Assembly for a motor vehicle for adjusting an adjustment device

Abstract

An assembly for a motor vehicle for adjusting an adjusting device is solved, wherein the assembly has a flexible pulling means which has a working section via which an adjusting force can be transmitted from the flexible pulling means to the adjusting device, wherein the flexible pulling means has an actuating section on each side of the working section via which the adjusting force can be transmitted to the flexible pulling means. The assembly has one or at least two deflection axes at which the working section is deflected, wherein the adjusting force can be transmitted from the flexible pulling means to the adjusting device via the deflection axis or one of the at least two deflection axes. At least the working section extends in a meandering shape in one viewing direction along the one or the at least two deflection axes.

Description

[0001] The proposed solution relates to an assembly for a motor vehicle according to claim 1, a system according to claim 13 and a motor vehicle seat according to claim 14.

[0002] The assembly can be used to adjust an adjusting device, such as a locking device or a locking device in a motor vehicle. The assembly can be used to adjust an adjusting element, such as a lock latch or a locking element, in a manner that is convenient for a user. The locking device can be unlocked in this way, and the locking device can be unlocked in this way.

[0003] In the case of motor vehicle seats, the adjustment of such an adjustment device by the user is normally not necessary because motor vehicle seats are often adjustable using a drive device. Any necessary actuation of an adjustment assembly is then generally carried out automatically as a result of the actuation of the drive device. However, even in a motor vehicle seat that is adjustable using a drive device, it can be useful to provide an assembly for adjusting the adjustment device in order to enable adjustment by the user in an emergency situation in the event of a malfunction of the drive device - e.g., in the event of a power failure after an accident (emergency release).

[0004] An assembly known from DE 10 2021 213 917 A1 comprises a flexible traction mechanism that can be actuated via two ends to adjust an adjustment device. Actuation via the two ends is made possible by the flexible traction mechanism being deflected several times at a deflection assembly and a driver. The deflection assembly has two stacked deflection pulleys for this purpose.

[0005] When using a tension belt as a flexible traction device, such an assembly can require a relatively large amount of installation space transverse to the direction of extension of the tension belt due to the two pulleys stacked on top of each other.

[0006] Against this background, the proposed solution is based on the problem of providing an assembly for a motor vehicle for adjusting an adjustment device that can be conveniently operated by a user and is compact.

[0007] According to a first aspect of the proposed solution, this object is achieved by an assembly for a motor vehicle for adjusting an adjusting device, wherein the assembly comprises a flexible traction means having a working section via which an adjusting force can be transmitted from the flexible traction means to the adjusting device, wherein the flexible traction means has an actuating section on each side of the working section via which the adjusting force can be transmitted to the flexible traction means. The assembly comprises one or at least two deflection axes at which the working section is deflected, wherein the adjusting force can be transmitted from the flexible traction means to the adjusting device via the deflection axis or one of the at least two deflection axes.

[0008] At least the working section extends in a meandering manner when viewed in one direction along one or at least two deflection axes. In principle, the entire flexible traction means (including the working section and at least one actuation section) can extend in a meandering manner. A meandering extension can ensure that the flexible traction means has no crossovers, at least at the working section. By omitting crossovers, the assembly can require little installation space. At the same time, it can enable convenient actuation by a user. The flexible traction means can form an open loop on each deflection axis. A meandering extension can therefore comprise the formation of several open loops.

[0009] In one embodiment, the working section extends in a flat adjustment surface. By providing the working section in a flat adjustment surface, installation space can be saved transversely to a direction of extension of the flexible traction means, in particular of the working section. The adjustment surface can be arranged transversely to the one or at least two deflection axes. In addition, the adjusting force can be transmitted in the adjustment surface to the flexible traction means and / or from the flexible traction means to the adjusting device. The transverse plane can be perpendicular to the adjustment surface or at least to a section thereof. For the transmission to the flexible traction means, the actuating sections can also be arranged in the adjustment surface. In principle, the entire flexible traction means can extend in the (possibly flat) adjustment surface.

[0010] In principle, it is conceivable and possible for the adjustment surface to be non-flat. For example, the adjustment surface can have at least two flat sections offset from one another along a deflection axis. Additionally or alternatively, the adjustment surface can have at least one inclined section or curved section. To form an inclined or curved section, the flexible traction means can be partially guided axially to the deflection axis (in addition to being guided around the deflection axis).

[0011] The two actuating sections can each be arranged at one end of the flexible pulling means. By being arranged on either side of the working section, the working section can be pulled in different, particularly opposite, directions. For example, the actuating sections can enclose an angle of between 150° and 180° between them. This makes it possible to actuate the flexible pulling means, for example, from different sections of a motor vehicle interior (e.g., from a front seat and from a rear seat). The actuating sections can have a gripping element that allows the user to comfortably grasp the flexible pulling means. Alternatively, the actuating sections can form a loop, for example by firmly connecting one end of the flexible pulling means to a section of the flexible pulling means.In particular, in the case of actuating sections designed as loops, a gripping element can be omitted as an additional part, which enables more cost-effective production of the assembly.

