door handle device, door handle arrangement

Abstract

Door handle device (6) for a locking element (1), in particular a door (2) or flap, of a motor vehicle, with a door handle (9) which is pivotably mounted on a bearing bracket (7) fastened or attachable to the locking element (1) in such a way that it can be displaced from a non-use position (I) sunk into a trim part (4) of the locking element (1) into a use position (II) protruding from the trim part (4), and from the use position (II) into a release position (III) for unlocking a locking device of the locking element (1) and back by overcoming a retaining force acting on the door handle (9) in the use position (II), wherein the door handle (9) is assigned at least one spring element (41) which urges the door handle (9) from the non-use position (I) into the use position (II), comprising at least one emergency actuator (54) which has a movable locking element (51),which, in a normal state of the emergency actuator (54), locks the door handle (9) in the non-use position (I) in a locking position against the force of the spring element (41) and releases it in an emergency state of the emergency actuator (54), characterized in that the emergency actuator (54) has a rotatably mounted gear (22) which engages with a toothed rail (16) arranged on the door handle (9), wherein the locking element (51) cooperates with the gear (22) in the locking position.

Description

The invention relates to a door handle device for a lock of a closing element, in particular a door or flap, of a motor vehicle, having a door handle which is mounted pivotably on a bearing bracket fastened or securable to the closing element in such a way that it can be displaced from a non-use position lowered into the cladding part of the closing element into a use position projecting from the cladding part, and from the use position by overcoming a retaining force acting on the door handle in the use position into a release position in which the lock is opened, and back, wherein at least one spring element is assigned to the door handle, which spring element urges the door handle from the non-use position into the use position.The invention further relates to a door handle arrangement for a motor vehicle, having a closing element, in particular a door or flap, which is arranged displaceably on a body of the motor vehicle, having a lock arranged on the closing element for locking the closing element in a closed position on the body, and having a door handle device which is designed to actuate the lock for releasing the locking action when it is actuated.Door handle devices and door handle arrangements of the type mentioned at the beginning are known from the prior art. For example, the laid-open specification DE 10 2014 113 495 A1 discloses a door handle device with a displaceable door handle which is displaced in normal operation by a spring element from a retracted non-use position into a use position. In an emergency mode, this movement is counteracted by a blocking element which can be moved into a release position only by the use of a mechanical emergency key which is inserted into a locking cylinder of the door handle device, so that the door handle is moved into the use position by the spring force of the spring element. In an emergency, the door handle can be moved further into the release position only if a user first moves the door handle in the direction of the non-use position.From the laid-open specification DE 10 2011 051 617 A1, a further door handle device for a lock of a vehicle is known, in which in an emergency a door handle has to be pulled twice in order to open the lock.The published patent application DE 10 2004 036 663 A1 discloses an external door handle which, in an emergency, can be moved by spring force from a retracted non-use position into a protruding use position by actuating an unlocking button.From the laid-open specification DE 196 42 698 A1, a door handle with a handle part for a motor vehicle is known, wherein the door handle comprises an electromagnetically actuatable locking member which actuates a locking bolt in such a way that in the normal case the handle part is fixed in a basic position, and that in the event of undesired locking of the door lock (emergency), the locking bolt is pulled from the basic position, so that then by pulling on the door handle (or the handle part) the door can be opened.The object of the invention is to provide an improved door handle device which, in the event of an emergency, allows simple and particularly intuitive opening of the lock and of the closing element.The object underlying the invention is achieved by a door handle device having the features of claim 1. This has the advantage that the door handle is automatically moved into the use position in the event of an emergency without a user having to actuate an unlocking button or the like for this purpose. In addition, once the door handle is in the