Actuating device for a vehicle door lock

Abstract

The invention relates to an actuating device (1) for a door lock of a vehicle door (2), wherein the actuating device (1) has a handle part (3) that can be grasped with one hand, wherein the handle part (3) is designed to be movable between a rest position and a ready position, wherein the actuating device (1) has a particularly electromechanical actuator (4) with a drive shaft (5), and wherein the drive shaft (5) of the actuator (4) is operatively connected to the handle part (3) via a gear mechanism (6).According to the invention, it is particularly provided that the gear mechanism (6) is designed to convert a rotary movement of the drive shaft (5) of the actuator (4) into a movement of the handle part (3) with different force and, in particular, torques to be transmitted to the handle part (3) and / or with different strokes to be transmitted to the handle part (3) when the drive shaft (5) of the actuator (4) is rotated in a first direction of rotation and with a constant angular velocity.

Description

[0001] The present invention relates generally to door handle assemblies for a vehicle, preferably for a side door of a vehicle, and more particularly to an exterior door handle assembly, although it may also be an interior door handle assembly or an assembly having both an interior and an exterior door handle or an (interior and / or exterior) door handle assembly for a trunk lid.

[0002] In particular, the invention relates to an actuating device for a door lock of a vehicle door, in particular a side door of a vehicle, and in particular to an actuating device that is part of a door handle assembly for a vehicle. The actuating device is, in particular, an actuating device for a door lock of an exterior door handle assembly.

[0003] The actuating device has a handle part that can be grasped with one hand, said handle part serving to operate the vehicle door lock. The handle part is preferably connected via a mechanism to a handle support (e.g., a handle housing), which is fixed or can be fixed to the handle.

[0004] Door handle arrangements or actuating devices of the type according to the invention are used in vehicles for opening and closing doors or flaps arranged in body openings.

[0005] The door handle arrangement or actuating device according to the invention is in particular a door handle arrangement or actuating device in which the handle part designed as a door handle can actuate a corresponding door lock, preferably purely mechanically, for example with the aid of a Bowden cable or with the aid of other force transmission elements, when the handle part is actuated.

[0006] In particular, the actuating device according to the invention provides that the handle part can be moved from a flush and, in particular, strictly flush rest position or resting position into an exposed working position or working position. The handle part can be moved, in particular, by external power, from the flush and, in particular, strictly flush rest position or resting position into the exposed working position or working position.

[0007] Such a flush door handle, which is also occasionally referred to as a “flush handle”, is to be understood as a handle part whose surface, in the rest position, lies in the same plane as the body part or outer skin part of the vehicle surrounding the handle part.

[0008] In order for the handle part to be graspable by a user, the handle part must preferably be moved from the rest position into the exposed working position by external power, for example by means of a mechanism, in particular by means of a mechanism driven by a drive.

[0009] An actuating device or door handle assembly of the type considered here is disclosed, for example, in document DE 197 31 325 A1. The handle part for opening the door is arranged such that, in its non-use position, the outer side of the handle part runs approximately flush with the outer contour of the door (strictly flush), and such that the handle part for opening the door can be moved into an open position in which it protrudes from the outer contour of the door. An actuating unit can move the handle part into the open position using external force.

[0010] On the other hand, the document DE 298 04 105 U1 describes a handle part for doors and flaps of vehicles with a handle body which can be pivoted out from a pivoted-in position to an extended position by a motor and has an under-grip zone which is in an inaccessible hidden position in the pivoted-in position and is only accessible in the extended position.

[0011] Door handle assemblies in which the handle part is arranged flush with the outer body or outer skin of the vehicle in the rest position have certain advantages with regard to the requirements of aesthetics, aerodynamics and wind noise insulation compared to door handle assemblies in which the handle part is not retractable into the vehicle body.

[0012] However, retractable handles in a door handle assembly also have disadvantages in practical use. In particular, care must be taken to ensure that the handle can be reliably moved from its flush rest position to a ready position in which it can be grasped with one hand.

[0013] To transfer a handle part from a flush rest position to a standby position, it is known that the actuating device comprises an actuator, in particular an electric motor, with a drive shaft. The drive shaft of the actuator is operatively connected or operatively connectable to the handle part via a gear mechanism. Upon actuation of the actuator, the drive shaft rotates, and the rotational movement of the drive shaft is transmitted via the gear mechanism into a movement on the handle part in order to transfer the handle part from the flush rest position to the standby position.

[0014] The present invention is based on the object of specifying an actuating device for a door lock of a vehicle door of the type mentioned at the outset, wherein the gear mechanism associated with the actuator is designed to manipulate the handle part accordingly in a reproducible and reliable manner so that it can be transferred from the rest position to the standby position.

[0015] In particular, the actuator with the associated gear mechanism should be characterized by the smallest possible dimensions, whereby the handle part can be reliably transferred into the standby position even in a state when the handle part is frozen in the rest position.

[0016] This problem is solved in particular by the subject matter of independent patent claim 1.

[0017] Accordingly, the invention relates to an actuating device for a door lock of a vehicle door, in particular as part of a door handle arrangement of a vehicle door, wherein the actuating device has a handle part that can be grasped with one hand, wherein the handle part is designed to be transferable between a rest position and a standby position, and wherein the actuating device has an actuator, in particular an electromotive actuator, with a drive shaft, wherein the drive shaft of the actuator is operatively connected or operatively connectable to the handle part via a gear mechanism.

[0018] According to a first aspect of the present invention, it is provided that the gear mechanism is designed to convert, depending on a direction of rotation of the drive shaft of the actuator, a rotational movement of the drive shaft into a movement of the handle part with different forces and in particular torques to be transmitted to the handle part and / or with different movement strokes to be transmitted to the handle part.

[0019] The advantages achievable with this (first) aspect of the invention are obvious: by moving the drive shaft of the actuator in a first direction of rotation, the gear mechanism converts the rotational movement of the drive shaft into a movement of the handle part with a relatively high force and, in particular, torque, and with a relatively small stroke. This allows any existing ice to be removed and the handle part to be moved from its rest position.

[0020] On the other hand, however, by changing the direction of rotation of the actuator's drive shaft, the gear mechanism can be used to convert a movement with a relatively low force and, in particular, torque, but with a relatively high movement stroke to the handle part in order to transfer the handle part from the rest position to the ready position, in which the handle part can then be grasped by hand.

[0021] According to a further aspect, which can be implemented alternatively or in addition to the previously described aspect of the invention, it is provided according to the invention that with the aid of the actuator - depending on a direction of rotation of the drive shaft of the actuator - the handle part can be transferred either from the rest position to the standby position or from the rest position to an intermediate position lying between the rest position and the standby position.

[0022] In this case, it is provided in particular that the gear mechanism is designed to transfer the handle part from the rest position to the intermediate position upon rotation of the drive shaft of the actuator in a first direction of rotation, and then to transfer the handle part back to the rest position and then from the rest position to the standby position upon rotation of the drive shaft of the actuator in a second direction of rotation opposite to the first direction of rotation and starting from the intermediate position of the handle part.

