SHEET FEEDING DEVICE

PURPOSE:To provide a sheet feeding device in which separation performance can be automatically regulated independently of the kind, condition, and service environment of the sheet by providing a first energizing means for energizing a friction means to a rotary feeding means and a second energizing...

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Bibliographic Details
Main Author YOKOTA MASAHIKO
Format Patent
LanguageEnglish
Published 18.01.1994
Edition5
Subjects
CONVEYING
HANDLING THIN OR FILAMENTARY MATERIAL
HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES
PACKING
PERFORMING OPERATIONS
STORING
TRANSPORTING
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Summary:PURPOSE:To provide a sheet feeding device in which separation performance can be automatically regulated independently of the kind, condition, and service environment of the sheet by providing a first energizing means for energizing a friction means to a rotary feeding means and a second energizing means for energizing the friction means in the reverse direction to the sheet feeding means. CONSTITUTION:In such a condition that a sheet S is inserted and the foremost end thereof does not reach a separation part, a friction plate 2 moves downstream as a separation roller 1 rotates. At that time, a spring 4 is extended and a tension is caused in the friction plate 2. At the same time, a guide member 5 is pushed up to contract a spring 3, and the pressing force N of the friction plate 2 is increased to heighten the sheet feeding force of the separation roller 1. When a second sheet S2 reaches the separation part, the second sheet S2 is drawn back upstream due to the difference in the magnitude between the pressing force N and the tension F. When the friction plate 2 is drawn back, the pressing force N decreases, and the load to be added to the first sheet S1 decreases.
Bibliography:Application Number: JP19920171083