Driving tube and vehicle wheel

Abstract

The invention relates to a tire tube (1) for a pneumatic vehicle tire, preferably for a light vehicle, particularly preferably for a bicycle and / or a wheelchair and / or a motorcycle, having a tube body (3) comprising a thermoplastic elastomer (TPE). Improved puncture resistance with only slightly higher rolling resistance, as well as improved recycling properties, are made possible by the tube body (3) having a protective layer (4) with reinforcements at least in its zenith (99). The invention also relates to a vehicle wheel comprising such a tire tube.

Description

The invention relates to a travel hose for a vehicle, preferably for a light vehicle, particularly preferably for a bicycle and / or an hospital elevator and / or a motorcycle, having a hose body made of a thermoplastic elastomer. The invention further relates to a vehicle wheel having such a hose.Hoses for vehicles, preferably for light vehicles, particularly preferably for a bicycle and / or an hospital elevator and / or a motorcycle, are generally known. The driving tube for a vehicle is mountable together with a pneumatic vehicle tire suitable for the vehicle on a rim to form a wheel suitable for the vehicle. The travel hose generally consists at least of a hose body delimiting an air chamber and of a valve stem with valve, by means of which the air chamber of the vehicle hose can be acted upon with air.In a wheel with a vehicle hose, the vehicle hose generally fulfils the primary task of ensuring the air tightness of the wheel during regular operation. However, the vehicle hose can also contribute to reducing the frequency of the wells.In order to seal damage to the hose, it is known to provide sealing means, such as liquid-viscous filling materials, in the interior of the hose, which sealing means are intended to seal the hole in the event of damage to the hose.However, such measures are often associated with an increased material outlay and, associated therewith, an increased rolling resistance of the tire and disadvantageous driving behavior.DE 3021946 A1 discloses airless tires having an inner solid filler body made of a polyurethane containing air bubbles. Although the tires are hereby less sensitive to puncture, this is connected with a considerable use of material.Various strategies are known for reducing the tire frequency of pneumatic vehicle tires per se. Thus, the tire itself can be reinforced, for example by increasing the rubber thickness of individual components of the tire, such as the tread, or by additional high-strength fabric plies. Such measures make it possible, for example, to make it more difficult or even prevent a solid body from penetrating through the tire.Thus, DE 10 2005 018 742 A1 and EP 1 682 362 B2 each disclose a bicycle tire which, in a protective layer of the tire arranged in addition to the carcass, contains high-strength multifilament yarns with polyester polyarylate filaments which are spun from molten liquid crystal polymer.The development is going to improved sustainability. As a result, tire recycling is gaining greater importance, even for tires for light vehicles, in particular bicycle tires.However, the above-mentioned protective plies integrated into the tire have the disadvantage that such high-strength reinforcing members are rather not brittle due to the combination of comparatively high tear strength with high flexibility. However, this in turn is disadvantageous for the tire recycling which is gaining in importance, since the reinforcing members do not break well during the shearing of the comminution. To avoid the associated disadvantages, an additional method step would be necessary.It was the primary object of the present invention to eliminate or at least reduce the disadvantages of the prior art described above. The primary object here was to provide a hose and a vehicle wheel for a vehicle, preferably for a light vehicle, particularly preferably for a bicycle and / or an infant chair and / or a motorcycle, which has improved durability with only slightly higher rolling resistance and which enables improved recycling.The object is achieved with respect to the traveling hose in that the hose body has a protective layer with reinforcing elements at least in its zenith.The protective layer is thus not part of a tire, but is a component of the travel hose. It has been found that the protective layer is also excellently suitable as part of the hose for improving the puncture protection. Thus, with only a low increased weight, a clearly improved robustness of the hose with respect to puncture and other injuries can be achieved. In the case of a puncture of the travel hose, the thermoplastic elastomer often already seals the puncture channel such that a greater loss of air does not occur and travel can be ended.At the same time, the hose having the improved tire tire protection properties enables the use of a tire without additional measures on the tire, which measures are generally disadvantageous with regard to rolling resistance and / or recycling ability. Because the