Adjustment element, first component with adjustment element, connection structure including first component, manufacturing method and connection method of adjustment element

Abstract

An adjusting element (1, 3, 5, 7) for compensating for distance tolerances between a first component A and a second component B is described, which is formed as one piece and is made of metal. The adjusting element (1, 3, 5, 7) comprises: a hollow cylindrical body (10) having a radially outwardly extending flange (16) adjacent to a first axial end (12) and an external thread (22) in a first thread direction located radially outward, so that the adjusting element (1, 3, 5, 7) can be rotated by a tool, a receiving portion (32) located radially inside the hollow cylindrical body (10), and a traction element (50, 52, 54, 56, 58, 59) is to be received in the receiving portion (32), the receiving portion (32) comprising at least one radially inwardly extending protrusion (36) located radially inside the hollow cylindrical body (10) and suitable for positively fitting with the traction element (50, 52, 54, 56, 58), and at least one shoulder (42) extending circumferentially at the radial inside and providing axial limitation.

Description

Technical Field

[0001] The present invention relates to an adjusting element for compensating for a distance tolerance between a first component and a second component, a first component comprising the adjusting element, a connecting structure comprising two components and using the adjusting element, a manufacturing method for the adjusting element, and a connecting method for connecting two components to each other. Background Art

[0002] In the prior art, there are many known tolerance compensation devices for compensating the distance between a first component and a second component to be fixed to each other. Such tolerance compensation devices include an adjustment element made of plastic and having an external thread in a first thread direction and a pulling element arranged in a through hole of the adjustment element. The adjustment element is screwed into a base element (e.g. a blind rivet nut) having an internal thread matching the external thread of the adjustment element and a fastening thread in a second thread direction opposite to the first thread direction.

[0003] In use, a blind rivet nut as a base element in which an adjusting element is arranged is fastened in an opening of a first component. Thereafter, a second component having a second opening is arranged at a distance from the first component and aligned with the first component. A fastening screw is inserted through the second opening of the second component and engages with a traction element arranged in the adjusting element. By rotating the screw, the adjusting element is screwed out of the base element and abuts against the second component. Further rotation of the screw causes the screw to engage with the fastening thread of the base element. After tightening the screw, the entire process is completed.

[0004] EP1510701A1 describes an exemplary device for connecting components using a blind rivet nut and compensating for the distance tolerance between a first component and a second component. The device for connecting components includes a blind rivet nut, which is fastened in a first component by means of an installation tool having a bolt. In addition, the device includes a spacer, which is threadedly engaged with the blind rivet nut, and the spacer is unscrewed from the blind rivet nut and abuts against another component by the movement of the spacer. The connecting screw can be screwed into the blind rivet nut, and a torque transmission intermediate member is arranged in a receptacle of the spacer, and when the connecting screw is screwed, the torque transmission intermediate member transmits torque to the spacer. In order to anchor the blind rivet nut in the first component, the bolt can be inserted into the intermediate member and the spacer, and then screwed into the blind rivet nut without rotating the spacer in its unscrewing direction.

[0005] Another device for compensating the tolerance between two parts to be connected is described in DE102018201496A1. The device comprises a hollow cylindrical base element, a hollow cylindrical compensating element that is threadedly engaged with the base element and can be moved from a starting position to a compensating position by rotating relative to the base element, a threaded element for threading with a screw element extending through the inner cavity of the base element and the inner cavity of the compensating element, and a traction element arranged in the inner cavity of the compensating element. The traction element is injection molded onto the side surface of the inner cavity of the compensating element by an injection molding process. In addition, the traction element is frictionally engaged with the screw element passing through the inner cavity, so that the torque applied by the screw element can be transmitted to the compensating element.

[0006] DE10300991A1 describes a compensating threaded connection for connecting two components spaced apart from each other with a certain tolerance. The connection comprises a base element fastened to a first component (which has an opening for inserting a connecting screw) and a compensating element, which is configured to the base element by spirally ascending inclined support surfaces and counter-incline support surfaces, so that starting from a basic position in which the compensating threaded connection has its shortest length, it is rotationally driven by the connecting screw to a spaced position, but at most to a stop on the base element. It is important that the inclined support surfaces and the counter-incline support surfaces are formed by an internal thread and an external thread, and the stop is formed by an end radial protrusion of the thread rib and an associated stop step of the thread groove.

[0007] WO2020 / 014422A1 describes a compensating nut. The compensating nut comprises an outer sleeve having an internal thread and an inner sleeve having an external thread. The inner sleeve and the outer sleeve are connected together by their threads so that the inner sleeve and the outer sleeve can move relative to each other. Further, the compensating nut comprises a washer and a centering body placed on the inner sleeve.

[0008] EP3237763A1 describes another compensating nut assembled from a nut and a bolt. The compensating nut is used to attach an application to a surface or panel while maintaining a variable distance between the surface and a supporting element or chassis to which the nut is attached, the compensating nut preventing this distance from shortening when the application attachment bolt is tightened, and comprising a slightly flexible plastic annular body, such as an overmolded sleeve of vulcanized plastic, tightly held in a cylindrical axial inner hollow of the bolt.

[0009] Another compensating nut for performing the fixing of two parts together, which can be connected together at a slightly variable distance while maintaining said distance separating them, is described in EP2951447A1. This nut is formed by a combination of a top, one or more intermediate nuts and a base clip or nut, these parts being provided with threads which allow their mutual cooperation and their mutual retraction or extension (by a single screwing operation), each of said threads being provided with a stop which limits their relative displacement.

[0010] EP3114359A1 describes a device for connecting a structural element, in particular a structural element made of a fiber reinforced plastic composite material, to a retaining element at a distance by means of a connecting screw, the device comprising a distance compensation element comprising a longitudinal hole for the passage of the connecting screw, and a traction element arranged in the longitudinal hole. The traction element can be connected to the connecting screw by friction fit, so that the distance compensation element can be transferred to an abutment position bridging the distance between the structural element and the retaining element by screwing in the connecting screw. The distance compensation element is connected to an insertion component by a threaded connection. The insertion component comprises a fastening portion, which can be arranged in the structural element for coupling with the structural element.

[0011] DE10131340A1 describes another device for fastening a first component in a spaced position to a second component. The device comprises a fastener fastened to the second component, a connecting screw, and a spacer assigned to the fastener, which moves from a position away from the first component to a position in contact with the first component when the connecting screw is screwed in. A stop element is provided which is assigned to the spacer and protrudes radially outwards to block the displacement of the spacer on a third component at a determined distance.

[0012] DE10034968A1 relates to a clip which can be slid onto the edge of a component and has a screw-in sleeve which can be aligned with an opening of the component close to the edge, and a fastening leg which is connected to the screw-in sleeve via a web overlapping the edge of the component and through which a screw engages, the screw being screwed into the screw-in sleeve through the opening of the component. To facilitate assembly, the fastening leg forms a tension element which exerts a force on the screw in the opposite direction of the screwing-in direction, the tension element frictionally engages with the screw and moves away from the component due to the rotational drive when the screw is screwed in.

[0013] DE102013216716A1 describes a device for compensating for tolerances between two parts to be connected, the device having a base element defining an axial direction, a compensating element movable relative to the base element to compensate for the tolerances between the parts to be connected, and a fixing device for fixing the compensating element to prevent it from moving relative to the base element. The fixing device can be released independently of the movement of the compensating element relative to the base element.

[0014] DE102017100442A1 describes a locking nut for fastening a first component to a second component, which has a retaining frame and a nut mounted in the retaining frame in a form-fitting manner. The locking nut has a fastening portion arranged on the retaining frame so that the locking nut is arranged on the first component. The nut thread of the nut can be obtained from both sides through the retaining frame groove in the retaining frame. The locking nut has a compensating element and a drive sleeve, the compensating element having a thread adapted to the nut thread and a longitudinal hole from the end of the first compensating element to the end of the second compensating element. The drive sleeve is arranged in the longitudinal hole in a force-locking manner. The compensating element is screwed into the nut in the starting position, so that when the fastening screw passing through the drive sleeve is screwed into the component thread of the second component in the stopping direction, the compensating element is loosened from the nut in the stopping direction until the component stop portion of the second component.

[0015] WO2018 / 060055A1 describes a spring element of a device for compensating tolerances between a first component and a second component. The spring element has at least one spring arm having two opposite end regions along its longitudinal direction. The distance between at least one end region and the longitudinal center axis of the spring element is greater than the distance between the spring arm and the middle part between the two end regions. In addition, at least one end region forms a radially outwardly protruding corner.

[0016] Finally, a tolerance compensation element is described in EP1533185A1. This device is used to bridge the gap between the load-bearing part and the roof body and is intended to fasten a roof rack, a roof rail, a roof bar, etc. to the roof. The device comprises a support part and a counter-support part, which are held together by a threaded connection and can be displaced relative to each other to allow adjustment of the bridge length. The support part and / or the counter-support part are provided with an internally arranged adjustment tool holder for manipulating and / or adjusting the bridge length.

