# US 10,246,133 B2 · Rear vehicle body structure

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- Number: US 10,246,133 B2
- Document ID: US10246133B2
- Status: Granted
- Kind: B2
- Application number: 15/620,398
- Filed: 2017-06-12
- Published: 2018-05-31
- Granted: 2019-04-02
- Earliest claimed: 2016-11-25
- Assignees: Hyundai Motor Company; Kia Motors Corporation
- Applicants: Hyundai Motor Company; Kia Motors Corporation
- Inventors: Mun Soo Cha; Yoonkyoung Han
- Web page: https://patentgrep.com/patent/US10246133B2

## CPC

- B62D 21/152: {Front or rear frames}
- B62D 23/005: {with integrated chassis in the whole shell, e.g. meshwork, tubes, or the like (B62D33/044 takes precedence)}
- B62D 25/08: Front or rear portions {(sub-frames for mounting engine or suspensions B62D21/11)}
- B62D 27/065: {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)}
- B62D 29/008: {predominantly of light alloys, e.g. extruded}
- 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 rear vehicle body structure includes right/left side rear upper side members having ends respectively connected to right/left side center pillar members disposed at right/left sides along a width direction of a vehicle as well as being formed to extend along a height direction of a vehicle and a center pillar cross reinforcement member formed to extend along the width direction to connect the right/left side center pillar members, and disposed at the right/left sides along the width direction. A rear upper cross member is formed to extend along the width direction to connect the right/left side rear upper side members.

## Claims

### Claim 1

A rear vehicle body structure comprising:
right/left side rear upper side members having ends respectively connected to right/left side center pillar members disposed at right/left sides along a width direction of a vehicle as well as being formed to extend along a height direction of a vehicle and a center pillar cross reinforcement member formed to extend along the width direction to connect the right/left side center pillar members, and disposed at the right/left sides along the width direction; and
a rear upper cross member formed to extend along the width direction to connect the right/left side rear upper side members;
wherein each of the right/left side rear upper side members includes:
a rear upper side front member disposed at a front along the length direction of the vehicle;
a rear upper side center member disposed at a center and having one end connected to the rear upper side front member; and
a rear upper side rear member disposed at a rear and having one end connected to the rear upper side center member.

### Claim 2 (depends on 1)

The rear vehicle body structure of claim 1, wherein the rear upper side front member includes two ends respectively connected to the center pillar member and the center pillar cross reinforcement member and one end connected to the rear upper side center member, thereby being formed of an entire “Y” shape.

### Claim 3 (depends on 1)

The rear vehicle body structure of claim 1, wherein the rear upper side front member and the rear upper side rear member is formed to have a multi cross section or a closed cross section by using an extrusion method using an aluminum material.

### Claim 4 (depends on 1)

The rear vehicle body structure of claim 1, wherein the rear upper side center member is molded by a die casting method using an aluminum material.

### Claim 5 (depends on 1)

The rear vehicle body structure of claim 1, further comprising:
right/left side rear lower side members disposed below the rear upper side member in the height direction, formed to extend in the length direction of the vehicle, and disposed at the right/left sides along the width direction; and
the rear lower side member is connected to the rear upper side member.

### Claim 6 (depends on 5)

The rear vehicle body structure of claim 5, wherein the right/left side rear lower side members are connected to each other by a rear lower cross member formed to extend along the width direction.

### Claim 7 (depends on 5)

The rear vehicle body structure of claim 5, wherein:
the rear upper side member is connected to the rear lower side member through a front connector member disposed at a front along the length direction and a rear connector member disposed at a rear; and
the front connector member and the rear connector member are respectively formed to extend in the height direction and disposed at the right/left sides.

### Claim 8 (depends on 7)

The rear vehicle body structure of claim 7, wherein a circular structure of a rectangular shape is formed by the right/left side rear upper side members, the rear upper cross member, the right/left side rear lower side members, a rear lower cross member formed to extend along the width direction, and right/left side rear connector members.

### Claim 9 (depends on 7)

The rear vehicle body structure of claim 7, wherein the rear upper side center member includes:
a body plate entirely formed of a rectangular shape;
an upper flange protruded outside in the width direction from an upper end edge of the body plate; and
a lower flange protruded outside in the width direction of the vehicle from a lower end edge of the body plate.

### Claim 10 (depends on 9)

The rear vehicle body structure of claim 9, wherein:
four bosses are disposed with a predetermined interval along the length direction of the vehicle at the body plate;
four bosses are formed to be respectively protruded outside in the width direction of the vehicle;
an assemble nut is engaged in a planted form or a screw tab is formed at four bosses; and
an upper suspension arm is engaged to the assemble nut or the screw tab.

### Claim 11 (depends on 10)

The rear vehicle body structure of claim 10, wherein:
a plurality of reinforcing ribs is formed to radially extend based on each of the bosses; and
a connection reinforcing boss is formed by connecting four bosses, the four bosses including a front boss positioned at a front along the length direction of the vehicle, a rear boss positioned at a rear, and two center bosses disposed between the front boss and the rear boss, the four bosses being connected into one boss that is formed among the plurality of reinforcing ribs.

### Claim 12 (depends on 9)

The rear vehicle body structure of claim 9, wherein:
the rear upper side rear member includes a closed box cross section; and
the rear upper cross member coupled to a side surface of the rear upper side rear member also includes a closed box cross section.

### Claim 13 (depends on 9)

The rear vehicle body structure of claim 9, wherein a rib is formed to extend along the length direction and to be protruded downwardly at a lower surface of the lower flange and a second rib is formed to extend in the length direction and to be protruded in an inside direction at an inside surface of the body plate.

### Claim 14 (depends on 9)

The rear vehicle body structure of claim 9, wherein the rear upper side front member and the front connector member are disposed in a shape enclosing a fuel tank therebetween from an outside.

### Claim 15 (depends on 9)

The rear vehicle body structure of claim 9, wherein:
a front coupling unit is formed by the upper flange and the lower flange and front partition at a front part along the length direction of the rear upper side center member, thereby the rear upper side front member is inserted to the front coupling unit to be coupled; and
a rear coupling unit is formed by the upper flange and the lower flange and rear partition at a rear part along the length direction of the rear upper side center member, thereby the rear upper side rear member is inserted to the rear coupling unit to be coupled.

### Claim 16 (depends on 15)

The rear vehicle body structure of claim 15, wherein:
the lower flange is recessed upwardly in the height direction near the front coupling unit to form a front lower coupling unit of a box shape, thereby the front connector member is inserted to the front lower coupling unit to be coupled; and
the lower flange is recessed upwardly in the height direction of the vehicle near the rear coupling unit to form a rear lower coupling unit of a box shape, thereby the rear connector member is inserted to the rear lower coupling unit to be coupled.

### Claim 17 (depends on 16)

The rear vehicle body structure of claim 16, wherein a reinforcing part of a shape covering a corner part is provided at the corner part between the front coupling unit and the front lower coupling unit.

### Claim 18 (depends on 15)

The rear vehicle body structure of claim 15, wherein:
the rear upper cross member is coupled to the rear upper side rear member; and
a plurality of ribs to reinforce a strength of a coupling part with the rear upper cross member is formed at an inside surface of the rear coupling unit of the rear upper side center member.

### Claim 19 (depends on 15)

The rear vehicle body structure of claim 15, wherein a plurality of ribs to reinforce strength is formed at an outside surface of the rear coupling unit of the rear upper side center member.