Bicycle valve, bicycle inner tube, bicycle wheel and method for assembling a bicycle wheel

Abstract

The invention relates to a bicycle valve (15) comprising a valve stem (16) having a through-hole (21), and a quick-connect fitting (22) plugged onto the valve stem (16). The invention further relates to a bicycle inner tube (11), to a bicycle wheel (10), to a method for assembling a bicycle wheel (10), as well as to a use of a quick-connect fitting (22) as a valve and / or as a rim nut on a valve stem (16) of a bicycle inner tube (11).

Description

Bicycle valve, bicycle inner tube, bicycle wheel and method for assembling a bicycle wheel

[0001] The invention relates to a bicycle valve, a bicycle inner tube, a bicycle wheel, a method for assembling a bicycle wheel, and the use of a quick-release connector as a valve and / or as a rim nut on a valve stem of a bicycle inner tube.

[0002] Besides the widely used butyl and latex bicycle inner tubes, inner tubes made of thermoplastic materials, especially thermoplastic polyurethane (TPU), are becoming increasingly common. Furthermore, tubeless tires for bicycles, so-called tubeless systems, also exist.

[0003] Bicycle inner tubes are generally equipped with valves for inflation. In tubeless systems, the valves are directly connected to the rims, allowing the tire to be inflated. Schrader, Presta, or Dunlop valves are commonly used.

[0004] Problems with state-of-the-art bicycle valves include the fact that inflation with air takes a long time due to the small opening cross-section. The small opening cross-section also leads to disadvantages when applying puncture sealant, as special products must be used and / or correct inflation is difficult. For example, the opening cross-section can become clogged.

[0005] Furthermore, problems arise with smooth valve stems, especially with TPU bicycle inner tubes. Smooth valve stems are found, for example, on valve stems made of plastic such as thermoplastic polyurethane (TPU) or on coated valve stems. Disadvantages include the inability to use rim nuts, which impairs valve positioning. Additionally, the use of rim magnets is generally not possible. Finally, attaching pump heads to smooth valve stems is also problematic.

[0006] Generally, difficulties arise in fixing pump heads and sealing between the pump head and the valve, which leads to problems when filling bicycle wheels.

[0007] The object of the invention is to improve the air inflation of bicycle wheels, in particular to improve bicycle valves.

[0008] The problem is solved according to the invention by a bicycle valve according to claim 1, a bicycle inner tube according to claim 19, a bicycle wheel according to claim 20, a method for assembling a bicycle wheel according to claim 24, and the use of a quick-connect fitting as a valve and / or as a rim nut on a valve stem of a bicycle inner tube according to claim 23.

[0009] The bicycle valve according to the invention is, in particular, a bicycle valve for an inner tube or for a tubeless system. The bicycle valve has a valve stem. A through-hole for filling the wheel, especially the inner tube, with air extends through the valve stem. Preferably, the through-hole extends from an air inlet opening of the valve stem into the inner tube, in particular into the inner tube of the bicycle tube, or, in the case of a tubeless system, into the space between the tire and preferably opens there. Furthermore, the bicycle valve has a quick-connect fitting attached to the valve stem.

[0010] The quick-connect fitting can be, for example, a so-called "push-in fitting" or a "plug-in screw connection". The quick-connect fitting is preferably designed as described in DE10162658A1, preferably according to one of the claims from DE10162658A1, wherein the quick-connect fitting is in particular the connector described therein.

[0011] It is preferred, particularly as an alternative to the push-in fitting design of the quick-connect fitting, that the connection between the valve stem and the quick-connect fitting is designed as a quick-release coupling, especially preferably as a pneumatic quick-release coupling. The quick-release coupling is, in particular, a positive-locking and preferably friction-locking coupling connection, which is especially preferably detachable. The quick-release coupling is designed, in particular, to provide a gas-tight coupling connection between the valve stem and the quick-connect fitting.

[0012] The quick-connect fitting is attached to the outside of the valve stem. Preferably, the quick-connect fitting accommodates the valve stem, especially completely.

