Elastic band powered ball projecting machine

摘要

An elastic band powered ball projecting machine is capable of hurling baseball, softball, tennis ball and simulated ball for batting practice. The machine includes a tube assembly within which a carrier and a piston slide rearwardly between a neutral position and a loaded position and forwardly between the loaded position and a release position. An elastic band is disposed in the piston and the two ends of the elastic band are secured on a frame which is mounted on a supporting assembly. The piston is linked with a roller of a clutch and ratchet mechanism by a wire. The elastic band is stretched under the tension of its own elasticity between the neutral position and the loaded position by pedaling a clutch and ratchet mechanism. A ball placed in the carrier is propelled forwardly out of the tube assembly when a release handle pushes a clutch sleeve of the clutch and ratchet mechanism and the clutch sleeve disengage with the roller of the clutch and ratchet mechanism to release the stored energy in the tension bands.