DE102018007072A1 - Central locking system with rim - Google Patents

Abstract

The invention relates to a system (1) comprising a rim (2) with a central locking system (3), the rim (2) not having a bolt circle for wheel bolts (9) for attachment to a wheel hub, but a central hole for attachment to the wheel hub also has the rim (2), which is preferably a forged rim (2) made of an aluminum or magnesium material, the central locking system (3), a central locking nut (4) and a web shop therefor. The components are coordinated. For example, the central locking nut has a two-part design that allows an increase in the tightening torque for a central locking. An adapter plate is designed to match this, as is a rim. In particular, the invention also makes it possible to use the same rim on different vehicles by adapting each adapter plate to different vehicles by means of different adapter plates for different vehicles, without having to operate an increased amount of testing.

Description

The present invention relates to a system comprising a rim with a central locking system, the rim not having a bolt circle for wheel bolts for fastening to a wheel hub, but rather has a central bore for fastening to the wheel hub. Furthermore, a central locking system belonging to the system, an associated central locking nut, an adapter plate and an associated rim are proposed in each case. A web shop adapted to the system is also proposed.

Various central locking systems which are used in racing cars are known from the prior art. These systems have a central hub on which a rim is placed and fastened directly adjacent to the brake disc by means of a central locking nut. Fastening rims with a bolt circle is not possible with these central locking systems. For vehicles with road approval, on the other hand, there are systems on the market which, by means of an adapter, enable the use of a central locking system on wheel hubs with a bolt circle. Here it is necessary to choose an adapter adapted to the bolt circle for each vehicle as well as a rim suitable for the respective adapter and the vehicle.

The object of the present invention is to create a central locking system which on the one hand creates flexibility with regard to use on different vehicles and on the other hand offers safe use of the central locking system and its components.

This object is achieved with a system with the features of claim 1 having a rim and a central locking system, with a central locking system with the features of claim 4, with a central locking nut with the features of claim 6, with a rim with the features of claim 8 and with a web shop with the features of claim 10 solved. Advantageous refinements and developments emerge from the respective subsequent claims, the features emerging from the respective claims not being limited to these refinements. In particular, features that are described in relation to a component can also be used in other configurations of the invention. One or more features from the general description, the description of the figures and also from one or more figures themselves can also be combined with one another to form further configurations within the meaning of the invention. One or more features from the independent claims can also be supplemented and / or replaced with one or more features from the disclosure, since the independent claims only provide a first draft for describing the invention, but without wishing to restrict it.

A system is proposed, comprising a rim with a central locking system, the rim not having a bolt circle for wheel bolts for attachment to a wheel hub, but rather has a central bore for attachment to the wheel hub. The rim is preferably a forged rim made of an aluminum or magnesium material. The rim is particularly preferably in one piece. However, the central locking system can also be used with rims in which the rims are made of steel, an aluminum alloy and / or a magnesium alloy and / or another material and / or are composed of two or three parts.

The central locking system has a central locking nut and an adapter plate, the rim on the side facing the wheel hub having a plurality of openings, preferably closed bores, for receiving at least one driver, preferably one driver bolt. The central locking system has a first adapter plate for arrangement and attachment to a first wheel hub, and the first adapter plate has a first bolt circle with passages for receiving wheel bolts. The first adapter plate has the drivers that are complementary to the rim openings. The drivers are preferably connected to the adapter without play, particularly preferably by means of a press fit. You can also be materially connected to the adapter plate. The first adapter plate has a hollow cylinder centered through the central bore in the rim, preferably integrally connected to the adapter plate, which has an external thread which is complementary to an internal thread of the central locking nut. The hollow cylinder is preferably pot-shaped or open. The hollow cylinder has an inner cavity for the circumferential encasing of a wheel hub, preferably also for the front encasing, as is possible, for example, by means of a cup-shaped hollow cylinder. The hollow cylinder can be open-shaped so that a predominant end face of the hub is exposed on the end face, whereas, in the case of a cup-shaped hollow cylinder, this hub is covered on the end face. The central locking nut has an outer cone, the shape of which is complementary to an inner cone of the rim.

A further development provides that the adapter plate of the system has a circular base, from which the hollow cylinder extends into the rim, the base forming a clearance fit with the central bore, while the drivers make a clearance fit with the recesses in the rim. A centered attachment is preferably made possible, for example by using one or more conical sections, for example on the part of the base and / or the hollow bore. When inserting, self-centering takes place by means of the conical section or sections. In this case, conical centering at the inlets, in particular the closed bores, can also be provided for the drivers, in particular the driver bolts, which facilitate mounting of the rim.

In particular, the adapter plate is designed such that a center hole has a diameter between 76 mm and 83 mm, as a result of which a large number of passenger cars can be encased with their hub sizes. The inner geometry of the hollow bore of the base can also be conical, conical or as a truncated cone. However, particularly high accuracy can also be achieved by means of a cylindrical geometry.

A further embodiment has the adapter plate with a front side which has a first level from which the base rises directly, the base forming a second level which runs parallel to the first level, the passages for the in the first level Wheel bolts and through bores are arranged for the drivers, and the first level forms a rim contact surface for the rim, the rim having an adapter contact surface that is complementary to the rim contact surface, and the rim contact surface and the adapter contact surface lie against one another, and the base with the rim forms a pair on two mutually coaxial cylindrical surfaces, which form a centered positive connection in all directions of the plane perpendicular to a cylinder axis of the coaxial cylindrical surfaces.

It can also be provided that the adapter plate has a rear side, which is a flat plane, in which the passages for the wheel bolts, a plurality of through holes for the drivers and the opening in the inner cavity, of the pot-shaped hollow cylinder, are arranged, the inner cavity has a centered, continuous threaded hole in the pot-side end face for screwing the central locking nut and adapter plate.

