The present invention relates generally to a trolley (10) comprising two castor wheel assemblies (12A9 and (12B) mounted to a trolley frame (14). The castor wheel assemblies (12A/12B) are mounted toward a rear of the trolley frame (14) whereas another pair of conventional castors (16A) and (16B) are mounted to the front of the trolley frame (14). The castor wheel assemblies (12A/12B) are not identical insofar as swivelling of the assemblies is limited in a direction inwardly of the trolley (10) only. It has been found that limited swivelling of one of the castor wheel assemblies only such as (12A) at an offset angle (18) provides more efficient guided steering of the trolley (10).
Castor wheel assembly
2017-08-10
Patent
Elektronische Ressource
Englisch
IPC: | B60B VEHICLE WHEELS , Räder für Fahrzeuge |