[0012] The adjustment force can, for example, be applied manually by a user to one of the actuating sections by pulling on the actuating section. The user can, in principle, pull on both actuating sections simultaneously to transfer the adjustment force to the adjustment device. Alternatively, the adjustment force can be applied to the flexible traction mechanism by an electric drive device arranged on one of the actuating sections. The electric drive device itself can be manually displaced to actuate the associated actuating section (in an emergency).

[0013] The deflection of the working section on one or at least two deflection axes can involve a change in the direction of extension by an angle of more than 90°. In particular, the change in the direction of extension can involve an angle between 90° and 200°, in particular between 160° and 200°, and most particularly more than 180°. In particular, with a change in the direction of extension by an angle of 180° or more, installation space in the adjustment area can be optimized. The use of at least two deflection axes can enable an arrangement of the flexible traction device in the manner of a pulley block. The adjustment force that can be transmitted to the adjustment device during operation is a multiple of the adjustment force transmitted to the flexible traction device.

[0014] In one embodiment, an actuating unit is provided for transmitting the adjustment force from the flexible traction means to the adjustment device. The actuating unit can have an actuating element with a first driver, which can be provided on the deflection axis or one of the deflection axes. The actuating element can be adjustably mounted so that the first driver can be carried along by the working section when the working section is adjusted. The ability to carry the first driver allows the adjustment force to be transmitted from the working section to the actuating element.

[0015] The actuating unit can represent a type of adapter between the flexible traction means and the adjustment device. In particular, the actuating unit can enable coupling of the flexible traction means to the adjustment device without the adjustment device itself having to be adapted for adjustment with the flexible traction means. Rather, the actuating unit can be flexibly adapted to the specifications underlying the design of the adjustment device. The actuating unit can be arranged, for example, on a motor vehicle structure such as a motor vehicle seat frame, on a seat cushion, or on a trim component. For this purpose, the actuating unit can have corresponding coupling and / or adaptation interfaces.

[0016] For example, the actuating element can be mounted translationally and / or rotationally, which enables translation and / or rotation caused by the adjustment force absorbed by the flexible traction means. Accordingly, during the adjustment of the working section, the first driver can be carried along by the working section along a first adjustment path, which can be straight (translational adjustment), curved (rotational adjustment), or a combination of straight and curved sections.

[0017] The first driver can be formed integrally with the actuating element. For example, the first driver can protrude from the actuating element in a dome-shaped manner. Alternatively, the first driver can have a rolling element (rotatable relative to a static bearing) to enable lower resistance when actuating the flexible traction means.

[0018] The first adjustment path extends perpendicular to a transverse plane through which the flexible traction means (in particular its working section) extends at at least two intersection points, with a maximum of one intersection point being arranged along a line parallel to the one or at least two deflection axes. The position of the transverse plane can be arbitrary, with a normal vector of the transverse plane being tangential to the first adjustment path. If a transverse plane exists in which two or more intersection points are arranged along the parallel lines (one above the other), an intersection (or multiple intersections) of the flexible traction means (in particular its working section) can occur in the transverse plane. If a maximum of one intersection point is arranged along the parallel lines, the flexible traction means can thus be arranged in such a way that it does not cross itself (from the perspective of at least one deflection axis).For example, in a meandering work section, it is not possible to define a transverse plane in which more than one intersection point is located along the parallel lines. In this case, the work section does not cross over itself.

[0019] In one embodiment, at least one deflection element is provided, which is arranged on one of the deflection axes. The at least one deflection element can be kinematically coupled to a bearing point on which the actuating element is adjustably mounted. In principle, the flexible traction means can be deflected on more than two deflection axes, wherein the first driver is arranged on one deflection axis and the at least one deflection element is arranged on a further deflection axis. Further deflection elements can be arranged on further deflection axes. The at least one deflection element can, for example, be designed as a rolling element or have a rolling element (rotatable relative to a static bearing) in order to enable lower resistance when actuating the flexible traction means. The at least one deflection element and / or the first driver can each provide a guide surface for the flexible traction means, against which the flexible traction means rests.The guide surface can be designed parallel to the respective deflection axis. Alternatively, the guide surface can be designed at an angle (non-zero) to the deflection axis. This allows the flexible traction element to be deflected from one plane to another, for example, on a non-planar adjustment surface. In particular, a sufficiently flexible tension belt can be provided for the flexible traction element. The adjustment force can thus be transmitted spatially (not just in one plane) to the flexible traction element.

[0020] Due to the kinematic coupling of the at least one deflection element to the bearing point, the first driver can be adjustable relative to the at least one deflection element. The kinematic coupling can comprise a fixed arrangement of the at least one deflection element relative to the bearing point. In particular, the actuating element can be mounted on the adjustment device via the bearing point. The at least one deflection element can thus be fixed relative to the adjustment device.

[0021] In one embodiment, the actuating element has a guide section which is designed and provided to interact with a second driver of the actuating unit for arrangement on the adjusting device for adjusting the adjusting device. The adjusting force can be transmitted from the actuating element to the adjusting device via the second driver. For example, the adjusting device can have an adjusting element on which the second driver can be arranged such that it drives the adjusting element along during adjustment. In particular, the second driver can be used to implement a function of the actuating unit as an adapter which enables the flexible traction means to interact with the adjusting device. The second driver can be flexibly adapted to the (possibly fixed) adjusting element of the adjusting device.Therefore, no modification of the adjustment device is required to use the assembly with the adjustment device. This can enable a cost-effective connection of the assembly to existing adjustment devices. For example, the adjustment element can be a metal part. The second driver can be designed in such a way that the guide section (possibly made of plastic) is protected from damage by the adjustment element during operation.

