Lighting system for a two-wheeled vehicle

Abstract

The invention relates to a lighting system (100) for a two-wheeled vehicle (1), in particular a bicycle or an electric bicycle, wherein the two-wheeled vehicle comprises: a frame with a head tube and a front fork rotatably mounted in the head tube, said front fork being connected via a stem to tubular handlebars, and wherein the lighting system (100) comprises: a first lighting device (110) for mounting on a first side-face end of the tubular handlebars, and preferably a second lighting device (120) for mounting on a second side-face end of the tubular handlebars.

Description

[0001] Lighting system for a two-wheeled vehicle

[0002] The invention relates to a lighting system for a two-wheeled vehicle, in particular a bicycle or an electric bicycle, wherein the two-wheeled vehicle comprises a frame with a head tube and a front wheel fork rotatably mounted in the head tube, which front wheel fork is connected to a tubular handlebar via a stem.

[0003] A lighting system is an important feature for a bicycle or electric bicycle (e-bike), especially in poor lighting conditions or at night. The lighting ensures that the bicycle and cyclist are clearly visible to other road users, thus contributing significantly to road safety.

[0004] For bicycles or e-bikes without pre-installed lights, it's possible to retrofit lighting. This typically involves a front light and / or a rear light. The front light is often mounted on the handlebars or the front part of the frame or fork, while the rear light is often mounted on the saddle or the rear part of the frame.

[0005] Modern lighting systems are usually powered by batteries or rechargeable batteries, which can be inserted in a replaceable battery compartment in the front or rear lighting or, in the case of rechargeable units, can also be permanently installed.

[0006] Against this background, the object of the present invention is to improve and / or further develop existing lighting solutions with regard to several aspects by providing a lighting system that can be retrofitted or permanently installed on a two-wheeled vehicle, in particular on a bicycle or e-bike, which is optimised in particular with regard to attachment and / or integration on the two-wheeled vehicle, with regard to illumination and visibility for other road users and thus road safety, with regard to the design and coordination of several lighting devices with one another, user-friendliness, in particular when switching on or off and / or when charging, and / or with regard to the appearance when installed.

[0007] To achieve this object, the invention discloses a lighting system for a two-wheeled vehicle, in particular a bicycle or electric bicycle, wherein the two-wheeled vehicle comprises a frame with a head tube, and a front wheel fork rotatably mounted in the head tube, which is connected to a tubular handlebar via a stem.

[0008] The lighting system comprises a first lighting device for mounting on a first front end of the tubular handlebar. The first lighting device has an inner section and an outer section, in particular connected thereto. The inner section can be inserted axially into the interior of the tubular handlebar at the first front end of the tubular handlebar. The outer section projects axially beyond the first front end of the tubular handlebar when the first lighting device is in the operating state, in particular when the inner section at the front end of the tubular handlebar is inserted axially into the interior of the tubular handlebar.

[0009] Preferably, the lighting system further comprises a second lighting device for mounting on a second front end of the tubular handlebar.

[0010] The second lighting device can preferably correspond to the first lighting device in some aspects. In principle, features that are generally described below for a lighting device are applicable to the first lighting device and / or the second lighting device, provided a second lighting device is included and unless otherwise specified.

[0011] If a second lighting device is included, this also has an inner section and an outer section, in particular one connected thereto. The inner section can be inserted axially into the interior of the tubular handlebar at the second end face of the tubular handlebar. The outer section projects axially beyond the second end face of the tubular handlebar when the second lighting device is in the operating state, in particular when the inner section is inserted axially into the interior of the tubular handlebar at the second end face of the tubular handlebar.

[0012] The inner section and the outer section of the first and / or second lighting device are in particular connected to one another. The connection between the inner section and the outer section can, for example, be fixed and / or load-bearing, e.g. via a rigid material connection. It is, for example, possible for the inner section to support the outer section and / or for the outer section to be fastened to the inner section. It is also, for example, possible for the connection between the inner section and the outer section to be formed via a one-piece material connection. However, it is also possible, for example, for the connection between the inner section and the outer section to be detachable, e.g. by means of a mechanical fastening system for detachable mechanical fastening.

[0013] The first lighting device and / or the second lighting device can be designed in particular for subsequent and / or detachable mounting on a standard bicycle handlebar.

[0014] The first and / or second lighting device can, for example, be configured for mounting on a tubular handlebar whose front ends project laterally outward, i.e., each projecting along a direction that runs transversely to the longitudinal direction defined by the two-wheeled vehicle and / or transversely to the plane spanned by the longitudinal direction and the perpendicular. The first and / or second lighting device can therefore be configured, in particular, for mounting on a mountain bike handlebar. The lighting system according to the invention is intended, in particular, for a two-wheeled vehicle comprising a crank and / or pedals, in particular for a two-wheeled vehicle that can be propelled exclusively by muscle power or additionally by muscle power, i.e., in particular, a bicycle that can optionally comprise an electric motor (so-called e-bike or pedelec).The frame, i.e., the supporting structure, of the two-wheeled vehicle therefore comprises, in particular, a bottom bracket shell for accommodating a bottom bracket for a crankset with pedals. The frame of the two-wheeled vehicle further comprises, in particular, a down tube, which is connected to the head tube on one side and to the bottom bracket shell on the other. Furthermore, the frame of the two-wheeled vehicle comprises, in particular, a seat tube, which is provided for accommodating a saddle.

[0015] In the assembled state, the inner section of the first lighting device and / or the second lighting device is inserted into the interior of the tubular handlebar. The inner section is, in particular, completely inserted into the interior of the handlebar, so that the entire inner section is radially surrounded by the tubular handlebar. In the assembled state, the outer section can preferably protrude axially beyond the front end of the tubular handlebar. In particular, when the lighting device is in the operating state, the outer section protrudes axially beyond the front end of the tubular handlebar.

[0016] The inner section and the outer section of the first and / or second illumination device define in particular the shape of the illumination device in radial terms.

[0017] Accordingly, the inner section of the first and / or second lighting device can have an inner section diameter that is, in particular, smaller than the diameter of a standard bicycle handlebar in the grip area. A standard bicycle handlebar is to be understood, in particular, as a commercially available bicycle handlebar.

[0018] The outer section of the first and / or second lighting device can have an outer section diameter that is larger than the inner section diameter. Accordingly, the outer section can radially project beyond the inner section and / or radially project beyond the diameter of a standard bicycle handlebar in the grip area.

[0019] The first and / or second lighting device can further comprise a radial collar which forms a transition between the inner section and the outer section and / or forms a transition between the inner section diameter and the outer section diameter. Such a radial collar can, for example, be designed to be stepped in an axial section. The radial collar can be designed to bear against the front end of the tubular handlebar when the inner section is inserted into the interior of the tubular handlebar. In radial terms, the outer section diameter can thus be larger than the inner section diameter. However, it is not fundamentally impossible for the outer section diameter and the inner section diameter to be the same or for the outer section diameter to be smaller than the inner section diameter.However, as described, the outer section projects axially beyond the front end of the tubular handlebar, particularly when the lighting device is in the mounted state and / or in the operating state.

[0020] Preferably, the first and / or second lighting device comprises means for mounting on the front end of the tubular handlebar.

[0021] The mounting means may comprise one or more screw holes in the radial collar of the lighting device. Such screw holes may, for example, extend through the radial collar and into the outer portion, so that screws can be screwed into such screw holes to mount the lighting device.

[0022] The mounting means may further comprise a fastening body, which can be fastened, on the one hand, to the tubular handlebar and / or to a handlebar grip, and, on the other hand, can be fastened directly or indirectly to the lighting device. Such a fastening body can, in particular, be designed as a fastening ring.

[0023] For example, the fastening body can be designed to be clamped to the tubular handlebar, and the lighting device can be designed to be screwed directly to the fastening body, such that the lighting device can be fastened to the fastening body with one or more screws, wherein the lighting device preferably rests against the fastening body in the fastened state. However, indirect fastening is also possible. For example, the lighting device can first be fastened to another element, and the other element can in turn be fastened to the fastening body.

[0024] A fastening body which is designed as a fastening ring or comprises a fastening ring can in particular have a device for varying the circumference in order to clamp the fastening ring, preferably from the outside, to the tubular handlebar.

[0025] The fastening body can have one or more screw holes extending axially through the fastening body, such that the fastening body can be screwed to the lighting device. For example, it can be provided that the fastening body can be screwed axially through these screw holes to the screw holes in the radial collar of the lighting device. The fastening body or fastening ring can preferably be designed as a standard clamping ring that is compatible with a standard bicycle handlebar grip system. A standard bicycle handlebar grip system is understood to mean, in particular, a commercially available bicycle handlebar grip with associated commercially available clamping rings.

[0026] It is also possible for the mounting means to comprise a device for internally fastening the lighting device to the handlebar. For example, it is possible for the inner section to be fastened from the inside in the tubular handlebar. For example, a fastening body can be included which, on the one hand, can be fastened from the inside in the tubular handlebar and, on the other hand, can be fastened or is fastened to the inner section of the lighting device.

[0027] With regard to the dimensions of the first and / or second lighting device, the following values ​​in particular can be provided.

[0028] The inner section diameter of the first and / or second illumination device may be between 10 and 20 millimeters, preferably between 15 and 20 millimeters.

[0029] The outer section diameter of the first and / or second illumination device can be between 10 and 60 millimeters, preferably between 22 and 60 millimeters, more preferably between 22 and 35 millimeters.

[0030] The inner section of the first and / or second illumination device may have an axial inner section length which is between 10 and 150 millimeters, preferably between 40 and 100 millimeters.

[0031] The outer section of the first and / or second illumination device may have an axial outer section length which is between 5 and 75 millimeters, preferably between 10 and 40 millimeters.

[0032] The technical equipment of the lighting system or the first and / or second lighting device will now be discussed in more detail.

[0033] In particular, it is provided that the first and / or second lighting device comprises lighting means. A lighting device may well comprise several lights, which can be designed, in particular, for different directions and thus for different road users.

[0034] Specifically, the illumination means of the first and / or second lighting device can comprise a front light configured to generate a front light beam, in particular one that is directed forward of the two-wheeled vehicle when mounted. Such a front light beam can preferably have an aperture angle between 30 and 160 degrees. The illumination means can further comprise a rear light configured to generate a rear light beam, in particular one that is directed rearward of the two-wheeled vehicle when mounted. Such a rear light beam can preferably have an aperture angle between 15 and 80 degrees.

[0035] The front light is designed, in particular, for continuous forward illumination, particularly to provide the rider of the two-wheeled vehicle with better visibility in the dark and / or to increase the visibility of the two-wheeled vehicle to other road users. The rear light is designed, in particular, for continuous, permanently flashing, or pulsating rear illumination, particularly to increase the visibility of the two-wheeled vehicle to other road users. However, it is not excluded that the front light and / or rear light may also have other functions, e.g., a temporary function as a turn signal.

[0036] The front light of the lighting means of the first and / or second lighting device preferably has a radiation direction that runs transversely to the axial direction along which the inner section can be inserted into the interior of the tubular handlebar. The rear light of the lighting means of the first and / or second lighting device preferably also has a radiation direction that runs transversely to the axial direction along which the inner section can be inserted into the interior of the tubular handlebar. The front light and / or the rear light in particular has a radiation direction that extends laterally from the outer housing, i.e. in particular transversely to the normal of the outer housing front side. This makes the lighting device particularly suitable for a handlebar whose front ends protrude laterally outwards, i.e. in particular a mountain bike handlebar.

[0037] In the context of the present explanations, the direction of radiation is to be understood in particular as the central direction of radiation of the light cone.

[0038] The front light of the first lighting device is in particular designed to generate a first front light beam which, together with a second front light beam of the preferably included second lighting device, forms an overall front light beam which is particularly suitable for continuous illumination to the front, in particular to provide the driver of the two-wheeled vehicle with better visibility in the dark.

[0039] In other words, the first front light beam of the first lighting device is preferably matched to a second front light beam of the preferably included second lighting device. The second front light beam of the preferably included second lighting device is also preferably matched to the first front light beam of the first lighting device.

[0040] The first front light beam of the first lighting device is preferably designed such that a first luminous intensity maximum exists along at least one first main radiation direction, which is surrounded by a lower luminous intensity, wherein this refers to a sole consideration of the first front light beam. The first front light beam is preferably further designed such that the first luminous intensity maximum is offset transversely to the plane of the two-wheeled vehicle. In other words, the first luminous intensity maximum lies, for example, to the right of the plane of the two-wheeled vehicle, i.e. the plane spanned by the longitudinal direction of the two-wheeled vehicle and the plumb line when the first lighting device is mounted and / or in the operating state.

[0041] The second front light beam of the preferably included second lighting device is preferably also designed such that along at least one second main radiation direction there is a second luminous intensity maximum, which is surrounded by a lower luminous intensity, wherein here again only the second front light beam is considered. The second front light beam is preferably further designed such that the second luminous intensity maximum is offset transversely to the plane of the two-wheeled vehicle. In other words, the second luminous intensity maximum lies, for example, to the left of the plane of the two-wheeled vehicle, i.e. the plane spanned by the longitudinal direction of the two-wheeled vehicle and the plumb line when the second lighting device is mounted and / or in the operating state.

