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    • 18. 发明授权
    • Method and apparatus for tearing sections from a web
    • 从网上撕下部分的方法和装置
    • US3895751A
    • 1975-07-22
    • US37737273
    • 1973-07-09
    • JOHNSON & JOHNSON
    • SHEPHERD ROBERT CARL
    • A61F13/15B26F3/02D06H7/20B26F3/00
    • A61F13/15723B26F3/02D06H7/20Y10T225/14Y10T225/357Y10T225/393
    • This invention relates to a method of tearing sections from a continuous web of fibers without causing compression of the fibers at the severance line by grasping the web at spaced portions adjacent to the tearing area, and moving one portion relative to the other portion to stress and tear the web. An apparatus for accomplishing the tearing includes two juxtaposed pairs of jaws, or the like, which receive and engage an intermittently advanced web. One pair of jaws is then displaced from the juxtaposed position to stress and tear the web. The stressing and tearing action substantially eliminates any densified layer or thickened portions between the ends of the section and the engagement line while the engagement of the web creates a transverse densified line near the ends of the sections.
    • 本发明涉及一种从连续的纤维网撕裂切片的方法,而不会通过在与撕裂区域相邻的间隔部分处抓住腹板并使相对于另一部分的一部分移动到压力和 撕网。 用于完成撕裂的装置包括两个并置的夹爪对等,其接收和接合间歇性高级织物。 然后一对钳口从并置位置移位,以压力并撕开网。 应力和撕裂作用基本上消除了部分端部与接合线之间的任何致密化层或增厚部分,而纤维网的接合在部分的端部附近形成横向致密化线。