[0022] Providing a guide section on the actuating element can represent a cost-effective way to enable the interaction of the actuating element with the second driver. The actuating element can, for example, be formed integrally with the first driver and the guide section, in particular from plastic.

[0023] In one embodiment, the guide section interacts with the second driver in the manner of a slotted guide. In such a embodiment, an engagement opening in the actuating element, into which the second driver engages, is suitable as the guide section. Such an engagement opening can be produced cost-effectively. Alternatively, the guide section can protrude from the actuating element, which enables a flexible design of the interaction between the second driver and the actuating element. In particular, the second driver can be guided via the guide section along a second adjustment path. The second adjustment path can have a different shape (e.g. a different length, size and / or a different curvature) than the first adjustment path. Additionally or alternatively, the second adjustment path can be translationally and / or rotationally displaced relative to the first adjustment path.

[0024] In one embodiment, the second driver has at least one support element for support relative to the adjustment device. The at least one support element can protrude from a driver body, via which the second driver can be arranged on the adjustment device, in a direction parallel to the adjustment surface. In particular, the at least one support element can protrude from the driver body in the direction of an adjustment direction in which the second driver can be adjusted upon actuation of the flexible traction means. The support can prevent vibrations from leading to an undesired movement of the second driver relative to the adjustment device. The at least one support element can protrude from the driver body over a length that is greater than a diameter of the driver body measured in a plane parallel to the adjustment surface.

[0025] In one embodiment, the actuating element is preloaded against the working section by a return element. The return element can be provided and configured to cause the actuating element to return after actuation. For this purpose, the return element can be kinematically coupled to the bearing point at which the actuating element is mounted. A return force provided by the return element can be directed counter to the adjustment force that can be applied to the actuating element by actuating the flexible traction means.

[0026] The actuating element can be adjusted between at least two positions via the first driver. In a rest position, the actuating element can be preloaded against the working section. When actuating the flexible traction mechanism, it may therefore be necessary for the adjustment force to be greater than the preload in order to achieve adjustment of the actuating element. In a stop position, the actuating element can be adjusted to its maximum relative to the rest position. The stop position can be defined, for example, by a stop element of the actuating unit against which the actuating element strikes.

[0027] In one embodiment, the actuating element is pretensioned into the rest position by the return element, wherein in the rest position the guide section is spaced from the second driver. When the flexible traction means is actuated, adjustment of the adjusting device via the second driver only occurs after overcoming a free travel over which the actuating element can be adjusted in order to interact (via the guide section) with the second driver. This makes it possible to compensate for tolerances with respect to the adjusting device. The actuating element can thus first be adjusted from the rest position into an activation position before it can be adjusted into the stop position. The activation position can be defined by the guide section being coupled to the second driver. For example, such a coupling can be made possible by the guide section bearing against the second driver.In contrast, the guide section can be decoupled from the second driver in the rest position. For example, such decoupling can be enabled by spacing the guide section from the second driver.

[0028] In one embodiment, the flexible traction means has a counter element on each actuating section, which is designed and provided to interact with a respective stop element that is kinematically coupled to a bearing point on which the actuating element is adjustably mounted, in order to provide an abutment for the preload applied by the return element. The preload applied to the working section by the return element can cause the actuating sections to be pulled along the extension direction of the working section in the direction of the at least one deflection element. For example, the at least one deflection element and the first driver can be arranged in a housing, wherein the actuating sections are arranged outside the housing.The stop elements can be arranged on the housing (or form a section of the housing) so that the counter elements can prevent the actuating sections from being drawn into the housing. This enables trouble-free operation of the assembly because, for example, compression of the flexible traction element caused by its being drawn into the housing cannot occur.

[0029] In one embodiment, a first contact section and / or a second contact section is provided on the actuating element, which are designed and intended to cooperate with the flexible traction means for guiding the latter.

[0030] In one embodiment, the flexible traction device comprises a tension belt. The tension belt can be belt-shaped. For example, the tension belt can be more than four times, in particular 10 to 25 times, wider than its height in cross-section. This can ensure sufficient strength during actuation while providing sufficient stability against undesired folding of the traction device. For example, the tension belt can be 1.0 to 1.5 mm high and 15.0 to 25.0 mm wide. The use of a tension belt can enable a pleasant and safe user experience when using the assembly. When the assembly is used with a locking device as an adjustment device, a tension belt release for the adjustment device can thus be provided. In particular, the working section and the two actuating sections can be formed from a one-piece tension belt.This allows these sections to be designed in a user-friendly manner and also allows the flexible traction device to be manufactured cost-effectively and easily.

[0031] According to a second aspect of the proposed solution, the problem is solved by a system comprising an assembly for a motor vehicle according to the first aspect of the proposed solution and an adjusting device with an adjusting element that is adjustable with the assembly. The adjusting device can, for example, comprise a locking device, a locking device, or a blocking device.