[0042] The overall front light beam is preferably designed such that at a central position, a total luminous intensity is present that has a value of at least 10% of the first luminous intensity maximum and / or at least 10% of the second luminous intensity maximum. Preferably, the aforementioned value can be higher than 10%, in particular 25%, in particular 50%, in particular 75%, in particular 100%, in particular 125%, in particular 150%.

[0043] The central position is understood to be a position in the overall front light beam that lies in the plane of the two-wheeled vehicle, i.e. the plane spanned by the longitudinal direction of the two-wheeled vehicle and the plumb line. Furthermore, the central position preferably lies in the plane of the ground. In other words, the central position preferably lies on a straight line resulting from the intersection of the plane of the two-wheeled vehicle and the plane of the ground. Furthermore, the central position preferably lies in a plane spanned by the first main radiation direction of the first luminous intensity maximum and the second main radiation direction of the second luminous intensity maximum. In other words, the central position preferably lies on a straight line resulting from the intersection of the latter plane with the plane of the two-wheeled vehicle or with the plane of the ground, or at the point resulting from the intersection of the three aforementioned planes.

[0044] At the central position, the luminous intensities of the two front light beams, e.g. the lower luminous intensity surrounding the first luminous intensity maximum and the lower luminous intensity surrounding the second luminous intensity maximum, overlap to form a total luminous intensity.

[0045] As described, the front light of the first and / or second lighting device preferably has a radiation direction that runs transversely to the axial insertion direction into the tubular handlebar. The radiation direction of the first and / or second lighting device is further preferably directed inwards. In particular, the radiation direction of the first and / or second lighting device has an angle to the outward-pointing normal of the axial direction, i.e. e.g. the normal of the outer housing front side, which angle is greater than 90 degrees, preferably greater than 93 degrees, preferably greater than 96 degrees, preferably greater than 100 degrees. This also takes into account in particular the fact that the tubular handlebar runs obliquely with respect to the transverse direction of the two-wheeled vehicle.

[0046] Furthermore, the radiation direction of the first and / or second illumination device is preferably directed downward or can be directed downward. This is particularly the case such that the radiation direction of the first and / or second illumination device forms an angle to the upward direction vector that is greater than 90 degrees, preferably greater than 100 degrees, preferably greater than 110 degrees.

[0047] The lighting means may further comprise a ground light configured to generate a ground light beam, in particular one that is directed downwards from the two-wheeled vehicle when mounted. Such a ground light beam may preferably have a longitudinal aperture angle of between 20 and 130 degrees and / or a transverse aperture angle of less than 30 degrees.

[0048] The longitudinal opening angle is understood here in particular to mean an opening angle in the longitudinal direction, i.e., in a direction which, when the respective lighting device is mounted on the two-wheeled vehicle, runs from rear to front with respect to the two-wheeled vehicle. Accordingly, the transverse opening angle is understood in particular to mean an opening angle in the transverse direction, i.e., in a direction which, when the respective lighting device is mounted, runs from left to right with respect to the two-wheeled vehicle, in particular, perpendicular to the longitudinal direction.

[0049] The illumination means of the first and / or second illumination device are preferably arranged on a part of the illumination device which, in the assembled state and / or operating state, projects axially beyond the front end of the tubular handlebar, i.e. in particular on the outer section.

[0050] The first and / or second lighting device has in particular various housing parts as described in more detail below.

[0051] Preferably, the first and / or second lighting device comprises an inner housing with an inner housing sleeve and, optionally, an inner housing flange connected thereto. The inner housing sleeve forms, in particular, the inner section of the lighting device.

[0052] The inner housing, which can be at least partially inserted into the interior of the tubular handlebar, is preferably connected to an outer housing which projects outwards in the assembled state.

[0053] The first and / or second lighting device comprises, in particular, an outer housing with an outer housing shell having one or more luminaire recesses and an outer housing end face. The outer housing, and optionally the inner housing flange, preferably form the outer section of the lighting device.

[0054] The above-described lighting means can, in particular, comprise one or more light sources, each with an optionally associated light shaper, wherein these are preferably mounted on a circuit board, which is preferably arranged on the inner housing flange. The one or more light sources, each with an optionally associated light shaper, in particular form the one or more luminaires of the lighting means.

[0055] It can also be provided that the first and / or second lighting device comprises a transparent, in particular one-piece, intermediate housing which is arranged between the inner housing and the outer housing.

[0056] Such an intermediate housing can, in particular, form one or more luminaire covers, which cover the one or more light sources, each with an optionally associated light shaper, and preferably engage with the one or more luminaire recesses in the outer housing shell. Such a cover for the light sources and any associated light shapers is preferably designed to be watertight, so that the light sources and any associated light shapers are protected from moisture.

[0057] The first and / or second lighting device can in particular comprise a sealing ring which is arranged between the inner housing and the outer housing and / or the intermediate housing.

[0058] Furthermore, a seal can be provided between the intermediate housing and the outer housing to prevent water ingress. For this purpose, a sealant can be inserted into a remaining gap between the intermediate housing and the outer housing, which can, for example, completely fill the gap.

[0059] The inner housing and the outer housing of the first and / or second lighting device are preferably connected to one another. The connection between the inner housing and the outer housing can be designed, for example, to be fixed and / or load-bearing, e.g., via a rigid material connection. It is possible, for example, for the inner housing to support the outer housing and / or for the outer housing to be fastened to the inner housing. It is also possible, for example, for the connection between the inner housing and the outer housing to be detachable, e.g., by means of a mechanical fastening system for detachable mechanical fastening.

[0060] With regard to the materials, it can be provided, for example, that the inner housing of the first and / or second lighting device comprises or consists of plastic. However, the inner housing can also comprise or consist of metal, for example. The transparent intermediate housing can comprise or consist of plastic, for example. The outer housing can comprise or consist of metal, for example. However, the outer housing can also comprise or consist of plastic, for example. It is preferably provided that the outer housing comprises or consists of a material which is harder than or the material of the intermediate housing. One advantage of this is that the outer housing can mechanically protect the intermediate housing, in particular when the outer housing protrudes axially at a handlebar end and can therefore sometimes be exposed to mechanical loads, e.g. impacts.

[0061] In the following, we will look in more detail at the optionally several different luminaires of a lighting system in connection with the respective assigned light sources and / or light shapers.

[0062] A luminaire, e.g., the front light and / or the rear light, can each comprise, in particular, a light source and an associated light shaper. The light shaper can influence the beam direction and / or the opening angle, so that the beam angle and / or the opening angle of the luminaire differs from the beam angle and / or the opening angle of the light source.

[0063] For example, the first light source of the front light can have an axial radiation direction and can be deflected by the associated first light shaper in a direction transverse to the axial direction. For example, the second light source of the rear light can also have an axial radiation direction and can be deflected by the associated second light shaper in a direction transverse to the axial direction. This makes it possible in particular for the lighting device to be particularly suitable for handlebars whose front ends protrude outwards at the sides, i.e. in particular a mountain bike handlebar. At the same time, a flat design is made possible in that the first and / or second light source can be mounted flat, for example, in a plane which is defined by a normal vector along the axial direction.

[0064] In particular, a first light source forming the front light can be included with an associated first light shaper, wherein the first light source is designed as a light-emitting diode which has an axial emission direction, and the light shaper is designed as a reflector which deflects the axial emission direction into a radial emission direction.

[0065] In other words, the first light source can be mounted on the circuit board in such a way that it has a radiation direction perpendicular to the surface of the circuit board and an associated reflector can cause a deflection into a radiation direction parallel to the surface of the circuit board.

[0066] Furthermore, a second light source forming the rear light with an associated second light former can be included, wherein the second light source is designed as a light-emitting diode which has an axial radiation direction, and the light former is designed as a reflector which deflects the axial radiation direction into a radial radiation direction.

[0067] Again, the second light source can be mounted on the circuit board in such a way that it has a radiation direction perpendicular to the surface of the circuit board and an associated reflector can cause a deflection into a radiation direction parallel to the surface of the circuit board.

[0068] Furthermore, a third light source forming the floor lamp can be included with an associated third light former, wherein the third light source is designed as a laser diode which has a radially bundled radiation, and the light former is designed as a line former which fans out the radially bundled radiation in the longitudinal direction.

[0069] In other words, the laser diode can be mounted on the circuit board in such a way that a substantially point-like emission occurs along a direction parallel to the surface of the circuit board. A line former can then fan out the substantially point-like emission in one dimension, resulting in a substantially linear emission. This allows, for example, laser light lines to be projected onto the floor.

[0070] The aforementioned line former is preferably rotated around the radial direction at a correction angle such that the longitudinal direction of the fanning-out runs obliquely with respect to a plane extending orthogonally to the axial direction at the correction angle. The correction angle is preferably between 3 and 15 degrees.

[0071] A correction angle can therefore take into account, in particular, the fact that the tubular handlebar is inclined relative to the transverse direction of the two-wheeled vehicle.

[0072] As described, the front light and / or the rear light can each comprise a light source and an associated light shaper. The light source and the light shaper are preferably designed as separate components. This has the advantage that a standard LED, for example, can be used as the light source, and a light shaper specially adapted for the lighting device can be used as the light shaper.

[0073] A light shaper can, for example, comprise a lens or be designed as a lens. A light shaper can, for example, also comprise a reflector or be designed as a reflector. A light shaper designed as a reflector comprises, in particular, a base body, e.g., made of plastic, which has a reflective surface, preferably a reflective coating, which can, for example, be vapor-deposited.

[0074] The light shaper of the front light of the first and / or second lighting device is preferably designed to redirect a main emission direction of the first light source, for which a first luminous intensity maximum exists, into a main emission direction of the first front light beam according to the above explanations. This is because the main emission direction of a light source belonging to the front light (first light source) preferably differs from the desired main emission direction of the front light (including light shaper), in particular by an angle of at least 3 degrees, in particular by an angle of at least 90 degrees, in particular by an angle of at least 93 degrees. The main emission direction of the first light source can, for example, run along the axial insertion direction.

[0075] The front light of a lighting device is designed, in particular, as a headlight, with the light from the light source being directed and focused by the light shaper. The light shaper of the rear light of the first and / or second lighting device can also be designed to redirect a main beam direction of the light source belonging to the rear light (second light source). The light shaper of the rear light can comprise a light guide or be designed as a light guide. The light source and the light shaper of the rear light can also be designed as an integrated component.

[0076] In some embodiments, the lighting system, in particular the first and / or the second lighting device, has a charging unit.

[0077] A charging unit may preferably comprise a charging connection, in particular for connecting a charging device, wherein the charging connection is preferably contacted on the or a printed circuit board, which is preferably arranged on the inner housing flange of the inner housing.

[0078] Optionally, it can be provided that one or the outer housing has a charging connection recess for the charging connection, wherein the charging connection recess is preferably located in the outer housing front side.

[0079] Optionally, it can further be provided that one or the intermediate housing, which is arranged between the inner housing and the outer housing, has a charging connection opening for the charging connection, wherein the charging connection opening preferably runs axially through the intermediate housing.

[0080] The first and / or second lighting device may also optionally comprise a cover cap for covering the charging port recess in the outer housing.

[0081] Such a cover cap may preferably comprise a flexible retaining web which is held on the outer housing and / or on the intermediate housing.

[0082] According to a further development, the charging unit can optionally comprise a coil for inductive charging and / or magnets for attaching a charging device. For example, a charging device can be magnetically attached axially to the outer housing front side to establish an inductive coupling with a coil for inductive charging.

[0083] A charging unit further comprises, in particular, a charging controller or is connected to a charging controller of the lighting system or to a charging controller arranged in the lighting system. Such a charging controller comprises, in particular, circuits for controlling the charging of rechargeable energy storage devices, e.g., lithium-ion batteries or lithium-polymer batteries. A charging controller can, for example, be designed as a microchip arranged in the lighting system or be integrated into such a microchip. A charging controller can, in particular, comprise a charging management system which is configured to set a charging current and / or a charging voltage for charging the energy storage device(s), to select it from various options, and / or to adapt it during charging.A charging controller can, in particular, comprise a charging termination device configured to determine whether the energy storage device(s) are sufficiently charged and / or to terminate a charging process. A charging controller can, for example, also be configured to limit the charging current based on a temperature measurement. A charging controller can, for example, be implemented as a linear charge management controller in an integrated circuit.

[0084] A charging unit can further be configured in particular to control a charging indicator which indicates during charging that a charging process is taking place and / or after charging has ended that the charging process is complete.

[0085] In some embodiments, the lighting system, in particular the first and / or second lighting device, comprises a switching unit for switching the lighting means, in particular the lights of the lighting means. Such a switching unit can be configured, in particular, to switch the lighting means, in particular the lights of the lighting means, on or off, or to switch between different operating modes.

[0086] A switching unit preferably comprises a switch, in particular designed as a pushbutton, wherein the switch is preferably contacted on the circuit board or a circuit board, which is preferably arranged on the inner housing flange of the inner housing. In the context of this application, the term "switch" is to be understood as a generic term for components that can open or close an electrical circuit through user interaction.

[0087] A switching unit can preferably comprise an actuating element that is connected to the switch and can be actuated by a user to switch the switch. Such an actuating element is, in particular, mechanically connected to the switch or can be brought into contact to switch the switch. Furthermore, such an actuating element can sometimes be configured with multiple elements, with one or more actuating element elements each being mechanically connected to one another or capable of being brought into contact to transmit an actuating pulse to the switch.