[0023] Overall, the invention is characterized by the fact that a relatively small electromotive actuator can be used, which, due to the gear mechanism, has a dual function, namely an "icebreaker" function and the function of transferring the handle part from the flush rest position to the ready position.

[0024] Advantageous further developments of the actuating device according to the invention are specified in the dependent patent claims.

[0025] In particular, it is provided that the handle part is pivotably mounted relative to the vehicle door about a preferably vertically extending axis of rotation, wherein the handle part is preferably assigned a spring mechanism via which the handle part is pretensioned by spring force into its rest position, i.e. into the flush position.

[0026] With regard to the gear mechanism, various design variants are possible. Particularly preferably, the gear mechanism is a mechanism that is at least partially or partially designed as a cam gear mechanism and is configured to transmit a rotational movement of the actuator's drive shaft to the handle part in a non-uniform manner.

[0027] As an alternative to a cam gear mechanism, a coupling gear mechanism can also be used, since coupling gear mechanisms also belong to the group of non-uniform transmission gears. Unlike coupling gears, however, cam gears can theoretically implement any desired motion laws with little effort.

[0028] In a preferred embodiment of the gear mechanism, the latter is designed at least partially or in regions as a cam gear mechanism and has at least one pick-off element which has an end region on the handle part side, which is attached to a lever region of the handle part in a position offset with respect to a preferably vertically extending axis of rotation of the handle part and is in particular mounted there.

[0029] In this context, the gear mechanism can be designed in particular such that an output movement of the gear mechanism transmitted or to be transmitted to the handle part is generated by a continuous scanning of a cam carrier rotatably mounted on the drive shaft of the actuator—brought about by the at least one scanning element. In particular, the at least one scanning element has an actuator-side end region opposite the handle-side end region, which is designed to continuously scan the cam carrier rotatably mounted on the drive shaft of the actuator.

[0030] In this case, the at least one tapping member is guided at least substantially straight in a direction perpendicular to the axis of rotation of the handle part and preferably in a horizontal direction.

[0031] To prevent the at least one tapping element from lifting off the cam support, according to embodiment variants, a spring mechanism can be assigned to the at least one tapping element, via which the at least one tapping element is pressed against, in particular, a curve of the cam support by spring force. This spring mechanism can, for example, also be the spring mechanism assigned to the handle part and serves to preload the handle part into its rest position by spring force.

[0032] According to preferred embodiments of the actuating device according to the invention, the cam carrier rotatably mounted by the drive shaft of the actuator is designed as at least one cam disc in the form of a preferably flat disc body with a non-uniform edge region. A movement resulting from the rotation of the disc body is picked up from the edge region of the disc body via the preferably spring-loaded at least one pick-up element.

[0033] In this context, it is particularly conceivable that - viewed in a plan view of the disk body - the edge region of the disk body has an at least partially or partially at least substantially spiral-shaped section, in which a distance between the edge region and the axis of rotation of the disk body preferably increases continuously in a first circumferential direction. Likewise viewed in a plan view of the disk body, the edge region of the disk body can further have an at least partially or partially at least substantially ramp-shaped section, which connects a beginning of the spiral-shaped section to an end of the spiral-shaped section in a preferably continuous manner. The gradient of the ramp-shaped section is steeper than the gradient of the spiral section.

[0034] In other words, preferably the spiral section makes up at least 70%, preferably at least 80% and more preferably at least 90% of the total edge area of ​​the disc body.

[0035] In this embodiment, it is provided that in the rest position of the handle part, the preferably spring-loaded at least one tapping member rests at the beginning of the spiral section of the edge region of the disc body or in a central region between the beginning of the spiral section of the edge region of the disc body and the end of the spiral section of the edge region of the disc body.

[0036] In an alternative embodiment of the actuating device according to the invention, it is provided that—as viewed from above onto the disc body—the edge region of the disc body has a first section and a second section. The first section is, in particular, an at least partially or regionally at least substantially spiral-shaped section, in which a distance between the edge region and a rotational axis of the disc body preferably increases continuously in a first circumferential direction.

[0037] The second section is preferably a section which is at least partially or regionally at least substantially spiral-shaped, in which a distance between the edge region and the axis of rotation of the disk body preferably increases continuously in a second direction of rotation opposite to the first direction of rotation.

[0038] In this embodiment of the cam carrier designed as a cam disk, it is provided in particular that a first end region of the first section transitions into a first end region of the second section. Alternatively, it is provided that a first end region of the first section is located directly adjacent to a first end region of the second section.

[0039] According to further developments of this embodiment, it is provided that an amount of a gradient of the first section is greater than an amount of a gradient of the second section.

[0040] It is conceivable, for example, that—as seen in a plan view of the disc body—the edge region of the disc body further comprises a third section. The third section lies between a second end region of the first section opposite the first end region of the first section and a second end region of the second section opposite the first end region of the second section.

[0041] According to further developments of the last-mentioned aspect, it is provided that the third section directly connects the second end region of the first section to the second end region of the second section, wherein the third section preferably extends in a direction that is at least substantially radial to the disk body - with regard to a plan view of the disk body.

[0042] Of course, it is also conceivable that the third section is designed as a ramp-shaped section, as was previously the case with the alternative design of the cam carrier designed as a cam disk.

[0043] In principle, however, in the further design of the cam disc, the first and second sections should also make up at least 70%, preferably at least 80% and even more preferably at least 90% of the entire edge area of ​​the disc body.

[0044] It is preferably provided that in the rest position of the handle part, the preferably spring-loaded at least one tapping member rests in a region between the first section of the edge region of the disc body and the second section of the edge region of the disc body.

[0045] According to one embodiment variant of the actuating device according to the invention, it is provided that the cam carrier rotatably mounted by the drive shaft of the actuator has a first cam disc which is designed in the form of a preferably flat, first disc body with a non-uniform first edge region, wherein the cam carrier rotatably mounted by the drive shaft of the actuator further has a second cam disc which is designed in the form of a preferably flat, second disc body with a non-uniform second edge region.

[0046] In this context, it is advisable for the gear mechanism to have a first pick-up element, which has a handle-side end region designed to continuously scan the first cam disk of the cam carrier rotatably mounted by the actuator drive shaft. The gear mechanism further has a second pick-up element, which has a handle-side end region designed to continuously scan the second cam disk of the cam carrier rotatably mounted by the actuator drive shaft.

[0047] In this context, it is conceivable that the first cam disc and the first pick-up element are designed such that, upon rotation of the actuator drive shaft in a first direction of rotation of the actuator drive shaft, the first pick-up element interacts with the first edge region of the first disc body such that the handle part is transferred from the rest position to an intermediate position between the rest position and the standby position. On the other hand, the second cam disc and the second pick-up element are designed such that, upon rotation of the actuator drive shaft in a second direction of rotation opposite to the first direction of rotation, the second pick-up element interacts with the second edge region of the second disc body such that the handle part is transferred from the rest position to the standby position.

