Vehicle wheel assembly

Abstract

A vehicle wheel assembly (1) is provided, comprising: a wheel (100) comprising a rim (102), at least one shell mounting device (200) attached to said rim (102) by a material fit connection (202) and a shell (300) arranged on the rim (102) by means of said shell mounting device (200) creating a mounting connection (204) therefore, wherein said rim (102) and said shell (300) together delimit a Helmholtz volume (V).

Description

[0001] Applicants: Vibracoustic SE Hbhnerweg 2-4 69469 Weinheim

[0002] Maxion Wheels Holding GmbH LadestraBe

[0003] 53639 Kdnigswinter

[0004] Vehicle wheel assembly

[0005] The invention relates to a vehicle wheel assembly.

[0006] Tires of vehicles are sources of noise and vibration (NVH). Their contribution to exterior and interior noise is becoming even more dominant in electrified vehicles. A significant portion of the generated NVH can be traced back to the so-called tire cavity noise when the air torus in the tire is being excited by road inputs. On one hand, this leads to increased radiated (drive-by) noise, directly emanating from the tire. On the other hand, this cavity vibration is being transmitted through the wheel into the wheel carrier and further through several transfer paths into interior cab noise and vibration. Tire cavity vibration can manifest as booming noise in the cab.

[0007] Known solutions use the principle of the Helmholtz resonator, in which an air plug in an opening oscillates on a resilient air cushion or a volume of a housing. However, the housings have a complex geometry and enclose the relevant volume themselves, so that they are complex and expensive to manufacture and also have an unsatisfactorily high weight. Moreover, Helmholtz resonators are known attached to fastening elements formed by the rim itself, such as flanges or edges. However, these fastening elements also require the rim geometry to be adapted to a single suitable resonator. The rim itself is therefore also complex to design. The rim therefore also has a complex geometry, which is expensive to manufacture. It is therefore the task of the invention to improve the state of the art, in particular to create a means to reduce tire cavity vibration which has a low-complexity geometry, is inexpensive and also has a low weight.

[0008] This task is solved by the vehicle wheel assembly according to a first aspect with the features of claim 1 , by the vehicle wheel assembly according to a second aspect with the features of claim 14 and by the vehicle wheel assembly according to a third aspect with the features of claim 15.

[0009] It has been recognized that tire cavity noise can be avoided even if the resonator alone cannot form a working Helmholtz volume, but only when it is arranged on the rim. It is only through the inventive arrangement of the shell on the rim that a working Helmholtz volume is defined by the shell and the rim. This opens up design freedom with regard to the resonator. In accordance with the invention, a shell is therefore proposed which is attached to the rim. The shell is therefore bottomless, whereby this results in a reduction in manufacturing and assembly costs, a reduction in weight and less complexity. Hence, the arrangements according to said three aspects have said single general inventive concept in common.

[0010] According to the first aspect of the invention, a vehicle wheel assembly is disclosed comprising a wheel comprising a rim, at least one shell mounting device attached to said rim by a material fit connection and a shell arranged on the rim by means of said shell mounting device creating a mounting connection therefore, wherein said rim and said shell together delimit a Helmholtz volume.

[0011] According to the first aspect of the invention, the shell is not attached to a dedicated rim geometry, but to a separate shell mounting device. The shell mounting device is a separate part from the rim and from the shell. It can also be referred to as a docking station. Said at least one shell mounting device is attached to the outer surface or outer circumference surface of the rim. Said shell is arranged on the outer surface of the rim. The shell mounting device therefore forms a connection to the rim in order to attach itself there and another connection to the shell in order to attach the shell. The material fit connection attaches the shell mounting device or part of said shell mounting device to the rim. The mounting connection secures the shell to the rim. The shell mounting device and / or the mounting connection secures the shell stationary and immovable relative to the rim. This ensures a good effect at all times. The rim can be made of a metal, for example aluminum and / or steel.

[0012] Said solution may be applied on applicable existing rim designs as there is no need to change on the rim profile. Said Helmholtz volume is secondary cavity inside a tire cavity. Said Helmholtz volume created by the shell and the rim has a communication opening. Said communication opening can open the Helmholtz volume to a tire cavity. Said communication opening can be delimited by the shell and / or the rim. The communication opening can be arranged on a transverse side of the shell that runs in the axial direction. Thus creating an interaction between the Helmholtz volume and the tire cavity. The vehicle wheel assembly may comprise a tire arranged on the rim, wherein said tire and said rim together delimit a tire cavity.

[0013] According to an optional embodiment of the invention according to the first aspect, said rim comprises a cylindrical or conical outer circumferential surface to which said shell mounting device is attached. This advantageously underlines the fact that no adaptation is required on the rim side in order to arrange the shell there, as it is not dependent on fastening elements that are formed by the rim itself.

[0014] According to an optional embodiment of the invention according to the first aspect, said shell can be a half-shell and / or open to the rim and / or bottomless. Said shell can be free of an undercut in the radial direction. This makes it simple, cost-effective and easy to manufacture with simple tools. The shell can be in one piece, preferably in one material. This also allows it to be manufactured simply and cost-effectively.

[0015] According to an optional embodiment of the invention according to the first aspect, said material fit connection is realized by gluing or welding or soldering. Each of these variants represents a cost-effective and durable option for fastening to the rim. The material fit connection can bond directly to the outer surface of the rim. The welded material fit connection can be a spot-weld.

[0016] According to an optional embodiment of the invention according to the first aspect, said material fit connection extends at most 0.5 mm into the material of the rim. This depth is sufficient to create a durable joint, but shallow enough to avoid thermal damage and aesthetic problems on the rim. Furthermore, said depth avoids a negative durability effect on the rim itself.

[0017] According to an optional embodiment of the invention according to the first aspect, said mounting connection is realized by a form fit connection and / or force fit connection, preferably by notching, clipping, screwing, riveting and / or crimping, or gluing or welding or soldering. Each of these variants represents a cost-effective and durable option for fastening to the shell mounting device. Furthermore, each of these variants allows replacing the shell if needed and prevents the shell to be detached from the rim during the vehicle usage. Each of the variants is also suitable for pressing the shell onto the rim or securing a molded-in contact pressure. This serves to seal the Helmholtz volume. With regard to notching, the notch can first be created when the shell is attached. The notch can be created or be arranged in the shell mounting device or be created in the shell. The shell mounting device or the shell may comprise a notch. The notch is a self-cut notch. This variant is very cost-effective, as no special geometry requirements need to be placed on the parts to be connected. One part creates its own notches in the other part.

[0018] With regard to clipping, the shell mounting device can comprise a clipping device that is itself connected to the rim via said material fit connection and is then clipped with the shell. The shell mounting device may comprise clipping partners. The clipping can be done with a flick of the wrist and positions the shell permanently in a desired position. The clipped connection can also be a reversible and / or damage-free reversible connection. This makes it easy to replace the shell.

[0019] With regard to screwing, said shell mounting device may comprise two screwing partners with corresponding threads. Screwed connections are easy to loosen and reassemble, which facilitates maintenance and repair. Screwing is generally inexpensive and does not require any special tools or complex processes. The screw connection can be a self-locking screw connection, for example, the shell mounting device can comprise a preload device that applies a preload force to the shell mounting device or mounting connection, preferably in a radial direction. Selflocking prevents loosening.

[0020] With regard to riveting, said shell mounting device may comprise a rivet or blind rivet or blind rivet nut. The rivet can therefore form the material fit connection with the rim for its own attachment to the rim and be attached to the shell for the attachment of the shell. The mounting connection can be created by plastic deformation of the rivet and / or be screwing a screw with the blind rivet nut.

[0021] With regard to crimping, said shell mounting device may comprise a crimping element. The crimping element can therefore form the material fit connection with the rim for its own attachment to the rim and be attached to the shell for the attachment of the shell. The mounting connection can be created by plastic deformation of said crimping element.

[0022] With regard to glueing, said shell mounting device may comprise an adhesive or glue. The ad- hesive / glue bonds to the shell mounting device and the shell.

[0023] According to an optional embodiment of the invention according to the first aspect, said mounting connection and / or said shell mounting device forces said shell onto said rim. The mounting connection and / or said shell mounting device are therefore configured in such a way that they apply a force to the shell that is directed onto the rim in a radial direction. This ensures secure fixing, prevents rattling and seals the Helmholtz volume. It is conceivable that there is a prestress gap between the shell and one of the shell mounting device or a part of the shell mounting device when said force is absent. This prestress gap closes when the mounting connection is established and the preload force is applied. It is also conceivable that the shell deforms elastically due to the force.

[0024] According to an optional embodiment of the invention according to the first aspect, said shell mounting device comprises a first mounting partner attached to the rim by said material fit connection and a second mounting partner. The shell mounting device can therefore be in (at least) two parts. The two partners are separate to each other. The first mounting partner is therefore attached to the rim, preferably directly. The second mounting partner can be attached to the shell, preferably before the mounting connection is created. The second mounting partner can be formed by the shell in one piece. The second mounting partner can be formed by the shell, preferably the second mounting partner can be a hole or a recess in the shell, into or through which said first mounting partners engages. The two mounting partners can be attached to each other, preferably whereby creating said mounting connection. Together, the two mounting partners serve to fasten the shell in a cost-effective and low-complexity manner.