[0088] Optionally, it can be provided that one or the outer housing has an actuating element recess for the actuating element and optionally one or the intermediate housing, which is arranged between the inner housing and the outer housing, has an actuating element opening for the actuating element.

[0089] A switching unit can be designed, in particular, as a shell-side switching unit, such that the actuating element is arranged on the outer housing shell, the actuating element recess is preferably located in the outer housing shell, and the actuating element opening preferably extends radially through the intermediate housing. In this case, the actuating element can be actuated, in particular, by exerting pressure in the radial direction.

[0090] A switching unit can also be designed as a front-mounted switching unit, such that the actuating element is arranged on the outer housing front side, the actuating element recess is preferably located in the outer housing front side, and the actuating element opening preferably extends axially through the intermediate housing. In this case, the actuating element can be actuated in particular by exerting pressure in the axial direction.

[0091] A front-side switching unit can, for example, comprise an actuating element with an elastically deformable disc arranged on the front side and optionally a further actuating element member which is arranged between the elastically deformable disc and the switch in order to transmit pressure pulses.

[0092] According to a further development, the first and / or second lighting device can comprise a switching unit with a switch, in particular designed as a push-button, which, when the lighting device is mounted, is directed rearward relative to the two-wheeled vehicle and can be actuated in the radial direction, in particular by a pressure pulse. Such an internal switch can be provided alternatively or additionally.

[0093] In principle, it is also possible for a switch of the switching unit, in particular an internal switch, to be arranged in a fastening body, a handlebar grip and / or a handlebar grip fastening ring.

[0094] An embodiment of the invention is described below, which can be characterized in particular by independent first and second lighting devices.

[0095] According to one embodiment of the invention, the first lighting device may comprise a first energy storage device which is configured to operate the lighting means of the first lighting device.

[0096] Furthermore, the first lighting device can comprise a switching unit, in particular according to the above-mentioned embodiments, which is configured to switch the lighting means of the first lighting device.

[0097] Preferably, it can further be provided that the first energy store is designed as a rechargeable first energy store, and that the first lighting device has a charging unit, in particular according to the above-mentioned embodiments, in order to charge the rechargeable first energy store and that the switching unit is designed in particular as a casing-side switching unit.

[0098] In the case that a second lighting device is included, the second lighting device can comprise a second energy storage device which is configured to operate the lighting means of the second lighting device.

[0099] Furthermore, the second lighting device can comprise a switching unit, in particular according to the above-mentioned embodiments, which is configured to switch the lighting means of the second lighting device. Preferably, it can also be provided that the second energy storage device is designed as a rechargeable second energy storage device, and that the second lighting device has a charging unit, in particular according to the above-mentioned embodiments, for charging the rechargeable second energy storage device, and that the switching unit is designed in particular as a casing-side switching unit.

[0100] According to an embodiment with both a first and a second illumination device, the second illumination device can preferably be designed identically or mirror-symmetrically to the first illumination device.

[0101] The invention further discloses a lighting system for a two-wheeled vehicle, in particular according to the above embodiments, comprising a first lighting device and a second lighting device, wherein the two lighting devices are designed for mounting on opposite sides of one or the tubular handlebar, and comprising means for connecting the first lighting device to the second lighting device, wherein the means for connection are designed in particular to be signal-carrying and / or current-carrying.

[0102] The first lighting device and the second lighting device can be designed in particular for subsequent and / or detachable mounting on a standard bicycle handlebar.

[0103] Optionally, it can be provided that the first and / or second lighting device comprises a contact terminal for detachably contacting the means for connection, wherein the contact terminal is preferably arranged on the or an inner section and / or on the or an inner housing of the first and / or second lighting device, particularly preferably on an axial end which is opposite the or an outer housing.

[0104] An embodiment of the invention is described below, which can be characterized in particular by functionally complementary first and second lighting devices.

[0105] According to one embodiment of the invention, the lighting system comprises an energy storage system which is configured to operate the lighting means of the first lighting device and to operate the lighting means of the second lighting device.

[0106] The energy storage system comprises one or more of the following energy storage devices: a first energy storage device arranged in the first lighting device, a second energy storage device arranged in the second lighting device, and / or an external energy storage device arranged outside the first and second lighting devices, e.g., arranged in an additional module that can be attached, e.g., to or in the frame of the two-wheeled vehicle. It is possible for at least one of the energy storage devices or the energy storage devices of the energy storage system to be configured jointly to operate the lighting means of the first lighting device and the second lighting device.However, it is also possible for certain energy storage devices of the energy storage system to be configured for the operation of certain lighting devices, for example a first energy storage device arranged in the first lighting device for the operation of the lighting devices of the first lighting device and a second energy storage device arranged in the second lighting device for the operation of the lighting devices of the second lighting device.

[0107] Furthermore, the lighting system can preferably comprise a switching unit, in particular according to the above-mentioned embodiments, which is configured to switch the lighting means of the first lighting device and to switch the lighting means of the second lighting device by transmitting switching signals via the means for connection.

[0108] Preferably, it can be provided that the energy storage device(s) of the energy storage system are designed as rechargeable energy storage devices, and that the first lighting device has a charging unit, in particular according to the above-mentioned embodiments, in order to charge the rechargeable energy storage devices by transmitting charging currents via the means for connection, and that the switching unit is designed in particular as a front-side switching unit on the second lighting device.

[0109] Some possibilities are described below as to how the means for connecting the first lighting device to the second lighting device can be designed.

[0110] The means for connection may comprise a direct connection which runs from the first lighting device to the second lighting device.

[0111] However, the means for connection can also comprise an indirect connection which runs from the first lighting device to an additional module which is, for example, attached to or in the frame.

[0112] The means for connection may also comprise an indirect connection which runs from the second lighting device to the or an additional module which is attached, for example, to or in the frame.

[0113] The means for connection may also comprise an indirect connection which runs from a direct connection to an additional module.

[0114] In the event that the means for connection comprise both a direct connection from the first lighting device to the second lighting device and an indirect connection from at least one lighting device or the direct connection to an additional module, the connection of the lighting devices can be made directly and / or indirectly, and further functionality can optionally be provided via the additional module.

[0115] In the event that the means for connection comprise both an indirect connection from the first lighting device to an additional module and an indirect connection from the second lighting device to the additional module, the connection of the lighting devices can be made via the additional module, which can also provide further functionality if necessary.

[0116] An add-on module can optionally provide additional functionality. For example, an add-on module can accommodate an external energy storage device. However, it is also possible for the add-on module to include an external charging unit and / or an external switching unit. Furthermore, an add-on module can also be configured as an energy storage device and / or a control unit of an electric bicycle (e-bike) or include such an energy storage device and / or such a control unit.

[0117] A direct and / or indirect connection can be designed as a connecting cable which is suitable for transmitting charging current and / or switching signals.

[0118] A direct connection can preferably run through the interior of the tubular handlebar, e.g., in such a way that the connection is not visible from the outside. It is also possible for a direct connection to run entirely or partially along the exterior of the tubular handlebar.

[0119] An indirect connection can also preferably run through the interior of the tubular handlebar. It is also possible for an indirect connection to run partially along the exterior of the tubular handlebar.

[0120] An indirect connection can preferably run through the interior of the stem. It is also possible for an indirect connection to run partially along the exterior of the stem.

[0121] Preferably, it can be provided that an indirect connection runs both through the interior of the tubular handlebar and through the interior of a stem connected to the handlebar, in particular in that the indirect connection runs from the interior of the tubular handlebar directly into the interior of the stem.

[0122] An indirect connection can also preferably run through the interior of the frame, for example through the head tube. It is also possible for an indirect connection to run partially on the outside of the frame. An indirect connection can, for example, run from outside the frame into the head tube of the frame in order to reach the interior of the frame. As described, the front fork is rotatably mounted in the head tube of the frame. In particular, the fork shaft of the front fork extends through the interior of the head tube. However, the fork shaft of the front fork can have a smaller outer diameter than the inner diameter of the head tube, so that inside the head tube, but outside the fork shaft of the front fork, there remains a free space through which the indirect connection can run.

[0123] Optionally, an indirect connection can also run through the inside of the front fork, particularly through the inside of the fork tube. An indirect connection can also run partially along the outside of the front fork.

[0124] In the context of these explanations, the terms “inside” and “outside” of the tubular handlebar, the stem, the frame, the front fork, etc., refer to the inside and outside in relation to the supporting structure, i.e., in the case of the tubular handlebar, for example, the supporting tube of the handlebar.

[0125] According to one embodiment, the first and / or second lighting device can be designed in two parts, such that a base unit is included which can be fastened to the tubular handlebar, and a light head is included which can be fastened to the base unit.

[0126] The first and / or second lighting device can preferably comprise a mechanical fastening system for releasably mechanically fastening the light head to the base unit, in particular cooperating fastening means on the base unit and on the light head, e.g., for fastening by screwing, plugging, plug-and-turn movement, and / or magnetic force. A plug-and-turn fastening can be enabled, for example, by a bayonet fastening system.

[0127] The first and / or second lighting device preferably comprises an electrical connection system for the detachable electrical connection of the light head to the base unit, in particular electrical contact means on the base unit and on the light head which can be contacted with one another and which establish the electrical connection in particular when the light head is fastened to the base unit.

[0128] The light head of the first and / or second lighting device can be designed such that, when attached to the base unit, it is arranged on the respective side of the opposite sides of the tubular handlebar, in particular protrudes axially beyond the respective front end of the tubular handlebar, and optionally forms the or a part of the outer section, optionally comprises the or a part of the outer housing.

[0129] The light head of the first and / or second lighting device can comprise the lighting means, which are particularly described in more detail above. The light head of the first and / or second lighting device can comprise the transparent intermediate housing, which is particularly described in more detail above.

[0130] The base unit of the first and / or second lighting device can be designed such that, when attached to the tubular handlebar, it is arranged entirely or partially inside the tubular handlebar, in particular can be inserted axially into the interior of the tubular handlebar, and optionally forms the or part of the inner section, optionally comprises the or part of the inner housing.

[0131] The first and / or second lighting device can each comprise an energy storage device, in particular the first lighting device one or the first energy storage device and the second lighting device one or the second energy storage device, wherein the energy storage device or devices are configured in particular to operate the lighting means of the first and / or second lighting device.

[0132] The energy storage device can be arranged in the base unit of the first and / or second lighting device, in particular the first energy storage device in the base unit of the first lighting device and the second energy storage device in the base unit of the second lighting device.

[0133] The lighting system can comprise means for connecting the first lighting device to the preferably included second lighting device, wherein the means for connection are designed in particular to be signal-carrying and / or current-carrying, wherein the means for connection are preferably designed to connect the base unit of the first lighting device to the preferably included second lighting device, in particular to the base unit of the preferably included second lighting device.

[0134] The first and / or second lighting device can comprise a contact terminal for contacting the connecting means, wherein the contact terminal is preferably arranged on the base unit. This makes it possible, in particular, for the connecting means to be connected to the base unit, which in turn is preferably connected to the light head via the electrical connection system.

[0135] The energy storage device of the first and / or second lighting device can be designed as a rechargeable energy storage device.

[0136] The lighting system may comprise a common charging unit configured to jointly charge the energy storage devices of the first and / or second lighting device, in particular to jointly charge the first energy storage device of the first lighting device and the second energy storage device of the preferably included second lighting device, in particular by transmitting charging currents via the connection means. The common charging unit may preferably comprise a charging port, in particular for coupling a charging device, preferably for plugging in a charging device. For example, a USB-C port may be provided.

[0137] The common charging unit can preferably be arranged in the first or second lighting device or can be arranged outside the first and second lighting device, for example on the handlebar, on the stem, on the front wheel fork or on the frame of the two-wheeled vehicle.

[0138] The common charging unit is preferably arranged only in the first or second lighting device or externally. In other words, preferably only one common charging unit is provided.

[0139] The shared charging unit can preferably be configured to provide power to additional devices that can be mounted on the two-wheeled vehicle, for example. The shared charging unit preferably has a power supply connection for providing power to additional devices, or the charging connection is also configured to provide power to additional devices. A corresponding bidirectional connection can be implemented, for example, via a USB-C port.

[0140] As described, a common charging unit comprises in particular a common charging connection for jointly charging the energy storage devices of the first and / or second lighting device, in particular for jointly charging the first energy storage device of the first lighting device and the second energy storage device of the preferably included second lighting device, in particular by transmitting charging currents via the means for connection.

[0141] A common charging unit may optionally also include a common charging controller or be connected to a common charging controller included in the lighting system.

[0142] A common charging unit can further be configured in particular to control a charging indicator which indicates during charging that a charging process is taking place and / or after charging has ended that the charging process has been completed.

[0143] The invention further discloses a set with a first and a second base unit for a two-wheeled vehicle, in particular a bicycle or electric bicycle, wherein the two-wheeled vehicle comprises a frame with a head tube and a front wheel fork rotatably mounted in the head tube, which is connected to a tubular handlebar via a stem. The set can also be referred to as an extension system. The set is particularly suitable for a lighting system according to the above embodiments.

[0144] The two base units of the set are designed for mounting on opposite sides of the tubular handlebar, wherein the two base units are configured such that, in the mounted state, they are arranged entirely or partially inside the tubular handlebar. The first base unit can preferably be inserted axially into the interior of the tubular handlebar at a first end of the tubular handlebar. The second base unit can preferably be inserted axially into the interior of the tubular handlebar at a second end of the tubular handlebar.

