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    • 3. 发明授权
    • Method for folding a polygonal container
    • 折叠多边形容器的方法
    • US4195555A
    • 1980-04-01
    • US915014
    • 1978-06-13
    • William L. Chase
    • William L. Chase
    • B31B3/00B65D5/06B65D5/68B31B3/74B31B1/90
    • B65D5/06B31B1/00B65D5/685
    • The method for forming a polygonal container from a blank comprises placing the blank over a polygonal cone having the same number of sides as the side walls of the polygon to be formed. The blank is inverted during placement over the cone so that the upper edges of the container side walls engage the sides of the cone and so that the bottom closure portion of the container is presented upwardly. The bottom closure is folded inwardly along preformed folding lines into a configuration comprising a plurality of triangular bottom panels equal in number to the side panels and a plurality of interconnecting webs each extending between a pair of adjacent bottom panels. Each bottom panel is hingedly connected to one of the side panels and is inclined upwardly from the lower edge of the side panel to which it is connected to form an acute angle therewith. Each bottom panel has two side edges which abut adjacent side edges of adjacent bottom panels, and having side webs on either side thereof hingedly connecting the bottom panel to an adjacent bottom panel. When the container is folded, the webs form a plurality of vertically disposed ribs which protrude downwardly from the bottom closure and which are arranged in a spoke like configuration. These ribs are fastened together at the center of the spoke like configuration with a clip which retentively engages the ribs.
    • 从坯料形成多边形容器的方法包括将坯料放置在具有与要形成的多边形的侧壁相同数量的边的多边形锥体上。 坯料在放置在锥体之前被倒置,使得容器侧壁的上边缘与锥体的侧面相接触,并且使得容器的底部封闭部分向上呈现。 底部封闭件沿着预成型的折叠线向内折叠成包括数量相等于侧板的多个三角形底板和多个相互连接的网,每个相互连接的网在一对相邻的底板之间延伸。 每个底板铰接地连接到一个侧板,并且从与其连接的侧板的下边缘向上倾斜以与其形成锐角。 每个底板具有邻接相邻底板的相邻侧边缘的两个侧边缘,并且在其两侧上具有将底板铰接连接到相邻底板的侧腹板。 当容器折叠时,腹板形成多个垂直设置的肋,其从底盖向下突出并且以轮辐状构造布置。 这些肋在辐条状结构的中心处被固定在一起,并具有与肋部保持接合的夹子。