| 摘要 |
A tool (300, Figure 3), such as an impact wrench, for applying an impact force to a work piece includes an anvil 100 having a rotatable shaft 125 extending in an axial direction. First and second hammers 155, 160 are each adapted to rotate about the shaft and are disposed proximate one another along a hammer interface (165, Figure 3). First and second axially-extending wings 135, 145 are laterally disposed on the shaft. The wings overlap with one another in the axial direction across the hammer interface to define respective first and second overlapping portions. The hammers each define a recess 170, 175 to receive the first and second overlapping portions during rotation of the first and second hammers. The overlapping portions may include surfaces that are slanted or orthogonal relative to the shaft. An alternative anvil for applying an impact force includes a shaft with two overlapping wings across an interface of two hammers to define two overlapping portions. |