reinforcing elements are part of the hose and not of the tire, they can be easily recycled. Complicated removal of the protective layer from a tire, for example, is therefore not necessary. Recycling of the tire and the hose comprising the reinforcing members is possible independently.The use of the thermoplastic elastomer in the hose also makes it possible to easily separate the reinforcing elements from the thermoplastic elastomer.Thermoplastic elastomers (TPE) are multi-phase systems: they have a soft phase determining the elastic properties and having a glass transition temperature below the service temperature, and a thermoplastic hard phase determining the thermoplastic properties and not soluble in the soft phase, which determines the melting range.The TPE can be liquefied by the action of heat and can thus be easily separated from further materials of the hose. The TPE thus extracted can be recycled. Recycling, in particular of the same type, is facilitated as a result.A further advantage is that the hose enables a simple, retrofittable improvement of the tire protection of a wheel.Thus, a hose is easily provided which has an improved durability with only slightly higher rolling resistance and which enables an improved recycling.The TPE can be arranged at least over the entire longitudinal extension of the hose body. The TPE can be arranged over the entire circumference of a cross section of the hose body taken perpendicular to the longitudinal direction U of the hose body. The hose body may consist of the protective layer and the TPE.The term "light vehicle" in the sense of the application denotes vehicles with a free mass of at most 425 kg (without batteries in electric vehicles), preferably bicycles and / or hospital chairs and / or motor bicycles and / or vehicles of vehicle class L in the sense of the EU Regulation 168 / 2013, which each meet the requirements of the free mass of at most 425 kg.The light vehicle, preferably bicycle, can be driven purely by muscle power and thus have no drive motor. The light vehicle, preferably a bicycle, can also have a drive motor, preferably an electric motor, for driving the light vehicle. The preferably electric drive motor can be designed as an auxiliary motor for step assistance or as a sole drive of the vehicle. The light vehicle, preferably bicycle, can be designed as a cargo vehicle. The light vehicle may include two, three, four, or more wheels.Motor vehicles of vehicle class L in the sense of EU Regulation 168 / 2013 include, in particular, vehicles according to classes L1e and / or L2e and / or L3e and / or L4e and / or L5e and / or L6e.Advantageous embodiments of the invention are explained below.An advantageous embodiment is given in that the TPE is an expanded closed-pore TPE. Expanded closed-pore thermoplastic polyurethane has been found to be particularly suitable.It has been found that the expanded, i.e. foamed, closed-pore TPE is excellently suitable for the tube body.The airtightness of the tube is further determined by the expanded closed-pore TPE. The expanded closed-pore TPE combines a low weight for the material thickness of the tube body with high durability. In addition, the hose is distinguished by only a low hysteresis loss because of the high air content of the expanded TPE. Likewise, the flexibility and the travel properties of a pneumatic tire are only slightly limited by such a hose.The expanded closed pore TPE has high elasticity. In the case of puncture of the hose, the hose body made of the expanded closed-pore TPE then seals the puncture channel in such a way that a greater loss of air is avoided or reduced.A hose is thus provided which has improved durability with at the same time only slightly deteriorated rolling resistance.It is expedient if the tube body comprising the expanded closed-pore TPE has a minimum material thickness Dminof at least 0.5 mm, preferably of at least 5 mm, particularly preferably of at least 8 mm.The expanded closed-pore TPE combines a low weight for the minimum material thickness of the tube body with high durability. The increased material thickness of such a hose body reduces the probability of a complete puncture of the hose body by a foreign body. At the same time, the tube body made of the expanded closed-pore TPE with the increased minimum material thickness Dmin makes it possible to improve emergency running properties even with complete air loss due to its own structural strength.The material thickness, in particular the minimum material thickness Dmin, is measured on the pressureless hose body perpendicular to an outwardly pointing surface of the hose body.An advantageous embodiment is provided in that the thermoplastic elastomer is present homogeneously.The TPE is not expanded. Such a hose body can be produced easily and can be of thin-walled design.An advantageous embodiment is given in that the thermoplastic elastomer is a block copolymer, in particular one produced by block copolymerization, preferably a thermoplastic polyurethane (TPE-U). Block copolymers are suitable for the tubular body both as TPE present in expanded