[0017] Most of the above devices consist of a number of separate parts, namely a base element, an adjustment element and a traction element. Only the base element and the fastening screw are made of metal, while the adjustment element is made of plastic. In some approaches, a separate traction element is not required, since the traction function is provided directly by the adjustment element. However, such a solution is costly.

[0018] Furthermore, adjusting elements with an integrated pulling function must be handled carefully during transport, since the geometry of the pulling part is fragile and unprotected. In addition, a relatively large installation space is required compared to other technical solutions. Finally, there are restrictions on the material selection for the pulling part, since this part is usually injection molded into the adjusting element.

[0019] In addition, most of the above-mentioned devices include traction elements made of plastic, which is disadvantageous. For example, traction elements made of plastic have relatively low traction forces and reach the maximum contact pressure very quickly. In this case, the thread tip of the fastening screw forms a groove in the traction element. The negative effect resulting from this can be compensated by increasing the contact area. But this in turn leads to the traction element requiring more installation space, as is the case with adjustment elements with integrated traction function.

[0020] Furthermore, in the case of traction elements made of plastic, such elements are susceptible to the influence of the surrounding environment, such as temperature and humidity. This may lead to failure of the traction element. The same applies to adjustment elements made of plastic.

[0021] On the other hand, a traction element made of metal usually requires a separate element to fix the traction element in the adjustment element. Therefore, the manufacturing process is complicated.

[0022] In view of the prior art, the object of the present invention is therefore to provide an improved adjusting element and a corresponding production method which allow a compact design (ie require less installation space), ensure a high holding force and at the same time be cost-effective. Summary of the invention

[0023] The above objects are achieved by an adjusting element according to independent claim 1, a first component comprising an adjusting element according to independent claim 11, a connecting structure comprising the first component according to independent claim 13 or 14, a manufacturing method for an adjusting element according to independent claim 15, and a connecting method for connecting two components to each other according to independent claim 17. Further preferred embodiments and developments emerge from the following description, the drawings and the dependent claims.

[0024] The adjusting element according to the invention is formed as a single piece, made of metal, and is used to compensate for distance tolerances between a first component and a second component. The adjusting element comprises: a hollow cylindrical body having a radially outwardly extending flange adjacent to a first axial end and an external thread in a first thread direction located radially outwardly; a drive feature, so that the adjusting element can be rotated by a tool; a receiving portion at the radial inner side of the hollow cylindrical body, in which a traction element is to be received, wherein the receiving portion comprises at least one radially inwardly extending protrusion, in particular a plurality of radially inwardly extending protrusions, which are radially inner side of the hollow cylindrical body and are suitable for positively connecting with the traction element, and at least one shoulder extending circumferentially at the radial inner side and having or providing an axial stop.

[0025] The adjusting element has the known features of a hollow cylindrical body with a radially outwardly extending flange adjacent to a first axial end and an external thread of a first thread direction at a radially outer side. When in use, in a starting position, the flange is arranged near the first component, in particular its lower side (i.e. the side of the flange facing the second axial end of the hollow cylindrical body) is arranged near the first component. In the final state or position, the upper side of the flange (i.e. the side opposite to the lower side) abuts against the second component to maintain the distance between the first component and the second component.

[0026] The external thread is preferably arranged at the second axial end of the hollow cylindrical body or adjacent to the second axial end of the hollow cylindrical body. In addition, preferably, the non-threaded portion exists between the lower side of the flange (that is, the side of the flange facing the second axial end) and the external thread. The advantage of this non-threaded portion or groove is that the adjusting element can be completely screwed into the first internal thread. Thus, the adjusting element can be locked in the first internal thread, which provides transportation safety. When doing this, the adjusting element must be unlocked, that is, screwed out from the first internal thread so that there is a small gap between the lower side of the flange and the first component, and then the adjusting element can be used to compensate for the distance tolerance to the second component. In addition, preferably, before the external thread begins, the non-threaded portion exists at the second axial end. This non-threaded portion has the function of a guide portion, so as to facilitate screwing in.

[0027] The drive feature is particularly used to screw the adjusting element into a matching first internal thread with a first thread direction. In particular, the drive feature is required to lock and unlock the adjusting element in the first internal thread, as previously explained in conjunction with the unthreaded portion on the lower side of the adjacent flange. To this end, the drive feature is preferably arranged at or adjacent to the first axial end. In addition, the drive feature has a structure that allows a form-fitting connection with a corresponding tool. An independent drive feature suitable for a form-fitting connection with a tool is a first difference relative to the prior art. In particular, an independent drive feature suitable for a form-fitting connection and arranged at the first axial end is not required in the prior art.

[0028] The structure of the adjustment element inside (ie at the radially inner side of the hollow cylindrical body) differs from known adjustment elements, in particular the part where the traction element will be received. In the following, this part will be referred to as the traction element receiving part, or simply the receiving part or receiving cavity.

[0029] In the receiving part, at least one radially inwardly extending protrusion is provided, which is suitable for a positive connection with a traction element to be received or inserted. For this purpose, the at least one radially inwardly extending protrusion preferably extends parallel to the longitudinal axis of the adjustment element. An example of such a protrusion is a web extending parallel to the longitudinal axis on the inner side of the hollow cylindrical body and having a defined circumferential extension. Thus, for example by the edge of the exemplary web, the traction element inserted into the receiving part will be prevented from rotating in the receiving part relative to the adjustment element over a full circle. Therefore, the at least one radially inwardly extending protrusion can also be denoted as a rotation-inhibiting feature. With regard to the construction of the traction element, we refer to the discussion of the corresponding traction element in the preferred embodiment of the adjustment element below.

[0030] Furthermore, the receiving portion, which is preferably formed by the recess, comprises at least one shoulder extending circumferentially at the radial inside and providing axial stop. The portion adjacent to the receiving portion preferably has an inner diameter which is only slightly larger than the outer diameter of the fastening screw extending laterally through the adjustment element. The technical effect of this portion is to center the fastening screw, so that this centering is indicated as the centering portion. Preferably, the centering portion has a smooth surface. Therefore, a shoulder is present at the transition from the centering portion to the receiving portion. This is because the inner diameter of the centering portion is only slightly larger than the outer diameter of the fastening screw. In this case, the receiving portion must preferably have a larger inner diameter for receiving the traction element without the traction element hindering the fastening screw from passing through the adjustment element.

[0031] The technical effect of the at least one shoulder is thus to provide a stop or limit for the traction element to be inserted, i.e. to provide axial protection against loss by a form-fit connection with the traction element. Preferably, the shoulder is formed by a shoulder extending along the entire circumference or by a step extending along the entire circumference, although other structures that achieve this general function are also conceivable. For example, the shoulder may not extend along the entire circumference, but may be interrupted. Alternatively, this function may be achieved by a shoulder formed as a tapered portion between the receiving portion and the centering portion.

[0032] Finally, the adjusting element of the present invention is made of metal and is formed as a single piece. Therefore, the adjusting element of the present invention is preferably manufactured by cold forming or cold working technology. This enables the adjusting element to be produced at low cost.

[0033] With regard to the subsequent use of the adjusting element (which at this point also includes the traction element as a separate or independent element), the starting point is the first component which provides the first internal thread of the first thread direction. Since the adjusting element of the invention is made of metal, a direct fastening of the adjusting element in the corresponding first component can be achieved. Therefore, an alternative is that the first internal thread is directly arranged in the first component or is provided by a separate element (for example a blind rivet nut) fastened in the opening of the first component. With regard to the use of the blind rivet nut, it should be noted that the adjusting element according to the invention is not fastened together with the blind rivet nut as in the prior art. Instead, the adjusting element will only be screwed into the blind rivet nut by means of the drive feature after the blind rivet nut has been fastened in the opening of the first component.

[0034] With regard to the first alternative, the adjusting element is screwed into a first internal thread provided directly in the first component by means of a drive feature. This can be done, for example, at a first construction site or company. If the first component with the screwed-in adjusting element has to be transported to a second construction site or company, the adjusting element is preferably locked in the first internal thread before transport. After transport, the adjusting element is unlocked, as described above, by screwing it out of the first internal thread so that there is a small gap between the underside of the flange and the first component.

[0035] Thereafter, the second component is arranged at a distance from the first component, wherein the second opening in the second component is preferably aligned with the longitudinal axis of the adjusting element. Subsequently, a set screw having a second external thread in a second thread direction opposite to the first thread direction is inserted through the first component to engage with the traction element. Now, the set screw is rotated until the flange of the adjusting element abuts against the second component. Further rotation of the set screw causes the set screw to be screwed into a second internal thread having a second thread direction and arranged at the second component. For example, the second internal thread can be provided by a nut welded to the second component or directly in the second component. As a result, the head of the set screw is arranged at the first component, the set screw extends through the first component and the adjusting element at least partially arranged in the first component, and the set screw is fastened in the second internal thread at the second component. In other words, the adjusting element has been displaced along the insertion direction of the set screw.

