# US 12,759,642 B2 · Back panel assembly for a vehicle

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- Number: US 12,759,642 B2
- Document ID: US12759642B2
- Status: Granted
- Kind: B2
- Application number: 18/900,091
- Filed: 2024-09-27
- Published: 2025-06-19
- Granted: 2026-10-13
- Earliest claimed: 2023-12-15
- Assignees: Hyundai Motor Company; Kia Corporation
- Applicants: Hyundai Motor Company; Kia Corporation
- Inventors: Jiae Yong; SungWoong Ha
- Web page: https://patentgrep.com/patent/US12759642B2

## CPC

- B62D 25/087: {Luggage compartments}
- B62D 21/152: {Front or rear frames}
- B62D 25/2027: {the subunits being rear structures}
- B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M)

## Abstract

A back panel assembly, which forms a lower part of a tailgate opening at a rear side of a vehicle body, includes: a rear floor lower member having one end attached to a rear floor panel disposed at the rear side of the vehicle body; a rear transverse member having one end coupled to an end of the rear floor lower member; a back panel covering the rear side of the vehicle body by extending in the transverse direction of the vehicle body while connecting other ends of the rear floor lower member and the other end of the rear transverse member to each other; and a variable member extending in the transverse direction of the vehicle body while connecting the rear transverse member and the back panel to each other to thus divide a space formed therebetween into two spaces.

## Claims

### Claim 1

A back panel assembly, which forms a lower part of a tailgate opening at a rear side of a vehicle body, the assembly comprising:
a rear floor lower member having one end attached to a rear floor panel disposed at the rear side of the vehicle body, and extending in a transverse direction of the vehicle body;
a rear transverse member having one end coupled to an end of the rear floor lower member, and extending in the transverse direction of the vehicle body;
a back panel covering the rear side of the vehicle body by extending in the transverse direction of the vehicle body while connecting other ends of the rear floor lower member and the other end of the rear transverse member to each other; and
a variable member extending in the transverse direction of the vehicle body while connecting the rear transverse member and the back panel to each other to thus divide a space, formed by the rear floor lower member, the rear transverse member, and the back panel, into two spaces.

### Claim 2 (depends on 1)

The assembly of claim 1, wherein the rear floor panel extends in a direction horizontal to the vehicle body, and the one end of the rear floor lower member and the one end of the rear transverse member are coupled to an end of the rear floor panel.

### Claim 3 (depends on 2)

The assembly of claim 2, wherein a side surface of the variable member and a side surface of the rear transverse member are connected to each other by a variable member connection center bulkhead.

### Claim 4 (depends on 3)

The assembly of claim 3, wherein a side surface of the variable member connection center bulkhead is welded to the side surface of the variable member and the side surface of the rear transverse member.

### Claim 5 (depends on 4)

The assembly of claim 4, wherein a side surface of the rear transverse member and a side surface of the rear floor lower member are connected to each other by a side bulkhead.

### Claim 6 (depends on 2)

The assembly of claim 2, wherein the front of a center part of the variable member is spot-welded to a surface of the rear transverse member in the transverse direction of the vehicle body.

### Claim 7 (depends on 2)

The assembly of claim 2, wherein the rear of a center part of the variable member is spot-welded to an inner surface of the back panel in the transverse direction of the vehicle body.

### Claim 8 (depends on 1)

The assembly of claim 1, wherein a position and quantity of the variable member are changed based on the specifications and shapes of the rear transverse member and the back panel.

### Claim 9 (depends on 8)

The assembly of claim 8, wherein the variable member includes:
an attachment part attached to the rear transverse member and the back panel; and
an extension part bent and extending from the attachment part.
