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    • 2. 发明授权
    • Apparatus for perforating webs of photosensitive material in copying
machines or the like
    • 用于在复印机等中对感光材料的纤网进行穿孔的装置
    • US4195541A
    • 1980-04-01
    • US912057
    • 1978-06-02
    • Horst WildnerHeinz KolblAlois Zachmeier
    • Horst WildnerHeinz KolblAlois Zachmeier
    • B26D5/08B26F1/02
    • B26D5/086B26D5/08B26F1/02Y10T83/8768Y10T83/8785Y10T83/8853Y10T83/8881
    • Apparatus for making holes in a web of photosensitive material which is transported in a copying machine has an electromagnet with a reciprocable armature connected to one leg of a U-shaped carrier. The other leg of the carrier supports a material removing tool which penetrates through the web when the electromagnet is energized. The carrier is held against wobbling by a ball bearing which is connected to its one leg and extends with minimal clearance between two parallel guide faces which are machined into a stationary holder for the electromagnet. The holder has a plate-like extension with a hole which receives the tip of the tool subsequent to penetration of such tip through the web. The tool is normally located at one side of the plane of the web, and the extension is located at the other side of such plane. The clearance between the bearing and the guide faces is less than that clearance which would permit such lateral movement of the tool that the latter would fail to penetrate into the hole of the extension in response to energization of the electromagnet.
    • 用于在复印机中传送的感光材料卷材上的孔的设备具有电磁铁,其具有连接到U形载体的一个支腿的往复电枢。 载体的另一支腿支撑当电磁铁通电时穿过网状物的材料去除工具。 承载件通过滚珠轴承保持抵抗摆动,该滚珠轴承连接到其一个支腿并以两个平行的引导面之间的最小间隙延伸,该平行的引导面被加工成用于电磁体的固定保持架。 保持器具有带有孔的板状延伸部,该孔在该尖端穿过腹板后接收工具的尖端。 工具通常位于纸幅平面的一侧,延伸部位于该平面的另一侧。 轴承和导向面之间的间隙小于允许工具的这种侧向运动的间隙,后者将不能够响应于电磁体的通电而渗透到延伸部的孔中。