EP3734003B1 - Door handle assembly - Google Patents

Description

The invention relates to a door handle assembly.

Door handle arrangements with a recessed door handle, in particular for vehicles, in particular for vehicle doors, are generally known from the prior art. In these door handle arrangements, in order to enable the vehicle door to be opened, the door handle, driven by an electric motor, is extended from a position that is lowered into the vehicle door into a position for use. After opening the vehicle door, the door handle is moved back into the lowered position by an electric motor.

In the WO 2016/113339 A1 a motor vehicle door and a door handle system for this are described. The motor vehicle door includes a door lock and a door handle system, which is positioned in the area of a door recess and interacts with the door lock to open the motor vehicle door. The door handle system has a door handle, which is movably mounted between a rest position positioned flush with an outer door skin and a functional position projecting outwards over the outer door skin. The door handle system is associated with parallel guidance kinematics. The parallel guide kinematics are designed as pivot kinematics that define a pivot axis for the door handle that extends in the longitudinal direction of the vehicle and is spaced apart from the door handle in the vertical direction of the vehicle.

In the DE 10 2016 217 647 A1 a door handle system for a vehicle door is described. The door handle system comprises a door handle unit that is movably mounted between a rest position flush with the door and an extended functional position, as well as an electric drive system for shifting the Door handle unit between the rest position and the functional position. The door handle unit has a drive plate and a door handle element assigned to the drive plate. The drive plate is movably mounted to move the door handle unit into the functional position or the rest position and is operatively connected to the drive system. The door handle element is movably mounted relative to the drive plate. A restraining device secures the door handle element with limited force in a contact position on the drive plate.

In the DE 10 2017 010 196 B3 a handle device for a motor vehicle door is described. The handle device includes a door handle, which is articulated at both ends to an electrically driven movement kinematics. A first end of the door handle is outwardly rotatable via a powered pivoting lever. A push rod is articulated on the pivoting lever, the other end of which is articulated on a locking lever which acts on a pair of toggle levers, one end of a first toggle lever being articulated on a second end of the door handle and one end of a second toggle lever being rotatably mounted on the housing side. The blocking lever is designed, in a ready position, to block movement of the door handle back into a rest position and to allow movement into an open position.

In the DE 40 02 963 C1 describes a handle control for a handle for unlocking vehicle doors. In a rest position, the handle can be lowered flush with an outer contour in a trough of the vehicle door and can be transferred out of the trough in a controlled manner into a ready position for opening the vehicle door and then further pivoted out against a spring force by actuating a lock release. The handle control comprises two swiveling levers, which are hinged to the door on one side and articulated to the handle on the other side, which when swiveled in a controlled manner move the handle into a ready position in the same direction as the outer contour of the door, and which then perform an additional swiveling movement on one side of the handle against the force allow a feather.

The object of the present invention is to specify a door handle arrangement which is improved over the prior art.

The object is achieved according to the invention by a door handle arrangement with the features of claim 1.

Advantageous configurations of the invention are the subject matter of the dependent claims.

A door handle arrangement according to the invention, in particular an outside door handle arrangement, is provided for a door, in particular for a vehicle door. It includes a door handle that can be moved from a retracted position into a usage position. The door handle is moved, for example, electrically, in particular by means of an electric motor. The door can be opened by operating and/or touching the door handle. In normal operation, this occurs after the door handle is placed in the use position. i.e. the door handle is first moved from the recessed position, in particular in the door recessed position, into the usage position, in particular extended out of the door, in which it is easily accessible for actuation and/or touching. For example, an emergency release can also be provided for emergency operation, for example in the event of a failure of the electrical power supply or due to another cause, so that the door handle can no longer be moved into the usage position. In this case, it can be provided, for example, that the door handle can also be actuated and/or touched in the retracted position to open the door.

The door handle arrangement also includes a return spring, in particular for returning the door handle from the use position to the retracted position or at least to support this return.

For this purpose, the return spring is coupled to the door handle, for example directly to the door handle or via a connecting lever connected to the door handle, and in the retracted position and in the use position to a counter bearing which is at least then fixed, for example directly or via a spring tensioning lever. For example, one spring limb or at least one spring limb of the return spring is coupled to the door handle or to the connecting lever, in particular rests against it, and the other spring limb or at least one other spring limb of the return spring is coupled with the counter bearing or with the spring tensioning lever, in particular rests against in particular in such a way that the restoring spring is increasingly tensioned or would be tensioned by a relative movement of the connecting lever and spring tensioning lever in one direction and is increasingly relaxed or would be relaxed in the other direction. The restoring spring is used in particular for a coupling, in particular an elastic coupling, of the connecting lever and spring tensioning lever and thus a coupling, in particular an elastic coupling, of the door handle and spring tensioning lever, for example to enable anti-trap protection, in particular during movement into the retracted position.

The return spring is decoupled from the counter bearing between the retracted position and the use position.

For example, it can also be provided that the abutment assumes a retracted abutment position in the retracted position and an extended abutment position in the use position and can be transferred from the retracted abutment position to the extended abutment position during the movement of the door handle from the retracted position to the use position, wherein it then advantageously covers a movement path, for example the same movement path, in the same time as the door handle and/or, if present, its connecting lever.

In particular, the spring tensioning lever on which the return spring rests, and thus also the return spring, is decoupled from the counter bearing between the retracted position and the use position, the spring tensioning lever advantageously being moved with the door handle and thus with the return spring.

This solution ensures that the return spring is not further tensioned by moving the door handle from the retracted position into the use position, but rather the counter bearing and thus the leg of the return spring supported on it is also moved in the direction of the use position and/or the return spring due to of the lack of contact with the counter bearing during the movement into the position of use is no longer tightened, but remains, for example, in its state of tension or, for example, is somewhat, but not completely, relaxed. This avoids an additional load on a drive, in particular the electric motor, for moving the door handle into the use position, since the drive, in particular the electric motor, only has to move the door handle and does not also have to tension the return spring, i. H. does not have to work against the spring action of the return spring and therefore does not have to perform any further spring work. Thus, the drive, in particular the electric motor, has a greater reserve of power and/or a smaller drive, in particular an electric motor, can be used, for example, which results in space advantages. Without this solution, the return spring would be additionally tensioned with each movement of the door handle into the use position, causing unnecessary losses in the drive and increasing wear on the drive and the return spring, thus shortening service life. The solution described avoids this, reduces wear and increases the service life.

