Paper-flattening device for a feeding apparatus and method of feeding a sheet of paper into a feeding apparatus
AssigneeBenq Corporation
InventorChun-Liang Yeh
Life of this patent
Estimating the term…
Abstract
A paper-flattening device includes a stationary seat unit to be mounted adjacent to a paper-supporting tray of a feeding apparatus, a spindle member disposed rotatably in the stationary seat unit, an arm member fixed on the spindle member for co-rotation therewith, and a cam unit disposed between and coupling the seat unit and the spindle member in such a manner that rotation of the spindle member in first and second directions results in movement of the spindle member together with the arm member to upper and lower positions. When at the lower position, the arm member slidably contact the paper in the tray to prevent curling and folding of the paper.
Claims14
A paper-flattening device for a feeding apparatus that includes a paper-supporting tray, a roller shaft, and a feed-in roller mounted on the roller shaft above the paper-supporting tray for feeding sheets of paper into the feeding apparatus, the paper-flattening device comprising:
- a stationary seat unit adapted to be mounted on the feeding apparatus adjacent to the paper-supporting tray;
- a spindle member disposed rotatably in said stationary seat unit, and having a top end projecting upwardly from said stationary seat unit;
- an arm member fixed on said top end of said spindle member for co-rotation therewith, projecting transversely from said spindle member, said arm member being adapted to extend over the paper-supporting tray so as to unfold the paper;
- and
- a cam unit disposed between and coupling said seat unit and said spindle member in such a manner that rotation of said spindle member in a first direction results in movement of said spindle member together with said arm member to an upper position, in which said arm member is moved away from the paper, and that rotation of said spindle member in a second direction opposite to said first direction results in movement of said spindle member together with said arm member to a lower position, in which said arm member is moved toward the paper.
A method of feeding a sheet of paper into a feeding apparatus that includes a paper-supporting tray, a roller shaft, and a feed-in roller mounted on the roller shaft above the paper-supporting tray for feeding sheets of paper into the feeding apparatus, the method comprising:
- placing the paper onto the paper-supporting tray;
- and
- flattening the paper by the use of a paper-flattening device that includes:
- a stationary seat unit adapted to be mounted on the feeding apparatus adjacent to the paper-supporting tray,
- a spindle member disposed rotatably in said stationary seat unit, and having a top end projecting upwardly from said stationary seat unit,
- an arm member fixed on said top end of said spindle member for co-rotation therewith, projecting transversely from said spindle member, said arm member being adapted to extend over the paper-supporting tray so as to unfold the paper, and
- a cam unit disposed between and coupling said seat unit and said spindle member in such a manner that rotation of said spindle member in a first direction results in movement of said spindle member together with said arm member to an upper position, in which said arm member is moved away from the paper, and that rotation of said spindle member in a second direction opposite to said first direction results in movement of said spindle member together with said arm member to a lower position, in which said arm member is moved toward the paper.
A method of feeding a sheet of paper into a feeding apparatus including a paper-supporting tray, the method comprising the steps of:
- placing the paper onto the paper-supporting tray;
- and
- flattening the paper on the paper-supporting tray.
Dependencies are inferred from the claim text.