[0013] It is preferred that the quick-connect fitting is fixed to the outside of the valve stem, particularly in a loss-proof manner, and / or seals against the outside of the valve stem. Preferably, the quick-connect fitting has a socket that is attached to the outside of the valve stem and, in particular, pushed onto it. The quick-connect fitting, especially the socket, preferably has a through-opening for air to pass through the quick-connect fitting. In the attached state, the through-opening is connected to the through-hole, in particular in an air-conducting manner. The through-opening opens into the through-hole. The through-opening and / or the through-hole are preferably round. Preferably, the through-opening has a larger diameter than the through-hole. The valve stem is inserted into the through-opening, preferably partially or completely.The quick-connect connector is, in particular, an adapter, preferably for connecting one or more components, such as a pump, a puncture protection filling device, and / or a pressure sensor. The quick-connect connector is, in particular, hollow. Preferably, the quick-connect connector has an aerodynamic shape, especially on its exterior. The quick-connect connector can, in particular, have a streamlined shape, such as a teardrop shape, an elliptical shape, or a spindle shape. The connector preferably has a base body, in particular a housing. The base body can preferably be made of or consist of zinc or plastic. In particular, the base body can be a zinc die-cast element or an injection-molded element.Preferably, the invention further relates to a bicycle valve adapter which has a quick-connect fitting that can be attached to a valve stem and has one or more features of the quick-connect fitting of the bicycle valve according to the invention.

[0014] It is preferred that the valve stem is an empty hollow stem. In particular, the valve stem is a hollow cylinder, preferably round. The valve stem is preferably unfilled. It is preferred that the through-hole of the valve stem is completely exposed from the air inlet opening to the hose body. In particular, the through-hole is free of inserts, preferably valve inserts, so that the through-hole has no insert, preferably no valve insert. The through-hole preferably has no steps. In particular, the through-hole is valve-free, i.e., it has no valve arranged therein. The valve stem is preferably formed internally and / or externally in a continuous cylindrical shape, which can be completely uniform.Preferably, the inner and / or outer diameter of the valve stem remains constant over a large part, preferably over its entire length, particularly without variations and / or interruptions. The valve stem is preferably tubular in shape, preferably exclusively tubular. Preferably, the valve stem comprises or consists of a tube, e.g., a polyurethane tube. The tube can be, for example, rigid or flexible. The valve stem is preferably made of polymer, particularly with a medium or high Shore hardness. The minimum opening cross-section of the through-hole is at least 70%, preferably at least 80%, particularly preferably at least 90%, and even more preferably at least 95% of the maximum opening cross-section of the through-hole. It is also possible, in particular, for the minimum opening cross-section to be at least 99% or at least 100% of the maximum opening cross-section. Regarding the minimum orThe maximum opening cross-section refers in particular to the opening cross-section of the through-hole at the point where the through-hole has the smallest or largest opening cross-section for the passage of air.

[0015] It is preferred that the valve stem be made of metal, such as aluminum and / or brass, or plastic. If the valve stem is made of metal, it may, for example, be coated, e.g., anodized. If the valve stem is made of plastic, it may, for example, be made of polyamide (PA), thermoplastic polyurethane (TPU), polyoxymethylene (POM), and / or polycarbonate (PC). The plastic may, in particular, be reinforced, e.g., fiber-reinforced, or unreinforced. It is preferred that the quick-connect fitting has a self-locking mechanism that secures the quick-connect fitting to the valve stem in the opposite direction to the insertion of the quick-connect fitting. The self-locking mechanism is, for example, a pawl mechanism.

[0016] It is preferred, particularly in the push-in fitting embodiment of the quick-connect fitting, that the quick-connect fitting has a spring-elastic retaining element, preferably a spring-elastic retaining ring, especially with claws. The claws are preferably inclined and radially inwardly projecting, and are connected to the retaining ring, particularly integrally. The self-locking mechanism includes or consists of the retaining ring. The retaining ring is located, in particular, on the outside of the valve stem. It is preferred that the quick-connect fitting is fixed to the valve stem by means of the spring-elastic retaining element, in particular the claws, by a positive locking and / or frictional locking mechanism. In the preferred embodiment in which the valve stem is made of plastic, in particular consisting of plastic, it is preferred that the spring-elastic retaining element engages with the valve stem by frictional locking. For example,The spring-elastic retaining element, in particular the claws, can engage with the valve stem, preferably penetrating it. It is preferably possible that the spring-elastic retaining element, in particular the claws, deforms the valve stem locally, reversibly or irreversibly, when engaging.

[0017] It is preferred, particularly when the connection between the valve stem and the quick-connect fitting is designed as a quick-release coupling, that the valve stem has a plug nipple, preferably integrally formed with it, e.g., a pneumatic plug nipple, preferably for a coupling sleeve to implement the quick-release coupling, particularly preferably a pneumatic quick-release coupling. The plug nipple is, in particular, a coupling plug. Preferably, the plug nipple forms the valve stem. The plug nipple is designed, in particular, to receive the quick-connect fitting from the outside. The plug nipple is, in particular, cylindrical or conical. Particularly preferably, the plug nipple has a conical shape, at least at its free end, to simplify the insertion of the quick-connect fitting.