[0048] According to a further aspect, the invention relates to an actuating device for a door lock of a vehicle door, wherein the actuating device has a handle part that can be grasped with one hand, wherein the handle part is designed to be transferable between a rest position and a standby position, wherein the actuating device has an actuator, in particular an electromotive actuator, with a drive shaft, and wherein the drive shaft of the actuator is operatively connected or operatively connectable to the handle part via a gear mechanism.

[0049] In particular, it is provided that the gear mechanism is designed to convert a rotational movement of the drive shaft into a movement of the handle part with different forces and in particular torques to be transmitted to the handle part and / or with different movement strokes to be transmitted to the handle part when the drive shaft of the actuator rotates in a first direction of rotation and at a constant angular speed.

[0050] Alternatively or additionally to this, the gear mechanism can also be designed to convert a rotational movement of the drive shaft into a movement of the handle part when the drive shaft of the actuator rotates in a first direction of rotation in such a way that the handle part can be transferred from the rest position to the standby position, wherein starting from a rotational position of the drive shaft in which the handle part is in the standby position and upon continuation of the rotation of the drive shaft in the first direction of rotation, the handle part can be transferred into a blocked standby position in which the gear mechanism can be driven only via the drive shaft of the actuator, but not via the handle part or via a power transmission unit operatively connected to the gear mechanism and the handle part.

[0051] In the last-mentioned embodiment of the actuating device according to the invention, it is provided according to a further development that, starting from a rotational position of the drive shaft in which the handle part is in the blocked standby position and upon continuation of the rotation of the drive shaft in the first direction of rotation, the handle part is transferred or can be transferred from the blocked standby position back into the rest position.

[0052] According to implementations of the actuating device according to the invention, the gear mechanism is designed at least partially or in regions as a coupling gear mechanism or as a cam gear mechanism and is configured to transmit a rotational movement of the drive shaft of the actuator, in particular in a non-uniform manner, to the handle part, wherein for this purpose the gear mechanism has a force transmission unit which has an end region on the handle part side, which is attached to a lever region of the handle part in a position offset with respect to a preferably vertical axis of rotation of the handle part and is in particular mounted there.

[0053] The gear mechanism is preferably designed in such a way that an output movement of the gear mechanism transmitted or to be transmitted to the handle part is created by a particularly continuous scanning of a cam carrier rotatably mounted with the drive shaft of the actuator, which scanning is effected with the aid of the power transmission unit.

[0054] The force transmission unit has an actuator-side end region opposite the handle-side end region, which is designed to continuously scan the cam carrier rotatably mounted by the drive shaft of the actuator.

[0055] According to further developments of the last-mentioned embodiment, the power transmission unit has a first power transmission element facing the gear mechanism and a second power transmission element facing the handle part, wherein the first power transmission element is mounted so as to be pivotable relative to the second power transmission element about a pivot axis preferably running parallel to a rotational axis of the drive shaft, such that pivoting of the first power transmission element relative to the second power transmission element is only possible when the handle part is in the blocked standby position.

[0056] Alternatively or additionally, it is conceivable that the first force transmission element is mounted pivotably relative to the second force transmission element about a pivot axis preferably running parallel to a rotational axis of the drive shaft, such that pivoting of the first force transmission element relative to the second force transmission element is only possible if a predetermined or definable force is exerted or transmitted to the transmission mechanism via the handle part and via the force transmission unit operatively connected to the transmission mechanism and the handle part.

[0057] In preferred embodiments of the actuating device according to the invention, it is provided that in a state when the first force transmission element is in a pivoted state relative to the second force transmission element, an operative connection between the first force transmission element and the transmission mechanism is interrupted.

[0058] In particular, in this context, it is also advisable for the power transmission unit to be assigned a guide and / or support system which is designed in such a way that the area of ​​the power transmission unit in which the pivot axis runs between the first and second power transmission element is no longer guided and / or supported by the guide and / or support system when the handle part is in the blocked standby position.

[0059] In the further aspect of the actuating device according to the invention, the cam carrier rotatably mounted by the drive shaft of the actuator is preferably designed as at least one cam disc in the form of a preferably flat disc body with a non-uniform edge region, wherein a movement resulting from the rotation of the disc body can be or is tapped off from the edge region of the disc body via the preferably spring-loaded force transmission unit.

[0060] According to the implementation of this variant, it is provided that - seen in a plan view of the disc body - the edge area of ​​the disc body has the following: - a first section, in particular at least partially or in regions at least substantially spiral-shaped, in which a distance between the edge region and a rotational axis of the disc body preferably increases continuously in a first circumferential direction from a first end region of the first section to a second end region of the first section; and - a second section in which a distance between the edge region and the axis of rotation of the disc body in the first circumferential direction preferably increases continuously from a first end region of the second section to a second end region of the second section.

[0061] In this context, it is provided in particular that an amount of a gradient of the second section is greater than an amount of a gradient of the first section, and wherein the second end region of the first section merges into the first end region of the second section or wherein the second end region of the first section is immediately adjacent to the first end region of the second section.

[0062] According to further developments of this embodiment variant, the edge region of the disc body further comprises - seen in a plan view of the disc body - a third section, wherein the third section lies between the second end region of the second section and the first end region of the first section, and wherein in the third section a distance between the edge region and the axis of rotation of the disc body is at least substantially constant.

[0063] In principle, it is conceivable that the handle part of the actuating device according to the invention can be moved manually from the standby position into an actuating position, wherein the actuating device is designed to actuate the door lock when the handle part reaches or has reached the actuating position.

[0064] The invention further relates to a door handle arrangement of a vehicle door with an actuating device of the aforementioned type according to the invention for actuating a door lock of the vehicle door as required.

[0065] Exemplary embodiments of the actuating device according to the invention are described in more detail below with reference to the accompanying drawings.