The adapter plate is preferably made of aluminum. Another embodiment provides for the use of a magnesium alloy for the manufacture of the adapter. One embodiment provides that the adapter is made in one piece, preferably from a round blank or disk by machining processes, for example turning, drilling or milling. However, other manufacturing processes such as eroding or rolling can also be used for the thread. In addition to the above materials, other materials can also be used, for example lightweight steel, GRP or CFRP. The adapter can also be composed of several parts, for example the adapter plate can form one component and the hollow cylinder another component. These can be used together. This allows, for example, the use of different materials for the adapter. Different materials can also be used on the adapter in a different way. One embodiment provides that a sleeve for increasing the strength of the adapter is arranged in the hollow cylinder. The sleeve is preferably made of a different material than the rest of the adapter. The sleeve is preferably made of a stainless steel. But other materials can also be used. The sleeve can be screwed into the hollow bore of the hollow cylinder, for example. For this purpose, the hollow bore can have an internal thread and the sleeve can have a matching external thread. There is also the possibility of providing a clamp connection for the sleeve in the hollow bore. Again, there is the possibility of gluing, soldering or otherwise securing the sleeve in the hollow bore in such a way that an increase in tensile strength is achieved on the adapter between the adapter plate and the hollow cylinder serving as a draw bolt, preferably further between the adapter and the central locking nut the tensile strength increases.

A further development provides that the system is provided with a second adapter plate, which has a hole circle, different from the first bolt circle, for fastening to a second wheel hub, the drivers of the second adapter plate also being complementary to the rim openings. There is preferably a large number of different adapter plates, all of which have suitable drivers complementary to the inserts of a single rim. For example, by means of a system of different adapter plates, which are each adapted to one vehicle, a rim can thus be used on these different vehicles. In particular, taking into account the attainment of a general operating license, abbreviated ABE, or the use of a parts certificate for entry in a vehicle registration certificate and thus the approval of a rim for the vehicle belonging to the vehicle registration certificate, it is thus possible to combine a large number of individual adapters with a rim tested and saves a lot of testing, since this rim does not have to be individually tested and approved for every vehicle. Rather, a test containing strength calculations and the appropriate adaptation of the adapter plate to the vehicle is sufficient. The same applies to that Central locking system or the central locking nut. Once designed, tested and approved accordingly, the central locking system or the central locking nut can be used on all vehicles in road traffic, for example via the respective parts certificate.

For example, a system can also be provided in which the tightened central locking nut is completely surrounded by the rim below a rim end face and an end cover of the cup-shaped hollow cylinder, which is inserted into a central locking nut end face, then also remains below the rim end face.

According to a further idea of the invention, which can stand alone as well as in combination with the other ideas of the invention, a central locking system for a system as described above and also below is described or illustrated, wherein the central locking system has a central locking nut and an adapter plate, wherein the adapter plate has a cylindrical hollow cylinder, preferably a cup-shaped, cylindrical hollow cylinder, and an external thread extends along an outer circumference of the hollow cylinder, preferably along the entire outer circumference of the hollow cylinder, while the central locking nut has an internal thread that is complementary to the external thread, the internal thread preferably being at least approximately extends over the entire inner length of the central locking nut.

There is the possibility that the central locking nut has an internal thread, which, for example, does not extend approximately over the entire inner length. Rather, the internal thread can also be shorter. It can start directly at the opening of the threaded nut, but can also be at a distance from it. It can also stop before one end of a hole, that is, end at some distance from the end of the hole. For example, the central locking nut can have fewer than ten thread turns, in particular six or less than six thread turns, but more than three thread turns as the internal thread. The central locking nut can have a space before and / or after the thread turns. On the one hand, it is possible to achieve sufficient fastening. On the other hand, this also allows a further design of an interior of the central locking nut, for example with a marking. Furthermore, it can be provided that not only one thread is present, but two or three threads. It can also be provided that a self-locking thread is used.

A further development of the central locking system provides that an end face of the pot-shaped hollow cylinder of the adapter plate forms a plane that runs parallel to an end face of the central locking nut, wherein preferably a centered locking screw for securing the central locking nut to the adapter plate can be screwed into the end face of the pot-shaped hollow cylinder. It can also be provided that a thread direction of the locking screw is opposite to a thread direction of the internal thread of the central locking nut.

A further embodiment provides that the central locking nut holds the rim in its position solely by means of the tightening torque and the acting thread without any additional securing. For example, a high-strength screw connection can also be used.

Instead of a pot-shaped end face, which is surrounded by the central locking nut, the hollow cylinder can also have a partially open or completely open end face there. There is also the possibility that the hollow cylinder has a completely closed end face, in particular a pot-shaped end face.

According to an additional idea, which can stand alone as well as in combination with the other ideas of the invention, a central locking nut is proposed for a system with a rim with central locking system as described and / or described above or below, in which the central locking nut has a cylindrical Shape, preferably has a cup-shaped, cylindrical shape with an end face, the central locking nut being in two parts, a first part of the central locking nut having the end face and the cup-shaped, cylindrical shape, and a second part of the central locking nut having an annular shape, the second part over the first part is arranged to be movable up to a stop from the end of the central locking nut opposite the end, the stop being arranged as a circumferential collar on the first part and preventing further movement of the second part in the direction of the end, the first Part protrudes through the ring shape of the second part and the second part has a conical bearing surface for the rim.

A further development of the central locking nut provides that the second part is screwed to the first part. It is preferred if the screw connection of the first and second part is designed as a non-detachable screw connection. A captive screw connection is created, for example, in that the first and the second part each have a different one from the other Screw geometry is provided. For example, the first part can have a different slope than the second part, but the two slopes are such that both parts can be screwed together with force. Another embodiment of a captive screw connection provides that, for example, the inner bore having the thread of the second part is provided with an oversize. Both parts can be screwed together. By screwing into an open area of the first part, however, the two parts lose their contact again, which had previously been ensured by screwing. The second part can move in the free area, preferably not only along an extension of the first part, in particular the cup-shaped, cylindrical shape. Rather, it is further preferred if the second part, in particular in a ring shape, can be rotated around the first part. The two parts thus remain secured to one another. However, loosening is prevented since screwing back is not possible without further ado. By dimensioning the open area to match the possible play when assembling the central locking nut and rim, the range of motion can be limited to what is necessary. Within the open area, both parts are seated on top of one another on predefined, mutually compatible surfaces.

A further possibility of creating a captivity between the first and the second component can be, for example, that one of the two parts is subjected to a deformation force after and / or during assembly. For example, the second part, after being slipped over the first part, is subjected to a force, for example an assembly force during assembly with the rim. Since the second part has the conical bearing surface for the rim, a deformation force can be exerted on the ring shape of the second part, for example during assembly. This causes such a deformation on the second part that a lock forms on the second part, preferably a lock that forms in the free space that prevents the second part from being removed from the first part. Again, it can be provided that a loss cannot be lost by flanging an edge. For example, flanging can take place on the hollow cylinder after assembly of the second part, so that the second part, in particular in the form of an annular disc with a conical shape or as an annular conical section, is at least secured, in particular also held, in position. It can also be provided that the hollow cylinder is expanded after the second part is slipped on. This prevents or makes it difficult to remove or lose the second part.

