DE102009003471A1 - Compressed air system for inflating punctured pneumatic tires with air and sealant, includes valve connecting either compressor or sealant container to tire - Google Patents

Abstract

The system includes a compressor (16) and a sealant container (12), each separately connected to an input (28, 30) of a 2/3-way valve (8). The valve has an output (32) connected via a line (22) and filling valve (4) to the tire (2). Emptying the sealant container and using the valve are both manual operations. In one position the valve connects the compressor to the tire; in the other it connects the sealant container to the tire.

Description

The The invention relates to a filling system for a Pneumatic tire with which a sealant and compressed air in the pneumatic tire is transportable. Such filling systems are included used a puncture to the damaged pneumatic tires To seal a vehicle provisionally and then refill with compressed air.

Such repair agents are known in large numbers. By way of example, the device for filling a pneumatic tire according to the DE 103 42 734 A1 reference is made, in which a manually operated pressure reducing valve is used to control the filling of the tire both with sealant and with compressed air. The sealant and the compressed air are housed in a common stable container, wherein the compressed air and the sealant are separated by an axially displaceable piston. When you open the pressure reducing valve to control the filling process, the sealant and then the compressed air are pushed out of the container first towards the pneumatic tire. The filling of the container with compressed air via a separate filling valve, which is located far from the pressure reducing valve on the container wall. This device is judged to be expensive to manufacture and because of the stored in the container over a long period of compressed air as not practical.

In front In this background, the invention is based on the object To introduce a filling system for a pneumatic tire, which is inexpensive to produce and because of its comparatively Simple structure is easy to use.

The Solution to this problem arises from the features of Claim 1, while advantageous developments of the filling the dependent claims are removable.

Of the Invention is based on the finding that the production costs a generic filling system not insignificant of the cost of the sealant container and the compressed air tank are determined. So if it is manages a cost-effective sealant container to use and to dispense with a compressed air tank, so is likely a very cost filling system be feasible.

The Invention is according to the features of the claim 1 therefore from a filling system for a pneumatic tire, with a sealant and compressed air in the pneumatic tire conveyed is. To solve the task is hereby provided that the filling system a compressor, a sealant container and a 2/3-way valve, wherein the compressor and the sealant container are each connected to an input of the 2/3-way valve, wherein the 2/3-way valve has an output that via a connecting line is connectable to a filling valve on the pneumatic tire, wherein the sealant container is designed as a container that can be emptied by hand is, and wherein the 2/3-way valve as a manually operable Valve is formed, which in the one operating position the compressor and in the other operating position the Sealant container with the filling valve on the pneumatic tire combines.

This Filling system for a pneumatic tire has several Advantages. So this is small and handy in its dimensions manufacturable, as it is in the simplest case in a very cost-effective sales version only the 2/3-way valve and the sealant tank connected to it having two connecting hoses. It is therefore easy in most vehicles in a storage compartment or in the trunk accommodated. The compressor needs only when needed, so in concrete Repair case, to be connected to the 2/3-way valve. Another Advantage of the filling system according to the invention is to be seen in that the sealant container such is designed to be expressed by hand by an operator can be, so that this on separate Auspressmittel, such as Compressed air, can be dispensed with. This makes the overall construction small and less susceptible to interference.

In further embodiment of the filling according to the Invention may be provided that the compressor over a separate connecting line with the input of the 2/3-way valve connected is. Likewise, it is judged to be advantageous, though the 2/3-way valve via a separate connecting line can be connected to the filling valve on the pneumatic tire. hereby It is easier that the 2/3-way valve together with the sealant container in the hands of the operator is taken to squeeze the sealant and then the pneumatic tire is filled with compressed air.

Prefers is also envisaged that the sealant container directly on a mounting flange on the piston of the 2/3-way valve is attached. In another variant, the sealant container connected to the valve body.

For simple mechanical actuation of the filling system, the invention provides that the 2/3-way valve has at the axial ends of its valve piston actuating surfaces which are designed to receive a manual actuating force. At this actuation surfaces acts in practice a thumb or a ball of the hand of the operator to said valve piston axially between NEN to move both operating positions.

In order to the sealant container easily by a less too strong person can be emptied, is preferably provided that this consists of an elastic material. The material the sealant container preferably consists of a in a temperature range of -35 ° C to + 75 ° C elastic and tear-resistant plastic or aluminum material. Laboratory studies have shown that such a material the required conditions regarding elasticity, tear resistance and flexibility. As a sealant can z. B. the latex material LAX 13-6 are used.

Further It will be very important for the realization of a lot assessed in an economically producible filling system, if the sealant container is designed as a bag, formed at the at its opening end a screw which is on the mounting flange of the piston or the housing of the 2/3-way valve can be fastened.

to Further explanation of the invention is the description a drawing attached to an embodiment.

In the single figure is schematically a pneumatic tire 2 and a total with the reference numeral 6 provided filling system shown. The filling system 6 has a compressor in its operational configuration as main components 16 , a sealant container 12 and a 2/3-way valve 8th on. The sealant container 12 is with an entrance 28 of the 2/3-way valve 8th and the compressor 16 via a connecting line designed as a hose 20 with an entrance 30 of the 2/3-way valve 8th connected. In addition, the 2/3-way valve 8th on his case 10 an exit 32 on that over a connecting line 22 in the form of a flexible hose with a filling valve 4 on the pneumatic tire 2 connected is. The compressor 16 has an electric motor drivable air pump 18 , which compresses air that can be drawn in from the outside.

