KR0116531Y1 - Tire pressure control device - Google Patents

Abstract

In order to prevent the vehicle from overturning due to the rupture of the tire T during the high-speed driving of the vehicle, the flat portion 1 formed outside the rim 52, that is, between the rim 52 and the tire T, A sensing means installed between the one rim 52 and the inner surface of the tire T to detect a pressure drop due to the rupture of the tire T, and connected to the sensing means to supply air from the tank 2 to the tire T. It is composed of a striking means to be ejected and a storage means coupled to the tank 2 so as to draw the high pressure air inside the tank 2 to the outside by the above-mentioned striking means, thereby preventing overturning accidents. It becomes possible.

Description

Tire pressure holding device

1 is a cross-sectional view showing an installation state of the tire pressure maintaining device according to the present invention.

2 is an exploded perspective view of FIG.

3 is a plan view of FIG.

4 is an enlarged cross sectional view of the storage means in FIG.

FIG. 5 is a sectional view of the cylinder in FIG.

6 is a cross-sectional view showing a general wheel for a vehicle.

* Explanation of symbols for main parts of the drawings

1: flat part 2: tank

3: bracket 4: vent hole

5: cylinder 6: piston rod

7: piston 8: first hinge

9: first locking groove 10: the first link member

11,15 projection 12: second locking groove

13: second hinge 14: second link member

16: hitting unit 17: the third hinge

18: third link member 19: spring

20: puncture nozzle 21: storage member

22: pressure measuring nozzle 23: hole

24: guide rod 25: sealing member

26: guide 27: spring

28: projection 29: groove

30: sealing material 31: cap

The present invention relates to a tire, and more particularly, to a tire pressure maintaining device for a vehicle for preventing the vehicle overturning due to the rupture of the tire during high-speed driving of the vehicle.

In general, an automobile is classified into a vehicle body and a chassis, and the chassis includes an engine, a power transmission device, a suspension, a braking device, and the like, which are organically connected to each other. It is configured to achieve.

The vehicle as described above is normally maintained by the ECU (Electronic Control Unit) to control each device to maximize the performance of the car, the fuel supply state, intake and exhaust air amount state, ignition state and the like to control the ECU will be.

Here, the part related to the driving performance of the performance of the vehicle is greatly affected by the performance of the tire, that is, the performance of the wheel, which is a part in direct contact with the road surface.

In other words, the wheel must support the entire weight of the vehicle and maintain sufficient traction with the road surface while enduring the torque during driving and braking, the impact from the road surface, the centrifugal force during turning, and the lateral force when the car is tilted. do.

The wheel is classified into a wheel with a tube and a wheel without a tube, and tubeless tires, ie, tubeless tires, which have excellent stability against heat and excellent heat dissipation, are used.

As shown in FIG. 6, the hub support part 50 is coupled to the hub H, and the rim 52 is welded to the hub support part 50 and the tire 51 is coupled to the outside. It is.

The wheel as described above is firmly coupled to the rim 52 when the tire T is filled with sufficient air to prevent the leakage of air. When the vehicle is driven, the impact from the road surface and the lateral pressure due to the turning The back is delivered to the tire T.

In addition, even in the case of a small passenger car, one ton is higher, and the tire T is worn while the total weight of the vehicle is concentrated on the tire T. If the tire (T) is worn out, you should check the degree through a tread mark or the like and replace the tire (T) at an appropriate time. However, the tread mark is difficult for the general public to check, and when the tire is worn out, the driver does not know this, and when driving at high speed, the pressure at high speed is generated much higher than at low speed, and the tire is ruptured, thereby causing the vehicle to overturn. There is a problem.

That is, if one tire is ruptured, the portion is lower than the unruptured portion, and thus the position of the vehicle becomes unstable. If the tire is ruptured at high speed, the vehicle is overturned.

Accordingly, an object of the present invention is to provide a tire pressure maintaining apparatus capable of preventing the vehicle from overturning by preventing the vehicle from tilting even when the tire is ruptured at high speed.

In order to achieve the above object, the present invention provides a sensing unit provided to detect a pressure drop due to a rupture of a tire between a flat portion formed outside of the rim, that is, between the rim and the tire, and the inner surface of the rim and the tire; A striking means connected to one sensing means to eject the air of the tank to the tire, and a storage means coupled to the tank to draw the high pressure air inside the tank to the outside by the striking means and storing the high pressure air. It features.

Hereinafter, with reference to the accompanying drawings, a detailed embodiment of the present invention will be described.

1, 2 and 3 are cross-sectional views, exploded perspective views and plan views showing the installation state of the tire pressure maintaining device according to the present invention, the flat portion (1) formed on the outside of the rim 52, the rim Sensing means provided between the 52 and the inner surface of the tire T to detect a pressure drop due to the tear of the tire T, and is connected to the sensing means to supply the high pressure air inside the tank 2 to the tire T. The striking means which blows out, and the storage means which couple | bonds with the tank 2 so that the high pressure air in the tank 2 may be taken out by the said striking means to the outside is comprised.

