechanical emergency key protruding from the housing of the vehicle key arranged; these two preferred positions can be easily and without large amount of force (free of tractive effort) converted into one another by a rotary movement become.

In normal operation, when an operator requests to start up the Motorized motor vehicle uses the electronic key and through its operation is a bidirectional signal transmission (bidirectional communication) between a transmission unit arranged in the motor vehicle and the electronic key performed. In emergency mode when the cannot be used electronic key is used when the operator requests the commissioning of the motor-driven motor vehicle uses the mechanical emergency key especially for mechanical actuation of the door lock and for mechanical Actuation of the driver authorization unit (in particular the ignition lock); to The mechanical emergency key must be used from the rest position as the starting position be brought into the use position as the end position. For this, the mechanical emergency key from the operator on the key head against the spring force of one connected to the housing, located on the underside of the key head of the mechanical emergency key and integrated in a housing opening Rotary axis of the mechanical emergency key including tension-compression spring vertically upwards in the direction of the axis of rotation from which to accommodate the mechanical emergency key serving housing recess pulled out manually, whereby manual unlocking of the locking unit (by Disengaging the locking means from the receiving device) is effected, whereby the mechanical emergency key is moved from the rest position to a rotating position becomes. In the rotating position (when pulled out) the mechanical Emergency key (especially the key bit of the mechanical emergency key) the axis of rotation can be rotated, which is due to the resting means on one in the extension of the one intended to accommodate the axis of rotation Housing opening trained collar free of tensile force and spaced from the housing is feasible; d. H. the mechanical emergency key can be used when rotating on the one hand are rotated without traction, on the other hand it prevents the mechanical emergency keys graze the top of the case. The rotation of the mechanical emergency key is a rotation angle of 180 ° through the Stop for the locking means acting collar and thus when reaching the Use position (end position) limited. When you release the key head in the mechanical emergency key locks in the position of use due to the Spring preload the tension-compression spring independently and is by the Locking device (locking the locking means in the receiving device) fixed. Due to the non-positive and / or realized in the use position positive connection of the mechanical emergency key with the housing of the Vehicle key is used when using the mechanical emergency key, i.e. H. at the actuation of the door lock or the driver authorization unit (the Ignition lock), the required torque from the housing of the Vehicle key added so that a comfortable operation of the door lock or the Driver authorization unit (of the ignition lock) without much effort for the Operator is enabled. After using the mechanical emergency key can be brought back from the use position to the rest position become. First the mechanical emergency key (the key head of the mechanical emergency key) by the operator due to manual pulling force on Key head disengaged from the use position (the current starting position), then the mechanical emergency key is turned by turning the key head the rotational position rotated by an angle of rotation of 180 ° and thereby also the Key bit moved accordingly, when reaching the rest position (End position of the rotary movement) the key head by the stop of the Latching means on the collar is limited, finally in the end position Key head and thus the mechanical emergency key snapped in and the key bit recessed in the housing recess provided for this purpose.

The mechanical emergency key fulfills a pure emergency function for emergency operation and can therefore be made from a common material in a simple manner be, the material of the mechanical emergency key in particular to the Material of the housing of the vehicle key can be customized; E.g. becomes the mechanical emergency key made of metal or plastic, e.g. out the same plastic material as the housing of the vehicle key, e.g. out Polyamide.

The presented inexpensive vehicle key enables a comfortable one and safe use in a simple manner both in normal operation and in Emergency operation. In particular, the mechanical emergency key is captive and Space-saving integrated in the housing of the vehicle key and therefore without at any time great effort through simple and ergonomic handling for the Operator comfortably available, with the design of the Vehicle key (locking unit and stop for the rotary movement) of the mechanical emergency keys can only be turned to a certain angle can (in particular, only a maximum rotation of 180 ° is possible), automatically engages in the respective preferred position and stable in the preferred position is fixed. Furthermore, due to the simple and robust mechanics and the Structure of the vehicle key (especially the mechanical one Emergency key) from a few individual parts an inexpensive manufacture and a reliable one Use of the vehicle key possible. If the mechanical emergency key and so that the entire vehicle key is made of plastic, is a very Cost-effective and weight-saving implementation of the vehicle key possible.

In connection with the drawing ( FIGS. 1 to 6), the vehicle key for starting up a motor-driven motor vehicle is further explained.

Here shows:

Fig. 1 is an exploded view of the components of the vehicle key,

Fig. 2 is a sectional view of the vehicle key,

Fig. 3 is a perspective view of the vehicle key in the rest position of the mechanical emergency key,

Fig. 4 is a perspective view of the vehicle key when pulling out the mechanical emergency key from the rest position,

Fig. 5 is a perspective view of the vehicle key in turning the mechanical emergency key from the rest position to the use position,

Fig. 6 is a perspective view of the vehicle key in the use position of the mechanical emergency key.