use position, it can be moved immediately into the release position for releasing the closing element or for actuating the lock. This allows, for example, a particularly rapid and simple opening or release of the closing element on a body of a motor vehicle. According to the invention, it is provided for this purpose that the door handle device has an electrically operable emergency actuator which has a movable blocking element which, in the energized state of the emergency actuator in a blocking position, locks the door handle in the non-use position counter to the spring force of the spring element and, in the non-energized state, releases it in a release position. The blocking element is thus displaceable or movable between a blocking position and a release position. As long as the emergency actuator is supplied with electric current, the blocking element is held in the blocking position. However, if the power supply is interrupted, as in the event of an accident or the like, the blocking element moves into the release position, so that the spring force of the spring element displaces the door handle into the use position. As a result, the door handle is ready in an emergency in order to be able to open the lock.According to a preferred development of the invention, an emergency actuator has an electromagnet interacting with the blocking element. In the energized state, the electromagnet interacts with the blocking element in such a way that the electromagnet holds the blocking element in the blocking position. As soon as the current supply is interrupted, the electromagnet is deactivated and the blocking element is movable into the release position. The blocking element can be displaced, for example, by the aforementioned spring element with the movement of the door handle into the release position. Alternatively, a further spring element is assigned to the blocking element, which spring element urges the blocking element into the release, wherein the electromagnet acts against the further spring element in the energized state.Furthermore, it is provided according to the invention that the emergency actuator has a rotatably mounted gear wheel which is in engagement with a toothed rack arranged on the door handle, wherein the blocking element interacts with the gear wheel or the toothed rail in the blocking position. An advantageously guided displacement of the door handle is ensured by the gearwheel and the toothed rack, wherein the interaction of the blocking element with the gearwheel provides a particularly simple and cost-effectively implementable solution for blocking the movement of the door handle. According to an alternative embodiment not belonging to the invention, the gearwheel is coupled to an electric motor which can exert a torque, in particular a blocking torque, on the gearwheel, such that the electric motor and the gearwheel interacting with the toothed rail prevent a movement of the door handle in the energized state of the electric motor. If the current supply fails, the door handle can be displaced into the use position by the spring element.Furthermore, it is preferably provided that the spring element is designed as a helical spring which is held at one end on the bearing bracket and at the other end on the door handle. Preferably, the helical spring is tensioned under tension or under pressure in order to displace the door handle from the non-use position into the use position. The use of the spiral spring provides a space-saving design of the door handle arrangement.Preferably, the spiral spring is arranged at least in sections coaxially with respect to an axis of rotation of the gearwheel, in particular with respect to a shaft carrying the gearwheel. Thus, the spiral spring is guided in a spiral manner in sections about the axis of rotation and / or the shaft, so that it can be used in a particularly compact manner in the door handle arrangement.According to an alternative embodiment of the invention, the door handle device has an actuatable actuator with an electric motor for displacing the door handle, wherein an output shaft of the electric motor is coupled to a drive shaft which carries the gearwheel in a rotationally fixed manner by a transmission. The gear is designed as a worm wheel gear, wherein a worm shaft is arranged on the output shaft and a worm wheel interacting with the worm shaft is arranged on the drive shaft. This ensures advantageous force transmission from the electric motor to the door handle.Furthermore, it is preferably provided that the worm wheel is mounted on the drive shaft in a rotationally fixed manner and axially displaceably in such a way that it disengages from the worm shaft by displacement. As a result, by displacing the worm wheel, decoupling of the electric motor and door handle is made possible in a simple manner. Preferably, a displaceable slide for displacing the worm wheel is assigned to the worm wheel, wherein a spring