To improve a bending process by a bending machine on a bent portion of a hinge arm supporting an opening/closing lid for a vehicle so that the lid is rotatable and improve productivity, quality, and a yield rate of the hinge arm.SOLUTION: A hinge arm 30 is formed of three elements of a bent portion 31 formed from a hollow pipe member located at an intermediate portion, an attachment portion 32 fixed to an end of the bent portion 31 to support a lid, and a shaft support portion 33 fixed to the other end of the bent portion 31 to form a rotation center of the hinge arm 30. Thus, the bent portion 31 can be formed in a simple curved shape such as an arc shape that can be easily processed and bent by press molding. The attachment portion 32 and the shaft support portion 33 that are separate members can be formed by sheet metal stamping and can be fixed to the bent portion 31 by indirect spot welding. With such a configuration, processing on the bent portion 31 is facilitated. In addition, hole drilling on the bent portion 31 can be completely eliminated, and a wiring harness 50 is allowed to be inserted to a hollow portion of the bent portion 31.SELECTED DRAWING: Figure 1

    【課題】車両用の開閉式リッドを回動自在に支持するヒンジアームの湾曲部のベンディングマシンによる曲げ加工を改善し、ヒンジアームの生産性、品質、歩留まりの向上を図る。【解決手段】ヒンジアーム30を、中間部に位置する中空パイプ材からなる湾曲部31と、湾曲部31の一端に固定されてリッドを支持する取付け部32と、湾曲部31の他端に固定されてヒンジアーム30の回動中心を形成する軸支部33の3要素から構成する。これにより、湾曲部31は加工容易なプレス成型による曲げ加工も可能な円弧状などのシンプルな湾曲形状とすることができる。別部材となった取付け部32と軸支部33は板金プレス加工で形成され、それぞれの湾曲部31への固定はインダイレクトスポット溶接で可能となる。かかる構成により、湾曲部31の加工は容易となるほか、湾曲部31への穴加工が全廃でき、湾曲部31の中空部内へのワイヤハーネス50の挿通も可能になる。【選択図】図1


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    Title :

    HINGE ARM OF OPENING/CLOSING LID, METHOD OF MANUFACTURING THE HINGE ARM, AND LID OPENING/CLOSING MECHANISM WITH THE HINGE ARM


    Additional title:

    開閉式リッドのヒンジアーム、該ヒンジアームの製造方法、および該ヒンジアームを備えたリッド開閉機構


    Contributors:

    Publication date :

    2019-10-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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