[0036] For the second alternative, in which the first internal thread is provided by the exemplary blind rivet nut, the adjusting element is screwed into the first internal thread of the blind rivet nut by means of a drive feature. This can be done, for example, likewise at the first construction site or company. If the first component into which the adjusting element is screwed has to be transported to the second construction site or company, it is also preferred that the adjusting element is locked in the first internal thread before transport. After transport, as described above, the adjusting element is unlocked by screwing it out of the first internal thread, so that there is a small gap between the underside of the flange and the first component.

[0037] Thereafter, the second component is arranged at a distance from the first component, wherein the second opening in the second component is preferably aligned with the longitudinal axis of the adjusting element. Subsequently, a set screw having a second external thread in a second thread direction opposite to the first thread direction is inserted through the second component to engage with the traction element. Now, the set screw is rotated until the flange of the adjusting element abuts against the second component. Further rotation of the set screw causes the set screw to engage with a second internal thread having a second thread direction also provided at the first component (in particular by means of an exemplary blind rivet nut). Thus, the head of the set screw is arranged at the second component, the set screw extends through the second component and the adjusting element abuts at the second component, and the set screw is fastened in the second internal thread at the first component. In other words, the adjusting element has been displaced in a direction opposite to the insertion direction of the set screw.

[0038] For the sake of completeness, it should be pointed out that the above description of the use of a blind rivet nut as a separate element applies to any case where the first internal thread and the second internal thread are arranged at or in the first component (i.e. the component into which the adjusting element is screwed).

[0039] The adjusting element of the invention is therefore advantageous in that it can be used in a variety of applications while reducing the number of separate components required to achieve the tolerance compensation function. This is particularly due to the fact that the adjusting element is made of metal, in contrast to known adjusting elements made of plastic.

[0040] According to a preferred embodiment, the adjustment element further comprises a plurality of radially inwardly extending projections formed by a plurality of axially extending webs or ribs, which are preferably arranged along the entire circumference. In other words, the internal teeth are present in the receiving part in the case where the webs or ribs are arranged along the entire circumference in the receiving part. By means of this configuration, a rotation of the traction element relative to the adjustment element, in particular in the receiving cavity, is particularly advantageously prevented.

[0041] It is further preferred that at least one radially inwardly extending projection of the adjusting element is arranged adjacent to the first axial end of the hollow cylindrical body or adjacent to the second axial end of the hollow cylindrical body. According to a first alternative, the receiving cavity is arranged at or near the same end as the flange, and the centering portion is arranged at or adjacent to the second axial end. As a result, at least one shoulder blocks an axial movement of the traction element in the direction of the second axial end. Therefore, this type of construction is particularly preferred in the case where the fastening screw is inserted into the adjusting element from the first axial end in use, for example in the case where the first internal thread is provided at the first component.

[0042] In a second alternative, the receiving cavity is arranged at or adjacent to the second axial end, so that the centering portion is arranged at or adjacent to the same end as the flange. Thus, at least one shoulder blocks an axial movement of the traction element in the direction of the first axial end, whereby a configuration of this type is particularly preferred in the case where the fastening screw is inserted into the adjustment element from the second axial end during use. This may be the case, for example, if, as described above, the first internal thread is provided directly in the first component and the second internal thread is present at the second component.

[0043] In addition to the at least one shoulder, it is further preferred that a further shoulder or undercut is provided in or adjacent to the receiving part, which is arranged opposite the at least one shoulder. Such an undercut or shoulder can be provided at the radially inwardly extending projection or independently of the radially inwardly extending projection. The distance between the at least one shoulder at the transition between the receiving part and the centering part and the further shoulder or undercut is greater than the axial extension of the traction element to be received or inserted. In this way, the receiving part forms a receiving cavity in which the traction element can be held in both axial directions in a form-fitting manner.

[0044] Alternatively, the adjustment element can comprise an axial extension which, after the traction element has been inserted into the receiving part, is at least partially deformed, for example by crimping, such that it provides a further stop for the traction element in the receiving part. Thus, the traction element is fixed in the receiving part in both axial directions by a form-fit connection. Thus, no additional elements are required for fixing the traction element in the receiving cavity or the receiving part, and the traction element is protected from forces coming from the outside.

[0045] Regardless of whether the additional shoulder is formed by deformation of the axial extension or by any other mechanism that blocks the axial movement of the traction element, in either case, with the aid of the additional shoulder or undercut, a particularly advantageous transport or anti-loss protection is provided for the traction element received in the receiving part of the adjustment element.

[0046] According to a particularly advantageous embodiment, the adjustment element further comprises a traction element, in particular a traction element as a separate element, wherein the traction element has at least one radially outwardly extending protrusion, preferably a plurality of radially outwardly extending protrusions, which engage with at least one radially inwardly extending protrusion located at the radial inner side of the hollow cylindrical body, so that at least a full rotation of the traction element relative to the adjustment element can be inhibited. The traction element, on the one hand, provides a friction connection with the fastening screw and, on the other hand, is fastened by a form-fit connection against at least a full rotation relative to the adjustment element in the receiving portion, thereby reliably ensuring that the rotation of the screw is transmitted to the adjustment element.

[0047] With regard to the traction element, it is advantageous to provide the traction element with two end sides in the circumferential direction and / or to form the traction element by a spring sheet. Thus, when viewed from above or below, there is a gap in the wall forming the traction element. With the aid of this gap, the traction element is variable so that it can be slightly compressed for insertion into a receiving cavity or receiving portion of the adjustment element. On the other hand, it can be slightly extended by a fastening screw entering the traction element. The advantage of using a spring sheet as a traction element is that the traction element can be reused due to the use of metal for the spring element. Furthermore, due to the configuration of the adjustment element used, no separate fixing device for holding the traction element in the receiving portion is required.

[0048] In a particularly preferred embodiment of the adjustment element comprising a traction element, in which the traction element has two end sides in the circumferential direction, at least one radially outwardly extending projection of the traction element is arranged at a distance from the end sides in the circumferential direction. This design allows the use of traction elements which are of approximately circular configuration when viewed from above. In order to ensure a friction connection with the fastening screw, a traction arm can be provided, as is known in the prior art.

[0049] Furthermore, also for an adjustment element comprising a traction element, wherein the traction element has two end sides in the circumferential direction, it is advantageous if at least one end side, preferably both end sides, comprises at least one radially outwardly extending protrusion. In particular in conjunction with the traction element being formed by a spring sheet, this design can be easily produced and is therefore cost-effective. Furthermore, in particular when each end side has a protrusion, these protrusions prevent the traction element from rotating in the opposite rotational direction relative to the adjustment element.

[0050] In addition, the end sides of the adjustment element, including the traction element, are preferably arranged in a circumferentially overlapping manner. Such a configuration can be produced by stamping or punching the traction element from a spring sheet and then bending it into the desired configuration. Due to the resulting symmetrical design of the traction element, the assembly process, i.e. the process of inserting the traction element into the adjustment element, is simplified. In particular, since each end side has a projection and the projections prevent the traction element from rotating in the opposite direction of rotation relative to the adjustment element, the orientation of the traction element during insertion is irrelevant.

[0051] Finally, in a particularly preferred embodiment, the traction element comprises a plurality of edges, in particular due to the triangular shape of the traction element when viewed from above. This configuration provides an additional support structure due to the edges, which realizes an additional form-fit connection with the radially outwardly extending protrusions at the inner side of the hollow cylindrical body. Thus, the rotation-inhibiting effect is increased compared to an embodiment without such a structure. Furthermore, the edges are preferably connected to each other by a protrusion or a plurality of angled straight portions in the circumferential direction. Thereby, no traction arm is required, because the edges are connected by the protrusions, which realize the traction function.

[0052] In another preferred embodiment of the adjustment element, the drive feature is arranged adjacent to the first axial end of the hollow cylindrical body and is an internal drive feature (preferably a hexagonal socket) and / or an external drive feature (preferably a hexagonal head). By means of these features, as described above, a form-fitting connection between the adjustment element and a tool for rotating the adjustment element (i.e., for initially installing the adjustment element) is achieved.

[0053] A traction element for an adjustment element for compensating for distance tolerances between a first component and a second component, preferably for an adjustment element according to the invention, the traction element comprising: two end sides in the circumferential direction and at least one radially outwardly extending projection, in particular a plurality of radially outwardly extending projections, the at least one radially outwardly extending projection being intended to be connected to the adjustment element in a form-fitting manner so as to inhibit a rotation of the traction element relative to the adjustment element, wherein at least one of the following features is achieved: the radially outwardly extending projections are arranged at a distance from the end sides in the circumferential direction, the end sides are arranged in an overlapping manner in the circumferential direction, or the traction element comprises a plurality of edges, in particular due to the triangular shape of the traction element when viewed from above. By means of the traction element according to the invention, the advantages described above with respect to an adjustment element with a traction element can be achieved. Therefore, in order to avoid repetitions, reference is made to the above paragraph.