The one to be carried by the operator of the motor-driven motor vehicle In addition to the battery-operated electronic key, the vehicle key has one mechanical emergency key, with which in exceptional cases (emergencies) one Commissioning of the motor-driven motor vehicle can be made.

In normal operation, the motor-driven is started up Motor vehicle after actuation of the example. realized as a radio remote control electronic key through bidirectional communication between the electronic Keys and the motor-driven motor vehicle through data transmission of certain data transmission protocols, e.g. at a Data transmission frequency in the frequency range from 315 MHz to 77 GHz (e.g. at a Data transmission frequency of 433 MHz); this is one in the motor-driven motor vehicle E.g. provided as an antenna transmission unit, for example. in the area the center console of the motor-driven motor vehicle is arranged, for example. in the armrest.

In emergency operation, e.g. in the event that no communication (data transmission) between the electronic key and the motor-driven motor vehicle is possible (e.g. in the area of strong radio interference or when the battery of the Vehicle key), an opening or closing process of the Vehicle doors and an engine start of the motor-driven motor vehicle with the help of mechanical emergency key performed; the motor-driven motor vehicle must have devices for receiving the mechanical emergency key for this purpose (e.g. in the vehicle doors and in the ignition lock).

According to the exploded view of Fig. 1 and in accordance with the sectional representation of Fig. 2 is a printed circuit board 22 as a support body in the housing chamber 11 are integrated in the housing 10 of the vehicle key 1 on which the electronic circuitry for the electronic key 20 and a battery 21 as a power supply for the electronic key 20 are arranged. The mechanical emergency key 30 comprises the key head 31, the horizontally extending from the key head 31 key bit 32, 31 connected to the bottom 33 of the key head, centrally disposed axis of rotation 34, the axis of rotation 34 at least partially enclosing and from the annular formation 37 the axis of rotation 34 as an axial limitation of the axis of rotation 34 limited tension-compression spring 35 and two pins arranged symmetrically to the axis of rotation 34 on the underside 33 of the key head 31 as locking means 36 . The axis of rotation 34 is introduced into the housing opening 12 formed on the end face 14 of the housing 10 , the key bit 32 is inserted in the rest position in the housing recess 13 formed on the top 15 of the housing 10 ; the housing recess 13 is here, for example. formed in such a way that the top 38 of the key bit 32 inserted into the housing recess 13 ends approximately with the top edge 16 of the top 15 of the housing 10 . The collar 17 is formed on the front side 14 of the housing 10 on the top 15 of the housing 10 . Furthermore, a receiving device 18 is formed on the top 15 of the housing 10 from grooves corresponding to the pins 36 , which together with the pins 36 form a locking device. Furthermore, the housing 10 of the vehicle key 1 has an eyelet 19 which can be used for fastening or for storing the vehicle key 1 (for example for attachment to a key ring). The housing 10 of the vehicle key 1 has, for example. the dimensions length × width × height of approx. 65 mm × 35 mm × 20 mm. For example, the housing 10 of the vehicle key 1 is made of plastic, for example. made of polyamide; the mechanical emergency key 30 (ie the key head 31 and the key bit 32 ) is ex. made of the same plastic as the housing 10 of the vehicle key 1 and is, for example. also made of polyamide.

