Adjustment arrangement for a locking element of a motor vehicle with a body

Abstract

Adjustment arrangement for a locking element (2) of a motor vehicle (3) with a body (4), wherein the adjustment arrangement (1) has two housing parts (6, 7) that are telescopically extendable relative to each other, each with a connection (8) for connecting the adjustment arrangement (1) to the locking element (2) and the body (4), wherein the adjustment arrangement (1) has a spindle (9), a spindle nut tube (10) and a spindle nut (11) arranged on the spindle nut tube (10), wherein the spindle nut tube (10) is rotatably mounted on a first housing part (6) and the spindle (9) is fixedly mounted on a second housing part (7), wherein the spindle (9) and the spindle nut (11) are engaged with each other via a threaded connection (12) such that the spindle nut (11) is moved along the spindle (9) during a rotational movement of the spindle nut tube (10), thereby telescoping the housing parts (6, 7) relative to each other.wherein the adjusting arrangement (1) has a preloading arrangement (13) for preloading the connections (8) relative to each other, characterized in that the preloading arrangement (13) has a torsion spring (14), that the torsion spring (14) preloads the spindle nut tube (10) with the spindle nut (11) in a rotational direction, that the torsion spring (14) is a helical spring, and that the helical spring has a longitudinal axis extending in the axial direction with respect to the longitudinal axis of the spindle nut tube (10).

Description

[0001] The present invention relates to an adjustment arrangement for a locking element of a motor vehicle with a body according to the preamble of claim 1 and a locking element arrangement according to claim 14.

[0002] The adjustment mechanism in question can be assigned to various types of locking elements of a motor vehicle. The term "locking element" is to be understood broadly here and includes, for example, tailgates, hoods, side doors, etc. The adjustment mechanism can be located on the respective locking element and, for example, enable automatic adjustment of the locking element and / or assist manual adjustment of the locking element. For example, it is conceivable that the adjustment mechanism automatically moves the locking element to an open position and / or a closed position. It is also conceivable that the adjustment mechanism holds the locking element in the open position and / or that the adjustment mechanism slows down or assists manual adjustment of the locking element.

[0003] The prior art (DE10 2004 040 170 A1), from which the invention is based, relates to an adjustment arrangement, which here is designed as a spindle drive for automatically adjusting a tailgate. The adjustment arrangement has two housing parts that are telescopically extendable relative to each other, forming a housing. Each of the housing parts has a connection via which the adjustment arrangement can be connected to a tailgate and a motor vehicle body. Inside the housing are a spindle, a spindle nut tube, and a spindle nut arranged on the spindle nut tube, wherein the spindle nut tube is rotatably mounted on a first housing part and the spindle is fixedly mounted on a second housing part. The spindle and the spindle nut engage with each other via a threaded connection, whereby the spindle nut can be moved axially along the spindle during a rotational movement of the spindle nut tube.This allows the housing parts to be telescoped relative to each other, which in turn moves the connections located on the housing parts and ultimately adjusts the tailgate relative to the body.

[0004] The known adjustment mechanism features a preload arrangement with a helical compression spring. This preload arrangement preloads the connections or housing parts relative to each other, specifically in such a way that the adjustment mechanism is preloaded in the direction of an extended position. This can, for example, assist the opening process of the tailgate, allowing the tailgate to be moved from a closed to an open position with comparatively little force, whether manually by a user or automatically by a drive motor. The preload also allows the tailgate to be held in the open position. In general, the preload arrangement improves the adjustment of the locking element with the adjustment mechanism.

[0005] Although the known adjustment mechanism has proven highly effective in a wide variety of applications, its design, particularly the preload mechanism, presents a challenge in ensuring overall operational reliability. Due to the specific conditions (e.g., the weight of the tailgate, leverage ratio, etc.), the known adjustment mechanism requires a comparatively large preload force. This preload force is primarily generated by the helical compression spring, which therefore stores a considerable amount of energy, especially when the adjustment mechanism is in its retracted position.In the event of a defect or damage to the adjustment mechanism, for example during a fire or accident, there is a risk that this stored energy will be released suddenly and the helical compression spring and / or other components of the adjustment mechanism will fly around uncontrollably in a "shot-like" manner.

[0006] Against this background, the invention is based on the problem of designing and further developing the known adjustment arrangement in such a way that the operational safety of the adjustment arrangement, in particular with regard to the hazard potential caused by the preload arrangement, is improved.

[0007] The above problem is solved by the features of the characterizing part of claim 1.

[0008] The fundamental principle is that the preloading of the connections relative to each other is achieved, at least partially, by a torsion spring in the preloading assembly. The torsion spring preloads the spindle nut tube and the spindle nut in a rotational direction, which ultimately results in the axial preloading of the connections relative to each other. Compared to a compression spring, as used in the adjustment arrangement known from the prior art, the potential hazard posed by a torsion spring is reduced due to its different direction of action. In the event of a defect or damage, this prevents the torsion spring and / or other components of the adjustment arrangement from flying out uncontrollably.

[0009] Specifically, it is proposed that the preload arrangement includes a torsion spring and that the torsion spring preloads the spindle nut tube with the spindle nut in one direction of rotation.

[0010] According to claim 2, it can be advantageously provided that the adjusting arrangement is adjustable to a retracted state and an extended state, and that the connections are pre-tensioned by the preloading arrangement, in particular by the torsion spring, either in the direction of the retracted state or in the direction of the extended state. Depending on the embodiment, the adjusting arrangement can thus be used both in motor vehicles where, during the opening process of the locking element, the adjusting arrangement is moved to the retracted state, and in motor vehicles where, during the opening process of the locking element, the adjusting arrangement is moved to the extended state.

[0011] A particularly advantageous embodiment according to claim 3 provides that the preloading arrangement preloads the connections relative to each other in both the retracted and extended states, thus exerting a respective preload force in both states. This allows different functions of the adjusting arrangement to be realized. For example, starting from one of the states, particularly the retracted state, the opening process of the locking element can first be effected and / or assisted by the adjusting arrangement, and in the other of the states, particularly the extended state, the locking element can be held in the open position by the adjusting arrangement.Provided that the preload arrangement is designed in such a way that the resulting preload force is sufficiently large to hold the locking element in the open position, additional components, such as a holding brake, can be dispensed with.

[0012] Claim 4 relates to an advantageous embodiment that further improves operational reliability. A bearing arrangement with two axially spaced bearing points can enable the adjustment mechanism to absorb larger support forces, thereby improving the overall support characteristics of the adjustment mechanism. The bearing arrangement can be designed with two bearing elements in a structurally simple yet functional manner. To further improve the support characteristics of the adjustment mechanism and thus its operational reliability, one or both of the bearing elements can be designed to absorb radial forces that may act on the bearing elements originating from the spindle nut tube.