There is also the possibility that the second part is shrunk onto the first part. For this purpose, for example, the second part can be heated before it is slipped onto or screwed onto the first part. It is also possible to cool the first part before the second part is put on. Likewise, the first part can be cooled and the second part can be heated before being slipped on or screwed on.

Further designs can, for example, provide one or more fuses which secure the second part captively on the first part. For this purpose, the use of additional plastic, for example, in a screw connection between the first and second part, of adhesive or some other fuse can be provided.

According to an embodiment after assembly, the first and the second part can only be separated from one another by destroying the second, annular part if they are to be disassembled.

A further embodiment provides that, for example, the second, in particular annular, part is interchangeable. Due to the pressure acting when assembling the system, but also in long-term operation, wear or damage can occur. The interchangeability allows the central locking system to continue to be used and the system to be repairable.

The central locking nut consisting of two components is preferably constructed in such a way that a conical bearing surface of the second part for the rim provides a larger friction surface than a contact surface between the first part and the second part in the state of the central locking nut on the rim which can be tightened with a torque. Regarding the latter, it is meant that the first and second parts are in contact with each other due to the torque tightening. The contact surface can also be determined if the second part is pressed firmly onto the first part and then the friction surface generated in the process between the first and second part is determined. The friction surface between the rim and the second part results from the conically shaped surface of the second part, which sits on the rim.

The second part, designed for example as a cone ring, remains more attached to the rim when tightened by means of a torque generator. When the central locking nut is tightened, a relative movement between the rim and the second part stops rather than a relative movement between the first and second part stops. For example, it can be provided that the surfaces that come into contact with one another have different roughnesses. There is also the possibility that by means of Surface geometries such as knobs, embossings, corrugations or other influences on the contacting surfaces on the friction and / or the transmission of the torque.

Furthermore, it can be provided that the central locking nut is made from different materials. For example, the first part can be made of a different material than the second part. These different materials can include, for example, steel, in particular stainless steel, preferably high-strength steel, a magnesium alloy, an aluminum alloy and also another lightweight construction material. Different materials such as different aluminum or magnesium alloys can also be used. By using different materials, the friction between the first by the second part on the one hand and the rim and the second part on the other can be influenced. If the central locking nut consists of only one material, one of the aforementioned can preferably be used. Furthermore, it can be provided that the adapter plate consists of the same material as the central locking nut, for example an aluminum alloy or a magnesium alloy. Particularly in the case of lightweight materials that are used for the adapter, an increase in the rigidity of the adapter can be arranged in the hollow cylinder by means of a sleeve made of another material, in particular a stiffer material, preferably a highly rigid material.

The central locking nut as a two-part central locking nut is to be understood in such a way that only a first and a second part is provided, the second part being provided in a ring with a conical surface for the rim. The first part can itself consist of two or more components. For example, the collar can be a component of the first part that has been fastened. Furthermore, there is the possibility that a closure cap is inserted on the end face into the first part of the closure nut, in particular for covering an open hollow cylinder or for covering a locking screw. For example, the central locking nut can have an open end face or an at least approximately closed end face. The closure flap can then be introduced onto or into this, for example by clipping in, screwing in, pressing in or in some other way.

According to a further embodiment of the invention, which can stand alone as well as in combination with the other ideas of the invention, a rim is proposed, preferably a one-piece forged rim made of an aluminum material, in particular a rim for use with a system disclosed here and / or with a central locking system disclosed here and / or with a central locking nut disclosed here, the rim preferably being a one-piece forged rim made of an aluminum-based or magnesium-based material, with a support surface complementary to a central locking nut in the form of an inner cone, with struts that run from the outside inwards and form an axially arranged star, the star having the inner cone and recesses for drivers on an inner, flat adapter contact surface, the struts running at least partially inwards into the rim, so that the star moves inwards t is arranged within the rim, and the rim has no bolt circle for wheel bolts for attachment to a wheel hub.

The rim preferably has a design in which the spokes or struts run inwards until they abut the star, the star having a size or a diameter such that the adapter plate is not visible when the rim is mounted. The spokes or struts can have different geometries, directions, geometries, curvatures or other. The star preferably completely covers the adapter plate. This prevents, for example, dirt from settling between the rim and the adapter plate. Open areas in the adapter plate are preferably thereby covered, in particular closed. In addition to the use of rims with a star and spokes or struts, disc wheels and combinations of discs and spokes or struts can also be used. Other shapes for rims are also possible.

Furthermore, it can be provided that the rim has a design in which the design shape is convex or concave, i.e. that the struts follow such a shape. Provision can also be made for the center of the wheel and thus the star to have a significantly smaller diameter than a commercially available rim with a screw connection via a bolt circle. The adapter in its area to be covered by the rim, in particular on the rim, can also have a smaller diameter than a commercially available adapter for a rim of comparable size with a bolt circle.

The use of a forged rim made of an aluminum material or a magnesium material has several advantages. A significant difference is the weight saving not only compared to steel rims but also compared to cast rims. Forged rims can be several kilograms lighter than cast rims of the same geometry. Another advantage of the resulting lower weight relates to its influence in the area of design, for example taking into account mass, Mass ratios, inertia and stiffness in, for example, an oscillatable system. It can be used to influence the suspension. The high strength of dynamic undercarriages is particularly helpful, which means that the rims can better counteract the unsprung masses.

Another advantage of a forged rim is the uniform mechanical and physical properties, which are evenly distributed due to the manufacturing process. If the forged rim is designed, this allows rigid constructions to be achieved with thinner walls. Compared to cast rims, the higher strength values also allow constructions that would otherwise not be possible with cast rims. A lower rotational moment and thus a lower inertia compared to other rim materials is possible. Especially in sports cars, but also in other high-torque vehicles, these properties of the rim can be used to achieve faster braking, less wear on the braking system, better acceleration behavior and lower consumption.