element urging at least the worm wheel into an disengaged emergency position is assigned to the slide and / or the worm wheel itself. The spring element thus always urges the worm wheel into the disengaged emergency position, in which the mechanical connection of electric motor to door handle is interrupted.The emergency actuator preferably has a holding device which locks the slide in an energized state of the holding device and releases it in an unenergized state or locks it in an unenergized state and releases it in an energized state. The slide is held by the holding device in the actuation or use position, in which the operative connection of electric motor and door handle exists. Only by actuating the holding device with a release current, or when the holding device is de-energized, is the locking of the slide released and the slide or the worm wheel is moved by the spring element into the disengaged emergency position. As a result, the spring element automatically urges the door handle into the use position.The door handle arrangement according to the invention having the features of claim 10 is distinguished by the configuration according to the invention of the door handle device. This results in the advantages already mentioned.The door handle according to the invention is preferably arranged on an outer side of the closing element, so that it is available for third parties to the emergency opening, in order to be able to open the closing element, in particular the door of the motor vehicle, from the outside, if necessary.The invention will be explained in more detail below with reference to the drawings. The only one is shown for this purpose. FIG. 1 shows a closing element with an advantageous door handle device in a perspective illustration, FIG. 2 shows the closing element with the door handle device in a further perspective illustration, FIG. 3 shows a further perspective illustration of the closing element with the door handle device, and FIG. 4 shows an advantageous door handle arrangement in a simplified illustration.FIG. 1 shows a perspective illustration of a closing element 1 of a motor vehicle, in the present case in the form of a door 2, having an advantageous door handle arrangement 43. The door 2 has an outer skin 3 which is formed by a trim part 4. The trim part 4 has an inner side 5 facing away from the outer skin 3. A door handle device 6 is fastened to the inner side 5. For this purpose, the door handle device 6 has a bearing bracket 7 which abuts the inner side of the door 2. The door 2 has a through-opening 8, to which the bearing bracket 7 is assigned in such a way that it extends completely beyond the through-opening 8. The door handle device 6 has a door handle 9, which is shown in FIG. 1 in a rest position I with solid lines. The door handle 9 has an outer contour which corresponds to the inner contour of the through-opening 8, so that the door handle 9 completely or almost completely executes the through-opening 8. In the rest position shown in FIG. 1, an outer side of the door handle 9 terminates flush with the outer skin 3 of the door 2. The door handle 9 is thus arranged recessed in the door 2 in the rest position I.From the rest position I, the door handle 9 can be displaced into a use position II, as shown by a door handle 9 pivoted with dashed lines. From the use position II, the door handle 9 can optionally be moved further into a release position III which protrudes even further from the door 2 than the use position II. For this purpose, the door handle 9 is also again drawn in dashed lines in the release position 9.From the use position II, the door handle 9 can be moved, for example, manually by a user into the release position III, as a result of which a lock of the door 2 coupled to the door handle device 6 is actuated and as a result a locking of the door 2, for example on a body frame of the motor vehicle, is released or released.FIG. 2 shows a further perspective illustration of the door handle device 6 with the door handle 9 in the use position II. Behind the door handle 9 is shown the bearing bracket 7, which carries on the one hand the door handle 9 and on the other hand optionally a locking cylinder 10. The door handle 9 has a removable cover element 11 or flap element, after the removal of which a key can be introduced through an opening of the door handle 9 into a lock cylinder 10 in order to manually actuate the door handle device 6 and in particular a lock coupled thereto.FIG. 3 shows the door handle device 6 in a perspective illustration from behind or with a view of the inner side 5 of the cladding element 4. the door handle 9 has two support arms 12 which are arranged parallel to one another and are straight or, as shown in the present case, are curved and are mounted displaceably by the bearing bracket 7. For this purpose, the support arms 12 each have a plurality of spaced apart guide bolts 13 which are mounted in a guide