Rear vehicle body connection structure

Patent metadata

Field	Value
Publication number	US-12325468-B2
Application number	US-202217976454-A
Country	US
Kind code	B2
Filing date	Oct 28, 2022
Priority date	Dec 9, 2021
Publication date	Jun 10, 2025
Grant date	Jun 10, 2025

Abstract

An embodiment is a vehicle body including a vehicle body skeleton including a tail gate frame and a rear side member connected to a lower portion of the tail gate frame, a chassis frame including a longitudinal frame disposed in the length direction of the vehicle body, and a vehicle body rear connection structure configured to connect the vehicle body skeleton and the chassis frame, wherein the longitudinal frame is connected to an intersecting position of the lower portion of the tail gate frame and the rear side member.

First claim

What is claimed is:

1. A vehicle body comprising:
a vehicle body skeleton comprising a tail gate frame and a rear side member connected to a lower portion of the tail gate frame, wherein the rear side member comprises a rear side connection body bent in a width direction of the vehicle body;
a chassis frame comprising a longitudinal frame disposed in a length direction of the vehicle body; and
a vehicle body rear connection structure configured to connect the vehicle body skeleton and the chassis frame, wherein the longitudinal frame is connected to an intersecting position of the lower portion of the tail gate frame and the rear side member.

2. The vehicle body of claim 1 , wherein the lower portion of the tail gate frame comprises:
a back panel member; and
a rear cross member connected to an upper portion of the back panel member.

3. The vehicle body of claim 2 , wherein the tail gate frame has a closed loop shape.

4. A vehicle body comprising:
a vehicle body skeleton comprising a tail gate frame and a rear side member connected to a lower portion of the tail gate frame;
a chassis frame comprising a longitudinal frame disposed in a length direction of the vehicle body; and
a vehicle body rear connection structure configured to connect the vehicle body skeleton and the chassis frame, wherein the longitudinal frame is connected to an intersecting position of the lower portion of the tail gate frame and the rear side member, wherein the rear side member comprises:
a rear side main body formed in the length direction of the vehicle body;
a rear side connection body bent in a width direction of the vehicle body from the rear side main body; and
a rear side end body that bends from the rear side connection body and is connected with the lower portion of the tail gate frame.

5. The vehicle body of claim 4 , wherein the rear side connection body has a shape curved in a rear and outward direction of the vehicle body.

6. The vehicle body of claim 4 , wherein the vehicle body rear connection structure further comprises:
a chassis frame bracket connecting the longitudinal frame and the rear side end body.

7. The vehicle body of claim 6 , wherein the vehicle body rear connection structure further comprises:
a connection bolt connecting the rear side end body and the chassis frame bracket.

8. The vehicle body of claim 7 , wherein the vehicle body rear connection structure further comprises:
a mounting bulk head that is provided inside the rear side end body and connected with the connection bolt.

9. The vehicle body of claim 8 , further comprising:
a rear floor panel provided at a rear of the vehicle body, wherein the rear side member comprises:
a side member flange connected with the rear floor panel; and
a side member protrude body bent from the side member flange, wherein the mounting bulk head is connected with the side member flange and the side member protrude body.

10. The vehicle body of claim 9 , further comprising:
a gusset bracket connecting the rear floor panel and the lower portion of the tail gate frame at an upper portion of a mount position of the connection bolt.

11. The vehicle body of claim 10 , wherein the gusset bracket comprises:
a gusset flange connected to the rear floor panel and the lower portion of the tail gate frame; and
a gusset protrude portion protruded from the gusset flange.

12. The vehicle body of claim 10 , wherein the gusset bracket and the rear floor panel, and the rear side member and the mounting bulk head form a double cross-section respectively, at adjacent positions.

13. A vehicle body comprising:
a vehicle body skeleton comprising a tail gate frame and a rear side member connected to a lower portion of the tail gate frame, wherein the rear side member comprises:
a rear side main body formed in a length direction of the vehicle body;
a rear side connection body bent in a width direction of the vehicle body from the rear side main body; and
a rear side end body that bends from the rear side connection body and is connected with the lower portion of the tail gate frame;

a chassis frame comprising a longitudinal frame disposed in the length direction of the vehicle body; and
a vehicle body rear connection structure configured to connect the vehicle body skeleton and the chassis frame, wherein the longitudinal frame is connected to an intersecting position of the lower portion of the tail gate frame and the rear side member, wherein the vehicle body rear connection structure further comprises:
a chassis frame bracket connecting the longitudinal frame and the rear side end body; and
a connection bolt connecting the rear side end body and the chassis frame bracket.

14. The vehicle body of claim 13 , wherein the lower portion of the tail gate frame comprises:
a back panel member; and
a rear cross member connected to an upper portion of the back panel member.

15. The vehicle body of claim 14 , wherein the tail gate frame has a closed loop shape.

16. The vehicle body of claim 13 , wherein the rear side connection body has a shape curved in a rear and outward direction of the vehicle body.

17. The vehicle body of claim 13 , wherein the vehicle body rear connection structure further comprises:
a mounting bulk head that is provided inside the rear side end body and connected with the connection bolt.

18. The vehicle body of claim 13 , further comprising:
a gusset bracket connecting a rear floor panel and the lower portion of the tail gate frame at an upper portion of a mount position of the connection bolt.

19. The vehicle body of claim 18 , wherein the gusset bracket comprises:
a gusset flange connected to the rear floor panel and the lower portion of the tail gate frame; and
a gusset protrude portion protruded from the gusset flange.

20. The vehicle body of claim 4 , wherein the lower portion of the tail gate frame comprises:
a back panel member; and
a rear cross member connected to an upper portion of the back panel member.

Assignees

• Hyundai Motor Co Ltd
• Kia Corp

Inventors

• Gim Seokju
• Oh Heedae
• Park Joon Tak
• Song Won Ki

Classifications

• B62D25/08 Primary

  Front or rear portions {(sub-frames for mounting engine or suspensions B62D21/11)} · CPC title

• B62D27/023

  Assembly of structural joints · CPC title

• B60Y2306/01

  Reducing damages in case of crash, e.g. by improving battery protection · CPC title

• B62D27/065

  using screwthread (connection of crossbeam to A- pillars B62D25/147; mounting load bearing surfaces B62D21/09; securing mudguards B62D25/163; connections for synthetic parts B62D29/048) · CPC title

• B62D24/00

  Connections between vehicle body and vehicle frame (B62D23/00, B62D33/077 take precedence) · CPC title