Alloys such as AZ 80A, AZ 91 or EN AW 6082 can be used for one-piece rims, especially forged rims, but also multi-piece rims. The use of aluminum-magnesium-silicon alloys (AIMgS.i) allows heat treatment to increase strength and hardness. The formation of magnesium silicide (Mg ₂ Si) to increase the hardness, as occurs in the 6000 series of wrought aluminum alloys, makes the use of this material group advantageous in the manufacture of rims from forged material, provided that heat treatment is provided. In particular, the material EN AW 6061 can be used as the forged material. T4 or T6 can be used as the degree of hardness, depending on the application, a specific hardness setting can be selected.

According to a further embodiment, however, a rim can also be used which is made of steel, an aluminum alloy and / or a magnesium alloy and / or is composed of two or three parts. For example, a three-piece rim can have a forged star, a molded inner part, and a rotationally rolled outer bed. As a material for a multi-part rim, for example, a combination can be provided as follows: the star made of EN AW-6082, the inner part made of AI Si 7 MG and the outer bed made of corrosion-resistant EN AW-6082. Other combinations of materials can also be used. A two-part rim can have, for example, a part made of an aluminum material and a part made of a magnesium material.

Cast rims can also be used, preferably produced by means of a low-pressure casting process in which the liquid alloy rises in the mold from below. Preferred casting alloys can be G-AISi10Cu or G-AISi7Mg.

A further embodiment of a rim provides for the use of CFRP. CFRP is lighter than aluminum and more stable than steel: in addition to a full carbon wheel, an aluminum-carbon hybrid rim can also be used. The latter has an aluminum wheel star, for example, which makes it easier to dissipate heat. The fibers can be manufactured and used, for example, as a mat. Other forms of providing the fibers for processing are also possible, for example in a wound form. The fibers are preferably aligned. Preferred directions for the fibers can be predetermined, for example in order to be able to set a targeted strength. There may also be overlaps of different preferred directions, for example to achieve different strengths. The fibers can also be stored and used as tangled fibers in a mold.

Another embodiment provides for the use of glass fibers. The glass fibers can be processed, for example, as a mat or as a wound fiber. The use of tangled fibers is also possible.

Another embodiment provides the use of stainless steel for a rim and / or part of the locking nut and or for the adapter. The stainless steel can be a steel usually called V2A or V4A steel, for example according to the steel key according to EN 10027-1 or -2: 2017-01, 2015-07 material no. 1.4303, 1.4305, 1.4401, 1.4404, 1.4529, 1.4571 can also be another stainless steel, in particular a stainless steel as it is offered under the names Inox, Nirosta or stainless steel.

A rim intended for use with the system can have the following parameter ranges, for example: Offset 20th to 70 , Width 8.5-12 with a diameter of 16 inches to 26 inches. Typical sizes of rims with central locking can be, for example, between 8.5x19 inches up to 12x26 inches, which also means all combinations of intermediate sizes. The weight of a forged rim is preferably less than 10 kg, in particular less than 9 kg. By designing the rim geometry such as the star and struts, it is possible to create a rim weight of less than 8 kg. The rim design can include, for example, a 3, 4, 5, 6, 7, 8-spoke wheel or multi-spoke wheel. The spokes can be used as a V-spoke - the spokes are arranged as V-shaped pairs, as a double spoke - the spokes are arranged as more or less parallel pairs, as a cross-spoke with a large number of spokes, usually more than ten spokes, or in the form of a Segment spoke designs can be designed. It is also possible to form a disc wheel. These forms and values can be used as examples for a first area of application. Other values can also be used. Special features can also be a concave or convex design. Another method of manufacturing rims is also known as flow forming and can also be used here.

Basically, rims, tires, their structure and their dimensions, values for them, permissible combinations of tires and rims and others result from the specifications of the European Tire and RIM Technical Organization, abbreviated ETRTO. The invention hereby refers to the contents of these standards, currently summarized in the Standards Manual 2018, in particular in the Engineering Design Information Manual 2018, with regard to, among other things, dimensions, dimensions, standards, strength requirements, etc.

For example, a set of rims suitable for a vehicle includes four rims. The rims for the front and rear can have different sizes. However, identical rim sizes can also be used for all four wheels. According to one embodiment, it can be provided that the rims arranged on the left in the direction of travel are fixed with central locking nuts which have a left-hand thread and the rims which are arranged on the right in the direction of travel are fixed with central locking nuts which have a right-hand thread. For example, such a choice of thread for the central locking nut enables it to be tightened automatically if braking occurs or the ABS is activated. Another embodiment provides, for example, that when viewed in the direction of travel, the rims arranged on the left are tightened with a central locking nut which have a right-hand thread and the rims arranged on the right in the direction of travel are tightened with central locking nuts which have a left-hand thread. It can be achieved, for example, that the central locking nuts tighten when accelerating. A set of central locking nuts therefore preferably comprises two central locking nuts with left-hand thread and two central locking nuts with right-hand thread. Adjusted accordingly, two associated adapters with right-hand and two associated adapters with left-hand thread are provided for screwing on the central locking nuts. If another vehicle is equipped with the rims, the replacement adapters preferably also have corresponding threads. There is also the possibility that a set of rims can be attached with a set of adapters and central locking nuts, all of which have the same thread direction, either clockwise or anti-clockwise.

According to a further idea of the invention, which can stand alone as well as in combination with the other ideas of the invention, a webshop with a stored kit for selecting individual components of a system disclosed here with a rim and a locking system and various adapters, depending on Bolt number and bolt circle are selectable, proposed, with a database that has a memory with data on various vehicles and their wheels, and with data relating to the components of the system, the web shop performing an automated check using the data on the various vehicles and has components that enable an indication of whether the assembled components are compatible with the vehicle when the rim with locking system is assembled or whether one or more components are to be exchanged for other components.

The kit can propose or store values and information, such as those that can be derived directly from this disclosure or can be found in the standards mentioned. Furthermore, special selection options can be provided in the modular system, for example regarding the design, the surface quality or the like. It can preferably be provided that the selection made is visually summarized by using stored image and / or video files of the desired components in order to create an image view or a video that can be displayed to the user on his screen. For this purpose, the web shop system preferably has at least one graphics core, preferably a plurality of graphics cores, which also generate a corresponding representation in 4K or as a three-dimensional image or video and make it available to the user via a data line. A further embodiment provides that the user himself has one or more graphics cores that receive the corresponding data via the data line and use them to create a corresponding image, video and / or virtual world: Again, at least one can be assigned to the database Graphics core, preferably a plurality of graphics cores is assigned, and at least one graphics core is also available to the user. So the necessary. Data is exchanged via the data line and the computing capacity can also be divided into different locations. It can also be displayed on data glasses that the user puts on and that one transmits virtual view. One embodiment provides that the selection is made in a virtual world that the user can, for example, use data glasses.