[0018] It is preferred, particularly when the plug connection between the valve stem and the quick-connect fitting is designed as a quick coupling, that the valve stem, and preferably the plug nipple, has a retaining structure, in particular a groove and / or a bead, for positively and, in particular, force-fit fixing of the quick-connect fitting onto the valve stem, preferably the plug nipple. The retaining structure is preferably integral with the valve stem, which is made of metal or plastic. Preferably, the retaining structure, e.g., the groove and / or the bead, is circumferential, preferably completely circumferential, in particular around the valve stem. The groove can, in particular, be a groove, preferably a circular groove.

[0019] It is preferred, particularly in the design of the quick-connect fitting as a push-in fitting, that the spring-elastic retaining element, in particular the claws, couples positively and especially force-fit with the retaining structure, which preferably has a groove, so that the quick-connect fitting is thus fixed on the valve stem, which is in particular made of metal.

[0020] It is preferred, particularly when the plug connection between the valve stem and the quick-connect fitting is designed as a quick-release coupling, that the quick-connect fitting has a coupling sleeve for positive locking and, in particular, force-locking fixation of the quick-connect fitting onto the valve stem, especially preferably onto the plug nipple. The coupling sleeve is, in particular, a coupling socket.

[0021] It is preferred, particularly when the plug connection between the valve stem and the quick-connect fitting is designed as a quick coupling, that the coupling sleeve has a locking device, in particular comprising at least one locking ball and / or a locking pawl, for fixing the coupling sleeve to the valve stem, most preferably to the plug nipple. The locking device is designed to lock with the retaining structure of the plug nipple. Preferably, the coupling sleeve has a preloading device, in particular a spring, for spring-loaded fixing of the coupling sleeve to the valve stem, most preferably to the plug nipple. The locking device particularly forms the self-locking mechanism.

[0022] The coupling sleeve and valve stem, in particular the coupling sleeve and plug nipple, together preferably form a quick coupling, especially preferably a compressed air quick coupling.

[0023] It is preferred that the quick-connect fitting has a release element, in particular an axially movable one, for releasing the connection of the quick-connect fitting with the valve stem.

[0024] It is preferred that the quick connector has a locking element, in particular a locking clip, for locking the release element.

[0025] It is preferred that the bicycle valve further comprises a cover element, preferably an elastic one, for covering the quick-release connector. The cover element is, for example, an elastomer. The cover element is preferably designed to axially and / or radially, at least partially or completely, enclose the quick-release connector. Preferably, the cover element seals the quick-release connector, particularly its interior, against dirt, dust, and / or water. The cover element is particularly designed as an intermediate element for sealing and / or damping the connection between the quick-release connector and the rim, wherein the cover element is arranged, particularly axially, between the quick-release connector and the rim. Preferably, the cover element includes a locking clip.

[0026] In a preferred embodiment, the valve stem is made of or consists of plastic, e.g., thermoplastic plastic. It is preferred that the valve stem is made of or consists of polyurethane; in particular, thermoplastic polyurethane (TPU). The outer surface, preferably the entire outer surface, of the valve stem is particularly smooth. Preferably, the outer surface of the valve stem, preferably the entire outer surface, consists of polyurethane, in particular TPU.

[0027] It is preferred that the quick-connect fitting has a seal for sealing between the quick-connect fitting and the valve stem. Preferably, the seal rests against the outside of the valve stem and / or against the inside of the through-opening of the quick-connect fitting and preferably seals between them.

[0028] It is preferred that the seal is a sealing ring, in particular an O-ring. The seal is in particular a radial seal. Preferably, the seal comprises a sealing ring. Preferably, the coupling sleeve and / or the plug nipple incorporates the seal.

[0029] It is preferred that the quick-connect fitting seals the valve stem, in particular an air inlet opening of the valve stem, airtight. In particular, the quick-connect fitting seals the valve stem selectively, e.g. by means of a valve.

[0030] It is preferred that the quick connector has at least one or at least two connections.

[0031] It is preferred that the at least one connection has an internal and / or external thread. The at least one connection can, for example, be designed as a valve seat, particularly with a thread, preferably for a valve insert such as a Schrader valve insert, a Presta valve insert, and / or a Dunlop valve insert. Preferably, the quick-connect fitting is angled, for example, at a right angle, preferably to the rim. The connection and / or the through-hole preferably angles, for example, at a right angle. The quick-connect fitting is preferably rotatable on the valve stem.

[0032] It is preferred that at least one of the connections has a Schrader valve pump connection, a Presta valve pump connection, and / or a Dunlop valve pump connection. Preferably, at least one of the connections has a slip-optimized outer surface, e.g., grooves, to prevent slippage for a pump. In particular, at least one of the connections is a puncture protection connection.

