Vehicle framework structure
A vehicle framework structure includes: a pair of rockers extending in a vehicle front-rear direction at both sides in a vehicle width direction; a pair of die-cast members, each die-cast member being joined to at least one of a front end portion or a rear end portion of one of the pair of rockers; a first cross-member extending in the vehicle width direction and being connected to the pair of die-cast members; and a second cross-member provided to the pair of die-cast members, at one of a front side or a rear side in the vehicle front-rear direction relative to the first cross-member, the second cross-member extending in the vehicle width direction and connecting the pair of die-cast members.
1. A vehicle framework structure comprising:
a pair of rockers extending in a vehicle front-rear direction at both sides in a vehicle width direction;
a pair of die-cast members, each die-cast member being joined to at least one of a front end portion or a rear end portion of one of the pair of rockers;
a first cross-member extending in the vehicle width direction and being connected to the pair of die-cast members; and
a second cross-member provided to the pair of die-cast members, at one of a front side or a rear side in the vehicle front-rear direction relative to the first cross-member, the second cross-member extending in the vehicle width direction and connecting the pair of die-cast members.
2. The vehicle framework structure according to claim 1 , wherein:
each of the pair of die-cast members is joined to the rear end portion of one of the pair of rockers and, as viewed from a vehicle rear side, a cross-sectional shape of each of the pair of die-cast members is a hat shape that is open to a vehicle width direction outer side of each of the pair of die-cast members;
an inflected portion that is recessed to a vehicle width direction inner side in plan view is formed at a rear end portion of each of the pair of die-cast members; and
an outer panel is joined to the inflected portion such that the rear end portion of each of the pair of die-cast member forms a closed cross-section structure.
3. The vehicle framework structure according to claim 2 , wherein an end portion at a vehicle width direction outer side of the outer panel is configured to be joined to a framework member that has a closed cross-section structure.
4. The vehicle framework structure according to claim 2 , wherein the second cross-member is provided at a vehicle rear side relative to a front end portion of the inflected portion of each of the pair of die-cast members.
5. The vehicle framework structure according to claim 3 , wherein the second cross-member is provided at a vehicle rear side relative to a front end portion of the inflected portion of each of the pair of die-cast members.
6. The vehicle framework structure according to claim 1 , wherein the second cross member includes a flange that extends toward the first cross member, and the flange and the first cross member are connected by a connecting member.