| 摘要 |
<p>An electrical wrench includes a motor, a flywheel body with a U-shape hollow space, a transmission member coupled with the spindle of the motor fixedly and disposed inside the flywheel body, a striking member which is mounted within the U-shape hollow space and is inserted into the axial hole of the flywheel body. The striking member may engage with the wrench shaft and pivot about a fixed pin which both ends are inserted into holes in both side walls of the U-shape hollow space. The striking member and the flywheel body can rotate synchronously when the motor drives the transmission member.</p> |
