DE102018106922A1 - Closing device for a fuel filler flap - Google Patents

Abstract

Closing device for a fuel filler flap of a motor vehicle, wherein the closing device comprises an actuating element 1 and is arranged so that the actuating element 1 occupies a closed position with the fuel filler flap closed and can perform an opening movement to open the fuel filler flap, wherein an adjusting mechanism is set up so that the adjusting mechanism Can hold actuator 1 in the closed position and / or lock the locking device and can unlock. A locking device with a modular design and high reliability and robustness can be provided with very low production costs.

Description

The invention relates to a closing device for a fuel filler flap of a motor vehicle, wherein the closing device comprises an adjusting element and is set up so that the control element occupies a closed position with the fuel filler flap closed and can perform an opening movement to open the fuel filler flap.

A fuel filler door closing device is used to properly open, close and close the fuel filler door so that the fuel door does not open unintentionally while driving.

A locking device may further provide a latch for the fuel filler door so that the fuel door can not be opened in a locked state.

The pamphlets DE102008057860A1 . DE102009013247A1 . DE202013001917U1 . DE102014003198A1 and WO2013013654A2 disclose previously known closing devices for a fuel filler flap.

However, there is a need for optimization with regard to the modularity of different equipment variants as well as the reliability and user-friendliness.

The abovementioned features known from the prior art can be combined individually or in any desired combination with one of the objects according to the invention described below.

It is an object of the invention to provide a further developed closing device for a fuel filler flap.

To achieve the object, a closing device for a fuel filler flap of a motor vehicle, wherein the closing device comprises an actuating element and is set up so that the actuator occupies a closed position with the fuel filler flap closed and can perform an opening movement to open the fuel filler flap, wherein an adjusting mechanism is set up that the actuating mechanism can hold the actuator in the closed position and / or lock and unlock the locking device.

An actuating element is usually a mechanical component, which is movably mounted and / or guided to move between at least two positions, so adjusted or posed to be able to. In particular, the actuator has a ratio of length to width and / or thickness or a ratio of length to diameter or maximum diameter of at least three to one and / or at most fifteen to one. A reliable opening of the fuel filler flap can be made possible. Preferably, the actuating element is designed bolt-shaped and / or an adjusting bolt.

Closed tank flap means a closed position of the tank flap. In the closed position, the tank flap is usually aligned with the surrounding outer vehicle panel to form a continuous surface contour.

Starting from the closed position of the fuel filler flap, the fuel filler flap can be opened by applying an external compressive force, e.g. on the outwardly facing sheet metal lining of the fuel filler flap, are pushed beyond the closed position in the opposite direction to the open position of the fuel filler flap. Such overpressing is also referred to as "push". Normally, such a "push" only leads to an entertaining and transitional retention of the fuel filler flap beyond the closed position, ie in the opposite direction to the open position. This is preferably realized by a compression spring, which ensures that the fuel filler flap in an overpressure or "push" returns to the closed position and / or further in the opening direction.

The closed position of the actuating element usually denotes a position on a translation axis of the opening movement of the actuating element. The opening movement may be limited in one embodiment to a particular linear translation component or in another embodiment additionally comprise a rotational component.

The actuating element usually has a longitudinal axis. The translation axis preferably corresponds to the longitudinal axis of the actuating element and / or runs parallel thereto.

If the actuator occupies a closed position with the fuel filler flap closed and can perform an opening movement to open the fuel filler flap, the fuel filler flap with actuator preferably only by a particular loose contact point be coupled to each other such that the fuel filler flap can be moved even with dormant actuator in an open position However, in a movement toward the closed position or beyond can be limited by the actuator in its movement. However, it is also possible in principle, the movement of the actuating element in both directions along the translation axis, so the opening movement and closing movement, via a connecting means between the control element and tank flap with the Couple the movement of the fuel filler flap. Generally, the closing movement of the actuating element is opposite to the opening movement.

In particular, "hold the actuator in the closed position" also "stop the actuator from the closed position of the opening movement" and / or "hold the actuator on reaching the closed position in the closed position" his.

In the adjusting mechanism which can hold the actuating element in the closed position, the holding of the actuating element takes place, in particular, at an interface between a drive and the actuating element. Basically, the actuator is held directly by the actuating mechanism, but not for example by a device on the side of the control element to the tank flap.

In the adjusting mechanism, which can lock and unlock the locking device, the locking and unlocking of the locking device takes place in particular at an interface between one or the drive and the actuating element. In principle, the actuating element is locked and unlocked directly by the adjusting mechanism, but not for example by a device at an interface of the actuating element with the tank flap.

The actuator to hold in the closed position refers in particular to a so-called secondary lock, which ensures that the fuel filler flap is opened either by a "push" on the fuel filler flap and / or by pressing a control knob by releasing the control element and otherwise at least the Control element is held in the closed position to prevent the opening movement of the actuating element and thus opening the fuel filler flap. Releasing the actuator means releasing the hold in the closed position to facilitate the opening movement of the actuator.