[0025] One of the first and second mounting partners can form a support surface for the shell. The shell can rest against the support surface. This ensures a secure end position. The shell can be forced against this support surface due to the shell mounting device and / or the mounting connection.

[0026] A third mounting partner is also conceivable, preferably in case of a first and second mounting partner. The first, second and third mounting partners can act together as fasteners for the shell. The third mounting partner can be formed by the shell, preferably the third mounting partner can be a hole or a recess in the shell, into or through which at least one of the other two mounting partners engages, preferably both. Preferably, in case the third mounting partner being a hole or a recess in said shell, said second mounting partner may not be a hole or recess in the shell.

[0027] According to an optional embodiment of the invention according to the first aspect, wherein in the case of a mounting connection by clipping, the two mounting partners (preferably first and second) are clipping partners that can be clipped together, preferably said first and second mounting partners. Basically, clipping requires an undercut on one of the mounting partners and a part that clips behind the undercut on the other partner. The clipping partners can be formed by a male and female part of a snap rivet. The clipping partners can be formed by a male and female part of a snap rivet including a securing pin. The clipping partners can be formed by a snap-hook or arrow-pin and a hole or undercut. The clipping partners can be formed by one or more elastic snap tongue(s) and a hole or undercut. Each of these variants is quick and easy to fit and secures the shell to the rim.

[0028] According to an optional embodiment of the invention according to the first aspect, wherein in the case of a mounting connection by screwing, the two mounting partners (preferably first and second) are screwing partners that can be screwed together by screwing, preferably said first and second mounting partners. The two partners can each comprise a corresponding thread. Said first mounting partner can be a threaded bolt and / or said second mounting partner can be a threaded nut or vice versa. Said first mounting partner can be a threaded socket and / or said second mounting partner can be a threaded screw or vice versa.

[0029] The shell mounting device can also include a preload device. The preload device generates a preload to secure the screw connection, preferably said force acts in a radial direction. It also serves to maintain the screw connection when the respective components are subjected to relaxation. The preload device can either be elastic itself, for example made of rubber, and / or generate the preload force by means of own geometric design. The preload device also prevents damage to the shell when tightening the screw connection, as it increases the tolerance against over-tightening. This applies in particular to a shell made of plastic material.

[0030] According to an optional embodiment of the invention according to the first aspect, wherein in the case of a mounting connection by riveting, the two mounting partners (preferably first and second) can be riveted together by riveting. The first mounting partner can be a rivet, the second mounting partner can be a hole or a recess in the shell. Said rivet can be attached to said rim by said material fit connection. Said rivet can be a rivet stud or a rivet sleeve or a blind rivet or blind rivet nut. Said rivet sleeve and blind rivet and blind rivet nut may be plastically deformable on its free end. The plastic deformation and / or screwing a screw with the blind rivet nut leads to a form fit that creates the mounting connection.

[0031] According to an optional embodiment of the invention according to the first aspect, wherein in the case of a mounting connection by crimping, the two mounting partners (preferably first and second) can be crimped together by crimping. The first mounting partner can be a crimp sleeve, the second mounting partner can be a hole or a recess in the shell. Said crimp sleeve can be attached to said rim by said material fit connection. Said crimp sleeve may be plastically deformable on its free end. The plastic deformation leads to a form fit that creates the mounting connection. According to an optional embodiment of the invention according to the first aspect, said first mounting partner is a pin and / or said second mounting partner is a push-on washer or vice versa. The pin is easy to attach. It can extend in a radial direction. The other mounting partner can then also be attached to the pin in the radial direction. The pin can have an undercut, but it can also be free of an undercut. The pin can have a cylindrical shape, preferably at least in the mounting section for the second partner. The second partner can be a push-on washer. The washer can comprise a ring from which clamping tongues project radially inwards. The tongues are preferably elastic. These clamping tongues can press into the first partner with their free ends and form notches there. An undercut on the pin is therefore not necessary. The pin may be made of a softer material than the push-on washer, which makes it easier to form notches. The push-on washer can be made of a metal to facilitate notch formation, preferably spring steel. This also prevents material relaxation, which prevents the mounting connection from loosening unintentionally. The clamping tongues can extend in the opposite direction to the push-on direction when said mounting connection is created. This further secures the mounting connection. The advantages lie in the low costs, the low assembly effort, but at the same time a low push-on force and a very high resistance to loosening is possible.

[0032] According to an optional embodiment of the invention according to the first aspect, said second mounting partner can be a separate part to said shell and / or permanently attached to said shell or formed in one piece with said shell. Each of these three variants has its own advantages. The first alternative and second alternative allow the second mounting partner to be produced independently of the shell production. This reduces manufacturing costs, especially if the parts are made of different materials. The second alternative enables attachment to the shell even before the mounting connection is realized. This can simplify the manufacturing and assembly process. The third alternative dispenses with a separate mounting partner in relation to the shell, as the shell forms the mounting partner itself. The mounting partner can therefore be formed at the same time as the shell is manufactured. This reduces the number of process steps required during assembly. The shell and said second mounting partner can be formed in one material. This also allows it to be manufactured simply and cost-effectively.

[0033] According to an optional embodiment of the invention according to the first aspect, more than one shell mounting device is assigned to the / each shell, preferably exactly two mounting devices are assigned to the / each shell. It has been shown that two mounting devices are sufficient to securely fasten the shell without negatively affecting its functionality. The shell mounting devices can be spaced apart from each other in the circumferential and / or axial direction. According to an optional embodiment of the invention according to the first aspect, said vehicle wheel assembly comprises more than one shell. By means of a plurality of shells a corresponding number of Helmholtz volumes can be formed, so that the effect is improved. Preferably, the vehicle wheel assembly comprises exactly two shells. The two shells can be arranged diametrically in relation to the rim rotation axis. This improves the effect and avoids imbalance. Each shell can comprise a corresponding amount of shell mounting devices, whereby the amount can also be one. Each shell can have its own mounting device(s), which only mount the corresponding shell. This means that each shell can be mounted and / or distributed on the rim independently of other shells.

[0034] According to an optional embodiment of the invention according to the first aspect, said wheel assembly or said rim has a valve or a valve hole, the shell being arranged such that the communication opening in the circumferential direction of the rim faces away from the valve or a valve hole. If the said wheel assembly comprises several shells, all communication openings can face away from said valve or a valve hole. This orientation of the communication opening(s) prevents the ingress of any liquids into the Helmholtz volume(s) that may enter the tire cavity through said valve. Such a liquid can be a self-sealing-liquid to close an unwanted hole in the tire through which air is leaking. Such fluids are common aids for punctures.

[0035] According to an optional embodiment of the invention according to the first aspect, the or at least one shell mounting device is arranged at the outer edge(s) or sides of the shell or inside the outer circumference of the shell. The outer circumference may be viewed in the radial direction. The first alternative is advantageous because the shell mounting device(s) is / are then arranged close to the outer edge(s), which is advantageous for sealing. Less force needs to be applied. Furthermore, this arrangement can result in the shell mounting device simultaneously fastening the shell and sealing the Helmholtz volume. The second alternative is advantageous because it saves installation space, as no fastening needs to be provided outside the shell or on its outer edges. Preferably, said shell mounting device is surrounded by said Helmholtz volume, preferably on the respective outer circumference. In case more than one shell mounting device is assigned to said shell, all of the shell mounting devices may be surrounded by said Helmholtz volume, preferably on the respective outer circumference. The shell mounting device(s) may be arranged at a distance from the outer edge(s) or longitudinal sides of the shell, which run in the circumferential direction, and / or from the outer edge(s) or the transverse sides of the shell, which run in the axial direction.

[0036] According to an optional embodiment of the invention according to the first aspect, wherein, viewed in the radial direction, if there are exactly two shell mounting devices, they have a linear arrangement which extends in the circumferential direction, if there are exactly three shell mounting devices, they have a triangular arrangement, if there are exactly four devices, they have a quadrangular arrangement.

[0037] According to an optional embodiment of the invention according to the first aspect, said shell is mounted airtight against said rim and / or against said shell mounting device, preferably by means of at least one sealing device. The adjoining areas of the shell on the one hand and the rim and / or the shell mounting device on the other are airtight. It is understood that the Helmholtz volume is not completely closed, but has a neck through which the Helmholtz volume is connected to the environment of the shell. The environment can be a tire cavity in the event that a tire is attached to the rim. Preferably, the shell is completely sealed off from the shell environment with the exception of the communication opening. It is conceivable that the shell lies airtight directly against the rim and / or the shell mounting device without a dedicated sealant. It is conceivable that the shell mounting device and / or the mounting connection are designed in such a way that the force applied to the shell in the radial direction is sufficient to ensure adequate sealing. Said at least one sealing device can be an elastic seal (rubber seal for example), an adhesive tape or an adhesive strip. However, said at least one sealing device can be a glue seam or a weld seam or a solder seam. Said at least one sealing device can be either added / at- tached to the shell or to the rim, or both.

