Patent ID: 6863059

Claim:
A three-axis adjustment ball pitching machine comprising an azimuth adjustment device comprising a base having a lower housing and multiple legs radially attached to the lower housing, and the lower housing having a top, an inner chamber, a top opening defined in the top and communicating with the inner chamber and a transverse hole communicated with the inner chamber; an azimuth adjustment transmission assembly mounted in the inner chamber of the lower housing; a connecting shaft mounted and held rotatably in the transverse hole and connected to the azimuth adjustment transmission assembly; and an azimuth adjustment handwheel attached to the connecting shaft; an elevation adjustment device rotatably mounted on the top of the lower housing and comprising a body having a top, a bottom, an elongated slot defined in the top and an inner space; an upper housing attached to the bottom of the body and having a bottom rotatably mounted on the top of the lower housing; a gear connecting rod attached to the bottom of the upper housing and connected to the azimuth adjustment transmission assembly through the connecting shaft; and an elevation adjustment assembly comprising a pivot seat pivotally mounted in the inner space in the body and comprising a hollow cage with a top and a bottom pivotally mounted in the inner space in the body and a pivot sleeve attached to the bottom of the cage; a stationary pivot rod mounted in the upper housing, held in the pivot sleeve and having two opposite ends held in the upper housing; two guiding rods mounted in the inner space in the body, being parallel with each other and arranged along the elongated slot in the body; a transitional cylinder movably mounted in the cage to pivot the cage about the pivot rod and comprising a cylindrical body movably mounted in the cage and having two opposite end couplings respectively mounted on and slidably held by the guiding rods; a threaded leading rod rotatably mounted in the inner space in the body between the guiding rods and rotatably held in the cylindrical body; and an elevation adjustment handwheel connected to the threaded leading rod to rotate the threaded leading rod to move the cylindrical body; a strut attached to the top of the cage and having a bent segment formed outside the body and a horizontal segment integrally formed with the bent segment; an angle adjustment device mounted on the horizontal segment and comprising a stationary disk attached to the horizontal segment of the strut; a mounting housing rotatably mounted on the horizontal segment of the strut around the stationary disk; an angle adjustment transmission device mounted in the mounting housing to rotate the mounting housing about the horizontal segment of the strut; and an angle adjustment handwheel connected to the angle adjustment transmission device; and a pitching assembly attached to the mounting housing of the angle adjustment device.