[0054] In an embodiment of the traction element, at least one end side, preferably both end sides, comprises a radially outwardly extending projection. In another embodiment, the traction element is formed by a spring leaf. For both embodiments, reference is also made to the above description.

[0055] The method for manufacturing a traction element comprises the following steps: providing a spring sheet and forming a traction element from the spring sheet, for example by stamping or punching and subsequent bending. By this process, a traction element can be produced. Reference is made again to the above discussion to avoid repetition.

[0056] In addition, the present invention provides a first component, which provides a first internal thread of a first thread direction, wherein the adjusting element of the present invention is screwed into the first internal thread, and the adjusting element includes a traction element as an independent element. Therefore, the corresponding first component of the present invention uses the adjusting element of the present invention. The resulting technical effects and advantages have been described in detail above in conjunction with the adjusting element.

[0057] In a preferred embodiment of the first component of the invention, the first internal thread is directly arranged in the first component or provided by a separate element fastened in the opening of the first component, wherein the separate element is preferably a blind rivet nut. These embodiments have also been discussed above in conjunction with the adjusting element, so reference can be made to the above discussion.

[0058] A first alternative of the connection structure of the present invention comprises a first component of the present invention and a second component arranged at a certain distance from the first component and a fastening screw, wherein a first internal thread is directly arranged in the first component, and a second internal thread having a second thread direction opposite to the first thread direction is arranged at the second component, whereby the fastening screw extends through the first component and an adjusting element at least partially arranged in the first component, and is fastened in the second internal thread at the second component.

[0059] A second alternative of the connection structure of the present invention comprises a first component of the present invention and a second component arranged at a certain distance from the first component and a fastening screw, wherein the first internal thread and the second internal thread are arranged on the first component, in particular provided by a separate element (such as a blind rivet nut) fastened in an opening of the first component, whereby the fastening screw extends through the second component and abuts against an adjustment element on the second component, and is fastened in the second internal thread on the first component.

[0060] Two alternative connection structures have already been discussed in detail with reference to the use of the adjustment element of the invention. Therefore, reference is again made to the corresponding paragraphs above with regard to the technical effects and the advantages resulting therefrom.

[0061] The manufacturing method of the present invention for manufacturing the adjusting element of the present invention comprises the following steps: cold forming or cold working the adjusting element having the features of the embodiment of the present invention. By means of the manufacturing method, the adjusting element of the present invention is manufactured. For the technical effects and advantages produced thereby, please refer to the above description to avoid repetition.

[0062] In a preferred embodiment, the manufacturing method further comprises the steps of providing a spring sheet and forming a traction element from the spring sheet and inserting the formed traction element into the interior of the adjustment element. By these steps, the desired traction element is produced, in particular from a spring sheet. The traction element preferably has the features of the traction element as described above in conjunction with the adjustment element of the invention.

[0063] A connection method of the present invention, for connecting a first component and a second component at a certain distance, comprises the following steps: providing the first component of the present invention, inserting a fastening screw through the first component and engaging it with a traction element, rotating the screw until the flange of the adjustment element abuts against the second component, and screwing the fastening screw into a second internal thread provided at the second component and having a second thread direction opposite to the first thread direction, or inserting the fastening screw through the second component and engaging it with the traction element, rotating the screw until the flange of the adjustment element abuts against the second component, and screwing the fastening screw into a second internal thread provided at the first component, the second internal thread having a second thread direction opposite to the first thread direction. With the aid of the above-mentioned alternative connection method of the present invention, the above-mentioned connection structure of the present invention can be manufactured. For the technical effects and advantages thus produced, please refer to the paragraphs related to the connection structure of the present invention to avoid repetition.

[0064] According to a preferred embodiment of the connection method, the step of providing a first component comprises the following steps: providing an adjustment element of the present invention, which comprises a traction element as an independent element, and screwing the adjustment element into a first internal thread having a first thread direction and arranged at the first component through a driving feature. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] The present invention will be described in detail below based on the accompanying drawings. In the accompanying drawings, the same reference numerals represent the same elements and / or components.

[0066] Figure 1 is a top perspective view of a first embodiment of an adjusting element of the present invention,

[0067] Figure 2 is based on Figure 1 A bottom perspective view of the adjustment element,

[0068] Figure 3 yes Figure 1 Bottom view of the adjustment element,

[0069] Figure 4 yes Figure 1 Side view of the regulating element,

[0070] Figure 5 yes Figure 1 A top view of the regulating element,

[0071] Figure 6 is a top perspective view of a second embodiment of an adjusting element of the present invention,

[0072] Figure 7 is based on Figure 6 Another top perspective view of the adjustment element,

[0073] Figure 8 yes Figure 6 Bottom view of the adjustment element,

[0074] Fig. 9 yes Figure 6 Side view of the regulating element,

[0075] Fig.10 yes Figure 6 A top view of the regulating element,

[0076] Fig.11 is a top perspective view of a third embodiment of an adjusting element of the present invention,

[0077] Fig.12 is based on Fig.11 A cross-sectional view of the regulating element,

[0078] Fig.13 is a first perspective view of a first embodiment of a traction element,

[0079] Fig.14 is based on Fig.13 A second perspective view of the traction element,

[0080] Fig.15 yes Figure 1 The regulatory elements and Fig.13 A three-dimensional diagram of the traction element combination,

[0081] Fig.16a With insert Fig.13 The traction element Figure 1 A perspective view of the regulating element,

[0082] Fig.16b yes Fig.16a An enlarged view of the circled portion A of

[0083] Fig.17a yes Fig.16a a sectional view of the adjusting element with the inserted traction element at the second axial end,

[0084] Fig.17b yes Fig.17a The enlarged view of the circled part B in

[0085] Fig.18 yes Fig.16a A sectional view of an adjusting element with an inserted traction element,

[0086] Fig.19 yes Fig.16a A perspective sectional view of an adjusting element with an inserted traction element,

[0087] Fig. 20 yes Fig.16a An enlarged perspective sectional view of the regulating element,

[0088] Fig.21 yes Fig.16a A bottom sectional view of the adjusting element,

[0089] Fig. 22 yes Figure 6 The regulatory elements and Fig.13 A three-dimensional diagram of the traction element combination,

[0090] Fig.23 With insert Fig.13 The traction element Figure 6 A perspective view of the regulating element,

[0091] Fig.24a yes Fig.23 a sectional view of an adjusting element with an inserted traction element at a first axial end,

[0092] Figure 24b yes Fig.24a The enlarged view of the circled part C of

[0093] Fig.25 yes Fig.23 A sectional view of an adjusting element with an inserted traction element,

[0094] Fig.26 yes Fig.23 A perspective sectional view of an adjusting element with an inserted traction element,

[0095] Fig.27a yes Fig.23 An enlarged perspective sectional view of the regulating element,

[0096] Figure 27b yes Fig.27a The enlarged view of the circled portion D of

[0097] Fig.28 yes Fig.23 A bottom sectional view of the adjusting element,

[0098] Fig.29 With insert Fig.13 The traction element Fig.11 A perspective view of the regulating element,

[0099] Fig.30 yes Fig.29 A sectional view of a portion of an adjusting element with an inserted traction element,

[0100] Fig.31 is an exploded view of a first embodiment of a connection structure of the present invention, wherein the connection structure comprises Fig.13 A fourth embodiment of an adjusting element combined with a traction element, a blind rivet nut and a fastening screw,

[0101] Fig.32 yes Fig.31 A partial cross-sectional view of a connection structure in which a blind rivet nut is installed.

[0102] Fig.33 yes Fig.32 A three-dimensional diagram of the connection structure.

[0103] Fig.34 for Fig.31 A partial cross-sectional view of a connection structure of FIG. 1 , wherein the fastening screw is engaged with the traction element and the adjustment element is in an initial state,

[0104] Fig.35 yes Fig.34 A three-dimensional diagram of the connection structure.

[0105] Fig.36 yes Fig.31 a partial cross-sectional view of a connection structure of the embodiment of the present invention, wherein the fastening screw is engaged with the traction element and the adjustment element abuts against the second component,

[0106] Fig.37 yes Fig.36 A three-dimensional diagram of the connection structure.

[0107] Fig.38 yes Fig.31 A partial cross-sectional view of a connection structure of FIG. 1 , wherein a fastening screw is engaged with a traction element and the fastening screw is tightened,

[0108] Fig.39 yes Fig.38 A three-dimensional diagram of the connection structure.

[0109] Fig.40 is an exploded view of a second embodiment of the connection structure of the present invention, wherein the connection structure comprises Figure 1 A first embodiment of the regulating element and Fig.13 The traction elements and fastening screws,

[0110] Fig.41 yes Fig.40 A partial cross-sectional view of the connection structure in which the adjustment element is installed,

[0111] Fig.42 yes Fig.41 A three-dimensional diagram of the connection structure.

[0112] Fig.43 for Fig.40 A partial cross-sectional view of a connection structure of FIG. 1 , wherein the fastening screw is engaged with the traction element and the adjustment element is in an initial state,

[0113] Fig.44 yes Fig.43 A three-dimensional diagram of the connection structure.