[0038] According to an optional embodiment of the invention according to the first aspect, said sealing device comprises an outer sealing device arranged on an outer circumference of the Helmholtz volume and / or at least one inner sealing device arranged on an inner circumference of the Helmholtz volume. Both sealing devices seal off the Helmholtz volume from the shell environment. The inner sealing device(s) create(s) an area within the outer circumference of the shell that is sealed off from the Helmholtz volume. A shell mounting device can advantageously be arranged in this area. This is particularly advantageous if the shell has a mounting hole, in which the respective shell mounting device is arranged. Preferably, each shell mounting device is sealed with a single inner sealing device. Preferably, said shell has only a single outer sealing device, preferably in one piece.

[0039] According to an optional embodiment of the invention according to the first aspect, said shell comprises a mounting hole for said shell mounting device, preferably said mounting hole is surrounded on its outer circumference by said Helmholtz volume or said mounting hole is arranged adjacent to said Helmholtz volume. The mounting hole preferably extends in a radial direction. Preferably, each shell mounting device is arranged in a mounting hole, preferably each shell mounting device has its own mounting hole. The mounting hole can be a through hole. It can extend from the outer circumference of the shell to the outer circumference of the rim. This enables easy mounting on the shell mounting device. The wall of the mounting hole can extend in a radial direction; it can surround the shell mounting device. It is conceivable that the wall forms a groove that accommodates a sealing device, preferably on its free end. This simplifies the geometry and achieves a good seal. The groove can be an annular groove and / or be arranged on the end face of the wall.

[0040] According to an optional embodiment of the invention according to the first aspect, the shell as such is free of holes. The shell can at least be free of holes for its mounting. This makes it very easy and inexpensive to produce.

[0041] According to an optional embodiment of the invention according to the first aspect, the shell can delimit a single Helmholtz volume only. This also makes the geometry less complex and less expensive to manufacture and assemble.

[0042] According to an optional embodiment of the invention according to the first aspect, the shell comprises at least a flange, preferably two flanges on each of its transverse sides, the shell mounting device being attached to said flange(s). The shell can therefore be longer in the circumferential direction and the attachments do not take up any space in the helmet's spar volume.

[0043] According to an optional embodiment of the invention according to the first aspect, said shell forms a Helmholtz neck, preferably said rim and said shell together delimit said neck. The neck of the shell can be designed as a gutter. The gutter can be bottomless, i.e. open towards the rim. This results in a very simple geometry that can be produced cost-effectively. The communication opening can be located at the end of the neck facing away from the Helmholtz volume. On the other side, the neck is open towards the Helmholtz volume. The communication opening and / or the neck can be arranged on a transverse side of the shell, said transverse side running in the axial direction.

[0044] According to an optional embodiment of the invention according to the first aspect, the Helmholtz volume can be arranged laterally adjacent to the neck, preferably on both of the neck’s longitudinal sides. The Helmholtz volume can extend along the neck at least on one side of the neck, preferably on both sides of the neck. This saves installation space, as the neck does not protrude freely from the shell, but is compactly offset a little back into the shell. It is conceivable that the shell separates the neck from the Helmholtz volume in its longitudinal direction by means of a groove I groove(s) and / or a wall I wall(s), which it preferably forms itself. The groove(s) or wall(s) can run parallel to the neck. This enlarges the volume of the Helmholtz by those areas to the side of the neck. According to an optional embodiment of the invention according to the first aspect, it is conceivable that the groove(s) and / or wall(s) between the Helmholtz volume and the neck is / are sealed, preferably by means of a sealing device, preferably by the outer sealing device. This means that even with this design, a single external sealant can be sufficient. This sealing separates the longitudinal sides of the neck from the Helmholtz volume.

[0045] According to an optional embodiment of the invention according to the first aspect, said shell is a plastic part or a metal part and / or is an injection-molded part or a deep-drawn part. Both plastic (e.g. thermoplastic or thermosetting plastic) and metal (e.g. aluminum) are suitable for cost- effective and time-effective injection molding and deep-drawing of the inventive shell. A plastic shell is easy to produce because it has no base. Therefore, no complex processes, such as blow molding, are required for its production. A metal shell is particularly suitable for welding. The metal shell can be a sheet metal shell. Furthermore, a metal shell is more stable against the effects of forces, so that, for example, forces occurring during the mounting of the shell are possible with greater tolerances. A metal shell is robust and does not break and get loose under tire pusher load.

[0046] According to the invention a set is proposed, comprising a shell mounting device and a shell, each according to the disclosure. The disclosed features of the shell, the connections and the shell mounting device are also to be disclosed as suitable to cooperate with the rim accordingly.

[0047] According to the second aspect of the invention, a vehicle wheel assembly is disclosed comprising a wheel comprising a rim, a shell mounted directly to said rim by means of a material fit connection, wherein said rim and said shell together delimit a Helmholtz volume.

[0048] According to the second aspect of the invention, the shell is not attached to a dedicated rim geometry or, but directly onto said rim using a material fit connection. Said shell is arranged on the outer surface of the rim. The material fit connection attaches the shell to the rim. The material fit connection secures the shell stationary and immovable relative to the rim. This ensures a good effect at all times. The direct mounting of the shell is very cost-effective and can be carried out without additional mounting components. It has also been shown that a material fit connection can be produced cost-effectively. The material fit connection connects the material of the rim with the material of the shell. The rim can be made of a metal, for example aluminum and / or steel.

[0049] Said solution may be applied on applicable existing rim designs as there is no need to change on the rim profile. Said Helmholtz volume is secondary cavity inside a tire cavity. Said Helmholtz volume created by the shell and the rim has a communication opening. Said communication opening can open the Helmholtz volume to a tire cavity. Said communication opening can be delimited by the shell and / or the rim. The communication opening can be arranged on a transverse side of the shell that runs in the axial direction. Thus, creating an interaction between the Helmholtz volume and the tire cavity. The vehicle wheel assembly may comprise a tire arranged on the rim, wherein said tire and said rim together delimit a tire cavity.

[0050] According to an optional embodiment of the invention according to the second aspect, said rim comprises a cylindrical or conical outer circumferential surface to which said shell is attached. This advantageously underlines the fact that no adaptation is required on the rim side in order to arrange the shell there, as it is not dependent on fastening elements that are formed by the rim itself.

[0051] According to an optional embodiment of the invention according to the second second, said shell can be a half-shell and / or open to the rim and / or bottomless. Said shell can be free of an undercut in the radial direction. This makes it simple, cost-effective and easy to manufacture with simple tools. The shell can be in one piece, preferably in one material. This also allows it to be manufactured simply and cost-effectively.

[0052] According to an optional embodiment of the invention according to the second aspect, said material fit connection is realized by gluing or welding or soldering. Each of these variants represents a cost-effective and durable option for fastening to the rim. The material fit connection can bond directly to the outer surface of the rim. The welded material fit connection can be a spotweld.

[0053] According to an optional embodiment of the invention according to the second aspect, said material fit connection extends at most 0.5 mm into the material of the rim. This depth is sufficient to create a durable joint, but shallow enough to avoid thermal damage and aesthetic problems on the rim. Furthermore, said depth avoids a negative durability effect on the rim itself.

[0054] According to an optional embodiment of the invention according to the second aspect, said material fit connection forces said shell onto said rim or maintains a preload that was once applied to the shell. The preload may have been applied during the creation of the material fit connection. The material fit connection is therefore configured in such a way that they apply or maintain a force to the shell that is directed onto the rim in a radial direction. This ensures secure fixing, prevents rattling and seals the Helmholtz volume. It is conceivable that the shell deforms elastically due to the force. According to an optional embodiment of the invention according to the second aspect, it is conceivable that the material fit connection is designed as an elongated seam and / or as spots. The seam is used to create a tighter seal, while the point design reduces costs even further.

[0055] According to an optional embodiment of the invention according to the second aspect, said vehicle wheel assembly comprises more than one shell. By means of a plurality of shells a corresponding number of Helmholtz volumes can be formed, so that the effect is improved. Preferably, the vehicle wheel assembly comprises exactly two shells. The two shells can be arranged diametrically in relation to the rim rotation axis. This improves the effect and avoids imbalance.

[0056] According to an optional embodiment of the invention according to the second aspect, said wheel assembly or said rim has a valve or a valve hole, the shell being arranged such that the communication opening in the circumferential direction of the rim faces away from the valve or a valve hole. If the said wheel assembly comprises several shells, all communication openings can face away from said valve or a valve hole. This orientation of the communication opening(s) prevents the ingress of any liquids into the Helmholtz volume(s) that may enter the tire cavity through said valve. Such a liquid can be a self-sealing-liquid to close an unwanted hole in the tire through which air is leaking. Such fluids are common aids for punctures.

[0057] According to an optional embodiment of the invention according to the second aspect, the material fit connection is arranged at the outer edge(s) or sides of the shell or inside the outer circumference of the shell. The outer circumference may be viewed in the radial direction. The first alternative is advantageous because the material fit connection then arranged close to the outer edge(s), which is advantageous for sealing. Less force needs to be applied. Furthermore, this arrangement can result in the material fit connection simultaneously fastening the shell and sealing the Helmholtz volume. The second alternative is advantageous because it saves installation space, as no fastening needs to be provided outside the shell or on its outer edges. Preferably, said material fit connection is surrounded by said Helmholtz volume, preferably on the respective outer circumference. The material fit connection may be arranged at a distance from the outer edge(s) or longitudinal sides of the shell, which run in the circumferential direction, and / or from the outer edge(s) or the transverse sides of the shell, which run in the axial direction.