[0033] It is preferred that the quick-connect fitting has a valve, in particular a check valve. The check valve is designed to allow airflow only in the direction of the hose body. The check valve is in particular a one-way valve that allows airflow in only one direction. Optionally, the check valve can have a spring and / or a locking element, such as a ball or a disc. It is particularly possible that at least one, several, or all of the connections have a valve, in particular a check valve. The bicycle valve according to the invention preferably has the valve; however, it is alternatively also possible, for example, that the valve function of the bicycle valve is performed by the valve stem, wherein the valve stem, by virtue of its design with a through-hole, influences the airflow in one or both directions and thus implements the valve function.Consequently, the bicycle valve optionally has a valve.

[0034] It is preferred that the opening cross-section of the valve be at least 70%, preferably at least 80%, particularly preferably at least 90%, and even more preferably at least 95% of the, preferably maximum, cross-section of the through-hole. It is also possible, in particular, that the opening cross-section of the valve be at least 99% or at least 100% of the cross-section of the through-hole. The opening cross-section of the valve is, in particular, the opening cross-section in the maximum open position of the valve. Standard valves in bicycle inner tubes are inserted into the valve stem, resulting in a maximum opening cross-section, in particular significantly, below 70% of the cross-section of the through-hole of the valve stem. It is therefore particularly advantageous according to the invention that faster inflation is possible.

[0035] It is preferred that the quick connector has a pressure sensor, particularly at one of the terminals.

[0036] It is preferred that the quick-release connector has a stop for the valve stem or that the quick-release connector allows the valve stem to pass through completely. In the case of a quick-release connector with a stop, the through-opening is specifically limited by a stop, so that when the valve stem is inserted into the through-opening, it abuts the stop. Alternatively, it is possible for the through-opening to extend completely through the quick-release connector, particularly with a constant cross-section. In this alternative embodiment, the quick-release connector can, for example, be designed as a clamping ring, so that the quick-release connector advantageously fulfills the function of a wheel nut.

[0037] It is preferred that the valve stem has a valve base for connection to the bicycle inner tube. The valve base is particularly integrally connected to the valve stem's push-fit nipple, e.g., as a single piece.

[0038] It is preferred, particularly in the embodiment in which the valve stem is made of or consists of plastic, that the valve stem, preferably at least the plug nipple of the valve stem, is manufactured by injection molding or extrusion. It is possible, particularly preferably in the embodiment in which the valve stem, preferably at least the plug nipple of the valve stem, is manufactured by extrusion, that the valve base is injection molded onto the valve stem, particularly by injection molding. The valve stem, preferably at least the plug nipple of the valve stem, is particularly burr-free, thus having in particular no burr, preferably no longitudinal burr, and most preferably no injection molding burr.

[0039] The bicycle inner tube according to the invention comprises a tube body, in particular made of TPU. A valve according to the invention is connected to the tube body. The bicycle valve, in particular the valve stem, is connected to the tube body in a gas-carrying and airtight manner, so that the tube body can be filled with air through the valve. Preferably, the bicycle valve, in particular the valve stem, is bonded to the tube body by means of a material bond, e.g., glued, sealed, welded, or formed in one piece. In a preferred embodiment, the tube body comprises or consists of plastic, e.g., thermoplastic plastic. Preferably, the tube body comprises or consists of polyurethane; in particular thermoplastic polyurethane, TPU.

[0040] The bicycle wheel according to the invention has a rim. Furthermore, particularly in an embodiment as a bicycle inner tube wheel, the wheel has a bicycle inner tube according to the invention mounted on the rim, preferably between the rim and a tire of the wheel. Here, the valve stem of the bicycle inner tube is guided through the valve hole of the rim. Alternatively, particularly in an embodiment as a bicycle tubeless wheel, the wheel has a bicycle valve according to the invention connected to the rim, preferably gas-tight. In this case, it is particularly advantageous that the bicycle valve allows air to be injected into a tire of the wheel that is mounted directly on the rim in a gas-tight manner.

[0041] It is preferred that the quick-release connector largely, and in particular substantially completely, covers the clear height of the valve stem. The clear height of the valve stem refers in particular to the exposed surface of the valve stem above the rim. Preferably, the quick-release connector rests against the rim, and in particular, touches it.

[0042] It is preferred that the bicycle wheel has a rim magnet between the quick-release connector and the rim. The rim magnet is preferably held between the quick-release connector and the rim in a way that prevents slippage, e.g., by clamping. For example, the quick-release connector clamps the rim magnet against the rim.

[0043] The invention further comprises the use of a quick-release connector as a valve and / or as a rim nut on a valve stem of a bicycle inner tube, in particular a bicycle inner tube according to the invention, or on a valve stem of a tubeless wheel. The quick-release connector and / or the valve stem particularly comprises one or more features of the quick-release connector and / or the valve stem of the bicycle valve according to the invention.