The system, the central locking nut, the rim and / or the web shop appear under the name "UNDERDOCK".

The proposed system with rim or this form of central locking nut can be used not only in sports vehicles, but also in other vehicles. These can be motorcycles, for example with single-swing systems, quads, trikes, Unimogs, trucks, SUVs, but also off-roaders. Also remotely controllable robots, autonomous robots or other vehicles, also aircraft vehicles with wheels such as helicopters, drones, all types of aircraft and others, can be equipped with such a system, with such a central lock or with such a central lock nut. This list of application purposes is only exemplary and not exhaustive.

• 1 eine erste Schnittansicht des zusammengebauten Systems mit Felge,
• 2 eine Explosionsdarstellung der aus 2 hervorgehenden und zusammenbaubaren Teile des Systems,
• 3 eine Ansicht des zusammengebauten Systems entsprechend der Explosionsdarstellung aus 2,
• 4 eine Schnittansicht einer Zentralverschlussmutter,
• 5 die Zentralverschlussmutter mit zusammengesetztem ersten Teil und zweitem Teil,
• 6 einen vergrößerten Ausschnitt aus 1,
• 7 ein weiteres System mit einer Hülse,
• 8 eine Explosionsdarstellung des weiteren Systems,
• 9 einen Adapter,
• 10 eine Explosionsdarstellung von Hülse und Adapter und
• 11 eine schematische Ansicht eines Webshops für das System.

Further advantageous refinements and developments are evident from the following figures. The features shown and described there are exemplary, but should not be construed as limiting. One or more features from one or more figures can be combined with one or more other features from other refinements and developments of this overall disclosure to form additional versions, without these also being explicitly shown in detail. Identical and similar features or components are given the same reference numerals in the following, without any limitation of the individual features or components, in particular not to a single embodiment shown. Rather, these are to be understood as examples. Show it:

• 1 a first sectional view of the assembled system with rim,
• 2nd an exploded view of the 2nd emerging and assemblable parts of the system,
• 3rd a view of the assembled system according to the exploded view 2nd ,
• 4th 2 shows a sectional view of a central locking nut,
• 5 the central locking nut with the assembled first part and second part,
• 6 an enlarged section 1 ,
• 7 another system with a sleeve,
• 8th an exploded view of the further system,
• 9 an adapter,
• 10th an exploded view of the sleeve and adapter and
• 11 a schematic view of a web shop for the system.

In the following, as already above, the term rim is used, since this term has become colloquially used, especially when it comes to one-piece wheels. The use of the term rim, however, refers to a wheel, which can preferably be in one piece, but also in several parts.

1 shows a system 1 , having a one-piece rim 2nd with a central locking system 3rd . The central locking system 3rd has a central locking nut 4th on that is in two parts. The central locking nut 4th is with a cup-shaped hollow cylinder 5 screwed. In addition, the central locking nut 4th via a central screw connection 6 with the cup-shaped hollow cylinder 5 secured. The locking screw serves as an anti-rotation lock and holds the central locking nut together. It acts as a protection against loss according to DIN 10642/7991. A locking ring or locking pin, as is otherwise also known in central locking systems, can thus be dispensed with. Only for completion is the content of the DE 20 2005 018 421 U1 referenced, from which such security means emerge and reference is made to the disclosure thereof within the scope of the invention. By means of the central screw connection 6 becomes the cup-shaped hollow cylinder 5 also closed on the front. The cup-shaped hollow cylinder 5 in this embodiment, materially connected part of an adapter plate 7 . Another embodiment of the adapter can have an embodiment with regard to the hollow cylinder and its connection to the adapter plate, as is known from the DE 20 2005 018 421 U1 emerges and to which reference is made in the context of the disclosure in this regard. The adapter plate 7 is by means of carriers 8th , here in the form of driving bolts, with the rim 2nd connected. There are also wheel bolts 9 provided to connect to a hub, not shown, of a vehicle, not shown. Other elements of the central locking system are described below in 6 explained in more detail.

2nd shows an exploded view of the system 1 . While on the outside face of the rim 2nd the already assembled, two-part central locking nut 4th and then a locking screw 10th for the central screw connection are mounted on the inside face of the rim 2nd the wheel bolts 9 and Carrier 8th in the adapter plate 7 attached, then with the rim 2nd connected so that afterwards this assembled element by means of the central locking nut 4th can be secured. The configuration shown has an outer multi-tooth 11 by means of which the central locking nut 4th can be tightened using a torque wrench or torque wrench. A torque wrench operated with a rechargeable battery is preferably used, which provides a torque of more than 400 Nm, particularly preferably a torque of at least 600 Nm. Any differences with regard to the screwing of the central locking nut and the adapter plate belonging to the respective rim 7 to be able to compensate, the cordless screwdriver preferably has an adjustable torque. It is further preferred that the direction of rotation is adjustable. This means that a predeterminable torque can be used, adapted to the respective combination of vehicle with adapter, rim and central locking nut, and damage caused by improper, too high or too low torque is avoided.

Instead of a multi-tooth 11 the central locking nut 4th a 4-edge or a 6-edge can also be provided. The design of the adapter plate 7 with the cup-shaped hollow cylinder 5 and one on the hollow cylinder 5 provided external thread 12th allows the hollow cylinder 5 acts as a draw bolt. This can be a contact pressure on the surface of the adapter plate 7 on an associated complementary surface of the rim 2nd be imprinted. The hollow cylinder 5 for this purpose preferably has a trapezoidal thread as the external thread, while the central locking nut 4th has an equivalent trapezoidal thread as an internal thread. It is possible to use a DIN thread instead of a trapezoidal thread. The central locking nut 4th is as shown here from a first part 4.1 and a second part 4.2 existing. The second part 4.2 is shaped as a conical ring.