[0032] According to a third aspect of the proposed solution, the problem is solved by a motor vehicle seat. The motor vehicle seat has a seat part, a backrest that is pivotably mounted relative to the seat part, and an adjusting device. The adjusting device is adjustable between a first state and a second state. In the first state, the adjusting device prevents the backrest from pivoting. In the second state, the adjusting device allows the backrest to pivot. For example, the first state can be a locked state of an adjusting device designed as a locking device, and the second state can be an unlocked state. The motor vehicle seat further comprises an assembly according to a first aspect of the proposed solution for adjusting the adjusting device between the first and second states.For example, by operating the assembly, a locking device can be moved from the locked to the unlocked state.

[0033] The attached figures illustrate exemplary embodiments of the proposed solution.

[0034] Here, Fig. 1 a view of a motor vehicle seat with an assembly; Fig. 2 a schematic view of a flexible traction means; Fig. 3 a schematic view of an assembly with an actuating element; Fig. 4 a sectional view through an assembly on an adjustment device; Fig. 5A is a view of an assembly with an actuator in a rest position; Fig. 5B is a view of an assembly with an actuator in a stop position; Fig. 6 a view of a flexible traction means and a support assembly; Fig. 7 an interior view of a support assembly on which a flexible traction means is arranged; Fig. 8 views of elements of an operating unit; Fig. 9 a view of an actuating unit on an adjusting device; and Fig. 10 a view of an adjustment device.

[0035] Fig. 1 shows a view of a motor vehicle seat with a seat part S and a backrest L arranged thereon. The backrest L is mounted so as to be pivotable about a pivot axis A relative to the seat part S. The backrest L can be adjusted from an upright position into a horizontal position resting on the seat part S (dashed backrest L'). The pivoting of the backrest L can be carried out via an electric drive unit and / or manually. For example, the backrest L can be pivoted about the pivot axis A to implement an easy-entry function. The backrest L is in the upright position, which is shown in the Fig. 1, can be locked by an adjusting device 4 in the form of a locking device, so that pivoting of the backrest L is blocked. To unlock the locking device, an assembly B is arranged on the locking device. The assembly B has a flexible pulling means 1, which in turn has two actuating sections 11, 12. The assembly B is designed and intended to interact with the locking device in such a way that actuation of the flexible pulling means 1 via one of the actuating sections 11, 12 effects an adjustment of the locking device, via which the backrest L is unlocked, so that pivoting of the backrest L is possible.

[0036] A first actuating section 11 protrudes from the backrest L from a section of the backrest L facing away from the seat part S. A second actuating section 12 protrudes from a section of the backrest L facing the seat part S. The first actuating section 11 can be actuated, for example, by a user sitting behind the vehicle seat. The second actuating section 12 can be actuated by a user sitting on the vehicle seat. Because the actuating sections 11, 12 protrude in opposite directions from the assembly B, they can be conveniently actuated from different sides of the backrest L.

[0037] Fig. 2 shows, by way of example, a working section 101, 102 of the flexible traction means 1, via which an adjusting force can be transmitted to the adjusting device 4. The working section 101, 102 is deflected about a deflection axis U1. Viewed along the deflection axis U1, the working section 101, 102 extends in a meandering manner. This forms an open loop on the deflection axis U1. A first traction means section 101 runs in a first direction toward the deflection axis U1, and a second traction means section 102 runs in a second direction away from the deflection axis U2, the first direction being opposite to the second direction. The adjusting force can be transmitted to the adjusting device 4 via the deflection axis U1.

[0038] For example, a first driver 20 can be arranged on the deflection axis U1, which absorbs the adjustment force applied by the flexible traction means 1 and is thereby carried along an adjustment path V1. The first adjustment path V1 is perpendicular to a transverse plane K. The transverse plane K is thus defined (in its orientation) by the first adjustment path V1. The flexible traction means 1 extends through the transverse plane K with a first and a second traction means section 101, 102, thereby defining two intersection points K1, K2 in the transverse plane K. In principle, the flexible traction means 1 can extend through the transverse plane K with any number of traction means sections. This can be achieved, for example, by the flexible traction means 1 being deflected at least twice (for example to create a pulley system). With two deflections, for example, three intersection points can be formed.Other guides of the working section relative to the transverse plane are also conceivable and possible. For all conceivable transverse planes, the two intersection points K1, K2 lie on different parallels U1', U1' to the deflection axis U1. Crossing of the working section 101, 102 with itself is thus excluded, so that the flexible traction element 1 along the deflection axis U1 can require little installation space. With multiple deflection axes, the intersection points can lie on different parallels to each of the deflection axes. Then, for no transverse plane, as defined above, is there a parallel to a deflection axis on which two intersection points lie.

[0039] Fig. 3 shows a schematic view of assembly B viewed along two deflection axes U1, U2. Assembly B comprises a flexible traction means 1 that engages a first driver 20 via a working section. The first driver 20 is arranged on one of the two deflection axes U1, on which the working section is deflected. The working section is a section of the flexible traction means 1 that is arranged between two actuating sections 11, 12. The working section comprises three traction means sections 101, 102, 103. A first traction means section 101 extends from a first stop element 321 to the first driver 20. The first stop element 321 is designed and provided to cooperate with a first counter element 13 of the flexible traction means 1 in order to prevent an adjustment of the flexible traction means 1 in the direction of the first driver 20 beyond a position that can be predetermined by the first counter element 13.For this purpose, the first counter-element 13 strikes the first stop element 321 when the predeterminable position is reached. In the present case, the first actuating section 11 (as well as the second actuating section 12) is designed as a loop, at the base of which the first counter-element 13 is arranged. Specifically, the first counter-element 13 fixes an end of the flexible traction means 1, which end has been folded over onto the actuating section 11, to the flexible traction means 1. In principle, the first actuating section 11 can have any desired shape. In principle, the first counter-element 13 itself - for example, designed as a gripping element for a user to grasp - is sufficient to provide a suitable first actuating section 11. The second actuating section 12 is constructed analogously.