[0058] According to an optional embodiment of the invention according to the second aspect, said shell is mounted airtight against said rim and / or against said shell mounting device, preferably by means of at least one sealing device or by said material fit connection. The adjoining areas of the shell on the one hand and the rim on the other are airtight. It is understood that the Helmholtz volume is not completely closed, but has a neck through which the Helmholtz volume is connected to the environment of the shell. The environment can be a tire cavity in the event that a tire is attached to the rim. Preferably, the shell is completely sealed off from the shell environment with the exception of the communication opening. It is conceivable that the shell lies airtight directly against the rim without a dedicated sealant. It is conceivable that the material fit connection is designed in such a way that the force applied to the shell in the radial direction is sufficient to ensure adequate sealing. Said at least one sealing device can be an elastic seal (rubber seal for example), an adhesive tape or an adhesive strip. However, said at least one sealing device can be a glue seam or a weld seam or a solder seam. Said at least one sealing device can be either added / attached to the shell or to the rim, or both.

[0059] According to an optional embodiment of the invention according to the second aspect, said sealing device comprises an outer sealing device arranged on an outer circumference of the Helmholtz volume. Said sealing device seals off the Helmholtz volume from the shell environment. Preferably, said shell has only a single outer sealing device, preferably in one piece.

[0060] According to an optional embodiment of the invention according to the second aspect, the shell as such is free of holes. This makes it very easy and inexpensive to produce.

[0061] According to an optional embodiment of the invention according to the second aspect, the shell can delimit a single Helmholtz volume only. This also makes the geometry less complex and less expensive to manufacture and assemble.

[0062] According to an optional embodiment of the invention according to the second aspect, the shell comprises at least a flange, preferably two flanges on each of its transverse sides, the shell mounting device being attached to said flange(s). The shell can therefore be longer in the circumferential direction and the attachments do not take up any space in the helmet's spar volume.

[0063] According to an optional embodiment of the invention according to the second aspect, said shell forms a Helmholtz neck, preferably said rim and said shell together delimit said neck. The neck of the shell can be designed as a gutter. The gutter can be bottomless, i.e. open towards the rim. This results in a very simple geometry that can be produced cost-effectively. The communication opening can be located at the end of the neck facing away from the Helmholtz volume. On the other side, the neck is open towards the Helmholtz volume. The communication opening and / or the neck can be arranged on a transverse side of the shell, said transverse side running in the axial direction. According to an optional embodiment of the invention according to the second aspect, the Helmholtz volume can be arranged laterally adjacent to the neck, preferably on both of the neck’s longitudinal sides. The Helmholtz volume can extend along the neck at least on one side of the neck, preferably on both sides of the neck. This saves installation space, as the neck does not protrude freely from the shell, but is compactly offset a little back into the shell. It is conceivable that the shell separates the neck from the Helmholtz volume in its longitudinal direction by means of a groove I groove(s) and / or a wall I wall(s), which it preferably forms itself. The groove(s) or wall(s) can run parallel to the neck. This enlarges the volume of the Helmholtz by those areas to the side of the neck.

[0064] According to an optional embodiment of the invention according to the second aspect, it is conceivable that the groove(s) and / or wall(s) between the Helmholtz volume and the neck is / are sealed, preferably by means of a sealing device, preferably by the outer sealing device. This means that even with this design, a single external sealant can be sufficient. This sealing separates the longitudinal sides of the neck from the Helmholtz volume.

[0065] According to an optional embodiment of the invention according to the second aspect, said shell is a plastic part or a metal part and / or is an injection-molded part or a deep-drawn part. Both plastic (e.g. thermoplastic or thermosetting plastic) and metal (e.g. aluminum) are suitable for cost-effective and time-effective injection molding and deep-drawing of the inventive shell. A plastic shell is easy to produce because it has no base. Therefore, no complex processes, such as blow molding, are required for its production. A metal shell is particularly suitable for welding. The metal shell can be a sheet metal shell. Furthermore, a metal shell is more stable against the effects of forces, so that, for example, forces occurring during the mounting of the shell are possible with greater tolerances. A metal shell is robust and does not break and get loose under tire pusher load.

[0066] According to the third aspect of the invention, a vehicle wheel assembly is disclosed comprising a wheel comprising a rim, at least one shell mounting device attached to said rim or a shell by a force fit connection and / or form fit connection and a shell mounted to said rim by means of said shell mounting device, wherein said rim and said shell together delimit a Helmholtz volume, wherein said shell mounting device is fixed in a fixing hole in the rim or in a mounting hole of said shell.

[0067] According to the third aspect of the invention, the shell is not attached to a dedicated rim geometry, but to a separate shell mounting device. The shell mounting device is a separate part from the rim and from the shell. It can also be referred to as a docking station. Said at least one shell mounting device is fixed in a fixing hole in the rim, wherein said hole can be arranged on the outer circumference of said shell. Said shell is arranged on the outer surface of the rim. The shell mounting device therefore forms a connection to the rim in order to attach itself there and another connection to the shell in order to attach the shell. The force fit connection and / or form fit connection attaches the shell mounting device or part of said shell mounting device to the rim. The mounting connection secures the shell to the rim. The shell mounting device and / or the mounting connection secures the shell stationary and immovable relative to the rim. This ensures a good effect at all times. The rim can be made of a metal, for example aluminum and / or steel.

[0068] Said solution may be applied on applicable existing rim designs as there is no need to change on the rim profile. Said Helmholtz volume is secondary cavity inside a tire cavity. Said Helmholtz volume created by the shell and the rim has a communication opening. Said communication opening can open the Helmholtz volume to a tire cavity. Said communication opening can be delimited by the shell and / or the rim. The communication opening can be arranged on a transverse side of the shell that runs in the axial direction. Thus creating an interaction between the Helmholtz volume and the tire cavity. The vehicle wheel assembly may comprise a tire arranged on the rim, wherein said tire and said rim together delimit a tire cavity.

[0069] According to an optional embodiment of the invention according to the third aspect, said at least one fixing hole is covered by a spoke of the rim when viewed in the axial direction. As a result, the fixing hole and the shell mounting device fixed in it are exposed to less dirt.

[0070] According to an optional embodiment of the invention according to the third aspect, said at least one fixing hole is a through hole, reaching from the inner circumferential surface to the outer circumferential surface of the rim.

[0071] According to an optional embodiment of the invention according to the third aspect, said fixing hole extends in the radial direction. This simplifies the attachment of the shell mounting device.

[0072] According to an optional embodiment of the invention according to the third aspect, said rim comprises a cylindrical or conical outer circumferential surface which provides said fixing hole for attaching said shell mounting device. This advantageously underlines the fact that no adaptation is required in the design of the rim in order to arrange the shell there, as it is not dependent on fastening elements that are formed by the rim itself.

[0073] According to an optional embodiment of the invention according to the third aspect, said shell can be a half-shell and / or open to the rim and / or bottomless. Said shell can be free of an under- cut in the radial direction. This makes it simple, cost-effective and easy to manufacture with simple tools. The shell can be in one piece, preferably in one material. This also allows it to be manufactured simply and cost-effectively.

[0074] According to an optional embodiment of the invention according to the third aspect, mounting of the shell to the rim is free of a material fit connection. Advantageously, only mechanical solutions are provided for fastening the shell to the rim, namely exclusively force fit and / or form fit connections. Each of these variants represents a cost-effective and durable option for fastening to the rim.

[0075] According to an optional embodiment of the invention according to the third aspect, said mounting connection is realized by a form fit connection and / or force fit connection, preferably by notching, clipping, screwing, riveting and / or crimping. Each of these variants represents a cost- effective and durable option for fastening to the shell mounting device. Furthermore, each of these variants allows replacing the shell if needed and prevents the shell to be detached from the rim during the vehicle usage. Each of the variants is also suitable for pressing the shell onto the rim or securing a molded-in contact pressure. This serves to seal the Helmholtz volume.

[0076] With regard to notching, the notch can first be created when the shell is attached. The notch can be created or be arranged in the shell mounting device or be created in the shell. The shell mounting device or the shell may comprise a notch. The notch is a self-cut notch. This variant is very cost-effective, as no special geometry requirements need to be placed on the parts to be connected. One part creates its own notches in the other part.

[0077] With regard to clipping, the shell mounting device can comprise a clipping device that is itself connected to the rim via a force fit connection and / or form fit connection and is then clipped with the shell. The shell mounting device may comprise clipping partners. The clipping can be done with a flick of the wrist and positions the shell permanently in a desired position. The clipped connection can also be a reversible and / or damage-free reversible connection. This makes it easy to replace the shell.

[0078] With regard to screwing, said shell mounting device may comprise two screwing partners with corresponding threads. Screwed connections are easy to loosen and reassemble, which facilitates maintenance and repair. Screwing is generally inexpensive and does not require any special tools or complex processes. The screw connection can be a self-locking screw connection, for example, the shell mounting device can comprise a preload device that applies a preload force to the shell mounting device or mounting connection, preferably in a radial direction. Selflocking prevents loosening. With regard to riveting, said shell mounting device may comprise a rivet or a blind rivet or blind rivet nut. The rivet can therefore form the connection with the rim for its own attachment to the rim and be attached to the shell for the attachment of the shell. The mounting connection can be created by plastic deformation of the rivet and / or screwing a screw with the blind rivet nut.