[0066] They show: Fig. 1 schematically and in an isometric view a first exemplary embodiment of the actuating device according to the invention, in which the handle part of the actuating device is in a flush rest position; Fig. 2 schematically and in an isometric view the exemplary embodiment of the actuating device according to the invention according to Fig. 1, in which the handle part starting from the Fig. 1 flush rest position into an intermediate position between the rest position and a standby position; Fig. 3 schematically and in an isometric view the exemplary embodiment of the actuating device according to the invention according to Fig. 1, in which the handle part starting from the Fig. 2 shown intermediate position back to the one shown in Fig. 1 shown flush rest position; Fig. 4 schematically and in an isometric view the exemplary embodiment of the actuating device according to the invention according to Fig. 1, in which the handle part starting from the Fig. 3 is transferred into the ready position, in which the handle part can be grasped with one hand in order to transfer the handle part, for example, into an actuating position, the door lock being actuated when the handle part reaches or has reached the actuating position; Fig. 5 schematically and in an isometric view the rear view of the exemplary embodiment of the actuating device according to the invention according to Fig. 1, with the handle part in the Fig. 1 shown flush rest position; Fig. 6 schematically and in an isometric rear view the exemplary embodiment of the actuating device according to the invention according to Fig. 2, in which the handle part is transferred from the flush rest position into the intermediate position; Fig. 7 schematically and in an isometric rear view the exemplary embodiment of the actuating device according to the invention according to Fig. 3, in which the handle part starting from the Fig. 2 or Fig. 6 shown intermediate position is transferred back into the flush rest position; Fig. 8 schematically and in an isometric rear view the exemplary embodiment of the actuating device according to the invention according to Fig. 4, in which the handle part starting from the Fig. 3 or Fig. 7 is transferred to the standby position; Fig. 9 schematically and in an isometric rear view a further exemplary embodiment of the actuating device according to the invention; Fig. 10 shows schematically and in plan view a preferred embodiment of a cam disc of the cam carrier of the actuating device according to the invention; Fig. 11 schematically and in an isometric view a third exemplary embodiment of the actuating device according to the invention, in which the handle part of the actuating device is in a flush rest position; Fig. 12A schematically and in an isometric view the rear view of the exemplary embodiment of the actuating device according to the invention according to Fig. 11, with the handle part in the Fig. 11 shown flush resting position; Fig. 12B schematically and in an isometric view a detail of the gear mechanism according to Fig. 12A; Fig. 13A schematically and in an isometric view the rear view of the exemplary embodiment of the actuating device according to the invention according to Fig. 11, wherein the handle part starting from the Fig. 12A is transferred to the standby position; Fig. 13B schematically and in an isometric rear view a detail of the gear mechanism according to Fig. 13A; Fig. 14A schematically and in an isometric rear view the exemplary embodiment of the actuating device according to the invention according to Fig. 11, in which the handle part starting from the Fig. 13A is transferred into a blocked standby position; Fig. 14B schematically and in an isometric rear view a detail of the gear mechanism according to Fig. 14A; Fig. 14C schematically and in plan view a detail of the gear mechanism according to Fig. 14A; Fig. 15A schematically and in an isometric rear view the exemplary embodiment of the actuating device according to the invention according to Fig. 11, wherein the handle part, after an overload protection device has been triggered, is moved from the Fig. 14A shown blocked standby position again in the Fig. 12A shown flush rest position; Fig. 15B schematically and in an isometric rear view a detail of the gear mechanism according to Fig. 15A; Fig. 15C schematically and in plan view a detail of the gear mechanism according to Fig. 15A to explain the overload protection; Fig. 16A schematically and in an isometric rear view the exemplary embodiment of the actuating device according to the invention according to Fig. 11, in which the handle part is in the Fig. 12A or Fig. 15A, with the overload protection deactivated again; and Fig. 16B schematically and in an isometric rear view a detail of the gear mechanism according to Fig. 16A.

[0067] The exemplary embodiments shown in the drawings are an actuating device 1 for a handle part 3 of a door handle arrangement of a vehicle, wherein the handle part 3 is pivotably mounted relative to the vehicle door 2 about a preferably vertically extending axis of rotation 7.

[0068] In a resting position of the handle part 3 (see for example Fig. 1) the handle part 3 is in a flush rest position.

[0069] The handle part 3 can be transferred from the flush rest position into a standby position in which the handle part 3 is pivoted out of the vehicle body at least partially or in some areas, so that the handle part 3 can then be grasped with one hand.

[0070] Although not shown in the drawings, it can be provided that the handle part 3 is moved from the standby position into an actuating position, wherein the actuating device 1 is designed to actuate the door lock of the door handle arrangement when the handle part 3 reaches or has reached the actuating position.

[0071] Since, in door handle arrangements in which the handle part 3 is in a flush rest position in the rest position, it cannot be prevented, particularly in winter, that the handle part 3 ices over together with the outer vehicle body, care must be taken that the actuating device 1 is nevertheless designed to transfer the handle part 3 from the rest position ultimately into the standby position.

[0072] For this purpose, the actuating device 1 according to the invention is provided so that the handle part 3 can be selectively moved from the flush rest position to an intermediate position between the rest position and the standby position. When moving the handle part 3 from the rest position to the intermediate position, a relatively high torque is exerted on the handle part 3 with a shortened travel stroke, thus reliably removing ice. The required force can be approximately 200 Newtons.

[0073] As can be seen from the rear views Fig. 5 to Fig. 9, the actuating device 1 according to the invention has a particularly electromotive actuator 4 with a drive shaft 5, wherein the drive shaft 5 of the actuator 4 is operatively connected to the handle part 3 via a gear mechanism 6.

[0074] The gear mechanism 6 is designed to convert, depending on a direction of rotation of the drive shaft 5 of the actuator 4, a rotational movement of the drive shaft 5 into a movement of the handle part 3 with different forces and in particular torques to be transmitted to the handle part 3 and with different movement strokes to be transmitted to the handle part 3.

[0075] In detail, the handle part 3 can be moved with the aid of the actuator 4 - depending on a direction of rotation of the drive shaft 5 of the actuator 4 - either from the rest position to the standby position or from the rest position to an intermediate position lying between the rest position and the standby position.

[0076] In Fig. 1 and Fig. 2 or Fig. 5 and Fig. 6 it is indicated that with the help of the actuator 4 the handle part 3 can be moved from the rest position (cf. Fig. 1 or Fig. 5) into the intermediate position (cf. Fig. 2 or Fig. 6) is transferable.

[0077] On the other hand, Fig. 3 and Fig. 4 or Fig. 7 and Fig. 8, that when the direction of rotation of the drive shaft 5 of the actuator 4 is reversed, the handle part 3 can be moved from the rest position to the standby position.

[0078] The overview of the Fig. 1 to 4 or the Fig. 5 to 8 it can be seen that the gear mechanism 6 is designed to transfer the handle part 3 from the rest position into the intermediate position upon rotation of the drive shaft 5 of the actuator 4 in a first direction of rotation (cf. Fig. 2 or Fig. 6), and then upon rotation of the drive shaft 5 of the actuator 4 in a second direction of rotation opposite to the first direction of rotation and starting from the intermediate position of the handle part 3, the handle part 3 returns to the rest position (cf. Fig. 3 or Fig. 7) and then from the resting position (cf. Fig. 3 or Fig. 7) the handle part 3 into the ready position (see Fig. 4 or Fig. 8) to be transferred.

[0079] In the exemplary embodiment of the actuating device 1 according to the invention shown in the drawings, the handle part 3 is pivotally mounted relative to the vehicle door 2 about a vertically running axis of rotation 7. A spring mechanism (not shown in the drawings) can be assigned to the handle part 3, via which the handle part 3 is moved into its rest position (see Fig. 1, Fig. 3 or Fig. 5 and Fig. 7) is prestressed.

