Hand tool machine, in particular drilling machine

Details Hand tool machine, in particular drilling machine Hand tool machine, in particular drilling machine

1983-09-12

1987-06-16

Bilinsky, Z. R.

Cutting by use of rotating axially moving tool

With control means energized in response to activator...

To control tool rotation

173170, 408 3, B23B 4502, H02P 728

Patent

active

046733183

ABSTRACT:
A hand tool machine, in particular a drill machine, has a feeler device for determining the diameter of a tool element to be used with the hand tool machine. For measuring the tool elements prior to insertion into the clamping element of the hand tool machine, a feeler device is provided which is arranged separately from the clamping element and is connected with an indicator. The diameter determined by the feeler device is administered to a control unit which is controlling the driving motor. The control unit can also receive in addition further information concerning the material to be treated by means of an input device. In view of the measuring value with regard to the diameter of the tool element and the administered information concerning the material, the optimum rotary speed for the tool element and consequently for the driving motor is determined and adjusted.

REFERENCES:
patent: 3817647 (1974-06-01), Lemelson

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