A vehicle body may include a floor; a pair of side sills connected to first and second side edges of the floor, respectively; and a cross unit mounted on the floor and extending in a width direction of a vehicle, wherein the cross unit includes a lower crossmember connecting the pair of side sills, an upper crossmember disposed above the lower crossmember, a first reinforcement member disposed between the lower crossmember and the upper crossmember, and a pair of second reinforcement members connected to first and second end portions of the first reinforcement member, respectively.
1. A vehicle body comprising:
a floor;
a pair of side sills connected to first and second side edges of the floor, respectively; and
a cross unit mounted on the floor and extending in a width direction of a vehicle,
wherein the cross unit includes a lower crossmember connecting the pair of side sills, an upper crossmember disposed above the lower crossmember, a first reinforcement member disposed between the lower crossmember and the upper crossmember, and a pair of second reinforcement members connected to first and second end portions of the first reinforcement member, respectively.
2. The vehicle body according to claim 1 , wherein each of the second reinforcement members connects an end portion of the first reinforcement member and a corresponding side sill among the pair of side sills.
3. The vehicle body according to claim 2 , wherein each of the second reinforcement members is connected to a portion of the lower crossmember.
4. The vehicle body according to claim 1 , further including:
a fuel tank mounting bracket attached to a bottom surface of the cross unit; and
a floor member attached to a bottom surface of the floor,
wherein the floor member is connected to the fuel tank mounting bracket, and
wherein the floor member extends in a longitudinal direction of the vehicle.
5. The vehicle body according to claim 4 , wherein the floor member is directly connected to the fuel tank mounting bracket.
6. The vehicle body according to claim 4 , wherein the floor member extends from the fuel tank mounting bracket toward a front of the vehicle.
7. The vehicle body according to claim 4 , wherein the floor member has a coupling flange connected to the fuel tank mounting bracket.
8. The vehicle body according to claim 4 ,
wherein a first end portion of the fuel tank mounting bracket is attached to the lower crossmember of the cross unit,
wherein the floor member has a coupling flange,
wherein the floor includes an intermediate floor panel, and
wherein a second end portion of the fuel tank mounting bracket is connected to the coupling flange of the floor member and the intermediate floor panel of the floor.
9. The vehicle body according to claim 1 , further including:
a longitudinal member attached to an inboard sidewall of each side sill,
wherein the longitudinal member is disposed to extend in a longitudinal direction of the vehicle,
wherein a front end portion of the longitudinal member is connected to the cross unit, and
wherein the longitudinal member is disposed to extend from the cross unit toward a rear of the vehicle.
10. The vehicle body according to claim 9 , wherein the front end portion of the longitudinal member is directly connected to the cross unit.
11. The vehicle body according to claim 10 , wherein a first end portion of the lower crossmember is directly connected to a first end portion of the lower crossmember of the cross unit, a first end of the upper crossmember is connected to the first end portion of the lower crossmember, a first end portion of the second reinforcement member is connected to the first end portion of the lower crossmember, and a second end of the upper crossmember and a second end portion of the second reinforcement member are connected to a second end portion of the lower crossmember.
12. The vehicle body according to claim 1 , wherein the first reinforcement member has a first seat mounting hole to which a seat mounting bracket is connected.
13. The vehicle body according to claim 1 , wherein the second reinforcement member has a second seat mounting hole to which a seat mounting bracket is connected.