In one possible embodiment, the door handle assembly includes a spring tensioning lever and an eccentric unit. The return spring is coupled to a spring contact area of the spring tensioning lever. The eccentric unit is rotatably mounted and has a spring tensioning lever eccentric curve for guiding the spring tensioning lever. The spring tensioning lever eccentric cam is designed in such a way that the spring tensioning lever rests against the spring tensioning lever eccentric curve in the retracted position of the door handle and in the use position of the door handle and is spaced from the spring tensioning lever eccentric curve in between.

The eccentric unit forms the counter bearing for the restoring spring, which is coupled to the eccentric unit via the spring tensioning lever in the retracted position and the use position. The eccentric unit is arranged on a component of the door handle arrangement, for example on a bearing bracket, which is stationary, at least stationary when the door handle is in the retracted position and in the usage position. The door handle arrangement is fastened or can be fastened to the door via this bearing bracket.

This ensures that the return spring is not further tensioned by moving the door handle from the retracted position to the position of use, but rather the counter bearing and thus the leg of the return spring supported on it is also moved in the direction of the position of use and/or the return spring due to the during the movement into the position of use without contact with the counter bearing is no longer tightened, but remains, for example, in its state of tension or, for example, is somewhat, but not completely, relaxed.

In one possible embodiment, the restoring spring is part of a movement arrangement, in particular for moving the door handle from the retracted position to the usage position and back. This movement arrangement comprises the connecting lever coupled, in particular pivotably coupled, to the door handle, in particular to an end region of the door handle, the spring tensioning lever, the restoring spring and the eccentric unit. The eccentric unit forms, as already mentioned, the abutment for the return spring, which in the retracted position and the

Use position is coupled via the spring tensioning lever with the eccentric unit. As already mentioned, the eccentric unit is arranged on a component of the door handle arrangement, for example on the bearing bracket, which is stationary, at least stationary when the door handle is in the retracted position and in the usage position. The door handle arrangement is fastened or can be fastened to the door via this bearing bracket.

The connecting lever and the spring tensioning lever are advantageously mounted pivotably about a common pivot axis and pivotable relative to one another about this pivot axis. The restoring spring is advantageously coupled to a spring contact area of the connecting lever and to the spring contact area of the spring tensioning lever, in particular with a spring leg in each case, such that it can be released by a pivoting movement of the spring contact area of the spring tensioning lever in the direction of the spring contact area of the connecting lever and can be tensioned by an opposite pivoting movement. As already described, the return spring is coupled in the retracted position and the use position via the spring tensioning lever to the eccentric unit forming the counter bearing, so that the spring tensioning lever is then immovable and thus, for example, also keeps the connecting lever and thus also the door handle immovable due to the pretension of the return spring . In particular in the retracted position, for example, this prevents the door handle from rattling.

The eccentric unit is rotatably mounted, for example rotatably mounted on the bearing bracket, and advantageously has a connecting lever eccentric curve for guiding the connecting lever and the spring tensioning lever eccentric curve for guiding the spring tensioning lever. These eccentric cams are advantageously arranged in two different planes, so that the eccentric unit has two eccentric disks which are arranged one above the other and are fixed to one another or designed in one piece, each with one of the eccentric cams.

• durch Drehen der Exzentereinheit die Bewegungsanordnung aus einer eingefahrenen Stellung, in welcher der Türgriff in der versenkten Stellung positioniert ist, in eine ausgefahrene Stellung überführbar ist, in welcher der Türgriff in der Nutzungsstellung positioniert ist,
• vorteilhafterweise der Verbindungshebel und der Federspannhebel in der eingefahrenen Stellung und der ausgefahrenen Stellung derart relativ zueinander positioniert sind, dass die Rückstellfeder teilweise gespannt ist,
• vorteilhafterweise der Verbindungshebel während der Drehbewegung der Exzentereinheit an der Verbindungshebelexzenterkurve anliegt, zweckmäßigerweise auch in der eingefahrenen Stellung und der ausgefahrenen Stellung, und
• der Federspannhebel in der eingefahrenen Stellung und der ausgefahrenen Stellung an der Federspannhebelexzenterkurve anliegt und dazwischen von der Federspannhebelexzenterkurve beabstandet ist.

The eccentric cams are advantageously designed in such a way that

• by turning the eccentric unit, the movement arrangement can be transferred from a retracted position, in which the door handle is positioned in the retracted position, into an extended position, in which the door handle is positioned in the usage position,
• advantageously the connecting lever and the spring tensioning lever are positioned relative to one another in the retracted position and the extended position in such a way that the return spring is partially tensioned,
• advantageously the connecting lever bears against the connecting lever eccentric cam during the rotary movement of the eccentric unit, expediently also in the retracted position and the extended position, and
• the spring charging lever abuts the spring charging lever cam in the retracted position and the extended position and is spaced from the spring charging lever eccentric cam therebetween.