In particular, the above-mentioned storage means are used not only because it is difficult to let the high pressure air out of the tank 2 directly through the striking means, but also because it is difficult to check the high pressure air.

The sensing means is fixed to the flat portion 1 by the bracket 3 and the cylinder 5 has a vent hole 4 formed on one side thereof, and the cylinder 5 is built in the cylinder 5 to make a stroke according to the pressure change. It consists of a piston 7 which generates and protrudes a piston rod 6 out of the cylinder 5.

In addition, the striking means is connected to the piston rod 6, the first link member 10 is supported by the first hinge 8 of the rim 52 and the first locking groove 9 is formed on one side And, the projection 11 is formed on one side so as to be limited to the first engaging groove 9 of the first link member 10 and the second engaging groove 12 is formed on the opposite side and the second hinge 13 The second link member 14 and the projection 15 is formed on one side so as to be limited to the second locking groove 12 is formed on the one side and the impact portion 16 for opening and closing the storage means on the other side is formed It consists of the 3rd link member 18 supported by the 3 hinge 17. As shown in FIG.

Of course, at one end of the second and third link members 14 and 18, when the first and second locking grooves 9 and 13 are released, the striking part 16 may strike the storage means. A spring 19 for applying force to the three link members 14, 18 is connected between the second and third link members 14, 18 and the rim 52.

And the storage means is coupled to the tip of the tank (2), which is screwed to the tip of the tank (2) as shown in FIG. Opening / closing which is formed at a contact position between the storage member 21 and the storage member 21 formed with the puncturing nozzle 20, that is, the impact portion 16, and is opened and closed by the pressure of the impact portion 16. It consists of means.

Here, the perforated nozzle is formed with a cutout 20 to reduce the resistance at the nozzle portion when the high pressure air is ejected from the tank 2 so that the high pressure air can fill the tire in a faster time.

In particular, one side of the storage member 21 is provided with a pressure measuring nozzle 22 protruding out of the rim 52 to observe the amount of high-pressure air stored in the tank 2 and the storage member 21. The opening / closing means described above is a hole 23 formed at the contact position of the striking portion 16 and a sealing member inserted into the hole 23 to be in contact with the striking portion 16 and having a guide rod 24 formed thereon. (25), a guide (26) formed in the storage member (21) such that the guide rod (24) of the sealing member (25) is inserted and slides between the guide (26) and the sealing member (25). It consists of the spring 27 inserted in the inside, and the sealing means for holding the sealing between the sealing member 25 and the storage member 21 mentioned above.

Here, the sealing means is a projection 28 protruding around the hole 23 of the storage member 21, and the groove 29 formed in the sealing member 25 so that the projection 28 can be inserted; And a seal member 30 interposed between the groove 29 and the protrusion 28.

Of course, the pressure measuring nozzle 22 is a simple valve in which the air inside leaks when the cap 31 is removed by hand.

When explaining the operation and effect of the present invention as described above, the pressure inside the tire (T) is rapidly dropped when the tire (T) ruptures at high speed while the vehicle is running.

That is, in the case of a small passenger car, when the pressure inside the tire T, which is 1.7 to 2.1 kg / cm 3, is rapidly dissipated, air flows out through the vent hole 4 so that the pressure in the cylinder 5 drops rapidly.

Of course, before the tire T bursts, the force of the spring 19 and the pressure inside the tire T are balanced so that the piston 7 inside the cylinder 5 maintains a constant position.

When the pressure inside the cylinder 5 drops sharply, as shown in FIG. 5, the piston 7 moves rapidly in the direction of the vent hole 4 and the first link member 10 connected to the piston rod 6. Is rotated clockwise about the first hinge (8).

When the first link member 10 is rotated in the clockwise direction, the first catching groove 9 releases the protrusion 11 of the second link member 14, thereby providing a spring 19 connected to the second link member 14. The second link member 14 is rotated counterclockwise about the second hinge 13.

When the second link member 14 rotates in the counterclockwise direction, the protrusions 15 of the third link member 18, which are limited to the second locking grooves 12, are released, and the spring 19 is connected to the third hinge 17. The third link member 18 is rotated in the clockwise direction.

When the third link member 18 is rotated in the clockwise direction, the striking portion 16 formed at the tip of the third link member 18 strikes the sealing member 25 by a spring force and presses the storage member 21. ) Is pushed into the inner side.

At this time, the sealing member 25 is inside the storage member 21 because the sealing inside the tank 2 is broken by the puncturing nozzle 20 and the high pressure air is filled in the inside of the storage member 21. When it is pushed in, the high pressure air is blown out rapidly.

That is, as soon as the tire T is ruptured, the high pressure air is ejected from the storage member 21 into the tire T, thereby filling the tire T by filling the inside of the tire T as much as the air leaked from the tire T to the outside. Do not crush.