[0013] Claim 5 relates to an advantageous embodiment in which one of the bearing elements performs several functions, for example, to keep the number of components of the adjustment arrangement comparatively low. Thus, in addition to supporting the spindle nut tube, one of the bearing elements can also act as a seal, for example, for a housing chamber arranged within the first housing part, and / or provide damping, for example, for the rotatable spindle nut tube. The torsion spring can advantageously be arranged within the housing chamber in a protected manner to reduce its risk of failure (e.g., due to contamination, moisture, or aging) and thereby increase the overall operational reliability of the adjustment arrangement.

[0014] Claims 6 to 11 are directed to advantageous embodiments of the adjustment arrangement which relate to the torsion spring with regard to its design and arrangement.

[0015] An advantageous embodiment according to claim 6 provides that the torsion spring has two spring connections. These spring connections allow the torsion spring to be connected to the first housing part and the spindle nut tube in a structurally simple and equally functional manner.

[0016] According to claim 7, the adjusting arrangement advantageously includes an intermediate gear through which the torsion spring is connected to the first housing part or the spindle nut tube. The intermediate gear allows the rotary motion of the spindle nut tube to be converted into the rotary motion that tensions or relaxes the torsion spring. In particular, the intermediate gear can be designed such that the rotational speed of the spindle nut tube is reduced by the intermediate gear towards the torsion spring.

[0017] According to claim 8, the spring connections are advantageously arranged on opposite sides or on the same side of the torsion spring. This allows for improved use of installation space, particularly with regard to the arrangement of the torsion spring. It is also conceivable that by arranging the spring connections on the same side of the torsion spring, the torsion spring can be designed as a duplex spring, thereby achieving improved preload forces.

[0018] Another advantageous embodiment according to claim 9 provides for a positive-locking connection of one or both spring connections to the first housing part or the spindle nut tube, which is easy to implement in terms of design and is equally functionally reliable.

[0019] Claim 10 relates to an advantageous embodiment in which the torsion spring can be supported via the spindle nut tube and / or via the first housing part, thereby preventing any buckling or misalignment of the torsion spring.

[0020] Claim 11 relates to an advantageous embodiment of the adjustment arrangement with a structurally simple and equally functionally reliable torsion spring.

[0021] A further advantageous embodiment according to claim 12 provides that the preload arrangement includes an additional torsion spring which, in addition to the torsion spring, preloads the spindle nut tube and the spindle nut in the direction of rotation. The torsion spring and the additional torsion spring can together form a type of spring system whose preload force can be designed in an improved manner. Furthermore, it is conceivable that the additional torsion spring can provide a degree of redundancy.

[0022] Claim 13 relates to a further advantageous embodiment concerning the preload arrangement. Alternatively or additionally to the torsion spring and, optionally, the further torsion spring, one or more preload elements, for example one or more compression springs, can be provided. It is conceivable that the preload element(s) further improve the adjustment by the adjustment arrangement, in particular by initially supporting the opening movement from the retracted state with an additionally applied preload force.

[0023] According to a further teaching according to claim 14, which has independent significance, a locking element arrangement with a locking element and an adjustment arrangement according to one of the preceding claims is claimed.

[0024] Reference may be made to all explanations regarding the proposed adjustment arrangement.

[0025] The invention will now be explained in more detail with reference to a drawing that merely illustrates exemplary embodiments. The drawing shows Fig. 1 a proposed adjustment arrangement in a) an active design which is assigned to a motor vehicle, and in b) a passive design in each a cutaway side view, Fig. 2 the proposed adjustment arrangement according to Fig. 1a) in a) a retracted state with enlarged, partially sectioned detail views and in b) an extended state in sectioned side views, Fig. 3. A further active embodiment of the proposed adjustment arrangement in the retracted state in a cut side view with an enlarged, partially cut detail view as well as a cross-sectional view and Fig. 4 in a) to d) each different versions of a torsion spring for the proposed adjustment arrangement.

[0026] In the Fig. 1a), Fig. 2a) and Fig. Figure 2b) shows a preferred embodiment of an adjustment arrangement 1 for a locking element 2 of a motor vehicle 3 with a body 4. Fig. 1a) The adjustment arrangement 1 (as well as the locking element 2) is assigned to a proposed locking element arrangement 5, which will be discussed in more detail below. As already described in the introduction, the term "locking element" is to be interpreted broadly. Here, and preferably, the locking element 2 is designed as a tailgate. Here, and preferably, the adjustment arrangement 1 is designed as a spindle drive. In the Fig. 1b) and Fig. Figure 3 shows a further preferred embodiment of the adjustment arrangement 1.

[0027] The in the Fig. 1a), Fig. 2a) and Fig. 2b) as shown, as well as those in the Fig. The adjustment arrangement 1 shown in Figure 3 is preferably actively designed. This means that the locking element 2 can be automatically adjusted into an open position and / or a closed position by means of the adjustment arrangement 1. The adjustment arrangement shown in Figure 3 is preferably actively designed. Fig. 1b) The adjustment arrangement 1 shown is preferably passively designed. This means that the adjustment arrangement 1 is designed without a drive motor. This adjustment arrangement 1 can assist the adjustment of the locking element 2, which is effected, for example, manually or by another actively designed adjustment arrangement 1, for instance by braking and / or assisting the movement. It is also possible for this adjustment arrangement 1 to enable or assist holding the locking element 2 in the open position.

[0028] In general, the exemplary embodiments of the adjustment arrangement 1 are shown in the Fig. 1a), Fig. 2a), Fig. 2b) and Fig. 3 and 1b) are largely identical in construction, which is why the following explanations (unless otherwise stated) generally refer to both the actively and passively designed adjustment arrangements 1.

[0029] In general, the adjustment arrangement 1 can be adjusted to an extended and a retracted position. The adjustment arrangement 1 has two housing parts 6, 7 that can be extended relative to each other, namely a first housing part 6 and a second housing part 7. "Telescopic" in this context means that the housing parts 6, 7 extend into each other in the manner of a telescope ( Fig. 2a)) and apart ( Fig. 2b)) can be moved, thereby allowing the adjustment arrangement 1 to be adjusted into the retracted and extended positions. The housing parts 6, 7 can, as shown here, form a housing in which at least some of the components of the adjustment arrangement 1 are protected from external influences.

