HYDRO-IMPULSSCHRAUBER

The hydraulically impulsed screwdriver has a motor (3) and a striking mechanism (4), which possesses a cylinder (14, 16, 17) connected to a motor shaft (9) so as to be fixed in terms of rotation, and an output shaft (19) rotatable relative to it. The output shaft penetrates the cylinder (14, 16, 17)...

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Bibliographische Detailangaben
Hauptverfasser:	KARL,. KETTNER,KONRAD, MATTHEISS,EUGEN, ANDERS,HEINZ-GERHARD
Format:	Patent
Sprache:	ger
Schlagworte:	HAND TOOLS MANIPULATORS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING TRANSPORTING
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Beschreibung
Zusammenfassung:	The hydraulically impulsed screwdriver has a motor (3) and a striking mechanism (4), which possesses a cylinder (14, 16, 17) connected to a motor shaft (9) so as to be fixed in terms of rotation, and an output shaft (19) rotatable relative to it. The output shaft penetrates the cylinder (14, 16, 17) and is arranged eccentrically with respect to the cylinder space (24). To switch off the screwdriver, a switching-off device (54, 55, 35), actuated as a function of the pressure of the hydraulic medium in the cylinder space (24), is used. The criterion employed for the switching-off time is the pressure in the cylinder space (24) of the striking mechanism (4), which is proportional to the torque prevailing in each case. The screwdriver is switched off only when the corresponding pressure and thus the desired tightening torque is reached.