Friction wheel separator for separating sheetlike items

Details Friction wheel separator for separating sheetlike items Friction wheel separator for separating sheetlike items

2006-06-06

2006-06-06

Matecki, Kathy (Department: 3653)

Sheet feeding or delivering

Feeding

Separators

Reexamination Certificate

active

07055817

ABSTRACT:
A friction wheel singler is proposed for singling sheet material, in particular bank notes, comprising sheet magazine5for receiving stack of sheets1,singling cylinder2having one or more friction elements4for contacting and conveying sheet1ato be singled out of the magazine, and retaining device3forming with singling cylinder2singling gap7through which sheets1ato be singled out of the magazine are conveyed one by one, retaining device3having one or more friction areas3afor contacting sheets1ato be singled out of magazine5.Friction elements4of singling cylinder2and friction areas3aof retaining element3have the same friction material, whereby different frictional forces transferred to sheet1aby singling cylinder2,on the one hand, and retaining device3,on the other hand, are obtained by selecting the contact area between friction elements4of singling cylinder2and sheet1ato be singled to be substantially larger than the contact area between friction areas3aof retaining element3and sheet1ato be singled. Any further contact areas of retaining device3and/or singling cylinder2with the sheet to be singled have a substantially lower coefficient of friction than the friction material of friction elements4of singling cylinder2and friction areas3aof retaining element3.According to a special aspect of the invention, it is proposed that the sheet material is deposited in sheet magazine5on driven feed rolls11to14to guarantee a reliable supply of sheets to be singled to singling gap7regardless of the stack height.

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