rail 14 in a longitudinally displaceable manner. The respective guide rail 14 is also curved, wherein the curvature of the guide rail corresponds to the curvature of the support arms 12 and in particular follows a circular path concentrically arranged with respect to the axis of rotation of the door handle, and is held firmly on the bearing bracket 7. The support arms 12 can thus be displaced in a positively guided manner along the guide rail 14 by means of the bolts 13, with the result that the door handle 9 can be displaced from the rest position into the use position in accordance with the curvature, as shown by arrows 15 in the figures.Both support arms 12 each have a toothed rail 16 which is formed integrally with the respective support arm and extends in the longitudinal extent of the respective support arm 12.On the bearing bracket 7 there is furthermore arranged a device 17 for displacing the door handle 9. The device 17 has an actuator 18 which is designed to operate by electric motor. For this purpose, the actuator 18 has an electric motor 19. The electric motor 19 is coupled to the support arms 12 of the door handle 9 by a gear mechanism 20. For this purpose, a drive shaft 21 is rotatably mounted on the bearing bracket 7. Two gearwheels 22 are arranged on the drive shaft 21 at a distance from one another, wherein one of the gearwheels 22 is in engagement with one of the racks 16.Furthermore, a hollow shaft 23 is arranged on the drive shaft 21. The hollow shaft 23 is mounted axially displaceably on the drive shaft 21 and arranged on the latter in a rotationally fixed manner. For this purpose, the drive shaft 21 has a polygonal cross-sectional profile in sections, which forms a polygonal cross-sectional profile of an inner jacket wall of the hollow shaft 23 together with a positive connection in the direction of rotation.On the hollow shaft 23 there is also arranged a worm wheel 24 of the gear 20 designed as a worm wheel gear 25. In the operating position of the worm wheel 24 shown in FIG. 3, the worm wheel 24 interacts with a worm shaft 26 which is arranged on an output shaft 27 of the electric motor 19 in a rotationally fixed manner. The drive shaft 21 is oriented perpendicular to the output shaft 27.The hollow shaft 23 is also assigned a slide 28. The slide 28 is connected in an axial direction in a form-fitting manner to the hollow shaft 23. For this purpose, the hollow shaft 23 has two circumferential grooves 29, in each of which a driving projection 30 of the slide 28 engages, without preventing rotation of the hollow shaft 23.Furthermore, a device 31 is assigned to the slide 28, by means of which device the slide 28 can be axially displaced, wherein, in the event of an axial displacement of the slide 28, the latter carries along the hollow shaft 23 and thus the worm wheel 24. According to the present exemplary embodiment, the device 31 has a lever mechanism 32 which comprises an actuating lever 33 and a coupling rod 34 which is articulatedly connected to the actuating lever 33 and the slide 28. A free end 35 of the actuating lever 33 is located in the region of an opening 36 formed in the bearing bracket 7. the actuating lever 33 is held pivotably on the bearing bracket 7, so that when a compressive force is exerted on the free end 25, the actuating lever 33 is pivoted and, as a result, the slide 28 is displaced by means of the coupling rod 34 in such a way that the worm wheel 24 comes out of engagement with the worm shaft 26, as a result of which the mechanical operative connection between the electric motor 19 and the gearwheels 22 is canceled.After, for example, the cover element 11 has been removed from the door handle 9, a user can operate the actuating lever 33 with a suitable tool, in particular with an emergency key that is suitable or produced for this purpose, by pushing the emergency key through the opening 36 and pressing it against the free end 35 of the actuating lever 33. According to an alternative exemplary embodiment, instead of the opening 36 or in the opening 36, a pushbutton is already held, which a user can actuate from the outside, and which interacts directly with the actuating lever 33, so that an emergency key or an additional tool can be dispensed with.Furthermore, the device 31 advantageously has an electrically operated holder device 37, which is assigned to the slide 28. The holder device 37 is in particular designed as a push-push device and has a receptacle 38 in which an axially protruding projection 39 of the slide 28 engages in the operating position of the slide 28. The holder device 37 holds the projection 39 and the slide 28 in the fastening position or locks it as long as the holder device 37 is supplied with electric current. If the electrical connection is interrupted, the holder device 37 is thus switched off from current, it releases the locking, so that the slide 28 can consequently be axially displaced and in particular displaced