[0030] Each of the housing parts 6, 7 has a connection 8. The connections 8 can each be encompassed by one of the housing parts 6, 7. The adjustment arrangement 1 can be connected to the locking element 2 via one of the connections 8, and the adjustment arrangement 1 can be connected to the body 4 of the motor vehicle 3 via the other of the connections 8. Fig. 1a)). Here, and preferably, the connections 8 are spaced apart from each other in the extended state of the adjustment arrangement 1 such that the locking element 2 can be adjusted or moved into an open position ( Fig. 1a)), in the retracted state of the adjustment arrangement 1, the connections 8 are spaced apart such that the locking element 2 can be adjusted or moved into a closed position, in which, for example, the tailgate closes a trunk. The connections 8 move along with the housing parts 6 and 7 when they are telescoping. Alternatively, it is also conceivable that in the extended state, the connections 8 are spaced apart such that the locking element 2 is moved into the closed position. In the retracted state, the connections 8 are then spaced apart such that the locking element 2 is moved into the open position. This can be achieved, for example, using a lever arrangement.

[0031] The adjusting arrangement 1 further comprises a spindle 9, a spindle nut tube 10, and a spindle nut 11 arranged on the spindle nut tube 10. The spindle nut 11 is fixedly mounted to the spindle nut tube 10. This can be achieved, for example, by clamping, gluing, welding, and / or screwing the spindle nut 11 to the spindle nut tube 10. It is also possible for the spindle nut 11 to be integrally formed with the spindle nut tube 10. The spindle nut tube 10 is rotatably mounted, indirectly or directly, on the first housing part 6. Fig. 2a)). The spindle nut tube 10 can be rotated relative to the first housing part 6. Preferably, the spindle nut tube 10 is arranged in the first housing part 6. The spindle 9 is fixedly, in particular rotationally fixed, indirectly or directly, to the second housing part 7 ( Fig. 2a)). Preferably, the spindle 9 is arranged in the second housing part 7.

[0032] The spindle 9 and the spindle nut 11 are engaged with each other via a threaded connection 12 such that the spindle nut 11 is moved along the spindle 9 during a rotational movement of the spindle nut tube 10. Here, and preferably, the spindle 9 has an external thread and the spindle nut 11 has an internal thread, which form the threaded connection 12. The spindle nut 11 can be moved along the spindle 9, particularly in the axial direction, especially with respect to the longitudinal axis of the spindle 9. To ensure that the spindle nut 11 can be moved stably along the spindle 9, it is preferably provided that the external thread of the spindle 9 is longer than the internal thread of the spindle nut 11. This can also offer manufacturing advantages. Preferably, the ratio of the length of the external thread to the length of the internal thread is at least 2:1, more preferably 3:1, more preferably 5:1, and more preferably 10:1.The spindle 9 can, as shown here, have a section without a thread in addition to the section with the external thread.

[0033] The movement of the spindle nut 11 along the spindle 9 causes the housing parts 6, 7, particularly those with connections 8, to telescope relative to each other. Depending on the rotational movement of the spindle nut tube 10, the housing parts 6, 7 can be moved either inwards or apart. This allows the adjustment mechanism 1 to be moved between its retracted and extended positions.

[0034] The adjustment arrangement 1 further comprises a preloading arrangement 13 for preloading the connections 8 and / or housing parts 6, 7 relative to each other. The preloading of the connections 8 and / or housing parts 6, 7 relative to each other is carried out in the axial direction, in particular with respect to the longitudinal axis of the housing parts 6, 7.

[0035] It is essential that the preload arrangement 13 has a torsion spring 14 and that the torsion spring 14 preloads the spindle nut tube 10 with the spindle nut 11 in a direction of rotation, in particular relative to the first housing part 6.

[0036] The term "torsion spring" is to be understood broadly here and encompasses spring elements that can store energy when twisted, such as a torsion bar or a helical spring. During twisting, one part of the torsion spring 14, for example a spring connection 24, 25, is rotated relative to another part of the torsion spring 14, for example another spring connection 24, 25.

[0037] The torsion spring 14 exerts a torque on the spindle nut tube 10 in the direction of rotation. When the adjusting arrangement 1 is moved, for example from the retracted state to the extended state, the spindle nut tube 10 rotates with the spindle nut 11. This can be done manually and / or automatically. If the rotational movement of the spindle nut tube 10 with the spindle nut 11 occurs in the direction of rotation, the rotational movement can be caused or at least assisted by the torque exerted by the torsion spring 14.

[0038] The torsion spring 14 can at least partially relax in this process. If the rotational movement of the spindle nut tube 10 with the spindle nut 11 occurs in the opposite direction of rotation, the rotational movement can be slowed by the torque. The torsion spring 14 can at least partially tighten in this process.

[0039] As mentioned above, it is preferably provided that the adjustment arrangement 1 is adjustable to a retracted state and to an extended state. This can be done automatically, for example according to the Fig. 1a), Fig. 2a), Fig. 2b) and Fig. 3 by a drive motor 15, described later, and / or manually, for example by a user. The connections 8 and / or the housing parts 6, 7 are pre-tensioned by the pre-tensioning arrangement 13 in the direction of the retracted state or, here and preferably, in the direction of the extended state. The connections 8 and / or the housing parts 6, 7 are pre-tensioned relative to each other, in particular in the axial direction. The pre-tensioning by the pre-tensioning arrangement 13 is preferably achieved at least partially by the torsion spring 14 pre-tensioning the spindle nut tube 10 in the corresponding direction of rotation.

[0040] According to Fig. 1a) and preferably the connections 8 and the housing parts 6, 7 are pre-tensioned in the direction of the extended state by the pre-tensioning arrangement 13. This makes it possible to effect and / or assist the adjustment of the locking element 2 from the closed position towards the open position by the adjustment arrangement 1. It is also possible for the locking element 2 to be held in the open position by the adjustment arrangement 1, as shown in Fig. 1a).

[0041] In this context, it is preferably provided that the preload arrangement 13 preloads the connections 8 relative to each other with a respective preload force in both the retracted and extended states. The preload arrangement 13 can therefore always exert a preload force. In particular, the torsion spring 14 can exert at least a portion of the respective preload force in both the retracted and extended states, for example, by preloading the spindle nut tube 10 in the direction of rotation in both the retracted and extended states. Here, and preferably, it is provided that the preload force exerted by the preload arrangement 13 in the retracted state exceeds the preload force exerted by the preload arrangement 13 in the extended state.

[0042] With regard to the mounting of the spindle nut tube 10, it has proven particularly advantageous if the adjustment arrangement 1 includes a bearing arrangement 16, and the bearing arrangement 16 rotatably mounts the spindle nut tube 10 at two axially spaced bearing points 17 on the first housing part 6. The spacing of the bearing points 17 allows the spindle nut tube 10 to be mounted relatively stably, thereby optimizing the support characteristics of the adjustment arrangement 1 and thus its overall operational reliability. The bearing arrangement 16 can, in particular, be designed such that the spindle nut tube 10 is mounted at two opposite tube ends.