closed-pore form and as TPE present homogeneously, preferably as TPE present in expanded closed-pore form.Advantageous block copolymers are thermoplastic polyurethanes (TPE-U) made of polyester and polyurethane (PU) and / or made of polyether (PE) and polyurethane (PU) and / or thermoplastic polystyrene-polydiene block copolymers (TPE-S) made of polyisoprene (IR) and polystyrenes (PS) and / or made of polyethylene (PE) and polystyrenes (PS) and / or made of polybutylene (PB) and polystyrenes (PS) and / or thermoplastic polyester elastomers (TPE-E) made of polyether and aromatic polyester and / or thermoplastic polyether-polyamide elastomers (TPE-A) made of polyether and aliphatic polyamide and / or ethylene-vinyl acetate rubber (EVM) with 20-40 weight percent vinyl acetate.Thermoplastic polyurethane (TPE-U) has proven to be particularly advantageous.Thermoplastic polyurethane is distinguished by advantageous rolling resistance properties. Thermoplastic polyurethane is also characterized by its excellent recycling properties. Separation of the materials by hot filtration enables material recycling of the same type. With regard to chemical recycling, no feed stock separation into polyurethane and reinforcing materials is necessary, since unpolymerized constituents can be separated and used further.It is desirable for the TPE-U to be expanded closed-pore thermoplastic polyurethane. It may be the material sold by BASF SE under the trade name Infinergy®.However, it is also expedient if the TPE-U is homogeneous thermoplastic polyurethane.Other thermoplastic elastomers are suitable. These may be present in homogeneous or expanded form in closed-pore form, preferably in homogeneous form.Advantageous examples are mixtures of incompatible polymers, such as uncrosslinked thermoplastic elastomers (TPE-O) made of ethylene-propylene rubber (EPM) and polypropylene (PP) and / or of ethylene-propylene-diene rubber (EPDM) and polypropylene (PP) and / or crosslinked thermoplastic elastomers (TPE-V) made of ethylene-propylene rubber (EPDM) and polypropylene (PP) and / or of acrylonitrile-butadiene rubber (nitrile rubber, NBR) and polypropylene (PP) and / or of ethylene-vinyl acetate copolymers (EVA) and polyvinylidene chloride (PVDC).Partially crystalline polymers mixed with plasticizers, such as polyvinyl chloride (plasticized PVC) mixed with plasticizers and / or natural rubber mixed with olefins, are also advantageous.Further possibilities follow from the modification of rubbers, for example by hydrochlorination of natural rubber and also sulphonic cyclization of natural rubber.An advantageous embodiment is provided in that the protective layer of the hose body is arranged at least in the zenith radially outside the TPE of the hose body and / or that the protective layer is arranged completely or partially embedded in the TPE of the hose body.In the case of the protective layer arranged radially outside the TPE of the hose body, thermoplastic elastomer of the hose body is arranged in the zenith only radially inside the protective layer. A protective layer arranged radially outside the TPE of the hose body protects particularly effectively against penetration of a solid body from the outside. At the same time, the hose body can be easily produced.In the case of the protective layer arranged completely or partially embedded in the TPE of the hose body, thermoplastic elastomer of the hose body is arranged in the zenith both radially outside and radially inside the protective layer. This makes it possible to achieve particularly good embedding of the protective layer in the hose body with simultaneously good recycling capability.An advantageous embodiment is provided in that the hose is a closed hose or an open hose.A closed hose allows particularly simple handling.An open hose can be used alone or in combination of the open hose according to the invention with a conventional closed hose and / or with a seal milk.The protective effect of the protective layer is substantially influenced by the reinforcing elements.The reinforcing members may be formed from one fiber or from a plurality of fibers.A reinforcement made of a fiber is formed from a single filament. A reinforcement made of a plurality of fibers can be designed in the form of a filament bundle or a yarn or a cord.A reinforcing member comprising a material can be formed entirely or partially from this material. In particular, all the fibers of the reinforcing element can be formed from this material. A reinforcing member comprising a material can also be formed only partially from this material. In particular, the reinforcing element can have one or more fibers made from this material and at least one fiber made from a material different from this material.An advantageous embodiment is given in that the reinforcing members have a tensile strength density of at least 0.04 GPa / (g / cm^3), preferably of at least 0.3 GPa / (g / cm^3), particularly preferably of at least 1.8 GPa / (g / cm^3). The tensile strength density is the tensile strength per mass density.When reinforcing members having a tensile