Back to results
US 4,231,566 AGranted
Sheet feed apparatus
AssigneeRicoh Company, Ltd.
InventorMinoru Suzuki
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeRicoh Company, Ltd.
InventorMinoru Suzuki
Estimating the term…
A sheet feed apparatus for use with a copying machine comprising a sheet stacking member for stacking recording sheets thereon, and a pair of sheet feed rollers for feeding the recording sheets one by one, which are arranged coaxially on a driving shaft disposed above the sheet stacking member, and one sheet feed roller is located at an appropriate position and the other sheet feed roller is movable along the driving shaft. The sheet stacking member can take two positions, a sheet feed position and a sheet replenishment position, by sliding the sheet stacking member in and out of the body of the copying machine. When the sheet stacking member is slid out of the body of the copying machine to the sheet replenishment position and recording sheets are stacked on the sheet stacking member and then slid into the body of the copying machine, the position of the movable sheet feed roller is automatically determined appropriately in accordance with a partition plate which is to be set in accordance with the size of the recording sheets.
A sheet feed apparatus for use with a copying apparatus comprising a sheet feed base mounted on the apparatus for movement between an inoperative sheet replenishing position and an operative sheet feeding position, support means for supporting a stack of recording sheets of different sizes on said feed base, sheet feeding means disposed above a stack of recording sheets disposed on said sheet support means, said feeding means including a drive shaft, a first feed roller means drivingly connected to said drive shaft, and a second feed roller means drivingly connected to said drive shaft, said second feed roller means being mounted for axial movement along said drive shaft, and means for shifting said second roller means axially of said drive shaft as said sheet feed base is moved between its operative and inoperative position so that said first and second roller means are optimately spaced along said drive shaft in accordance to the size of the recording sheets supported on said support means when said sheet feed base is disposed in its operative position.
A sheet feed device for use with a copying apparatus comprising a sheet feed base means mounted for movement between a sheet feeding position and a sheet replenishing position, said sheet base means including a base and opposed side plates, a fixed partition disposed between said side plates adjacent one end and a moveable partition disposed between said side plates in spaced relationship to said fixed partition, a sheet support means, means for mounting said sheet support means on said base for movement between an operative feeding position and inoperative non-feeding position, means for adjustably locating said moveable partition relative said fixed partition for accommodating therebetween a stack of recording sheets of a selected predetermined size, a sheet feeding means disposed above said sheet support means, said sheet feeding means including a drive shaft fixedly supported above said sheet support means, a first sheet roller means fixedly connected in driving relationship to said drive shaft, a second sheet roller means drivingly connected to said drive shaft and axially shiftable along said shaft, said base means being moveable between said sheet feeding position and replenishing position in a direction axially of said drive shaft, and said second roller means including means operatively connected thereto for engagement with said base means whereby said second roller means is optimately disposed along said shaft relative to said fixed roller in accordance to the selected size of the recording sheet supported on said sheet support means.
Dependencies are inferred from the claim text.