Here, since the cutout 20 'is formed in the above-described puncturing nozzle 20, the substantial diameter from which the high pressure air is ejected is increased, and the high pressure air is filled in the tire T more quickly.

If the tire T is not crushed, the vehicle body does not tilt, and the driver detects the tear of the tire T and immediately places the vehicle in a safe place to prevent the vehicle from overturning.

Of course, the high pressure air is supplied to the tire T only for a short time when the tire is ruptured, so the driver must evacuate the vehicle in a short time.

Repair of the ruptured part after evacuation of the vehicle or removal of the ruptured tire T, separating the tank 2 from the storage member 21, and replacing with a new tank 2, preparation of the spare tire is completed.

Here, in order for the driver to directly check the tank high pressure air of the mounted tire T, the cap 31 of the pressure measuring nozzle 22 protruding outward of the rim 52 is removed, and then the pressure is pressed to check the leakage state of the high pressure air. You can check.

In particular, when the colored gas is filled in the tank 2 with the colored gas such that the high pressure air has its own color, visual observation through the pressure measuring nozzle 22 is easier.

Here, when the high pressure air of the tank (2) is ejected into the tire (T) without bursting the tire (T), the air is blown out through a safety valve (not shown) in which the air is ejected to the outside when the pressure (T) is higher than a predetermined pressure. By discharging, the tear of the tire T can be prevented.

As described above, the present invention has an advantage of providing a high-pressure air to the tire quickly when the tire is ruptured by installing a tank, a hitting means and a storage means between the tire and the rim to prevent the vehicle overturning accident due to the tire rupture.

Claims (8)

The outer surface of the rim 52, that is, between the flat portion 1 formed between the rim 52 and the tire T, and the rupture of the tire T between the rim 52 and the inner surface of the tire T, Sensing means provided for sensing a pressure drop, striking means connected to the sensing means to blow air of the tank 2 to the tire T, and high pressure air inside the tank T by the striking means. The tire pressure maintaining device, characterized in that configured as a storage means for storing the high pressure air is coupled to the tank (T) to withdraw the outside. According to claim 1, wherein the sensing means is fixed to the flat portion (1) by the bracket (3) and the cylinder (5) having a vent hole (4) formed on one side, and the pressure change inherent in the cylinder (5) Tire pressure generating device, characterized in that it consists of a piston (7) generating a stroke in accordance with the piston rod (6) protruding out of the cylinder (5). The first link member (1) according to claim 1, wherein the striking means is connected to the piston rod (6) and is supported by the first hinge (8) of the rim (52) and has a first catching groove (9) formed at one side thereof. 10) and the projection 11 is formed on one side so as to be limited to the first locking groove 9 of the first link member 10, and the second locking groove 12 is formed on the opposite side and the second hinge The second link member 14 supported by the 13 and the projection 15 is formed on one side so as to be limited to the second locking groove 12 and the striking portion 16 for opening and closing the storage means on the other side. And the third link member 18 supported by the third hinge 17 and the second and third links 14 and 18 and the rim 52 when the restriction of the first and second locking grooves 9 and 12 is released. And a spring (19) provided between the springs (19) to force the second and third link members (14,18) to strike the storage means. The storage means (21) according to claim 1, wherein the storage means is screwed to the front end of the tank (2) and formed with a puncture nozzle (20) formed therein so as to release the sealing of the tank (2) at the joining site. Tire pressure holding device, characterized in that formed on one side of the storage member (21), that is, the contact position of the striking portion (16) is opened and closed means opened and closed by the pressure of the striking portion (16). The pressure measuring nozzle (22) according to claim 4, wherein one side of the storage member (21) protrudes outwardly of the rim (52) to observe the amount of high pressure air stored in the tank (2) and the storage member (21). Tire pressure maintaining device, characterized in that the configuration by installing). The sealing means according to claim 4, wherein the opening and closing means is a hole (23) formed at the contact position of the striking portion (16), a seal inserted into the hole (23) and in contact with the striking portion (16) and a guide rod (24) formed. The member 25, the guide 26 formed in the storage member 21 so that the guide rod 24 of the sealing member 25 is inserted and slides, and the guide 26 and the sealing member 25 A tire pressure holding device, characterized in that it comprises a spring (27) inserted therebetween and sealing means for holding a seal between the sealing member (25) and the storage member (21). 5. The tire pressure according to claim 4, wherein a cutout 20 ′ is formed in the punching nozzle 20 so as to speed up the ejection speed when the high pressure air is blown out through the punching nozzle 20. Retaining device. 7. The sealing means according to claim 6, wherein the sealing means includes a projection (28) protruding around the hole (23) of the storage member (21) and a groove (29) formed in the sealing member (25) so that the projection (28) can be inserted. ) And a seal member (30) interposed between the groove (29) and the projection (28).