公开(公告)号：US5769064A

公开(公告)日：1998-06-23

申请号：US438047

申请日：1995-05-08

申请人： Jian Gang Lu ,  Xian Li Ni

发明人： Jian Gang Lu ,  Xian Li Ni

IPC分类号： A63B69/40 ,  F41B7/00

CPC分类号： A63B69/407

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.

摘要翻译： 弹力带动力投球机能够击球棒球，垒球，网球和模拟球进行击球练习。 该机器包括管组件，载体和活塞在该管组件内在中间位置和装载位置之间向后滑动，并且在装载位置和释放位置之间向前。 弹性带设置在活塞中，并且弹性带的两端固定在安装在支撑组件上的框架上。 活塞通过电线与离合器和棘轮机构的辊连接。 通过踩踏离合器和棘轮机构，弹性带在其中性位置和装载位置之间的自身弹性的张力下被拉伸。 当释放手柄推动离合器和棘轮机构的离合器套件并且离合器套筒与离合器和棘轮机构的辊脱离时，放置在托架中的球向前推出管组件，以释放存储的能量。 乐队。