A first and second pipe materials forming a front side frame are arranged in an up-and-down direction in a first horizontal portion, in a left-and-right direction in a second horizontal portion, and replaced from the up-and-down direction to the left-and-right direction in an inclined portion between the first horizontal portion and the second horizontal portion, and at least in the first horizontal portion and the second horizontal portion, the first and second pipe materials are welded to each other by welds, and therefore, it becomes possible to change in the longitudinal direction the cross-sectional shape or bending stiffness of the front side frame formed by joining the first and second pipe materials without changing the cross-sectional shapes thereof in the longitudinal direction, thus providing the front side frame that has a light weight but has excellent impact absorption performance at the time of a collision.


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    Title :

    Automobile chassis frame structure


    Contributors:

    Publication date :

    2015-08-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B62D MOTOR VEHICLES , Motorfahrzeuge



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