Method for blow-molding an automotive instrument panel having an integral airbag door
    2.
    发明授权
    Method for blow-molding an automotive instrument panel having an integral airbag door 失效
    具有一体式安全气囊门的汽车仪表板的吹塑方法

    公开(公告)号:US06174470B1

    公开(公告)日:2001-01-16

    申请号:US09205315

    申请日:1998-12-04

    IPC分类号: B29C4514

    摘要: A method for forming an automotive instrument panel having a concealed door comprising a series of steps. A plastic parison is extruded to form the substrate layer of the instrument panel. The parison has first and second walls. The parison is placed within a mold and the first wall is contacted with the second wall to form a hinge. The area of contact forms a bond between the first and second walls. A different portion of the first and second walls are contacted to form an opening path. The opening path intersects the hinge. The opening path usually has a thickness much less than the thickness of the first and second walls to form an easily fracturable area. The door swings on the hinge to open. A elongated section of material on the second wall, enables the second wall to wrap along the hinge when the door is opened.

    摘要翻译: 一种用于形成具有隐蔽门的汽车仪表板的方法,包括一系列步骤。 将塑料型坯挤出以形成仪表板的基底层。 型坯有第一和第二个墙壁。 将型坯放置在模具内,第一壁与第二壁接触以形成铰链。 接触区域在第一和第二壁之间形成粘结。 第一和第二壁的不同部分被接触以形成开口路径。 打开路径与铰链相交。 开口路径通常具有比第一和第二壁的厚度小得多的厚度,以形成容易断裂的区域。 门在铰链上摆动打开。 在第二壁上的细长部分的材料使得当门打开时第二壁能够沿着铰链包裹。