Tire connection valve device for connecting a tire repair kit to a tire valve and a tire repair kit to such a tire connection valve device

Description

[0001] The invention relates to a tire connection valve device as a connecting element between a filling hose of a breakdown assistance kit and a tire valve of a vehicle tire according to patent claim 1, as well as to a breakdown assistance kit for sealing and inflating vehicle tires according to patent claim 9.

[0002] Tire connection valves for breakdown kits, as well as breakdown kits with tire connection valves, are known in the art and are typically used to connect the breakdown kit to the vehicle tire or tire valve via a hose. A breakdown kit typically includes a compressor for generating compressed air, which is used to pump a sealant into the vehicle tire to seal it in the event of a breakdown and / or to inflate the tire after sealing.

[0003] DE102015220060, for example, discloses a tire connection valve or an adapter as a connecting element between a filling hose of a puncture kit and a tire valve of a tire, wherein the tire connection valve is designed to be self-closing by a spring-loaded valve body and the valve body is opened by applying the tire connection valve to the tire valve, wherein the tire connection valve has a device for detachable connection to the tire valve.

[0004] JP2007182036A discloses a connector and a connector set that possesses the required functions and can be manufactured cost-effectively. This document forms the basis for the preamble of patent claim 1.

[0005] US5070917A describes a compact device for sealed storage and subsequent dispensing of a predetermined charge of a tire sealing fluid into the interior of a tire, comprising a hollow fluid storage and transfer element with an inlet port and an outlet port in which the sealing fluid is arranged.

[0006] Furthermore, WO2015145443A1 discloses a device for inflating and sealing an inflatable object, comprising an airtight tube, at least one hermetic connector reversibly connected to one or both ends of the airtight tube, and a pressure source connected to either one end, the second end, or the at least one hermetic connector.

[0007] DE102015220060A1 discloses a tire connection valve as a connecting element between a filling hose of a puncture kit and a tire valve of a tire, wherein the tire connection valve is designed to be self-closing by a spring-loaded valve body and the valve body is opened by placing the tire connection valve on the tire valve and contains an annular seal arranged in its inner passage cross-section provided for air and / or sealant, which annular seal a) has a sealing surface on the outlet side in the direction of flow for sealing the front side of the screwed-in tire valve, b) has sealing surfaces on its outer circumference and on the inlet side in the direction of flow for sealing the knurled nut against the end piece of the filling hose, and c) has sealing and contact surfaces on its inner circumference and on the inlet side in the direction of flow for contact with the spring-loaded valve body.

[0008] JP2008002513A discloses a valve connector that suppresses the inclination of a valve element more than a conventional connector to reduce the resistance in a flow channel and ensure a stable flow rate.

[0009] Furthermore, EP2186628A1 describes a valve adapter for a sealing / inflating device that can release air from a tire without releasing the sealant remaining in the device.

[0010] Current developments in breakdown kits are resulting in increasingly smaller components, which is why functional elements, such as a drain valve, must be arranged differently than usual to ensure the kit continues to function for the consumer. The challenge is that these components must be dimensionally stable and cost-effective to meet today's requirements. A similar problem applies to tire connection valves.

[0011] This is where the present invention comes in. The object of the invention is to provide an improved tire connection valve device that is both cost-effective and easy to manufacture and capable of regulating air pressure. Furthermore, the object of the invention is to provide an improved breakdown kit that is both cost-effective to manufacture and offers a simple way to regulate air pressure in vehicle tires.

[0012] The object is achieved by a tire connection valve device having the features of patent claim 1. Furthermore, the object is achieved by a breakdown assistance kit having the features of patent claim 10.

[0013] The object is achieved by a tire connection valve device as a connecting element between a filling hose of a breakdown assistance kit and a tire valve of a vehicle tire, wherein the tire connection valve device has a base body with an inlet opening and an outlet opening, wherein an opening comprises at least one thread via which the tire connection valve device can be connected to the tire valve, and the tire connection valve device has a discharge valve for regulating the air, wherein the thread comprises plastic.

[0014] Advantageously, the tire connection valve device according to the invention with a thread comprising plastic is dimensionally stable and can be manufactured both easily and cost-effectively. The tire connection valve device according to the invention allows the air flow in the compressor to be maintained. Furthermore, the compressor housing can be compressed because the drain valve is integrated into the tire connection valve device.

