FLOOR REINFORCEMENT STRUCTURE FOR VEHICLE BODY

摘要

The invention includes a floor reinforcement structure for vehicle body providing rigidity to an area around a main and rear floor joint; improving vehicle-body rigidity and rigidity against floor shaking and associated vehicle interior noise; and improving vehicle running stability. A floor reinforcement structure includes: a main floor; rear floor; side sill; a floor tunnel with a hat-like cross-section protruding from the floor and located medially in the main floor in the vehicle width direction and extending in a front-and-rear direction; and a vertical wall at the front of the rear floor extending in a vehicle vertical direction. The vertical wall is continuous with no steps The height of a top face thereof is larger than twice the height of a top face of the side sill, which is more than twice the height of a top face of a rear end portion of the floor tunnel.

主权项

1. A floor reinforcement structure for vehicle body, comprising:
a main floor and a rear floor provided in a vehicle front-and-rear direction; a side sill being provided at each of left and right sides of the main floor and the rear floor in a vehicle width direction, and extending in the vehicle front-and-rear direction; a floor tunnel of a hat-like cross-sectional shape protruding in an upper direction of the vehicle, the floor tunnel being provided at a middle portion of the main floor in the vehicle width direction and extending in the vehicle front-and-rear direction; and a vertical wall being formed at a front side of the rear floor and extending in a vehicle vertical direction, wherein the vertical wall of the rear floor is formed into a continuous shape having no steps, a half of a height of a top face of the vertical wall of the rear floor is larger than a height of a top face of the side sill, and a half of the height of the top face of the side sill is larger than a height of a top face of the floor tunnel.