[0079] With regard to crimping, said shell mounting device may comprise a crimping element. The crimping element can therefore form the force fit connection and / or form fit connection with the rim for its own attachment to the rim and be attached to the shell for the attachment of the shell. The mounting connection can be created by plastic deformation of said crimping element.

[0080] According to an optional embodiment of the invention according to the third aspect, said mounting connection and / or said shell mounting device forces said shell onto said rim. The mounting connection and / or said shell mounting device are therefore configured in such a way that they apply a force to the shell that is directed onto the rim in a radial direction. This ensures secure fixing, prevents rattling and seals the Helmholtz volume. It is conceivable that there is a prestress gap between the shell and one of the shell mounting device or a part of the shell mounting device when said force is absent. This prestress gap closes when the mounting connection is established and the preload force is applied. It is also conceivable that the shell deforms elastically due to the force.

[0081] According to an optional embodiment of the invention according to the third aspect, said shell mounting device comprises a first mounting partner attached to the rim by said force fit connection and / or form fit connection and a second mounting partner. The shell mounting device can therefore be in (at least) two parts. The two partners are separate to each other. The first mounting partner is therefore attached to the rim, preferably directly. The second mounting partner can be attached to the shell, preferably before the mounting connection is created. The second mounting partner can be formed by the shell in one piece. The second mounting partner can be formed by the shell, preferably the second mounting partner can be a hole or a recess in the shell, into or through which said first mounting partners engages. The two mounting partners can be attached to each other, preferably whereby creating said mounting connection. Together, the two mounting partners serve to fasten the shell in a cost-effective and low-complexity manner.

[0082] One of the first and second mounting partners can form a support surface for the shell. The shell can rest against the support surface. This ensures a secure end position. The shell can be forced against this support surface due to the shell mounting device and / or the mounting connection. A third mounting partner is also conceivable, preferably in case of a first and second mounting partner. The first, second and third mounting partners can act together as fasteners for the shell. The third mounting partner can be formed by the shell, preferably the third mounting partner can be a hole or a recess in the suffixing hell, into or through which at least one of the other two mounting partners engages, preferably both. Preferably, in case the third mounting partner being a hole or a recess in said shell, said second mounting partner may not be a hole or recess in the shell.

[0083] According to an optional embodiment of the invention according to the third aspect, wherein in the case of a mounting connection by clipping, the two mounting partners (preferably first and second) are clipping partners that can be clipped together, preferably said first and second mounting partners. Basically, clipping requires an undercut on one of the mounting partners and a part that clips behind the undercut on the other partner. The clipping partners can be formed by a male and female part of a snap rivet. The clipping partners can be formed by a male and female part of a snap rivet including a securing pin. The clipping partners can be formed by a snap-hook or arrow-pin and a hole or undercut. The clipping partners can be formed by one or more elastic snap tongue(s) and a hole or undercut. Each of these variants is quick and easy to fit and secures the shell to the rim.

[0084] According to an optional embodiment of the invention according to the third aspect, wherein in the case of a mounting connection by screwing, the two mounting partners (preferably first and second) are screwing partners that can be screwed together by screwing, preferably said first and second mounting partners. The two partners can each comprise a corresponding thread. Said first mounting partner can be a threaded bolt and / or said second mounting partner can be a threaded nut or vice versa. Said first mounting partner can be a threaded socket and / or said second mounting partner can be a threaded screw or vice versa.

[0085] The shell mounting device can also include a preload device. The preload device generates a preload to secure the screw connection, preferably said force acts in a radial direction. It also serves to maintain the screw connection when the respective components are subjected to relaxation. The preload device can either be elastic itself, for example made of rubber, and / or generate the preload force by means of own geometric design. The preload device also prevents damage to the shell when tightening the screw connection, as it increases the tolerance against over-tightening. This applies in particular to a shell made of plastic material.

[0086] According to an optional embodiment of the invention according to the third aspect, wherein in the case of a mounting connection by riveting, the two mounting partners (preferably first and second) can be riveted together by riveting. The first mounting partner can be a rivet, the second mounting partner can be a hole or a recess in the shell. Said rivet can be attached to said rim by said force fit connection and / or form fit connection. Said rivet can be a rivet stud or a rivet sleeve or a blind rivet or blind rivet nut. Said rivet sleeve or blind rivet or blind rivet nut may be plastically deformable on its free end. The plastic deformation and / or screwing a screw with the blind rivet nut leads to a form fit that creates the mounting connection.

[0087] According to an optional embodiment of the invention according to the third aspect, wherein in the case of a mounting connection by crimping, the two mounting partners (preferably first and second) can be crimped together by crimping. The first mounting partner can be a crimp sleeve, the second mounting partner can be a hole or a recess in the shell. Said crimp sleeve can be attached to said rim by said force fit connection and / or form fit connection. Said crimp sleeve may be plastically deformable on its free end. The plastic deformation leads to a form fit that creates the mounting connection.

[0088] According to an optional embodiment of the invention according to the third aspect, it is conceivable that the force-fit connection and / or form-fit connection is identical to the shell mounting connection. Such a design can be created using a rivet, for example. The rivet is fixed in the fixing hole by its plastic deformation and simultaneously mounts the shell. This design is very efficient and cost-effective.

[0089] According to an optional embodiment of the invention according to the third aspect, said first mounting partner is a pin and / or said second mounting partner is a push-on washer or vice versa. The pin is easy to attach. It can extend in a radial direction. The other mounting partner can then also be attached to the pin in the radial direction. The pin can have an undercut, but it can also be free of an undercut. The pin can have a cylindrical shape, preferably at least in the mounting section for the second partner. The second partner can be a push-on washer. The washer can comprise a ring from which clamping tongues project radially inwards. The tongues are preferably elastic. These clamping tongues can press into the first partner with their free ends and form notches there. An undercut on the pin is therefore not necessary. The pin may be made of a softer material than the push-on washer, which makes it easier to form notches. The push-on washer can be made of a metal to facilitate notch formation, preferably spring steel. This also prevents material relaxation, which prevents the mounting connection from loosening unintentionally. The clamping tongues can extend in the opposite direction to the push-on direction when said mounting connection is created. This further secures the mounting connection. The advantages lie in the low costs, the low assembly effort, but at the same time a low push-on force and a very high resistance to loosening is possible. According to an optional embodiment of the invention according to the third aspect, said second mounting partner can be a separate part to said shell and / or permanently attached to said shell or formed in one piece with said shell. Each of these three variants has its own advantages. The first alternative and second alternative allow the second mounting partner to be produced independently of the shell production. This reduces manufacturing costs, especially if the parts are made of different materials. The second alternative enables attachment to the shell even before the mounting connection is realized. This can simplify the manufacturing and assembly process. The third alternative dispenses with a separate mounting partner in relation to the shell, as the shell forms the mounting partner itself. The mounting partner can therefore be formed at the same time as the shell is manufactured. This reduces the number of process steps required during assembly. The shell and said second mounting partner can be formed in one material. This also allows it to be manufactured simply and cost-effectively.

[0090] According to an optional embodiment of the invention according to the third aspect, more than one shell mounting device is assigned to the / each shell, preferably exactly two mounting devices are assigned to the / each shell. It has been shown that two mounting devices are sufficient to securely fasten the shell without negatively affecting its functionality. The shell mounting devices can be spaced apart from each other in the circumferential and / or axial direction.

[0091] According to an optional embodiment of the invention according to the third aspect, said vehicle wheel assembly comprises more than one shell. By means of a plurality of shells a corresponding number of Helmholtz volumes can be formed, so that the effect is improved. Preferably, the vehicle wheel assembly comprises exactly two shells. The two shells can be arranged diametrically in relation to the rim rotation axis. This improves the effect and avoids imbalance. Each shell can comprise a corresponding amount of shell mounting devices, whereby the amount can also be one. Each shell can have its own mounting device(s), which only mount the corresponding shell. This means that each shell can be mounted and / or distributed on the rim independently of other shells.

[0092] According to an optional embodiment of the invention according to the third aspect, said wheel assembly or said rim has a valve or a valve hole, the shell being arranged such that the communication opening in the circumferential direction of the rim faces away from the valve or a valve hole. If the said wheel assembly comprises several shells, all communication openings can face away from said valve or a valve hole. This orientation of the communication opening(s) prevents the ingress of any liquids into the Helmholtz volume(s) that may enter the tire cavity through said valve. Such a liquid can be a self-sealing-liquid to close an unwanted hole in the tire through which air is leaking. Such fluids are common aids for punctures. According to an optional embodiment of the invention according to the third aspect, the or at least one shell mounting device is arranged at the outer edge(s) or sides of the shell or inside the outer circumference of the shell. The outer circumference may be viewed in the radial direction. The first alternative is advantageous because the shell mounting device(s) is / are then arranged close to the outer edge(s), which is advantageous for sealing. Less force needs to be applied. Furthermore, this arrangement can result in the shell mounting device simultaneously fastening the shell and sealing the Helmholtz volume. The second alternative is advantageous because it saves installation space, as no fastening needs to be provided outside the shell or on its outer edges. Preferably, said shell mounting device is surrounded by said Helmholtz volume, preferably on the respective outer circumference. In case more than one shell mounting device is assigned to said shell, all of the shell mounting devices may be surrounded by said Helmholtz volume, preferably on the respective outer circumference. The shell mounting device(s) may be arranged at a distance from the outer edge(s) or longitudinal sides of the shell, which run in the circumferential direction, and / or from the outer edge(s) or the transverse sides of the shell, which run in the axial direction.