[0015] According to the invention, the thread comprises plastic. Therefore, the section with the thread is at least partially made of plastic. A key advantage of plastic is its ease of handling during the manufacturing process, since the sections or components of the base body can be manufactured in a single process step. Preferably, the sections or the entire base body are manufactured using an injection molding process. Other processes are also conceivable.

[0016] According to the invention, the base body is designed so that air and / or sealant can flow through it. For this purpose, it has at least two openings, with the air and / or sealant flowing into the first opening and flowing out of the second opening. It is conceivable that the base body has a cylindrical shape.

[0017] In a preferred embodiment of the invention, the thread comprises a polyamide, particularly preferably a glass-fiber-reinforced polyamide. The use of polyamides is advantageous because polyamides are particularly suitable due to their excellent strength and toughness. Preferably, at least the section of the thread has a Shore hardness (A / D) of at least D84 and / or a tensile flexural modulus in the range of 500 to 16,000 MPa, in particular according to ISO 527. A further advantage is the heat distortion temperature B of at least 160°C according to ISO 75 HDT / B. Polyamides with such properties are particularly suitable because they are thus longer-lasting and significantly easier to produce. In addition, manufacturing costs are reduced. The polyamide is particularly preferably a polyamide 66 and / or a polyamide 6, also PA 66 or PA 6. PA 66 and / or PA 6 are advantageously particularly dimensionally stable.

[0018] In a further embodiment of the invention, the tire connection valve device has at least one closing element arranged in the housing. The closing element is designed such that it opens when the car valve is connected to the tire connection valve device. Particularly preferably, the closing element opens in a pressure-dependent manner, namely when the vehicle tire valve presses against the closing element. Advantageously, the tire connection valve device is closed when it is not connected to a vehicle tire valve, so that no medium can escape. The vehicle tire valve only opens after it is connected to the vehicle tire valve, allowing the user to use such a tire connection valve device safely.

[0019] Particularly preferably, the thread and the locking element are integrated into the base body. Advantageously, the base body, the thread, and the locking element are formed as a single component, making the production of such a component significantly simpler and more cost-effective.

[0020] In a further preferred embodiment, the tire connection valve device can be positively connected to the tire valve via the thread, allowing air and / or sealant to flow into the vehicle tire and / or air to flow out of the vehicle tire via the deflation valve. Advantageously, the thread is designed such that it can be connected to the tire valve in such a way that the tire can be filled with air and / or sealant in the event of a puncture. The air pressure can also be regulated via the deflation valve.

[0021] Further preferably, the drain valve is arranged substantially centrally along the longitudinal extension of the valve device. Advantageously, the drain valve is arranged centrally so that the valve device can be connected to the inflation hose on one side and to the tire valve via the thread on the other side. Particularly preferably, the drain valve is arranged on the base body.

[0022] Furthermore, the tire connection valve device, in particular the base body, is preferably designed as a single component. Particularly preferably, this component comprises or consists of plastic. Most preferably, the plastic is made of a polyamide, for example, polyamide 66 and / or polyamide 6. Advantageously, the base body, including the thread, can be manufactured in a single process step. A base body made of plastic, in particular polyamide, is particularly dimensionally stable.

[0023] In a further preferred embodiment of the invention, the release valve is designed as a pressure switch through which air can be released from the vehicle tire as soon as the pressure switch is activated. The pressure switch can be made of plastic, for example. The pressure switch is advantageously constructed in one piece. However, it is also conceivable for it to be constructed in multiple parts.

[0024] Furthermore, the release valve is preferably an opening with a screwable closure element. The closure element could, for example, comprise plastic, in particular polyamide, polyamide 66, and / or polyamide 6. Advantageously, such a closure element can close the release valve again when the desired air pressure in the tire is reached. Furthermore, it is possible for the user to regulate the overall air supply.

[0025] In a further preferred embodiment of the invention, the base body has a connecting element through which it can be connected to a filling hose or a sealant bottle. The connecting element can, for example, be tapered so that the filling hose can be plugged onto the connector.

[0026] Furthermore, the object of the invention is achieved by a breakdown assistance kit for sealing and inflating vehicle tires, comprising a compressor with an electric motor for generating the sealing and / or pumping pressure, a connection for a container with sealant and a filling hose through which air and / or sealant can flow via the compressor, characterized in that the breakdown assistance kit comprises a described tire connection valve device.