[0043] The spindle nut tube 10 can preferably be supported circumferentially and / or radially with respect to the longitudinal axis of the spindle nut tube 10 at the bearing points 17. Alternatively or additionally, one of the bearing points 17, in particular the one facing away from the second housing part 7, preferably exclusively, can be arranged in the first housing part 6, and the other of the bearing points 17, in particular the one facing towards the second housing part 7, can be arranged in the first housing part 6 and in the second housing part 7.

[0044] The bearing arrangement 16 preferably comprises two bearing elements 18, each of which supports the spindle nut tube 10 at one of the bearing points 17. The torsion spring 14 is preferably arranged axially with respect to the longitudinal axis of the torsion spring 14 between the bearing points 17 and / or the bearing elements 18. The bearing elements 18 are preferably each arranged on a cylindrical surface of the spindle nut tube 10, as can be seen, for example, from the Fig. 2a) and Fig. 2b) and 3. The bearing elements 18 are preferably arranged, alternatively or additionally, each directly on the first housing part 6. Most preferably, the bearing elements 18 are arranged circumferentially around the spindle nut tube 10.

[0045] Preferably, one of the bearing elements 18 is designed as a radially supporting bearing element 18, or the bearing elements 18 are each designed as a radially supporting bearing element 18. In this context, the term "radially supporting bearing element" particularly includes bearings that can primarily absorb forces in the radial direction (relative to the longitudinal axis of the spindle nut tube 10), i.e., for example, radial bearings. It is fundamentally possible, and not excluded, that radially supporting bearing elements 18 can also absorb forces in the axial direction; however, these forces are comparatively small compared to the forces that can be absorbed in the radial direction.

[0046] The bearing elements 18 are preferably designed as sliding bearing elements and / or as rolling bearing elements. According to Fig. 2a) For example, the upper bearing element 18 in the figure is designed as a radially bearing rolling bearing element, and the lower bearing element 18 in the figure is designed as a radially bearing sliding bearing element. Alternative configurations are conceivable. If one or both of the bearing elements 18 are designed as sliding bearing elements, the sliding bearing element(s) can each have a sliding surface. The sliding surface(s) can each face the spindle nut tube 10, in particular bearing in a sliding manner against one or the outer surface of the spindle nut tube 10. It is conceivable that the sliding bearing element(s) is / are each formed in one piece.

[0047] As described above, the spindle 9 and the spindle nut 11 are engaged with each other via the threaded connection 12, allowing at least a certain portion of forces, such as support forces, to be transferred from the spindle 9 to the spindle nut 11 and vice versa. To further improve the support characteristics of the adjustment arrangement 1, it is preferably provided, with regard to the connection between the spindle 9 and the spindle nut 11, that the adjustment arrangement 1 has a support element 19, which is distinct from the spindle nut 11. The support element 19 supports the spindle 9 against the spindle nut tube 10, particularly in the radial direction with respect to the longitudinal axis of the spindle 9. It is preferably provided that the support element 19 is arranged on the spindle 9, particularly at a spindle end without threads.This allows the support element 19 to be movable relative to the spindle nut tube 10, so that the support element 19 can support the spindle 9 in the retracted state (. Fig. 2a)) and in the extended state ( Fig. 2b)) can be done.

[0048] In general, the torsion spring 14 can be arranged radially between the spindle nut tube 10 and the first housing part 6, particularly in a housing chamber 20. In this context, it is particularly preferred that the bearing arrangement 16, especially one of the bearing elements 18, is designed and arranged on the first housing part 6 such that a housing chamber 20 is formed in the first housing part 6. The housing chamber 20 is spatially separated from the second housing part 7 by the bearing arrangement 16, especially by one of the bearing elements 18. This can be seen, for example, from the Fig. 2a), Fig. 2b) and Fig. 3. One of the bearing elements 18 can in this case be, in particular, the bearing element 18 which faces the second housing part 7.

[0049] In the event that one of the bearing elements 18 (in the Fig. 2a), Fig. 2b) If the lower of the bearing elements 18) spatially separates the housing chamber 20 from the second housing part 7, the bearing element 18 can, in addition to supporting the spindle nut tube 10, also provide a seal, for example against moisture, for the housing chamber 20, and / or damping, for example of the spindle nut tube 10. One of the bearing elements 18 can thus be used as a multifunctional component. It is conceivable that one of the bearing elements 18 comprises a plastic material.

[0050] With regard to the Fig. 2a), Fig. 2b), Fig. 3 and preferably the housing chamber 20 has a constant length. This means that the length of the housing chamber 20 does not change when the adjusting arrangement 1 is moved from the retracted state to the extended state and vice versa. The housing chamber 20 can be arranged at least partially, and in particular completely, within the first housing part 6. The housing chamber 20 can be bounded by the first housing part 6, the spindle nut tube 10, and the bearing arrangement 16, in particular by one of the bearing elements 18. The housing chamber 20 can generally be arranged radially with respect to the longitudinal axis of the spindle nut tube 10 between the spindle nut tube 10 and the first housing part 6. It is possible that one of the bearing elements 18 is arranged on the first housing part 6, in particular at one end of the first housing part 6, in the manner of a sealing plug.One of the bearing elements 18 can have a collar section 21 and / or a sleeve section 22 (. Fig. 2a) and Fig. 3).

[0051] With regard to the torsion spring 14, it is particularly preferred in connection with the housing chamber 20 that the torsion spring 14 is arranged within the housing chamber 20, as can be seen, for example, from the Fig. 2a), Fig. 2b) is evident. This means that the preloading element 23 is received in the housing chamber 20 by the first housing part 6 and is well protected from external influences.

[0052] Although the design of the torsion spring 14 is generally not limited to specific configurations, it is particularly preferred that the torsion spring 14 has two spring connections 24, 25, namely a first spring connection 24 and a second spring connection 25, which are located approximately in the Fig. 4a) to 4d). The first spring connection 24 is connected to the spindle nut tube 10, in particular in a rotationally fixed manner. This can be done directly or indirectly. According to Fig. 2a) The first spring connection 24 is, by way of example, directly connected to the spindle nut tube 10. According to Fig. 3 The first spring connection 24 is, by way of example, indirectly connected to the spindle nut tube 10 via an intermediate gear 26, which will be described below. The second spring connection 25 is connected to the first housing part 6, in particular in a rotationally fixed manner. This connection can also be made directly or indirectly.

