Device having a torque-limiting unit
AssigneeRobert Bosch GmbH
InventorsKarl Frauhammer, Gerhard Meixner, Heinz Schnerring
Life of this patent
Estimating the term…
Abstract
A device has a torque-limiting unit of a power drill, wherein torque-limiting unit is intended to limit a screwdriving moment in a screwdriving function; and a power drill is provided with the new torque-limiting unit.
Claims11
A power drill comprising, a motor for creating torque, a hammer barrel, a tool holder for receiving screwdriver bits to provide for a screwdriving function and for receiving drill bits to provide for a percussive drilling function, a snap die, a torque-limiting unit having means for limiting a screwdriving torque in the screwdriving function to a continuously variably adjustable limiting moment that is less than 15 Nm, and which is operative between the hammer barrel and the tool holder, and further comprising a second torque-limiting unit consisting of an overload clutch, which in the percussive drilling function finds use as a safety overload clutch.
Dependencies are inferred from the claim text.