[0093] According to an optional embodiment of the invention according to the third aspect, wherein, viewed in the radial direction, if there are exactly two shell mounting devices, they have a linear arrangement which extends in the circumferential direction, if there are exactly three shell mounting devices, they have a triangular arrangement, if there are exactly four devices, they have a quadrangular arrangement.

[0094] According to an optional embodiment of the invention according to the third aspect, said shell is mounted airtight against said rim and / or against said shell mounting device, preferably by means of at least one sealing device. The adjoining areas of the shell on the one hand and the rim and / or the shell mounting device on the other are airtight. It is understood that the Helmholtz volume is not completely closed, but has a neck through which the Helmholtz volume is connected to the environment of the shell. The environment can be a tire cavity in the event that a tire is attached to the rim. Preferably, the shell is completely sealed off from the shell environment with the exception of the communication opening. It is conceivable that the shell lies airtight directly against the rim and / or the shell mounting device without a dedicated sealant. It is conceivable that the shell mounting device and / or the mounting connection are designed in such a way that the force applied to the shell in the radial direction is sufficient to ensure adequate sealing. Said at least one sealing device can be an elastic seal (rubber seal for example), an adhesive tape or an adhesive strip. However, said at least one sealing device can be a glue seam or a weld seam or a solder seam. Said at least one sealing device can be either added / at- tached to the shell or to the rim, or both. According to an optional embodiment of the invention according to the third aspect, said sealing device comprises an outer sealing device arranged on an outer circumference of the Helmholtz volume and / or at least one inner sealing device arranged on an inner circumference of the Helmholtz volume. Both sealing devices seal off the Helmholtz volume from the shell environment. The inner sealing device(s) create(s) an area within the outer circumference of the shell that is sealed off from the Helmholtz volume. A shell mounting device can advantageously be arranged in this area. This is particularly advantageous if the shell has a mounting hole, in which the respective shell mounting device is arranged. Preferably, each shell mounting device is sealed with a single inner sealing device. Preferably, said shell has only a single outer sealing device, preferably in one piece.

[0095] According to an optional embodiment of the invention according to the third aspect, said shell comprises a mounting hole for said shell mounting device, preferably said mounting hole is surrounded on its outer circumference by said Helmholtz volume or said mounting hole is arranged adjacent to said Helmholtz volume. The mounting hole preferably extends in a radial direction. Preferably, each shell mounting device is arranged in a mounting hole, preferably each shell mounting device has its own mounting hole. The mounting hole can be a through hole. It can extend from the outer circumference of the shell to the outer circumference of the rim. This enables easy mounting on the shell mounting device. The wall of the mounting hole can extend in a radial direction; it can surround the shell mounting device. It is conceivable that the wall forms a groove that accommodates a sealing device, preferably on its free end. This simplifies the geometry and achieves a good seal. The groove can be an annular groove and / or be arranged on the end face of the wall.

[0096] According to an optional embodiment of the invention according to the third aspect, the shell as such is free of holes. The shell can at least be free of holes for its mounting. This makes it very easy and inexpensive to produce.

[0097] According to an optional embodiment of the invention according to the third aspect, the shell can delimit a single Helmholtz volume only. This also makes the geometry less complex and less expensive to manufacture and assemble.

[0098] According to an optional embodiment of the invention according to the third aspect, the shell comprises at least a flange, preferably two flanges on each of its transverse sides, the shell mounting device being attached to said flange(s). The shell can therefore be longer in the circumferential direction and the attachments do not take up any space in the helmet's spar volume. According to an optional embodiment of the invention according to the third aspect, said shell forms a Helmholtz neck, preferably said rim and said shell together delimit said neck. The neck of the shell can be designed as a gutter. The gutter can be bottomless, i.e. open towards the rim. This results in a very simple geometry that can be produced cost-effectively. The communication opening can be located at the end of the neck facing away from the Helmholtz volume. On the other side, the neck is open towards the Helmholtz volume. The communication opening and / or the neck can be arranged on a transverse side of the shell, said transverse side running in the axial direction.

[0099] According to an optional embodiment of the invention according to the third aspect, the Helmholtz volume can be arranged laterally adjacent to the neck, preferably on both of the neck’s longitudinal sides. The Helmholtz volume can extend along the neck at least on one side of the neck, preferably on both sides of the neck. This saves installation space, as the neck does not protrude freely from the shell, but is compactly offset a little back into the shell. It is conceivable that the shell separates the neck from the Helmholtz volume in its longitudinal direction by means of a groove I groove(s) and / or a wall I wall(s), which it preferably forms itself. The groove(s) or wall(s) can run parallel to the neck. This enlarges the volume of the Helmholtz by those areas to the side of the neck.

[0100] According to an optional embodiment of the invention according to the third aspect, it is conceivable that the groove(s) and / or wall(s) between the Helmholtz volume and the neck is / are sealed, preferably by means of a sealing device, preferably by the outer sealing device. This means that even with this design, a single external sealant can be sufficient. This sealing separates the longitudinal sides of the neck from the Helmholtz volume.

[0101] According to an optional embodiment of the invention according to the third aspect, said shell is a plastic part or a metal part and / or is an injection-molded part or a deep-drawn part. Both plastic (e.g. thermoplastic or thermosetting plastic) and metal (e.g. aluminum) are suitable for cost- effective and time-effective injection molding and deep-drawing of the inventive shell. A plastic shell is easy to produce because it has no base. Therefore, no complex processes, such as blow molding, are required for its production. A metal shell is particularly suitable for welding. The metal shell can be a sheet metal shell. Furthermore, a metal shell is more stable against the effects of forces, so that, for example, forces occurring during the mounting of the shell are possible with greater tolerances. A metal shell is robust and does not break and get loose under tire pusher load.

[0102] Directional indications, such as circumferential direction, radial direction, axial direction, rim rotation axis are to be understood in relation to the rim unless otherwise specified. Axial and axial direction are parallel to the longitudinal axis or rotation axis. Radial and radial direction are perpendicular to the longitudinal axis. The circumference and circumferential direction run around the rotation axis. Production is understood to mean a process by which a component is manufactured. Assembly should be understood as a process by which a component is fixed at or in its operational destination. If components or features are disclosed more than once, embodiments and advantages that are described for only one of the components / features should also be deemed to be disclosed in an optional manner for the other corresponding components / features.

[0103] Further features, details and advantages of the invention are apparent from the wording of the claims and from the following description of embodiments with reference to the drawings.

[0104] The drawings shows in:

[0105] Fig. 1 a conceptual view of a first aspect of the invention in a longitudinal cross section, Fig. 2 a conceptual view of a second aspect of the invention in a longitudinal cross section, Fig. 3 a conceptual view of a third aspect of the invention in a longitudinal cross section, Fig. 4 a perspective view of a rim,

[0106] Fig. 5 a view of the rim according to fig. 4 in the axial direction,

[0107] Fig. 6 a sectional view through the rim in the longitudinal direction,

[0108] Fig. 7 a detailed perspective view of a shell of fig. 4,

[0109] Fig. 8 a perspective cross-sectional view of the shell according to fig. 7,

[0110] Fig. 9 a perspective cross-sectional view of a shell mounting device according to fig. 4,

[0111] Fig. 10 a view at the shell,

[0112] Fig. 11 a detailed view at a mounting partner according to fig. 7,

[0113] Fig. 12 a detailed view at a notched mounting connection according to fig. 7,

[0114] Fig. 13 a perspective view of a clipping partner,

[0115] Fig. 14 a perspective view of another clipping partner,

[0116] Fig. 15 a detailed view at a clipped mounting connection,

[0117] Fig. 16 a detailed view at another clipped mounting connection,

[0118] Figs. 17a-17c longitudinal sectional views of creation of another clipped mounting connection, Fig. 18 a detailed view of screwing partners,

[0119] Fig. 19 a detailed view at a screwed mounting connection,

[0120] Fig. 20 a detailed view of other screwing partners,

[0121] Fig. 21 a detailed view at another screwed mounting connection,

[0122] Fig. 22 a detailed view at a riveted mounting connection,

[0123] Fig. 23 a detailed view at another riveted mounting connection,

[0124] Fig. 24 a view of a rim in the axial direction,

[0125] Fig. 25 a detailed view at another riveted mounting connection and Fig. 26 a detailed view at another riveted mounting connection.

[0126] In the figures, identical or corresponding elements are each designated with the same reference signs and are therefore not described again unless appropriate. Features already described are not described again in order to avoid repetition and are applicable to all elements with the same or corresponding reference signs, unless explicitly excluded. The disclosures contained in the entire description can be applied mutatis mutandis to identical parts with identical reference signs or identical component designations. The position details selected in the description, such as top, bottom, side, etc., also refer to the directly described and illustrated figure and are to be transferred analogously to the new position if the position is changed. Furthermore, individual features or combinations of features from the different embodiments shown and described can also represent independent, inventive solutions or solutions according to the invention.