into the emergency position, in which the worm shaft 26 and worm wheel 24 are no longer in engagement with one another.According to a further exemplary embodiment, the holding device 37 is designed in such a way that it locks the slide 28 in the fastened position in a current-free manner and has to be supplied with a release current for releasing the slide 28. This makes it possible, in particular, to achieve a specific release of the mechanical connection of worm shaft 26 and worm wheel 24, if necessary. This in particular prevents the door handle from unintentionally moving into the use position II due to a power failure. It can be ensured in this way that the door handle 9 only reaches the use position II when, for example, an accident procedure has been completely concluded and the motor vehicle has come to a standstill, so that the door handle 9 is only available to the emergency forces and does not yet protrude from the trim part 4 as long as the motor vehicle is still moving. In both of the aforementioned cases, the holding device 37 is an emergency actuator 54, which ensures that the door handle 9 reaches the use position II at the right time in an emergency.Optionally, a spring element 40 is assigned to the slider 28 and / or the worm wheel 24, which spring element is arranged as a helical spring on hollow shaft 23 in the present exemplary embodiment, by means of which spring element the slider 28 or the worm wheel 24 is forced into the emergency position.Furthermore, one or more spring elements 41 are advantageously assigned to the drive shaft 21, which are designed in particular as helical springs, which load the shaft with a torque, by means of which the door handle 9 is forced into the use position. For this purpose, the respective spring element 41 is fastened at one end to the drive shaft 21 and at the other end to the housing or to the bearing bracket 7 in such a way that it is prestressed in order to move the door handle 9 into the use position. Preferably, the spiral spring according to the present exemplary embodiment of FIG. 3 is arranged at a free end of the drive shaft 21. According to a further exemplary embodiment, not shown here, the spring element 41 is arranged between the gearwheels 22 on the drive shaft 21, or a spring element 41 is arranged at each of the two free ends of the drive shaft 21 and is prestressed as described above. Alternatively to the configuration as a helical spring, the respective spring element 41 can be configured, for example, as a helical spring or elastomer element which acts on the drive shaft 21 directly or with the interposition of a transmission which converts, in particular, a linearly acting spring force into a torque acting on the drive shaft 21.If the power supply of the holder device 37 fails due to an accident or the like, this leads to the one self-locking worm gear 25 being disengaged by the displacement of the worm wheel 24 into the emergency position, and to the drive shaft 21 being driven to displace the door handle 9 into the use position II due to the omission of self-locking by the spring elements 41. This ensures that in the event of an accident the door handle 9 is automatically moved into the use position. Alternatively, a user can also manually release the self-locking of the transmission 20 by means of the actuating lever 33, as explained above.As shown in FIG. 1, the door handle 9 can be moved from the use position optionally into the release position III by the user, as a result of which a lock of the door 2 can be released, in particular by means of a Bowden cable system 42 only indicated in FIG. 3 and mechanically coupled to the door handle 9.The advantageous door device 2 ensures that, in particular in the event of an emergency, a user, in particular an assistant, can intuitively operate the door handle 9 and, immediately when the door handle 9 is first pulled, can release a lock of the door. In addition, the door device 2 is advantageously implemented in a space-saving manner and ensures a permanent and high level of operational reliability.FIG. 4 shows an alternative exemplary embodiment of the door handle arrangement 43 with the door handle device 6 in a simplified illustration, wherein substantially only the differences will be discussed below. The door handle arrangement has the door handle 9, which is arranged as an outer door handle on the closing element 1, which is designed as a door 2. The door handle 9 is arranged on the bearing bracket 7, which is mounted on an inner side 5 of the door 2. The door handle 9 is arranged in a starting position on the bearing bracket 7 in such a way that it ends at least substantially flush with an outer door side 44 of the door 2. Thus, the door handle 9 is in the initial position in the retracted non-use position I. In this case, the door handle 9 terminates in particular flush with the trim part 4, in particular the outer trim element, of the motor vehicle. The