# US 10,479,435 B2 · Vehicle body frame structure for saddle riding vehicle

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- Number: US 10,479,435 B2
- Document ID: US10479435B2
- Status: Granted
- Kind: B2
- Application number: 15/886,147
- Filed: 2018-02-01
- Published: 2018-08-30
- Granted: 2019-11-19
- Earliest claimed: 2017-02-28
- Assignees: Honda Motor Co., Ltd.
- Applicants: Honda Motor Co., Ltd.
- Inventors: Hiroshi Iwakami; Shimpei Shikanai
- Web page: https://patentgrep.com/patent/US10479435B2

## CPC

- B62K 11/04: characterised by the engine being between front and rear wheels
- B62H 1/02: Articulated stands, e.g. in the shape of hinged arms (B62H1/10 takes precedence)
- B62K 19/12: having cast members
- B62K 25/28: with pivoted chain-stay
- B62K: CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDECARS, FORECARS, OR THE LIKE
- B62H: CYCLE STANDS; SUPPORTS OR HOLDERS FOR PARKING OR STORING CYCLES; APPLIANCES PREVENTING OR INDICATING UNAUTHORIZED USE OR THEFT OF CYCLES; LOCKS INTEGRAL WITH CYCLES; DEVICES FOR LEARNING TO RIDE CYCLES

## Abstract

A vehicle body frame includes a head section that rotatably supports a steering shaft, and main frames extending from the head section toward a rear side of a vehicle body. A cross section of the main frame in a direction crossing a vehicle body forward/rearward direction is formed in a substantially rectangular shape having a vertical width larger than a lateral width. A carbon fiber reinforced resin in which carbon fibers are oriented uniformly in the vehicle body forward/rearward direction is installed on at least one of upper surfaces and lower surfaces of the main frames.

## Claims

### Claim 1

A vehicle body frame structure for a saddle riding vehicle comprising:
a head section that rotatably supports a steering shaft; and
a main frame extending from the head section toward a rear side of a vehicle body,
wherein a cross section of the main frame in a direction crossing a vehicle body forward/rearward direction is formed in a substantially rectangular shape having a vertical width larger than a lateral width,
a carbon fiber reinforced resin in which carbon fibers are oriented uniformly in the vehicle body forward/rearward direction is installed on at least one of an upper surface and a lower surface of the main frame, and
the carbon fiber reinforced resin is installed on both of the upper surface and the lower surface of the main frame.

### Claim 2 (depends on 1)

The vehicle body frame structure for a saddle riding vehicle according to claim 1,
wherein the carbon fiber reinforced resin is formed to bridge the upper surface or the lower surface of the main frame and a region of the head section substantially along an outer circumferential surface of a steering shaft.

### Claim 3 (depends on 1)

The vehicle body frame structure for a saddle riding vehicle according to claim 1,
wherein the carbon fiber reinforced resin is formed symmetrically with respect to a center of the main frame in a cross section of the main frame.

### Claim 4 (depends on 2)

The vehicle body frame structure for a saddle riding vehicle according to claim 2,
wherein the carbon fiber reinforced resin is formed symmetrically with respect to a center of the main frame in a cross section of the main frame.

### Claim 5

A vehicle body frame structure for a saddle riding vehicle comprising:
a head section that rotatably supports a steering shaft; and
a main frame extending from the head section toward a rear side of a vehicle body,
wherein a cross section of the main frame in a direction crossing a vehicle body forward/rearward direction is formed in a substantially rectangular shape having a vertical width larger than a lateral width,
a carbon fiber reinforced resin in which carbon fibers are oriented uniformly in the vehicle body forward/rearward direction is installed on at least one of an upper surface and a lower surface of the main frame, and
the carbon fiber reinforced resin is formed to bridge the upper surface or the lower surface of the main frame and a region of the head section substantially along an outer circumferential surface of a steering shaft.

### Claim 6 (depends on 5)

The vehicle body frame structure for a saddle riding vehicle according to claim 5,
wherein the carbon fiber reinforced resin is formed symmetrically with respect to a center of the main frame in a cross section of the main frame.