# US 8,540,261 B2 · Suspension arm attachment structure

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- Number: US 8,540,261 B2
- Document ID: US8540261B2
- Status: Granted
- Kind: B2
- Application number: 13/699,559
- Filed: 2011-05-23
- Published: 2013-03-14
- Granted: 2013-09-24
- Earliest claimed: 2010-05-25
- Assignees: Honda Motor Co., Ltd.
- Applicants: Kimio Okamoto
- Inventors: Kimio Okamoto
- Web page: https://patentgrep.com/patent/US8540261B2

## CPC

- B62D 21/11: with resilient means for suspension {, e.g. of wheels or engine; sub-frames for mounting engine or suspensions}
- B60G 7/02: Attaching arms to sprung part of vehicle {(B60G7/006 takes precedence)}
- B60G 2204/143: on the vehicle body or chassis
- B60G 2206/8207: by screwing
- 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)
- B60G: VEHICLE SUSPENSION ARRANGEMENTS (air-cushion vehicles B60V; {cycle suspensions B62K25/00})

## Abstract

A suspension arm attachment structure provided with a cylindrical vibration-damping bush which is attached to the side of a vehicle body via a core member. The attachment structure is provided with: a suspension arm having an attachment tube part fitted with a vibration-damping bush; and a retaining member which regulates the movement of the attachment tube part in the axial longitudinal direction. The retaining member is provided with: facing walls on sides thereof which respectively face end surfaces of the vibration-damping bush; a linking part which integrally links the facing walls; and an attachment part on one end and an attachment part on the other end which respectively extend in the axial longitudinal direction of a core member from the facing surface on one side and the facing surface on the other side and which are attached to the side of a vehicle body.

## Claims

### Claim 1

A suspension arm attachment structure comprising:
a suspension arm adapted to be mounted to a vehicle body and connected to a knuckle supporting a vehicle wheel;
a tubular attachment part provided to the suspension arm and supported so as to be swingable toward the vehicle body;
a tubular vibration-damping bush fitted in the tubular attachment part and adapted to be mounted to the vehicle body via a core member; and
a stopper member for preventing axial movement of the tubular attachment part, wherein the stopper member comprises:
a pair of opposite walls provided in opposed relation to end surfaces of the vibration-damping bush, said opposite end walls comprising a first end wall and a second end wall;
a connection part integrally connecting the opposite first and second end walls together; and
a pair of attachment parts each extending axially of the core member from the respective opposite first and second end walls;
wherein the vibration-damping bush is disposed so as to extend in a longitudinal direction of the vehicle body, and
wherein said first end wall of the stopper member is provided adjacent to a first end surface of the vibration-damping bush in the longitudinal direction of the vehicle body so as to nearly fully cover the first end surface of the vibration-damping bush, and said first end wall of the stopper member has a through-hole formed therein for receiving one side of the core member, while said second end wall of the stopper member is provided adjacent to a second end surface of the vibration-damping bush in the longitudinal direction of the vehicle body, and is configured so as to cover only a part of the second end surface of the vibration-damping bush which is on a side of the connection part.

### Claim 2 (depends on 1)

The suspension arm attachment structure of claim 1, wherein the stopper member is adapted to be secured to the vehicle body together with the core member via bolts.

### Claim 3 (depends on 2)

The suspension arm attachment structure of claim 2, wherein the first end wall of the stopper member is placed adjacent to a vehicle-rear-side end surface of the vibration-damping bush, and the second end wall of the stopper member is disposed adjacent to a vehicle-front-side end surface of the vibration-damping bush.

### Claim 4 (depends on 1)

The suspension arm attachment structure of claim 1, wherein the first end wall of the stopper member is placed adjacent to a vehicle-rear-side end surface of the vibration-damping bush, and the second end wall of the stopper member is disposed adjacent to a vehicle-front-side end surface of the vibration-damping bush.

### Claim 5 (depends on 4)

The suspension arm attachment structure of claim 4, wherein the second end wall of the stopper member is set to have an outer dimension larger than that of the front-side end surface of the vibration-damping bush and is provided with a concave part for receiving the core member.

### Claim 6 (depends on 5)

The suspension arm attachment structure of claim 5, wherein one of the attachment parts of the stopper member is formed separately from the first end wall and joined thereto, wherein the one of the attachment parts comprises a body part formed to allow passage of the bolt therethrough and adapted to be attached together with the core member to the vehicle body, a reinforcement part bent and continuing from the body part for reinforcing the one of the attachment parts, and an inclined-surface part provided in an bent fashion on a side of the body part which is closer to the vibration-damping bush and adapted to allow passage of the core member therethrough, and wherein end parts of the reinforcement part and the inclined-surface part are welded to the stopper member in a vicinity of the through-hole of the first end wall.