Vehicle handlebars and method for producing same

Abstract

The invention relates to vehicle handlebars (1), in particular bicycle handlebars, comprising a handlebar rod (20) at least predominantly made of a preferably thermoplastic plastics material, with a top side (21) and a bottom side (22), wherein: the handlebar rod (20) comprises at least one middle portion (23) designed to be clampingly fastened in a stem clamp of the two-wheeled vehicle, at least two handlebar arm portions (24) connected to the middle portion, and at least two handle portions (25) integrally connected to the handlebar arm portions (24); the handlebar rod (20) is in the form of a single-piece, injection-molded plastics component; and at least one of the portions of the handlebar rod has, in at least one region extending over at least part of the periphery and part of the length of the handlebar rod (20), at least one material void (30) which forms a lateral surface of the vehicle handlebars (1) which is perforated in parts, and / or the handlebar rod (20) has, at least over part of the length and / or over part of the periphery, a fiber reinforcement comprising tension-resistant continuous fibers (50). The invention also relates to a method for producing the vehicle handlebars.

Description

[0001] Vehicle driver and method for its manufacture

[0002] The invention relates to a vehicle handlebar, in particular a bicycle handlebar, with a handlebar which consists at least predominantly of a preferably thermoplastic plastic.

[0003] A bicycle handlebar made of a fiber-reinforced plastic is known, for example, from EP 4 173 938 A1. This publication describes a bicycle handlebar with a handlebar core having a central section for connection to a steering head and laterally aligned handlebar arms formed at opposite ends of the central section. In order to achieve better damping behavior of the handlebar against vibrations and shocks, the teaching described in EP 4 173 938 A1 proposes that the central section and the handlebar arm sections be produced as a one-piece molded part from a fiber-reinforced plastic having a fiber volume fraction of at least 50%. The handlebar of the known bicycle handlebar comprises a central section and handlebar arm section, which are formed as a one-piece molded part.The handlebar arms are each provided at their outer ends with a receiving opening for receiving an extension rod, which defines a grip section. To accommodate the extension rods, the handlebar arm sections each form a partially enclosed hollow space in sections. The known bicycle handlebar, which is constructed entirely from multiple parts, has the disadvantage that the manufacture of the individual parts is relatively complex, particularly since the handlebar arms each have a partially or fully enclosed hollow space in sections with outer walls of varying thicknesses across the profile cross-section.

[0004] EP 2 829 465 B1 discloses a bicycle handlebar which comprises a central section for fastening the handlebar and two end sections which form the grips and which are each located on one side of the central section. The handlebar is made of plastic and comprises at least one stiffening insert which is located on the upper part of the handlebar. The handlebar according to EP 2 829 465 B1 is made from two half-shells which are intended to form a core of the handlebar, the core and the reinforcing inserts being inserted into an injection mould and overmoulded. This manufacturing process is also relatively complex.

[0005] Further prior art is known from the publications EP 4 173 937 A1, US 5 , 269 , 196 and US 503 , 773.

[0006] The invention is based on the object of providing a bicycle handlebar made of plastic which is particularly easy to manufacture, in particular which is particularly easy to manufacture using the injection moulding process.

[0007] The invention is further based on the object of providing such a vehicle handlebar which has both good suspension and damping properties and enables easy integration of functional components of the bicycle.

[0008] The object is achieved by providing a vehicle driver having the features of claim 1. Advantageous embodiments of the vehicle driver according to the invention are covered by the subclaims.

[0009] The object is further achieved by providing a method for producing a vehicle driver, in particular with the features of claim 1.

[0010] One aspect of the invention relates to a vehicle handlebar, in particular a bicycle handlebar, with a handlebar bracket which consists at least predominantly of a thermoplastic material, with an upper side which, when installed on the two-wheeler, faces a user, and with an underside which, when installed on the two-wheeler, faces away from a user, wherein the handlebar bracket comprises at least one central section which is designed for clamping in a stem clamp of the two-wheeler or which has a clamping receptacle for fastening to a fork shaft or a steering head of the two-wheeler. The handlebar bracket of the vehicle handlebar according to the invention comprises at least two handlebar arm sections which are connected in one piece to the central section, and at least two grip sections which are connected in one piece to the handlebar arm sections and which preferably have a cylindrical cross-section at least in some regions.The handlebar according to the invention is designed as a one-piece, injection-molded plastic component, wherein in particular the central section, the handlebar arm sections and the grip sections are connected to one another in one piece. At least one of the sections of the handlebar has at least one mass recess extending over at least a partial circumference and / or a partial length of the handlebar, which forms a partially perforated or jagged outer surface of the handlebar. The outer surface of the handlebar in the sense of the present invention is essentially to be understood as the envelope curve of the handlebar. The handlebar according to the invention does not have a full profile cross-section in these areas.