[0080] Although it is fundamentally conceivable that the gear mechanism 6 can be designed as a coupling gear mechanism, in the embodiments shown in the drawings it is provided that the gear mechanism 6 is designed as a cam gear mechanism and is designed to transmit a rotational movement of the drive shaft 5 of the actuator 4 to the handle part 3 in a non-uniform manner.

[0081] For this purpose, the gear mechanism 6 has a pick-off member 8 which has a handle-side end region which is attached to a lever region 10 of the handle part 3 in a position offset with respect to a preferably vertically extending axis of rotation 7 of the handle part 3 and is in particular mounted there.

[0082] The gear mechanism 6 is designed in such a way that an output movement of the gear mechanism 6 transmitted or to be transmitted to the handle part 3 is created by a particularly continuous scanning of a cam carrier 11 rotatably mounted with the drive shaft 5 of the actuator 4, which scanning is effected with the aid of the at least one pickup element 8.

[0083] According to the rear views Fig. 5 to Fig. 8, it can be seen in particular that the at least one pickup element 8 has an actuator-side end region opposite the handle-side end region, which is designed to continuously scan the cam carrier 11 rotatably mounted by the drive shaft 5 of the actuator 4. The pickup element 8 is guided at least substantially straight in a direction perpendicular to the rotational axis 7 of the handle part 3 and preferably in a horizontal direction.

[0084] Although not shown in the drawings, it is fundamentally conceivable that the tapping member 8 is assigned a spring mechanism, via which the tapping member 8 is pressed against, in particular, a curve of a cam disk 12 of the cam carrier 11 by spring force.

[0085] The cam carrier 11, which is rotatably mounted on the drive shaft 5 of the actuator 4, is designed as a cam disk 12 in the form of a flat disk body with a non-uniform edge region. A movement resulting from the rotation of the disk body is picked up by the edge region of the disk body via the preferably spring-loaded pickup element 8.

[0086] Viewed in a plan view of the disc body, the edge region of the disc body has an at least partially or regionally at least substantially spiral-shaped section 13, in which a distance between the edge region and the rotational axis 7 of the disc body preferably increases continuously in a first circumferential direction.

[0087] Viewed from a top view of the disk body, the edge region of the disk body further comprises an at least partially or regionally at least substantially ramp-shaped section 14, which preferably continuously connects a beginning of the spiral section 13 to an end of the spiral section 13. The spiral section 13 should preferably comprise at least 70% of the entire edge region of the disk body.

[0088] In the rest position of the handle part 3 (see for example Fig. 5) the preferably spring-loaded tapping member 8 is located in a central region between the beginning of the spiral section 13 of the edge region of the disc body and the end of the spiral section 13 of the edge region of the disc body.

[0089] Of course, other embodiments are also conceivable, such as, for example, an embodiment in which, in the rest position of the handle part 3, the preferably spring-loaded tapping member 8 rests against the beginning of the spiral section 13 of the edge region of the disc body.

[0090] In Fig. 9 shows a further embodiment of the actuating device 1 according to the invention in a rear view.

[0091] This further embodiment differs from the previously described embodiment of the actuating device 1 according to the invention in that the cam carrier 11 rotatably mounted by the drive shaft 5 of the actuator 4 has a first cam disc 12 which is designed in the form of a first disc body with a non-uniform first edge region, wherein the cam carrier 11 rotatably mounted by the drive shaft 5 of the actuator 4 further has a second cam disc 15 which is designed in the form of a second disc body with a non-uniform second edge region.

[0092] The gear mechanism 6 comprises a first pickup element 8, which has an actuator-side end region designed to continuously scan the first cam disc 12 of the cam carrier 11 rotatably mounted by the drive shaft 5 of the actuator 4. The first pickup element 8 has a handle-side end region, which transmits the movement picked up by the first cam disc 12 to the handle part 3 in order to move the handle part 3 from a rest position to an intermediate position as needed.

[0093] The actuating device 1 according to Fig. 9 further comprises a second pickup element 9, wherein an actuator-side end region of the second pickup element 9 continuously scans the second cam disc 15 of the cam carrier 11, which is rotatably mounted by the drive shaft 5 of the actuator 4. The second pickup element 9 has a handle-side end region, which interacts with a further projection / lever region 16 of the handle part 3 to transmit the movement sensed by the second cam disc 15 to the handle part 3.

[0094] The following is based on the illustration in Fig. Figure 10 describes a preferred embodiment of the cam disc 12 of the cam carrier 11. The cam disc 12 is designed in the form of a flat disc body with a non-uniform edge region. A movement resulting from the rotation of the disc body is picked up from the edge region of the disc body via the preferably spring-loaded pick-up element 8.

[0095] In Fig. 10 shows the preferred embodiment of the cam disk 12 in a plan view.

[0096] It can be seen that the edge region of the disk body of the cam carrier has a first section 13 and a second section 17. The first section is at least partially or in some areas at least substantially spiral-shaped, in which a distance between the edge region and a rotational axis 19 of the disk body increases continuously in a first circumferential direction (here: clockwise). This can be seen in particular from the fact that the ideal circular shape of the disk body in Fig. 10 is indicated by the reference symbol “K”.

[0097] The second section 17 of the edge region of the disc body is also designed as an at least substantially spiral-shaped section, in which a distance between the edge region and the axis of rotation 19 of the disc body increases continuously in a second direction of rotation opposite to the first direction of rotation (here: counterclockwise).

[0098] It can be seen that a first end region of the first section 13 merges into a first end region of the second section 17.

[0099] Furthermore, it can be seen that an amount of a gradient of the first section 13 is greater than an amount of a gradient of the second section.

[0100] In the rest position of the handle part 3, the preferably spring-loaded tapping member 8 lies in an area between the first section 13 of the edge area of ​​the disc body and the second section 17 of the edge area of ​​the disc body.

[0101] Based on the illustration in Fig. 10 it can also be seen that - seen in a plan view of the disc body - the edge region of the disc body further comprises a third section 18, wherein the third section 18 lies between a second end region of the first section 13 opposite the first end region of the first section 13 and a second end region of the second section 17 opposite the first end region of the second section 17.

[0102] The third section 18 of the edge region of the disc body directly connects the second end region of the first section 13 with the second end region of the second section 17. As in Fig. 10 - the third section 18 extends in a direction that is at least substantially radial to the disc body - with regard to a plan view of the disc body.

[0103] The following is based on the illustrations in Fig. 11 to Fig. 16 a further (third) exemplary embodiment of the actuating device 1 according to the invention is described.

[0104] Like the first and second exemplary embodiments of the actuating device 1 according to the invention, the actuating device 1 according to the third exemplary embodiment is an actuating device 1 for a door lock of a vehicle door. The actuating device 1 has a handle part 3 that can be grasped with one hand, the handle part 3 being designed to be transferable between a rest position and a standby position. The actuating device 1 again has an actuator 4, in particular an electric motor, with a drive shaft 5. The drive shaft 5 of the actuator 4 is operatively connected or operatively connectable to the handle part 3 via a gear mechanism 6.