[0044] The invention further comprises a method for assembling a bicycle wheel comprising a rim with a valve stem arranged thereon. The wheel is in particular a bicycle inner tube wheel, wherein the valve stem is arranged on the rim such that the valve stem is inserted through a hole in the rim, or it is in particular a tubeless wheel, wherein the valve stem is gas-tightly connected to the rim. The method comprises at least the assembly of a part of the bicycle wheel, and the method need not include all assembly steps of the bicycle wheel. The method includes the step of externally attaching a valve to the valve stem, in particular for pressure-tight sealing of the valve stem.The quick-connect fitting, the valve and / or the valve stem particularly features one or more characteristics of the quick-connect fitting, the valve and / or the valve stem of the bicycle valve according to the invention. In particular, the valve is fixed to the valve stem when it is attached.

[0045] It is preferred that the step of attaching the valve is carried out by attaching a quick-connect fitting having the valve.

[0046] It is preferred that when the valve is attached, the valve, in particular the quick-release connector, is brought into contact with the rim. Specifically, the quick-release connector is pushed on far enough that it comes into contact with the rim, for example, by abutting it. It is particularly possible that the quick-release connector is brought into contact with the rim via an intermediate element, preferably a sealing and / or damping element, wherein the intermediate element is arranged, in particular axially, between the quick-release connector and the rim.

[0047] It is preferred that the method includes the further step of attaching a rim magnet to the valve stem before attaching the valve to the valve stem. For example, attaching the valve or the quick-release connector to the valve stem secures the rim magnet between the rim and the valve or quick-release connector, preferably by a locking mechanism to prevent slippage, e.g., by clamping.

[0048] It is preferred that the method, which is in particular a method for fitting a bicycle inner tube according to the invention, includes, prior to fitting the valve, the step of passing the valve stem through a valve hole in the rim. The valve stem is in particular connected to a bicycle inner tube, preferably to the inner tube body of the bicycle inner tube. Preferably, the bicycle inner tube is a bicycle inner tube according to the invention.

[0049] It is preferred that the method includes the step of shortening, in particular cutting, the valve stem before the valve is fitted and, in particular, after the valve stem has been passed through the valve hole of the rim. The shortening is carried out in such a way that the remaining height of the valve stem after shortening can be covered by the valve, in particular the quick-release connector, e.g., accommodated within the quick-release connector.

[0050] It is preferred that one or more articles according to the invention, i.e. the bicycle valve, the bicycle inner tube, the bicycle wheel, the method for mounting a bicycle wheel, as well as the use of a quick-release connector as a valve and / or as a rim nut on a valve stem of a bicycle inner tube, each have one or more features of the other articles according to the invention.

[0051] The invention will now be explained in more detail with reference to preferred embodiments and the accompanying drawings.

[0052] They show: Fig. 1 shows a schematic sectional view of part of an embodiment of a bicycle wheel according to the invention with part of an embodiment of a bicycle inner tube according to the invention with an embodiment of a bicycle valve according to the invention. Figs. 2-4 schematic representations of further embodiments of the bicycle valves according to the invention, Fig. 5 shows a schematic sectional view of part of a further embodiment of a bicycle wheel according to the invention with part of a further embodiment of a bicycle inner tube according to the invention with a further embodiment of a bicycle valve according to the invention, and Fig. 6 shows a schematic sectional view of part of a further embodiment of a bicycle inner tube according to the invention with a further embodiment of a bicycle valve according to the invention.

[0053] Figure 1 shows part of an embodiment of a bicycle wheel 10 according to the invention (only partially shown) with a rim 12, through whose rim hole 13 a valve stem 16 of an embodiment of a bicycle inner tube 11 according to the invention (only partially shown) is inserted.

[0054] The bicycle inner tube 11 has an inflatable tube body 14, with the inside 17 of which the foot 18 of the valve stem 16 is connected gas-tight to the tube body 14.

[0055] The valve stem 16 projects through the rim hole 13 with a tubular section 20 (shown with a partial cutout). This section 20 corresponds in particular to a tube, preferably a polyurethane tube. The valve stem 16 has a through-hole 21 that extends from an air inlet opening 37 into the interior of the tube body 14. The through-hole 21 is in particular empty and has a constant cross-section. Thus, unimpeded, in particular unrestricted, air inflation of the tube body 14 is possible through the through-hole 21.

[0056] A quick-connect fitting 22 with a socket-shaped base body 24 is attached to the tubular section 20 of the valve stem 16, the tubular section 20 being inserted into a through-opening 25 extending through the quick-connect fitting 22 up to a stop 36. The valve stem, in particular the tubular section 20, is preferably smooth on the outside.

