Patent ID: 8653416

Claim:
A portable engine driven welder, comprising: a case enclosing an internal combustion engine and a welding generator therein, the case including, a bottom wall; a pair of sidewalls extending upwardly from side edges of the bottom wall; a back wall extending between and interconnecting the sidewalls at a back end of the case; and a front wall extending between and interconnecting the sidewalls at a front end of the case, the front wall of the case housing controls for the portable engine driven welder therein; and a running gear that facilitates movement of the portable engine driven welder by manual pushing, the running, gear comprising, a pair of rails connected to the bottom wall of the case and extending in a longitudinal direction with respect to the case and defining front tapering segment; a pair of leading wheels defining a diameter thereof and being connected to the rails at a location that is outward of the ease and the pair of rails, the leading wheels arranged with respect to the rails so that the front tapering segments of the rails intersect lower portions of the leading wheels and extend angularly from the lower portions of the leading wheels toward the bottom wall of the case, wherein the front tapering segments of the rails and leading wheels are arranged with respect to each other for guiding obstacles encountered b the running gear to contact the lower portions of the leading wheels; and a pair of trailing wheels defining a diameter thereof that is smaller than the diameter of the leading wheels, the pair of trailing wheels being connected to the rails at a location that is outward of the case and the pair of rails.