• - Im Normalbetrieb wird der elektronische Schlüssel 20 des Fahrzeugschlüssels 1 verwendet und der mechanische Notschlüssel 30 befindet sich wie in der Fig. 3 dargestellt in der Ruheposition; die Inbetriebnahme des motorangetriebenen Kraftfahrzeugs erfolgt über das auf der Außenseite 40 des Gehäuses 10 des Fahrzeugschlüssels 1 angeordnete Bedienfeld 41, d. h. durch Betätigung der entsprechenden Schaltfläche 42 des Bedienfelds 41 durch den Bediener, wodurch die bidirektionale Kommunikation (die Datenübertragung bestimmter Datenübertragungsprotokolle) mit dem motorangetriebenen Kraftfahrzeug initiiert wird. Der mechanische Notschlüssel 30 ist in der Ruheposition auf der Oberseite 15 des Gehäuses 10 versenkt angeordnet, wobei die Zapfen 36 in die Nuten 18 eingerastet sind; infolge der Federkraft der Zug-Druckfeder 35 wird der mechanische Notschlüssel 30 stabil und verliersicher in der Ruheposition gehalten.
• - Für den Einsatz des mechanischen Notschlüssels 30 im Notfallbetrieb wird wie in der Fig. 4 dargestellt der mechanische Notschlüssel 30 durch den Bediener am Schlüsselkopf 31 ergriffen und entgegen der Federkraft der Zug-Druckfeder 35 in Richtung der Drehachse 34 aus der Ruheposition heraus nach oben gezogen; hierdurch rasten die Zapfen 36 aus den Nuten 18 aus, d. h. die Verriegelung wird gelöst (Ausgangsposition der Drehbewegung) und der Schlüsselbart 32 wird aus der Gehäusevertiefung 13 herausgehoben.
• - Nach dem Hochziehen wird der Schlüsselkopf 31 wie in der Fig. 5 dargestellt durch den Bediener um die Drehachse 34 in Richtung Gebrauchsposition gedreht. Bei dieser Drehbewegung sitzt die Unterseite 33 des Schlüsselkopfs 31 auf dem Kragen 17 auf, so dass der Schlüsselbart 32 ohne Kontakt mit dem Gehäuse 10 gedreht wird, d. h. die Unterseite 39 des Schlüsselbarts 32 kommt nicht mit der Oberkante 16 des Gehäuses 10 in Berührung. Aufgrund dieses Führungskragens 17 ist eine zugkraftfreie und damit bedienerfreundliche Drehbewegung des mechanischen Notschlüssels 30 möglich. Die Drehbewegung des mechanischen Notschlüssels 30 wird nach einem Drehwinkel von 180° durch den Anschlag des Zapfens 36 am Kragen 17 begrenzt, so dass in dieser Endposition der Drehbewegung der Schlüsselkopf 31 und insbesondere der Schlüsselbart 32 des mechanischen Notschlüssels 30 in die entgegengesetzte Richtung wie in der Ausgangsposition der Drehbewegung zeigt.
• - In der Endposition der Drehbewegung wird der Schlüsselkopf 31 wie in der Fig. 6 dargestellt vom Bediener losgelassen und aufgrund der Federkraft der Zug- Druckfeder 35 in Richtung der Drehachse 34 nach unten gezogen; hierdurch rasten die Zapfen 36 in den Nuten 18 ein, d. h. die Verriegelung wird geschlossen und somit der Schlüsselkopf 31 und der am Schlüsselkopf 31 angeformte Schlüsselbart 32 des mechanischen Notschlüssels 30 in der Gebrauchsposition fest mit dem Gehäuse 10 verbunden. In dieser Gebrauchsposition kann der mechanische Notschlüssel 30 sowohl für die Bedienung der Fahrzeugtüren (Öffnungsvorgang bzw. Schließvorgang) als auch für die Bedienung des Zündschlosses (Motorstart) des motorangetriebenen Kraftfahrzeugs ohne großen Kraftaufwand eingesetzt werden.

In Figs. 3 to 6, the different stages in the transition from the rest position of the mechanical emergency key 30 (Fig. 3) to the use position of the mechanical emergency key 30 (Fig. 6) below:

• - In normal operation, the electronic key 20 of the vehicle key 1 is used and the mechanical emergency key 30 is in the rest position, as shown in FIG. 3; The motor-driven motor vehicle is started up via the control panel 41 arranged on the outside 40 of the housing 10 of the vehicle key 1 , that is to say by the operator actuating the corresponding button 42 of the control panel 41 , as a result of which the bidirectional communication (the data transmission of certain data transmission protocols) with the motor-driven motor vehicle is initiated. The mechanical emergency key 30 is sunk in the rest position on the top 15 of the housing 10 , the pins 36 being engaged in the grooves 18 ; due to the spring force of the tension-compression spring 35 , the mechanical emergency key 30 is held stable and captive in the rest position.
• - For the deployment of mechanical emergency key 30 in an emergency operation of the mechanical emergency key as shown in Figure 4 taken and 30 by the operator on a key head 31 against the spring force of the train compression spring pulled 35 in the direction of the axis of rotation 34 from the rest position to the top. ; this causes the pins 36 to disengage from the grooves 18 , ie the locking is released (starting position of the rotary movement) and the key bit 32 is lifted out of the housing recess 13 .
• After pulling up, the key head 31 is rotated by the operator about the axis of rotation 34 in the direction of the use position, as shown in FIG. 5. During this rotational movement, the underside 33 of the key head 31 sits on the collar 17 , so that the key bit 32 is rotated without contact with the housing 10 , ie the underside 39 of the key bit 32 does not come into contact with the upper edge 16 of the housing 10 . Due to this guide collar 17 , a tensile force-free and thus user-friendly rotary movement of the mechanical emergency key 30 is possible. The rotary movement of the mechanical emergency key 30 is limited after a rotation angle of 180 ° by the stop of the pin 36 on the collar 17 , so that in this end position of the rotary movement of the key head 31 and in particular the key bit 32 of the mechanical emergency key 30 in the opposite direction as in FIG Starting position of the rotary movement shows.
• - In the end position of the rotary movement, the key head 31 is released by the operator, as shown in FIG. 6, and is pulled downward in the direction of the axis of rotation 34 due to the spring force of the tension-compression spring 35 ; this causes the pins 36 to engage in the grooves 18 , ie the lock is closed and thus the key head 31 and the key bit 32 formed on the key head 31 of the mechanical emergency key 30 are firmly connected to the housing 10 in the use position. In this use position, the mechanical emergency key 30 can be used both for the operation of the vehicle doors (opening or closing operation) and for the operation of the ignition lock (engine start) of the motor-driven motor vehicle without great effort.

