# US 10,766,535 B2 · Vehicle body rear part structure

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- Number: US 10,766,535 B2
- Document ID: US10766535B2
- Status: Granted
- Kind: B2
- Application number: 16/000,940
- Filed: 2018-06-06
- Published: 2019-01-10
- Granted: 2020-09-08
- Earliest claimed: 2017-07-06
- Assignees: Honda Motor Co., Ltd.
- Applicants: Honda Motor Co., Ltd.
- Inventors: Yuki Muramatsu; Shunsuke Kurai
- Web page: https://patentgrep.com/patent/US10766535B2

## CPC

- B62D 21/155: {Sub-frames or underguards}
- B62D 25/08: Front or rear portions {(sub-frames for mounting engine or suspensions B62D21/11)}
- B62D 25/2027: {the subunits being rear structures}
- B62D 25/2036: {the subunits being side panels, sills or pillars (B62D21/157 takes precedence)}
- 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 vehicle body rear part structure includes a rear side frame. The rear side frame includes a general part and a slope part. The general part extends substantially horizontally in at least one of an upper surface and a lower surface. The slope part extends so as to slope downward from the general part. A curved part is formed at a boundary between the general part and the slope part. The rear side frame includes two components which are a front side member and a rear side member. The curved part is provided on a joint part between the front side member and the rear side member.

## Claims

### Claim 1

A vehicle body rear part structure, comprising:
a rear side frame; and
an outrigger that extends outward in a vehicle width direction from the rear side frame,
wherein the rear side frame comprises: a general part that extends substantially horizontally in a lower surface of the rear side frame, a slope part that slopes downward from the general part, and a bent part at a boundary between the general part and the slope part,
the rear side frame comprises two components which are a front side member and a rear side member,
the bent part is provided on a joint part between the front side member and the rear side member, and
an outrigger joint part at which the rear side frame and the outrigger are joined together is provided on the bent part.

### Claim 2 (depends on 1)

The vehicle body rear part structure according to claim 1,
wherein the rear side frame comprises a fragile part that facilitates deformation at a time of rear collision, and
the bent part is provided at a more vehicle body frontward position than the fragile part.

### Claim 3 (depends on 2)

The vehicle body rear part structure according to claim 2, comprising:
a reinforcement member that reinforces the rear side frame at an inner part of the rear side frame,
wherein the reinforcement member is provided between the bent part and the fragile part in a vehicle body front-to-rear direction.

### Claim 4 (depends on 3)

The vehicle body rear part structure according to claim 3,
wherein the rear side frame comprises at least two joint points that are joined to a vehicle body and that are separated from each other in a vehicle body front-to-rear direction, and
the reinforcement member is arranged between the two joint points.

### Claim 5 (depends on 1)

The vehicle body rear part structure according to claim 1,
wherein the rear side frame comprises:
a suspension attachment part to which a suspension apparatus is attached; and
a suspension stiffener that reinforces the suspension attachment part, and
wherein the suspension stiffener is provided to extend from the suspension attachment part to the bent part.

### Claim 6 (depends on 1)

The vehicle body rear part structure according to claim 1, comprising:
an inner wheel arch that is provided on an outer side in a vehicle width direction of the outrigger; and
a connection member that connects together the outrigger and the inner wheel arch,
wherein the outrigger comprises a flange that extends continuously from the bent part to the connection member.