To suppress stress concentration on an edge of a through-hole provided in a trailing arm and on a corner of a collar inserted in the through-hole, in a mounting-part structure for a trailing arm for mounting a further member on the trailing arm of a vehicle body via the collar with a bolt.SOLUTION: A collar 21 includes a cylindrical portion 21v and a flange portion 21d extending radially outside from an end of the cylindrical portion 21v, and has, at a first corner 21f and a second corner 21p between the cylindrical portion 21v and the flange portion 21d, a first curved surface portion 21g and a second curved surface portion 21q, which are receding curved surfaces. An end of a trailing arm has a collar through-hole 11r in which the collar 21 is inserted. An edge 25q of the collar through-hole 11r has a through-hole-side curved surface portion 25r, which is a projecting curved surface abutting on the first curved surface portion 21g and the second curved surface portion 21q.SELECTED DRAWING: Figure 8

    【課題】車体に備えるトレーリングアームにカラーを介して他部材をボルトで取り付けるトレーリングアームの取付部構造において、トレーリングアームに備える貫通孔の縁部、および貫通孔に挿入されたカラーの隅部の応力集中を抑制する。【解決手段】カラー21は、筒部21vと、筒部21vの端部から径方向外側に延びるフランジ部21dと、を備え、筒部21vとフランジ部21dとの第1隅部21fおよび第2隅部21pに凹状の曲面とされた第1曲面部21gおよび第2曲面部21qを備え、トレーリングアームの端部は、カラー21が挿入されるカラー貫通孔11rを備え、カラー貫通孔11rの縁部25qは、第1曲面部21gおよび第2曲面部21qに当接する凸状の曲面とされた貫通孔側曲面部25rを備えている。【選択図】図8


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    Titel :

    MOUNTING-PART STRUCTURE FOR TRAILING ARM


    Weitere Titelangaben:

    トレーリングアームの取付部構造


    Beteiligte:

    Erscheinungsdatum :

    2022-10-05


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge / F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile



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