[0114] Fig.45 yes Fig.40 a partial cross-sectional view of a connection structure of the embodiment of the present invention, wherein the fastening screw is engaged with the traction element and the adjustment element abuts against the second component,

[0115] Fig.46 yes Fig.45 A three-dimensional diagram of the connection structure.

[0116] Fig.47 yes Fig.40 A partial cross-sectional view of a connection structure of FIG. 1 , wherein a fastening screw is engaged with a traction element and the fastening screw is tightened,

[0117] Fig.48 yes Fig.47 A three-dimensional diagram of the connection structure.

[0118] Fig.49 is a perspective view of a second embodiment of a traction element,

[0119] Fig.50 is a perspective view of a third embodiment of a traction element,

[0120] Fig.51 is a perspective view of a fourth embodiment of a traction element,

[0121] Fig.52 is a perspective view of a fifth embodiment of a traction element,

[0122] Fig.53 is a perspective view of a sixth embodiment of a traction element,

[0123] Fig.54 is a schematic flow chart of an embodiment of a method for manufacturing a traction element,

[0124] Fig.55 is a schematic flow chart of an embodiment of a method for manufacturing a regulating element according to the present invention, and

[0125] Fig.56 is a schematic flow chart of an embodiment of a connection method of the present invention for connecting a first component and a second component. DETAILED DESCRIPTION

[0126] The adjusting element 1, 3, 5, 7 serves to compensate for distance tolerances between a first component A and a second component B. Such a distance may exist, for example, when components in the automotive industry are fastened to one another. Furthermore, for all embodiments, the adjusting element 1, 3, 5, 7 is made of metal and formed as a single piece, preferably by a cold forming or cold working process. This enables the adjusting element 1, 3, 5, 7 to be produced in a cost-effective manner.

[0127] Reference below Figures 1 to 5 The structure of the adjusting element 1 according to the first embodiment is explained. It can be seen that the adjusting element 1 comprises a hollow cylindrical body 10 having a first axial end 12 and a second axial end 14. A flange 16 is arranged at the first axial end 12 of the hollow cylindrical body 10. The flange 16 has an upper side 18 facing away from the second axial end 14 and a lower side 20 facing the second axial end 14. Preferably, the upper side 18 and the lower side 20 are respectively arranged in respective planes perpendicular to the longitudinal axis of the hollow cylindrical body 10.

[0128] There is an external thread 22 of the first thread direction on the radially outer side of the hollow cylindrical body 10. The external thread 22 is arranged adjacent to the second axial end 14 of the hollow cylindrical body 10. In addition, there is a first unthreaded portion 24 between the lower side 20 of the flange 16 (i.e. the side of the flange 16 facing the second axial end 14) and the external thread 22. The advantage of this first unthreaded portion or groove 24 is that the adjustment element 1 can be completely screwed into the first internal thread 82 of the first component A, wherein the first internal thread 82 has the first thread direction. As a result, the adjustment element 1 can be locked in the first internal thread 82, which provides transportation safety.

[0129] Furthermore, before the external thread 18 begins, there is a second non-threaded portion 26 at the second axial end 14. The second non-threaded portion 26 has the function of a guide to facilitate screwing the adjustment element 1 into the first internal thread 62. Furthermore, there is an axial extension 28 at the second axial end 14. The axial extension 28 has an outer diameter that is smaller than the outer diameter of the second non-threaded portion 26. The function of the axial extension 28 will be explained later after the internal structure of the adjustment element 1 is discussed.

[0130] The adjustment element 1 further comprises a drive feature 30 arranged adjacent to the first axial end 12. Here, the drive feature 30 allows a positive connection with a corresponding tool and is an internal drive feature 30, in particular a hexagon socket. The drive feature 30 is used to screw the adjustment element 1 into a matching first internal thread 82 with a first thread direction. Thus, a positive connection between the adjustment element 1 and a tool for rotating the adjustment element 1 (i.e. for initially installing the adjustment element 1) is provided.

[0131] The adjusting element 1 comprises a region inside (i.e. at the radial inside of the hollow cylindrical body 10) in which the traction elements 50, 52, 54, 56, 58, 59 are to be received, which region will be referred to as the traction element receiving portion 32 or simply as the receiving portion or receiving cavity 32. Furthermore, adjacent to the receiving portion 32 there is a region whose inner diameter is only slightly larger than the outer diameter of the fastening screw 90 extending later through the adjusting element 1. The technical effect of this region is the centering of the fastening screw 90, so this region is indicated as the centering portion 34. Here, the centering portion 34 has a smooth surface.

[0132] In the receiving portion 32, at least one radially inwardly extending protrusion 36 is provided. This radially inwardly extending protrusion 36 is adapted to be connected in a form-fitting manner with a traction element 50, 52, 54, 56, 58, 59 to be received or inserted. Furthermore, the radially inwardly extending protrusion 36 extends parallel to the longitudinal axis of the hollow cylindrical body 10. Thus, the traction element 50, 52, 54, 56, 58, 59 inserted into the receiving portion 32 will be prevented from rotating in the receiving portion 32 relative to the adjustment element 1 over a full rotation. Therefore, the at least one radially inwardly extending protrusion 36 may also be referred to as a rotation-inhibiting feature.

[0133] In the adjustment element 1 according to the first embodiment, there are a plurality of radially inwardly extending projections 36, and these projections 36 are formed by a plurality of axially extending ribs 38. These axially extending ribs 38 extend parallel to the longitudinal axis of the hollow cylindrical body 10 and are arranged along the entire circumference. In other words, by these ribs 38 in the receiving portion 32, there are internal teeth or knurling. In the case of knurling, due to the axial extension of the ribs 38, the grooves between the ribs 38 extend parallel to the longitudinal axis of the hollow cylindrical body 10. By this configuration, the traction elements 50, 52, 54, 56, 58, 59 are particularly advantageously prevented from rotating relative to the adjustment element 1 in the receiving cavity 32.

[0134] Furthermore, the receiving portion 32 formed by the recess comprises an axial stop in the form of a shoulder 42 extending circumferentially radially on the inside. The shoulder 42 is present at the transition from the centering portion 34 to the receiving portion 32. This is due to the fact that the inner diameter of the centering portion 34 is only slightly larger than the outer diameter of the fastening screw 90. In the present example, the receiving portion 32 has a larger inner diameter for receiving the traction elements 50, 52, 54, 56, 58, 59, so that the traction elements 50, 52, 54, 56, 58, 59 do not hinder the fastening screw 90 from passing through the adjustment element 1.

[0135] The technical effect of the shoulder 42 is thus to provide a stop or limit for the traction element 50, 52, 54, 56, 58, 59 to be inserted, i.e. to provide axial protection against loss by a form-fit connection with the traction element 50, 52, 54, 56, 58, 59. In the present embodiment, the shoulder 42 is formed by a step extending along the entire circumference, but other structures that achieve this general function are also conceivable. For example, the shoulder 42 may not extend along the entire circumference, but may be interrupted. Alternatively, this function may be achieved by a tapered portion between the receiving portion 32 and the centering portion 34.

[0136] From the basis Figures 1 to 5 As can be seen in the embodiment of the adjusting element 1 of FIG. 1 , the receiving portion 32 and therefore the plurality of ribs 38 are arranged adjacent to the second axial end 14 of the hollow cylindrical body 10. The centering portion 34 is therefore arranged at or adjacent to the same end as the flange 16, here the first axial end 12. Due to this arrangement, the shoulder 42 blocks an axial movement of the traction elements 50, 52, 54, 56, 58, 59 in the direction of the first axial end 12.

[0137] In order to block the movement of the traction element 50, 52, 54, 56, 58, 59 in the opposite axial direction, the axial extension 22 can be at least partially deformed, for example by crimping or by applying a punch, after the traction element 50, 52, 54, 56, 58, 59 has been inserted into the receiving portion 32, so as to provide a further stop for the traction element 50, 52, 54, 56, 58, 59 in the receiving portion 32. According to this, the traction element 50, 52, 54, 56, 58, 59 is fixed in the receiving portion 32 by a form-fit connection in both axial directions. Therefore, no additional elements are required to fix the traction element 50, 52, 54, 56, 58, 59 in the receiving cavity or the receiving portion 32, and the traction element 50, 52, 54, 56, 58, 59 is protected from forces from the outside.

[0138] Now refer to Figures 6 to 10 , discuss the adjustment element 3 according to the second embodiment. Similar to the first embodiment, the second embodiment comprises a hollow cylindrical body 10 having substantially the same structure. For easier understanding, the differences from the adjustment element 1 of the first embodiment will be discussed below.

[0139] First, with respect to the flange 16 and the drive feature 30, the drive feature 30 of the adjustment element 3 according to the second embodiment is an external drive feature 30, specifically a hexagonal head. In the adjustment element 3 according to the second embodiment, the drive feature 30 also allows a form-fit connection with a corresponding tool. Accordingly, the drive feature 30 is used to screw the adjustment element 1 into the matching first internal thread 82 with a first thread direction. Therefore, a form-fit connection between the adjustment element 3 and a tool for rotating the adjustment element 3 (i.e., for initially installing the adjustment element 3) is provided.

