To reduce a wall thickness of a hub attachment face while securing required rigidity even if thinning a plate thickness of the hub attachment face by enhancing durability and stiffness performance with respect to inputs in a variety of directions from tires, and to secure light weight and favorable internal quality even if trailing arms are molded by a die-cast method.SOLUTION: In trailing arms 3 arranged at left-and-right both sides of a vehicle width direction, and having at least hub attachment parts 32, a hub attachment part 32A has a hub attachment face 32b at which an attachment hole 32a is formed, and a first reinforcing structure 36 extending to a vertical direction with respect to the hub attachment face 32b, and continuously arranged so as to surround the attachment hole 32a is arranged at a periphery of the attachment hole 32a.SELECTED DRAWING: Figure 5

    【課題】タイヤからの様々な方向の入力に対して耐久性能及び剛性性能を上げ、ハブ取付面の板厚を薄くしても要求される剛性を確保しながら、ハブ取付面の肉厚を低減させることが可能であり、ダイカスト法で成形したとしても、軽量で良好な内部品質を確保することにある。【解決手段】車両幅方向の左右両側に配置され、少なくともハブ取付部32を有するトレリングアーム3において、ハブ取付部32Aは、取付孔32aが設けられたハブ取付面32bを有し、取付孔32aの周囲には、ハブ取付面32bに対して鉛直方向へ延び、かつ取付孔32aを囲うように連続して配置された第1の補強構造部36が設けられている。【選択図】図5


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    Title :

    TRAILING ARM


    Additional title:

    トレリングアーム


    Contributors:

    Publication date :

    2018-12-27


    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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