The connecting lever can thus be pivoted about the pivot axis from a connecting lever initial position (retracted position of the moving arrangement) into a connecting lever end position (extended position of the moving arrangement) by means of the connecting lever eccentric cam. In the retracted position of the movement arrangement, the spring tensioning lever is in a tensioning lever initial position, with the spring contact areas of the spring tensioning lever and connecting lever advantageously being spaced apart from one another in such a way that the return spring is pretensioned, i.e. slightly tensioned, in particular in such a way that it rests firmly on the two spring contact areas and thus does not rattle. In the extended position of the movement arrangement, the spring tensioning lever is in a tensioning lever end position, the spring contact areas of the spring tensioning lever and connecting lever advantageously being spaced apart again in such a way that the return spring is pretensioned, i.e. slightly tensioned, in particular in such a way that it rests firmly on the two spring contact areas and therefore not rattling. In the clamping lever initial position and The spring tensioning lever is in contact with the spring tensioning lever cam in the end position of the tensioning lever. In between, i.e. between the initial position of the clamping lever and the end position of the clamping lever and thus during the movement into the extended position and thus during the movement of the door handle into the position of use, the spring clamping lever is at a distance from the spring clamping lever eccentric curve, i.e. it no longer rests against it and can therefore freely move around the Swivel swivel axis. Due to the previously prestressed return spring between the spring tensioning lever and the connecting lever, the spring contact area of the spring tensioning lever approaches the spring contact area of the connecting lever while the return spring relaxes and is then pivoted together with the connecting lever and the return spring due to the connection via the return spring. This takes place until the connecting lever has reached the connecting lever end position and the spring tensioning lever rests against the spring tensioning lever eccentric cam again, by which it is moved into its tensioning lever end position, whereby the spring contact areas are spaced apart again in such a way that the return spring is pretensioned again. During the movement, the restoring spring is thus decoupled from the counter bearing formed by the eccentric unit and is not tensioned, in particular not additionally tensioned.

Advantageously, the eccentric unit and/or the pivot axis are arranged on the bearing bracket and are therefore immovable components, with the exception of the rotation of the eccentric unit, i. H. the eccentric unit itself is in a fixed position, it only rotates, in particular on a drive axle which is arranged in the bearing bracket, so that the eccentric cams move accordingly. As already described above, the eccentric unit thus forms the counter bearing for the return spring. Spring tensioning lever and connecting lever move by pivoting around the pivot axis.

The eccentric unit is advantageously arranged fixedly on the drive axle or is formed in one piece with it and can be rotated by rotating the drive axle.

The door handle is thus driven to move it into the usage position via the eccentric unit.

As already mentioned, the eccentric unit is advantageously arranged on the bearing bracket via the drive axle, which is rotatably mounted in the bearing bracket. As already mentioned, it is therefore arranged in a fixed position on the bearing bracket and thus forms the counter bearing for the return spring. The position of the counter bearing is changed by turning the eccentric unit, whereby the spring tensioning lever rests against different areas of the spring tensioning lever eccentric curve.

The movement arrangement, in particular the connecting lever, is advantageously coupled to a further movement arrangement which is coupled to the other end region of the door handle, in particular is pivotably coupled. As a result, both end areas of the door handle can be moved by means of a single drive unit, so that the door handle can be moved from the retracted position into the use position, for example by a parallel displacement. For this purpose, a force transmission rod is advantageously arranged between the movement arrangement, in particular its connecting lever, and the further movement arrangement.

• durch Drehen der Exzentereinheit die Bewegungsanordnung aus der eingefahrenen Stellung in die ausgefahrene Stellung überführbar ist,
• der Verbindungshebel und der Federspannhebel in der eingefahrenen Stellung und der ausgefahrenen Stellung derart relativ zueinander positioniert sind, dass die Rückstellfeder teilweise gespannt ist,
• der Verbindungshebel während der Drehbewegung der Exzentereinheit an der Verbindungshebelexzenterkurve anliegt und
• der Federspannhebel in der eingefahrenen Stellung und der ausgefahrenen Stellung an der Federspannhebelexzenterkurve anliegt und dazwischen von der Federspannhebelexzenterkurve beabstandet ist.

A movement arrangement for the door handle arrangement described above comprises the connecting lever for connection to the door handle, the spring tensioning lever, the return spring and the eccentric unit, the connecting lever and the spring tensioning lever being mounted pivotably about the common pivot axis and being pivotable relative to one another about this pivot axis, the return spring is coupled to the spring contact area of the connecting lever and to the spring contact area of the spring tensioning lever in such a way that it can be relaxed by the pivoting movement of the spring contact area of the spring tensioning lever in the direction of the spring contact area of the connecting lever and can be tensioned by the opposite pivoting movement, the eccentric unit is rotatably mounted and has the connecting lever eccentric cam for guiding the connecting lever and the spring tensioning lever eccentric curve for guiding the spring tensioning lever, and wherein the eccentric cams are designed in such a way that

• the movement arrangement can be transferred from the retracted position to the extended position by turning the eccentric unit,
• the connecting lever and the spring tensioning lever are positioned relative to one another in the retracted position and the extended position in such a way that the return spring is partially tensioned,
• the connecting lever rests against the connecting lever eccentric curve during the rotary movement of the eccentric unit and
• the spring charging lever abuts the spring charging lever cam in the retracted position and the extended position and is spaced from the spring charging lever eccentric cam therebetween.

This achieves the advantages already described above. The door handle arrangement advantageously comprises such a movement arrangement as already described above.

The connecting lever eccentric cam is advantageously designed in such a way that the connecting lever rests against a first connecting lever contact section in the retracted position and against a second connecting lever contact section of the connecting lever eccentric cam in the extended position, with the first connecting lever contact section being at a smaller distance from the drive axis than the second connecting lever contact section, with the the first connecting lever contact section has the smallest distance between the connecting lever eccentric cam and the drive axle, and the second connecting lever contact section has the greatest distance between the connecting lever eccentric cam and the drive axle. This will do that increasing movement, in particular swinging out, of the connecting lever and thus the increasing extension of the door handle into the position of use.

