Patent ID: 7089625

Claim:
A shaft of a tool with an adjustable length, the shaft comprising a first shaft section and a second shaft section which are attached to each other by adjusting means and are movable telescopically with respect to each other when the shaft length is adjusted, the adjusting means for adjusting the shaft length comprising a sleeve fixed to the second shaft section and having a flange with an opening and an at least partly toothed spindle fixed to the first shaft section and having several successive teeth along the spindle, the first end of the spindle being taken through the opening of the sleeve, the sleeve and the spindle attach the first and the second shaft section adjustably to each other so that the sleeve and the spindle can be turned with respect to each other into a position preventing the adjustment of the shaft length where the flange is tightened between a pair of successive teeth and into a position allowing the adjustment of the shaft length where the spindle can move in the opening of the flange of the sleeve in the longitudinal direction, the adjusting means also comprising a locking member by means of which the sleeve and the spindle can be turned with respect to each other into a position preventing the adjustment of the shaft length or into a position allowing the adjustment of the shaft length where the spindle can move in the sleeve in the longitudinal direction.