[0105] The third exemplary embodiment of the actuating device 1 according to the invention is characterized in particular in that the gear mechanism 6 is designed to convert a rotational movement of the drive shaft 5 into a movement of the handle part 3 with different forces and in particular torques to be transmitted to the handle part 3 and / or with different movement strokes to be transmitted to the handle part 3 when the drive shaft 5 of the actuator 4 rotates in a first direction of rotation and in particular at a constant angular speed.

[0106] In particular, in the third exemplary embodiment of the actuating device 1 according to the invention, it is provided that the gear mechanism 6 is designed to convert a rotational movement of the drive shaft 5 into a movement of the handle part 3 upon rotation of the drive shaft 5 of the actuator 4 in a first direction of rotation such that the handle part 3 can be transferred from the rest position into the standby position.

[0107] Starting from a rotational position of the drive shaft 5 in which the handle part 3 is in the standby position, and upon continued rotation of the drive shaft 5 in the first direction of rotation, the handle part 3 can be transferred into a blocked standby position. In the blocked standby position of the handle part 3, the gear mechanism 6 can only be driven via the drive shaft 5 of the actuator 4, but not via the handle part 3 or via a power transmission unit operatively connected to the gear mechanism 6 and the handle part 3.

[0108] In the third exemplary embodiment of the actuating device 1 according to the invention, the gear mechanism 6 is designed at least partially or in some areas as a cam gear mechanism and is designed to transmit a rotational movement of the drive shaft 5 of the actuator 4 to the handle part 3, in particular in a non-uniform manner.

[0109] For this purpose, the gear mechanism 6 has a corresponding power transmission unit 20, which has an end region on the handle part side, which is attached to a lever region of the handle part 3 in a position offset with respect to a preferably vertical axis of rotation of the handle part 3 and is in particular mounted there.

[0110] In particular, in this context, it is provided that the gear mechanism 6 is designed such that an output movement of the gear mechanism 6 transmitted or to be transmitted to the handle part 3 is created by a particularly continuous scanning of a cam carrier 11 rotatably mounted with the drive shaft 5 of the actuator 4, effected with the aid of the power transmission unit 20.

[0111] In detail, the force transmission unit 20 has an actuator-side end region opposite the handle-side end region, which is designed to continuously scan the cam carrier 11 rotatably mounted by the drive shaft 5 of the actuator 4.

[0112] To implement the overload protection, in the third exemplary embodiment of the actuating device 1 according to the invention, the force transmission unit 20 has a first force transmission element 20.1 facing the gear mechanism 6 and a second force transmission element 20.2 facing the handle part 3, wherein the first force transmission element 20.1 is pivotally mounted relative to the second force transmission element 20.2 about a pivot axis 21 preferably running parallel to a rotational axis of the drive shaft 5, such that pivoting of the first force transmission element 20.1 relative to the second force transmission element 20.2 is only possible when the handle part 3 is in the blocked standby position.

[0113] The overload protection is triggered when a predetermined or definable force is exerted or transmitted to the gear mechanism 6 via the handle part 3 and via the force transmission unit 20 which is operatively connected to the gear mechanism 6 and the gear part.

[0114] In a state when the first power transmission element 20.1 is in a pivoted state relative to the second power transmission element 20.2, that is to say after triggering of the overload protection, an operative connection between the first power transmission element 20.1 and the gear mechanism 6 or the cam disk 11 of the gear mechanism 6 is interrupted.

[0115] When implementing the overload protection, in connection with the third exemplary embodiment of the actuating device 1 according to the invention, it is provided that the force transmission unit 20 is assigned a guide and / or support system 22, which is designed such that the area of ​​the force transmission unit 20 in which the pivot axis 21 extends between the first and second force transmission element 20.1 is no longer guided and / or supported by the guide and / or support system 22 when the handle part 3 is in the blocked standby position. The overload protection can then be activated.

[0116] At the Fig. 11 to Fig. In the third exemplary embodiment of the actuating device 1 according to the invention shown in Fig. 16, the cam carrier 11 rotatably mounted by the drive shaft 5 of the actuator 4 is designed as at least one cam disc 12 in the form of a preferably flat disc body with a non-uniform edge region, wherein a movement resulting from the rotation of the disc body can be or is tapped off from the edge region of the disc body via the preferably spring-loaded force transmission unit 20.

[0117] Viewed from above on the disk body, the edge region of the disk body has a first section 13 which is, in particular, at least partially or in some areas, at least substantially spiral-shaped, in which a distance between the edge region and an axis of rotation 19 of the disk body preferably increases continuously in a first circumferential direction from a first end region of the first section 13 to a second end region of the first section 13, and a second section 23, in which a distance between the edge region and the axis of rotation 19 of the disk body preferably increases continuously in the first circumferential direction from a first end region of the second section 23 to a second end region of the second section 23.

[0118] Preferably, an amount of a gradient of the second section 23 is greater than an amount of a gradient of the first section 13, wherein the second end region of the first section 13 merges into the first end region of the second section 23 or wherein the second end region of the first section 13 is immediately adjacent to the first end region of the second section 23.

[0119] In detail, the Fig. 11 to Fig.In the third exemplary embodiment of the actuating device 1 according to the invention shown in Fig. 16 - seen in a plan view of the disc body - the edge region of the disc body further has a third section 24, wherein the third section 24 lies between the second end region of the second section 23 and the first end region of the first section 13, and wherein in the third section 24 a distance between the edge region and the axis of rotation 19 of the disc body is at least substantially constant.

[0120] The invention is not limited to the embodiments shown in the drawings, but results from a combination of all features disclosed herein.

[0121] In particular, the invention is not limited to embodiments in which the cam carrier 11 of the gear mechanism 6 has a cam disc 12, from whose edge region a movement is sensed by means of a pickup element 8.

[0122] Rather, it is also conceivable in principle that the cam carrier has a groove guide into which a groove block of the reefing member 8 engages. List of reference symbols 1 actuating device 2 vehicle doors 3 Handle part 4 Actuator 5 Drive shaft 6 Gear mechanism 7 Rotation axis of the handle 8 first tap element 9 second tap element 10 Lever area of ​​the handle 11 Curve supports 12 first cam disc 13 first (spiral) section 14 ramp-shaped section 15 second cam disc 16 Projection / Leverage Area 17 second (spiral) section 18 third section 19 Axis of rotation of the disc body 20 Power transmission unit 20.1 first power transmission element of the power transmission unit 20.2 second power transmission element of the power transmission unit 21 Swivel axis 22 Guidance and / or support system 23 second section 24 third section K Circular shape of the disc body QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This 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

[0000] DE 197 31 325 A1

[0009] DE 298 04 105 U1

[0010]