strength density lower than 0.04 GPa / (g / cm^3) are used, there is no sufficient protective effect provided by the protective layer.Even a tensile strength density of at least 0.04 GPa / (g / cm^3) makes possible an improved anti-breakdown safety with advantageous rolling resistance by using solid lightweight materials.A preferred tensile strength density of at least 0.3 GPa / (g / cm^3) allows even better puncture protection with advantageous rolling resistance.A particularly preferred tensile strength density of at least 1.8 GPa / (g / cm^3) allows for further improved puncture protection with advantageous rolling resistance. A corresponding reinforcing element can comprise polyester polyarylate filaments and / or aramid and / or PBO or be formed therefrom.It is expedient if the reinforcing members have a tensile strength density of at least 0.04 to less than 0.3 GPa / (g / cm^3). Such a reinforcing element can comprise polyamide 6.6 or be formed therefrom.It can also be expedient, however, if the reinforcing members have a tensile strength density of at least 0.3 to less than 1.8 GPa / (g / cm^3). Such a reinforcing member may comprise steel or be formed therefrom.An advantageous embodiment is given in that the reinforcing members are formed wholly or partly from textile reinforcing material which is selected from the group consisting of polyester polyarylate, aramid and polyphenylenebenzobioxazole (PBO).The polyester polyarylate is generally present in the reinforcing member as polyester polyarylate filaments spun from molten liquid crystal polymers. Reinforcing members which are formed wholly or partly from the polyester polyarylate filaments are distinguished by a particularly high puncture strength and at the same time high flexibility.It is expedient if the reinforcing members comprising the polyester polyarylate filaments have a tensile strength density of at least 1.8 GPa / (g / cm^3), preferably of at least 2.0 GPa / (g / cm^3).The reinforcing members comprising polyester polyarylate filaments may be, for example, multifilament yarns of the type Vectran® of Kuraray Co., Ltd. Particularly high puncture strengths can thereby be achieved.It is expedient if the polyester polyarylate filaments have a diameter of less than 0.040 mm. When such thin filaments are used, good dynamic durability is obtained.By means of reinforcing elements which are formed wholly or partly from aramid, an advantageous protective effect is made possible.Aramids are in particular m-aramid, p-aramid and mixtures of m-aramid and p-aramid.The reinforcing members comprising aramid may have a tensile strength density of at least 1.8 GPa / (g / cm^3).The reinforcing members comprising aramid can be formed, for example, completely or partially from multifilament yarns of the type Kevlar® from DuPont de Nemours, Inc. Particularly high puncture strengths can thereby be achieved.By means of strengthening members which are formed wholly or partly from PBO, an advantageous protective effect is made possible.The strengthening members comprising PBO may have a tensile strength density of at least 3.3 GPa / (g / cm^3).An advantageous embodiment is given in that the reinforcing members are formed wholly or partly from a textile reinforcing material which is selected from the group consisting of polyesters, polyamides, polyurethanes, glass, carbon, celluloses, polycarbonates, polyketones and combinations thereof.Polyesters are advantageous here. Polyesters include, for example, polyethylene terephthalate (PET) and / or polyethylene naphthalate (PEN) and / or polybutylene terephthalate (PBT) and / or polyethylene furanoate (PEF). Polyamides are also advantageous. Examples of polyamides are nylon-4,6 (PA 4.6) and / or nylon-4,10 (PA 4.10) and / or nylon-6 (PA 6) and / or nylon-6,6 (PA 6.6) and / or nylon-6,12 (PA 6.12) and / or nylon-10,10 (PA 10.10) and / or nylon-12,12 (PA 12.12). Suitable celluloses are, for example, regenerated celluloses (in particular viscose or rayon) and / or cellulose esters. The preferred materials for the fabric reinforcing material are polyester and / or viscose and / or nylon and / or combinations thereof.An advantageous embodiment is given in that the reinforcing elements are formed from a textile reinforcing material and consist of one or more yarns and have a total fineness of 100 dtex to 800 dtex.Such thin textile reinforcing members offer an advantageous inner protection with at the same time low rolling resistance.An advantageous embodiment is given in that the reinforcing elements have one or more steel filaments or are formed therefrom.Such a hose with reinforcing elements comprising at least one steel filament has a high cut protection and puncture protection.The strengthening members comprising at least one steel filament may have a tensile strength density of at least 0.3 to less than 1.8 GPa / (g / cm^3).An advantageous embodiment is provided in that the reinforcing elements are arranged in a fabric, preferably in a cord fabric or a cross fabric.This facilitates the arrangement of the reinforcing members. The fabric can be formed