The spring tensioning lever eccentric cam is advantageously designed such that the spring tensioning lever rests against a first spring tensioning lever contact section in the retracted position and against a second spring tensioning lever contact section of the spring tensioning lever eccentric curve in the extended position. In particular, the first spring tensioning lever contact section is at a greater distance from the drive axle than the second spring tensioning lever contact section, with the first spring tensioning lever contact section having the greatest distance between the spring tensioning lever eccentric cam and the drive axle, and the second connecting lever contact section having the smallest distance between the spring tensioning lever eccentric curve and the drive axle. This ensures that the spring tensioning lever eccentric cam rests against the spring tensioning lever pivoted along with the connecting lever in the tensioning lever end position. Thus, in the tensioning lever initial position, i.e. in the retracted position of the movement arrangement and thus in the retracted position of the door handle arrangement and thus the door handle, the first spring tensioning lever contact section of the spring tensioning lever eccentric curve of the eccentric unit forms the counter bearing for the spring tensioning lever and thus for the return spring, with the counter bearing thus being in is in the retracted counter bearing position, and in the clamping lever end position, i.e. in the extended position of the movement arrangement and thus in the usage position of the door handle arrangement and thus the door handle, the second spring tensioning lever contact section of the spring tensioning lever eccentric curve of the eccentric unit forms the counter bearing for the spring tensioning lever and thus for the return spring, with the counter bearing is now in the extended counter bearing position due to the rotation of the eccentric unit.

In one possible embodiment, the spring tensioning lever has a recess for the passage of the first spring tensioning lever contact section during the rotary movement of the eccentric unit. As a result, the greatest possible rotational movement of the eccentric unit is made possible in order to achieve the greatest possible movement path of the door handle.

The connecting lever has, for example, a roller for rolling on the connecting lever eccentric curve of the eccentric unit. This enables the connecting lever and thus the door handle to be moved with little friction and little wear, so that only a small amount of force is required for the drive unit and a long service life is achieved.

As already mentioned above, an electric motor is advantageously provided as the drive unit for rotating the eccentric unit. This enables the door handle to be moved electrically into the use position and back.

As already mentioned above, the eccentric unit is advantageously arranged in a fixed manner on the drive axle or is formed in one piece with it and can be rotated by rotating the drive axle. The drive axle is then advantageously coupled to the electric motor, in particular via a gear, in particular via a worm gear, crown gear, bevel gear or toothed gear. This enables, for example, a force deflection and/or a step-up or step-down.

Figur 1

schematisch eine Bewegungsanordnung für eine Türgriffanordnung in einer eingefahrenen Stellung,

Figur 2

schematisch die Bewegungsanordnung aus Figur 1 in einer Zwischenstellung,

Figur 3

schematisch die Bewegungsanordnung aus Figur 1 in einer ausgefahrenen Stellung,

Figur 4

schematisch eine weitere Darstellung der Bewegungsanordnung in der eingefahrenen Stellung,

Figur 5

schematisch die Bewegungsanordnung aus Figur 4 in einer Zwischenstellung,

Figur 6

schematisch die Bewegungsanordnung aus Figur 4 in einer weiteren Zwischenstellung,

Figur 7

schematisch die Bewegungsanordnung aus Figur 4 in der ausgefahrenen Stellung,

Figur 8

schematisch eine Türgriffanordnung in einer versenkten Stellung, wobei sich die Bewegungsanordnung in der eingefahrenen Stellung befindet, und

Figur 9

schematisch die Türgriffanordnung in einer Nutzungsstellung, wobei sich die Bewegungsanordnung in der ausgefahrenen Stellung befindet.

Exemplary embodiments of the invention are explained in more detail below with reference to drawings. show:

figure 1

schematically a movement arrangement for a door handle arrangement in a retracted position,

figure 2

schematically shows the movement arrangement figure 1 in an intermediate position

figure 3

schematically shows the movement arrangement figure 1 in an extended position,

figure 4

a schematic representation of the movement arrangement in the retracted position,

figure 5

schematically shows the movement arrangement figure 4 in an intermediate position

figure 6

schematically shows the movement arrangement figure 4 in another intermediate position,

figure 7

schematically shows the movement arrangement figure 4 in the extended position,

figure 8

schematically shows a door handle assembly in a stowed position with the moving assembly in the stowed position, and

figure 9

schematically shows the door handle assembly in a use position, with the movement assembly in the extended position.

Corresponding parts are provided with the same reference symbols in all figures.

the Figures 1 to 7 show a movement assembly 1 for a door handle assembly 2 and FIG figures 8 and 9 the door handle arrangement 2 with such a movement arrangement 1. The movement arrangement 1 is in figure 1 in a retracted position, in figure 2 in an intermediate position and in figure 3 shown in an extended position. the Figures 4 to 7 show another representation of the movement arrangement 1, which is also shown here in figure 4 in the retracted position, in figure 5 in an intermediate position, in figure 6 in another intermediate position and in figure 7 shown in the deployed position. The door handle assembly 2 is in figure 8 shown in a lowered position, in which the movement arrangement 1 is in the retracted position, and in figure 9 shown in a use position in which the movement assembly 1 is in the extended position.

The door handle arrangement 2 is designed in particular as an outside door handle arrangement. It is intended for a door, in particular for a vehicle door. It includes a door handle 3 that can be moved from the retracted position into the usage position. The door handle 3 is moved, for example, electrically, in particular by means of an electric motor, not shown here.

The door can be opened by actuating and/or touching the door handle 3 . In normal operation, this takes place after the door handle 3 is arranged in the usage position. i.e. the door handle 3 is first moved from the recessed position, in particular recessed in the door, into the position of use, in particular extended out of the door, in which it is easily accessible for actuation and/or touching.

For example, an emergency release can also be provided for emergency operation, for example in the event of a failure of the electrical power supply or due to another cause, so that the door handle 3 can no longer be moved into the usage position. In this case, it can be provided, for example, that the door handle 3 can also be actuated and/or touched in the retracted position to open the door.

The door handle arrangement 2 also includes a return spring 4, in particular for returning the door handle 3 from the usage position to the retracted position or at least to support this return.

