Patent ID: 7458295

Claim:
An interchangeably manual or automatic ratchet wrench tool comprising a tool body including a rotating member having peripheral teeth and driven teeth formed therearound, respectively, including a driving piece attached therein and having engaging tabs mounted thereon for correspondingly engaging with said peripheral teeth of said rotating member, thereby driving the rotating member, said tool body further including a motor driven by a power source assembly and affixed at another end thereof, said motor including a worm shaft disposed at one end thereof, for meshing with a worm gear which is rotatably disposed in said tool body by a first bolt element, and between said worm gear and said driven teeth of said rotating member being defined with a transmission set for couplingly urging said rotating member; wherein said tool body includes a through groove provided at one end thereof for receiving said rotating member; further comprising said tool body including a receiving block extendedly mounted therein, for receiving a spring and a detent, and said driving piece including first, second and third engaging recesses attached on another side thereof so that a detent correspondingly presses against one of said first, second and third engaging recesses; wherein said driving piece includes actuation portions extended out of said tool body; wherein said motor is controllably turned on/off and rotated in a clockwise direction or a counterclockwise direction by a switch; and wherein a transmission set includes a first transmitting gear also rotatably mounted in said tool body by said first bolt element and simultaneously rotates with said worm gear, furthermore, a second bolt element is used to pivotally dispose a second transmitting gear and a pulley which causes a simultaneous rotation with each other, and said first transmitting gear engages with said second transmitting gear, and said pulley is engageably connected with said driven teeth of said rotating member by a belt.