Saddle-type vehicle

By connecting the duct to the bridge frame rather than the side frames, the duct system maintains the rigidity and support capacity of the engine unit, addressing the issue of reduced stability caused by air intake holes in saddle-type vehicles.

JP7868376B2Active Publication Date: 2026-06-02SUZUKI MOTOR CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
SUZUKI MOTOR CORP
Filing Date
2022-03-30
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The rigidity of the frame supporting the engine unit in saddle-type vehicles is compromised by the formation of through holes for air intake, leading to a decrease in the support capacity and driving stability.

Method used

A duct system is connected to the bridge frame instead of the side frames, utilizing the vehicle frame as a passage for cooling air to the transmission while minimizing the need for holes in the side frames, thereby maintaining rigidity and support capacity.

Benefits of technology

The duct system maintains the rigidity of the side frames, ensuring stable support of the engine unit and effective cooling of the transmission without significant reduction in support force.

✦ Generated by Eureka AI based on patent content.

Smart Images

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Patent Text Reader

Abstract

To inhibit degradation of a bearing capacity of a vehicle body frame which bears an engine unit while utilizing the vehicle body frame as a passage through which cooling air is fed to a transmission.SOLUTION: A saddle riding vehicle includes a pair of left and right side frames 5 formed in a hollow tubular form, a bridge frame 6 laid between the pair of side frames 5, a unit swing type engine unit 31 that is swingably borne by the pair of side frames 5 and includes an engine 32 and transmission 41, and a duct 61 through which air is fed to the transmission 41 in order to cool the transmission 41. One end of the duct 61 is connected to the bridge frame 6, and the other end of the duct 61 is connected to a transmission case 42. The side frames 5 each have an air inflow port. The inside of each of the side frames 5 and the inside of the bridge frame 6, the inside of the bridge frame 6 and the inside of the duct 61, and the inside of the duct 61 and the inside of the transmission case 42 communicate with each other.SELECTED DRAWING: Figure 3
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