[0145] The first base unit comprises a first energy storage device and the second base unit comprises a second energy storage device, wherein the energy storage device is designed to provide energy for devices which can be mounted on the two-wheeled vehicle, for example for operating a lighting system.

[0146] Furthermore, the set comprises means for connecting the first base unit to the second base unit, wherein the means for connection are designed in particular to carry signals and / or currents.

[0147] The two base units preferably comprise a contact connection for, in particular detachably, contacting the means for connection.

[0148] The energy storage devices of the first and second base units can be designed as rechargeable energy storage devices.

[0149] The set may further comprise a common charging unit which is configured to jointly charge the energy storage devices of the first and second base units, in particular by transmitting charging currents via the connection means.

[0150] The common charging unit may preferably comprise a charging connection, in particular for coupling a charging device, preferably for plugging in a charging device.

[0151] The common loading unit may preferably be arranged in the first or second base unit or arranged outside the first and second base unit, for example on the handlebar, the stem, the front fork or the frame of the two-wheeled vehicle.

[0152] The common charging unit is preferably arranged only in the first or second base unit or externally. In other words, preferably only one common charging unit is provided.

[0153] The common charging unit can preferably be designed to provide energy for further devices which can be mounted on the two-wheeled vehicle, for example, wherein the common charging unit preferably has a supply connection for providing the energy for further devices or wherein the charging connection is also designed to provide energy for further devices. As described, the invention discloses in particular an embodiment of a lighting system with a first and a second lighting device and means for connecting the first lighting device to the second lighting device. Furthermore, as described, the invention discloses in particular a set with a first and a second base unit and means for connecting the first base unit to the second base unit.Based on this, the invention also discloses, more generally, an extension system for a two-wheeled vehicle having a first and a second extension unit and means for connecting the first extension unit to the second extension unit, wherein the first extension unit is designed as a first lighting device or as a first base unit, and wherein the second extension unit is designed as a second lighting device or as a second base unit. Such an extension system can, if the first and / or the second extension unit is designed as a lighting device, further comprise further features according to the lighting system described above. Such an extension system can, if the first and / or the second extension unit is designed as a base unit, further comprise further features according to the set described above.Such an extension system can also generally include further features according to the lighting system described above, provided that the term "lighting device" is replaced by the term "extension unit" for the respective feature. Such an extension system can also generally include further features according to the set described above, provided that the term "base unit" is replaced by the term "extension unit" for the respective feature.

[0154] The invention further discloses a handlebar unit for a two-wheeled vehicle, in particular a bicycle or electric bicycle, wherein the handlebar unit comprises a tubular handlebar and optionally a stem connected thereto, e.g. clamp-screwed thereto or formed integrally therewith, and wherein the handlebar unit comprises a mounted lighting system according to the above embodiments.

[0155] The invention further discloses a two-wheeled vehicle, in particular a bicycle or electric bicycle, comprising a frame with a head tube and a front wheel fork rotatably mounted in the head tube, which is connected to a tubular handlebar via a stem, and a handlebar unit and / or a mounted lighting system according to the above embodiments.

[0156] The invention is described in more detail below with reference to the figures.

[0157] Fig. 1-3 a three-dimensional view, as well as views from above and from the front of a

[0158] Two-wheeled vehicle with a mounted lighting system,

[0159] Fig. 4 a three-dimensional view of a two-wheeled vehicle with a mounted

[0160] Lighting system according to an embodiment with independent first and second lighting devices,

[0161] Fig. 5-6 three-dimensional detailed views of the first lighting device from Fig. 4, Fig. 7 a sectional view of the first lighting device from Fig. 4,

[0162] Fig. 8 is a three-dimensional view of a cover cap for covering a loading unit of a

[0163] lighting equipment,

[0164] Fig. 9-12 three-dimensional views of two-wheeled vehicles with mounted lighting systems according to embodiments with functionally complementary first and second lighting devices, wherein connections run through the interior of the tubular handlebar,

[0165] Fig. 13 is a sectional view of the two-wheeled vehicle of Fig. 10,

[0166] Fig. 14 a three-dimensional view of a two-wheeled vehicle with a mounted

[0167] Lighting system according to one embodiment with functionally complementary first and second lighting devices, wherein a direct connection is designed as a ribbon cable,

[0168] Fig. 15-16 a three-dimensional and a sectional view of a two-wheeled vehicle with a

[0169] Handlebar unit comprising an integrally formed handlebar and stem, with a lighting system mounted on the handlebar unit according to an embodiment with functionally complementary first and second lighting devices,

[0170] Fig. 17-18 a three-dimensional and a sectional view of a two-wheeled vehicle with a mounted

[0171] Lighting system according to one embodiment with functionally complementary first and second lighting devices, wherein an indirect connection runs through the interior of the front wheel fork,

[0172] Fig. 19-20 three-dimensional views of two-wheeled vehicles with mounted lighting systems according to embodiments with functionally complementary first and second lighting devices, wherein connections run on the exterior of the tubular handlebar,

[0173] Fig. 21 is a three-dimensional detailed view of the first lighting device from Fig. 19 in the assembled state, Fig. 22-24 are three-dimensional detailed views of a first lighting device of a

[0174] Embodiment with functionally complementary first and second lighting devices,

[0175] Fig. 25-27 three-dimensional exploded views concerning the assembly and construction of a

[0176] lighting equipment,

[0177] Fig. 28 is a three-dimensional exploded view of an intermediate housing of a

[0178] lighting equipment,

[0179] Fig. 29-30 a three-dimensional exploded view and a sectional view of an inner housing of a

[0180] Lighting device with circuit board,

[0181] Fig. 31-32 a three-dimensional detailed view and a sectional view of a first

[0182] Lighting device of an embodiment with functionally complementary first and second lighting devices, wherein the first lighting device comprises a charging unit for charging the first and second lighting devices,

[0183] Fig. 33-35 a three-dimensional detailed view and sectional views of a second

[0184] Lighting device of an embodiment with functionally complementary first and second lighting devices, wherein the second lighting device comprises a switching unit for switching the first and second lighting devices,

[0185] Fig. 36 a three-dimensional detailed view of a lighting device of a

[0186] lighting system with an internal switch,

[0187] Fig. 37-42 Views of various embodiments of two-part lighting devices,

[0188] Fig. 43-44 Views of a base unit, wherein the base unit comprises a first extension unit of a

[0189] extension system for a two-wheeled vehicle,

[0190] Fig. 45 a three-dimensional view of a two-wheeled vehicle with mounted

[0191] Lighting devices, wherein the lighting devices are designed in two parts, wherein the base units of the lighting devices are connected to each other, wherein connections run through the interior of the tubular handlebar,

[0192] Fig. 46 is a three-dimensional view of a two-wheeled vehicle with mounted extension units, wherein the extension units are connected to each other, wherein connections run through the interior of the tubular handlebar, Fig. 47 is a three-dimensional view of a lighting device with an adjustment device for the correction angle of the line former,

[0193] Fig. 48 is a top view of a two-wheeled vehicle with a mounted lighting system, with the correction angle of the line former adjusted,

[0194] Fig. 49-50 three-dimensional light simulation results for a first front light beam, which together with a second front light beam forms an overall front light beam.

[0195] Figs. 1-3 show a two-wheeled vehicle 1, here a bicycle 1, on whose handlebars a lighting system 100 with two lighting devices 110, 120 is attached, in particular mounted, in the operating state. A first lighting device 110 is located on the right side of the handlebar, and a second lighting device 120 is located on the left side of the handlebar.

[0196] The two lighting devices 110, 120 can generate multiple light beams directed in different directions relative to the two-wheeled vehicle 1. One or more front light beams 130 are directed forward relative to the bicycle 1. In the case shown here, each of the two lighting devices 110, 120 is configured to generate such a front light beam 130. Furthermore, one or more rear light beams 140 are directed rearward from the bicycle 1. Again, here, each of the two lighting devices 110, 120 is configured to generate such a rear light beam 140.

[0197] In addition, the lighting devices 110, 120 can also generate one or more ground light beams 150, which here are formed linearly on the ground. Specifically, such a linear ground light beam 150 can be emitted by a mounted lighting device 110, 120 such that it extends along the longitudinal direction of the two-wheeled vehicle 1. In the case shown here, each of the two lighting devices 110, 120 is again configured to generate such a ground light beam 150.

[0198] Fig. 4 shows a two-wheeled vehicle 1, here again a bicycle 1, with a frame 2 which comprises a head tube 4, and with a front wheel fork 6 which is rotatably mounted in the head tube 4 and which is connected via a stem 12 to a tubular handlebar 14 which has a handlebar grip 20 on each side.

[0199] According to one embodiment of the invention, two lighting devices 110, 120 are mounted on the two-wheeled vehicle 1, which are operable independently of one another. The lighting devices 110, 120 can, for example, be two identical or mirror-symmetrical units. Each of the two lighting devices 110, 120 is attached to a front end 16, 18 of the tubular handlebar 14. Specifically, each of the lighting devices 110, 120 is inserted into the interior of the tubular handlebar 14 and / or into the interior of the handlebar grip 20 at one of the two front ends 16, 18 of the handlebar 14, wherein the lighting devices 110, 120 are preferably only partially inserted, so that, particularly in the operating state, they still partially protrude from the interior of the handlebar 14 and / or the handlebar grip 20.

[0200] Fig. 5-6 now show in more detail the shape and attachment of the first lighting device 110, using the example of the second lighting device 120. The lighting device 110 has an inner section 200 and an outer section 300 connected thereto. The inner section 200 can be inserted into the interior of the handlebar grip 20 and / or into the interior of the handlebar bracket 14, wherein the handlebar grip 20 is, in turn, attached or attachable to the handlebar bracket 14. When the lighting device 110 is inserted and mounted, only the outer section 300 of the lighting device 110 protrudes outward from the handlebar grip 20 and / or the handlebar bracket 14.

[0201] One or more illumination devices 600 for generating one or more light beams are located on the outer portion 300. One of the illumination devices 600 is provided, for example, for generating a front light beam 130. Furthermore, in this case, a switching unit 800 is arranged on the outer portion 300 of the lighting device 110 for switching the one or more illumination devices 600 on, off, or between different operating modes. Furthermore, in this case, a charging unit 700 is arranged on the outer portion 300, to which a charging device can be connected in order to charge the lighting device 110.

[0202] In the example shown, the charging unit 700 is arranged on the front side of the outer section 300 and can be protected with a cover cap 390 that can also be attached and / or removed from the front side. Furthermore, in the example shown, the switching unit 800 is arranged on the casing side of the outer section 300.

[0203] Of course, other arrangements of the charging unit 700 and / or the switching unit 800 are also possible.

[0204] Fig. 7-8 show some further details of the first lighting device 110 mounted on a handlebar 14 and / or handlebar grip 20. In particular, it can be seen that mounting means 500 can be used to releasably fasten the lighting device 110 to the handlebar 14 and / or handlebar grip 20. In this example, this is specifically a fastening ring 500, which on the one hand encompasses the handlebar 14 and / or handlebar grip 20 from the outside and can thus be clamped, and on the other hand can be screwed to the lighting device 110, e.g., its outer housing 300.

[0205] As shown, the cover cap 390 has a flexible retaining web 392 and is held in an opening of the outer housing 300 by this retaining web 392 to prevent loss of the cover cap 390. Furthermore, the cover cap 390 is equipped with a sealing lip 394 to ensure a secure fit and / or watertight protection for the charging unit 700.

[0206] Figs. 9-13 again show two-wheeled vehicles 1 with frame 2, head tube 4, front wheel fork 6, as well as stem 12 and handlebar 14. According to one embodiment of the invention, two lighting devices 110, 120 are mounted on the two-wheeled vehicles 1 shown, which are directly and / or indirectly connected to one another via connecting means 900 and thus functionally complement one another. In particular, the connecting means 900 can enable the energy storage system of the two lighting devices 110, 120 to be charged via the same charging unit and / or the lighting devices of the two lighting devices 110, 120 to be switched via the same switching unit.

[0207] The connection between the two lighting devices 110, 120 can be implemented in different ways. The lighting system can also include an additional module 950, which enables an indirect connection between the two lighting devices 110, 120 and / or can provide additional functionality. For example, an additional module 950 can have an external energy storage device 770. Several options for a direct and / or indirect connection, possibly with additional module 950, are explained below. However, these are only examples and are not intended to be exhaustive.

[0208] One possibility is for a direct connection 910 to exist between the first lighting device 110 and the second lighting device 120 (see Fig. 9). Such a direct connection 910 can be established, for example, via a connecting cable, wherein the connecting cable has two cable ends, the first cable end being connected to the first lighting device 110 and the second cable end being connected to the second lighting device 120. Such a direct connection can, for example, enable a charging unit on the first lighting device 110 to also charge the second lighting device 120 and / or a switching unit on the second lighting device 120 to also switch the first lighting device 110.

[0209] It is preferably provided that the direct connection 910 runs through the interior of the handlebar 14, particularly preferably runs completely inside the handlebar 14.

