Automatic retard adjustment mechanism for sheet feeding

Sheet feeding or delivering – Feeding – By means to convey sheet

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

271 311, 271122, B65H 506

Patent

active

046131272

ABSTRACT:
A sheet feeding apparatus includes a retard mechanism to prevent the inadvertent feeding of doubled or overlapped sheets. The retard mechanism includes a plurality of belts in an assembly positioned adjacent to a sheet feeding roller, and rotating in such a direction as to retard the sheets being fed. The retard assembly is mounted on the free end of a lever arm pivotally secured adjacent to its other end to the base of the sheet feeding apparatus. The lever arm with the retard assembly mounted thereon is spring-urged toward the feed roller, but may be moved slightly away from said roller to accommodate the thickness of the sheet being fed between the feed roller and the retard assembly. A dual spring arrangement contained in the lever arm permits the lever arm to move with relatively little force to accommodate passage of a single sheet, but to resist more vigorously any additional movement, such as would be required for the passage of double or overlapped sheets. A one-way retaining device permits movement of the lever arm and retard assembly toward the feed rollers as the roller and belts wear, but prevents movement away from said roller except for the limited movement permitted to accommodate sheets during feeding. The retaining device may be released to permit the lever arm and retard assembly to be swung away from the feed roller for replacement of the feed roller and retard belts when worn.

REFERENCES:
patent: 2635874 (1953-04-01), La Bore
patent: 3052465 (1962-09-01), David
patent: 3525518 (1970-08-01), Oaten
patent: 4496339 (1985-01-01), Moll
patent: 4552353 (1985-11-01), Tanaka

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Automatic retard adjustment mechanism for sheet feeding does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic retard adjustment mechanism for sheet feeding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic retard adjustment mechanism for sheet feeding will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-762617

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.