Floor tunnel structure for motor vehicles

摘要

A tunnel structure arranged in the center of the floor of a passenger motor vehicle, which extends in the longitudinal direction and in which a hollow bearer is formed by tunnel edge reinforcements; at least one traverse extending over the open tunnel side and supporting drive unit parts is adapted to be threadably connected to the parallel flanges of the two tunnel edge reinforcements while bolt holes and insert openings coordinated to the bolt holes are provided in the reinforcing member at different longitudinal positions for movable connecting bolts.