[0127] Fig. 1 depicts a first aspect of the invention in a conceptual manner. A vehicle wheel assembly 1 is depicted, comprising a wheel 100 comprising a rim 102, at least one shell mounting device 200 attached to said rim 102 by a material fit connection 202 and a shell 300 arranged on the rim 102 by means of said shell mounting device 200 creating a mounting connection 204 therefore. Said rim 102 and said shell 300 together delimit a Helmholtz volume V. Said shell mounting device 200 and said shell 300 constitute a set 4.

[0128] Fig. 2 depicts a second aspect of the invention in a conceptual manner. A vehicle wheel assembly 2 is depicted, comprising a wheel 100 comprising a rim 102, a shell 300 mounted directly to said rim 102 by means of a material fit connection 202, wherein said rim 102 and said shell 300 together delimit a Helmholtz volume V.

[0129] Fig. 3 depicts a thrid aspect of the invention in a conceptual manner. A vehicle wheel assembly 3 is depicted, comprising a wheel 100 comprising a rim 102, at least one shell mounting device 200 attached to said rim 102 by a force fit connection and / or form fit connection 203 and a shell 300 mounted to said rim 102 by means of said shell mounting device, wherein said rim 102 and said shell 300 together delimit a Helmholtz volume V, wherein said shell mounting device 200 is fixed in a fixing hole 110 in the rim 102. Said shell mounting device 200 and said shell 300 constitute a set 4.

[0130] Figs. 2-9 depict an embodiment according to the first aspect of the invention in different views. Said figures will be described together. Said wheel 100 comprises said rim 102 and a disk 104, forming spokes 112. The rim 102 has an outer circumferential surface 106 being cylindrical or conical. As can be seen, there is no tire on the rim 102 yet. The tire delimits a tire cavity with the rim 102. A valve hole 108 is formed in the rim 102. A valve is also not shown in valve hole 108. The mounting connection 204 is created by notching, but not limited to. The shell 300 has two shell mounting device 200. The shell mounting devices 200 are spaced apart from each other in the circumferential direction II, having a linear arrangement extending in circumferential direction II. For ease of reading, only one of these shell mounting devices 200 is described below, but both are identical. The shell mounting device 200 comprises a first mounting partner 206 attached to the rim 102 by said material fit connection 202. Said first mounting partner is a pin 206.1 extending in the radial direction R and free of an undercut. The pin 206.1 has a cylindrical shape, preferably at least in the mounting section for a second mounting partner 208. The shell mounting device 200 comprises said second mounting partner 208 being a separate part to said shell 300 and permanently attached to said shell 300. Said second mounting partner 208 is a push-on washer 208.1 comprising a ring from which elastic clamping tongues 216 project radially inwards. The shell 300 together with the second mounting partner 208 is attached to the first mounting partner 206 in the radial direction R. The clamping tongues 216 then press into the first partner 208 with their free ends and form notches 218 there. Hence, the notches 218 are a self-cut notch.

[0131] The shell mounting device 200 is a separate part from the rim 102 and from the shell 300. Said shell mounting device 200 is attached to the outer surface 106 of the rim 102. Said shell 300 is arranged on the outer surface 106 of the rim. The shell 300 is secured stationary and immovable relative to the rim 102. Said mounting connection 204 and / or said shell mounting device 200 force said shell 300 onto said rim 102. The shell mounting device 200 is in two parts 206, 208.

[0132] The shell 300 is a half-shell, open to the rim 102 and bottomless. Said shell 300 is free of an undercut in the radial direction R. The shell 300 is in one piece, preferably in one material. The shell delimits a single Helmholtz volume V only having a communication opening 310. Said communication opening 310 opens the Helmholtz volume V to a tire cavity and is delimited by the shell 300 and the rim 102.

[0133] Said shell 300 forms a bottomless Helmholtz neck 314, the neck 314 being delimited together by said rim 102 and said shell 300. The neck 314 is designed as a gutter being bottomless, i.e. open towards the rim 102. The communication opening 310 is located at the end of the neck 314 facing away from the Helmholtz volume V and facing away from the valve hole 108. On the other side, the neck 314 is open towards the Helmholtz volume V. The communication opening 310 and / or the neck 314 can be arranged on a transverse side 320 of the shell 300. The Helmholtz volume V is arranged laterally adjacent to the neck 314 on both of the neck’s 314 longitudinal sides. Hence, the Helmholtz volume V extends along the neck on both longitudinal sides of the neck 314. The shell 300 separates the neck 314 from the Helmholtz volume V in its longitudinal direction by means of grooves 312 or walls, the grooves 312 or walls being formed by the shell 300 itself. The groove(s) 312 and / or wall(s) run parallel to the neck 314.

[0134] Said shell 300 comprises a mounting hole 308 for each of its two shell mounting devices 200. Said mounting holes 308 are surrounded on their outer circumference by said Helmholtz volume V. The mounting hole 308 extends in the radial direction R, whereby each shell mounting device 200 is arranged in a respective mounting hole 308, preferably each shell mounting device 200. The mounting holes 308 are through holes extending from the outer circumference of the shell to the outer circumference of the rim or to the outer surface 106 of the rim 102. The wall 322 of each mounting hole 308 extends in the radial direction R and surrounds the shell mounting device 200. Each wall 322 forms an annular groove 324 that accommodates a sealing device on its free end, namely an inner sealing device 305 preferably on its free end.

[0135] Said 300 shell is mounted airtight against said rim 102 by means an outer sealing device 304 arranged on an outer circumference 316 of the Helmholtz volume V and two one inner sealing devices 305 arranged on an inner circumference of the Helmholtz volume V. It is understood that the Helmholtz volume V is not completely closed, but has said neck 314 through which the Helmholtz volume V is connected fluidical ly to the environment of the shell 300. The shell 300 is completely sealed off from the shell environment with the exception of the communication opening 310. Said sealing devices 304, 305 are rubber seals. The inner sealing devices 305 each create an area within the outer circumference 316 of the shell 300 that is sealed off from the Helmholtz volume V. A shell mounting device 200 is arranged in each of this areas. Each shell mounting device 200 is sealed with a single inner sealing device 305. Said shell 300 has a single outer sealing device 304 only, being in one piece. Furthermore, the grooves 312 and / or walls between the Helmholtz volume V and the neck 314 are sealed as well by means of said single outer sealing device 304.

[0136] Said vehicle wheel assembly 1 comprises exactly two shells 300, arranged diametrically in relation to the rim rotation axis X. Each shell 300 having a corresponding amount of shell mounting devices 200, the respective communication openings 310 facing away from the valve hole 108 in the circumferential direction II.

[0137] The shell mounting device 200 is arranged inside the outer circumference 316 of the shell 300, viewed in the radial direction R. The shell mounting device 200 is arranged at a distance from the outer edges 306 or longitudinal sides 318 of the shell 300, which run in the circumferential direction II, and from the transverse sides 320 of the shell 300, which run in the axial direction A. Fig. 10 depicts the shell 300 as viewed from the rim 106. As can be seen, the shell is free of undercuts and the the single outer sealing device 304 runs along the outer circumference but also between the Helmholtz volume V and said neck 314 along said neck’s 314 longitudinal direction.

[0138] Figs. 11 and 12 depict the mounting connection 204 by notching in further detail. Fig. 11 depicts a push-on washer 208.1, being a second mounting partner 208 along its longitudinal axis. The clamping tongues 216 project radially inwards. Each tongue has a free end to create a notch 218 in the first mounting partner 206. Fig. 12 depicts the pushed-on state in which both partners 206, 208 are mounted by notching.

[0139] Fig. 13 depicts a first 206 or second mounting partner 208, used for a mounting connection by clipping. The depicted clipping partner is formed by elastic four snap-hooks, having undercuts 220.

[0140] Fig. 14 depicts a first 206 or second mounting partner 208, used for a mounting connection by clipping. The depicted clipping partner is formed by an arrow-pin having an undercut.

[0141] Fig. 15 depict the mounting connection 204 by clipping in further detail. A first mounting partner 2061 first clipping partner is formed by said arrow-pin according to fig. 14. A second mounting partner 2081 second clipping partner is formed by elastic snap tongues 222 and a mounting hole 308 centrally to said snap tongues 222. Said second mounting partner 208 is formed by the shell 300 in one piece. Furthermore, said second mounting partner 208 is arranged at a flange 326 of the shell 300.

[0142] Fig. 16 depicts another embodiment of a mounting connection 204 by clipping. The first clipping partner 206 reaches through the mounting hole 308, whereby its elastic snap tongues 222 rest against the undercut 220. Said first clipping partner 206 comprises a support surface 224 for the shell 300. The shell 300 rests against the support surface 224.

[0143] Figs. 17a to 17c depicts another embodiment of a mounting connection 204 by clipping. Said connection comprises three mounting partners 206, 208, 226. The first 206 and second clipping partners 208 are formed by a male and female part of a snap rivet including a securing pin 228. The third mounting partner 226 is formed a hole in the shell 300 into or through which at least one of the other two mounting partners 206, 208 engages. Prior to clipping, a prestress gap 230 is located between the shell 300 and the shell mounting device 200 or its mounting partner 206. This prestress gap 230 closes when the mounting connection 204 is established and the preload force 214 in Radial direction R is applied. It is also conceivable that the shell 300 deforms elastically due to the force.

