Hand power tool, in particular drilling screwdriver

Details Hand power tool, in particular drilling screwdriver Hand power tool, in particular drilling screwdriver

2007-06-05

2007-06-05

Nash, Brian (Department: 3721)

Tool driving or impacting

Impacting devices

With anvil arranged to transmit torsional impact to tool

C173S048000, C173S093000, C173S205000, C173S216000

Reexamination Certificate

active

11256741

ABSTRACT:
A hand power tool has a tool spindle rotatable by a drive train, a cam device located in the drive train and having two cam discs in engagement with one another for transmitting axial percussion motions to the tool spindle, an overloading coupling located in the drive train and having two coupling parts which are in engagement with one another and are overloadable counter to an axially exerted force, a blocking device which upon its activation blocks a relative rotation of the coupling parts of the overloading coupling to one another, and an operating mode setting device for setting “percussion drilling”, “drilling” and “screw driving” operating modes, and also a magnitude of an overlocking moment upon screwdriving and having one torque adjusting ring for setting the “drilling” operating mode and the “screwdriving” operating mode, with preselection of the magnitude of the overlocking moment, and another adjusting the “percussion drilling” operating mode on and off, and in “on” position overrides any operating mode set by the torque adjusting ring.

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patent: 6976545 (2005-12-01), Greitmann
patent: 100 06 641 (2000-09-01), None

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