IP Library Granted Patent US 12679259
Granted Patent B2
US 12679259 · App. 18/380,382 · Granted Jul 14, 2026

Reinforcement structure for rear seat interim portion

Inventors: Mincheol Kim (Seoul, KR); Changuk Ha (Gwangmyeong-si, KR); KeonWoo Kim (Hwaseong-si, KR)
Assignees: HYUNDAI MOTOR COMPANY; Kia Corporation
B60N2/4256B60R16/04B60K1/04B60K2001/0433
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Quick Facts
Patent No.
US 12679259
App. No.
18/380,382
Granted
Jul 14, 2026
Kind
B2
Abstract

A reinforcement structure for a rear seat interim portion includes a side member disposed outside a width direction of a vehicle body, a battery case mounted on a rear floor panel, and an upper transverse direction reinforcement connected to a lower portion of the rear floor panel, an outer end thereof connected to the side member, and the upper transverse direction reinforcement connected to the battery case through the rear floor panel.

Claims (30)

1 . A reinforcement structure for a rear seat interim portion comprising:

a side member disposed on both sides of a vehicle body in a width direction;

a battery case mounted on a rear floor panel; and

an upper transverse direction reinforcement connected to a lower portion of the rear floor panel, an outer end thereof connected to the side member, and the upper transverse direction reinforcement connected to the battery case through the rear floor panel.

2 . The reinforcement structure of claim 1 , further comprising:

a cross member rear disposed under the rear floor panel in the width direction of the vehicle body; and

a lower transverse direction reinforcement connecting the side member and the cross member rear.

3 . The reinforcement structure of claim 2 , wherein

the upper transverse direction reinforcement and the lower transverse direction reinforcement are spaced apart in a vertical direction of the vehicle body to form a dual load path that transmits a crash load in an event of a vehicle body side collision.

4 . The reinforcement structure of claim 2 , wherein the lower transverse direction reinforcement comprises:

a lower reinforcement outer flange connected to an inner side face of the side member;

a lower reinforcement lower flange connected to a lower side of the side member; and

a lower reinforcement inner flange connected to an upper portion of the cross member rear.

5 . The reinforcement structure of claim 4 , wherein the lower transverse direction reinforcement further comprises

a lower reinforcement rear flange connected to a trailing arm mounting housing disposed at a rear of the side member.

6 . The reinforcement structure of claim 4 , wherein

a body of the lower transverse direction reinforcement has an “L” shaped cross-section.

7 . The reinforcement structure of claim 1 , wherein

a body of the upper transverse direction reinforcement has an “L”-shaped cross-section.

8 . The reinforcement structure of claim 1 , further comprising

a cross end reinforcement connected to an inner side face of the side member and an upper portion of the rear floor panel.

9 . The reinforcement structure of claim 8 , wherein the side member further comprises an opening flange formed protrude upwardly, and

wherein the cross end reinforcement comprises:

an outer flange connected with the opening flange; and

an inner flange connected to the upper portion of the rear floor panel.

10 . The reinforcement structure of claim 9 , wherein the cross end reinforcement further comprises an inclined portion inclined to connect the outer flange and the inner flange.

11 . The reinforcement structure of claim 2 , further comprising: a cross member front disposed in front of the cross member rear, and

wherein the battery case is mounted on the cross member rear and the cross member front.

12 . The reinforcement structure of claim 1 , wherein

the upper transverse direction reinforcement is mounted on an interim part inclined in the rear direction of the side member.