[0144] Figs. 18 and 19 depicts another embodiment of a mounting connection 204 by screwing. Said first mounting partner 206 is established by a threaded bolt 206.2 having a thread 210. Said second mounting partner 208 is established by a nut 208.2 having a corresponding thread 212. The screw connection is a self-locking screw connection, as the shell mounting device 200 comprise a preload device 214 that applies a preload force to the shell mounting device 200 or mounting connection 204. A third mounting partner 226 is formed a hole in the shell 300 into or through which at least one of the other two mounting partners 206, 208 engages. A flange 326 of the shell 300 and a tire 400 forming a tire cavity C are depicted as well.

[0145] Figs. 20 and 21 depicts another embodiment of a mounting connection 204 by screwing. The figures are similar to the two previous figures 18 and 19, but now a reversal is shown. Said first mounting partner 206 is established by a threaded socket 206.3 having a thread 210. Said second mounting partner 208 is established by a screw 208.3 having a corresponding thread 212. The screw connection is a self-locking screw connection, as the shell mounting device 200 comprise a preload device 214 that applies a preload force to the shell mounting device 200 or mounting connection 204. A third mounting partner 226 is formed a hole in the shell 300 into or through which at least one of the other two mounting partners 206, 208 engages. A flange 326 of the shell 300 and a tire 400 forming a tire cavity C are depicted as well.

[0146] Fig. 22 depicts another embodiment of a mounting connection 204 by riveting. Said connection comprises a first mounting partner 206 that is rivet stud 206.4, wherein a second mounting partner 208 is a hole 208.4 in the shell 300. Said rivet stud 206.4 can be attached to said rim 102 by said material fit connection 202. Said rivet stud 206.4 is plastically deformed on its free end to create a form fit with the shell 300.

[0147] Fig. 23 depicts another embodiment of a mounting connection 204 by riveting. Said connection comprises a first mounting partner 206 that is rivet sleeve 206.5, wherein a second mounting partner 208 is a hole 208.4 in the shell 300. Said rivet sleeve 206.5 can be attached to said rim 102 by said material fit connection 202. Said rivet sleeve 206.5 is plastically deformed on its free end to create a form fit with the shell 300.

[0148] Fig. 24 depicts an embodiment according to the second aspect of the invention. The vehicle wheel assembly 2 comprises a wheel 100 comprising a rim 102, a shell 300 mounted directly to said rim 102 by means of the material fit connection 202, wherein said rim 102 and said shell 300 together delimit a Helmholtz volume V. Said material fit connection 202 forces said shell 300 onto said rim 102 or maintains a preload that was once applied to the shell 300 during the creation of the material fit connection 202. The material fit connection 202 is designed as an elongated seam, wherein said seam is used to create a tighter seal. Said material fit connection 202 is arranged at the outer edges 306 of the shell 300. The shell 300 as such is free of holes.

[0149] Fig. 25 depicts an embodiment according to the third aspect of the invention. Here, only a mounting connection is depicted. The vehicle wheel assembly 3 comprising a wheel 100 comprising a rim 102, at least one shell mounting device 200 attached to said rim 102 by a force fit connection and / or form fit connection 203 and a shell 300 mounted to said rim 102 by means of said shell mounting device 200, wherein said rim 102 and said shell 300 together delimit a Helmholtz volume V, wherein said shell mounting device 200 is fixed in a fixing hole 110 in the rim 102. Said connection 203 comprises a blind rivet 206.6 for attaching the shell 300 to the rim 102. Further mounting partners are said holes 110 of the rim 102 and said hole 208.4 of said shell 300. Said at least one fixing hole 110 is covered by a spoke 112 of the rim 102 when viewed in the axial direction A. The at least one fixing hole 110 is a through hole and extends in the radial direction R. Said form fit connection 203 is identical to said mounting connection.

[0150] Fig. 26 depicts another embodiment according to the third aspect of the invention, wherein a blind rivet nut 206.7 is used. The blind rivet nut 206.7 is mounted to the shell 300 by plastic deformation, defining a mounting connection 204. A screw 208.3 is screwed into said blind rivet nut 206.7, thereby mounting said shell 300 to said rim 102 and defining said form fit connection 203.

[0151] The invention is not limited to one of the embodiments disclosed, but can be modified in many different ways. All features and advantages resulting from the claims, the description and the drawing, including design details, spatial arrangements and process steps, can be essential to the invention both individually and in a wide variety of combinations.

[0152] All combinations of at least two of the features disclosed in the description, the claims and / or the figures fall within the scope of the invention.

[0153] In order to avoid repetition, features disclosed according to the device should also be regarded as disclosed according to the method and be claimable. Likewise, features disclosed according to the method should be considered to be disclosed according to the device and be claimable. List of reference signs vehicle wheel assembly 300 shell vehicle wheel assembly 304 outer sealing device vehicle wheel assembly 305 inner sealing device set 306 edge 308 mounting hole wheel 310 opening rim 312 groove disk 314 Helmholtz neck surface 316 outer circumference valve hole 318 longitudinal side fixing hole 320 transverse sides spoke 322 wall

[0154] 324 groove shell mounting device 326 flange material fit connection form fit connection 400 tire mounting connection first mounting partner A axial direction pin C tire cavity bolt R radial direction socket U circumferential direction rivet stud V Helmholtz volume rivet sleeve X rotation axis blind rivet blind rivet nut second mounting partner push-on washer nut screw hole thread thread preload device clamping tongue notch undercut snap tongue support surface third mounting partner securing pin prestress gap

Claims

Claims1. Vehicle wheel assembly (1) comprising: a wheel (100) comprising a rim (102), at least one shell mounting device (200) attached to said rim (102) by a material fit connection (202) and a shell (300) arranged on the rim (102) by means of said shell mounting device (200) creating a mounting connection (204) therefore,- wherein said rim (102) and said shell (300) together delimit a Helmholtz volume (V).

2. Vehicle wheel assembly (1) according to claim 1, characterized in that said material fit connection (202) is realized by gluing or welding or soldering.

3. Vehicle wheel assembly (1) according to any of the preceding claims, characterized in that said mounting connection (204) is realized by a form fit connection and / or force fit connection, preferably by notching, clipping, screwing, riveting and / or crimping, or gluing or welding or soldering.

4. Vehicle wheel assembly (1) according to any of the preceding claims, characterized in that said shell mounting device (200) comprises a first mounting partner (206) attached to the rim (102) by said material fit connection (202) and a second mounting partner (208).

5. Vehicle wheel assembly (1) according to claim 4, characterized in that said first mounting partner (206) is a pin (206.1) and / or said second mounting partner (208) is a push-on washer (208.1) or vice versa.

6. Vehicle wheel assembly (1) according to one of claims 4 or 5, characterized in that said second mounting partner (208) can be a separate part to said shell (300) and / or permanently attached to said shell (300) or formed in one piece with said shell (300).

7. Vehicle wheel assembly (1) according to any of the preceding claims, characterized in that said vehicle wheel assembly (2, 3) comprises more than one shell (300).

8. Vehicle wheel assembly (1) according to any of the preceding claims, characterized in that the or at least one shell mounting device (200) is arrangedat the outer edge(s) (306) of the shell (300) or inside the outer circumference (316) of the shell (300).

9. Vehicle wheel assembly (1) according to any of the preceding claims, characterized in that said shell (300) is mounted airtight against said rim (102) and / or against said shell mounting device (200), preferably by means of at least one sealing device (304, 305).

10. Vehicle wheel assembly (1) according to claim 9, characterized in that said sealing device (304, 305) comprises an outer sealing device (304) arranged on an outer circumference of the Helmholtz volume (V) and / or at least one inner sealing device (305) arranged on an inner circumference of the Helmholtz volume (V).

11. Vehicle wheel assembly (1) according to any of the preceding claims, characterized in that said shell (300) comprises a mounting hole (308) for said shell mounting device (200), preferably said mounting hole (308) is surrounded on its outer circumference by said Helmholtz volume (V) or said mounting hole (308) is arranged adjacent to said Helmholtz volume (V).

12. Vehicle wheel assembly (1) according to any of the preceding claims, characterized in that said shell (300) forms a Helmholtz neck (314), preferably said rim (102) and said shell (300) together delimit said neck (314).

13. Vehicle wheel assembly (1) according to any of the preceding claims, characterized in that said shell (300) is a plastic part or a metal part and / or an injection-molded part or a deep-drawn part.

14. Vehicle wheel assembly (2) comprising: a wheel (100) comprising a rim (102), a shell (300) mounted directly to said rim (102) by means of a material fit connection (202),- wherein said rim (102) and said shell (300) together delimit a Helmholtz volume (V).

15. Vehicle wheel assembly (3) comprising: a wheel (100) comprising a rim (102),at least one shell mounting device (200) attached to said rim (102) or a shell (300) by a force fit connection and / or form fit connection (203) and a shell (300) mounted to said rim (102) by means of said shell mounting device (200), - wherein said rim (102) and said shell (300) together delimit a Helmholtz volume (V),- wherein said shell mounting device (200) is fixed in a fixing hole (110) in the rim (102) or in a mounting hole (308) of said shell (300).

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