[0140] With regard to the internal structure of the adjustment element 3, the positions of the receiving portion 32 and the centering portion 34 are interchanged compared to the adjustment element 1 according to the first embodiment. Thus, the receiving portion 32 formed by the recess is arranged adjacent to the first axial end 12, and the centering portion 34 is arranged adjacent to the second axial end 14. Thus, a plurality of radially inwardly extending protrusions 36 (here ribs 38) of the adjustment element 3 are arranged adjacent to the first axial end 12 of the hollow cylindrical body 10. Accordingly, the receiving cavity 32 is arranged at or adjacent to the same end as the flange 16, and the centering portion 34 is arranged at or adjacent to the second axial end 14. Thus, the shoulder 42 blocks an axial movement of the traction elements 50, 52, 54, 56, 58, 59 in the direction of the second axial end 14.

[0141] Finally, the axial extension 28 is arranged at the first axial end 12 of the adjustment element 3 according to the second embodiment. As discussed above with respect to the first embodiment, the axial extension 28 can be deformed to block the axial movement of the traction elements 50, 52, 54, 56, 58, 59 after the traction elements 50, 52, 54, 56, 58, 59 have been inserted into the receiving portion 32. In the adjustment element 3 according to the second embodiment, the blocking occurs when the traction elements 50, 52, 54, 56, 58, 59 move in the direction of the first axial end 12.

[0142] Fig.11 and Fig.12 An adjusting element 5 according to a third exemplary embodiment is shown. Its overall structure corresponds to the first and second exemplary embodiments, so that the differences are again emphasized below.

[0143] Especially from Fig.11 As can be seen in the figure, the drive feature 30 is an external drive feature 30. However, it is not in the form of a hexagonal head as in the second embodiment, but in the form of a flat cross section at the radially outer side of the flange 16. Here, it is particularly emphasized that any non-circular feature that allows a mating connection with a corresponding tool can be used as a drive feature, whether it is arranged on the outside or on the inside.

[0144] On the radially inner side of the hollow cylindrical body 10, a plurality of webs 40, in particular three webs 40, are provided, which represent a plurality of radially inwardly extending protrusions 36. Thus, each web 40 extends parallel to the longitudinal axis and has a defined circumferential extension on the inner side of the hollow cylindrical body 10. Thus, the traction element 50, 52, 54, 56, 58, 59 inserted into the receiving portion 32 is prevented from rotating in the receiving portion 32 relative to the adjustment element 5 over a full circle, in particular by the edges of the webs 40.

[0145] Furthermore, there is no axial extension. Instead, each web 40 comprises an undercut 44 as a further axial stop, which is formed at the web 40 adjacent to the first axial end 12. In other words, the undercut 44 is present at the side of the radially inwardly extending projection 36 opposite to the shoulder 42. More generally, preferably, a further shoulder or undercut 44 is provided in or adjacent to the receiving portion 32, which is arranged opposite to the at least one shoulder 42. Such an undercut 44 or a further shoulder may be provided at the radially inwardly extending projection 36, such as Fig.11 and 12 As shown, or separated from the radially inwardly extending projection 36. The distance between at least one shoulder 42 and the other shoulder or undercut 44 at the transition between the receiving portion 32 and the centering portion 34 is greater than the axial extension of the traction element 50, 52, 54, 56, 58, 59 to be received or inserted. In this way, the receiving portion 32 forms a receiving cavity in which the traction element 50, 52, 54, 56, 58, 59 can be held in both axial directions in a form-fitting manner.

[0146] Next reference Fig.13 and Fig.14 , discuss the traction element 50 according to the first embodiment. The traction element 50 has two end sides 60 in the circumferential direction and is formed by a spring sheet. Therefore, there is a gap in the wall forming the traction element 50. By this gap between the two end sides 60, the traction element 50 is variable so that it can be slightly compressed for insertion into the receiving cavity or receiving part 32 of the adjustment element 1, 3, 5, 7. On the other hand, it can be slightly extended by the fastening screw 90 entering the traction element 50. The advantage of using a spring sheet for the traction element 50 is that the traction element 50 can be reused because metal is used for the spring element 50. In addition, the design of the traction element 50 can be easily produced and therefore the traction element 50 is low-cost.

[0147] Furthermore, the traction element 50 comprises two radially outwardly extending protrusions 62. One radially outwardly extending protrusion 62 is formed at one end side 60, while the other radially outwardly extending protrusion 62 is formed on the other end side 60. It can be seen that the radially outwardly extending protrusion 62 at the end side 60 is rounded so that the traction element 50 can be better inserted into the adjustment element 1, 3, 5, 7. In use, the radially outwardly extending protrusion 62 engages with at least one radially inwardly extending protrusion 36 of the adjustment element 1, 3, 5, 7, thereby inhibiting at least a full rotation of the traction element 50 relative to the adjustment element 1, 3, 5, 7. Since the curvature of the end side 60 for forming the radially outwardly extending protrusion 62 is less than 90°, preferably less than 45°, the outwardly extending protrusion 62 prevents the traction element 50 from rotating in the opposite rotational direction relative to the adjustment element 1, 3, 5, 7.

[0148] according to Fig.13 and Fig.14 , the end sides 60 of the traction elements 50 are arranged in an overlapping manner in the circumferential direction. In other words, the gap between the end sides 60 has an S-shape. Such a configuration can be produced by stamping or punching the traction element 50 from a spring sheet and then bending it into the desired configuration. Due to the resulting symmetrical design of the traction element 50, the assembly process, i.e. the process of inserting the traction element 50 into the adjustment element 1, 3, 5, 7, is simplified.

[0149] Finally, the traction element 50 comprises a plurality of edges 64, in particular due to the triangular shape of the traction element 50 when viewed from above. Thus, the traction element 50 has three edges 64, each edge 64 enclosing an angle of 120°. Depending on the design of the adjustment elements 1, 3, 5, 7, each of these edges 64 provides a further rotation-restraining effect. In particular, due to the edges 64, this configuration provides an additional support structure, which enables an additional form-fitting connection with the radially outwardly extending protrusions 36 at the inner side of the hollow cylindrical body 10.

[0150] The edges 64 are connected to each other by the protrusions 66. Since the protrusions 66 realize the pulling function in combination with the fastening screws 90, a separate pulling arm is not required compared to the prior art.

[0151] Therefore, the traction element 50 provides a friction connection with the fastening screw 90 on the one hand, and is fixed by a form-fit connection on the other hand to at least prevent rotation relative to the adjustment element 1, 3, 5, 7 in the receiving part 32. The rotation of the fastening screw 90 is reliably ensured to be transmitted to the adjustment element 1, 3, 5, 7.

[0152] Reference now Figures 15 to 21 , illustrating the combination of the adjustment element 1 according to the first embodiment and the above-mentioned traction element 50, for which, Fig.15 An exploded view is shown.

[0153] After the traction element 50 has been inserted into the receiving portion 32, the axial extension 28 is deformed, such as Fig.16a and Fig.16b Thus, the traction element 50 is held by a form fit in the axial direction towards the first axial end 12 and the second axial end 14 and is secured against rotation relative to the adjustment element 1. For the form fit in the axial direction towards the second axial end 14, refer to Fig.17a and Fig.17b sectional view of . Fig.18 The adjusting element 1 with the traction element 50 is shown in a complete sectional view.

[0154] Figures 19 to 21An adjusting element 1 comprising a traction element 50 is shown, wherein the adjacent second axial end 14 ( Fig.19 and Fig.21 ) or adjacent to the centering portion 34 ( Fig. 20 ) have been cut away. These figures show in detail how a positive connection is established between the traction element 50 and the plurality of ribs 38.

[0155] Figure 22 to Figure 28 The combination of the adjustment element 3 according to the second embodiment and the above-mentioned traction element 50 is shown. Fig. 22 An exploded view is shown.

[0156] Likewise, after the traction element 50 has been inserted into the receiving portion 32, the axial extension 28 is deformed, such as Fig.23 As shown. Therefore, the traction element 50 is held by a form fit in the axial direction towards the first axial end 12 and the second axial end 14 and is fixed to prevent rotation relative to the adjustment element 3. For the form fit in the axial direction towards the second axial end 14, please refer to Fig.24a and 24b sectional view of . Fig.25 The adjustment element 3 with the traction element 50 is shown in a complete sectional view.

[0157] Figure 26 to Figure 28 An adjusting element 1 comprising a traction element 50 is shown, wherein the adjacent centering portion 34 ( Fig.26 and Fig.28 ) or adjacent flange 16 ( Fig.27a and Figure 27b ) have been cut away. These figures show in detail how the adjustment element 3 according to the second exemplary embodiment establishes a positive connection between the traction element 50 and the plurality of ribs 38 .

