JPS5670250A - Paper feeder using rigidity of paper - Google Patents

Abstract

PURPOSE: To obtain a small-sized paper feeder by providing electromagnets and movable pieces to be attracted thereby at least by three respectively along the conveying route of a rigid paper and conveying the paper by periodical repetitions of excitation and dis-excitation.

CONSTITUTION: For conveying a paper 3 as an arrow P shows, an electromagnet 1₃ is excited to hold the paper 3 between a movable piece 2₃ and itself, and subsequently, an electromagnet 1₂ is excited to hold the paper 3 between a movable piece 2₂ and itself. Since a space m' between the electromagnet 1₂ and the movable piece 2₂ is greater than a space m between other electromagnet 1₃ and movable piece 2₃ or the likes and the paper 3 is prevented from moving by the hold between the electromagnet 1₃ and the movable piece 1₃, the paper 3 is drawn in from the interval between an electromagnet 1₁ and a movable piece 2₁ and bent as dotted lines show against the rigidity of the paper. Meanwhile, after the electromagnet 1₁ is excited and the movable piece 2₁ is attracted to hold the paper 3 between, electromagnets 1₃ and 1₂ are dis-excited, and movable pieces 2₃ and 2₂ are respectively returned by the work of coil springs 4₃ and 4₂. The paper 3 recovers its bent and extended to the electromagnet 1₃. Consequently, the paper 3 is conveyed as the arrow P shows by repetitions of excitation and dis-excitation.

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