The entrance 30 on the housing 10 is formed in the illustrated embodiment for the supply of compressed air, the input 28 for the supply of the sealant 24 ,

The sealant container 12 is designed as a hand-emptying bag which is connected to a mounting flange via a short connecting tube 14 of the 2/3-way valve 8th screwed on. The sealant container 12 consists of a plastic material that is elastic and tear-resistant within a temperature range of -35 ° C to + 75 ° C. Like the outline of the sealant container 12 This is illustrated with a sealant 24 for sealing the pneumatic tire 2 filled.

The 2/3-way valve 8th is designed as a manually operable valve, which in the one operating position of its valve piston 38 the compressor 16 and in the other operating position the sealant container 12 with the filling valve 4 on the pneumatic tire 2 combines. This is the valve piston 38 in the case 10 arranged axially displaceable, with its two actuating directions by the arrows 26 and 27 are shown.

Next, the figure shows that the valve piston 38 of the 2/3-way valve 8th at its axially opposite ends actuating surfaces 34 and 36 which are adapted to receive a manual operating force exerted by an operator.

A concrete filling process of the pneumatic tire 2 with sealant 24 and compressed air runs as follows:
First, the one at the exit 32 of the 2/3-way valve 8th fixed connection line 22 with the filling valve 4 of the pneumatic tire 2 connected. In this case, the valve insert in the filling valve 4 be left in order not to lose the valve insert when unscrewing or dirty. When the valve insert is unscrewed, the filling time is reduced. Subsequently, the at the entrance 30 of the 2/3-way valve 8th fixed connection line 20 with the compressor 16 connected.

Then, by manually applying an operating force to the actuating surface 34 of the valve piston 38 in the direction of the arrow 26 the 2/3-way valve 8th brought into a switching position in which a connection between the sealant bag 12 and the connection line 22 or the pneumatic tire 2 is created. Then by applying a force to the sealant container 12 the sealant 24 out of this container 12 driven out and over the connection line 22 as well as the filling valve 4 in the pneumatic tire 2 pushed. Once the sealant container 12 is sufficiently drained, the valve piston 38 by applying a manual operating force to the actuating surface 36 in the direction of the arrow 27 brought into its second switching position, allowing a connection between the compressor 16 and the filling valve 4 of the pneumatic tire 2 is created. Subsequently, the filling of the pneumatic tire takes place 2 with compressed air.

Should the hand force of the operator of the filling system 6 not enough to seal the sealant 24 from the sealant container 12 To squeeze out, so this can also use tools, such as one from the DE 1 611 934 A1 known tube extrusion device.

2

tire

4

Filling on the pneumatic tire

6

Filling system

8th

3/2-way valve

10

casing of the 3/2-way valve

12

Sealant bottle

14

mounting flange

16

compressor

18

air pump

20

Interconnector tube

22

Interconnector tube

24

sealant

26

operating direction

27

operating direction

28

entrance at the 3/2-way valve

30

entrance at the 3/2-way valve

32

output at the 3/2-way valve

34

actuating surface at the 3/2-way valve

36

actuating surface at the 3/2-way valve

38

plunger of the 3/2-way valve

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 10342734 A1 [0002]
• - DE 1611934 A1 [0021]

Claims (8)

Filling system ( 6 ) for a pneumatic tire ( 2 ), with which a sealant ( 24 ) and compressed air in the pneumatic tires ( 2 ), characterized in that the filling system ( 6 ) a compressor ( 16 ), a sealant container ( 12 ) and a 2/3-way valve ( 8th ) that the compressor ( 16 ) and the sealant container ( 12 ) each with an input ( 28 ; 30 ) of the 2/3-way valve ( 8th ), that the 2/3-way valve ( 8th ) an output ( 32 ), which has a connection line ( 22 ) with a filling valve ( 4 ) on the pneumatic tire ( 2 ) is connectable, that the sealant container ( 12 ) is designed as a hand-emptied container, and that the 2/3-way valve ( 8th ) is formed as a manually operable valve, which in one actuating position the compressor ( 16 ) and in the other operating position the sealant container ( 12 ) with the filling valve ( 4 ) on the pneumatic tire ( 2 ) connects. Filling system according to claim 1, characterized in that the compressor ( 16 ) via a separate connection line ( 20 ) with the entrance ( 30 ) of the 2/3-way valve ( 8th ) connected is. Filling system according to claim 1, characterized in that the 2/3-way valve ( 8th ) via a separate connection line ( 22 ) with the filling valve ( 4 ) on the pneumatic tire ( 2 ) is connectable. Filling system according to one of claims 1 to 3, characterized in that the sealant container ( 12 ) directly on a mounting flange ( 14 ) on the piston ( 38 ) or on the housing ( 10 ) of the 2/3-way valve ( 8th ) is attached. Filling system according to one of the preceding claims, characterized in that the 2/3-way valve ( 8th ) at the axial ends of the piston ( 38 ) Actuating surfaces ( 34 . 36 ), which are designed to receive a manual actuating force. Filling system according to one of the preceding claims 1 or 4, characterized in that the sealant container ( 12 ) consists of an elastic material. Filling system according to claim 6, characterized in that the sealant container ( 12 ) consists of a in a temperature range of -35 ° C to + 75 ° C elastic and tear-resistant plastic or aluminum material. Filling system according to claim 6 or 7, characterized in that the sealant container ( 12 ) is designed as a bag.