[0210] Another possibility is for one of the two lighting devices 110, 120, for example, the first lighting device 110, to have an indirect connection 920 to an additional module 950 (Fig. 10). Via such an indirect connection 920, additional functionality can be provided, in particular, by means of the additional module 950. This additional functionality can be provided, in particular, via the indirect connection 920 for the first lighting device 110 and optionally also for the second lighting device 120 via a possibly existing direct connection 910.Additional functionality for the first and / or second lighting device 110, 120 can consist in the first and / or second lighting device 110, 120 being supplied with energy via an external energy storage device 770 of the additional module 950 or, if the first and / or second lighting device 110, 120 comprises an internal energy storage device, this can be supplemented by the external energy storage device 770 of the additional module 950. It is also possible for the additional module to comprise an external charging unit for connecting a charging device, so that the first and / or second lighting device can be charged via the external charging unit. An external switching unit can also be attached to the additional module 950, so that the first and / or second lighting device can be switched via the external switching unit.A further possibility is that an indirect connection 920, 922 to an additional module 950 exists between each of the two lighting devices 110, 120 (Fig. 11). In this case, too, additional functionality can be provided for the first and / or the second lighting device 110, 120 via the additional module. Furthermore, the two lighting devices 110, 120 can be indirectly connected to one another via the two indirect connections 920, 922 and the additional module 950, so that, for example, a charging unit on the first lighting device 110 can also charge the second lighting device 120 and / or a switching unit on the second lighting device 120 can also switch the first lighting device 110.

[0211] Preferably, an indirect connection 920, 922 is provided that it runs through the interior of the handlebar 14, particularly preferably inside the handlebar 14, and from there into the interior of the stem 12. From there, the indirect connection 920, 922 can extend outward. From the outside, the indirect connection 920, 922 can extend into the interior of the frame 2, in particular via the head tube 4 of the frame.

[0212] Another possibility is for an indirect connection 924 to branch off from a direct connection 910 between the two lighting devices 110, 120 and extend to an additional module 950 (Fig. 12). In this case, too, a mutual functional complementation of the two lighting devices 110, 120 and / or a further provision of functionality can occur via the additional module, whereby the above statements apply analogously in particular.

[0213] Preferably, such an indirect connection 924 branches off from the direct connection 910 inside the handlebar 14 and extends into the interior of the stem 12. From there, the indirect connection 924 can extend outward. From the outside, the indirect connection 924 can extend into the interior of the frame 2, in particular via the head tube 4 of the frame.

[0214] Fig. 14 again shows an example of a direct connection 910 between two lighting devices 110, 120 mounted on the left and right sides of the handlebar. The direct connection 910 is designed as a ribbon cable that runs through the interior of the handlebar, so that it is not visible from the outside. The ribbon cable has two cable ends, one cable end being connected to the inner section 200 of the first lighting device 110, which is inserted into the interior of the handlebar 14, and the other cable end being connected to the inner section 200 of the second lighting device 120, which is inserted into the interior of the handlebar 14. A cable of a direct connection 910 can have a certain excess length, so that the first and / or second lighting device 110, 120 can be removed from the handlebar 14 while the cable is connected.

[0215] Fig. 15-16 show another example of a two-wheeled vehicle 1 with mounted first and second

[0216] Lighting device 110, 120, as well as a direct connection 910 between the lighting devices 110, 120 and an indirect connection 920 to an additional module 950. This example is comparable in some aspects to Figs. 10 and 13.

[0217] In the example shown here, however, the handlebar unit 10 comprises a handlebar bracket 14 and a stem 12 integrally connected thereto, with the interior of the handlebar bracket 14 and the interior of the stem 12 communicating with each other, forming a shared interior space. Connections can run through this shared interior space, here the direct connection 910 and the indirect connection 920.

[0218] Fig. 17-18 show yet another example of a two-wheeled vehicle 1 with mounted first and second lighting devices 110, 120, as well as a direct connection 910 between the lighting devices 110, 120 and an indirect connection 920 to an additional module 950. This example is again comparable in some aspects to Figs. 10 and 13. In the example shown here, the handlebar unit 10 is designed in two parts, as in most of the previous examples, and comprises a handlebar bracket 14 and a stem 12 braced thereto, wherein an opening facing the interior of the stem 12 is provided in the center of the handlebar bracket 14, so that the interior of the handlebar bracket 14 communicates with the interior of the stem 12 and an indirect connection can run there.

[0219] The example shows that an indirect connection, here the connection 920, can optionally also run through the interior of the front wheel fork 6, in particular its fork shaft. This ensures that the connection does not emerge from the interior of the stem 12 to the outside, in order to then, for example, via the head tube 4, reach the interior of the frame 2. Rather, the front wheel fork 6 connected to the stem 12 has an opening at its upper end facing the interior of the stem 12, so that the interior of the front wheel fork 6 communicates with the interior of the stem 12, so that an indirect connection can run from the interior of the stem 12 into the interior of the front wheel fork 6. The front wheel fork also preferably has a further opening which faces the interior of the frame 2, so that an indirect connection can reach from the interior of the front wheel fork into the interior of the frame.

[0220] Fig. 19-20 shows a lighting system mounted on a handlebar 14 of a two-wheeled vehicle 1, comprising lighting devices 110, 120, as well as a direct connection 910 between the lighting devices, an indirect connection 920 between the first lighting device 110 and an additional module 950, and / or an indirect connection 922 between the second lighting device 120 and the additional module 950. In this case, the indirect connection 920 and / or the indirect connection 922 runs externally on the handlebar 14. The direct connection runs through the interior of the handlebar 14. However, it is also possible in principle for a direct connection 910 to run externally on the handlebar 14.

[0221] Fig. 21 shows in more detail how a connection running externally on the handlebar 14, here the indirect connection 920, can be connected to a lighting device mounted on the handlebar 14, here the first lighting device 110. The connection running externally on the handlebar 14, here the indirect connection 920, can run between the handlebar 14 and the handlebar grip 20 fastened thereon up to the front end of the handlebar 14 and / or up to the outer section 300 of the lighting device. There, the connection running externally on the handlebar can be connected to the lighting device. It is possible for a connection running externally on the handlebar to be designed entirely or partially as a ribbon cable. In the case shown, for example, the part of the connecting cable running below the handlebar grip 20 is designed as a ribbon cable.

[0222] Fig. 22-24 show a first lighting device 110, which according to an embodiment of the invention can be functionally connected to a second lighting device 120, in particular via a means for connection 900.

[0223] The details explained below by way of example with reference to the first lighting device 110 are, unless exceptionally stated otherwise, equally valid for a second lighting device 120. Furthermore, the details explained below are also valid for lighting devices 110, 120 that can be operated independently of one another according to an embodiment of the invention, unless exceptionally stated otherwise.

[0224] The lighting device 110 comprises an inner section 200 with an inner section diameter 202 and an inner section length 204, and an outer section 300 with an outer section diameter 302 and an outer section length 304. The inner section length 204 is greater than the outer section length 304, preferably by at least a factor of 2, particularly preferably by at least a factor of 4. The outer section diameter 302 is greater than the inner section diameter 202, preferably by at least a factor of 1.25, particularly preferably by at least a factor of 1.5. A transition is formed between the inner section 200 and the outer section 300 by a radial collar 400, which, when the lighting device 110 is mounted on the handlebar bracket 14, comes to rest against the front end of the handlebar bracket 14.

[0225] The inner section 200 of the lighting device 110 can have a contact terminal 850 for the detachable connection of a connecting means 900. Furthermore, the inner section 200 can accommodate an energy storage device, here the first energy storage device 750. In the assembled state, the energy storage device is thus located inside the handlebar 14. The energy storage device 750 can be located between the contact terminal 850 and the outer section 300 of the lighting device 110.

[0226] The outer section 300 of the lighting device 110 in particular has one or more lighting means 600. The outer section 300 preferably has a front light 610, which generates a front light beam 130 when mounted. The outer section 300 preferably also has a rear light 620, which generates a rear light beam 140 when mounted. It is possible for the outer section 300 to also have a ground light 630, which generates a ground light beam 150 when mounted. Figs. 25-26 show how the lighting device 110 can be mounted on a handlebar grip 20 and / or on a handlebar 14. For this purpose, the lighting device 110 comprises means for mounting 500, namely a fastening ring 510, fastening screws 520, and screw holes 410, which are located in the radial collar 400 of the lighting device 110.

[0227] The fastening ring 510 for the lighting device 110 is preferably designed as a handlebar grip fastening ring, so that the handlebar grip is fastened to the handlebar bracket 14 on the inner side with a handlebar grip fastening ring 22 and on the outer side with the fastening ring 510 for the lighting device 110. The fastening ring 510 is clamped to the handlebar bracket 14 and / or to the handlebar grip 20 using a device for circumferential variation 514. The fastening ring 510 is preferably fastened to the handlebar bracket 14 at the edge such that the fastening ring 510 forms a frontal contact surface on the front end of the handlebar bracket 14. When the lighting device 110 is mounted on the handlebar 14 and / or on the handlebar grip 20, the lighting device 110 thus comes to rest with its radial collar 400 on the fastening ring 510.

[0228] The fastening ring 510 has axial screw holes 512 which can be aligned with the screw holes 410 in the radial collar 410 of the lighting device 110 so that the lighting device 110 can be screwed to the fastening ring 510 with fastening screws 520.

[0229] The lighting device 110 is preferably constructed with multiple housing parts, in particular with an inner housing 250 and an outer housing 350 and, if appropriate, a sealing ring 480 located therebetween. The inner housing preferably comprises the radial collar 400 with the screw holes 410 for fastening. Preferably, the inner housing 250 can be simultaneously connected to the outer housing 350 by means of the fastening screws 520. However, it is also possible for the inner housing 250 to be connected to the outer housing 350 in another way.

[0230] Fig. 27 and 28 show further details of the structural design of the lighting device 110, which, as described, has in particular an inner housing 250 and an outer housing 350.

[0231] The inner housing 250 of the lighting device 110 has, in particular, an inner housing sleeve 260 in which an energy storage device of the lighting device 110 can be arranged. The inner housing sleeve 260 terminates on the side facing the outer housing 350 with an inner housing flange 270, which, on the one hand, forms the radial collar 400 and, on the other hand, serves for attaching a printed circuit board 430.

[0232] The outer housing 350 of the lighting device 110 has an outer housing end face 380 with a charging connection recess 382 located therein, so that a charging unit 700 is accessible from the end face and, for example, a charging plug can be plugged in. The charging connection recess 382 can be closed with a cover cap 390, wherein the cover cap 390 can be connected to the outer housing 350 in a particularly watertight manner, e.g., with the aid of a cover cap sealing ring 388.

[0233] As already explained, the details explained using the example of this lighting device 110 also apply to lighting devices that can be operated independently. Conversely, however, details described in connection with a lighting device that can be operated independently can also be applied to the lighting device 110 explained here; for example, the cover cap 390 can also be designed as shown in Figs. 7-8.

[0234] Between the inner housing 250 and the outer housing 350 is an intermediate housing 450, which is in particular made in one piece from a transparent material. This transparent intermediate housing 450 forms in particular lamp covers 656, 666, 676 for the lamps 610, 620, 630 of the lighting device 110. These lamp covers 656, 666, 676 engage in lamp recesses 370 in the outer housing shell 360 of the outer housing 350. The intermediate housing 450 also covers the components on the circuit board 430, but in the case of the first lighting device 110, has an axial charging port opening 452, which is accessible through the charging port recess 382 in the outer housing 350. The outer housing 350 is placed on the inner housing flange 270, with a sealing ring 480 preferably ensuring a watertight connection.

[0235] Figs. 29-30 show the circuit board 430 mounted on the inner housing flange 270 with components attached thereto. The lighting device 110 comprises a plurality of light sources 650, 660, 670, each with an associated light shaper 654, 664, 676. The light sources 650, 660, 670 are contacted on the same circuit board 430, as are the associated light shapers 654, 664, 676.

[0236] The first light source 650 and the first light shaper 654, and preferably the first light cover 656, form the front light 610 of the lighting device 110 and are configured to generate the front light beam 130. The first light source 650 is designed as a light-emitting diode arranged planarly on the circuit board 430 with an axial radiation direction, which is deflected into a radial radiation direction by the light shaper 654 designed as a reflector.

[0237] The second light source 660 and the second light shaper 664, and preferably the second light cover 666, form the rear light 620 of the lighting device 110 and are configured to generate the rear light beam 140. The second light source 660 is also designed as a light-emitting diode arranged planarly on the circuit board 430 with an axial radiation direction, which is deflected into a radial radiation direction by the light shaper 664 designed as a reflector.

[0238] The third light source 670 and the third light shaper 674, and preferably the third light cover 676, form the floor light 630 of the lighting device 110 and are configured to generate the floor light beam 150. The third light source 660 is designed as a laser diode contacted on the circuit board 430 with radially focused radiation, which is fanned out into a linear radiation by the light shaper 674 designed as a line shaper. So that the linear light beam runs along the longitudinal direction of the two-wheeled vehicle 1 in the mounted state, the light shaper is mounted rotated about the radial axis at a correction angle q>. This compensates for the oblique course of the handlebar 14 relative to the transverse direction of the two-wheeled vehicle 1.

[0239] Figs. 31-32 again show the first lighting device 110 of a lighting system 100 with two lighting devices 110, 120, which functionally complement each other. The first lighting device 110 has, in particular, a charging port 710, which is contacted on the circuit board 430 and is protected by the cover cap 390 that can be removed from the outer housing 350. For example, USB-PD can be provided for the charging port 710.

