HAND TOOL MACHINE, ESPECIALLY A DRILLING MACHINE

1. Hand tool machine (1), in particular drilling machine, with a device for the speed control of its work spindle (4) dependent on the tool diameter by means of a tool-diameter dependent axially displaceable contact element (5, 6, 7) characterized in that the axially displaceable contact element (5,...

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Bibliographische Detailangaben
1. Verfasser:	SUCHOWERSKYJ, WADYM
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	BORING INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT MACHINE TOOLS MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PHYSICS TESTING TRANSPORTING TURNING
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Beschreibung
Zusammenfassung:	1. Hand tool machine (1), in particular drilling machine, with a device for the speed control of its work spindle (4) dependent on the tool diameter by means of a tool-diameter dependent axially displaceable contact element (5, 6, 7) characterized in that the axially displaceable contact element (5, 6, 7) comprises an axially symmetric diaphragm (7), the axial position of which in relation to a light or Hall barrier (10) crossing its axis of rotation is dependent on the diameter of the tool (18) clamped with the tool clamping element (5) and has identical diaphragm parts (8) uniformly distributed about the circumference of the diaphragm (7) of varying width in the direction of the axis of rotation (axis of rotation of the work spindle 4) and in that the light or Hall barrier (10) is connected by means of an evaluation circuit (12) known per se to a speed governor (14) of the motor (2) of the hand tool machine (1).