Radventil

Abstract

Wheel valve - a valve body (VK), - a receiving device (ANV) attached to the valve body (VK) for receiving an electronic component (K), comprising • a cavity (H) and • an elastic material (M), wherein the elastic material (M) has an opening (O) to the cavity (H), which is designed such that the electronic component (K) can be received in the cavity (H) of the receiving device (ANV) by deformation of the elastic material (M) in the region of the opening (O), characterized in that the wheel valve also has a closure element (V) which at least partially surrounds the opening (O), wherein the closure element is designed as a clip surrounding the elastic material (M) in the region of the opening (O) or as a band surrounding the elastic material (M) in order to reduce the opening (O) after the electronic component (K) has been introduced into the cavity (H) of the receiving device.

Description

[0001] The invention relates to a wheel valve.

[0002] DE 11 2008 000 402 T5 discloses a tire pressure monitoring assembly comprising a sensor attached to a valve stem assembly. The valve stem assembly is mounted in an opening of a wheel rim. The sensor is attached to a valve stem with a clamp. The clamp is held in a retaining housing of the sensor until it engages the valve stem. The retaining housing contains a cavity with openings for receiving the valve stem. The valve stem is inserted into the cavity until the clamp engages a groove on the valve stem. The valve stem has a chamfered end that spreads the clamp so that it can be guided along the outer surface of the valve stem until it snaps into the groove on the valve stem.

[0003] From the generic document DE 102 36 140 A1, a wheel valve is known comprising a valve body formed from a rubber material in a casing region thereof, and a receiving device vulcanized to the valve body for receiving an electronic component designed as a transponder. The receiving device comprises a cavity and an elastic material, wherein the elastic material has an insertion opening leading into the cavity, which is designed such that the electronic component can be received in the cavity of the receiving device by deforming the elastic material in the region of retaining beads in the region of the opening.

[0004] Further wheel valves comprising a valve body and a receiving device fastened to the valve body for receiving an electronic component are known, for example, from DE 10 2006042 565 A1, DE 603 ​​10 671 T2, US 2008 / 0276995 A1, EP 2 206 614 A1, EP 2 208 623 A1 and DE 10 2007 014 211 A1.

[0005] The object of the invention is to provide a wheel valve which provides an improved receiving device for an electronic component.

[0006] This problem is solved by the subject matter of the independent claim. Advantageous further developments arise from the dependent claims.

[0007] According to a first aspect of the invention, a wheel valve comprises a valve body and a receiving device fastened to the valve body for receiving an electronic component. The receiving device comprises a cavity and an elastic material. The elastic material has an opening to the cavity, which opening is designed such that the electronic component can be received in the cavity of the receiving device by deforming the elastic material in the region of the opening. According to the invention, the wheel valve additionally comprises a closure element that at least partially surrounds the opening, wherein the closure element is designed as a clasp that surrounds the elastic material in the region of the opening or as a band that surrounds the elastic material in order to reduce the opening after the electronic component has been introduced into the cavity of the receiving device.

[0008] The wheel valve according to the aforementioned aspect of the invention provides an improved receiving device for receiving the electronic component, in particular in that the receiving device comprises an elastic material and the electronic component can be received in the cavity of the receiving device by deforming the elastic material in the region of the opening. As a result, the electronic component can be easily inserted into the receiving device or received therein and, if necessary, removed from the receiving device again by further deforming the elastic material in the region of the opening. As a result, the wheel valve with the receiving device attached to the valve body can easily continue to be used if the electronic component needs to be replaced, for example due to an excessively low operating voltage of a battery supplying the electronic component with energy.

[0009] In one embodiment, the elastic material at least partially surrounds the cavity. Furthermore, it is possible for the elastic material to completely surround the cavity, with the exception of the opening.

[0010] The receiving device can be attached to the valve body by means of an adhesive bond. This allows for particularly simple attachment of the receiving device to the valve body.

[0011] In a further embodiment, the valve body comprises a valve insert and a casing surrounding the valve insert. The receiving device can, in particular, be formed integrally with the casing. This enables particularly reliable attachment of the receiving device to the valve body.

[0012] In another embodiment, the elastic material comprises a rubber compound. Such rubber compounds are particularly suitable for such a receiving device for receiving and, if necessary, for removing the electronic component.

[0013] A surface normal of the opening can enclose an angle α with a longitudinal axis of the valve body, where 0° ≤ α ≤ 360°.