[0240] The charging port 710 of the first lighting device 110 can be used to charge both the energy storage device 750 of the first lighting device 110 and the energy storage device 760 of the second lighting device 120. In other words, the charging port 710 of the first lighting device 110 functionally complements the second lighting device 120, so that the latter preferably does not require its own charging port.

[0241] Figs. 33-35 show the second lighting device 120 of a lighting system 100 with two lighting devices 110, 120, which functionally complement each other. Like the first lighting device 110, the second lighting device 120 has a contact terminal 850 arranged on the inner section 200, to which a connection means 900 can be connected in order to establish a direct connection to the first lighting device 110 and / or an indirect connection to an additional module 950. As already described, the above statements generally apply analogously to the second lighting device 120, unless otherwise stated.

[0242] Unlike the first lighting device 110, however, the second lighting device 120 in this example does not have its own charging port 710, a charging port recess 382 in its outer housing 350, or a cover cap 390. This is because the second energy storage device 760 is charged via the connection 900 in this case.

[0243] However, the second lighting device 120 comprises a switching unit 800 with a switch 810 contacted on the circuit board 430. The switch can be actuated via an actuating element 820, wherein the actuating element 820 in this example is composed of two elements. An elastically deformable disc 820, which can be pressed by a user (see Fig. 35), can be arranged in an actuating element recess 384 in the outer housing 350. This allows a pressure pulse to be transmitted to the switch 810 via a further actuating element element 820. With the switching unit 800 of the second lighting device 120, both the lights 610, 620, 630 of the second lighting device 120 and the lights 610, 620, 630 of the first lighting device 110 can be switched.In other words, the switching unit 800 of the second lighting device 120 functionally complements the first lighting device 110, so that the latter preferably does not require its own switching unit.

[0244] Fig. 36 shows a lighting device 110 of a lighting system 100 that can be mounted on a handlebar 14 and has an internal switch 830. The lighting device 110 that can be mounted on the handlebar preferably comprises a handlebar grip 20, wherein the handlebar grip 20 can be fastened to the handlebar, for example, with one or more handlebar grip fastening rings. In the example shown, the handlebar grip 20 can be fastened with an internal handlebar grip fastening ring 22 and with an edge-side fastening ring 510, which can also serve to fasten the lighting device 110.

[0245] In this example, the lighting system 100 comprises a switching unit 800 with an internal switch 830, designed in particular as a push-button, which, when the lighting device is mounted, is directed rearward with respect to the two-wheeled vehicle and can be actuated in the radial direction, in particular by a pressure pulse. In this example, the internal switch is arranged in the handlebar grip 20, in particular on the side facing the internal handlebar grip fastening ring 22. It is therefore particularly possible to actuate the internal switch 830 with the thumb. The internal switch 830 can, for example, be designed to actuate a turn signal mode, so that one or more of the lights of the lighting means 600 can serve as direction indicators.

[0246] Of course, the lighting system 100 can have an internal switch 830 on each side of the handlebar. These internal switches 830 can be arranged in the respective lighting device 110, 120, in particular in a handlebar grip 20 associated therewith and / or an associated fastening body.

[0247] In general, a switching unit of a lighting system can comprise one or more thumb-operated switches for switching one or more of the lighting elements of the lighting system, in particular for switching them on, off, and / or switching them to different operating modes. For example, it can be provided that the front lights and / or rear lights can be switched on using a thumb-operated switch. It can also be provided, for example, that a turn signal mode can be switched on using the same or another switch, in particular a thumb-operated switch.

[0248] A lighting system can comprise an indicator mode in which a front light and / or a rear light of a lighting device serves as a direction indicator. For this purpose, the front light and / or the rear light can, for example, comprise a light source which is designed to generate different light colors. It is also possible for the front light and / or the rear light to comprise an additional light source for an indicator mode, wherein the additional light source can, for example, be assigned to the same light shaper as the front light or rear light. However, it is also possible for a supplementary indicator front light and / or indicator rear light to be installed in the first and / or second lighting device for the indicator mode.

[0249] The light color for the indicator mode is preferably yellow. The light color for the front light is preferably white. The light color for the rear light is preferably red.

[0250] In a further development of the invention, a lighting system can also include a horn function. For this purpose, a piezo component or a loudspeaker can be integrated into a lighting device.

[0251] Fig. 37 shows a two-part embodiment of a lighting device 110. The lighting device 110 has a base unit 160, which can be fastened to the tubular handlebar 14 and / or to the handlebar grip 20, and a light head 170 which in turn can be fastened to the base unit 160.

[0252] The light head 170 can be connected to the base unit 160 with a quick-release coupling so that the light head 170 can be quickly removed from the base unit 160. The base unit 160, in contrast, is fastened to the handlebar 14 and / or to the handlebar grip 20 by means of mounting means 500, so that the base unit 160 remains firmly mounted on the two-wheeled vehicle when the light head 170 is detached from the base unit 160. The mounting means can, for example, comprise a fastening ring that can be clamped around the handlebar tube from the outside, so that the base unit 160 can be screwed thereto, in particular by means of a flange of the base unit 160.

[0253] Fig. 38 shows another two-part embodiment of a lighting device, which is designed for mounting on the front end of a handlebar 14. This embodiment corresponds in many aspects to the previously described two-part embodiment. Accordingly, a two-part design is also consistent, such that the light head 170 can be attached to the base unit 160 and the base unit 160 can be attached to the handlebar bracket 14 and / or the handlebar grip 20.

[0254] What is different in particular is that in this case, the base unit 160 is firmly attached to the handlebar grip 20 by means of mounting means 500. The handlebar grip 20 is in turn attached to the handlebar tube 14, so that the base unit is also attached to the handlebar tube 14 via the handlebar grip 20.

[0255] The light head 170 is fastened to the base unit 160 by means of a mechanical fastening system 180, which is designed in particular as a quick coupling, e.g. by plugging in as shown here. When the light head 170 is fastened to the base unit 160, the light head 160 protrudes beyond the axial end of the tubular handlebar 14. The light head 170 therefore forms at least part of the outer housing 350 of the lighting device 110. In contrast, the base unit 160 is located at least partially inside the handlebar 14 in the assembled state. The base unit 160 thus forms at least part of the inner housing 250 of the lighting device 110. The light head 170 and the base unit 160 are further connected by means of an electrical connection system 190 when the light head 170 is fastened to the base unit 160.This enables an electrical connection of the lighting means 600, which are arranged in the light head 170, to the energy storage device 750, which is arranged in the base unit 160. In one example, the electrical connection system 190 can be configured as a USB-C plug and USB-C socket.

[0256] The lighting system further comprises a contact connection 850, which is arranged on the base unit 160. The contact connection 850 can thus be located inside the handlebar 14 when mounted. The contact connection 850 is configured to connect the base unit 160 of the lighting device to another base unit on the opposite side of the handlebar 14. For this purpose, connection means 900 are included, which establish a connection between the shown base unit 160 and a second base unit (not shown). The connection means 900 can be permanently connected to the base unit(s) 160 or detachably connectable. In the example shown, a connection is made via USB-C.

[0257] The base unit 160 also includes a charging unit 700. In the example shown, the charging unit includes a charging port formed by a USB-C connector. In this example, the charging port is formed by the electrical connection system. This means that when the light head 170 is uncoupled from the base unit 160 and the electrical connection system 190 is disconnected, the USB-C connector on the base unit 160 is accessible and can be used as a charging port for the charging unit 700.

[0258] In this case, the charging unit 700 is designed as a common charging unit. By connecting a charging device to the charging connection, both the energy storage device 750 of the first lighting device and the energy storage device of the second lighting device connected thereto via the connection means 900 can be charged. The contact connection 850 and the connection means 900 are therefore configured, in particular, for transmitting charging currents.

[0259] Figs. 39 and 40 show another two-part embodiment of a lighting device. This embodiment corresponds in many aspects to the previously described two-part embodiments. Accordingly, a two-part design is also consistent, such that the light head 170 can be attached to the base unit 160, and the base unit 160 can be attached to the handlebar bracket 14 and / or the handlebar grip 20.

[0260] Furthermore, the light head 170 can be attached to the base unit 160 by a mechanical fastening system 180, which is designed as a quick-connect coupling. For this purpose, the mechanical fastening system 180 comprises cooperating fastening means 182 in the light head 170 and in the base unit 160.

[0261] In this case, the base unit 160 can be fully inserted into the interior of the tubular handlebar 14. Thus, the base unit has no flange in this case. The base unit 160 is secured in this case by means of mounting means 500, which are designed as slats that are designed to clamp against the interior of the handlebar 14.

[0262] Fig. 41 shows another two-part embodiment of a lighting device. This embodiment corresponds in many aspects to the previously described two-part embodiments. Accordingly, a two-part design is also consistent, such that the light head 170 can be attached to the base unit 160, and the base unit 160 can be attached to the handlebar 14 and / or the handlebar grip 20.

[0263] In this case, the light head 170 can be magnetically attached to the base unit 160. The light head 170 and the base unit comprise mutually cooperating fastening means 182 for magnetic attachment. The mutually cooperating fastening means 182 thus form the mechanical fastening system 180 for attaching the light head 170 to the base unit 160, which in turn provides a quick-coupling mechanism.

[0264] The light head 170 can, in particular, be mounted so as to be axially rotatable in order to be able to change the angle of the main beam direction of the front light relative to the vertical. This can also be provided in other embodiments.

[0265] Furthermore, it is provided that the energy storage device 750, which is arranged, for example, in the base unit 160, can be removed from the base unit 160. This allows the base unit 160 to remain mounted on the handlebar 14 when the energy storage device 750 is removed and to remain connected to a second lighting system via connection means 900. Removing the energy storage device 750 from the base unit allows it to be charged, for example, outside the base unit 160, for example in an external charging cradle.

[0266] For example, it may include a charging cradle configured to charge the two energy storage devices 750, 760 of the lighting devices that can be mounted on either side. In the example shown, the energy storage devices 750, together with a charging unit 700, form a removable unit.

[0267] Fig. 42 shows another two-part embodiment of a lighting device. This embodiment corresponds in many aspects to the previously described two-part embodiments. Accordingly, a two-part design is also consistent, such that the light head 170 can be attached to the base unit 160, and the base unit 160 can be attached to the handlebar 14 and / or the handlebar grip 20.

[0268] In this case, the light head 170 comprises the energy storage device 750. The light head 170 can also be inserted into the base unit 160. In other words, the light head 170, in the attached state, is axially inserted into the base unit 160, which is located at least partially inside the handlebar 14. It is possible for the energy storage device 750 to be detachable from the light head 170. For example, the energy storage device 750 can in turn form a unit with a charging unit, which can be detachably attached to the light head 170, e.g., via USB-C.

[0269] Figs. 43 and 44 show a base unit 160 for mounting on the front end of a handlebar 14. The base unit corresponds in many aspects to the base unit of the previously described two-part embodiments. The base unit 160 can also be used without light heads. Therefore, the base unit 160 forms an extension unit 111 for a two-wheeled vehicle, with a second extension unit preferably being provided so that both extension units form an extension system.

[0270] The base unit 160 has an energy storage device 750 and a charging unit 700. Furthermore, a contact terminal 850 is preferably provided for fixed or detachable contacting of connecting means 900. This allows a connection to a second base unit (not shown).

[0271] The base units, ie, the expansion units, can comprise at least one front-end charging unit 700, which is preferably designed as a common charging unit. Furthermore, a cover cap 290 can be provided for the front end.

[0272] Fig. 45 shows a two-wheeled vehicle with a mounted lighting system 100 comprising a first lighting device 110 and a second lighting device 120. In the example shown, the lighting devices 110, 120 are each formed in two parts, so that the light heads can be removed from the permanently mounted base units.

[0273] The lighting devices 110, 120 are connected by means of connecting means 900, which extend in particular inside the tubular handlebar 14. The connecting means 900, in particular, enable joint charging for both lighting devices 110, 120. For this purpose, a common charging unit is included, in particular.

[0274] In the embodiment shown, as well as in other embodiments that have connection means, a common charging port can be provided at one or more positions. A common charging unit and / or a common charging port can be installed, for example, in one of the two lighting devices. However, as shown, it is also possible for the common charging unit 700 to be arranged externally of the lighting devices 110, 120, e.g., positioned on the two-wheeled vehicle, e.g., here in the front section of the two-wheeled vehicle. The external charging unit 700 is connected to the energy storage devices of both lighting devices, in this case via a branch at the connection means 900.

[0275] Fig. 46 shows a two-wheeled vehicle with a mounted extension system 101 comprising a first extension unit 111 and a second extension unit 121, wherein the extension units 111, 121 are each designed as base units, in particular according to the above explanations. The extension units thus correspond in many aspects to the previously described base units of a lighting system.

[0276] The extension units 111, 121 are in turn connected to connecting means 900, which extend through the interior of the handlebar 14. Furthermore, a common charging unit 700 is provided, which can be arranged, for example, in the handlebar 14.

[0277] In this embodiment, but also generally in the previously described embodiments, it can be provided that the common charging unit 700 is designed to provide energy for additional devices that can be mounted, for example, on the two-wheeled vehicle. For this purpose, the common charging unit 700 can preferably have a supply connection for providing energy for the additional devices. However, it is also possible for an internal or external charging connection to simultaneously serve to provide energy. For this purpose, a USB-C port, for example, can be used, which is configured on the one hand for charging and on the other hand for providing energy.