[0040] A second traction means section 102 extends from the first driver 20 to a deflection element 30. The second traction means section 102 extends in a direction opposite to the first traction means section 101. Specifically, the flexible traction means 1 is deflected by over 180° on the first driver 20. For this purpose, the deflection element 30 is arranged at a shorter distance from the first traction means section 101 (in an adjustment surface E in which the working section is arranged) than a length of a diameter of the first driver 20. In principle, any number of deflection elements 30 can be provided, which are arranged in the adjustment surface E at a shorter distance from one another than a length of their diameter in the adjustment surface E. The adjustment surface E is, by way of example, flat. The flexible traction means 1 and in particular its working sections 101, 102, 103 therefore extend in one plane.In principle, the actuating sections 11, 12 can extend outside the plane.

[0041] A third traction means section 103 extends from the deflection element 30 to a second stop element 322. The second stop element 322 is designed and provided to interact with a second counter element 14 of the flexible traction means 1 in order to prevent adjustment of the flexible traction means 1 in the direction of the deflection element 30 beyond a position predeterminable by the second counter element 14. The interaction of the two counter elements 13, 14 with the respective stop elements 321, 322 is analogous. The second actuating section 12 is identical to the first actuating section 11. In principle, the two actuating sections 11, 12 can also be designed differently. The working section is pretensioned by the first driver 20 against the two stop elements 321, 322 and via the deflection element 30. In the rest position, the flexible traction means 1 is thus tensioned.In particular, the actuating sections 11, 12 are pulled against the stop elements 321, 322 by the preload.

[0042] The first and second traction means sections 101, 102 together form a first open loop on the first driver 20. The second and third traction means sections 102, 103 together form a second open loop on the deflection element 30. The first and second loops are part of a meandering course of the working section 101, 102, 103 (at least between the stop elements 321, 322) in a viewing direction along the deflection axes U1, U2.

[0043] An example is Fig. 3 shows an actuation of the second actuating section 12 in the adjustment area E along a third arrow P3. The second actuating section 12' adjusted by the actuation is shown in dashed lines. The actuation causes an adjustment of the flexible traction means 1 about the second deflection axis U2 on the deflection element 30. A part of the third traction means section 103 is thereby displaced in the direction of the second actuating section 12 beyond the second stop element 322. The third traction means section 103 is lengthened at the expense of the second traction means section 102. The second traction means section 102 is shortened because the first driver 20 is displaced by the adjustment of the traction means 1 from the second traction means section 102 in the direction of the deflection element 30 along a second arrow P2 to a position of the first driver 20' shown in dashed lines.In addition, the third traction mechanism section 103 is lengthened at the expense of the first traction mechanism section 101. The shortening of the first traction mechanism section 101 is made possible by the fact that the first counter-element 13 is held by the first stop element 321 against a pulling direction along the third arrow P3. As a result, adjusting forces act on the first driver 20 along a first arrow P1 along the first traction mechanism section 101 and along the second arrow P2 along the second traction mechanism section 102. The adjustment of the first driver 20 thus takes place in the manner of a pulley system, so that an adjusting force applied by the user is only half as large as the adjusting force acting on the first driver 20.

[0044] The first driver 20 is arranged on an actuating element 21, which is pivotably mounted about a rotational axis R. This mounting is kinematically connected to the deflection element 30 and the first and second stop elements 321, 322. The flexible traction means 1 can thus adjust the first driver 20 relative to a bearing point of the actuating element 21. The adjustment takes place along a rotational adjustment path V1.

[0045] In the stop position, a restoring force acts on the actuating element 21, so that the actuating element 21 is adjusted back to the rest position along the adjustment direction V when the user interrupts the application of the adjustment force to the first actuating section 11 (for example, by releasing the second actuating section 12').

[0046] Fig. 4 shows a sectional view through an assembly B, which is arranged on an adjustment device 4. The sectional plane here is the (flat) adjustment surface E, in which the flexible traction means 1, in particular the working section 101, 102, 103, extends. Analogous to the embodiment according to Fig. 3, the actuating element 21 is shown in a rest position and in a stop position 21' shown in dashed lines. To achieve this adjustment, an adjusting force acts on the actuating element 21.

[0047] A first contact element 26 is provided on the actuating element 21, which has a first contact section 261, which, in the rest position of the actuating element 21, rests against the flexible traction means 1 (on the third traction means section 103). The first contact section 261 serves to support and guide the flexible traction means 1 in order to minimize the installation space required in the rest position. The flexible traction means 1 is thereby clamped between the first contact section 261 and the first driver 20 and held in a defined manner on the first driver 20 and the deflection element 30.

