VEHICLE BODY STRUCTURE

摘要

A vehicle body structure is provided that is capable of increasing the degrees of freedom of applicable vehicle type, and that is capable of suppressing a cabin from deforming in a frontal collision by improving load transmission performance. A dash cross member is installed running along a vehicle width direction at a lower section of a dash panel. Rocker linking sections provided at both length direction end portions of the dash cross member are each joined to a rocker inner panel and a front pillar inner panel. A saddle shaped tunnel reinforcing section is formed at a length direction intermediate portion of the dash cross member, and is joined to a tunnel connection section of the dash panel.

主权项

1. A vehicle body structure comprising:
a floor panel that extends along a vehicle front-rear direction at a vehicle width direction intermediate portion and that is formed with a saddle shaped floor tunnel section bulging toward a vehicle upper side; a pair of left and right rockers that are disposed running along the vehicle front-rear direction at both vehicle width direction end portions of the floor panel; a pair of left and right front pillars that are provided extending toward the vehicle upper side from a front end portion of each rocker; a dash panel that is disposed between the pair of left and right front pillars, that partitions between a cabin and a vehicle body front chamber, that is joined to a front end portion of the floor panel, and that is formed with a tunnel connection section formed in a saddle shape at a lower portion of a vehicle width direction intermediate portion and joined to the floor tunnel section; and a dash cross member that is disposed at a vehicle cabin inner side of a lower section of the dash panel, that extends with a length direction thereof along the vehicle width direction, and that has length direction end portions joined to the rockers and a length direction intermediate portion formed in a saddle shape and joined to the tunnel connection section, thereby forming a vehicle body frame section with a closed cross-section structure that is contiguous along the vehicle width direction between the pair of left and right rockers and that is coupled together with the floor tunnel section through the tunnel connection section.