[0278] Devices such as a smartphone can thus be charged via a charging unit 700, in particular an internal or external charging unit, and / or a corresponding charging port, particularly when such a device is mounted on the two-wheeled vehicle. For example, it is possible to connect an inductive charging mount for a smartphone to a supply port or a charging port configured to provide energy.

[0279] Fig. 47 shows an embodiment of a lighting device 110 with an adjustment device 680, which is configured to adjust the correction angle q> of a third light former 674, which is designed in particular as a line former. For this purpose, the third light former 674 is mounted so as to be rotatable about the radial axis. By slightly loosening the mounting means, in this case the screws which engage through the fastening ring 510 into the outer housing 350, the inner housing flange 270 and thus the inner housing 250 can be rotated about the axial direction relative to the outer housing 350 and the fastening ring 510 via the adjustment device 680, which is designed, for example, as a projection extending radially from the inner housing flange 270. For this purpose, the inner housing flange 270 further has elongated holes through which the screws extend, wherein the elongated holes simultaneously serve as a limit for the adjustment.By engaging an engagement pin 681 extending axially from the inner housing flange 270 into a lateral engagement opening of the third light shaper 674, the correction angle q> can be adjusted by rotating the inner housing 250. In this embodiment, but also in other embodiments, a printed circuit board 430 can be attached to the outer housing 350 and / or to the intermediate housing 450.

[0280] Fig. 48 shows a two-wheeled vehicle 1 with mounted lighting devices 110, 120, wherein the ground light beam 150 is designed to be rotatable, in particular about the perpendicular. For this purpose, the correction angle q> can be adjusted, in particular as described above. Thus, the ground light beam 150, designed in particular as a laser line, can advantageously be adapted to the respective oblique course of a specific handlebar 14 relative to the transverse direction of the two-wheeled vehicle 1 (see, for example, the lighting device 110). Figs. 49 and 50 show a lighting system 100 mounted on a two-wheeled vehicle 1, wherein two lighting devices are mounted on opposite front ends of the handlebar. The total illumination resulting from the superposition of the two front light beams is shown.Both the first and the second lighting device, more precisely their headlights, each generate a headlight beam with a main radiation direction 132, 134. The two headlight beams form the overall headlight beam 136. The headlights of the two lighting devices are coordinated with one another in such a way that an overall headlight beam 136 is created, which is suitable for illumination to the front, thus ensuring improved visibility for the driver of the two-wheeled vehicle. The two headlights therefore serve, in particular, not merely to make the two-wheeled vehicle more visible to other road users. The overall headlight beam 136 is preferably designed such that at a central position 138 there is an overall light intensity which has a certain minimum value. This value can, for example, be at least 50% of the light intensity of one of the light intensity maxima (Fig. 49) or even higher, e.g.at least 75%, 100% or 125%, so that a plateau or even an absolute maximum of the light intensity is formed at the central position 138 (Fig. 50).

[0281] List of reference symbols

[0282] 1 two-wheeled vehicle

[0283] 2 frames

[0284] 4 Head tube

[0285] 6 front fork

[0286] 10 Handlebar unit

[0287] 12 Stem

[0288] 14 handlebars

[0289] 16 First front end

[0290] 18 Second front end

[0291] 20 handlebar grips

[0292] 22 Handlebar grip mounting ring

[0293] 100 lighting system

[0294] 101 Expansion System

[0295] 110 First lighting device

[0296] 111 First expansion unit

[0297] 120 Second lighting device

[0298] 121 Second expansion unit

[0299] 130 front light beams

[0300] 132 Main radiation direction

[0301] 134 Main radiation direction

[0302] 136 total front light beams

[0303] 138 Central position

[0304] 140 rear light bundles

[0305] 150 ground light bundles

[0306] 160 base unit

[0307] 170 light head

[0308] 180 Mechanical fastening system

[0309] 182 Cooperating fasteners

[0310] 190 Electrical connection system

[0311] 192 Contact elements that can be contacted together

[0312] 200 interior section

[0313] 202 inner section diameter

[0314] 204 inner section length

[0315] 250 inner casings

[0316] 260 inner housing sleeve

[0317] 270 inner housing flange

[0318] 290 Cover cap 300 Outer section

[0319] 302 outer section diameter

[0320] 304 outer section length

[0321] 350 outer casing

[0322] 360 outer casing

[0323] 370 luminaire recesses

[0324] 380 outer casing front side

[0325] 382 Charging port recess

[0326] 384 Actuator recess

[0327] 388 Cover cap sealing ring

[0328] 390 cover cap

[0329] 392 Flexible holding bridge

[0330] 394 sealing lip

[0331] 400 Radial Collar

[0332] 410 screw holes in the radial collar

[0333] 430 circuit board

[0334] 450 Transparent intermediate housing

[0335] 452 Charging port opening

[0336] 454 Actuator opening

[0337] 480 sealing ring

[0338] 500 means for assembly

[0339] 510 mounting ring

[0340] 512 screw holes in the mounting ring

[0341] 514 Device for circumference variation

[0342] 520 fastening screw

[0343] 600 lighting devices

[0344] 610 front light

[0345] 620 rear light

[0346] 630 floor lamp

[0347] 650 First light source

[0348] 654 First Light Shaper

[0349] 656 First light cover

[0350] 660 Second light source

[0351] 664 Second Light Shaper

[0352] 666 Second lamp cover

[0353] 670 Third light source

[0354] 674 Third Light Shaper

[0355] 676 Third light cover

[0356] 680 Adjustment device 681 Engagement pin

[0357] 700 loading units

[0358] 710 charging port

[0359] 750 First energy storage 760 Second energy storage

[0360] 770 External energy storage

[0361] 800 switching unit

[0362] 810 switches

[0363] 820 Actuator 830 Internal switch

[0364] 850 contact connection

[0365] 900 means of connection

[0366] 910 Direct connection

[0367] 920 Indirect connection 922 Indirect connection

[0368] 924 Indirect connection

[0369] 950 additional module

Claims

1. A lighting system (100) for a two-wheeled vehicle (1), in particular a bicycle or electric bicycle, wherein the two-wheeled vehicle (1) comprises: a frame (2) with a head tube (4) and a front wheel fork (6) which is rotatably mounted in the head tube and is connected to a tubular handlebar (14) via a stem (12), wherein the lighting system comprises: a first lighting device (110) for mounting on a first front end (16) of the tubular handlebar (14), wherein the first lighting device (110) has an inner section (200) and an outer section (300) which is in particular connected thereto, wherein the inner section (200) can be inserted axially into the interior of the tubular handlebar (14) at the first front end (16) of the tubular handlebar (14) and the outer section (300) can be inserted over the first front end (16) of the tubular handlebar (14) protrudes axially,and preferably a second lighting device (120) for mounting on a second front end (18) of the tubular handlebar (14), wherein the second lighting device (120) has an inner section (200) and an outer section (300), in particular connected thereto, wherein the inner section (200) at the second front end (18) of the tubular handlebar (14) can be inserted axially into the interior of the tubular handlebar (14) and the outer section (300) projects axially beyond the second front end (18) of the tubular handlebar (14).

2. Lighting system (100) for a two-wheeled vehicle (1) according to the preceding claim, wherein the inner section (200) of the first and / or second lighting device (110, 120) has an inner section diameter (202) which is in particular smaller than the diameter of a standard bicycle handlebar in the grip area, wherein the outer section (300) of the first and / or second lighting device (110, 120) has an outer section diameter (302) which is larger than the inner section diameter (202), in particular such that the outer section (300) radially projects beyond the inner section (200) and / or radially projects beyond the diameter of a standard bicycle handlebar in the grip area, and wherein the first and / or second lighting device (110, 120) has a radial, in particular step-shaped, collar (400),which forms a transition between the inner section (200) and the outer section (300) and / or between the inner section diameter (202) and the outer section diameter (302).

3. Lighting system (100) for a two-wheeled vehicle (1) according to one of the preceding claims, wherein the first and / or second lighting device comprise means for mounting (500) on the front end of the tubular handlebar, wherein the means for mounting (500) preferably comprise: one or more screw holes (410) in the radial collar of the lighting device and / or a fastening ring (510) which can be fastened on the one hand to the tubular handlebar (14) and on the other hand can be fastened directly or indirectly to the lighting device (110, 120), wherein the fastening ring (510) preferably has a device for circumferential variation (514) in order to clamp the fastening ring (510), preferably from the outside, to the tubular handlebar (14), and wherein the fastening ring (510) preferably has one or more screw holes (512) in the axial direction in order to screw the fastening ring (510) to the lighting device (110, 120), in particular through the screw holes (410) in the radial collar (400) of the lighting device (110, 120), and wherein the fastening ring is preferably designed as a standard clamping ring which is compatible with a standard bicycle handlebar grip system.

4. Lighting system (100) for a two-wheeled vehicle (1) according to one of the preceding claims, wherein the inner section diameter (202) of the first and / or second lighting device (110, 120) is between 10 and 20 millimeters, preferably between 15 and 20 millimeters and / or wherein the outer section diameter (302) of the first and / or second lighting device (110, 120) is between 10 and 60 millimeters, preferably between 22 and 60 millimeters, more preferably between 22 and 35 millimeters and / or wherein the inner section (200) of the first and / or second lighting device (110, 120) has an axial inner section length (204) which is between 10 and 150 millimeters, preferably between 40 and 100 millimeters and / or wherein the outer section (300) of the first and / or second lighting device has an axial outer section length (304) which is between 5 and 75 millimeters,preferably between 10 and 40 millimeters.

5. A lighting system (100) for a two-wheeled vehicle (1) according to one of the preceding claims, wherein the first and / or second lighting device (110, 120) comprises lighting means (600), preferably comprising: a front light (610) configured to generate a front light beam (130) directed forward from the two-wheeled vehicle (1) in the mounted state, the front light beam preferably having an aperture angle between 30 and 160 degrees, and / or a rear light (620) configured to generate a rear light beam (140) directed rearward from the two-wheeled vehicle (1) in the mounted state, the rear light beam preferably having an aperture angle between 15 and 80 degrees, and / or a ground light (630) configured to generate a ground light beam (150) directed downward from the two-wheeled vehicle (1) in the mounted state,wherein the ground light beam preferably has a longitudinal opening angle between 20 and 130 degrees and / or a transverse opening angle of less than 30 degrees, wherein the front light of the first lighting device is in particular designed to, to generate a first front light beam which, together with a second front light beam of the preferably included second lighting device, forms an overall front light beam.

6. Lighting system (100) for a two-wheeled vehicle (1) according to one of the preceding claims, wherein the first and / or second lighting device (110, 120) comprises an inner housing (250) with an inner housing sleeve (260) and optionally an inner housing flange (270) connected thereto, wherein the inner housing sleeve (260) forms in particular the inner section (200) of the lighting device (110, 120), and / or wherein the first and / or second lighting device (110, 120) comprises an outer housing (350) with an outer housing shell (360) with one or more lamp recesses (370) and an outer housing end face (380), wherein the outer housing (350) and optionally the inner housing flange (270) form in particular the outer section (300) of the lighting device (110, 120), and / or wherein the lighting means (600) comprise one or more light sources (650, 660, 670) each with an optionally associated light shaper (654, ​​664, 674),which are preferably applied to a printed circuit board (430), which is preferably arranged on the inner housing flange (270), wherein the one or more light sources (650, 660, 670), each with an optionally assigned light shaper (654, ​​664, 674), in particular form one or more lights (610, 620, 630) of the lighting means (600), and / or wherein the first and / or second lighting device (110, 120) comprises a transparent, in particular one-piece, intermediate housing (450), which is arranged between the inner housing (250) and the outer housing (350), wherein the intermediate housing (450) in particular forms one or more light covers (656, 666, 676), which cover the one or more light sources (650, 660, 670), each with an optionally assigned light shaper (654, 664, 674) and engages in the one or more lamp recesses (370) of the outer housing shell (360),and / or wherein the first and / or second lighting device (110, 120) comprises a sealing ring (480) which is arranged between the inner housing (250) and the outer housing (350) and / or the intermediate housing (450).

7. Lighting system (100) for a two-wheeled vehicle (1) according to one of the preceding claims, wherein the lighting means (600) of the first and / or second lighting device (110, 120) comprise: a first light source (650) forming the front light (610) with an associated first light shaper (654), wherein the first light source (650) is designed as a light-emitting diode having an axial radiation direction, and the light shaper (654) is designed as a reflector which deflects the axial radiation direction into a radial radiation direction, and / or a second light source (660) forming the rear light (620) with an associated second light shaper (664), wherein the second light source (660) is designed as a light-emitting diode having an axial radiation direction and the light former (664) is designed as a reflector which deflects the axial radiation direction into a radial radiation direction, and / or a third light source (670) forming the floor lamp (630) with an associated third light former (674), wherein the third light source (670) is designed as a laser diode which has a radially bundled radiation, and the light former is designed as a line former which fans out the radially bundled radiation in the longitudinal direction, wherein the line former is preferably rotated at a correction angle (cp) about the radial direction in such a way that the longitudinal direction of the fanning out runs obliquely at the correction angle (cp) with respect to a plane which extends orthogonally to the axial direction, and wherein the correction angle is preferably between 3 and 15 degrees.

