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    • 26. 发明授权
    • Non-binding zipper
    • 无约束力的拉链
    • US5497535A
    • 1996-03-12
    • US254883
    • 1994-06-06
    • Patrick W. Kloor
    • Patrick W. Kloor
    • A44B19/26A44B19/00
    • A44B19/265Y10T24/258Y10T24/2582Y10T24/2584
    • A zipper of the type having two tapes with interconnecting teeth, a slide having a front and rear and including a divider to separate and mesh the teeth in cooperation with a pull tab attached to the slide, includes spaced wing segments formed on the slide in proximity to the front of the slide. The spaced wing segments present a profile at the front or leading edge of the slide, in which the profile takes the form of a plow. The plow-like profile is formed as a beveled surface at the leading edge, and is thus adapted to force extraneous material such as threads, fabric, and the like, away from engagement with the interconnecting teeth when the zipper is zipped to the zipped-up condition. The trailing edge, or rear, of the slide may similarly be beveled to exclude unwanted fabric when the zipper is unzipped.In an additional embodiment a bead or ridge or land is provided on the tapes running parallel with the central longitudinal axis of the tapes to provide an additional means for preventing engagement of extraneous material in the teeth.
    • 具有两个具有相互连接的齿的带的拉链,具有前后的滑动件,并且包括分隔件,用于与附接到滑块的拉片配合地分离和啮合齿,包括间隔开的翼段,其在接近的载玻片上形成 到幻灯片的前面。 间隔的翼段在滑块的前缘或前缘呈现轮廓,其中轮廓采取犁的形式。 犁状轮廓在前缘形成为倾斜表面,并且因此适于在拉链拉链到拉链状轮廓时强制外部材料例如螺纹,织物等,以避免与互连齿的接合, up状态。 滑动件的后缘或后部可以类似地被倒角以在拉链拉链时排除不需要的织物。 在另外的实施例中,在与带的中心纵向轴线平行延伸的带上提供珠或脊或脊,以提供用于防止外来材料在牙齿中接合的附加装置。