2nd also shows the system to be assembled 1 in an oblique view. The central locking nut 4th preferably has one on the rim as shown 2nd sitting or nearly sitting collar 13 that serves as a cover for the rim opening. This can, for example, at least reduce, preferably prevent, the ingress of dirt, brake abrasion and moisture. The collar 13 However, according to a further embodiment, it can also be dimensioned such that the central locking nut 4th with collar 13 can be screwed into the rim opening. The collar 13 then sits in the rim opening, whereby a very narrow gap is formed between the collar and the rim opening, for example by a coaxial rim design of the collar 13 to rim opening and thus the central bore of the rim. This can be seen, for example, from the following 5 forth. The collar 13 is firmly arranged on the central locking nut, preferably the collar is materially connected to the central locking nut. The collar 13 has preferably been produced from a solid in a machining process for producing the central locking nut.

3rd shows a top view of another central locking nut 4th . The central locking nut 4th is with a cap 28 covered. That cap 28 can be part of a tool for applying torque to the central locking nut 4th his. The cap 28 can also be part of a tool set for the system and is used on the central locking nut, for example, before using an impact screwdriver 4th put on. The operator of the impact wrench can then see in which direction of rotation the impact wrench for tightening the central locking nut 4th or to loosen the central locking nut 4th has to turn. Tightening is indicated by the "LOCK" and the associated arrow, while loosening is indicated by the "UNLOCK" and the associated arrow. The arrows, like the writing, can be raised, in particular also palpable and / or distinctive for the operator by means of colored highlighting, in particular also different colored highlighting. So that the operator knows on which side of the vehicle the cap 28 to be put on the central locking nut, one side of the cap is viewed in the direction of travel of the vehicle 28 on which this is to be used. Here the indication "RE" stands for the right side of the vehicle. Such identification is particularly useful if the respective assigned adapters have a first thread direction on the left and front of the vehicle and a corresponding thread direction on the right side of the vehicle has a second thread direction opposite to the first thread direction. Another embodiment provides that the cap 28 has a label indicating whether it is a right-hand thread or a left-hand thread that has the central locking nut. The “RE” marking can also be used in such a case. For a left-hand thread, for example, the marking "LI" on the cap 28 be arranged. There is also a possibility that the cap 28 is provided with a mom-dad connection for the central locking nut with respect to its section which can be slipped onto the central locking nut. For example, the mom-dad connection is such that the cap 28 cannot be put on central locking nuts not intended for this purpose. So can a cap 28 for a right-hand thread a central locking nut with left-hand thread can be applied. Conversely, a cap 28 for a left-hand thread, do not apply to a central locking nut with a right-hand thread. Operating errors can be prevented. One on the cap 28 However, the marking provided and also shown by way of example can also be applied or applied to a central locking nut itself. For example, the collar can be used for this 13 the central locking nut 4th serve. On its surrounding surface 29 there is the possibility, for example by means of lasers, by engraving, by eroding, with stickers or in some other way, of being able to incorporate corresponding information, in particular information such as that relating to the cap 28 executed. However, other and additional information can also be found on this rotating surface 29 being represented.

4th shows a sectional view of the central locking nut 4th along a section AA 3rd . The first part 4.1 and the second part 4.2 form a central locking nut 4th . The second part 4.2 about the first part 4.1 pushed, screwed or guided in any other way. The first part 4.1 has a complementary geometry to the second part 4.2 in an area where the second part 4.1 on the first part 4.1 comes to the concern. This follows from the following 5 more clearly. The first part 4.1 points at its face 30th a sink suitable for a countersunk screw 31 in a pot-shaped hollow cylinder 5 on. A locking device against loss and loosening is created by means of the screw connection. Furthermore, the end face 30th a recess 32 on. A cover plate, not shown here, can be inserted into this, which in this case protects the screw connection.

5 shows the central locking nut 4th with assembled first part 4.1 and second part 4.2 . The second part 4.2 is opposite to the first part 4.1 rotatable in the assembled state, ie a relative rotation between the first part 4.1 and second part 4.2 is possible. In the open space 33 in which the second part 4.2 is arranged, forms the second part 4.2 a rotatable dome. The freedom 33 in turn is such that the second part 4.2 on the collar 13 abuts and has frictional contact. The outside diameter of the first part 4.1 in the free space, however, is less than an inner diameter of the second part 4.2 adjacent to it. As a result, no or only reduced friction can occur here. Through an undercut 34 in the inner diameter of the second part 4.2 it ensures on the one hand that between the external thread 38 of the first part 4.1 and the second part 4.2 there is no contact. On the other hand, this can result in a concave surface 35 be made possible by the overlap of the external thread 38 is extended. The friction surface therefore remains on the collar 13 abutting surface of the second part 4.2 . Because the second part 4.2 a concave surface 35 which, due to the angle and length, is larger than that with the collar 13 friction surface in contact occurs when the central locking nut is tightened 4th about their internal thread 39 with respect to a relative rotation to stick to this concave surface 35 on the rim while the relative movement between the first part 4.1 and second part 4.2 is still possible and thus a higher tractive force can be induced via the torque.

6 shows a section of a representation of the system 1 how they out 1 emerges. The composite central locking system 3rd clearly shows the two-part central locking nut 4th with a first part 14 and a second part 15 . The first part 14 has an internal thread 16 on what a screw connection with the external thread 12th of the hollow cylinder 5 is possible. The collar 13 the central locking nut 4th is screwed into the rim opening and forms a circular sealing gap with it. The second part 15 has an outer cone 17th on that on an inner cone 18th the rim 2nd comes to rest. The inner cone 18th and the outer cone 17th have mutually complementary pitch angles. By making the first part 14 and the second part 15 separated from each other but rotatably movable relative to each other, a higher torque can be applied than if the central locking nut 4th would be in one piece. In this sense, the two-part design of the central locking nut should therefore be understood as follows: enabling this relative movement between the first and second part 14 , 15 when tightening the central locking nut 4th . The second part 15 supports itself on the collar 13 of the first part 14 from.

Furthermore goes out 6 clearly shows that the dimensioning of the diameter of the adapter plate 7 is adapted to an adapter contact surface 19th that the rim 2nd forms. The adapter plate 7 has a first level 20th on the the rim bearing surface 21 includes. It also extends from the first level 20th from a base. The base 22 again forms a coaxial cylinder surface with the central bore of the rim. This enables centering as well as a form fit. On the base 22 is the cup-shaped hollow cylinder 5 arranged, with an inner cavity 23 from the hollow cylinder 5 through the adapter 7 extends to accommodate the hub. The inner cavity 23 is preferably dimensioned so that it can be assembled with the hub in a centric fit. The adapter contact surface 19th and the rim contact area 21 preferably have the same circumferential diameter and are flush here. This allows a flow of force over the entire available contact area.

