PROBLEM TO BE SOLVED: To provide a technology capable of reducing stress concentration caused by torsion, in a circular tube material of a SUSPENSION DEVICE into which a load is input from a wheel side.SOLUTION: A load is input into a circular tube member 12 such as an axle beam from a wheel side. A first hole part 24a is formed by having four approximately-linear sides on an outer peripheral surface of the circular tube member 12, and has a pair of two parallel sides. The first hole part 24a is formed in a shape in which an opposed direction of the two parallel sides on one side is inclined with respect to a horizontal direction of a vehicle and in which the opposed direction of the two parallel sides on one side and an opposed direction of the two parallel sides on other side are orthogonal to each other.SELECTED DRAWING: Figure 3

    【課題】車輪側から荷重が入力されるサスペンション装置の円管部材において、捩りによる応力集中を低減できる技術を提供する。【解決手段】例えばアクスルビームなど、車輪側から荷重が入力される円管部材12において、第1孔部24aは、円管部材12の外周面に略直線状の四辺を有して形成され、平行な2辺を一対有する。第1孔部24aは、一方の平行な2辺の対向方向が車両左右方向に対して傾斜し、一方の平行な2辺の対向方向と他方の平行な2辺の対向方向とが直交して形成されている。【選択図】図3


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    Title :

    CIRCULAR TUBE MATERIAL


    Additional title:

    円管部材


    Contributors:

    Publication date :

    2017-07-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge



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