[0158] The combination of the traction element 50 and the adjustment element 5 according to the third embodiment is Fig.29 and Fig.30 4. Here, the rotation of the traction element 50 relative to the adjustment element 5 is blocked when the radially outwardly extending projection 62 abuts at the edge of the adjacent web 40. The edge 64 of the traction element 50 is arranged to abut against the corresponding web 40. The axial displacement of the traction element 50 in the receiving portion 32 is limited on the one hand by the shoulder 42 and on the other hand by the undercut 44 present on the opposite side of the web 40.

[0159] refer to Figures 31 to 39 , illustrating a first embodiment of a connection structure using an adjustment element 7 according to a fourth embodiment. The adjustment element 7 according to the fourth embodiment mainly corresponds to the adjustment element 3 according to the second embodiment, except that a different outer drive feature 30 is used.

[0160] First, a blind rivet nut 80 having a first internal thread 82 in a first thread direction and a second internal thread in a second thread direction opposite to the first thread direction is fastened in the opening of the first component A. It should be noted that the blind rivet nut 80 is fastened in the first component A, and the adjusting element 7 has not yet been screwed into it. Therefore, the first internal thread 82 is provided at the first component A.

[0161] Next, the adjusting element 7 is screwed into the blind rivet nut 80 using a tool that engages the drive feature 30. This can be done, for example, at a first construction site or company. If the first component A with the screwed-in adjusting element 7 must be transported to a second construction site or company, the adjusting element 7 is locked in the first internal thread before transport. This can be achieved by the first unthreaded section 24, since the adjusting element 7 can be screwed tightly into the blind rivet nut 80.

[0162] After transport, the adjusting element 7 is unlocked accordingly by unscrewing the adjusting element 7 out of the first internal thread 82 , so that a small gap exists between the underside 20 of the flange 16 and the first component A.

[0163] Thereafter, the second component B is arranged at a distance from the first component A, wherein the second opening in the second component is aligned with the longitudinal axis of the adjustment element 7. This state is Fig.32 and Fig.33 Shown in.

[0164] Subsequently, a fastening screw 90 having a second external thread in a second thread direction opposite to the first thread direction is inserted through the second component to engage with the traction element 50 . Fig.34 and Fig.35 This state is shown.

[0165] Now, the tightening screw 90 is turned until the flange 16 of the adjusting element 7 abuts against the second part B, as shown in FIG. Fig.36 and Fig.37 shown.

[0166] Further rotation of the fastening screw 90 causes the fastening screw 90 to engage with the second internal thread 84 having a second thread direction, which is also provided by the blind rivet nut 80. In the tightened state of the fastening screw 90, a washer 92 arranged under the head of the fastening screw 90 is arranged at the second component B. The fastening screw 90 extends through the second component B and the adjustment element 7 abuts at the second component B. In other words, the adjustment element 7 has been displaced in the direction opposite to the insertion direction of the fastening screw 90.

[0167] Reference now Figures 40 to 48 , a second embodiment of a connection structure using the adjustment element 1 according to the first embodiment is described.

[0168] Here, the adjusting element 1 with the traction element 50 is screwed directly into the first component A, which provides the first internal thread 82, by means of a tool engaged at the drive feature 30. This can be done, for example, at a first construction site or company. If the first component A with the screwed-in adjusting element 1 must be transported to a second construction site or company, the adjusting element 1 is locked in the first internal thread 82 before transport. This can be achieved by means of the first unthreaded portion 24, since the adjusting element 1 can be screwed tightly into the first component A.

[0169] After transport, the adjusting element 1 is unlocked accordingly by unscrewing the adjusting element 1 out of the first internal thread 82 , so that a small gap exists between the underside 20 of the flange 16 and the first component A.

[0170] Thereafter, the second component B is arranged at a distance from the first component A, wherein the second opening in the second component B is aligned with the longitudinal axis of the adjusting element 1. This state is Fig.41 and Fig.42 Shown in.

[0171] Subsequently, a fastening screw 90 having a second external thread in a second thread direction opposite to the first thread direction is inserted through the first component A to engage with the traction element 50 . Fig.43 and Fig.44 This state is shown.

[0172] Now, turn the tightening screw 90 until the flange 16 of the adjusting element 1 abuts against the second part B, as shown in FIG. Fig.45 and 46 shown.

[0173] Further rotation of the fastening screw 90 causes the fastening screw 90 to engage with the second internal thread 84 having a second thread direction. In this embodiment, the second internal thread 84 is provided directly by the second component B. In the tightened state of the fastening screw 90, a washer 92 arranged under the head of the fastening screw 90 is arranged at the first component A. The fastening screw 90 extends through the first component A and the adjustment element 1 abuts at the second component B. In other words, the adjustment element 1 has been displaced in the insertion direction of the fastening screw 90 and the fastening screw 90 has been fastened on the second component B.

[0174] Reference now Figures 49 to 52 , several additional embodiments of traction elements 52, 54, 56, 58 are shown. Fig.49 In the second embodiment 52 shown, the basic structure of the traction element 52 corresponds to the structure of the traction element 50 according to the first embodiment. However, instead of a convex portion of the connecting edge 64, a plurality of angled straight portions 68 in the circumferential direction are used.

[0175] In such Fig.50In the third embodiment shown, the traction element 54 does not use two overlapping end sides 60. Therefore, the two end sides 60 are arranged opposite each other in the circumferential direction. Each end side 60 has a radially outwardly extending protrusion 62. In addition, the traction element 54 includes two edges 64, wherein the edges and the end sides 60 are connected to each other by a generally convex portion, as discussed in accordance with the traction element 50 of the first embodiment.

[0176] Fig.51 A traction element 56 according to a fourth embodiment is shown. Here, the overall structure is circular with two end sides 60. The end sides 60 overlap each other in the circumferential direction at least due to the radially outwardly extending projections 62. In addition, a traction arm 70 is provided to achieve the traction function.

[0177] Fig.52 A traction element 58 according to a fifth embodiment is shown. This traction element 58 also has a round structure and comprises a traction arm 70 for realizing the traction function. No radially outwardly extending projections are provided on the end side 60. In order to achieve a positive connection with the receiving cavity 32 of the adjustment element 1, 3, 5, 7, the radially outwardly extending projections 62 are arranged at a certain distance from the end side 60 in the circumferential direction.

[0178] at last, Fig.53 A traction element 59 according to a sixth embodiment is shown. The basic structure of the traction element 59 corresponds to the structure of the traction element 50 according to the first embodiment. However, in contrast to the first embodiment, the end side 60 is not provided with a radially outwardly extending projection. As a result, the radially outwardly extending projection 62 is provided only by the edge 64.

[0179] The schematic process of manufacturing the traction elements 50, 52, 54, 56, 58, 59 is as follows: Fig.54 In a first step i, a spring sheet is provided, from which, in a second step ii, traction elements 50, 52, 54, 56, 58, 59 are formed (for example by stamping or punching and subsequent bending).

[0180] Fig.55: is a schematic flow chart of an embodiment of a method for manufacturing an adjusting element 1, 3, 5, 7 of the present invention. The method comprises step a: cold forming or cold working an adjusting element 1, 3, 5, 7 having the features of an embodiment of the present invention. At the same time, before or after the first step a, a spring sheet is provided in step b1 and a traction element 50, 52, 54, 56, 58, 59 is formed from the spring sheet in step b2. Thereafter, the formed traction element 50, 52, 54, 56, 58, 59 is inserted into the interior of the adjusting element 1, 3, 5, 7 in step c. Furthermore, in the case where the adjusting element 1, 3, 5, 7 initially comprises an axial extension at the first axial end 12 or the second axial end 14 of the hollow cylindrical body 10, in step d the axial extension 28 is at least partially deformed so as to form another shoulder or undercut 44 as a further axial stop to hold the traction element 50, 52, 54, 56, 58, 59 in the adjusting element 1, 3, 5, 7. The deformation step d is performed, for example, by crimping a portion of the axial extension 28 or applying a punch, which results in the desired deformation.

[0181] refer to Fig.56 , illustrates a schematic process of an embodiment of a connection method for connecting a first component A and a second component B at a certain distance. In a first step A, a first component of the present invention is provided, which includes an adjustment element 1, 3, 5, 7 of the present invention, which is screwed into a first internal thread 82 provided in or at the first component A and has a traction element 50, 52, 54, 56, 58, 59 as an independent element. This step A includes step A1: providing an adjustment element 1, 3, 5, 7 of the present invention, which includes a traction element 50, 52, 54, 56, 58, 59 as an independent element. Further, this first step A includes step A2: screwing the adjustment element 1, 3, 5, 7 into the first internal thread 82 with a first thread direction provided at the first component A through the drive feature 30. If necessary, for example, if the first component A with the screwed-in adjusting element 1, 3, 5, 7 is to be transported to a different construction site or company, the adjusting element 1, 3, 5, 7 is screwed into the first internal thread 82 and locked therein, as described above. Thus, when arriving at the different construction site or company, the adjusting element 1, 3, 5, 7 must be unlocked before the connection method can continue.

