AIR SUCTION TYPE SHEET DOCUMENT SUCKING UNIT

PURPOSE:To prevent a failure in suction by repeating a sucking operation on detecting that a sheet document is not sucked, and keeping a fixed range of distance between the uppermost sheet document and the next sheet document to let air flow therebetween. CONSTITUTION:On starting the feed of a sheet...

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Bibliographic Details
Main Author NISHIBORI TOSHIKI
Format Patent
LanguageEnglish
Published 27.12.1983
Subjects
CINEMATOGRAPHY
CONVEYING
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HANDLING THIN OR FILAMENTARY MATERIAL
HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES
HOLOGRAPHY
MAGNETOGRAPHY
PACKING
PERFORMING OPERATIONS
PHOTOGRAPHY
PHYSICS
STORING
TRANSPORTING
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Summary:PURPOSE:To prevent a failure in suction by repeating a sucking operation on detecting that a sheet document is not sucked, and keeping a fixed range of distance between the uppermost sheet document and the next sheet document to let air flow therebetween. CONSTITUTION:On starting the feed of a sheet document a paper feed table plate 40 is lifted up in the direction of an arrow C to a position where the uppermost sheet document 39' pushes up the base of a sucking portion 5 and a pressure roller 16 to some degree, so that the forward end of the base of the sucking portion 5 and the upper surface of the leading end of the sheet 39' are opposed to each other at a distance delta. In such a condition, air is sucked from an air suction hole 6 disposed on the base of the sucking portion 5. The distance delta is kept within a fixed range by a flexible duct 3. Subsequently, the whole unit is gradually accelerated and rotated in the direction of an arrow E to let air flow easily between the uppermost sheet 39' and the following sheet, so that the sheets can be easily separated.
Bibliography:Application Number: JP19820109455