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https://drivepatents.com/patents/1013639 · 20 Apr 2011
The truck has supporting rollers (6a, 6b) laterally arranged at a distance from a driving wheel. The supporting rollers are mounted in a swinging bracket (10) in a rotatable manner around a horizontal rotatable axis (D), where the bracket is mounted in a c...
https://drivepatents.com/patents/1073015 · 26 Oct 2005
A suspension system for a fork lift truck has two fixed support wheels (10) under the forks, one steerable rear drive wheel (4) and one or two rear castor mounted wheels (5a, 5b) fitted with a damped suspension. The cornering stability of the truck is impr...