Locking and unlocking the locking device refers in particular to a primary lock, which ensures that in a locked state, the secondary lock can cause no opening movement of the actuating element, but only in an unlocked state, the secondary locking the opening movement of the actuating element for opening the Can cause fuel flap. In other words, the primary interlock ensures that the fuel filler flap can not be opened by the secondary interlock.

Locking generally refers to activating a locked state. Unlocking generally refers to activating an unlocked state.

In particular, a locking and / or unlocking can be caused by a central locking.

Alternatively or additionally, locking and / or unlocking can be initiated by operating a control switch.

By a closing device for a fuel filler flap of a motor vehicle, in which an adjusting mechanism is arranged so that the adjusting mechanism can hold the actuating element in the closed position and / or lock and unlock the locking device, it is possible that different equipment variants, to which the following is, can be realized in a similar housing and with predominantly matching components of the locking device. By enabling this modular design, a particularly wide variety of equipment variants can be offered with an overall particularly low production cost. In addition, retrofitting or changing the equipment variants with very little effort is possible.

In addition, a particularly high reliability in terms of functionality over a particularly long life is possible.

A particularly high ease of use can be offered to the user by the locking device according to the invention. For example, by activating the central locking system to lock the vehicle, the driver can also bring the closing device for the fuel filler flap into the locked state automatically and / or by actuating an operating switch in the vehicle cabin.

In one embodiment, a pawl is provided which is adapted so that the pawl can latch in a latching position with the actuating element when the actuator is in the closed position.

Locking means latching and / or generating a positive connection, which blocks the opening movement of the actuating element from the closed position.

Preferably, the latching of the pawl with the actuator is effected by locking a locking element of the pawl with a locking means of the actuating element.

By providing a pawl which is arranged so that the pawl can latch in a latching position with the actuating element when the actuator is in the closed position, the condition for the realization of various Provided adjusting mechanisms for the primary and secondary locking and thus particularly simple allows the modular structure described above.

In one embodiment, the closure device is configured to translate a secondary latch for release and retention of the actuator in the closed position and a primary latch for latching and unlocking the latch by the same pawl.

Release means releasing the actuator held in the closed position. Basically, the actuator executes the opening movement to open the fuel filler flap after releasing.

Secondary locking means a mechanism which, when activated by the user to open the fuel filler flap from the closed position ensures that the actuator for opening the fuel filler flap is released to perform the opening movement for opening the fuel filler flap, and when activated by the user for closing the fuel filler flap from the open position ensures that the actuator is held on reaching the closed position in the closed position, so that the actuator can perform any opening movement to open the fuel filler flap.

Primary locking means another mechanism which, when activated by the user to assume a locked state of the locking device, ensures that when the secondary locking mechanism is activated by the user to open the tank door from the closed position, the actuator is not designed to open the lock Tank flap is released, and upon activation of the further mechanism by the user to take an unlocked state of the locking device, the further mechanism ensures that the mechanism of the secondary lock unhindered release with appropriate activation of the mechanism of the secondary locking the actuator or hold in the closed position can.

Transposing the primary latch and the secondary latch by the same pawl means that only a single pawl is provided to release the actuator, to hold in the closed position, to lock the latch and to unlock the latch.

Additional components, which were otherwise necessary for the realization of the secondary lock, can thus be saved. Similarly, at least a portion of the material that has been released to some extent by the saved components, be used for a particularly robust design of the pawl. A particularly high reliability and longevity with the same or lower material cost and weight can be achieved.

In addition, the complexity of the control can be reduced in fully automated systems, because only one pawl is to be controlled for both the primary locking and for the secondary locking.

In one embodiment, in the implementation of the primary latch and the secondary latch by the same pawl latching between the pawl with the actuator via the same locking element of the pawl, in particular latching lug, and / or the same locking means of the actuating element, in particular recess.

A pawl and / or a locking means with a particularly simple and inexpensive producible form can be made possible.

A particularly compact and simply constructed locking device, which in this way favors the modular design, can be provided.

In one embodiment, a controller is provided that is configured so that upon activation of the primary latch for locking the latch, the secondary latch is prevented from releasing the actuator upon activation of the secondary latch for releasing the actuator.

By this configuration of the control, the implementation of the primary and secondary locking can be realized by the same pawl in a particularly simple manner.

In one embodiment, the locking device is arranged so that the primary locking for locking or unlocking the locking device can be activated by a central locking and / or a control switch.

A central locking means a central control unit of the vehicle for locking and unlocking a plurality of locks for doors and / or flaps of the vehicle.

An operating switch is usually arranged in the vehicle cabin so that the driver can separately ensure that a third party does not, e.g. by pressing the fuel filler flap, the fuel filler flap can open. Similarly, the locking device can usually be unlocked again via the control switch.

A particularly high ease of use can be achieved. If only the activation of the primary locking via the central locking is provided, additional means for activating the primary locking can be saved.

In particular, the central locking and / or the operating switch are preferably connected via a cable with the control of the locking device. In particular, the control switch can be connected to the central locking.

In one embodiment, the locking device is arranged so that the secondary lock for the release of the actuating element for opening the fuel filler flap from the closed position by a control knob and / or a press on the fuel filler flap in the closed position can be activated.

