# US 2017/0282999 A1 · Swing arm of saddle riding vehicle

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- Number: US 2017/0282999 A1
- Document ID: US20170282999A1
- Status: Published application
- Kind: A1
- Application number: 15/471,249
- Filed: 2017-03-28
- Published: 2017-10-05
- Earliest claimed: 2016-03-31
- Assignees: Honda Motor Co., Ltd.
- Applicants: Honda Motor Co., Ltd.
- Inventors: Masayuki HIRAMARU
- Web page: https://patentgrep.com/patent/US20170282999A1

## CPC

- B62K 25/283: {for cycles without a pedal crank, e.g. motorcycles}
- B62M 9/16: Tensioning or adjusting equipment for chains, belts or the like
- B62K: CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDECARS, FORECARS, OR THE LIKE
- B62M: RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR {SINGLE-TRACK} CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES (arrangements or mounting of transmissions in vehicles in general B60K; transmission elements per se F16)

## Abstract

A swing arm includes a tubular arm main body and an axle support member configured to support an axle of a rear wheel, wherein a fixing surface for fastening and fixing the axle support member in the arm main body together with the axle is provided at an inner side-surface of the arm main body in a vehicle width direction, and an opening for inserting the axle support member is provided at an outer side-surface of the arm main body in the vehicle width direction.

## Claims

### Claim 1

A swing arm of a saddle riding vehicle comprising:
an arm main body formed in a substantially tubular form and substantially extending in a forward/rearward direction of a vehicle body; and
an axle support member configured to support an axle of a rear wheel,
wherein a fixing surface for fastening and fixing the axle support member in the arm main body together with the axle is provided at an inner side-surface of the arm main body in a vehicle width direction, and
an opening for inserting the axle support member is provided at an outer side-surface of the arm main body in the vehicle width direction.

### Claim 2 (depends on 1)

The swing arm of the saddle riding vehicle according to claim 1,
wherein a cross section of the arm main body taken in a direction substantially perpendicular with an extending direction of the arm main body has a cross sectional shape including an arc section, and
the fixing surface has a shape that substantially matches with a abutting surface of the axle support member which abuts with the fixing surface.

### Claim 3 (depends on 2)

The swing arm of the saddle riding vehicle according to claim 2,
wherein the fixing surface of the arm main body and the abutting surface of the axle support member are formed as a flat surface.

### Claim 4 (depends on 1)

The swing arm of the saddle riding vehicle according to claim 1,
wherein the inner side-surface of the arm main body, which includes the fixing surface, in the vehicle width direction is formed by a reinforcement member separate from a base member mainly consisting the arm main body.

### Claim 5 (depends on 4)

The swing arm of the saddle riding vehicle according to claim 4,
wherein the arm main body includes a substantially tubular member in which a notch portion is provided at a region facing an inner side of a circumferential wall of the arm main body in the vehicle width direction.

### Claim 6 (depends on 4)

The swing arm of the saddle riding vehicle according to claim 4,
wherein the reinforcement member includes a cushion connecting section to which an end part of a rear cushion is connected.

### Claim 7 (depends on 1)

The swing arm of the saddle riding vehicle according to claim 1, further comprising:
a cover member configured to cover a gap between the opening and the axle support member.

### Claim 8 (depends on 7)

The swing arm of the saddle riding vehicle according to claim 7,
wherein the cover member is fastened and fixed to the axle in a state in which the axle support member is sandwiched between the cover member and the inner side-surface of the arm main body in the vehicle width direction.

### Claim 9 (depends on 7)

The swing arm of the saddle riding vehicle according to claim 7,
wherein a gap is provided between the cover member and the arm main body.

### Claim 10 (depends on 1)

The swing arm of the saddle riding, vehicle according to claim 1,
wherein a screw member disposed along an axis direction of the arm main body is supported in the arm main body in a rotatable and adjustable state,
the axle support member is disposed so as to be capable of being displaced in the axis direction of the arm main body at inside the arm main body, and
the axle support member includes a screw receiving section to which the screw member is screwed into.

### Claim 11 (depends on 10)

The swing arm of the saddle riding vehicle according to claim 10,
wherein the screw member is supported in the arm main body via an axis direction restricting part in a state a displacement in the axis direction is restricted.