RU2345193C1 - Road buffer - Google Patents

Abstract

FIELD: construction, road construction.

SUBSTANCE: invention deals with protecting devices intended for deceleration, correction or direction of vehicle motion. The road buffer has apertures arranged in the rear wall (lower section) and in the lateral walls (on the rear wall side) and the lower base being represented by a bearing surface along the front and the lateral walls and a surface spanning over the apertures which results in formation of a niche no less than 150 mm high open from the bottom and on the side of the rear wall.

EFFECT: preventing generation of a vehicle motion vertical component at the vehicle's collision with a road buffer.

8 cl, 4 dwg

Description

The invention relates to safety devices for slowing down, changing and driving direction of vehicles, intended for visual orientation of vehicle drivers, separation of traffic flows, etc., and can be installed in front of forks, in front of sharp corners of road fences, in places of separation traffic flows, in front of the piers of bridges and tunnels, as well as on other dangerous sections of roads.

State of the art

Known separation barrier for roads, consisting of concrete stones with right angles of contact, while equipped with a separation strip, and the gap formed by two rows of concrete stones of the separation strip is filled with sand or porous material (RF patent No. 2291243, E01F 15/00, 2007 ( analogue)).

A road fence is known that contains a massive fixed block in the form of a thick-walled vertically mounted plate, a telescopic connection and horizontally located containers fixed in a fixed block with a damping “working medium”, a freely moving movable block made in the form of a massive trolley with piston rods mounted on it (patent RF №2298061, 6 E01F 15/04, 2007 (analogue)).

The closest in technical essence to the claimed is a road axial buffer containing a housing made in the form of made of polyethylene, intended for rotational molding, closed on all sides of the tank with a rounded upper base, with a convex front wall, with a concave rear wall and with a flat lower base, while on the front wall there is a vertical marking of a retroreflective film, the lower base is corrugated. In the upper base of the buffer body, a loading hole is made for filling it with a liquid, for example water, or a damping composition, for example in the form of rubber crumb (technical specifications TU 5217-015-42285867-02, 2002 (prototype)).

A disadvantage of the design of the known road buffer is that when the car hits the road buffer, the buffer is deformed in the longitudinal direction at the level of the car bumper and then the buffer is destroyed. In this case, the part of the buffer damping composition located above the bumper flies up, and the lower part of the damping composition is clamped between the buffer body and the bottom of the car. Due to the short contact time, the damping composition at the bottom does not have time to crumble or fall out of the remnants of the buffer casing, resulting in a “slide” effect, which in turn leads to a vertical component of the movement in the car. Usually 2-4 buffers are set sequentially one after another. After the first buffer has collapsed, the car, which already has a vertical component of movement, runs into the second buffer. The effect of the "slide" is enhanced, the car is thrown from the canvas.

SUMMARY OF THE INVENTION

When creating the invention, the problem was solved to ensure the efficiency of the road buffer when hitting a car.

The technical result is the elimination of the vertical component of the movement of the car when it collides with the road buffer.

The specified technical result is achieved due to the fact that in the road buffer containing the housing, made in the form of a container closed on all sides with an upper base, with a front wall, with side and rear walls and with a lower base, according to the invention from the bottom in the rear wall and in the side openings are made on the walls on the side of the rear wall, and the lower base is made in the form of a support plane along the side and front walls and the surface overlapping the openings with the formation of a niche not open at the bottom and from the side of the rear wall less than 150 mm.

Moreover, according to the invention, the housing is made of polyethylene intended for rotational molding.

Moreover, according to the invention, the upper base is rounded, the front wall is convex, and the rear wall is concave.

Moreover, according to the invention, a vertical marking of a retroreflective film is placed on the front wall of the housing.

Moreover, according to the invention, a loading hole is made in the upper part of the rear wall of the housing for filling it with a damping composition.

Moreover, according to the invention, the loading hole is made in the form of a pocket closed by a petal, mounted with the possibility of bending and returning to its original position.

Moreover, according to the invention, rubber crumb is used as a damping composition.

Moreover, according to the invention, a liquid is used as a damping composition.

List of drawings

The invention is illustrated by the description of a specific example of its implementation and the accompanying drawings, where:

figure 1 shows a road buffer, a General view;

figure 2 is a left view (the front wall with a retroreflective film and the relative position of the niche and side walls);

figure 3 is a right view (relative position of the niche and the rear and side walls);

4 is a bottom view (the plane of the buffer support along the side and front walls).

Information confirming the possibility of carrying out the invention

The road buffer contains a housing 1 made in the form of a container closed on all sides with an upper base 2, with a front wall 3, with side 4 and rear 5 walls and with a lower base 6 (Fig. 1).

