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Double-feed prevention device in paper feeding apparatus

  • US 4,588,181 A
  • Filed: 03/16/1984
  • Issued: 05/13/1986
  • Est. Priority Date: 03/18/1983
  • Status: Expired due to Term
First Claim
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1. A double-feed prevention device to feed single sheets of paper from a stack of paper sheets placed on a paper feeding plate including a paper feeding roller in opposition to a paper separating means provided at an end of a resiliently biased swingable lever means arranged to move the paper separating means against the paper feeding roller and being adapted for pivotal movement in a substantially vertical plane, comprising a locking means secured by guiding means to a stationary supporting means, said locking means being adapted to slideably move parallel to said swingable lever means plane of movement, said locking means having a part thereof to be engaged with a part of the swingable lever means to prevent the paper separating means from moving away from the paper feeding roller, said locking means being biased to slide in a direction such that said locking means part is urged into engagement with said swingable lever means part and moves in response to movement of said swingable lever means part.

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