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    • 5. 发明公开
    • A letter opener
    • Brieföffner。
    • EP0350646A1
    • 1990-01-17
    • EP89110872.2
    • 1989-06-15
    • Haage, Dieter
    • Haage, Dieter
    • B43M7/00
    • B43M7/008Y10S30/03Y10S83/912Y10T83/566Y10T83/8817
    • A device for opening envelopes which comprises a rotatable shaft (11) having an elongate recess (17) in line with the axis of the shaft. A first cutting blade (18) is located on the top edge of the recess and a second cutting blade (19) is secured to a base (13) which supports the shaft (11). The first and second blades are positioned such that they co-act in a shearing action on rotation of the shaft (11). To open an envelope, the edge of the envelope is positioned within the recess (17) and the shaft (11) is rotated causing the blades (18 & 19) to co-act resulting in a sliver being cut from the envelope.
    • 一种用于打开信封的装置,其包括具有与所述轴的轴线成直线的细长凹部(17)的可旋转轴(11)。 第一切割刀片(18)位于凹部的顶部边缘上,并且第二切割刀片(19)固定到支撑轴(11)的基座(13)上。 第一和第二叶片被定位成使得它们在对轴(11)的旋转的剪切作用中共同作用。 为了打开信封,信封的边缘定位在凹部(17)内并且轴(11)旋转,使得叶片(18和19)共同作用,导致从信封切割的条子。