Device for removing flat articles from a stack

Details Device for removing flat articles from a stack Device for removing flat articles from a stack

1997-10-07

1999-08-03

Keenan, James W.

Material or article handling

Apparatus for moving intersupporting articles into, within,...

Unstacking apparatus

4147969, 414797, 271 183, 271 33, 271 94, B65G 5902

Patent

active

059316357

ABSTRACT:
The device for removing flat articles from a stack comprises at least one roller which contacts the uppermost article of a stack and is rotatable about a shaft and whose circumferential surface is covered by a layer consisting of a resilient material. The resilient layer positioned on the circumferential surface of the roller includes a number of suction cups. The roller is designed as a hollow roller which includes a mechanical device by which the suction cups in the resilient layer on the circumferential surface of the roller can be operated by partial deformation of said resilient layer. The suction cups are formed by depressions in the resilient layer on the circumferential surface of the roller, said depressions cooperating with one bore each in the wall of the roller.

REFERENCES:
patent: 824401 (1906-06-01), Baumgartner
patent: 4350466 (1982-09-01), Bahr et al.
patent: 4758126 (1988-07-01), Johnson et al.
patent: 5061231 (1991-10-01), Dietrich et al.
patent: 5149077 (1992-09-01), Martin et al.
patent: 5489360 (1996-02-01), Shimizu et al.
patent: 5511936 (1996-04-01), Goldkuhle
patent: 5540423 (1996-07-01), Nakano
patent: 5775871 (1998-07-01), Redden

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