Patent ID: 8475109
Filing Date: 2013-07-02
Classification: B62B

Abstract:
1. A modular dolly adapted for movement along an underlying surface, comprising: a platform having a first end, a second end opposite the first end, a first side, and a second side opposite the first side, wherein each side of the platform includes a longitudinal member having an outer face defining a longitudinal channel and a lower passage formed therein; first and second non-steerable wheels disposed beneath the first end of the platform, each of the non-steerable wheels having a brake; first and second caster wheels disposed beneath the second end of the platform; first and second auxiliary wheel assemblies medially and removably disposed to the first and second sides of the platform, respectively, the auxiliary wheel assemblies having larger diameters than the non-steerable wheels and the caster wheels, the auxiliary wheel assemblies supporting the non-steerable wheels and the caster wheels clear of the underlying surface when the auxiliary wheel assemblies are installed upon the platform and the platform is generally parallel to the underlying surface, each of the auxiliary wheel assemblies has an axle and a platform attachment member extending from the axle normal thereto, the platform attachment member having: a primary ramp having a first end, a second end opposite the first end, a first side, and a second side opposite the first side, the primary ramp being selectively attached to the platform; and a pin selectively inserted through the passage in the plate extending from the platform attachment member and the lower passage in the longitudinal member to secure the auxiliary wheel assembly to the platform, the pin being removed to a release position to remove the auxiliary wheel assembly.