Patent ID: 9340172
Filing Date: 2016-05-17
CPC Classification: B21D,B60D,B60R,Y10T

Claim Text:
1. A tubular back beam assembly for a vehicle comprising: a main back beam formed in a tubular shape having substantially a quadrangular cross section; a support back beam formed to have a C-shaped cross section with an opening extended in a width direction of the vehicle; a pair of crash boxes whose front ends are coupled to rear surfaces of the main back beam and the support back beam at both ends of the main back beam and the support back beam and whose rear ends are coupled to members of a vehicle body, wherein vertical faces of the front ends of the crash boxes are coupled to the main back beam and the support back beam; and wherein one portion of the main back beam is inserted into the opening of the support back beam to close the opening of the support back beam and form a vertically stacked structure along with the support back beam.