[0027] Advantageously, such a breakdown kit according to the invention is easy and safe for the user to use, as it has a drain valve on the tire connection valve device. The breakdown kit with such a tire connection valve device, which has at least one thread comprising plastic, is significantly easier to manufacture and exhibits improved stability in terms of service life.

[0028] Further advantages and features of the tire connection valve device and the breakdown assistance kit according to the invention emerge not only from the description but also from the subclaims, which relate to advantageous embodiments of the present invention and are not to be understood as limiting. The invention also encompasses combinations of the features of various subclaims, even if the subclaims do not relate to one another or if they belong to different claim categories. Furthermore, combinations of preferred and particularly preferred embodiments can also be combined with one another. This also applies to the individual features of the exemplary embodiment discussed below, unless they are recognizable to a person skilled in the art as necessarily belonging to one another. Character description

[0029] Further details and advantages of the present invention will become apparent from the following description of the embodiment in conjunction with the drawing. Figure 1 shows an embodiment of the tire connection valve device according to the invention.

[0030] Figure 1shows an embodiment of the tire connection valve device 1 according to the invention, which comprises a base body 2. A deflation valve 3 is arranged on the base body 2 as a push button. Furthermore, the base body 2 has a taper 4 at one end, to which a filling hose 5 is connected. Air and / or sealant is pumped into the tire via the filling hose 5 via the tire connection valve device 1. The other end of the base body 2 has a thread 6. The car valve is connected to the valve device 1 via the thread 6. Furthermore, the valve device 1 has a closing element 7, which only opens the valve device 1 when it is connected to the car valve. For this purpose, the closing element 7 has a projection that projects into the area of ​​the thread 6 and which presses and opens the car valve when it is connected to the tire connection valve device 1. List of reference symbols:

[0031] 1Tire connection valve assembly 2Base body 3Drain valve 4Taper 5Filling hose 6Thread 7Closing element

Claims

1. Tyre attachment valve device (1) as a connecting element between a filling tube of a puncture repair kit and a tyre valve of a vehicle tyre, wherein the tyre attachment valve device (1) has a main body (2) with an inlet opening and an outlet opening, wherein an opening comprises at least one thread (6) via which the tyre attachment valve device (1) can be connected to the tyre valve, and the tyre attachment valve device (1) has a discharge valve (3) for regulating the air, wherein the tyre attachment valve device (1) has at least one closing element (7) which is arranged in the housing, wherein the tyre attachment valve device (1) only opens when it is connected to a car tyre valve, characterized in that the main body (2), the thread (6) and the closing element (7) are formed as one component, wherein the thread (6) comprises plastic.

2. Tyre attachment valve device (1) according to Claim 1, characterized in that the thread (6) comprises a polyamide, preferably a polyamide with glass fibre reinforcement, wherein the polyamide very preferably comprises a polyamide 66 and / or polyamide 6.

3. Tyre attachment valve device (1) according to Claim 1 or 2, characterized in that the tyre attachment valve device (1) can be positively connected to the tyre valve via the thread (6), so that air and / or sealant can flow into the vehicle tyre and / or air can flow out of the vehicle tyre via the discharge valve (3).

4. Tyre attachment valve device (1) according to any of the preceding claims, characterized in that the discharge valve (3) is arranged substantially centrally in the longitudinal extent of the tyre attachment valve device (1), in particular on the main body (2).

5. Tyre attachment valve device (1) according to any of the preceding claims, characterized in that the tyre attachment valve device (1), in particular the main body (2), is designed as a component and preferably comprises plastic or consists of plastic, particularly preferably of polyamide 66 and / or polyamide 6.

6. Tyre attachment valve device (1) according to any of the preceding claims, characterized in that the discharge valve (3) is designed as a pressure switch, by way of which air can be conveyed out of the vehicle tyre as soon as the pressure switch is actuated.

7. Tyre attachment valve device (1) according to any of the preceding claims, characterized in that the discharge valve (3) is an opening which has a screw-off closure element.

8. Tyre attachment valve device (1) according to any of the preceding claims, characterized in that the main body (2) has an attachment element, by way of which it can be connected to a hose (5) or to a sealant bottle.

9. Puncture repair kit for sealing and pumping up vehicle tyres, comprising a compressor with an electric motor for generating the sealing and / or pumping pressure, an attachment for a container containing sealant, and a filling tube through which air and / or sealant can flow via the compressor, characterized in that the puncture repair kit comprises a tyre attachment valve device (1) according to any of the preceding claims.