[0011] The mass recesses of at least the central section and the handlebar arm sections are preferably arranged outside the neutral fiber of the handlebar on the underside of the handlebar, at which the handlebar is predominantly subjected to compressive stress when bending moments are introduced by the user.

[0012] According to a further aspect, it is alternatively or additionally provided that the handlebar has a fiber reinforcement with tensile-resistant continuous fibers at least over a partial length and / or over a partial circumference.

[0013] A first variant of the vehicle guide according to the invention is filled with short fibers and provided with at least one, preferably with several mass recesses.

[0014] An alternative embodiment of the vehicle handlebar is also produced as an injection-molded, one-piece handlebar made of a thermoplastic reinforced with short fibers and, instead of mass recesses, comprises at least one fiber reinforcement extending continuously from end to end and made of long fibers or unidirectional, tensile-resistant continuous fibers aligned in the longitudinal direction of the handlebar. A third variant of the vehicle handlebar according to the invention comprises a combination of the features described above, namely both at least one mass recess and, in addition to a filling with short fibers, a continuously extending fiber reinforcement made of long fibers / unidirectional, tensile-resistant continuous fibers aligned in the longitudinal direction of the handlebar and preferably extending continuously from end to end of the handlebar.

[0015] In the following, the terms top and bottom as well as top or bottom refer to the handlebar in the installed position on the two-wheeler and to the perspective of a user sitting on the two-wheeler. The vehicle handlebar is preferably designed as a handlebar for a bicycle, although it is not excluded that the handlebar is also intended for mounting on a light motorized two-wheeler. The term "bicycle" also includes an electric bicycle.

[0016] The tensile continuous fibers are preferably arranged outside the neutral fiber of the handlebar on an upper side of the handlebar, so that bending moments introduced onto the handlebar from above by the user and resulting tensile forces on the upper side of the handlebar are absorbed by the fiber reinforcement.

[0017] The basic cross-section of the handlebar can be circular at least over some sections, but can have a different cross-sectional shape, for example oval, over other sections.

[0018] The handlebar according to the invention can, for example, have a cross-section that tapers from the central section to the handlebar ends, for example, inversely proportional to the bending moment curve when the handlebar ends are loaded by the user. The handlebar can, for example, be designed as a so-called tapered handlebar.

[0019] The handlebar of the vehicle handlebar according to the invention preferably consists entirely and exclusively of thermoplastic material.

[0020] A special feature of the vehicle handlebar according to the invention is that the handlebar, apart from the mass recesses, has a full profile cross-section, i.e. it has essentially no enclosed cavities extending in the longitudinal direction of the handlebar, which would require a complex design of the injection mold with slides and cores if manufactured using the injection molding process. The handlebar according to the invention is optimized with regard to simple manufacture using the injection molding process and simple final strength. In particular, it should be possible to produce the handlebar according to the invention in a simply designed two-part "open-closed" injection mold.

[0021] The profile cross-section of the handlebar can be round or oval, at least in some areas. A round profile cross-section, particularly in the area of ​​the handlebar clamp, has the advantage that the handlebar can be used with any number of standardized handlebar clamps.

[0022] The mass recesses serve on the one hand to

[0023] Weight reduction of the handlebar, on the other hand this prevents larger accumulations of material and the associated shrinkage of the plastic. Finally, the handlebar has greater flexibility in the area of ​​the mass cutouts due to the reduced cross-section of the handlebar in these areas. The mass cutouts are preferably provided in areas of the handlebar that are not visible or hidden during use. The mass cutouts form a perforated outer surface of the handlebar in the relevant areas and are designed as depressions in the cross-section of the handlebar, which extend radially in relation to the longitudinal axis of the handlebar.

[0024] Particularly preferably, the mass recesses can be designed as compartments or receiving spaces for functional components of the two-wheeler, for example for receiving electronic components or for receiving lighting.

[0025] The handlebar according to the invention can be designed as a so-called flat-bar handlebar, riser-bar handlebar or drop-bar handlebar.