For this purpose, the return spring 4 is coupled to the door handle 3, for example directly to the door handle 3 or, as in the example shown here, via a connecting lever 5 connected to the door handle 3, and in the retracted position and in the use position with an abutment that is at least then stationary G, for example directly or, as in the example shown here, via a spring tensioning lever 6. For example, a spring leg 4.1 or at least one spring leg 4.1 of the return spring 4 is coupled to the door handle 3 or, as in the example shown here, to the connecting lever 5 in particular, and the other spring leg 4.2 or at least one other spring leg 4.2 of the return spring 4 is connected to the counter bearing G or, as in the example shown here, to the spring tensioning lever 6 and via this at least in the retracted position and in the use position with the counter bearing G coupled, with this other spring leg 4.2 on the spring chip Lever 6 is applied, in particular in such a way that the return spring 4 is increasingly tensioned or would be tensioned by a relative movement of connecting lever 5 and spring tensioning lever 6 in one direction and is increasingly relaxed or would be relaxed in the other direction. The restoring spring 4 is used in particular for a coupling, in particular an elastic coupling, of the connecting lever 5 and spring tensioning lever 6 and thus a coupling, in particular an elastic coupling, of the door handle 3 and spring tensioning lever 6, for example to protect against pinching, in particular during movement into the retracted position , to allow.

The return spring 4 is used in particular to carry the door handle 3, more precisely the connecting lever 5 and thus the door handle 3, while it is being moved back into the retracted position. For this purpose, for example, the spring tensioning lever 6 is moved and increases by the spring tension Return spring 4 coupled via the return spring 4 with the spring tensioning lever 6 door handle 3, more precisely the coupled via the return spring 4 with the spring tensioning lever 6 connecting lever 5 and thereby also the door handle 3, with.

The return spring 4 is decoupled from the abutment G between the retracted position and the use position and/or the abutment G assumes a retracted abutment position in the retracted position and an extended abutment position in the use position and is out of the retracted position while the door handle 3 is being moved into the usage position from the retracted counter-bearing position into the extended counter-bearing position, in which case it advantageously covers a movement path in the same time as the door handle 3 and/or, if present, its connecting lever 5. In particular, the spring tensioning lever 6, on which the return spring 4 rests, and thus also the return spring 4 itself, is decoupled from the counter bearing G between the retracted position and the use position, as in figure 2 and figure 5 is shown and is described in more detail below, the spring tensioning lever 6 advantageously being moved along with the door handle 3 and thus with the return spring 4 .

This solution ensures that the return spring 4 is not further tensioned by the movement of the door handle 3 from the retracted position into the position of use, but the counter bearing G and thus the spring leg 4.2 of the return spring 4 supported on it is also moved in the direction of the position of use, and/or the return spring 4 is no longer tensioned due to the lack of contact with the counter bearing G during the movement into the usage position, but instead remains in its state of tension, for example, or is somewhat, but not completely, relaxed. This avoids an additional load on a drive, in particular the electric motor, for moving the door handle 3 into the usage position, since the drive, in particular the electric motor, only has to move the door handle 3 and not additionally has to tighten the return spring 4, ie does not have to work against the spring action of the return spring 4 and thus does not have to perform any further spring work. Thus, the drive, in particular the electric motor, has a greater reserve of power and/or a smaller drive, in particular an electric motor, can be used, for example, which results in space advantages. Without this solution, the return spring 4 would be additionally tensioned with each movement of the door handle 3 into the usage position, causing unnecessary losses in the drive and increasing wear on the drive and the return spring 4, thus shortening the service life. The solution described avoids this, reduces wear and increases the service life.

the Figures 1 to 9 show a possible embodiment for realizing the solution described. Here, the return spring 4 is part of the movement arrangement 1, in particular for moving the door handle 3 from the retracted position to the position of use and back. This movement arrangement 1 comprises the connecting lever 5, which is coupled to the door handle 3, in particular to an end region of the door handle 3, in particular is pivotally coupled, as in FIGS figures 8 and 9 shown, as well as the spring tensioning lever 6, the return spring 4 and an eccentric unit 7. The movement assembly 1 with its components and the operation of the movement assembly 1 is in the Figures 1 to 7 shown in detail and will be described in more detail below.

The eccentric unit 7 forms the part of the movement arrangement 1 driven by the drive unit, in particular the electric motor, and in turn drives in particular the connecting lever 5 in order to pivot it and thereby move the door handle 3 into the use position. It is rotatably mounted for this purpose, for example on a bearing bracket of the door handle arrangement 2. For this purpose, it is fixedly arranged on a drive axle 8 and rotatably mounted on the bearing bracket by means of this drive axle 8, ie the drive axle 8 can be rotated on the bearing bracket stored. The drive axle 8 and via this the eccentric unit 7 is coupled to the drive, in particular to the electric motor, for example via a worm gear or another gear.

The eccentric unit 7 forms the counter bearing G for the restoring spring 4, which is coupled to the eccentric unit 7 via the spring tensioning lever 6 in the retracted position and the use position. The eccentric unit 7 is arranged on the bearing bracket and thus on a component part of the door handle arrangement 2 which is fixed, at least fixed when the door handle 3 is in the retracted position and in the usage position. The door handle arrangement 2 is fastened or can be fastened to the door via this bearing bracket.

The connecting lever 5 and the spring tensioning lever 6 are pivotably mounted about a common pivot axis 9 and pivotable about this pivot axis 9 relative to one another. The pivot axis 9 is also arranged in the bearing bracket and thus in a fixed position relative to the bearing bracket. The return spring 4 is coupled to a spring contact area 10 of the connecting lever 5 and to a spring contact area 11 of the spring tensioning lever 6, in particular with a respective spring leg 4.1, 4.2, in such a way that a pivoting movement of the spring contact area 11 of the spring tensioning lever 6 in the direction of the spring contact area 10 of the connecting lever 5 can be relaxed and tensioned by an opposite pivoting movement. As already described, the return spring 4 is coupled in the retracted position and the use position via the spring tensioning lever 6 to the eccentric unit 7 forming the counter bearing G, so that the spring tensioning lever 6 is then immovable and thus, for example, also the connecting lever 5 and thus also the door handle 3 due to the bias of the return spring 4 holds immobile. In particular, in the lowered position, this prevents the door handle 3 from rattling, for example.