Claims

[1] Actuating device (1) for a door lock of a vehicle door (2), wherein the actuating device (1) has a handle part (3) which can be grasped with one hand, wherein the handle part (3) is designed to be transferable between a rest position and a standby position, wherein the actuating device (1) has an actuator (4) which is in particular an electromotive actuator and has a drive shaft (5), wherein the drive shaft (5) of the actuator (4) is operatively connected or operatively connectable to the handle part (3) via a gear mechanism (6), characterized by that the gear mechanism (6) is designed to convert, depending on a direction of rotation of the drive shaft (5) of the actuator (4), a rotational movement of the drive shaft (5) into a movement of the handle part (3) with different forces and in particular torques to be transmitted to the handle part (3) and / or with different movement strokes to be transmitted to the handle part (3). [2] Actuating device (1) according to claim 1 or according to the preamble of claim 1, characterized by that with the aid of the actuator (4) - depending on a direction of rotation of the drive shaft (5) of the actuator (4) - the handle part (3) can be transferred either from the rest position to the standby position or from the rest position to an intermediate position lying between the rest position and the standby position. [3] Actuating device (1) according to claim 2, wherein the gear mechanism (6) is designed to transfer the handle part (3) from the rest position to the intermediate position upon rotation of the drive shaft (5) of the actuator (4) in a first direction of rotation, and then to transfer the handle part (3) back to the rest position and then from the rest position to the standby position upon rotation of the drive shaft (5) of the actuator (4) in a second direction of rotation opposite to the first direction of rotation and starting from the intermediate position of the handle part (3). [4] Actuating device (1) according to one of claims 1 to 3, wherein the handle part (3) is mounted pivotably relative to the vehicle door (2) about a preferably vertically extending axis of rotation (7), wherein the handle part (3) is preferably assigned a spring mechanism via which the handle part (3) is pretensioned into its rest position by spring force. [5] Actuating device (1) for a door lock of a vehicle door (2), wherein the actuating device (1) has a handle part (3) which can be grasped with one hand, wherein the handle part (3) is designed to be transferable between a rest position and a standby position, wherein the actuating device (1) has an actuator (4) which is in particular an electromotive actuator and has a drive shaft (5), wherein the drive shaft (5) of the actuator (4) is operatively connected or operatively connectable to the handle part (3) via a gear mechanism (6), characterized bythat the gear mechanism (6) is designed to convert a rotational movement of the drive shaft (5) into a movement of the handle part (3) with different forces and in particular torques to be transmitted to the handle part (3) and / or with different movement strokes to be transmitted to the handle part (3) when the drive shaft (5) of the actuator (4) rotates in a first direction of rotation and at a constant angular speed. [6] Actuating device (1) according to claim 5 or according to the preamble of claim 5, characterized byin that the gear mechanism (6) is designed to convert a rotational movement of the drive shaft (5) into a movement of the handle part (3) upon rotation of the drive shaft (5) of the actuator (4) in a first direction of rotation in such a way that the handle part (3) can be transferred from the rest position into the standby position, wherein, starting from a rotational position of the drive shaft (5) in which the handle part (3) is in the standby position, and upon continuation of the rotation of the drive shaft (5) in the first direction of rotation, the handle part (3) can be transferred into a blocked standby position in which the gear mechanism (6) can be driven only via the drive shaft (5) of the actuator (4), but not via the handle part (5) or via a power transmission unit operatively connected to the gear mechanism (6) and the handle part (5). [7] Actuating device (1) according to claim 6, wherein starting from a rotational position of the drive shaft (5) in which the handle part (3) is in the blocked standby position and upon continuation of the rotation of the drive shaft (5) in the first direction of rotation, the handle part (3) is or can be transferred from the blocked standby position back into the rest position. [8] Actuating device (1) according to one of claims 1 to 7, wherein the gear mechanism (6) is designed at least partially or in regions as a coupling gear mechanism or as a cam gear mechanism and is designed to transmit a rotational movement of the drive shaft (5) of the actuator (4) in a non-uniform manner to the handle part (3). [9] Actuating device (1) according to claim 8, wherein the gear mechanism (6) has at least one pick-off member (8, 9) which has an end region on the handle part side, which is attached to a lever region (10) of the handle part (3) in a position offset with respect to a preferably vertically extending axis of rotation (7) of the handle part (3) and in particular is mounted there. [10] Actuating device (1) according to claim 9, wherein the gear mechanism (6) is designed such that an output movement of the gear mechanism (6) transmitted or to be transmitted to the handle part (3) is produced by a particularly continuous scanning of a cam carrier (11) rotatably mounted with the drive shaft (5) of the actuator (4) - effected with the aid of the at least one pickup element (8, 9). [11] Actuating device (1) according to claim 10, wherein the at least one tapping member (8, 9) has an actuator-side end region opposite the handle-side end region, which is designed to scan the cam carrier (11) rotatably mounted by the drive shaft (5) of the actuator (4), in particular continuously. [12] Actuating device (1) according to one of claims 9 to 11, wherein the at least one tapping member (8, 9) is guided at least substantially straight in a direction perpendicular to the axis of rotation (7) of the handle part (3) and preferably in a horizontal direction. [13] Actuating device (1) according to one of claims 9 to 12 and claim 10, wherein the cam carrier (11) has a cam disc (12), wherein the at least one tapping member (8, 9) is assigned a spring mechanism, via which the at least one tapping member (8, 9) is pressed by spring force against in particular a curve of the cam disc (12). [14] Actuating device (1) according to one of claims 9 to 13 and at least claim 10, wherein the cam carrier (11) rotatably mounted by the drive shaft (5) of the actuator (4) is designed as at least one cam disc (12) in the form of a preferably flat disc body with a non-uniform edge region, wherein a movement resulting from the rotation of the disc body can be or is tapped off from the edge region of the disc body via the preferably spring-loaded at least one tap-off member (8, 9). [15] Actuating device (1) according to claim 14 and at least according to one of claims 1 to 3, wherein - seen in a plan view of the disc body - the edge region of the disc body has the following: - a first section (13), in particular at least partially or in regions at least substantially spiral-shaped, in which a distance between the edge region and a rotational axis (19) of the disc body preferably increases continuously in a first circumferential direction; and - a second section (17), in particular at least partially or in some areas at least substantially spiral-shaped, in which a distance between the edge region and the axis of rotation (19) of the disc body preferably increases continuously in a second direction of rotation opposite to the first direction of rotation, wherein a first end region of the first section (13) merges into a first end region of the second section (17) or wherein a first end region of the first section (13) is located directly adjacent to a first end region of the second section (17). [16] Actuating device (1) according to claim 15, wherein an amount of a gradient of the first portion (13) is greater than an amount of a gradient of the second portion (17). [17] Actuating device (1) according to claim 15 or 16, wherein - seen in a plan view of the disc body - the edge region of the disc body further comprises a third section (18), wherein the third section (18) lies between a second end region of the first section (13) opposite the first end region of the first section (13) and a second end region of the second section (17) opposite the first end region of the second section (17). [18] Actuating device (1) according to claim 17, wherein the third section (18) directly connects the second