[0053] For example, with regard to Fig. 2a) and preferably the second spring connection 25 is connected to the first housing part 6 indirectly via one of the bearing elements 18. The bearing element 18 is in particular the bearing element 18 that faces the second housing part 7. The bearing element 18 is rotationally fixed relative to the first housing part 6, so that the second spring connection 25 is also rotationally fixed relative to the first housing part 6.

[0054] Also with a view to Fig. 2a) and alternatively or additionally, the spindle nut tube 10 preferably has a connection section 27 via which the first spring connection 24 is connected to the spindle nut tube 10. The connection section 27 is, here and preferably, otherwise integrally formed on the spindle nut tube 10.

[0055] As mentioned above, the adjusting arrangement 1 preferably has an intermediate gear 26. The torsion spring 14, in particular the first spring connection 24, can be connected to the spindle nut tube 10 indirectly via the intermediate gear 26, as is the case, for example, according to Fig. 3 is provided. Alternatively, it is also conceivable that the torsion spring 14, in particular the second spring connection 25, is connected to the first housing part 6 via the intermediate gear 26. In general, the intermediate gear 26 can effect a reduction in the rotational speed of a rotary movement of the torsion spring 14, in which the spring connections 24, 25 are rotated relative to each other, compared to a rotary movement of the spindle nut tube 10, which occurs during the adjustment of the adjusting arrangement 1 between the retracted and extended states.

[0056] With regard to the cross-sectional view in Fig. 3 and preferably the intermediate gear 26 is designed as a planetary gear. The intermediate gear 26 preferably has a ring gear 28, several planets 29, a planet carrier 30 and a sun gear 31. The torsion spring 14, in particular (as here) the first spring connection 24 or the second spring connection 25, is connected to the planet carrier 30. The spindle nut tube 10 and the planet carrier 30 with the first spring connection 24 or the second spring connection 25 are mechanically coupled to each other. A rotational movement of the spindle nut tube 10, for example during the adjustment of the adjustment arrangement 1 between the retracted state and the extended state, causes a rotational movement of the planet carrier 30 and ultimately a rotational movement of the first spring connection 24 or the second spring connection 25.The torsion spring 14 can cause, support and / or brake the rotational movement of the spindle nut tube 10, and conversely, the rotational movement of the spindle nut tube 10 can preload or release the torsion spring 14 depending on the direction of rotation.

[0057] The ring gear 28 is preferably arranged on the first housing part 6, and / or the sun gear 31 is preferably arranged on the spindle nut tube 10. It is possible that the ring gear 28, as in Fig. Figure 3 shows the sun gear 31 being integrally formed with the first housing part 6. It is also possible that the sun gear 31, as shown here, is integrally formed with the spindle nut tube 10.

[0058] Here, and preferably, the intermediate gear 26 is arranged axially between the bearing elements 18 of the spindle nut tube 10. However, it is also conceivable that the intermediate gear 26 forms one of the bearing elements 18, for example, the bearing element 18 facing away from the second housing part 7. In this case, the bearing of the spindle nut tube 10 can be at least partially provided by the intermediate gear 26.

[0059] Regarding the design of the torsion spring 14, it is further preferably provided that the spring connections 24, 25 are arranged on opposite sides of the torsion spring 14 with respect to the axial direction, as can be seen in particular from the Fig. 4a), Fig. 4b) and Fig. 4c). This also applies to the embodiments described in the Fig. 1a) to 3, such a configuration of the torsion spring 14 is provided. Alternatively, it is also conceivable that the spring connections 24, 25 are arranged on the same side of the torsion spring 14 with respect to the axial direction, as is the case, for example, with Fig. 4d) shows that the spring connections 24, 25 are arranged on the “lower” side of the torsion spring 14. Here, and preferably, the torsion spring 14 is designed as a duplex spring.

[0060] With regard to the connection of the torsion spring 14, it is particularly preferred that the torsion spring 14 is positively connected to the spindle nut tube 10 or the first housing part 6 via the first spring connection 24 and / or via the second spring connection 25. This is possible in various ways. For example, with regard to Fig. 2a) It is conceivable that the first spring connection 24 and the spindle nut tube 10 are positively connected to each other by the first spring connection 24 engaging in a connection recess of the connection section 27 in a rotationally fixed manner. With regard to Fig. 3. It is also possible that the first spring connection 24 and the spindle nut tube 10 are positively connected to each other by the first spring connection 24 engaging in a connection recess of the planet carrier 30 in a rotationally fixed manner. Regarding the second spring connection 25 and with regard to Fig. 2a) it is conceivable that the second spring connection 25 and the first housing part 6 are positively connected to each other by the second spring connection 25 engaging in a connection recess of one of the bearing elements 18, in particular the bearing element 18 facing the second housing part 7, in a rotationally fixed manner.

[0061] Preferably, the torsion spring 14 has a torsion section 32 which is arranged between the first spring connection 24 and the second spring connection 25. The first spring connection 24 and the second spring connection 25 are arranged on the torsion section 32, in particular integrally formed with it, as is the case, for example, with the torsion springs 14 of the Fig. 4a) to 4d) is the case. It is possible that the first spring connection 24 and / or the second spring connection 25 are oriented substantially in the axial direction with respect to the longitudinal axis of the torsion spring 14 ( Fig. 4c)) and / or oriented substantially in a radial direction ( Fig. 4a), Fig. 4b), Fig. 4d)) is / are arranged on the torsion section 32. The first spring connection 24 and / or the second spring connection 25 can / can each extend radially inwards and / or outwards from the torsion section 32 in relation to the longitudinal axis of the torsion spring 14.

[0062] Regardless of how the torsion spring 14 is connected, it has proven particularly advantageous if the torsion spring 14 can be supported via the spindle nut tube 10 in the manner of a guide mandrel. For this purpose, the torsion spring 14 is arranged at least partially around the spindle nut tube 10, as can be seen, for example, from the Fig. 2a), Fig. 2b) and Fig. 3. It is possible that the torsion spring 14 can be supported by the spindle nut tube 10 in both the retracted and extended states. It is possible that the torsion spring 14 can be supported over most of its length, preferably over at least 80% of its length, and preferably at least 90% of its length.

[0063] Alternatively or additionally, it can preferably be provided that the torsion spring 14 can be supported by the first housing part 6 in the manner of a guide sleeve. For this purpose, the torsion spring 14 is arranged at least partially in the first housing part 6, in particular in the housing chamber 20, as can be seen, for example, from the Fig. 2a), Fig. 2b) is evident. It is possible that the torsion spring 14 can be supported by the first housing part 6 in both the retracted and extended states. It is possible that the torsion spring 14 can be supported over most of its length, preferably over at least 80% of its length, and preferably at least 90% of its length.