[0048] A second contact section 231 is also provided on the actuating element 21, which, in the rest position of the actuating element 21, rests against the flexible traction means 1 on the third traction means section 103. The second contact section 231 braces the flexible traction means 1 relative to the deflection element 30.

[0049] The adjustment of the actuating element 21 is made possible by the first driver 20, which protrudes transversely from the (flat) adjustment surface E of the actuating element 21, being driven along by the working section. During the adjustment, the working section rotates around the first driver 20 (or a first deflection axis U1 defined by it).

[0050] In this case, the actuating element 21 is rotatably adjustable about a rotational axis R. For the rotational mounting, the actuating element 21 has a bearing element 22 in the form of a circular opening into which a bearing shaft 40 of the adjusting device 4 engages. In principle, the actuating element 21 can alternatively or additionally be mounted translationally on the adjusting device 4.

[0051] The adjustment of the actuating element 21 occurs counter to a restoring force applied by a return element 25 in the form of a spiral spring. The return element 25 is arranged in the adjustment surface E. To apply the return force to the actuating element 21, the return element 25 cooperates with a bearing section 251 of the actuating element 21. The bearing section 251 is formed in this case by a rib of the actuating element 21 extending along the axis of rotation R. The return element 25 presses with one end against a radial section (relative to the axis of rotation R) of the rib. Two sections of the rib, which extend circumferentially around the axis of rotation R, are designed and provided to stabilize the return element 25 in the radial direction (relative to the axis of rotation R). These two sections, in particular the radially inner section, are optional.

[0052] The return element 25 also interacts with a counter-bearing section 271, which is kinematically coupled to the bearing point for the actuating element 21. Specifically, the counter-bearing section 271 is coupled to the adjusting device 4. To couple the counter-bearing section 271 to the adjusting device 4, the assembly B has a support element 27, which is arranged on the adjusting device 4. The counter-bearing section 271 has a pin that protrudes from a rib section of the counter-bearing section. The return element 25 is supported against the rib section. With the pin, the counter-bearing section 271 penetrates into the return element 25, so that the latter is additionally stabilized (transversely to the adjustment direction V). The return element 25 is mounted in an arc around the bearing element 22 in order to be able to exert a constant restoring force on the actuating element 21 in every position.

[0053] The actuating element 21 is adjustable by actuating the flexible traction means 1 to a stop position in which the actuating element 21 (with the guide section 23 for saving tree space) abuts against an actuating stop 273. The actuating stop 273 is kinematically coupled to the bearing point of the actuating element 21. For this purpose, the actuating stop 273 is provided on the support element 27.

[0054] During adjustment from the rest position to the stop position, the actuating element 21 entrains a second driver 24 which is coupled to an adjustment element 41 of the adjustment device 4. For coupling with the adjustment element 41, the second driver 24 has a driver coupling 241. The driver coupling 241 is designed here as a recess in a driver body 240 of the second driver 24. For example, a clip such as an attachment clip is suitable for this purpose. The adjustment element 41 engages in the recess with an adjustment coupling 410 arranged transversely to the adjustment surface E. In principle, the second driver 24 can be designed as desired, so that it can easily couple the assembly B to an adjustment element 41 of any shape.

[0055] The actuating element 21 has a guide section 23 which is designed and provided to cooperate with the second driver 24 for adjusting the adjusting device 4. For this purpose, the guide section 23 is designed as a recess in the actuating element 21. The second driver 24 engages in the recess, whereby it is guided therein in the manner of a slotted guide. A side of a border of the recess which is located on the outside relative to the second driver 24 simultaneously serves as a second contact section 231 in order to design the assembly in a space-saving manner. Another side of the border which is located on the outside relative to the second driver 24 serves in sections as a bearing section 251 for the return element 25 (in particular its stabilization in the radial direction).In principle, the guide section 23 can be designed such that it provides a first contact point against which the second driver 24 can rest during adjustment from the rest position to the stop position, and a second contact point against which the second driver 24 can rest during adjustment from the stop position to the rest position. The first and second contact points can be arranged opposite one another in the circumferential direction in the illustrated rotational adjustment path V1 of the first driver 20. In principle, the guide section 23 can be adapted to any desired adjustment element 41 of the adjustment device 4.For example, a combined rotational and translational adjustment path V2 of the second driver 24 can be achieved via a rotational adjustment of the actuating element 21 by designing the guide section 23 such that the second driver 24 can slide along it translationally during a rotational adjustment. In the present case, the second adjustment path V2, like the first adjustment path V1, represents a rotational adjustment.

[0056] The recess of the actuating element 21 defined by the guide section 23 is larger in the adjustment surface E than the second driver 24. This makes it possible for the second driver 24 to be spaced apart in the rest position from stops of the guide section 23, which can bear against the second driver 24 in order to adjust the second driver 24. In particular, the different sizes can absorb tolerances compared to the adjustment device 4. Furthermore, upon actuation of one of the actuating sections 11, 12, the user may initially primarily feel a counterforce inherent in the assembly B. This includes, for example, the restoring force. When the actuating element 21 is adjusted by actuating one of the actuating sections 11, 12 from the rest position into the activation position, in which the guide section 23 bears against the second driver 24, the counterforce can increase noticeably for the user.Such a system can be seen in the dashed representation of the guide section 23' and the second driver 24' in the stop position.

