Abstract A wheel assembly comprising: a wheel coupled to a constant force mechanism, the wheel being displaceable in at least one dimension; and the constant force mechanism imparts a substantially constant force on the wheel in the at least one dimension. A method of indicating a maintenance requirement, comprising: providing a sensor configured to measure a status of a wheel assembly on a material handling vehicle; measuring the status of the wheel assembly; and communicating a signal representing the status of the wheel assembly and providing an indication for maintenance of the wheel assembly. 64 g0 52 Fig. 5
CASTER WHEEL WITH CONSTANT FORCE MECHANISM
2019-01-17
Patent
Electronic Resource
English