A control knob is usually arranged in the vehicle cabin, so that the driver at the gas station before getting off the fuel filler flap can open automatically and the fuel filler flap so no longer has to touch manually for opening from the closed position.

This also allows a particularly great ease of use can be achieved.

In one embodiment, however, an automatic closing of the fuel filler flap by the control knob is not provided.

In one embodiment, the pawl and / or the adjusting element are such that when the pawl is locked in the locking position with the actuating element in the closed position, a game for a Leerhubbewegung the actuating element is provided in the opposite direction to the opening movement of the actuating element.

In particular, the game is generated by a recess of the actuating element, which in the direction of the longitudinal axis of the actuating element has a greater extent than the latching nose of the pawl.

Leerhubbewegung means a movement, in particular translational movement, the actuating element relative to the pawl.

In particular, the compression spring ensures that the actuating element is biased at least in the closed position for the opening movement. When the pawl is locked to the actuator, the compression spring presses against the actuator to perform the opening movement and the pawl receives this pressure force of the compression spring in particular form-fitting manner, thus blocking the opening movement of the actuating element.

Now, if a manual pressure exerted by the user on the tank flap, which is greater than the pressure force of the compression spring, the actuator, which is force-coupled in the process with the fuel filler flap in the longitudinal direction, pressed by the user against the opening movement and so performs the idle stroke.

In particular, the Leerhubbewegung is limited to the extension of the game in the longitudinal direction of the control element. A wall of the recess of the actuating element can form a stop for the latching nose of the pawl.

Preferably, the extension of the clearance in the longitudinal direction of the actuating element is at least 2%, preferably 5%, particularly preferably 8%, of the extent of the recess in the longitudinal direction of the actuating element, and / or at most 30%, particularly preferably at most 20%. Extension in the longitudinal direction means parallel to the longitudinal axis of the actuating element.

The play for a Leerhubbewegung of the actuating element in the opposite direction to the opening movement of the actuating element can be used to use the secondary latch in an automated manner for releasing the actuating element.

In one embodiment, a sensor, preferably a microswitch, is provided, which is set up such that the sensor, upon detecting the idle stroke movement of the actuating element, causes the activation of the secondary locking for the release of the actuating element.

The detection of the Leerhubbewegung may be provided at 30%, 50%, 75% or 100% of the extension of the game in the longitudinal direction of the control element.

The effort of the user to open the fuel filler flap can be optimally adjusted.

The use of a sensor for detecting the Leerhubbewegung allows in a particularly simple manner, the implementation of the primary lock and the secondary locking by the same pawl. In addition, a sensor can be used which is already provided by default for detecting a closed or opened tank flap. Additional sensors can thus be saved or several different functions can be synergetically enabled by a single sensor.

In one embodiment, the adjusting element is rotatable and / or has a link as positive guidance of a pin fixed to the actuating element for coupling a translational movement with a rotational movement of the actuating element.

Rotary actuator rotatably means rotatable about the longitudinal axis of the actuating element.

Gate means a Nutverlauf on a surface in the longitudinal direction of the actuating element, in particular lateral surface of a bolt-shaped actuating element.

The pin fixed to the actuator means a pin which is fixed at least in the direction of the opening movement or translational movement of the actuator along the longitudinal axis of the actuator and / or in the circumferential direction about the longitudinal axis of the actuator, e.g. through the housing of the locking device.

Preferably, the pin can be translationally movable and in particular spring-biased along the pin axis. The pin is generally dimensioned so that it can slide in the backdrop or Nutverlauf.

Coupling a translational movement with a rotational movement of the actuating element can be implemented, for example, by a bayonet-like arrangement of the slide and the pin.

Thus, at least at one position during a translatory movement, the interaction between pin and link ensures that a translational movement leads to a rotational movement of the actuating element and / or vice versa.

By a rotatable adjusting element and / or an actuating element, which has a backdrop as positive guidance of an actuating element fixed pins for coupling a translational movement with a rotational movement of the actuating element, the adjusting element can be held in the closed position by the interaction between pin and link, in particular at Reaching the closed position, and / or the actuator can be released by pressing, pushing, and / or overpressure of the tank flap in the closed position.

In one embodiment, the secondary latch mechanism or secondary latch mechanism may be implemented by a rotatable actuator having a gate as positive guidance of a actuator fixed pin for coupling translational movement to rotational movement of the actuator. In a further development of this embodiment, the pawl serves only to implement the primary locking.

The invention will be explained in more detail by means of drawings schematically illustrated embodiments and with reference to the drawings, the embodiments and additional advantageous embodiments are described in detail. The aforementioned features may, unless expressly stated otherwise, be combined individually or in combination with further features with the claims and features of the following embodiments and embodiments.

• 1: Schematische Übersicht über Komponente eines Ausführungsbeispiels einer erfindungsgemäßen Schließvorrichtung.
• 2: Detailansicht eines Ausführungsbeispiels mit verrasteter Sperrklinke.
• 3: Schematische Darstellung eines Ausführungsbeispiels mit einem manuell betätigbaren Notentriegelungsmechanismus.
• 4: Schematische Darstellung eines Ausführungsbeispiels mit einem rotierbaren Stellelement mit einer Kulisse.