The eccentric unit 7 rotatably mounted by means of the drive axle 8 and driven by the drive, in particular the electric motor, has a connecting lever eccentric cam 12 for guiding the connecting lever 5 and a spring tensioning lever eccentric curve 13 for guiding the spring tensioning lever 6 . These eccentric cams 12, 13 are arranged in two different planes, so that the eccentric unit 7 has two eccentric disks which are arranged one above the other and are fixed to one another or are made in one piece and each have one of the eccentric cams 12, 13.

• durch Drehen der Exzentereinheit 7, dargestellt in den Figuren 2 , 5 , 6 und 8 durch einen ersten Bewegungspfeil P1, die Bewegungsanordnung 1 aus der eingefahrenen Stellung, in welcher der Türgriff 3 in der versenkten Stellung positioniert ist, in die ausgefahrene Stellung überführbar ist, in welcher der Türgriff 3 in der Nutzungsstellung positioniert ist, wie in Figur 8 durch einen die Bewegung des Türgriffs 3 verdeutlichenden zweiten Bewegungspfeil P2 dargestellt,
• der Verbindungshebel 5 und der Federspannhebel 6 in der eingefahrenen Stellung und der ausgefahrenen Stellung derart relativ zueinander positioniert sind, dass die Rückstellfeder 4 teilweise gespannt ist,
• der Verbindungshebel 5 während der Drehbewegung der Exzentereinheit 7 an der Verbindungshebelexzenterkurve 12 anliegt, zweckmäßigerweise auch in der eingefahrenen Stellung und der ausgefahrenen Stellung, und
• der Federspannhebel 6 in der eingefahrenen Stellung und der ausgefahrenen Stellung, insbesondere mit einem Kontaktabschnitt 17, an der Federspannhebelexzenterkurve 13 anliegt und dazwischen von der Federspannhebelexzenterkurve 13 beabstandet ist. Der Kontaktabschnitt 17 des Federspannhebels 6 ist insbesondere vom Federanlagebereich 11 des Federspannhebels 6 beabstandet, insbesondere an einem anderen Ende des Federspannhebel 6 als der Federanlagebereich 11 angeordnet.

The eccentric cams 12, 13 are designed such that

• by turning the eccentric unit 7 shown in FIGS figures 2 , 5 , 6 and 8th by a first movement arrow P1, the movement arrangement 1 can be transferred from the retracted position, in which the door handle 3 is positioned in the retracted position, to the extended position, in which the door handle 3 is positioned in the use position, as in FIG figure 8 represented by a second movement arrow P2 which illustrates the movement of the door handle 3,
• the connecting lever 5 and the spring tensioning lever 6 are positioned relative to one another in the retracted position and the extended position in such a way that the return spring 4 is partially tensioned,
• the connecting lever 5 bears against the connecting lever eccentric cam 12 during the rotary movement of the eccentric unit 7, expediently also in the retracted position and the extended position, and
• the spring tensioning lever 6 in the retracted position and the extended position, in particular with a contact section 17, rests against the spring tensioning lever eccentric curve 13 and is spaced apart from the spring tensioning lever eccentric curve 13 in between. The contact section 17 of the spring tensioning lever 6 is in particular spaced apart from the spring contact area 11 of the spring tensioning lever 6 , in particular arranged at a different end of the spring tensioning lever 6 than the spring contact area 11 .

The connecting lever 5 is thus moved about the pivot axis 9 by means of the connecting lever eccentric cam 12 from a connecting lever starting position (retracted position of the movement arrangement), shown in FIG figure 1 and figure 4 to a connecting lever end position (extended position of the moving assembly) shown in FIGS Figures 3 and 7 , pivotable, as in the figures 2 , 5 , 6 and 8th shown by a third movement arrow P3. The spring tensioning lever 6 is in the retracted position of the movement arrangement 1 in a tensioning lever starting position ( figures 1 and 4 ), where the

Spring contact areas 11, 10 of the spring tensioning lever 6 and connecting lever 5 are spaced apart from one another in such a way that the return spring 4 is pretensioned, ie slightly tensioned, in particular in such a way that it rests firmly against the two spring contact areas 11, 10 and thus does not rattle. This is in the figures 1 and 4 shown by the spaced apart spring abutment areas 10, 11 between which there is a gap.

In the extended position of the movement arrangement 1, the spring tensioning lever 6 is in a tensioning lever end position ( Figures 3 and 7 ), wherein advantageously the spring contact areas 11, 10 of the spring tensioning lever 6 and the connecting lever 5 are again spaced apart from one another in such a way that the return spring 4 is pretensioned, i.e. slightly tensioned, in particular in such a way that it rests firmly on the two spring contact areas 11, 10 and thus does not rattle . This is in the Figures 3 and 7 shown by the spring abutment areas 10, 11 again spaced apart, between which there is a gap.

In the tensioning lever initial position and tensioning lever end position, the spring tensioning lever 6 rests against the spring tensioning lever eccentric cam 13, as in FIGS figures 1 and 3 and 4 and 7 shown. In between, i.e. between the initial position of the clamping lever and the end position of the clamping lever and thus during the movement into the extended position and thereby during the movement of the door handle 3 into the position of use, the spring clamping lever 6 is spaced apart from the spring clamping lever eccentric cam 13, i.e. it no longer rests against it and can thus pivot freely about the pivot axis 9, according to the direction of the third movement arrow P3, as in Figs figures 2 and 5 and 6 , which show intermediate positions of the movement arrangement 1.