wholly or partly from the reinforcing members. The reinforcing members can all be oriented in the same direction in the fabric. Reinforcing members can, however, also be arranged crossing one another. All the reinforcing members can be of identical design. The reinforcing members can, however, also differ from one another in particular with regard to their material. This allows the advantages of different reinforcing members to be combined with one another. Two or more different types of reinforcing members can be used, wherein the types can differ in their material.A cord fabric enables a particularly advantageous rolling resistance, a cross fabric is particularly advantageous with regard to the puncture protection.An advantageous embodiment is given in that the tube is suitable for a tire width having a value of from 18 mm to 122 mm, preferably from 23 mm to 65 mm or from 50 mm to 122 mm.A hose is usually chosen to suit the tyre width and size of the tyre, with which it is mounted together on a rim to the wheel and mounted as part of the wheel on the vehicle. A hose is usually compatible with several tire widths. The tire widths with which the specific hose is compatible are generally specified by the manufacturer. The tire width is the nominal cross-sectional width of the tire according to E.T.R.T.O in the version applicable at the filing date of this patent application.The hose is very suitable for vehicles with tires of the specified tire width for improving the tire durability with simultaneously advantageous rolling resistance, preferably for hospital chairs and / or bicycles with tires of the specified tire width.The tube may be provided and suitable for a tire width having a value of 23 mm to 42 mm. Such a hose is suitable for a racing bicycle.The tube may be provided and suitable for a tire width having a value of 30 mm to 65 mm. Such a hose is excellently suitable for a gravel board, city or trecking wheel.The tube may be provided and suitable for a tire width having a value of 32 mm to 55 mm. Such a hose is excellently suitable for an hospital chair.The tube may be provided and suitable for a tire width having a value of 50 mm to 122 mm. Such a hose is excellently suitable for a mountain bike.An advantageous embodiment is given in that it is a hose for a bicycle and / or a wheelchair, preferably for a bicycle.The term "bicycle" in the sense of the application encompasses bicycles of the most varied types, in particular bicycles with two or more wheels. The bicycle can be driven purely by muscle power and thus have no drive motor. However, the bicycle can also have a drive motor, preferably an electric motor, for driving the bicycle. The preferably electric drive motor can be designed as an auxiliary motor for step assistance, such as, for example, in the case of a pedelec or an S pedelec. This can be a load wheel, as used for example for delivery of packages.Improved durability with low rolling resistance is of great importance in bicycles. The hose according to the invention enables a corresponding improvement without changing the bicycle jacket per se in a complicated manner.When the hose is used in a bicycle with a motorized auxiliary drive, a high level of inner protection is advantageous since it increases the reliability of the vehicle. At the same time, the low rolling resistance allows a long range of the bicycle.An increase in the level of damage safety is also of greatest importance for a hospital elevator.An advantageous embodiment is provided in that it is a hose for a light vehicle with a motorized drive, preferably with a motorized auxiliary drive or a purely motorized drive.For light vehicles with a motor drive as well, such a hose with improved roadside safety and a long range is advantageous.The preferably electric motor-driven auxiliary drive can serve as an auxiliary motor for the step support.The hose can be suitable for a light vehicle with a purely motorized drive, for example for a corresponding small motorcycle and / or light motorcycle and / or light square.With respect to the vehicle wheel, the object is achieved by a vehicle wheel for a vehicle, preferably for a light vehicle, particularly preferably for a bicycle and / or an infant chair and / or a motorcycle, having a rim, a travel tube mounted on the rim according to at least one of the preceding claims and a pneumatic vehicle tire mounted on the rim.Such a vehicle wheel has a high level of durability with, at the same time, only slightly reduced rolling resistance properties. Preferably, it is a vehicle wheel for a light vehicle, particularly preferably for a bicycle and / or an hospital chair and / or a motorcycle.Table 1 shows examples of advantageous reinforcing members of the protective layer according to the invention. A hose according to the invention comprising such reinforcing elements in its protective layer of the hose body comprising TPE has an advantageous inner protection with simultaneously good recyclability. Reinforcing members are formed from the respective material specified. The reinforcing members 1 to 4 are each formed