Storage and retrieval unit

Details Storage and retrieval unit Storage and retrieval unit

2006-12-19

2006-12-19

Keenan, James W. (Department: 3652)

Traversing hoists

Having means to prevent or dampen load oscillations

Antisway

C294S081400

Reexamination Certificate

active

07150367

ABSTRACT:
A storage and retrieval unit comprises a supporting carriage which is movable along a rack aisle on at least one substantially horizontal supporting rail by a drive. A vertically adjustable lifting platform is suspended from the supporting carriage via at least three traction devices. In order to prevent the lifting platform from being laterally deflected or starting to oscillate during accelerations of the supporting carriage, a stabilizing device is provided. The latter comprises at least three traction devices fastened to the sides of the lifting platform which are opposite in the direction of travel. At least two traction devices run to at least two fastening points arranged in the region of one end of the aisle; at least one further traction device runs to a fastening point arranged in the region of the other end of the aisle. The effective length of each traction device between the lifting platform and the fastening point can be changed by a drive. The latter is controlled by a control system in such a way that all the traction devices are taut in each desired position of the lifting platform.

REFERENCES:
patent: 3567040 (1971-03-01), Thomson
patent: 4784420 (1988-11-01), Makino et al.
patent: 6439407 (2002-08-01), Jacoff et al.
patent: 2005/0042063 (2005-02-01), Ehrenleitner
patent: 2553221 (1975-11-01), None
patent: 4326946 (1995-09-01), None
“F + H Fordern und Heben”, 52 (Jul. 2002) No. 7, p. 461.

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