The housing 1 may be made of polyethylene intended for rotational molding, while the wall thickness of the housing 1 may be, for example, 6 mm.

The upper base 2 of the housing can be made rounded, smoothly connected to the front wall 3, which can be made, for example, convex.

In the middle of the front wall 3 there is a retroreflective film 7 with an image, for example, of a vertical marking 2.2.2 in accordance with GOST R 51256-99 or with an image of a road sign in accordance with GOST 10807 to improve the visibility of the buffer at night and mark the obstacle (Fig. 2).

Each of the side walls 4 consists of a section 8 parallel to the plane of symmetry 9 of the road buffer, and from a section 10 located at an angle to the plane of symmetry 9, which is joined to the concave back wall 5 (Figs. 1 and 3).

The rear wall 5 at the top is joined with the upper base 2 of the housing 1. At the bottom in the rear wall 5 there is an opening 11 open from the bottom (Fig. 4). The radius of curvature of the rear wall 5 can be selected so that the rear wall 5 of the front buffer and the front wall 3 of the subsequent buffer are joined, if there is such a need to put several buffers one after another.

In each of the sections 10 of the side walls 4 from the side of the rear wall 5, an opening 12 is made, open from the side of the rear wall 5 and from the bottom (Fig. 1).

Thus, we can say that from the bottom in the rear wall 5 and in the side walls 4 from the side of the rear wall 5, openings 11 and 12 are made.

The lower base 6 consists of, for example, a curved surface 14 overlapping the openings 11 and 12, as a result of which a niche 13 is opened, open from below and from the side of the rear wall 5, and from the support plane 15 along the side 4 and front 3 walls.

Thus, we can say that the lower base 6 is made in the form of a support plane 15 along the side 4 and front 3 of the walls and surface 14, overlapping the openings 11 and 12 with the formation of a niche 13 with a height of at least 150 mm open from below and from the side of the rear wall 5.

As the studies showed, the height of the niche 13 in its central part between the surface 14 and the support plane 15 should be at least 150 mm (Fig. 3).

The housing of the road buffer is made possible to fill with a damping composition, for which purpose a loading hole 16 is made in the upper part of the rear wall of the housing 1 to fill it with a damping composition. The loading hole can be made in the form of a pocket, for example, in the form of a cut triangular hole closed by the naturally formed petal 16, which can be bent if necessary in order to fill the damping composition or fill with water, and then return the sheet 16 to its original position. As a damping composition, crumb rubber, liquid, for example water, etc. can be used.

The device operates as follows.

The road buffer is designed for installation in hazardous places in front of an obstacle. Depending on the hazard of the site, several road buffers can be installed to increase the cushioning ability. In this case, the front wall of each subsequent road buffer is in contact with the rear wall of the previous buffer.

The road buffers installed in front of the obstacle are filled, for example, by 70%, with a damping compound, for example rubber crumb, or water.

The road buffer is ready for use.

As tests showed when a car hit a road buffer of the claimed design, the damping composition or water is distributed inside the buffer body so that the car remains wheels on the roadway, i.e. the “slide” effect is excluded, which indicates that the technical result — the elimination of the occurrence of the vertical component of the vehicle’s movement when it hits the road buffer — has been achieved.

If necessary, move the road buffer to another place, pour the damping composition or pour water. The buffer is loaded into the vehicle and transported.

Claims (8)

1. A road buffer containing a housing made in the form of a container closed on all sides with an upper base, with a front wall, with side and rear walls and with a lower base, characterized in that the bottom in the rear wall and in the side walls from the back wall openings are made, and the lower base is made in the form of a support plane along the side and front walls and a surface that overlaps the openings with the formation of a niche at least 150 mm high open from below and from the back wall side. 2. The road buffer according to claim 1, characterized in that the casing is made of polyethylene intended for rotational molding. 3. The road buffer according to claim 1, characterized in that the upper base is rounded, the front wall is convex, and the rear wall is concave. 4. The road buffer according to claim 1, characterized in that on the front wall of the housing there is a vertical marking made of retroreflective film. 5. The road buffer according to claim 1, characterized in that a loading hole is made in the upper part of the rear wall of the housing to fill it with a damping composition. 6. The road buffer according to claim 1, characterized in that the loading hole is made in the form of a pocket closed by a petal, mounted with the possibility of bending and returning to its original position. 7. The road buffer according to claim 5, characterized in that crumb rubber is used as the damping composition. 8. The road buffer according to claim 5, characterized in that a liquid is used as a damping composition.

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