[0014] Furthermore, it is possible for the wheel valve to also have a stiffening element, wherein the stiffening element extends from the valve body to the receiving device and fixes the receiving device in a predetermined orientation relative to the valve body. This allows a defined alignment of the receiving device relative to the valve body to be realized in a particularly reliable manner. The stiffening element can be designed, for example, as a reinforcing rib.

[0015] The receiving device can also have at least one reinforcing element arranged in the elastic material for mechanically reinforcing the elastic material. This can advantageously increase the stability of the receiving device.

[0016] The wheel valve has a closure element in the form of a circumferential band or clasp that extends at least partially around the opening. The closure element serves to at least partially close the receiving device, i.e., to reduce the opening after the electronic component has been inserted into the cavity of the receiving device, thereby further improving the fixation of the electronic component in the receiving device, even when high forces are applied to the wheel valve, particularly at high wheel speeds.

[0017] When installed on a wheel of a vehicle, the wheel valve also has an electronic component housed in the cavity of the receiving device. The electronic component can be introduced into the cavity of the receiving device before or after the wheel valve is installed on the wheel by deforming the elastic material in the area of ​​the opening. After insertion, the electronic component can essentially fill the cavity.

[0018] The electronic component preferably has a pressure sensor and / or a temperature sensor. Using these sensors, the internal pressure of a tire in the area of ​​which the wheel valve is located, or the internal temperature of this tire, can be determined.

[0019] Furthermore, the electronic component can have a transmitting device, wherein the transmitting device preferably extends through the opening to an outer side of the receiving device. By means of such a transmitting device, for example, the determined pressure data and / or temperature data of the tire can be transmitted to a receiving device arranged outside the tire, for example a receiving device of a vehicle having the tire. The electronic component can thus be part of a tire pressure monitoring system (TPMS) of the vehicle. By arranging the transmitting device in such a way that it extends through the opening to an outer side of the receiving device, the transmission quality of signals emitted by the transmitting device can be advantageously increased.

[0020] The wheel valve can be designed as a so-called snap-in valve. For this purpose, the casing comprises a rubber compound or is formed from a rubber compound, whereby the casing can be fastened in the region of a circumferential recess on a wheel rim, for example, of a vehicle, in particular a motor vehicle.

[0021] In a further embodiment, however, the valve body has a screw connection, wherein the wheel valve can be fastened to a wheel rim of, for example, a vehicle, in particular a motor vehicle, by means of the screw connection.

[0022] The receiving device described in the previous embodiments can thus be used advantageously both for a snap-in valve and for a wheel valve that can be fastened to a wheel rim by means of a screw connection.

[0023] Embodiments of the invention will now be explained in more detail with reference to the accompanying figures. Fig. 1 shows a wheel valve according to an embodiment of the invention; Fig. 2A to 2D show wheel valves according to further embodiments of the invention; Fig. 3A to 3D show wheel valves according to further embodiments of the invention; Fig. 4A to 4E show several views of a wheel valve according to another embodiment of the invention; Fig. 5 to 13 show wheel valves according to further embodiments of the invention in an installed state attached to a wheel rim.

[0024] Components with the same functions are given the same reference numerals in the figures.

[0025] Fig. 1 shows a wheel valve RV according to an embodiment of the invention.

[0026] The wheel valve RV has a valve body VK and a receiving device ANV fastened to the valve body VK for receiving an electronic component K. The receiving device ANV has a cavity H and an elastic material M. The elastic material M has an opening O to the cavity H, which opening is designed such that the electronic component K can be received in the cavity H of the receiving device ANV by deformation of the elastic material M in the region of the opening O.

[0027] In the embodiment shown, the elastic material M partially surrounds the cavity H. In further embodiments, the elastic material M can also completely surround the cavity H outside the region of the opening O.

[0028] In the embodiment shown, the elastic material M of the receiving device ANV comprises a rubber mixture. The rubber mixture can contain, for example, chloroprene rubber and / or at least one of the rubbers from the group of diene rubbers, such as natural rubber, ethylene-propylene-diene rubber, butadiene rubber, isoprene rubber, and / or styrene-butadiene rubber.

[0029] The valve body VK comprises a valve insert VE and a casing UM surrounding the valve insert VE. In the embodiment shown, the wheel valve RV is designed as a snap-in valve SIV. For this purpose, the casing UM comprises a rubber compound or is formed from a rubber compound, wherein the casing UM is fixed in the region of a circumferential recess AN on a Fig. 1, a wheel rim (not shown), for example, of a vehicle, in particular a motor vehicle. The rubber compound of the casing UM can contain the rubbers already mentioned in connection with the rubber compound of the elastic material M of the receiving device ANV according to the previous embodiment.

