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    • 3. 发明授权
    • Address reading apparatus for mail article
    • 邮件地址阅读器
    • US4886596A
    • 1989-12-12
    • US110114
    • 1987-10-19
    • Tsutomu SasageMasahiko Noguchi
    • Tsutomu SasageMasahiko Noguchi
    • B65H7/14B07C1/18B07C3/08B07C3/10B07C3/14
    • B07C1/18B07C3/14Y10S209/90
    • The invention maintains the focus of a reader in a postal sorting and transporting system which is equipped to read an image of an address on either side of a mail article. The address reading apparatus uses two address readers disposed on opposite sides of a transfer path over which the mail articles travel. An address-carrying surface detector is disposed along the transfer path and upstream of the two address readers. Two floating roller pairs are provided at the inlet and the outlet of the address readers, to hold the mail article therebetween. A pressure roller driving mechanism responds to an output signal delivered from the address-carrying surface detector for selectively fixing one roller of either roller pair at a predetermined distance from the mail article's address carrying surface so that the distance between the address carrying surface and the appropriate address reader is kept constant. This constant distance fixing compensates for variations in the thickness of the mail article in order to maintain an accurate focus.
    • 本发明将阅读器的重点放在邮寄分拣和传送系统中,该系统被配备为读取邮件两侧的地址的图像。 地址读取装置使用两个地址读取器,这两个地址读取器设置在邮件文件所在的传送路径的相对两侧。 沿着传送路径和两个地址读取器的上游设置地址承载表面检测器。 在地址读取器的入口和出口处设置两个浮动辊对,以将邮件保持在其间。 压力辊驱动机构响应从地址承载表面检测器输出的输出信号,用于选择性地将两个辊对之间的一个辊与邮件的地址承载表面预定距离固定,使得地址承载表面与适当的 地址阅读器保持不变。 这种恒定的距离固定补偿邮件的厚度的变化,以保持准确的焦点。