from a yarn of the specified textile reinforcing material and the specified fineness. The reinforcing member 5 is formed of a steel filament. Table 1 Table 11Vectran4402,32PBO5503,93Aramid Aramid4202,14Nylon nylon4700,15Steel Steel Steel0,4All embodiments of the hoses or vehicle wheels according to the invention presented in this description represent examples of the embodiment of the invention and are not to be seen as limiting. Accordingly, individual or a plurality of features of an embodiment alone or the combination of the features of different embodiments also give further embodiments of the invention which are the subject matter of the invention, unless this is explicitly explained differently in the description. Furthermore, combinations of preferred and particularly preferred embodiments can also be combined with one another.Further features, advantages and details of the invention are now explained in more detail with reference to the schematic drawings, which represent exemplary embodiments.The figure shows FIGS. 1 to 2 each show a cross section of a vehicle wheel having a travel hose according to the invention.FIGS. 1 to 2 each show a cross section of a vehicle wheel 8 having a rim 9, a travel tube 1 according to the invention mounted on the rim and a pneumatic vehicle tire 2 mounted on the rim 9. Accordingly, the travel hose 1 is a travel hose for a light vehicle, preferably for a bicycle.The travel hose 1 has a hose body 3 enclosing an air chamber 7 and a valve stem 11, by means of which air can be applied to the air chamber 7 of the vehicle hose.The hose body 3 is formed wholly or partly from a thermoplastic elastomer (TPE) and a protective layer 4 having reinforcing members arranged at least in its zenith. The TPE is arranged at least over the entire longitudinal extension of the hose body 3. The TPE is arranged over the entire circumference of a cross section of the hose body taken perpendicular to the longitudinal direction U of the hose body. The tube body 3 can consist of the protective layer 4 and the TPE.The TPE is a block copolymer, in particular one produced by block copolymerization, preferably a thermoplastic polyurethane (TPE-U). The TPE is designed as an expanded closed-pore TPE, preferably as an expanded closed-pore TPE-U. The hose body 3 can have a minimum material thickness Dminof at least 0.5 mm, preferably of at least 5 mm, particularly preferably of at least 8 mm, measured on the pressureless hose body perpendicular to an outwardly pointing surface 22 of the hose body. However, the TPE can also be formed homogeneously. The minimum material thickness can then be selected to be smaller.However, other TPEs such as mixtures of incompatible polymers, partially crystalline polymers added with plasticizers and / or modified rubber are also suitable. These TPEs can also be present in an expanded, closed-porous or homogeneous form, preferably in a homogeneous form.The reinforcing elements of the protective layer 4 are formed from one or more fibers. They can be in the form of individual filaments, filament bundles, yarns or cords. These may be reinforcing members according to the reinforcing members 1 to 5 indicated in Table 1.The strengthening members may have a tensile strength density of at least 0.04 GPa / (g / cm^3), preferably at least 0.3 GPa / (g / cm^3), more preferably at least 1.8 GPa / (g / cm^3).A tensile strength density of at least 1.8 GPa / (g / cm^3) allows for further improved puncture protection. A corresponding reinforcing element can comprise polyester polyarylate and / or aramid and / or PBO, preferably polyester polyarylate, or be formed therefrom. The polyester polyarylate is generally present in the reinforcing member as polyester polyarylate filaments spun from molten liquid crystal polymers. However, the strengthening members may also have a tensile strength density of at least 0.04 to less than 0.3 GPa / (g / cm^3). Such a reinforcing element can comprise polyamide 6.6 or be formed therefrom. The strengthening members may also have a tensile strength density of at least 0.3 to less than 1.8 GPa / (g / cm^3). Such a reinforcing member may comprise steel or be formed therefrom. The corresponding reinforcing element can comprise one or more steel filaments or be formed therefrom.The reinforcing members can be formed from a textile reinforcing material and consist of one or more yarns and have a total fineness of 100 dtex to 800 dtex.The reinforcing elements of the protective layer 4 can be arranged in a woven fabric, preferably in a cord fabric or a cross fabric.The travel hose 1 can be a closed travel hose before assembly or an open travel hose before assembly.The tire 8 shown can each have a tire width 10 (nominal cross-sectional width according to E.T.R.T.O.) with a value of 18 mm to 122 mm, preferably of 23 mm to 65 mm or of 50 mm to 122 mm. The hose 1 shown together with the tire 8 then has a suitability for the corresponding tire width 10.The hose 1 shown in FIG. 1 is characterized in that the protective layer 4 of the hose body 3 is arranged at least in the zenith 99 radially outside