[0057] The quick-connect fitting 22 has an air inlet 40 in the through-opening 25, which may, for example, have a connection (not shown) for a pump. Air can be pumped into the hose body 14 through the air inlet 40, with the airflow passing through the check valve 38 located in the through-opening 25, through the valve stem 16, and then into the hose body 14. The check valve 38 prevents air from escaping.

[0058] The quick-connect fitting 22 is a push-in fitting, preferably with one or more features from DE10162658A1. The quick-connect fitting 22 has a self-locking mechanism that automatically secures the quick-connect fitting 22 to the valve stem 16 when it is pushed onto it, preventing movement against the insertion direction (indicated by arrow 39) while allowing the quick-connect fitting 22 to be pushed further in the insertion direction 39. This self-locking mechanism is formed by a spring-elastic retaining ring 30 with several claws 31 extending inwards and obliquely radially opposite the insertion direction 39. The claws 31 allow the quick-connect fitting 22 to be pushed onto the valve stem 16, but lock against the valve stem 16 in the opposite direction to the insertion direction 39, thus preventing it from being pulled off.

[0059] A seal 34 is arranged in a receiving chamber 29 of the quick-connect fitting 22. This seal rests against the outer surface of the valve stem 16 and provides a gas-tight seal between the quick-connect fitting 22 and the valve stem. The retaining ring 30 is located in the receiving chamber 29 between a spacer element 32, which is attached to the seal 34, and a guide ring 28, which is mounted on the receiving chamber 29. The seal 34 can, for example, be a sealing ring.

[0060] Furthermore, a release element 26, in the form of a release ring, is provided in the receiving chamber 29. The release element 26 can be manually pressed in the opposite direction to the insertion direction 39. When the release element 26 is pressed, the claws 31 deflect, disengaging from the valve stem 16. Thus, when the release element 26 is pressed, the quick-connect connector 22 is free to move in the opposite direction to the insertion direction 39, allowing it to be disconnected. To lock the release element 26, particularly to prevent accidental release, a removable locking element (not shown), e.g., a locking clip, can be provided in the intermediate area 27 between the release element 26 and the guide ring 28.

[0061] The quick-connect fitting 22 and the valve stem 16 together form an embodiment of a bicycle valve 15 according to the invention.

[0062] The figure shows the portion of the valve stem 16 protruding from the rim 12, specifically the clear height 23 of the valve stem 16, completely enclosed by the quick-connect fitting 22. This allows for improved aerodynamics and / or improved shape design.

[0063] The bicycle inner tube 11, in particular the tube body 14 and / or the valve stem 16, may preferably be made of or consist of PU, especially TPU.

[0064] Figures 2-4 show schematic representations of further embodiments of the bicycle valves 15 according to the invention. The quick-connect fittings 22 are shown only schematically (and not in section).

[0065] Figure 2 shows a quick-connect fitting 22 attached to the valve stem 16, which completely accommodates the protruding part of the valve stem 16. The quick-connect fitting 22 has three (schematically shown) ports 40, 42, 44, which are preferably connected to the through-hole 21 of the valve stem 16 (see Fig. 1) via a through-opening 25, allowing air to pass through. One or more of the ports 40, 42, 44 can be, for example, a pump port, such as a Schrader valve-pump port, a Presta valve-pump port, or a Dunlop valve-pump port; or a puncture protection connection; or a port for a pressure sensor, which may include the pressure sensor itself. One or more of the ports 40, 42, 44 can preferably have valves, such as check valves.

[0066] Figure 3 shows a bicycle valve 15 based on the bicycle valve 15 from Figure 2. In contrast to the embodiment from Figure 2, the quick-connect fitting 22 from Figure 3 has only one connection 40, in particular a pump connection.

[0067] A rim magnet 46 is attached to the valve stem 16 and rests against the rim 12. The rim magnet 46 is positioned between the quick-connect fitting 22 and the rim 12 and is secured by the quick-connect fitting 22, specifically by clamping it against the rim 12. Thus, the quick-connect fitting 22 only accommodates a portion of the valve stem 16, with the remaining central portion enclosed by the rim magnet 46.

[0068] Figure 4 shows a bicycle valve 15, which is based on the bicycle valve 15 from Figure 3. The rim magnet 46 is fixed against the rim 12 by the quick-connect fitting 22.

[0069] In Figure 4, however, the valve stem 16, along with part of the tubular section 20, extends completely through the quick-connect fitting 22, so that the end section with the air inlet opening 37 protrudes from the quick-connect fitting 22. The air inlet opening 37 may have a connection (not shown).