6 shows driver 8th that in the adapter plate 7 are pressed in. Pressing in the drivers 8th , in particular driver pins, is such that the drivers 8th are pressed non-releasably. This means that either the connection can only be loosened by destroying at least the drivers or by extreme heat differences between the adapter plate and driver 8th . The drivers are preferably made of steel, the adapter plate 7 however, from an aluminum alloy, for example. It has been found that the pressing does not cause cracking, as occurs during operation when the adapter plate and driver are screwed together.

Out 6 is also removable that in the adapter plate 7 recessed wheel bolts 9 by means of the adapter contact surface 19th be shielded on the rim side. The wheel bolts 9 sit in a closed cave, where they are largely protected against environmental influences such as dirt and moisture.

As from the views of the 1 to 6 can be seen, the spokes shown here are brought in very close to the inside and also very far in to the star from the rim wheel. This geometric design makes it possible to shield the adapter plate on the rim side and still achieve sufficient strength and rigidity of the rim. If the rim is arranged on another vehicle with different specifications, a different adapter plate adapted to this vehicle can still provide the same contact area with the rim and the other use of the parts of the system 1 be secured.

7 shows another system 1 which is essentially the same as that made up of 1 emerges. With this system 1 out 7 however, has the central locking nut 4th an additional sleeve 36 for reinforcement. The sleeve 36 is inside the hollow cylinder 5 arranged and serves to reinforce the hollow cylinder 5 when transferring tensile forces to the adapter plate 7 . The tensile forces are via the central locking nut 4th on the hollow cylinder acting as a draw bolt 5 and on the adapter plate 7 imprinted. A covenant supports this 37 on a contact surface in the adapter.

8th shows an exploded view of the components of the system 1 out 7 . In addition to that 2nd known components here is also the sleeve 36 shown, which in turn in the embodiment shown a circumferential collar 37 owns.

9 shows an adapter in supervision with a displayed cutting plane AA , which is explained in more detail in the following figure.

10th shows an exploded view along the section plane AA a sleeve 36 with covenant 37 . The arrows show that the sleeve 36 is inserted into the adapter. The sleeve 36 can in the pot-shaped hollow cylinder 5 be screwed in. For this purpose, the hollow cylinder 5 for example an internal thread and the sleeve 36 an external thread. The internal thread is preferably longer than the external thread. The sleeve 36 is screwed in until the collar 37 is flush with the adapter. The sleeve 36 is preferably hollow and open on both ends. The wall thickness of the sleeve 36 can be less than the wall thickness of the sleeve 36 surrounding hollow cylinder 5 . A strength of the material of the sleeve is preferred 36 greater than a strength of the material of the hollow cylinder 5 . The sleeve 36 can also be provided without a collar. Furthermore, the sleeve 36 also be closed on one or two end faces, at least in part. The sleeve can also 36 have one or more struts inside which strengthen the strength of the sleeve. For example, the sleeve is cast, made from solid material, made from metallic material by means of a sinter pressing process or else by means of a 3D process.

11 shows a web shop system in an exemplary schematic embodiment 24th , by means of which the proposed system can be put together automatically for a user. Using an input / output unit 25th using a computing unit 26 is connected by wire and / or radio, the necessary information can be exchanged. In this way, the data records can be linked together in a database and combinations can be created and discarded. Using one or more graphics processors 27 Photo sequences, videos and all-round views can then be calculated according to the data sets and then made available to the user. This also allows, for example, the use of a 3D display, for example using 3D glasses. By means of a bidirectional connection, the assembly and disassembly of the system with the rim can also take place virtually.

As shown, the system with rim and associated central locking system serves as an adapter system which can be adapted to any vehicle and for any other use with regard to the respective connection dimensions, which is accompanied by a widening of the track for each rim which can be adapted to the rim. Thanks to this design, it is not necessary to replace a brake despite the adapter plate with track widening and central locking system.

Reference list

1

system

2nd

Rim, but also includes a wheel

3rd

Central locking system

4th

Central locking nut

4.1

first part of the central locking nut

4.2

second part of the central locking nut

5

Pot-shaped hollow cylinder

6

Central screw connection

7

Adapter plate

8th

Driver, especially driver pin

9

Wheel bolts

10th

Locking screw

11

Multi-tooth

12th

External thread of the hollow cylinder

13

Collar of the first part of the central locking nut

14

First part of the central locking nut

15

Second part of the central locking nut

16

Internal thread of the central locking nut

17th

Outer cone of the second part

18th

Inner cone of the rim

19th

Adapter contact area

20th

First floor

21

Rim contact surface

22

base

23

Interior cavity

24th

Web shop system

25th

Input / output unit

26

Arithmetic unit

27

Graphics processor

28

cap

29

All-round surface

30th

Face

31

Sink

32

Recess

33

free space

34

Freeway

35

Concave surface

36

Sleeve

37

All-round waistband

38

External thread of the central locking nut

39

Internal thread of the central locking nut

QUOTES INCLUDE IN THE DESCRIPTION

This list of documents listed by the applicant has been generated automatically and is only included for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 202005018421 U1 [0050]

Claims (10)