Due to the previously prestressed return spring 4 between the spring tensioning lever 6 and the connecting lever 5, the spring contact area 11 of the spring tensioning lever 6 approaches the spring contact area 10 of the connecting lever 5 while the return spring 4 relaxes and, for example, rests against it, as in figure 2 as well as in the figures 5 and 6 recognizable due to the now closed gap between the contact areas 11, 10 of the spring tensioning lever 6 and the connecting lever 5, and is then pivoted due to the connection via the return spring 4 together with the connecting lever 5 and the return spring 4. This takes place until the connecting lever 5 has reached the connecting lever end position and the spring tensioning lever 6 is again in contact with the spring tensioning lever eccentric cam 13, by which it is moved into its tensioning lever end position, as a result of which the spring contact areas 10, 11 are spaced apart again in such a way that the return spring 4 is re-biased as in figure 3 and figure 7 shown. During the movement, the return spring 4 is thus decoupled from the counter bearing G formed by the eccentric unit 7 and is not tensioned, in particular not additionally tensioned.

The connecting lever eccentric cam 12 is designed in such a way that the connecting lever 5 in the retracted position ( figure 1 and figure 4 ) on a first connection lever contact section 12.1 and in the extended position ( figure 3 and figure 7 ) rests against a second connecting lever contact section 12.2 of the connecting lever eccentric cam 12, the first connecting lever contact section 12.1 being at a smaller distance from the drive axle 8 than the second connecting lever contact section 12.2. In particular, the first connecting lever contact section 12.1 has the smallest distance between the connecting lever eccentric cam 12 and the drive axle 8 second connecting lever contact section 12.2 has the greatest distance between the connecting lever eccentric cam 12 and the drive axle 8. As a result, the increasing movement, in particular pivoting out, of the connecting lever 5 and thus the increasing extension of the door handle 3 into the position of use is made possible, as compared in FIG figures 1 and 3 , compared the figures 4 and 7 as well as in comparison of figures 8 and 9 to recognize. By turning the eccentric unit 7, the connecting lever 5 slides or rolls along the connecting lever eccentric curve 12 from its first connecting lever contact section 12.1 to its second connecting lever contact section 12.2 and is increasingly pivoted about the pivot axis 9 due to the shape of the connecting lever eccentric curve 12 and its increasing distance from the drive axis 8. i.e. increasingly deflected, from the connecting lever initial position, in which the door handle 3 is arranged in the retracted position, to the connecting lever end position, in which the door handle 3 is arranged in the use position, the door handle being moved out of the retracted position by means of the connecting lever 3 moving in this way Position is moved to the use position.

The spring tensioning lever eccentric cam 13 is designed such that the spring tensioning lever 6 rests against a first spring tensioning lever contact section 13.1 in the retracted position and on a second spring tensioning lever contact section 13.2 of the spring tensioning lever eccentric curve 13. The first spring tensioning lever contact section 13.1 is at a greater distance from the drive axle 8 than the second spring tensioning lever contact section 13.2. In particular, the first spring tensioning lever contact section 13.1 has the greatest distance between the spring tensioning lever eccentric curve 13 and the drive axle 8 and the second connecting lever contact section 13.2 has the smallest distance between the spring tensioning lever eccentric curve 13 and the drive axle 8. As a result, the concerns of the spring tensioning lever cam 13 on the pivoted with the connecting lever 5 spring tensioning lever 6 in the Clamping lever end position ensured. Thus, in the tensioning lever initial position, i.e. in the retracted position of the movement arrangement 1 and thus in the lowered position of the door handle arrangement 2 and thus the door handle 3, the first spring tensioning lever contact section 13.1 of the spring tensioning lever eccentric curve 13 of the eccentric unit 7 forms the counter bearing G for the spring tensioning lever 7 and thus for the Return spring 4, as in the figures 1 and 4 shown, with the counter bearing G thus being in the retracted counter bearing position, and in the clamping lever end position, i.e. in the extended position of the movement arrangement 1 and thus in the usage position of the door handle arrangement 2 and thus of the door handle 3, the second spring tensioning lever contact section 13.2 forms the spring tensioning lever eccentric curve 13 of the eccentric unit 7, the counter bearing G for the spring tensioning lever 6 and thus for the return spring 4, as in the figures 4 and 7 shown, with the counter bearing G now being in the extended counter bearing position due to the rotation of the eccentric unit 7 .

The spring tensioning lever 6 advantageously has a recess for the passage of the first spring tensioning lever contact section 13.1 during the rotational movement of the eccentric unit 7. This enables the greatest possible rotational movement of the eccentric unit 7 in order to achieve the greatest possible movement path of the door handle 3 . The passage of the first spring tensioning lever contact section 13.1 through this recess of the spring tensioning lever 6 is in figure 3 and figure 7 recognizable, the recess here being located on a rear side of the spring tensioning lever 6 facing the eccentric unit 7 . This allows the eccentric unit 7 to rotate by 360°, for example, and in particular a particularly long connecting lever eccentric curve 12 for moving the connecting lever 5 is achieved, which can therefore be done with little effort, for example.

In the example shown, the connecting lever 5 has a roller 14 for rolling on the connecting lever eccentric curve 12 of the eccentric unit 7 .

This enables low-friction and low-wear movement of the connecting lever 5 and thus of the door handle 3, so that only a small amount of force is required for the drive unit, in particular the electric motor, and a long service life is achieved.

As in figure 8 and figure 9 shown, the movement arrangement 1, in particular the connecting lever 5, is coupled to a further movement arrangement 15, which is coupled to the other end region of the door handle 3, in particular is pivotally coupled. As a result, both end regions of the door handle 3 can be moved by means of a single drive unit, for example by means of a single electric motor, so that the door handle 3 can be moved, for example by a parallel displacement, from the retracted position into the use position, as compared in FIG figures 8 and 9 recognizable. For this purpose, a force transmission rod 16 is arranged between the movement arrangement 1, in particular its connecting lever 5, and the further movement arrangement 15 and is connected to the movement arrangement 1, in particular to its connecting lever 5, and the further movement arrangement 15, so that the two movement arrangements 1, 15 are coupled to one another are.