It shows:

• 1 : Schematic overview of the component of an embodiment of a closure device according to the invention.
• 2 : Detail view of an embodiment with latched pawl.
• 3 : Schematic representation of an embodiment with a manually operated emergency release mechanism.
• 4 : Schematic representation of an embodiment with a rotatable actuator with a backdrop.

In one embodiment, the pawl 2 a Y-shape.

Y-shape means two elongated legs 22 by a body 23 Be connected in a Y-shape. In particular, the legs are 22 and / or the body 23 essentially symmetrical to the longitudinal axis 20 of the actuating element 1 arranged and / or shaped.

A particularly compact and robust version of the pawl 2 It can thus support a particularly high level of reliability and longevity as well as the modular design of the locking device.

Due to the Y-shape, the compression spring 17 and / or the control lever 13 between two legs 22 can be arranged and a particularly compact design can be obtained.

In particular, the pawl rotation axis runs 24 the pawl 2 through the two legs 22 , in particular to the compression spring 17 facing ends. In particular, each of the two legs 22 a pivot bearing, preferably in the form of a pin. The body 23 has in particular a trapezoidal shape, wherein the bevels of the trapezoidal shape of the legs 22 in the direction of the locking element 3 the pawl 2 converge. The thickness of the body 23 takes in particular from the legs 22 in the direction of the locking element 3 from. A particularly advantageous course of force can thus be effected while saving material.

A pawl spring 18 is preferably designed as a spiral spring. In particular, the pawl spring 18 around the pawl rotation axis 24 attached, preferably with spiral turns of the pawl spring 18 around a pin of a leg 22 around. In particular, an elongate arm is that of the pawl spring 18 on the side of the transmission interface 26 the pawl 2 preferably via a particular hook-shaped end with the pawl 2 and / or the body 23 the pawl 2 connected to the pawl 2 in the direction of the actuating element 1 pretension.

A particularly efficient and reliable power transmission from the pawl spring 18 on the pawl 2 can be made that way.

In particular, the pawl spring 18 with the body 23 the pawl 2 preferably in the vicinity of the latching element 3 the pawl 2 connected. The pawl spring 18 can so by a power-optimized arrangement and the extra large lever arm even with a relatively small dimensioned pawl spring 18 the friction of the drive 26 . 27 . 28 and / or seal 29 of the drive 26 . 27 . 28 overcome.

In one embodiment, the pawl 2 by a drive 26 . 27 . 28 be moved into the locked position and out of the detent position. A particularly high ease of use can thus be achieved.

In one embodiment, the drive comprises 26 . 27 . 28 an electric motor 27 , A particularly simple control of the drive 26 . 27 . 28 can be made that way.

In one embodiment, the drive comprises 26 . 27 . 28 a gearbox interface 26 the pawl 2 for transmitting a driving force and / or driving movement of the electric motor 27 on the pawl 2 , The transmission interface is preferred 26 shaped so that a gear or a pinion driving force and / or drive movement to the pawl 2 can transfer. Preferably, the transmission interface 26 shaped as a tooth profile.

A particularly reliable force and motion transmission can be achieved through the transmission interface 26 be achieved. In addition, a continuous motion coupling over the entire travel range of the pawl 2 particularly easy to be realized.

In one embodiment, the pawl is over an entire range of movement of the pawl with a drive movement of the drive 26 . 27 . 28 motion-coupled.

Range of movement of the pawl 2 means all movement positions, which by the pawl 2 are reachable.

The pawl is preferred 2 rotatable about the pawl pivot axis 24 stored. The ranges of movement of the pawl 2 then corresponds to the range of rotation of the pawl 2 between a turn restrictor in each direction of rotation. When mounted, a turn restrictor may be the actuator. One or all turn limiters can also be controlled by the gear interface 26 be provided, which upon reaching one end of the transmission interface 26 a turning of the pawl 2 blocked beyond the end.

Motion coupled means that a drive movement of the drive 26 . 27 . 28 always to a movement, in particular rotation about the pawl rotation axis 24 , the pawl 2 leads and vice versa. A separate drive movement without moving the pawl 2 is not possible then. In particular, the movement coupling is subject to a transmission ratio, wherein a drive movement, for example a revolution of a drive axle of an electric motor 27 , to a rotation of the pawl 2 by a certain fraction of a revolution, for example at least 1 °, preferably 3 °, and / or at most 20 °, preferably at most 15 °.

Characterized in that the pawl over an entire range of movement of the pawl with a drive movement of the drive 26 . 27 . 28 Motion coupled, can be a particularly robust and reliable locking and releasing the pawl 2 done by the secondary latch and / or primary latch. Likewise, the pawl spring 18 Frictional resistance of the drive 26 . 27 . 28 overcome efficiently.

