Vehicle rear structure
A vehicle rear structure includes: a rear sideframe disposed on either side in a rear of a vehicle body; and a rear subframe disposed under the rear sideframe, wherein a rear end of the rear subframe is disposed at the same position in the longitudinal direction as, or at a position posterior to, a rear end of the rear sideframe. The vehicle rear structure has better performance in transmitting an impact load at a rear impact with a vehicle than ever, to further improve performance in absorbing impact energy.
1. A vehicle rear structure comprising:
a rear sideframe disposed on either side in a rear of a vehicle body; and
a rear subframe disposed under the rear sideframe,
wherein a rear end of the rear subframe is disposed at a position posterior to a rear end of the rear sideframe,
the rear subframe includes a pair of side members and a rear member joining the pair of the side members to each other,
a rear end of the rear member, formed to be convex rearward, is positioned posterior to rear ends of the pair of the side members,
the rear sideframe includes a first front-rear portion extending in a vehicle longitudinal direction, and a first inclined portion extending frontward from a front end of the first front-rear portion at an angle so as to be gradually displaced more outward in a vehicle width direction with an increasing distance from the front end of the first front-rear portion,
the rear subframe includes a second front-rear portion extending in a vehicle longitudinal direction, and a second inclined portion extending frontward from a front end of the second front-rear portion at an angle, so as to be gradually displaced more outward in the vehicle width direction with an increasing distance from the front end of the second front-rear portion, and being integrally joined to the second front-rear portion,
the second inclined portion is connected to the rear sideframe, and
the second front-rear portion extends along the first front-rear portion, and the second inclined portion extends along the first inclined portion, in a bottom view of the vehicle body.
2. The vehicle rear structure according to claim 1 , wherein
the second front-rear portion is joined to the first front-rear portion, and
the second inclined portion is joined to the first inclined portion.
3. The vehicle rear structure according to claim 2 , comprising:
a side sill disposed on either side of the vehicle body,
wherein the rear sideframe has a front end of the first inclined portion joined to a rear end of the side sill, and has the first front-rear portion disposed at a higher level than the side sill, in a side view of the vehicle body, and
the second front-rear portion and the second inclined portion are disposed at the same height as the side sill, in a side view of the vehicle body.
4. The vehicle rear structure according to claim 2 , wherein
the second front-rear portion and the second inclined portion of the rear subframe, which are integrally joined to each other, form a side member, and
the side member has a front portion thereof joined to the rear sideframe, and has a rear end thereof disposed at the same position in the longitudinal direction as, or at a position posterior to, a rear end of the rear sideframe.
5. The vehicle rear structure according to claim 1 , wherein
the rear member is formed with a mount portion to have a drive unit mounted thereon, and
the mount portion is positioned posterior to the rear ends of the side members.