[0064] Preferably, the torsion spring 14 can be supported, or is supported, by the spindle nut tube 10 in the retracted state and by the first housing part 6 in the extended state. Alternatively, the torsion spring 14 can be supported, or is supported, by the spindle nut tube 10 in the extended state and by the first housing part 6 in the retracted state.

[0065] Although the term “torsion spring”, as explained above, is to be understood broadly, it has proven particularly advantageous if the torsion spring 14 is designed as a helical spring, as shown in the figures. The torsion spring 14 preferably has a wire body 33 ( Fig. 4a) to 4d)). Here, and preferably, it is provided that the wire body 33 forms the torsion section 32 and / or the first spring connection 24 and / or the second spring connection 25. It is preferably provided that the wire body 33 has a substantially constant pitch in the region of the torsion section 32. The wire body 33 may, in particular, be rolled. The wire body 33 may have a round ( Fig. 4b)), in particular circular ( Fig. 4a), Fig. 4c), 4d)) or oval, or polygonal, in particular square, wire cross-section 34. Other configurations of the wire cross-section 34 are also conceivable. It is particularly preferred that the wire cross-section 34 is flat-rolled. This means that, during manufacturing, a round wire cross-section 34 is flat-rolled, as is the case, for example, with Fig. 4b).

[0066] It is preferably possible that the preload arrangement 13 includes a further torsion spring 35 and that the torsion spring 14, together with the further torsion spring 35, preloads the spindle nut tube 10 with the spindle nut 11 in the direction of rotation. The further torsion spring 35 can have one or more of the features described in connection with the torsion spring 14. It is preferably provided that the torsion spring 14 and the further torsion spring 35 are arranged next to each other and / or coaxially in the radial direction, particularly with respect to the longitudinal axis of the spindle nut tube 10. A spring system preferably formed by the torsion spring 14 and the further torsion spring 35 is shown by way of example in Fig. 4c) shown. The torsion spring 14 and the further torsion spring 35 can together form a kind of double spring and in particular be inseparably connected to each other and / or arranged coaxially to each other.

[0067] With regard to the preload arrangement 13, it is possible that the preload arrangement 13 comprises, in addition to the torsion spring 14 and, if applicable, the further torsion spring 35, further preload components. It is preferably provided that the preload arrangement 13 has a preload element 23 which preloads the spindle 9 in its axial direction, in particular relative to the first housing part 6. This can be done indirectly, as here, for example via the support element 19, or directly. The preload element 23 is designed differently from the torsion spring 14 and, if present, from the further torsion spring 35. The preload element 23 can, in particular, be a mechanical preload element 23. With regard to the Fig. 2a), Fig. 2b) and preferably the preload element 23 is arranged in the spindle nut tube 10. The preload element 23 can be designed as a compression spring, as shown here.

[0068] It is particularly preferred that the preloading element 23 preloads the spindle 9 only section by section, especially relative to the first housing part 6, starting from the retracted state of the adjustment arrangement 1. "Section by section" in this context means that in an initial movement section starting from the retracted state, the spindle 9 is preloaded by the preloading element 23, and in a subsequent movement section towards the extended state, the spindle 9 is no longer preloaded by the preloading element 23. This is evident from a comprehensive view of the Fig. 2a) and Fig. 2b) is evident. This makes it possible, for example, that starting from the retracted state of the adjustment arrangement 1, the adjustment in the direction of the extended state initially requires a comparatively small actuating force, which is to be applied, for example, by a user or a drive arrangement 36 with drive motor 15 described below.

[0069] In general, the preloading element 23 can be arranged axially fixed relative to the first housing part 6, for example on the spindle nut tube 10 and / or a coupling element 37 described below. It is possible that the preloading element 23 is in contact with the spindle 9 and / or the support element 19 when the adjusting arrangement 1 is retracted and out of contact when the adjusting arrangement 1 is extended. Alternatively, it is also conceivable that the preloading element 23 is movable with the spindle 9, for example by arranging the preloading element 23 on the spindle 9 and / or the support element 19. In this case, it is possible that the preloading element 23 is in contact with the spindle nut tube 10 and / or the coupling element 37 when the adjusting arrangement 1 is retracted and out of contact when the adjusting arrangement 1 is extended.

[0070] Alternatively or additionally to the preloading element 23, the preloading arrangement 13 may have a further preloading element 38, which preloads the housing parts 6, 7 and / or the connections 8 relative to each other in the axial direction. The preloading element 23 is designed differently from the torsion spring 14 and, if present, from the further torsion spring 35. The axial direction in this context refers to the longitudinal axis of the spindle nut tube 10, the spindle 9 and / or the first housing part 6 and / or the second housing part 7. It is important to note that Fig. 2a) preferably, the further preloading element 38 supports the first housing part 6 via one of the bearing points 17, in particular via one of the bearing elements 18. The further preloading element 38 can in particular be a mechanical further preloading element 38. With regard to the Fig. 2a), Fig. 2b) and preferably the further preloading element 38 is arranged in the second housing part 7. The further preloading element 38 can be designed as a compression spring.

[0071] It is particularly preferred that the additional preloading element 38 preloads the housing parts 6, 7 only section by section, starting from the retracted state of the adjusting arrangement 1. "Section by section" in this context means that in an initial movement section starting from the retracted state, the housing parts 6, 7 are preloaded by the additional preloading element 38, and in a subsequent movement section towards the extended state, the housing parts 6, 7 are no longer preloaded by the additional preloading element 38. This is evident from a comprehensive view of the Fig. 2a) and Fig. 2b) is evident. This makes it possible, for example, that starting from the retracted state of the adjustment arrangement 1, adjusting it towards the extended state initially requires a comparatively small actuating force.

[0072] In general, the additional preloading element 38 can be arranged axially fixed relative to the first housing part 6, as shown here. The additional preloading element 38 can be arranged, for example, at one of the bearing points 17, in particular at one of the bearing elements 18. It is possible that the additional preloading element 38 is in contact with the second housing part 7 when the adjustment arrangement 1 is retracted and is out of contact when the adjustment arrangement 1 is extended. Alternatively, the additional preloading element 38 can also be arranged axially fixed relative to the second housing part 7. The additional preloading element 38 can be movable with the second housing part 7, for example, by being arranged on the second housing part 7.In this case, it is possible that the further preloading element 38 is in contact with the first housing part 6 and / or with one of the bearing elements 18 when the adjustment arrangement 1 is in the retracted state and is out of contact when the adjustment arrangement 1 is extended.