end region of the first section (13) to the second end region of the second section (17), wherein the third section (18) preferably extends in a direction that is at least substantially radial to the disc body - with respect to a plan view of the disc body. [19] Actuating device (1) according to one of claims 15 to 18, wherein the first and second portions (13, 17) constitute at least 70%, preferably at least 80% and more preferably at least 90% of the total edge region of the disc body. [20] Actuating device (1) according to one of claims 15 to 19, wherein in the rest position of the handle part (3) the preferably spring-loaded at least one tapping member (8, 9) rests in a region between the first section (13) of the edge region of the disc body and the second section (17) of the edge region of the disc body. [21] Actuating device (1) according to one of claims 9 to 20 and at least claim 10, wherein the cam carrier (11) rotatably mounted by the drive shaft (5) of the actuator (4) has a first cam disc (12) which is designed in the form of a preferably flat, first disc body with a non-uniform first edge region, wherein the cam carrier (11) rotatably mounted by the drive shaft (5) of the actuator (4) further has a second cam disc (15) which is designed in the form of a preferably flat, second disc body with a non-uniform second edge region, wherein the gear mechanism (6) has a first pick-up element (8) which has an actuator-side end region which is designed to scan the first cam disc (12) of the cam carrier (11) rotatably mounted by the drive shaft (5) of the actuator (4), in particular continuously, wherein the gear mechanism (6) has a second pick-up element (9),which has an actuator-side end region which is designed to continuously scan the second cam disc (15) of the cam carrier (11) rotatably mounted by the drive shaft (5) of the actuator (4). [22] Actuating device (1) according to claim 21, wherein the first cam disc (12) and the first pick-up member (8) are designed such that upon rotation of the drive shaft (5) of the actuator (4) in a first direction of rotation, the first pick-up member (8) operatively interacts with the first edge region of the first disc body such that the handle part (3) is transferred from the rest position into an intermediate position lying between the rest position and the standby position, and wherein the second cam disc (15) and the second pick-up member (9) are designed such that upon rotation of the drive shaft (5) of the actuator (4) in a second direction of rotation opposite to the first direction of rotation, the second pick-up member (9) operatively interacts with the second edge region of the second disc body such that the handle part (3) is transferred from the rest position into the standby position. [23] Actuating device (1) according to one of claims 4 to 6, wherein the gear mechanism (6) is designed and constructed at least partially or in regions as a coupling gear mechanism or as a cam gear mechanism to transmit a rotational movement of the drive shaft (5) of the actuator (4), in particular in a non-uniform manner, to the handle part (3), wherein for this purpose the gear mechanism (6) has a force transmission unit (20) which has an end region on the handle part side, which is attached to a lever region (10) of the handle part (3) in a position offset with respect to a preferably vertically extending axis of rotation (7) of the handle part (3) and is in particular mounted there, wherein the gear mechanism (6) is designed in such a waythat an output movement of the gear mechanism (6) transmitted or to be transmitted to the handle part (3) is created by a particularly continuous scanning of a cam carrier (11) rotatably mounted with the drive shaft (5) of the actuator (4), effected with the aid of the power transmission unit (20), and wherein the power transmission unit (20) has an actuator-side end region opposite the handle part-side end region, which is designed to particularly continuously scan the cam carrier (11) rotatably mounted by the drive shaft (5) of the actuator (4). [24] Actuating device (1) according to claim 23, wherein the force transmission unit (20) has a first force transmission element (20.1) facing the gear mechanism (6) and a second force transmission element (20.2) facing the handle part (5), wherein the first force transmission element (20.1) is mounted so as to be pivotable relative to the second force transmission element (20.2) about a pivot axis (21) preferably running parallel to a rotational axis of the drive shaft (5) in such a way that pivoting of the first force transmission element (20.1) relative to the second force transmission element (20.2) is only possible when the handle part (3) is in the blocked standby position. [25] Actuating device (1) according to claim 23 or 24, wherein the first force transmission element (20.1) is mounted pivotably relative to the second force transmission element (20.2) about a pivot axis (21) preferably running parallel to a rotational axis of the drive shaft (5) in such a way that pivoting of the first force transmission element (20.1) relative to the second force transmission element (20.2) is only possible if a predetermined or definable force is exerted or transmitted to the transmission mechanism (6) via the handle part (5) and via the force transmission unit (20) operatively connected to the transmission mechanism (6) and the handle part (5). [26] Actuating device (1) according to claim 23 or 24, wherein in a state when the first force transmission element (20.1) is in a pivoted state relative to the second force transmission element (20.2), an operative connection between the first force transmission element (20.1) and the gear mechanism (6) is interrupted. [27] Actuating device (1) according to one of claims 24 to 26, wherein the force transmission unit (20) is assigned a guide and / or support system (22) which is designed such that the region of the force transmission unit (20) in which the pivot axis runs between the first and second force transmission element (20.1, 20.2) is no longer guided and / or supported by the guide and / or support system (22) when the handle part (3) is in the blocked standby position. [28] Actuating device (1) according to one of claims 24 to 27, wherein the cam carrier (11) rotatably mounted by the drive shaft (5) of the actuator (4) is designed as at least one cam disc (12) in the form of a preferably flat disc body with a non-uniform edge region, wherein a movement resulting from the rotation of the disc body can be or is tapped off from the edge region of the disc body via the preferably spring-loaded force transmission unit (20). [29] Actuating device (1) according to claim 28, where - seen in a plan view of the disc body - the edge region of the disc body has the following: - a first, in particular at least partially or regionally at least substantially spiral-shaped section (13), in which a distance between the edge region and a rotational axis (19) of the disc body preferably increases continuously in a first circumferential direction from a first end region of the first section (13) to a second end region of the first section (13); and - a second section (23) in which a distance between the edge region and the rotational axis (19) of the disc body in the first circumferential direction preferably increases continuously from a first end region of the second section (23) to a second end region of the second section (23), wherein an amount of a gradient of the second section (23) is preferably greater than an amount of a gradient of the first section (13), and wherein the second end region of the first section (13) merges into the first end region of the second section (23) or wherein the second end region of the first section (13) is immediately adjacent to the first end region of the second section (23). [30] Actuating device (1) according to claim 29, wherein - seen in a plan view of the disc body - the edge region of the disc body further comprises a third section (24), wherein the third section (24) lies between the second end region of the second section (23) and the first end region of the first section (13), and wherein in the third section (24) a distance between the edge region and the axis of rotation (19) of the disc body is at least substantially constant. [31] Actuating device (1) according to one of claims 1 to 30, wherein the handle part (3) is manually movable from the standby position into an actuating position, wherein the actuating device (1) is designed to actuate the door lock when the handle part (3) reaches or has reached the actuating position. [32] Door handle arrangement of a vehicle door (2) with an actuating device (1) according to one of claims 1 to 31 for actuating a door lock of the vehicle door (2) as required.

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