[0030] The ANV receiving device can be attached to the valve body VK by means of an adhesive connection (not shown). This enables particularly simple attachment of the ANV receiving device to the valve body VK. Alternatively, the ANV receiving device can be formed integrally with the casing UM. This enables particularly reliable attachment of the ANV receiving device to the valve body VK.

[0031] The electronic component K accommodated in the cavity H of the receiving device ANV can, for example, be a component of a tire pressure monitoring system (TPMS) of the vehicle. For this purpose, the electronic component K can have a pressure sensor (not shown) and / or a temperature sensor (not shown) as well as a transmitting device (not shown) for transmitting the determined pressure data or temperature data to a receiving unit of the vehicle arranged outside the wheel. The transmitting device preferably extends through the opening O to an outer side A of the receiving device ANV. By arranging the transmitting device in such a way that it extends through the opening O to the outer side A of the receiving device ANV, the transmission quality of signals emitted by the transmitting device can advantageously be increased.

[0032] Fig. 2A to 2D show further wheel valves RV according to further embodiments of the invention.

[0033] The Fig. The wheel valves RV shown in Figures 2A to 2D differ from each other in the arrangement of the receiving device ANV on the valve body VK, ie in the orientation of the receiving device ANV in relation to the valve body VK. Due to the different arrangement options of the receiving device ANV on the valve body VK, the opening O through which the Fig. 2A to 2D, the electronic component not shown can be accommodated in the cavity H of the receiving device ANV, can be adapted to the respective conditions of the wheel to which the wheel valve RV is attached. As shown in the Fig. As shown in Figures 2A to 2D, a surface normal FN of the opening O can enclose an angle α with a longitudinal axis L of the valve body VK, where 0° ≤ α ≤ 360°.

[0034] Fig. 3A to 3D show wheel valves RV according to further embodiments of the invention.

[0035] The Fig. 3A to 3D again show different arrangement options of the receiving device ANV in relation to the valve body VK of the wheel valve RV.

[0036] The Fig. The RV wheel valves shown in Figures 3A to 3D differ from those shown in Fig. 1 to 2D shown wheel valves RV in that the Fig. The wheel valves RV shown in Figures 3A to 3D can be attached to a wheel rim (not shown) of a wheel by means of a screw connection. For this purpose, the valve bodies VK of the wheel valves RV each have a screw connection by means of which the wheel valves RV can be attached to the respective wheel rim.

[0037] Fig. 4A to 4E show several views of a wheel valve RV according to another embodiment of the invention.

[0038] The Fig. 4A, Fig. 4B and Fig. 4D schematic perspective views of the wheel valve RV. Fig. Figure 4C shows a side view of the wheel valve RV. Fig. 4E shows a sectional view of the wheel valve RV along the Fig. Section line AA-AA shown in Figure 4D.

[0039] As in the Fig. As shown in Figures 4A to 4E, the wheel valve RV in the illustrated embodiment also has a stiffening element VS. The stiffening element VS extends from the valve body VK to the receiving device ANV and fixes the receiving device ANV in a predetermined orientation relative to the valve body VK. In the illustrated embodiment, the stiffening element VS has two reinforcing ribs, each of which extends from the valve body VK to the receiving device ANV.

[0040] In addition, Fig. 4E by means of a first arrow P1 an insertion direction of the electronic component K into the cavity H of the receiving device ANV and by means of a second arrow P2 an insertion direction of the wheel valve RV into a wheel rim RF of a wheel is shown.

[0041] Fig. 5 to 13 show further embodiments of wheel valves RV according to the invention in an installed state, that is to say in a state in which the wheel valves RV are mounted on a wheel rim RF of a wheel of a vehicle, for example a motor vehicle.

[0042] In the Fig. The wheel valves RV shown in figures 5 to 13 are snap-in valves SIV. Fig. 5 to 13 again show different arrangements or orientations of the receiving device ANV in relation to the respective valve body VK of the wheel valve RV.

[0043] In addition, the Fig. The embodiments of the wheel valve RV shown in Figures 6 to 13 each have stiffening elements VS, wherein the respective stiffening element VS extends from the valve body VK to the receiving device ANV and fixes the receiving device ANV in a predetermined orientation to the valve body VK.

[0044] The Fig. The embodiment of the wheel valve RV shown in Figure 10 differs from the other embodiments shown in that the wheel valve RV also has a closure element V that at least partially encircles the opening O.

