US 9,174,683 B2Granted

Floor reinforcement structure for vehicle body

AssigneeSuzuki Motor Corporation

InventorShinei Mochizuki

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Abstract

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.

Claims6

Dependent claims

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 left and right leg portions of a rear end portion of the floor tunnel extend in a lower direction of the vehicle and extended parts of the left and right leg portions are bent into crank shapes;
and
wherein the rear end portion of the floor tunnel is lower than a tunnel body part and bead portions are provided at lower portions of the rear end portion thus lowered.

5 more elements

Dependencies are inferred from the claim text.