Hyundai Motor Company

Dong Hak Kim

Hyun Kyung Kim

Seok Jae Park

Dong Eun Cha

Seung Mok Lee

Phil Jung Jeong

A tubular back beam assembly may include a plurality of main members, each of which is formed by cold rolling and hot stamping and the plurality of main members may be coupled to form a vertically stacked structure with flat portions coupled in a surface contact fashion, or the tubular back beam assembly may include a main member and at least one support member that are directly coupled to form a vertically stacked structure.

Tubular back beam assembly for vehicle and method of manufacturing the same

A tubular back beam assembly may include a plurality of main members, each of which is formed by cold rolling and hot stamping and the plurality of main members may be coupled to form a vertically stacked structure with flat portions coupled in a surface contact fashion or, the tubular back beam assembly may include a main member and at least one support member that are directly coupled to form a vertically stacked structure.

A crash box for a vehicle may include a first plate having a middle end formed with a cylindrical first flange protruding in one direction, a second plate having a middle end formed with a cylindrical second flange protruding in another direction, a pipe having each of both ends coupled to the corresponding first and second flanges respectively, and an impact absorbing device configured to absorb an impact while the first flange and the pipe matched with each other through the impact absorbing device may be shear-deformed at a time of crash by pressing an overlapping portion of the first flange and one end of the pipe to deform shapes of a pressed portion of the first flange and the pipe into shapes matched with each other.

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Ulsan, South Korea

Dong Hak Kim