Claims (13)

1. Vehicle key ( 1 ) for starting up a motor-driven motor vehicle, with an electronic key ( 20 ) and a mechanical key ( 30 ) having a key head ( 31 ) and a key bit ( 32 ), characterized in that for starting up the motor-driven motor vehicle with the mechanical emergency key ( 30 ) which is non-positively and / or positively connected to the housing ( 10 ) of the vehicle key ( 1 ) mechanical emergency key ( 30 ) by a rotary movement from a first preferred position as a rest position to a second preferred position as a use position. 2. Vehicle key according to claim 1, characterized in that the key bit ( 32 ) of the mechanical emergency key ( 30 ) is arranged in the rest position in a housing recess ( 13 ) of the housing ( 10 ) and in the use position at least partially via the housing ( 10 ) of the vehicle key ( 1 ) protrudes. 3. Vehicle key according to claim 1 or 2, characterized in that the key bit ( 32 ) of the mechanical emergency key ( 30 ) is arranged differently oriented in the use position by 180 ° with respect to the rest position. 4. Vehicle key according to one of claims 1 to 3, characterized in that the housing ( 10 ) of the vehicle key ( 1 ) and the key head ( 31 ) of the mechanical emergency key ( 30 ) effecting a locking of the mechanical emergency key ( 30 ) in the two preferred positions Have means ( 18 , 36 ). 5. Vehicle key according to claim 4, characterized in that on the top ( 15 ) of the housing ( 10 ) of the vehicle key ( 1 ) at least one groove ( 18 ) is arranged, and that on the housing ( 10 ) of the vehicle key ( 1 ) facing underside ( 33 ) of the key head ( 31 ) of the mechanical emergency key ( 30 ) at least one pin ( 36 ) is arranged, which engages in at least one groove ( 18 ) when a preferred position is reached. 6. Vehicle key one of claims 1 to 5, characterized in that on the underside ( 33 ) of the key head ( 31 ) of the mechanical emergency key ( 30 ) in a housing opening ( 12 ) of the housing ( 10 ) of the vehicle key ( 1 ) mounted axis of rotation ( 34 ) is formed. 7. Vehicle key according to claim 6, characterized in that on the upper side ( 15 ) of the housing ( 10 ) of the vehicle key ( 1 ) a housing opening ( 12 ) extending collar ( 17 ) is formed. 8. Vehicle key according to claim 7, characterized in that the axis of rotation ( 34 ) of the mechanical emergency key ( 30 ) is surrounded by a tension-compression spring ( 35 ) through which the key head ( 31 ) of the mechanical emergency key ( 30 ) when reaching a preferred position automatically engages in the housing ( 10 ) of the vehicle key ( 1 ). 9. Vehicle key according to one of claims 7 or 8, characterized in that when the mechanical emergency key ( 30 ) rotates, the key bit ( 32 ) of the mechanical emergency key ( 30 ) rests on the collar ( 17 ). 10. Vehicle key one of claims 1 to 9, characterized in that the key bit ( 32 ) of the mechanical emergency key ( 30 ) consists of plastic. 11. Vehicle key one of claims 1 to 10, characterized in that the mechanical emergency key ( 30 ) consists of plastic. 12. Vehicle key one of claims 1 to 11, characterized in that the housing ( 10 ) of the vehicle key ( 1 ) and the mechanical emergency key ( 30 ) consist of the same plastic. 13. Vehicle key one of claims 1 to 12, characterized in that the electronic key ( 20 ) is designed as a radio remote control.