Seat belt installation structure for rear seat of automobile

Abstract

The invention discloses an automobile rear seat safety belt installation structure, which includes a fixed bracket, a U-shaped rear floor longitudinal beam, and a rear floor. The fixed bracket includes a bracket body, and the left and right ends of the bracket body are respectively provided with U The side wall of the U-shaped rear floor longitudinal beam is welded to the left and right flanges, the lower end of the bracket body is provided with a lower flange welded to the bottom wall of the U-shaped rear floor longitudinal beam, and the upper end of the bracket body is provided with an upper flange , the upper flange is provided with a safety belt installation hole, and the installation hole position is fixedly connected with a nut for installing the safety belt; the side wall of the U-shaped rear floor longitudinal beam has a horizontal flange extending outward, and the rear The floor is welded and connected to the horizontal flange of the U-shaped rear floor longitudinal beam, and is in close contact with the upper flange of the bracket body, and a through hole is opened on the rear floor corresponding to the position of the nut. The invention ensures the rigidity and strength of the fixed point of the safety belt, and can meet the requirements of laws and regulations in the installation area of ​​the safety belt.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and in particular relates to an automobile rear seat safety belt installation structure. Background technique [0002] The fixed point of the car seat belt installation is a national mandatory regulation, so when designing the rear seat belt installation structure, the seat belt installation structure must meet the rigidity and strength requirements of the car during collision or emergency braking. [0003] Patent document CN202827460U discloses a novel rear safety belt fixed point structure, which includes a rear floor with connecting holes and a safety belt fixing reinforcement plate, the rear end of the rear floor is connected to a rear floor crossbeam, and the safety belt The longitudinal section of the fixed reinforcing plate is L-shaped, including a horizontal plate and a vertical plate. The horizontal plate is fixed on the rear floor, and the vertical plate is fixed on the rear floor b...

AI Technical Summary

Problems solved by technology

[0004] Although the installation structure of the above-mentioned safety belt is simple and has good manufacturability, due to the few connection parts with the rear floor and the rear floor crossbeam, it is easy to make the rear floor and the rear floor in the area of ​​the seat belt fixed point be damaged during a car collision and emergency braking. The crossbeam is seriously deformed. At the same time, because the solder joints connecting the rear floor of the car and the rear floor crossbeam are mainly subject to tensile stress, they are prone to cracking and failure. As a result, the rigidity and strength of the seat belt fixing point area on the rear floor cannot meet the regulatory requirements.

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