In one embodiment, the transmission interface 26 the pawl 2 on an elongated arm 25 the pawl 2 arranged and / or extends substantially parallel to the locking element 3 the pawl 2 , ie in the direction of the latching movement of the latching element 3 with the locking means 4 of the actuating element 1 ,

In particular, the transmission interface extend 26 and / or the elongated arm 25 the pawl 2 essentially parallel to the locking element 3 the pawl 2 ,

Substantially parallel means a deviation of plus and / or minus 15 °.

In particular, the elongated arm covers 25 the locking element 3 the pawl 2 in the direction of the pawl rotation axis 24 predominantly or completely.

Arranging the gearbox interface 26 on an elongated arm 25 the pawl 2 allows a targeted adjustment of the effective direction and the conversion ratio of the driving force and drive movement, a particularly efficient force and motion transmission, and a particularly simple and compact realization of a movement coupling over the entire range of motion of the pawl 2 ,

The parallel rectilinearity of the elongated arm 25 with the gearbox interface 26 to the locking element 3 the pawl 2 causes a particularly high efficiency.

Because of the transmission interface 26 on an elongated arm 25 the pawl 2 is arranged and / or substantially parallel to the locking element 3 the pawl 2 extends, can be a particularly robust and reliable locking and releasing the pawl 2 done by the secondary latch and / or primary latch. Likewise, the pawl spring 18 Frictional resistance of the drive 26 . 27 . 28 overcome efficiently.

In one embodiment, the transmission interface runs 26 and / or the arm 25 the pawl 2 arcuate about a pawl pivot axis 24 ,

Arcuate refers to the parent extension, with a tooth-shaped profile as a transmission interface 26 for a gear or pinion 28 arcuate about a pawl pivot axis 24 can run. This is for example in 1 clearly shown.

A constant conversion ratio and efficient power and motion transmission from the drive 26 . 27 . 28 on the pawl 2 can be made very easy.

In one embodiment, the drive comprises 26 . 27 . 28 a pinion 28 for directly transmitting the driving force and / or driving movement of the electric motor 27 on the transmission interface 26 and thus the pawl 2 ,

In one embodiment, a seal 29 provided, which the drive axis of the electric motor 27 seals and / or between the pinion 28 and a housing of the electric motor 27 is arranged.

A long service life of the drive can be obtained in this way.

In one embodiment, a controller is 5 intended. In particular, the controller 5 with the central locking 6 connected to the vehicle. Preferably, the controller 5 with a control switch 7 connected for the primary interlock. The control is preferred 5 with a control knob 8th connected for secondary locking.

Generally, the locked state is taken when the pawl 2 is in the rest position and / or the controller 5 a release of the pawl from the detent position does not allow, even if the controller 5 a signal to release the pawl 2 , eg by the control knob 8th , had received.

Generally, the unlocked state is taken when the controller 5 a release of the pawl 2 out of the rest position allows when the controller 5 a signal to release the pawl 2 had received.

As in the 2 and 3 shown, can be a control lever 13 be provided, between the compression spring 17 and the actuator 1 is arranged.

In the simplest case, the control lever is used 13 the leadership of the compression spring 17 , the triggering of the microswitch 10 and / or a reliable power transmission parallel to the longitudinal axis 20 of the actuating element 1 from the compression spring 17 on the actuator 1 ,

In one embodiment, the closure device comprises an emergency release device with a rotatable emergency release lever 30 , with the help of which the pawl 2 in particular against the force of the pawl spring 18 and / or the frictional resistance of the drive can be pivoted from the detent position.

An emergency release rope 31 , which can be manually tightened for a Notenriegeln used to turn the emergency release lever 30 , The emergency release cable is preferred 31 with the emergency release lever 31 about a tail 32 coupled, which has an opening 19 for an emergency release lever arm 33 of the emergency unlocking lever 31 provides. When the emergency unlocking rope 31 is pulled, there is a transformation of the tensile force and pulling movement over the opening 19 traversing emergency release lever arm 33 in a rotation and a torque of the emergency release lever 31 who the pawl 2 moved from the detent position and the engagement with the actuator.

In the event of failure of the adjusting mechanisms for release of the actuating element, after an accident and / or eg in the event of a power failure, the fuel filler flap 21 be opened in this way by the device for emergency release always manually.

The 4 shows the embodiment in which the mechanism of the secondary lock or the secondary lock by a rotatable actuator 1 is implemented, which is a backdrop 11 as positive guidance of an actuator 1 fixed pins 12 for coupling a translational movement with a rotational movement of the actuating element 1 having. In the in 4 the embodiment shown serves the pawl 2 only to implement the primary interlock.

The actuator 1 indicates at the end which of the fuel filler flap 21 facing or the compression spring 17 turned away, a pivot bearing 16 on.

In particular, a control lever 13 be provided, which is in the direction of the longitudinal axis 20 of the actuating element 1 between the compression spring 17 and the actuator 1 is arranged and a pressing force from the compression spring 17 on the actuator 1 can transfer.

The control lever 13 is especially in the direction of the longitudinal axis 20 of the actuating element 1 movably supported and / or guided, but preferably rotationally fixed to the longitudinal axis 20 set up.

