| 摘要 |
A motorized screw driving tool including a motor adapted to generate a rotating force, an inertia wheel coupled to the motor and provided with power transmission assembly, and a spindle adapted to received power from the inertia wheel and provided with a power receiving member. The power transmission assembly includes an actuating member resiliently mounted at one side of the inertia wheel and provided at opposite sides thereof with protruded pins, a pair of guide members adapted to guide a slide movement of the actuating member and provided with guide slots receiving the protruded pins, a cylindrical support member mounted at the other side of the inertia wheel and provided at opposite sides thereof with a pair of slots, a slide member slidably fitted in the cylindrical support member, a pair of cam members pivotally connected to the slide member by a pin extending through the slide member and the slots of the cylindrical support member, and a pair of links each pivotally coupled at one end thereof to an associated one of the cam members and at the other end thereof to the associated pin of the actuating member. The power receiving member includes a lever fixedly mounted around the spindle and provided with a groove in which the slide member is engagable.
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