Single-motor grab winches for four-rope grab operation have the disadvantage that the holding rope is kept tight by means of a slip clutch susceptible to wear. By means of the invention, the holding rope is permanently kept tight, to a very large extent free of wear, by a separate motor which acts on the holding drum during the grab lift.
申请公布号
DE4319900(A1)
申请公布日期
1994.12.22
申请号
DE19934319900
申请日期
1993.06.16
申请人
NOELL GMBH, 97080 WUERZBURG, DE
发明人
ZEHNER, WOLFGANG, 8700 WUERZBURG, DE;ZIERLEIN, BERNHARD, 8702 KIST, DE
