Techtronic Power Tools Technology Limited

Eastway Fair Company Limited

Weldon H Clark, Jr

Jason Porter Whitmire

Elton Lee Watson

An impact rotary tool is provided that is switchable between an impact mode where the tool delivers an impacting torque on an output tool and a drill mode where the driver delivers a smooth output on an output tool. The impact rotary tool includes an impact mechanism and a hammer block that in the impact mode is movable parallel to the axis of the driver shaft and delivers reciprocating blows to rotate an anvil and in the drill mode substantially constantly engages the anvil. The impact mechanism includes a stopper that does not contact the hammer block in the impact mode and engages the hammer block in the drill mode to maintain the substantially constant contact between the hammer block and the anvil.

Impact rotary tool with drill mode

A shaft comprises an input portion and a tang. The tang has a first section, a second section, and a radial bore. The second section is disposed between the first section and the input portion along an axis. A radial cross section of the first section is less than a radial cross section of the second section. The radial bore is disposed on the first section.

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Liberty, SC, United States of America

Weldon H Clark, Jr