Transmission system for a document feeder
AssigneeUmax Data Systems Inc.
InventorsJeffrey Wun, Steven Chiu, Mark Chang
Life of this patent
Estimating the term…
Abstract
An improved transmission system for a document feeder, in which a constant one-way-rotating gear train is mounted in an output zone so as to cause a transmission shaft in the output zone to rotate in one direction only to send out a sheet of document no matter the driving gear rotates clockwise or counter-clockwise; therefore, as soon as a first sheet of document moves out of the scanning line without moving out of the output zone, the driving gear will change its rotation clockwise so as to have a next sheet of document fed into the scanning zone; therefore, the feeding distance between two sheets of document will be reduced, and consequently the whole feeding time for a document will be reduced, too.
Claims3
An improved transmission system for a document feeder comprising a driving gear to drive a gear train for feeding document, and said gear train comprising at least a transmission gear, an intermediate gear, a first gear and a second gear;
- said transmission gear being driven with said driving gear;
- said intermediate gear and said first gear also being driven with said transmission gear;
- said intermediate gear driving said second gear;
- said first gear and said second gear rotating in opposite directions so as to cause one-way bearings of said first gear and said second gear to drive a transmission shaft thereof upon said driving gear rotating either clockwise or counter-clockwise, allowing said transmission shaft to rotate in one direction only to send one sheet of document out of said feeder.
Dependencies are inferred from the claim text.