8. Lighting system (100) for a two-wheeled vehicle (1) according to one of the preceding claims, wherein the first and / or second lighting device (110, 120) has a charging unit (700), wherein the charging unit (700) preferably comprises a charging connection (710), in particular for connecting a charging device, wherein the charging connection (710) is preferably contacted on the or a printed circuit board (430), which is preferably arranged on the inner housing flange (270) of the inner housing (250), and wherein optionally one or the outer housing (350) has a charging connection recess (382) for the charging connection (710), wherein the charging connection recess (382) is preferably located in the outer housing end face (380), and wherein optionally one or the intermediate housing (450), which is arranged between the inner housing (250) and the outer housing (350), has a charging connection opening (452) for the charging connection (710),wherein the charging connection opening (452) preferably extends axially through the intermediate housing (450), and wherein the first and / or second lighting device (110, 120) optionally comprises a cover cap (390) for covering the charging connection recess (382) in the outer housing (350), and / or wherein the charging unit (700) optionally comprises a coil for inductive charging and / or magnets for adhering a charging device.

9. Lighting system (100) for a two-wheeled vehicle (1) according to one of the preceding claims, wherein the first and / or second lighting device (110, 120) comprises a switching unit (800) for switching the lighting means (600), in particular the lights (610, 620, 630) of the lighting means (600), wherein the switching unit (800) preferably comprises a switch (810), in particular designed as a push-button, wherein the switch (810) is preferably contacted on the or a printed circuit board (430), which is preferably arranged on the inner housing flange (270) of the inner housing (250), and wherein the switching unit (800) preferably comprises an actuating element (820) which is connected to the switch (810) and can be actuated by a user in order to switch the switch (810), wherein optionally one or the outer housing (350) has an actuating element recess (384) for the Actuating element (820) and optionally one or the intermediate housing (450), which is arranged between the inner housing (250) and the outer housing (350), has an actuating element opening (454) for the actuating element (820), and wherein the switching unit (800) is designed as a casing-side switching unit (800), such that the actuating element (820) is arranged on the outer housing casing (360) and the actuating element recess (384) is preferably located in the outer housing casing (360) and the actuating element opening (454) preferably runs radially through the intermediate housing (450) and / or wherein the switching unit (800) is designed as a front-side switching unit (800), such thatthat the actuating element (820) is arranged on the outer housing end face (380) and the actuating element recess (384) is preferably located in the outer housing end face (380) and the actuating element opening (454) preferably extends axially through the intermediate housing (450)., 10. Lighting system (100) for a two-wheeled vehicle (1) according to one of the preceding claims, wherein the first lighting device (110) comprises a first energy storage device (750) which is configured to operate the lighting means (600) of the first lighting device (110), and wherein the first lighting device (110) comprises a switching unit (800), in particular according to claim 9, which is configured to switch the lighting means (600) of the first lighting device (110), and wherein it is preferably provided that: the first energy storage device (750) is designed as a rechargeable first energy storage device (750), and the first lighting device (110) has a charging unit (700), in particular according to claim 8, to charge the rechargeable first energy storage device (750), and the switching unit (800) is designed in particular as a casing-side switching unit, and, if a second lighting device is included,the second lighting device (120) comprises a second energy storage device (760) which is configured to operate the lighting means (600) of the second lighting device (120), and wherein the second lighting device (110) comprises a switching unit (800), in particular according to claim 9, which is configured to switch the lighting means (600) of the second lighting device (120), and wherein it is preferably provided that: the second energy storage device (760) is designed as a rechargeable second energy storage device (760), and the second lighting device (110) has a charging unit (700), in particular according to claim 8, for charging the rechargeable second energy storage device (760), and the switching unit (800) is designed in particular as a casing-side switching unit, and wherein the second lighting device (120) is preferably designed identically or mirror-symmetrically to the first lighting device (110).

11. Lighting system (100) for a two-wheeled vehicle (1), in particular according to one of the preceding claims, comprising a first lighting device (110) and a second lighting device (120), wherein the two lighting devices (110, 120) are designed for mounting on opposite sides one or the tubular handlebar (14), and comprising means for connecting (900) the first lighting device (110) to the second lighting device (120), wherein the means for connecting (900) are designed in particular to carry signals and / or currents, and wherein the first and / or second lighting device (110, 120) optionally comprises a contact connection (850) for making contact, in particular in a detachable manner, with the means for connecting (900), wherein the contact connection (850) is preferably arranged on the or an inner section (200) and / or on the or an inner housing (250) of the first and / or second lighting device (110, 120), particularly preferably on an axial end which is opposite the or an outer housing (350).

12. Lighting system (100) for a two-wheeled vehicle (1) according to one of the preceding claims, wherein the lighting system (100) comprises an energy storage system configured to operate the lighting means (600) of the first lighting device (110) and to operate the lighting means (600) of the second lighting device (120), and wherein the energy storage system comprises one or more of the following energy storage devices: a first energy storage device (750) arranged in the first lighting device (110), a second energy storage device (760) arranged in the second lighting device (120), an external energy storage device (770) arranged outside the first and second lighting devices (110, 120), in particular arranged in an additional module (950), and wherein the lighting system (100) preferably comprises a switching unit (800), in particular according to claim 9,which is configured to switch the lighting means (600) of the first lighting device (110) and to switch the lighting means (600) of the second lighting device (120) by transmitting switching signals via the connection means (900), and wherein it is preferably provided that: the energy storage device(s) (750, 760, 770) of the energy storage system are designed as rechargeable energy storage devices, and the first lighting device (110) has a charging unit (700), in particular according to claim 8, for charging the rechargeable energy storage devices by transmitting charging currents via the connection means (900), and the switching unit (800) is designed in particular as a front-side switching unit on the second lighting device (120).

13. Lighting system (100) for a two-wheeled vehicle (1) according to one of the preceding claims, wherein the means for connection (900) comprise one or more of the following connections: a direct connection (910) running from the first lighting device (110) to the second lighting device (120), an indirect connection (920) running from the first lighting device (110) to an additional module (950), an indirect connection (922) running from the second lighting device (110) to an additional module (950), an indirect connection (924) which runs from a direct connection (910) to an additional module (950), wherein the direct connection (910) preferably runs through the interior of the tubular handlebar (14), and wherein the indirect connection (920, 922, 924) preferably runs through the interior of the tubular handlebar (14), preferably runs through the interior of the frame (2), optionally runs through the interior of the stem (12), optionally runs through the interior of the front wheel fork (6), in particular through the interior of the fork shaft.

14. Lighting system (100) for a two-wheeled vehicle (1) according to one of the preceding claims, wherein the first and / or second lighting device (110, 120) is formed in two parts with a base unit (160) which can be fastened to the tubular handlebar (14), and a light head (170) which can be fastened to the base unit (160), wherein the first and / or second lighting device (110, 120) preferably comprises a mechanical fastening system (180) for the releasable mechanical fastening of the light head (170) to the base unit (160), in particular fastening means (182) cooperating with one another on the base unit (160) and on the light head (170), e.g.for fastening by screwing, plugging, plugging-and-rotating movement and / or magnetic force, wherein the first and / or second lighting device (110, 120) preferably comprises an electrical connection system (190) for the detachable electrical connection of the lighting head (170) to the base unit (160), in particular electrical contact means (192) on the base unit (160) and on the lighting head (170) which can be contacted with one another and which establish the electrical connection in particular when the lighting head (170) is fastened to the base unit (160).

15. Lighting system (100) for a two-wheeled vehicle (1) according to one of the preceding claims, wherein the light head (170) of the first and / or second lighting device (110, 120) is designed such that, when attached to the base unit (160), it is arranged on the respective side of the opposite sides of the tubular handlebar (14), in particular protrudes axially beyond the respective front end (16, 18) of the tubular handlebar (14), and optionally forms the or a part of the outer section (300), optionally comprises the or a part of the outer housing (350), and / or wherein the light head (170) of the first and / or second lighting device (110, 120) comprises the lighting means (600), and / or wherein the light head (170) of the first and / or second lighting device (110, 120) comprises the transparent intermediate housing (450).

16. Lighting system (100) for a two-wheeled vehicle (1) according to one of the preceding claims, wherein the base unit (160) of the first and / or second lighting device (110, 120) is designed such that, when attached to the tubular handlebar (14), it can be completely or is arranged partially inside the tubular handlebar (14), in particular is axially insertable into the interior of the tubular handlebar, and optionally forms the or a part of the inner section (200), optionally comprises the or a part of the inner housing (250), and / or wherein the first and / or second lighting device (110, 120) each comprise an energy storage device (750, 760), in particular the first lighting device (110) comprises one or the first energy storage device (750) and the second lighting device (120) comprises one or the second energy storage device (760), wherein the energy storage device(s) (750, 760) are configured in particular for operating the lighting means (600) of the first and / or second lighting device (110), wherein the energy storage device (750, 760) is arranged in the base unit (160) of the first and / or second lighting device (110, 120) is,in particular the first energy storage device (750) is arranged in the base unit (160) of the first lighting device (110) and the second energy storage device (760) is arranged in the base unit (160) of the second lighting device (120), and / or wherein the lighting system (100) comprises means for connecting (900) the first lighting device (110) to the preferably included second lighting device (120), wherein the means for connecting (900) are designed in particular to be signal-carrying and / or current-carrying, wherein the means for connecting (900) are preferably designed to connect the base unit (160) of the first lighting device to the preferably included second lighting device (120), in particular to the base unit (160) of the preferably included second lighting device, and / or wherein the first and / or second lighting device (110,120) comprises a contact terminal (850) for contacting the means for connection (900), wherein the contact terminal (850) is preferably arranged on the base unit (160).

17. Lighting system (100) for a two-wheeled vehicle (1) according to one of the preceding claims, wherein the energy storage device (750, 760) of the first and / or second lighting device is designed as a rechargeable energy storage device and wherein the lighting system (100) comprises a common charging unit which is configured for the common charging of the energy storage devices (750, 760) of the first and / or second lighting device, in particular for the common charging of the first energy storage device (750) of the first lighting device (110) and the second energy storage device (760) of the preferably included second lighting device (120), in particular by transmitting charging currents via the means for connection (900), wherein the common charging unit preferably comprises a charging connection, in particular for coupling a charging device, preferably for plugging in a charging device,wherein the common charging unit is preferably arranged in the first or second lighting device (110, 120) or is arranged outside the first and second lighting device (110, 120), for example on the handlebar (14), on the stem (12), on the front wheel fork (6) or on the frame (2) of the two-wheeled vehicle (1), wherein the common charging unit is preferably designed to provide energy for further devices which can be mounted on the two-wheeled vehicle (1), for example, wherein the common charging unit preferably has a supply connection for providing energy for further devices or wherein the charging connection is also designed to provide energy for further devices.

18. Handlebar unit (10) for a two-wheeled vehicle (1), in particular a bicycle or electric bicycle, wherein the handlebar unit (10) comprises: a tubular handlebar bracket (14) and optionally a stem (12) connected thereto, e.g. clamp-screwed thereto or formed integrally therewith, and a mounted lighting system (100) according to one of the preceding claims.

19. Two-wheeled vehicle (1), in particular a bicycle or electric bicycle, comprising: a frame (2) with a head tube (4) and a front wheel fork (6) rotatably mounted in the head tube (4), which is connected to a tubular handlebar (14) via a stem (12), and a handlebar unit (10) and / or a mounted lighting system (100) according to one of the preceding claims.

20. A set comprising a first and a second base unit (160), in particular for a lighting system (100) according to one of the preceding claims, for a two-wheeled vehicle (1), wherein the two base units (160) are designed for mounting on opposite sides of the tubular handlebar (14), wherein the two base units (160) are configured such that, in the mounted state, they are arranged entirely or partially within the interior of the tubular handlebar (14), wherein the first base unit (160) is preferably insertable axially into the interior of the tubular handlebar (14) at a first end face (16) of the tubular handlebar (14), wherein the second base unit (160) is preferably insertable axially into the interior of the tubular handlebar (14) at a second end face (18) of the tubular handlebar (14),wherein the first base unit (160) comprises a first energy storage device (750) and the second base unit (160) comprises a second energy storage device (760), wherein the energy storage devices (750, 760) are designed to operate the lighting system (100) and / or to provide energy for further devices which can be mounted, for example, on the two-wheeled vehicle (1), wherein means for connecting (900) the first base unit (160) to the second base unit (160) are included, wherein the means for connecting (900) are designed in particular to be signal-conducting and / or current-conducting, wherein the two base units (160) preferably comprise a contact connection (850) for, in particular detachably, contacting the means for connecting (900).

21. Set comprising a first and a second base unit (160) according to the preceding claim, wherein the energy storage devices (750, 760) of the first and second base units (160) are designed as rechargeable energy storage devices andwherein a common charging unit is included, which is configured for the joint charging of the energy storage devices (750, 760) of the first and second base units (160), in particular by transmitting charging currents via the means for connection (900), wherein the common charging unit preferably comprises a charging connection, in particular for coupling a charging device, preferably for plugging in a charging device, wherein the common charging unit is preferably arranged in the first or second base unit (160) or arranged outside the first and second base units (160), for example on the handlebar (14), on the stem (12), on the front wheel fork (6) or on the frame (2) of the two-wheeled vehicle (1), wherein the common charging unit is preferably designed to provide energy for further devices, which e.g.can be mounted on the two-wheeled vehicle (1), wherein the common charging unit preferably has a supply connection for providing energy for further devices or wherein the charging connection is also designed to provide energy for further devices.

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