[0026] In an expedient variant of the vehicle control arm according to the invention, the mass recess can be designed as an open chamber structure which can be demolded from an injection mold without the use of slides, wherein preferably at least some chambers have at least one subdivision designed as a supporting rib.

[0027] The vehicle handlebar according to the invention can in principle have integrally formed functional elements / fastening elements, which is why the invention conceptually distinguishes between the vehicle handlebar and the handlebar as such.

[0028] In particular, to ensure easy removal of the injection-molded vehicle control arm from an injection mold, the support ribs and / or boundary walls of the chambers of the mass recesses are preferably designed as beveled surfaces. For example, the support ribs can also be designed with a wall thickness that decreases radially from the inside to the outside.

[0029] In one embodiment of the vehicle steering column according to the invention, it can be provided that it is formed at least predominantly from a filled and / or fiber-reinforced thermoplastic material. The plastic can be filled with long fibers and / or short fibers. The fiber filling content can, for example, be from 20 to 60 percent by weight based on the total weight of the plastic mass used.

[0030] As already mentioned above, according to the further aspect of the invention, it can alternatively or additionally be provided that the vehicle handlebar according to the invention comprises a fiber reinforcement with tensile-strength continuous fibers. Preferably, the fiber reinforcement with continuous fibers extends over a partial length, particularly preferably over the entire length of the handlebar.

[0031] Furthermore, it can be particularly preferably provided that the continuous fibers themselves extend over a partial length, particularly preferably over the entire length of the handlebar and the continuous fibers and / or the

[0032] Fiber reinforcement must be oriented in a way that corresponds to the longitudinal extent of the handlebar or is aligned parallel to it. When the two-wheeler is used as intended, the handlebar is naturally subjected to uneven loads along its length. The greatest bending moments are introduced into the handlebar in the area of ​​the handlebar clamp, whereas the cross-section of the handlebar is subjected to less load at the grip ends. For this reason, it is sensible that the fiber reinforcement with continuous fibers does not extend over the entire length of the handlebar, but only over a partial length from approximately the middle of the handlebar to each end, with the exception of the grip areas. This has the advantage that the grip areas can be designed more easily with recesses and / or cutouts.

[0033] The use of unidirectional tapes (UD tapes) has proven particularly useful in this context.

[0034] In one embodiment of the vehicle handlebar according to the invention, the handlebar can have at least one preferably overmolded or injection-molded continuous fiber-reinforced band with unidirectionally aligned, high-tensile reinforcing fibers selected from a group of fibers comprising carbon fibers, glass fibers, aramid fibers, Kevlar fibers, and basalt fibers. The high-tensile bands can extend linearly over at least a partial length of the handlebar and / or over a partial circumference of the handlebar, preferably over the entire length of the handlebar from end to end.

[0035] Alternatively, the invention provides for the use of fiber prepregs made of laid or woven fiber-reinforced composite materials. Such prepregs, including those with a matrix of temperature-curable plastics (thermosets), can be integrated as fabric tubes into sections of the profile cross-section of the handlebar. These prepregs can be inserted into an injection mold before the handlebar is formed.

[0036] According to the invention, the use of prepregs with a matrix of thermoplastics is preferred, in particular because this improves and / or ensures the recyclability (reusability of the plastic processed after the life cycle of the vehicle driver) of the vehicle driver.

[0037] In a variant of the vehicle handlebar according to the invention, the handlebar bracket can be provided with an integrated cable guide for the two-wheeler's Bowden cables, at least in sections. The cable guide can be provided, for example, in the form of U-shaped or C-shaped channels open toward the outer surface of the handlebar bracket.

[0038] In one embodiment of the vehicle handlebar according to the invention, it is provided that the at least one central section has a one-piece molded stem with a clamping receptacle for a fork shaft or a steering head of the two-wheeler. The stem can be designed with at least one leadthrough and / or at least one guide and / or at least one receiving compartment for the integration of Bowden cables and / or for the integration of electronic components such as a speedometer, battery charge level indicator, etc.

[0039] Preferably, the at least one mass recess is

[0040] Receptacle for a functional component, in particular for an electronic component of the two-wheeler, for example an LED lighting.

[0041] It is practical and advantageous to provide at least one mass recess in the downward-facing areas or on the underside of the handlebar, so that it is not visible to the user when using the bicycle. Such an arrangement is also advantageous with regard to the flow of force through the handlebar.

