RU79501U1 - SPECIAL CAR BUMPER - Google Patents

Abstract

The bumper for a special vehicle relates to transport equipment, namely to vehicle protection devices that absorb shock energy in a collision with other vehicles, which reduces the destructive load during frontal and side impacts. The proposed utility model is reliable, simple in design and has the ability to be used on all types of special vehicles. This goal is achieved in that the bumper is made of 3 parts pivotally connected to each other, while the middle part is axially spring loaded and provided with guides rigidly connected to it, which pass through bushings fixed in the frame, and the guides pass through leaf springs, mounted on the frame and in contact with the pivotally mounted side parts of the bumper.

Description

The bumper for a special vehicle (hereinafter referred to as the bumper) refers to transport equipment, namely, vehicle protection devices that absorb shock energy in a collision with other vehicles, which reduces the destructive load during frontal and side impacts.

A technical solution is known according to the copyright certificate No. 21116899 for fencing the car during parking from mechanical damage.

However, such a technical solution is applicable only to standing cars and is not applicable during its operation.

There is also a technical solution for installing a hard bumper type kanguring according to copyright certificate No. 2126334.

However, this technical solution does not guarantee the preservation of the frame and the car body in a collision, since the stiffness of all parts and their connection are approximately the same and their destruction is the same.

Also known are damping devices mounted in front of a car with an air cushion system, copyright certificate No. 34911.

However, this technical solution is difficult in design and leads to significant increases in size, which makes the car less maneuverable.

The closest technical solution is the bumper hydraulic shock absorber according to copyright certificate No. 2038233.

However, such a technical solution is difficult in design, in the maintenance of the system, the inability to protect against side impacts.

The purpose of creating a utility model is to reduce destructive loads in side and frontal collisions, simplify its design, and reduce its overall dimensions.

This goal is achieved in that the bumper is made of 3 parts pivotally connected to each other, while the middle part is axially spring loaded and provided with guides rigidly connected to it, which pass through bushings fixed in the frame, and the guides pass through leaf springs, mounted on the frame and in contact with the pivotally mounted side parts of the bumper.

The invention is illustrated by drawings, where:

Figure 1 - front bumper (top view).

Figure 2 - front bumper (view A).

Figure 3 - design of the front bumper.

Figure 4 - rear bumper.

Figure 5 - design of the rear bumper.

Figure 6 is a General view.

The front bumper of a special vehicle B consists of a middle part 1, a kanging 2 rigidly fixed on it, side parts 3 pivotally connected to it, guides 4, rigidly connected to the middle part 1, axially spring-loaded with springs 5. The guides 4 pass through the fixing bars 6, a leaf spring 7 and a guide sleeve fixed in a frame. The side parts 3, pivotally connected to the middle part 1, are rigidly in contact with it, forming a single structure under the action of leaf springs 7 (see Figs. 1-3).

The design of the rear bumper B is similar, without the installation of kanguring (see figure 4, 5).

The bumper works as follows:

In a frontal impact, the load is absorbed by the middle part of the bumper 1 and absorbs the impact with the help of springs 5. In addition to them, part of the shock load is perceived by the side parts of the bumper 3, which are mounted in focus with the middle part 1, and the side parts 3 are in contact with leaf springs 7, which is a single whole.

With a side impact, the load is perceived mainly by the side parts of the bumper 3, due to the stiffness of the leaf springs 7.

Since the designs of the front bumper B and the rear bumper C are identical, their installation on the frame 8 is the same (see Fig.6).

Such a technical solution makes it possible to constructively carry out the front and rear bumpers in the same design, use standardized parts for units, which ensures simplicity of construction in assembly and operation, as well as maintainability.

Claims (1)

A bumper of a special vehicle, comprising the bumper itself, kanguring on the front bumper, elements for attaching the bumper to the frame, characterized in that the bumper is made of three parts articulated between each other, the middle part being spring-loaded in the axial direction and provided with guides rigidly connected to it, which pass through bushings fixed in the frame, the guides passing through leaf springs mounted on the frame and in contact with the pivotally fixed side parts of the bumper.