Hand-held power tool, in particular drill screw driver
AssigneeRobert Bosch GmbH
InventorThomas Mayer
Life of this patent
Estimating the term…
Abstract
A hand held power tool has a coupling formed for transmission of torques of different values and including at least two coupling parts provided with transmission members for rotary-fixed connection with one another, a coupling spring having an adjustable tensioning force operatable for holding one of the coupling members of one of the coupling parts in a rotary-locked engagement with another of the coupling members of another of the coupling parts, and blocking members with which the coupling parts are rotary-fixed coupled in addition to the transmission members, and which are bringable in engagement with one another in a drilling operation or an impact drilling operation for transmitting a maximum torque.
Claims14
A hand held power tool, comprising a coupling for transmission of torques of different values up to a maximum value and including at least two coupling parts provided with transmission members for rotary-fixed connection with one another;
- a coupling spring having an adjustable tensioning force, via an adjusting member, and operatable for holding one of said transmission members of one of said coupling parts in a rotary-locked engagement with another of said transmission members of another of said coupling parts;
- and blocking members with which said coupling parts are rotary-fixed coupled in addition to said transmission members, and said blocking members are non-rotatably and axially-displaceably disposed on one of said coupling parts and are bringable in engagement with blocking surfaces on the other one of said coupling parts via an adjusting sleeve in a drilling operation or an impact drilling operation and then remain in engagement independently from the value of the transmitting torque.
Dependencies are inferred from the claim text.