[0042] At least one mass recess can be provided in the area of ​​a crank or bend in the handlebar, and can be directed forwards / downwards there, for example.

[0043] The handlebar advantageously has spring-elastic properties in partial sections, wherein the handlebar has first and second partial sections and the first partial sections have greater elasticity than the second partial sections and in particular the first partial sections are arranged in the region of offsets and / or bends of the handlebar. The first partial sections are preferably sections of the handlebar in which mass recesses are provided. The greater elasticity of the handlebar in these regions can already result from the fact that the mass recess forms a defined reduction in the cross-sectional area of ​​the profile cross-section.

[0044] In a variant of the vehicle handlebar according to the invention, it can be provided that the handlebar according to the invention is formed in the area of ​​the mass recesses from a thermoplastic material whose properties are different from the thermoplastic material that forms the remaining areas of the handlebar. The handlebar according to the invention can be manufactured, for example, by a multi-component injection molding process from various thermoplastic materials, in particular using thermoplastic elastomers.

[0045] The grip sections preferably have mass recesses which penetrate the cross-section of the grip sections in such a way that the outer surface of the grip sections is perforated on diametrically opposite sides. These mass recesses can penetrate the grip sections from one side to the other. The grip sections located at the handlebar ends are essentially exposed to lower bending stress, so that a mass reduction of the handlebar cross-section can be achieved in these areas in a particularly advantageous manner. The penetrated areas of the grip sections can, for example, be covered with commercially available standard grip elements, so that the handlebar is not impaired in terms of haptics.

[0046] In a variant of the vehicle handlebar according to the invention, at least some of the mass recesses / perforations in the outer surface of the handlebar can be provided with detachably insertable and preferably replaceable covers. These covers can be designed, for example, as elastomer caps.

[0047] Particularly preferably, the vehicle control device according to the invention comprises one or more functional components, which are preferably arranged in at least one receiving space formed by a mass recess. Functional components within the meaning of the invention are, for example, lights, speedometers, actuating elements / switches, a so-called head unit, GPS modules, GPS trackers, V2X modules (Vehicle-To-Everything communication modules), bells, etc. The invention further relates to a method for producing a vehicle control device of the type described above with one or more of the advantageous features described above from thermoplastic material, the method comprising the following method steps:

[0048] Providing an injection molding arrangement with at least one injection unit with means for plasticizing and providing the plasticized plastic under pressure into a tool with at least one cavity, wherein the tool is preferably designed in two parts and without a slide, and the at least one cavity defines the shape of the handlebar and has at least one sprue,

[0049] Injecting the plasticized plastic under pressure into the closed tool and

[0050] Opening the tool and removing the finished product.

[0051] The method according to the invention comprises the production of the handlebar in a single injection molding cycle, preferably without the use of preforms as inserts. A single injection molding cycle, as defined in the present application, refers to the injection process into the closed and clamped mold and the subsequent removal process of the finished article. Injection can be performed with one or more injection units via one or more sprues.

[0052] In a variant of the method according to the invention, at least one thermoplastic filled with high-tensile short fibers and / or long fibers can be used as the thermoplastic. The short fibers can be embedded in the plastic matrix in a non-oriented manner and have a length of 0.1 to 1 mm. The long fibers can also be embedded in the plastic matrix in a non-oriented manner and have a length of 1 to 50 mm. The high-tensile fibers can be selected from a group of high-tensile fibers comprising glass fibers and carbon fibers. The proportion of high-tensile fibers in the total weight of the plastic mass used can be from 20 to 60 percent by weight. A value range from to within the meaning of the present invention basically includes the limit values.

[0053] The thermoplastic material that can be used in the process according to the invention is selected from a group of thermoplastic materials comprising PA, PP, PPA, PS, PE, PE, ABS, PC, POM, PEK, PEEK, PA610, HPPA, PARA, PBT.

[0054] An advantageous variant of the method according to the invention can provide that different thermoplastics are injected into the tool in a multi-component injection molding process, wherein preferably at least one of the injected thermoplastics is a thermoplastic elastomer.

[0055] Alternatively or additionally, the method according to the invention can be provided with a further method step comprising inserting at least one continuous fiber-reinforced band with unidirectionally aligned, tensile-strength reinforcing fibers into at least one partial cavity of the tool.

