RU2261187C2 - Method to protect automobile and pedestrian in case of road accident - Google Patents

Abstract

FIELD: automotive industry; safety systems.

SUBSTANCE: according to proposed method, automobile is equipped with additional automatically extending shock-absorbing bumper located at level of automobile footsteps. In case of emergency situation during lapse of time from beginning of emergency braking to moment of bumping into obstacle, additional bumper is extended towards obstacle and cushions the shock. Moreover, bumper is furnished with air bag commensurable with height of adult and length of bumper. If automobile collides with pedestrian and additional bumper comes in contact with upper or lower extremities of pedestrian, air bag is filled with gas. Pedestrian falls onto hood, thus tilting the air bag which sticks to hood by its middle space. Under action of shock, pressure in middle space rises and gas passes into side spaces, thus increasing their volume. Side spaces, being filled with gas, enclose pedestrian and hold him preventing high falling onto road.

EFFECT: saving of pedestrian and preventing damage to automobile in case of road accident.

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Description

The invention relates to the automotive industry, and in particular to a car security system, and can be used to save the life of a driver and a pedestrian, as well as to prevent the destruction of a passenger car, a truck without a hood and a bus when they hit an obstacle.

Of particular danger are the cabless cabs of trucks and buses. The front “wall” of the cab with glass is poor protection for the driver and his companion. She leaves no chance to survive a gaping pedestrian.

The following approach to solving these problems is proposed.

To do this, it is necessary to equip the vehicle or bus security system with an additional system that “mitigates” the impact on the obstacle and saves the pedestrian when the car hits him.

The technical result is achieved in that the main structural elements of the automatically extendable shock-absorbing bumper are shock absorbers. The rear of this design is connected to the side members of the car, and the front is located at the bottom of the front main bumper, at the threshold of the car.

A method of protecting a car, bus and pedestrian in a car accident is as follows.

In the event of an extreme traffic situation and anticipating a collision with an obstacle, the driver sharply and with effort presses the brake pedal. It is with such emergency braking that the extension of the additional bumper takes place in the “working” position.

Equipping a vehicle with a shock-absorbing bumper located at the threshold of a car is especially important for saving a pedestrian.

In the case of a car hitting a pedestrian, when the extended bumper touches its lower limbs, below the knee joint, airbags are filled with gas, commensurate with the height of an adult and the length of the bumper. The pillow (mattress) is made in such a way that it has three equal air longitudinal cavities. Two lateral connected to the middle cavity through direct valves. The middle cavity has a self-adhesive side that is facing towards the car, and the two side ones have self-adhesive strips at the edges, facing the pedestrian.

A pedestrian hit by a car falls on the hood, tilting the airbag, which is glued to the hood with the middle cavity of the pillow. In it, from the impact of the pedestrian’s body, the pressure increases (the impact “softens”), direct valves open, and the gas passes into the side cavities, increasing them in volume. Filled with gas from the middle cavity, the side cavities “wrap around” the pedestrian, touch their self-adhesive strips and hold him in their “arms”, preventing him from falling onto the roadway.

Approximately the same process occurs when hitting an obstacle or a pedestrian with a hoodless truck and bus.

It should be noted that this method cannot be a panacea and ensure safety at all high-speed modes. However, at moderate speeds it will significantly reduce the number of damaged cars and injured pedestrians.

Claims (4)

1. A method of protecting a car and a pedestrian in a car accident, including an additional shock-absorbing bumper, automatically pushing toward an obstacle at the time of emergency braking, characterized in that the bumper is equipped with single-acting shock absorbers or telescopic pneumatic cylinders located at the threshold of the car, an airbag commensurate with the length bumpers and the height of an adult, revealing at the moment the bumper touches the pedestrian, made divided into three longitudinal cavities, of which the lateral ones are connected to the middle cavity through valves, which allow air to flow from the middle cavity to the lateral. 2. The method according to claim 1, characterized in that the middle cavity of the airbag has a self-adhesive surface facing the side of the car. 3. The method according to claim 1, characterized in that under pressure on the middle cavity of the airbag by a fallen pedestrian, air from it passes through valves that allow air to flow into its side cavities, increasing them in volume. 4. The method according to claim 3, characterized in that the side cavities of the airbag increase in volume and touch their self-adhesive strips to hold the pedestrian on the airbag, preventing it from falling onto the roadway.