Equalizing system for load lifting apparatus

Details Equalizing system for load lifting apparatus Equalizing system for load lifting apparatus

B - Operations, Transporting

66

F

214/13

B66F 9/08 (2006.01)

Patent

CA 1158607

Equalizing System for Load Lifting Apparatus Abstract Lift trucks having two laterally spaced apart motors for lifting a load on a carriage provide excellent forward visability for operators thereof. When the load is unevenly disposed upon the carriage, or the lift truck encounters uneven terrain, the lifting components of the lift truck are subjected to unequal stresses. Such unequal stresses, if uncorrected, reduce the useful life of the lifting components, particularly a pair of chain assemblies associated with the carriage. A load equalizing system has first and second guide assemblies each having a slot and a pin which connects each motor to a movable structure and maintains substantially equal tension in the pair of chain assemblies when off-center loading is encountered. The load equalizing system permits one motor to move a predetermined distance relative the other in response to off-center loading, which equalizes tension of the chain assemblies and which thus extends the useful operational life of the lifting components.

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