Cushioning product and method with stitching
    1.
    发明授权
    Cushioning product and method with stitching 失效
    缓冲产品和拼接方法

    公开(公告)号:US06207249B1

    公开(公告)日:2001-03-27

    申请号:US09070231

    申请日:1998-04-30

    IPC分类号: B32B324

    摘要: A cushioning conversion machine, method and product characterized by a connecting assembly that provides a mechanical interlock between overlapped portions of sheet-like stock material to prevent “unzippering” of a low density cushioning product produced by the cushioning conversion machine. The connecting assembly comprises a pair of rotatable stitching members, a first one having a plurality of radially outwardly extending projections, or teeth, around the circumference thereof, with the projections having at least two axially spaced apart segments defining a recess therebetween. The second stitching member includes at least one axial punch segment which includes a peripheral edge portion dimensioned to be received in the recess in the first stitching member during rotation of the stitching members. The peripheral edge portion is cooperative with the projections of the first stitching member to produce at each corner edge thereof a row of slits in the overlapped portions of the sheet-like stock material, thereby forming at least one row of tabs for interlocking the overlapped portions of the stock material. The second stitching member may include another axial segment relatively adjacent the punch segment, such other axial segment having a plurality of radially outwardly extending projections meshing with the projections of one of the axial segments of the first stitching member. The stitching members may be formed by a plurality of flat disc members stacked side-by-side with the several axial segments being formed by one or more of the flat disc members.

    摘要翻译: 一种缓冲转换机,方法和产品,其特征在于连接组件,其提供片状原料的重叠部分之间的机械互锁,以防止由缓冲转换机产生的低密度缓冲产品的“解压缩”。 连接组件包括一对可旋转的缝合构件,第一个具有围绕其圆周的多个径向向外延伸的突起或齿,其中凸起具有至少两个轴向间隔开的段,在其间限定凹部。 第二缝合构件包括至少一个轴向冲头段,其包括周边边缘部分,该周边边缘部分的尺寸设计成在缝合构件旋转期间被容纳在第一缝合构件的凹部中。 周缘部与第一缝合构件的突起配合,在其每个角部边缘处在片状原料的重叠部分中产生一排狭缝,从而形成至少一排突片,用于将重叠部分 的库存材料。 第二缝合构件可以包括相对邻近冲压段的另一个轴向段,该另外的轴向段具有与第一缝合构件的轴向段之一的突起啮合的多个径向向外延伸的凸起。 缝合构件可以由并排堆叠的多个平板构件形成,其中多个轴向段由一个或多个平板构件形成。