[0056] The tape is preferably inserted into the tool in a fixed position. UD tapes, fabrics, continuous fibers, or prepregs can be sucked into the tool and / or fixed to the tool wall with adhesive tape or using holding mandrels.

[0057] The tape may comprise unidirectionally aligned continuous fibers selected from a group of fibers comprising carbon fibers, glass fibers, aramid fibers, Kevlar fibers and basalt fibers.

[0058] The invention is explained below with reference to and with reference to an embodiment shown in the accompanying drawings.

[0059] It shows :

[0060] Figure 1 is a perspective exploded view of the vehicle driver according to the invention from below and in front,

[0061] Figure 2 is a top view of the driver of Figure 1,

[0062] Figure 3 is a further perspective view of the vehicle driver according to the invention corresponding to Figure 1 and

[0063] Figure 4 is a perspective three-quarter view of another embodiment of the vehicle control device according to the invention.

[0064] The vehicle handlebar 1 shown in the figures comprises a handlebar 20 which, in the described embodiment, is slightly inclined upwards and backwards.

[0065] The terms "top," "rear," "top," and "bottom" refer to the vehicle handlebar 1 in its installed position on the two-wheeler and to the perspective of a user sitting on the two-wheeler. The two-wheeler is, for example, a bicycle.

[0066] The handlebar 20 is designed as a one-piece plastic injection-molded component made of a thermoplastic plastic, preferably of a polyolefin, for example of a polyamide. The handlebar 20 comprises a central section 23, two handlebar arm sections 24 which are adjoining the central section 23 and formed in one piece, and two grip sections 25 which are each adjoining the handlebar arm sections 24 and formed in one piece with the handlebar arm sections 24. The central section 23 of the handlebar 20 forms a clamping area 26 in which the handlebar 20 has a circular profile cross-section, for example with a diameter of 31.8 mm. The clamping area 26 is designed to be received by a corresponding clamping receptacle of a separate handlebar stem. The surface of the handlebar 20 in the clamping area 26 can, for example, have a surface roughness that increases the force of a clamp.The surface roughness of the material in this area of ​​the handlebar 20 can also be created by a corresponding filling of the thermoplastic material used.

[0067] The handlebar 20 was manufactured by means of an injection molding process in a single injection molding cycle, for example in a simple, slide-less (open-close) injection mold without mold cores and undercuts.

[0068] Figures 1 to 3 show a first variant of the vehicle guide 1 according to the invention, which was made of a thermoplastic filled with high-tensile short fibers. The short fibers can, for example, be selected from a group of fibers comprising glass fibers, Kevlar fibers, aramid fibers, basalt fibers, and carbon fibers.

[0069] As can be easily seen from the figures, the handlebar 20 of the vehicle handlebar 1 is provided with mass recesses 30 in the central section 23, in the handlebar arm sections 24 and in the grip sections 25, such that the outer surface of the handlebar 20 is perforated or jagged. The mass recesses 30 are provided, for example, in the clamping area 26 of the central section 23 on the underside 22 of the handlebar 20 and are covered there in the installed position in a clamping receptacle of the two-wheeler, for example by a stem clamp. Furthermore, in the variant of the handlebar 20 shown, the handlebar arm sections 24 are designed as transition areas that are slightly curved upwards and backwards between the central section 23 and the grip sections 25.

[0070] On the underside 22 of the handlebar 20, mass recesses 30 are provided, each forming a receiving space or a chamber 31 open in the direction of the underside 22 of the handlebar 20, which comprises boundary walls 33 and support ribs 32 extending diagonally between them. The boundary walls 33 and the support ribs 32 are inclined from the inside outwards, so that the chamber 31 forms a receiving space which widens conically towards the outside, thereby facilitating removal from an injection mold. The support ribs 32 can also have a thickness which decreases from the inside outwards. In the area of ​​the grip sections 25, which are preferably designed with a uniform round cross-section, the mass recesses 30 are designed such that they

[0071] Grip sections 25 penetrate completely, thus forming openings through the outer surface / envelope of the handlebar 20 on diametrically opposite sides relative to a longitudinal axis.

[0072] As can be seen from the exploded view in Figure 1, the mass recesses 30 in the handlebar arm sections 24 are provided with detachable covers 40, which can be designed, for example, as caps made of a thermoplastic elastomer.

[0073] In principle, the compartments formed by the mass recess 30 can serve to accommodate functional components of the two-wheeler, for example lighting, operating elements, etc.