System (1) comprising a rim (2) with a central locking system (3), the rim (2) not having a bolt circle for wheel bolts (9) for attachment to a wheel hub, but rather has a central bore for attachment to the wheel hub, preferably the rim (2) is a forged rim (2) made of an aluminum material, the central locking system (3) having a central locking nut (4) and an adapter plate (7), the rim (2) on the side facing the wheel hub having several recesses, preferably Has closed bores for receiving at least one driver (8), preferably one driver bolt, the central locking system (3) having a first adapter plate (7) for arrangement and attachment to a first wheel hub and the first adapter plate (7) having a first Has bolt circle with passages for receiving wheel bolts (9), the first adapter plate (7) having the drivers (8), which are complementary to the openings of the F Elge (2), wherein the first adapter plate (7) has a centered through the central bore in the rim (2) projecting, preferably integrally connected to the adapter plate (7) hollow cylinder (5), which is preferably pot-shaped or open, the has an external thread which is complementary to an internal thread of the central locking nut (4), the hollow cylinder (5) having an internal cavity (23) for encasing a wheel hub at least along the circumference of the wheel hub and preferably also on the end face to the wheel hub, the central locking nut (4 ) has an outer cone, the shape of which is complementary to an inner cone of the rim (2). System (1) according to Claim 1 , characterized in that the adapter plate (7) has a circular base (22) from which the hollow cylinder (5) extends into the rim (2), the base (22) forming a clearance fit with the central bore, while the drivers (8) form a clearance fit with the recesses in the rim (2), and / or the adapter plate (7) has a front side which has a first level (20) from which the base (22) rises directly, the Base (22) forms a second plane which runs parallel to the first plane (20), the passages for the wheel bolts (9) and bores for the drivers (8) and the first being arranged in the first plane (20) Plane (20) forms a rim contact surface (21) for the rim (2), the rim (2) having an adapter contact surface (19) complementary to the rim contact surface (21), and the rim contact surface (21 ) and the adapter contact surface (19) lie against each other, and the base (22) with the rim (2) Pair on two mutually coaxial cylinder surfaces, which form a centered positive connection in all directions of the plane perpendicular to a cylinder axis of the coaxial cylinder surfaces, and / or the adapter plate (7) has a rear side, which is a flat plane in which the passages for the Wheel bolts (9), a multiplicity of through-bores for the drivers (8) and the opening in the inner cavity (23) of the pot-shaped hollow cylinder are arranged, the inner cavity (23) in a pot-side end face having a centered, continuous threaded hole for screwing the central locking nut (4) and adapter plate (7), and / or the system (1) is provided with a second adapter plate which has a different hole circle from the first bolt circle of a first adapter plate (7) for attachment to a second wheel hub for a vehicle of a first wheel hub another vehicle, the driver (8) of the second adapter plate (7) also k Complementary to the recesses in the rim (2) are the drivers of the first adapter plate. System (1) according to Claim 1 or 2nd , characterized in that the tightened central locking nut (4) is completely surrounded by the rim (2) below a rim end face and an end cover of the hollow cylinder (5), in particular the pot-shaped hollow cylinder, which is inserted into a central locking nut end face, then also below the rim face remains. Central locking system (3) for a system (1) according to one of the Claim 1 to 3rd The central locking system (3) has a central locking nut (4) and an adapter plate (7), the adapter plate (7) having a hollow cylinder (5), preferably a cup-shaped hollow cylinder, and along an outer circumference of the hollow cylinder (5), preferably along of the almost entire outer circumference of the hollow cylinder (5), an external thread (12) extends, while the central locking nut (4) has an internal thread (16) complementary to the external thread (12), the internal thread (16) preferably being at least approximately over the entire length Inner length of the central locking nut (4) extends. Central locking system (3) Claim 4 , characterized in that an end face of the hollow cylinder (5) of the adapter plate (7), which is cup-shaped, forms a plane which runs parallel to an end face of the central locking nut (4), preferably a centered locking screw for securing the central locking nut (4) can be screwed to the adapter plate (7) in the end face of the pot-shaped hollow cylinder (5), and / or a thread direction of a locking screw runs opposite to a thread direction of the internal thread (12) of the central locking nut (4). and / or that at least one driver (8) is pressed into the adapter plate (7), preferably all drivers (8) are pressed into the adapter plate, and / or that a sleeve for increasing the strength of the adapter (7) is arranged in the hollow cylinder (5) is. Central locking nut (4) for a system (1) with a rim (2) with a central locking system (3) according to one of the Claims 1 to 3rd and / or for a central locking system (3) Claim 4 , characterized in that the central locking nut (4) has a cylindrical shape, preferably pot-shaped, with an end face, the central locking nut (4) being in two parts, a first part (14) of the central locking nut (4) having the end face and the cylindrical shape and a second part (15) of the central locking nut (4) has an annular shape, the second part (15) being arranged via the first part (14) so as to be movable from the end of the central locking nut (4) opposite the end face up to a stop, wherein the stop on the first part (14) is arranged as a circumferential collar (13) and prevents further movement of the second part (15) in the direction of the end face, the first part (14) protruding through the ring shape of the second part (15) and the second part (15) has a conical bearing surface for the rim (2). Central locking nut (4) Claim 6 , characterized in that the second part (15) is permanently connected to the first part (14), is preferably screwed, and / or that the conical bearing surface for the rim (2) provides a larger friction surface than a contact surface between the first part (14) and the second part (15) in the state to be tightened with a torque of the central locking nut on the rim, and / or the central locking nut has an open end face or an at least approximately closed end face. Rim (2) for use with a system (1) with the features of one of the Claims 1 to 3rd and / or with a central locking system (3) Claim 4 or 5 and / or with a central locking nut (4) Claim 6 or 7 , The rim (2) does not have a bolt circle for wheel bolts (9) for attachment to a wheel hub, but has a central bore for attachment to the wheel hub, characterized in that the rim (2) is preferably a one-piece forged rim (2) made from one is aluminum-based or magnesium-based material, with a support surface in the form of an inner cone that is complementary to a central locking nut (4), with struts that run from the outside inwards and form an axially arranged star, the star opening up the inner cone and openings for drivers (8) has an internal, flat adapter bearing surface, the struts preferably running at least partially inwards into the rim (2), so that the star is preferably offset inwards within the rim (2), and the rim (2) has an associated one Covering the adapter plate from the outside. Rim (2) after Claim 8 , characterized in that the rim (2) is a one-piece forged rim (2) made of an aluminum-based or magnesium-based material or the rim (2) is made of several parts, part of the rim (2) being made of an aluminum-based or magnesium-based material, and / or the rim has stainless steel, a glass fiber material and / or a carbon fiber material. Web shop system (24) with a stored kit for selecting individual components of a system (1) according to one of the Claims 1 to 3rd with a rim (2) and a central locking system (3) and various adapters, which can be selected depending on the number of bolts and bolt circle, with a database that has a memory with data on various vehicles and their wheels, and with data relating to the components of the system, whereby the web shop has an automated check using the data on the various vehicles and components, which triggers an indication whether the assembled components of the rim (2) with the central locking system (3) are compatible with the vehicle or whether one or more components have to be exchanged for other components.

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