| 摘要 |
A pneumatic impact tool having a special cushioning assembly for cushioning the repeated recoil of a hammer piston and thereby providing substantially reduced tool vibration during use. The cushioning assembly includes an energy-dissipating damping sub-assembly and an energy-storing coil spring sub-assembly arranged in series with each other such that they operate simultaneously, yet independently, to cushion the hammer piston's rearward movement over a wide range of operating speeds. |