[0074] A variant of the handlebar bracket 20 according to the invention is shown in Figure 4. The handlebar bracket 20 shown in Figure 4 is also made in one piece or in one piece by an injection molding process from a thermoplastic material. The thermoplastic material of the handlebar bracket 20 according to the exemplary embodiment shown in Figure 4 can also be filled with high-tensile short fibers. Suitable short fibers in the exemplary embodiment shown in Figure 4 can also be glass fibers, aramid fibers, carbon fibers, Kevlar fibers, basalt fibers, or the like.

[0075] In the second exemplary embodiment of the vehicle handlebar 1, further fiber reinforcement is provided in the form of unidirectional continuous fibers 50, which, for example, were inserted into the injection molding tool as a so-called "UD tape" before the injection process and were molded onto and / or partially overmolded. The continuous fibers 50, for example as carbon fibers or the like, extend continuously from one handlebar end to the other handlebar end and on the upper side 21 of the handlebar bracket 20 outside the neutral fiber, so that when the handlebar ends / grip sections 25 are loaded by the user while driving, they counteract a tensile load on the handlebar bracket 20 due to the introduction of a bending moment. According to the invention, the first variant of the handlebar bracket 20 according to Figures 1 to 3 can also be additionally reinforced with unidirectional long fibers / continuous fibers continuously aligned in the longitudinal direction of the handlebar bracket 20.

[0076] List of reference symbols Vehicle handlebar Handlebar top Bottom middle section Handlebar arm sections Grip sections Clamping area Mass recess Chambers Support ribs Boundary walls Bend Covers Unidirectional tensile continuous fibers

Claims

Claims 1. A vehicle handlebar (1), in particular a bicycle handlebar, comprising a handlebar bracket (20) which consists at least predominantly of a preferably thermoplastic material, having an upper side (21) which, when installed on the bicycle, faces a user, and having a lower side (22) which, when installed on the bicycle, faces away from a user, wherein the handlebar bracket (20) comprises: - at least one central section (23) which is designed for clamping in a stem clamp of the two-wheeler or which has a clamping receptacle for fastening to a fork shaft or to a steering head of the two-wheeler, - at least two handlebar arm sections (24) connected to the central section (23), and - at least two handle sections (25) connected to the handlebar arm sections (24), which preferably have a cylindrical cross-section at least in some areas, wherein - the handlebar (20) is designed as a one-piece, injection-molded plastic component and in particular the central section (23), the handlebar arm sections (24) and the handle sections (25) are connected to one another in one piece, and wherein - at least one of the sections, comprising the central section (23), the handlebar arm sections (24) and the grip sections (25), has at least one mass recess (30) in at least one region extending over at least a partial circumference and a partial length of the handlebar (20), which mass recess forms a partially perforated lateral surface of the vehicle handlebar (1) and / or the handlebar (20) has a fiber reinforcement with tensile-resistant continuous fibers (50) at least over a partial length and / or over a partial circumference.

2. Vehicle handlebar (1) according to claim 1, characterized in that the mass recess (30) is designed as an open chamber structure which can be demolded from an injection molding tool without the use of slides, wherein preferably at least some chambers (31) have at least one subdivision designed as a supporting rib (32).

3. Vehicle handlebar (1) according to claim 2, characterized in that the support ribs (32) and / or boundary walls (33) of the chambers (31) are designed as bevelled surfaces with respect to a radial extending in a profile cross-section.

4. Vehicle driver (1) according to one of claims 1 to 3, characterized in that it has at least is predominantly made of a filled and / or fiber-reinforced thermoplastic material, preferably with a fill level of 20 to 60 percent by weight based on the total weight of the handlebar (20), with a fiber length of 0.1 to 50 mm, preferably with a fiber length of 0.1 to 1 mm.

5. Vehicle handlebar (1) according to one of claims 1 to 4, characterized in that the fiber reinforcement with continuous fibers (50) extends over a partial length, preferably over the entire length of the handlebar bracket (20), that preferably the continuous fibers (50) each extend over the entire length of the handlebar bracket (50) and the continuous fibers (50) have an orientation that corresponds to the longitudinal extent of the handlebar bracket (20) or is aligned parallel to this.

