Crane having power operated outriggers and lock means therefor

A mobile crane comprising, an elongated main frame, ground engaging means on said frame for supporting said frame for movement over the ground, a superstructure rotatably mounted on said frame and having an elevational boom pivoted thereto;

• and a pair of outriggers each having an inner end pivotally secured to said main frame at a location intermediate the length of said frame, one outrigger being secured to said frame at each side thereof and about a vertical axis for swinging between a transport position alongside said elongated main frame and a boom operative position extending transversely outwardly of said main frame, said inner end of said outriggers being of bifurcated construction formed by a generally semi-circular plane welded transversely across said inner end and defining an outwardly facing recessed pocket, power operated means mounted on said outriggers and in said pocket for swinging said outriggers relative to said main frame, said power operated means comprising a hydraulic motor and a gear reducer driven thereby, said motor and reducer being disposed in a vertical direction, and a pinion gear attached to the lower end of said reducer and driven by said reducer, and a gear segment secured to said main frame adjacent a lower side of said main frame, said segment being in mesh with said pinion gear whereby rotation of said pinion gear causes swinging of said outrigger.