door handle 9 is mounted on the bearing bracket 7 in such a way that it can be pivoted about an in particular horizontal pivot axis from the non-use position I shown in the figure into a use position II protruding from the closing element 1. The non-use position II is shown in FIG. 4 by dashed lines. The door handle 9 has a handle 45 which, in the use position II, protrudes from the closing element 4 to such an extent that it can be gripped from behind by a user.The door handle 9 also has in the present case at least one inwardly guided support arm 12 or bearing arm which has an arc shape and is mounted displaceably on the bearing bracket 7, as shown by a double arrow 46. The support arm 12 is positively guided in a guide 47 in order to enable the desired pivoting or movement of the door handle 9 from the non-use position I into the use position II. In this case, the support arm 12 also has on one longitudinal side the toothed rail 16 which is in engagement with the gearwheel 22 rotatably mounted on the bearing bracket 7. If the door handle 9 is thus pivoted, the gearwheel 22 is rotated about its axis of rotation 48.On the drive shaft 21 carrying the gearwheel 22, the spring element 41 designed as a helical spring is also arranged coaxially or at least substantially in sections coaxially with the axis of rotation 48, which spring element is fastened at one end to the bearing bracket 7 and at the other end to the gearwheel 22 and is prestressed under pressure or tension, such that the helical spring urges the door handle 9 from the retracted non-use position I into the use position II.The gearwheel 22 is also assigned the emergency actuator 54, which in this exemplary embodiment has an energizable electromagnet 50. The electromagnet 50 interacts with a blocking element 51 which has a rack structure at its free end, which can be brought into operative connection with the gearwheel 22. If the emergency actuator 54 is energized and the electromagnet 50 is thus active, the blocking element 51 is moved radially against the gearwheel 22, so that the blocking element 51 engages with the gearwheel 22 and thereby prevents the gearwheel 22 from rotating and thus the door handle 9 from being displaced. This ensures that during normal operation the door handle 9 is not undesirably displaced into the protruding use position II by the spring element. Only when the desired provision of the door handle 9 is detected by a proximity sensor, for example, is the energization of the emergency actuator 54 preferably ended in order to activate the door handle 9. In addition, this construction has the advantage that in the event of an accident or emergency, when the power supply is interrupted, the door handle 9 is automatically moved into the use position II, because the electromagnet 50 can be deactivated by the omission of the energization and the locking element 51 can thus be moved away from the gearwheel 22 or disengaged. In particular, the spring force of the helical spring is sufficient to urge the blocking element 51 back when the electromagnet 50 is deactivated. Alternatively or additionally, a further spring element 52 is assigned to the blocking element 51, which acts against the electromagnet 50, so that when the electromagnet 50 is deactivated, the blocking element 51 is moved into a release position by the spring element 52.The door handle 9 is furthermore coupled, in particular on the support arm 12, for example by the Bowden cable of the Bowden cable system 42 to a lock, not shown here, by means of which the closing element 1 can be locked on a body of the motor vehicle. The Bowden cable is designed such that the lock is only actuated to release the locking mechanism when the door handle 9 is moved from the non-use position II into a release position III pulled out further by the user. The door handle 9 is preferably held in the use position II counter to the spring force of the spiral spring by the Bowden cable, so that the door handle 9 can only be moved into the release position III by overcoming the retaining force applied by the Bowden cable.According to a further exemplary embodiment, the gearwheel 22 is held on the shaft 53 of an electric motor in a rotationally fixed manner, with the result that the door handle can be displaced in a controlled manner by actuating the electric motor. In particular, the electric motor is normally controlled to generate a braking torque or a braking torque, which prevents the door handle from being displaced outwards counter to the spring force. If this current supply fails in the event of an accident or emergency, the spring element pushes the door handle 9 into the use position II counter to the frictional forces or magnetic forces that may have remained in the electric motor.List of reference characters1 Closing element 2 door 3 outer skin 4 trim part 5 inner side 6 door handle device 7 bearing bracket 8 through opening 9 door handle 10 lock cylinder 11 cover element 12 support arm 13 bolt 14 guide rail 15 arrows 16 toothed rail 17 device 18 actuator 19 electric motor 20 gear 21 drive shaft 22 gearwheel 23 hollow shaft 24 worm wheel 25 worm wheel gear 26 worm shaft 27 output shaft 28 slider 29 circumferential groove 30 driver projection 31 device 32 lever mechanism 33 actuating lever 34 coupling rod 35 end 36 opening 37 holder device 38 receptacle 39 projection 40 spring element 41 spring element 42 Bowden cable system 43 door handle arrangement 44 door outer side 45 handle 46 double arrow 47 guide 48 axis of rotation 49 end 50 electromagnet 51 locking element 52 spring element 53 shaft 54 emergency actuator I non-use position II use position III release position