[0070] In schematic representation, the valve stem 16 has a check valve 38 to prevent air from escaping the bicycle inner tube 11. The check valve 38 is shown here arranged inside the valve stem 16, although in a preferred, alternative embodiment an external arrangement is also possible. In a further, alternative embodiment, it is also possible to arrange another quick-connect fitting 22, in particular one having a check valve, on the protruding section.

[0071] In the embodiment shown in Figure 4, the quick-connect fitting 22 primarily functions as a rim nut. In the embodiment shown in Figure 4, a seal 34 is not necessary, and therefore preferably no seal 34 is provided.

[0072] The embodiment shown in Figure 5 essentially corresponds to that shown in Figure 1. In contrast to the embodiment shown in Figure 1, the quick-connect fitting 22 in Figure 5 does not have a check valve, but rather a free through-hole 21. The quick-connect fitting 22 also has a connection 40 in the form of an internal thread 58 within the through-hole 21. The connection 40 can, in particular, be configured as a valve seat, preferably for a valve insert such as a Schrader valve insert, a Presta valve insert, and / or a Dunlop valve insert.

[0073] A cover element 50 is arranged around the quick-connect fitting 22, wherein a lateral surface 56 of the cover element 50 encloses the part of the quick-connect fitting 22 facing the rim 12. The cover element 50 is preferably made of an elastomer. The cover element 50 seals the quick-connect fitting 22 preferably against dust, dirt, and / or water. Furthermore, a collar 52 of the cover element 50 serves as an intermediate element, preferably a damping element, so that the quick-connect fitting 22 is brought into contact with the rim 12 via the intermediate element. The cover element 50 also has a radially inwardly projecting extension, which is arranged in the intermediate area 27 and thus functions as a locking element for the release element 26. When the cover element 50 is removed, the release element 26 is released.

[0074] Figure 6 shows part of an embodiment of a bicycle inner tube 11 according to the invention (only partially shown).

[0075] The bicycle inner tube 11 has an inflatable tube body 14, which is gas-tightly connected to a tubular section 20 of the valve stem 16 via a valve base 18, which is, for example, bonded to the tube body 14. The valve base 18 is preferably connected to the tubular section 20 by means of a force-fit, bonded, and / or form-fit connection 70, which, for example, has a galvanized coating 71. The tubular section 20 corresponds in particular to the valve stem 16. The valve stem 16 preferably comprises metal, in particular aluminum and / or brass, and is most preferably made of metal.

[0076] The valve stem 16 has a plug nipple 91 formed integrally with it. For the connection of the plug nipple 91, the valve stem 16 has a circumferential bead 94 and a circumferential groove 92 arranged next to the bead. At its free end, the plug nipple 91 tapers conically to facilitate the connection of the quick-connect fitting 22.

[0077] To connect the quick-connect fitting 22 to the push-in nipple 91, the quick-connect fitting 22, in the embodiment shown in Figure 6, has a coupling sleeve 93. The coupling sleeve 93 has a locking device 95 comprising locking balls 95. The locking balls 95 engage in the groove 92 behind the bead 94, thus achieving a positive locking connection of the quick-connect fitting 22 to the valve stem via the coupling sleeve 93. The bead 94 and the groove 92 together form a retaining structure 97 for the coupling sleeve 93.

[0078] The locking balls 95 can be selectively engaged in and disengaged from the groove 92 by means of a movable, spring-loaded release element 26, in the form of a release ring, so that the coupling sleeve 93 can be decoupled in this way.

[0079] Bicycle inner tube 11 and valve stem 16 are shown as half sections, while the quick connector 22 is shown in full section.

[0080] The coupling sleeve 93 and the plug nipple 91 together form a quick coupling 90, preferably a compressed air quick coupling.

[0081] The quick-connect fitting 22 has a check valve 38 with a disc-shaped locking element 41 (instead of the spherical locking element according to Figure 1).

[0082] The quick-connect fitting 22 and the valve stem 16 from Figure 6 together form a further embodiment of a bicycle valve 15 according to the invention.

[0083] Another preferred embodiment consists in particular in that a quick-connect fitting 22 in the form of a push-in fitting with a spring-elastic retaining ring 30 (see, for example, Fig. 1) having, preferably, claws 31, engages in a retaining structure 97 of the valve stem 16, preferably having a groove 92 designed as a groove, and thus fixes the quick-connect fitting 22 to the valve stem 16.

Claims

Claims 1. Bicycle valve (15), with a valve stem (16) having a through hole (21), and a quick-connect fitting (22) attached to the valve stem (16).

2. Bicycle valve (15) according to claim 1, characterized in that the valve stem (16) is an empty hollow stem.

3. Bicycle valve (15) according to claim 1 or 2, characterized in that the valve stem (16) comprises, in particular consists of, metal, such as aluminium and / or brass, or plastic.