The control lever 13 can a locking contour 14 exhibit as a stop for a wing 15 of the actuating element 1 to serve in the closed position when the actuator 1 has taken a closing angle rotation position.

Rotational position of the actuating element 1 means the angle of rotation of the control element 1 to the longitudinal axis 20 of the actuating element 1 which may be substantially between an opening angle rotation position and closing angle rotation position.

When the user opens the opened fuel door 21 closes and thus the actuator 1 against the opening movement direction along the longitudinal axis 20 against the force of the compression spring 17 is moved by the interplay of the backdrop 11 with the pin 12 the rotational position of the actuating element by a rotation of the actuating element 1 from the opening angle turning position to the closing angle turning position. The wing 15 has an outer contour, the locking contour only in the opening angle rotation position or closing angle rotation position 14 can happen and when turning the actuator again 1 through the locking contour 14 positive locking with the control lever 13 is connected. The control lever 13 In turn, it may be limited in the translational mobility such that a movement in the opening direction beyond the closed position of the actuating element is blocked. Turning the control element 1 under installation on the control lever 13 can thus be possible within a Leerhubs to the wing 15 and the locking contour 14 get in and out of engagement. Likewise, the pin 12 be so movable in pin-axis set that, depending on the position of the actuator 1 and / or the control lever 13 the pin 12 from the backdrop 11 be lifted out and / or leave the scenery.

A push-push actuator mechanism for releasing and holding the actuator 1 in the closed position can be realized.

Alternatively or additionally, in particular in 8th and 10 Shown scenery along with corresponding description parts and the features of claims 1 to 6 together with corresponding description parts of the document WO2013013654A2 incorporated into the present application by reference, wherein the locking bolt is to be equated with the present adjusting bolt. According to claim 1, the lock for a tank or tailgate in a vehicle is equipped with an adjustable by opening and closing the tank or tailgate between an open and a closed position locking bolt, wherein the locking bolt in the housing of the locking in the direction of its longitudinal axis and is force-fed about its longitudinal axis against the force of a compression spring. Claim 2 provides that with respect to the locking bolt as a positive guide on the lateral surface thereof is a self-contained backdrop and / or that serves in relation to the housing as a positive guide guided in the bolt-side link pin. Claim 3 provides that the link has two opposite, substantially diagonal sections. Claim 4 provides that the backdrop is bevelled in their vertices. Claim 5 provides that between the two diagonal sections serving to secure a holding position of the locking bolt in its closed state gate section is provided at the upper end of the gate. And claim 6 provides that the link section is formed substantially V-shaped.

The 2 and 3 show exemplary embodiments of a closing device according to the invention for a tank flap 21 , The actuator 1 is designed as an adjusting bolt, is along a longitudinal axis 20 of the adjusting pin translationally guided and by a compression spring 17 in an opening direction biased. The adjusting bolt is through a tank flap interface with the tank flap 21 connected, that at least over a predefined area during a movement of the adjusting bolt in the opening direction, the fuel filler flap moves in the direction of an open position and upon movement of the adjusting bolt in a closing direction, the tank flap 21 moved in the direction of a closed position.

In these embodiments, the adjusting bolt can only perform a translational movement and no rotational movement. The tank flap 21 can only be opened and closed, but not rotated like a rotatable shutter.

The pawl 2 that have a pinion 28 through the electric motor 27 be moved into the detent position, held there and moved out of the detent position, ie, released, ejected, released, released or swung out, can, is by the pawl spring 18 biased in the direction of the locking bolt.

The adjusting bolt has a recess as a locking means 4 for locking with a latching nose as a blocking element 3 the pawl 2 in the locked position, when the fuel filler flap 21 is in a closed position. The recess points in the direction of the longitudinal axis 20 a greater extent than the detent of the pawl 2 , In the closed position of the fuel filler flap 21 pushes the compression spring 17 the adjusting bolt in the direction of the longitudinal axis 20 against the locking lug, so that on the side facing away from the tank flap interface of the locking lug a game for a stroke or idle stroke of the adjusting bolt is formed relative to the locking lug.

An opening of the fuel filler flap 21 starting from its closed position can manually by an external pressurization, ie push or overpressure on the fuel filler flap 21 be effected. The external pressure force is from the tank flap 21 transferred via the tank flap interface on the adjusting bolt, so that the adjusting bolt a lifting movement against the force of the compression spring 17 whose stroke maximum of the expansion of the game in the direction of the longitudinal axis 20 equivalent. A microswitch 10 is activated by the lifting movement, whereby a control 5 the drive 26 . 27 . 28 for ejecting or releasing the pawl 2 is controlled. The pawl 2 is thus by the drive against the force of the pawl spring 18 ejected from the detent position. The now released adjusting bolt is through the compression spring 17 moves in the opening direction and thus opens the fuel filler flap 21 ,

After the opening process, the drive 26 . 27 . 28 disabled. Because the force of the pawl spring 18 greater than the frictional resistance of the drive, the pawl 2 pressed with the locking lug against the adjusting bolt, but outside the recess.