[0057] In the activation position, the counterforce of assembly B is added to the counterforce inherent in the adjustment device 4. This transition can be perceived by the user as a haptically perceptible threshold during actuation. Furthermore, this can prevent accidental adjustment of the adjustment device 4.

[0058] The second driver 24 further includes a support element 242 that protrudes arcuately from the driver body 240. The support element 242 is arranged in a plane parallel to the (flat) adjustment surface E. The support element 242 stabilizes the second driver 24, also to reduce or completely eliminate noise generation at the second driver 24, which can be caused by vibration.

[0059] Fig. 5A shows a view of assembly B of the above embodiment with the actuating element 21 in the rest position. The adjusting force that can be applied to the flexible traction means 1 is transmitted to the adjusting device 4 via an actuating unit 2. The actuating unit 2 comprises, among other things, the first driver 20, the actuating element 21, the return element 25, the support element 27, and the second driver 24. The support element 27 has a cover section with which the actuating element 21 and the return element 25 are partially covered. In addition, assembly B has a support assembly 3, which partially covers the flexible traction means 1 with a cover element 32. In particular, the support assembly 3 has the two stop elements 321, 322. A viewing opening 33 is provided in the cover element 32, through which the first driver 20 is visible from the outside in the rest position and in the stop position.The support assembly 3 also includes the deflection element 30. The deflection element 30 is arranged on the cover element 32 (on the inside). For example, the deflection element 30 can be dome-shaped. In this case, it protrudes from the cover element 32 transversely to the adjustment surface. The support assembly 3 can be mounted on the support element 27 and / or on the adjustment device 4.

[0060] Fig. 5B shows a view of assembly B after Fig. 5A with the actuating element 21 in the stop position. Accordingly, the first driver 20 is positioned along the adjustment path V1 relative to the Fig. 5A. The adjustment is effected by actuating the second actuating section 12. In principle, the adjustment can also be effected by adjusting the first actuating section 11.

[0061] Fig. 6 shows a view of the flexible traction means 1 and the support assembly 3. The flexible traction means 1 extends in the adjustment surface E. The support assembly 3, with its cover element 32, forms a housing for the flexible traction means 1, which housing partially encloses the flexible traction means 1. Within the housing, the flexible traction means 1 is deflected around two deflection axes U1, U2. To prevent contact between the first traction means section 101 and a section of the flexible traction means 1 guided around the deflection element 30, the support assembly 3 has a separating element 31. The separating element 31 extends tongue-like between the first traction means section 101 and the section of the flexible traction means 1 guided around the deflection element 30.

[0062] Fig. Figure 7 shows an interior view of the support assembly 3 with the flexible traction means 1 arranged thereon. Additionally, the actuating element 21 is shown in dashed lines. The first and second stop elements 321, 322 are provided as sections of the cover element 32 of the support assembly 3.

[0063] Fig. Figure 8 shows views of elements of the actuating unit 2: the actuating element 21, the support element 27, and the return element 25. The guide section 23 of the actuating element 21, which is formed by a bordered recess in the actuating element 21, is closed off to the outside (transverse to the adjustment surface E). The recess is therefore not axially continuous (relative to the rotation axis R), but rather forms a recess in the actuating element 21. In principle, the guide section 23 can form an opening in the actuating element 21.

[0064] In addition, the actuating element 21 has a holding element 28, via which the support element 27 can be held on the actuating element 21 in the axial direction (relative to the axis of rotation R). The holding element 28 is designed such that the actuating element 21 is adjustable in the circumferential direction about the axis of rotation R relative to the support element 27. The support element 27 has a bearing element 272 with which the support element 27 can be mounted on the axis of rotation R of the actuating element 21. The support element 27 is mounted in a rotationally fixed manner on the axis of rotation R. For example, the support element can be mounted on the adjusting device 4 (e.g. on a bearing shaft 40).

[0065] Fig. Figure 9 shows a view of the actuating unit 2 on the adjustment device 4. An arcuate adjustment path is shown, along which the first driver 20 can be adjusted along the adjustment path V1 from the rest position to the stop position. The support element 27 is supported in the radial direction on the actuating element 21 via the holding element 28 of the actuating element 21 and is fixed in the axial direction. For this purpose, the holding element 28 is L-shaped (with an axial and a radially extending section).

[0066] The first and second drivers 20, 24 can be understood as elements that interact kinematically with one another. An adjustment of the first driver 21 can cause an adjustment of the second driver 24. In the rest position, the first driver 20 is preloaded against the working section by the return element 25 via the actuating element 21. Alternatively or additionally, a preload applied to the actuating element 21 by the adjusting device 4 via the second driver 24 can preload the first driver 20 against the working section. In particular, the return element 25 can overcome a frictional resistance that the flexible traction means 1 offers to a return to the rest position (the preload of the adjusting device 4 to a rest position may not be sufficient for this).

