Apparatus for holding stationary a stack of articles while lifti

Details Apparatus for holding stationary a stack of articles while lifti Apparatus for holding stationary a stack of articles while lifti

1990-12-28

1992-12-29

Bucci, David A.

Material or article handling

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

Unstacking apparatus

294 641, 4147962, 414929, B65G 5904, B65H 308, B65H 330

Patent

active

051747120

ABSTRACT:
On pallets loaded with several layers (tiers 11), relatively thin intermediate layers 13 made of cardboard or the like are usually located between the tiers 11. These intermediate layers have to be removed after a tier 11 has been unloaded. For this purpose, a suction lifter 16 with a suction plate 17 is provided, which lifts and discharges the free intermediate layer by means of a vacuum. To avoid undesirable relative displacements of the stacked articles (blank stacks 12), the suction lifter 16 is provided with holding-down devices 22. These devices 22 pass through openings 23 in the intermediate layer 13 and come to abut the blank stacks 12, such that the latter are fixed in place when the intermediate layer 13 is lifted. Profile members 31 are arranged on the suction lifter 16 for further securing the articles (blank stacks 12). These members 31 enter cavities 32 formed between adjacent articles (blank stacks 12) in a form-fitting positive manner.

REFERENCES:
patent: 4256428 (1981-03-01), Kitayama et al.
patent: 4383795 (1983-05-01), Wakamatsu et al.
patent: 4516762 (1985-05-01), Moltraiso et al.
patent: 4625953 (1986-12-01), Hamatani
patent: 4671723 (1987-06-01), Feldkamper
patent: 4911608 (1990-03-01), Krappitz et al.
patent: 4988264 (1991-01-01), Winski
patent: 4993915 (1991-02-01), Berger et al.
patent: 5040942 (1991-08-01), Brinker et al.
patent: 5048811 (1991-09-01), Hochbein

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