Claims

Door handle device (6) for a closing element (1), in particular a door (2) or flap, of a motor vehicle, having a door handle (9) which is mounted pivotably on a bearing bracket (7) which is fastened or can be fastened to the closing element (1) in such a way that it can be displaced from a non-use position (I) lowered into a cladding part (4) of the closing element (1) into a use position (II) projecting from the cladding part (4) and from the use position (II) by overcoming a retaining force acting on the door handle (9) in the use position (II) into a release position (III) for unlocking a lock device of the closing element (1) and back, wherein at least one spring element (41) is assigned to the door handle (9), which urges the door handle (9) from the non-use position (I) into the use position (II), having at least one emergency actuator (54) which has a movable locking element (51) which, in a normal state of the emergency actuator (54), locks the door handle (9) in the non-use position (I) counter to the force of the spring element (41) in a locking position and releases it in an emergency state of the emergency actuator (54), characterized in that the emergency actuator (54) has a rotatably mounted gearwheel (22) which is in engagement with a toothed rail (16) arranged on the door handle (9), wherein the locking element (51) interacts with the gearwheel (22) in the locking position.Door handle device according to claim 1, characterised in that the emergency actuator (54) has an electromagnet (50) interacting with the blocking element (51).Door handle device according to one of the preceding claims, characterized in that the spring element (51) is designed as a helical spring which is held at one end on the bearing bracket (7) and at the other end on the door handle (9).Door handle device according to claim 3, characterised in that the helical spring is arranged at least in sections coaxially to an axis of rotation (48) of the gearwheel (22), in particular to a shaft (53), in particular drive shaft (21), which carries the gearwheel (22).Door handle device according to one of the preceding claims, characterized bya controllable actuator (18) which has an electric motor (19), the output shaft (27) of which is coupled to a drive shaft (21), on which the gearwheel (22) is arranged in a rotationally fixed manner, by means of a worm wheel gear (25), wherein a worm shaft (26) is arranged on the output shaft (27) and a worm wheel (24) interacting with the worm shaft (26) is arranged on the drive shaft (21).Door handle device according to claim 5, characterised in that the worm wheel (24) is mounted on the drive shaft (21) in a rotationally fixed and axially displaceable manner.Door handle device according to one of claims 5 and 6, characterised in that the worm wheel (24) is assigned a displaceable slide (28), which is displaceable by at least one device (31) to such an extent that the worm wheel (24) disengages from the worm shaft (26).Door handle device according to claim 7, characterised in that a spring element (40) urging at least the worm wheel (24) into an disengaged emergency position is associated with the slider (28) and / or the worm wheel (24).Door handle device according to one of claims 7 and 8, characterised in that the emergency actuator (54) has a holding device (37) which locks the slide (28) in an energized state and releases it in an unenergised state or locks it in an unenergised state and releases it in an energized state.Door handle arrangement (43) for a motor vehicle, having a closing element (1), in particular a door (2) or flap, which is arranged displaceably on a body of the motor vehicle, having a lock, which is arranged on the closing element (1), for locking the closing element (1) in a closed position on the body, and having a door handle device (6) which is designed to actuate the lock in order to release the locking when it is actuated, characterized bythe configuration of the door handle device (6) according to one of the preceding claims.Door handle arrangement according to claim 10, characterised in that the door handle (9) is arranged on an outer side of the closing element (1).

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