RU2309854C1 - Automobile wheel with emergency-notion pneumatic support body - Google Patents

Abstract

FIELD: transport engineering; road vehicles.

SUBSTANCE: invention relates to means providing safety of humans and loads carried by road vehicles, being essentially passive safety means. Proposed automobile wheel has emergency-motion support body made of strong elastic and airtight material in form of automobile tube and arranged in flat state under wheel tire on rim or in ring recess specially made on wheel rim under tire and rigidly secured by one side to wheel rim. Emergency-motion support body gets inflated to size of standard tire being connected through valve with device similar to that used for filling air bags of automobile. Said device is connected, in its turn, with several sensors installed on wheel rim capable of setting device into action in case of sharp air pressure drop under tire.

EFFECT: increased stability of automobile in case of breakage of wheel tire when running at high speed.

3 dwg

Description

The invention relates to means for ensuring the safety of man and the transported goods in transport, primarily automobile. The invention is a means of passive human safety in transport.

Practice shows that when the tire of the front wheel of a passenger car is destroyed at high speed, the car loses stability and the car skids. In this case, sometimes the car turns over, and sometimes it is carried out into the oncoming traffic lane, or in a ditch. There are frequent cases of injury or death to people in the car.

The purpose of the invention is to increase the stability of the vehicle during destruction during movement with a high speed tire tires.

A car wheel with an emergency driving support body is known (patent 2224662 country of publication RU, country of priority DE), selected for the prototype, consisting of a supporting body located inside the tire, which is made in the form of a shell-shaped ring element resting on the wheel rim through the ring supporting elements.

The wheel selected for the prototype has the following disadvantages:

- the diameter of a wheel with a supporting body that has lost a tire as a result of destruction, or a wheel with a deflated tire is much smaller than the diameter of the wheel in its normal condition - with a serviceable and inflated tire, respectively, when the tire is destroyed or it is depressurized on one of the wheels (especially when it comes to the front wheel of the front-wheel drive vehicle) a strong roll of the car towards the emergency wheel is inevitable and, accordingly, the vehicle skids;

- the contact point with the road at the wheel with a known supporting body in emergency condition significantly differs in size from the contact spot with the road wheel with a working and inflated tire, which will also contribute to the skidding of the vehicle;

- the traction force of a known wheel in an emergency will be significantly different from the traction force of a working tire, since, unlike a tire inflated by air, the supporting body does not have the corresponding elasticity. This factor will also contribute to skidding of the car.

The objective of the present invention is to minimize the roll of the vehicle and, accordingly, to avoid skidding during the destruction of the tire of the wheel while the vehicle is moving at high speed by urgently replacing the damaged standard tire with a similar in size and elasticity anti-emergency pneumatic tire (pneumatic support body of emergency traffic )

This is the technical result.

The technical result for the invention is achieved by the fact that in an automobile wheel with a support body for emergency traffic for a pneumatic tire mounted on a wheel rim according to the invention, the support body for emergency traffic is pneumatic and made of durable, flexible and airtight material in the form of a car chamber and is in a deflated condition under by a tire on the wheel rim, or in a ring niche specially made on the wheel rim under the tire and rigidly attached with one of its sides to the wheel two wheels, while the supporting body of the emergency movement is made with the ability to inflate when it enters air to the size of a standard tire and through a connecting valve it is connected to a device similar to the device for filling safety airbags for vehicles with gas, and this device, in turn, is connected to mounted on the wheel rim under the tire with several pressure monitoring sensors capable of activating this apparatus in case of a sharp drop in air pressure under the tire at.

The invention is illustrated by drawings.

The figure 1 shows a car wheel with a pneumatic supporting body of the emergency movement, located directly on the rim (view from the side in section):

“A” - in normal condition, “b” - in emergency condition with the tire completely destroyed.

The figure 2 shows a car wheel with a pneumatic supporting body emergency movement, located directly on the rim (side view in section), in emergency condition with a partially damaged tire.