[0067] Fig.10 shows a view of the adjusting device 4. The adjusting device 4 has an adjusting element 41, which comprises an adjusting coupling 410, via which the adjusting element 41 is coupled to the driving coupling 241 of the second driver 24. The adjusting coupling 410 has the shape of a tab that is mounted in a driving coupling 241 in the form of a recess (extending axially with respect to the rotation axis R) in the driver body 240 of the second driver 24. As a result, the adjusting element 41 is driven by the second driver 24 when the second driver 24 is adjusted about the rotation axis R. By adjusting the adjusting element 41, pivot elements 42, 43 of the adjusting device 4 can be released.When used on a motor vehicle seat, the adjusting device 4 can be unlocked, for example in the form of a locking device, by releasing it, so that pivoting of the backrest L of the motor vehicle seat becomes possible. List of reference symbols 1 traction device 101, 102, 103 traction section 11, 12, 12' operating section 13, 14 Counter element 2 operating unit 20, 20' first driver 21, 21' Actuator 22 Bearing element 23, 23' leading section 231 second section 24, 24' second driver 240 driver bodies 241 Driving coupling 242 Support element 25 Reset element 251 camp section 26 Investment element 261 first section 27 Support element 271 Counter bearing section 272 bearing element 273 Actuating stop 28 Holding element 3 Carrier assembly 30 deflection element 31 Separator 32 cover element 321, 322 stop element 33 Viewing opening 4 Adjustment device 40 bearing shaft 41 Adjustment element 410 Adjustable coupling 42, 43 Swivel elements A swivel axis B assembly E Adjustment surface F vehicle seat K Transverse plane K1, K2 intersection points L, L' backrest P1, P2, P3 arrow R rotation axis S seat part U1, U2 deflection axis U1', U2' Parallel V Adjustment direction V1, V2 adjustment track

Claims

[1] Assembly (B) for a motor vehicle for adjusting an adjusting device (4), with - a flexible traction means (1) having a working section (101, 102, 103) via which an adjusting force can be transmitted from the flexible traction means (1) to the adjusting device (4), wherein the flexible traction means (1) has an actuating section (11, 12, 12') on each side of the working section (101, 102, 103) via which the adjusting force can be transmitted to the flexible traction means (1), and - at least two deflection axes (U1, U2) on which the working section (101, 102, 103) is deflected, wherein the adjusting force can be transmitted from the flexible traction means (1) to the adjusting device (4) via one of the at least two deflection axes (U1, U2), characterized by that at least the working section (101, 102, 103) extends in a meandering manner in a viewing direction along the at least two deflection axes (U1, U2). [2] Assembly (B) according to claim 1, characterized by that the working section (101, 102, 103) extends in a flat adjustment surface (E). [3] Assembly (B) according to one of claims 1 or 2, characterized by an actuating unit (2) for transmitting the adjusting force from the flexible pulling means (1) to the adjusting device (4), which has an actuating element (21, 21') with a first driver (20, 20') which is provided on one of the at least two deflection axes (U1, U2), wherein the actuating element (21, 21') is adjustably mounted so that the first driver (20, 20') can be carried along by the working section (101, 102, 103) when the working section (101, 102, 103) is adjusted. [4] Assembly (B) according to claim 3, characterized byat least one deflection element (30) which is arranged on one of the at least two deflection axes (U1, U2), wherein the at least one deflection element (30) is kinematically coupled to a bearing point at which the actuating element (21, 21') is adjustably mounted. [5] Assembly (B) according to one of claims 3 or 4, characterized by that the actuating element (21, 21') has a guide section (23, 23') which is designed and provided to cooperate with a second driver (24, 24') of the actuating unit (2) for arrangement on the adjusting device (4) for adjusting the adjusting device (4). [6] Assembly (B) according to claim 5, characterized by that the guide section (23, 23') interacts with the second driver (24, 24') in the manner of a slotted guide. [7] Assembly (B) according to one of claims 5 and 6, characterized bythat the second driver (24, 24') has at least one support element (242) for support against the adjusting device (4). [8] Assembly (B) according to one of claims 3 to 7, characterized by that the actuating element (21, 21') is prestressed against the working section (101, 102, 103) by a return element (25). [9] Assembly (B) according to one of claims 5 to 7 and claim 8, characterized by that the actuating element (21, 21') is pretensioned by the return element (25) into a rest position in which the guide section (23, 23') is spaced from the second driver (24, 24'). [10] Assembly (B) according to one of claims 8 and 9, characterized bythat the flexible traction means (1) has a counter-element (13, 14) on each actuating section (11, 12, 12') which is designed and provided to cooperate with a respective stop element (321, 322) which is kinematically coupled to a bearing point on which the actuating element (21, 21') is adjustably mounted in order to provide an abutment for the pretension applied by the return element (25). [11] Assembly (B) according to one of claims 3 to 10, characterized by that a first contact section (261) and / or a second contact section (231) are provided on the actuating element (21, 21'), which are designed and intended to cooperate with the flexible traction means (1) for guiding the latter. [12] Assembly (B) according to one of the preceding claims, characterized by that the flexible traction means (1) has a traction belt. [13] System comprising an assembly (B) for a motor vehicle according to one of claims 1 to 12 and an adjusting device (4) with an adjusting element (41) which is adjustable with the assembly (B). [14] Motor vehicle seat, with - a seat part (S), - a backrest (L, L') which is pivotally mounted relative to the seat part (S), - an adjusting device (4) which is adjustable between a first state and a second state, wherein the adjusting device (4) prevents the pivoting of the backrest (L, L') in the first state and permits it in the second state, and - an assembly (B) according to one of claims 1 to 12 for adjusting the adjusting device (4) between the first and the second state.

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