4. Bicycle valve (15) according to one of claims 1 to 3, characterized in that the quick-connect fitting (22) has a self-locking mechanism which secures the quick-connect fitting (22) on the valve stem (16) in the opposite direction to the insertion direction of the quick-connect fitting (22).

5. Bicycle valve (15) according to one of claims 1 to 4, characterized in that the quick-connect fitting (22) has a spring-elastic retaining ring (30), preferably with claws (31) projecting radially inwards, in particular obliquely.

6. Bicycle valve (15) according to one of claims 1 to 5, characterized in that the valve stem (16) has a plug nipple (91), in particular one integrally formed therewith.

7. Bicycle valve (15) according to claim 6, characterized in that the plug nipple (91) has a retaining structure (97) having in particular a groove (92) and / or a bead (94) for positive locking fixing of the quick connector (22) on the plug nipple (91).

8. Bicycle valve (15) according to claim 5, characterized in that the spring-elastic retaining ring (30), in particular the claws (31), engages in a groove (92) of the valve stem (16), preferably of a plug nipple (91) of the valve stem (16), for fixing the quick-connect fitting (22) on the valve stem (16).

9. Bicycle valve (15) according to one of claims 1-8, characterized in that the quick-connect fitting (22) has a coupling sleeve (93) for positive locking fixing of the quick-connect fitting (22) on the valve stem (16).

10. Bicycle valve (15) according to claim 9, characterized in that the coupling sleeve (93) has a locking device (95) for fixing the coupling sleeve (93) on the valve stem (16), in particular having at least one locking ball (96) and / or a locking pawl.

11. Bicycle valve (15) according to one of claims 1 to 10, characterized in that the quick-connect fitting (22) has a release element (26), in particular an axially movable one, for releasing the connection of the quick-connect fitting (22) with the valve stem (16).

12. Bicycle valve (15) according to one of claims 1 to 11, characterized in that the quick-connect fitting (22) has a seal (34) for sealing between the quick-connect fitting (22) and the valve stem (16).

13. Bicycle valve (15) according to one of claims 1 to 12, characterized in that the quick-connect fitting (22) has at least one port (40, 42, 44) or at least two ports (40, 42, 44).

14. Bicycle valve (15) according to claim 13, characterized in that the at least one connection (40, 42, 44) has an internal and / or external thread.

15. Bicycle valve (15) according to one of claims 1 to 13, characterized in that the quick connector (22) has a valve, in particular a check valve (38).

16. Bicycle valve (15) according to claim 15, characterized in that the opening cross-section of the valve is at least 70%, preferably at least 80%, particularly preferably at least 90% and even more preferably at least 95% of the cross-section of the through-hole (21).

17. Bicycle valve (15) according to one of claims 1 to 16, characterized in that the quick connector (22) has a pressure sensor.

18. Bicycle valve (15) according to one of claims 1 to 17, characterized in that the valve stem (16), in particular a plug nipple (91) of the valve stem (16), is produced by extrusion and preferably a valve base (18) of the valve stem (16) is injection molded onto the plug nipple (91).

19. Bicycle inner tube (11), with a hose body (14), in particular made of TPU, a bicycle valve (15) connected to the hose body (14) according to one of claims 1 to 18.

20. Bicycle wheel (10) with a Rim (12) and a bicycle inner tube (11) mounted on the rim (12) according to claim 19; or a bicycle valve (15) connected to the rim (12) according to one of claims 1 to 18.

21. Bicycle wheel (10) according to claim 20, characterized in that the quick-connect fitting (22) covers the clear height of the valve stem (16) to a large extent, in particular substantially completely.

22. Bicycle wheel (10) according to claim 20 or 21, characterized in that the bicycle wheel (10) has a rim magnet (46) between quick connector (22) and rim (12).

23. Use of a quick-connect fitting (22) as a valve and / or as a rim nut on a valve stem (16) of a bicycle inner tube (11), in particular a bicycle inner tube (11) according to claim 19.

24. Method for assembling a bicycle wheel (10) having a rim (12) with a valve stem arranged thereon, comprising the step of externally attaching a valve to the valve stem (16).

25. Method according to claim 24, characterized in that the step of attaching the valve is carried out by attaching a quick-connect fitting (22) having the valve.

26. Method according to claim 24 or 25, characterized in that when attaching the valve, the valve, in particular the quick-connect fitting (22), is brought into contact with the rim (12).

27. Method according to one of claims 24 to 26, characterized in that the method comprises the further step: Attaching a rim magnet (46) to the valve stem (16) before attaching the valve to the valve stem (16).

28. A method according to any one of claims 24 to 27, wherein the method comprises the following step before attaching the valve: Shortening, in particular cutting off, the valve stem (16).

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