6. Vehicle handlebar (1) according to one of claims 1 to 5, characterized in that the handlebar (20) has at least one preferably overmolded or injection-molded continuous fiber-reinforced band with unidirectionally aligned, tensile-resistant reinforcing fibers (50) which are selected from a group of fibers comprising carbon fibers, glass fibers, aramid fibers, Kevlar fibers and Basalt fibers.

7. Vehicle handlebar (1) according to one of claims 1 to 6, characterized in that the grip sections (25) each have a handlebar end closed at the front.

8. Vehicle handlebar (1) according to one of claims 1 to 7, characterized by at least one integrated cable guide.

9. Vehicle handlebar (1) according to one of claims 1 to 8, characterized in that the central section (23) has at least one clamping area (26) for fastening in a bicycle stem with a preferably round cross-section with a standardized diameter (31.8 mm, 25.4 mm).

10. Vehicle handlebar (1) according to one of claims 1 to 9, characterized in that the central section (23) has an integrally formed stem with a clamping receptacle for a fork shaft or a steering head of the two-wheeler.

11. Vehicle handlebar (1) according to one of claims 1 to 10, characterized in that at least one mass recess (30) is designed as a receptacle for a functional component, in particular for an electronic component of the two-wheeler.

12. Vehicle handlebar (1) according to one of claims 1 to 11, characterized in that at least one mass recess (30) is provided in the downwardly facing regions or on the underside (21) of the handlebar.

13. Vehicle handlebar (1) according to one of claims 1 to 12, characterized in that at least one mass recess (30) is provided in the region of a crank or bend (27) of the handlebar (20).

14. Vehicle handlebar (1) according to one of claims 1 to 13, characterized in that the handlebar bracket (20) has spring-elastic properties at least in partial sections, wherein the handlebar bracket (20) has first and second partial sections and the first partial sections have a greater elasticity than the second partial sections and in particular the first partial sections are arranged in the region of offsets and / or bends (27) of the handlebar bracket (20).

15. Vehicle handlebar (1) according to one of claims 1 to 14, characterized in that it has spring-elastic sections in the region of the mass recess (30).

16. Vehicle handlebar (1) according to one of claims 1 to 15, characterized in that the grip sections (25) have mass recesses (30) which pass through the cross section of the grip sections (25) so that the outer surface of the grip sections (25) is perforated on diametrically opposite sides.

17. Vehicle handlebar (1) according to one of claims 1 to 16, characterized in that at least some of the mass recesses (30) or openings in the outer surface of the handlebar (20) are provided with at least one detachably insertable and preferably replaceable cover (40).

18. Vehicle handlebar (1) according to one of claims 1 to 17, characterized in that the covers (40) are at least partially formed from a thermoplastic elastomer.

19. Vehicle handlebar (1) according to one of claims 1 to 18, comprising one or more functional components, which are preferably arranged in at least one receiving space formed by a mass recess (30).

20. A method for producing a vehicle steering column (1) made of thermoplastic material having the features of one of the preceding claims 1 to 19, wherein the method comprises the following method steps: - Providing an injection molding arrangement with at least one injection unit with means for plasticizing and providing a plasticized plastic under pressure into a tool with at least one cavity, wherein the tool is preferably designed in two parts and without a slide, and the at least one cavity defines the shape of the handlebar (20) and has at least one sprue, Injecting the plasticized plastic under pressure into the closed tool and - Opening the tool and removing the finished product.

21. A method according to claim 20, characterized in that at least one thermoplastic filled with tensile short fibers and / or long fibers is used as the thermoplastic.

22. Method according to one of claims 20 or 21, characterized in that the thermoplastic material is selected from a group of plastics comprising PA, PP, PPA, PS, PE, PE, ABS, PC, POM, PEK, PEEK, PA610, HPPA, PARA, PBT, PK.

23. Method according to one of claims 20 to 22, characterized in that various thermoplastics are injected into the tool in a multi-component injection molding process, wherein preferably at least one of the injected thermoplastics is a thermoplastic elastomer.

24. Method according to one of claims 20 to 23, characterized by the method step of inserting at least one continuous fiber-reinforced band with unidirectionally aligned, tensile-resistant continuous fibers into at least one partial cavity of the tool.

25. Method according to claim 24, characterized in that the strip is inserted into the tool in a fixed position.

26. Method according to one of claims 24 or 25, characterized in that the band comprises unidirectionally aligned continuous fibers selected from a group of fibers comprising carbon fibers, glass fibers, aramid fibers, Kevlar fibers and Basalt fibers.

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