Patent ID: 6058810
Filing Date: 2000-05-09
Classification: B25B

Abstract:
A power tool for moving an element in an axial direction relative to an object, comprising a plurality of screw members which are screwed in threaded openings of the element and are arranged around an axis so as to be spaced from one another, each of said screw members having a first end adapted to interact with the object and an opposite second end; and drive means including an action drive and a reaction drive arranged coaxially to said axis and with one another and turnable in opposite directions, either of said action drive or reaction drive engaging an outer circumference of said screw members while the other of said action drive or reaction drive engaging an inner circumference of said screw members so that when the power tool is activated said drives are turned in opposite directions and turn said screw members in one and the same direction to thereby move the element in an axial direction.