Apparatus and process relating to a preform and a container with
geodesic reinforcement
    56.
    发明授权
    Apparatus and process relating to a preform and a container with geodesic reinforcement 失效
    与预制件相关的装置和方法以及具有测地线加固的容器

    公开(公告)号:US5047271A

    公开(公告)日:1991-09-10

    申请号:US541719

    申请日:1990-06-21

    IPC分类号: B29C49/00 B65D1/02

    摘要: A preform (10) for producing a plastic preform for forming blow molded plastic containers which comprises: a neck portion (16) defining an opening; a tubular sidewall portion (24) depending therefrom; and an integral base structure (28) depending from the tubular sidewall portion to a closed end (32); the preform having an outside wall face and an inside wall face with one of these, in the base structure, having integrally formed thereon a plurality of filets (36), extending longitudinally of the preform and defining a reinforcement (38) of varying thickness spaced from the closed end and circumscribing the base structure, wherein the filets decrease progressively in width and radial thickness at least from the reinforcing ring toward the closed end. The preform is capable of forming a blow molded plastic container with a bottom portion (130) having a reinforcement of circumferentially continuous radially extending alterations in wall thickness with a regularly undulating cross-section along the circumference. Preferably the filets are integral with the inside wall face. The invention also covers a mold-core rod combination for making such a preform, a process of using such a preform to make plastic containers by stretch/blow molding and containers including containers when produced from said preforms or combinations, or by said process.

    摘要翻译: 一种用于制造用于形成吹塑成型塑料容器的塑料预成型件的预成型件(10),其包括:限定开口的颈部(16) 从其垂下的管状侧壁部分(24); 以及从管状侧壁部分到封闭端(32)的一体式基座结构(28); 预成型件具有外壁面和内壁面,其中的一个在基部结构中在其上整体地形成有多个锉刀(36),其沿预成型件的纵向延伸并且限定具有变化的厚度间隔的加强件(38) 从封闭端并限制基部结构,其中,至少从加强环朝向封闭端,所述锉刀的宽度和径向厚度逐渐减小。 预成型件能够形成具有底部(130)的吹塑塑料容器,底部部分(130)具有周向连续径向延伸的壁厚变化的加强件,沿着圆周具有规则的波浪形横截面。 优选地,锉刀与内壁面成一体。 本发明还包括用于制造这种预成型件的模芯棒组合,使用这种预成型件通过拉伸/吹塑成型制造塑料容器的过程,以及当从所述预成型件或组合制造时包括容器的容器,或通过所述方法。