[0073] It has already been described above in another context that the adjustment arrangement 1 is basically active ( Fig. 1a), Fig. 2a), Fig. 2b) and Fig. 3) or passive ( Fig. 1b)) can be designed. In connection with the active design, it is possible that the adjusting arrangement 1 has a drive arrangement 36 with a drive motor 15, in particular an electric one, and that the drive arrangement 36 can effect the rotary movement of the spindle nut tube 10. The drive arrangement 36 can enable automatic adjustment of the locking element 2 to the open position and / or the closed position by the adjusting arrangement 1. The drive motor 15 is arranged here, and preferably in the first housing part 6 (as can be seen, for example, from Fig. 1a) emerges).

[0074] Here, and preferably, the drive arrangement 36 and the spindle nut tube 10 are coupled to each other via a flexible coupling element 37. The coupling element 37 has already been mentioned above in another context. The coupling element 37 can be arranged between the drive motor 15 and the spindle nut tube 10 (as shown, for example, in the following). Fig. 2a) and Fig. (as can be seen in Figure 3). "Flexible" in the context of the coupling element 37 means that a certain offset between the drive assembly 36 and the spindle nut tube 10 can be compensated for by the coupling element 37. For example, a certain axial offset, a certain angular offset, and / or a certain radial offset can be compensated for. For this purpose, the coupling element 37 may comprise a plastic, in particular an elastomer. The coupling element 37 can also have a sealing and / or damping effect.

[0075] In connection with the passive design ( Fig. 1b)) it is possible that the adjusting arrangement 1 is designed without a drive motor. It is conceivable that the passively designed adjusting arrangement 1 also has a coupling element 37, which here, however, serves, for example, to support the preloading element 23 ( Fig. 1b)) and does not necessarily have to cause a coupling.

[0076] In connection with the drive arrangement 36, it has proven advantageous for the drive arrangement 36 to include a control arrangement 39. The control arrangement 39 can enable the control of the drive motor 15. The control arrangement 39 can be located at least partially, and in particular completely, in one of the housing parts 6, 7, especially in the first housing part 6. It is also conceivable that the control arrangement 39 is located on the body 4 of the motor vehicle 3 ( Fig. 1a)).

[0077] Alternatively or additionally, the drive arrangement 36 preferably includes a drive gearbox 40. The drive gearbox 40 can translate a drive movement of the drive motor 15 into the rotary movement of the spindle nut tube 10. The drive gearbox 40 is preferably arranged between the drive motor 15 and the spindle nut tube 10. Here, and preferably, the drive gearbox 40 is arranged at least partially, and in particular completely, in one of the housing parts 6, 7, especially in the first housing part 6.

[0078] Furthermore, alternatively or additionally, the drive arrangement 36 preferably includes a coupling 41. The coupling 41 is arranged between the drive motor 15 and the spindle nut tube 10. Here, and preferably, the coupling 41 is arranged at least partially, and in particular completely, in one of the housing parts 6, 7, especially in the first housing part 6. As required, the coupling 41 couples the drive motor 15 and the spindle nut tube 10 to each other or decouples the drive motor 15 and the spindle nut tube 10 from each other. For example, it is conceivable that the coupling 41 provides pinch protection, for instance by decoupling the drive motor 15 and the spindle nut tube 10 from each other if a user is at risk of being pinched between the locking element 2 and the body 4.It is also conceivable that the coupling 41 provides overload protection for the drive motor 15, for example, if the locking element 2 is manually adjusted against the drive motor 15. The coupling 41 can be designed, for example, as a jaw coupling or as a slip coupling, particularly with a tolerance ring.

[0079] Alternatively or additionally, the drive arrangement 36 includes a brake 42. The brake 42 is arranged between the drive motor 15 and the spindle nut tube 10 and can brake the rotational movement of the spindle nut tube 10. This can assist or ensure that the locking element 2 is held in a position, for example, the open position, and / or prevent the adjustment arrangement 1 and thus the locking element 2 from moving too quickly. Here, and preferably, the brake 42 is arranged at least partially, and in particular completely, in one of the housing parts 6, 7, especially in the first housing part 6.

[0080] Furthermore, alternatively or additionally, the drive arrangement 36 preferably has an output shaft 43. The output shaft 43 is connected to the spindle nut tube 10 in a drive-related manner, in particular such that a rotational movement of the output shaft 43 causes the rotational movement of the spindle nut tube 10. The output shaft 43 can be arranged substantially coaxially to the longitudinal axis of the spindle nut tube 10. It is possible that the coupling element 37 is arranged on the output shaft 43. Here, and preferably, the output shaft 43 is arranged at least partially, and in particular completely, in one of the housing parts 6, 7, especially in the first housing part 6.

[0081] The adjustment arrangement 1 preferably includes an anti-rotation device 44. The housing parts 6, 7 are secured against rotation relative to each other by the anti-rotation device 44. This prevents the housing parts 6, 7 from rotating relative to each other, while still allowing axial movement and, in particular, telescoping of the housing parts 6, 7 relative to each other.

[0082] The anti-rotation device 44 can preferably prevent the housing parts 6, 7 from rotating relative to each other by means of a positive locking mechanism. Rotation of the housing parts 6, 7 relative to each other is thus prevented by this positive locking. The anti-rotation device 44 can, in principle, be implemented using a torsion tube. However, with regard to a reduced number of components, it has proven particularly advantageous if the anti-rotation device 44 is designed as part of the housing parts 6, 7. In this case, the positive locking mechanism can exist between the housing parts 6, 7. Here, and preferably, the first housing part 6 has at least one projection, such as, in particular, a rib or several ribs, and the second housing part 7 has at least one recess, such as, in particular, a groove or several grooves, wherein the projection or projections engage(s) in the recess(s) such that the housing parts 6, 7 are prevented from rotating relative to each other. This is evident from the Fig. 1a) and Fig. 1b) It is evident in which, in the lower part of the illustration, a portion of the first housing part 6 has been cut away, revealing the recesses of the second housing part 7, which are formed as grooves. It is also conceivable that the second housing part 7 has the projection(s) and the first housing part 6 has the recess(s), or that the first housing part 6 has at least one recess and at least one projection, and the second housing part 7 has at least one projection and at least one recess.

[0083] In general, the adjustment arrangement 1 can be designed particularly preferably as a spindle drive.

[0084] Furthermore, a locking element arrangement 5 is proposed, comprising a locking element 2 and a proposed adjustment arrangement 1. The locking element arrangement 5 is in Fig. 1a) shown, here assigned to motor vehicle 3 and has already been mentioned above in connection with the adjustment arrangement 1.

[0085] Reference may be made to all explanations regarding the proposed adjustment arrangement 1.

