RU180001U1 - FRONT BUMPER FOR PASSENGER CAR - Google Patents

Abstract

The utility model relates to the field of transport engineering, namely to automobile bumpers. Front bumper for a passenger car, comprising an outer panel and an inner bumper panel made of polypropylene, where the inner panel is rigidly connected to the outer panel along its perimeter by means of ultrasonic welding points with the formation of two horizontal belts having a box section, and above, on the side inner sides the outer panel, there is a bumper fixing bracket made of polypropylene in the form of a curved plate, where in the forming space there is a mounting bolt with free running time. The technical result is aimed at simplifying the design itself and its installation, as well as at increasing the stiffness of the bumper while maintaining energy absorbing properties.

Description

The utility model relates to the field of transport engineering, namely to automobile bumpers.

The prior art designs of bumpers are described in the patents of the Russian Federation No. 2106988, US No. 4492398, which contain the front panel and the associated inner panel made of metal, which leads to the weighting of the structure and its cost.

The closest technical solution to the claimed design is the bumper of the vehicle (prototype - RF patent No. 32057, class B60R 19/02, publication date 09/10/2003), containing the outer and inner bumper panels made of polypropylene, where the inner panel is complex spatial shape and is attached to the outer panel with the lower part by means of flange nuts with a screw and washer, which is quite laborious in the manufacture of the inner panel, as well as in the installation and dismantling of the bumper, and leads to an increase in labor input and material manufacturing aloemkosti.

The objective of the utility model is to simplify the design itself and its installation, which leads to a simplification of manufacturability and a decrease in the complexity of manufacturing and cost reduction, and is also aimed at increasing the stiffness of the bumper while maintaining energy-absorbing properties.

To solve this problem, we propose a front bumper for a car containing an outer panel and an inner bumper panel made of polypropylene and interconnected, where the inner panel is rigidly connected to the outer panel along its perimeter by means of ultrasonic welding points with the formation of two horizontal belts with a box section moreover, on top, on the side inner sides of the outer panel, there is a bumper fixing bracket made of polypropylene in the form of a curved plate Steen wherein a forming space located fixing bolt to freely move.

Comparison of the claimed technical solution with the prior art in scientific, technical and patent documentation as of the priority date in the main and related sections shows that the set of essential features of the claimed solution was not known - therefore, it meets the patentability condition of “novelty”.

The proposed technical solution is industrially applicable, because can be manufactured industrially, efficiently, reproducibly, therefore, meets the patentability condition “industrial applicability”.

The essence of the technical solution is illustrated in the drawings.

FIG. 1 - diagram of the bumper;

FIG. 2 - view of the inner panel;

FIG. 3 - side view of the bumper;

FIG. 4 - section aa;

FIG. 5 - section BB.

The front bumper for a passenger car is an outer panel (1) and an inner panel (2) (Fig. 1) made of polypropylene by injection molding, which differs significantly from most bumpers made by stamping. This method allows you to avoid sharp breakdowns during an accident, since the bumper made of polypropylene during injection molding comes out more plastic.

The inner panel (2) is located across the width of the outer panel (1) along the entire length of the front of the outer panel (1) and captures the areas of the front lights between which the inner panel (2) has a horizontal U-shaped protrusion (3) with a bend (4) along the lower edge for ease of fixation, directed inside the bumper, where stiffeners (5) are located on the vertical wall of the protrusion (3). On the inner panel (2) in the area of the front lights, around a round hole for them, conical protrusions (6) are made for fixing and positioning the lights. To simplify the design and its mounting on the body, the inner panel is welded along its perimeter to the outer panel by means of points (7) of ultrasonic welding, with the formation of two horizontal belts (8), each of which has a box section, which together positively affects the stiffness of the bumper in the front impact zone (Fig. 4), as well as in the headlights area.

Above, inside the sides of the outer panel (1), brackets (9) are installed to fix the bumper on the body while fixing it to the wing. The brackets (9) are made in the form of a plate curved in the central part, welded around the perimeter to the outer panel (1) also by means of ultrasonic welding points (10), and in the forming space there is a bolt (11) with the threaded part (12) protruding outward (Fig. . 5). The bolt (11) is made with the possibility of free travel for better positioning of the bumper when mounted on a body. This design allows you to increase rigidity in the area of the bumper-wing-body, as well as simplify the installation and dismantling of the bumper.

This design is easy to manufacture, securely mounted on the body and has sufficient rigidity in the impact areas.

Claims (3)

1. Front bumper for a passenger car, comprising interconnected outer panel and inner bumper panel made of polypropylene, characterized in that the inner panel is rigidly connected to the outer panel along its perimeter by means of ultrasonic welding points with the formation of two horizontal belts with a box section moreover, on top, on the side inner sides of the outer panel, there is a bumper fixing bracket made of polypropylene in the form of a curved plate, where in the generatrix a mounting bolt is located with the possibility of free play. 2. The front bumper for a passenger car according to claim 1, characterized in that the inner panel in the central part has a horizontal U-shaped protrusion with a bend on the lower edge and vertical stiffeners. 3. The front bumper for a passenger car according to claim 1, characterized in that the bracket is connected to the panel by means of ultrasonic welding points.

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