A closing of the fuel filler flap 21 can now also manually by an external pressurization (push) on the fuel filler flap 21 be effected. The external pressure force is from the tank flap 21 transferred via the tank flap interface on the adjusting bolt, so that the adjusting bolt a lifting movement against the force of the compression spring 17 performs until the catch of the pawl 2 locked with the recess, so it engages in the recess. The tank flap 21 is now in the closed position or closed position.

A locking of the closing device for blocking an opening operation by an external pressure or push is realized in that the control 5 also when activating the microswitch 10 no ejection or release of the pawl 2 causes. The central locking 6 or a control switch 7 for the user can for a corresponding control of the control 5 be provided to activate the locked state. Apart from an emergency release, the fuel filler flap can then be opened only by an unlocked closing device by the external pressurization.

The unlocking of the locking device is also done by the central locking 6 or a control switch 7 for the user, the appropriate driving the control 5 to activate the unlocked state result.

At the in 4 shown embodiment allows the actuator designed as an adjusting bolt 1 along a longitudinal axis 20 the adjusting bolt a translational and rotational movement of the adjusting bolt, wherein the compression spring 17 in an opening direction in the direction of the longitudinal axis 20 of the adjusting bolt is biased. The adjusting bolt is connected by a tank flap interface with the tank flap so that at least over a predefined area during a movement of the adjusting bolt in the opening direction, the fuel filler flap moves in the direction of an open position and upon movement of the locking bolt in a closing direction, the tank flap in the direction of a closed position emotional. A rotary bearing allows the adjusting bolt to rotate in relation to the longitudinal axis 20 non-rotating tank flap.

Through the interplay of the scenery 11 with the pin or pin 12 a translational movement of the adjusting bolt leads to a rotational movement of the adjusting bolt. The tank flap 21 can only opened and closed, but not rotated like a rotatable shutter.

In the closed position of the fuel filler flap 21 the adjusting bolt has taken a blocking angle position, in which the adjusting bolt by the interaction of the scenery 11 , the pin 12 and / or the control lever 13 is held.

Opening the fuel filler flap from its closed position can be effected manually by an external pressurization, ie push or overpressure, on the fuel filler flap. The external pressure force is transmitted from the tank flap via the tank flap interface on the adjusting bolt, so that the adjusting bolt a lifting movement against the force of the compression spring 17 performed, whereby by the interaction of the scenery 11 , the pin 12 and / or the control lever 13 the adjusting bolt is rotated from the closing angle position and released. The now released adjusting bolt is through the compression spring 17 moves in the opening direction and thus opens the fuel filler flap 21 ,

Closing the fuel filler flap can now also manually by an external pressurization, ie push on the fuel filler flap 21 be effected. The external pressure force is from the tank flap 21 transferred via the tank flap interface on the adjusting bolt, so that the adjusting bolt a lifting movement against the force of the compression spring 17 accomplished, until through the interplay of the scenery 11 with the pin 12 the locking angle position of the adjusting bolt is reached. The tank flap is now in the closed position and is there by the interaction of the scenery 11 , the pin 12 and / or the control lever 13 held.

A locking of the locking device for blocking an opening operation by an external pressurization, ie push, can be realized in that a pivotable pawl is provided, which can be moved by the drive in a latching position with the adjusting bolt. In the locking position engages a detent of the pawl in a recess of the adjusting bolt, so that a translational and rotational movement of the actuating bolt blocked and thus opening the fuel filler flap can be prevented. The central locking 6 or a control switch 7 for the user may be provided for a corresponding driving of the drive for the activation of the locked state. Apart from an emergency release, the fuel filler flap 21 then be opened only by an unlocked closing device by the external pressurization.

The unlocking of the locking device is carried out by a retraction of the pawl from the detent position. The central locking 6 or an operating switch for the user may be provided for a corresponding activation of the drive to activate the unlocked state.

In particular, all in the 1 to 4 illustrated embodiments, a further or alternative variant may be realized, which works as follows.

In the closed position of the fuel filler flap 21 is the control element 1 with the pawl 2 locked. The compression spring 17 pushes in the direction of the longitudinal axis 20 of the actuating element 1 against the actuator 1 ,

An opening of the fuel filler flap 21 starting from its closed position can now automatically especially exclusively by pressing a control button 8th caused by the user by which the drive 26 . 27 . 28 for releasing or ejecting the pawl 2 can be controlled. The pawl 2 is thus by the drive against the force of the pawl spring 18 moved out of the detent position and thus released.

In the embodiment with the actuator 1 with the backdrop 11 may also have a triggering contour on the pawl 2 , the control lever 13 and / or the actuator 1 be provided so that the actuator 1 by releasing the pawl 2 is rotated and the actuator 1 solved in this way for an opening movement.

Anyway, the now solved actuator 1 through the compression spring 17 perform the opening movement in the opening direction to the tank flap 21 to open.

After the opening process, the drive 26 . 27 . 28 disabled. Because the force of the pawl spring 18 greater than the frictional resistance of the drive 26 . 27 . 28 and / or the seal 29 , the pawl becomes 2 with the locking element 3 , in particular latching lug, against the actuator 1 pressed, but outside the locking means 4 , in particular recess. The pawl 2 So it is against the lateral surface of the actuator 1 pressed, where it can slide along with a movement of the actuating element.