[0045] In the embodiment shown, the closure element V is designed, for example, as a clasp surrounding the elastic material M in the region of the opening O or as a band surrounding the elastic material M. In further embodiments, the closure element V can be designed, for example, as a reinforcing fiber arranged in the elastic material M or as a band surrounding the region of the opening O and arranged in the elastic material M.

[0046] The closure element V serves to at least partially close the receiving device ANV, i.e. to reduce the opening O after the electronic component K has been introduced into the cavity H of the receiving device ANV, whereby the electronic component K is fixed in the receiving device ANV to a further improved extent even when high forces are applied to the wheel valve RV, in particular at high wheel speeds.

[0047] The Fig. The embodiment of the wheel valve RV shown in Figure 11 further comprises a reinforcing element VSE. In the embodiment shown, the reinforcing element VSE is arranged in the elastic material M of the receiving device ANV for mechanically reinforcing the elastic material M. Furthermore, in the illustrated embodiment, the reinforcing element VSE is also arranged in the casing UM of the valve body VK, which comprises a rubber compound. The reinforcing element VSE can be formed, for example, as a flexible reinforcing fiber within the casing UM and within the elastic material M.

[0048] Furthermore, in the Fig. 5 to 13 each show a partial area of ​​a tire R of the respective wheel, to which the wheel valve RV is attached to the wheel rim RF. Furthermore, the respective trajectory of the tire R during the mounting of the tire R to the wheel rim RF is shown. As shown in the Fig. 5 to 13, the wheel valves RV according to the illustrated embodiments of the invention are located outside the area through which the tire R passes during assembly on the wheel rim RF, whereby damage to the wheel valve RV during assembly of the tire R can be advantageously avoided. List of reference symbols RV wheel valve VK valve body ANV recording device K component H cavity M Material O Opening VE valve insert UM sheathing FN surface normal L Longitudinal axis VS stiffening element VSE reinforcement element V locking element A outside SIV snap-in valve RF wheel rim AN recess P1 Arrow P2 Arrow R tires

Claims

[1] Wheel valve - a valve body (VK), - a receiving device (ANV) attached to the valve body (VK) for receiving an electronic component (K), comprising • a cavity (H) and • an elastic material (M), wherein the elastic material (M) has an opening (O) to the cavity (H), which is designed such that the electronic component (K) can be received in the cavity (H) of the receiving device (ANV) by deformation of the elastic material (M) in the region of the opening (O), characterized byin that the wheel valve additionally has a closure element (V) which at least partially encircles the opening (O), wherein the closure element is designed as a clip encircling the elastic material (M) in the region of the opening (O) or as a band encircling the elastic material (M) in order to reduce the opening (O) after the electronic component (K) has been introduced into the cavity (H) of the receiving device. [2] Wheel valve according to claim 1, wherein the receiving device (ANV) is attached to the valve body (VK) by means of an adhesive connection. [3] Wheel valve according to claim 1, wherein the valve body (VK) has a valve insert (VE) and a casing (UM) surrounding the valve insert (VE), wherein the receiving device (ANV) is formed integrally with the casing (UM). [4] Wheel valve according to one of the preceding claims, wherein the elastic material (M) comprises a rubber mixture. [5] Wheel valve according to one of the preceding claims, further comprising a stiffening element (VS), wherein the stiffening element (VS) extends from the valve body (VK) to the receiving device (ANV) and fixes the receiving device (ANV) in a predetermined orientation to the valve body (VK). [6] Wheel valve according to one of the preceding claims, wherein the receiving device (ANV) further comprises at least one reinforcing element (VSE) arranged in the elastic material (M) for mechanically reinforcing the elastic material (M). [7] Wheel valve according to one of the preceding claims, further comprising an electronic component (K) accommodated in the cavity (H) of the receiving device (ANV). [8] Wheel valve according to claim 7, wherein the electronic component (K) substantially fills the cavity (H). [9] Wheel valve according to claim 7 or claim 8, wherein the electronic component (K) comprises a pressure sensor and / or a temperature sensor. [10] Wheel valve according to one of claims 7 to 9, wherein the electronic component (K) comprises a transmitting device, wherein the transmitting device extends through the opening (O) to an outer side (A) of the receiving device (ANV). [11] Wheel valve according to one of the preceding claims, wherein the wheel valve (RV) is designed as a snap-in valve (SIV). [12] Wheel valve according to one of claims 1 to 10, wherein the valve body (VK) has a screw connection and wherein the wheel valve (RV) can be fastened to a wheel rim (RF) by means of the screw connection.

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