Rear frame for vehicle

A rear frame comprising:

• a pair of side portions spaced apart from each other in a width direction of a vehicle, each side portion comprising:
• a front mounting surface on which a front mount of a rear subframe is mounted;
• a front recessed structure disposed on the front mounting surface, the front recessed structure having a pocket shape with an open top and a first through hole;
• a rear mounting surface on which a rear mount of the rear subframe is mounted;
• and
• a rear recessed structure disposed on the rear mounting surface, the rear recessed structure having the pocket shape with the open top and a second through hole;
• a first cross portion connecting front portions of the pair of side portions, the first cross portion comprising:
• a top wall;
• a vertical wall extending vertically downward from the top wall;
• a bottom wall extending from a bottom edge of the vertical wall toward a front of the vehicle;
• a recessed wall recessed from the bottom wall toward a bottom of the vehicle;
• a plurality of raised walls raised upward from the recessed wall;
• and
• a plurality of passages disposed between the plurality of raised walls, the plurality of passages being flush with a top surface of the recessed wall;
• and
• a second cross portion connecting rear portions of the pair of side portions, wherein the pair of side portions, the first cross portion, and the second cross portion together are a unitary one-piece structure.

A rear frame comprising:

• a pair of side portions spaced apart from each other in a width direction of a vehicle, each side portion comprising:
• a front mounting surface on which a front mount of a rear subframe is mounted;
• a front recessed structure disposed on the front mounting surface, the front recessed structure having a pocket shape with an open top and a first through hole;
• a rear mounting surface on which a rear mount of the rear subframe is mounted;
• a rear recessed structure disposed on the rear mounting surface, the rear recessed structure having the pocket shape with the open top and a second through hole;
• a channel portion to which a wheel house inner panel and a wheel house reinforcing member are fixed, the channel portion having the pocket shape with the open top and a third through hole;
• a damper receptacle in which a suspension damper is mounted, the damper receptacle having the pocket shape having a cavity with an open bottom;
• a front inboard wall extending from the damper receptacle toward a front of the vehicle;
• and
• a rear inboard wall extending from the damper receptacle toward a rear of the vehicle;
• a first cross portion connecting front portions of the pair of side portions;
• and
• a second cross portion connecting rear portions of the pair of side portions, wherein the pair of side portions, the first cross portion, and the second cross portion together are a unitary one-piece structure.