A closing of the fuel filler flap 21 can now manually by an external pressurization, ie push, on the fuel filler flap 21 be effected. The external pressure force is transferred from the tank flap to the actuator via the tank flap interface 1 transferred, so that the actuator 1 a lifting movement against the force of the compression spring 17 performs until the pawl 2 with the actuator 1 latched, in particular the locking element 3 with the locking means 4 , Preferably, the locking lug of the pawl 2 with the recess of the actuating element 1 , The tank flap 21 is now in the closed position, ie closed position.

A locking of the closing device for blocking an opening operation by an external pressurization, ie push, is realized in that the control 5 also when activating the control knob 8th to open the fuel filler flap 21 no release of the pawl 2 causes.

The central locking 6 or a control switch 7 for the user can for a corresponding control of the control 5 be provided to activate the locked state. Apart from an emergency release, the fuel filler flap 21 then only with an unlocked locking device in particular only by pressing the control knob 8th be opened.

The unlocking of the locking device is also done by the central locking 6 or one or the operating switch 7 for the user, the appropriate driving the control 5 to activate the unlocked state result.

In particular, the adjustment mechanism includes a secondary latch mechanism and another primary latch mechanism.

Preferably, the actuating mechanism comprises a drive 27 . 28 . 29 and a controller 5 as well as one or only one pawl 2 ,

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102008057860 A1 [0004]
• DE 102009013247 A1 [0004]
• DE 202013001917 U1 [0004]
• DE 102014003198 A1 [0004]
• WO 2013013654 A2 [0004, 0120]

Claims (15)

Closing device for a fuel filler flap of a motor vehicle, wherein the closing device comprises an actuating element (1) and is arranged so that the control element (1) occupies a closed position with the fuel filler flap closed and can perform an opening movement to open the fuel filler flap, characterized in that an adjusting mechanism so is set up that the adjusting mechanism can hold the actuating element (1) in the closed position and / or lock and unlock the locking device. Locking device according to the preceding claim, characterized by a pawl (2), which is arranged so that the pawl (2) in a latching position with the adjusting element (1) can lock when the adjusting element (1) is in the closed position. Locking device according to the preceding claim, characterized in that the locking device is such that there is a secondary lock for releasing and holding the adjusting element (1) in the closing position and a primary locking for locking and unlocking the locking device by the same locking pawl (2 ) is implemented. Locking device according to the preceding claim, characterized in that in the implementation of the primary locking and the secondary locking by the same pawl (2) the locking between the pawl (2) with the adjusting element (1) via the same locking element (3) of the pawl (2 ), in particular latching lug, and / or the same latching means (4) of the actuating element (1), in particular recess takes place. A locking device according to the preceding claim, characterized by a controller (5) configured to prevent the secondary lock from being activated upon activation of the primary lock for locking the locking device, upon activation of the secondary lock for releasing the control element (1 ) to release the actuator (1). Locking device according to one of the three preceding claims, characterized in that the locking device is arranged so that the primary lock for locking or unlocking the locking device by a central locking (6) and / or an operating switch (7) can be activated. Locking device according to one of the four preceding claims, characterized in that the locking device is arranged so that the secondary lock for releasing the actuating element (1) for opening the fuel filler flap from the closed position by a control knob (8) and / or pressing on the Tank flap in the closed position can be activated. Locking device according to one of the six preceding claims, characterized in that the pawl (2) and / or the adjusting element (1) are such that when the pawl (2) is latched in the locking position with the adjusting element (1) in the closed position , a play (9) for a Leerhubbewegung of the adjusting element (1) in the opposite direction to the opening movement of the adjusting element (1) is provided. Locking device according to the preceding claim, characterized by a sensor, preferably a microswitch (10), which is arranged so that the sensor, upon detecting the Leerhubbewegung the actuating element (1) causes the activation of the secondary lock for the release of the actuating element (1). Locking device according to one of the preceding claims, characterized in that the adjusting element (1) is rotatable and / or a link (11) as positive guidance of the actuator fixed pins (12) for coupling a translational movement with a rotational movement of the actuating element (1) , Locking device according to one of the preceding claims, characterized in that the pawl (2) has a Y-shape. Locking device according to one of the preceding claims, characterized in that the pawl (2) by a drive (26, 27, 28) can be moved into the locking position and out of the detent position. Locking device according to the preceding claim, characterized in that the pawl (2) is movement-coupled over a whole range of movement of the pawl (2) with a drive movement of the drive (26, 27, 28). Locking device according to one of the preceding claims, characterized in that a transmission interface (26) of the pawl (2) on an elongated arm (25) of the pawl (2) is arranged and / or substantially parallel to the latching element (3) of the pawl ( 2) extends. Locking device according to the preceding claim, characterized in that the gearbox interface (26) and / or the arm (25) of the Pawl (2) extends arcuately about a pawl rotation axis (24).

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