Designations in the drawings:

- wheel rim - 1,

- tire tire (tire) - 2,

- pneumatic support body of emergency traffic - 3

- air pressure monitoring sensors that respond to a sharp decrease in pressure - 4,

- a connecting valve - a gas release valve separating the cavity of the pneumatic support body of the emergency movement from the apparatus, similar to the apparatus for filling the safety airbags of the vehicle’s safety system with gas - 5,

- transverse stretch ties (mounts to maintain the pneumatic support body of the emergency movement when folded) - 6,

- fastenings, with the help of which the pneumatic support body of the emergency movement is fixed with one of its sides to the wheel rim - 7,

- an apparatus similar to the apparatus for filling gas with safety airbags of a vehicle safety system (not shown),

The device operates as follows:

in case of accidental destruction of the tire 2 inflated by air, the air goes out and the air pressure under the tire drops sharply. Sensors 4, mounted under the tire cover on the rim of the wheel 1, reacting to a sharp decrease in air pressure, give the corresponding signal and include, by closing the circuit or otherwise located in the wheel body, or in the immediate vicinity of the wheel, an apparatus similar to the apparatus for filling the system with airbag vehicle safety (not shown). The apparatus can operate from a gas cylinder, the cavity of which is filled with compressed gas, or from a gas generating device with combustible gas-forming material. The specified apparatus through the connecting valve 5 provides quick filling with air (gas) of the pneumatic support body of the emergency movement 3, which is made in the form of a car camera, but from a more durable material. The pneumatic support body of the emergency movement is fixed on one side to the wheel rim with brackets 7. The pneumatic support body of the emergency movement from the gas (air) entering it is inflated to the size of the internal volume of the tire (if the tire is partially damaged) or to the volume of the tire when it is in good pumped condition (if tire completely destroyed). In this case, elastic ties 6, located across the rim at a certain distance from each other, are stretched.

The pneumatic supporting body of the emergency traffic must have a thickening in that part, which, when filled with air, must come into contact with the road surface. It is also advisable to make the part of the pneumatic support body in contact with the road surface in relief in order to improve adhesion to the road surface. The strength of the pneumatic support body of emergency traffic should allow the vehicle to drive in emergency mode after the destruction of the standard tire at least 50 - 75 m to a full stop, or to the exit to the side of the road and a full stop.

The emergency air support bearing body is deflated directly on the wheel rim, or, alternatively, in an annular niche specially made on the wheel rim under the tire (not shown). The pneumatic support body of the emergency movement must be rigidly fixed to one side of the wheel rim. In order to prevent loose parts of the pneumatic support body of the emergency movement during the normal movement from moving in the space under the tire, it (the pneumatic support body of the emergency movement) is pressed against the wheel rim by transverse stretch elastic ties.

If the destruction of the tire is incomplete (if a puncture or rupture of a small size occurs), then the pneumatic support body of the emergency movement, filled with air (gas), will fill the space between the wheel rim and the inner surface of the tire, thereby strengthening the tire and protecting it from complete destruction by the disk wheels, and the vehicle will protect against skidding and tipping over.

If the destruction of the tire is complete (the tire will burst, the so-called “shot” of the wheel will occur), then the pneumatic support body of the emergency movement will replace the damaged tire and also protect the vehicle from skidding and tipping over.

In order to avoid unauthorized activation of the apparatus, which ensures that the pneumatic support body of the emergency movement is filled with gas as a result of the false operation of the faulty sensor, it is advisable to install several sensors and configure the device so that it will turn on only when most sensors from the sensors installed on the wheel are triggered.

As you know, the process of filling the safety pillows of the vehicle safety system lasts 0.003 s. A similar time will be needed to fill the pneumatic support body of the emergency movement. It will take some time to trigger the pressure reduction sensors. Suppose that, taking into account the response time of the sensors, the filling time of the support body of the emergency movement will double, i.e. will be 0.006 s. During this time, a vehicle moving at a speed of 120 km per hour will travel only 0.2 m. In addition, for the indicated time, the inertia of a vehicle moving parallel to the road surface will not allow the wheel rim on which the tire collapsed to come any closer to the road surface. Accordingly, the replacement of a destroyed tire with a pneumatic emergency support body of a similar size and elasticity minimally affects the stability of the vehicle and saves it and the people inside it from damage.

Claims (1)

An automobile wheel with an emergency driving support body for a pneumatic tire mounted on a wheel rim, characterized in that the emergency driving support body is pneumatic and made of durable, flexible and airtight material in the form of an automobile chamber and is deflated under a tire on the wheel rim, or in an annular niche specially made on the wheel rim under the tire, and rigidly attached with one of its sides to the wheel rim, while the emergency support bearing body is made but with the possibility of air entering into it to inflate to the size of a standard tire and through a connecting valve it is connected to a device similar to a device for filling safety airbags of a vehicle’s safety system with gas, and this device is in turn connected to several control sensors mounted on the wheel rim under the tire pressure, capable of a sharp drop in air pressure under the tire to enable the operation of this unit.

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