SU1382693A1 - Bumper - Google Patents

Abstract

This invention relates to vehicles and, in particular, to their bumpers. The goal is a new energy intensity of the bumper. The bumper contains an elastomeric central 1, two lateral 2 and two intermediate 6 sections mounted on a metal support 3. Moreover, on the side sections 2, a comb 8 with teeth are installed, and the central section 1 is enclosed in a casing 11 equipped with stops 13. With oblique B and lateral shock, lateral section 2 is compressed and simultaneously shifted to the center of the bumper, comb 8, engages with vertical combs 7, stretches intermediate section 6. Sections 2 and 6 work on stretching and shearing, extinguishing the impact energy. With frontal impact A, central e; 1-dimensional dimensional section 1 together with casing 11 is compressed, while stop 13 acts through plate 9 on comb 8, which compresses section 6. Moving plate 9 causes partial stretching of side sections 2. At frontal impact B the end of the side section 2 with the plate 9 and the comb 8 moves to the metal support 3 and at the same time in the direction of section 1, the teeth of the comb 8, coupled with the vertical ribs 7 of the intermediate section 6, compress the latter in the transverse m direction and stretch in the longitudinal direction swallowed up conductive impact energy. After removal, the bumper regains its original shape. 1 hp f-ly, 5 ill. I (/ С

Description

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This invention relates to vehicles, in particular to their bumpers.

The purpose of the invention is to increase the energy intensity of the bumper.

FIG. 1 shows a bumper, general view; in fig. 2 - bumper, longitudinal section; in fig. 3 - the central part of the bumper; in fig. 4 - additional wedge-shaped section; in fig. 5 - side section.

The bumper contains a central section 1 made of elastomer material and two arcuate lateral sections 2. Sections 1 and 2 are assembled on a metal support 3 attached to the car body by means of side members 4 and props 5. There are spacings between section 1 and sections 2. - foamy elastomeric material intermediate wedge-shaped sections 6 mounted on a metal support 3. On the front side of each section 6 there are vertical fins 7, scenes with teeth of combs 8. Each comb 8 is fastened with a plate 9 by means of Each section 2. The thinning part of each wedge |) azny lIp (Jmejyt () of section 6 faces toward section 2 and is located between its 11 °; | kami 10 opposite the performed speed of it. The projectile end of the section 6 v. Places with a comb 8 are located inside the casing 11, in which is a swollen-dimensional part of the center-bent section I. On the inner side of the casing 11 there is an L-shaped plate 12, the smaller shelf of which is in contact with the central section I, and the large emphasis 13. Between the ends of sections 1 and 2 is located emphasis 14, with renlenn of minutes to a metal support 3.

The bumper of the proposed design with oblique V and side G bumps works as follows.

Upon impact, the deforming forces begin to compress the elastomeric side section 2 and simultaneously shift it towards the central section 1. At the same time, the comb 8, the tooth of which engages with the vertical ribs 7, begins to move and the intermediate one begins to stretch. - figurative section 6, which, in this s |, section, works like a spring. In addition, as the patient stretches section 6, it becomes harder and, consequently, the overall rigidity of the bumper increases with a side impact. The elastomeric dimensional stretch material of sections 2 and 6 works not only for stretching and compression, but also for shifting, on which more energy is expended, which is only for compression and stretching. Thus, due to the deformation of sections 2 and 6, the energy of the bumper increases with oblique and side impact.

With frontal collisions A and B, which are the smallest of accidents according to statistics of road accidents, deforming forces can act on two ny.

Impact A is clipped onto the central section 1. In this case, the central elastomer section 1 in place with the casing 11 begins to contract. In this case, the stop 13 of the G-shaped plate 12 will act on the plate 9, the comb 8 of which is engaged with the vertical edges 7 of section 6, and section 6 begins to contract. Moving the plate 9 will cause partial stretching of the side sections 2, i.e. in this case, the side elements will partially work on shear, which will increase the energy absorbing capacity of the designed bumper for a frontal impact, which falls on the central section.

B strike frontally snaps on the side section. In this case, the end of the side arc of the shaped section 2 with the plate 9 and the comb 8 will begin to move towards the metal support 3 and at the same time towards the central section 1. The teeth of the comb 8, coupled with the vertical ribs 7 of the intermediate section 6, will begin to compress in the transverse direction and stretch in the longitudinal section 6, i.e. in this case, section 6 mainly m works for compression and partly on SD1-U. at the same time, more energy is expended than that / tko for compressing work.

Claims (2)

1. A bumper containing a metal support on which the elastomeric central and side sections are located, characterized in that, in order to increase the energy intensity of the bumper, its central part is enclosed in a casing, the inner surfaces of the side sections are bevelled towards the center and form the upper and the lower shelves, with the combs with teeth fixed at the base of the bevel, between the central and lateral sections on the metal onor ycTaHOBjieHbi, elastomeric to-tine-like intermediate sections with vertical edges on the frontal sides , Mutually imodeystvuyu1tsimi with the teeth of the comb, with the apex of the wedge-shaped section facing towards the side sections and their flanges are positioned between opposite tapered surfaces. 2. Bumper according to claim 1, characterized in that on the inner ends of the casing, L-shaped plates are installed with the possibility of contacting smaller shelves with the central elastomeric section, and large shelves are provided with stops for interaction with frontal impact through the dies with intermediate elastomeric sections bumper. Fy Fa 5