# US 11,999,215 B2 · Rear suspension structure

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- Number: US 11,999,215 B2
- Document ID: US11999215B2
- Status: Granted
- Kind: B2
- Application number: 18/169,992
- Filed: 2023-02-16
- Published: 2023-09-28
- Granted: 2024-06-04
- Earliest claimed: 2022-03-24
- Assignees: Honda Motor Co., Ltd.
- Applicants: Honda Motor Co., Ltd.
- Inventors: Hideki Hirai
- Web page: https://patentgrep.com/patent/US11999215B2

## CPC

- B60G 7/001: {Suspension arms, e.g. constructional features (B60G7/006 takes precedence)}
- B60G 21/052: {Mounting means therefor}
- B60G 7/008: {Attaching arms to unsprung part of vehicle (B60G7/005, B60G7/006 take precedence)}
- B60G 7/02: Attaching arms to sprung part of vehicle {(B60G7/006 takes precedence)}
- B60G 11/14: having helical, spiral or coil springs only {(B60G11/006 takes precedence)}
- B60G 2200/154: the lateral arm having an L-shape
- B60G 2200/21: Trailing arms connected by a torsional beam, i.e. twist-beam axles
- B60G 2204/143: on the vehicle body or chassis
- B60G 2204/148: on the unsprung part of the vehicle, e.g. wheel knuckle or rigid axle
- B60G 2204/41: Elastic mounts, e.g. bushings
- B60G: VEHICLE SUSPENSION ARRANGEMENTS (air-cushion vehicles B60V; {cycle suspensions B62K25/00})

## Abstract

A rear suspension structure includes a hub carrier having a wheel support portion by which a rear wheel is rotatably supported, the hub carrier includes a front arm portion that extends in a vehicle inner direction and toward the vehicle front side beyond an axle of the rear wheel and a rear arm portion that extends toward the vehicle rear side, the rear arm portion is coupled to a lateral beam extending in a vehicle width direction, on the vehicle rear side of the axle, a vehicle rear side end portion of a trailing arm extending in a vehicle front-rear direction is coupled to the lateral beam, and the front arm portion is coupled to a front arm attachment portion provided in the trailing arm.

## Claims

### Claim 1

A rear suspension structure configured to support a rear wheel of a vehicle, wherein
the vehicle includes a hub carrier having a wheel support portion by which the rear wheel is rotatably supported,
the hub carrier includes a front arm portion that extends in a vehicle inner direction and toward the vehicle front side beyond an axle of the rear wheel and a rear arm portion that extends toward the vehicle rear side,
the rear arm portion is coupled to a lateral beam extending in a vehicle width direction, on the vehicle rear side of the axle,
a vehicle rear side end portion of a trailing arm extending in a vehicle front-rear direction is coupled to at least one of the rear arm portion and the lateral beam on the vehicle rear side of the axle, and
the front arm portion is coupled to a front arm attachment portion provided in the trailing arm.

### Claim 2 (depends on 1)

The rear suspension structure according to claim 1, wherein
the trailing arm has a vehicle body attachment portion that couples a vehicle front side end portion of the trailing arm to the vehicle, and
the front arm attachment portion is provided at substantially a midpoint of the vehicle body attachment portion and the vehicle rear side end portion.

### Claim 3 (depends on 2)

The rear suspension structure according to claim 2, wherein the trailing arm is arranged to have a tilt angle toward the vehicle width direction outer side in an upper-lower direction view such that the vehicle body attachment portion is located on the vehicle outer side of the vehicle rear side end portion.

### Claim 4 (depends on 3)

The rear suspension structure according to claim 3, wherein
the front arm portion has a front arm extended portion that extends in a direction substantially orthogonal to the tilt angle in the upper-lower direction view, and
the front arm extended portion is coupled to the front arm attachment portion.

### Claim 5 (depends on 4)

The rear suspension structure according to claim 4, wherein a coupling portion of the front arm extended portion and the front arm attachment portion is arranged on an imaginary line connecting the vehicle rear side end portion and the vehicle body attachment portion.