[0182] In the following, it will be distinguished whether the second internal thread 84 is provided at the first component A or at the second component B. If the second internal thread 84 is provided at the second component B, the next step B1 is to insert a fastening screw 90 through the first component A to engage with the traction element 50, 52, 54, 56, 58, 59, rotate B2 the fastening screw 90 until the flange 16 of the adjustment element 1, 3, 5, 7 abuts against the second component B, and screw the fastening screw 90 into B3 the second internal thread 84 which has a second thread direction opposite to the first thread direction and is provided at the second component B.

[0183] Alternatively, in the case where the second internal thread 84 is provided at the first component A (for example by means of a blind rivet nut 80), in an alternative step C1 a fastening screw 90 is inserted through the second component B to engage with the traction elements 50, 52, 54, 56, 58, 59, in a step C2 the fastening screw 90 is rotated until the flange 16 of the adjustment element 1, 3, 5, 7 abuts against the second component B, and in a step C3 the fastening screw 90 is screwed into the second internal thread 84 which has a second thread direction opposite to the first thread direction and is provided at the first component A.

[0184] Reference numerals list

[0185] 1 adjusting element (first embodiment); 3 adjusting element (second embodiment); 5 adjusting element (third embodiment); 7 adjusting element (fourth embodiment); 10 hollow cylindrical body; 12 first axial end; 14 second axial end; 16 flange; 18 upper side; 20 lower side; 22 external thread; 24 first non-threaded portion; 26 second non-threaded portion; 28 axial extension; 30 driving feature; 32 receiving portion; 34 centering portion; 36 radially inwardly extending protrusion; 38 rib; 40 web; 42 shoulder; 44 undercut; 50 Pulling element (first embodiment); 52 pulling element (second embodiment); 54 pulling element (third embodiment); 56 pulling element (fourth embodiment); 58 pulling element (fifth embodiment); 59 pulling element (sixth embodiment); 60 end side; 62 radially outwardly extending protrusion; 64 edge of the pulling element; 66 convex portion; 68 angled straight portion; 70 pulling arm; 80 blind rivet nut; 82 first internal thread; 84 second internal thread; 90 fastening screw; 92 washer; A first component; B second component.

Claims

1. An adjustment element (1, 3, 5, 7) formed as a single piece for compensating for distance tolerances between a first component (A) and a second component (B), wherein the adjustment element (1, 3, 5, 7) comprises: a. a hollow cylindrical body (10) having a radially outwardly extending flange (16) adjacent to a first axial end (12) and an external thread (22) located radially outwardly in a first thread direction, b. a receiving portion (32) located radially inside the hollow cylindrical body (10), in which a traction element (50, 52, 54, 56, 58, 59) is to be received, wherein the receiving portion (32) comprises at least one radially inwardly extending protrusion (36), the at least one radially inwardly extending protrusion (36) being located radially inside the hollow cylindrical body (10), and c. At least one shoulder (42) extending circumferentially at the radial inner side and providing axial limitation, characterized in that the adjustment element (1, 3, 5, 7) d. Made of metal e. comprising a drive feature (30) adapted to be connected in a form-fitting manner to a tool so that the adjustment element (1, 3, 5, 7) can be rotated by the tool, wherein f. The at least one radially inwardly extending protrusion (36) at the radial inner side of the hollow cylindrical body (10) is suitable for being connected with the traction element (50, 52, 54, 56, 58, 59) in a form-fitting manner, thereby preventing the traction element (50, 52, 54, 56, 58, 59) inserted into the receiving portion (32) from rotating within the receiving portion (32) relative to the adjustment element (1, 3, 5, 7) throughout a circle.

2. An adjustment element (1, 3, 5, 7) according to claim 1, comprising a plurality of radially inwardly extending protrusions (36) formed by a plurality of axially extending ribs (38).

3. The adjusting element (1, 3, 5, 7) according to any one of the preceding claims, wherein The at least one radially inwardly extending projection (36) is arranged a. adjacent to the first axial end (12) of the hollow cylindrical body (10) or b. adjacent to the second axial end (14) of the hollow cylindrical body (10).

4. The adjustment element (1, 3, 5, 7) according to claim 1, further comprising the traction element (50, 52, 54, 56, 58, 59), wherein the traction element (50, 52, 54, 56, 58, 59) has at least one radially outwardly extending protrusion (62), and the at least one radially outwardly extending protrusion (62) engages with the at least one radially inwardly extending protrusion (36) on the radial inner side of the hollow cylindrical body (10), so that at least the traction element (50, 52, 54, 56, 58, 59) is inhibited from rotating a full circle relative to the adjustment element (1, 3, 5, 7).

5. The regulating element (1, 3, 5, 7) according to claim 4, wherein: The traction element (50, 52, 54, 56, 58, 59) comprises two end sides (60) in the circumferential direction and / or is formed by a spring leaf.

6. The regulating element (1, 3, 5, 7) according to claim 4 or 5, wherein: The traction element (58, 59) comprises two end sides (60) in the circumferential direction, and at least one radially outwardly extending protrusion (62) of the traction element (58, 59) is arranged at a distance from the end sides (60) in the circumferential direction.

7. The regulating element (1, 3, 5, 7) according to claim 4 or 5, wherein: The traction element (50, 52, 54, 56) comprises two end sides (60) in the circumferential direction, and at least one end side (60) comprises the at least one protrusion (62) extending radially outward.

8. The regulating element (1, 3, 5, 7) according to claim 4 or 5, wherein: The traction element (50, 52, 59) comprises two end sides (60) along the circumferential direction, and the two end sides (60) are arranged overlapping in the circumferential direction.

9. The regulating element (1, 3, 5, 7) according to claim 4 or 5, wherein: The traction element (50, 52, 54, 59) includes a plurality of edges (64).

10. The regulating element (1, 3, 5, 7) according to any one of claims 1, 2, 4 or 5, wherein The drive feature (30) is disposed adjacent to the first axial end (12) of the hollow cylindrical body (10) and is an internal drive feature (30) and / or an external drive feature (30).

11. A first component (A) providing a first internal thread (82) of a first thread direction, wherein an adjustment element (1, 3, 5, 7) according to any one of claims 1 to 10 is screwed into the first internal thread (82), and the adjustment element (1, 3, 5, 7) comprises the traction element (50, 52, 54, 56, 58, 59) as a separate element.

12. The first component (A) according to claim 11, wherein The first internal thread (82) is a. directly disposed in the first component (A), or b. provided by a separate element fastened in an opening of said first part (A).

13. A connection structure, comprising a first component (A) according to claim 11 or 12, a second component (B) arranged at a certain distance from the first component (A), and a fastening screw (90), wherein a. The first internal thread (82) is directly disposed in the first component (A), and b. The second component (B) is provided with a second internal thread (84) having a second thread direction opposite to the first thread direction, so that c. the fastening screw (90) extends through the first component (A) and the adjusting element (1, 3, 5, 7) at least partially arranged in the first component (A) and is fastened in the second internal thread (84) at the second component (B).

14. A connection structure, comprising a first component (A) according to claim 11 or 12, a second component (B) arranged at a certain distance from the first component (A), and a fastening screw (90), wherein a. The first internal thread (82) and the second internal thread (84) are arranged at the first component (A), so that b. The fastening screw (90) extends through the second component (B) and the adjustment element (1, 3, 5, 7) abutting against the second component (B) and is fastened in the second internal thread (84) at the first component (A).

15. A method for manufacturing an adjustment element (1, 3, 5, 7) according to any one of claims 1 to 10, comprising the following steps: Step a: cold forming or cold working the adjustment element (1, 3, 5, 7) according to claim 1.

16. The manufacturing method according to claim 15, further comprising the following steps: Step b1: Provide a spring sheet and Step b2: forming a traction element (50, 52, 54, 56, 58, 59) from the spring sheet, and Step c: inserting the formed pulling element (50, 52, 54, 56, 58, 59) into the interior of the adjusting element (1, 3, 5, 7).

17. A connection method for connecting a first component (A) and a second component (B) at a certain distance, wherein: The connection method comprises the following steps: Step A: Providing a first component (A) according to claim 11, and Step B1: inserting a fastening screw (90) through the first component (A) to engage with the traction element (50, 52, 54, 56, 58, 59), Step B2: Rotate the fastening screw (90) until the flange (16) of the adjusting element (1, 3, 5, 7) abuts against the second component (B), and Step B3: Screw the fastening screw (90) into a second internal thread (84), wherein the second internal thread (84) has a second thread direction opposite to the first thread direction and is disposed at the second component (B), or Step C1: inserting a fastening screw (90) through the second component (B) to engage with the traction element (50, 52, 54, 56, 58, 59), Step C2: Rotate the fastening screw (90) until the flange (16) of the adjusting element (1, 3, 5, 7) abuts against the second component (B), and Step C3: Screw the fastening screw (90) into a second internal thread (84), wherein the second internal thread (84) has a second thread direction opposite to the first thread direction and is disposed at the first component (A).

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