The door handle 3 is moved into the retracted position, for example, by means of the spring tensioning lever 6, in particular by moving it by means of the eccentric unit 7 and the spring tensioning lever eccentric curve 13, in particular by rotating the eccentric unit 7 in the opposite direction to move the door handle 3 into the position of use. The spring tensioning lever 6 pivots as a result back about the pivot axis 9, ie in the opposite direction to moving the door handle 3 into the position of use. The return spring 4 is used in particular to take the door handle 3, more precisely the connecting lever 5 and thus the door handle 3 the door handle 3 coupled to the spring tensioning lever 6, more precisely the connecting lever 5 coupled via the return spring 4 to the spring tensioning lever 6 and thereby also the door handle 3, whereby the door handle 3 is moved back into the retracted position.

REFERENCE LIST

1

movement arrangement

2

door handle assembly

3

door handle

4

return spring

4.1, 4.2

feather leg

5

connecting lever

6

spring tension lever

7

eccentric unit

8th

drive axle

9

pivot axis

10

Spring contact area connecting lever

11

Spring contact area spring tensioning lever

12

Link Lever Eccentric Cam

12.1

first connecting lever abutment section

12.2

second connecting lever abutment section

13

Spring tensioning lever cam

13.1

first spring tensioning lever contact section

13.2

second spring tensioning lever contact section

14

role

15

further movement arrangement

16

power transmission rod

17

contact section

G

counter bearing

P1

first movement arrow

p2

second movement arrow

P3

third movement arrow

Claims (9)

1. Door handle assembly (2), in particular door outside handle assembly, for a door, in particular for a vehicle door, comprising a door handle (3), which is movable from a recessed position into a use position, and a restoring spring (4), wherein the restoring spring (4) is coupled to the door handle (3) and, in the recessed position and in the use position, is coupled to a counter bearing (G) which is at least then stationary, wherein the restoring spring (4) is decoupled from the counter bearing (G) between the recessed position and the use position.
2. Door handle assembly (2) according to Claim 1,
   wherein the counter bearing (G) takes up a retracted counter bearing position in the recessed position and takes up an extended counter bearing position in the use position and, during the movement of the door handle (3) from the recessed position into the use position, is transferable out of the retracted counter bearing position into the extended counter bearing position.
3. Door handle assembly (2) according to either of the preceding claims,
   comprising a spring tensioning lever (6) and an eccentric unit (7), wherein the restoring spring (4) is coupled to a spring contact region (11) of the spring tensioning lever (6), wherein the eccentric unit (7) is mounted rotatably and has a spring-tensioning-lever eccentric cam (13) for guiding the spring tensioning lever (6), and wherein the spring-tensioning-lever eccentric cam (13) is designed in such a manner that, in the recessed position of the door handle and in the use position of the door handle, the spring tensioning lever (6) lies against the spring-tensioning-lever eccentric cam (13) and, between said positions, is spaced apart from the spring-tensioning-lever eccentric cam (13).
4. Door handle assembly (2) according to Claim 3,
   wherein the restoring spring (4) is part of a movement assembly (1), in particular for moving the door handle (3) out of the recessed position into the use position and back, said movement assembly comprising a connecting lever (5), which is coupled, in particular coupled pivotably, to the door handle (3), in particular to an end region of the door handle (3), the spring tensioning lever (6), the restoring spring (4) and the eccentric unit (7), wherein the connecting lever (5) and the spring tensioning lever (6) are mounted pivotably about a common pivot shaft (9) and are pivotable relative to each other about said pivot shaft (9), wherein the restoring spring (4) is coupled to a spring contact region (10) of the connecting lever (5) and to the spring contact region (11) of the spring tensioning lever (6) in such a manner that it is relaxable by means of a pivoting movement of the spring contact region (11) of the spring tensioning lever (6) in the direction of the spring contact region (10) of the connecting lever (5) and is tensionable by an opposite pivoting movement, wherein the eccentric unit (7) is mounted rotatably and has a connecting-lever eccentric cam (12) for guiding the connecting lever (5) and the spring-tensioning-lever eccentric cam (13) for guiding the spring tensioning lever (6), and wherein the eccentric cams (12, 13) are designed in such a manner that,

   - by rotation of the eccentric unit (7), the movement assembly (1) is transferable out of a retracted position, in which the door handle (3) is positioned in the recessed position, into an extended position, in which the door handle (3) is positioned in the use position,

   - the connecting lever (5) and the spring tensioning lever (6) are positioned relative to each other in the retracted position and in the extended position in such a manner that the restoring spring (4) is partially tensioned,

   - the connecting lever (5) lies against the connecting-lever eccentric cam (12) during the rotational movement of the eccentric unit (7), and

   - the spring tensioning lever (6) lies against the spring-tensioning-lever eccentric cam (13) in the retracted position and in the extended position and, between said positions, is spaced apart from the spring-tensioning-lever eccentric cam (13).
5. Door handle assembly (2) according to Claim 3 or 4, wherein the eccentric unit (7) and/or the pivot shaft (9) are arranged on a bearing bracket.
6. Door handle assembly (2) according to one of Claims 3 to 5,
   wherein the eccentric unit (7) is arranged fixedly on a drive shaft (8) or is formed integrally therewith and is rotatable by rotation of the drive shaft (8).
7. Door handle assembly (2) according to Claim 6,
   wherein the eccentric unit (7) is arranged on the bearing bracket via the drive shaft (8) which is mounted rotatably in the bearing bracket.
8. Door handle assembly (2) according to one of Claims 4 to 7,
   wherein the movement assembly (1), in particular the connecting lever (5), is coupled to a further movement assembly (15) which is coupled, in particular is coupled pivotably, to the other end region of the door handle (3).
9. Door handle assembly (2) according to Claim 8,
   wherein a force transmission rod (16) is arranged between the movement assembly (1), in particular the connecting lever (5) thereof, and the further movement assembly (15).

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