Robert Boschgmbh

Robert Klenk

Wolfgang Backe

Egbert Schneider

Hermann Krotz

Dieter Gotsch

Otto Hafner

Horst Weidner

Claus Suss

Pulse impact mechanism, in particular for pulse screwing device

In a power-driven, hand-held tool provided with a pneumatic motor, the stator of the motor is comprised of a central tube of steel and two end flanges of plastics applied onto the central tube by injection molding. The impeller rotor of the motor is supported within the stator and assembled with the stator to form a complete motor assembly which is supported within the cylindrical housing of the tool by means of elastic rings which protect the tool against oscillations. The motor assembly can be assembled and tested outside the tool housing.

Power-driven hand-held tool with a pneumatic motor

To remove, by suction, chips and debris arising in operation of a hand-cutting tool, for example a sheet-metal nibbling tool, a saber saw, or the like, an ejection nozzle is surrounded by a preferably plastic body defining, internally a Venturi, and externally of the ejection nozzle a vacuum, underpressure or suction chamber which is connected through a preferably flexible hose to a suction pick-up nozzle, removably attached adjacent a reciprocating tool at the working or cutting head of the tool. The suction pick-up nozzle preferably includes a chamber in direct air communication with the tool so that chips which arise in tool operation are directly drawn into the pick-up nozzle for removal, by air flow suction, through the suction duct and to a collecting and disposal hose.

Pneumatic hand tool with vacuum debris removal

Growing community of inventors

Grosserlach, Germany

Robert Klenk