the TPE of the hose body 3.The hose 1 shown in FIG. 2 is characterized in that the protective layer 4 is arranged embedded in the TPE of the hose body 3.In FIGS. 1 to 2, it is preferably a respective wheel or a travel tube for a bicycle. It can be a race wheel, tracking wheel, mountain bike, gravel bike / CX or pedelec or S-pedelec. The travel tube 1 is matched in its dimension to the tire width 10 and to the tire diameter.However, the invention is not limited to a travel tube for a bicycle tire or a wheel for a bicycle. Hoses or wheels embodied according to the invention can furthermore be for vehicles of different types, preferably for a light vehicle, particularly preferably for a bicycle and / or a motorcycle and / or a wheelchair and / or a light motor vehicle. The light vehicle can have a drive motor as an auxiliary motor for step assistance or as a single drive. The light vehicle may also have no drive motor.List of reference characters1 Travel tube 2 Pneumatic vehicle tire 3 Tube body 4 Protective layer 5 Axial center 7 Air chamber 8 Vehicle wheel 9 Rim 10 Tire width 11 Valve stem 22 Outer surface of the tube body 99 Zenith Dmin Minimum value of the material thickness U Longitudinal extension direction rR Radial direction aR Axial directionReferences included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedDE 3021946 A1

[0006] DE 10 2005 018 742 A1

[0008] EP 1 682 362 B2

[0008] EP 168 / 2013 [0021, 0023]

Claims

Pneumatic vehicle tyre, preferably for a light vehicle, particularly preferably for a bicycle and / or an elevator and / or a motorcycle, with a hose body (3) comprising a thermoplastic elastomer (TPE), characterised in that the hose body (3) comprises a protective layer (4) with reinforcing elements at least in its zenith (99).The travel hose (1) according to claim 1, characterized in that the TPE is an expanded closed-pore TPE.The travel hose (1) according to at least one of the preceding claims, characterized in that the thermoplastic elastomer is present homogeneously.The travel hose (1) according to at least one of the preceding claims, characterized in that the thermoplastic elastomer is a block copolymer and / or a mixture of incompatible polymers and / or a partially crystalline polymer mixed with plasticizers and / or a modified rubber, preferably a block copolymer, particularly preferably thermoplastic polyurethane (TPE-U).Travelling hose (1) according to at least one of the preceding claims, characterized in that the protective layer (4) of the hose body (3) is arranged at least in the zenith (99) radially outside the TPE of the hose body and / or that the protective layer is arranged embedded in the TPE of the hose body.Travelling hose (1) according to at least one of the preceding claims, characterized in that the hose is a closed hose or an open hose.The travel hose (1) according to at least one of the preceding claims, characterized in that the reinforcing members have a tensile strength density of at least 0.04 GPa / (g / cm^3), preferably of at least 0.3 GPa / (g / cm^3), particularly preferably of at least 1.8 GPa / (g / cm^3).The travel hose (1) according to at least one of the preceding claims, characterized in that the reinforcing members are formed wholly or partly from textile reinforcing material selected from the group consisting of polyester polyarylate, aramid and polyphenylenebenzobioxazole (PBO).The travel hose (1) according to at least one of the preceding claims, characterized in that the reinforcing members are formed wholly or partly from a textile reinforcing material which is selected from the group consisting of polyesters, polyamides, polyurethanes, glass, carbon, celluloses, polycarbonates, polyketones and combinations thereof.The travel hose (1) according to at least one of the preceding claims, characterized in that the reinforcing members are formed from a textile reinforcing material and consist of one or more yarns and have a total fineness of 100 dtex to 800 dtex.Travelling hose (1) according to at least one of the preceding claims, characterized in that the reinforcing elements have one or more steel filaments or are formed therefrom.The travel hose (1) according to at least one of the preceding claims, characterized in that the reinforcing elements are arranged in a woven fabric, preferably in a cord fabric or a cross fabric.The travel hose (1) according to at least one of the preceding claims, characterized in that the hose is suitable for a tire width (10) having a value of 18 mm to 122 mm, preferably of 23 mm to 65 mm or of 50 mm to 122 mm.The travel hose (1) according to at least one of the preceding claims, characterized in that it is a hose for a bicycle and / or a wheelchair, preferably for a bicycle.Vehicle wheel (8) for a vehicle, preferably for a light vehicle, particularly preferably for a bicycle and / or an hospital chair and / or a motorcycle, having a rim (9), an airbag (1) according to at least one of the preceding claims mounted on the rim and a pneumatic vehicle tire (2) mounted on the rim.

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