PROBLEM TO BE SOLVED: To provide a vehicle body frame of a two-wheeled vehicle which can connect a support member made of a ferrous material (for example, a step bracket for supporting a main step) to a vehicle body frame side member without using a bolt.SOLUTION: A pivot bracket 34 is made of an aluminum alloy, and a step bracket 43 is made of a ferrous material. The step bracket 43 is joined to a seat 53 by a laser welding bead 49. Since the step bracket 43 can be attached to the pivot frame 34 without using a bolt, the weight can be reduced for the bolt. Because the laser welding bead 49 is less visible, the appearance is enhanced.

    【課題】ボルトを使用しないで、鉄系材料からなる支持部材(例えばメインステップを支持するステップブラケット)を車体フレーム側部材に連結することができる二輪車の車体フレームを提供することを課題とする。【解決手段】ピボットブラケット34はアルミニウム合金製であり、ステップブラケット43は鉄系材料からなる。ステップブラケット43をレーザ溶接ビード49で座53に接合する。【効果】ボルトを用いることなく、ステップブラケット43をピボットフレーム34に取付けることができたので、ボルトの分は重量の軽減が図れる。レーザ溶接ビード49が目立たないため、外観性も高まる。【選択図】図7


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    Title :

    VEHICLE BODY FRAME FOR TWO-WHEELED VEHICLE


    Additional title:

    二輪車の車体フレーム


    Contributors:

    Publication date :

    2015-11-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62K Fahrräder , CYCLES



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