[0086] In principle, the adjustment arrangement 1 can be configured as either active or passive. With regard to Fig. 1a) However, it has proven particularly advantageous if the locking element arrangement 5 has several adjustment arrangements 1 as proposed, in particular one of the adjustment arrangements 1 being active ( Fig. 1a)) and the other of the adjustment arrangements 1 passive ( Fig. 1b)) is trained. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2004 040 170 A1

[0003]

Claims

[1] Adjustment arrangement for a locking element (2) of a motor vehicle (3) with a body (4), wherein the adjustment arrangement (1) comprises two housing parts (6, 7) that are telescopically extendable relative to each other, each with a connection (8) for connecting the adjustment arrangement (1) to the locking element (2) and the body (4), wherein the adjustment arrangement (1) comprises a spindle (9), a spindle nut tube (10) and a spindle nut (11) arranged on the spindle nut tube (10), wherein the spindle nut tube (10) is rotatably mounted on a first housing part (6) and the spindle (9) is fixedly mounted on a second housing part (7), wherein the spindle (9) and the spindle nut (11) are engaged with each other via a threaded connection (12) such that the spindle nut (11) is moved along the spindle (9) during a rotational movement of the spindle nut tube (10), thereby telescoping the housing parts (6, 7) relative to each other.wherein the adjusting arrangement (1) has a preloading arrangement (13) for preloading the connections (8) to each other, characterized by , that the preload arrangement (13) has a torsion spring (14) and that the torsion spring (14) preloads the spindle nut tube (10) with the spindle nut (11) in a direction of rotation. [2] Adjustment arrangement according to claim 1, characterized by , that the adjustment arrangement (1) is adjustable into a retracted state and into an extended state and that the connections (8) are pre-tensioned by the pre-tensioning arrangement (13), in particular by the torsion spring (14), in the direction of the retracted state or in the direction of the extended state. [3] Adjustment arrangement according to claim 2, characterized by, that the preload arrangement (13) preloads the connections (8) to each other with a respective preload force both in the retracted state and in the extended state, preferably that the preload force in the retracted state exceeds the preload force in the extended state. [4] Adjustment arrangement according to one of the preceding claims, characterized by , that the adjusting arrangement (1) has a bearing arrangement (16) and that the bearing arrangement (16) rotatably supports the spindle nut tube (10) at two axially spaced bearing points (17) on the first housing part (6), preferably that the bearing arrangement (16) has two bearing elements (18) which each support the spindle nut tube (10) at one of the bearing points (17), further preferably that one of the bearing elements (18) or the bearing elements (18) is / are each designed as a radially supporting bearing element (18). [5] Adjustment arrangement according to claim 4, characterized by , that the bearing arrangement (16), in particular one of the bearing elements (18), is designed and arranged on the first housing part (6) such that a housing chamber (20) is formed in the first housing part (6), which is spatially separated from the second housing part (7) by the bearing arrangement (16), in particular by one of the bearing elements (18), preferably that the torsion spring (14) is arranged inside the housing chamber (20). [6] Adjustment arrangement according to one of the preceding claims, characterized by, that the torsion spring (14) has two spring connections (24, 25) and that a first spring connection (24), in particular rotationally fixed, is connected to the spindle nut tube (10) and a second spring connection (25), in particular rotationally fixed, is connected to the first housing part (6), preferably that the spindle nut tube (10) has a connecting section (27) and that the first spring connection (24) is connected to the spindle nut tube (10) via the connecting section (27), and / or that the second spring connection (25) is connected to the first housing part (6) via one of the bearing elements (18). [7] Adjustment arrangement according to one of the preceding claims, characterized by, that the adjusting arrangement (1) has an intermediate gear (26) and that the torsion spring (14) is connected via the intermediate gear (26) to the spindle nut tube (10) or to the first housing part (6), in particular that the first spring connection (24) or the second spring connection (25) is connected via the intermediate gear (26) to the spindle nut tube (10) or to the first housing part (6), preferably that the intermediate gear (26) has a ring gear (28), several planets (29), a planet carrier (30) and a sun gear (31) and that the torsion spring (14) is connected to the planet carrier (30) in a rotationally fixed manner, further preferably that the ring gear (28) is arranged on the first housing part (6), and / or that the sun gear (31) is arranged on the spindle nut tube (10). [8] Adjustment arrangement according to claim 6 or 7, characterized by, that the spring connections (24, 25) are arranged on opposite sides or on the same side of the torsion spring (14) with respect to the axial direction. [9] Adjustment arrangement according to one of claims 6 to 8, characterized bythat the torsion spring (14) is positively connected to the spindle nut tube (10) or the first housing part (6) via the first spring connection (24) and / or via the second spring connection (25), preferably that the torsion spring (14) has a torsion section (32) which is arranged between the first spring connection (24) and the second spring connection (25), and that the first spring connection (24) and the second spring connection (25) are arranged on the torsion section (32), in particular integrally formed, further preferably that the first spring connection (24) and / or the second spring connection (25) is / are arranged on the torsion section (32) oriented substantially in the axial direction and / or substantially in the radial direction with respect to the longitudinal axis of the torsion spring (14). [10] Adjustment arrangement according to one of the preceding claims, characterized by, that the torsion spring (14) can be supported via the spindle nut tube (10) in the manner of a guide mandrel, and / or that the torsion spring (14) can be supported via the first housing part (6) in the manner of a guide sleeve. [11] Adjustment arrangement according to one of the preceding claims, characterized by , that the torsion spring (14) has a wire body (33), preferably that the wire body (33) has a round, in particular circular or oval, or polygonal, in particular rectangular, wire cross-section (34). [12] Adjustment arrangement according to one of the preceding claims, characterized by , that the preload arrangement (13) has a further torsion spring (35) and that the torsion spring (14) together with the further torsion spring (35) preloads the spindle nut tube (10) with the spindle nut (11) in the direction of rotation, preferably that the torsion spring (14) and the further torsion spring (35) are arranged next to each other in a radial direction. [13] Adjustment arrangement according to one of the preceding claims, characterized by , that the preload arrangement (13) has a preload element (23) that is different from the torsion spring (14) and optionally from the further torsion spring (35), and that the preload element (23) preloads the spindle (9) in an axial direction, in particular relative to the first housing part (6), preferably that the preload element (23) is arranged in the spindle nut tube (10), and / or that the preload arrangement (13) has a further preload element (38) that is different from the torsion spring (14), which preloads the housing parts (6, 7) and / or the connections (8) relative to each other in an axial direction, preferably that the further preload element (38) is arranged in the second housing part (7). [14] Locking element arrangement comprising a locking element (2) and an adjustment arrangement (1) according to one of the preceding claims.

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