Sheet feeding apparatus
First Claim
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1. Apparatus for singly feeding sheets of paper from a stack comprising:
- guide means for positioning the stack, said guide means including a fixed guide element and an adjustable guide element defining a medial line equidistant from said fixed and adjustable guide elements;
a rotatable roller fixed in position so that the center of said roller length is disposed from said medial line toward said fixed guide when said adjustable guide is at a maximum distance from said fixed guide; and
means, cooperating with the roller, for limiting the number of sheets frictionally engaging said roller to one at a time, said limiting means being fixed in position so that said medial line passes through said limiting means when said adjustable guide is at a maximum distance from said fixed guide.
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Abstract
A sheet feeding apparatus that can be adjusted to feed various sized sheets includes a fixed paper guide and an adjustable paper guide. A roller in cooperation with a limiting element insures that only a single sheet is drawn from a stack. To prevent uneven feeding and wrinkling, the center of the roller is biased toward the fixed guide from the medial line between the guides when they are separated by a maximum distance. Preferably, the length of the limiting element is shorter than the length of the roller, and when the guides are separated by a maximum distance the medial line between the guides falls along an edge of the limiting means.
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Citations
7 Claims
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1. Apparatus for singly feeding sheets of paper from a stack comprising:
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guide means for positioning the stack, said guide means including a fixed guide element and an adjustable guide element defining a medial line equidistant from said fixed and adjustable guide elements; a rotatable roller fixed in position so that the center of said roller length is disposed from said medial line toward said fixed guide when said adjustable guide is at a maximum distance from said fixed guide; and means, cooperating with the roller, for limiting the number of sheets frictionally engaging said roller to one at a time, said limiting means being fixed in position so that said medial line passes through said limiting means when said adjustable guide is at a maximum distance from said fixed guide. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification